static void sendMsgComplete(IOTHUB_MESSAGE_LIST* iothubMsgList, PMQTTTRANSPORT_HANDLE_DATA transportState, IOTHUB_BATCHSTATE_RESULT batchResult)
{
DLIST_ENTRY messageCompleted;
DList_InitializeListHead(&messageCompleted);
DList_InsertTailList(&messageCompleted, &(iothubMsgList->entry));
IoTHubClient_LL_SendComplete(transportState->llClientHandle, &messageCompleted, batchResult);
}
int MESSAGE_QUEUE_push(MESSAGE_QUEUE_HANDLE handle, MESSAGE_HANDLE element)
{
int result;
if (handle == NULL || element == NULL)
{
/*Codes_SRS_MESSAGE_QUEUE_17_007: [ MESSAGE_QUEUE_push shall return a non-zero value if handle or element are NULL. ]*/
LogError("invalid argument - handle(%p), element(%p).", handle, element);
result = __LINE__;
}
else
{
MESSAGE_QUEUE_STORAGE* temp = (MESSAGE_QUEUE_STORAGE*)malloc(sizeof(MESSAGE_QUEUE_STORAGE));
if (temp == NULL)
{
/*Codes_SRS_MESSAGE_QUEUE_17_009: [ MESSAGE_QUEUE_push shall return a non-zero value if any system call fails. ]*/
LogError("malloc failed.");
result = __LINE__;
}
else
{
DList_InitializeListHead((PDLIST_ENTRY)temp);
temp->message = element;
/*Codes_SRS_MESSAGE_QUEUE_17_011: [ Messages shall be pushed into the queue in a first-in-first-out order. ]*/
DList_AppendTailList((PDLIST_ENTRY)&(handle->queue_head), (PDLIST_ENTRY)temp);
/*Codes_SRS_MESSAGE_QUEUE_17_008: [ MESSAGE_QUEUE_push shall return zero on success. ]*/
result = 0;
}
}
return result;
}
IOTHUB_CLIENT_LL_HANDLE IoTHubClient_LL_Create(const IOTHUB_CLIENT_CONFIG* config)
{
IOTHUB_CLIENT_LL_HANDLE result;
/*Codes_SRS_IOTHUBCLIENT_LL_02_001: [IoTHubClient_LL_Create shall return NULL if config parameter is NULL or protocol field is NULL.]*/
if (
(config == NULL) ||
(config->protocol == NULL)
)
{
result = NULL;
LogError("invalid configuration (NULL detected)\r\n");
}
else
{
IOTHUB_CLIENT_LL_HANDLE_DATA* handleData = (IOTHUB_CLIENT_LL_HANDLE_DATA*)malloc(sizeof(IOTHUB_CLIENT_LL_HANDLE_DATA));
if (handleData == NULL)
{
LogError("malloc failed\r\n");
result = NULL;
}
else
{
/*Codes_SRS_IOTHUBCLIENT_LL_02_004: [Otherwise IoTHubClient_LL_Create shall initialize a new DLIST (further called "waitingToSend") containing records with fields of the following types: IOTHUB_MESSAGE_HANDLE, IOTHUB_CLIENT_EVENT_CONFIRMATION_CALLBACK, void*.]*/
IOTHUBTRANSPORT_CONFIG lowerLayerConfig;
DList_InitializeListHead(&(handleData->waitingToSend));
handleData->IoTHubTransport_SetOption = ((TRANSPORT_PROVIDER*)config->protocol())->IoTHubTransport_SetOption;
handleData->IoTHubTransport_Create = ((TRANSPORT_PROVIDER*)config->protocol())->IoTHubTransport_Create;
handleData->IoTHubTransport_Destroy = ((TRANSPORT_PROVIDER*)config->protocol())->IoTHubTransport_Destroy;
handleData->IoTHubTransport_Subscribe = ((TRANSPORT_PROVIDER*)config->protocol())->IoTHubTransport_Subscribe;
handleData->IoTHubTransport_Unsubscribe = ((TRANSPORT_PROVIDER*)config->protocol())->IoTHubTransport_Unsubscribe;
handleData->IoTHubTransport_DoWork = ((TRANSPORT_PROVIDER*)config->protocol())->IoTHubTransport_DoWork;
handleData->IoTHubTransport_GetSendStatus = ((TRANSPORT_PROVIDER*)config->protocol())->IoTHubTransport_GetSendStatus;
handleData->messageCallback = NULL;
handleData->messageUserContextCallback = NULL;
handleData->lastMessageReceiveTime = INDEFINITE_TIME;
