sadf: Add discard I/O metric to all output formats

[sysstat] / svg_stats.c

/*
 * svg_stats.c: Funtions used by sadf to display statistics in SVG format.
 * (C) 2016-2018 by Sebastien GODARD (sysstat <at> orange.fr)
 *
 ***************************************************************************
 * This program is free software; you can redistribute it and/or modify it *
 * under the terms of the GNU General Public License as published  by  the *
 * Free Software Foundation; either version 2 of the License, or (at  your *
 * option) any later version.                                              *
 *                                                                         *
 * This program is distributed in the hope that it  will  be  useful,  but *
 * WITHOUT ANY WARRANTY; without the implied warranty  of  MERCHANTABILITY *
 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License *
 * for more details.                                                       *
 *                                                                         *
 * You should have received a copy of the GNU General Public License along *
 * with this program; if not, write to the Free Software Foundation, Inc., *
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA              *
 ***************************************************************************
 */

#include <stdio.h>
#include <string.h>
#include <stdarg.h>
#include <stdlib.h>
#include <float.h>

#include "sa.h"
#include "ioconf.h"
#include "svg_stats.h"

#ifdef USE_NLS
#include <locale.h>
#include <libintl.h>
#define _(string) gettext(string)
#else
#define _(string) (string)
#endif

extern unsigned int flags;

unsigned int svg_colors[] = {0x00cc00, 0xff00bf, 0x00ffff, 0xff0000,
                             0xe85f00, 0x0000ff, 0x006020, 0x7030a0,
                             0xffff00, 0x666635, 0xd60093, 0x00bfbf,
                             0xcc3300, 0x50040f, 0xffffbf, 0x193d55};
#define SVG_COLORS_IDX_MASK     0x0f

/*
 ***************************************************************************
 * Compare the values of a statistics sample with the max and min values
 * already found in previous samples for this same activity. If some new
 * min or max values are found, then save them.
 * Assume values cannot be negative.
 * The structure containing the statistics sample is composed of @llu_nr
 * unsigned long long fields, followed by @lu_nr unsigned long fields, then
 * followed by @u_nr unsigned int fields.
 *
 * IN:
 * @types_nr    Number of fields whose type is "long long", "long" and "int"
 *              composing the structure.
 * @cs          Pointer on current sample statistics structure.
 * @ps          Pointer on previous sample statistics structure (may be NULL).
 * @itv         Interval of time in 1/100th of a second.
 * @spmin       Array containing min values already found for this activity.
 * @spmax       Array containing max values already found for this activity.
 * @g_fields    Index in spmin/spmax arrays where extrema values for each
 *              activity metric will be saved. As a consequence spmin/spmax
 *              arrays may contain values in a different order than that of
 *              the fields in the statistics structure.
 *
 * OUT:
 * @spmin       Array containg the possible new min values for current activity.
 * @spmax       Array containg the possible new max values for current activity.
 ***************************************************************************
 */
void save_extrema(unsigned int types_nr[], void *cs, void *ps, unsigned long long itv,
                  double *spmin, double *spmax, int g_fields[])
{
        unsigned long long *lluc, *llup;
        unsigned long *luc, *lup;
        unsigned int *uc, *up;
        double val;
        int i, m = 0;

        /* Compare unsigned long long fields */
        lluc = (unsigned long long *) cs;
        llup = (unsigned long long *) ps;
        for (i = 0; i < types_nr[0]; i++, m++) {
                if (ps) {
                        val = *lluc < *llup ? 0.0 : S_VALUE(*llup, *lluc, itv);
                }
                else {
                        /*
                         * If no pointer on previous sample has been given
                         * then the value is not a per-second one.
                         */
                        val = (double) *lluc;
                }
                if (val < *(spmin + g_fields[m])) {
                        *(spmin + g_fields[m]) = val;
                }
                if (val > *(spmax + g_fields[m])) {
                        *(spmax + g_fields[m]) = val;
                }
                lluc = (unsigned long long *) ((char *) lluc + ULL_ALIGNMENT_WIDTH);
                if (ps) {
                        llup = (unsigned long long *) ((char *) llup + ULL_ALIGNMENT_WIDTH);
                }
        }

        /* Compare unsigned long fields */
        luc = (unsigned long *) lluc;
        lup = (unsigned long *) llup;
        for (i = 0; i < types_nr[1]; i++, m++) {
                if (ps) {
                        val = *luc < *lup ? 0.0 : S_VALUE(*lup, *luc, itv);
                }
                else {
                        val = (double) *luc;
                }
                if (val < *(spmin + g_fields[m])) {
                        *(spmin + g_fields[m]) = val;
                }
                if (val > *(spmax + g_fields[m])) {
                        *(spmax + g_fields[m]) = val;
                }
                luc = (unsigned long *) ((char *) luc + UL_ALIGNMENT_WIDTH);
                if (ps) {
                        lup = (unsigned long *) ((char *) lup + UL_ALIGNMENT_WIDTH);
                }
        }

        /* Compare unsigned int fields */
        uc = (unsigned int *) luc;
        up = (unsigned int *) lup;
        for (i = 0; i < types_nr[2]; i++, m++) {
                if (ps) {
                        val = *uc < *up ? 0.0 : S_VALUE(*up, *uc, itv);
                }
                else {
                        val = (double) *uc;
                }
                if (val < *(spmin + g_fields[m])) {
                        *(spmin + g_fields[m]) = val;
                }
                if (val > *(spmax + g_fields[m])) {
                        *(spmax + g_fields[m]) = val;
                }
                uc = (unsigned int *) ((char *) uc + U_ALIGNMENT_WIDTH);
                if (ps) {
                        up = (unsigned int *) ((char *) up + U_ALIGNMENT_WIDTH);
                }
        }
}

/*
 ***************************************************************************
 * Find the min and max values of all the graphs that will be drawn in the
 * same view. The graphs have their own min and max values in
 * spmin[pos...pos+n-1] and spmax[pos...pos+n-1]. 
 *
 * IN:
 * @pos         Position in array for the first graph extrema value.
 * @n           Number of graphs to scan.
 * @spmin       Array containing min values for graphs.
 * @spmax       Array containing max values for graphs.
 *
 * OUT:
 * @gmin        Global min value found.
 * @gmax        Global max value found.
 ***************************************************************************
 */
void get_global_extrema(int pos, int n, double *spmin, double *spmax,
                        double *gmin, double *gmax)
{
        int i;

        *gmin = *(spmin + pos);
        *gmax = *(spmax + pos);

        for (i = 1; i < n; i++) {
                if (*(spmin + pos + i) < *gmin) {
                        *gmin = *(spmin + pos + i);
                }
                if (*(spmax + pos + i) > *gmax) {
                        *gmax = *(spmax + pos + i);
                }
        }
}

/*
 ***************************************************************************
 * Allocate arrays used to save graphs data, min and max values.
 * @n arrays of chars are allocated for @n graphs to draw. A pointer on this
 * array is returned. This is equivalent to "char data[][n]" where each
 * element is of indeterminate size and will contain the graph data (eg.
 * << path d="M12,14 L13,16..." ... >>.
 * The size of element data[i] is given by outsize[i].
 * Also allocate an array to save min values (equivalent to "double spmin[n]")
 * and an array for max values (equivalent to "double spmax[n]").
 *
 * IN:
 * @n           Number of graphs to draw for current activity.
 *
 * OUT:
 * @outsize     Array that will contain the sizes of each element in array
 *              of chars. Equivalent to "int outsize[n]" with
 *              outsize[n] = sizeof(data[][n]).
 * @spmin       Array that will contain min values for current activity.
 * @spmax       Array that will contain max values for current activity.
 *
 * RETURNS:
 * Pointer on array of arrays of chars that will contain the graphs data.
 *
 * NB: @min and @max arrays contain values in the same order as the fields
 * in the statistics structure.
 ***************************************************************************
 */
char **allocate_graph_lines(int n, int **outsize, double **spmin, double **spmax)
{
        char **out;
        char *out_p;
        int i;

        /*
         * Allocate an array of pointers. Each of these pointers will
         * be an array of chars.
         */
        if ((out = (char **) malloc(n * sizeof(char *))) == NULL) {
                perror("malloc");
                exit(4);
        }
        /* Allocate array that will contain the size of each array of chars */
        if ((*outsize = (int *) malloc(n * sizeof(int))) == NULL) {
                perror("malloc");
                exit(4);
        }
        /* Allocate array that will contain the min value of each graph */
        if ((*spmin = (double *) malloc(n * sizeof(double))) == NULL) {
                perror("malloc");
                exit(4);
        }
        /* Allocate array that will contain the max value of each graph */
        if ((*spmax = (double *) malloc(n * sizeof(double))) == NULL) {
                perror("malloc");
                exit(4);
        }
        /* Allocate arrays of chars that will contain graphs data */
        for (i = 0; i < n; i++) {
                if ((out_p = (char *) malloc(CHUNKSIZE * sizeof(char))) == NULL) {
                        perror("malloc");
                        exit(4);
                }
                *(out + i) = out_p;
                *out_p = '\0';                  /* Reset string so that it can be safely strncat()'d later */
                *(*outsize + i) = CHUNKSIZE;    /* Each array of chars has a default size of CHUNKSIZE */
                *(*spmin + i) = DBL_MAX;        /* Init min and max values */
                *(*spmax + i) = -DBL_MAX;
        }

        return out;
}

/*
 ***************************************************************************
 * Save SVG code for current graph.
 *
 * IN:
 * @data        SVG code to append to current graph definition.
 * @out         Pointer on array of chars for current graph definition.
 * @outsize     Size of array of chars for current graph definition.
 *
 * OUT:
 * @out         Pointer on array of chars for current graph definition that
 *              has been updated with the addition of current sample data.
 * @outsize     Array that containing the (possibly new) sizes of each
 *              element in array of chars.
 ***************************************************************************
 */
void save_svg_data(char *data, char **out, int *outsize)
{
        char *out_p;
        int len;

        out_p = *out;
        /* Determine space left in array */
        len = *outsize - strlen(out_p) - 1;
        if (strlen(data) >= len) {
                /*
                 * If current array of chars doesn't have enough space left
                 * then reallocate it with CHUNKSIZE more bytes.
                 */
                SREALLOC(out_p, char, *outsize + CHUNKSIZE);
                *out = out_p;
                *outsize += CHUNKSIZE;
                len += CHUNKSIZE;
        }
        strncat(out_p, data, len);
}

/*
 ***************************************************************************
 * Update line graph definition by appending current X,Y coordinates.
 *
 * IN:
 * @timetag     Timestamp in seconds since the epoch for current sample
 *              stats. Will be used as X coordinate.
 * @value       Value of current sample metric. Will be used as Y coordinate.
 * @out         Pointer on array of chars for current graph definition.
 * @outsize     Size of array of chars for current graph definition.
 * @restart     Set to TRUE if a RESTART record has been read since the last
 *              statistics sample.
 *
 * OUT:
 * @out         Pointer on array of chars for current graph definition that
 *              has been updated with the addition of current sample data.
 * @outsize     Array that containing the (possibly new) sizes of each
 *              element in array of chars.
 ***************************************************************************
 */
void lnappend(unsigned long long timetag, double value, char **out, int *outsize,
              int restart)
{
        char data[128];

        /* Prepare additional graph definition data */
        snprintf(data, 128, " %c%llu,%.2f", restart ? 'M' : 'L', timetag, value);
        data[127] = '\0';

        save_svg_data(data, out, outsize);
}

/*
 ***************************************************************************
 * Update line graph definition by appending current X,Y coordinates. Use
 * (unsigned long) integer values here.
 *
 * IN:
 * @timetag     Timestamp in seconds since the epoch for current sample
 *              stats. Will be used as X coordinate.
 * @value       Value of current sample metric. Will be used as Y coordinate.
 * @out         Pointer on array of chars for current graph definition.
 * @outsize     Size of array of chars for current graph definition.
 * @restart     Set to TRUE if a RESTART record has been read since the last
 *              statistics sample.
 *
 * OUT:
 * @out         Pointer on array of chars for current graph definition that
 *              has been updated with the addition of current sample data.
 * @outsize     Array that containing the (possibly new) sizes of each
 *              element in array of chars.
 ***************************************************************************
 */
void lniappend(unsigned long long timetag, unsigned long long value, char **out,
               int *outsize, int restart)
{
        char data[128];

        /* Prepare additional graph definition data */
        snprintf(data, 128, " %c%llu,%llu", restart ? 'M' : 'L', timetag, value);
        data[127] = '\0';

        save_svg_data(data, out, outsize);
}

/*
 ***************************************************************************
 * Update bar graph definition by adding a new rectangle.
 *
 * IN:
 * @timetag     Timestamp in seconds since the epoch for current sample
 *              stats. Will be used as X coordinate.
 * @value       Value of current sample metric. Will be used as rectangle
 *              height.
 * @offset      Offset for Y coordinate.
 * @out         Pointer on array of chars for current graph definition.
 * @outsize     Size of array of chars for current graph definition.
 * @dt          Interval of time in seconds between current and previous
 *              sample.
 *
 * OUT:
 * @out         Pointer on array of chars for current graph definition that
 *              has been updated with the addition of current sample data.
 * @outsize     Array that containing the (possibly new) sizes of each
 *              element in array of chars.
 ***************************************************************************
 */
void brappend(unsigned long long timetag, double offset, double value, char **out,
              int *outsize, unsigned long long dt)
{
        char data[128];
        unsigned long long t = 0;

        /* Prepare additional graph definition data */
        if ((value == 0.0) || (dt == 0))
                /* Don't draw a flat rectangle! */
                return;
        if (dt < timetag) {
                t = timetag -dt;
        }

        snprintf(data, 128, "<rect x=\"%llu\" y=\"%.2f\" height=\"%.2f\" width=\"%llu\"/>",
                 t, MINIMUM(offset, 100.0), MINIMUM(value, (100.0 - offset)), dt);
        data[127] = '\0';

        save_svg_data(data, out, outsize);

}

/*
 ***************************************************************************
 * Update CPU graph and min/max values for each metric.
 *
 * IN:
 * @timetag     Timestamp in seconds since the epoch for current sample
 *              stats. Will be used as X coordinate.
 * @offset      Offset for Y coordinate.
 * @value       Value of current CPU metric. Will be used as rectangle
 *              height.
 * @out         Pointer on array of chars for current graph definition.
 * @outsize     Size of array of chars for current graph definition.
 * @dt          Interval of time in seconds between current and previous
 *              sample.
 * @spmin       Min value already found for this CPU metric.
 * @spmax       Max value already found for this CPU metric.
 *
 * OUT:
 * @offset      New offset value, to use to draw next rectangle
 * @out         Pointer on array of chars for current graph definition that
 *              has been updated with the addition of current sample data.
 * @outsize     Array that containing the (possibly new) sizes of each
 *              element in array of chars.
 ***************************************************************************
 */
void cpuappend(unsigned long long timetag, double *offset, double value, char **out,
               int *outsize, unsigned long long dt, double *spmin, double *spmax)
{
        /* Save min and max values */
        if (value < *spmin) {
                *spmin = value;
        }
        if (value > *spmax) {
                *spmax = value;
        }
        /* Prepare additional graph definition data */
        brappend(timetag, *offset, value, out, outsize, dt);

        *offset += value;
}

/*
 ***************************************************************************
 * Update rectangular graph and min/max values.
 *
 * IN:
 * @timetag     Timestamp in seconds since the epoch for current sample
 *              stats. Will be used as X coordinate.
 * @p_value     Metric value for previous sample
 * @value       Metric value for current sample.
 * @out         Pointer on array of chars for current graph definition.
 * @outsize     Size of array of chars for current graph definition.
 * @restart     Set to TRUE if a RESTART record has been read since the last
 *              statistics sample.
 * @dt          Interval of time in seconds between current and previous
 *              sample.
 * @spmin       Min value already found for this metric.
 * @spmax       Max value already found for this metric.
 *
 * OUT:
 * @out         Pointer on array of chars for current graph definition that
 *              has been updated with the addition of current sample data.
 * @outsize     Array that containing the (possibly new) sizes of each
 *              element in array of chars.
 * @spmin       Min value for this metric.
 * @spmax       Max value for this metric.
 ***************************************************************************
 */
void recappend(unsigned long long timetag, double p_value, double value, char **out,
               int *outsize, int restart, unsigned long long dt,
               double *spmin, double *spmax)
{
        char data[512], data1[128], data2[128];
        unsigned long long t = 0;

        /* Save min and max values */
        if (value < *spmin) {
                *spmin = value;
        }
        if (value > *spmax) {
                *spmax = value;
        }
        if (dt < timetag) {
                t = timetag -dt;
        }
        /* Prepare additional graph definition data */
        if (restart) {
                snprintf(data1, sizeof(data1), " M%llu,%.2f", t, p_value);
                data1[sizeof(data1) - 1] = '\0';
        }
        if (p_value != value) {
                snprintf(data2, sizeof(data2), " L%llu,%.2f", timetag, value);
                data2[sizeof(data2) - 1] = '\0';
        }
        snprintf(data, sizeof(data), "%s L%llu,%.2f%s", restart ? data1 : "", timetag, p_value,
                 p_value != value ? data2 : "");
        data[sizeof(data) - 1] = '\0';

        save_svg_data(data, out, outsize);
}

/*
 ***************************************************************************
 * Calculate 10 raised to the power of n.
 *
 * IN:
 * @n   Power number to use.
 *
 * RETURNS:
 * 10 raised to the power of n.
 ***************************************************************************
 */
unsigned int pwr10(int n)
{
        int i;
        unsigned int e = 1;

        for (i = 0; i < n; i++) {
                e = e * 10;
        }

        return e;
}

/*
 ***************************************************************************
 * Autoscale graphs of a given view.
 *
 * IN:
 * @asf_nr      (Maximum) number of autoscale factors.
 * @group       Number of graphs in current view.
 * @g_type      Type of graph (SVG_LINE_GRAPH, SVG_BAR_GRAPH).
 * @pos         Position in array for the first graph in view.
 * @gmax        Global max value for all graphs in view.
 * @spmax       Array containing max values for graphs.
 *
 * OUT:
 * @asfactor    Autoscale factors (one for each graph).
 ***************************************************************************
 */
void gr_autoscaling(unsigned int asfactor[], int asf_nr, int group, int g_type, int pos,
                    double gmax, double *spmax)
{
        int j;
        char val[32];

        for (j = 0; j < asf_nr; j++) {
                /* Init autoscale factors */
                asfactor[j] = 1;
        }

        if (AUTOSCALE_ON(flags) && (group > 1) && gmax && (g_type == SVG_LINE_GRAPH)) {
                /* Autoscaling... */
                for (j = 0; (j < group) && (j < asf_nr); j++) {
                        if (!*(spmax + pos + j) || (*(spmax + pos + j) == gmax))
                                continue;

                        snprintf(val, 32, "%u", (unsigned int) (gmax / *(spmax + pos + j)));
                        if (strlen(val) > 0) {
                                asfactor[j] = pwr10(strlen(val) - 1);
                        }
                }
        }
}

/*
 ***************************************************************************
 * Display background grid (horizontal lines) and corresponding graduations.
 *
 * IN:
 * @ypos        Gap between two horizontal lines.
 * @yfactor     Scaling factor on Y axis.
 * @lmax        Max value for current view.
 * @dp          Number of decimal places for graduations.
 ***************************************************************************
 */
void display_hgrid(double ypos, double yfactor, double lmax, int dp)
{
        int j = 0;
        char stmp[32];

        do {
                /* Display horizontal lines (except on X axis) */
                if (j > 0) {
                        printf("<polyline points=\"0,%.2f %d,%.2f\" style=\"vector-effect: non-scaling-stroke; "
                               "stroke: #202020\" transform=\"scale(1,%f)\"/>\n",
                               ypos * j, SVG_G_XSIZE, ypos * j, yfactor);
                }

                /*
                 * Display graduations.
                 * Use same rounded value for graduation numbers as for grid lines
                 * to make sure they are properly aligned.
                 */
                sprintf(stmp, "%.2f", ypos * j);
                printf("<text x=\"0\" y=\"%ld\" style=\"fill: white; stroke: none; font-size: 12px; "
                       "text-anchor: end\">%.*f.</text>\n",
                       (long) (atof(stmp) * yfactor), dp, ypos * j);
                j++;
        }
        while ((ypos * j <= lmax) && (j < MAX_HLINES_NR));
}

/*
 ***************************************************************************
 * Display background grid (vertical lines) and corresponding graduations.
 *
 * IN:
 * @xpos        Gap between two vertical lines.
 * @xfactor     Scaling factor on X axis.
 * @v_gridnr    Default number of vertical lines to display. The actual
 *              number may vary between this value and 2 times this value.
 * @svg_p       SVG specific parameters (see draw_activity_graphs() function).
 ***************************************************************************
 */
void display_vgrid(long int xpos, double xfactor, int v_gridnr, struct svg_parm *svg_p)
{
        struct record_header stamp;
        struct tm rectime;
        char cur_time[TIMESTAMP_LEN];
        int j;

        stamp.ust_time = svg_p->ust_time_ref; /* Only ust_time field needs to be set. TRUE_TIME not allowed */

        /*
         * What really matters to know when we should stop drawing vertical lines
         * is the time end. v_gridnr is only informative and used to calculate
         * the gap between two lines.
         */
        for (j = 0; (j <= (2 * v_gridnr)) && (stamp.ust_time <= svg_p->ust_time_end); j++) {

                /* Display vertical lines */
                sa_get_record_timestamp_struct(flags, &stamp, &rectime, NULL);
                set_record_timestamp_string(flags, &stamp, NULL, cur_time, TIMESTAMP_LEN, &rectime);
                printf("<polyline points=\"%ld,0 %ld,%d\" style=\"vector-effect: non-scaling-stroke; "
                       "stroke: #202020\" transform=\"scale(%f,1)\"/>\n",
                       xpos * j, xpos * j, -SVG_G_YSIZE, xfactor);
                /*
                 * Display graduations.
                 * NB: We may have tm_min != 0 if we have more than 24H worth of data in one datafile.
                 * In this case, we should rather display the exact time instead of only the hour.
                 */
                if (DISPLAY_ONE_DAY(flags) && (rectime.tm_min == 0)) {
                        printf("<text x=\"%ld\" y=\"15\" style=\"fill: white; stroke: none; font-size: 14px; "
                               "text-anchor: start\">%2d:00</text>\n",
                               (long) (xpos * j * xfactor) - 15, rectime.tm_hour);
                }
                else {
                        printf("<text x=\"%ld\" y=\"10\" style=\"fill: white; stroke: none; font-size: 12px; "
                               "text-anchor: start\" transform=\"rotate(45,%ld,0)\">%s</text>\n",
                               (long) (xpos * j * xfactor), (long) (xpos * j * xfactor), cur_time);
                }
                stamp.ust_time += xpos;
        }

        if (!PRINT_LOCAL_TIME(flags)) {
                printf("<text x=\"-10\" y=\"30\" style=\"fill: yellow; stroke: none; font-size: 12px; "
                       "text-anchor: end\">UTC</text>\n");
        }
}

/*
 ***************************************************************************
 * Calculate the value on the Y axis between two horizontal lines that will
 * make the graph background grid.
 *
 * IN:
 * @lmax        Max value reached for this graph.
 *
 * OUT:
 * @dp          Number of decimal places for Y graduations.
 *
 * RETURNS:
 * Value between two horizontal lines.
 ***************************************************************************
 */
double ygrid(double lmax, int *dp)
{
        char val[32];
        int l;
        unsigned int e;
        long n = 0;

        *dp = 0;
        if (lmax == 0) {
                lmax = 1;
        }
        n = (long) (lmax / SVG_H_GRIDNR);
        if (!n) {
                *dp = 2;
                return (lmax / SVG_H_GRIDNR);
        }
        snprintf(val, 32, "%ld", n);
        val[31] = '\0';
        l = strlen(val);
        if (l < 2)
                return n;
        e = pwr10(l - 1);

        return ((double) (((long) (n / e)) * e));
}

/*
 ***************************************************************************
 * Calculate the value on the X axis between two vertical lines that will
 * make the graph background grid.
 *
 * IN:
 * @timestart   First data timestamp (X coordinate of the first data point).
 * @timeend     Last data timestamp (X coordinate of the last data point).
 * @v_gridnr    Number of vertical lines to display. Its value is normally
 *              SVG_V_GRIDNR, except when option "oneday" is used, in which
 *              case it is set to 12.
 *
 * RETURNS:
 * Value between two vertical lines.
 ***************************************************************************
 */
long int xgrid(unsigned long timestart, unsigned long timeend, int v_gridnr)
{
        if ((timeend - timestart) <= v_gridnr)
                return 1;
        else
                return ((timeend - timestart) / v_gridnr);
}

