[libvirt] [PATCH 13/13] Turn virNetClient* into virObject instances
Daniel P. Berrange
berrange at redhat.com
Wed Jul 11 13:35:53 UTC 2012
From: "Daniel P. Berrange" <berrange at redhat.com>
Make all the virNetClient* objects use virObject APIs for
reference counting
Signed-off-by: Daniel P. Berrange <berrange at redhat.com>
---
src/libvirt_probes.d | 4 +-
src/remote/remote_driver.c | 20 ++++-----
src/rpc/gendispatch.pl | 4 +-
src/rpc/virnetclient.c | 96 +++++++++++++++++------------------------
src/rpc/virnetclient.h | 4 +-
src/rpc/virnetclientprogram.c | 43 +++++++++---------
src/rpc/virnetclientprogram.h | 5 +--
src/rpc/virnetclientstream.c | 65 +++++++++++++---------------
src/rpc/virnetclientstream.h | 5 +--
9 files changed, 108 insertions(+), 138 deletions(-)
diff --git a/src/libvirt_probes.d b/src/libvirt_probes.d
index 27f4e9a..9343fa4 100644
--- a/src/libvirt_probes.d
+++ b/src/libvirt_probes.d
@@ -40,9 +40,7 @@ provider libvirt {
# file: src/rpc/virnetclient.c
# prefix: rpc
- probe rpc_client_new(void *client, int refs, void *sock);
- probe rpc_client_ref(void *client, int refs);
- probe rpc_client_free(void *client, int refs);
+ probe rpc_client_new(void *client, void *sock);
probe rpc_client_msg_tx_queue(void *client, int len, int prog, int vers, int proc, int type, int status, int serial);
probe rpc_client_msg_rx(void *client, int len, int prog, int vers, int proc, int type, int status, int serial);
diff --git a/src/remote/remote_driver.c b/src/remote/remote_driver.c
index f2600a8..3420ff8 100644
--- a/src/remote/remote_driver.c
+++ b/src/remote/remote_driver.c
@@ -757,10 +757,10 @@ doRemoteOpen (virConnectPtr conn,
virReportOOMError();
failed:
- virNetClientProgramFree(priv->remoteProgram);
- virNetClientProgramFree(priv->qemuProgram);
+ virObjectUnref(priv->remoteProgram);
+ virObjectUnref(priv->qemuProgram);
virNetClientClose(priv->client);
- virNetClientFree(priv->client);
+ virObjectUnref(priv->client);
priv->client = NULL;
VIR_FREE(priv->hostname);
@@ -911,10 +911,10 @@ doRemoteClose (virConnectPtr conn, struct private_data *priv)
virObjectUnref(priv->tls);
priv->tls = NULL;
virNetClientClose(priv->client);
- virNetClientFree(priv->client);
+ virObjectUnref(priv->client);
priv->client = NULL;
- virNetClientProgramFree(priv->remoteProgram);
- virNetClientProgramFree(priv->qemuProgram);
+ virObjectUnref(priv->remoteProgram);
+ virObjectUnref(priv->qemuProgram);
priv->remoteProgram = priv->qemuProgram = NULL;
/* Free hostname copy */
@@ -4115,7 +4115,7 @@ remoteStreamFinish(virStreamPtr st)
cleanup:
virNetClientRemoveStream(priv->client, privst);
- virNetClientStreamFree(privst);
+ virObjectUnref(privst);
st->privateData = NULL;
st->driver = NULL;
@@ -4144,7 +4144,7 @@ remoteStreamAbort(virStreamPtr st)
cleanup:
virNetClientRemoveStream(priv->client, privst);
- virNetClientStreamFree(privst);
+ virObjectUnref(privst);
st->privateData = NULL;
st->driver = NULL;
@@ -4445,7 +4445,7 @@ remoteDomainMigratePrepareTunnel3(virConnectPtr dconn,
goto done;
if (virNetClientAddStream(priv->client, netst) < 0) {
- virNetClientStreamFree(netst);
+ virObjectUnref(netst);
goto done;
}
@@ -4463,7 +4463,7 @@ remoteDomainMigratePrepareTunnel3(virConnectPtr dconn,
(xdrproc_t) xdr_remote_domain_migrate_prepare_tunnel3_args, (char *) &args,