/*Codes_SRS_IOTHUBCLIENT_LL_02_006: [IoTHubClient_LL_Create shall populate a structure of type IOTHUBTRANSPORT_CONFIG with the information from config parameter and the previous DLIST and shall pass that to the underlying layer _Create function.]*/
lowerLayerConfig.upperConfig = config;
lowerLayerConfig.waitingToSend = &(handleData->waitingToSend);
/*Codes_SRS_IOTHUBCLIENT_LL_02_007: [If the underlaying layer _Create function fails them IoTHubClient_LL_Create shall fail and return NULL.] */
if ((handleData->transportHandle = handleData->IoTHubTransport_Create(&lowerLayerConfig)) == NULL)
{
LogError("underlying transport failed\r\n");
free(handleData);
result = NULL;
}
else
{
/*Codes_SRS_IOTHUBCLIENT_LL_02_008: [Otherwise, IoTHubClient_LL_Create shall succeed and return a non-NULL handle.] */
result = handleData;
}
}
}
return result;
}
MESSAGE_QUEUE_HANDLE MESSAGE_QUEUE_create()
{
MESSAGE_QUEUE_HANDLE_DATA* result;
result = (MESSAGE_QUEUE_HANDLE_DATA*)malloc(sizeof(MESSAGE_QUEUE_HANDLE_DATA));
if (result == NULL)
{
/*Codes_SRS_MESSAGE_QUEUE_17_003: [ On a failure, MESSAGE_QUEUE_create shall return NULL. ]*/
LogError("malloc failed.");
}
else
{
/*Codes_SRS_MESSAGE_QUEUE_17_001: [ On a successful call, MESSAGE_QUEUE_create shall return a non-NULL value in MESSAGE_QUEUE_HANDLE. ]*/
/*Codes_SRS_MESSAGE_QUEUE_17_002: [ A newly created message queue shall be empty. ]*/
DList_InitializeListHead((PDLIST_ENTRY)&(result->queue_head));
result->queue_head.message = NULL;
}
return result;
}
IOTHUB_CLIENT_LL_HANDLE IoTHubClient_LL_CreateWithTransport(const IOTHUB_CLIENT_DEVICE_CONFIG * config)
{
IOTHUB_CLIENT_LL_HANDLE result;
/*Codes_SRS_IOTHUBCLIENT_LL_17_001: [IoTHubClient_LL_CreateWithTransport shall return NULL if config parameter is NULL, or protocol field is NULL or transportHandle is NULL.]*/
if (
(config == NULL) ||
(config->protocol == NULL) ||
(config->transportHandle == NULL)
)
{
result = NULL;
LogError("invalid configuration (NULL detected)");
}
else
{
/*Codes_SRS_IOTHUBCLIENT_LL_17_002: [IoTHubClient_LL_CreateWithTransport shall allocate data for the IOTHUB_CLIENT_LL_HANDLE.]*/
IOTHUB_CLIENT_LL_HANDLE_DATA* handleData = (IOTHUB_CLIENT_LL_HANDLE_DATA*)malloc(sizeof(IOTHUB_CLIENT_LL_HANDLE_DATA));
if (handleData == NULL)
{
/*Codes_SRS_IOTHUBCLIENT_LL_17_003: [If allocation fails, the function shall fail and return NULL.] */
LogError("malloc failed");
result = NULL;
}
else
{
handleData->uploadToBlobHandle = NULL;
/*Codes_SRS_IOTHUBCLIENT_LL_02_047: [ IoTHubClient_LL_CreateWithTransport shall create a TICK_COUNTER_HANDLE. ]*/
if ((handleData->tickCounter = tickcounter_create()) == NULL)
{
/*Codes_SRS_IOTHUBCLIENT_LL_02_048: [ If creating the handle fails, then IoTHubClient_LL_CreateWithTransport shall fail and return NULL ]*/
LogError("unable to get a tickcounter");
free(handleData);
result = NULL;
}
else
{
/*Codes_SRS_IOTHUBCLIENT_LL_17_004: [IoTHubClient_LL_CreateWithTransport shall initialize a new DLIST (further called "waitingToSend") containing records with fields of the following types: IOTHUB_MESSAGE_HANDLE, IOTHUB_CLIENT_EVENT_CONFIRMATION_CALLBACK, void*.]*/
DList_InitializeListHead(&(handleData->waitingToSend));
setTransportProtocol(handleData, (TRANSPORT_PROVIDER*)config->protocol());
handleData->messageCallback = NULL;
handleData->messageUserContextCallback = NULL;
handleData->lastMessageReceiveTime = INDEFINITE_TIME;
handleData->transportHandle = config->transportHandle;
