New API to retrieve current server workerpool specs. Since it uses typed
parameters, more specs to retrieve can be further included in the pool of
supported ones.
---
daemon/admin.c | 59 +++++++++++++++++++++++++++++++++++
daemon/admin_server.c | 69 +++++++++++++++++++++++++++++++++++++++++
daemon/admin_server.h | 6 ++++
include/libvirt/libvirt-admin.h | 6 ++++
po/POTFILES.in | 1 +
src/admin/admin_protocol.x | 20 ++++++++++--
src/admin/admin_remote.c | 43 +++++++++++++++++++++++++
src/admin_protocol-structs | 11 +++++++
src/libvirt-admin.c | 46 +++++++++++++++++++++++++++
src/libvirt_admin_private.syms | 2 ++
src/libvirt_admin_public.syms | 1 +
src/rpc/virnetserver.c | 22 +++++++++++++
src/rpc/virnetserver.h | 13 ++++++++
13 files changed, 296 insertions(+), 3 deletions(-)
diff --git a/daemon/admin.c b/daemon/admin.c
index 3169cdd..5335cce 100644
--- a/daemon/admin.c
+++ b/daemon/admin.c
@@ -37,6 +37,7 @@
#include "virnetserver.h"
#include "virstring.h"
#include "virthreadjob.h"
+#include "virtypedparam.h"
#define VIR_FROM_THIS VIR_FROM_ADMIN
@@ -133,4 +134,62 @@ adminConnectGetLibVersion(virNetDaemonPtr dmn ATTRIBUTE_UNUSED,
return 0;
}
+static int
+adminDispatchServerGetThreadpoolParameters(virNetServerPtr server ATTRIBUTE_UNUSED,
+ virNetServerClientPtr client,
+ virNetMessagePtr msg ATTRIBUTE_UNUSED,
+ virNetMessageErrorPtr rerr,
+ struct admin_server_get_threadpool_parameters_args *args,
+ struct admin_server_get_threadpool_parameters_ret *ret)
+{
+ int rv = -1;
+ virNetServerPtr srv = NULL;
+ virTypedParameterPtr params = NULL;
+ int nparams = 0;
+ struct daemonAdmClientPrivate *priv =
+ virNetServerClientGetPrivateData(client);
+
+ if (!(srv = virNetDaemonGetServer(priv->dmn, args->server.name))) {
+ virReportError(VIR_ERR_NO_SERVER,
+ _("no server with matching name '%s' found"),
+ args->server.name);
+ goto cleanup;
+ }
+
+ if (adminDaemonGetThreadPoolParameters(srv, ¶ms, &nparams,
+ args->flags) < 0)
+ goto cleanup;
+
+ if (nparams > ADMIN_SERVER_THREADPOOL_PARAMETERS_MAX) {
+ virReportError(VIR_ERR_INTERNAL_ERROR,
+ _("Number of threadpool parameters %d exceeds max "
+ "allowed limit: %d"), nparams,
+ ADMIN_SERVER_THREADPOOL_PARAMETERS_MAX);
+ goto cleanup;
+ }
+
+ if (nparams) {
+ if (VIR_ALLOC_N(ret->params.params_val, nparams) < 0)
+ goto cleanup;
+
+ ret->params.params_len = nparams;
+
+ if (virTypedParamsSerialize(params, nparams,
+ (virTypedParameterRemotePtr *) &ret->params.params_val,
+ &ret->params.params_len, 0) < 0)
+ goto cleanup;
+ } else {
+ ret->params.params_len = 0;
+ ret->params.params_val = NULL;
+ }
+
+ rv = 0;
+ cleanup:
+ if (rv < 0)
+ virNetMessageSaveError(rerr);
+
+ virTypedParamsFree(params, nparams);
+ virObjectUnref(srv);
+ return rv;
+}
