Julian Higginson
WIP. send a large constant string twice a second, in order to test out the transport with something indicative of our required load.
Dependencies: FXOS8700CQ NTPClient azure_umqtt_c iothub_mqtt_transport mbed-rtos mbed wolfSSL Socket lwip-eth lwip-sys lwip
Fork of
FXOS8700CQ_To_Azure_IoT
by 
Mark Radbourne
Diff: iothub_client/iothub_client_ll.c
- Revision:
- 3:c0556ff7b8e3
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/iothub_client/iothub_client_ll.c Thu Dec 08 00:11:40 2016 +0000
@@ -0,0 +1,1481 @@
+// Copyright (c) Microsoft. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+
+#include <stdlib.h>
+#ifdef _CRTDBG_MAP_ALLOC
+#include <crtdbg.h>
+#endif
+#include <string.h>
+#include "azure_c_shared_utility/gballoc.h"
+#include "azure_c_shared_utility/string_tokenizer.h"
+#include "azure_c_shared_utility/doublylinkedlist.h"
+#include "azure_c_shared_utility/xlogging.h"
+#include "azure_c_shared_utility/tickcounter.h"
+#include "azure_c_shared_utility/constbuffer.h"
+
+#include "iothub_client_ll.h"
+#include "iothub_client_private.h"
+#include "iothub_client_version.h"
+#include "iothub_transport_ll.h"
+#include <stdint.h>
+
+#ifndef DONT_USE_UPLOADTOBLOB
+#include "iothub_client_ll_uploadtoblob.h"
+#endif
+
+#define LOG_ERROR_RESULT LogError("result = %s", ENUM_TO_STRING(IOTHUB_CLIENT_RESULT, result));
+#define INDEFINITE_TIME ((time_t)(-1))
+
+DEFINE_ENUM_STRINGS(IOTHUB_CLIENT_RESULT, IOTHUB_CLIENT_RESULT_VALUES);
+DEFINE_ENUM_STRINGS(IOTHUB_CLIENT_CONFIRMATION_RESULT, IOTHUB_CLIENT_CONFIRMATION_RESULT_VALUES);
+
+typedef struct IOTHUB_CLIENT_LL_HANDLE_DATA_TAG
+{
+ DLIST_ENTRY waitingToSend;
+ DLIST_ENTRY iot_msg_queue;
+ DLIST_ENTRY iot_ack_queue;
+ TRANSPORT_LL_HANDLE transportHandle;
+ bool isSharedTransport;
+ IOTHUB_DEVICE_HANDLE deviceHandle;
+ TRANSPORT_PROVIDER_FIELDS;
+ IOTHUB_CLIENT_MESSAGE_CALLBACK_ASYNC messageCallback;
+ void* messageUserContextCallback;
+ IOTHUB_CLIENT_CONNECTION_STATUS_CALLBACK conStatusCallback;
+ void* conStatusUserContextCallback;
+ time_t lastMessageReceiveTime;
+ TICK_COUNTER_HANDLE tickCounter; /*shared tickcounter used to track message timeouts in waitingToSend list*/
+ uint64_t currentMessageTimeout;
+ uint64_t current_device_twin_timeout;
+ IOTHUB_CLIENT_DEVICE_TWIN_CALLBACK deviceTwinCallback;
+ void* deviceTwinContextCallback;
+ IOTHUB_CLIENT_DEVICE_METHOD_CALLBACK_ASYNC deviceMethodCallback;
+ void* deviceMethodUserContextCallback;
+ IOTHUB_CLIENT_RETRY_POLICY retryPolicy;
+ size_t retryTimeoutLimitInSeconds;
+#ifndef DONT_USE_UPLOADTOBLOB
+ IOTHUB_CLIENT_LL_UPLOADTOBLOB_HANDLE uploadToBlobHandle;
+#endif
+ uint32_t data_msg_id;
+ bool complete_twin_update_encountered;
+}IOTHUB_CLIENT_LL_HANDLE_DATA;
+
+static const char HOSTNAME_TOKEN[] = "HostName";
+static const char DEVICEID_TOKEN[] = "DeviceId";
+static const char X509_TOKEN[] = "x509";
+static const char X509_TOKEN_ONLY_ACCEPTABLE_VALUE[] = "true";
+static const char DEVICEKEY_TOKEN[] = "SharedAccessKey";
+static const char DEVICESAS_TOKEN[] = "SharedAccessSignature";
+static const char PROTOCOL_GATEWAY_HOST[] = "GatewayHostName";
+
+static void device_twin_data_destroy(IOTHUB_DEVICE_TWIN* client_item)
+{
+ CONSTBUFFER_Destroy(client_item->report_data_handle);
+ free(client_item);
+}
+
+static uint32_t get_next_item_id(IOTHUB_CLIENT_LL_HANDLE_DATA* handleData)
+{
+ if (handleData->data_msg_id+1 >= UINT32_MAX)
+ {
+ handleData->data_msg_id = 1;
+ }
+ else
+ {
+ handleData->data_msg_id++;
+ }
+ return handleData->data_msg_id;
+}
+
+static IOTHUB_DEVICE_TWIN* dev_twin_data_create(IOTHUB_CLIENT_LL_HANDLE_DATA* handleData, uint32_t id, const unsigned char* reportedState, size_t size, IOTHUB_CLIENT_REPORTED_STATE_CALLBACK reportedStateCallback, void* userContextCallback)
+{
+ IOTHUB_DEVICE_TWIN* result = (IOTHUB_DEVICE_TWIN*)malloc(sizeof(IOTHUB_DEVICE_TWIN) );
+ if (result != NULL)
+ {
+ result->report_data_handle = CONSTBUFFER_Create(reportedState, size);
+ if (result->report_data_handle == NULL)
+ {
+ LogError("Failure allocating reported state data");
+ free(result);
+ result = NULL;
+ }
+ else if (tickcounter_get_current_ms(handleData->tickCounter, &result->ms_timesOutAfter) != 0)
+ {
+ LogError("Failure getting tickcount info");
+ CONSTBUFFER_Destroy(result->report_data_handle);
+ free(result);
+ result = NULL;
+ }
+ else
+ {
+ result->item_id = id;
+ result->ms_timesOutAfter = 0;
+ result->context = userContextCallback;
+ result->reported_state_callback = reportedStateCallback;
+ }
+ }
+ else
+ {
+ LogError("Failure allocating device twin information");
+ }
+ return result;
+}
+
+IOTHUB_CLIENT_LL_HANDLE IoTHubClient_LL_CreateFromConnectionString(const char* connectionString, IOTHUB_CLIENT_TRANSPORT_PROVIDER protocol)
+{
+ IOTHUB_CLIENT_LL_HANDLE result;
+
+ /*Codes_SRS_IOTHUBCLIENT_LL_05_001: [IoTHubClient_LL_CreateFromConnectionString shall obtain the version string by a call to IoTHubClient_GetVersionString.]*/
+ /*Codes_SRS_IOTHUBCLIENT_LL_05_002: [IoTHubClient_LL_CreateFromConnectionString shall print the version string to standard output.]*/
+ LogInfo("IoT Hub SDK for C, version %s", IoTHubClient_GetVersionString());
+
+ /* Codes_SRS_IOTHUBCLIENT_LL_12_003: [IoTHubClient_LL_CreateFromConnectionString shall verify the input parameter and if it is NULL then return NULL] */
+ if (connectionString == NULL)
+ {
+ LogError("Input parameter is NULL: connectionString");
+ result = NULL;
+ }
+ else if (protocol == NULL)
+ {
+ LogError("Input parameter is NULL: protocol");
+ result = NULL;
+ }
+ else
+ {
+ /* Codes_SRS_IOTHUBCLIENT_LL_12_004: [IoTHubClient_LL_CreateFromConnectionString shall allocate IOTHUB_CLIENT_CONFIG structure] */
+ IOTHUB_CLIENT_CONFIG* config = (IOTHUB_CLIENT_CONFIG*) malloc(sizeof(IOTHUB_CLIENT_CONFIG));
+ if (config == NULL)
+ {
+ /* Codes_SRS_IOTHUBCLIENT_LL_12_012: [If the allocation failed IoTHubClient_LL_CreateFromConnectionString returns NULL] */
+ LogError("Malloc failed");
+ result = NULL;
+ }
+ else
+ {
+ STRING_TOKENIZER_HANDLE tokenizer1 = NULL;
+ STRING_HANDLE connString = NULL;
+ STRING_HANDLE tokenString = NULL;
+ STRING_HANDLE valueString = NULL;
+ STRING_HANDLE hostNameString = NULL;
+ STRING_HANDLE hostSuffixString = NULL;
+ STRING_HANDLE deviceIdString = NULL;
+ STRING_HANDLE deviceKeyString = NULL;
+ STRING_HANDLE deviceSasTokenString = NULL;
+ STRING_HANDLE protocolGateway = NULL;
+
+ config->protocol = protocol;
+
+ config->iotHubName = NULL;
+ config->iotHubSuffix = NULL;
+ config->deviceId = NULL;
+ config->deviceKey = NULL;
+ config->deviceSasToken = NULL;
+
+ /* Codes_SRS_IOTHUBCLIENT_LL_04_002: [If it does not, it shall pass the protocolGatewayHostName NULL.] */
+ config->protocolGatewayHostName = NULL;
+
+ if ((connString = STRING_construct(connectionString)) == NULL)
+ {
