// Copyright (c) Microsoft. All rights reserved. // Licensed under the MIT license. See LICENSE file in the project root for full license information. #include #include "umock_c/umock_c_prod.h" #include "azure_c_shared_utility/gballoc.h" #include #include #include "azure_c_shared_utility/optimize_size.h" #include "azure_c_shared_utility/crt_abstractions.h" #include "iothub_client_core.h" #include "iothub_client_core_ll.h" #include "internal/iothubtransport.h" #include "internal/iothub_client_private.h" #include "internal/iothubtransport.h" #include "azure_c_shared_utility/threadapi.h" #include "azure_c_shared_utility/lock.h" #include "azure_c_shared_utility/xlogging.h" #include "azure_c_shared_utility/singlylinkedlist.h" #include "azure_c_shared_utility/vector.h" #include "iothub_client_options.h" #include "azure_c_shared_utility/tickcounter.h" #include "azure_c_shared_utility/agenttime.h" #define DO_WORK_FREQ_DEFAULT 1 #define DO_WORK_MAXIMUM_ALLOWED_FREQUENCY 100 #define CLIENT_CORE_METHOD_EMPTY_PAYLOAD "{}" static const int DEFAULT_COMMAND_RESPONSE_STATUS_CODE = 500; struct IOTHUB_QUEUE_CONTEXT_TAG; typedef struct IOTHUB_CLIENT_CORE_INSTANCE_TAG { IOTHUB_CLIENT_CORE_LL_HANDLE IoTHubClientLLHandle; TRANSPORT_HANDLE TransportHandle; THREAD_HANDLE ThreadHandle; LOCK_HANDLE LockHandle; sig_atomic_t StopThread; SINGLYLINKEDLIST_HANDLE httpWorkerThreadInfoList; /*list containing HTTPWORKER_THREAD_INFO*/ int created_with_transport_handle; VECTOR_HANDLE saved_user_callback_list; IOTHUB_CLIENT_DEVICE_TWIN_CALLBACK desired_state_callback; IOTHUB_CLIENT_CONNECTION_STATUS_CALLBACK connection_status_callback; IOTHUB_CLIENT_DEVICE_METHOD_CALLBACK_ASYNC device_method_callback; IOTHUB_CLIENT_COMMAND_CALLBACK_ASYNC command_callback; IOTHUB_CLIENT_INBOUND_DEVICE_METHOD_CALLBACK inbound_device_method_callback; IOTHUB_CLIENT_MESSAGE_CALLBACK_ASYNC message_callback; struct IOTHUB_QUEUE_CONTEXT_TAG* devicetwin_user_context; struct IOTHUB_QUEUE_CONTEXT_TAG* connection_status_user_context; struct IOTHUB_QUEUE_CONTEXT_TAG* message_user_context; struct IOTHUB_QUEUE_CONTEXT_TAG* method_user_context; tickcounter_ms_t do_work_freq_ms; tickcounter_ms_t currentMessageTimeout; } IOTHUB_CLIENT_CORE_INSTANCE; typedef enum HTTPWORKER_THREAD_TYPE_TAG { HTTPWORKER_THREAD_UPLOAD_TO_BLOB, HTTPWORKER_THREAD_INVOKE_METHOD } HTTPWORKER_THREAD_TYPE; typedef struct UPLOADTOBLOB_SAVED_DATA_TAG { unsigned char* source; size_t size; IOTHUB_CLIENT_FILE_UPLOAD_CALLBACK iotHubClientFileUploadCallback; }UPLOADTOBLOB_SAVED_DATA; typedef struct UPLOADTOBLOB_MULTIBLOCK_SAVED_DATA_TAG { IOTHUB_CLIENT_FILE_UPLOAD_GET_DATA_CALLBACK getDataCallback; IOTHUB_CLIENT_FILE_UPLOAD_GET_DATA_CALLBACK_EX getDataCallbackEx; }UPLOADTOBLOB_MULTIBLOCK_SAVED_DATA; typedef struct INVOKE_METHOD_SAVED_DATA_TAG { const char* deviceId; const char* moduleId; const char* methodName; const char* methodPayload; unsigned int timeout; IOTHUB_METHOD_INVOKE_CALLBACK methodInvokeCallback; } INVOKE_METHOD_SAVED_DATA; typedef struct HTTPWORKER_THREAD_INFO_TAG { HTTPWORKER_THREAD_TYPE workerThreadType; char* destinationFileName; THREAD_HANDLE threadHandle; LOCK_HANDLE lockGarbage; int canBeGarbageCollected; /*flag indicating that the structure can be freed because the thread deadling with it finished*/ IOTHUB_CLIENT_CORE_HANDLE iotHubClientHandle; void* context; UPLOADTOBLOB_SAVED_DATA uploadBlobSavedData; INVOKE_METHOD_SAVED_DATA invokeMethodSavedData; UPLOADTOBLOB_MULTIBLOCK_SAVED_DATA uploadBlobMultiblockSavedData; }HTTPWORKER_THREAD_INFO; #define USER_CALLBACK_TYPE_VALUES \ CALLBACK_TYPE_DEVICE_TWIN, \ CALLBACK_TYPE_EVENT_CONFIRM, \ CALLBACK_TYPE_REPORTED_STATE, \ CALLBACK_TYPE_CONNECTION_STATUS, \ CALLBACK_TYPE_DEVICE_METHOD, \ CALLBACK_TYPE_INBOUND_DEVICE_METHOD, \ CALLBACK_TYPE_COMMAND, \ CALLBACK_TYPE_MESSAGE, \ CALLBACK_TYPE_INPUTMESSAGE MU_DEFINE_ENUM_WITHOUT_INVALID(USER_CALLBACK_TYPE, USER_CALLBACK_TYPE_VALUES) MU_DEFINE_ENUM_STRINGS_WITHOUT_INVALID(USER_CALLBACK_TYPE, USER_CALLBACK_TYPE_VALUES) typedef struct DEVICE_TWIN_CALLBACK_INFO_TAG { DEVICE_TWIN_UPDATE_STATE update_state; unsigned char* payLoad; size_t size; IOTHUB_CLIENT_DEVICE_TWIN_CALLBACK userCallback; void* userContext; } DEVICE_TWIN_CALLBACK_INFO; typedef struct EVENT_CONFIRM_CALLBACK_INFO_TAG { IOTHUB_CLIENT_CONFIRMATION_RESULT confirm_result; IOTHUB_CLIENT_EVENT_CONFIRMATION_CALLBACK eventConfirmationCallback; } EVENT_CONFIRM_CALLBACK_INFO; typedef struct REPORTED_STATE_CALLBACK_INFO_TAG { int status_code; IOTHUB_CLIENT_REPORTED_STATE_CALLBACK reportedStateCallback; } REPORTED_STATE_CALLBACK_INFO; typedef struct CONNECTION_STATUS_CALLBACK_INFO_TAG { IOTHUB_CLIENT_CONNECTION_STATUS connection_status; IOTHUB_CLIENT_CONNECTION_STATUS_REASON status_reason; } CONNECTION_STATUS_CALLBACK_INFO; typedef struct METHOD_CALLBACK_INFO_TAG { STRING_HANDLE method_name; BUFFER_HANDLE payload; METHOD_HANDLE method_id; } METHOD_CALLBACK_INFO; typedef struct INPUTMESSAGE_CALLBACK_INFO_TAG { IOTHUB_CLIENT_MESSAGE_CALLBACK_ASYNC eventHandlerCallback; IOTHUB_MESSAGE_HANDLE message_handle; } INPUTMESSAGE_CALLBACK_INFO; typedef struct USER_CALLBACK_INFO_TAG { USER_CALLBACK_TYPE type; void* userContextCallback; union IOTHUB_CALLBACK { DEVICE_TWIN_CALLBACK_INFO dev_twin_cb_info; EVENT_CONFIRM_CALLBACK_INFO event_confirm_cb_info; REPORTED_STATE_CALLBACK_INFO reported_state_cb_info; CONNECTION_STATUS_CALLBACK_INFO connection_status_cb_info; METHOD_CALLBACK_INFO method_cb_info; IOTHUB_MESSAGE_HANDLE message_handle; INPUTMESSAGE_CALLBACK_INFO inputmessage_cb_info; } iothub_callback; } USER_CALLBACK_INFO; typedef struct IOTHUB_QUEUE_CONTEXT_TAG { IOTHUB_CLIENT_CORE_INSTANCE* iotHubClientHandle; void* userContextCallback; union IOTHUB_CALLBACK_FUNCTION { IOTHUB_CLIENT_EVENT_CONFIRMATION_CALLBACK eventConfirmationCallback; IOTHUB_CLIENT_REPORTED_STATE_CALLBACK reportedStateCallback; } callbackFunction; } IOTHUB_QUEUE_CONTEXT; typedef struct IOTHUB_QUEUE_CONSOLIDATED_CONTEXT_TAG { IOTHUB_CLIENT_CORE_INSTANCE* iotHubClientHandle; union USER_CALLBACK_TAG { IOTHUB_CLIENT_DEVICE_TWIN_CALLBACK getTwin; } userCallback; void* userContext; } IOTHUB_QUEUE_CONSOLIDATED_CONTEXT; typedef struct IOTHUB_INPUTMESSAGE_CALLBACK_CONTEXT_TAG { IOTHUB_CLIENT_CORE_HANDLE iotHubClientHandle; IOTHUB_CLIENT_MESSAGE_CALLBACK_ASYNC eventHandlerCallback; void* userContextCallback; } IOTHUB_INPUTMESSAGE_CALLBACK_CONTEXT; /*used by unittests only*/ const size_t IoTHubClientCore_ThreadTerminationOffset = offsetof(IOTHUB_CLIENT_CORE_INSTANCE, StopThread); typedef enum CREATE_HUB_INSTANCE_TYPE_TAG { CREATE_HUB_INSTANCE_FROM_CONNECTION_STRING, CREATE_HUB_INSTANCE_FROM_EDGE_ENVIRONMENT, CREATE_HUB_INSTANCE_FROM_TRANSPORT, CREATE_HUB_INSTANCE_FROM_CLIENT_CONFIG, CREATE_HUB_INSTANCE_FROM_DEVICE_AUTH } CREATE_HUB_INSTANCE_TYPE; static void freeHttpWorkerThreadInfo(HTTPWORKER_THREAD_INFO* threadInfo) { Lock_Deinit(threadInfo->lockGarbage); if (threadInfo->workerThreadType == HTTPWORKER_THREAD_UPLOAD_TO_BLOB) { free(threadInfo->uploadBlobSavedData.source); free(threadInfo->destinationFileName); } else if (threadInfo->workerThreadType == HTTPWORKER_THREAD_INVOKE_METHOD) { free((char*)threadInfo->invokeMethodSavedData.deviceId); free((char*)threadInfo->invokeMethodSavedData.moduleId); free((char*)threadInfo->invokeMethodSavedData.methodName); free((char*)threadInfo->invokeMethodSavedData.methodPayload); } free(threadInfo); } /*this function is called from _Destroy and from ScheduleWork_Thread to join finished blobUpload threads and free that memory*/ static void garbageCollectorImpl(IOTHUB_CLIENT_CORE_INSTANCE* iotHubClientInstance) { /*see if any savedData structures can be disposed of*/ LIST_ITEM_HANDLE item = singlylinkedlist_get_head_item(iotHubClientInstance->httpWorkerThreadInfoList); while (item != NULL) { HTTPWORKER_THREAD_INFO* threadInfo = (HTTPWORKER_THREAD_INFO*)singlylinkedlist_item_get_value(item); LIST_ITEM_HANDLE old_item = item; item = singlylinkedlist_get_next_item(item); if (threadInfo == NULL || Lock(threadInfo->lockGarbage) != LOCK_OK) { LogError("unable to Lock"); } else { if (threadInfo->canBeGarbageCollected == 1) { int notUsed; if (ThreadAPI_Join(threadInfo->threadHandle, ¬Used) != THREADAPI_OK) { LogError("unable to ThreadAPI_Join"); } (void)singlylinkedlist_remove(iotHubClientInstance->httpWorkerThreadInfoList, old_item); if (Unlock(threadInfo->lockGarbage) != LOCK_OK) { LogError("unable to unlock after locking"); } freeHttpWorkerThreadInfo(threadInfo); } else { if (Unlock(threadInfo->lockGarbage) != LOCK_OK) { LogError("unable to unlock after locking"); } } } } } static bool iothub_ll_message_callback(IOTHUB_MESSAGE_HANDLE messageHandle, void* userContextCallback) { bool result; IOTHUB_QUEUE_CONTEXT* queue_context = (IOTHUB_QUEUE_CONTEXT*)userContextCallback; if (queue_context == NULL) { LogError("invalid parameter userContextCallback(NULL)"); result = false; } else { USER_CALLBACK_INFO queue_cb_info; queue_cb_info.type = CALLBACK_TYPE_MESSAGE; queue_cb_info.userContextCallback = queue_context->userContextCallback; queue_cb_info.iothub_callback.message_handle = messageHandle; if (VECTOR_push_back(queue_context->iotHubClientHandle->saved_user_callback_list, &queue_cb_info, 1) == 0) { result = true; } else { LogError("message callback vector push failed."); result = false; } } return result; } static bool iothub_ll_inputmessage_callback(IOTHUB_MESSAGE_HANDLE message_handle, void* userContextCallback) { bool result; IOTHUB_INPUTMESSAGE_CALLBACK_CONTEXT *inputMessageCallbackContext = (IOTHUB_INPUTMESSAGE_CALLBACK_CONTEXT *)userContextCallback; if (inputMessageCallbackContext == NULL) { LogError("invalid parameter userContextCallback(NULL)"); result = false; } else { USER_CALLBACK_INFO queue_cb_info; queue_cb_info.type = CALLBACK_TYPE_INPUTMESSAGE; queue_cb_info.userContextCallback = inputMessageCallbackContext->userContextCallback; queue_cb_info.iothub_callback.inputmessage_cb_info.eventHandlerCallback = inputMessageCallbackContext->eventHandlerCallback; queue_cb_info.iothub_callback.inputmessage_cb_info.message_handle = message_handle; if (VECTOR_push_back(inputMessageCallbackContext->iotHubClientHandle->saved_user_callback_list, &queue_cb_info, 1) == 0) { result = true; } else { LogError("message callback vector push failed."); result = false; } } return result; } static int make_method_calback_queue_context(USER_CALLBACK_INFO* queue_cb_info, const char* method_name, const unsigned char* payload, size_t size, METHOD_HANDLE method_id, IOTHUB_QUEUE_CONTEXT* queue_context) { int result; queue_cb_info->userContextCallback = queue_context->userContextCallback; queue_cb_info->iothub_callback.method_cb_info.method_id = method_id; if ((queue_cb_info->iothub_callback.method_cb_info.method_name = STRING_construct(method_name)) == NULL) { LogError("STRING_construct failed"); result = MU_FAILURE; } else { if ((queue_cb_info->iothub_callback.method_cb_info.payload = BUFFER_create(payload, size)) == NULL) { STRING_delete(queue_cb_info->iothub_callback.method_cb_info.method_name); LogError("BUFFER_create failed"); result = MU_FAILURE; } else { if (VECTOR_push_back(queue_context->iotHubClientHandle->saved_user_callback_list, queue_cb_info, 1) == 0) { result = 0; } else { STRING_delete(queue_cb_info->iothub_callback.method_cb_info.method_name); BUFFER_delete(queue_cb_info->iothub_callback.method_cb_info.payload); LogError("VECTOR_push_back failed"); result = MU_FAILURE; } } } return result; } static int iothub_ll_device_method_callback(const char* method_name, const unsigned char* payload, size_t size, METHOD_HANDLE method_id, void* userContextCallback) { int result; if (userContextCallback == NULL) { LogError("invalid parameter userContextCallback(NULL)"); result = MU_FAILURE; } else { IOTHUB_QUEUE_CONTEXT* queue_context = (IOTHUB_QUEUE_CONTEXT*)userContextCallback; USER_CALLBACK_INFO queue_cb_info; queue_cb_info.type = CALLBACK_TYPE_DEVICE_METHOD; // A NULL payload was sent from the service. Use empty JSON to signal to the user no payload. if (size == 0) { payload = (const unsigned char*) CLIENT_CORE_METHOD_EMPTY_PAYLOAD; size = sizeof(CLIENT_CORE_METHOD_EMPTY_PAYLOAD) - 1; } result = make_method_calback_queue_context(&queue_cb_info, method_name, payload, size, method_id, queue_context); if (result != 0) { LogError("construction of method calback queue context failed"); result = MU_FAILURE; } } return result; } static int iothub_ll_inbound_device_method_callback(const char* method_name, const unsigned char* payload, size_t size, METHOD_HANDLE method_id, void* userContextCallback) { int result; if (userContextCallback == NULL) { LogError("invalid parameter userContextCallback(NULL)"); result = MU_FAILURE; } else { IOTHUB_QUEUE_CONTEXT* queue_context = (IOTHUB_QUEUE_CONTEXT*)userContextCallback; USER_CALLBACK_INFO queue_cb_info; queue_cb_info.type = CALLBACK_TYPE_INBOUND_DEVICE_METHOD; result = make_method_calback_queue_context(&queue_cb_info, method_name, payload, size, method_id, queue_context); if (result != 0) { LogError("construction of method calback queue context failed"); result = MU_FAILURE; } } return result; } // iothub_ll_command_callback is invoked as the callback by the _LL_ layer that the convenience layer interfaces with. // We cannot directly call the application's callback function directly (because we have a lock held), so we queue up // the item to be processed later in dispatch_user_callbacks. static int iothub_ll_command_callback(const char* method_name, const unsigned char* payload, size_t size, METHOD_HANDLE method_id, void* userContextCallback) { int result; if (userContextCallback == NULL) { LogError("invalid parameter userContextCallback(NULL)"); result = MU_FAILURE; } else { IOTHUB_QUEUE_CONTEXT* queue_context = (IOTHUB_QUEUE_CONTEXT*)userContextCallback; USER_CALLBACK_INFO queue_cb_info; queue_cb_info.type = CALLBACK_TYPE_COMMAND; result = make_method_calback_queue_context(&queue_cb_info, method_name, payload, size, method_id, queue_context); if (result != 0) { LogError("construction of method calback queue context failed"); result = MU_FAILURE; } } return result; } static void iothub_ll_connection_status_callback(IOTHUB_CLIENT_CONNECTION_STATUS result, IOTHUB_CLIENT_CONNECTION_STATUS_REASON reason, void* userContextCallback) { IOTHUB_QUEUE_CONTEXT* queue_context = (IOTHUB_QUEUE_CONTEXT*)userContextCallback; if (queue_context != NULL) { USER_CALLBACK_INFO queue_cb_info; queue_cb_info.type = CALLBACK_TYPE_CONNECTION_STATUS; queue_cb_info.userContextCallback = queue_context->userContextCallback; queue_cb_info.iothub_callback.connection_status_cb_info.status_reason = reason; queue_cb_info.iothub_callback.connection_status_cb_info.connection_status = result; if (VECTOR_push_back(queue_context->iotHubClientHandle->saved_user_callback_list, &queue_cb_info, 1) != 0) { LogError("connection status callback vector push failed."); } } } static void iothub_ll_event_confirm_callback(IOTHUB_CLIENT_CONFIRMATION_RESULT result, void* userContextCallback) { IOTHUB_QUEUE_CONTEXT* queue_context = (IOTHUB_QUEUE_CONTEXT*)userContextCallback; if (queue_context != NULL) { USER_CALLBACK_INFO queue_cb_info; queue_cb_info.type = CALLBACK_TYPE_EVENT_CONFIRM; queue_cb_info.userContextCallback = queue_context->userContextCallback; queue_cb_info.iothub_callback.event_confirm_cb_info.confirm_result = result; queue_cb_info.iothub_callback.event_confirm_cb_info.eventConfirmationCallback = queue_context->callbackFunction.eventConfirmationCallback; if (VECTOR_push_back(queue_context->iotHubClientHandle->saved_user_callback_list, &queue_cb_info, 1) != 0) { LogError("event confirm callback vector push failed."); } free(queue_context); } } static void iothub_ll_reported_state_callback(int status_code, void* userContextCallback) { IOTHUB_QUEUE_CONTEXT* queue_context = (IOTHUB_QUEUE_CONTEXT*)userContextCallback; if (queue_context != NULL) { USER_CALLBACK_INFO queue_cb_info; queue_cb_info.type = CALLBACK_TYPE_REPORTED_STATE; queue_cb_info.userContextCallback = queue_context->userContextCallback; queue_cb_info.iothub_callback.reported_state_cb_info.status_code = status_code; queue_cb_info.iothub_callback.reported_state_cb_info.reportedStateCallback = queue_context->callbackFunction.reportedStateCallback; if (VECTOR_push_back(queue_context->iotHubClientHandle->saved_user_callback_list, &queue_cb_info, 1) != 0) { LogError("reported state callback vector push failed."); } free(queue_context); } } static void iothub_ll_device_twin_callback(DEVICE_TWIN_UPDATE_STATE update_state, const unsigned char* payLoad, size_t size, void* userContextCallback) { IOTHUB_QUEUE_CONTEXT* queue_context = (IOTHUB_QUEUE_CONTEXT*)userContextCallback; if (queue_context != NULL) { int push_to_vector; USER_CALLBACK_INFO queue_cb_info; queue_cb_info.type = CALLBACK_TYPE_DEVICE_TWIN; queue_cb_info.userContextCallback = queue_context->userContextCallback; queue_cb_info.iothub_callback.dev_twin_cb_info.update_state = update_state; queue_cb_info.iothub_callback.dev_twin_cb_info.userCallback = NULL; queue_cb_info.iothub_callback.dev_twin_cb_info.userContext = NULL; if (payLoad == NULL) { queue_cb_info.iothub_callback.dev_twin_cb_info.payLoad = NULL; queue_cb_info.iothub_callback.dev_twin_cb_info.size = 0; push_to_vector = 0; } else { queue_cb_info.iothub_callback.dev_twin_cb_info.payLoad = (unsigned char*)malloc(size); if (queue_cb_info.iothub_callback.dev_twin_cb_info.payLoad == NULL) { LogError("failure allocating payload in device twin callback."); queue_cb_info.iothub_callback.dev_twin_cb_info.size = 0; push_to_vector = MU_FAILURE; } else { (void)memcpy(queue_cb_info.iothub_callback.dev_twin_cb_info.payLoad, payLoad, size); queue_cb_info.iothub_callback.dev_twin_cb_info.size = size; push_to_vector = 0; } } if (push_to_vector == 0) { if (VECTOR_push_back(queue_context->iotHubClientHandle->saved_user_callback_list, &queue_cb_info, 1) != 0) { if (queue_cb_info.iothub_callback.dev_twin_cb_info.payLoad != NULL) { free(queue_cb_info.iothub_callback.dev_twin_cb_info.payLoad); } LogError("device twin callback userContextCallback vector push failed."); } } } else { LogError("device twin callback userContextCallback NULL"); } } static void iothub_ll_get_device_twin_async_callback(DEVICE_TWIN_UPDATE_STATE update_state, const unsigned char* payLoad, size_t size, void* userContextCallback) { IOTHUB_QUEUE_CONSOLIDATED_CONTEXT* queue_context = (IOTHUB_QUEUE_CONSOLIDATED_CONTEXT*)userContextCallback; if (queue_context != NULL) { USER_CALLBACK_INFO queue_cb_info; queue_cb_info.type = CALLBACK_TYPE_DEVICE_TWIN; queue_cb_info.userContextCallback = queue_context->userContext; queue_cb_info.iothub_callback.dev_twin_cb_info.update_state = update_state; queue_cb_info.iothub_callback.dev_twin_cb_info.userCallback = queue_context->userCallback.getTwin; queue_cb_info.iothub_callback.dev_twin_cb_info.userContext = queue_context->userContext; if (payLoad == NULL) { queue_cb_info.iothub_callback.dev_twin_cb_info.payLoad = NULL; queue_cb_info.iothub_callback.dev_twin_cb_info.size = 0; } else { queue_cb_info.iothub_callback.dev_twin_cb_info.payLoad = (unsigned char*)malloc(size); if (queue_cb_info.iothub_callback.dev_twin_cb_info.payLoad == NULL) { LogError("Failure allocating payload in get device twin callback."); queue_cb_info.iothub_callback.dev_twin_cb_info.size = 0; } else { (void)memcpy(queue_cb_info.iothub_callback.dev_twin_cb_info.payLoad, payLoad, size); queue_cb_info.iothub_callback.dev_twin_cb_info.size = size; } } if (VECTOR_push_back(queue_context->iotHubClientHandle->saved_user_callback_list, &queue_cb_info, 1) != 0) { LogError("device twin callback userContextCallback vector push failed."); if (queue_cb_info.iothub_callback.dev_twin_cb_info.payLoad != NULL) { free(queue_cb_info.iothub_callback.dev_twin_cb_info.payLoad); } } free(queue_context); } else { LogError("Get device twin callback userContextCallback NULL"); } } static void invoke_application_command_callback(IOTHUB_CLIENT_CORE_HANDLE method_user_context_handle, IOTHUB_CLIENT_COMMAND_CALLBACK_ASYNC command_callback, USER_CALLBACK_INFO* queued_cb) { const char* method_name = STRING_c_str(queued_cb->iothub_callback.method_cb_info.method_name); const unsigned char* payload = BUFFER_u_char(queued_cb->iothub_callback.method_cb_info.payload); size_t payload_len = BUFFER_length(queued_cb->iothub_callback.method_cb_info.payload); const char* command_name = NULL; char* component_name = NULL; // Parse the raw method_name into its constituent component_name and command_name parts. if (IoTHubClientCore_LL_ParseMethodToCommand(method_name, &component_name, &command_name) != IOTHUB_CLIENT_OK) { LogError("Cannot parse command/component name"); } else { // Invoke the application's callback. IOTHUB_CLIENT_COMMAND_REQUEST commandRequest; IOTHUB_CLIENT_COMMAND_RESPONSE commandResponse; commandRequest.structVersion = IOTHUB_CLIENT_COMMAND_REQUEST_STRUCT_VERSION_1; commandRequest.componentName = component_name; commandRequest.commandName = command_name; commandRequest.payload = payload; commandRequest.payloadLength = payload_len; memset(&commandResponse, 0, sizeof(commandResponse)); commandResponse.structVersion = IOTHUB_CLIENT_COMMAND_RESPONSE_STRUCT_VERSION_1; // Set statusCode of response to a default value so that if application has a bug and doesn't set it, we still return // something meaningful to IoT Hub. commandResponse.statusCode = DEFAULT_COMMAND_RESPONSE_STATUS_CODE; command_callback(&commandRequest, &commandResponse, queued_cb->userContextCallback); if ((commandResponse.payload != NULL) && (commandResponse.payloadLength > 0)) { IOTHUB_CLIENT_RESULT result = IoTHubClientCore_DeviceMethodResponse(method_user_context_handle, queued_cb->iothub_callback.method_cb_info.method_id, commandResponse.payload, commandResponse.payloadLength, commandResponse.statusCode); if (result != IOTHUB_CLIENT_OK) { LogError("IoTHubClientCore_LL_DeviceMethodResponse failed"); } } free(commandResponse.payload); } free(component_name); BUFFER_delete(queued_cb->iothub_callback.method_cb_info.payload); STRING_delete(queued_cb->iothub_callback.method_cb_info.method_name); } static void dispatch_user_callbacks(IOTHUB_CLIENT_CORE_INSTANCE* iotHubClientInstance, VECTOR_HANDLE call_backs) { size_t callbacks_length = VECTOR_size(call_backs); size_t index; IOTHUB_CLIENT_DEVICE_TWIN_CALLBACK desired_state_callback = NULL; IOTHUB_CLIENT_CONNECTION_STATUS_CALLBACK connection_status_callback = NULL; IOTHUB_CLIENT_DEVICE_METHOD_CALLBACK_ASYNC device_method_callback = NULL; IOTHUB_CLIENT_INBOUND_DEVICE_METHOD_CALLBACK inbound_device_method_callback = NULL; IOTHUB_CLIENT_COMMAND_CALLBACK_ASYNC command_callback = NULL; IOTHUB_CLIENT_MESSAGE_CALLBACK_ASYNC message_callback = NULL; IOTHUB_CLIENT_CORE_HANDLE message_user_context_handle = NULL; IOTHUB_CLIENT_CORE_HANDLE method_user_context_handle = NULL; // Make a local copy of these callbacks, as we don't run with a lock held and iotHubClientInstance may change mid-run. if (Lock(iotHubClientInstance->LockHandle) != LOCK_OK) { LogError("failed locking for dispatch_user_callbacks"); } else { desired_state_callback = iotHubClientInstance->desired_state_callback; connection_status_callback = iotHubClientInstance->connection_status_callback; device_method_callback = iotHubClientInstance->device_method_callback; inbound_device_method_callback = iotHubClientInstance->inbound_device_method_callback; command_callback = iotHubClientInstance->command_callback; message_callback = iotHubClientInstance->message_callback; if (iotHubClientInstance->method_user_context) { method_user_context_handle = iotHubClientInstance->method_user_context->iotHubClientHandle; } if (iotHubClientInstance->message_user_context) { message_user_context_handle = iotHubClientInstance->message_user_context->iotHubClientHandle; } (void)Unlock(iotHubClientInstance->LockHandle); } for (index = 0; index < callbacks_length; index++) { USER_CALLBACK_INFO* queued_cb = (USER_CALLBACK_INFO*)VECTOR_element(call_backs, index); if (queued_cb == NULL) { LogError("VECTOR_element at index %zd is NULL.", index); } else { switch (queued_cb->type) { case CALLBACK_TYPE_DEVICE_TWIN: { // Callback if for GetTwinAsync if (queued_cb->iothub_callback.dev_twin_cb_info.userCallback) { queued_cb->iothub_callback.dev_twin_cb_info.userCallback( queued_cb->iothub_callback.dev_twin_cb_info.update_state, queued_cb->iothub_callback.dev_twin_cb_info.payLoad, queued_cb->iothub_callback.dev_twin_cb_info.size, queued_cb->iothub_callback.dev_twin_cb_info.userContext ); } // Callback if for Desired properties. else if (desired_state_callback) { desired_state_callback(queued_cb->iothub_callback.dev_twin_cb_info.update_state, queued_cb->iothub_callback.dev_twin_cb_info.payLoad, queued_cb->iothub_callback.dev_twin_cb_info.size, queued_cb->userContextCallback); } if (queued_cb->iothub_callback.dev_twin_cb_info.payLoad) { free(queued_cb->iothub_callback.dev_twin_cb_info.payLoad); } break; } case CALLBACK_TYPE_EVENT_CONFIRM: if (queued_cb->iothub_callback.event_confirm_cb_info.eventConfirmationCallback) { queued_cb->iothub_callback.event_confirm_cb_info.eventConfirmationCallback(queued_cb->iothub_callback.event_confirm_cb_info.confirm_result, queued_cb->userContextCallback); } break; case CALLBACK_TYPE_REPORTED_STATE: if (queued_cb->iothub_callback.reported_state_cb_info.reportedStateCallback) { queued_cb->iothub_callback.reported_state_cb_info.reportedStateCallback(queued_cb->iothub_callback.reported_state_cb_info.status_code, queued_cb->userContextCallback); } break; case CALLBACK_TYPE_CONNECTION_STATUS: if (connection_status_callback) { connection_status_callback(queued_cb->iothub_callback.connection_status_cb_info.connection_status, queued_cb->iothub_callback.connection_status_cb_info.status_reason, queued_cb->userContextCallback); } break; case CALLBACK_TYPE_DEVICE_METHOD: if (device_method_callback) { const char* method_name = STRING_c_str(queued_cb->iothub_callback.method_cb_info.method_name); const unsigned char* payload = BUFFER_u_char(queued_cb->iothub_callback.method_cb_info.payload); size_t payload_len = BUFFER_length(queued_cb->iothub_callback.method_cb_info.payload); unsigned char* payload_resp = NULL; size_t response_size = 0; int status = device_method_callback(method_name, payload, payload_len, &payload_resp, &response_size, queued_cb->userContextCallback); if (payload_resp && (response_size > 0)) { IOTHUB_CLIENT_RESULT result = IoTHubClientCore_DeviceMethodResponse(method_user_context_handle, queued_cb->iothub_callback.method_cb_info.method_id, (const unsigned char*)payload_resp, response_size, status); if (result != IOTHUB_CLIENT_OK) { LogError("IoTHubClientCore_LL_DeviceMethodResponse failed"); } } BUFFER_delete(queued_cb->iothub_callback.method_cb_info.payload); STRING_delete(queued_cb->iothub_callback.method_cb_info.method_name); if (payload_resp) { free(payload_resp); } } break; case CALLBACK_TYPE_COMMAND: if (command_callback) { invoke_application_command_callback(method_user_context_handle, command_callback, queued_cb); } break; case CALLBACK_TYPE_INBOUND_DEVICE_METHOD: if (inbound_device_method_callback) { const char* method_name = STRING_c_str(queued_cb->iothub_callback.method_cb_info.method_name); const unsigned char* payload = BUFFER_u_char(queued_cb->iothub_callback.method_cb_info.payload); size_t payload_len = BUFFER_length(queued_cb->iothub_callback.method_cb_info.payload); inbound_device_method_callback(method_name, payload, payload_len, queued_cb->iothub_callback.method_cb_info.method_id, queued_cb->userContextCallback); BUFFER_delete(queued_cb->iothub_callback.method_cb_info.payload); STRING_delete(queued_cb->iothub_callback.method_cb_info.method_name); } break; case CALLBACK_TYPE_MESSAGE: if (message_callback && message_user_context_handle) { IOTHUBMESSAGE_DISPOSITION_RESULT disposition = message_callback(queued_cb->iothub_callback.message_handle, queued_cb->userContextCallback); if (disposition != IOTHUBMESSAGE_ASYNC_ACK) { if (Lock(message_user_context_handle->LockHandle) == LOCK_OK) { IOTHUB_CLIENT_RESULT result = IoTHubClientCore_LL_SendMessageDisposition(message_user_context_handle->IoTHubClientLLHandle, queued_cb->iothub_callback.message_handle, disposition); (void)Unlock(message_user_context_handle->LockHandle); if (result != IOTHUB_CLIENT_OK) { LogError("IoTHubClientCore_LL_SendMessageDisposition failed"); } } else { LogError("Lock failed"); } } } break; case CALLBACK_TYPE_INPUTMESSAGE: { const INPUTMESSAGE_CALLBACK_INFO *inputmessage_cb_info = &queued_cb->iothub_callback.inputmessage_cb_info; IOTHUBMESSAGE_DISPOSITION_RESULT disposition = inputmessage_cb_info->eventHandlerCallback(inputmessage_cb_info->message_handle, queued_cb->userContextCallback); if (disposition != IOTHUBMESSAGE_ASYNC_ACK) { if (Lock(iotHubClientInstance->LockHandle) == LOCK_OK) { IOTHUB_CLIENT_RESULT result = IoTHubClientCore_LL_SendMessageDisposition(iotHubClientInstance->IoTHubClientLLHandle, inputmessage_cb_info->message_handle, disposition); (void)Unlock(iotHubClientInstance->LockHandle); if (result != IOTHUB_CLIENT_OK) { LogError("IoTHubClient_LL_SendMessageDisposition failed"); } } else { LogError("Lock failed"); } } } break; default: LogError("Invalid callback type '%s'", MU_ENUM_TO_STRING(USER_CALLBACK_TYPE, queued_cb->type)); break; } } } VECTOR_destroy(call_backs); } static void ScheduleWork_Thread_ForMultiplexing(void* iotHubClientHandle) { IOTHUB_CLIENT_CORE_INSTANCE* iotHubClientInstance = (IOTHUB_CLIENT_CORE_INSTANCE*)iotHubClientHandle; garbageCollectorImpl(iotHubClientInstance); if (Lock(iotHubClientInstance->LockHandle) == LOCK_OK) { VECTOR_HANDLE call_backs = VECTOR_move(iotHubClientInstance->saved_user_callback_list); (void)Unlock(iotHubClientInstance->LockHandle); if (call_backs == NULL) { LogError("Failed moving user callbacks"); } else { dispatch_user_callbacks(iotHubClientInstance, call_backs); } } else { LogError("failed locking for ScheduleWork_Thread_ForMultiplexing"); } } static int ScheduleWork_Thread(void* threadArgument) { IOTHUB_CLIENT_CORE_INSTANCE* iotHubClientInstance = (IOTHUB_CLIENT_CORE_INSTANCE*)threadArgument; unsigned int sleeptime_in_ms = DO_WORK_FREQ_DEFAULT; srand((unsigned int)get_time(NULL)); while (1) { if (Lock(iotHubClientInstance->LockHandle) == LOCK_OK) { if (iotHubClientInstance->StopThread) { (void)Unlock(iotHubClientInstance->LockHandle); break; /*gets out of the thread*/ } else { IoTHubClientCore_LL_DoWork(iotHubClientInstance->IoTHubClientLLHandle); garbageCollectorImpl(iotHubClientInstance); VECTOR_HANDLE call_backs = VECTOR_move(iotHubClientInstance->saved_user_callback_list); sleeptime_in_ms = (unsigned int)iotHubClientInstance->do_work_freq_ms; // Update the sleepval within the locked thread. (void)Unlock(iotHubClientInstance->LockHandle); if (call_backs == NULL) { LogError("VECTOR_move failed"); } else { dispatch_user_callbacks(iotHubClientInstance, call_backs); } } } else { /*no code, shall retry*/ } (void)ThreadAPI_Sleep(sleeptime_in_ms); } ThreadAPI_Exit(0); return 0; } static IOTHUB_CLIENT_RESULT StartWorkerThreadIfNeeded(IOTHUB_CLIENT_CORE_INSTANCE* iotHubClientInstance) { IOTHUB_CLIENT_RESULT result; if (iotHubClientInstance->TransportHandle == NULL) { if (iotHubClientInstance->ThreadHandle == NULL) { iotHubClientInstance->StopThread = 0; if (ThreadAPI_Create(&iotHubClientInstance->ThreadHandle, ScheduleWork_Thread, iotHubClientInstance) != THREADAPI_OK) { LogError("ThreadAPI_Create failed"); iotHubClientInstance->ThreadHandle = NULL; result = IOTHUB_CLIENT_ERROR; } else { result = IOTHUB_CLIENT_OK; } } else { result = IOTHUB_CLIENT_OK; } } else { result = IoTHubTransport_StartWorkerThread(iotHubClientInstance->TransportHandle, iotHubClientInstance, ScheduleWork_Thread_ForMultiplexing); } return result; } static IOTHUB_CLIENT_CORE_INSTANCE* create_iothub_instance(CREATE_HUB_INSTANCE_TYPE create_hub_instance_type, const IOTHUB_CLIENT_CONFIG* config, TRANSPORT_HANDLE transportHandle, const char* connectionString, IOTHUB_CLIENT_TRANSPORT_PROVIDER protocol, const char* iothub_uri, const char* device_id) { IOTHUB_CLIENT_CORE_INSTANCE* result = (IOTHUB_CLIENT_CORE_INSTANCE*)malloc(sizeof(IOTHUB_CLIENT_CORE_INSTANCE)); (void)create_hub_instance_type; if (result != NULL) { memset((void *)result, 0, sizeof(IOTHUB_CLIENT_CORE_INSTANCE)); result->do_work_freq_ms = DO_WORK_FREQ_DEFAULT; /* Default currentMessageTimeout to NULL until it is set by SetOption */ result->currentMessageTimeout = 0; if ((result->saved_user_callback_list = VECTOR_create(sizeof(USER_CALLBACK_INFO))) == NULL) { LogError("Failed creating VECTOR"); free(result); result = NULL; } else { if ((result->httpWorkerThreadInfoList = singlylinkedlist_create()) == NULL) { LogError("unable to singlylinkedlist_create"); VECTOR_destroy(result->saved_user_callback_list); free(result); result = NULL; } else { result->TransportHandle = transportHandle; result->created_with_transport_handle = 0; if (config != NULL) { if (transportHandle != NULL) { result->LockHandle = IoTHubTransport_GetLock(transportHandle); if (result->LockHandle == NULL) { LogError("unable to IoTHubTransport_GetLock"); result->IoTHubClientLLHandle = NULL; } else { IOTHUB_CLIENT_DEVICE_CONFIG deviceConfig; deviceConfig.deviceId = config->deviceId; deviceConfig.deviceKey = config->deviceKey; deviceConfig.protocol = config->protocol; deviceConfig.deviceSasToken = config->deviceSasToken; deviceConfig.transportHandle = IoTHubTransport_GetLLTransport(transportHandle); if (deviceConfig.transportHandle == NULL) { LogError("unable to IoTHubTransport_GetLLTransport"); result->IoTHubClientLLHandle = NULL; } else { if (Lock(result->LockHandle) != LOCK_OK) { LogError("unable to Lock"); result->IoTHubClientLLHandle = NULL; } else { result->IoTHubClientLLHandle = IoTHubClientCore_LL_CreateWithTransport(&deviceConfig); result->created_with_transport_handle = 1; if (Unlock(result->LockHandle) != LOCK_OK) { LogError("unable to Unlock"); result->IoTHubClientLLHandle = NULL; } } } } } else { result->LockHandle = Lock_Init(); if (result->LockHandle == NULL) { LogError("Failure creating Lock object"); result->IoTHubClientLLHandle = NULL; } else { result->IoTHubClientLLHandle = IoTHubClientCore_LL_Create(config); } } } else if (iothub_uri != NULL) { #ifdef USE_PROV_MODULE result->LockHandle = Lock_Init(); if (result->LockHandle == NULL) { LogError("Failure creating Lock object"); result->IoTHubClientLLHandle = NULL; } else { result->IoTHubClientLLHandle = IoTHubClientCore_LL_CreateFromDeviceAuth(iothub_uri, device_id, protocol); } #else (void)device_id; LogError("Provisioning is not enabled for the build"); result->IoTHubClientLLHandle = NULL; #endif } #ifdef USE_EDGE_MODULES else if (create_hub_instance_type == CREATE_HUB_INSTANCE_FROM_EDGE_ENVIRONMENT) { result->LockHandle = Lock_Init(); if (result->LockHandle == NULL) { LogError("Failure creating Lock object"); result->IoTHubClientLLHandle = NULL; } else { result->IoTHubClientLLHandle = IoTHubClientCore_LL_CreateFromEnvironment(protocol); } } #endif else { result->LockHandle = Lock_Init(); if (result->LockHandle == NULL) { LogError("Failure creating Lock object"); result->IoTHubClientLLHandle = NULL; } else { result->IoTHubClientLLHandle = IoTHubClientCore_LL_CreateFromConnectionString(connectionString, protocol); } } if (result->IoTHubClientLLHandle == NULL) { if ((transportHandle == NULL) && (result->LockHandle != NULL)) { Lock_Deinit(result->LockHandle); } singlylinkedlist_destroy(result->httpWorkerThreadInfoList); LogError("Failure creating iothub handle"); VECTOR_destroy(result->saved_user_callback_list); free(result); result = NULL; } else { result->ThreadHandle = NULL; result->desired_state_callback = NULL; result->devicetwin_user_context = NULL; result->connection_status_callback = NULL; result->connection_status_user_context = NULL; result->message_callback = NULL; result->message_user_context = NULL; result->method_user_context = NULL; } } } } return result; } IOTHUB_CLIENT_CORE_HANDLE IoTHubClientCore_CreateFromConnectionString(const char* connectionString, IOTHUB_CLIENT_TRANSPORT_PROVIDER protocol) { IOTHUB_CLIENT_CORE_INSTANCE* result; if (connectionString == NULL) { LogError("Input parameter is NULL: connectionString"); result = NULL; } else if (protocol == NULL) { LogError("Input parameter is NULL: protocol"); result = NULL; } else { result = create_iothub_instance(CREATE_HUB_INSTANCE_FROM_CONNECTION_STRING, NULL, NULL, connectionString, protocol, NULL, NULL); } return result; } IOTHUB_CLIENT_CORE_HANDLE IoTHubClientCore_Create(const IOTHUB_CLIENT_CONFIG* config) { IOTHUB_CLIENT_CORE_INSTANCE* result; if (config == NULL) { LogError("Input parameter is NULL: IOTHUB_CLIENT_CONFIG"); result = NULL; } else { result = create_iothub_instance(CREATE_HUB_INSTANCE_FROM_CLIENT_CONFIG, config, NULL, NULL, NULL, NULL, NULL); } return result; } IOTHUB_CLIENT_CORE_HANDLE IoTHubClientCore_CreateWithTransport(TRANSPORT_HANDLE transportHandle, const IOTHUB_CLIENT_CONFIG* config) { IOTHUB_CLIENT_CORE_INSTANCE* result; if (transportHandle == NULL || config == NULL) { LogError("invalid parameter TRANSPORT_HANDLE transportHandle=%p, const IOTHUB_CLIENT_CONFIG* config=%p", transportHandle, config); result = NULL; } else { result = create_iothub_instance(CREATE_HUB_INSTANCE_FROM_TRANSPORT, config, transportHandle, NULL, NULL, NULL, NULL); } return result; } IOTHUB_CLIENT_CORE_HANDLE IoTHubClientCore_CreateFromDeviceAuth(const char* iothub_uri, const char* device_id, IOTHUB_CLIENT_TRANSPORT_PROVIDER protocol) { IOTHUB_CLIENT_CORE_INSTANCE* result; if (iothub_uri == NULL) { LogError("Input parameter is NULL: iothub_uri"); result = NULL; } else if (device_id == NULL) { LogError("Input parameter is NULL: device_id"); result = NULL; } else if (protocol == NULL) { LogError("Input parameter is NULL: protocol"); result = NULL; } else { result = create_iothub_instance(CREATE_HUB_INSTANCE_FROM_DEVICE_AUTH, NULL, NULL, NULL, protocol, iothub_uri, device_id); } return result; } #ifdef USE_EDGE_MODULES IOTHUB_CLIENT_CORE_HANDLE IoTHubClientCore_CreateFromEnvironment(IOTHUB_CLIENT_TRANSPORT_PROVIDER protocol) { return create_iothub_instance(CREATE_HUB_INSTANCE_FROM_EDGE_ENVIRONMENT, NULL, NULL, NULL, protocol, NULL, NULL); } #endif void IoTHubClientCore_Destroy(IOTHUB_CLIENT_CORE_HANDLE iotHubClientHandle) { if (iotHubClientHandle != NULL) { bool joinClientThread; bool joinTransportThread; size_t vector_size; IOTHUB_CLIENT_CORE_INSTANCE* iotHubClientInstance = (IOTHUB_CLIENT_CORE_INSTANCE*)iotHubClientHandle; if (iotHubClientInstance->TransportHandle != NULL) { joinTransportThread = IoTHubTransport_SignalEndWorkerThread(iotHubClientInstance->TransportHandle, iotHubClientHandle); } else { joinTransportThread = false; } if (Lock(iotHubClientInstance->LockHandle) != LOCK_OK) { LogError("unable to Lock - - will still proceed to try to end the thread without locking"); } if (iotHubClientInstance->ThreadHandle != NULL) { iotHubClientInstance->StopThread = 1; joinClientThread = true; } else { joinClientThread = false; } if (Unlock(iotHubClientInstance->LockHandle) != LOCK_OK) { LogError("unable to Unlock"); } if (joinClientThread == true) { int res; if (ThreadAPI_Join(iotHubClientInstance->ThreadHandle, &res) != THREADAPI_OK) { LogError("ThreadAPI_Join failed"); } } if (joinTransportThread == true) { IoTHubTransport_JoinWorkerThread(iotHubClientInstance->TransportHandle, iotHubClientHandle); } if (Lock(iotHubClientInstance->LockHandle) != LOCK_OK) { LogError("unable to Lock - - will still proceed to try to end the thread without locking"); } /*wait for all uploading threads to finish*/ while (singlylinkedlist_get_head_item(iotHubClientInstance->httpWorkerThreadInfoList) != NULL) { // Sleep between runs of the garbage collector in order to give the httpWorker threads time to execute. // Otherwise we end up in a spin loop here. unsigned int sleeptime_in_ms = (unsigned int)iotHubClientInstance->do_work_freq_ms; Unlock(iotHubClientInstance->LockHandle); ThreadAPI_Sleep(sleeptime_in_ms); if (Lock(iotHubClientInstance->LockHandle) != LOCK_OK) { LogError("unable to Lock - - will still proceed to try to end the thread without locking"); } garbageCollectorImpl(iotHubClientInstance); } if (iotHubClientInstance->httpWorkerThreadInfoList != NULL) { singlylinkedlist_destroy(iotHubClientInstance->httpWorkerThreadInfoList); } IoTHubClientCore_LL_Destroy(iotHubClientInstance->IoTHubClientLLHandle); if (Unlock(iotHubClientInstance->LockHandle) != LOCK_OK) { LogError("unable to Unlock"); } vector_size = VECTOR_size(iotHubClientInstance->saved_user_callback_list); size_t index = 0; for (index = 0; index < vector_size; index++) { USER_CALLBACK_INFO* queue_cb_info = (USER_CALLBACK_INFO*)VECTOR_element(iotHubClientInstance->saved_user_callback_list, index); if (queue_cb_info != NULL) { if ((queue_cb_info->type == CALLBACK_TYPE_DEVICE_METHOD) || (queue_cb_info->type == CALLBACK_TYPE_INBOUND_DEVICE_METHOD)) { STRING_delete(queue_cb_info->iothub_callback.method_cb_info.method_name); BUFFER_delete(queue_cb_info->iothub_callback.method_cb_info.payload); } else if (queue_cb_info->type == CALLBACK_TYPE_DEVICE_TWIN) { if (queue_cb_info->iothub_callback.dev_twin_cb_info.userCallback) { queue_cb_info->iothub_callback.dev_twin_cb_info.userCallback( queue_cb_info->iothub_callback.dev_twin_cb_info.update_state, queue_cb_info->iothub_callback.dev_twin_cb_info.payLoad, queue_cb_info->iothub_callback.dev_twin_cb_info.size, queue_cb_info->iothub_callback.dev_twin_cb_info.userContext ); } if (queue_cb_info->iothub_callback.dev_twin_cb_info.payLoad != NULL) { free(queue_cb_info->iothub_callback.dev_twin_cb_info.payLoad); } } else if (queue_cb_info->type == CALLBACK_TYPE_EVENT_CONFIRM) { if (queue_cb_info->iothub_callback.event_confirm_cb_info.eventConfirmationCallback) { queue_cb_info->iothub_callback.event_confirm_cb_info.eventConfirmationCallback(queue_cb_info->iothub_callback.event_confirm_cb_info.confirm_result, queue_cb_info->userContextCallback); } } else if (queue_cb_info->type == CALLBACK_TYPE_REPORTED_STATE) { if (queue_cb_info->iothub_callback.reported_state_cb_info.reportedStateCallback) { queue_cb_info->iothub_callback.reported_state_cb_info.reportedStateCallback(queue_cb_info->iothub_callback.reported_state_cb_info.status_code, queue_cb_info->userContextCallback); } } } } VECTOR_destroy(iotHubClientInstance->saved_user_callback_list); if (iotHubClientInstance->TransportHandle == NULL) { Lock_Deinit(iotHubClientInstance->LockHandle); } if (iotHubClientInstance->devicetwin_user_context != NULL) { free(iotHubClientInstance->devicetwin_user_context); } if (iotHubClientInstance->connection_status_user_context != NULL) { free(iotHubClientInstance->connection_status_user_context); } if (iotHubClientInstance->message_user_context != NULL) { free(iotHubClientInstance->message_user_context); } if (iotHubClientInstance->method_user_context != NULL) { free(iotHubClientInstance->method_user_context); } free(iotHubClientInstance); } } IOTHUB_CLIENT_RESULT IoTHubClientCore_SendEventAsync(IOTHUB_CLIENT_CORE_HANDLE iotHubClientHandle, IOTHUB_MESSAGE_HANDLE eventMessageHandle, IOTHUB_CLIENT_EVENT_CONFIRMATION_CALLBACK eventConfirmationCallback, void* userContextCallback) { IOTHUB_CLIENT_RESULT result; if (iotHubClientHandle == NULL) { result = IOTHUB_CLIENT_INVALID_ARG; LogError("NULL iothubClientHandle"); } else { IOTHUB_CLIENT_CORE_INSTANCE* iotHubClientInstance = (IOTHUB_CLIENT_CORE_INSTANCE*)iotHubClientHandle; if ((result = StartWorkerThreadIfNeeded(iotHubClientInstance)) != IOTHUB_CLIENT_OK) { result = IOTHUB_CLIENT_ERROR; LogError("Could not start worker thread"); } else { if (Lock(iotHubClientInstance->LockHandle) != LOCK_OK) { result = IOTHUB_CLIENT_ERROR; LogError("Could not acquire lock"); } else { if (iotHubClientInstance->created_with_transport_handle != 0 || eventConfirmationCallback == NULL) { result = IoTHubClientCore_LL_SendEventAsync(iotHubClientInstance->IoTHubClientLLHandle, eventMessageHandle, eventConfirmationCallback, userContextCallback); } else { IOTHUB_QUEUE_CONTEXT* queue_context = (IOTHUB_QUEUE_CONTEXT*)malloc(sizeof(IOTHUB_QUEUE_CONTEXT)); if (queue_context == NULL) { result = IOTHUB_CLIENT_ERROR; LogError("Failed allocating QUEUE_CONTEXT"); } else { queue_context->iotHubClientHandle = iotHubClientInstance; queue_context->userContextCallback = userContextCallback; queue_context->callbackFunction.eventConfirmationCallback = eventConfirmationCallback; result = IoTHubClientCore_LL_SendEventAsync(iotHubClientInstance->IoTHubClientLLHandle, eventMessageHandle, iothub_ll_event_confirm_callback, queue_context); if (result != IOTHUB_CLIENT_OK) { LogError("IoTHubClientCore_LL_SendEventAsync failed"); free(queue_context); } } } (void)Unlock(iotHubClientInstance->LockHandle); } } } return result; } IOTHUB_CLIENT_RESULT IoTHubClientCore_GetSendStatus(IOTHUB_CLIENT_CORE_HANDLE iotHubClientHandle, IOTHUB_CLIENT_STATUS *iotHubClientStatus) { IOTHUB_CLIENT_RESULT result; if (iotHubClientHandle == NULL) { result = IOTHUB_CLIENT_INVALID_ARG; LogError("NULL iothubClientHandle"); } else { IOTHUB_CLIENT_CORE_INSTANCE* iotHubClientInstance = (IOTHUB_CLIENT_CORE_INSTANCE*)iotHubClientHandle; if (Lock(iotHubClientInstance->LockHandle) != LOCK_OK) { result = IOTHUB_CLIENT_ERROR; LogError("Could not acquire lock"); } else { result = IoTHubClientCore_LL_GetSendStatus(iotHubClientInstance->IoTHubClientLLHandle, iotHubClientStatus); (void)Unlock(iotHubClientInstance->LockHandle); } } return result; } IOTHUB_CLIENT_RESULT IoTHubClientCore_SetMessageCallback(IOTHUB_CLIENT_CORE_HANDLE iotHubClientHandle, IOTHUB_CLIENT_MESSAGE_CALLBACK_ASYNC messageCallback, void* userContextCallback) { IOTHUB_CLIENT_RESULT result; if (iotHubClientHandle == NULL) { result = IOTHUB_CLIENT_INVALID_ARG; LogError("NULL iothubClientHandle"); } else { IOTHUB_CLIENT_CORE_INSTANCE* iotHubClientInstance = (IOTHUB_CLIENT_CORE_INSTANCE*)iotHubClientHandle; if ((result = StartWorkerThreadIfNeeded(iotHubClientInstance)) != IOTHUB_CLIENT_OK) { result = IOTHUB_CLIENT_ERROR; LogError("Could not start worker thread"); } else { if (Lock(iotHubClientInstance->LockHandle) != LOCK_OK) { result = IOTHUB_CLIENT_ERROR; LogError("Could not acquire lock"); } else { if (iotHubClientInstance->created_with_transport_handle == 0) { iotHubClientInstance->message_callback = messageCallback; } if (iotHubClientInstance->message_user_context != NULL) { free(iotHubClientInstance->message_user_context); iotHubClientInstance->message_user_context = NULL; } if (messageCallback == NULL) { result = IoTHubClientCore_LL_SetMessageCallback_Ex(iotHubClientInstance->IoTHubClientLLHandle, NULL, iotHubClientInstance->message_user_context); } else if (iotHubClientInstance->created_with_transport_handle != 0) { result = IoTHubClientCore_LL_SetMessageCallback(iotHubClientInstance->IoTHubClientLLHandle, messageCallback, userContextCallback); } else { iotHubClientInstance->message_user_context = (IOTHUB_QUEUE_CONTEXT*)malloc(sizeof(IOTHUB_QUEUE_CONTEXT)); if (iotHubClientInstance->message_user_context == NULL) { result = IOTHUB_CLIENT_ERROR; LogError("Failed allocating QUEUE_CONTEXT"); } else { iotHubClientInstance->message_user_context->iotHubClientHandle = iotHubClientHandle; iotHubClientInstance->message_user_context->userContextCallback = userContextCallback; result = IoTHubClientCore_LL_SetMessageCallback_Ex(iotHubClientInstance->IoTHubClientLLHandle, iothub_ll_message_callback, iotHubClientInstance->message_user_context); if (result != IOTHUB_CLIENT_OK) { LogError("IoTHubClientCore_LL_SetMessageCallback failed"); free(iotHubClientInstance->message_user_context); iotHubClientInstance->message_user_context = NULL; } } } (void)Unlock(iotHubClientInstance->LockHandle); } } } return result; } IOTHUB_CLIENT_RESULT IoTHubClientCore_SetConnectionStatusCallback(IOTHUB_CLIENT_CORE_HANDLE iotHubClientHandle, IOTHUB_CLIENT_CONNECTION_STATUS_CALLBACK connectionStatusCallback, void * userContextCallback) { IOTHUB_CLIENT_RESULT result; if (iotHubClientHandle == NULL) { result = IOTHUB_CLIENT_INVALID_ARG; LogError("NULL iothubClientHandle"); } else { IOTHUB_CLIENT_CORE_INSTANCE* iotHubClientInstance = (IOTHUB_CLIENT_CORE_INSTANCE*)iotHubClientHandle; if ((result = StartWorkerThreadIfNeeded(iotHubClientInstance)) != IOTHUB_CLIENT_OK) { result = IOTHUB_CLIENT_ERROR; LogError("Could not start worker thread"); } else { if (Lock(iotHubClientInstance->LockHandle) != LOCK_OK) { result = IOTHUB_CLIENT_ERROR; LogError("Could not acquire lock"); } else { if (iotHubClientInstance->created_with_transport_handle == 0) { iotHubClientInstance->connection_status_callback = connectionStatusCallback; } if (iotHubClientInstance->created_with_transport_handle != 0 || connectionStatusCallback == NULL) { result = IoTHubClientCore_LL_SetConnectionStatusCallback(iotHubClientInstance->IoTHubClientLLHandle, connectionStatusCallback, userContextCallback); } else { if (iotHubClientInstance->connection_status_user_context != NULL) { free(iotHubClientInstance->connection_status_user_context); } iotHubClientInstance->connection_status_user_context = (IOTHUB_QUEUE_CONTEXT*)malloc(sizeof(IOTHUB_QUEUE_CONTEXT)); if (iotHubClientInstance->connection_status_user_context == NULL) { result = IOTHUB_CLIENT_ERROR; LogError("Failed allocating QUEUE_CONTEXT"); } else { iotHubClientInstance->connection_status_user_context->iotHubClientHandle = iotHubClientInstance; iotHubClientInstance->connection_status_user_context->userContextCallback = userContextCallback; result = IoTHubClientCore_LL_SetConnectionStatusCallback(iotHubClientInstance->IoTHubClientLLHandle, iothub_ll_connection_status_callback, iotHubClientInstance->connection_status_user_context); if (result != IOTHUB_CLIENT_OK) { LogError("IoTHubClientCore_LL_SetConnectionStatusCallback failed"); free(iotHubClientInstance->connection_status_user_context); iotHubClientInstance->connection_status_user_context = NULL; } } } (void)Unlock(iotHubClientInstance->LockHandle); } } } return result; } IOTHUB_CLIENT_RESULT IoTHubClientCore_SetRetryPolicy(IOTHUB_CLIENT_CORE_HANDLE iotHubClientHandle, IOTHUB_CLIENT_RETRY_POLICY retryPolicy, size_t retryTimeoutLimitInSeconds) { IOTHUB_CLIENT_RESULT result; if (iotHubClientHandle == NULL) { result = IOTHUB_CLIENT_INVALID_ARG; LogError("NULL iothubClientHandle"); } else { IOTHUB_CLIENT_CORE_INSTANCE* iotHubClientInstance = (IOTHUB_CLIENT_CORE_INSTANCE*)iotHubClientHandle; if ((result = StartWorkerThreadIfNeeded(iotHubClientInstance)) != IOTHUB_CLIENT_OK) { result = IOTHUB_CLIENT_ERROR; LogError("Could not start worker thread"); } else { if (Lock(iotHubClientInstance->LockHandle) != LOCK_OK) { result = IOTHUB_CLIENT_ERROR; LogError("Could not acquire lock"); } else { result = IoTHubClientCore_LL_SetRetryPolicy(iotHubClientInstance->IoTHubClientLLHandle, retryPolicy, retryTimeoutLimitInSeconds); (void)Unlock(iotHubClientInstance->LockHandle); } } } return result; } IOTHUB_CLIENT_RESULT IoTHubClientCore_GetRetryPolicy(IOTHUB_CLIENT_CORE_HANDLE iotHubClientHandle, IOTHUB_CLIENT_RETRY_POLICY* retryPolicy, size_t* retryTimeoutLimitInSeconds) { IOTHUB_CLIENT_RESULT result; if (iotHubClientHandle == NULL) { result = IOTHUB_CLIENT_INVALID_ARG; LogError("NULL iothubClientHandle"); } else { IOTHUB_CLIENT_CORE_INSTANCE* iotHubClientInstance = (IOTHUB_CLIENT_CORE_INSTANCE*)iotHubClientHandle; if ((result = StartWorkerThreadIfNeeded(iotHubClientInstance)) != IOTHUB_CLIENT_OK) { result = IOTHUB_CLIENT_ERROR; LogError("Could not start worker thread"); } else { if (Lock(iotHubClientInstance->LockHandle) != LOCK_OK) { result = IOTHUB_CLIENT_ERROR; LogError("Could not acquire lock"); } else { result = IoTHubClientCore_LL_GetRetryPolicy(iotHubClientInstance->IoTHubClientLLHandle, retryPolicy, retryTimeoutLimitInSeconds); (void)Unlock(iotHubClientInstance->LockHandle); } } } return result; } IOTHUB_CLIENT_RESULT IoTHubClientCore_GetLastMessageReceiveTime(IOTHUB_CLIENT_CORE_HANDLE iotHubClientHandle, time_t* lastMessageReceiveTime) { IOTHUB_CLIENT_RESULT result; if (iotHubClientHandle == NULL) { result = IOTHUB_CLIENT_INVALID_ARG; LogError("NULL iothubClientHandle"); } else { IOTHUB_CLIENT_CORE_INSTANCE* iotHubClientInstance = (IOTHUB_CLIENT_CORE_INSTANCE*)iotHubClientHandle; if (Lock(iotHubClientInstance->LockHandle) != LOCK_OK) { result = IOTHUB_CLIENT_ERROR; LogError("Could not acquire lock"); } else { result = IoTHubClientCore_LL_GetLastMessageReceiveTime(iotHubClientInstance->IoTHubClientLLHandle, lastMessageReceiveTime); (void)Unlock(iotHubClientInstance->LockHandle); } } return result; } IOTHUB_CLIENT_RESULT IoTHubClientCore_SetOption(IOTHUB_CLIENT_CORE_HANDLE iotHubClientHandle, const char* optionName, const void* value) { IOTHUB_CLIENT_RESULT result; if ( (iotHubClientHandle == NULL) || (optionName == NULL) || (value == NULL) ) { result = IOTHUB_CLIENT_INVALID_ARG; LogError("invalid arg (NULL)"); } else { IOTHUB_CLIENT_CORE_INSTANCE* iotHubClientInstance = (IOTHUB_CLIENT_CORE_INSTANCE*)iotHubClientHandle; if (Lock(iotHubClientInstance->LockHandle) != LOCK_OK) { result = IOTHUB_CLIENT_ERROR; LogError("Could not acquire lock"); } else { if (strcmp(OPTION_DO_WORK_FREQUENCY_IN_MS, optionName) == 0) { if (0 < * (tickcounter_ms_t*)value && * (tickcounter_ms_t*)value <= DO_WORK_MAXIMUM_ALLOWED_FREQUENCY) { if ((!iotHubClientInstance->currentMessageTimeout) || ( * (tickcounter_ms_t *)value < iotHubClientInstance->currentMessageTimeout)) { iotHubClientInstance->do_work_freq_ms = * (tickcounter_ms_t *)value; result = IOTHUB_CLIENT_OK; } else { result = IOTHUB_CLIENT_INVALID_ARG; LogError("Invalid value: OPTION_DO_WORK_FREQUENCY_IN_MS cannot exceed that of OPTION_MESSAGE_TIMEOUT."); } } else { result = IOTHUB_CLIENT_INVALID_ARG; LogError("Invalid value: OPTION_DO_WORK_FREQUENCY_IN_MS cannot exceed %d ms. If you wish to reduce the frequency further, consider using the LL layer.", DO_WORK_MAXIMUM_ALLOWED_FREQUENCY); } } else if (strcmp(OPTION_MESSAGE_TIMEOUT, optionName) == 0) { iotHubClientInstance->currentMessageTimeout = * (tickcounter_ms_t *)value; if (iotHubClientInstance->do_work_freq_ms < iotHubClientInstance->currentMessageTimeout) { result = IoTHubClientCore_LL_SetOption(iotHubClientInstance->IoTHubClientLLHandle, optionName, value); if (result != IOTHUB_CLIENT_OK) { LogError("IoTHubClientCore_LL_SetOption failed"); } } else { result = IOTHUB_CLIENT_INVALID_ARG; LogError("invalid value: OPTION_MESSAGE_TIMEOUT cannot exceed the value of OPTION_DO_WORK_FREQUENCY_IN_MS "); } } else { result = IoTHubClientCore_LL_SetOption(iotHubClientInstance->IoTHubClientLLHandle, optionName, value); if (result != IOTHUB_CLIENT_OK) { LogError("IoTHubClientCore_LL_SetOption failed"); } } (void)Unlock(iotHubClientInstance->LockHandle); } } return result; } IOTHUB_CLIENT_RESULT IoTHubClientCore_SetDeviceTwinCallback(IOTHUB_CLIENT_CORE_HANDLE iotHubClientHandle, IOTHUB_CLIENT_DEVICE_TWIN_CALLBACK deviceTwinCallback, void* userContextCallback) { IOTHUB_CLIENT_RESULT result; if (iotHubClientHandle == NULL) { result = IOTHUB_CLIENT_INVALID_ARG; LogError("invalid arg (NULL)"); } else { IOTHUB_CLIENT_CORE_INSTANCE* iotHubClientInstance = (IOTHUB_CLIENT_CORE_INSTANCE*)iotHubClientHandle; if ((result = StartWorkerThreadIfNeeded(iotHubClientInstance)) != IOTHUB_CLIENT_OK) { result = IOTHUB_CLIENT_ERROR; LogError("Could not start worker thread"); } else { if (Lock(iotHubClientInstance->LockHandle) != LOCK_OK) { result = IOTHUB_CLIENT_ERROR; LogError("Could not acquire lock"); } else { if (iotHubClientInstance->created_with_transport_handle == 0) { iotHubClientInstance->desired_state_callback = deviceTwinCallback; } if (iotHubClientInstance->created_with_transport_handle != 0 || deviceTwinCallback == NULL) { result = IoTHubClientCore_LL_SetDeviceTwinCallback(iotHubClientInstance->IoTHubClientLLHandle, deviceTwinCallback, userContextCallback); } else { if (iotHubClientInstance->devicetwin_user_context != NULL) { free(iotHubClientInstance->devicetwin_user_context); } iotHubClientInstance->devicetwin_user_context = (IOTHUB_QUEUE_CONTEXT*)malloc(sizeof(IOTHUB_QUEUE_CONTEXT)); if (iotHubClientInstance->devicetwin_user_context == NULL) { result = IOTHUB_CLIENT_ERROR; LogError("Failed allocating QUEUE_CONTEXT"); } else { iotHubClientInstance->devicetwin_user_context->iotHubClientHandle = iotHubClientInstance; iotHubClientInstance->devicetwin_user_context->userContextCallback = userContextCallback; result = IoTHubClientCore_LL_SetDeviceTwinCallback(iotHubClientInstance->IoTHubClientLLHandle, iothub_ll_device_twin_callback, iotHubClientInstance->devicetwin_user_context); if (result != IOTHUB_CLIENT_OK) { LogError("IoTHubClientCore_LL_SetDeviceTwinCallback failed"); free(iotHubClientInstance->devicetwin_user_context); iotHubClientInstance->devicetwin_user_context = NULL; } } } (void)Unlock(iotHubClientInstance->LockHandle); } } } return result; } IOTHUB_CLIENT_RESULT IoTHubClientCore_SendReportedState(IOTHUB_CLIENT_CORE_HANDLE iotHubClientHandle, const unsigned char* reportedState, size_t size, IOTHUB_CLIENT_REPORTED_STATE_CALLBACK reportedStateCallback, void* userContextCallback) { IOTHUB_CLIENT_RESULT result; if (iotHubClientHandle == NULL) { result = IOTHUB_CLIENT_INVALID_ARG; LogError("invalid arg (NULL)"); } else { IOTHUB_CLIENT_CORE_INSTANCE* iotHubClientInstance = (IOTHUB_CLIENT_CORE_INSTANCE*)iotHubClientHandle; if ((result = StartWorkerThreadIfNeeded(iotHubClientInstance)) != IOTHUB_CLIENT_OK) { result = IOTHUB_CLIENT_ERROR; LogError("Could not start worker thread"); } else { if (Lock(iotHubClientInstance->LockHandle) != LOCK_OK) { result = IOTHUB_CLIENT_ERROR; LogError("Could not acquire lock"); } else { if (iotHubClientInstance->created_with_transport_handle != 0 || reportedStateCallback == NULL) { result = IoTHubClientCore_LL_SendReportedState(iotHubClientInstance->IoTHubClientLLHandle, reportedState, size, reportedStateCallback, userContextCallback); } else { IOTHUB_QUEUE_CONTEXT* queue_context = (IOTHUB_QUEUE_CONTEXT*)malloc(sizeof(IOTHUB_QUEUE_CONTEXT)); if (queue_context == NULL) { result = IOTHUB_CLIENT_ERROR; LogError("Failed allocating QUEUE_CONTEXT"); } else { queue_context->iotHubClientHandle = iotHubClientInstance; queue_context->userContextCallback = userContextCallback; queue_context->callbackFunction.reportedStateCallback = reportedStateCallback; result = IoTHubClientCore_LL_SendReportedState(iotHubClientInstance->IoTHubClientLLHandle, reportedState, size, iothub_ll_reported_state_callback, queue_context); if (result != IOTHUB_CLIENT_OK) { LogError("IoTHubClientCore_LL_SendReportedState failed"); free(queue_context); } } } (void)Unlock(iotHubClientInstance->LockHandle); } } } return result; } IOTHUB_CLIENT_RESULT IoTHubClientCore_GetTwinAsync(IOTHUB_CLIENT_CORE_HANDLE iotHubClientHandle, IOTHUB_CLIENT_DEVICE_TWIN_CALLBACK deviceTwinCallback, void* userContextCallback) { IOTHUB_CLIENT_RESULT result; if (iotHubClientHandle == NULL || deviceTwinCallback == NULL) { result = IOTHUB_CLIENT_INVALID_ARG; LogError("Invalid argument (iotHubClientHandle=%p, deviceTwinCallback=%p)", iotHubClientHandle, deviceTwinCallback); } else { IOTHUB_CLIENT_CORE_INSTANCE* iotHubClientInstance = (IOTHUB_CLIENT_CORE_INSTANCE*)iotHubClientHandle; if ((result = StartWorkerThreadIfNeeded(iotHubClientInstance)) != IOTHUB_CLIENT_OK) { result = IOTHUB_CLIENT_ERROR; LogError("Could not start worker thread"); } else { IOTHUB_QUEUE_CONSOLIDATED_CONTEXT* queueContext; if ((queueContext = (IOTHUB_QUEUE_CONSOLIDATED_CONTEXT*)malloc(sizeof(IOTHUB_QUEUE_CONSOLIDATED_CONTEXT))) == NULL) { LogError("Failed creating queue context"); result = IOTHUB_CLIENT_ERROR; } else { queueContext->iotHubClientHandle = iotHubClientHandle; queueContext->userCallback.getTwin = deviceTwinCallback; queueContext->userContext = userContextCallback; if (Lock(iotHubClientInstance->LockHandle) != LOCK_OK) { result = IOTHUB_CLIENT_ERROR; LogError("Could not acquire lock"); free(queueContext); } else { result = IoTHubClientCore_LL_GetTwinAsync(iotHubClientInstance->IoTHubClientLLHandle, iothub_ll_get_device_twin_async_callback, queueContext); if (result != IOTHUB_CLIENT_OK) { LogError("IoTHubClientCore_LL_GetTwinAsync failed"); free(queueContext); } (void)Unlock(iotHubClientInstance->LockHandle); } } } } return result; } static void freeDeviceMethodContext(IOTHUB_CLIENT_CORE_INSTANCE* iotHubClientInstance) { if (iotHubClientInstance->method_user_context) { free(iotHubClientInstance->method_user_context); iotHubClientInstance->method_user_context = NULL; } } static IOTHUB_CLIENT_RESULT allocateQueueContextForMethodCallback(IOTHUB_CLIENT_CORE_INSTANCE* iotHubClientInstance, void* userContextCallback) { IOTHUB_CLIENT_RESULT result; iotHubClientInstance->method_user_context = (IOTHUB_QUEUE_CONTEXT*)malloc(sizeof(IOTHUB_QUEUE_CONTEXT)); if (iotHubClientInstance->method_user_context == NULL) { LogError("Failed allocating QUEUE_CONTEXT"); result = IOTHUB_CLIENT_ERROR; } else { iotHubClientInstance->method_user_context->iotHubClientHandle = (IOTHUB_CLIENT_CORE_HANDLE)iotHubClientInstance; iotHubClientInstance->method_user_context->userContextCallback = userContextCallback; result = IOTHUB_CLIENT_OK; } return result; } IOTHUB_CLIENT_RESULT IoTHubClientCore_SetDeviceMethodCallback(IOTHUB_CLIENT_CORE_HANDLE iotHubClientHandle, IOTHUB_CLIENT_DEVICE_METHOD_CALLBACK_ASYNC deviceMethodCallback, void* userContextCallback) { IOTHUB_CLIENT_RESULT result; IOTHUB_CLIENT_CORE_INSTANCE* iotHubClientInstance = (IOTHUB_CLIENT_CORE_INSTANCE*)iotHubClientHandle; if (iotHubClientHandle == NULL) { result = IOTHUB_CLIENT_INVALID_ARG; LogError("invalid arg (NULL)"); } else if ((result = StartWorkerThreadIfNeeded(iotHubClientInstance)) != IOTHUB_CLIENT_OK) { result = IOTHUB_CLIENT_ERROR; LogError("Could not start worker thread"); } else if (Lock(iotHubClientInstance->LockHandle) != LOCK_OK) { result = IOTHUB_CLIENT_ERROR; LogError("Could not acquire lock"); } else { if (iotHubClientInstance->command_callback != NULL) { // Check whether command_callback is specified. An application can call IoTHubClientCore_SetDeviceMethodCallback multiple // times, but they cannot mix and match calls between IoTHubClientCore_SetDeviceMethodCallback and IoTHubClientCore_SubscribeToCommands. result = IOTHUB_CLIENT_ERROR; LogError("Command callback already defined"); } else { freeDeviceMethodContext(iotHubClientInstance); if (deviceMethodCallback == NULL) { result = IoTHubClientCore_LL_SetDeviceMethodCallback_Ex(iotHubClientInstance->IoTHubClientLLHandle, NULL, NULL); } else { if ((result = allocateQueueContextForMethodCallback(iotHubClientInstance, userContextCallback)) != IOTHUB_CLIENT_OK) { ; } else if ((result = IoTHubClientCore_LL_SetDeviceMethodCallback_Ex(iotHubClientInstance->IoTHubClientLLHandle, iothub_ll_device_method_callback, iotHubClientInstance->method_user_context)) != IOTHUB_CLIENT_OK) { LogError("IoTHubClientCore_LL_SetDeviceMethodCallback_Ex failed"); freeDeviceMethodContext(iotHubClientInstance); } else { iotHubClientInstance->device_method_callback = deviceMethodCallback; } } } (void)Unlock(iotHubClientInstance->LockHandle); } return result; } IOTHUB_CLIENT_RESULT IoTHubClientCore_SetDeviceMethodCallback_Ex(IOTHUB_CLIENT_CORE_HANDLE iotHubClientHandle, IOTHUB_CLIENT_INBOUND_DEVICE_METHOD_CALLBACK inboundDeviceMethodCallback, void* userContextCallback) { IOTHUB_CLIENT_RESULT result; IOTHUB_CLIENT_CORE_INSTANCE* iotHubClientInstance = (IOTHUB_CLIENT_CORE_INSTANCE*)iotHubClientHandle; if (iotHubClientHandle == NULL) { result = IOTHUB_CLIENT_INVALID_ARG; LogError("invalid arg (NULL)"); } else if ((result = StartWorkerThreadIfNeeded(iotHubClientInstance)) != IOTHUB_CLIENT_OK) { result = IOTHUB_CLIENT_ERROR; LogError("Could not start worker thread"); } else if (Lock(iotHubClientInstance->LockHandle) != LOCK_OK) { result = IOTHUB_CLIENT_ERROR; LogError("Could not acquire lock"); } else { if (iotHubClientInstance->command_callback != NULL) { result = IOTHUB_CLIENT_ERROR; LogError("Command callback already defined"); } else { freeDeviceMethodContext(iotHubClientInstance); if (inboundDeviceMethodCallback == NULL) { result = IoTHubClientCore_LL_SetDeviceMethodCallback_Ex(iotHubClientInstance->IoTHubClientLLHandle, NULL, NULL); } else { if ((result = allocateQueueContextForMethodCallback(iotHubClientInstance, userContextCallback)) != IOTHUB_CLIENT_OK) { ; } else if ((result = IoTHubClientCore_LL_SetDeviceMethodCallback_Ex(iotHubClientInstance->IoTHubClientLLHandle, iothub_ll_inbound_device_method_callback, iotHubClientInstance->method_user_context)) != IOTHUB_CLIENT_OK) { LogError("IoTHubClientCore_LL_SetDeviceMethodCallback_Ex failed"); freeDeviceMethodContext(iotHubClientInstance); } else { iotHubClientInstance->inbound_device_method_callback = inboundDeviceMethodCallback; } } } (void)Unlock(iotHubClientInstance->LockHandle); } return result; } // IoTHubClientCore_SubscribeToCommands sets up application to receive PnP style commands. At the underlying transport layer, this is almost identical // to legacy device methods so using very similar path to IoTHubClientCore_SetDeviceMethodCallback_Ex. Commands and legacy device methods // differ only if/when service initiates a request and we need to process callback to application. IOTHUB_CLIENT_RESULT IoTHubClientCore_SubscribeToCommands(IOTHUB_CLIENT_CORE_HANDLE iotHubClientHandle, IOTHUB_CLIENT_COMMAND_CALLBACK_ASYNC commandCallback, void* userContextCallback) { IOTHUB_CLIENT_RESULT result; IOTHUB_CLIENT_CORE_INSTANCE* iotHubClientInstance = (IOTHUB_CLIENT_CORE_INSTANCE*)iotHubClientHandle; if (iotHubClientHandle == NULL) { result = IOTHUB_CLIENT_INVALID_ARG; LogError("invalid iotHubClientHandle (NULL)"); } else if ((result = StartWorkerThreadIfNeeded(iotHubClientInstance)) != IOTHUB_CLIENT_OK) { result = IOTHUB_CLIENT_ERROR; LogError("Could not start worker thread"); } else if (Lock(iotHubClientInstance->LockHandle) != LOCK_OK) { result = IOTHUB_CLIENT_ERROR; LogError("Could not acquire lock"); } else { if ((iotHubClientInstance->device_method_callback != NULL) || (iotHubClientInstance->inbound_device_method_callback != NULL)) { // Check whether the device method callback is specified. An application can call IoTHubClientCore_SubscribeToCommands multiple // times, but they cannot mix and match calls between IoTHubClientCore_SetDeviceMethodCallback and IoTHubClientCore_SubscribeToCommands. result = IOTHUB_CLIENT_ERROR; LogError("DeviceMethod callback already defined"); } else { freeDeviceMethodContext(iotHubClientInstance); if (commandCallback == NULL) { result = IoTHubClientCore_LL_SetDeviceMethodCallback_Ex(iotHubClientInstance->IoTHubClientLLHandle, NULL, NULL); } else { if ((result = allocateQueueContextForMethodCallback(iotHubClientInstance, userContextCallback)) != IOTHUB_CLIENT_OK) { ; } else if ((result = IoTHubClientCore_LL_SetDeviceMethodCallback_Ex(iotHubClientInstance->IoTHubClientLLHandle, iothub_ll_command_callback, iotHubClientInstance->method_user_context)) != IOTHUB_CLIENT_OK) { LogError("IoTHubClientCore_LL_SetDeviceMethodCallback_Ex failed"); freeDeviceMethodContext(iotHubClientInstance); } else { iotHubClientInstance->command_callback = commandCallback; } } } (void)Unlock(iotHubClientInstance->LockHandle); } return result; } IOTHUB_CLIENT_RESULT IoTHubClientCore_DeviceMethodResponse(IOTHUB_CLIENT_CORE_HANDLE iotHubClientHandle, METHOD_HANDLE methodId, const unsigned char* response, size_t respSize, int statusCode) { IOTHUB_CLIENT_RESULT result; if (iotHubClientHandle == NULL) { result = IOTHUB_CLIENT_INVALID_ARG; LogError("invalid arg (NULL)"); } else { IOTHUB_CLIENT_CORE_INSTANCE* iotHubClientInstance = (IOTHUB_CLIENT_CORE_INSTANCE*)iotHubClientHandle; if (Lock(iotHubClientInstance->LockHandle) != LOCK_OK) { result = IOTHUB_CLIENT_ERROR; LogError("Could not acquire lock"); } else { result = IoTHubClientCore_LL_DeviceMethodResponse(iotHubClientInstance->IoTHubClientLLHandle, methodId, response, respSize, statusCode); if (result != IOTHUB_CLIENT_OK) { LogError("IoTHubClientCore_LL_DeviceMethodResponse failed"); } (void)Unlock(iotHubClientInstance->LockHandle); } } return result; } #if !defined(DONT_USE_UPLOADTOBLOB) || defined(USE_EDGE_MODULES) static IOTHUB_CLIENT_RESULT startHttpWorkerThread(IOTHUB_CLIENT_CORE_HANDLE iotHubClientHandle, HTTPWORKER_THREAD_INFO* threadInfo, THREAD_START_FUNC httpWorkerThreadFunc) { IOTHUB_CLIENT_RESULT result; LIST_ITEM_HANDLE item; // StartWorkerThreadIfNeeded creates the "main" worker thread used for transports. Though its not used // for these HTTP based worker threads (see ThreadAPI_Create call below) the main one is needed for garbage collection. if ((result = StartWorkerThreadIfNeeded(iotHubClientHandle)) != IOTHUB_CLIENT_OK) { LogError("Could not start worker thread"); } else if (Lock(threadInfo->iotHubClientHandle->LockHandle) != LOCK_OK) { LogError("Lock failed"); result = IOTHUB_CLIENT_ERROR; } else { if ((item = singlylinkedlist_add(threadInfo->iotHubClientHandle->httpWorkerThreadInfoList, threadInfo)) == NULL) { LogError("Adding item to list failed"); result = IOTHUB_CLIENT_ERROR; } else if (ThreadAPI_Create(&threadInfo->threadHandle, httpWorkerThreadFunc, threadInfo) != THREADAPI_OK) { LogError("unable to ThreadAPI_Create"); // Remove the item from linked list here, while we're still under lock. Final garbage collector also does it under lock. (void)singlylinkedlist_remove(threadInfo->iotHubClientHandle->httpWorkerThreadInfoList, item); result = IOTHUB_CLIENT_ERROR; } else { result = IOTHUB_CLIENT_OK; } (void)Unlock(threadInfo->iotHubClientHandle->LockHandle); } return result; } static int markThreadReadyToBeGarbageCollected(HTTPWORKER_THREAD_INFO* threadInfo) { if (Lock(threadInfo->lockGarbage) != LOCK_OK) { LogError("unable to Lock - trying anyway"); threadInfo->canBeGarbageCollected = 1; } else { threadInfo->canBeGarbageCollected = 1; if (Unlock(threadInfo->lockGarbage) != LOCK_OK) { LogError("unable to Unlock after locking"); } } ThreadAPI_Exit(0); return 0; } #endif // !defined(DONT_USE_UPLOADTOBLOB) || defined(USE_EDGE_MODULES) #if !defined(DONT_USE_UPLOADTOBLOB) static HTTPWORKER_THREAD_INFO* allocateUploadToBlob(const char* destinationFileName, IOTHUB_CLIENT_CORE_HANDLE iotHubClientHandle, void* context) { HTTPWORKER_THREAD_INFO* threadInfo = (HTTPWORKER_THREAD_INFO*)malloc(sizeof(HTTPWORKER_THREAD_INFO)); if (threadInfo == NULL) { LogError("unable to allocate thread object"); } else { memset(threadInfo, 0, sizeof(HTTPWORKER_THREAD_INFO)); threadInfo->workerThreadType = HTTPWORKER_THREAD_UPLOAD_TO_BLOB; threadInfo->iotHubClientHandle = iotHubClientHandle; threadInfo->context = context; if (mallocAndStrcpy_s(&threadInfo->destinationFileName, destinationFileName) != 0) { LogError("unable to mallocAndStrcpy_s"); freeHttpWorkerThreadInfo(threadInfo); threadInfo = NULL; } else if ((threadInfo->lockGarbage = Lock_Init()) == NULL) { LogError("unable to allocate a lock"); freeHttpWorkerThreadInfo(threadInfo); threadInfo = NULL; } } return threadInfo; } static IOTHUB_CLIENT_RESULT initializeUploadToBlobData(HTTPWORKER_THREAD_INFO* threadInfo, const unsigned char* source, size_t size, IOTHUB_CLIENT_FILE_UPLOAD_CALLBACK iotHubClientFileUploadCallback) { IOTHUB_CLIENT_RESULT result; threadInfo->uploadBlobSavedData.size = size; threadInfo->uploadBlobSavedData.iotHubClientFileUploadCallback = iotHubClientFileUploadCallback; if (size != 0) { if ((threadInfo->uploadBlobSavedData.source = (unsigned char*)malloc(size)) == NULL) { LogError("Cannot allocate source field"); result = IOTHUB_CLIENT_ERROR; } else { memcpy(threadInfo->uploadBlobSavedData.source, source, size); result = IOTHUB_CLIENT_OK; } } else { result = IOTHUB_CLIENT_OK; } return result; } static int uploadingThread(void *data) { IOTHUB_CLIENT_FILE_UPLOAD_RESULT upload_result; HTTPWORKER_THREAD_INFO* threadInfo = (HTTPWORKER_THREAD_INFO*)data; srand((unsigned int)get_time(NULL)); /*it so happens that IoTHubClientCore_LL_UploadToBlob is thread-safe because there's no saved state in the handle and there are no globals, so no need to protect it*/ /*not having it protected means multiple simultaneous uploads can happen*/ if (IoTHubClientCore_LL_UploadToBlob(threadInfo->iotHubClientHandle->IoTHubClientLLHandle, threadInfo->destinationFileName, threadInfo->uploadBlobSavedData.source, threadInfo->uploadBlobSavedData.size) == IOTHUB_CLIENT_OK) { upload_result = FILE_UPLOAD_OK; } else { LogError("unable to IoTHubClientCore_LL_UploadToBlob"); upload_result = FILE_UPLOAD_ERROR; } if (threadInfo->uploadBlobSavedData.iotHubClientFileUploadCallback != NULL) { threadInfo->uploadBlobSavedData.iotHubClientFileUploadCallback(upload_result, threadInfo->context); } return markThreadReadyToBeGarbageCollected(threadInfo); } IOTHUB_CLIENT_RESULT IoTHubClientCore_UploadToBlobAsync(IOTHUB_CLIENT_CORE_HANDLE iotHubClientHandle, const char* destinationFileName, const unsigned char* source, size_t size, IOTHUB_CLIENT_FILE_UPLOAD_CALLBACK iotHubClientFileUploadCallback, void* context) { IOTHUB_CLIENT_RESULT result; if ( (iotHubClientHandle == NULL) || (destinationFileName == NULL) || ((source == NULL) && (size > 0)) ) { LogError("invalid parameters IOTHUB_CLIENT_CORE_HANDLE iotHubClientHandle = %p , const char* destinationFileName = %s, const unsigned char* source= %p, size_t size = %lu, IOTHUB_CLIENT_FILE_UPLOAD_CALLBACK iotHubClientFileUploadCallback = %p, void* context = %p", iotHubClientHandle, destinationFileName, source, (unsigned long)size, iotHubClientFileUploadCallback, context ); result = IOTHUB_CLIENT_INVALID_ARG; } else { HTTPWORKER_THREAD_INFO *threadInfo = allocateUploadToBlob(destinationFileName, iotHubClientHandle, context); if (threadInfo == NULL) { LogError("unable to create upload thread info"); result = IOTHUB_CLIENT_ERROR; } else if ((result = initializeUploadToBlobData(threadInfo, source, size, iotHubClientFileUploadCallback)) != IOTHUB_CLIENT_OK) { LogError("unable to initialize upload blob info"); result = IOTHUB_CLIENT_ERROR; } else if ((result = startHttpWorkerThread(iotHubClientHandle, threadInfo, uploadingThread)) != IOTHUB_CLIENT_OK) { LogError("unable to start upload thread"); freeHttpWorkerThreadInfo(threadInfo); } else { result = IOTHUB_CLIENT_OK; } } return result; } static int uploadMultipleBlock_thread(void* data) { HTTPWORKER_THREAD_INFO* threadInfo = (HTTPWORKER_THREAD_INFO*)data; IOTHUB_CLIENT_CORE_LL_HANDLE llHandle = threadInfo->iotHubClientHandle->IoTHubClientLLHandle; IOTHUB_CLIENT_RESULT result; srand((unsigned int)get_time(NULL)); if (threadInfo->uploadBlobMultiblockSavedData.getDataCallback != NULL) { result = IoTHubClientCore_LL_UploadMultipleBlocksToBlob(llHandle, threadInfo->destinationFileName, threadInfo->uploadBlobMultiblockSavedData.getDataCallback, threadInfo->context); } else { result = IoTHubClientCore_LL_UploadMultipleBlocksToBlobEx(llHandle, threadInfo->destinationFileName, threadInfo->uploadBlobMultiblockSavedData.getDataCallbackEx, threadInfo->context); } (void)markThreadReadyToBeGarbageCollected(threadInfo); return