void IoTHubClient_LL_Destroy(IOTHUB_CLIENT_LL_HANDLE iotHubClientHandle)
{
/*Codes_SRS_IOTHUBCLIENT_LL_02_009: [IoTHubClient_LL_Destroy shall do nothing if parameter iotHubClientHandle is NULL.]*/
if (iotHubClientHandle != NULL)
{
PDLIST_ENTRY unsend;
/*Codes_SRS_IOTHUBCLIENT_LL_17_010: [IoTHubClient_LL_Destroy shall call the underlaying layer's _Unregister function] */
IOTHUB_CLIENT_LL_HANDLE_DATA* handleData = (IOTHUB_CLIENT_LL_HANDLE_DATA*)iotHubClientHandle;
handleData->IoTHubTransport_Unregister(handleData->deviceHandle);
if (handleData->isSharedTransport == false)
{
/*Codes_SRS_IOTHUBCLIENT_LL_02_010: [If iotHubClientHandle was not created by IoTHubClient_LL_CreateWithTransport, IoTHubClient_LL_Destroy shall call the underlaying layer's _Destroy function.] */
handleData->IoTHubTransport_Destroy(handleData->transportHandle);
}
/*if any, remove the items currently not send*/
while ((unsend = DList_RemoveHeadList(&(handleData->waitingToSend))) != &(handleData->waitingToSend))
{
IOTHUB_MESSAGE_LIST* temp = containingRecord(unsend, IOTHUB_MESSAGE_LIST, entry);
/*Codes_SRS_IOTHUBCLIENT_LL_02_033: [Otherwise, IoTHubClient_LL_Destroy shall complete all the event message callbacks that are in the waitingToSend list with the result IOTHUB_CLIENT_CONFIRMATION_BECAUSE_DESTROY.] */
if (temp->callback != NULL)
{
temp->callback(IOTHUB_CLIENT_CONFIRMATION_BECAUSE_DESTROY, temp->context);
}
IoTHubMessage_Destroy(temp->messageHandle);
free(temp);
}
/*Codes_SRS_IOTHUBCLIENT_LL_17_011: [IoTHubClient_LL_Destroy shall free the resources allocated by IoTHubClient (if any).] */
tickcounter_destroy(handleData->tickCounter);
IoTHubClient_LL_UploadToBlob_Destroy(handleData->uploadToBlobHandle);
free(handleData);
}
}
void IoTHubClient_LL_SendComplete(IOTHUB_CLIENT_LL_HANDLE handle, PDLIST_ENTRY completed, IOTHUB_BATCHSTATE_RESULT result)
{
/*Codes_SRS_IOTHUBCLIENT_LL_02_022: [If parameter completed is NULL, or parameter handle is NULL then IoTHubClient_LL_SendBatch shall return.]*/
if (
(handle == NULL) ||
(completed == NULL)
)
{
/*"shall return"*/
LogError("invalid arg");
}
else
{
/*Codes_SRS_IOTHUBCLIENT_LL_02_027: [If parameter result is IOTHUB_BACTHSTATE_FAILED then IoTHubClient_LL_SendComplete shall call all the non-NULL callbacks with the result parameter set to IOTHUB_CLIENT_CONFIRMATION_ERROR and the context set to the context passed originally in the SendEventAsync call.] */
/*Codes_SRS_IOTHUBCLIENT_LL_02_025: [If parameter result is IOTHUB_BATCHSTATE_SUCCESS then IoTHubClient_LL_SendComplete shall call all the non-NULL callbacks with the result parameter set to IOTHUB_CLIENT_CONFIRMATION_OK and the context set to the context passed originally in the SendEventAsync call.]*/
IOTHUB_CLIENT_CONFIRMATION_RESULT resultToBeCalled = (result == IOTHUB_BATCHSTATE_SUCCESS) ? IOTHUB_CLIENT_CONFIRMATION_OK : IOTHUB_CLIENT_CONFIRMATION_ERROR;
PDLIST_ENTRY oldest;
while ((oldest = DList_RemoveHeadList(completed)) != completed)
{
IOTHUB_MESSAGE_LIST* messageList = (IOTHUB_MESSAGE_LIST*)containingRecord(oldest, IOTHUB_MESSAGE_LIST, entry);
/*Codes_SRS_IOTHUBCLIENT_LL_02_026: [If any callback is NULL then there shall not be a callback call.]*/
if (messageList->callback != NULL)
{
messageList->callback(resultToBeCalled, messageList->context);
}
IoTHubMessage_Destroy(messageList->messageHandle);
free(messageList);
}
}
}
MESSAGE_HANDLE MESSAGE_QUEUE_front(MESSAGE_QUEUE_HANDLE handle)
{
MESSAGE_HANDLE result;
if (handle == NULL)
{
/*Codes_SRS_MESSAGE_QUEUE_17_019: [ MESSAGE_QUEUE_front shall return NULL if handle is NULL. ]*/
LogError("invalid argument handle (NULL).");