/*
 ***************************************************************************
 * Free global graphs structures.
 *
 * IN:
 * @out         Pointer on array of chars for each graph definition.
 * @outsize     Size of array of chars for each graph definition.
 * @spmin       Array containing min values for graphs.
 * @spmax       Array containing max values for graphs.
 ***************************************************************************
 */
void free_graphs(char **out, int *outsize, double *spmin, double *spmax)
{
        if (out) {
                free(out);
        }
        if (outsize) {
                free(outsize);
        }
        if (spmin) {
                free(spmin);
        }
        if (spmax) {
                free(spmax);
        }
}

/*
 ***************************************************************************
 * Skip current view where all graphs have only zero values. This function
 * is called when option "skipempty" has been used, or when "No data" have
 * been found for current view.
 *
 * IN:
 * @out         Pointer on array of chars for each graph definition.
 * @pos         Position of current view in the array of graphs definitions.
 * @group       Number of graphs in current view.
 *
 * OUT:
 * @pos         Position of next view in the array of graphs definitions.
 ***************************************************************************
 */
void skip_current_view(char **out, int *pos, int group)
{
        int j;
        char *out_p;

        for (j = 0; j < group; j++) {
                out_p = *(out + *pos + j);
                if (out_p) {
                        /* Even if not displayed, current graph data have to be freed */
                        free(out_p);
                }
        }
        *pos += group;
}

/*
 ***************************************************************************
 * Display all graphs for current activity.
 *
 * IN:
 * @g_nr        Number of views to display.
 * @g_type      Type of graph (SVG_LINE_GRAPH, SVG_BAR_GRAPH) for each view.
 * @title       Titles for each set of graphs.
 * @g_title     Titles for each graph.
 * @item_name   Item (network interface, etc.) name.
 * @group       Indicate how graphs are grouped together to make sets.
 * @spmin       Array containing min values for graphs.
 * @spmax       Array containing max values for graphs.
 * @out         Pointer on array of chars for each graph definition.
 * @outsize     Size of array of chars for each graph definition.
 * @svg_p       SVG specific parameters: Current views row number (.@graph_no),
 *              time for the first sample of stats (.@ust_time_first), and
 *              times used as start and end values on the X axis
 *              (.@ust_time_ref and .@ust_time_end).
 * @record_hdr  Pointer on record header of current stats sample.
 * @skip_void   Set to <> 0 if graphs with no data should be skipped.
 *              This is typicallly used to not display CPU offline on the
 *              whole period.
 * @id          Current activity id.
 * @xid         Current activity extra id number.
 *
 * RETURNS:
 * TRUE if at least one graph has been displayed.
 ***************************************************************************
 */
int draw_activity_graphs(int g_nr, int g_type[], char *title[], char *g_title[], char *item_name,
                         int group[], double *spmin, double *spmax, char **out, int *outsize,
                         struct svg_parm *svg_p, struct record_header *record_hdr, int skip_void,
                         unsigned int id, unsigned int xid)
{
        char *out_p;
        int i, j, dp, pos = 0, views_nr = 0, displayed = FALSE;
        int v_gridnr, xv, yv;
        unsigned int asfactor[16];
        long int xpos;
        double lmax, xfactor, yfactor, ypos, gmin, gmax;
        char val[32], cur_date[TIMESTAMP_LEN];
        struct tm rectime;

        /* For each view which is part of current activity */
        for (i = 0; i < g_nr; i++) {

                /* Get global min and max value for current view */
                get_global_extrema(pos, group[i], spmin, spmax, &gmin, &gmax);

                /* Don't display empty views if requested */
                if (SKIP_EMPTY_VIEWS(flags) && (gmax < 0.005)) {
                        skip_current_view(out, &pos, group[i]);
                        continue;
                }
                /* Skip void graphs */
                if (skip_void && ((*(spmin + pos) == DBL_MAX) || (*(spmax + pos) == -DBL_MIN)))
                        continue;

                if (!displayed) {
                        /* Translate to proper position for current activity */
                        printf("<g id=\"g%d-%d\" transform=\"translate(0,%d)\">\n",
                               id, xid,
                               SVG_H_YSIZE +
                               SVG_C_YSIZE * (DISPLAY_TOC(flags) ? svg_p->nr_act_dispd : 0) +
                               SVG_T_YSIZE * svg_p->graph_no);
                        displayed = TRUE;
                }

                /* Increment number of views actually displayed */
                views_nr++;

                /* Compute top left position of view */
                if (PACK_VIEWS(flags)) {
                        xv = (views_nr - 1) * SVG_T_XSIZE;
                        yv = 0;
                }
                else {
                        xv = 0;
                        yv = (views_nr - 1) * SVG_T_YSIZE;
                }

                /* Graph background */
                printf("<rect x=\"%d\" y=\"%d\" height=\"%d\" width=\"%d\"/>\n",
                       xv, yv, SVG_V_YSIZE, SVG_V_XSIZE);

                /* Graph title */
                printf("<text x=\"%d\" y=\"%d\" style=\"fill: yellow; stroke: none\">%s",
                       xv, 20 + yv, title[i]);
                if (item_name) {
                        printf(" [%s]", item_name);
                }
                printf("\n");
                printf("<tspan x=\"%d\" y=\"%d\" style=\"fill: yellow; stroke: none; font-size: 12px\">"
                       "(Min, Max values)</tspan>\n</text>\n",
                       xv + 5 + SVG_M_XSIZE + SVG_G_XSIZE, yv + 25);

                /*
                 * At least two samples are needed.
                 * And a min and max value should have been found.
                 */
                if ((record_hdr->ust_time == svg_p->ust_time_first) ||
                    (*(spmin + pos) == DBL_MAX) || (*(spmax + pos) == -DBL_MIN)) {
                        /* No data found */
                        printf("<text x=\"%d\" y=\"%d\" style=\"fill: red; stroke: none\">No data</text>\n",
                               xv, yv + SVG_M_YSIZE);
                        skip_current_view(out, &pos, group[i]);
                        continue;
                }

                /* X and Y axis */
                printf("<polyline points=\"%d,%d %d,%d %d,%d\" stroke=\"white\" stroke-width=\"2\"/>\n",
                       xv + SVG_M_XSIZE, yv + SVG_M_YSIZE,
                       xv + SVG_M_XSIZE, yv + SVG_M_YSIZE + SVG_G_YSIZE,
                       xv + SVG_M_XSIZE + SVG_G_XSIZE, yv + SVG_M_YSIZE + SVG_G_YSIZE);

                /* Autoscaling graphs if needed */
                gr_autoscaling(asfactor, 16, group[i], g_type[i], pos, gmax, spmax);

                /* Caption */
                for (j = 0; j < group[i]; j++) {
                        /* Set dp to TRUE (1) if current metric is based on integer values */
                        dp = (g_title[pos + j][0] == '~');
                        snprintf(val, 32, "x%u ", asfactor[j]);
                        printf("<text x=\"%d\" y=\"%d\" style=\"fill: #%06x; stroke: none; font-size: 12px\">"
                               "%s %s(%.*f, %.*f)</text>\n",
                               xv + 5 + SVG_M_XSIZE + SVG_G_XSIZE, yv + SVG_M_YSIZE + j * 15,
                               svg_colors[(pos + j) & SVG_COLORS_IDX_MASK], g_title[pos + j] + dp,
                               asfactor[j] == 1 ? "" : val,
                               !dp * 2, *(spmin + pos + j) * asfactor[j],
                               !dp * 2, *(spmax + pos + j) * asfactor[j]);
                }

                if (DISPLAY_INFO(flags)) {
                        /* Display additional info (hostname, date) */
                        printf("<text x=\"%d\" y=\"%d\" "
                               "style=\"fill: yellow; text-anchor: end; stroke: none; font-size: 14px\">"
                               "%s\n",
                               xv + SVG_V_XSIZE - 5, yv + SVG_M_YSIZE + SVG_G_YSIZE,
                               svg_p->file_hdr->sa_nodename);

                        /* Get report date */
                        set_report_date(localtime_r((const time_t *) &(svg_p->file_hdr->sa_ust_time), &rectime),
                                        cur_date, sizeof(cur_date));
                        printf("<tspan x=\"%d\" y=\"%d\" "
                               "style=\"fill: yellow; text-anchor: end; stroke: none; font-size: 14px\">"
                               "%s</tspan>\n</text>\n",
                               xv + SVG_V_XSIZE - 5, yv + SVG_M_YSIZE + SVG_G_YSIZE + 14,
                               cur_date);
                }

                /* Translate to proper position for current graph within current activity */
                printf("<g transform=\"translate(%d,%d)\">\n",
                       xv + SVG_M_XSIZE, yv + SVG_M_YSIZE + SVG_G_YSIZE);

                /* Grid */
                if (g_type[i] == SVG_LINE_GRAPH) {
                        /* For line graphs */
                        if (!gmax) {
                                /* If all values are zero then set current max value to 1 */
                                lmax = 1.0;
                        }
                        else {
                                lmax = gmax;
                        }
                        /* Max value cannot be too small, else Y graduations will be meaningless */
                        if (lmax < SVG_H_GRIDNR * 0.01) {
                                lmax = SVG_H_GRIDNR * 0.01;
                        }
                        ypos = ygrid(lmax, &dp);
                }
                else {
                        /* For bar graphs (used for %values) */
                        ypos = 25.0;    /* Draw lines at 25%, 50%, 75% and 100% */
                        dp = 0;         /* No decimals */

                        /* Max should be always 100% except for percentage values greater than 100% */
                        if (gmax > 100.0) {
                                lmax = gmax;
                        }
                        else {
                                lmax = 100.0;
                        }
                }
                yfactor = (double) -SVG_G_YSIZE / lmax;

                /* Display horizontal lines and graduations */
                display_hgrid(ypos, yfactor, lmax, dp);

                /* Set number of vertical lines to 12 when option "oneday" is used */
                v_gridnr = DISPLAY_ONE_DAY(flags) ? 12 : SVG_V_GRIDNR;

                xpos = xgrid(svg_p->ust_time_ref, svg_p->ust_time_end, v_gridnr);
                xfactor = (double) SVG_G_XSIZE / (svg_p->ust_time_end - svg_p->ust_time_ref);

                /* Display vertical lines and graduations */
                display_vgrid(xpos, xfactor, v_gridnr, svg_p);

                /* Draw current graphs set */
                for (j = 0; j < group[i]; j++) {
                        out_p = *(out + pos + j);
                        if (g_type[i] == SVG_LINE_GRAPH) {
                                /* Line graphs */
                                printf("<path d=\"%s\" "
                                       "style=\"vector-effect: non-scaling-stroke; "
                                       "stroke: #%06x; stroke-width: 1; fill-opacity: 0\" "
                                       "transform=\"scale(%f,%f)\"/>\n",
                                       out_p,
                                       svg_colors[(pos + j) & SVG_COLORS_IDX_MASK],
                                       xfactor,
                                       yfactor * asfactor[j]);
                        }
                        else if (*out_p) {      /* Ignore flat bars */
                                /* Bar graphs */
                                printf("<g style=\"fill: #%06x; stroke: none\" transform=\"scale(%f,%f)\">\n",
                                       svg_colors[(pos + j) & SVG_COLORS_IDX_MASK], xfactor, yfactor);
                                printf("%s\n", out_p);
                                printf("</g>\n");
                        }
                        free(out_p);
                }
                printf("</g>\n");
                pos += group[i];
        }
        if (displayed) {
                printf("</g>\n");

                /* For next row of views */
                (svg_p->graph_no) += PACK_VIEWS(flags) ? 1 : views_nr;
        }

        return displayed;
}

/*
 ***************************************************************************
 * Display CPU statistics in SVG.
 *
 * IN:
 * @a           Activity structure with statistics.
 * @curr        Index in array for current sample statistics.
 * @action      Action expected from current function.
 * @svg_p       SVG specific parameters: Current graph number (.@graph_no),
 *              flag indicating that a restart record has been previously
 *              found (.@restart), and time used for the X axis origin
 *              (@ust_time_ref).
 * @itv         Interval of time in 1/100th of a second (only with F_MAIN action).
 *              Unused here.
 * @record_hdr  Pointer on record header of current stats sample.
 ***************************************************************************
 */
__print_funct_t svg_print_cpu_stats(struct activity *a, int curr, int action, struct svg_parm *svg_p,
                                    unsigned long long itv, struct record_header *record_hdr)
{
        struct stats_cpu *scc, *scp;
        unsigned long long deltot_jiffies = 1;
        unsigned char offline_cpu_bitmap[BITMAP_SIZE(NR_CPUS)] = {0};
        int group1[] = {5};
        int group2[] = {9};
        int g_type[] = {SVG_BAR_GRAPH};
        char *title[] = {"CPU utilization"};
        char *g_title1[] = {"%user", "%nice", "%system", "%iowait", "%steal", "%idle"};
        char *g_title2[] = {"%usr", "%nice", "%sys", "%iowait", "%steal", "%irq", "%soft", "%guest", "%gnice", "%idle"};
        static double *spmin, *spmax;
        static char **out;
        static int *outsize;
        char item_name[16];
        double offset, val;
        int i, j, k, pos;

        if (action & F_BEGIN) {
                /*
                 * Allocate arrays that will contain the graphs data
                 * and the min/max values.
                 */
                out = allocate_graph_lines(10 * a->item_list_sz, &outsize, &spmin, &spmax);
        }

        if (action & F_MAIN) {

                /* @nr[curr] cannot normally be greater than @nr_ini */
                if (a->nr[curr] > a->nr_ini) {
                        a->nr_ini = a->nr[curr];
                }

                /*
                 * Compute CPU "all" as sum of all individual CPU (on SMP machines)
                 * and look for offline CPU.
                 */
                if (a->nr_ini > 1) {
                        deltot_jiffies = get_global_cpu_statistics(a, !curr, curr,
                                                                   flags, offline_cpu_bitmap);
                }

                /* For each CPU */
                for (i = 0; (i < a->nr_ini) && (i < a->bitmap->b_size + 1); i++) {

                        /* Should current CPU (including CPU "all") be displayed? */
                        if (!(a->bitmap->b_array[i >> 3] & (1 << (i & 0x07))) ||
                            offline_cpu_bitmap[i >> 3] & (1 << (i & 0x07)))
                                /* Don't display CPU */
                                continue;

                        scc = (struct stats_cpu *) ((char *) a->buf[curr]  + i * a->msize);
                        scp = (struct stats_cpu *) ((char *) a->buf[!curr] + i * a->msize);

                        pos = i * 10;
                        offset = 0.0;

                        if (i == 0) {
                                /* This is CPU "all" */
                                if (a->nr_ini == 1) {
                                        /*
                                         * This is a UP machine. In this case
                                         * interval has still not been calculated.
                                         */
                                        deltot_jiffies = get_per_cpu_interval(scc, scp);
                                }
                                if (!deltot_jiffies) {
                                        /* CPU "all" cannot be tickless */
                                        deltot_jiffies = 1;
                                }
                        }
                        else {
                                /*
                                 * Recalculate interval for current proc.
                                 * If result is 0 then current CPU is a tickless one.
                                 */
                                deltot_jiffies = get_per_cpu_interval(scc, scp);

                                if (!deltot_jiffies) {  /* Current CPU is tickless */

                                        val = 100.0;    /* Tickless CPU: %idle = 100% */

                                        if (DISPLAY_CPU_DEF(a->opt_flags)) {
                                                j  = 5; /* -u */
                                        }
                                        else {  /* DISPLAY_CPU_ALL(a->opt_flags) */
                                                j = 9;  /* -u ALL */
                                        }

                                        /* Check min/max values for %user, etc. */
                                        for (k = 0; k < j; k++) {
                                                if (0.0 < *(spmin + pos + k)) {
                                                        *(spmin + pos + k) = 0.0;
                                                }
                                                if (0.0 > *(spmax + pos + k)) {
                                                        *(spmax + pos + k) = 0.0;
                                                }
                                        }

                                        /* %idle */
                                        cpuappend(record_hdr->ust_time - svg_p->ust_time_ref,
                                                  &offset, val,
                                                  out + pos + j, outsize + pos + j, svg_p->dt,
                                                  spmin + pos + j, spmax + pos + j);
                                        continue;
                                }
                        }

                        if (DISPLAY_CPU_DEF(a->opt_flags)) {
                                /* %user */
                                cpuappend(record_hdr->ust_time - svg_p->ust_time_ref,
                                          &offset, ll_sp_value(scp->cpu_user, scc->cpu_user, deltot_jiffies),
                                          out + pos, outsize + pos, svg_p->dt,
                                          spmin + pos, spmax + pos);
                        }
                        else {
                                /* %usr */
                                cpuappend(record_hdr->ust_time - svg_p->ust_time_ref,
                                          &offset,
                                          (scc->cpu_user - scc->cpu_guest) < (scp->cpu_user - scp->cpu_guest) ?
                                           0.0 :
                                           ll_sp_value(scp->cpu_user - scp->cpu_guest,
                                                       scc->cpu_user - scc->cpu_guest, deltot_jiffies),
                                          out + pos, outsize + pos, svg_p->dt,
                                          spmin + pos, spmax + pos);
                        }

                        if (DISPLAY_CPU_DEF(a->opt_flags)) {
                                /* %nice */
                                cpuappend(record_hdr->ust_time - svg_p->ust_time_ref,
                                          &offset, ll_sp_value(scp->cpu_nice, scc->cpu_nice, deltot_jiffies),
                                          out + pos + 1, outsize + pos + 1, svg_p->dt,
                                          spmin + pos + 1, spmax + pos + 1);
                        }
                        else {
                                /* %nice */
                                cpuappend(record_hdr->ust_time - svg_p->ust_time_ref,
                                          &offset,
                                          (scc->cpu_nice - scc->cpu_guest_nice) < (scp->cpu_nice - scp->cpu_guest_nice) ?
                                           0.0 :
                                           ll_sp_value(scp->cpu_nice - scp->cpu_guest_nice,
                                                       scc->cpu_nice - scc->cpu_guest_nice, deltot_jiffies),
                                          out + pos + 1, outsize + pos + 1, svg_p->dt,
                                          spmin + pos + 1, spmax + pos + 1);
                        }

                        if (DISPLAY_CPU_DEF(a->opt_flags)) {
                                /* %system */
                                cpuappend(record_hdr->ust_time - svg_p->ust_time_ref,
                                          &offset,
                                          ll_sp_value(scp->cpu_sys + scp->cpu_hardirq + scp->cpu_softirq,
                                                      scc->cpu_sys + scc->cpu_hardirq + scc->cpu_softirq,
                                                      deltot_jiffies),
                                          out + pos + 2, outsize + pos + 2, svg_p->dt,
                                          spmin + pos + 2, spmax + pos + 2);
                        }
                        else {
                                /* %sys */
                                cpuappend(record_hdr->ust_time - svg_p->ust_time_ref,
                                          &offset, ll_sp_value(scp->cpu_sys, scc->cpu_sys, deltot_jiffies),
                                          out + pos + 2, outsize + pos + 2, svg_p->dt,
                                          spmin + pos + 2, spmax + pos + 2);
                        }

                        /* %iowait */
                        cpuappend(record_hdr->ust_time - svg_p->ust_time_ref,
                                  &offset, ll_sp_value(scp->cpu_iowait, scc->cpu_iowait, deltot_jiffies),
                                  out + pos + 3, outsize + pos + 3, svg_p->dt,
                                  spmin + pos + 3, spmax + pos + 3);
                        /* %steal */
                        cpuappend(record_hdr->ust_time - svg_p->ust_time_ref,
                                  &offset, ll_sp_value(scp->cpu_steal, scc->cpu_steal, deltot_jiffies),
                                  out + pos + 4, outsize + pos + 4, svg_p->dt,
                                  spmin + pos + 4, spmax + pos + 4);

                        if (DISPLAY_CPU_ALL(a->opt_flags)) {
                                /* %irq */
                                cpuappend(record_hdr->ust_time - svg_p->ust_time_ref,
                                          &offset, ll_sp_value(scp->cpu_hardirq, scc->cpu_hardirq, deltot_jiffies),
                                          out + pos + 5, outsize + pos + 5, svg_p->dt,
                                          spmin + pos + 5, spmax + pos + 5);
                                /* %soft */
                                cpuappend(record_hdr->ust_time - svg_p->ust_time_ref,
                                          &offset, ll_sp_value(scp->cpu_softirq, scc->cpu_softirq, deltot_jiffies),
                                          out + pos + 6, outsize + pos + 6, svg_p->dt,
                                          spmin + pos + 6, spmax + pos + 6);
                                /* %guest */
                                cpuappend(record_hdr->ust_time - svg_p->ust_time_ref,
                                          &offset, ll_sp_value(scp->cpu_guest, scc->cpu_guest, deltot_jiffies),
                                          out + pos + 7, outsize + pos + 7, svg_p->dt,
                                          spmin + pos + 7, spmax + pos + 7);
                                /* %gnice */
                                cpuappend(record_hdr->ust_time - svg_p->ust_time_ref,
                                          &offset, ll_sp_value(scp->cpu_guest_nice, scc->cpu_guest_nice, deltot_jiffies),
                                          out + pos + 8, outsize + pos + 8, svg_p->dt,
                                          spmin + pos + 8, spmax + pos + 8);

                                j = 9;
                        }
                        else {
                                j = 5;
                        }

                        /* %idle */
                        cpuappend(record_hdr->ust_time - svg_p->ust_time_ref,
                                  &offset,
                                  (scc->cpu_idle < scp->cpu_idle ? 0.0 :
                                   ll_sp_value(scp->cpu_idle, scc->cpu_idle, deltot_jiffies)),
                                  out + pos + j, outsize + pos + j, svg_p->dt,
                                  spmin + pos + j, spmax + pos + j);
                }
        }

        if (action & F_END) {
                int xid = 0, displayed;

                if (DISPLAY_IDLE(flags)) {
                        /* Include additional %idle field */
                        group1[0]++;
                        group2[0]++;
                }

                for (i = 0; (i < a->item_list_sz) && (i < a->bitmap->b_size + 1); i++) {

                        /* Should current CPU (including CPU "all") be displayed? */
                        if (!(a->bitmap->b_array[i >> 3] & (1 << (i & 0x07))))
                                /* No */
                                continue;

                        pos = i * 10;
                        if (!i) {
                                /* This is CPU "all" */
                                strcpy(item_name, "all");
                        }
                        else {
                                sprintf(item_name, "%d", i - 1);
                        }

                        if (DISPLAY_CPU_DEF(a->opt_flags)) {
                                displayed = draw_activity_graphs(a->g_nr, g_type,
                                                                 title, g_title1, item_name, group1,
                                                                 spmin + pos, spmax + pos, out + pos, outsize + pos,
                                                                 svg_p, record_hdr, i, a->id, xid);
                        }
                        else {
                                displayed = draw_activity_graphs(a->g_nr, g_type,
                                                                 title, g_title2, item_name, group2,
                                                                 spmin + pos, spmax + pos, out + pos, outsize + pos,
                                                                 svg_p, record_hdr, i, a->id, xid);
                        }
                        if (displayed) {
                                xid++;
                        }
                }

                /* Free remaining structures */
                free_graphs(out, outsize, spmin, spmax);
        }
}

/*
 ***************************************************************************
 * Display task creation and context switch statistics in SVG.
 *
 * IN:
 * @a           Activity structure with statistics.
 * @curr        Index in array for current sample statistics.
 * @action      Action expected from current function.
 * @svg_p       SVG specific parameters: Current graph number (.@graph_no),
 *              flag indicating that a restart record has been previously
 *              found (.@restart) and time used for the X axis origin
 *              (@ust_time_ref).
 * @itv         Interval of time in 1/100th of a second (only with F_MAIN action).
 * @record_hdr  Pointer on record header of current stats sample.
 ***************************************************************************
 */
__print_funct_t svg_print_pcsw_stats(struct activity *a, int curr, int action, struct svg_parm *svg_p,
                                     unsigned long long itv, struct record_header *record_hdr)
{
        struct stats_pcsw
                *spc = (struct stats_pcsw *) a->buf[curr],
                *spp = (struct stats_pcsw *) a->buf[!curr];
        int group[] = {1, 1};
        int g_fields[] = {1, 0};
        int g_type[] = {SVG_LINE_GRAPH, SVG_LINE_GRAPH};
        char *title[] = {"Task creation", "Switching activity"};
        char *g_title[] = {"proc/s",
                           "cswch/s"};
        static double *spmin, *spmax;
        static char **out;
        static int *outsize;

        if (action & F_BEGIN) {
                /*
                 * Allocate arrays that will contain the graphs data
                 * and the min/max values.
                 */
                out = allocate_graph_lines(2, &outsize, &spmin, &spmax);
        }

        if (action & F_MAIN) {
                /* Check for min/max values */
                save_extrema(a->gtypes_nr, (void *) a->buf[curr], (void *) a->buf[!curr],
                             itv, spmin, spmax, g_fields);
                /* proc/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(spp->processes, spc->processes, itv),
                         out, outsize, svg_p->restart);
                /* cswch/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(spp->context_switch, spc->context_switch, itv),
                         out + 1, outsize + 1, svg_p->restart);
        }

        if (action & F_END) {
                draw_activity_graphs(a->g_nr, g_type, title, g_title, NULL, group,
                                     spmin, spmax, out, outsize, svg_p, record_hdr, FALSE, a->id, 0);