IOTHUB_DEVICE_CONFIG deviceConfig;
deviceConfig.deviceId = config->deviceId;
deviceConfig.deviceKey = config->deviceKey;
deviceConfig.deviceSasToken = config->deviceSasToken;
/*Codes_SRS_IOTHUBCLIENT_LL_17_006: [IoTHubClient_LL_CreateWithTransport shall call the transport _Register function with the IOTHUB_DEVICE_CONFIG populated structure and waitingToSend list.]*/
if ((handleData->deviceHandle = handleData->IoTHubTransport_Register(config->transportHandle, &deviceConfig, handleData, &(handleData->waitingToSend))) == NULL)
{
/*Codes_SRS_IOTHUBCLIENT_LL_17_007: [If the _Register function fails, this function shall fail and return NULL.]*/
LogError("Registering device in transport failed");
tickcounter_destroy(handleData->tickCounter);
free(handleData);
result = NULL;
}
else
{
/*Codes_SRS_IOTHUBCLIENT_LL_17_005: [IoTHubClient_LL_CreateWithTransport shall save the transport handle and mark this transport as shared.]*/
handleData->isSharedTransport = true;
/*Codes_SRS_IOTHUBCLIENT_LL_02_042: [ By default, messages shall not timeout. ]*/
handleData->currentMessageTimeout = 0;
result = handleData;
}
}
}
}
return result;
}
IOTHUB_CLIENT_LL_HANDLE IoTHubClient_LL_Create(const IOTHUB_CLIENT_CONFIG* config)
{
IOTHUB_CLIENT_LL_HANDLE result;
/*Codes_SRS_IOTHUBCLIENT_LL_02_001: [IoTHubClient_LL_Create shall return NULL if config parameter is NULL or protocol field is NULL.]*/
if(
(config == NULL) ||
(config->protocol == NULL)
)
{
result = NULL;
LogError("invalid configuration (NULL detected)");
}
else
{
IOTHUB_CLIENT_LL_HANDLE_DATA* handleData = (IOTHUB_CLIENT_LL_HANDLE_DATA*)malloc(sizeof(IOTHUB_CLIENT_LL_HANDLE_DATA));
if (handleData == NULL)
{
LogError("malloc failed");
result = NULL;
}
else
{
/*Codes_SRS_IOTHUBCLIENT_LL_02_094: [ IoTHubClient_LL_Create shall create a IOTHUB_CLIENT_LL_UPLOADTOBLOB_HANDLE from IOTHUB_CLIENT_CONFIG. ]*/
/*Codes_SRS_IOTHUBCLIENT_LL_02_092: [ IoTHubClient_LL_CreateFromConnectionString shall create a IOTHUB_CLIENT_LL_UPLOADTOBLOB_HANDLE from IOTHUB_CLIENT_CONFIG. ]*/
handleData->uploadToBlobHandle = IoTHubClient_LL_UploadToBlob_Create(config);
if (handleData->uploadToBlobHandle == NULL)
{
/*Codes_SRS_IOTHUBCLIENT_LL_02_093: [ If creating the IOTHUB_CLIENT_LL_UPLOADTOBLOB_HANDLE fails then IoTHubClient_LL_CreateFromConnectionString shall fail and return NULL. ]*/
/*Codes_SRS_IOTHUBCLIENT_LL_02_095: [ If creating the IOTHUB_CLIENT_LL_UPLOADTOBLOB_HANDLE fails then IoTHubClient_LL_Create shall fail and return NULL. ]*/
LogError("unable to IoTHubClient_LL_UploadToBlob_Create");
free(handleData);
result = NULL;
}
else
{
/*Codes_SRS_IOTHUBCLIENT_LL_02_045: [ Otherwise IoTHubClient_LL_Create shall create a new TICK_COUNTER_HANDLE ]*/
if ((handleData->tickCounter = tickcounter_create()) == NULL)
{
/*Codes_SRS_IOTHUBCLIENT_LL_02_046: [ If creating the TICK_COUNTER_HANDLE fails then IoTHubClient_LL_Create shall fail and return NULL. ]*/
IoTHubClient_LL_UploadToBlob_Destroy(handleData->uploadToBlobHandle);
LogError("unable to get a tickcounter");
free(handleData);
result = NULL;
}
else
{
/*Codes_SRS_IOTHUBCLIENT_LL_02_004: [Otherwise IoTHubClient_LL_Create shall initialize a new DLIST (further called "waitingToSend") containing records with fields of the following types: IOTHUB_MESSAGE_HANDLE, IOTHUB_CLIENT_EVENT_CONFIRMATION_CALLBACK, void*.]*/
IOTHUBTRANSPORT_CONFIG lowerLayerConfig;
