* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+#include <ctype.h>
+#include <errno.h>
+#include <getopt.h>
#include <locale.h>
-#include <stdlib.h>
+#include <ncurses.h>
+#include <signal.h>
#include <stdio.h>
+#include <stdlib.h>
#include <string.h>
-#include <errno.h>
-#include <signal.h>
-#include <ncurses.h>
#include <termios.h>
-#include <getopt.h>
-#include <ctype.h>
-#include <sys/ioctl.h>
+#include <sys/ioctl.h>
#include <sys/select.h>
#include <sys/time.h>
#include <sys/types.h>
#include "strutils.h"
#include <proc/slab.h>
-#define DEFAULT_SORT_ITEM PROCPS_SLABNODE_OBJS
+#define DEFAULT_SORT PROCPS_SLABNODE_OBJS
+#define CHAINS_ALLOC 150
+
+static unsigned short Cols, Rows;
+static struct termios Saved_tty;
+static long Delay = 3;
+static int Run_once = 0;
+
+static struct procps_slabinfo *Slab_info;
+
+enum slabnode_item Sort_item = DEFAULT_SORT;
+
+enum slabnode_item Node_items[] = {
+ PROCPS_SLABNODE_OBJS, PROCPS_SLABNODE_AOBJS, PROCPS_SLABNODE_USE,
+ PROCPS_SLABNODE_OBJ_SIZE, PROCPS_SLABNODE_SLABS, PROCPS_SLABNODE_OBJS_PER_SLAB,
+ PROCPS_SLABNODE_SIZE, PROCPS_SLABNODE_NAME,
+ /* last 2 are sortable but are not displayable,
+ thus they need not be represented in the Relative_enums */
+ PROCPS_SLABNODE_PAGES_PER_SLAB,
+ PROCPS_SLABNODE_ASLABS };
+
+enum Relative_enums {
+ my_OBJS, my_AOBJS, my_USE, my_OSIZE,
+ my_SLABS, my_OPS, my_SIZE, my_NAME };
+
+#define MAX_ITEMS (int)(sizeof(Node_items) / sizeof(Node_items[0]))
+
+#define PRINT_line(fmt, ...) if (Run_once) printf(fmt, __VA_ARGS__); else printw(fmt, __VA_ARGS__)
-static unsigned short cols, rows;
-static struct termios saved_tty;
-static long delay = 3;
-static int run_once = 0;
-#define print_line(fmt, ...) if (run_once) printf(fmt, __VA_ARGS__); else printw(fmt, __VA_ARGS__)
/*
- * term_size - set the globals 'cols' and 'rows' to the current terminal size
+ * term_resize - set the globals 'Cols' and 'Rows' to the current terminal size
*/
-static void term_size(int unusused __attribute__ ((__unused__)))
+static void term_resize (int unusused __attribute__ ((__unused__)))
{
struct winsize ws;
if ((ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws) != -1) && ws.ws_row > 10) {
- cols = ws.ws_col;
- rows = ws.ws_row;
+ Cols = ws.ws_col;
+ Rows = ws.ws_row;
} else {
- cols = 80;
- rows = 24;
+ Cols = 80;
+ Rows = 24;
}
}
-static void sigint_handler(int unused __attribute__ ((__unused__)))
+static void sigint_handler (int unused __attribute__ ((__unused__)))
{
- delay = 0;
+ Delay = 0;
}
-static void __attribute__((__noreturn__)) usage(FILE *out)
+static void __attribute__((__noreturn__)) usage (FILE *out)
{
fputs(USAGE_HEADER, out);
fprintf(out, _(" %s [options]\n"), program_invocation_short_name);
fputs(_(" b: sort by objects per slab\n"), out);
fputs(_(" c: sort by cache size\n"), out);
fputs(_(" l: sort by number of slabs\n"), out);
- fputs(_(" v: sort by number of active slabs\n"), out);
+ fputs(_(" v: sort by (non display) number of active slabs\n"), out);
fputs(_(" n: sort by name\n"), out);
fputs(_(" o: sort by number of objects (the default)\n"), out);
- fputs(_(" p: sort by pages per slab\n"), out);
+ fputs(_(" p: sort by (non display) pages per slab\n"), out);
fputs(_(" s: sort by object size\n"), out);
fputs(_(" u: sort by cache utilization\n"), out);
fprintf(out, USAGE_MAN_TAIL("slabtop(1)"));
/*
* set_sort_func - return the slab_sort_func that matches the given key.
- * On unrecognizable key, DEF_SORT_FUNC is returned.
+ * On unrecognizable key, DEFAULT_SORT is returned.
