virNodeGetCPUStats: Implement remote protocol
Signed-off-by: Minoru Usui <usui@xxxxxxxxxxxxxxxxx>
---
daemon/remote.c | 76 ++++++++++++++++++++++++++++++++++++++++++
src/remote/remote_driver.c | 65 +++++++++++++++++++++++++++++++++++
src/remote/remote_protocol.x | 21 +++++++++++-
3 files changed, 161 insertions(+), 1 deletions(-)
diff --git a/daemon/remote.c b/daemon/remote.c
index 80783b3..fb603f4 100644
--- a/daemon/remote.c
+++ b/daemon/remote.c
@@ -1788,6 +1788,82 @@ cleanup:
return rv;
}
+static int
+remoteDispatchNodeGetCPUStats (struct qemud_server *server ATTRIBUTE_UNUSED,
+ struct qemud_client *client ATTRIBUTE_UNUSED,
+ virConnectPtr conn,
+ remote_message_header *hdr ATTRIBUTE_UNUSED,
+ remote_error *rerr,
+ remote_node_get_cpu_stats_args *args,
+ remote_node_get_cpu_stats_ret *ret)
+{
+ virCPUStatsPtr params = NULL;
+ int i;
+ int nparams = args->nparams;
+ unsigned int flags;
+ int rv = -1;
+
+ if (!conn) {
+ virNetError(VIR_ERR_INTERNAL_ERROR, "%s", _("connection not open"));
+ goto cleanup;
+ }
+
+ flags = args->flags;
+
+ if (nparams > REMOTE_NODE_CPU_STATS_MAX) {
+ virNetError(VIR_ERR_INTERNAL_ERROR, "%s", _("nparams too large"));
+ goto cleanup;
+ }
+ if (VIR_ALLOC_N(params, nparams) < 0) {
+ virReportOOMError();
+ goto cleanup;
+ }
+
+ if (virNodeGetCPUStats(conn, params, &nparams, flags) < 0)
+ goto cleanup;
+
+ /* In this case, we need to send back the number of stats
+ * supported
+ */
+ if (args->nparams == 0) {
+ ret->nparams = nparams;
+ goto success;
+ }
+
+ /* Serialise the memory parameters. */
+ ret->params.params_len = nparams;
+ if (VIR_ALLOC_N(ret->params.params_val, nparams) < 0)
+ goto no_memory;
+
+ for (i = 0; i < nparams; ++i) {
+ /* remoteDispatchClientRequest will free this: */
+ ret->params.params_val[i].field = strdup(params[i].field);
+ if (ret->params.params_val[i].field == NULL)
+ goto no_memory;
+
+ ret->params.params_val[i].value = params[i].value;
+ }
+
+success:
+ rv = 0;
+
+cleanup:
+ if (rv < 0) {
+ remoteDispatchError(rerr);
+ if (ret->params.params_val) {
+ for (i = 0; i < nparams; i++)
+ VIR_FREE(ret->params.params_val[i].field);
+ VIR_FREE(ret->params.params_val);
+ }
+ }
+ VIR_FREE(params);
+ return rv;
+
+no_memory:
+ virReportOOMError();
+ goto cleanup;
+}
+
/*-------------------------------------------------------------*/
static int
diff --git a/src/remote/remote_driver.c b/src/remote/remote_driver.c
index 1691dab..924ea97 100644
--- a/src/remote/remote_driver.c
+++ b/src/remote/remote_driver.c
@@ -1694,6 +1694,70 @@ done:
}
static int
+remoteNodeGetCPUStats (virConnectPtr conn,
+ virCPUStatsPtr params, int *nparams,
+ unsigned int flags)
+{
+ int rv = -1;
+ remote_node_get_cpu_stats_args args;
+ remote_node_get_cpu_stats_ret ret;
+ int i = -1;
+ struct private_data *priv = conn->privateData;
+
+ remoteDriverLock(priv);
+
+ args.nparams = *nparams;
+ args.flags = flags;
+
+ memset (&ret, 0, sizeof ret);
+ if (call (conn, priv, 0, REMOTE_PROC_NODE_GET_CPU_STATS,
+ (xdrproc_t) xdr_remote_node_get_cpu_stats_args,
+ (char *) &args,
+ (xdrproc_t) xdr_remote_node_get_cpu_stats_ret,
+ (char *) &ret) == -1)
+ goto done;
+
+ /* Check the length of the returned list carefully. */
+ if (ret.params.params_len > REMOTE_NODE_CPU_STATS_MAX ||
