/*
* virshReconnect:
*
* Reconnect after a disconnect from libvirtd
*
*/
static int
virshReconnect(vshControl *ctl, const char *name, bool readonly, bool force)
{
bool connected = false;
virshControlPtr priv = ctl->privData;
/* If the flag was not specified, then it depends on whether we are
* reconnecting to the current URI (in which case we want to keep the
* readonly flag as it was) or to a specified URI in which case it
* should stay false */
if (!readonly && !name)
readonly = priv->readonly;
if (priv->conn) {
int ret;
connected = true;
virConnectUnregisterCloseCallback(priv->conn, virshCatchDisconnect);
ret = virConnectClose(priv->conn);
if (ret < 0)
vshError(ctl, "%s", _("Failed to disconnect from the hypervisor"));
else if (ret > 0)
vshError(ctl, "%s", _("One or more references were leaked after "
"disconnect from the hypervisor"));
}
priv->conn = virshConnect(ctl, name ? name : ctl->connname, readonly);
if (!priv->conn) {
if (disconnected)
vshError(ctl, "%s", _("Failed to reconnect to the hypervisor"));
else
vshError(ctl, "%s", _("failed to connect to the hypervisor"));
return -1;
} else {
if (name) {
VIR_FREE(ctl->connname);
ctl->connname = vshStrdup(ctl, name);
}
priv->readonly = readonly;
if (virConnectRegisterCloseCallback(priv->conn, virshCatchDisconnect,
ctl, NULL) < 0)
vshError(ctl, "%s", _("Unable to register disconnect callback"));
if (connected && !force)
vshError(ctl, "%s", _("Reconnected to the hypervisor"));
}
disconnected = 0;
priv->useGetInfo = false;
priv->useSnapshotOld = false;
priv->blockJobNoBytes = false;
return 0;
}
static bool
cmdConnect(vshControl *ctl, const vshCmd *cmd)
{
bool ro = vshCommandOptBool(cmd, "readonly");
const char *name = NULL;
virshControlPtr priv = ctl->privData;
if (priv->conn) {
int ret;
virConnectUnregisterCloseCallback(priv->conn, virshCatchDisconnect);
ret = virConnectClose(priv->conn);
if (ret < 0)
vshError(ctl, "%s", _("Failed to disconnect from the hypervisor"));
else if (ret > 0)
vshError(ctl, "%s", _("One or more references were leaked after "
"disconnect from the hypervisor"));
priv->conn = NULL;
}
VIR_FREE(ctl->connname);
if (vshCommandOptStringReq(ctl, cmd, "name", &name) < 0)
return false;
ctl->connname = vshStrdup(ctl, name);
priv->useGetInfo = false;
priv->useSnapshotOld = false;
priv->blockJobNoBytes = false;
priv->readonly = ro;
priv->conn = virshConnect(ctl, ctl->connname, priv->readonly);
if (!priv->conn) {
vshError(ctl, "%s", _("Failed to connect to the hypervisor"));
return false;
}
if (virConnectRegisterCloseCallback(priv->conn, virshCatchDisconnect,
NULL, NULL) < 0)
vshError(ctl, "%s", _("Unable to register disconnect callback"));
return true;
}
/*
* Deinitialize virsh
*/
static bool
virshDeinit(vshControl *ctl)
{
virshControlPtr priv = ctl->privData;
vshDeinit(ctl);
VIR_FREE(ctl->connname);
if (priv->conn) {
int ret;
virConnectUnregisterCloseCallback(priv->conn, virshCatchDisconnect);
ret = virConnectClose(priv->conn);
if (ret < 0)
vshError(ctl, "%s", _("Failed to disconnect from the hypervisor"));
else if (ret > 0)
vshError(ctl, "%s", _("One or more references were leaked after "
"disconnect from the hypervisor"));
}
virResetLastError();
if (ctl->eventLoopStarted) {
int timer;
virMutexLock(&ctl->lock);
ctl->quit = true;
/* HACK: Add a dummy timeout to break event loop */
timer = virEventAddTimeout(0, virshDeinitTimer, NULL, NULL);
virMutexUnlock(&ctl->lock);
virThreadJoin(&ctl->eventLoop);
if (timer != -1)
virEventRemoveTimeout(timer);
if (ctl->eventTimerId != -1)
virEventRemoveTimeout(ctl->eventTimerId);
ctl->eventLoopStarted = false;
}
virMutexDestroy(&ctl->lock);
return true;
}
/*
* virshReconnect:
*
* Reconnect after a disconnect from libvirtd
*
*/
static void
virshReconnect(vshControl *ctl)
{
bool connected = false;
virshControlPtr priv = ctl->privData;
if (priv->conn) {
int ret;
connected = true;
virConnectUnregisterCloseCallback(priv->conn, virshCatchDisconnect);
ret = virConnectClose(priv->conn);
if (ret < 0)
vshError(ctl, "%s", _("Failed to disconnect from the hypervisor"));
else if (ret > 0)
vshError(ctl, "%s", _("One or more references were leaked after "
"disconnect from the hypervisor"));
}
priv->conn = virshConnect(ctl, ctl->connname, priv->readonly);
if (!priv->conn) {
if (disconnected)
vshError(ctl, "%s", _("Failed to reconnect to the hypervisor"));
else
vshError(ctl, "%s", _("failed to connect to the hypervisor"));
} else {
if (virConnectRegisterCloseCallback(priv->conn, virshCatchDisconnect,
NULL, NULL) < 0)
vshError(ctl, "%s", _("Unable to register disconnect callback"));
if (connected)
vshError(ctl, "%s", _("Reconnected to the hypervisor"));
}
disconnected = 0;
priv->useGetInfo = false;
priv->useSnapshotOld = false;
priv->blockJobNoBytes = false;
}
void ConnAliveThread::unregisterConnEvents()
{
//qDebug()<<"unregisterConnEvents0"<<*ptr_ConnPtr<<URI;
if ( closeCallbackRegistered ) {
int ret = virConnectUnregisterCloseCallback(
*ptr_ConnPtr, connEventCallBack);
if (ret<0) sendConnErrors();
else closeCallbackRegistered = false;
};
if ( domainsLifeCycleCallback ) {
int ret = virConnectDomainEventDeregisterAny(
*ptr_ConnPtr, domainsLifeCycleCallback);
if (ret<0) sendConnErrors();
domainsLifeCycleCallback = -1;
};
if ( networkLifeCycleCallback ) {
int ret = virConnectNetworkEventDeregisterAny(
*ptr_ConnPtr, networkLifeCycleCallback);
if (ret<0) sendConnErrors();
networkLifeCycleCallback = -1;
};
//qDebug()<<"unregisterConnEvents1"<<*ptr_ConnPtr<<URI;
}