DList_InitializeListHead(&(handleData->waitingToSend));
setTransportProtocol(handleData, (TRANSPORT_PROVIDER*)config->protocol());
handleData->messageCallback = NULL;
handleData->messageUserContextCallback = NULL;
handleData->lastMessageReceiveTime = INDEFINITE_TIME;
/*Codes_SRS_IOTHUBCLIENT_LL_02_006: [IoTHubClient_LL_Create shall populate a structure of type IOTHUBTRANSPORT_CONFIG with the information from config parameter and the previous DLIST and shall pass that to the underlying layer _Create function.]*/
lowerLayerConfig.upperConfig = config;
lowerLayerConfig.waitingToSend = &(handleData->waitingToSend);
/*Codes_SRS_IOTHUBCLIENT_LL_02_007: [If the underlaying layer _Create function fails them IoTHubClient_LL_Create shall fail and return NULL.] */
if ((handleData->transportHandle = handleData->IoTHubTransport_Create(&lowerLayerConfig)) == NULL)
{
LogError("underlying transport failed");
IoTHubClient_LL_UploadToBlob_Destroy(handleData->uploadToBlobHandle);
tickcounter_destroy(handleData->tickCounter);
free(handleData);
result = NULL;
}
else
{
IOTHUB_DEVICE_CONFIG deviceConfig;
deviceConfig.deviceId = config->deviceId;
deviceConfig.deviceKey = config->deviceKey;
deviceConfig.deviceSasToken = config->deviceSasToken;
/*Codes_SRS_IOTHUBCLIENT_LL_17_008: [IoTHubClient_LL_Create shall call the transport _Register function with a populated structure of type IOTHUB_DEVICE_CONFIG and waitingToSend list.] */
if ((handleData->deviceHandle = handleData->IoTHubTransport_Register(handleData->transportHandle, &deviceConfig, handleData, &(handleData->waitingToSend))) == NULL)
{
/*Codes_SRS_IOTHUBCLIENT_LL_17_009: [If the _Register function fails, this function shall fail and return NULL.]*/
LogError("Registering device in transport failed");
handleData->IoTHubTransport_Destroy(handleData->transportHandle);
IoTHubClient_LL_UploadToBlob_Destroy(handleData->uploadToBlobHandle);
tickcounter_destroy(handleData->tickCounter);
free(handleData);
result = NULL;
}
else
{
/*Codes_SRS_IOTHUBCLIENT_LL_02_008: [Otherwise, IoTHubClient_LL_Create shall succeed and return a non-NULL handle.] */
handleData->isSharedTransport = false;
/*Codes_SRS_IOTHUBCLIENT_LL_02_042: [ By default, messages shall not timeout. ]*/
handleData->currentMessageTimeout = 0;
result = handleData;
}
}
}
}
}
}
return result;
}
static PMQTTTRANSPORT_HANDLE_DATA InitializeTransportHandleData(const IOTHUB_CLIENT_CONFIG* upperConfig, PDLIST_ENTRY waitingToSend)
{
PMQTTTRANSPORT_HANDLE_DATA state = (PMQTTTRANSPORT_HANDLE_DATA)malloc(sizeof(MQTTTRANSPORT_HANDLE_DATA));
if (state == NULL)
{
LogError("Could not create MQTT transport state. Memory allocation failed.\r\n");
}
else if ((state->device_id = STRING_construct(upperConfig->deviceId)) == NULL)
{
free(state);
state = NULL;
}
else if ((state->device_key = STRING_construct(upperConfig->deviceKey)) == NULL)
{
LogError("Could not create device key for MQTT\r\n");
STRING_delete(state->device_id);
free(state);
state = NULL;
}
else if ( (state->sasTokenSr = ConstructSasToken(upperConfig->iotHubName, upperConfig->iotHubSuffix, upperConfig->deviceId) ) == NULL)
{
LogError("Could not create Sas Token Sr String.\r\n");
STRING_delete(state->device_key);
STRING_delete(state->device_id);
free(state);
state = NULL;
}
else if ( (state->mqttEventTopic = ConstructEventTopic(upperConfig->deviceId) ) == NULL)
