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vircgroup: Introduce virCgroupGetMemoryStat
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
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@ -1532,6 +1532,7 @@ virCgroupGetDomainTotalCpuStats;
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virCgroupGetFreezerState;
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virCgroupGetFreezerState;
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virCgroupGetMemoryHardLimit;
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virCgroupGetMemoryHardLimit;
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virCgroupGetMemorySoftLimit;
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virCgroupGetMemorySoftLimit;
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virCgroupGetMemoryStat;
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virCgroupGetMemoryUsage;
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virCgroupGetMemoryUsage;
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virCgroupGetMemSwapHardLimit;
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virCgroupGetMemSwapHardLimit;
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virCgroupGetMemSwapUsage;
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virCgroupGetMemSwapUsage;
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@ -2427,6 +2427,94 @@ virCgroupSetMemory(virCgroupPtr group, unsigned long long kb)
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}
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}
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/**
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* virCgroupGetMemoryStat:
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*
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* @group: The cgroup to change memory for
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* @cache: page cache memory in KiB
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* @activeAnon: anonymous and swap cache memory in KiB
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* @inactiveAnon: anonymous and swap cache memory in KiB
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* @activeFile: file-backed memory in KiB
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* @inactiveFile: file-backed memory in KiB
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* @unevictable: memory that cannot be reclaimed KiB
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*
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* Returns: 0 on success, -1 on error
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*/
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int
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virCgroupGetMemoryStat(virCgroupPtr group,
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unsigned long long *cache,
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unsigned long long *activeAnon,
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unsigned long long *inactiveAnon,
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unsigned long long *activeFile,
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unsigned long long *inactiveFile,
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unsigned long long *unevictable)
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{
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int ret = -1;
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char *stat = NULL;
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char *line = NULL;
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unsigned long long cacheVal = 0;
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unsigned long long activeAnonVal = 0;
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unsigned long long inactiveAnonVal = 0;
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unsigned long long activeFileVal = 0;
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unsigned long long inactiveFileVal = 0;
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unsigned long long unevictableVal = 0;
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if (virCgroupGetValueStr(group,
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VIR_CGROUP_CONTROLLER_MEMORY,
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"memory.stat",
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&stat) < 0) {
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return -1;
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}
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line = stat;
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while (line) {
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char *newLine = strchr(line, '\n');
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char *valueStr = strchr(line, ' ');
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unsigned long long value;
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if (newLine)
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*newLine = '\0';
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if (!valueStr) {
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virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
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_("Cannot parse 'memory.stat' cgroup file."));
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goto cleanup;
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}
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*valueStr = '\0';
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if (virStrToLong_ull(valueStr + 1, NULL, 10, &value) < 0)
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goto cleanup;
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if (STREQ(line, "cache"))
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cacheVal = value >> 10;
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else if (STREQ(line, "active_anon"))
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activeAnonVal = value >> 10;
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else if (STREQ(line, "inactive_anon"))
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inactiveAnonVal = value >> 10;
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else if (STREQ(line, "active_file"))
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activeFileVal = value >> 10;
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else if (STREQ(line, "inactive_file"))
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inactiveFileVal = value >> 10;
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else if (STREQ(line, "unevictable"))
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unevictableVal = value >> 10;
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}
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*cache = cacheVal;
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*activeAnon = activeAnonVal;
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*inactiveAnon = inactiveAnonVal;
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*activeFile = activeFileVal;
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*inactiveFile = inactiveFileVal;
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*unevictable = unevictableVal;
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ret = 0;
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cleanup:
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VIR_FREE(stat);
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return ret;
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}
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/**
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/**
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* virCgroupGetMemoryUsage:
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* virCgroupGetMemoryUsage:
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*
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*
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@ -177,6 +177,13 @@ int virCgroupGetBlkioDeviceWriteBps(virCgroupPtr group,
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unsigned long long *wbps);
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unsigned long long *wbps);
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int virCgroupSetMemory(virCgroupPtr group, unsigned long long kb);
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int virCgroupSetMemory(virCgroupPtr group, unsigned long long kb);
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int virCgroupGetMemoryStat(virCgroupPtr group,
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unsigned long long *cache,
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unsigned long long *activeAnon,
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unsigned long long *inactiveAnon,
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unsigned long long *activeFile,
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unsigned long long *inactiveFile,
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unsigned long long *unevictable);
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int virCgroupGetMemoryUsage(virCgroupPtr group, unsigned long *kb);
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int virCgroupGetMemoryUsage(virCgroupPtr group, unsigned long *kb);
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int virCgroupSetMemoryHardLimit(virCgroupPtr group, unsigned long long kb);
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int virCgroupSetMemoryHardLimit(virCgroupPtr group, unsigned long long kb);
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