+ LogError("Error constructing connectiong String");
+ result = NULL;
+ }
+ else if ((tokenizer1 = STRING_TOKENIZER_create(connString)) == NULL)
+ {
+ LogError("Error creating Tokenizer");
+ result = NULL;
+ }
+ else if ((tokenString = STRING_new()) == NULL)
+ {
+ LogError("Error creating Token String");
+ result = NULL;
+ }
+ else if ((valueString = STRING_new()) == NULL)
+ {
+ LogError("Error creating Value String");
+ result = NULL;
+ }
+ else if ((hostNameString = STRING_new()) == NULL)
+ {
+ LogError("Error creating HostName String");
+ result = NULL;
+ }
+ else if ((hostSuffixString = STRING_new()) == NULL)
+ {
+ LogError("Error creating HostSuffix String");
+ result = NULL;
+ }
+ /* Codes_SRS_IOTHUBCLIENT_LL_12_005: [IoTHubClient_LL_CreateFromConnectionString shall try to parse the connectionString input parameter for the following structure: "Key1=value1;key2=value2;key3=value3..."] */
+ /* Codes_SRS_IOTHUBCLIENT_LL_12_006: [IoTHubClient_LL_CreateFromConnectionString shall verify the existence of the following Key/Value pairs in the connection string: HostName, DeviceId, SharedAccessKey, SharedAccessSignature or x509] */
+ else
+ {
+ int isx509found = 0;
+ while ((STRING_TOKENIZER_get_next_token(tokenizer1, tokenString, "=") == 0))
+ {
+ if (STRING_TOKENIZER_get_next_token(tokenizer1, valueString, ";") != 0)
+ {
+ LogError("Tokenizer error");
+ break;
+ }
+ else
+ {
+ if (tokenString != NULL)
+ {
+ /* Codes_SRS_IOTHUBCLIENT_LL_12_010: [IoTHubClient_LL_CreateFromConnectionString shall fill up the IOTHUB_CLIENT_CONFIG structure using the following mapping: iotHubName = Name, iotHubSuffix = Suffix, deviceId = DeviceId, deviceKey = SharedAccessKey or deviceSasToken = SharedAccessSignature] */
+ const char* s_token = STRING_c_str(tokenString);
+ if (strcmp(s_token, HOSTNAME_TOKEN) == 0)
+ {
+ /* Codes_SRS_IOTHUBCLIENT_LL_12_009: [IoTHubClient_LL_CreateFromConnectionString shall split the value of HostName to Name and Suffix using the first "." as a separator] */
+ STRING_TOKENIZER_HANDLE tokenizer2 = NULL;
+ if ((tokenizer2 = STRING_TOKENIZER_create(valueString)) == NULL)
+ {
+ LogError("Error creating Tokenizer");
+ break;
+ }
+ else
+ {
+ /* Codes_SRS_IOTHUBCLIENT_LL_12_015: [If the string split failed, IoTHubClient_LL_CreateFromConnectionString returns NULL ] */
+ if (STRING_TOKENIZER_get_next_token(tokenizer2, hostNameString, ".") != 0)
+ {
+ LogError("Tokenizer error");
+ STRING_TOKENIZER_destroy(tokenizer2);
+ break;
+ }
+ else
+ {
+ config->iotHubName = STRING_c_str(hostNameString);
+ if (STRING_TOKENIZER_get_next_token(tokenizer2, hostSuffixString, ";") != 0)
+ {
+ LogError("Tokenizer error");
+ STRING_TOKENIZER_destroy(tokenizer2);
+ break;
+ }
+ else
+ {
+ config->iotHubSuffix = STRING_c_str(hostSuffixString);
+ }
+ }
+ STRING_TOKENIZER_destroy(tokenizer2);
+ }
+ }
+ else if (strcmp(s_token, DEVICEID_TOKEN) == 0)
+ {
+ deviceIdString = STRING_clone(valueString);
+ if (deviceIdString != NULL)
+ {
+ config->deviceId = STRING_c_str(deviceIdString);
+ }
+ else
+ {
+ LogError("Failure cloning device id string");
+ break;
+ }
+ }
+ else if (strcmp(s_token, DEVICEKEY_TOKEN) == 0)
+ {
+ deviceKeyString = STRING_clone(valueString);
+ if (deviceKeyString != NULL)
+ {
+ config->deviceKey = STRING_c_str(deviceKeyString);
+ }
+ else
+ {
+ LogError("Failure cloning device key string");
+ break;
+ }
+ }
+ else if (strcmp(s_token, DEVICESAS_TOKEN) == 0)
+ {
+ deviceSasTokenString = STRING_clone(valueString);
+ if (deviceSasTokenString != NULL)
+ {
+ config->deviceSasToken = STRING_c_str(deviceSasTokenString);
+ }
+ else
+ {
+ LogError("Failure cloning device sasToken string");
+ break;
+ }
+ }
+ else if (strcmp(s_token, X509_TOKEN) == 0)
+ {
+ if (strcmp(STRING_c_str(valueString), X509_TOKEN_ONLY_ACCEPTABLE_VALUE) != 0)
+ {
+ LogError("x509 option has wrong value, the only acceptable one is \"true\"");
+ break;
+ }
+ else
+ {
+ isx509found = 1;
+ }
+ }
+ /* Codes_SRS_IOTHUBCLIENT_LL_04_001: [IoTHubClient_LL_CreateFromConnectionString shall verify the existence of key/value pair GatewayHostName. If it does exist it shall pass the value to IoTHubClient_LL_Create API.] */
+ else if (strcmp(s_token, PROTOCOL_GATEWAY_HOST) == 0)
+ {
+ protocolGateway = STRING_clone(valueString);
+ if (protocolGateway != NULL)
+ {
+ config->protocolGatewayHostName = STRING_c_str(protocolGateway);
+ }
+ else
+ {
+ LogError("Failure cloning protocol Gateway Name");
+ break;
+ }
+ }
+ }
+ }
+ }
+ /* parsing is done - check the result */
+ if (config->iotHubName == NULL)
+ {
+ LogError("iotHubName is not found");
+ result = NULL;
+ }
+ else if (config->iotHubSuffix == NULL)
+ {
+ LogError("iotHubSuffix is not found");
+ result = NULL;
+ }
+ else if (config->deviceId == NULL)
+ {
+ LogError("deviceId is not found");
+ result = NULL;
+ }
+ else if (!(
+ ((!isx509found) && (config->deviceSasToken == NULL) ^ (config->deviceKey == NULL)) ||
+ ((isx509found) && (config->deviceSasToken == NULL) && (config->deviceKey == NULL))
+ ))
+ {
+ LogError("invalid combination of x509, deviceSasToken and deviceKey");
+ result = NULL;
+ }
+ else
+ {
+ /* Codes_SRS_IOTHUBCLIENT_LL_12_011: [IoTHubClient_LL_CreateFromConnectionString shall call into the IoTHubClient_LL_Create API with the current structure and returns with the return value of it] */
+
+ result = IoTHubClient_LL_Create(config);
+ if (result == NULL)
+ {
+ LogError("IoTHubClient_LL_Create failed");
+ }
+ else
+ {
+ /*return as is*/
+ }
+ }
+ }
+ if (deviceSasTokenString != NULL)
+ STRING_delete(deviceSasTokenString);
+ if (deviceKeyString != NULL)
+ STRING_delete(deviceKeyString);
+ if (deviceIdString != NULL)
+ STRING_delete(deviceIdString);
+ if (hostSuffixString != NULL)
+ STRING_delete(hostSuffixString);
+ if (hostNameString != NULL)
+ STRING_delete(hostNameString);
+ if (valueString != NULL)
+ STRING_delete(valueString);
+ if (tokenString != NULL)
+ STRING_delete(tokenString);
+ if (connString != NULL)
+ STRING_delete(connString);
+ if (protocolGateway != NULL)
+ STRING_delete(protocolGateway);
+
+ if (tokenizer1 != NULL)
+ STRING_TOKENIZER_destroy(tokenizer1);
+
+ free(config);
+ }
+ }
+ return result;
+}
+
+static void setTransportProtocol(IOTHUB_CLIENT_LL_HANDLE_DATA* handleData, TRANSPORT_PROVIDER* protocol)
+{
+ handleData->IoTHubTransport_GetHostname = protocol->IoTHubTransport_GetHostname;
+ handleData->IoTHubTransport_SetOption = protocol->IoTHubTransport_SetOption;
+ handleData->IoTHubTransport_Create = protocol->IoTHubTransport_Create;
+ handleData->IoTHubTransport_Destroy = protocol->IoTHubTransport_Destroy;
+ handleData->IoTHubTransport_Register = protocol->IoTHubTransport_Register;
+ handleData->IoTHubTransport_Unregister = protocol->IoTHubTransport_Unregister;
+ handleData->IoTHubTransport_Subscribe = protocol->IoTHubTransport_Subscribe;