                /* Free remaining structures */
                free_graphs(out, outsize, spmin, spmax);
        }
}

/*
 ***************************************************************************
 * Display swap statistics in SVG.
 *
 * IN:
 * @a           Activity structure with statistics.
 * @curr        Index in array for current sample statistics.
 * @action      Action expected from current function.
 * @svg_p       SVG specific parameters: Current graph number (.@graph_no),
 *              flag indicating that a restart record has been previously
 *              found (.@restart) and time used for the X axis origin
 *              (@ust_time_ref).
 * @itv         Interval of time in 1/100th of a second (only with F_MAIN action).
 * @record_hdr  Pointer on record header of current stats sample.
 ***************************************************************************
 */
__print_funct_t svg_print_swap_stats(struct activity *a, int curr, int action, struct svg_parm *svg_p,
                                     unsigned long long itv, struct record_header *record_hdr)
{
        struct stats_swap
                *ssc = (struct stats_swap *) a->buf[curr],
                *ssp = (struct stats_swap *) a->buf[!curr];
        int group[] = {2};
        int g_type[] = {SVG_LINE_GRAPH};
        char *title[] = {"Swap activity"};
        char *g_title[] = {"pswpin/s", "pswpout/s" };
        int g_fields[] = {0, 1};
        static double *spmin, *spmax;
        static char **out;
        static int *outsize;

        if (action & F_BEGIN) {
                /*
                 * Allocate arrays that will contain the graphs data
                 * and the min/max values.
                 */
                out = allocate_graph_lines(2, &outsize, &spmin, &spmax);
        }

        if (action & F_MAIN) {
                /* Check for min/max values */
                save_extrema(a->gtypes_nr, (void *) a->buf[curr], (void *) a->buf[!curr],
                             itv, spmin, spmax, g_fields);
                /* pswpin/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(ssp->pswpin, ssc->pswpin, itv),
                         out, outsize, svg_p->restart);
                /* pswpout/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(ssp->pswpout, ssc->pswpout, itv),
                         out + 1, outsize + 1, svg_p->restart);
        }

        if (action & F_END) {
                draw_activity_graphs(a->g_nr, g_type, title, g_title, NULL, group,
                                     spmin, spmax, out, outsize, svg_p, record_hdr, FALSE, a->id, 0);

                /* Free remaining structures */
                free_graphs(out, outsize, spmin, spmax);
        }
}

/*
 ***************************************************************************
 * Display paging statistics in SVG.
 *
 * IN:
 * @a           Activity structure with statistics.
 * @curr        Index in array for current sample statistics.
 * @action      Action expected from current function.
 * @svg_p       SVG specific parameters: Current graph number (.@graph_no),
 *              flag indicating that a restart record has been previously
 *              found (.@restart) and time used for the X axis origin
 *              (@ust_time_ref).
 * @itv         Interval of time in 1/100th of a second (only with F_MAIN action).
 * @record_hdr  Pointer on record header of current stats sample.
 ***************************************************************************
 */
__print_funct_t svg_print_paging_stats(struct activity *a, int curr, int action, struct svg_parm *svg_p,
                                       unsigned long long itv, struct record_header *record_hdr)
{
        struct stats_paging
                *spc = (struct stats_paging *) a->buf[curr],
                *spp = (struct stats_paging *) a->buf[!curr];
        int group[] = {2, 2, 4};
        int g_type[] = {SVG_LINE_GRAPH, SVG_LINE_GRAPH, SVG_LINE_GRAPH};
        char *title[] = {"Paging activity (1)", "Paging activity (2)", "Paging activity (3)"};
        char *g_title[] = {"pgpgin/s", "pgpgout/s",
                           "fault/s", "majflt/s",
                           "pgfree/s", "pgscank/s", "pgscand/s", "pgsteal/s"};
        int g_fields[] = {0, 1, 2, 3, 4, 5, 6, 7};
        static double *spmin, *spmax;
        static char **out;
        static int *outsize;

        if (action & F_BEGIN) {
                /*
                 * Allocate arrays that will contain the graphs data
                 * and the min/max values.
                 */
                out = allocate_graph_lines(8, &outsize, &spmin, &spmax);
        }

        if (action & F_MAIN) {
                /* Check for min/max values */
                save_extrema(a->gtypes_nr, (void *) a->buf[curr], (void *) a->buf[!curr],
                             itv, spmin, spmax, g_fields);
                /* pgpgin/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(spp->pgpgin, spc->pgpgin, itv),
                         out, outsize, svg_p->restart);
                /* pgpgout/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(spp->pgpgout, spc->pgpgout, itv),
                         out + 1, outsize + 1, svg_p->restart);
                /* fault/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(spp->pgfault, spc->pgfault, itv),
                         out + 2, outsize + 2, svg_p->restart);
                /* majflt/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(spp->pgmajfault, spc->pgmajfault, itv),
                         out + 3, outsize + 3, svg_p->restart);
                /* pgfree/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(spp->pgfree, spc->pgfree, itv),
                         out + 4, outsize + 4, svg_p->restart);
                /* pgscank/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(spp->pgscan_kswapd, spc->pgscan_kswapd, itv),
                         out + 5, outsize + 5, svg_p->restart);
                /* pgscand/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(spp->pgscan_direct, spc->pgscan_direct, itv),
                         out + 6, outsize + 6, svg_p->restart);
                /* pgsteal/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(spp->pgsteal, spc->pgsteal, itv),
                         out + 7, outsize + 7, svg_p->restart);
        }

        if (action & F_END) {
                draw_activity_graphs(a->g_nr, g_type, title, g_title, NULL, group,
                                     spmin, spmax, out, outsize, svg_p, record_hdr, FALSE, a->id, 0);

                /* Free remaining structures */
                free_graphs(out, outsize, spmin, spmax);
        }
}

/*
 ***************************************************************************
 * Display I/O and transfer rate statistics in SVG.
 *
 * IN:
 * @a           Activity structure with statistics.
 * @curr        Index in array for current sample statistics.
 * @action      Action expected from current function.
 * @svg_p       SVG specific parameters: Current graph number (.@graph_no),
 *              flag indicating that a restart record has been previously
 *              found (.@restart) and time used for the X axis origin
 *              (@ust_time_ref).
 * @itv         Interval of time in 1/100th of a second (only with F_MAIN action).
 * @record_hdr  Pointer on record header of current stats sample.
 ***************************************************************************
 */
__print_funct_t svg_print_io_stats(struct activity *a, int curr, int action, struct svg_parm *svg_p,
                                   unsigned long long itv, struct record_header *record_hdr)
{
        struct stats_io
                *sic = (struct stats_io *) a->buf[curr],
                *sip = (struct stats_io *) a->buf[!curr];
        int group[] = {3, 2};
        int g_type[] = {SVG_LINE_GRAPH, SVG_LINE_GRAPH};
        char *title[] = {"I/O and transfer rate statistics (1)", "I/O and transfer rate statistics (2)"};
        char *g_title[] = {"tps", "rtps", "wtps",
                           "bread/s", "bwrtn/s"};
        int g_fields[] = {0, 1, 2, 3, 4};
        static double *spmin, *spmax;
        static char **out;
        static int *outsize;

        if (action & F_BEGIN) {
                /*
                 * Allocate arrays that will contain the graphs data
                 * and the min/max values.
                 */
                out = allocate_graph_lines(5, &outsize, &spmin, &spmax);
        }

        if (action & F_MAIN) {
                /* Check for min/max values */
                save_extrema(a->gtypes_nr, (void *) a->buf[curr], (void *) a->buf[!curr],
                             itv, spmin, spmax, g_fields);

                /*
                 * If we get negative values, this is probably because
                 * one or more devices/filesystems have been unmounted.
                 * We display 0.0 in this case though we should rather tell
                 * the user that the value cannot be calculated here.
                 */
                /* tps */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         sic->dk_drive < sip->dk_drive ? 0.0 :
                         S_VALUE(sip->dk_drive, sic->dk_drive, itv),
                         out, outsize, svg_p->restart);
                /* rtps */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         sic->dk_drive_rio < sip->dk_drive_rio ? 0.0 :
                         S_VALUE(sip->dk_drive_rio, sic->dk_drive_rio, itv),
                         out + 1, outsize + 1, svg_p->restart);
                /* wtps */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         sic->dk_drive_wio < sip->dk_drive_wio ? 0.0 :
                         S_VALUE(sip->dk_drive_wio, sic->dk_drive_wio, itv),
                         out + 2, outsize + 2, svg_p->restart);
                /* bread/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         sic->dk_drive_rblk < sip->dk_drive_rblk ? 0.0 :
                         S_VALUE(sip->dk_drive_rblk, sic->dk_drive_rblk, itv),
                         out + 3, outsize + 3, svg_p->restart);
                /* bwrtn/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         sic->dk_drive_wblk < sip->dk_drive_wblk ? 0.0 :
                         S_VALUE(sip->dk_drive_wblk, sic->dk_drive_wblk, itv),
                         out + 4, outsize + 4, svg_p->restart);
        }

        if (action & F_END) {
                draw_activity_graphs(a->g_nr, g_type, title, g_title, NULL, group,
                                     spmin, spmax, out, outsize, svg_p, record_hdr, FALSE, a->id, 0);

                /* Free remaining structures */
                free_graphs(out, outsize, spmin, spmax);
        }
}

/*
 ***************************************************************************
 * Display memory statistics in SVG.
 *
 * IN:
 * @a           Activity structure with statistics.
 * @curr        Index in array for current sample statistics.
 * @action      Action expected from current function.
 * @svg_p       SVG specific parameters: Current graph number (.@graph_no),
 *              flag indicating that a restart record has been previously
 *              found (.@restart) and time used for the X axis origin
 *              (@ust_time_ref).
 * @itv         Interval of time in 1/100th of a second (only with F_MAIN action).
 * @record_hdr  Pointer on record header of current stats sample.
 ***************************************************************************
 */
__print_funct_t svg_print_memory_stats(struct activity *a, int curr, int action, struct svg_parm *svg_p,
                                       unsigned long long itv, struct record_header *record_hdr)
{
        struct stats_memory
                *smc = (struct stats_memory *) a->buf[curr];
        int group1[] = {3, 1, 3, 1, 3, 5};
        int g_type1[] = {SVG_LINE_GRAPH, SVG_BAR_GRAPH, SVG_LINE_GRAPH,
                         SVG_BAR_GRAPH, SVG_LINE_GRAPH, SVG_LINE_GRAPH};
        int group2[] = {3, 1, 1};
        int g_type2[] = {SVG_LINE_GRAPH, SVG_BAR_GRAPH, SVG_BAR_GRAPH};
        char *title1[] = {"Memory utilization (1)", "Memory utilization (2)",
                          "Memory utilization (3)", "Memory utilization (4)",
                          "Memory utilization (5)", "Memory utilization (6)"};
        char *title2[] = {"Swap utilization (1)", "Swap utilization (2)",
                          "Swap utilization (3)"};
        char *g_title1[] = {"MBmemfree", "MBavail", "MBmemused", "%memused", "MBbuffers",
                            "MBcached", "MBcommit", "%commit", "MBactive", "MBinact",
                            "MBdirty", "MBanonpg", "MBslab", "MBkstack", "MBpgtbl",
                            "MBvmused"};
        char *g_title2[] = {"MBswpfree", "MBswpused", "MBswpcad", "%swpused",
                            "%swpcad"};
        int g_fields[] = {0, 4, 5, 21, 16, 22, 18, 6, 8, 9, 10, 11, 12, 13, 14, 15, 1};
        static double *spmin, *spmax;
        static char **out;
        static int *outsize;
        static int xid = 0;
        double tval;
        int i;
        unsigned long long nousedmem;

        if (action & F_BEGIN) {
                /*
                 * Allocate arrays that will contain the graphs data
                 * and the min/max values.
                 */
                out = allocate_graph_lines(23, &outsize, &spmin, &spmax);
        }

        if (action & F_MAIN) {
                /* Check for min/max values */
                save_extrema(a->gtypes_nr, (void *) a->buf[curr], NULL,
                             itv, spmin, spmax, g_fields);
                /* Compute %memused min/max values */
                nousedmem = smc->frmkb + smc->bufkb + smc->camkb + smc->slabkb;
                if (nousedmem > smc->tlmkb) {
                        nousedmem = smc->tlmkb;
                }
                tval = smc->tlmkb ? SP_VALUE(nousedmem, smc->tlmkb, smc->tlmkb) : 0.0;
                if (tval > *(spmax + 3)) {
                        *(spmax + 3) = tval;
                }
                if (tval < *(spmin + 3)) {
                        *(spmin + 3) = tval;
                }
                /* Compute %commit min/max values */
                tval = (smc->tlmkb + smc->tlskb) ?
                       SP_VALUE(0, smc->comkb, smc->tlmkb + smc->tlskb) : 0.0;
                if (tval > *(spmax + 7)) {
                        *(spmax + 7) = tval;
                }
                if (tval < *(spmin + 7)) {
                        *(spmin + 7) = tval;
                }
                /* Compute %swpused min/max values */
                tval = smc->tlskb ?
                       SP_VALUE(smc->frskb, smc->tlskb, smc->tlskb) : 0.0;
                if (tval > *(spmax + 19)) {
                        *(spmax + 19) = tval;
                }
                if (tval < *(spmin + 19)) {
                        *(spmin + 19) = tval;
                }
                /* Compute %swpcad min/max values */
                tval = (smc->tlskb - smc->frskb) ?
                       SP_VALUE(0, smc->caskb, smc->tlskb - smc->frskb) : 0.0;
                if (tval > *(spmax + 20)) {
                        *(spmax + 20) = tval;
                }
                if (tval < *(spmin + 20)) {
                        *(spmin + 20) = tval;
                }
                /* Compute memused min/max values in MB */
                tval = ((double) (smc->tlmkb - nousedmem)) / 1024;
                if (tval > *(spmax + 2)) {
                        *(spmax + 2) = tval;
                }
                if (tval < *(spmin + 2)) {
                        *(spmin + 2) = tval;
                }
                /* Compute swpused min/max values in MB */
                tval = ((double) (smc->tlskb - smc->frskb)) / 1024;
                if (tval > *(spmax + 17)) {
                        *(spmax + 17) = tval;
                }
                if (tval < *(spmin + 17)) {
                        *(spmin + 17) = tval;
                }

                /* MBmemfree */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         ((double) smc->frmkb) / 1024,
                         out, outsize, svg_p->restart);
                /* MBmemused */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         ((double) (smc->tlmkb - nousedmem)) / 1024,
                         out + 2, outsize + 2, svg_p->restart);
                /* MBavail */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         ((double) smc->availablekb) / 1024,
                         out + 1, outsize + 1, svg_p->restart);
                /* MBbuffers */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         ((double) smc->bufkb) / 1024,
                         out + 4, outsize + 4, svg_p->restart);
                /* MBcached */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         ((double) smc->camkb) / 1024,
                          out + 5, outsize + 5, svg_p->restart);
                /* MBswpfree */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         ((double) smc->frskb) / 1024,
                         out + 16, outsize + 16, svg_p->restart);
                /* MBswpused */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         ((double) (smc->tlskb - smc->frskb)) / 1024,
                         out + 17, outsize + 17, svg_p->restart);
                /* MBswpcad */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         ((double) smc->caskb) / 1024,
                         out + 18, outsize + 18, svg_p->restart);
                /* MBcommit */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         ((double) smc->comkb) / 1024,
                         out + 6, outsize + 6, svg_p->restart);
                /* MBactive */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         ((double) smc->activekb) / 1024,
                         out + 8, outsize + 8, svg_p->restart);
                /* MBinact */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         ((double) smc->inactkb) / 1024,
                         out + 9, outsize + 9, svg_p->restart);
                /* MBdirty */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         ((double) smc->dirtykb) / 1024,
                         out + 10, outsize + 10, svg_p->restart);
                /* MBanonpg */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         ((double) smc->anonpgkb) / 1024,
                         out + 11, outsize + 11, svg_p->restart);
                /* MBslab */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         ((double) smc->slabkb) / 1024,
                         out + 12, outsize + 12, svg_p->restart);
                /* MBkstack */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         ((double) smc->kstackkb) / 1024,
                         out + 13, outsize + 13, svg_p->restart);
                /* MBpgtbl */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         ((double) smc->pgtblkb) / 1024,
                         out + 14, outsize + 14, svg_p->restart);
                /* MBvmused */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         ((double) smc->vmusedkb) / 1024,
                         out + 15, outsize + 15, svg_p->restart);
                /* %memused */
                brappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         0.0,
                         smc->tlmkb ?
                         SP_VALUE(nousedmem, smc->tlmkb, smc->tlmkb) : 0.0,
                         out + 3, outsize + 3, svg_p->dt);
                /* %commit */
                brappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         0.0,
                         (smc->tlmkb + smc->tlskb) ?
                         SP_VALUE(0, smc->comkb, smc->tlmkb + smc->tlskb) : 0.0,
                         out + 7, outsize + 7, svg_p->dt);
                /* %swpused */
                brappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         0.0,
                         smc->tlskb ?
                         SP_VALUE(smc->frskb, smc->tlskb, smc->tlskb) : 0.0,
                         out + 19, outsize + 19, svg_p->dt);
                /* %swpcad */
                brappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         0.0,
                         (smc->tlskb - smc->frskb) ?
                         SP_VALUE(0, smc->caskb, smc->tlskb - smc->frskb) : 0.0,
                         out + 20, outsize + 20, svg_p->dt);
        }

        if (action & F_END) {

                /* Conversion kB -> MB */
                for (i = 0; i < 17; i++) {
                        *(spmin + g_fields[i]) /= 1024;
                        *(spmax + g_fields[i]) /= 1024;
                }

                if (DISPLAY_MEMORY(a->opt_flags)) {
                        if (draw_activity_graphs(DISPLAY_MEM_ALL(a->opt_flags) ? 6 : 5,
                                                 g_type1, title1, g_title1, NULL, group1,
                                                 spmin, spmax, out, outsize, svg_p, record_hdr,
                                                 FALSE, a->id, xid)) {
                                xid++;
                        }
                }

                if (DISPLAY_SWAP(a->opt_flags)) {
                        draw_activity_graphs(3, g_type2, title2, g_title2, NULL, group2,
                                             spmin + 16, spmax + 16, out + 16, outsize + 16,
                                             svg_p, record_hdr, FALSE, a->id, xid);
                }

                /* Free remaining structures */
                free_graphs(out, outsize, spmin, spmax);
        }
}

/*
 ***************************************************************************
 * Display kernel tables statistics in SVG.
 *
 * IN:
 * @a           Activity structure with statistics.
 * @curr        Index in array for current sample statistics.
 * @action      Action expected from current function.
 * @svg_p       SVG specific parameters: Current graph number (.@graph_no),
 *              flag indicating that a restart record has been previously
 *              found (.@restart) and time used for the X axis origin
 *              (@ust_time_ref).
 * @itv         Interval of time in 1/100th of a second (only with F_MAIN action).
 * @record_hdr  Pointer on record header of current stats sample.
 ***************************************************************************
 */
__print_funct_t svg_print_ktables_stats(struct activity *a, int curr, int action, struct svg_parm *svg_p,
                                        unsigned long long itv, struct record_header *record_hdr)
{
        struct stats_ktables
                *skc = (struct stats_ktables *) a->buf[curr];
        int group[] = {3, 1};
        int g_type[] = {SVG_LINE_GRAPH, SVG_LINE_GRAPH};
        char *title[] = {"Kernel tables statistics (1)", "Kernel tables statistics (2)"};
        char *g_title[] = {"~dentunusd", "~file-nr", "~inode-nr",
                           "~pty-nr"};
        int g_fields[] = {1, 2, 0, 3};
        static double *spmin, *spmax;
        static char **out;
        static int *outsize;

        if (action & F_BEGIN) {
                /*
                 * Allocate arrays that will contain the graphs data
                 * and the min/max values.
                 */
                out = allocate_graph_lines(4, &outsize, &spmin, &spmax);
        }

        if (action & F_MAIN) {
                /* Check for min/max values */
                save_extrema(a->gtypes_nr, (void *) a->buf[curr], NULL,
                             itv, spmin, spmax, g_fields);
                /* dentunusd */
                lniappend(record_hdr->ust_time - svg_p->ust_time_ref,
                          (unsigned long long) skc->dentry_stat,
                          out, outsize, svg_p->restart);
                /* file-nr */
                lniappend(record_hdr->ust_time - svg_p->ust_time_ref,
                          (unsigned long long) skc->file_used,
                          out + 1, outsize + 1, svg_p->restart);
                /* inode-nr */
                lniappend(record_hdr->ust_time - svg_p->ust_time_ref,
                          (unsigned long long) skc->inode_used,
                          out + 2, outsize + 2, svg_p->restart);
                /* pty-nr */
                lniappend(record_hdr->ust_time - svg_p->ust_time_ref,
                          (unsigned long long) skc->pty_nr,
                          out + 3, outsize + 3, svg_p->restart);
        }

        if (action & F_END) {
                draw_activity_graphs(a->g_nr, g_type, title, g_title, NULL, group,
                                     spmin, spmax, out, outsize, svg_p, record_hdr, FALSE, a->id, 0);

                /* Free remaining structures */
                free_graphs(out, outsize, spmin, spmax);
        }
}

/*
 ***************************************************************************
 * Display queue and load statistics in SVG.
 *
 * IN:
 * @a           Activity structure with statistics.
 * @curr        Index in array for current sample statistics.
 * @action      Action expected from current function.
 * @svg_p       SVG specific parameters: Current graph number (.@graph_no),
 *              flag indicating that a restart record has been previously
 *              found (.@restart) and time used for the X axis origin
 *              (@ust_time_ref).
 * @itv         Interval of time in 1/100th of a second (only with F_MAIN action).
 * @record_hdr  Pointer on record header of current stats sample.
 ***************************************************************************
 */
__print_funct_t svg_print_queue_stats(struct activity *a, int curr, int action, struct svg_parm *svg_p,
                                      unsigned long long itv, struct record_header *record_hdr)
{
        struct stats_queue
                *sqc = (struct stats_queue *) a->buf[curr];
        int group[] = {2, 1, 3};
        int g_type[] = {SVG_LINE_GRAPH, SVG_LINE_GRAPH, SVG_LINE_GRAPH};
        char *title[] = {"Queue length", "Task list statistics", "Load average statistics"};
        char *g_title[] = {"~runq-sz", "~blocked",
                           "~plist-sz",
                           "ldavg-1", "ldavg-5", "ldavg-15"};
        int g_fields[] = {0, 1, 2, 3, 4, 5};
        static double *spmin, *spmax;
        static char **out;
        static int *outsize;

        if (action & F_BEGIN) {
                /*
                 * Allocate arrays that will contain the graphs data
                 * and the min/max values.
                 */
                out = allocate_graph_lines(6, &outsize, &spmin, &spmax);
        }

        if (action & F_MAIN) {
                /* Check for min/max values */
                save_extrema(a->gtypes_nr, (void *) a->buf[curr], NULL,
                             itv, spmin, spmax, g_fields);
                /* runq-sz */
                lniappend(record_hdr->ust_time - svg_p->ust_time_ref,
                          (unsigned long long) sqc->nr_running,
                          out, outsize, svg_p->restart);
                /* blocked */
                lniappend(record_hdr->ust_time - svg_p->ust_time_ref,
                          (unsigned long long) sqc->procs_blocked,
                          out + 1, outsize + 1, svg_p->restart);
                /* plist-sz */
                lniappend(record_hdr->ust_time - svg_p->ust_time_ref,
                          (unsigned long long) sqc->nr_threads,
                          out + 2, outsize + 2, svg_p->restart);
                /* ldavg-1 */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         (double) sqc->load_avg_1 / 100,
                         out + 3, outsize + 3, svg_p->restart);
                /* ldavg-5 */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         (double) sqc->load_avg_5 / 100,
                         out + 4, outsize + 4, svg_p->restart);
                /* ldavg-15 */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         (double) sqc->load_avg_15 / 100,
                         out + 5, outsize + 5, svg_p->restart);
        }

        if (action & F_END) {
                /* Fix min/max values for load average */
                *(spmin + 3) /= 100; *(spmax + 3) /= 100;
                *(spmin + 4) /= 100; *(spmax + 4) /= 100;
                *(spmin + 5) /= 100; *(spmax + 5) /= 100;

                draw_activity_graphs(a->g_nr, g_type, title, g_title, NULL, group,
                                     spmin, spmax, out, outsize, svg_p, record_hdr, FALSE, a->id, 0);