{
LogError("Could not create mqttEventTopic for MQTT\r\n");
STRING_delete(state->sasTokenSr);
STRING_delete(state->device_key);
STRING_delete(state->device_id);
free(state);
state = NULL;
}
else if ((state->mqttMessageTopic = ConstructMessageTopic(upperConfig->deviceId) ) == NULL)
{
LogError("Could not create mqttMessageTopic for MQTT\r\n");
STRING_delete(state->mqttEventTopic);
STRING_delete(state->sasTokenSr);
STRING_delete(state->device_key);
STRING_delete(state->device_id);
free(state);
state = NULL;
}
else
{
state->mqttClient = mqtt_client_init(MqttRecvCallback, MqttOpCompleteCallback, state, defaultPrintLogFunction);
if (state->mqttClient == NULL)
{
STRING_delete(state->mqttEventTopic);
STRING_delete(state->mqttMessageTopic);
STRING_delete(state->sasTokenSr);
STRING_delete(state->device_key);
STRING_delete(state->device_id);
free(state);
state = NULL;
}
else
{
/* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_008: [The hostname shall be constructed using the iothubname and iothubSuffix.] */
// TODO: need to strip the ssl or http or tls
char tempAddress[DEFAULT_TEMP_STRING_LEN];
(void)snprintf(tempAddress, DEFAULT_TEMP_STRING_LEN, "%s.%s", upperConfig->iotHubName, upperConfig->iotHubSuffix);
if ((state->hostAddress = STRING_construct(tempAddress)) == NULL)
{
STRING_delete(state->mqttEventTopic);
STRING_delete(state->mqttMessageTopic);
STRING_delete(state->sasTokenSr);
STRING_delete(state->device_key);
STRING_delete(state->device_id);
free(state);
state = NULL;
}
else if ((state->configPassedThroughUsername = buildConfigForUsername(upperConfig)) == NULL)
{
STRING_delete(state->hostAddress);
STRING_delete(state->mqttEventTopic);
STRING_delete(state->mqttMessageTopic);
STRING_delete(state->sasTokenSr);
STRING_delete(state->device_key);
STRING_delete(state->device_id);
free(state);
state = NULL;
}
else
{
/* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_010: [IoTHubTransportMqtt_Create shall allocate memory to save its internal state where all topics, hostname, device_id, device_key, sasTokenSr and client handle shall be saved.] */
DList_InitializeListHead(&(state->waitingForAck));
state->destroyCalled = false;
state->subscribed = false;
state->connected = false;
state->packetId = 1;
state->llClientHandle = NULL;
state->xioTransport = NULL;
state->portNum = DEFAULT_PORT_NUMBER;
state->waitingToSend = waitingToSend;
state->currPacketState = CONNECT_TYPE;
}
}
}
return state;
}
MQTTAPI_HANDLE MQTTAPI_Create(const MQTTAPI_ConnectOptions* options)
{
PMQTTTAPI_HANDLE_DATA result;
/* Codes_SRS_MQTTAPI_04_011: [If any member of the parameter options is NULL or empty then MQTTAPI_Create shall return NULL.] */
if (options == NULL)
{
LogError("Invalid Argument. options cannot be NULL.\r\n")
result = NULL;
}
else if (options->deviceId == NULL || strlen(options->deviceId) <= 0)
{
LogError("Invalid Argument. Device Id cannot be NULL or Empty.\r\n")
result = NULL;
}
else if (options->deviceKey == NULL || strlen(options->deviceKey) <= 0)
{
LogError("Invalid Argument. Device Key cannot be NULL or Empty.\r\n")
result = NULL;
}
else if (options->serverURI == NULL || strlen(options->serverURI) <= 0)
{
LogError("Invalid Argument. Device Key cannot be NULL or Empty.\r\n")
result = NULL;
}
else if (options->sasTokenSr == NULL || strlen(options->sasTokenSr) <= 0)
{