+ handleData->IoTHubTransport_Unsubscribe = protocol->IoTHubTransport_Unsubscribe;
+ handleData->IoTHubTransport_DoWork = protocol->IoTHubTransport_DoWork;
+ handleData->IoTHubTransport_SetRetryPolicy = protocol->IoTHubTransport_SetRetryPolicy;
+ handleData->IoTHubTransport_GetSendStatus = protocol->IoTHubTransport_GetSendStatus;
+ handleData->IoTHubTransport_ProcessItem = protocol->IoTHubTransport_ProcessItem;
+ handleData->IoTHubTransport_Subscribe_DeviceTwin = protocol->IoTHubTransport_Subscribe_DeviceTwin;
+ handleData->IoTHubTransport_Unsubscribe_DeviceTwin = protocol->IoTHubTransport_Unsubscribe_DeviceTwin;
+ handleData->IoTHubTransport_Subscribe_DeviceMethod = protocol->IoTHubTransport_Subscribe_DeviceMethod;
+ handleData->IoTHubTransport_Unsubscribe_DeviceMethod = protocol->IoTHubTransport_Unsubscribe_DeviceMethod;
+}
+
+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
+ {
+#ifndef DONT_USE_UPLOADTOBLOB
+ /*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
+#endif
+ {
+ /*Codes_SRS_IOTHUBCLIENT_LL_02_045: [ Otherwise IoTHubClient_LL_Create shall create a new TICK_COUNTER_HANDLE ]*/
+ if ((handleData->tickCounter = tickcounter_create()) == NULL)
+ {
+#ifndef DONT_USE_UPLOADTOBLOB
+ /*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);
+#endif
+ 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));
+ DList_InitializeListHead(&(handleData->iot_msg_queue));
+ DList_InitializeListHead(&(handleData->iot_ack_queue));
+ setTransportProtocol(handleData, (TRANSPORT_PROVIDER*)config->protocol());
+ handleData->messageCallback = NULL;
+ handleData->messageUserContextCallback = NULL;
+ handleData->deviceTwinCallback = NULL;
+ handleData->deviceTwinContextCallback = NULL;
+ handleData->deviceMethodCallback = NULL;
+ handleData->deviceMethodUserContextCallback = NULL;
+ handleData->lastMessageReceiveTime = INDEFINITE_TIME;
+ handleData->data_msg_id = 1;
+ handleData->complete_twin_update_encountered = false;
+ handleData->conStatusCallback = NULL;
+ handleData->conStatusUserContextCallback = 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");
+#ifndef DONT_USE_UPLOADTOBLOB
+ IoTHubClient_LL_UploadToBlob_Destroy(handleData->uploadToBlobHandle);
+#endif
+ 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);
+#ifndef DONT_USE_UPLOADTOBLOB
+ IoTHubClient_LL_UploadToBlob_Destroy(handleData->uploadToBlobHandle);
+#endif
+ 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;
+ handleData->current_device_twin_timeout = 0;
+ result = handleData;
+ /*Codes_SRS_IOTHUBCLIENT_LL_25_124: [ `IoTHubClient_LL_Create` shall set the default retry policy as Exponential backoff with jitter and if succeed and return a `non-NULL` handle. ]*/
+ if (IoTHubClient_LL_SetRetryPolicy(handleData, IOTHUB_CLIENT_RETRY_EXPONENTIAL_BACKOFF_WITH_JITTER, 0) != IOTHUB_CLIENT_OK)
+ {
+ LogError("Setting default retry policy in transport failed");
+ IoTHubClient_LL_Destroy(handleData);
+ result = 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) ||
+ /*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 = (char*) 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));
+ DList_InitializeListHead(&(handleData->iot_msg_queue));
+ DList_InitializeListHead(&(handleData->iot_ack_queue));
+ handleData->messageCallback = NULL;
+ handleData->messageUserContextCallback = NULL;
+ handleData->deviceTwinCallback = NULL;
+ handleData->deviceTwinContextCallback = NULL;
+ handleData->deviceMethodCallback = NULL;
+ handleData->deviceMethodUserContextCallback = NULL;
+ handleData->lastMessageReceiveTime = INDEFINITE_TIME;
+ handleData->data_msg_id = 1;
+ handleData->complete_twin_update_encountered = false;
+
+ 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;
+ handleData->current_device_twin_timeout = 0;
+ result = handleData;
+ /*Codes_SRS_IOTHUBCLIENT_LL_25_125: [ `IoTHubClient_LL_CreateWithTransport` shall set the default retry policy as Exponential backoff with jitter and if succeed and return a `non-NULL` handle. ]*/
+ if (IoTHubClient_LL_SetRetryPolicy(handleData, IOTHUB_CLIENT_RETRY_EXPONENTIAL_BACKOFF_WITH_JITTER, 0) != IOTHUB_CLIENT_OK)
+ {
+ LogError("Setting default retry policy in transport failed");
+ IoTHubClient_LL_Destroy(handleData);
+ result = NULL;
+ }
+ }
+ }
+ }
+#ifndef DONT_USE_UPLOADTOBLOB
+ free(IoTHubName);
+ }
+ }
+#endif
+ }
+ }
+
+ return result;
+}
+
+void IoTHubClient_LL_Destroy(IOTHUB_CLIENT_LL_HANDLE iotHubClientHandle)
+{
+ /*Codes_SRS_IOTHUBCLIENT_LL_02_009: [IoTHubClient_LL_Destroy shall do nothing if parameter iotHubClientHandle is NULL.]*/
+ if (iotHubClientHandle != NULL)
+ {
+ PDLIST_ENTRY unsend;
+ /*Codes_SRS_IOTHUBCLIENT_LL_17_010: [IoTHubClient_LL_Destroy shall call the underlaying layer's _Unregister function] */
+ IOTHUB_CLIENT_LL_HANDLE_DATA* handleData = (IOTHUB_CLIENT_LL_HANDLE_DATA*)iotHubClientHandle;
+ handleData->IoTHubTransport_Unregister(handleData->deviceHandle);
+ if (handleData->isSharedTransport == false)
+ {
+ /*Codes_SRS_IOTHUBCLIENT_LL_02_010: [If iotHubClientHandle was not created by IoTHubClient_LL_CreateWithTransport, IoTHubClient_LL_Destroy shall call the underlaying layer's _Destroy function.] */
+ handleData->IoTHubTransport_Destroy(handleData->transportHandle);
+ }
+ /*if any, remove the items currently not send*/
+ while ((unsend = DList_RemoveHeadList(&(handleData->waitingToSend))) != &(handleData->waitingToSend))
+ {
+ IOTHUB_MESSAGE_LIST* temp = containingRecord(unsend, IOTHUB_MESSAGE_LIST, entry);
+ /*Codes_SRS_IOTHUBCLIENT_LL_02_033: [Otherwise, IoTHubClient_LL_Destroy shall complete all the event message callbacks that are in the waitingToSend list with the result IOTHUB_CLIENT_CONFIRMATION_BECAUSE_DESTROY.] */
+ if (temp->callback != NULL)
+ {
+ temp->callback(IOTHUB_CLIENT_CONFIRMATION_BECAUSE_DESTROY, temp->context);
+ }
+ IoTHubMessage_Destroy(temp->messageHandle);
+ free(temp);
+ }
+
+ /* Codes_SRS_IOTHUBCLIENT_LL_07_007: [ IoTHubClient_LL_Destroy shall iterate the device twin queues and destroy any remaining items. ] */
+ while ((unsend = DList_RemoveHeadList(&(handleData->iot_msg_queue))) != &(handleData->iot_msg_queue))
+ {
+ IOTHUB_DEVICE_TWIN* temp = containingRecord(unsend, IOTHUB_DEVICE_TWIN, entry);
+ device_twin_data_destroy(temp);
+ }
+ while ((unsend = DList_RemoveHeadList(&(handleData->iot_ack_queue))) != &(handleData->iot_ack_queue))
+ {
+ IOTHUB_DEVICE_TWIN* temp = containingRecord(unsend, IOTHUB_DEVICE_TWIN, entry);
+ device_twin_data_destroy(temp);
+ }
+
+ /*Codes_SRS_IOTHUBCLIENT_LL_17_011: [IoTHubClient_LL_Destroy shall free the resources allocated by IoTHubClient (if any).] */
+ tickcounter_destroy(handleData->tickCounter);
+#ifndef DONT_USE_UPLOADTOBLOB
+ IoTHubClient_LL_UploadToBlob_Destroy(handleData->uploadToBlobHandle);
+#endif
+ free(handleData);
+ }
+}
+