#include "admin_dispatch.h"
diff --git a/daemon/admin_server.c b/daemon/admin_server.c
index 1d30ea5..00a310b 100644
--- a/daemon/admin_server.c
+++ b/daemon/admin_server.c
@@ -31,6 +31,7 @@
#include "virnetdaemon.h"
#include "virnetserver.h"
#include "virstring.h"
+#include "virthreadpool.h"
#define VIR_FROM_THIS VIR_FROM_ADMIN
@@ -68,3 +69,71 @@ adminConnectLookupServer(virNetDaemonPtr dmn,
return virNetDaemonGetServer(dmn, name);
}
+
+int
+adminDaemonGetThreadPoolParameters(virNetServerPtr srv,
+ virTypedParameterPtr *params,
+ int *nparams,
+ unsigned int flags)
+{
+ int ret = -1;
+ int maxparams = 0;
+ size_t minWorkers;
+ size_t maxWorkers;
+ size_t nWorkers;
+ size_t freeWorkers;
+ size_t nPrioWorkers;
+ size_t jobQueueDepth;
+ virTypedParameterPtr tmpparams = NULL;
+
+ virCheckFlags(0, -1);
+
+ if (virNetServerGetThreadPoolParameters(srv, &minWorkers, &maxWorkers,
+ &nWorkers, &freeWorkers,
+ &nPrioWorkers,
+ &jobQueueDepth) < 0) {
+ virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
+ _("Unable to retrieve threadpool parameters"));
+ goto cleanup;
+ }
+
+ if (virTypedParamsAddUInt(&tmpparams, nparams,
+ &maxparams, VIR_THREADPOOL_WORKERS_MIN,
+ minWorkers) < 0)
+ goto cleanup;
+
+ if (virTypedParamsAddUInt(&tmpparams, nparams,
+ &maxparams, VIR_THREADPOOL_WORKERS_MAX,
+ maxWorkers) < 0)
+ goto cleanup;
+
+ if (virTypedParamsAddUInt(&tmpparams, nparams,
+ &maxparams, VIR_THREADPOOL_WORKERS_CURRENT,
+ nWorkers) < 0)
+ goto cleanup;
+
+ if (virTypedParamsAddUInt(&tmpparams, nparams,
+ &maxparams, VIR_THREADPOOL_WORKERS_FREE,
+ freeWorkers) < 0)
+ goto cleanup;
+
+ if (virTypedParamsAddUInt(&tmpparams, nparams,
+ &maxparams, VIR_THREADPOOL_WORKERS_PRIORITY,
+ nPrioWorkers) < 0)
+ goto cleanup;
+
+ if (virTypedParamsAddUInt(&tmpparams, nparams,
+ &maxparams, VIR_THREADPOOL_JOB_QUEUE_DEPTH,
+ jobQueueDepth) < 0)
+ goto cleanup;
+
+ *params = tmpparams;
+ tmpparams = NULL;
+ ret = 0;
+
+ cleanup:
+ if (tmpparams)
+ virTypedParamsFree(tmpparams, *nparams);
+
+ return ret;
+}
diff --git a/daemon/admin_server.h b/daemon/admin_server.h
index 9d0adf0..7aa7727 100644
--- a/daemon/admin_server.h
+++ b/daemon/admin_server.h
@@ -35,4 +35,10 @@ virNetServerPtr adminConnectLookupServer(virNetDaemonPtr dmn,
const char *name,
unsigned int flags);
+int
+adminDaemonGetThreadPoolParameters(virNetServerPtr srv,
+ virTypedParameterPtr *params,
+ int *nparams,
+ unsigned int flags);
+
#endif /* __LIBVIRTD_ADMIN_SERVER_H__ */
diff --git a/include/libvirt/libvirt-admin.h b/include/libvirt/libvirt-admin.h
index 35849b1..39c2c02 100644
--- a/include/libvirt/libvirt-admin.h
+++ b/include/libvirt/libvirt-admin.h
@@ -170,6 +170,12 @@ virAdmServerPtr virAdmConnectLookupServer(virAdmConnectPtr conn,