*/
-static enum procps_slabinfo_nodeitem get_sort_item(
- const char key,
- enum procps_slabinfo_nodeitem old_sort)
+static enum slabnode_item set_sort_item (
+ const char key)
{
switch (tolower(key)) {
case 'n':
case 'a':
return PROCPS_SLABNODE_AOBJS;
case 's':
- return PROCPS_SLABNODE_SIZE;
+ return PROCPS_SLABNODE_OBJ_SIZE;
case 'b':
return PROCPS_SLABNODE_OBJS_PER_SLAB;
case 'p':
case 'u':
return PROCPS_SLABNODE_USE;
default:
- return old_sort;
+ return DEFAULT_SORT;
}
}
-#if 0
- case 'Q':
- delay = 0;
- break;
+static void parse_opts (int argc, char **argv)
+{
+ static const struct option longopts[] = {
+ { "delay", required_argument, NULL, 'd' },
+ { "sort", required_argument, NULL, 's' },
+ { "once", no_argument, NULL, 'o' },
+ { "help", no_argument, NULL, 'h' },
+ { "version", no_argument, NULL, 'V' },
+ { NULL, 0, NULL, 0 }};
+ int o;
+
+ while ((o = getopt_long(argc, argv, "d:s:ohV", longopts, NULL)) != -1) {
+ switch (o) {
+ case 'd':
+ errno = 0;
+ Delay = strtol_or_err(optarg, _("illegal delay"));
+ if (Delay < 1)
+ xerrx(EXIT_FAILURE, _("delay must be positive integer"));
+ break;
+ case 's':
+ Sort_item = set_sort_item(optarg[0]);
+ break;
+ case 'o':
+ Run_once=1;
+ Delay = 0;
+ break;
+ case 'V':
+ printf(PROCPS_NG_VERSION);
+ exit(EXIT_SUCCESS);
+ case 'h':
+ usage(stdout);
+ default:
+ usage(stderr);
+ }
}
}
-#endif
-static void print_stats(struct procps_slabinfo *info)
+static void print_summary (void)
{
-#define STAT_VAL(e) stats[e].result
- enum stat_enums {
+ #define STAT_VAL(e) (int)stats[e].result
+ enum slabs_enums {
stat_AOBJS, stat_OBJS, stat_ASLABS, stat_SLABS,
stat_ACACHES, stat_CACHES, stat_ACTIVE, stat_TOTAL,
stat_MIN, stat_AVG, stat_MAX,
};
- static struct procps_slabinfo_result stats[] = {
- { PROCPS_SLABINFO_AOBJS, 0, &stats[1] },
- { PROCPS_SLABINFO_OBJS, 0, &stats[2] },
- { PROCPS_SLABINFO_ASLABS, 0, &stats[3] },
- { PROCPS_SLABINFO_SLABS, 0, &stats[4] },
- { PROCPS_SLABINFO_ACACHES, 0, &stats[5] },
- { PROCPS_SLABINFO_CACHES, 0, &stats[6] },
- { PROCPS_SLABINFO_SIZE_ACTIVE, 0, &stats[7] },
- { PROCPS_SLABINFO_SIZE_TOTAL, 0, &stats[8] },
- { PROCPS_SLABINFO_SIZE_MIN, 0, &stats[9] },
- { PROCPS_SLABINFO_SIZE_AVG, 0, &stats[10] },
- { PROCPS_SLABINFO_SIZE_MAX, 0, NULL },
+ static struct slabs_result stats[] = {
+ { PROCPS_SLABS_AOBJS, 0, &stats[1] },
+ { PROCPS_SLABS_OBJS, 0, &stats[2] },
+ { PROCPS_SLABS_ASLABS, 0, &stats[3] },
+ { PROCPS_SLABS_SLABS, 0, &stats[4] },
+ { PROCPS_SLABS_ACACHES, 0, &stats[5] },
+ { PROCPS_SLABS_CACHES, 0, &stats[6] },
+ { PROCPS_SLABS_SIZE_ACTIVE, 0, &stats[7] },
+ { PROCPS_SLABS_SIZE_TOTAL, 0, &stats[8] },
+ { PROCPS_SLABS_SIZE_MIN, 0, &stats[9] },
+ { PROCPS_SLABS_SIZE_AVG, 0, &stats[10] },
+ { PROCPS_SLABS_SIZE_MAX, 0, NULL },
};
- if (procps_slabinfo_stat_getchain(info, stats) < 0)
- xerrx(EXIT_FAILURE,
- _("Error getting slabinfo results"));
-
- print_line(" %-35s: %d / %d (%.1f%%)\n"
- " %-35s: %d / %d (%.1f%%)\n"
- " %-35s: %d / %d (%.1f%%)\n"