+/*Codes_SRS_IOTHUBCLIENT_LL_02_044: [ Messages already delivered to IoTHubClient_LL shall not have their timeouts modified by a new call to IoTHubClient_LL_SetOption. ]*/
+/*returns 0 on success, any other value is error*/
+static int attach_ms_timesOutAfter(IOTHUB_CLIENT_LL_HANDLE_DATA* handleData, IOTHUB_MESSAGE_LIST *newEntry)
+{
+ int result;
+ /*Codes_SRS_IOTHUBCLIENT_LL_02_043: [ Calling IoTHubClient_LL_SetOption with value set to "0" shall disable the timeout mechanism for all new messages. ]*/
+ if (handleData->currentMessageTimeout == 0)
+ {
+ newEntry->ms_timesOutAfter = 0; /*do not timeout*/
+ result = 0;
+ }
+ else
+ {
+ /*Codes_SRS_IOTHUBCLIENT_LL_02_039: [ "messageTimeout" - once IoTHubClient_LL_SendEventAsync is called the message shall timeout after value miliseconds. Value is a pointer to a uint64. ]*/
+ if (tickcounter_get_current_ms(handleData->tickCounter, &newEntry->ms_timesOutAfter) != 0)
+ {
+ result = __LINE__;
+ LogError("unable to get the current relative tickcount");
+ }
+ else
+ {
+ newEntry->ms_timesOutAfter += handleData->currentMessageTimeout;
+ result = 0;
+ }
+ }
+ return result;
+}
+
+IOTHUB_CLIENT_RESULT IoTHubClient_LL_SendEventAsync(IOTHUB_CLIENT_LL_HANDLE iotHubClientHandle, IOTHUB_MESSAGE_HANDLE eventMessageHandle, IOTHUB_CLIENT_EVENT_CONFIRMATION_CALLBACK eventConfirmationCallback, void* userContextCallback)
+{
+ IOTHUB_CLIENT_RESULT result;
+ /*Codes_SRS_IOTHUBCLIENT_LL_02_011: [IoTHubClient_LL_SendEventAsync shall fail and return IOTHUB_CLIENT_INVALID_ARG if parameter iotHubClientHandle or eventMessageHandle is NULL.]*/
+ if (
+ (iotHubClientHandle == NULL) ||
+ (eventMessageHandle == NULL) ||
+ /*Codes_SRS_IOTHUBCLIENT_LL_02_012: [IoTHubClient_LL_SendEventAsync shall fail and return IOTHUB_CLIENT_INVALID_ARG if parameter eventConfirmationCallback is NULL and userContextCallback is not NULL.] */
+ ((eventConfirmationCallback == NULL) && (userContextCallback != NULL))
+ )
+ {
+ result = IOTHUB_CLIENT_INVALID_ARG;
+ LOG_ERROR_RESULT;
+ }
+ else
+ {
+ IOTHUB_MESSAGE_LIST *newEntry = (IOTHUB_MESSAGE_LIST*)malloc(sizeof(IOTHUB_MESSAGE_LIST));
+ if (newEntry == NULL)
+ {
+ result = IOTHUB_CLIENT_ERROR;
+ LOG_ERROR_RESULT;
+ }
+ else
+ {
+ IOTHUB_CLIENT_LL_HANDLE_DATA* handleData = (IOTHUB_CLIENT_LL_HANDLE_DATA*)iotHubClientHandle;
+
+ if (attach_ms_timesOutAfter(handleData, newEntry) != 0)
+ {
+ result = IOTHUB_CLIENT_ERROR;
+ LOG_ERROR_RESULT;
+ free(newEntry);
+ }
+ else
+ {
+ /*Codes_SRS_IOTHUBCLIENT_LL_02_013: [IoTHubClient_SendEventAsync shall add the DLIST waitingToSend a new record cloning the information from eventMessageHandle, eventConfirmationCallback, userContextCallback.]*/
+ if ((newEntry->messageHandle = IoTHubMessage_Clone(eventMessageHandle)) == NULL)
+ {
+ /*Codes_SRS_IOTHUBCLIENT_LL_02_014: [If cloning and/or adding the information fails for any reason, IoTHubClient_LL_SendEventAsync shall fail and return IOTHUB_CLIENT_ERROR.] */
+ result = IOTHUB_CLIENT_ERROR;
+ free(newEntry);
+ LOG_ERROR_RESULT;
+ }
+ else
+ {
+ /*Codes_SRS_IOTHUBCLIENT_LL_02_013: [IoTHubClient_SendEventAsync shall add the DLIST waitingToSend a new record cloning the information from eventMessageHandle, eventConfirmationCallback, userContextCallback.]*/
+ newEntry->callback = eventConfirmationCallback;
+ newEntry->context = userContextCallback;
+ DList_InsertTailList(&(iotHubClientHandle->waitingToSend), &(newEntry->entry));
+ /*Codes_SRS_IOTHUBCLIENT_LL_02_015: [Otherwise IoTHubClient_LL_SendEventAsync shall succeed and return IOTHUB_CLIENT_OK.] */
+ result = IOTHUB_CLIENT_OK;
+ }
+ }
+ }
+ }
+ return result;
+}
+
+IOTHUB_CLIENT_RESULT IoTHubClient_LL_SetMessageCallback(IOTHUB_CLIENT_LL_HANDLE iotHubClientHandle, IOTHUB_CLIENT_MESSAGE_CALLBACK_ASYNC messageCallback, void* userContextCallback)
+{
+ IOTHUB_CLIENT_RESULT result;
+ /*Codes_SRS_IOTHUBCLIENT_LL_02_016: [IoTHubClient_LL_SetMessageCallback shall fail and return IOTHUB_CLIENT_INVALID_ARG if parameter iotHubClientHandle is NULL.] */
+ if (iotHubClientHandle == NULL)
+ {
+ result = IOTHUB_CLIENT_INVALID_ARG;
+ LOG_ERROR_RESULT;
+ }
+ else
+ {
+ IOTHUB_CLIENT_LL_HANDLE_DATA* handleData = (IOTHUB_CLIENT_LL_HANDLE_DATA*)iotHubClientHandle;
+ if (messageCallback == NULL)
+ {
+ /*Codes_SRS_IOTHUBCLIENT_LL_02_019: [If parameter messageCallback is NULL then IoTHubClient_LL_SetMessageCallback shall call the underlying layer's _Unsubscribe function and return IOTHUB_CLIENT_OK.] */
+ handleData->IoTHubTransport_Unsubscribe(handleData->deviceHandle);
+ handleData->messageCallback = NULL;
+ handleData->messageUserContextCallback = NULL;
+ result = IOTHUB_CLIENT_OK;
+ }
+ else
+ {
+ /*Codes_SRS_IOTHUBCLIENT_LL_02_017: [If parameter messageCallback is non-NULL then IoTHubClient_LL_SetMessageCallback shall call the underlying layer's _Subscribe function.]*/
+ if (handleData->IoTHubTransport_Subscribe(handleData->deviceHandle) == 0)
+ {
+ handleData->messageCallback = messageCallback;
+ handleData->messageUserContextCallback = userContextCallback;
+ result = IOTHUB_CLIENT_OK;
+ }
+ else
+ {
+ handleData->messageCallback = NULL;
+ handleData->messageUserContextCallback = NULL;
+ /*Codes_SRS_IOTHUBCLIENT_LL_02_018: [If the underlying layer's _Subscribe function fails, then IoTHubClient_LL_SetMessageCallback shall fail and return IOTHUB_CLIENT_ERROR. Otherwise IoTHubClient_LL_SetMessageCallback shall succeed and return IOTHUB_CLIENT_OK.]*/
+ result = IOTHUB_CLIENT_ERROR;
+ }
+ }
+ }
+
+ return result;
+}
+
+static void DoTimeouts(IOTHUB_CLIENT_LL_HANDLE_DATA* handleData)
+{
+ uint64_t nowTick;
+ if (tickcounter_get_current_ms(handleData->tickCounter, &nowTick) != 0)
+ {
+ LogError("unable to get the current ms, timeouts will not be processed");
+ }
+ else
+ {
+ DLIST_ENTRY* currentItemInWaitingToSend = handleData->waitingToSend.Flink;
+ while (currentItemInWaitingToSend != &(handleData->waitingToSend)) /*while we are not at the end of the list*/
+ {
+ IOTHUB_MESSAGE_LIST* fullEntry = containingRecord(currentItemInWaitingToSend, IOTHUB_MESSAGE_LIST, entry);
+ /*Codes_SRS_IOTHUBCLIENT_LL_02_041: [ If more than value miliseconds have passed since the call to IoTHubClient_LL_SendEventAsync then the message callback shall be called with a status code of IOTHUB_CLIENT_CONFIRMATION_TIMEOUT. ]*/
+ if ((fullEntry->ms_timesOutAfter != 0) && (fullEntry->ms_timesOutAfter < nowTick))
+ {
+ PDLIST_ENTRY theNext = currentItemInWaitingToSend->Flink; /*need to save the next item, because the below operations are destructive*/
+ DList_RemoveEntryList(currentItemInWaitingToSend);
+ if (fullEntry->callback != NULL)
+ {
+ fullEntry->callback(IOTHUB_CLIENT_CONFIRMATION_MESSAGE_TIMEOUT, fullEntry->context);
+ }
+ IoTHubMessage_Destroy(fullEntry->messageHandle); /*because it has been cloned*/
+ free(fullEntry);