LogError("Invalid Argument. sasTokenSr cannot be NULL or Empty.\r\n")
result = NULL;
}
/* Tests_SRS_MQTTAPI_04_014: [Otherwise, MQTTAPI_Create shall return a MQTTAPI_HANDLE suitable for further calls to the module.] */
else
{
result = (PMQTTTAPI_HANDLE_DATA)malloc(sizeof(MQTTTAPI_HANDLE_DATA));
if (result != NULL)
{
result->connected = false;
result->subscribed = false;
result->dcCallback = NULL;
result->maCallBack = NULL;
result->maCallbackContext = NULL;
result->subscribedTopicHandleData = NULL;
result->sasTokenLifetime = SAS_TOKEN_DEFAULT_LIFETIME;
result->sasRefreshLine = SAS_TOKEN_DEFAULT_REFRESH_LINE;
DList_InitializeListHead(&(result->messagesReceived));
DList_InitializeListHead(&(result->messagesToSend));
DList_InitializeListHead(&(result->messagesSent));
if ((result->LockHandle = Lock_Init()) == NULL)
{
LogError("Lock_Init failed\r\n");
free(result);
result = NULL;
}
/* Codes_SRS_MQTTAPI_04_012: [Parameters deviceId, deviceKey and sasTokenSr shall be saved.] */
else if ((result->device_id = STRING_construct(options->deviceId)) == NULL)
{
/* Codes_SRS_MQTTAPI_04_013: [If saving these parameters fail for any reason MQTTAPI_Create shall return NULL.] */
LogError("Could not create deviceId String.\r\n");
Lock_Deinit(result->LockHandle);
free(result);
result = NULL;
}
/* Codes_SRS_MQTTAPI_04_012: [Parameters deviceId, deviceKey and sasTokenSr shall be saved.] */
else if ((result->device_key = STRING_construct(options->deviceKey)) == NULL)
{
/* Codes_SRS_MQTTAPI_04_013: [If saving these parameters fail for any reason MQTTAPI_Create shall return NULL.] */
LogError("Could not create deviceId String.\r\n");
STRING_delete(result->device_id);
Lock_Deinit(result->LockHandle);
free(result);
result = NULL;
}
/* Codes_SRS_MQTTAPI_04_012: [Parameters deviceId, deviceKey and sasTokenSr shall be saved.] */
else if ((result->sasTokenSr = STRING_construct(options->sasTokenSr)) == NULL)
{
LogError("Could not create sasTokenSr String.\r\n");
STRING_delete(result->device_key);
STRING_delete(result->device_id);
Lock_Deinit(result->LockHandle);
free(result);
result = NULL;
}
else if (MQTTClient_create(&result->client, options->serverURI, STRING_c_str(result->device_id),
MQTTCLIENT_PERSISTENCE_NONE, NULL) != MQTTCLIENT_SUCCESS)
{
LogError("Could not create MQTT Client.\r\n");
STRING_delete(result->sasTokenSr);
STRING_delete(result->device_key);
STRING_delete(result->device_id);
Lock_Deinit(result->LockHandle);
free(result);
result = NULL;
}
/* Codes_SRS_MQTTAPI_04_004: [This function is registered when the user makes a call to MQTTAPI_SetCallbacks.] */
/* Codes_SRS_MQTTAPI_04_005: [The context parameter is a pointer to the original value passed by MQTTAPI_SetCallbacks, which contains application-specific context.] */
/* Codes_SRS_MQTTAPI_04_008: [This function is registered when the user makes a call to MQTTAPI_SetCallbacks.] */
else if (MQTTClient_setCallbacks(result->client, result, connectionLost, msgarrvd, delivered) != MQTTCLIENT_SUCCESS)
{
LogError("Could not set callbacks.\r\n");
STRING_delete(result->sasTokenSr);
STRING_delete(result->device_key);
STRING_delete(result->device_id);
MQTTClient_destroy(&result->client);
Lock_Deinit(result->LockHandle);
free(result);
result = NULL;
}
/* Codes_SRS_MQTTAPI_04_024: [MQTTAPI_Create shall call underlying library connection functions to establish connection with the server.] */
