From 8d9612f7827959363b572742172b6b4b18796bdf Mon Sep 17 00:00:00 2001 From: Jim Warner Date: Sat, 11 Jul 2015 00:00:00 -0500 Subject: [PATCH] vmstat: adapted to exploit the alloc & sort interfaces In addition to exploiting the new interface, a warning for a meminfo variable 'used uninitialized' was fixed. Signed-off-by: Jim Warner --- vmstat.c | 89 ++++++++++++++++++++++++++++---------------------------- 1 file changed, 45 insertions(+), 44 deletions(-) diff --git a/vmstat.c b/vmstat.c index 3cd4f1c3..57b27617 100644 --- a/vmstat.c +++ b/vmstat.c @@ -49,12 +49,11 @@ #include "nls.h" #include "strutils.h" #include "proc/sysinfo.h" -#include "proc/version.h" #include #include #include -#include #include +#include #define UNIT_B 1 #define UNIT_k 1000 @@ -219,8 +218,7 @@ static void new_format(void) unsigned int tog = 0; /* toggle switch for cleaner code */ unsigned int i; long hz; - jiff cpu_use[2], cpu_nic[2], cpu_sys[2], cpu_idl[2], cpu_iow[2], - cpu_xxx[2], cpu_yyy[2], cpu_sto[2]; + jiff cpu_use[2], cpu_sys[2], cpu_idl[2], cpu_iow[2], cpu_sto[2]; jiff duse, dsys, didl, diow, dstl, Div, divo2; unsigned long pgpgin[2], pgpgout[2], pswpin[2] = {0,0}, pswpout[2]; unsigned int intr[2], ctxt[2]; @@ -251,11 +249,9 @@ static void new_format(void) xerrx(EXIT_FAILURE, _("Unable to read system stat information")); if (procps_meminfo_new(&mem_info) < 0) - xerrx(EXIT_FAILURE, - _("Unable to create meminfo structure")); + xerrx(EXIT_FAILURE, _("Unable to create meminfo structure")); if (procps_meminfo_read(mem_info) < 0) - xerrx(EXIT_FAILURE, - _("Unable to read meminfo information")); + xerrx(EXIT_FAILURE, _("Unable to read meminfo information")); if (t_option) { (void) time( &the_time ); @@ -435,7 +431,7 @@ static int diskpartition_format(const char *partition_name) { #define PARTGET(x) procps_diskstat_dev_get(disk_stat, (x), partid) struct procps_diskstat *disk_stat; - const char format[] = "%20u %10llu %10u %10llu\n"; + const char format[] = "%20lu %10lu %10lu %10lu\n"; int i, partid; if (procps_diskstat_new(&disk_stat) < 0) @@ -545,8 +541,8 @@ static void diskformat(void) time_t the_time; struct tm *tm_ptr; char timebuf[32]; - const char format[] = "%-5s %6u %6u %7llu %7u %6u %6u %7llu %7u %6u %6u"; - const char wide_format[] = "%-5s %9u %9u %11llu %11u %9u %9u %11llu %11u %7u %7u"; + const char format[] = "%-5s %6lu %6lu %7lu %7lu %6lu %6lu %7lu %7lu %6lu %6lu"; + const char wide_format[] = "%-5s %9lu %9lu %lu %1u %9lu %9lu %lu %1u %7lu %7lu"; if (procps_diskstat_new(&disk_stat) < 0) xerr(EXIT_FAILURE, @@ -612,54 +608,54 @@ static void slabheader(void) _("Pages")); } -static void slabformat(void) +static void slabformat (void) { + #define CHAINS_ALLOC 150 + #define MAX_ITEMS (int)(sizeof(node_items) / sizeof(node_items[0])) + #define SLAB_NUM(c,e) (unsigned)c->head[e].result.num + #define SLAB_STR(c,e) c->head[e].result.str struct procps_slabinfo *slab_info; - int i, nodeid, nr_slabs; - const char format[] = "%-24s %6u %6u %6u %6u\n"; - char *slab_name; - struct procps_slabnode_result result[] = { - { PROCPS_SLABNODE_AOBJS, 