+ currentItemInWaitingToSend = theNext;
+ }
+ else
+ {
+ currentItemInWaitingToSend = currentItemInWaitingToSend->Flink;
+ }
+ }
+ }
+}
+
+void IoTHubClient_LL_DoWork(IOTHUB_CLIENT_LL_HANDLE iotHubClientHandle)
+{
+ /*Codes_SRS_IOTHUBCLIENT_LL_02_020: [If parameter iotHubClientHandle is NULL then IoTHubClient_LL_DoWork shall not perform any action.] */
+ if (iotHubClientHandle != NULL)
+ {
+ IOTHUB_CLIENT_LL_HANDLE_DATA* handleData = (IOTHUB_CLIENT_LL_HANDLE_DATA*)iotHubClientHandle;
+ DoTimeouts(handleData);
+
+ /*Codes_SRS_IOTHUBCLIENT_LL_07_008: [ IoTHubClient_LL_DoWork shall iterate the message queue and execute the underlying transports IoTHubTransport_ProcessItem function for each item. ] */
+ DLIST_ENTRY* client_item = handleData->iot_msg_queue.Flink;
+ while (client_item != &(handleData->iot_msg_queue)) /*while we are not at the end of the list*/
+ {
+ PDLIST_ENTRY next_item = client_item->Flink;
+
+ IOTHUB_DEVICE_TWIN* queue_data = containingRecord(client_item, IOTHUB_DEVICE_TWIN, entry);
+ IOTHUB_IDENTITY_INFO identity_info;
+ identity_info.device_twin = queue_data;
+ IOTHUB_PROCESS_ITEM_RESULT process_results = handleData->IoTHubTransport_ProcessItem(handleData->transportHandle, IOTHUB_TYPE_DEVICE_TWIN, &identity_info);
+ if (process_results == IOTHUB_PROCESS_CONTINUE || process_results == IOTHUB_PROCESS_NOT_CONNECTED)
+ {
+ /*Codes_SRS_IOTHUBCLIENT_LL_07_010: [ If 'IoTHubTransport_ProcessItem' returns IOTHUB_PROCESS_CONTINUE or IOTHUB_PROCESS_NOT_CONNECTED IoTHubClient_LL_DoWork shall continue on to call the underlaying layer's _DoWork function. ]*/
+ break;
+ }
+ else
+ {
+ DList_RemoveEntryList(client_item);
+ if (process_results == IOTHUB_PROCESS_OK)
+ {
+ /*Codes_SRS_IOTHUBCLIENT_LL_07_011: [ If 'IoTHubTransport_ProcessItem' returns IOTHUB_PROCESS_OK IoTHubClient_LL_DoWork shall add the IOTHUB_DEVICE_TWIN to the ack queue. ]*/
+ DList_InsertTailList(&(iotHubClientHandle->iot_ack_queue), &(queue_data->entry));
+ }
+ else
+ {
+ /*Codes_SRS_IOTHUBCLIENT_LL_07_012: [ If 'IoTHubTransport_ProcessItem' returns any other value IoTHubClient_LL_DoWork shall destroy the IOTHUB_DEVICE_TWIN item. ]*/
+ LogError("Failure queue processing item");
+ device_twin_data_destroy(queue_data);
+ }
+ }
+ // Move along to the next item
+ client_item = next_item;
+ }
+
+ /*Codes_SRS_IOTHUBCLIENT_LL_02_021: [Otherwise, IoTHubClient_LL_DoWork shall invoke the underlaying layer's _DoWork function.]*/
+ handleData->IoTHubTransport_DoWork(handleData->transportHandle, iotHubClientHandle);
+ }
+}
+
+IOTHUB_CLIENT_RESULT IoTHubClient_LL_GetSendStatus(IOTHUB_CLIENT_LL_HANDLE iotHubClientHandle, IOTHUB_CLIENT_STATUS *iotHubClientStatus)
+{
+ IOTHUB_CLIENT_RESULT result;
+
+ /* Codes_SRS_IOTHUBCLIENT_09_007: [IoTHubClient_GetSendStatus shall return IOTHUB_CLIENT_INVALID_ARG if called with NULL parameter] */
+ if (iotHubClientHandle == NULL || iotHubClientStatus == NULL)
+ {
+ result = IOTHUB_CLIENT_INVALID_ARG;
+ LOG_ERROR_RESULT;
+ }
+ else
+ {
+ IOTHUB_CLIENT_LL_HANDLE_DATA* handleData = (IOTHUB_CLIENT_LL_HANDLE_DATA*)iotHubClientHandle;
+
+ /* Codes_SRS_IOTHUBCLIENT_09_008: [IoTHubClient_GetSendStatus shall return IOTHUB_CLIENT_OK and status IOTHUB_CLIENT_SEND_STATUS_IDLE if there is currently no items to be sent] */
+ /* Codes_SRS_IOTHUBCLIENT_09_009: [IoTHubClient_GetSendStatus shall return IOTHUB_CLIENT_OK and status IOTHUB_CLIENT_SEND_STATUS_BUSY if there are currently items to be sent] */
+ result = handleData->IoTHubTransport_GetSendStatus(handleData->deviceHandle, iotHubClientStatus);
+ }
+
+ return result;
+}
+
+void IoTHubClient_LL_SendComplete(IOTHUB_CLIENT_LL_HANDLE handle, PDLIST_ENTRY completed, IOTHUB_CLIENT_CONFIRMATION_RESULT result)
+{
+ /*Codes_SRS_IOTHUBCLIENT_LL_02_022: [If parameter completed is NULL, or parameter handle is NULL then IoTHubClient_LL_SendBatch shall return.]*/
+ if (
+ (handle == NULL) ||
+ (completed == NULL)
+ )
+ {
+ /*"shall return"*/
+ LogError("invalid arg");
+ }
+ else
+ {
+ /*Codes_SRS_IOTHUBCLIENT_LL_02_027: [If parameter result is IOTHUB_CLIENT_CONFIRMATION_ERROR then IoTHubClient_LL_SendComplete shall call all the non-NULL callbacks with the result parameter set to IOTHUB_CLIENT_CONFIRMATION_ERROR and the context set to the context passed originally in the SendEventAsync call.] */
+ /*Codes_SRS_IOTHUBCLIENT_LL_02_025: [If parameter result is IOTHUB_CLIENT_CONFIRMATION_OK then IoTHubClient_LL_SendComplete shall call all the non-NULL callbacks with the result parameter set to IOTHUB_CLIENT_CONFIRMATION_OK and the context set to the context passed originally in the SendEventAsync call.]*/
+ PDLIST_ENTRY oldest;
+ while ((oldest = DList_RemoveHeadList(completed)) != completed)
+ {
+ IOTHUB_MESSAGE_LIST* messageList = (IOTHUB_MESSAGE_LIST*)containingRecord(oldest, IOTHUB_MESSAGE_LIST, entry);
+ /*Codes_SRS_IOTHUBCLIENT_LL_02_026: [If any callback is NULL then there shall not be a callback call.]*/
+ if (messageList->callback != NULL)
+ {
+ messageList->callback(result, messageList->context);
+ }
+ IoTHubMessage_Destroy(messageList->messageHandle);
+ free(messageList);
+ }
+ }
+}
+
+int IoTHubClient_LL_DeviceMethodComplete(IOTHUB_CLIENT_LL_HANDLE handle, const char* method_name, const unsigned char* payLoad, size_t size, BUFFER_HANDLE response)
+{
+ int result;
+ if (handle == NULL || response == NULL)
+ {
+ /* Codes_SRS_IOTHUBCLIENT_LL_07_017: [ If handle or response is NULL then IoTHubClient_LL_DeviceMethodComplete shall return 500. ] */
+ LogError("Invalid argument handle=%p", handle);
+ result = 500;
+ }
+ else
+ {
+ /* Codes_SRS_IOTHUBCLIENT_LL_07_018: [ If deviceMethodCallback is not NULL IoTHubClient_LL_DeviceMethodComplete shall execute deviceMethodCallback and return the status. ] */
+ IOTHUB_CLIENT_LL_HANDLE_DATA* handleData = (IOTHUB_CLIENT_LL_HANDLE_DATA*)handle;
+ if (handleData->deviceMethodCallback)
+ {
+ unsigned char* payload_resp = NULL;
+ size_t resp_size = 0;
+ result = handleData->deviceMethodCallback(method_name, payLoad, size, &payload_resp, &resp_size, handleData->deviceMethodUserContextCallback);
+ /* Codes_SRS_IOTHUBCLIENT_LL_07_020: [ deviceMethodCallback shall buil the BUFFER_HANDLE with the response payload from the IOTHUB_CLIENT_DEVICE_METHOD_CALLBACK_ASYNC callback. ] */
+ if (payload_resp != NULL && resp_size > 0)
+ {
+ if (BUFFER_build(response, payload_resp, resp_size) != 0)
+ {
+ result = 500;
+ }
+ }
+ if (payload_resp != NULL)
+ {
+ free(payload_resp);
+ }
+ }
+ else
+ {
+ /* Codes_SRS_IOTHUBCLIENT_LL_07_019: [ If deviceMethodCallback is NULL IoTHubClient_LL_DeviceMethodComplete shall return 404. ] */
+ result = 404;
+ }
+ }
+ return result;
+}
+
+void IoTHubClient_LL_RetrievePropertyComplete(IOTHUB_CLIENT_LL_HANDLE handle, DEVICE_TWIN_UPDATE_STATE update_state, const unsigned char* payLoad, size_t size)
+{