result; } IOTHUB_CLIENT_RESULT IoTHubClientCore_UploadMultipleBlocksToBlobAsync(IOTHUB_CLIENT_CORE_HANDLE iotHubClientHandle, const char* destinationFileName, IOTHUB_CLIENT_FILE_UPLOAD_GET_DATA_CALLBACK getDataCallback, IOTHUB_CLIENT_FILE_UPLOAD_GET_DATA_CALLBACK_EX getDataCallbackEx, void* context) { IOTHUB_CLIENT_RESULT result; if ( (iotHubClientHandle == NULL) || (destinationFileName == NULL) || ((getDataCallback == NULL) && (getDataCallbackEx == NULL)) ) { LogError("invalid parameters iotHubClientHandle = %p , destinationFileName = %p, getDataCallback = %p, getDataCallbackEx = %p", iotHubClientHandle, destinationFileName, getDataCallback, getDataCallbackEx ); result = IOTHUB_CLIENT_INVALID_ARG; } else { HTTPWORKER_THREAD_INFO *threadInfo = allocateUploadToBlob(destinationFileName, iotHubClientHandle, context); if (threadInfo == NULL) { LogError("unable to create upload thread info"); result = IOTHUB_CLIENT_ERROR; } else { threadInfo->uploadBlobMultiblockSavedData.getDataCallback = getDataCallback; threadInfo->uploadBlobMultiblockSavedData.getDataCallbackEx = getDataCallbackEx; if ((result = startHttpWorkerThread(iotHubClientHandle, threadInfo, uploadMultipleBlock_thread)) != IOTHUB_CLIENT_OK) { LogError("unable to start upload thread"); freeHttpWorkerThreadInfo(threadInfo); } else { result = IOTHUB_CLIENT_OK; } } } return result; } IOTHUB_CLIENT_RESULT IoTHubClientCore_InitializeUpload(IOTHUB_CLIENT_CORE_HANDLE iotHubClientHandle, const char* destinationFileName, char** uploadCorrelationId, char** azureBlobSasUri) { IOTHUB_CLIENT_RESULT result; if (iotHubClientHandle == NULL) { LogError("invalid parameter iotHubClientHandle = %p", iotHubClientHandle); result = IOTHUB_CLIENT_INVALID_ARG; } else { result = IoTHubClientCore_LL_InitializeUpload(iotHubClientHandle->IoTHubClientLLHandle, destinationFileName, uploadCorrelationId, azureBlobSasUri); } return result; } IOTHUB_CLIENT_LL_UPLOADTOBLOB_CONTEXT_HANDLE IoTHubClientCore_AzureStorageCreateClient(IOTHUB_CLIENT_CORE_HANDLE iotHubClientHandle, const char* azureBlobSasUri) { IOTHUB_CLIENT_LL_UPLOADTOBLOB_CONTEXT_HANDLE result; if (iotHubClientHandle == NULL) { LogError("invalid parameter iotHubClientHandle = %p", iotHubClientHandle); result = NULL; } else { result = IoTHubClientCore_LL_AzureStorageCreateClient(iotHubClientHandle->IoTHubClientLLHandle, azureBlobSasUri); } return result; } IOTHUB_CLIENT_RESULT IoTHubClientCore_AzureStoragePutBlock(IOTHUB_CLIENT_LL_UPLOADTOBLOB_CONTEXT_HANDLE azureStorageClientHandle, uint32_t blockNumber, const uint8_t* dataPtr, size_t dataSize) { return IoTHubClientCore_LL_AzureStoragePutBlock(azureStorageClientHandle, blockNumber, dataPtr, dataSize); } IOTHUB_CLIENT_RESULT IoTHubClientCore_AzureStoragePutBlockList(IOTHUB_CLIENT_LL_UPLOADTOBLOB_CONTEXT_HANDLE azureStorageClientHandle) { return IoTHubClientCore_LL_AzureStoragePutBlockList(azureStorageClientHandle); } void IoTHubClientCore_AzureStorageDestroyClient(IOTHUB_CLIENT_LL_UPLOADTOBLOB_CONTEXT_HANDLE azureStorageClientHandle) { IoTHubClientCore_LL_AzureStorageDestroyClient(azureStorageClientHandle); } IOTHUB_CLIENT_RESULT IoTHubClientCore_NotifyUploadCompletion(IOTHUB_CLIENT_CORE_HANDLE iotHubClientHandle, const char* uploadCorrelationId, bool isSuccess, int responseCode, const char* responseMessage) { return IoTHubClientCore_LL_NotifyUploadCompletion(iotHubClientHandle->IoTHubClientLLHandle, uploadCorrelationId, isSuccess, responseCode, responseMessage); } #endif /*DONT_USE_UPLOADTOBLOB*/ IOTHUB_CLIENT_RESULT IoTHubClientCore_SendEventToOutputAsync(IOTHUB_CLIENT_CORE_HANDLE iotHubClientHandle, IOTHUB_MESSAGE_HANDLE eventMessageHandle, const char* outputName, IOTHUB_CLIENT_EVENT_CONFIRMATION_CALLBACK eventConfirmationCallback, void* userContextCallback) { IOTHUB_CLIENT_RESULT result; if ((iotHubClientHandle == NULL) || (outputName == NULL) || (eventMessageHandle == NULL)) { LogError("Invalid argument (iotHubClientHandle=%p, outputName=%p, eventMessageHandle=%p)", iotHubClientHandle, outputName, eventMessageHandle); result = IOTHUB_CLIENT_INVALID_ARG; } else { if (IoTHubMessage_SetOutputName(eventMessageHandle, outputName) != IOTHUB_MESSAGE_OK) { LogError("IoTHubMessage_SetOutputName failed"); result = IOTHUB_CLIENT_ERROR; } else if ((result = IoTHubClientCore_SendEventAsync(iotHubClientHandle, eventMessageHandle, eventConfirmationCallback, userContextCallback)) != IOTHUB_CLIENT_OK) { LogError("Call into IoTHubClient_SendEventAsync failed, result=%d", result); } } return result; } IOTHUB_CLIENT_RESULT IoTHubClientCore_SetInputMessageCallback(IOTHUB_CLIENT_CORE_HANDLE iotHubClientHandle, const char* inputName, IOTHUB_CLIENT_MESSAGE_CALLBACK_ASYNC eventHandlerCallback, void* userContextCallback) { IOTHUB_CLIENT_RESULT result; if (iotHubClientHandle == NULL) { result = IOTHUB_CLIENT_INVALID_ARG; LogError("NULL iothubClientHandle"); } else { IOTHUB_CLIENT_CORE_INSTANCE* iotHubClientInstance = (IOTHUB_CLIENT_CORE_INSTANCE*)iotHubClientHandle; if ((result = StartWorkerThreadIfNeeded(iotHubClientInstance)) != IOTHUB_CLIENT_OK) { result = IOTHUB_CLIENT_ERROR; LogError("Could not start worker thread"); } else { if (Lock(iotHubClientInstance->LockHandle) != LOCK_OK) { result = IOTHUB_CLIENT_ERROR; LogError("Could not acquire lock"); } else { IOTHUB_INPUTMESSAGE_CALLBACK_CONTEXT inputMessageCallbackContext; inputMessageCallbackContext.iotHubClientHandle = iotHubClientHandle; inputMessageCallbackContext.eventHandlerCallback = eventHandlerCallback; inputMessageCallbackContext.userContextCallback = userContextCallback; result = IoTHubClientCore_LL_SetInputMessageCallbackEx(iotHubClientInstance->IoTHubClientLLHandle, inputName, iothub_ll_inputmessage_callback, (void*)&inputMessageCallbackContext, sizeof(inputMessageCallbackContext)); (void)Unlock(iotHubClientInstance->LockHandle); } } } return result; } #ifdef USE_EDGE_MODULES HTTPWORKER_THREAD_INFO * allocateMethodInvoke(IOTHUB_CLIENT_CORE_HANDLE iotHubClientHandle, const char* deviceId, const char* moduleId, const char* methodName, const char* methodPayload, unsigned int timeout, IOTHUB_METHOD_INVOKE_CALLBACK methodInvokeCallback, void* context) { HTTPWORKER_THREAD_INFO* threadInfo = (HTTPWORKER_THREAD_INFO*)malloc(sizeof(HTTPWORKER_THREAD_INFO)); if (threadInfo == NULL) { LogError("unable to allocate thread object"); } else { memset(threadInfo, 0, sizeof(HTTPWORKER_THREAD_INFO)); threadInfo->workerThreadType = HTTPWORKER_THREAD_INVOKE_METHOD; threadInfo->iotHubClientHandle = iotHubClientHandle; threadInfo->context = context; threadInfo->invokeMethodSavedData.timeout = timeout; threadInfo->invokeMethodSavedData.methodInvokeCallback = methodInvokeCallback; if ((mallocAndStrcpy_s((char**)&threadInfo->invokeMethodSavedData.deviceId, deviceId) != 0) || ((moduleId != NULL) && mallocAndStrcpy_s((char**)&threadInfo->invokeMethodSavedData.moduleId, moduleId) != 0) || (mallocAndStrcpy_s((char**)&threadInfo->invokeMethodSavedData.methodName, methodName) != 0) || (mallocAndStrcpy_s((char**)&threadInfo->invokeMethodSavedData.methodPayload, methodPayload) != 0)) { LogError("Allocating resources failed"); freeHttpWorkerThreadInfo(threadInfo); threadInfo = NULL; } else if ((threadInfo->lockGarbage = Lock_Init()) == NULL) { LogError("unable to allocate a lock"); freeHttpWorkerThreadInfo(threadInfo); threadInfo = NULL; } } return threadInfo; } static int uploadMethodInvoke_thread(void* data) { IOTHUB_CLIENT_RESULT result; HTTPWORKER_THREAD_INFO* threadInfo = (HTTPWORKER_THREAD_INFO*)data; srand((unsigned int)get_time(NULL)); int responseStatus; unsigned char* responsePayload = NULL; size_t responsePayloadSize; result = IoTHubClientCore_LL_GenericMethodInvoke(threadInfo->iotHubClientHandle->IoTHubClientLLHandle, threadInfo->invokeMethodSavedData.deviceId, threadInfo->invokeMethodSavedData.moduleId, threadInfo->invokeMethodSavedData.methodName, threadInfo->invokeMethodSavedData.methodPayload, threadInfo->invokeMethodSavedData.timeout, &responseStatus, &responsePayload, &responsePayloadSize); if (threadInfo->invokeMethodSavedData.methodInvokeCallback != NULL) { threadInfo->invokeMethodSavedData.methodInvokeCallback(result, responseStatus, responsePayload, responsePayloadSize, threadInfo->context); } if (responsePayload != NULL) { free(responsePayload); } (void)markThreadReadyToBeGarbageCollected(threadInfo); return result; } IOTHUB_CLIENT_RESULT IoTHubClientCore_GenericMethodInvoke(IOTHUB_CLIENT_CORE_HANDLE iotHubClientHandle, const char* deviceId, const char* moduleId, const char* methodName, const char* methodPayload, unsigned int timeout, IOTHUB_METHOD_INVOKE_CALLBACK methodInvokeCallback, void* context) { IOTHUB_CLIENT_RESULT result; HTTPWORKER_THREAD_INFO *threadInfo; if ((iotHubClientHandle == NULL) || (deviceId == NULL) || (methodName == NULL) || (methodPayload == NULL)) { LogError("Invalid argument (iotHubClientHandle=%p, deviceId=%p, methodName=%p, methodPayload=%p)", iotHubClientHandle, deviceId, methodName, methodPayload); result = IOTHUB_CLIENT_INVALID_ARG; } else if ((threadInfo = allocateMethodInvoke(iotHubClientHandle, deviceId, moduleId, methodName, methodPayload, timeout, methodInvokeCallback, context)) == NULL) { LogError("failed allocating method invoke thread info"); result = IOTHUB_CLIENT_ERROR; } else if ((result = startHttpWorkerThread(iotHubClientHandle, threadInfo, uploadMethodInvoke_thread)) != IOTHUB_CLIENT_OK) { LogError("unable to start method invoke thread"); freeHttpWorkerThreadInfo(threadInfo); } else { result = IOTHUB_CLIENT_OK; } return result; } #endif /* USE_EDGE_MODULES */ IOTHUB_CLIENT_RESULT IoTHubClientCore_SendMessageDisposition(IOTHUB_CLIENT_CORE_HANDLE iotHubClientHandle, IOTHUB_MESSAGE_HANDLE message, IOTHUBMESSAGE_DISPOSITION_RESULT disposition) { IOTHUB_CLIENT_RESULT result; if (iotHubClientHandle == NULL || message == NULL) { LogError("Invalid argument (iotHubClientHandle=%p, message=%p)", iotHubClientHandle, message); result = IOTHUB_CLIENT_INVALID_ARG; } else { IOTHUB_CLIENT_CORE_INSTANCE* iotHubClientInstance = (IOTHUB_CLIENT_CORE_INSTANCE*)iotHubClientHandle; if ((result = StartWorkerThreadIfNeeded(iotHubClientInstance)) != IOTHUB_CLIENT_OK) { result = IOTHUB_CLIENT_ERROR; LogError("Could not start worker thread"); } else { if (Lock(iotHubClientInstance->LockHandle) != LOCK_OK) { result = IOTHUB_CLIENT_ERROR; LogError("Could not acquire lock"); } else { result = IoTHubClientCore_LL_SendMessageDisposition(iotHubClientInstance->IoTHubClientLLHandle, message, disposition); (void)Unlock(iotHubClientInstance->LockHandle); if (result != IOTHUB_CLIENT_OK) { LogError("IoTHubClientCore_LL_SendMessageDisposition failed (result=%d)", result); } } } } return result; }