# define VIR_THREADPOOL_JOB_QUEUE_DEPTH "jobQueueDepth"
+/* Tunables for a server workerpool */
+int virAdmServerGetThreadPoolParameters(virAdmServerPtr srv,
+ virTypedParameterPtr *params,
+ int *nparams,
+ unsigned int flags);
+
# ifdef __cplusplus
}
# endif
diff --git a/po/POTFILES.in b/po/POTFILES.in
index dabc581..50d205d 100644
--- a/po/POTFILES.in
+++ b/po/POTFILES.in
@@ -1,5 +1,6 @@
daemon/admin.c
daemon/admin_dispatch.h
+daemon/admin_server.c
daemon/libvirtd-config.c
daemon/libvirtd.c
daemon/qemu_dispatch.h
diff --git a/src/admin/admin_protocol.x b/src/admin/admin_protocol.x
index 4ab2323..46b1b5c 100644
--- a/src/admin/admin_protocol.x
+++ b/src/admin/admin_protocol.x
@@ -36,8 +36,8 @@ const ADMIN_STRING_MAX = 4194304;
/* Upper limit on list of servers */
const ADMIN_SERVER_LIST_MAX = 16384;
-/* Upper limit on number of threadpool stats */
-const ADMIN_SERVER_THREADPOOL_STATS_MAX = 32;
+/* Upper limit on number of threadpool parameters */
+const ADMIN_SERVER_THREADPOOL_PARAMETERS_MAX = 32;
/* A long string, which may NOT be NULL. */
typedef string admin_nonnull_string<ADMIN_STRING_MAX>;
@@ -101,6 +101,15 @@ struct admin_connect_lookup_server_ret {
admin_nonnull_server srv;
};
+struct admin_server_get_threadpool_parameters_args {
+ admin_nonnull_server server;
+ unsigned int flags;
+};
+
+struct admin_server_get_threadpool_parameters_ret {
+ admin_typed_param params<ADMIN_SERVER_THREADPOOL_PARAMETERS_MAX>;
+};
+
/* Define the program number, protocol version and procedure numbers here. */
const ADMIN_PROGRAM = 0x06900690;
const ADMIN_PROTOCOL_VERSION = 1;
@@ -146,5 +155,10 @@ enum admin_procedure {
/**
* @generate: both
*/
- ADMIN_PROC_CONNECT_LOOKUP_SERVER = 5
+ ADMIN_PROC_CONNECT_LOOKUP_SERVER = 5,
+
+ /**
+ * @generate: none
+ */
+ ADMIN_PROC_SERVER_GET_THREADPOOL_PARAMETERS = 6
};
diff --git a/src/admin/admin_remote.c b/src/admin/admin_remote.c
index 21e0dd3..64942e7 100644
--- a/src/admin/admin_remote.c
+++ b/src/admin/admin_remote.c
@@ -22,6 +22,7 @@
#include <config.h>
#include <rpc/rpc.h>
+#include "virtypedparam.h"
#include "admin_protocol.h"
typedef struct _remoteAdminPriv remoteAdminPriv;
@@ -54,6 +55,11 @@ get_nonnull_server(virAdmConnectPtr conn, admin_nonnull_server server)
return virAdmGetServer(conn, server.name);
}
+static void
+make_nonnull_server(admin_nonnull_server *srv_dst, virAdmServerPtr srv_src)
+{
+ srv_dst->name = srv_src->name;
+}
static int
callFull(virAdmConnectPtr conn ATTRIBUTE_UNUSED,
@@ -224,3 +230,40 @@ remoteAdminPrivNew(const char *sock_path)
virObjectUnref(priv);
return NULL;
}
+
+static int
+remoteAdminServerGetThreadPoolParameters(virAdmServerPtr srv,
+ virTypedParameterPtr *params,
+ int *nparams,
+ unsigned int flags)
+{
+ int rv = -1;