/* Codes_SRS_MQTTAPI_04_047: [Otherwise MQTTAPI_Create shall return a non-NULL MQTTAPI_HANDLE] */
else if (!checkAndTryToConnect(result))
{
/* Codes_SRS_MQTTAPI_04_025: [If connection fails MQTTAPI_Create shall return NULL. */
LogError("Could not Connect to MQTT Server.\r\n");
STRING_delete(result->sasTokenSr);
STRING_delete(result->device_key);
STRING_delete(result->device_id);
MQTTClient_destroy(&result->client);
Lock_Deinit(result->LockHandle);
free(result);
result = NULL;
}
}
else
{
/* Codes_SRS_MQTTAPI_04_015: [If creating instance fails for any reason, then MQTTAPI_Create shall return NULL.] */
LogError("Could not create MQTT API handle data. Memory allocation failed.\r\n");
result = NULL;
}
}
return (MQTTAPI_HANDLE)result;
}
IOTHUB_CLIENT_LL_HANDLE IoTHubClient_LL_CreateWithTransport(const IOTHUB_CLIENT_DEVICE_CONFIG * config)
{
IOTHUB_CLIENT_LL_HANDLE result;
/*Codes_SRS_IOTHUBCLIENT_LL_17_001: [IoTHubClient_LL_CreateWithTransport shall return NULL if config parameter is NULL, or protocol field is NULL or transportHandle is NULL.]*/
if (
(config == NULL) ||
(config->protocol == NULL) ||
(config->transportHandle == NULL) ||
/*Codes_SRS_IOTHUBCLIENT_LL_02_098: [ IoTHubClient_LL_CreateWithTransport shall fail and return NULL if both config->deviceKey AND config->deviceSasToken are NULL. ]*/
((config->deviceKey == NULL) && (config->deviceSasToken == NULL))
)
{
result = NULL;
LogError("invalid configuration (NULL detected)");
}
else
{
/*Codes_SRS_IOTHUBCLIENT_LL_17_002: [IoTHubClient_LL_CreateWithTransport shall allocate data for the IOTHUB_CLIENT_LL_HANDLE.]*/
IOTHUB_CLIENT_LL_HANDLE_DATA* handleData = (IOTHUB_CLIENT_LL_HANDLE_DATA*)malloc(sizeof(IOTHUB_CLIENT_LL_HANDLE_DATA));
if (handleData == NULL)
{
/*Codes_SRS_IOTHUBCLIENT_LL_17_003: [If allocation fails, the function shall fail and return NULL.] */
LogError("malloc failed");
result = NULL;
}
else
{
handleData->transportHandle = config->transportHandle;
setTransportProtocol(handleData, (TRANSPORT_PROVIDER*)config->protocol());
#ifndef DONT_USE_UPLOADTOBLOB
const char* hostname = STRING_c_str(handleData->IoTHubTransport_GetHostname(handleData->transportHandle));
/*Codes_SRS_IOTHUBCLIENT_LL_02_096: [ IoTHubClient_LL_CreateWithTransport shall create the data structures needed to instantiate a IOTHUB_CLIENT_LL_UPLOADTOBLOB_HANDLE. ]*/
/*the first '.' says where the iothubname finishes*/
const char* whereIsDot = strchr(hostname, '.');
if (whereIsDot == NULL)
{
/*Codes_SRS_IOTHUBCLIENT_LL_02_097: [ If creating the data structures fails or instantiating the IOTHUB_CLIENT_LL_UPLOADTOBLOB_HANDLE fails then IoTHubClient_LL_CreateWithTransport shall fail and return NULL. ]*/
LogError("unable to determine the IoTHub name");
free(handleData);
result = NULL;
}
else
{
/*Codes_SRS_IOTHUBCLIENT_LL_02_096: [ IoTHubClient_LL_CreateWithTransport shall create the data structures needed to instantiate a IOTHUB_CLIENT_LL_UPLOADTOBLOB_HANDLE. ]*/
char* IoTHubName = malloc(whereIsDot - hostname + 1);
if (IoTHubName == NULL)
{
/*Codes_SRS_IOTHUBCLIENT_LL_02_097: [ If creating the data structures fails or instantiating the IOTHUB_CLIENT_LL_UPLOADTOBLOB_HANDLE fails then IoTHubClient_LL_CreateWithTransport shall fail and return NULL. ]*/
LogError("unable to malloc");
free(handleData);
result = NULL;
}
else
{
const char* IotHubSuffix = whereIsDot + 1;
