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virnetdaemon: Use automatic mutex management

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Signed-off-by: Tim Wiederhake <twiederh@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
This commit is contained in:
Tim Wiederhake 2022-03-22 17:28:38 +01:00
parent 4e4def21d3
commit bc2d929e95
1 changed files with 45 additions and 99 deletions
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144
src/rpc/virnetdaemon.c
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@ -171,20 +171,14 @@ int
virNetDaemonAddServer(virNetDaemon *dmn,
virNetServer *srv)
{
int ret = -1;
const char *serverName = virNetServerGetName(srv);
virObjectLock(dmn);
VIR_LOCK_GUARD lock = virObjectLockGuard(dmn);
if (virHashAddEntry(dmn->servers, serverName, srv) < 0)
goto cleanup;
return -1;
virObjectRef(srv);
ret = 0;
cleanup:
virObjectUnlock(dmn);
return ret;
return 0;
}
@ -192,11 +186,8 @@ virNetServer *
virNetDaemonGetServer(virNetDaemon *dmn,
const char *serverName)
{
virNetServer *srv = NULL;
virObjectLock(dmn);
srv = virObjectRef(virHashLookup(dmn->servers, serverName));
virObjectUnlock(dmn);
VIR_LOCK_GUARD lock = virObjectLockGuard(dmn);
virNetServer *srv = virObjectRef(virHashLookup(dmn->servers, serverName));
if (!srv) {
virReportError(VIR_ERR_NO_SERVER,
@ -210,13 +201,9 @@ bool
virNetDaemonHasServer(virNetDaemon *dmn,
const char *serverName)
{
void *ent;
VIR_LOCK_GUARD lock = virObjectLockGuard(dmn);
virObjectLock(dmn);
ent = virHashLookup(dmn->servers, serverName);
virObjectUnlock(dmn);
return ent != NULL;
return virHashLookup(dmn->servers, serverName) != NULL;
}
@ -252,26 +239,19 @@ ssize_t
virNetDaemonGetServers(virNetDaemon *dmn,
virNetServer ***servers)
{
VIR_LOCK_GUARD lock = virObjectLockGuard(dmn);
struct collectData data = { servers, 0 };
ssize_t ret = -1;
*servers = NULL;
virObjectLock(dmn);
if (virHashForEach(dmn->servers, collectServers, &data) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Cannot get all servers from daemon"));
goto cleanup;
virObjectListFreeCount(*servers, data.nservers);
return -1;
}
ret = data.nservers;
cleanup:
if (ret < 0)
virObjectListFreeCount(*servers, data.nservers);
virObjectUnlock(dmn);
return ret;
return data.nservers;
}
@ -387,48 +367,39 @@ virNetDaemonPreExecRestart(virNetDaemon *dmn)
g_autoptr(virJSONValue) object = virJSONValueNewObject();
g_autoptr(virJSONValue) srvObj = virJSONValueNewObject();
g_autofree virHashKeyValuePair *srvArray = NULL;
virObjectLock(dmn);
VIR_LOCK_GUARD lock = virObjectLockGuard(dmn);
if (!(srvArray = virHashGetItems(dmn->servers, NULL, true)))
goto error;
return NULL;
for (i = 0; srvArray[i].key; i++) {
virNetServer *server = virHashLookup(dmn->servers, srvArray[i].key);
g_autoptr(virJSONValue) srvJSON = NULL;
if (!server)
goto error;
return NULL;
srvJSON = virNetServerPreExecRestart(server);
if (!srvJSON)
goto error;
return NULL;
if (virJSONValueObjectAppend(srvObj, srvArray[i].key, &srvJSON) < 0)
goto error;
return NULL;
}
virObjectUnlock(dmn);
if (virJSONValueObjectAppend(object, "servers", &srvObj) < 0)
return NULL;
return g_steal_pointer(&object);
error:
virObjectUnlock(dmn);
return NULL;
}
bool
virNetDaemonIsPrivileged(virNetDaemon *dmn)
{
bool priv;
virObjectLock(dmn);
priv = dmn->privileged;
virObjectUnlock(dmn);
return priv;
VIR_LOCK_GUARD lock = virObjectLockGuard(dmn);
return dmn->privileged;
}
@ -436,11 +407,9 @@ void
virNetDaemonAutoShutdown(virNetDaemon *dmn,
unsigned int timeout)
{
virObjectLock(dmn);
VIR_LOCK_GUARD lock = virObjectLockGuard(dmn);
dmn->autoShutdownTimeout = timeout;
virObjectUnlock(dmn);
}
@ -507,7 +476,8 @@ virNetDaemonCallInhibit(virNetDaemon *dmn,
void
virNetDaemonAddShutdownInhibition(virNetDaemon *dmn)
{
virObjectLock(dmn);
VIR_LOCK_GUARD lock = virObjectLockGuard(dmn);
dmn->autoShutdownInhibitions++;
VIR_DEBUG("dmn=%p inhibitions=%zu", dmn, dmn->autoShutdownInhibitions);