result = NULL;
}
else
{
/*Codes_SRS_MESSAGE_QUEUE_17_020: [ MESSAGE_QUEUE_front shall return NULL if the message queue is empty. ]*/
if (DList_IsListEmpty((PDLIST_ENTRY)&(handle->queue_head)))
{
result = NULL;
}
else
{
/*Codes_SRS_MESSAGE_QUEUE_17_021: [ On a non-empty queue, MESSAGE_QUEUE_front shall return the first remaining element that was pushed onto the message queue. ]*/
MESSAGE_QUEUE_STORAGE* entry = (MESSAGE_QUEUE_STORAGE*)DList_RemoveHeadList((PDLIST_ENTRY)&(handle->queue_head));
result = entry->message;
/*Codes_SRS_MESSAGE_QUEUE_17_022: [ The content of the message queue shall not be changed after calling MESSAGE_QUEUE_front. ]*/
DList_InsertHeadList((PDLIST_ENTRY)&(handle->queue_head), (PDLIST_ENTRY)entry);
}
}
return result;
}
void IoTHubTransportMqtt_Destroy(TRANSPORT_HANDLE handle)
{
/* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_012: [IoTHubTransportMqtt_Destroy shall do nothing if parameter handle is NULL.] */
PMQTTTRANSPORT_HANDLE_DATA transportState = (PMQTTTRANSPORT_HANDLE_DATA)handle;
if (transportState != NULL)
{
transportState->destroyCalled = true;
DisconnectFromClient(transportState);
//Empty the Waiting for Ack Messages.
while (!DList_IsListEmpty(&transportState->waitingForAck))
{
PDLIST_ENTRY currentEntry = DList_RemoveHeadList(&transportState->waitingForAck);
MQTT_MESSAGE_DETAILS_LIST* mqttMsgEntry = containingRecord(currentEntry, MQTT_MESSAGE_DETAILS_LIST, entry);
sendMsgComplete(mqttMsgEntry->iotHubMessageEntry, transportState, IOTHUB_BATCHSTATE_FAILED);
free(mqttMsgEntry);
}
/* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_014: [IoTHubTransportMqtt_Destroy shall free all the resources currently in use.] */
mqtt_client_deinit(transportState->mqttClient);
STRING_delete(transportState->mqttEventTopic);
STRING_delete(transportState->mqttMessageTopic);
STRING_delete(transportState->device_id);
STRING_delete(transportState->device_key);
STRING_delete(transportState->sasTokenSr);
STRING_delete(transportState->hostAddress);
STRING_delete(transportState->configPassedThroughUsername);
tickcounter_destroy(g_msgTickCounter);
free(transportState);
}
}
static MESSAGE_HANDLE message_pop(MESSAGE_QUEUE_HANDLE_DATA* handle)
{
MESSAGE_HANDLE result;
if (DList_IsListEmpty((PDLIST_ENTRY)&(handle->queue_head)))
{
/*Codes_SRS_MESSAGE_QUEUE_17_013: [ MESSAGE_QUEUE_pop shall return NULL on an empty message queue. ]*/
result = NULL;
}
else
{
/*Codes_SRS_MESSAGE_QUEUE_17_014: [ MESSAGE_QUEUE_pop shall remove messages from the queue in a first-in-first-out order. ]*/
/*Codes_SRS_MESSAGE_QUEUE_17_015: [ A successful call to MESSAGE_QUEUE_pop on a queue with one message will cause the message queue to be empty. ]*/
MESSAGE_QUEUE_STORAGE* entry =
(MESSAGE_QUEUE_STORAGE*)DList_RemoveHeadList( (PDLIST_ENTRY)&(handle->queue_head));
result = ((MESSAGE_QUEUE_STORAGE*)entry)->message;
/*Codes_SRS_MESSAGE_QUEUE_17_006: [ MESSAGE_QUEUE_destroy shall free all allocated resources. ]*/
free(entry);
}
return result;
}
void MQTTAPI_DoWork(MQTTAPI_HANDLE instance)
{
PMQTTTAPI_HANDLE_DATA handle = instance;
/* Codes_SRS_MQTTAPI_04_050: [if parameter instance is NULL then MQTTAPI_DoWork shall not perform any action.] */
if (handle != NULL)
{
if (!checkAndTryToConnect(handle))
{
LogError("Client Not Connected and could not connect.\r\n");
}
else
{
if (Lock(handle->LockHandle) == LOCK_OK)
{
//message
{
PDLIST_ENTRY received;
while ((received = DList_RemoveHeadList(&(handle->messagesReceived))) != &(handle->messagesReceived))
{
MQTTAPI_MESSAGE_RECEIVED_LIST* temp = containingRecord(received, MQTTAPI_MESSAGE_RECEIVED_LIST, entry);