+ if (handle == NULL)
+ {
+ /* Codes_SRS_IOTHUBCLIENT_LL_07_013: [ If handle is NULL then IoTHubClient_LL_RetrievePropertyComplete shall do nothing.] */
+ LogError("Invalid argument handle=%p", handle);
+ }
+ else
+ {
+ IOTHUB_CLIENT_LL_HANDLE_DATA* handleData = (IOTHUB_CLIENT_LL_HANDLE_DATA*)handle;
+ /* Codes_SRS_IOTHUBCLIENT_LL_07_014: [ If deviceTwinCallback is NULL then IoTHubClient_LL_RetrievePropertyComplete shall do nothing.] */
+ if (handleData->deviceTwinCallback)
+ {
+ /* Codes_SRS_IOTHUBCLIENT_LL_07_015: [ If the the update_state parameter is DEVICE_TWIN_UPDATE_PARTIAL and a DEVICE_TWIN_UPDATE_COMPLETE has not been previously recieved then IoTHubClient_LL_RetrievePropertyComplete shall do nothing.] */
+ if (update_state == DEVICE_TWIN_UPDATE_COMPLETE)
+ {
+ handleData->complete_twin_update_encountered = true;
+ }
+ if (handleData->complete_twin_update_encountered)
+ {
+ /* Codes_SRS_IOTHUBCLIENT_LL_07_016: [ If deviceTwinCallback is set and DEVICE_TWIN_UPDATE_COMPLETE has been encountered then IoTHubClient_LL_RetrievePropertyComplete shall call deviceTwinCallback.] */
+ handleData->deviceTwinCallback(update_state, payLoad, size, handleData->deviceTwinContextCallback);
+ }
+ }
+ }
+}
+
+void IoTHubClient_LL_ReportedStateComplete(IOTHUB_CLIENT_LL_HANDLE handle, uint32_t item_id, int status_code)
+{
+ /* Codes_SRS_IOTHUBCLIENT_LL_07_002: [ if handle or queue_handle are NULL then IoTHubClient_LL_ReportedStateComplete shall do nothing. ] */
+ if (handle == NULL)
+ {
+ /*"shall return"*/
+ LogError("Invalid argument handle=%p", handle);
+ }
+ else
+ {
+ IOTHUB_CLIENT_LL_HANDLE_DATA* handleData = (IOTHUB_CLIENT_LL_HANDLE_DATA*)handle;
+
+ /* Codes_SRS_IOTHUBCLIENT_LL_07_003: [ IoTHubClient_LL_ReportedStateComplete shall enumerate through the IOTHUB_DEVICE_TWIN structures in queue_handle. ]*/
+ DLIST_ENTRY* client_item = handleData->iot_ack_queue.Flink;
+ while (client_item != &(handleData->iot_ack_queue)) /*while we are not at the end of the list*/
+ {
+ PDLIST_ENTRY next_item = client_item->Flink;
+ IOTHUB_DEVICE_TWIN* queue_data = containingRecord(client_item, IOTHUB_DEVICE_TWIN, entry);
+ if (queue_data->item_id == item_id)
+ {
+ if (queue_data->reported_state_callback != NULL)
+ {
+ queue_data->reported_state_callback(status_code, queue_data->context);
+ }
+ /*Codes_SRS_IOTHUBCLIENT_LL_07_009: [ IoTHubClient_LL_ReportedStateComplete shall remove the IOTHUB_DEVICE_TWIN item from the ack queue.]*/
+ DList_RemoveEntryList(client_item);
+ device_twin_data_destroy(queue_data);
+ break;
+ }
+ client_item = next_item;
+ }
+ }
+}
+
+IOTHUBMESSAGE_DISPOSITION_RESULT IoTHubClient_LL_MessageCallback(IOTHUB_CLIENT_LL_HANDLE handle, IOTHUB_MESSAGE_HANDLE message)
+{
+ int result;
+ /*Codes_SRS_IOTHUBCLIENT_LL_02_029: [If parameter handle is NULL then IoTHubClient_LL_MessageCallback shall return IOTHUBMESSAGE_ABANDONED.] */
+ if (handle == NULL)
+ {
+ LogError("invalid argument");
+ result = IOTHUBMESSAGE_ABANDONED;
+ }
+ else
+ {
+ IOTHUB_CLIENT_LL_HANDLE_DATA* handleData = (IOTHUB_CLIENT_LL_HANDLE_DATA*)handle;
+
+ /* Codes_SRS_IOTHUBCLIENT_LL_09_004: [IoTHubClient_LL_GetLastMessageReceiveTime shall return lastMessageReceiveTime in localtime] */
+ handleData->lastMessageReceiveTime = get_time(NULL);
+
+ /*Codes_SRS_IOTHUBCLIENT_LL_02_030: [IoTHubClient_LL_MessageCallback shall invoke the last callback function (the parameter messageCallback to IoTHubClient_LL_SetMessageCallback) passing the message and the passed userContextCallback.]*/
+ if (handleData->messageCallback != NULL)
+ {
+ result = handleData->messageCallback(message, handleData->messageUserContextCallback);
+ }
+ else
+ {
+ /*Codes_SRS_IOTHUBCLIENT_LL_02_032: [If the last callback function was NULL, then IoTHubClient_LL_MessageCallback shall return IOTHUBMESSAGE_ABANDONED.] */
+ LogError("user callback was NULL");
+ result = IOTHUBMESSAGE_ABANDONED;
+ }
+ }
+ /*Codes_SRS_IOTHUBCLIENT_LL_02_031: [Then IoTHubClient_LL_MessageCallback shall return what the user function returns.]*/
+ return (IOTHUBMESSAGE_DISPOSITION_RESULT) result;
+}
+
+void IotHubClient_LL_ConnectionStatusCallBack(IOTHUB_CLIENT_LL_HANDLE handle, IOTHUB_CLIENT_CONNECTION_STATUS status, IOTHUB_CLIENT_CONNECTION_STATUS_REASON reason)
+{
+ /*Codes_SRS_IOTHUBCLIENT_LL_25_113: [If parameter connectionStatus is NULL or parameter handle is NULL then IotHubClient_LL_ConnectionStatusCallBack shall return.]*/
+ if (handle == NULL)
+ {
+ /*"shall return"*/
+ LogError("invalid arg");
+ }
+ else
+ {
+ IOTHUB_CLIENT_LL_HANDLE_DATA* handleData = (IOTHUB_CLIENT_LL_HANDLE_DATA*)handle;
+
+ /*Codes_SRS_IOTHUBCLIENT_LL_25_114: [IotHubClient_LL_ConnectionStatusCallBack shall call non-callback set by the user from IoTHubClient_LL_SetConnectionStatusCallback passing the status, reason and the passed userContextCallback.]*/
+ if (handleData->conStatusCallback != NULL)
+ {
+ handleData->conStatusCallback(status, reason, handleData->conStatusUserContextCallback);
+ }
+ }
+
+}
+
+IOTHUB_CLIENT_RESULT IoTHubClient_LL_SetConnectionStatusCallback(IOTHUB_CLIENT_LL_HANDLE iotHubClientHandle, IOTHUB_CLIENT_CONNECTION_STATUS_CALLBACK connectionStatusCallback, void * userContextCallback)
+{
+ IOTHUB_CLIENT_RESULT result;
+ /*Codes_SRS_IOTHUBCLIENT_LL_25_111: [IoTHubClient_LL_SetConnectionStatusCallback shall return IOTHUB_CLIENT_INVALID_ARG if called with NULL parameter iotHubClientHandle**]** */
+ if (iotHubClientHandle == NULL)
+ {
+ result = IOTHUB_CLIENT_INVALID_ARG;
+ LOG_ERROR_RESULT;
+ }
+ else
+ {
+ IOTHUB_CLIENT_LL_HANDLE_DATA* handleData = (IOTHUB_CLIENT_LL_HANDLE_DATA*)iotHubClientHandle;
+ /*Codes_SRS_IOTHUBCLIENT_LL_25_112: [IoTHubClient_LL_SetConnectionStatusCallback shall return IOTHUB_CLIENT_OK and save the callback and userContext as a member of the handle.] */
+ handleData->conStatusCallback = connectionStatusCallback;
+ handleData->conStatusUserContextCallback = userContextCallback;
+ result = IOTHUB_CLIENT_OK;
+ }
+
+ return result;
+}
+
+IOTHUB_CLIENT_RESULT IoTHubClient_LL_SetRetryPolicy(IOTHUB_CLIENT_LL_HANDLE iotHubClientHandle, IOTHUB_CLIENT_RETRY_POLICY retryPolicy, size_t retryTimeoutLimitInSeconds)
+{
+ IOTHUB_CLIENT_RESULT result;
+ IOTHUB_CLIENT_LL_HANDLE_DATA* handleData = (IOTHUB_CLIENT_LL_HANDLE_DATA*)iotHubClientHandle;
+
+ /* Codes_SRS_IOTHUBCLIENT_LL_25_116: [**IoTHubClient_LL_SetRetryPolicy shall return IOTHUB_CLIENT_INVALID_ARG if called with NULL iotHubClientHandle]*/
+ if (handleData == NULL)
+ {
+ result = IOTHUB_CLIENT_INVALID_ARG;
+ LOG_ERROR_RESULT;
+ }
+ else
+ {
+ if (handleData->transportHandle == NULL)
+ {
+ result = IOTHUB_CLIENT_ERROR;
+ LOG_ERROR_RESULT;
+ }
+ else
+ {
+ if (handleData->IoTHubTransport_SetRetryPolicy(handleData->transportHandle, retryPolicy, retryTimeoutLimitInSeconds) != 0)
+ {
+ result = IOTHUB_CLIENT_ERROR;