+ remoteAdminPrivPtr priv = srv->conn->privateData;
+ admin_server_get_threadpool_parameters_args args;
+ admin_server_get_threadpool_parameters_ret ret;
+
+ args.flags = flags;
+ make_nonnull_server(&args.server, srv);
+
+ memset(&ret, 0, sizeof(ret));
+ virObjectLock(priv);
+
+ if (call(srv->conn, 0, ADMIN_PROC_SERVER_GET_THREADPOOL_PARAMETERS,
+ (xdrproc_t)xdr_admin_server_get_threadpool_parameters_args, (char *) &args,
+ (xdrproc_t)xdr_admin_server_get_threadpool_parameters_ret, (char *) &ret) == -1)
+ goto cleanup;
+
+ if (virTypedParamsDeserialize((virTypedParameterRemotePtr) ret.params.params_val,
+ ret.params.params_len,
+ ADMIN_SERVER_THREADPOOL_PARAMETERS_MAX,
+ params,
+ nparams) < 0)
+ goto cleanup;
+
+ rv = 0;
+ xdr_free((xdrproc_t)xdr_admin_server_get_threadpool_parameters_ret, (char *) &ret);
+
+ cleanup:
+ virObjectUnlock(priv);
+ return rv;
+}
diff --git a/src/admin_protocol-structs b/src/admin_protocol-structs
index 26c8443..8a7bf88 100644
--- a/src/admin_protocol-structs
+++ b/src/admin_protocol-structs
@@ -51,10 +51,21 @@ struct admin_connect_lookup_server_args {
struct admin_connect_lookup_server_ret {
admin_nonnull_server srv;
};
+struct admin_server_get_threadpool_parameters_args {
+ admin_nonnull_server server;
+ u_int flags;
+};
+struct admin_server_get_threadpool_parameters_ret {
+ struct {
+ u_int params_len;
+ admin_typed_param * params_val;
+ } params;
+};
enum admin_procedure {
ADMIN_PROC_CONNECT_OPEN = 1,
ADMIN_PROC_CONNECT_CLOSE = 2,
ADMIN_PROC_CONNECT_GET_LIB_VERSION = 3,
ADMIN_PROC_CONNECT_LIST_SERVERS = 4,
ADMIN_PROC_CONNECT_LOOKUP_SERVER = 5,
+ ADMIN_PROC_SERVER_GET_THREADPOOL_PARAMETERS = 6,
};
diff --git a/src/libvirt-admin.c b/src/libvirt-admin.c
index 54af90c..c528f79 100644
--- a/src/libvirt-admin.c
+++ b/src/libvirt-admin.c
@@ -674,3 +674,49 @@ virAdmConnectLookupServer(virAdmConnectPtr conn,
virDispatchError(NULL);
return ret;
}
+
+/**
+ * virAdmServerGetThreadPoolParameters:
+ * @srv: a valid server object reference
+ * @params: a pointer which will be allocated to store all returned parameters
+ * @nparams: a pointer which will hold the number of params returned in @params
+ * @flags: extra flags for virAdmServerGetThreadPoolStatsFlags
+ *
+ * This methods retrieves threadpool parameters from @srv. Upon successful
+ * completion, @params will be allocated automatically to hold all returned
+ * params and setting @nparams accordingly.
+ * When extracting parameters from @params, following search keys are
+ * supported:
+ * VIR_THREADPOOL_WORKERS_MIN
+ * VIR_THREADPOOL_WORKERS_MAX
+ * VIR_THREADPOOL_WORKERS_PRIORITY
+ * VIR_THREADPOOL_WORKERS_FREE
+ * VIR_THREADPOOL_WORKERS_CURRENT
+ *
+ * Returns 0 on success, -1 in case of an error.