(xdrproc_t) xdr_remote_domain_migrate_prepare_tunnel3_ret, (char *) &ret) == -1) {
virNetClientRemoveStream(priv->client, netst);
- virNetClientStreamFree(netst);
+ virObjectUnref(netst);
goto done;
}
diff --git a/src/rpc/gendispatch.pl b/src/rpc/gendispatch.pl
index f161ee0..ea31ae9 100755
--- a/src/rpc/gendispatch.pl
+++ b/src/rpc/gendispatch.pl
@@ -1404,7 +1404,7 @@ elsif ($opt_k) {
print " goto done;\n";
print "\n";
print " if (virNetClientAddStream(priv->client, netst) < 0) {\n";
- print " virNetClientStreamFree(netst);\n";
+ print " virObjectUnref(netst);\n";
print " goto done;\n";
print " }";
print "\n";
@@ -1480,7 +1480,7 @@ elsif ($opt_k) {
if ($call->{streamflag} ne "none") {
print " virNetClientRemoveStream(priv->client, netst);\n";
- print " virNetClientStreamFree(netst);\n";
+ print " virObjectUnref(netst);\n";
print " st->driver = NULL;\n";
print " st->privateData = NULL;\n";
}
diff --git a/src/rpc/virnetclient.c b/src/rpc/virnetclient.c
index 4da5082..9be0592 100644
--- a/src/rpc/virnetclient.c
+++ b/src/rpc/virnetclient.c
@@ -66,7 +66,7 @@ struct _virNetClientCall {
struct _virNetClient {
- int refs;
+ virObject object;
virMutex lock;
@@ -107,6 +107,21 @@ struct _virNetClient {
};
+static virClassPtr virNetClientClass;
+static void virNetClientDispose(void *obj);
+
+static int virNetClientOnceInit(void)
+{
+ if (!(virNetClientClass = virClassNew("virNetClient",
+ sizeof(virNetClient),
+ virNetClientDispose)))
+ return -1;
+
+ return 0;
+}
+
+VIR_ONCE_GLOBAL_INIT(virNetClient)
+
static void virNetClientIOEventLoopPassTheBuck(virNetClientPtr client,
virNetClientCallPtr thiscall);
static int virNetClientQueueNonBlocking(virNetClientPtr client,
@@ -220,13 +235,6 @@ static bool virNetClientCallMatchPredicate(virNetClientCallPtr head,
}
-static void virNetClientEventFree(void *opaque)
-{
- virNetClientPtr client = opaque;
-
- virNetClientFree(client);
-}
-
bool
virNetClientKeepAliveIsSupported(virNetClientPtr client)
{
@@ -286,19 +294,22 @@ static virNetClientPtr virNetClientNew(virNetSocketPtr sock,
int wakeupFD[2] = { -1, -1 };
virKeepAlivePtr ka = NULL;
+ if (virNetClientInitialize() < 0)
+ return NULL;
+
if (pipe2(wakeupFD, O_CLOEXEC) < 0) {
virReportSystemError(errno, "%s",
_("unable to make pipe"));
goto error;
}
- if (VIR_ALLOC(client) < 0)
- goto no_memory;
-
- client->refs = 1;
+ if (!(client = virObjectNew(virNetClientClass)))
+ goto error;
- if (virMutexInit(&client->lock) < 0)
+ if (virMutexInit(&client->lock) < 0) {
+ VIR_FREE(client);
goto error;
+ }
client->sock = sock;
client->wakeupReadFD = wakeupFD[0];
@@ -310,13 +321,13 @@ static virNetClientPtr virNetClientNew(virNetSocketPtr sock,
goto no_memory;
/* Set up a callback to listen on the socket data */
- client->refs++;
+ virObjectRef(client);
if (virNetSocketAddIOCallback(client->sock,
VIR_EVENT_HANDLE_READABLE,
virNetClientIncomingEvent,
client,
- virNetClientEventFree) < 0) {
- client->refs--;
+ (virFreeCallback)virObjectUnref) < 0) {
+ virObjectUnref(client);
VIR_DEBUG("Failed to add event watch, disabling events and support for"
" keepalive messages");
} else {
@@ -325,16 +336,16 @@ static virNetClientPtr virNetClientNew(virNetSocketPtr sock,
if (!(ka = virKeepAliveNew(-1, 0, client,