+ ret.params.params_len > *nparams) {
+ remoteError(VIR_ERR_RPC, "%s",
+ _("remoteNodeGetCPUStats: "
+ "returned number of stats exceeds limit"));
+ goto cleanup;
+ }
+ /* Handle the case when the caller does not know the number of stats
+ * and is asking for the number of stats supported
+ */
+ if (*nparams == 0) {
+ *nparams = ret.nparams;
+ rv = 0;
+ goto cleanup;
+ }
+
+ *nparams = ret.params.params_len;
+
+ /* Deserialise the result. */
+ for (i = 0; i < *nparams; ++i) {
+ if (virStrcpyStatic(params[i].field, ret.params.params_val[i].field) == NULL) {
+ remoteError(VIR_ERR_INTERNAL_ERROR,
+ _("Stats %s too big for destination"),
+ ret.params.params_val[i].field);
+ goto cleanup;
+ }
+ params[i].value = ret.params.params_val[i].value;
+ }
+
+ rv = 0;
+
+cleanup:
+ xdr_free ((xdrproc_t) xdr_remote_node_get_cpu_stats_ret,
+ (char *) &ret);
+done:
+ remoteDriverUnlock(priv);
+ return rv;
+}
+
+static int
remoteNodeGetCellsFreeMemory(virConnectPtr conn,
unsigned long long *freeMems,
int startCell,
@@ -6823,6 +6887,7 @@ static virDriver remote_driver = {
.domainBlockPeek = remoteDomainBlockPeek, /* 0.4.2 */
.domainMemoryPeek = remoteDomainMemoryPeek, /* 0.4.2 */
.domainGetBlockInfo = remoteDomainGetBlockInfo, /* 0.8.1 */
+ .nodeGetCPUStats = remoteNodeGetCPUStats, /* 0.9.2 */
.nodeGetCellsFreeMemory = remoteNodeGetCellsFreeMemory, /* 0.3.3 */
.nodeGetFreeMemory = remoteNodeGetFreeMemory, /* 0.3.3 */
.domainEventRegister = remoteDomainEventRegister, /* 0.5.0 */
diff --git a/src/remote/remote_protocol.x b/src/remote/remote_protocol.x
index f0da95d..30cb934 100644
--- a/src/remote/remote_protocol.x
+++ b/src/remote/remote_protocol.x
@@ -134,6 +134,9 @@ const REMOTE_DOMAIN_BLKIO_PARAMETERS_MAX = 16;
/* Upper limit on list of memory parameters. */
const REMOTE_DOMAIN_MEMORY_PARAMETERS_MAX = 16;
+/* Upper limit on list of cpu stats. */
+const REMOTE_NODE_CPU_STATS_MAX = 16;
+
/* Upper limit on number of NUMA cells */
const REMOTE_NODE_MAX_CELLS = 1024;
@@ -359,6 +362,11 @@ struct remote_memory_param {
remote_memory_param_value value;
};
+struct remote_node_get_cpu_stats {
+ remote_nonnull_string field;
+ unsigned hyper value;
+};
+
/*----- Calls. -----*/
/* For each call we may have a 'remote_CALL_args' and 'remote_CALL_ret'
@@ -440,6 +448,16 @@ struct remote_get_capabilities_ret {
remote_nonnull_string capabilities;
};
+struct remote_node_get_cpu_stats_args {
+ int nparams;
+ unsigned int flags;
+};
+
+struct remote_node_get_cpu_stats_ret {
+ remote_node_get_cpu_stats params<REMOTE_NODE_CPU_STATS_MAX>;
+ int nparams;
+};
+
struct remote_node_get_cells_free_memory_args {
int startCell;
int maxCells;
@@ -2291,7 +2309,8 @@ enum remote_procedure {
REMOTE_PROC_DOMAIN_MIGRATE_PERFORM3 = 216, /* skipgen skipgen */
REMOTE_PROC_DOMAIN_MIGRATE_FINISH3 = 217, /* skipgen skipgen */
REMOTE_PROC_DOMAIN_MIGRATE_CONFIRM3 = 218, /* skipgen skipgen */
- REMOTE_PROC_DOMAIN_SET_SCHEDULER_PARAMETERS_FLAGS = 219 /* skipgen skipgen */
+ REMOTE_PROC_DOMAIN_SET_SCHEDULER_PARAMETERS_FLAGS = 219, /* skipgen skipgen */
+ REMOTE_PROC_NODE_GET_CPU_STATS = 220 /* skipgen skipgen */
/*
* Notice how the entries are grouped in sets of 10 ?
--
1.7.1
--
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