@ -520,15 +490,14 @@ virNetDaemonAddShutdownInhibition(virNetDaemon *dmn)
_("Virtual machines need to be saved"),
"delay");
#endif
virObjectUnlock(dmn);
}
void
virNetDaemonRemoveShutdownInhibition(virNetDaemon *dmn)
{
virObjectLock(dmn);
VIR_LOCK_GUARD lock = virObjectLockGuard(dmn);
dmn->autoShutdownInhibitions--;
VIR_DEBUG("dmn=%p inhibitions=%zu", dmn, dmn->autoShutdownInhibitions);
@ -537,8 +506,6 @@ virNetDaemonRemoveShutdownInhibition(virNetDaemon *dmn)
VIR_DEBUG("Closing inhibit FD %d", dmn->autoShutdownInhibitFd);
VIR_FORCE_CLOSE(dmn->autoShutdownInhibitFd);
}
virObjectUnlock(dmn);
}
@ -648,13 +615,12 @@ virNetDaemonAddSignalHandler(virNetDaemon *dmn,
virNetDaemonSignalFunc func,
void *opaque)
{
virNetDaemonSignal *sigdata = NULL;
g_autofree virNetDaemonSignal *sigdata = NULL;
struct sigaction sig_action;
virObjectLock(dmn);
VIR_LOCK_GUARD lock = virObjectLockGuard(dmn);
if (virNetDaemonSignalSetup(dmn) < 0)
goto error;
return -1;
VIR_EXPAND_N(dmn->signals, dmn->nsignals, 1);
@ -671,15 +637,8 @@ virNetDaemonAddSignalHandler(virNetDaemon *dmn,
sigaction(signum, &sig_action, &sigdata->oldaction);
dmn->signals[dmn->nsignals-1] = sigdata;
virObjectUnlock(dmn);
dmn->signals[dmn->nsignals-1] = g_steal_pointer(&sigdata);
return 0;
error:
VIR_FREE(sigdata);
virObjectUnlock(dmn);
return -1;
}
#else /* WIN32 */
@ -703,15 +662,12 @@ virNetDaemonAutoShutdownTimer(int timerid G_GNUC_UNUSED,
void *opaque)
{
virNetDaemon *dmn = opaque;
virObjectLock(dmn);
VIR_LOCK_GUARD lock = virObjectLockGuard(dmn);
if (!dmn->autoShutdownInhibitions) {
VIR_DEBUG("Automatic shutdown triggered");
dmn->quit = true;
}
virObjectUnlock(dmn);
}
static int
@ -730,9 +686,9 @@ void
virNetDaemonUpdateServices(virNetDaemon *dmn,
bool enabled)
{
virObjectLock(dmn);
VIR_LOCK_GUARD lock = virObjectLockGuard(dmn);
virHashForEach(dmn->servers, daemonServerUpdateServices, &enabled);
virObjectUnlock(dmn);
}
static int
@ -764,19 +720,17 @@ daemonShutdownWait(void *opaque)
bool graceful = false;
virHashForEach(dmn->servers, daemonServerShutdownWait, NULL);
if (dmn->shutdownWaitCb && dmn->shutdownWaitCb() < 0)
goto finish;
if (!dmn->shutdownWaitCb || dmn->shutdownWaitCb() >= 0) {
if (dmn->stateStopThread)
virThreadJoin(dmn->stateStopThread);
if (dmn->stateStopThread)
virThreadJoin(dmn->stateStopThread);
graceful = true;
}
graceful = true;
finish:
virObjectLock(dmn);
dmn->graceful = graceful;
virEventUpdateTimeout(dmn->finishTimer, 0);
virObjectUnlock(dmn);
VIR_WITH_OBJECT_LOCK_GUARD(dmn) {
dmn->graceful = graceful;
virEventUpdateTimeout(dmn->finishTimer, 0);
}
}
static void
@ -784,10 +738,9 @@ virNetDaemonFinishTimer(int timerid G_GNUC_UNUSED,
void *opaque)
{
virNetDaemon *dmn = opaque;
VIR_LOCK_GUARD lock = virObjectLockGuard(dmn);
virObjectLock(dmn);
dmn->finished = true;
virObjectUnlock(dmn);
}
void
@ -896,36 +849,31 @@ void
virNetDaemonSetStateStopWorkerThread(virNetDaemon *dmn,
virThread **thr)
{
virObjectLock(dmn);
VIR_LOCK_GUARD lock = virObjectLockGuard(dmn);
VIR_DEBUG("Setting state stop worker thread on dmn=%p to thr=%p", dmn, thr);
dmn->stateStopThread = g_steal_pointer(thr);
virObjectUnlock(dmn);
}
void
virNetDaemonQuit(virNetDaemon *dmn)
{
virObjectLock(dmn);
VIR_LOCK_GUARD lock = virObjectLockGuard(dmn);
VIR_DEBUG("Quit requested %p", dmn);
dmn->quit = true;
virObjectUnlock(dmn);
}
void
virNetDaemonQuitExecRestart(virNetDaemon *dmn)
{
virObjectLock(dmn);
VIR_LOCK_GUARD lock = virObjectLockGuard(dmn);
VIR_DEBUG("Exec-restart requested %p", dmn);
dmn->quit = true;
dmn->execRestart = true;
virObjectUnlock(dmn);
}
@ -969,10 +917,8 @@ virNetDaemonSetShutdownCallbacks(virNetDaemon *dmn,
virNetDaemonShutdownCallback prepareCb,
virNetDaemonShutdownCallback waitCb)
{
virObjectLock(dmn);
VIR_LOCK_GUARD lock = virObjectLockGuard(dmn);
dmn->shutdownPrepareCb = prepareCb;
dmn->shutdownWaitCb = waitCb;
virObjectUnlock(dmn);
}