- " %-35s: %.2fK / %.2fK (%.1f%%)\n"
- " %-35s: %.2fK / %.2fK / %.2fK\n\n",
- /* Translation Hint: Next five strings must not
- * exceed 35 length in characters. */
- /* xgettext:no-c-format */
- _("Active / Total Objects (% used)"),
- STAT_VAL(stat_AOBJS), STAT_VAL(stat_OBJS),
- 100.0 * STAT_VAL(stat_AOBJS) / STAT_VAL(stat_OBJS),
- /* xgettext:no-c-format */
- _("Active / Total Slabs (% used)"),
- STAT_VAL(stat_ASLABS), STAT_VAL(stat_SLABS),
- 100.0 * STAT_VAL(stat_ASLABS) / STAT_VAL(stat_SLABS),
- /* xgettext:no-c-format */
- _("Active / Total Caches (% used)"),
- STAT_VAL(stat_ACACHES), STAT_VAL(stat_CACHES),
- 100.0 * STAT_VAL(stat_ACACHES) / STAT_VAL(stat_CACHES),
- /* xgettext:no-c-format */
- _("Active / Total Size (% used)"),
- STAT_VAL(stat_ACTIVE) / 1024.0 , STAT_VAL(stat_TOTAL) / 1024.0,
- 100.0 * STAT_VAL(stat_ACTIVE) / STAT_VAL(stat_TOTAL),
- _("Minimum / Average / Maximum Object"),
- STAT_VAL(stat_MIN) / 1024.0, STAT_VAL(stat_AVG) / 1024.0,
- STAT_VAL(stat_MAX) / 1024.0);
-#undef STAT_VAL
+ if (procps_slabs_getchain(Slab_info, stats) < 0) \
+ xerrx(EXIT_FAILURE, _("Error getting slab summary results"));
+
+ PRINT_line(" %-35s: %d / %d (%.1f%%)\n"
+ , /* Translation Hint: Next five strings must not
+ * exceed a length of 35 characters. */
+ /* xgettext:no-c-format */
+ _("Active / Total Objects (% used)")
+ , STAT_VAL(stat_AOBJS)
+ , STAT_VAL(stat_OBJS)
+ , 100.0 * STAT_VAL(stat_AOBJS) / STAT_VAL(stat_OBJS));
+ PRINT_line(" %-35s: %d / %d (%.1f%%)\n"
+ , /* xgettext:no-c-format */
+ _("Active / Total Slabs (% used)")
+ , STAT_VAL(stat_ASLABS)
+ , STAT_VAL(stat_SLABS)
+ , 100.0 * STAT_VAL(stat_ASLABS) / STAT_VAL(stat_SLABS));
+ PRINT_line(" %-35s: %d / %d (%.1f%%)\n"
+ , /* xgettext:no-c-format */
+ _("Active / Total Caches (% used)")
+ , STAT_VAL(stat_ACACHES)
+ , STAT_VAL(stat_CACHES)
+ , 100.0 * STAT_VAL(stat_ACACHES) / STAT_VAL(stat_CACHES));
+ PRINT_line(" %-35s: %.2fK / %.2fK (%.1f%%)\n"
+ , /* xgettext:no-c-format */
+ _("Active / Total Size (% used)")
+ , STAT_VAL(stat_ACTIVE) / 1024.0
+ , STAT_VAL(stat_TOTAL) / 1024.0
+ , 100.0 * STAT_VAL(stat_ACTIVE) / STAT_VAL(stat_TOTAL));
+ PRINT_line(" %-35s: %.2fK / %.2fK / %.2fK\n\n"
+ , _("Minimum / Average / Maximum Object")
+ , STAT_VAL(stat_MIN) / 1024.0
+ , STAT_VAL(stat_AVG) / 1024.0
+ , STAT_VAL(stat_MAX) / 1024.0);
+ #undef STAT_VAL
}
-static void cleanup(const int is_tty, struct procps_slabinfo **slab_info)
+static void print_headings (void)
{
- if (is_tty)
- tcsetattr(STDIN_FILENO, TCSAFLUSH, &saved_tty);
- if (!run_once)
- endwin();
- procps_slabinfo_unref(slab_info);
+ /* Translation Hint: Please keep alignment of the
+ * following intact. */
+ PRINT_line("%-78s\n", _(" OBJS ACTIVE USE OBJ SIZE SLABS OBJ/SLAB CACHE SIZE NAME"));
}
-int main(int argc, char *argv[])
+static void print_details (struct slabnode_chain *chain)
{
- int is_tty, o;
- int nr_slabs;
- unsigned short old_rows;
- int retval = EXIT_SUCCESS;
- struct procps_slabinfo *slab_info;