+ LOG_ERROR_RESULT;
+ }
+ else
+ {
+ /*Codes_SRS_IOTHUBCLIENT_LL_25_118: [**IoTHubClient_LL_SetRetryPolicy shall save connection retry policies specified by the user to retryPolicy in struct IOTHUB_CLIENT_LL_HANDLE_DATA]*/
+ /*Codes_SRS_IOTHUBCLIENT_LL_25_119: [**IoTHubClient_LL_SetRetryPolicy shall save retryTimeoutLimitInSeconds in seconds to retryTimeout in struct IOTHUB_CLIENT_LL_HANDLE_DATA]*/
+ handleData->retryPolicy = retryPolicy;
+ handleData->retryTimeoutLimitInSeconds = retryTimeoutLimitInSeconds;
+ result = IOTHUB_CLIENT_OK;
+ }
+ }
+ }
+ return result;
+}
+
+IOTHUB_CLIENT_RESULT IoTHubClient_LL_GetRetryPolicy(IOTHUB_CLIENT_LL_HANDLE iotHubClientHandle, IOTHUB_CLIENT_RETRY_POLICY* retryPolicy, size_t* retryTimeoutLimitInSeconds)
+{
+ IOTHUB_CLIENT_RESULT result = IOTHUB_CLIENT_OK;
+ IOTHUB_CLIENT_LL_HANDLE_DATA* handleData = (IOTHUB_CLIENT_LL_HANDLE_DATA*)iotHubClientHandle;
+
+ /* Codes_SRS_IOTHUBCLIENT_LL_09_001: [IoTHubClient_LL_GetLastMessageReceiveTime shall return IOTHUB_CLIENT_INVALID_ARG if any of the arguments is NULL] */
+ if (handleData == NULL || retryPolicy == NULL || retryTimeoutLimitInSeconds == NULL)
+ {
+ result = IOTHUB_CLIENT_INVALID_ARG;
+ LOG_ERROR_RESULT;
+ }
+ else
+ {
+ *retryPolicy = handleData->retryPolicy;
+ *retryTimeoutLimitInSeconds = handleData->retryTimeoutLimitInSeconds;
+ result = IOTHUB_CLIENT_OK;
+ }
+
+ return result;
+}
+
+IOTHUB_CLIENT_RESULT IoTHubClient_LL_GetLastMessageReceiveTime(IOTHUB_CLIENT_LL_HANDLE iotHubClientHandle, time_t* lastMessageReceiveTime)
+{
+ IOTHUB_CLIENT_RESULT result;
+ IOTHUB_CLIENT_LL_HANDLE_DATA* handleData = (IOTHUB_CLIENT_LL_HANDLE_DATA*)iotHubClientHandle;
+
+ /* Codes_SRS_IOTHUBCLIENT_LL_09_001: [IoTHubClient_LL_GetLastMessageReceiveTime shall return IOTHUB_CLIENT_INVALID_ARG if any of the arguments is NULL] */
+ if (handleData == NULL || lastMessageReceiveTime == NULL)
+ {
+ result = IOTHUB_CLIENT_INVALID_ARG;
+ LOG_ERROR_RESULT;
+ }
+ else
+ {
+ /* Codes_SRS_IOTHUBCLIENT_LL_09_002: [IoTHubClient_LL_GetLastMessageReceiveTime shall return IOTHUB_CLIENT_INDEFINITE_TIME - and not set 'lastMessageReceiveTime' - if it is unable to provide the time for the last commands] */
+ if (handleData->lastMessageReceiveTime == INDEFINITE_TIME)
+ {
+ result = IOTHUB_CLIENT_INDEFINITE_TIME;
+ LOG_ERROR_RESULT;
+ }
+ else
+ {
+ /* Codes_SRS_IOTHUBCLIENT_LL_09_003: [IoTHubClient_LL_GetLastMessageReceiveTime shall return IOTHUB_CLIENT_OK if it wrote in the lastMessageReceiveTime the time when the last command was received] */
+ /* Codes_SRS_IOTHUBCLIENT_LL_09_004: [IoTHubClient_LL_GetLastMessageReceiveTime shall return lastMessageReceiveTime in localtime] */
+ *lastMessageReceiveTime = handleData->lastMessageReceiveTime;
+ result = IOTHUB_CLIENT_OK;
+ }
+ }
+
+ return result;
+}
+
+IOTHUB_CLIENT_RESULT IoTHubClient_LL_SetOption(IOTHUB_CLIENT_LL_HANDLE iotHubClientHandle, const char* optionName, const void* value)
+{
+
+ IOTHUB_CLIENT_RESULT result;
+ /*Codes_SRS_IOTHUBCLIENT_LL_02_034: [If iotHubClientHandle is NULL then IoTHubClient_LL_SetOption shall return IOTHUB_CLIENT_INVALID_ARG.]*/
+ /*Codes_SRS_IOTHUBCLIENT_LL_02_035: [If optionName is NULL then IoTHubClient_LL_SetOption shall return IOTHUB_CLIENT_INVALID_ARG.] */
+ /*Codes_SRS_IOTHUBCLIENT_LL_02_036: [If value is NULL then IoTHubClient_LL_SetOption shall return IOTHUB_CLIENT_INVALID_ARG.] */
+ if (
+ (iotHubClientHandle == NULL) ||
+ (optionName == NULL) ||
+ (value == NULL)
+ )
+ {
+ result = IOTHUB_CLIENT_INVALID_ARG;
+ LogError("invalid argument (NULL)");
+ }
+ else
+ {
+ IOTHUB_CLIENT_LL_HANDLE_DATA* handleData = (IOTHUB_CLIENT_LL_HANDLE_DATA*)iotHubClientHandle;
+
+ /*Codes_SRS_IOTHUBCLIENT_LL_02_039: [ "messageTimeout" - once IoTHubClient_LL_SendEventAsync is called the message shall timeout after value miliseconds. Value is a pointer to a uint64. ]*/
+ if (strcmp(optionName, "messageTimeout") == 0)
+ {
+ /*this is an option handled by IoTHubClient_LL*/
+ /*Codes_SRS_IOTHUBCLIENT_LL_02_043: [ Calling IoTHubClient_LL_SetOption with value set to "0" shall disable the timeout mechanism for all new messages. ]*/
+ handleData->currentMessageTimeout = *(const uint64_t*)value;
+ result = IOTHUB_CLIENT_OK;
+ }
+ else
+ {
+
+ /*Codes_SRS_IOTHUBCLIENT_LL_02_099: [ IoTHubClient_LL_SetOption shall return according to the table below ]*/
+ IOTHUB_CLIENT_RESULT uploadToBlob_result;
+#ifndef DONT_USE_UPLOADTOBLOB
+ uploadToBlob_result = IoTHubClient_LL_UploadToBlob_SetOption(handleData->uploadToBlobHandle, optionName, value);
+ if(uploadToBlob_result == IOTHUB_CLIENT_ERROR)
+ {
+ LogError("unable to IoTHubClient_LL_UploadToBlob_SetOption");
+ result = IOTHUB_CLIENT_ERROR;
+ }
+#else
+ uploadToBlob_result = IOTHUB_CLIENT_INVALID_ARG; /*harmless value (IOTHUB_CLIENT_INVALID_ARG)in the case when uploadtoblob is not compiled in, otherwise whatever IoTHubClient_LL_UploadToBlob_SetOption returned*/
+#endif /*DONT_USE_UPLOADTOBLOB*/
+
+
+ result =
+ /*based on uploadToBlob_result value this is what happens:*/
+ /*IOTHUB_CLIENT_INVALID_ARG always returns what IoTHubTransport_SetOption returns*/
+ /*IOTHUB_CLIENT_ERROR always returns IOTHUB_CLIENT_ERROR */
+ /*IOTHUB_CLIENT_OK returns OK
+ IOTHUB_CLIENT_OK if IoTHubTransport_SetOption returns OK or INVALID_ARG
+ IOTHUB_CLIENT_ERROR if IoTHubTransport_SetOption returns ERROR*/
+
+ (uploadToBlob_result == IOTHUB_CLIENT_INVALID_ARG) ? handleData->IoTHubTransport_SetOption(handleData->transportHandle, optionName, value) :
+ (uploadToBlob_result == IOTHUB_CLIENT_ERROR) ? IOTHUB_CLIENT_ERROR :
+ (handleData->IoTHubTransport_SetOption(handleData->transportHandle, optionName, value) == IOTHUB_CLIENT_ERROR) ? IOTHUB_CLIENT_ERROR : IOTHUB_CLIENT_OK;
+
+ if (result != IOTHUB_CLIENT_OK)
+ {
+ LogError("underlying transport failed, returned = %s", ENUM_TO_STRING(IOTHUB_CLIENT_RESULT, result));
+ }
+ }
+ }
+ return result;
+}
+
+IOTHUB_CLIENT_RESULT IoTHubClient_LL_SetDeviceTwinCallback(IOTHUB_CLIENT_LL_HANDLE iotHubClientHandle, IOTHUB_CLIENT_DEVICE_TWIN_CALLBACK deviceTwinCallback, void* userContextCallback)
+{
+ IOTHUB_CLIENT_RESULT result;
+ /* Codes_SRS_IOTHUBCLIENT_LL_10_001: [ IoTHubClient_LL_SetDeviceTwinCallback shall fail and return IOTHUB_CLIENT_INVALID_ARG if parameter iotHubClientHandle is NULL.] */
+ if (iotHubClientHandle == NULL)
+ {
+ result = IOTHUB_CLIENT_INVALID_ARG;
+ LogError("Invalid argument specified iothubClientHandle=%p", iotHubClientHandle);
+ }
+ else
+ {
+ IOTHUB_CLIENT_LL_HANDLE_DATA* handleData = (IOTHUB_CLIENT_LL_HANDLE_DATA*)iotHubClientHandle;
+ if (deviceTwinCallback == NULL)
+ {
+ /* Codes_SRS_IOTHUBCLIENT_LL_10_006: [ If deviceTwinCallback is NULL, then IoTHubClient_LL_SetDeviceTwinCallback shall call the underlying layer's _Unsubscribe function and return IOTHUB_CLIENT_OK.] */