                /* Free remaining structures */
                free_graphs(out, outsize, spmin, spmax);
        }
}

/*
 ***************************************************************************
 * Display disk statistics in SVG.
 *
 * IN:
 * @a           Activity structure with statistics.
 * @curr        Index in array for current sample statistics.
 * @action      Action expected from current function.
 * @svg_p       SVG specific parameters: Current graph number (.@graph_no),
 *              flag indicating that a restart record has been previously
 *              found (.@restart) and time used for the X axis origin
 *              (@ust_time_ref).
 * @itv         Interval of time in 1/100th of a second (only with F_MAIN action).
 * @record_hdr  Pointer on record header of current stats sample.
 ***************************************************************************
 */
__print_funct_t svg_print_disk_stats(struct activity *a, int curr, int action, struct svg_parm *svg_p,
                                     unsigned long long itv, struct record_header *record_hdr)
{
        struct stats_disk *sdc, *sdp, sdpzero;
        struct ext_disk_stats xds;
        int group[] = {1, 3, 2, 1, 1};
        int g_type[] = {SVG_LINE_GRAPH, SVG_LINE_GRAPH, SVG_LINE_GRAPH,
                        SVG_LINE_GRAPH, SVG_BAR_GRAPH};
        char *title[] = {"Block devices statistics (1)", "Block devices statistics (2)",
                         "Block devices statistics (3)", "Block devices statistics (4)",
                         "Block devices statistics (5)"};
        char *g_title[] = {"tps",
                           "rkB/s", "wkB/s", "dkB/s",
                           "areq-sz", "aqu-sz",
                           "await",
                           "%util"};
        int g_fields[] = {0, 1, 2};
        int nr_arrays = 9;
        unsigned int local_types_nr[] = {1, 0, 0};
        static double *spmin, *spmax;
        static char **out;
        static int *outsize;
        char *item_name;
        double rkB, wkB, dkB, aqusz;
        int i, j, k, pos, restart, *unregistered;

        if (action & F_BEGIN) {
                /*
                 * Allocate arrays (#0..7) that will contain the graphs data
                 * and the min/max values.
                 * Also allocate one additional array (#8) for each disk device:
                 * spmax + 8 will contain the device major number,
                 * spmin + 8 will contain the device minor number,
                 * outsize + 8 will contain a positive value (TRUE) if the device
                 * has either still not been registered, or has been unregistered.
                 */
                out = allocate_graph_lines(nr_arrays * a->item_list_sz, &outsize, &spmin, &spmax);
        }

        if (action & F_MAIN) {
                memset(&sdpzero, 0, STATS_DISK_SIZE);
                restart = svg_p->restart;
                /*
                 * Mark previously registered devices as now
                 * possibly unregistered for all graphs.
                 */
                for (k = 0; k < a->item_list_sz; k++) {
                        unregistered = outsize + k * nr_arrays + 8;
                        if (*unregistered == FALSE) {
                                *unregistered = MAYBE;
                        }
                }

                /* For each device structure */
                for (i = 0; i < a->nr[curr]; i++) {
                        sdc = (struct stats_disk *) ((char *) a->buf[curr] + i * a->msize);

                        /* Get device name */
                        item_name = get_sa_devname(sdc->major, sdc->minor, flags);

                        if (a->item_list != NULL) {
                                /* A list of devices has been entered on the command line */
                                if (!search_list_item(a->item_list, item_name))
                                        /* Device not found */
                                        continue;
                        }

                        /* Look for corresponding graph */
                        for (k = 0; k < a->item_list_sz; k++) {
                                if ((sdc->major == *(spmax + k * nr_arrays + 8)) &&
                                    (sdc->minor == *(spmin + k * nr_arrays + 8)))
                                        /* Graph found! */
                                        break;
                        }
                        if (k == a->item_list_sz) {
                                /* Graph not found: Look for first free entry */
                                for (k = 0; k < a->item_list_sz; k++) {
                                        if (*(spmax + k * nr_arrays + 8) == -DBL_MAX)
                                                break;
                                }
                                if (k == a->item_list_sz) {
                                        /* No free graph entry: Ignore it (should never happen) */
#ifdef DEBUG
                                        fprintf(stderr, "%s: Name=%s major=%d minor=%d\n",
                                                __FUNCTION__, item_name, sdc->major, sdc->minor);
#endif
                                        continue;
                                }
                        }
                        pos = k * nr_arrays;
                        unregistered = outsize + pos + 8;

                        /*
                         * If current device was marked as previously unregistered,
                         * then set restart variable to TRUE so that the graph will be
                         * discontinuous, and mark it as now registered.
                         */
                        if (*unregistered == TRUE) {
                                restart = TRUE;
                        }
                        *unregistered = FALSE;

                        if (*(spmax + pos + 8) == -DBL_MAX) {
                                /* Save device major and minor numbers (if not already done) */
                                *(spmax + pos + 8) = sdc->major;
                                *(spmin + pos + 8) = sdc->minor;
                        }

                        j = check_disk_reg(a, curr, !curr, i);
                        if (j < 0) {
                                /* This is a newly registered interface. Previous stats are zero */
                                sdp = &sdpzero;
                        }
                        else {
                                sdp = (struct stats_disk *) ((char *) a->buf[!curr] + j * a->msize);
                        }

                        /* Check for min/max values */
                        save_extrema(local_types_nr, (void *) sdc, (void *) sdp,
                                     itv, spmin + pos, spmax + pos, g_fields);

                        rkB = S_VALUE(sdp->rd_sect, sdc->rd_sect, itv) / 2;
                        wkB = S_VALUE(sdp->wr_sect, sdc->wr_sect, itv) / 2;
                        dkB = S_VALUE(sdp->dc_sect, sdc->dc_sect, itv) / 2;
                        if (rkB < *(spmin + pos + 1)) {
                                *(spmin + pos + 1) = rkB;
                        }
                        if (rkB > *(spmax + pos + 1)) {
                                *(spmax + pos + 1) = rkB;
                        }
                        if (wkB < *(spmin + pos + 2)) {
                                *(spmin + pos + 2) = wkB;
                        }
                        if (wkB > *(spmax + pos + 2)) {
                                *(spmax + pos + 2) = wkB;
                        }
                        if (dkB < *(spmin + pos + 3)) {
                                *(spmin + pos + 3) = dkB;
                        }
                        if (dkB > *(spmax + pos + 3)) {
                                *(spmax + pos + 3) = dkB;
                        }

                        compute_ext_disk_stats(sdc, sdp, itv, &xds);
                        if ((xds.arqsz / 2) < *(spmin + pos + 4)) {
                                *(spmin + pos + 4) = xds.arqsz / 2;
                        }
                        if ((xds.arqsz / 2) > *(spmax + pos + 4)) {
                                *(spmax + pos + 4) = xds.arqsz / 2;
                        }
                        aqusz = S_VALUE(sdp->rq_ticks, sdc->rq_ticks, itv) / 1000.0;
                        if (aqusz < *(spmin + pos + 5)) {
                                *(spmin + pos + 5) = aqusz;
                        }
                        if (aqusz > *(spmax + pos + 5)) {
                                *(spmax + pos + 5) = aqusz;
                        }
                        if (xds.await < *(spmin + pos + 6)) {
                                *(spmin + pos + 6) = xds.await;
                        }
                        if (xds.await > *(spmax + pos + 6)) {
                                *(spmax + pos + 6) = xds.await;
                        }
                        if ((xds.util / 10.0) < *(spmin + pos + 7)) {
                                *(spmin + pos + 7) = xds.util / 10.0;
                        }
                        if ((xds.util / 10.0) > *(spmax + pos + 7)) {
                                *(spmax + pos + 7) = xds.util / 10.0;
                        }

                        /* tps */
                        lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                                 S_VALUE(sdp->nr_ios, sdc->nr_ios, itv),
                                 out + pos, outsize + pos, restart);
                        /* rkB/s */
                        lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                                 S_VALUE(sdp->rd_sect, sdc->rd_sect, itv) / 2,
                                 out + pos + 1, outsize + pos + 1, restart);
                        /* wkB/s */
                        lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                                 S_VALUE(sdp->wr_sect, sdc->wr_sect, itv) / 2,
                                 out + pos + 2, outsize + pos + 2, restart);
                        /* dkB/s */
                        lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                                 S_VALUE(sdp->wr_sect, sdc->wr_sect, itv) / 2,
                                 out + pos + 3, outsize + pos + 3, restart);
                        /* areq-sz */
                        lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                                 xds.arqsz / 2,
                                 out + pos + 4, outsize + pos + 4, restart);
                        /* aqu-sz */
                        lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                                 aqusz,
                                 out + pos + 5, outsize + pos + 5, restart);
                        /* await */
                        lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                                 xds.await,
                                 out + pos + 6, outsize + pos + 6, restart);
                        /* %util */
                        brappend(record_hdr->ust_time - svg_p->ust_time_ref,
                                 0.0, xds.util / 10.0,
                                 out + pos + 7, outsize + pos + 7, svg_p->dt);
                }

                /* Mark devices not seen here as now unregistered */
                for (k = 0; k < a->item_list_sz; k++) {
                        unregistered = outsize + k * nr_arrays + 8;
                        if (*unregistered != FALSE) {
                                *unregistered = TRUE;
                        }
                }
        }

        if (action & F_END) {
                int xid = 0;

                for (i = 0; i < a->item_list_sz; i++) {
                        /* Check if there is something to display */
                        pos = i * nr_arrays;
                        if (!**(out + pos))
                                continue;

                        /* Get device name */
                        item_name = get_sa_devname(*(spmax + pos + 8), *(spmin + pos + 8), flags);

                        if (draw_activity_graphs(a->g_nr, g_type,
                                                 title, g_title, item_name, group,
                                                 spmin + pos, spmax + pos, out + pos, outsize + pos,
                                                 svg_p, record_hdr, FALSE, a->id, xid)) {
                                xid++;
                        }
                }

                /* Free remaining structures */
                free_graphs(out, outsize, spmin, spmax);
        }
}

/*
 ***************************************************************************
 * Display network interfaces statistics in SVG.
 *
 * IN:
 * @a           Activity structure with statistics.
 * @curr        Index in array for current sample statistics.
 * @action      Action expected from current function.
 * @svg_p       SVG specific parameters: Current graph number (.@graph_no),
 *              flag indicating that a restart record has been previously
 *              found (.@restart) and time used for the X axis origin
 *              (@ust_time_ref).
 * @itv         Interval of time in 1/100th of a second (only with F_MAIN action).
 * @record_hdr  Pointer on record header of current stats sample.
 ***************************************************************************
 */
__print_funct_t svg_print_net_dev_stats(struct activity *a, int curr, int action, struct svg_parm *svg_p,
                                        unsigned long long itv, struct record_header *record_hdr)
{
        struct stats_net_dev *sndc, *sndp, sndzero;
        int group[] = {2, 2, 3, 1};
        int g_type[] = {SVG_LINE_GRAPH, SVG_LINE_GRAPH, SVG_LINE_GRAPH,
                        SVG_BAR_GRAPH};
        char *title[] = {"Network interfaces statistics (1)", "Network interfaces statistics (2)",
                         "Network interfaces statistics (3)", "Network interfaces statistics (4)"};
        char *g_title[] = {"rxpck/s", "txpck/s",
                           "rxkB/s", "txkB/s",
                           "rxcmp/s", "txcmp/s", "rxmcst/s",
                           "%ifutil"};
        int g_fields[] = {0, 1, 2, 3, 4, 5, 6};
        unsigned int local_types_nr[] = {7, 0, 0};
        static double *spmin, *spmax;
        static char **out;
        static int *outsize;
        char *item_name;
        double rxkb, txkb, ifutil;
        int i, j, k, pos, restart, *unregistered;

        if (action & F_BEGIN) {
                /*
                 * Allocate arrays (#0..7) that will contain the graphs data
                 * and the min/max values.
                 * Also allocate one additional array (#8) for each interface:
                 * out + 8 will contain the interface name,
                 * outsize + 8 will contain a positive value (TRUE) if the interface
                 * has either still not been registered, or has been unregistered.
                 */
                out = allocate_graph_lines(9 * a->item_list_sz, &outsize, &spmin, &spmax);
        }

        if (action & F_MAIN) {
                memset(&sndzero, 0, STATS_NET_DEV_SIZE);
                restart = svg_p->restart;
                /*
                 * Mark previously registered interfaces as now
                 * possibly unregistered for all graphs.
                 */
                for (k = 0; k < a->item_list_sz; k++) {
                        unregistered = outsize + k * 9 + 8;
                        if (*unregistered == FALSE) {
                                *unregistered = MAYBE;
                        }
                }

                /* For each network interfaces structure */
                for (i = 0; i < a->nr[curr]; i++) {
                        sndc = (struct stats_net_dev *) ((char *) a->buf[curr] + i * a->msize);

                        if (a->item_list != NULL) {
                                /* A list of devices has been entered on the command line */
                                if (!search_list_item(a->item_list, sndc->interface))
                                        /* Device not found */
                                        continue;
                        }

                        /* Look for corresponding graph */
                        for (k = 0; k < a->item_list_sz; k++) {
                                item_name = *(out + k * 9 + 8);
                                if (!strcmp(sndc->interface, item_name))
                                        /* Graph found! */
                                        break;
                        }
                        if (k == a->item_list_sz) {
                                /* Graph not found: Look for first free entry */
                                for (k = 0; k < a->item_list_sz; k++) {
                                        item_name = *(out + k * 9 + 8);
                                        if (!strcmp(item_name, ""))
                                                break;
                                }
                                if (k == a->item_list_sz) {
                                        /* No free graph entry: Ignore it (should never happen) */
#ifdef DEBUG
                                        fprintf(stderr, "%s: Name=%s\n",
                                                __FUNCTION__, sndc->interface);
#endif
                                        continue;
                                }
                        }
                        pos = k * 9;
                        unregistered = outsize + pos + 8;

                        j = check_net_dev_reg(a, curr, !curr, i);
                        if (j < 0) {
                                /* This is a newly registered interface. Previous stats are zero */
                                sndp = &sndzero;
                        }
                        else {
                                sndp = (struct stats_net_dev *) ((char *) a->buf[!curr] + j * a->msize);
                        }

                        /*
                         * If current interface was marked as previously unregistered,
                         * then set restart variable to TRUE so that the graph will be
                         * discontinuous, and mark it as now registered.
                         */
                        if (*unregistered == TRUE) {
                                restart = TRUE;
                        }
                        *unregistered = FALSE;

                        item_name = *(out + pos + 8);
                        if (!item_name[0]) {
                                /* Save network interface name (if not already done) */
                                strncpy(item_name, sndc->interface, CHUNKSIZE);
                                item_name[CHUNKSIZE - 1] = '\0';
                        }

                        /* Check for min/max values */
                        save_extrema(local_types_nr, (void *) sndc, (void *) sndp,
                                     itv, spmin + pos, spmax + pos, g_fields);

                        rxkb = S_VALUE(sndp->rx_bytes, sndc->rx_bytes, itv);
                        txkb = S_VALUE(sndp->tx_bytes, sndc->tx_bytes, itv);
                        ifutil = compute_ifutil(sndc, rxkb, txkb);
                        if (ifutil < *(spmin + pos + 7)) {
                                *(spmin + pos + 7) = ifutil;
                        }
                        if (ifutil > *(spmax + pos + 7)) {
                                *(spmax + pos + 7) = ifutil;
                        }

                        /* rxpck/s */
                        lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                                 S_VALUE(sndp->rx_packets, sndc->rx_packets, itv),
                                 out + pos, outsize + pos, restart);
                        /* txpck/s */
                        lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                                 S_VALUE(sndp->tx_packets, sndc->tx_packets, itv),
                                 out + pos + 1, outsize + pos + 1, restart);
                        /* rxkB/s */
                        lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                                 rxkb / 1024,
                                 out + pos + 2, outsize + pos + 2, restart);
                        /* txkB/s */
                        lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                                 txkb / 1024,
                                 out + pos + 3, outsize + pos + 3, restart);
                        /* rxcmp/s */
                        lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                                 S_VALUE(sndp->rx_compressed, sndc->rx_compressed, itv),
                                 out + pos + 4, outsize + pos + 4, restart);
                        /* txcmp/s */
                        lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                                 S_VALUE(sndp->tx_compressed, sndc->tx_compressed, itv),
                                 out + pos + 5, outsize + pos + 5, restart);
                        /* rxmcst/s */
                        lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                                 S_VALUE(sndp->multicast, sndc->multicast, itv),
                                 out + pos + 6, outsize + pos + 6, restart);
                        /* %ifutil */
                        brappend(record_hdr->ust_time - svg_p->ust_time_ref,
                                 0.0, ifutil,
                                 out + pos + 7, outsize + pos + 7, svg_p->dt);
                }

                /* Mark interfaces not seen here as now unregistered */
                for (k = 0; k < a->item_list_sz; k++) {
                        unregistered = outsize + k * 9 + 8;
                        if (*unregistered != FALSE) {
                                *unregistered = TRUE;
                        }
                }
        }

        if (action & F_END) {
                int xid = 0;

                for (i = 0; i < a->item_list_sz; i++) {
                        /*
                         * Check if there is something to display.
                         * Don't test sndc->interface because maybe the network
                         * interface has been registered later.
                         */
                        pos = i * 9;
                        if (!**(out + pos))
                                continue;

                        /* Recalculate min and max values in kB, not in B */
                        *(spmin + pos + 2) /= 1024;
                        *(spmax + pos + 2) /= 1024;
                        *(spmin + pos + 3) /= 1024;
                        *(spmax + pos + 3) /= 1024;

                        item_name = *(out + pos + 8);
                        if (draw_activity_graphs(a->g_nr, g_type,
                                                 title, g_title, item_name, group,
                                                 spmin + pos, spmax + pos, out + pos, outsize + pos,
                                                 svg_p, record_hdr, FALSE, a->id, xid)) {
                                xid++;
                        }
                }

                /* Free remaining structures */
                free_graphs(out, outsize, spmin, spmax);
        }
}

/*
 ***************************************************************************
 * Display network interfaces errors statistics in SVG.
 *
 * IN:
 * @a           Activity structure with statistics.
 * @curr        Index in array for current sample statistics.
 * @action      Action expected from current function.
 * @svg_p       SVG specific parameters: Current graph number (.@graph_no),
 *              flag indicating that a restart record has been previously
 *              found (.@restart) and time used for the X axis origin
 *              (@ust_time_ref).
 * @itv         Interval of time in 1/100th of a second (only with F_MAIN action).
 * @record_hdr  Pointer on record header of current stats sample.
 ***************************************************************************
 */
__print_funct_t svg_print_net_edev_stats(struct activity *a, int curr, int action, struct svg_parm *svg_p,
                                         unsigned long long itv, struct record_header *record_hdr)
{
        struct stats_net_edev *snedc, *snedp, snedzero;
        int group[] = {2, 2, 2, 3};
        int g_type[] = {SVG_LINE_GRAPH, SVG_LINE_GRAPH, SVG_LINE_GRAPH,
                        SVG_LINE_GRAPH};
        char *title[] = {"Network interfaces errors statistics (1)", "Network interfaces errors statistics (2)",
                         "Network interfaces errors statistics (3)", "Network interfaces errors statistics (4)"};
        char *g_title[] = {"rxerr/s", "txerr/s",
                            "rxdrop/s", "txdrop/s",
                            "rxfifo/s", "txfifo/s",
                            "coll/s", "txcarr/s", "rxfram/s"};
        int g_fields[] = {6, 0, 1, 2, 3, 4, 5, 8, 7};
        static double *spmin, *spmax;
        static char **out;
        static int *outsize;
        char *item_name;
        int i, j, k, pos, restart, *unregistered;

        if (action & F_BEGIN) {
                /*
                 * Allocate arrays (#0..8) that will contain the graphs data
                 * and the min/max values.
                 * Also allocate one additional array (#9) for each interface:
                 * out + 9 will contain the interface name,
                 * outsize + 9 will contain a positive value (TRUE) if the interface
                 * has either still not been registered, or has been unregistered.
                 */
                out = allocate_graph_lines(10 * a->item_list_sz, &outsize, &spmin, &spmax);
        }

        if (action & F_MAIN) {
                memset(&snedzero, 0, STATS_NET_EDEV_SIZE);
                restart = svg_p->restart;
                /*
                 * Mark previously registered interfaces as now
                 * possibly unregistered for all graphs.
                 */
                for (k = 0; k < a->item_list_sz; k++) {
                        unregistered = outsize + k * 10 + 9;
                        if (*unregistered == FALSE) {
                                *unregistered = MAYBE;
                        }
                }

                /* For each network interfaces structure */
                for (i = 0; i < a->nr[curr]; i++) {
                        snedc = (struct stats_net_edev *) ((char *) a->buf[curr] + i * a->msize);
                        if (!strcmp(snedc->interface, ""))
                                /* Empty structure: This is the end of the list */
                                break;

                        if (a->item_list != NULL) {
                                /* A list of devices has been entered on the command line */
                                if (!search_list_item(a->item_list, snedc->interface))
                                        /* Device not found */
                                        continue;
                        }

                        /* Look for corresponding graph */
                        for (k = 0; k < a->item_list_sz; k++) {
                                item_name = *(out + k * 10 + 9);
                                if (!strcmp(snedc->interface, item_name))
                                        /* Graph found! */
                                        break;
                        }
                        if (k == a->item_list_sz) {
                                /* Graph not found: Look for first free entry */
                                for (k = 0; k < a->item_list_sz; k++) {
                                        item_name = *(out + k * 10 + 9);
                                        if (!strcmp(item_name, ""))
                                                break;
                                }
                                if (k == a->item_list_sz) {
                                        /* No free graph entry: Ignore it (should never happen) */
#ifdef DEBUG
                                        fprintf(stderr, "%s: Name=%s\n",
                                                __FUNCTION__, snedc->interface);
#endif
                                        continue;
                                }
                        }

                        pos = k * 10;
                        unregistered = outsize + pos + 9;

                        j = check_net_edev_reg(a, curr, !curr, i);
                        if (j < 0) {
                                /* This is a newly registered interface. Previous stats are zero */
                                snedp = &snedzero;
                        }
                        else {
                                snedp = (struct stats_net_edev *) ((char *) a->buf[!curr] + j * a->msize);
                        }

                        /*
                         * If current interface was marked as previously unregistered,
                         * then set restart variable to TRUE so that the graph will be
                         * discontinuous, and mark it as now registered.
                         */
                        if (*unregistered == TRUE) {
                                restart = TRUE;
                        }
                        *unregistered = FALSE;

                        item_name = *(out + pos + 9);
                        if (!item_name[0]) {
                                /* Save network interface name (if not already done) */
                                strncpy(item_name, snedc->interface, CHUNKSIZE);
                                item_name[CHUNKSIZE - 1] = '\0';
                        }

                        /* Check for min/max values */
                        save_extrema(a->gtypes_nr, (void *) snedc, (void *) snedp,
                                     itv, spmin + pos, spmax + pos, g_fields);