if (handle->maCallBack != NULL)
{
if (!handle->maCallBack(handle->maCallbackContext, temp->messageReceived))
{
LogError("Client could not handle message, dropping it.");
}
}
free(temp->messageReceived->payload);
free(temp->messageReceived);
free(temp);
}
}
Unlock(handle->LockHandle);
}
else
{
LogError("Could not aquire lock for message.\r\n");
}
//Event
{
PDLIST_ENTRY messageToSend;
while ((messageToSend = DList_RemoveHeadList(&(handle->messagesToSend))) != &(handle->messagesToSend))
{
MQTTAPI_MESSAGE_SEND_LIST* temp = containingRecord(messageToSend, MQTTAPI_MESSAGE_SEND_LIST, entry);
if (MQTTClient_publishMessage(handle->client, STRING_c_str(temp->topicName), temp->messageToSend, &(temp->dt)) != MQTTCLIENT_SUCCESS)
{
handle->dcCallback(temp->context, MQTTAPI_CONFIRMATION_ERROR);
MQTTClient_freeMessage(&(temp->messageToSend));
free(temp->messageToSend);
STRING_delete(temp->topicName);
free(temp);
}
else
{
DList_InsertTailList(&(handle->messagesSent), &(temp->entry));
}
}
}
}
}
}
void MQTTAPI_Destroy(MQTTAPI_HANDLE instance)
{
PMQTTTAPI_HANDLE_DATA mqttHandleData = instance;
/* Codes_SRS_MQTTAPI_04_021: [If parameter instance is NULL then MQTTAPI_Destroy shall take no action.] */
if (mqttHandleData != NULL)
{
/* Codes_SRS_MQTTAPI_04_022: [MQTTAPI_Destroy shall free all resources used by MQTTAPI_HANDLE.] */
STRING_delete(mqttHandleData->device_id);
STRING_delete(mqttHandleData->device_key);
STRING_delete(mqttHandleData->sasTokenSr);
/* Codes_SRS_MQTTAPI_04_049: [If the instance is connected, MQTTAPI_Destroy shall disconnect the instance] */
if (mqttHandleData->subscribed)
{
MQTTAPI_Unsubscribe(mqttHandleData->subscribedTopicHandleData);
}
if (mqttHandleData->connected)
{
MQTTClient_disconnect(mqttHandleData->client, 0);
}
/* Codes_SRS_MQTTAPI_04_053: [If there are messages to be sent MQTTAPI_Destroy shall signalize the user that the message couldn’t be sent by reason of MQTTAPI_CONFIRMATION_BECAUSE_DESTROY] */
{
PDLIST_ENTRY received;
while ((received = DList_RemoveHeadList(&(mqttHandleData->messagesReceived))) != &(mqttHandleData->messagesReceived))
{
MQTTAPI_MESSAGE_RECEIVED_LIST* temp = containingRecord(received, MQTTAPI_MESSAGE_RECEIVED_LIST, entry);
if (mqttHandleData->maCallBack != NULL)
{
if (!mqttHandleData->maCallBack(mqttHandleData->maCallbackContext, temp->messageReceived))
{
LogError("Client could not handle message, dropping it.");
}
}
free(temp->messageReceived->payload);
free(temp->messageReceived);
free(temp);
}
}
{
PDLIST_ENTRY messageToSend;
while ((messageToSend = DList_RemoveHeadList(&(mqttHandleData->messagesToSend))) != &(mqttHandleData->messagesToSend))
{
MQTTAPI_MESSAGE_SEND_LIST* temp = containingRecord(messageToSend, MQTTAPI_MESSAGE_SEND_LIST, entry);
if (mqttHandleData->dcCallback != NULL)
{
mqttHandleData->dcCallback(temp->context, MQTTAPI_CONFIRMATION_BECAUSE_DESTROY);
MQTTClient_freeMessage(&(temp->messageToSend));
free(temp->messageToSend);
STRING_delete(temp->topicName);
free(temp);
}
}
}
{
PDLIST_ENTRY currentListEntry;
while ((currentListEntry = DList_RemoveHeadList(&(mqttHandleData->messagesSent))) != &(mqttHandleData->messagesSent))
{
MQTTAPI_MESSAGE_SEND_LIST* temp = containingRecord(currentListEntry, MQTTAPI_MESSAGE_SEND_LIST, entry);
if (mqttHandleData->dcCallback != NULL)
{
mqttHandleData->dcCallback(temp->context, MQTTAPI_CONFIRMATION_BECAUSE_DESTROY);
MQTTClient_freeMessage(&(temp->messageToSend));
free(temp->messageToSend);
STRING_delete(temp->topicName);
free(temp);
}
}
}
MQTTClient_destroy(mqttHandleData->client);
Lock_Deinit(mqttHandleData->LockHandle);
free(mqttHandleData);
}
}