+ */
+int
+virAdmServerGetThreadPoolParameters(virAdmServerPtr srv,
+ virTypedParameterPtr *params,
+ int *nparams,
+ unsigned int flags)
+{
+ int ret = -1;
+
+ VIR_DEBUG("srv=%p, params=%p, nparams=%p, flags=%x",
+ srv, params, nparams, flags);
+
+ virResetLastError();
+
+ virCheckAdmServerReturn(srv, -1);
+ virCheckNonNullArgGoto(params, error);
+
+ if ((ret = remoteAdminServerGetThreadPoolParameters(srv, params, nparams,
+ flags)) < 0)
+ goto error;
+
+ return ret;
+ error:
+ virDispatchError(NULL);
+ return -1;
+}
diff --git a/src/libvirt_admin_private.syms b/src/libvirt_admin_private.syms
index 268f1e6..b05067c 100644
--- a/src/libvirt_admin_private.syms
+++ b/src/libvirt_admin_private.syms
@@ -12,6 +12,8 @@ xdr_admin_connect_list_servers_ret;
xdr_admin_connect_lookup_server_args;
xdr_admin_connect_lookup_server_ret;
xdr_admin_connect_open_args;
+xdr_admin_server_get_threadpool_parameters_args;
+xdr_admin_server_get_threadpool_parameters_ret;
# datatypes.h
virAdmConnectClass;
diff --git a/src/libvirt_admin_public.syms b/src/libvirt_admin_public.syms
index 58d085e..0a12b5f 100644
--- a/src/libvirt_admin_public.syms
+++ b/src/libvirt_admin_public.syms
@@ -23,6 +23,7 @@ LIBVIRT_ADMIN_1.3.0 {
virAdmConnectUnregisterCloseCallback;
virAdmConnectListServers;
virAdmServerGetName;
+ virAdmServerGetThreadPoolParameters;
virAdmServerFree;
virAdmConnectLookupServer;
};
diff --git a/src/rpc/virnetserver.c b/src/rpc/virnetserver.c
index cf48e50..3878547 100644
--- a/src/rpc/virnetserver.c
+++ b/src/rpc/virnetserver.c
@@ -877,3 +877,25 @@ virNetServerGetName(virNetServerPtr srv)
{
return srv->name;
}
+
+int
+virNetServerGetThreadPoolParameters(virNetServerPtr srv,
+ size_t *minWorkers,
+ size_t *maxWorkers,
+ size_t *nWorkers,
+ size_t *freeWorkers,
+ size_t *nPrioWorkers,
+ size_t *jobQueueDepth)
+{
+ virObjectLock(srv);
+
+ *minWorkers = virThreadPoolGetMinWorkers(srv->workers);
+ *maxWorkers = virThreadPoolGetMaxWorkers(srv->workers);
+ *freeWorkers = virThreadPoolGetFreeWorkers(srv->workers);
+ *nWorkers = virThreadPoolGetCurrentWorkers(srv->workers);
+ *nPrioWorkers = virThreadPoolGetPriorityWorkers(srv->workers);
+ *jobQueueDepth = virThreadPoolGetJobQueueDepth(srv->workers);
+
+ virObjectUnlock(srv);
+ return 0;
+}
diff --git a/src/rpc/virnetserver.h b/src/rpc/virnetserver.h
index aa24440..41c440d 100644
--- a/src/rpc/virnetserver.h
+++ b/src/rpc/virnetserver.h
@@ -89,4 +89,17 @@ int virNetServerStart(virNetServerPtr srv);
const char *virNetServerGetName(virNetServerPtr srv);
+int
+virNetServerGetThreadPoolParameters(virNetServerPtr srv,
+ size_t *minWorkers,
+ size_t *maxWorkers,
+ size_t *nWorkers,
+ size_t *freeWorkers,
+ size_t *nPrioWorkers,
+ size_t *jobQueueDepth);
+
+int virNetServerSetThreadPoolParameters(virNetServerPtr srv,
+ long long int minWorkers,
+ long long int maxWorkers,
+ long long int prioWorkers);
#endif /* __VIR_NET_SERVER_H__ */
--
2.4.3
--
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