                        /* rxerr/s */
                        lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                                 S_VALUE(snedp->rx_errors, snedc->rx_errors, itv),
                                 out + pos, outsize + pos, restart);
                        /* txerr/s */
                        lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                                 S_VALUE(snedp->tx_errors, snedc->tx_errors, itv),
                                 out + pos + 1, outsize + pos + 1, restart);
                        /* rxdrop/s */
                        lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                                 S_VALUE(snedp->rx_dropped, snedc->rx_dropped, itv),
                                 out + pos + 2, outsize + pos + 2, restart);
                        /* txdrop/s */
                        lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                                 S_VALUE(snedp->tx_dropped, snedc->tx_dropped, itv),
                                 out + pos + 3, outsize + pos + 3, restart);
                        /* rxfifo/s */
                        lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                                 S_VALUE(snedp->rx_fifo_errors, snedc->rx_fifo_errors, itv),
                                 out + pos + 4, outsize + pos + 4, restart);
                        /* txfifo/s */
                        lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                                 S_VALUE(snedp->tx_fifo_errors, snedc->tx_fifo_errors, itv),
                                 out + pos + 5, outsize + pos + 5, restart);
                        /* coll/s */
                        lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                                 S_VALUE(snedp->collisions, snedc->collisions, itv),
                                 out + pos + 6, outsize + pos + 6, restart);
                        /* txcarr/s */
                        lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                                 S_VALUE(snedp->tx_carrier_errors, snedc->tx_carrier_errors, itv),
                                 out + pos + 7, outsize + pos + 7, restart);
                        /* rxfram/s */
                        lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                                 S_VALUE(snedp->rx_frame_errors, snedc->rx_frame_errors, itv),
                                 out + pos + 8, outsize + pos + 8, restart);
                }

                /* Mark interfaces not seen here as now unregistered */
                for (k = 0; k < a->item_list_sz; k++) {
                        unregistered = outsize + k * 10 + 9;
                        if (*unregistered != FALSE) {
                                *unregistered = TRUE;
                        }
                }
        }

        if (action & F_END) {
                int xid = 0;

                for (i = 0; i < a->item_list_sz; i++) {
                        /*
                         * Check if there is something to display.
                         * Don't test snedc->interface because maybe the network
                         * interface has been registered later.
                         */
                        pos = i * 10;
                        if (!**(out + pos))
                                continue;

                        item_name = *(out + pos + 9);
                        if (draw_activity_graphs(a->g_nr, g_type,
                                                 title, g_title, item_name, group,
                                                 spmin + pos, spmax + pos, out + pos, outsize + pos,
                                                 svg_p, record_hdr, FALSE, a->id, xid)) {
                                xid++;
                        }
                }

                /* Free remaining structures */
                free_graphs(out, outsize, spmin, spmax);
        }
}

/*
 ***************************************************************************
 * Display NFS client statistics in SVG.
 *
 * IN:
 * @a           Activity structure with statistics.
 * @curr        Index in array for current sample statistics.
 * @action      Action expected from current function.
 * @svg_p       SVG specific parameters: Current graph number (.@graph_no),
 *              flag indicating that a restart record has been previously
 *              found (.@restart) and time used for the X axis origin
 *              (@ust_time_ref).
 * @itv         Interval of time in 1/100th of a second (only with F_MAIN action).
 * @record_hdr  Pointer on record header of current stats sample.
 ***************************************************************************
 */
__print_funct_t svg_print_net_nfs_stats(struct activity *a, int curr, int action, struct svg_parm *svg_p,
                                        unsigned long long itv, struct record_header *record_hdr)
{
        struct stats_net_nfs
                *snnc = (struct stats_net_nfs *) a->buf[curr],
                *snnp = (struct stats_net_nfs *) a->buf[!curr];
        int group[] = {2, 2, 2};
        int g_type[] = {SVG_LINE_GRAPH, SVG_LINE_GRAPH, SVG_LINE_GRAPH};
        char *title[] = {"NFS client statistics (1)", "NFS client statistics (2)",
                         "NFS client statistics (3)"};
        char *g_title[] = {"call/s", "retrans/s",
                           "read/s", "write/s",
                           "access/s", "getatt/s"};
        int g_fields[] = {0, 1, 2, 3, 4, 5};
        static double *spmin, *spmax;
        static char **out;
        static int *outsize;

        if (action & F_BEGIN) {
                /*
                 * Allocate arrays that will contain the graphs data
                 * and the min/max values.
                 */
                out = allocate_graph_lines(6, &outsize, &spmin, &spmax);
        }

        if (action & F_MAIN) {
                /* Check for min/max values */
                save_extrema(a->gtypes_nr, (void *) a->buf[curr], (void *) a->buf[!curr],
                             itv, spmin, spmax, g_fields);

                /* call/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snnp->nfs_rpccnt, snnc->nfs_rpccnt, itv),
                         out, outsize, svg_p->restart);
                /* retrans/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snnp->nfs_rpcretrans, snnc->nfs_rpcretrans, itv),
                         out + 1, outsize + 1, svg_p->restart);
                /* read/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snnp->nfs_readcnt, snnc->nfs_readcnt, itv),
                         out + 2, outsize + 2, svg_p->restart);
                /* write/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snnp->nfs_writecnt, snnc->nfs_writecnt, itv),
                         out + 3, outsize + 3, svg_p->restart);
                /* access/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snnp->nfs_accesscnt, snnc->nfs_accesscnt, itv),
                         out + 4, outsize + 4, svg_p->restart);
                /* getatt/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snnp->nfs_getattcnt, snnc->nfs_getattcnt, itv),
                         out + 5, outsize + 5, svg_p->restart);
        }

        if (action & F_END) {
                draw_activity_graphs(a->g_nr, g_type, title, g_title, NULL, group,
                                     spmin, spmax, out, outsize, svg_p, record_hdr, FALSE, a->id, 0);

                /* Free remaining structures */
                free_graphs(out, outsize, spmin, spmax);
        }
}

/*
 ***************************************************************************
 * Display NFS server statistics in SVG.
 *
 * IN:
 * @a           Activity structure with statistics.
 * @curr        Index in array for current sample statistics.
 * @action      Action expected from current function.
 * @svg_p       SVG specific parameters: Current graph number (.@graph_no),
 *              flag indicating that a restart record has been previously
 *              found (.@restart) and time used for the X axis origin
 *              (@ust_time_ref).
 * @itv         Interval of time in 1/100th of a second (only with F_MAIN action).
 * @record_hdr  Pointer on record header of current stats sample.
 ***************************************************************************
 */
__print_funct_t svg_print_net_nfsd_stats(struct activity *a, int curr, int action, struct svg_parm *svg_p,
                                         unsigned long long itv, struct record_header *record_hdr)
{
        struct stats_net_nfsd
                *snndc = (struct stats_net_nfsd *) a->buf[curr],
                *snndp = (struct stats_net_nfsd *) a->buf[!curr];
        int group[] = {2, 3, 2, 2, 2};
        int g_type[] = {SVG_LINE_GRAPH, SVG_LINE_GRAPH, SVG_LINE_GRAPH,
                        SVG_LINE_GRAPH, SVG_LINE_GRAPH};
        char *title[] = {"NFS server statistics (1)", "NFS server statistics (2)",
                         "NFS server statistics (3)", "NFS server statistics (4)",
                         "NFS server statistics (5)"};
        char *g_title[] = {"scall/s", "badcall/s",
                           "packet/s", "udp/s", "tcp/s",
                           "hit/s", "miss/s",
                           "sread/s", "swrite/s",
                           "saccess/s", "sgetatt/s"};
        int g_fields[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
        static double *spmin, *spmax;
        static char **out;
        static int *outsize;

        if (action & F_BEGIN) {
                /*
                 * Allocate arrays that will contain the graphs data
                 * and the min/max values.
                 */
                out = allocate_graph_lines(11, &outsize, &spmin, &spmax);
        }

        if (action & F_MAIN) {
                /* Check for min/max values */
                save_extrema(a->gtypes_nr, (void *) a->buf[curr], (void *) a->buf[!curr],
                             itv, spmin, spmax, g_fields);

                /* scall/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snndp->nfsd_rpccnt, snndc->nfsd_rpccnt, itv),
                         out, outsize, svg_p->restart);
                /* badcall/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snndp->nfsd_rpcbad, snndc->nfsd_rpcbad, itv),
                         out + 1, outsize + 1, svg_p->restart);
                /* packet/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snndp->nfsd_netcnt, snndc->nfsd_netcnt, itv),
                         out + 2, outsize + 2, svg_p->restart);
                /* udp/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snndp->nfsd_netudpcnt, snndc->nfsd_netudpcnt, itv),
                         out + 3, outsize + 3, svg_p->restart);
                /* tcp/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snndp->nfsd_nettcpcnt, snndc->nfsd_nettcpcnt, itv),
                         out + 4, outsize + 4, svg_p->restart);
                /* hit/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snndp->nfsd_rchits, snndc->nfsd_rchits, itv),
                         out + 5, outsize + 5, svg_p->restart);
                /* miss/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snndp->nfsd_rcmisses, snndc->nfsd_rcmisses, itv),
                         out + 6, outsize + 6, svg_p->restart);
                /* sread/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snndp->nfsd_readcnt, snndc->nfsd_readcnt, itv),
                         out + 7, outsize + 7, svg_p->restart);
                /* swrite/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snndp->nfsd_writecnt, snndc->nfsd_writecnt, itv),
                         out + 8, outsize + 8, svg_p->restart);
                /* saccess/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snndp->nfsd_accesscnt, snndc->nfsd_accesscnt, itv),
                         out + 9, outsize + 9, svg_p->restart);
                /* sgetatt/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snndp->nfsd_getattcnt, snndc->nfsd_getattcnt, itv),
                         out + 10, outsize + 10, svg_p->restart);
        }

        if (action & F_END) {
                draw_activity_graphs(a->g_nr, g_type, title, g_title, NULL, group,
                                     spmin, spmax, out, outsize, svg_p, record_hdr, FALSE, a->id, 0);

                /* Free remaining structures */
                free_graphs(out, outsize, spmin, spmax);
        }
}

/*
 ***************************************************************************
 * Display socket statistics in SVG.
 *
 * IN:
 * @a           Activity structure with statistics.
 * @curr        Index in array for current sample statistics.
 * @action      Action expected from current function.
 * @svg_p       SVG specific parameters: Current graph number (.@graph_no),
 *              flag indicating that a restart record has been previously
 *              found (.@restart) and time used for the X axis origin
 *              (@ust_time_ref).
 * @itv         Interval of time in 1/100th of a second (only with F_MAIN action).
 * @record_hdr  Pointer on record header of current stats sample.
 ***************************************************************************
 */
__print_funct_t svg_print_net_sock_stats(struct activity *a, int curr, int action, struct svg_parm *svg_p,
                                         unsigned long long itv, struct record_header *record_hdr)
{
        struct stats_net_sock
                *snsc = (struct stats_net_sock *) a->buf[curr];
        int group[] = {1, 5};
        int g_type[] = {SVG_LINE_GRAPH, SVG_LINE_GRAPH};
        char *title[] = {"IPv4 sockets statistics (1)", "IPv4 sockets statistics (2)"};
        char *g_title[] = {"~totsck",
                           "~tcpsck", "~udpsck", "~rawsck", "~ip-frag", "~tcp-tw"};
        int g_fields[] = {0, 1, 5, 2, 3, 4};
        static double *spmin, *spmax;
        static char **out;
        static int *outsize;

        if (action & F_BEGIN) {
                /*
                 * Allocate arrays that will contain the graphs data
                 * and the min/max values.
                 */
                out = allocate_graph_lines(6, &outsize, &spmin, &spmax);
        }

        if (action & F_MAIN) {
                /* Check for min/max values */
                save_extrema(a->gtypes_nr, (void *) a->buf[curr], NULL,
                             itv, spmin, spmax, g_fields);
                /* totsck */
                lniappend(record_hdr->ust_time - svg_p->ust_time_ref,
                          (unsigned long long) snsc->sock_inuse,
                          out, outsize, svg_p->restart);
                /* tcpsck */
                lniappend(record_hdr->ust_time - svg_p->ust_time_ref,
                          (unsigned long long) snsc->tcp_inuse,
                          out + 1, outsize + 1, svg_p->restart);
                /* udpsck */
                lniappend(record_hdr->ust_time - svg_p->ust_time_ref,
                          (unsigned long long) snsc->udp_inuse,
                          out + 2, outsize + 2, svg_p->restart);
                /* rawsck */
                lniappend(record_hdr->ust_time - svg_p->ust_time_ref,
                          (unsigned long long) snsc->raw_inuse,
                          out + 3, outsize + 3, svg_p->restart);
                /* ip-frag */
                lniappend(record_hdr->ust_time - svg_p->ust_time_ref,
                          (unsigned long long) snsc->frag_inuse,
                          out + 4, outsize + 4, svg_p->restart);
                /* tcp-tw */
                lniappend(record_hdr->ust_time - svg_p->ust_time_ref,
                          (unsigned long long) snsc->tcp_tw,
                          out + 5, outsize + 5, svg_p->restart);
        }

        if (action & F_END) {
                draw_activity_graphs(a->g_nr, g_type, title, g_title, NULL, group,
                                     spmin, spmax, out, outsize, svg_p, record_hdr, FALSE, a->id, 0);

                /* Free remaining structures */
                free_graphs(out, outsize, spmin, spmax);
        }
}

/*
 ***************************************************************************
 * Display IPv4 traffic statistics in SVG.
 *
 * IN:
 * @a           Activity structure with statistics.
 * @curr        Index in array for current sample statistics.
 * @action      Action expected from current function.
 * @svg_p       SVG specific parameters: Current graph number (.@graph_no),
 *              flag indicating that a restart record has been previously
 *              found (.@restart) and time used for the X axis origin
 *              (@ust_time_ref).
 * @itv         Interval of time in 1/100th of a second (only with F_MAIN action).
 * @record_hdr  Pointer on record header of current stats sample.
 ***************************************************************************
 */
__print_funct_t svg_print_net_ip_stats(struct activity *a, int curr, int action, struct svg_parm *svg_p,
                                       unsigned long long itv, struct record_header *record_hdr)
{
        struct stats_net_ip
                *snic = (struct stats_net_ip *) a->buf[curr],
                *snip = (struct stats_net_ip *) a->buf[!curr];
        int group[] = {4, 2, 2};
        int g_type[] = {SVG_LINE_GRAPH, SVG_LINE_GRAPH, SVG_LINE_GRAPH};
        char *title[] = {"IPv4 traffic statistics (1)", "IPv4 traffic statistics (2)", "IPv4 traffic statistics (3)"};
        char *g_title[] = {"irec/s", "fwddgm/s", "idel/s", "orq/s",
                           "asmrq/s", "asmok/s",
                           "fragok/s", "fragcrt/s"};
        int g_fields[] = {0, 1, 2, 3, 4, 5, 6, 7};
        static double *spmin, *spmax;
        static char **out;
        static int *outsize;

        if (action & F_BEGIN) {
                /*
                 * Allocate arrays that will contain the graphs data
                 * and the min/max values.
                 */
                out = allocate_graph_lines(8, &outsize, &spmin, &spmax);
        }

        if (action & F_MAIN) {
                /* Check for min/max values */
                save_extrema(a->gtypes_nr, (void *) a->buf[curr], (void *) a->buf[!curr],
                             itv, spmin, spmax, g_fields);

                /* irec/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snip->InReceives, snic->InReceives, itv),
                         out, outsize, svg_p->restart);
                /* fwddgm/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snip->ForwDatagrams, snic->ForwDatagrams, itv),
                         out + 1, outsize + 1, svg_p->restart);
                /* idel/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snip->InDelivers, snic->InDelivers, itv),
                         out + 2, outsize + 2, svg_p->restart);
                /* orq/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snip->OutRequests, snic->OutRequests, itv),
                         out + 3, outsize + 3, svg_p->restart);
                /* asmrq/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snip->ReasmReqds, snic->ReasmReqds, itv),
                         out + 4, outsize + 4, svg_p->restart);
                /* asmok/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snip->ReasmOKs, snic->ReasmOKs, itv),
                         out + 5, outsize + 5, svg_p->restart);
                /* fragok/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snip->FragOKs, snic->FragOKs, itv),
                         out + 6, outsize + 6, svg_p->restart);
                /* fragcrt/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snip->FragCreates, snic->FragCreates, itv),
                         out + 7, outsize + 7, svg_p->restart);
        }

        if (action & F_END) {
                draw_activity_graphs(a->g_nr, g_type, title, g_title, NULL, group,
                                     spmin, spmax, out, outsize, svg_p, record_hdr, FALSE, a->id, 0);

                /* Free remaining structures */
                free_graphs(out, outsize, spmin, spmax);
        }
}

/*
 ***************************************************************************
 * Display IPv4 traffic errors statistics in SVG.
 *
 * IN:
 * @a           Activity structure with statistics.
 * @curr        Index in array for current sample statistics.
 * @action      Action expected from current function.
 * @svg_p       SVG specific parameters: Current graph number (.@graph_no),
 *              flag indicating that a restart record has been previously
 *              found (.@restart) and time used for the X axis origin
 *              (@ust_time_ref).
 * @itv         Interval of time in 1/100th of a second (only with F_MAIN action).
 * @record_hdr  Pointer on record header of current stats sample.
 ***************************************************************************
 */
__print_funct_t svg_print_net_eip_stats(struct activity *a, int curr, int action, struct svg_parm *svg_p,
                                        unsigned long long itv, struct record_header *record_hdr)
{
        struct stats_net_eip
                *sneic = (struct stats_net_eip *) a->buf[curr],
                *sneip = (struct stats_net_eip *) a->buf[!curr];
        int group[] = {3, 2, 3};
        int g_type[] = {SVG_LINE_GRAPH, SVG_LINE_GRAPH, SVG_LINE_GRAPH};
        char *title[] = {"IPv4 traffic errors statistics (1)", "IPv4 traffic errors statistics (2)",
                         "IPv4 traffic errors statistics (3)"};
        char *g_title[] = {"ihdrerr/s", "iadrerr/s", "iukwnpr/s",
                           "idisc/s", "odisc/s",
                           "onort/s", "asmf/s", "fragf/s"};
        int g_fields[] = {0, 1, 2, 3, 4, 5, 6, 7};
        static double *spmin, *spmax;
        static char **out;
        static int *outsize;

        if (action & F_BEGIN) {
                /*
                 * Allocate arrays that will contain the graphs data
                 * and the min/max values.
                 */
                out = allocate_graph_lines(8, &outsize, &spmin, &spmax);
        }

        if (action & F_MAIN) {
                /* Check for min/max values */
                save_extrema(a->gtypes_nr, (void *) a->buf[curr], (void *) a->buf[!curr],
                             itv, spmin, spmax, g_fields);

                /* ihdrerr/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(sneip->InHdrErrors, sneic->InHdrErrors, itv),
                         out, outsize, svg_p->restart);
                /* iadrerr/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(sneip->InAddrErrors, sneic->InAddrErrors, itv),
                         out + 1, outsize + 1, svg_p->restart);
                /* iukwnpr/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(sneip->InUnknownProtos, sneic->InUnknownProtos, itv),
                         out + 2, outsize + 2, svg_p->restart);
                /* idisc/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(sneip->InDiscards, sneic->InDiscards, itv),
                         out + 3, outsize + 3, svg_p->restart);
                /* odisc/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(sneip->OutDiscards, sneic->OutDiscards, itv),
                         out + 4, outsize + 4, svg_p->restart);
                /* onort/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(sneip->OutNoRoutes, sneic->OutNoRoutes, itv),
                         out + 5, outsize + 5, svg_p->restart);
                /* asmf/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(sneip->ReasmFails, sneic->ReasmFails, itv),
                         out + 6, outsize + 6, svg_p->restart);
                /* fragf/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(sneip->FragFails, sneic->FragFails, itv),
                         out + 7, outsize + 7, svg_p->restart);
        }

        if (action & F_END) {
                draw_activity_graphs(a->g_nr, g_type, title, g_title, NULL, group,
                                     spmin, spmax, out, outsize, svg_p, record_hdr, FALSE, a->id, 0);

                /* Free remaining structures */
                free_graphs(out, outsize, spmin, spmax);
        }
}

/*
 ***************************************************************************
 * Display ICMPv4 traffic statistics in SVG.
 *
 * IN:
 * @a           Activity structure with statistics.
 * @curr        Index in array for current sample statistics.
 * @action      Action expected from current function.
 * @svg_p       SVG specific parameters: Current graph number (.@graph_no),
 *              flag indicating that a restart record has been previously
 *              found (.@restart) and time used for the X axis origin
 *              (@ust_time_ref).
 * @itv         Interval of time in 1/100th of a second (only with F_MAIN action).
 * @record_hdr  Pointer on record header of current stats sample.
 ***************************************************************************
 */
__print_funct_t svg_print_net_icmp_stats(struct activity *a, int curr, int action, struct svg_parm *svg_p,
                                         unsigned long long itv, struct record_header *record_hdr)
{
        struct stats_net_icmp
                *snic = (struct stats_net_icmp *) a->buf[curr],
                *snip = (struct stats_net_icmp *) a->buf[!curr];
        int group[] = {2, 4, 4, 4};
        int g_type[] = {SVG_LINE_GRAPH, SVG_LINE_GRAPH, SVG_LINE_GRAPH,
                        SVG_LINE_GRAPH};
        char *title[] = {"ICMPv4 traffic statistics (1)", "ICMPv4 traffic statistics (2)",
                         "ICMPv4 traffic statistics (3)", "ICMPv4 traffic statistics (4)"};
        char *g_title[] = {"imsg/s", "omsg/s",
                           "iech/s", "iechr/s", "oech/s", "oechr/s",
                           "itm/s", "itmr/s", "otm/s", "otmr/s",
                           "iadrmk/s", "iadrmkr/s", "oadrmk/s", "oadrmkr/s"};
        int g_fields[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13};
        static double *spmin, *spmax;
        static char **out;
        static int *outsize;

        if (action & F_BEGIN) {
                /*
                 * Allocate arrays that will contain the graphs data
                 * and the min/max values.
                 */
                out = allocate_graph_lines(14, &outsize, &spmin, &spmax);
        }

        if (action & F_MAIN) {
                /* Check for min/max values */
                save_extrema(a->gtypes_nr, (void *) a->buf[curr], (void *) a->buf[!curr],
                             itv, spmin, spmax, g_fields);

                /* imsg/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snip->InMsgs, snic->InMsgs, itv),
                         out, outsize, svg_p->restart);
                /* omsg/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snip->OutMsgs, snic->OutMsgs, itv),
                         out + 1, outsize + 1, svg_p->restart);
                /* iech/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snip->InEchos, snic->InEchos, itv),
                         out + 2, outsize + 2, svg_p->restart);
                /* iechr/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snip->InEchoReps, snic->InEchoReps, itv),
                         out + 3, outsize + 3, svg_p->restart);
                /* oech/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snip->OutEchos, snic->OutEchos, itv),
                         out + 4, outsize + 4, svg_p->restart);
                /* oechr/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snip->OutEchoReps, snic->OutEchoReps, itv),
                         out + 5, outsize + 5, svg_p->restart);
                /* itm/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snip->InTimestamps, snic->InTimestamps, itv),
                         out + 6, outsize + 6, svg_p->restart);
                /* itmr/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snip->InTimestampReps, snic->InTimestampReps, itv),
                         out + 7, outsize + 7, svg_p->restart);
                /* otm/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snip->OutTimestamps, snic->OutTimestamps, itv),
                         out + 8, outsize + 8, svg_p->restart);
                /* otmr/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snip->OutTimestampReps, snic->OutTimestampReps, itv),
                         out + 9, outsize + 9, svg_p->restart);
                /* iadrmk/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snip->InAddrMasks, snic->InAddrMasks, itv),
                         out + 10, outsize + 10, svg_p->restart);
                /* iadrmkr/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snip->InAddrMaskReps, snic->InAddrMaskReps, itv),
                         out + 11, outsize + 11, svg_p->restart);
                /* oadrmk/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snip->OutAddrMasks, snic->OutAddrMasks, itv),
                         out + 12, outsize + 12, svg_p->restart);
                /* oadrmkr/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snip->OutAddrMaskReps, snic->OutAddrMaskReps, itv),
                         out + 13, outsize + 13, svg_p->restart);
        }

        if (action & F_END) {
                draw_activity_graphs(a->g_nr, g_type, title, g_title, NULL, group,
                                     spmin, spmax, out, outsize, svg_p, record_hdr, FALSE, a->id, 0);

                /* Free remaining structures */
                free_graphs(out, outsize, spmin, spmax);
        }
}