- enum procps_slabinfo_nodeitem sort_item = DEFAULT_SORT_ITEM;
+ #define my_NUM(c,e) (unsigned)c->head[e].result.num
+ #define my_STR(c,e) c->head[e].result.str
+
+ PRINT_line("%6u %6u %3u%% %7.2fK %6u %8u %9uK %-23s\n"
+ , my_NUM(chain, my_OBJS), my_NUM(chain, my_AOBJS)
+ , my_NUM(chain, my_USE), my_NUM(chain, my_OSIZE) / 1024.0
+ , my_NUM(chain, my_SLABS), my_NUM(chain, my_OPS)
+ , my_NUM(chain, my_SIZE) / 1024
+ , my_STR(chain, my_NAME));
+
+ return;
+ #undef my_NUM
+ #undef my_STR
+}
- static const struct option longopts[] = {
- { "delay", required_argument, NULL, 'd' },
- { "sort", required_argument, NULL, 's' },
- { "once", no_argument, NULL, 'o' },
- { "help", no_argument, NULL, 'h' },
- { "version", no_argument, NULL, 'V' },
- { NULL, 0, NULL, 0 }
- };
- struct procps_slabnode_result result[] = {
- { PROCPS_SLABNODE_OBJS, 0, &result[1] },
- { PROCPS_SLABNODE_AOBJS, 0, &result[2] },
- { PROCPS_SLABNODE_USE, 0, &result[3] },
- { PROCPS_SLABNODE_OBJ_SIZE, 0, &result[4] },
- { PROCPS_SLABNODE_SLABS, 0, &result[5] },
- { PROCPS_SLABNODE_OBJS_PER_SLAB, 0, &result[6] },
- { PROCPS_SLABNODE_SIZE, 0, NULL } };
- enum result_enums {
- stat_OBJS, stat_AOBJS, stat_USE, stat_OSIZE, stat_SLABS,
- stat_OPS, stat_SIZE };
+int main(int argc, char *argv[])
+{
+ int is_tty, nr_slabs, rc = EXIT_SUCCESS;
+ unsigned short old_rows;
+ struct slabnode_chain **v;
#ifdef HAVE_PROGRAM_INVOCATION_NAME
program_invocation_name = program_invocation_short_name;
textdomain(PACKAGE);
atexit(close_stdout);
- while ((o = getopt_long(argc, argv, "d:s:ohV", longopts, NULL)) != -1) {
- switch (o) {
- case 'd':
- errno = 0;
- delay = strtol_or_err(optarg, _("illegal delay"));
- if (delay < 1)
- xerrx(EXIT_FAILURE,
- _("delay must be positive integer"));
- break;
- case 's':
- sort_item = get_sort_item(optarg[0], sort_item);
- break;
- case 'o':
- run_once=1;
- delay = 0;
- break;
- case 'V':
- printf(PROCPS_NG_VERSION);
- return EXIT_SUCCESS;
- case 'h':
- usage(stdout);
- default:
- usage(stderr);
- }
- }
-
- if (procps_slabinfo_new(&slab_info) < 0)
- xerrx(EXIT_FAILURE,
- _("Unable to create slabinfo structure"));
+ parse_opts(argc, argv);
+ if (procps_slabinfo_new(&Slab_info) < 0)
+ xerrx(EXIT_FAILURE, _("Unable to create slabinfo structure"));
- is_tty = isatty(STDIN_FILENO);
- if (is_tty && tcgetattr(STDIN_FILENO, &saved_tty) == -1)
- xwarn(_("terminal setting retrieval"));
+ if (!(v = procps_slabnode_chains_alloc(Slab_info, CHAINS_ALLOC, 0, MAX_ITEMS, Node_items)))
+ xerrx(EXIT_FAILURE, _("Unable to allocate slabinfo nodes"));
- old_rows = rows;
- term_size(0);
- if (!run_once) {
+ if (!Run_once) {
+ is_tty = isatty(STDIN_FILENO);
+ if (is_tty && tcgetattr(STDIN_FILENO, &Saved_tty) == -1)
+ xwarn(_("terminal setting retrieval"));
+ old_rows = Rows;
+ term_resize(0);
initscr();
- resizeterm(rows, cols);
- signal(SIGWINCH, term_size);
+ resizeterm(Rows, Cols);
+ signal(SIGWINCH, term_resize);
+ signal(SIGINT, sigint_handler);
}
- signal(SIGINT, sigint_handler);
