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vircgroup: introduce virCgroupV2GetCpuacctUsage

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Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
This commit is contained in:
Pavel Hrdina 2018-08-17 16:59:49 +02:00
parent 5a4d90ae6a
commit 567fcbdca5
1 changed files with 33 additions and 0 deletions
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33
src/util/vircgroupv2.c
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@ -1455,6 +1455,37 @@ virCgroupV2SupportsCpuBW(virCgroupPtr cgroup)
}
static int
virCgroupV2GetCpuacctUsage(virCgroupPtr group,
unsigned long long *usage)
{
VIR_AUTOFREE(char *) str = NULL;
char *tmp;
if (virCgroupGetValueStr(group, VIR_CGROUP_CONTROLLER_CPUACCT,
"cpu.stat", &str) < 0) {
return -1;
}
if (!(tmp = strstr(str, "usage_usec "))) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("cannot parse cpu usage stat '%s'"), str);
return -1;
}
tmp += strlen("usage_usec ");
if (virStrToLong_ull(tmp, &tmp, 10, usage) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to parse value '%s' as number."), tmp);
return -1;
}
*usage *= 1000;
return 0;
}
virCgroupBackend virCgroupV2Backend = {
.type = VIR_CGROUP_BACKEND_TYPE_V2,
@ -1510,6 +1541,8 @@ virCgroupBackend virCgroupV2Backend = {
.setCpuCfsQuota = virCgroupV2SetCpuCfsQuota,
.getCpuCfsQuota = virCgroupV2GetCpuCfsQuota,
.supportsCpuBW = virCgroupV2SupportsCpuBW,
.getCpuacctUsage = virCgroupV2GetCpuacctUsage,
};