/*
 ***************************************************************************
 * Display ICMPv4 traffic errors statistics in SVG.
 *
 * IN:
 * @a           Activity structure with statistics.
 * @curr        Index in array for current sample statistics.
 * @action      Action expected from current function.
 * @svg_p       SVG specific parameters: Current graph number (.@graph_no),
 *              flag indicating that a restart record has been previously
 *              found (.@restart) and time used for the X axis origin
 *              (@ust_time_ref).
 * @itv         Interval of time in 1/100th of a second (only with F_MAIN action).
 * @record_hdr  Pointer on record header of current stats sample.
 ***************************************************************************
 */
__print_funct_t svg_print_net_eicmp_stats(struct activity *a, int curr, int action, struct svg_parm *svg_p,
                                          unsigned long long itv, struct record_header *record_hdr)
{
        struct stats_net_eicmp
                *sneic = (struct stats_net_eicmp *) a->buf[curr],
                *sneip = (struct stats_net_eicmp *) a->buf[!curr];
        int group[] = {2, 2, 2, 2, 2, 2};
        int g_type[] = {SVG_LINE_GRAPH, SVG_LINE_GRAPH, SVG_LINE_GRAPH,
                        SVG_LINE_GRAPH, SVG_LINE_GRAPH, SVG_LINE_GRAPH};
        char *title[] = {"ICMPv4 traffic errors statistics (1)", "ICMPv4 traffic errors statistics (2)",
                         "ICMPv4 traffic errors statistics (3)", "ICMPv4 traffic errors statistics (4)",
                         "ICMPv4 traffic errors statistics (5)", "ICMPv4 traffic errors statistics (6)"};
        char *g_title[] = {"ierr/s", "oerr/s",
                           "idstunr/s", "odstunr/s",
                           "itmex/s", "otmex/s",
                           "iparmpb/s", "oparmpb/s",
                           "isrcq/s", "osrcq/s",
                           "iredir/s", "oredir/s"};
        int g_fields[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11};
        static double *spmin, *spmax;
        static char **out;
        static int *outsize;

        if (action & F_BEGIN) {
                /*
                 * Allocate arrays that will contain the graphs data
                 * and the min/max values.
                 */
                out = allocate_graph_lines(12, &outsize, &spmin, &spmax);
        }

        if (action & F_MAIN) {
                /* Check for min/max values */
                save_extrema(a->gtypes_nr, (void *) a->buf[curr], (void *) a->buf[!curr],
                             itv, spmin, spmax, g_fields);

                /* ierr/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(sneip->InErrors, sneic->InErrors, itv),
                         out, outsize, svg_p->restart);
                /* oerr/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(sneip->OutErrors, sneic->OutErrors, itv),
                         out + 1, outsize + 1, svg_p->restart);
                /* idstunr/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(sneip->InDestUnreachs, sneic->InDestUnreachs, itv),
                         out + 2, outsize + 2, svg_p->restart);
                /* odstunr/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(sneip->OutDestUnreachs, sneic->OutDestUnreachs, itv),
                         out + 3, outsize + 3, svg_p->restart);
                /* itmex/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(sneip->InTimeExcds, sneic->InTimeExcds, itv),
                         out + 4, outsize + 4, svg_p->restart);
                /* otmex/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(sneip->OutTimeExcds, sneic->OutTimeExcds, itv),
                         out + 5, outsize + 5, svg_p->restart);
                /* iparmpb/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(sneip->InParmProbs, sneic->InParmProbs, itv),
                         out + 6, outsize + 6, svg_p->restart);
                /* oparmpb/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(sneip->OutParmProbs, sneic->OutParmProbs, itv),
                         out + 7, outsize + 7, svg_p->restart);
                /* isrcq/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(sneip->InSrcQuenchs, sneic->InSrcQuenchs, itv),
                         out + 8, outsize + 8, svg_p->restart);
                /* osrcq/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(sneip->OutSrcQuenchs, sneic->OutSrcQuenchs, itv),
                         out + 9, outsize + 9, svg_p->restart);
                /* iredir/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(sneip->InRedirects, sneic->InRedirects, itv),
                         out + 10, outsize + 10, svg_p->restart);
                /* oredir/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(sneip->OutRedirects, sneic->OutRedirects, itv),
                         out + 11, outsize + 11, svg_p->restart);
        }

        if (action & F_END) {
                draw_activity_graphs(a->g_nr, g_type, title, g_title, NULL, group,
                                     spmin, spmax, out, outsize, svg_p, record_hdr, FALSE, a->id, 0);

                /* Free remaining structures */
                free_graphs(out, outsize, spmin, spmax);
        }
}

/*
 ***************************************************************************
 * Display TCPv4 traffic statistics in SVG.
 *
 * IN:
 * @a           Activity structure with statistics.
 * @curr        Index in array for current sample statistics.
 * @action      Action expected from current function.
 * @svg_p       SVG specific parameters: Current graph number (.@graph_no),
 *              flag indicating that a restart record has been previously
 *              found (.@restart) and time used for the X axis origin
 *              (@ust_time_ref).
 * @itv         Interval of time in 1/100th of a second (only with F_MAIN action).
 * @record_hdr  Pointer on record header of current stats sample.
 ***************************************************************************
 */
__print_funct_t svg_print_net_tcp_stats(struct activity *a, int curr, int action, struct svg_parm *svg_p,
                                        unsigned long long itv, struct record_header *record_hdr)
{
        struct stats_net_tcp
                *sntc = (struct stats_net_tcp *) a->buf[curr],
                *sntp = (struct stats_net_tcp *) a->buf[!curr];
        int group[] = {2, 2};
        int g_type[] = {SVG_LINE_GRAPH, SVG_LINE_GRAPH};
        char *title[] = {"TCPv4 traffic statistics (1)", "TCPv4 traffic statistics (2)"};
        char *g_title[] = {"active/s", "passive/s",
                           "iseg/s", "oseg/s"};
        int g_fields[] = {0, 1, 2, 3};
        static double *spmin, *spmax;
        static char **out;
        static int *outsize;

        if (action & F_BEGIN) {
                /*
                 * Allocate arrays that will contain the graphs data
                 * and the min/max values.
                 */
                out = allocate_graph_lines(4, &outsize, &spmin, &spmax);
        }

        if (action & F_MAIN) {
                /* Check for min/max values */
                save_extrema(a->gtypes_nr, (void *) a->buf[curr], (void *) a->buf[!curr],
                             itv, spmin, spmax, g_fields);

                /* active/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(sntp->ActiveOpens, sntc->ActiveOpens, itv),
                         out, outsize, svg_p->restart);
                /* passive/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(sntp->PassiveOpens, sntc->PassiveOpens, itv),
                         out + 1, outsize + 1, svg_p->restart);
                /* iseg/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(sntp->InSegs, sntc->InSegs, itv),
                         out + 2, outsize + 2, svg_p->restart);
                /* oseg/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(sntp->OutSegs, sntc->OutSegs, itv),
                         out + 3, outsize + 3, svg_p->restart);
        }

        if (action & F_END) {
                draw_activity_graphs(a->g_nr, g_type, title, g_title, NULL, group,
                                     spmin, spmax, out, outsize, svg_p, record_hdr, FALSE, a->id, 0);

                /* Free remaining structures */
                free_graphs(out, outsize, spmin, spmax);
        }
}

/*
 ***************************************************************************
 * Display TCPv4 traffic errors statistics in SVG.
 *
 * IN:
 * @a           Activity structure with statistics.
 * @curr        Index in array for current sample statistics.
 * @action      Action expected from current function.
 * @svg_p       SVG specific parameters: Current graph number (.@graph_no),
 *              flag indicating that a restart record has been previously
 *              found (.@restart) and time used for the X axis origin
 *              (@ust_time_ref).
 * @itv         Interval of time in 1/100th of a second (only with F_MAIN action).
 * @record_hdr  Pointer on record header of current stats sample.
 ***************************************************************************
 */
__print_funct_t svg_print_net_etcp_stats(struct activity *a, int curr, int action, struct svg_parm *svg_p,
                                         unsigned long long itv, struct record_header *record_hdr)
{
        struct stats_net_etcp
                *snetc = (struct stats_net_etcp *) a->buf[curr],
                *snetp = (struct stats_net_etcp *) a->buf[!curr];
        int group[] = {2, 3};
        int g_type[] = {SVG_LINE_GRAPH, SVG_LINE_GRAPH};
        char *title[] = {"TCPv4 traffic errors statistics (1)", "TCPv4 traffic errors statistics (2)"};
        char *g_title[] = {"atmptf/s", "estres/s",
                           "retrans/s", "isegerr/s", "orsts/s"};
        int g_fields[] = {0, 1, 2, 3, 4};
        static double *spmin, *spmax;
        static char **out;
        static int *outsize;

        if (action & F_BEGIN) {
                /*
                 * Allocate arrays that will contain the graphs data
                 * and the min/max values.
                 */
                out = allocate_graph_lines(5, &outsize, &spmin, &spmax);
        }

        if (action & F_MAIN) {
                /* Check for min/max values */
                save_extrema(a->gtypes_nr, (void *) a->buf[curr], (void *) a->buf[!curr],
                             itv, spmin, spmax, g_fields);

                /* atmptf/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snetp->AttemptFails, snetc->AttemptFails, itv),
                         out, outsize, svg_p->restart);
                /* estres/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snetp->EstabResets, snetc->EstabResets, itv),
                         out + 1, outsize + 1, svg_p->restart);
                /* retrans/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snetp->RetransSegs, snetc->RetransSegs, itv),
                         out + 2, outsize + 2, svg_p->restart);
                /* isegerr/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snetp->InErrs, snetc->InErrs, itv),
                         out + 3, outsize + 3, svg_p->restart);
                /* orsts/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snetp->OutRsts, snetc->OutRsts, itv),
                         out + 4, outsize + 4, svg_p->restart);
        }

        if (action & F_END) {
                draw_activity_graphs(a->g_nr, g_type, title, g_title, NULL, group,
                                     spmin, spmax, out, outsize, svg_p, record_hdr, FALSE, a->id, 0);

                /* Free remaining structures */
                free_graphs(out, outsize, spmin, spmax);
        }
}

/*
 ***************************************************************************
 * Display UDPv4 traffic statistics in SVG.
 *
 * IN:
 * @a           Activity structure with statistics.
 * @curr        Index in array for current sample statistics.
 * @action      Action expected from current function.
 * @svg_p       SVG specific parameters: Current graph number (.@graph_no),
 *              flag indicating that a restart record has been previously
 *              found (.@restart) and time used for the X axis origin
 *              (@ust_time_ref).
 * @itv         Interval of time in 1/100th of a second (only with F_MAIN action).
 * @record_hdr  Pointer on record header of current stats sample.
 ***************************************************************************
 */
__print_funct_t svg_print_net_udp_stats(struct activity *a, int curr, int action, struct svg_parm *svg_p,
                                        unsigned long long itv, struct record_header *record_hdr)
{
        struct stats_net_udp
                *snuc = (struct stats_net_udp *) a->buf[curr],
                *snup = (struct stats_net_udp *) a->buf[!curr];
        int group[] = {2, 2};
        int g_type[] = {SVG_LINE_GRAPH, SVG_LINE_GRAPH};
        char *title[] = {"UDPv4 traffic statistics (1)", "UDPv4 traffic statistics (2)"};
        char *g_title[] = {"idgm/s", "odgm/s",
                           "noport/s", "idgmerr/s"};
        int g_fields[] = {0, 1, 2, 3};
        static double *spmin, *spmax;
        static char **out;
        static int *outsize;

        if (action & F_BEGIN) {
                /*
                 * Allocate arrays that will contain the graphs data
                 * and the min/max values.
                 */
                out = allocate_graph_lines(4, &outsize, &spmin, &spmax);
        }

        if (action & F_MAIN) {
                /* Check for min/max values */
                save_extrema(a->gtypes_nr, (void *) a->buf[curr], (void *) a->buf[!curr],
                             itv, spmin, spmax, g_fields);

                /* idgm/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snup->InDatagrams, snuc->InDatagrams, itv),
                         out, outsize, svg_p->restart);
                /* odgm/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snup->OutDatagrams, snuc->OutDatagrams, itv),
                         out + 1, outsize + 1, svg_p->restart);
                /* noport/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snup->NoPorts, snuc->NoPorts, itv),
                         out + 2, outsize + 2, svg_p->restart);
                /* idgmerr/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snup->InErrors, snuc->InErrors, itv),
                         out + 3, outsize + 3, svg_p->restart);
        }

        if (action & F_END) {
                draw_activity_graphs(a->g_nr, g_type, title, g_title, NULL, group,
                                     spmin, spmax, out, outsize, svg_p, record_hdr, FALSE, a->id, 0);

                /* Free remaining structures */
                free_graphs(out, outsize, spmin, spmax);
        }
}

/*
 ***************************************************************************
 * Display IPV6 socket statistics in SVG.
 *
 * IN:
 * @a           Activity structure with statistics.
 * @curr        Index in array for current sample statistics.
 * @action      Action expected from current function.
 * @svg_p       SVG specific parameters: Current graph number (.@graph_no),
 *              flag indicating that a restart record has been previously
 *              found (.@restart) and time used for the X axis origin
 *              (@ust_time_ref).
 * @itv         Interval of time in 1/100th of a second (only with F_MAIN action).
 * @record_hdr  Pointer on record header of current stats sample.
 ***************************************************************************
 */
__print_funct_t svg_print_net_sock6_stats(struct activity *a, int curr, int action, struct svg_parm *svg_p,
                                          unsigned long long itv, struct record_header *record_hdr)
{
        struct stats_net_sock6
                *snsc = (struct stats_net_sock6 *) a->buf[curr];
        int group[] = {4};
        int g_type[] = {SVG_LINE_GRAPH};
        char *title[] = {"IPv6 sockets statistics"};
        char *g_title[] = {"~tcp6sck", "~udp6sck", "~raw6sck", "~ip6-frag"};
        int g_fields[] = {0, 1, 2, 3};
        static double *spmin, *spmax;
        static char **out;
        static int *outsize;

        if (action & F_BEGIN) {
                /*
                 * Allocate arrays that will contain the graphs data
                 * and the min/max values.
                 */
                out = allocate_graph_lines(4, &outsize, &spmin, &spmax);
        }

        if (action & F_MAIN) {
                /* Check for min/max values */
                save_extrema(a->gtypes_nr, (void *) a->buf[curr], NULL,
                             itv, spmin, spmax, g_fields);
                /* tcp6sck */
                lniappend(record_hdr->ust_time - svg_p->ust_time_ref,
                          (unsigned long long) snsc->tcp6_inuse,
                          out, outsize, svg_p->restart);
                /* udp6sck */
                lniappend(record_hdr->ust_time - svg_p->ust_time_ref,
                          (unsigned long long) snsc->udp6_inuse,
                          out + 1, outsize + 1, svg_p->restart);
                /* raw6sck */
                lniappend(record_hdr->ust_time - svg_p->ust_time_ref,
                          (unsigned long long) snsc->raw6_inuse,
                          out + 2, outsize + 2, svg_p->restart);
                /* ip6-frag */
                lniappend(record_hdr->ust_time - svg_p->ust_time_ref,
                          (unsigned long long) snsc->frag6_inuse,
                          out + 3, outsize + 3, svg_p->restart);
        }

        if (action & F_END) {
                draw_activity_graphs(a->g_nr, g_type, title, g_title, NULL, group,
                                     spmin, spmax, out, outsize, svg_p, record_hdr, FALSE, a->id, 0);

                /* Free remaining structures */
                free_graphs(out, outsize, spmin, spmax);
        }
}

/*
 ***************************************************************************
 * Display IPv6 traffic statistics in SVG.
 *
 * IN:
 * @a           Activity structure with statistics.
 * @curr        Index in array for current sample statistics.
 * @action      Action expected from current function.
 * @svg_p       SVG specific parameters: Current graph number (.@graph_no),
 *              flag indicating that a restart record has been previously
 *              found (.@restart) and time used for the X axis origin
 *              (@ust_time_ref).
 * @itv         Interval of time in 1/100th of a second (only with F_MAIN action).
 * @record_hdr  Pointer on record header of current stats sample.
 ***************************************************************************
 */
__print_funct_t svg_print_net_ip6_stats(struct activity *a, int curr, int action, struct svg_parm *svg_p,
                                        unsigned long long itv, struct record_header *record_hdr)
{
        struct stats_net_ip6
                *snic = (struct stats_net_ip6 *) a->buf[curr],
                *snip = (struct stats_net_ip6 *) a->buf[!curr];
        int group[] = {4, 2, 2, 2};
        int g_type[] = {SVG_LINE_GRAPH, SVG_LINE_GRAPH, SVG_LINE_GRAPH,
                        SVG_LINE_GRAPH};
        char *title[] = {"IPv6 traffic statistics (1)", "IPv6 traffic statistics (2)",
                         "IPv6 traffic statistics (3)", "IPv6 traffic statistics (4)"};
        char *g_title[] = {"irec6/s", "fwddgm6/s", "idel6/s", "orq6/s",
                           "asmrq6/s", "asmok6/s",
                           "imcpck6/s", "omcpck6/s",
                           "fragok6/s", "fragcr6/s"};
        int g_fields[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9};
        static double *spmin, *spmax;
        static char **out;
        static int *outsize;

        if (action & F_BEGIN) {
                /*
                 * Allocate arrays that will contain the graphs data
                 * and the min/max values.
                 */
                out = allocate_graph_lines(10, &outsize, &spmin, &spmax);
        }

        if (action & F_MAIN) {
                /* Check for min/max values */
                save_extrema(a->gtypes_nr, (void *) a->buf[curr], (void *) a->buf[!curr],
                             itv, spmin, spmax, g_fields);

                /* irec6/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snip->InReceives6, snic->InReceives6, itv),
                         out, outsize, svg_p->restart);
                /* fwddgm6/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snip->OutForwDatagrams6, snic->OutForwDatagrams6, itv),
                         out + 1, outsize + 1, svg_p->restart);
                /* idel6/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snip->InDelivers6, snic->InDelivers6, itv),
                         out + 2, outsize + 2, svg_p->restart);
                /* orq6/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snip->OutRequests6, snic->OutRequests6, itv),
                         out + 3, outsize + 3, svg_p->restart);
                /* asmrq6/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snip->ReasmReqds6, snic->ReasmReqds6, itv),
                         out + 4, outsize + 4, svg_p->restart);
                /* asmok6/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snip->ReasmOKs6, snic->ReasmOKs6, itv),
                         out + 5, outsize + 5, svg_p->restart);
                /* imcpck6/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snip->InMcastPkts6, snic->InMcastPkts6, itv),
                         out + 6, outsize + 6, svg_p->restart);
                /* omcpck6/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snip->OutMcastPkts6, snic->OutMcastPkts6, itv),
                         out + 7, outsize + 7, svg_p->restart);
                /* fragok6/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snip->FragOKs6, snic->FragOKs6, itv),
                         out + 8, outsize + 8, svg_p->restart);
                /* fragcr6/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snip->FragCreates6, snic->FragCreates6, itv),
                         out + 9, outsize + 9, svg_p->restart);
        }

        if (action & F_END) {
                draw_activity_graphs(a->g_nr, g_type, title, g_title, NULL, group,
                                     spmin, spmax, out, outsize, svg_p, record_hdr, FALSE, a->id, 0);

                /* Free remaining structures */
                free_graphs(out, outsize, spmin, spmax);
        }
}

/*
 ***************************************************************************
 * Display IPv6 traffic errors statistics in SVG.
 *
 * IN:
 * @a           Activity structure with statistics.
 * @curr        Index in array for current sample statistics.
 * @action      Action expected from current function.
 * @svg_p       SVG specific parameters: Current graph number (.@graph_no),
 *              flag indicating that a restart record has been previously
 *              found (.@restart) and time used for the X axis origin
 *              (@ust_time_ref).
 * @itv         Interval of time in 1/100th of a second (only with F_MAIN action).
 * @record_hdr  Pointer on record header of current stats sample.
 ***************************************************************************
 */
__print_funct_t svg_print_net_eip6_stats(struct activity *a, int curr, int action, struct svg_parm *svg_p,
                                         unsigned long long itv, struct record_header *record_hdr)
{
        struct stats_net_eip6
                *sneic = (struct stats_net_eip6 *) a->buf[curr],
                *sneip = (struct stats_net_eip6 *) a->buf[!curr];
        int group[] = {4, 2, 2, 3};
        int g_type[] = {SVG_LINE_GRAPH, SVG_LINE_GRAPH, SVG_LINE_GRAPH,
                        SVG_LINE_GRAPH};
        char *title[] = {"IPv6 traffic errors statistics (1)", "IPv6 traffic errors statistics (2)",
                         "IPv6 traffic errors statistics (3)", "IPv6 traffic errors statistics (4)",
                         "IPv6 traffic errors statistics (5)"};
        char *g_title[] = {"ihdrer6/s", "iadrer6/s", "iukwnp6/s", "i2big6/s",
                           "idisc6/s", "odisc6/s",
                           "inort6/s", "onort6/s",
                           "asmf6/s", "fragf6/s", "itrpck6/s"};
        int g_fields[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
        static double *spmin, *spmax;
        static char **out;
        static int *outsize;

        if (action & F_BEGIN) {
                /*
                 * Allocate arrays that will contain the graphs data
                 * and the min/max values.
                 */
                out = allocate_graph_lines(11, &outsize, &spmin, &spmax);
        }

        if (action & F_MAIN) {
                /* Check for min/max values */
                save_extrema(a->gtypes_nr, (void *) a->buf[curr], (void *) a->buf[!curr],
                             itv, spmin, spmax, g_fields);

                /* ihdrer6/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(sneip->InHdrErrors6, sneic->InHdrErrors6, itv),
                         out, outsize, svg_p->restart);
                /* iadrer6/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(sneip->InAddrErrors6, sneic->InAddrErrors6, itv),
                         out + 1, outsize + 1, svg_p->restart);
                /* iukwnp6/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(sneip->InUnknownProtos6, sneic->InUnknownProtos6, itv),
                         out + 2, outsize + 2, svg_p->restart);
                /* i2big6/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(sneip->InTooBigErrors6, sneic->InTooBigErrors6, itv),
                         out + 3, outsize + 3, svg_p->restart);
                /* idisc6/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(sneip->InDiscards6, sneic->InDiscards6, itv),
                         out + 4, outsize + 4, svg_p->restart);
                /* odisc6/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(sneip->OutDiscards6, sneic->OutDiscards6, itv),
                         out + 5, outsize + 5, svg_p->restart);
                /* inort6/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(sneip->InNoRoutes6, sneic->InNoRoutes6, itv),
                         out + 6, outsize + 6, svg_p->restart);
                /* onort6/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(sneip->OutNoRoutes6, sneic->OutNoRoutes6, itv),
                         out + 7, outsize + 7, svg_p->restart);
                /* asmf6/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(sneip->ReasmFails6, sneic->ReasmFails6, itv),
                         out + 8, outsize + 8, svg_p->restart);
                /* fragf6/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(sneip->FragFails6, sneic->FragFails6, itv),
                         out + 9, outsize + 9, svg_p->restart);
                /* itrpck6/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(sneip->InTruncatedPkts6, sneic->InTruncatedPkts6, itv),
                         out + 10, outsize + 10, svg_p->restart);
        }

        if (action & F_END) {
                draw_activity_graphs(a->g_nr, g_type, title, g_title, NULL, group,
                                     spmin, spmax, out, outsize, svg_p, record_hdr, FALSE, a->id, 0);

                /* Free remaining structures */
                free_graphs(out, outsize, spmin, spmax);
        }
}

/*
 ***************************************************************************
 * Display ICMPv6 traffic statistics in SVG.
 *
 * IN:
 * @a           Activity structure with statistics.
 * @curr        Index in array for current sample statistics.
 * @action      Action expected from current function.
 * @svg_p       SVG specific parameters: Current graph number (.@graph_no),
 *              flag indicating that a restart record has been previously
 *              found (.@restart) and time used for the X axis origin
 *              (@ust_time_ref).
 * @itv         Interval of time in 1/100th of a second (only with F_MAIN action).
 * @record_hdr  Pointer on record header of current stats sample.
 ***************************************************************************
 */
__print_funct_t svg_print_net_icmp6_stats(struct activity *a, int curr, int action, struct svg_parm *svg_p,
                                          unsigned long long itv, struct record_header *record_hdr)
{
        struct stats_net_icmp6
                *snic = (struct stats_net_icmp6 *) a->buf[curr],
                *snip = (struct stats_net_icmp6 *) a->buf[!curr];
        int group[] = {2, 3, 5, 3, 4};
        int g_type[] = {SVG_LINE_GRAPH, SVG_LINE_GRAPH, SVG_LINE_GRAPH,
                        SVG_LINE_GRAPH, SVG_LINE_GRAPH};
        char *title[] = {"ICMPv6 traffic statistics (1)", "ICMPv6 traffic statistics (2)",
                         "ICMPv6 traffic statistics (3)", "ICMPv6 traffic statistics (4)",
                         "ICMPv6 traffic statistics (5)"};
        char *g_title[] = {"imsg6/s", "omsg6/s",
                           "iech6/s", "iechr6/s", "oechr6/s",
                           "igmbq6/s", "igmbr6/s", "ogmbr6/s", "igmbrd6/s", "ogmbrd6/s",
                           "irtsol6/s", "ortsol6/s", "irtad6/s",
                           "inbsol6/s", "onbsol6/s", "inbad6/s", "onbad6/s"};
        int g_fields[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16};
        static double *spmin, *spmax;
        static char **out;
        static int *outsize;

        if (action & F_BEGIN) {
                /*
                 * Allocate arrays that will contain the graphs data
                 * and the min/max values.
                 */
                out = allocate_graph_lines(17, &outsize, &spmin, &spmax);
        }

        if (action & F_MAIN) {
                /* Check for min/max values */
                save_extrema(a->gtypes_nr, (void *) a->buf[curr], (void *) a->buf[!curr],
                             itv, spmin, spmax, g_fields);