virNetClientKeepAliveSendCB,
virNetClientKeepAliveDeadCB,
- virNetClientEventFree)))
+ (virFreeCallback)virObjectUnref)))
goto error;
/* keepalive object has a reference to client */
- client->refs++;
+ virObjectRef(client);
}
client->keepalive = ka;
PROBE(RPC_CLIENT_NEW,
- "client=%p refs=%d sock=%p",
- client, client->refs, client->sock);
+ "client=%p sock=%p",
+ client, client->sock);
return client;
no_memory:
@@ -346,7 +357,7 @@ error:
virKeepAliveStop(ka);
virObjectUnref(ka);
}
- virNetClientFree(client);
+ virObjectUnref(client);
return NULL;
}
@@ -405,17 +416,6 @@ virNetClientPtr virNetClientNewExternal(const char **cmdargv)
}
-void virNetClientRef(virNetClientPtr client)
-{
- virNetClientLock(client);
- client->refs++;
- PROBE(RPC_CLIENT_REF,
- "client=%p refs=%d",
- client, client->refs);
- virNetClientUnlock(client);
-}
-
-
int virNetClientGetFD(virNetClientPtr client)
{
int fd;
@@ -446,25 +446,13 @@ bool virNetClientHasPassFD(virNetClientPtr client)
}
-void virNetClientFree(virNetClientPtr client)
+void virNetClientDispose(void *obj)
{
+ virNetClientPtr client = obj;
int i;
- if (!client)
- return;
-
- virNetClientLock(client);
- PROBE(RPC_CLIENT_FREE,
- "client=%p refs=%d",
- client, client->refs);
- client->refs--;
- if (client->refs > 0) {
- virNetClientUnlock(client);
- return;
- }
-
for (i = 0 ; i < client->nprograms ; i++)
- virNetClientProgramFree(client->programs[i]);
+ virObjectUnref(client->programs[i]);
VIR_FREE(client->programs);
VIR_FORCE_CLOSE(client->wakeupSendFD);
@@ -481,8 +469,6 @@ void virNetClientFree(virNetClientPtr client)
#endif
virNetClientUnlock(client);
virMutexDestroy(&client->lock);
-
- VIR_FREE(client);
}
@@ -510,14 +496,14 @@ virNetClientCloseLocked(virNetClientPtr client)
client->wantClose = false;
if (ka) {
- client->refs++;
+ virObjectRef(client);
virNetClientUnlock(client);
virKeepAliveStop(ka);
virObjectUnref(ka);
virNetClientLock(client);
- client->refs--;
+ virObjectUnref(client);
}
}
@@ -703,8 +689,7 @@ int virNetClientAddProgram(virNetClientPtr client,
if (VIR_EXPAND_N(client->programs, client->nprograms, 1) < 0)
goto no_memory;
- client->programs[client->nprograms-1] = prog;
- virNetClientProgramRef(prog);
+ client->programs[client->nprograms-1] = virObjectRef(prog);
virNetClientUnlock(client);
return 0;
@@ -724,8 +709,7 @@ int virNetClientAddStream(virNetClientPtr client,
if (VIR_EXPAND_N(client->streams, client->nstreams, 1) < 0)
goto no_memory;
- client->streams[client->nstreams-1] = st;
- virNetClientStreamRef(st);
+ client->streams[client->nstreams-1] = virObjectRef(st);
virNetClientUnlock(client);
return 0;
@@ -759,7 +743,7 @@ void virNetClientRemoveStream(virNetClientPtr client,
VIR_FREE(client->streams);
client->nstreams = 0;
}
- virNetClientStreamFree(st);
+ virObjectUnref(st);
cleanup:
virNetClientUnlock(client);
diff --git a/src/rpc/virnetclient.h b/src/rpc/virnetclient.h
index 13b4f96..6e41e75 100644
--- a/src/rpc/virnetclient.h
+++ b/src/rpc/virnetclient.h
@@ -30,6 +30,7 @@
# endif
# include "virnetclientprogram.h"
# include "virnetclientstream.h"
+# include "virobject.h"
virNetClientPtr virNetClientNewUNIX(const char *path,
@@ -51,8 +52,6 @@ virNetClientPtr virNetClientNewSSH(const char *nodename,
virNetClientPtr virNetClientNewExternal(const char **cmdargv);
