mama_status avisTransportBridge_stop(avisTransportBridge* transportBridge)
{
CHECK_TRANSPORT(transportBridge);
if (0 == wInterlocked_read (&transportBridge->mDispatching))
{
mama_log (MAMA_LOG_LEVEL_WARN, "avisTransportBridge_stop(): "
"Avis already stopped");
log_avis_error (MAMA_LOG_LEVEL_WARN, transportBridge->mAvis);
return MAMA_STATUS_OK;
}
wInterlocked_set (0, &transportBridge->mDispatching);
/* Dispatch a dummy notification to get the event polling to iterate
* another loop and examine the mDispatching state */
elvin_invoke (transportBridge->mAvis, &closeNotification, transportBridge);
while (-1 == wsem_wait(&transportBridge->mAvisDispatchSem))
{
if (errno != EINTR) return MAMA_STATUS_SYSTEM_ERROR;
}
wthread_join (transportBridge->mThreadId, NULL);
return MAMA_STATUS_OK;
}
mama_status avisTransportBridge_start(avisTransportBridge* transportBridge)
{
/* stop Avis event loop */
int rc;
CHECK_TRANSPORT(transportBridge);
if (1 == wInterlocked_read (&transportBridge->mDispatching))
{
mama_log (MAMA_LOG_LEVEL_WARN, "avisTransportBridge_start(): "
"Avis already dispatching");
log_avis_error (MAMA_LOG_LEVEL_WARN, transportBridge->mAvis);
return MAMA_STATUS_OK;
}
wInterlocked_set (1, &transportBridge->mDispatching);
rc = wthread_create (&transportBridge->mThreadId, NULL,
avisDispatchThread, transportBridge);
if (0 != rc)
{
mama_log (MAMA_LOG_LEVEL_ERROR, "wthread_create returned %d", rc);
return MAMA_STATUS_SYSTEM_ERROR;
}
return MAMA_STATUS_OK;
}
int
avisTransportBridge_isDispatching (
avisTransportBridge* transportBridge)
{
CHECK_TRANSPORT(transportBridge);
return wInterlocked_read (&transportBridge->mDispatching);
}
static void
*dispatchThreadProc( void *closure )
{
mamaDispatcherImpl* impl = (mamaDispatcherImpl*)closure;
wInterlocked_set (1, &impl->mIsDispatching);
while (wInterlocked_read (&impl->mIsDispatching) &&
MAMA_STATUS_OK == mamaQueue_dispatch (impl->mQueue));
wInterlocked_set (0, &impl->mIsDispatching);
return NULL;
}
mama_status
avisBridgeMamaTransport_destroy (transportBridge transport)
{
mama_status status;
avisTransportBridge* transportBridge = (avisTransportBridge*) transport;
avisBridgeImpl* avisBridge = NULL;
mamaBridgeImpl* bridgeImpl = NULL;
bridgeImpl = mamaTransportImpl_getBridgeImpl(
avisTransport(transport)->mTransport);
if (!bridgeImpl)
{
mama_log (MAMA_LOG_LEVEL_ERROR,
"avisBridgeMamaTransport_destroy(): Could not get bridge");
free(transport);
return MAMA_STATUS_PLATFORM;
}
status = mamaBridgeImpl_getClosure((mamaBridge) bridgeImpl,
(void**) &avisBridge);
if (MAMA_STATUS_OK != status)
{
mama_log (MAMA_LOG_LEVEL_ERROR,
"avisBridgeMamaTransport_destroy(): Could not get Avis bridge object");
free(transport);
return status;
}
if (1 == wInterlocked_read (&transportBridge->mDispatching))
{
avisTransportBridge_stop (transportBridge);
}
elvin_remove_close_listener (transportBridge->mAvis, closeListener);
if (!elvin_close (transportBridge->mAvis))
{
/* there appears to be a race condition in Avis libs where router socket
* can sometimes be closed before we receive the disconnect reply -- log
* it, and continue */
log_avis_error(MAMA_LOG_LEVEL_FINE, transportBridge->mAvis);
}
wInterlocked_destroy (&transportBridge->mDispatching);
wsem_destroy(&avisTransport(transport)->mAvisDispatchSem);
free(avisTransport(transport)->mAvis);
free(avisTransport(transport));
return MAMA_STATUS_OK;
}
void* avisDispatchThread(void* closure)
{
avisTransportBridge* transportBridge = (avisTransportBridge*) closure;
while (1 == wInterlocked_read (&transportBridge->mDispatching))
{