memcpy(IoTHubName, hostname, whereIsDot - hostname);
IoTHubName[whereIsDot - hostname ] = '\0';
IOTHUB_CLIENT_CONFIG temp;
temp.deviceId = config->deviceId;
temp.deviceKey = config->deviceKey;
temp.deviceSasToken = config->deviceSasToken;
temp.iotHubName = IoTHubName;
temp.iotHubSuffix = IotHubSuffix;
temp.protocol = NULL; /*irrelevant to IoTHubClient_LL_UploadToBlob*/
temp.protocolGatewayHostName = NULL; /*irrelevant to IoTHubClient_LL_UploadToBlob*/
/*Codes_SRS_IOTHUBCLIENT_LL_02_097: [ If creating the data structures fails or instantiating the IOTHUB_CLIENT_LL_UPLOADTOBLOB_HANDLE fails then IoTHubClient_LL_CreateWithTransport shall fail and return NULL. ]*/
handleData->uploadToBlobHandle = IoTHubClient_LL_UploadToBlob_Create(&temp);
if (handleData->uploadToBlobHandle == NULL)
{
/*Codes_SRS_IOTHUBCLIENT_LL_02_096: [ IoTHubClient_LL_CreateWithTransport shall create the data structures needed to instantiate a IOTHUB_CLIENT_LL_UPLOADTOBLOB_HANDLE. ]*/
LogError("unable to IoTHubClient_LL_UploadToBlob_Create");
free(handleData);
result = NULL;
}
else
#endif
{
/*Codes_SRS_IOTHUBCLIENT_LL_02_047: [ IoTHubClient_LL_CreateWithTransport shall create a TICK_COUNTER_HANDLE. ]*/
if ((handleData->tickCounter = tickcounter_create()) == NULL)
{
/*Codes_SRS_IOTHUBCLIENT_LL_02_048: [ If creating the handle fails, then IoTHubClient_LL_CreateWithTransport shall fail and return NULL ]*/
LogError("unable to get a tickcounter");
#ifndef DONT_USE_UPLOADTOBLOB
IoTHubClient_LL_UploadToBlob_Destroy(handleData->uploadToBlobHandle);
#endif
free(handleData);
result = NULL;
}
else
{
/*Codes_SRS_IOTHUBCLIENT_LL_17_004: [IoTHubClient_LL_CreateWithTransport shall initialize a new DLIST (further called "waitingToSend") containing records with fields of the following types: IOTHUB_MESSAGE_HANDLE, IOTHUB_CLIENT_EVENT_CONFIRMATION_CALLBACK, void*.]*/
DList_InitializeListHead(&(handleData->waitingToSend));
handleData->messageCallback = NULL;
handleData->messageUserContextCallback = NULL;
handleData->lastMessageReceiveTime = INDEFINITE_TIME;
IOTHUB_DEVICE_CONFIG deviceConfig;
deviceConfig.deviceId = config->deviceId;
deviceConfig.deviceKey = config->deviceKey;
deviceConfig.deviceSasToken = config->deviceSasToken;
/*Codes_SRS_IOTHUBCLIENT_LL_17_006: [IoTHubClient_LL_CreateWithTransport shall call the transport _Register function with the IOTHUB_DEVICE_CONFIG populated structure and waitingToSend list.]*/
if ((handleData->deviceHandle = handleData->IoTHubTransport_Register(config->transportHandle, &deviceConfig, handleData, &(handleData->waitingToSend))) == NULL)
{
/*Codes_SRS_IOTHUBCLIENT_LL_17_007: [If the _Register function fails, this function shall fail and return NULL.]*/
LogError("Registering device in transport failed");
#ifndef DONT_USE_UPLOADTOBLOB
IoTHubClient_LL_UploadToBlob_Destroy(handleData->uploadToBlobHandle);
#endif
tickcounter_destroy(handleData->tickCounter);
free(handleData);
result = NULL;
}
else
{
/*Codes_SRS_IOTHUBCLIENT_LL_17_005: [IoTHubClient_LL_CreateWithTransport shall save the transport handle and mark this transport as shared.]*/
handleData->isSharedTransport = true;
/*Codes_SRS_IOTHUBCLIENT_LL_02_042: [ By default, messages shall not timeout. ]*/
handleData->currentMessageTimeout = 0;
result = handleData;
}
}
}
#ifndef DONT_USE_UPLOADTOBLOB
free(IoTHubName);
}
}
#endif
}
}
return result;
}