                /* imsg6/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snip->InMsgs6, snic->InMsgs6, itv),
                         out, outsize, svg_p->restart);
                /* omsg6/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snip->OutMsgs6, snic->OutMsgs6, itv),
                         out + 1, outsize + 1, svg_p->restart);
                /* iech6/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snip->InEchos6, snic->InEchos6, itv),
                         out + 2, outsize + 2, svg_p->restart);
                /* iechr6/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snip->InEchoReplies6, snic->InEchoReplies6, itv),
                         out + 3, outsize + 3, svg_p->restart);
                /* oechr6/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snip->OutEchoReplies6, snic->OutEchoReplies6, itv),
                         out + 4, outsize + 4, svg_p->restart);
                /* igmbq6/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snip->InGroupMembQueries6, snic->InGroupMembQueries6, itv),
                         out + 5, outsize + 5, svg_p->restart);
                /* igmbr6/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snip->InGroupMembResponses6, snic->InGroupMembResponses6, itv),
                         out + 6, outsize + 6, svg_p->restart);
                /* ogmbr6/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snip->OutGroupMembResponses6, snic->OutGroupMembResponses6, itv),
                         out + 7, outsize + 7, svg_p->restart);
                /* igmbrd6/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snip->InGroupMembReductions6, snic->InGroupMembReductions6, itv),
                         out + 8, outsize + 8, svg_p->restart);
                /* ogmbrd6/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snip->OutGroupMembReductions6, snic->OutGroupMembReductions6, itv),
                         out + 9, outsize + 9, svg_p->restart);
                /* irtsol6/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snip->InRouterSolicits6, snic->InRouterSolicits6, itv),
                         out + 10, outsize + 10, svg_p->restart);
                /* ortsol6/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snip->OutRouterSolicits6, snic->OutRouterSolicits6, itv),
                         out + 11, outsize + 11, svg_p->restart);
                /* irtad6/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snip->InRouterAdvertisements6, snic->InRouterAdvertisements6, itv),
                         out + 12, outsize + 12, svg_p->restart);
                /* inbsol6/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snip->InNeighborSolicits6, snic->InNeighborSolicits6, itv),
                         out + 13, outsize + 13, svg_p->restart);
                /* onbsol6/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snip->OutNeighborSolicits6, snic->OutNeighborSolicits6, itv),
                         out + 14, outsize + 14, svg_p->restart);
                /* inbad6/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snip->InNeighborAdvertisements6, snic->InNeighborAdvertisements6, itv),
                         out + 15, outsize + 15, svg_p->restart);
                /* onbad6/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snip->OutNeighborAdvertisements6, snic->OutNeighborAdvertisements6, itv),
                         out + 16, outsize + 16, svg_p->restart);
        }

        if (action & F_END) {
                draw_activity_graphs(a->g_nr, g_type, title, g_title, NULL, group,
                                     spmin, spmax, out, outsize, svg_p, record_hdr, FALSE, a->id, 0);

                /* Free remaining structures */
                free_graphs(out, outsize, spmin, spmax);
        }
}

/*
 ***************************************************************************
 * Display ICMPv6 traffic errors statistics in SVG.
 *
 * IN:
 * @a           Activity structure with statistics.
 * @curr        Index in array for current sample statistics.
 * @action      Action expected from current function.
 * @svg_p       SVG specific parameters: Current graph number (.@graph_no),
 *              flag indicating that a restart record has been previously
 *              found (.@restart) and time used for the X axis origin
 *              (@ust_time_ref).
 * @itv         Interval of time in 1/100th of a second (only with F_MAIN action).
 * @record_hdr  Pointer on record header of current stats sample.
 ***************************************************************************
 */
__print_funct_t svg_print_net_eicmp6_stats(struct activity *a, int curr, int action, struct svg_parm *svg_p,
                                           unsigned long long itv, struct record_header *record_hdr)
{
        struct stats_net_eicmp6
                *sneic = (struct stats_net_eicmp6 *) a->buf[curr],
                *sneip = (struct stats_net_eicmp6 *) a->buf[!curr];
        int group[] = {1, 2, 2, 2, 2, 2};
        int g_type[] = {SVG_LINE_GRAPH, SVG_LINE_GRAPH, SVG_LINE_GRAPH,
                        SVG_LINE_GRAPH, SVG_LINE_GRAPH, SVG_LINE_GRAPH};
        char *title[] = {"ICMPv6 traffic errors statistics (1)", "ICMPv6 traffic errors statistics (2)",
                         "ICMPv6 traffic errors statistics (3)", "ICMPv6 traffic errors statistics (4)",
                         "ICMPv6 traffic errors statistics (5)", "ICMPv6 traffic errors statistics (6)"};
        char *g_title[] = {"ierr6/s",
                           "idtunr6/s", "odtunr6/s",
                           "itmex6/s", "otmex6/s",
                           "iprmpb6/s", "oprmpb6/s",
                           "iredir6/s", "oredir6/s",
                           "ipck2b6/s", "opck2b6/s"};
        int g_fields[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
        static double *spmin, *spmax;
        static char **out;
        static int *outsize;

        if (action & F_BEGIN) {
                /*
                 * Allocate arrays that will contain the graphs data
                 * and the min/max values.
                 */
                out = allocate_graph_lines(11, &outsize, &spmin, &spmax);
        }

        if (action & F_MAIN) {
                /* Check for min/max values */
                save_extrema(a->gtypes_nr, (void *) a->buf[curr], (void *) a->buf[!curr],
                             itv, spmin, spmax, g_fields);

                /* ierr6/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(sneip->InErrors6, sneic->InErrors6, itv),
                         out, outsize, svg_p->restart);
                /* idtunr6/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(sneip->InDestUnreachs6, sneic->InDestUnreachs6, itv),
                         out + 1, outsize + 1, svg_p->restart);
                /* odtunr6/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(sneip->OutDestUnreachs6, sneic->OutDestUnreachs6, itv),
                         out + 2, outsize + 2, svg_p->restart);
                /* itmex6/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(sneip->InTimeExcds6, sneic->InTimeExcds6, itv),
                         out + 3, outsize + 3, svg_p->restart);
                /* otmex6/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(sneip->OutTimeExcds6, sneic->OutTimeExcds6, itv),
                         out + 4, outsize + 4, svg_p->restart);
                /* iprmpb6/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(sneip->InParmProblems6, sneic->InParmProblems6, itv),
                         out + 5, outsize + 5, svg_p->restart);
                /* oprmpb6/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(sneip->OutParmProblems6, sneic->OutParmProblems6, itv),
                         out + 6, outsize + 6, svg_p->restart);
                /* iredir6/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(sneip->InRedirects6, sneic->InRedirects6, itv),
                         out + 7, outsize + 7, svg_p->restart);
                /* oredir6/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(sneip->OutRedirects6, sneic->OutRedirects6, itv),
                         out + 8, outsize + 8, svg_p->restart);
                /* ipck2b6/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(sneip->InPktTooBigs6, sneic->InPktTooBigs6, itv),
                         out + 9, outsize + 9, svg_p->restart);
                /* opck2b6/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(sneip->OutPktTooBigs6, sneic->OutPktTooBigs6, itv),
                         out + 10, outsize + 10, svg_p->restart);
        }

        if (action & F_END) {
                draw_activity_graphs(a->g_nr, g_type, title, g_title, NULL, group,
                                     spmin, spmax, out, outsize, svg_p, record_hdr, FALSE, a->id, 0);

                /* Free remaining structures */
                free_graphs(out, outsize, spmin, spmax);
        }
}

/*
 ***************************************************************************
 * Display UDPv6 traffic statistics in SVG.
 *
 * IN:
 * @a           Activity structure with statistics.
 * @curr        Index in array for current sample statistics.
 * @action      Action expected from current function.
 * @svg_p       SVG specific parameters: Current graph number (.@graph_no),
 *              flag indicating that a restart record has been previously
 *              found (.@restart) and time used for the X axis origin
 *              (@ust_time_ref).
 * @itv         Interval of time in 1/100th of a second (only with F_MAIN action).
 * @record_hdr  Pointer on record header of current stats sample.
 ***************************************************************************
 */
__print_funct_t svg_print_net_udp6_stats(struct activity *a, int curr, int action, struct svg_parm *svg_p,
                                         unsigned long long itv, struct record_header *record_hdr)
{
        struct stats_net_udp6
                *snuc = (struct stats_net_udp6 *) a->buf[curr],
                *snup = (struct stats_net_udp6 *) a->buf[!curr];
        int group[] = {2, 2};
        int g_type[] = {SVG_LINE_GRAPH, SVG_LINE_GRAPH};
        char *title[] = {"UDPv6 traffic statistics (1)", "UDPv6 traffic statistics (2)"};
        char *g_title[] = {"idgm6/s", "odgm6/s",
                           "noport6/s", "idgmer6/s"};
        int g_fields[] = {0, 1, 2, 3};
        static double *spmin, *spmax;
        static char **out;
        static int *outsize;

        if (action & F_BEGIN) {
                /*
                 * Allocate arrays that will contain the graphs data
                 * and the min/max values.
                 */
                out = allocate_graph_lines(4, &outsize, &spmin, &spmax);
        }

        if (action & F_MAIN) {
                /* Check for min/max values */
                save_extrema(a->gtypes_nr, (void *) a->buf[curr], (void *) a->buf[!curr],
                             itv, spmin, spmax, g_fields);

                /* idgm6/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snup->InDatagrams6, snuc->InDatagrams6, itv),
                         out, outsize, svg_p->restart);
                /* odgm6/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snup->OutDatagrams6, snuc->OutDatagrams6, itv),
                         out + 1, outsize + 1, svg_p->restart);
                /* noport6/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snup->NoPorts6, snuc->NoPorts6, itv),
                         out + 2, outsize + 2, svg_p->restart);
                /* idgmer6/s */
                lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         S_VALUE(snup->InErrors6, snuc->InErrors6, itv),
                         out + 3, outsize + 3, svg_p->restart);
        }

        if (action & F_END) {
                draw_activity_graphs(a->g_nr, g_type, title, g_title, NULL, group,
                                     spmin, spmax, out, outsize, svg_p, record_hdr, FALSE, a->id, 0);

                /* Free remaining structures */
                free_graphs(out, outsize, spmin, spmax);
        }
}

/*
 ***************************************************************************
 * Display CPU frequency statistics in SVG.
 *
 * IN:
 * @a           Activity structure with statistics.
 * @curr        Index in array for current sample statistics.
 * @action      Action expected from current function.
 * @svg_p       SVG specific parameters: Current graph number (.@graph_no),
 *              flag indicating that a restart record has been previously
 *              found (.@restart) and time used for the X axis origin
 *              (@ust_time_ref).
 * @itv         Interval of time in 1/100th of a second (unused here).
 * @record_hdr  Pointer on record header of current stats sample.
 ***************************************************************************
 */
__print_funct_t svg_print_pwr_cpufreq_stats(struct activity *a, int curr, int action, struct svg_parm *svg_p,
                                            unsigned long long itv, struct record_header *record_hdr)
{
        struct stats_pwr_cpufreq *spc, *spp;
        int group[] = {1};
        int g_type[] = {SVG_LINE_GRAPH};
        char *title[] = {"CPU clock frequency"};
        char *g_title[] = {"MHz"};
        static double *spmin, *spmax;
        static char **out;
        static int *outsize;
        char item_name[8];
        int i;

        if (action & F_BEGIN) {
                /*
                 * Allocate arrays that will contain the graphs data
                 * and the min/max values.
                 */
                out = allocate_graph_lines(a->item_list_sz, &outsize, &spmin, &spmax);
        }

        if (action & F_MAIN) {
                /* For each CPU */
                for (i = 0; (i < a->nr[curr]) && (i < a->bitmap->b_size + 1); i++) {

                        spc = (struct stats_pwr_cpufreq *) ((char *) a->buf[curr]  + i * a->msize);
                        spp = (struct stats_pwr_cpufreq *) ((char *) a->buf[!curr] + i * a->msize);

                        /* Should current CPU (including CPU "all") be displayed? */
                        if (!(a->bitmap->b_array[i >> 3] & (1 << (i & 0x07))))
                                /* No */
                                continue;

                        /*
                         * Note: Don't skip offline CPU here as it is needed
                         * to make the graph go though 0.
                         */

                        /* MHz */
                        recappend(record_hdr->ust_time - svg_p->ust_time_ref,
                                  ((double) spp->cpufreq) / 100,
                                  ((double) spc->cpufreq) / 100,
                                  out + i, outsize + i, svg_p->restart, svg_p->dt,
                                  spmin + i, spmax + i);
                }
        }

        if (action & F_END) {
                int xid = 0;

                for (i = 0; (i < a->item_list_sz) && (i < a->bitmap->b_size + 1); i++) {

                        /* Should current CPU (including CPU "all") be displayed? */
                        if (!(a->bitmap->b_array[i >> 3] & (1 << (i & 0x07))))
                                /* No */
                                continue;

                        if (!i) {
                                /* This is CPU "all" */
                                strcpy(item_name, "all");
                        }
                        else {
                                /*
                                 * If the maximum frequency reached by the CPU is 0, then
                                 * the CPU has been offline on the whole period.
                                 * => Don't display it.
                                 */
                                if (*(spmax + i) == 0)
                                        continue;

                                sprintf(item_name, "%d", i - 1);
                        }

                        if (draw_activity_graphs(a->g_nr, g_type,
                                                 title, g_title, item_name, group,
                                                 spmin + i, spmax + i, out + i, outsize + i,
                                                 svg_p, record_hdr, i, a->id, xid)) {
                                xid++;
                        }
                }

                /* Free remaining structures */
                free_graphs(out, outsize, spmin, spmax);
        }
}

/*
 ***************************************************************************
 * Display fan statistics in SVG.
 *
 * IN:
 * @a           Activity structure with statistics.
 * @curr        Index in array for current sample statistics.
 * @action      Action expected from current function.
 * @svg_p       SVG specific parameters: Current graph number (.@graph_no),
 *              flag indicating that a restart record has been previously
 *              found (.@restart) and time used for the X axis origin
 *              (@ust_time_ref).
 * @itv         Interval of time in 1/100th of a second (unused here).
 * @record_hdr  Pointer on record header of current stats sample.
 ***************************************************************************
 */
__print_funct_t svg_print_pwr_fan_stats(struct activity *a, int curr, int action, struct svg_parm *svg_p,
                                        unsigned long long itv, struct record_header *record_hdr)
{
        struct stats_pwr_fan *spc, *spp;
        int group[] = {1};
        int g_type[] = {SVG_LINE_GRAPH};
        char *title[] = {"Fans speed"};
        char *g_title[] = {"~rpm"};
        static double *spmin, *spmax;
        static char **out;
        static int *outsize;
        char item_name[MAX_SENSORS_DEV_LEN + 8];
        int i;

        if (action & F_BEGIN) {
                /*
                 * Allocate arrays that will contain the graphs data
                 * and the min/max values.
                 */
                out = allocate_graph_lines(a->item_list_sz, &outsize, &spmin, &spmax);
        }

        if (action & F_MAIN) {
                /* For each fan */
                for (i = 0; i < a->nr[curr]; i++) {

                        spc = (struct stats_pwr_fan *) ((char *) a->buf[curr]  + i * a->msize);
                        spp = (struct stats_pwr_fan *) ((char *) a->buf[!curr] + i * a->msize);

                        /* rpm */
                        recappend(record_hdr->ust_time - svg_p->ust_time_ref,
                                  (double) spp->rpm,
                                  (double) spc->rpm,
                                  out + i, outsize + i, svg_p->restart, svg_p->dt,
                                  spmin + i, spmax + i);
                }
        }

        if (action & F_END) {
                int xid = 0;

                for (i = 0; i < a->item_list_sz; i++) {

                        spc = (struct stats_pwr_fan *) ((char *) a->buf[curr] + i * a->msize);

                        snprintf(item_name, MAX_SENSORS_DEV_LEN + 8, "%d: %s", i + 1, spc->device);
                        item_name[MAX_SENSORS_DEV_LEN + 7] = '\0';

                        if (draw_activity_graphs(a->g_nr, g_type,
                                                 title, g_title, item_name, group,
                                                 spmin + i, spmax + i, out + i, outsize + i,
                                                 svg_p, record_hdr, FALSE, a->id, xid)) {
                                xid++;
                        }
                }

                /* Free remaining structures */
                free_graphs(out, outsize, spmin, spmax);
        }
}

/*
 ***************************************************************************
 * Display temperature statistics in SVG.
 *
 * IN:
 * @a           Activity structure with statistics.
 * @curr        Index in array for current sample statistics.
 * @action      Action expected from current function.
 * @svg_p       SVG specific parameters: Current graph number (.@graph_no),
 *              flag indicating that a restart record has been previously
 *              found (.@restart) and time used for the X axis origin
 *              (@ust_time_ref).
 * @itv         Interval of time in 1/100th of a second (unused here).
 * @record_hdr  Pointer on record header of current stats sample.
 ***************************************************************************
 */
__print_funct_t svg_print_pwr_temp_stats(struct activity *a, int curr, int action, struct svg_parm *svg_p,
                                         unsigned long long itv, struct record_header *record_hdr)
{
        struct stats_pwr_temp *spc;
        int group[] = {1, 1};
        int g_type[] = {SVG_LINE_GRAPH, SVG_BAR_GRAPH};
        char *title[] = {"Devices temperature (1)",
                         "Devices temperature (2)"};
        char *g_title[] = {"~degC",
                           "%temp"};
        static double *spmin, *spmax;
        static char **out;
        static int *outsize;
        char item_name[MAX_SENSORS_DEV_LEN + 8];
        int i;
        double tval;

        if (action & F_BEGIN) {
                /*
                 * Allocate arrays that will contain the graphs data
                 * and the min/max values.
                 */
                out = allocate_graph_lines(2 * a->item_list_sz, &outsize, &spmin, &spmax);
        }

        if (action & F_MAIN) {
                /* For each temperature sensor */
                for (i = 0; i < a->nr[curr]; i++) {

                        spc = (struct stats_pwr_temp *) ((char *) a->buf[curr] + i * a->msize);

                        /* Look for min/max values */
                        if (spc->temp < *(spmin + 2 * i)) {
                                *(spmin + 2 * i) = spc->temp;
                        }
                        if (spc->temp > *(spmax + 2 * i)) {
                                *(spmax + 2 * i) = spc->temp;
                        }
                        tval = (spc->temp_max - spc->temp_min) ?
                               (spc->temp - spc->temp_min) / (spc->temp_max - spc->temp_min) * 100 :
                               0.0;
                        if (tval < *(spmin + 2 * i + 1)) {
                                *(spmin + 2 * i + 1) = tval;
                        }
                        if (tval > *(spmax + 2 * i + 1)) {
                                *(spmax + 2 * i + 1) = tval;
                        }

                        /* degC */
                        lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                                 (double) spc->temp,
                                 out + 2 * i, outsize + 2 * i, svg_p->restart);
                        /* %temp */
                        brappend(record_hdr->ust_time - svg_p->ust_time_ref,
                                 0.0, tval,
                                 out + 2 * i + 1, outsize + 2 * i + 1, svg_p->dt);
                }
        }

        if (action & F_END) {
                int xid = 0;

                for (i = 0; i < a->item_list_sz; i++) {

                        spc = (struct stats_pwr_temp *) ((char *) a->buf[curr] + i * a->msize);

                        snprintf(item_name, MAX_SENSORS_DEV_LEN + 8, "%d: %s", i + 1, spc->device);
                        item_name[MAX_SENSORS_DEV_LEN + 7] = '\0';

                        if (draw_activity_graphs(a->g_nr, g_type,
                                                 title, g_title, item_name, group,
                                                 spmin + 2 * i, spmax + 2 * i, out + 2 * i, outsize + 2 * i,
                                                 svg_p, record_hdr, FALSE, a->id, xid)) {
                                xid++;
                        }
                }

                /* Free remaining structures */
                free_graphs(out, outsize, spmin, spmax);
        }
}

/*
 ***************************************************************************
 * Display voltage inputs statistics in SVG.
 *
 * IN:
 * @a           Activity structure with statistics.
 * @curr        Index in array for current sample statistics.
 * @action      Action expected from current function.
 * @svg_p       SVG specific parameters: Current graph number (.@graph_no),
 *              flag indicating that a restart record has been previously
 *              found (.@restart) and time used for the X axis origin
 *              (@ust_time_ref).
 * @itv         Interval of time in 1/100th of a second (only with F_MAIN action).
 * @record_hdr  Pointer on record header of current stats sample.
 ***************************************************************************
 */
__print_funct_t svg_print_pwr_in_stats(struct activity *a, int curr, int action, struct svg_parm *svg_p,
                                       unsigned long long itv, struct record_header *record_hdr)
{
        struct stats_pwr_in *spc;
        int group[] = {1, 1};
        int g_type[] = {SVG_LINE_GRAPH, SVG_BAR_GRAPH};
        char *title[] = {"Voltage inputs statistics (1)",
                         "Voltage inputs statistics (2)"};
        char *g_title[] = {"inV",
                           "%in"};
        static double *spmin, *spmax;
        static char **out;
        static int *outsize;
        char item_name[MAX_SENSORS_DEV_LEN + 8];
        int i;
        double tval;

        if (action & F_BEGIN) {
                /*
                 * Allocate arrays that will contain the graphs data
                 * and the min/max values.
                 */
                out = allocate_graph_lines(2 * a->item_list_sz, &outsize, &spmin, &spmax);
        }

        if (action & F_MAIN) {
                /* For each voltage input sensor */
                for (i = 0; i < a->nr[curr]; i++) {

                        spc = (struct stats_pwr_in *) ((char *) a->buf[curr] + i * a->msize);

                        /* Look for min/max values */
                        if (spc->in < *(spmin + 2 * i)) {
                                *(spmin + 2 * i) = spc->in;
                        }
                        if (spc->in > *(spmax + 2 * i)) {
                                *(spmax + 2 * i) = spc->in;
                        }
                        tval = (spc->in_max - spc->in_min) ?
                               (spc->in - spc->in_min) / (spc->in_max - spc->in_min) * 100 :
                               0.0;
                        if (tval < *(spmin + 2 * i + 1)) {
                                *(spmin + 2 * i + 1) = tval;
                        }
                        if (tval > *(spmax + 2 * i + 1)) {
                                *(spmax + 2 * i + 1) = tval;
                        }

                        /* inV */
                        lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                                 (double) spc->in,
                                 out + 2 * i, outsize + 2 * i, svg_p->restart);
                        /* %in */
                        brappend(record_hdr->ust_time - svg_p->ust_time_ref,
                                 0.0, tval,
                                 out + 2 * i + 1, outsize + 2 * i + 1, svg_p->dt);
                }
        }

        if (action & F_END) {
                int xid = 0;

                for (i = 0; i < a->item_list_sz; i++) {

                        spc = (struct stats_pwr_in *) ((char *) a->buf[curr]  + i * a->msize);

                        snprintf(item_name, MAX_SENSORS_DEV_LEN + 8, "%d: %s", i + 1, spc->device);
                        item_name[MAX_SENSORS_DEV_LEN + 7] = '\0';

                        if (draw_activity_graphs(a->g_nr, g_type,
                                                 title, g_title, item_name, group,
                                                 spmin + 2 * i, spmax + 2 * i, out + 2 * i, outsize + 2 * i,
                                                 svg_p, record_hdr, FALSE, a->id, xid)) {
                                xid++;
                        }
                }

                /* Free remaining structures */
                free_graphs(out, outsize, spmin, spmax);
        }
}