elvin_poll (transportBridge->mAvis);
if (ELVIN_ERROR_TIMEOUT == transportBridge->mAvis->error.code)
{
/* Timeout is acceptable and expected */
elvin_error_reset (&transportBridge->mAvis->error);
}
}
wsem_post (&transportBridge->mAvisDispatchSem);
return NULL;
}
mama_status
mamaQueue_canDestroy(mamaQueue queue)
{
/* Returns. */
mama_status ret = MAMA_STATUS_NULL_ARG;
if(queue != NULL)
{
/* Cast the queue to an impl. */
mamaQueueImpl *impl = (mamaQueueImpl *)queue;
/* If the number of objects is 0 then the queue can be destroyed. */
ret = MAMA_STATUS_QUEUE_OPEN_OBJECTS;
if(0 == wInterlocked_read(&impl->mNumberOpenObjects))
{
ret = MAMA_STATUS_OK;
}
}
return ret;
}
mama_status
mamaQueue_destroy (mamaQueue queue)
{
mamaQueueImpl* impl = (mamaQueueImpl*)queue;
mama_status status = MAMA_STATUS_OK;
mama_log (MAMA_LOG_LEVEL_FINEST, "Entering mamaQueue_destroy for queue 0x%X.", queue);
impl->mIsDispatching = 0;
if (!queue)
{
mama_log (MAMA_LOG_LEVEL_ERROR, "mamaQueue_destroy(): NULL queue.");
return MAMA_STATUS_NULL_ARG;
}
/* The queue can only be destroyed if there are no open event objects. */
status = MAMA_STATUS_QUEUE_OPEN_OBJECTS;
/* Only continue if the object count is 0. */
if(0 == wInterlocked_read(&impl->mNumberOpenObjects))
{
if (impl->mMamaQueueBridgeImpl)
{
if (MAMA_STATUS_OK!=(status=impl->mBridgeImpl->bridgeMamaQueueDestroy (
impl->mMamaQueueBridgeImpl)))
{
mama_log (MAMA_LOG_LEVEL_ERROR,
"mamaQueue_destroy(): Could not destroy queue bridge.");
/*We should continue and free up the rest of the structure.*/
}
}
if (impl->mDispatcher)
{
/* We don't want the dispatcher to access a destroyed queue */
((mamaDispatcherImpl*)(impl->mDispatcher))->mIsDispatching = 0;
((mamaDispatcherImpl*)(impl->mDispatcher))->mQueue = NULL;
}
/*Destroy the cached mamaMsg - no longer needed*/
if (impl->mMsg) mamaMsg_destroy (impl->mMsg);
if (impl->mInitialStat)
{
mamaStat_destroy (impl->mInitialStat);
impl->mInitialStat = NULL;
}
if (impl->mRecapStat)
{
mamaStat_destroy (impl->mRecapStat);
impl->mRecapStat = NULL;
}
if (impl->mUnknownMsgStat)
{
mamaStat_destroy (impl->mUnknownMsgStat);
impl->mUnknownMsgStat = NULL;
}
if (impl->mMessageStat)
{
mamaStat_destroy (impl->mMessageStat);
impl->mMessageStat = NULL;
}
if (impl->mQueueSizeStat)
{
mamaStat_destroy (impl->mQueueSizeStat);
impl->mQueueSizeStat = NULL;
}
if (impl->mSubscriptionStat)
{
mamaStat_destroy (impl->mSubscriptionStat);
impl->mSubscriptionStat = NULL;
}
if (impl->mTimeoutStat)
{
mamaStat_destroy (impl->mTimeoutStat);
impl->mTimeoutStat = NULL;
}
if (impl->mWombatMsgsStat)
{
mamaStat_destroy (impl->mWombatMsgsStat);
impl->mWombatMsgsStat = NULL;
}
if (impl->mFastMsgsStat)
{
mamaStat_destroy (impl->mFastMsgsStat);
impl->mFastMsgsStat = NULL;
}
if (impl->mRvMsgsStat)
{
mamaStat_destroy (impl->mRvMsgsStat);
impl->mRvMsgsStat = NULL;
}
if (impl->mStatsCollector)
{
mamaStatsGenerator_removeStatsCollector (mamaInternal_getStatsGenerator(), impl->mStatsCollector);
mamaStatsCollector_destroy (impl->mStatsCollector);
impl->mStatsCollector = NULL;
}
if (impl->mQueueName)
free ((void*)impl->mQueueName);
impl->mBridgeImpl = NULL;
impl->mMamaQueueBridgeImpl = NULL;
impl->mMsg = NULL;
/* Destroy the counter lock */
wInterlocked_destroy(&impl->mNumberOpenObjects);
free (impl);
mama_log (MAMA_LOG_LEVEL_FINEST, "Leaving mamaQueue_destroy for queue 0x%X.", queue);
status = MAMA_STATUS_OK;
}
return status;
}
int
mamaQueueImpl_isDispatching (mamaQueue queue)
{
mamaQueueImpl* impl = (mamaQueueImpl*)queue;
return wInterlocked_read (&impl->mIsDispatching);
}
