/**
* virDomainEventStateNew:
*/
virDomainEventStatePtr
virDomainEventStateNew(void)
{
virDomainEventStatePtr state = NULL;
if (VIR_ALLOC(state) < 0) {
virReportOOMError();
goto error;
}
if (virMutexInit(&state->lock) < 0) {
virReportSystemError(errno, "%s",
_("unable to initialize state mutex"));
VIR_FREE(state);
goto error;
}
if (VIR_ALLOC(state->callbacks) < 0) {
virReportOOMError();
goto error;
}
if (!(state->queue = virDomainEventQueueNew()))
goto error;
state->timer = -1;
return state;
error:
virDomainEventStateFree(state);
return NULL;
}
/**
* virDomainEventStateNew:
* @timeout_cb: virEventTimeoutCallback to call when timer expires
* @timeout_opaque: Data for timeout_cb
* @timeout_free: Optional virFreeCallback for freeing timeout_opaque
* @requireTimer: If true, return an error if registering the timer fails.
* This is fatal for drivers that sit behind the daemon
* (qemu, lxc), since there should always be a event impl
* registered.
*/
virDomainEventStatePtr
virDomainEventStateNew(virEventTimeoutCallback timeout_cb,
void *timeout_opaque,
virFreeCallback timeout_free,
bool requireTimer)
{
virDomainEventStatePtr state = NULL;
if (VIR_ALLOC(state) < 0) {
virReportOOMError();
goto error;
}
if (VIR_ALLOC(state->callbacks) < 0) {
virReportOOMError();
goto error;
}
if (!(state->queue = virDomainEventQueueNew())) {
goto error;
}
if ((state->timer = virEventAddTimeout(-1,
timeout_cb,
timeout_opaque,
timeout_free)) < 0) {
if (requireTimer == false) {
VIR_DEBUG("virEventAddTimeout failed: No addTimeoutImpl defined. "
"continuing without events.");
} else {
eventReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("could not initialize domain event timer"));
goto error;
}
}
return state;
error:
virDomainEventStateFree(state);
return NULL;
}