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Add new public API virDomainGetCPUStats()

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add new API virDomainGetCPUStats() for getting cpu accounting information
per real cpus which is used by a domain.  The API is designed to allow
future extensions for additional statistics.

based on ideas by Lai Jiangshan and Eric Blake.

* src/libvirt_public.syms: add API for LIBVIRT_0.9.10
* src/libvirt.c: define virDomainGetCPUStats()
* include/libvirt/libvirt.h.in: add virDomainGetCPUStats() header
* src/driver.h: add driver API
* python/generator.py: add python API (as not implemented)

Signed-off-by: Eric Blake <eblake@redhat.com>
This commit is contained in:
KAMEZAWA Hiroyuki
2012-01-28 15:20:28 +09:00
committed by Eric Blake
parent 7c741763db
commit e1eea7470b
5 changed files with 153 additions and 1 deletions
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14
include/libvirt/libvirt.h.in
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@@ -3811,6 +3811,20 @@ int virConnectSetKeepAlive(virConnectPtr conn,
int interval,
unsigned int count);
/* Collecting CPU statistics */
/**
* VIR_DOMAIN_CPU_STATS_CPUTIME:
* cpu usage in nanoseconds, as a ullong
*/
#define VIR_DOMAIN_CPU_STATS_CPUTIME "cpu_time"
int virDomainGetCPUStats(virDomainPtr domain,
virTypedParameterPtr params,
unsigned int nparams,
int start_cpu,
unsigned int ncpus,
unsigned int flags);
#ifdef __cplusplus
}
#endif