-#define STAT_VAL(e) result[e].result
do {
- char *slab_name;
struct timeval tv;
fd_set readfds;
- char c;
- int i, myerrno;
+ int i;
- if (procps_slabinfo_read(slab_info) < 0) {
- xwarn(_("Unable to read slabinfo"));
- retval = EXIT_FAILURE;
+ // this next guy also performs the procps_slabnode_read() call
+ if ((nr_slabs = procps_slabnode_chains_fill(Slab_info, v, CHAINS_ALLOC)) < 0) {
+ xwarn(_("Unable to get slabinfo node data"));
+ rc = EXIT_FAILURE;
break;
}
-
- if (!run_once && old_rows != rows) {
- resizeterm(rows, cols);
- old_rows = rows;
+ if (!(v = procps_slabnode_chains_sort(Slab_info, v, nr_slabs, Sort_item))) {
+ xwarn(_("Unable to sort slab nodes"));
+ rc = EXIT_FAILURE;
+ break;
}
- move(0, 0);
- print_stats(slab_info);
-
- if (procps_slabinfo_sort(slab_info, sort_item) < 0) {
- xwarn(_("Unable to sort slabnodes"));
- retval= EXIT_FAILURE;
+ if (Run_once) {
+ print_summary();
+ print_headings();
+ for (i = 0; i < nr_slabs; i++)
+ print_details(v[i]);
break;
}
+ if (old_rows != Rows) {
+ resizeterm(Rows, Cols);
+ old_rows = Rows;
+ }
+ move(0, 0);
+ print_summary();
attron(A_REVERSE);
- /* Translation Hint: Please keep alignment of the
- * following intact. */
- print_line("%-78s\n", _(" OBJS ACTIVE USE OBJ SIZE SLABS OBJ/SLAB CACHE SIZE NAME"));
+ print_headings();
attroff(A_REVERSE);
- if ((nr_slabs = procps_slabinfo_node_count(slab_info)) < 0) {
- xwarn(_("Unable to count slabinfo nodes"));
- retval = EXIT_FAILURE;
- break;
- }
-
- for (i=0 ; i < rows - 8 && i < nr_slabs; i++) {
- if (procps_slabinfo_node_getchain(slab_info, result, i) < 0) {
- xwarn(_("Unable to get slabinfo node data"));
- retval = EXIT_FAILURE;
+ for (i = 0; i < Rows - 8 && i < nr_slabs; i++)
+ print_details(v[i]);
+
+ refresh();
+ FD_ZERO(&readfds);
+ FD_SET(STDIN_FILENO, &readfds);
+ tv.tv_sec = Delay;
+ tv.tv_usec = 0;
+ if (select(STDOUT_FILENO, &readfds, NULL, NULL, &tv) > 0) {
+ char c;
+ if (read(STDIN_FILENO, &c, 1) != 1
+ || (c == 'Q' || c == 'q'))
break;
- }
- slab_name= procps_slabinfo_node_getname(slab_info, i);
- print_line("%6u %6u %3u%% %7.2fK %6u %8u %9uK %-23s\n",
- STAT_VAL(stat_OBJS), STAT_VAL(stat_AOBJS),
- STAT_VAL(stat_USE),
- STAT_VAL(stat_OSIZE) / 1024.0, STAT_VAL(stat_SLABS),
- STAT_VAL(stat_OPS),
- (unsigned)(STAT_VAL(stat_SIZE) / 1024),
- slab_name?slab_name:"(unknown)");
- }
- if (!run_once) {
- refresh();
- FD_ZERO(&readfds);
- FD_SET(STDIN_FILENO, &readfds);
- tv.tv_sec = delay;
- tv.tv_usec = 0;
- if (select(STDOUT_FILENO, &readfds, NULL, NULL, &tv) > 0) {
- if (read(STDIN_FILENO, &c, 1) != 1)
- break;
- if (c == 'Q' || c == 'q')
- delay = 0;
- else
- sort_item = get_sort_item(c, sort_item);
- }
+ Sort_item = set_sort_item(c);
}
- } while (delay);
- cleanup(is_tty, &slab_info);
+ // made zero by sigint_handler()
+ } while (Delay);
+ if (!Run_once) {
+ if (is_tty)
+ tcsetattr(STDIN_FILENO, TCSAFLUSH, &Saved_tty);
+ endwin();
+ }
+ procps_slabinfo_unref(&Slab_info);
+ return rc;
}
projects / procps-ng / commitdiff