-void virNetClientRef(virNetClientPtr client);
-
int virNetClientGetFD(virNetClientPtr client);
int virNetClientDupFD(virNetClientPtr client, bool cloexec);
@@ -96,7 +95,6 @@ const char *virNetClientRemoteAddrString(virNetClientPtr client);
int virNetClientGetTLSKeySize(virNetClientPtr client);
-void virNetClientFree(virNetClientPtr client);
void virNetClientClose(virNetClientPtr client);
bool virNetClientKeepAliveIsSupported(virNetClientPtr client);
diff --git a/src/rpc/virnetclientprogram.c b/src/rpc/virnetclientprogram.c
index e1e8846..f6d2173 100644
--- a/src/rpc/virnetclientprogram.c
+++ b/src/rpc/virnetclientprogram.c
@@ -33,6 +33,7 @@
#include "logging.h"
#include "util.h"
#include "virfile.h"
+#include "threads.h"
#define VIR_FROM_THIS VIR_FROM_RPC
#define virNetError(code, ...) \
@@ -40,7 +41,7 @@
__FUNCTION__, __LINE__, __VA_ARGS__)
struct _virNetClientProgram {
- int refs;
+ virObject object;
unsigned program;
unsigned version;
@@ -49,6 +50,22 @@ struct _virNetClientProgram {
void *eventOpaque;
};
+static virClassPtr virNetClientProgramClass;
+static void virNetClientProgramDispose(void *obj);
+
+static int virNetClientProgramOnceInit(void)
+{
+ if (!(virNetClientProgramClass = virClassNew("virNetClientProgram",
+ sizeof(virNetClientProgram),
+ virNetClientProgramDispose)))
+ return -1;
+
+ return 0;
+}
+
+VIR_ONCE_GLOBAL_INIT(virNetClientProgram)
+
+
virNetClientProgramPtr virNetClientProgramNew(unsigned program,
unsigned version,
virNetClientProgramEventPtr events,
@@ -57,12 +74,12 @@ virNetClientProgramPtr virNetClientProgramNew(unsigned program,
{
virNetClientProgramPtr prog;
- if (VIR_ALLOC(prog) < 0) {
- virReportOOMError();
+ if (virNetClientProgramInitialize() < 0)
+ return NULL;
+
+ if (!(prog = virObjectNew(virNetClientProgramClass)))
return NULL;
- }
- prog->refs = 1;
prog->program = program;
prog->version = version;
prog->events = events;
@@ -73,22 +90,8 @@ virNetClientProgramPtr virNetClientProgramNew(unsigned program,
}
-void virNetClientProgramRef(virNetClientProgramPtr prog)
+void virNetClientProgramDispose(void *obj ATTRIBUTE_UNUSED)
{
- prog->refs++;
-}
-
-
-void virNetClientProgramFree(virNetClientProgramPtr prog)
-{
- if (!prog)
- return;
-
- prog->refs--;
- if (prog->refs > 0)
- return;
-
- VIR_FREE(prog);
}
diff --git a/src/rpc/virnetclientprogram.h b/src/rpc/virnetclientprogram.h
index 14a4c96..3fde3bf 100644
--- a/src/rpc/virnetclientprogram.h
+++ b/src/rpc/virnetclientprogram.h
@@ -27,6 +27,7 @@
# include <rpc/xdr.h>
# include "virnetmessage.h"
+# include "virobject.h"
typedef struct _virNetClient virNetClient;
typedef virNetClient *virNetClientPtr;
@@ -62,10 +63,6 @@ virNetClientProgramPtr virNetClientProgramNew(unsigned program,
unsigned virNetClientProgramGetProgram(virNetClientProgramPtr prog);
unsigned virNetClientProgramGetVersion(virNetClientProgramPtr prog);
-void virNetClientProgramRef(virNetClientProgramPtr prog);
-
-void virNetClientProgramFree(virNetClientProgramPtr prog);
-
int virNetClientProgramMatches(virNetClientProgramPtr prog,
virNetMessagePtr msg);
diff --git a/src/rpc/virnetclientstream.c b/src/rpc/virnetclientstream.c
index de61a62..acdb67c 100644
--- a/src/rpc/virnetclientstream.c
+++ b/src/rpc/virnetclientstream.c
