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[SIGAR-17] Fix possible bad cpu list number on Solaris

This commit is contained in:
Doug MacEachern 2007-02-13 00:21:11 +00:00
parent 769634ef4b
commit 39d8d0930b
2 changed files with 22 additions and 25 deletions
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4
ChangeLog
View File

@ -1,3 +1,7 @@
2007-02-12 Doug MacEachern <dougm@hyperic.com>
* [SIGAR-17] Fix possible bad cpu list number on Solaris
2007-02-07 Doug MacEachern <dougm@hyperic.com>
* Make sure solaris has _POSIX_PTHREAD_SEMANTICS defined

43
src/os/solaris/kstats.c
View File

@ -62,8 +62,7 @@ int sigar_get_multi_kstats(sigar_t *sigar,
int sigar_get_kstats(sigar_t *sigar)
{
kstat_ctl_t *kc = sigar->kc;
kstat_t *ksp;
unsigned int i, ncpu = sysconf(_SC_NPROCESSORS_CONF);
unsigned int i, id, ncpu = sysconf(_SC_NPROCESSORS_CONF);
int is_debug = SIGAR_LOG_IS_DEBUG(sigar);
if (ncpu != sigar->ncpu) {
@ -93,35 +92,29 @@ int sigar_get_kstats(sigar_t *sigar)
sigar->ncpu = ncpu;
for (i=0, ksp=kc->kc_chain; i<ncpu; ksp=ksp->ks_next) {
char *id;
kstat_t *cpu_info;
/* from man p_online:
* ``Processor numbers are integers,
* greater than or equal to 0,
* and are defined by the hardware platform.
* Processor numbers are not necessarily contiguous,
* but "not too sparse."``
* so we maintain our own mapping in ks.cpuid[]
*/
if (!ksp) {
break;
}
if (strncmp(ksp->ks_name, "cpu_stat", 8)) {
/* lookup in order, which kstat chain may not be in */
for (i=0, id=0; i<ncpu; id++) {
kstat_t *cpu_info, *cpu_stat;
if (!(cpu_stat = kstat_lookup(kc, "cpu_stat", id, NULL))) {
continue;
}
/* from man p_online:
* ``Processor numbers are integers,
* greater than or equal to 0,
* and are defined by the hardware platform.
* Processor numbers are not necessarily contiguous,
* but "not too sparse."``
* so we maintain our own mapping in ks.cpuid[]
*/
id = ksp->ks_name;
while (!sigar_isdigit(*id)) {
id++;
}
sigar->ks.cpu[i] = ksp;
sigar->ks.cpuid[i] = atoi(id);
if ((cpu_info = kstat_lookup(kc, "cpu_info", sigar->ks.cpuid[i], NULL))) {
sigar->ks.cpu[i] = cpu_stat;
sigar->ks.cpuid[i] = id;
if ((cpu_info = kstat_lookup(kc, "cpu_info", id, NULL))) {
sigar->ks.cpu_info[i] = cpu_info;
}
if (is_debug) {
sigar_log_printf(sigar, SIGAR_LOG_DEBUG,
"cpu %d id=%d", i, sigar->ks.cpuid[i]);