+ handleData->IoTHubTransport_Unsubscribe_DeviceTwin(handleData->transportHandle);
+ handleData->deviceTwinCallback = NULL;
+ result = IOTHUB_CLIENT_OK;
+ }
+ else
+ {
+ /* Codes_SRS_IOTHUBCLIENT_LL_10_002: [ If deviceTwinCallback is not NULL, then IoTHubClient_LL_SetDeviceTwinCallback shall call the underlying layer's _Subscribe function.] */
+ if (handleData->IoTHubTransport_Subscribe_DeviceTwin(handleData->transportHandle) == 0)
+ {
+ handleData->deviceTwinCallback = deviceTwinCallback;
+ handleData->deviceTwinContextCallback = userContextCallback;
+ /* Codes_SRS_IOTHUBCLIENT_LL_10_005: [ Otherwise IoTHubClient_LL_SetDeviceTwinCallback shall succeed and return IOTHUB_CLIENT_OK.] */
+ result = IOTHUB_CLIENT_OK;
+ }
+ else
+ {
+ /* Codes_SRS_IOTHUBCLIENT_LL_10_003: [ If the underlying layer's _Subscribe function fails, then IoTHubClient_LL_SetDeviceTwinCallback shall fail and return IOTHUB_CLIENT_ERROR.] */
+ result = IOTHUB_CLIENT_ERROR;
+ }
+ }
+ }
+ return result;
+}
+
+IOTHUB_CLIENT_RESULT IoTHubClient_LL_SendReportedState(IOTHUB_CLIENT_LL_HANDLE iotHubClientHandle, const unsigned char* reportedState, size_t size, IOTHUB_CLIENT_REPORTED_STATE_CALLBACK reportedStateCallback, void* userContextCallback)
+{
+ IOTHUB_CLIENT_RESULT result;
+ /* Codes_SRS_IOTHUBCLIENT_LL_10_012: [ IoTHubClient_LL_SendReportedState shall fail and return IOTHUB_CLIENT_INVALID_ARG if parameter iotHubClientHandle is NULL. ] */
+ /* Codes_SRS_IOTHUBCLIENT_LL_10_013: [ IoTHubClient_LL_SendReportedState shall fail and return IOTHUB_CLIENT_INVALID_ARG if parameter reportedState is NULL] */
+ /* Codes_SRS_IOTHUBCLIENT_LL_07_005: [ IoTHubClient_LL_SendReportedState shall fail and return IOTHUB_CLIENT_INVALID_ARG if parameter size is equal to 0. ] */
+ if (iotHubClientHandle == NULL || (reportedState == NULL || size == 0) )
+ {
+ result = IOTHUB_CLIENT_INVALID_ARG;
+ LogError("Invalid argument specified iothubClientHandle=%p, reportedState=%p, size=%zu", iotHubClientHandle, reportedState, size);
+ }
+ else
+ {
+ IOTHUB_CLIENT_LL_HANDLE_DATA* handleData = (IOTHUB_CLIENT_LL_HANDLE_DATA*)iotHubClientHandle;
+ /* Codes_SRS_IOTHUBCLIENT_LL_10_014: [IoTHubClient_LL_SendReportedState shall construct and queue the reported a Device_Twin structure for transmition by the underlying transport.] */
+ IOTHUB_DEVICE_TWIN* client_data = dev_twin_data_create(handleData, get_next_item_id(handleData), reportedState, size, reportedStateCallback, userContextCallback);
+ if (client_data == NULL)
+ {
+ /* Codes_SRS_IOTHUBCLIENT_LL_10_015: [If any error is encountered IoTHubClient_LL_SendReportedState shall return IOTHUB_CLIENT_ERROR.] */
+ LogError("Failure constructing device twin data");
+ result = IOTHUB_CLIENT_ERROR;
+ }
+ else
+ {
+ if (handleData->IoTHubTransport_Subscribe_DeviceTwin(handleData->transportHandle) != 0)
+ {
+ LogError("Failure adding device twin data to queue");
+ device_twin_data_destroy(client_data);
+ result = IOTHUB_CLIENT_ERROR;
+ }
+ else
+ {
+ /* Codes_SRS_IOTHUBCLIENT_LL_07_001: [ IoTHubClient_LL_SendReportedState shall queue the constructed reportedState data to be consumed by the targeted transport. ] */
+ DList_InsertTailList(&(iotHubClientHandle->iot_msg_queue), &(client_data->entry));
+
+ /* Codes_SRS_IOTHUBCLIENT_LL_10_016: [ Otherwise IoTHubClient_LL_SendReportedState shall succeed and return IOTHUB_CLIENT_OK.] */
+ result = IOTHUB_CLIENT_OK;
+ }
+ }
+ }
+ return result;
+}
+
+IOTHUB_CLIENT_RESULT IoTHubClient_LL_SetDeviceMethodCallback(IOTHUB_CLIENT_LL_HANDLE iotHubClientHandle, IOTHUB_CLIENT_DEVICE_METHOD_CALLBACK_ASYNC deviceMethodCallback, void* userContextCallback)
+{
+ IOTHUB_CLIENT_RESULT result;
+
+ /*Codes_SRS_IOTHUBCLIENT_LL_12_017: [ IoTHubClient_LL_SetDeviceMethodCallback shall fail and return IOTHUB_CLIENT_INVALID_ARG if parameter iotHubClientHandle is NULL. ] */
+ if (iotHubClientHandle == NULL)
+ {
+ result = IOTHUB_CLIENT_INVALID_ARG;
+ LOG_ERROR_RESULT;
+ }
+ else
+ {
+ IOTHUB_CLIENT_LL_HANDLE_DATA* handleData = (IOTHUB_CLIENT_LL_HANDLE_DATA*)iotHubClientHandle;
+ if (deviceMethodCallback == NULL)
+ {
+ /*Codes_SRS_IOTHUBCLIENT_LL_12_018: [If deviceMethodCallback is NULL, then IoTHubClient_LL_SetDeviceMethodCallback shall call the underlying layer's IoTHubTransport_Unsubscribe_DeviceMethod function and return IOTHUB_CLIENT_OK. ] */
+ /*Codes_SRS_IOTHUBCLIENT_LL_12_022: [ Otherwise IoTHubClient_LL_SetDeviceMethodCallback shall succeed and return IOTHUB_CLIENT_OK. ]*/
+ handleData->IoTHubTransport_Unsubscribe_DeviceMethod(handleData->transportHandle);
+ handleData->deviceMethodCallback = NULL;
+ result = IOTHUB_CLIENT_OK;
+ }
+ else
+ {
+ /*Codes_SRS_IOTHUBCLIENT_LL_12_019: [ If deviceMethodCallback is not NULL, then IoTHubClient_LL_SetDeviceMethodCallback shall call the underlying layer's IoTHubTransport_Subscribe_DeviceMethod function. ]*/
+ if (handleData->IoTHubTransport_Subscribe_DeviceMethod(handleData->deviceHandle) == 0)
+ {
+ /*Codes_SRS_IOTHUBCLIENT_LL_12_022: [ Otherwise IoTHubClient_LL_SetDeviceMethodCallback shall succeed and return IOTHUB_CLIENT_OK. ]*/
+ handleData->deviceMethodCallback = deviceMethodCallback;
+ handleData->deviceMethodUserContextCallback = userContextCallback;
+ result = IOTHUB_CLIENT_OK;
+ }
+ else
+ {
+ /*Codes_SRS_IOTHUBCLIENT_LL_12_020: [ If the underlying layer's IoTHubTransport_Subscribe_DeviceMethod function fails, then IoTHubClient_LL_SetDeviceMethodCallback shall fail and return IOTHUB_CLIENT_ERROR. ]*/
+ /*Codes_SRS_IOTHUBCLIENT_LL_12_021: [ If adding the information fails for any reason, IoTHubClient_LL_SetDeviceMethodCallback shall fail and return IOTHUB_CLIENT_ERROR. ]*/
+ result = IOTHUB_CLIENT_ERROR;
+ }
+ }
+ }
+ return result;
+}
+
+#ifndef DONT_USE_UPLOADTOBLOB
+IOTHUB_CLIENT_RESULT IoTHubClient_LL_UploadToBlob(IOTHUB_CLIENT_LL_HANDLE iotHubClientHandle, const char* destinationFileName, const unsigned char* source, size_t size)
+{
+ IOTHUB_CLIENT_RESULT result;
+ /*Codes_SRS_IOTHUBCLIENT_LL_02_061: [ If iotHubClientHandle is NULL then IoTHubClient_LL_UploadToBlob shall fail and return IOTHUB_CLIENT_INVALID_ARG. ]*/
+ /*Codes_SRS_IOTHUBCLIENT_LL_02_062: [ If destinationFileName is NULL then IoTHubClient_LL_UploadToBlob shall fail and return IOTHUB_CLIENT_INVALID_ARG. ]*/
+ if (
+ (iotHubClientHandle == NULL) ||
+ (destinationFileName == NULL) ||
+ ((source == NULL) && (size >0))
+ )
+ {
+ LogError("invalid parameters IOTHUB_CLIENT_LL_HANDLE iotHubClientHandle=%p, const char* destinationFileName=%s, const unsigned char* source=%p, size_t size=%zu", iotHubClientHandle, destinationFileName, source, size);
+ result = IOTHUB_CLIENT_INVALID_ARG;
+ }
+ else
+ {
+ result = IoTHubClient_LL_UploadToBlob_Impl(iotHubClientHandle->uploadToBlobHandle, destinationFileName, source, size);
+ }
+ return result;
+}
+#endif