On Tue, Jun 07, 2011 at 09:58:47AM +0900, Minoru Usui wrote:
> virNodeGetCPUStats: Expose new API
>
> Signed-off-by: Minoru Usui <usui@xxxxxxxxxxxxxxxxx>
> ---
> include/libvirt/libvirt.h.in | 75 +++++++++++++++++++++++++++++++++++++++++-
> src/libvirt_public.syms | 5 +++
> 2 files changed, 79 insertions(+), 1 deletions(-)
>
> diff --git a/include/libvirt/libvirt.h.in b/include/libvirt/libvirt.h.in
> index 8058229..43e59a7 100644
> --- a/include/libvirt/libvirt.h.in
> +++ b/include/libvirt/libvirt.h.in
> @@ -194,7 +194,6 @@ typedef struct _virStream virStream;
> */
> typedef virStream *virStreamPtr;
>
> -
> /**
> * VIR_SECURITY_LABEL_BUFLEN:
> *
> @@ -280,6 +279,66 @@ struct _virNodeInfo {
> unsigned int threads;/* number of threads per core */
> };
>
> +/**
> + * VIR_CPU_STATS_FIELD_LENGTH:
> + *
> + * Macro providing the field length of virNodeCPUStats
> + */
> +#define VIR_CPU_STATS_FIELD_LENGTH 80
> +
> +/**
> + * VIR_CPU_STATS_ALL_CPUS:
> + *
> + * Macro for the total CPU time/utilization
> + */
> +#define VIR_CPU_STATS_ALL_CPUS -1
> +
> +/**
> + * VIR_CPU_STATS_KERNEL:
> + *
> + * Macro for the cumulative CPU time which spends by kernel,
> + * when the node booting up.(in nanoseconds).
> + */
> +#define VIR_CPU_STATS_KERNEL "kernel"
> +
> +/**
> + * The cumulative CPU time which spends by user processes,
> + * when the node booting up.(in nanoseconds).
> + */
> +#define VIR_CPU_STATS_USER "user"
> +
> +/**
> + * The cumulative idle CPU time,
> + * when the node booting up.(in nanoseconds).
> + */
> +#define VIR_CPU_STATS_IDLE "idle"
> +
> +/**
> + * The cumulative I/O wait CPU time,
> + * when the node booting up.(in nanoseconds).
> + */
> +#define VIR_CPU_STATS_IOWAIT "iowait"
> +
> +/**
> + * The CPU utilization.
> + * The usage value is in percent and 100% represents all CPUs on
> + * the server.
> + */
> +#define VIR_CPU_STATS_UTILIZATION "utilization"
> +
> +/**
> + * virCPUStats:
> + *
> + * a virNodeCPUStats is a structure filled by virNodeGetCPUStats()
> + * and providing the information for the cpu stats of the node.
> + */
> +typedef struct _virCPUStats virCPUStats;
> +
> +struct _virCPUStats {
> + char field[VIR_CPU_STATS_FIELD_LENGTH];
> + unsigned long long value;
> +};
> +
>
> /* Common data types shared among interfaces with name/type/value lists. */
>
> @@ -544,6 +603,14 @@ int virDomainMigrateSetMaxSpeed(virDomainPtr domain,
> typedef virNodeInfo *virNodeInfoPtr;
>
> /**
> + * virCPUStatsPtr:
> + *
> + * a virCPUStatsPtr is a pointer to a virCPUStats structure.
> + */
> +
> +typedef virCPUStats *virCPUStatsPtr;
> +
> +/**
> * virConnectFlags
> *
> * Flags when opening a connection to a hypervisor
> @@ -677,6 +744,12 @@ int virNodeGetInfo (virConnectPtr conn,
> virNodeInfoPtr info);
> char * virConnectGetCapabilities (virConnectPtr conn);
>
> +int virNodeGetCPUStats (virConnectPtr conn,
> + int cpuNum,
> + virCPUStatsPtr params,
> + int *nparams,
> + unsigned int flags);
> +
> unsigned long long virNodeGetFreeMemory (virConnectPtr conn);
>
> int virNodeGetSecurityModel (virConnectPtr conn,
> diff --git a/src/libvirt_public.syms b/src/libvirt_public.syms
> index 4d4299a..271b8e3 100644
> --- a/src/libvirt_public.syms
> +++ b/src/libvirt_public.syms
> @@ -450,4 +450,9 @@ LIBVIRT_0.9.2 {
> virInterfaceChangeRollback;
> } LIBVIRT_0.9.0;
>
> +LIBVIRT_0.9.3 {
> + global:
> + virNodeGetCPUStats;
> +} LIBVIRT_0.9.2;
> +
> # .... define new API here using predicted next version number ....
ACK
Daniel
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