/*
 ***************************************************************************
 * Display huge pages statistics in SVG.
 *
 * IN:
 * @a           Activity structure with statistics.
 * @curr        Index in array for current sample statistics.
 * @action      Action expected from current function.
 * @svg_p       SVG specific parameters: Current graph number (.@graph_no),
 *              flag indicating that a restart record has been previously
 *              found (.@restart) and time used for the X axis origin
 *              (@ust_time_ref).
 * @itv         Interval of time in 1/100th of a second (only with F_MAIN action).
 * @record_hdr  Pointer on record header of current stats sample.
 ***************************************************************************
 */
__print_funct_t svg_print_huge_stats(struct activity *a, int curr, int action, struct svg_parm *svg_p,
                                     unsigned long long itv, struct record_header *record_hdr)
{
        struct stats_huge
                *smc = (struct stats_huge *) a->buf[curr];
        int group[] = {4, 1};
        int g_type[] = {SVG_LINE_GRAPH, SVG_BAR_GRAPH};
        char *title[] = {"Huge pages utilization (1)",
                         "Huge pages utilization (2)"};
        char *g_title[] = {"~kbhugfree", "~kbhugused", "~kbhugrsvd", "~kbhugsurp",
                           "%hugused"};
        int g_fields[] = {0, 5, 2, 3};
        static double *spmin, *spmax;
        static char **out;
        static int *outsize;
        double tval;

        if (action & F_BEGIN) {
                /*
                 * Allocate arrays that will contain the graphs data
                 * and the min/max values.
                 * Allocate one additional array (#5) to save min/max
                 * values for tlhkb (unused).
                 */
                out = allocate_graph_lines(6, &outsize, &spmin, &spmax);
        }

        if (action & F_MAIN) {
                /* Check for min/max values */
                save_extrema(a->gtypes_nr, (void *) a->buf[curr], NULL,
                             itv, spmin, spmax, g_fields);

                if (smc->tlhkb - smc->frhkb < *(spmin + 1)) {
                        *(spmin + 1) = smc->tlhkb - smc->frhkb;
                }
                if (smc->tlhkb - smc->frhkb > *(spmax + 1)) {
                        *(spmax + 1) = smc->tlhkb - smc->frhkb;
                }
                tval = smc->tlhkb ? SP_VALUE(smc->frhkb, smc->tlhkb, smc->tlhkb) : 0.0;
                if (tval < *(spmin + 4)) {
                        *(spmin + 4) = tval;
                }
                if (tval > *(spmax + 4)) {
                        *(spmax + 4) = tval;
                }

                /* kbhugfree */
                lniappend(record_hdr->ust_time - svg_p->ust_time_ref,
                          (unsigned long long) smc->frhkb,
                          out, outsize, svg_p->restart);
                /* hugused */
                lniappend(record_hdr->ust_time - svg_p->ust_time_ref,
                          (unsigned long long) smc->tlhkb - smc->frhkb,
                          out + 1, outsize + 1, svg_p->restart);
                /* kbhugrsvd */
                lniappend(record_hdr->ust_time - svg_p->ust_time_ref,
                          (unsigned long long) smc->rsvdhkb,
                          out + 2, outsize + 2, svg_p->restart);
                /* kbhugsurp */
                lniappend(record_hdr->ust_time - svg_p->ust_time_ref,
                          (unsigned long long) smc->surphkb,
                          out + 3, outsize + 3, svg_p->restart);
                /* %hugused */
                brappend(record_hdr->ust_time - svg_p->ust_time_ref,
                         0.0, tval,
                         out + 4, outsize + 4, svg_p->dt);
        }

        if (action & F_END) {
                draw_activity_graphs(a->g_nr, g_type,
                                     title, g_title, NULL, group,
                                     spmin, spmax, out, outsize, svg_p, record_hdr, FALSE, a->id, 0);

                /* Free remaining structures */
                free_graphs(out, outsize, spmin, spmax);
        }
}

/*
 ***************************************************************************
 * Display filesystem statistics in SVG.
 *
 * IN:
 * @a           Activity structure with statistics.
 * @curr        Index in array for current sample statistics.
 * @action      Action expected from current function.
 * @svg_p       SVG specific parameters: Current graph number (.@graph_no),
 *              flag indicating that a restart record has been previously
 *              found (.@restart) and time used for the X axis origin
 *              (@ust_time_ref).
 * @itv         Interval of time in 1/100th of a second (unused here).
 * @record_hdr  Pointer on record header of current stats sample.
 ***************************************************************************
 */
__print_funct_t svg_print_filesystem_stats(struct activity *a, int curr, int action, struct svg_parm *svg_p,
                                           unsigned long long itv, struct record_header *record_hdr)
{
        struct stats_filesystem *sfc, *sfp;
        int group[] = {2, 2, 2, 1};
        int g_type[] = {SVG_LINE_GRAPH, SVG_BAR_GRAPH,
                        SVG_LINE_GRAPH, SVG_BAR_GRAPH};
        char *title[] = {"Filesystems statistics (1)", "Filesystems statistics (2)",
                         "Filesystems statistics (3)", "Filesystems statistics (4)"};
        char *g_title[] = {"~MBfsfree", "~MBfsused",
                           "%ufsused", "%fsused",
                           "Ifree/1000", "Iused/1000",
                           "%Iused"};
        static double *spmin, *spmax;
        static char **out;
        static int *outsize;
        char *item_name;
        double tval;
        int i, k, pos, restart;

        if (action & F_BEGIN) {
                /*
                 * Allocate arrays (#0..6) that will contain the graphs data
                 * and the min/max values.
                 * Also allocate two additional arrays (#7..8) for each filesystem:
                 * out + 7 will contain the filesystem name,
                 * out + 8 will contain the mount point.
                 */
                out = allocate_graph_lines(9 * a->item_list_sz, &outsize, &spmin, &spmax);
        }

        if (action & F_MAIN) {
                /* For each filesystem structure */
                for (i = 0; i < a->nr[curr]; i++) {
                        sfc = (struct stats_filesystem *) ((char *) a->buf[curr] + i * a->msize);

                        if (a->item_list != NULL) {
                                /* A list of devices has been entered on the command line */
                                if (!search_list_item(a->item_list,
                                                      DISPLAY_MOUNT(a->opt_flags) ? sfc->mountp : sfc->fs_name))
                                        /* Device not found */
                                        continue;
                        }

                        /* Look for corresponding graph */
                        for (k = 0; k < a->item_list_sz; k++) {
                                item_name = *(out + k * 9 + 7);
                                if (!strcmp(sfc->fs_name, item_name))
                                        /* Graph found! */
                                        break;
                        }

                        if (k == a->item_list_sz) {
                                /* Graph not found: Look for first free entry */
                                for (k = 0; k < a->item_list_sz; k++) {
                                        item_name = *(out + k * 9 + 7);
                                        if (!strcmp(item_name, ""))
                                                break;
                                }
                                if (k == a->item_list_sz) {
                                        /* No free graph entry: Ignore it (should never happen) */
#ifdef DEBUG
                                        fprintf(stderr, "%s: Name=%s\n",
                                                __FUNCTION__, sfc->fs_name);
#endif
                                        continue;
                                }
                        }

                        pos = k * 9;

                        item_name = *(out + pos + 7);
                        if (!item_name[0]) {
                                /* Save filesystem name and mount point (if not already done) */
                                strncpy(item_name, sfc->fs_name, CHUNKSIZE);
                                item_name[CHUNKSIZE - 1] = '\0';
                                item_name = *(out + pos + 8);
                                strncpy(item_name, sfc->mountp, CHUNKSIZE);
                                item_name[CHUNKSIZE - 1] = '\0';
                        }

                        restart = TRUE;
                        for (k = 0; k < a->nr[!curr]; k++) {
                                sfp = (struct stats_filesystem *) ((char *) a->buf[!curr] + k * a->msize);
                                if (!strcmp(sfc->fs_name, sfp->fs_name)) {
                                        /* Filesystem found in previous sample */
                                        restart = svg_p->restart;
                                }
                        }

                        /* Check for min/max values */

                        /* Compute fsfree min/max values */
                        tval = (double) sfc->f_bfree;
                        if (tval > *(spmax + pos)) {
                                *(spmax + pos) = tval;
                        }
                        if (tval < *(spmin + pos)) {
                                *(spmin + pos) = tval;
                        }
                        /* Compute fsused min/max values */
                        tval = (double) (sfc->f_blocks - sfc->f_bfree);
                        if (tval > *(spmax + pos + 1)) {
                                *(spmax + pos + 1) = tval;
                        }
                        if (tval < *(spmin + pos + 1)) {
                                *(spmin + pos + 1) = tval;
                        }
                        /* Compute %ufsused min/max values */
                        tval = sfc->f_blocks ?
                               SP_VALUE(sfc->f_bavail, sfc->f_blocks, sfc->f_blocks) : 0.0;
                        if (tval > *(spmax + pos + 2)) {
                                *(spmax + pos + 2) = tval;
                        }
                        if (tval < *(spmin + pos + 2)) {
                                *(spmin + pos + 2) = tval;
                        }
                        /* Compute %fsused min/max values */
                        tval = sfc->f_blocks ?
                               SP_VALUE(sfc->f_bfree, sfc->f_blocks, sfc->f_blocks) : 0.0;
                        if (tval > *(spmax + pos + 3)) {
                                *(spmax + pos + 3) = tval;
                        }
                        if (tval < *(spmin + pos + 3)) {
                                *(spmin + pos + 3) = tval;
                        }
                        /* Compute Ifree min/max values */
                        tval = (double) sfc->f_ffree;
                        if (tval > *(spmax + pos + 4)) {
                                *(spmax + pos + 4) = tval;
                        }
                        if (tval < *(spmin + pos + 4)) {
                                *(spmin + pos + 4) = tval;
                        }
                        /* Compute Iused min/max values */
                        tval = (double) (sfc->f_files - sfc->f_ffree);
                        if (tval > *(spmax + pos + 5)) {
                                *(spmax + pos + 5) = tval;
                        }
                        if (tval < *(spmin + pos + 5)) {
                                *(spmin + pos + 5) = tval;
                        }
                        /* Compute %Iused min/max values */
                        tval = sfc->f_files ?
                               SP_VALUE(sfc->f_ffree, sfc->f_files, sfc->f_files) : 0.0;
                        if (tval > *(spmax + pos + 6)) {
                                *(spmax + pos + 6) = tval;
                        }
                        if (tval < *(spmin + pos + 6)) {
                                *(spmin + pos + 6) = tval;
                        }

                        /* MBfsfree */
                        lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                                 (double) sfc->f_bfree / 1024 / 1024,
                                 out + pos, outsize + pos, restart);
                        /* MBfsused */
                        lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                                 (double) (sfc->f_blocks - sfc->f_bfree) / 1024 / 1024,
                                 out + pos + 1, outsize + pos + 1, restart);
                        /* %ufsused */
                        brappend(record_hdr->ust_time - svg_p->ust_time_ref,
                                 0.0,
                                 sfc->f_blocks ?
                                 SP_VALUE(sfc->f_bavail, sfc->f_blocks, sfc->f_blocks) : 0.0,
                                 out + pos + 2, outsize + pos + 2, svg_p->dt);
                        /* %fsused */
                        brappend(record_hdr->ust_time - svg_p->ust_time_ref,
                                 0.0,
                                 sfc->f_blocks ?
                                 SP_VALUE(sfc->f_bfree, sfc->f_blocks, sfc->f_blocks) : 0.0,
                                 out + pos + 3, outsize + pos + 3, svg_p->dt);
                        /* Ifree */
                        lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                                 ((double) sfc->f_ffree) / 1000,
                                 out + pos + 4, outsize + pos + 4, restart);
                        /* Iused */
                        lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                                 ((double) (sfc->f_files - sfc->f_ffree)) / 1000,
                                 out + pos + 5, outsize + pos + 5, restart);
                        /* %Iused */
                        brappend(record_hdr->ust_time - svg_p->ust_time_ref,
                                 0.0,
                                 sfc->f_files ?
                                 SP_VALUE(sfc->f_ffree, sfc->f_files, sfc->f_files) : 0.0,
                                 out + pos + 6, outsize + pos + 6, svg_p->dt);
                }
        }

        if (action & F_END) {
                int xid = 0;

                for (i = 0; i < a->item_list_sz; i++) {

                        /* Check if there is something to display */
                        pos = i * 9;
                        if (!**(out + pos))
                                continue;

                        /* Conversion B -> MB and inodes/1000 */
                        for (k = 0; k < 2; k++) {
                                *(spmin + pos + k) /= (1024 * 1024);
                                *(spmax + pos + k) /= (1024 * 1024);
                                *(spmin + pos + 4 + k) /= 1000;
                                *(spmax + pos + 4 + k) /= 1000;
                        }

                        if (DISPLAY_MOUNT(a->opt_flags)) {
                                item_name = *(out + pos + 8);
                        }
                        else {
                                item_name = *(out + pos + 7);
                        }

                        if (draw_activity_graphs(a->g_nr, g_type, title, g_title, item_name, group,
                                                 spmin + pos, spmax + pos, out + pos, outsize + pos,
                                                 svg_p, record_hdr, FALSE, a->id, xid)) {
                                xid++;
                        }
                }

                /* Free remaining structures */
                free_graphs(out, outsize, spmin, spmax);
        }
}

/*
 ***************************************************************************
 * Display Fibre Channel HBA statistics in SVG.
 *
 * IN:
 * @a           Activity structure with statistics.
 * @curr        Index in array for current sample statistics.
 * @action      Action expected from current function.
 * @svg_p       SVG specific parameters: Current graph number (.@graph_no),
 *              flag indicating that a restart record has been previously
 *              found (.@restart) and time used for the X axis origin
 *              (@ust_time_ref).
 * @itv         Interval of time in 1/100th of a second (only with F_MAIN action).
 * @record_hdr  Pointer on record header of current stats sample.
 ***************************************************************************
 */
__print_funct_t svg_print_fchost_stats(struct activity *a, int curr, int action, struct svg_parm *svg_p,
                                       unsigned long long itv, struct record_header *record_hdr)
{
        struct stats_fchost *sfcc, *sfcp;
        int group[] = {2, 2};
        int g_type[] = {SVG_LINE_GRAPH, SVG_LINE_GRAPH};
        char *title[] = {"Fibre Channel HBA statistics (1)", "Fibre Channel HBA statistics (2)"};
        char *g_title[] = {"fch_rxf/s", "fch_txf/s",
                           "fch_rxw/s", "fch_txw/s"};
        int g_fields[] = {0, 1, 2, 3};
        static double *spmin, *spmax;
        static char **out;
        static int *outsize;
        char *item_name;
        int i, j, j0, k, found, pos, restart, *unregistered;

        if (action & F_BEGIN) {
                /*
                 * Allocate arrays (#0..3) that will contain the graphs data
                 * and the min/max values.
                 * Also allocate one additional array (#4) that will contain
                 * FC HBA name (out + 4) and a positive value (TRUE) if the interface
                 * has either still not been registered, or has been unregistered
                 * (outsize + 4).
                 */
                out = allocate_graph_lines(5 * a->item_list_sz, &outsize, &spmin, &spmax);
        }

        if (action & F_MAIN) {
                restart = svg_p->restart;
                /*
                 * Mark previously registered interfaces as now
                 * possibly unregistered for all graphs.
                 */
                for (k = 0; k < a->item_list_sz; k++) {
                        unregistered = outsize + k * 5 + 4;
                        if (*unregistered == FALSE) {
                                *unregistered = MAYBE;
                        }
                }

                /* For each FC HBA */
                for (i = 0; i < a->nr[curr]; i++) {

                        found = FALSE;

                        if (a->nr[!curr] > 0) {
                                sfcc = (struct stats_fchost *) ((char *) a->buf[curr] + i * a->msize);

                                /* Look for corresponding graph */
                                for (k = 0; k < a->item_list_sz; k++) {
                                        item_name = *(out + k * 5 + 4);
                                        if (!strcmp(sfcc->fchost_name, item_name))
                                                /* Graph found! */
                                                break;
                                }
                                if (k == a->item_list_sz) {
                                        /* Graph not found: Look for first free entry */
                                        for (k = 0; k < a->item_list_sz; k++) {
                                                item_name = *(out + k * 5 + 4);
                                                if (!strcmp(item_name, ""))
                                                        break;
                                        }
                                        if (k == a->item_list_sz) {
                                                /* No free graph entry: Ignore it (should never happen) */
#ifdef DEBUG
                                                fprintf(stderr, "%s: Name=%s\n",
                                                        __FUNCTION__, sfcc->fchost_name);
#endif
                                                continue;
                                        }
                                }

                                pos = k * 5;
                                unregistered = outsize + pos + 4;

                                /* Look for corresponding structure in previous iteration */
                                j = i;

                                if (j >= a->nr[!curr]) {
                                        j = a->nr[!curr] - 1;
                                }

                                j0 = j;

                                do {
                                        sfcp = (struct stats_fchost *) ((char *) a->buf[!curr] + j * a->msize);
                                        if (!strcmp(sfcc->fchost_name, sfcp->fchost_name)) {
                                                found = TRUE;
                                                break;
                                        }
                                        if (++j >= a->nr[!curr]) {
                                                j = 0;
                                        }
                                }
                                while (j != j0);
                        }

                        if (!found)
                                continue;

                        /*
                         * If current interface was marked as previously unregistered,
                         * then set restart variable to TRUE so that the graph will be
                         * discontinuous, and mark it as now registered.
                         */
                        if (*unregistered == TRUE) {
                                restart = TRUE;
                        }
                        *unregistered = FALSE;

                        item_name = *(out + pos + 4);
                        if (!item_name[0]) {
                                /* Save FC HBA name */
                                strncpy(item_name, sfcc->fchost_name, CHUNKSIZE);
                                item_name[CHUNKSIZE - 1] = '\0';
                        }

                        /* Look for min/max values */
                        save_extrema(a->gtypes_nr, (void *) sfcc, (void *) sfcp,
                                itv, spmin + pos, spmax + pos, g_fields);

                        /* fch_rxf/s */
                        lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                                 S_VALUE(sfcp->f_rxframes, sfcc->f_rxframes, itv),
                                 out + pos, outsize + pos, restart);
                        /* fch_txf/s */
                        lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                                 S_VALUE(sfcp->f_txframes, sfcc->f_txframes, itv),
                                 out + pos + 1, outsize + pos + 1, restart);
                        /* fch_rxw/s */
                        lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                                 S_VALUE(sfcp->f_rxwords, sfcc->f_rxwords, itv),
                                 out + pos + 2, outsize + pos + 2, restart);
                        /* fch_txw/s */
                        lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                                 S_VALUE(sfcp->f_txwords, sfcc->f_txwords, itv),
                                 out + pos + 3, outsize + pos + 3, restart);
                }

                /* Mark interfaces not seen here as now unregistered */
                for (k = 0; k < a->item_list_sz; k++) {
                        unregistered = outsize + k * 5 + 4;
                        if (*unregistered != FALSE) {
                                *unregistered = TRUE;
                        }
                }
        }

        if (action & F_END) {
                for (i = 0; i < a->item_list_sz; i++) {

                        /* Check if there is something to display */
                        pos = i * 5;
                        if (!**(out + pos))
                                continue;

                        item_name = *(out + pos + 4);
                        draw_activity_graphs(a->g_nr, g_type,
                                             title, g_title, item_name, group,
                                             spmin + pos, spmax + pos, out + pos, outsize + pos,
                                             svg_p, record_hdr, FALSE, a->id, i);
                }

                /* Free remaining structures */
                free_graphs(out, outsize, spmin, spmax);
        }
}

/*
 ***************************************************************************
 * Display softnet statistics in SVG.
 *
 * IN:
 * @a           Activity structure with statistics.
 * @curr        Index in array for current sample statistics.
 * @action      Action expected from current function.
 * @svg_p       SVG specific parameters: Current graph number (.@graph_no),
 *              flag indicating that a restart record has been previously
 *              found (.@restart) and time used for the X axis origin
 *              (@ust_time_ref).
 * @itv         Interval of time in 1/100th of a second (only with F_MAIN action).
 * @record_hdr  Pointer on record header of current stats sample.
 ***************************************************************************
 */
__print_funct_t svg_print_softnet_stats(struct activity *a, int curr, int action, struct svg_parm *svg_p,
                                        unsigned long long itv, struct record_header *record_hdr)
{
        struct stats_softnet *ssnc, *ssnp, ssnczero;
        int group[] = {2, 3};
        int g_type[] = {SVG_LINE_GRAPH, SVG_LINE_GRAPH};
        char *title[] = {"Software-based network processing statistics (1)",
                         "Software-based network processing statistics (2)"};
        char *g_title[] = {"total/s", "dropd/s",
                           "squeezd/s", "rx_rps/s", "flw_lim/s"};
        int g_fields[] = {0, 1, 2, 3, 4};
        static double *spmin, *spmax;
        static char **out;
        static int *outsize;
        char item_name[16];
        unsigned char offline_cpu_bitmap[BITMAP_SIZE(NR_CPUS)] = {0};
        int i, pos, restart;

        if (action & F_BEGIN) {
                /*
                 * Allocate arrays that will contain the graphs data
                 * and the min/max values.
                 */
                out = allocate_graph_lines(5 * a->item_list_sz, &outsize, &spmin, &spmax);
        }

        if (action & F_MAIN) {
                memset(&ssnczero, 0, STATS_SOFTNET_SIZE);

                /* @nr[curr] cannot normally be greater than @nr_ini */
                if (a->nr[curr] > a->nr_ini) {
                        a->nr_ini = a->nr[curr];
                }

                /* Compute statistics for CPU "all" */
                get_global_soft_statistics(a, !curr, curr, flags, offline_cpu_bitmap);

                /* For each CPU */
                for (i = 0; (i < a->nr_ini) && (i < a->bitmap->b_size + 1); i++) {
                        restart = svg_p->restart;

                        /* Should current CPU (including CPU "all") be displayed? */
                        if (!(a->bitmap->b_array[i >> 3] & (1 << (i & 0x07))))
                                /* No */
                                continue;

                        ssnc = (struct stats_softnet *) ((char *) a->buf[curr]  + i * a->msize);
                        ssnp = (struct stats_softnet *) ((char *) a->buf[!curr] + i * a->msize);

                        /* Is current CPU marked offline? */
                        if (offline_cpu_bitmap[i >> 3] & (1 << (i & 0x07))) {
                                /*
                                 * Yes and it doesn't follow a RESTART record.
                                 * To add a discontinuity in graph, we simulate
                                 * a RESTART mark.
                                 */
                                restart = TRUE;
                                if (svg_p->restart) {
                                        /*
                                         * CPU is offline and it follows a real
                                         * RESTART record. Ignore its current value
                                         * (no previous sample).
                                         */
                                        ssnc = &ssnczero;
                                }
                        }
                        pos = i * 5;

                        /* Check for min/max values */
                        save_extrema(a->gtypes_nr, (void *) ssnc, (void *) ssnp,
                                     itv, spmin + pos, spmax + pos, g_fields);

                        /* total/s */
                        lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                                 S_VALUE(ssnp->processed, ssnc->processed, itv),
                                 out + pos, outsize + pos, restart);
                        /* dropd/s */
                        lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                                 S_VALUE(ssnp->dropped, ssnc->dropped, itv),
                                 out + pos + 1, outsize + pos + 1, restart);
                        /* squeezd/s */
                        lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                                 S_VALUE(ssnp->time_squeeze, ssnc->time_squeeze, itv),
                                 out + pos + 2, outsize + pos + 2, restart);
                        /* rx_rps/s */
                        lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                                 S_VALUE(ssnp->received_rps, ssnc->received_rps, itv),
                                 out + pos + 3, outsize + pos + 3, restart);
                        /* flw_lim/s */
                        lnappend(record_hdr->ust_time - svg_p->ust_time_ref,
                                 S_VALUE(ssnp->flow_limit, ssnc->flow_limit, itv),
                                 out + pos + 4, outsize + pos + 4, restart);
                }
        }

        if (action & F_END) {
                for (i = 0; (i < a->item_list_sz) && (i < a->bitmap->b_size + 1); i++) {

                        /* Should current CPU (including CPU "all") be displayed? */
                        if (!(a->bitmap->b_array[i >> 3] & (1 << (i & 0x07))))
                                /* No */
                                continue;

                        pos = i * 5;

                        if (!i) {
                                /* This is CPU "all" */
                                strcpy(item_name, "all");
                        }
                        else {
                                sprintf(item_name, "%d", i - 1);
                        }

                        draw_activity_graphs(a->g_nr, g_type,
                                             title, g_title, item_name, group,
                                             spmin + pos, spmax + pos, out + pos, outsize + pos,
                                             svg_p, record_hdr, FALSE, a->id, i);
                }

                /* Free remaining structures */
                free_graphs(out, outsize, spmin, spmax);
        }
}