@@ -36,12 +36,13 @@
__FUNCTION__, __LINE__, __VA_ARGS__)
struct _virNetClientStream {
+ virObject object;
+
virMutex lock;
virNetClientProgramPtr prog;
int proc;
unsigned serial;
- int refs;
virError err;
@@ -66,6 +67,22 @@ struct _virNetClientStream {
};
+static virClassPtr virNetClientStreamClass;
+static void virNetClientStreamDispose(void *obj);
+
+static int virNetClientStreamOnceInit(void)
+{
+ if (!(virNetClientStreamClass = virClassNew("virNetClientStream",
+ sizeof(virNetClientStream),
+ virNetClientStreamDispose)))
+ return -1;
+
+ return 0;
+}
+
+VIR_ONCE_GLOBAL_INIT(virNetClientStream)
+
+
static void
virNetClientStreamEventTimerUpdate(virNetClientStreamPtr st)
{
@@ -122,26 +139,18 @@ virNetClientStreamEventTimer(int timer ATTRIBUTE_UNUSED, void *opaque)
}
-static void
-virNetClientStreamEventTimerFree(void *opaque)
-{
- virNetClientStreamPtr st = opaque;
- virNetClientStreamFree(st);
-}
-
-
virNetClientStreamPtr virNetClientStreamNew(virNetClientProgramPtr prog,
int proc,
unsigned serial)
{
virNetClientStreamPtr st;
- if (VIR_ALLOC(st) < 0) {
- virReportOOMError();
+ if (virNetClientStreamInitialize() < 0)
+ return NULL;
+
+ if (!(st = virObjectNew(virNetClientStreamClass)))
return NULL;
- }
- st->refs = 1;
st->prog = prog;
st->proc = proc;
st->serial = serial;
@@ -153,35 +162,19 @@ virNetClientStreamPtr virNetClientStreamNew(virNetClientProgramPtr prog,
return NULL;
}
- virNetClientProgramRef(prog);
+ virObjectRef(prog);
return st;
}
-
-void virNetClientStreamRef(virNetClientStreamPtr st)
+void virNetClientStreamDispose(void *obj)
{
- virMutexLock(&st->lock);
- st->refs++;
- virMutexUnlock(&st->lock);
-}
-
-void virNetClientStreamFree(virNetClientStreamPtr st)
-{
- virMutexLock(&st->lock);
- st->refs--;
- if (st->refs > 0) {
- virMutexUnlock(&st->lock);
- return;
- }
-
- virMutexUnlock(&st->lock);
+ virNetClientStreamPtr st = obj;
virResetError(&st->err);
VIR_FREE(st->incoming);
virMutexDestroy(&st->lock);
- virNetClientProgramFree(st->prog);
- VIR_FREE(st);
+ virObjectUnref(st->prog);
}
bool virNetClientStreamMatches(virNetClientStreamPtr st,
@@ -457,13 +450,13 @@ int virNetClientStreamEventAddCallback(virNetClientStreamPtr st,
goto cleanup;
}
- st->refs++;
+ virObjectRef(st);
if ((st->cbTimer =
virEventAddTimeout(-1,
virNetClientStreamEventTimer,
st,
- virNetClientStreamEventTimerFree)) < 0) {
- st->refs--;
+ (virFreeCallback)virObjectUnref)) < 0) {
+ virObjectUnref(st);
goto cleanup;
}
diff --git a/src/rpc/virnetclientstream.h b/src/rpc/virnetclientstream.h
index fd7a2ee..9e22adb 100644
--- a/src/rpc/virnetclientstream.h
+++ b/src/rpc/virnetclientstream.h
@@ -24,6 +24,7 @@
# define __VIR_NET_CLIENT_STREAM_H__
# include "virnetclientprogram.h"
+# include "virobject.h"
typedef struct _virNetClientStream virNetClientStream;
typedef virNetClientStream *virNetClientStreamPtr;
@@ -35,10 +36,6 @@ virNetClientStreamPtr virNetClientStreamNew(virNetClientProgramPtr prog,
int proc,
unsigned serial);
-void virNetClientStreamRef(virNetClientStreamPtr st);
-
-void virNetClientStreamFree(virNetClientStreamPtr st);
-
bool virNetClientStreamRaiseError(virNetClientStreamPtr st);
int virNetClientStreamSetError(virNetClientStreamPtr st,
--
1.7.10.2
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