0, &result[1] }, - { PROCPS_SLABNODE_OBJS, 0, &result[2] }, - { PROCPS_SLABNODE_OBJ_SIZE, 0, &result[3] }, - { PROCPS_SLABNODE_OBJS_PER_SLAB, 0, NULL }}; - enum result_enums { - stat_AOBJS, stat_OBJS, stat_OSIZE, stat_OPS}; -#define SLAB_VAL(e) result[e].result - + struct slabnode_chain **v; + int i, j, nr_slabs; + const char format[] = "%-24.24s %6u %6u %6u %6u\n"; + enum slabnode_item node_items[] = { + PROCPS_SLABNODE_AOBJS, PROCPS_SLABNODE_OBJS, + PROCPS_SLABNODE_OBJ_SIZE, PROCPS_SLABNODE_OBJS_PER_SLAB, + PROCPS_SLABNODE_NAME }; + enum rel_enums { + slab_AOBJS, slab_OBJS, slab_OSIZE, slab_OPS, slab_NAME }; if (procps_slabinfo_new(&slab_info) < 0) - xerrx(EXIT_FAILURE, - _("Unable to create slabinfo structure")); - + xerrx(EXIT_FAILURE, _("Unable to create slabinfo structure")); + if (!(v = procps_slabnode_chains_alloc(slab_info, CHAINS_ALLOC, 0, MAX_ITEMS, node_items))) + xerrx(EXIT_FAILURE, _("Unable to allocate slabinfo nodes")); if (!moreheaders) slabheader(); for (i = 0; infinite_updates || i < num_updates; i++) { - if (procps_slabinfo_read(slab_info) < 0) - xerrx(EXIT_FAILURE, - _("Unable to read slabinfo structure")); - if ((nr_slabs = procps_slabinfo_node_count(slab_info)) < 0) - xerrx(EXIT_FAILURE, - _("Unable to count number of slabinfo nodes")); - - for (nodeid = 0; nodeid < nr_slabs; nodeid++) { - if (moreheaders && ((nodeid % height) == 0)) + // this next guy also performs the procps_slabnode_read() call + if ((nr_slabs = procps_slabnode_chains_fill(slab_info, v, CHAINS_ALLOC)) < 0) + xerrx(EXIT_FAILURE, _("Unable to get slabinfo node data, requires root permission")); + if (!(v = procps_slabnode_chains_sort(slab_info, v, nr_slabs, PROCPS_SLABNODE_NAME))) + xerrx(EXIT_FAILURE, _("Unable to sort slab nodes")); + + for (j = 0; j < nr_slabs; j++) { + if (moreheaders && ((j % height) == 0)) slabheader(); - if (procps_slabinfo_node_getchain(slab_info, result, nodeid) < 0) - xerrx(EXIT_FAILURE, - _("Error getting slabinfo results")); - slab_name = procps_slabinfo_node_getname(slab_info, nodeid); - printf(format, - slab_name?slab_name:"(unknown)", - SLAB_VAL(stat_AOBJS), SLAB_VAL(stat_OBJS), - SLAB_VAL(stat_OSIZE), SLAB_VAL(stat_OPS)); + SLAB_STR(v[j], slab_NAME), + SLAB_NUM(v[j], slab_AOBJS), SLAB_NUM(v[j], slab_OBJS), + SLAB_NUM(v[j], slab_OSIZE), SLAB_NUM(v[j], slab_OPS)); } if (infinite_updates || i+1 < num_updates) sleep(sleep_time); } + procps_slabinfo_unref(&slab_info); + #undef CHAINS_ALLOC + #undef MAX_ITEMS + #undef SLAB_NUM + #undef SLAB_STR } static void disksum_format(void) @@ -742,6 +738,11 @@ static void sum_format(void) xerrx(EXIT_FAILURE, _("Unable to read vmstat information")); + if (procps_meminfo_new(&mem_info) < 0) + xerrx(EXIT_FAILURE, _("Unable to create meminfo structure")); + if (procps_meminfo_read(mem_info) < 0) + xerrx(EXIT_FAILURE, _("Unable to read meminfo information")); + printf(_("%13lu %s total memory\n"), unitConvert(procps_meminfo_get( mem_info, PROCPS_MEM_TOTAL)), szDataUnit); printf(_("%13lu %s used memory\n"), unitConvert(procps_meminfo_get( -- 2.40.0