Azure IoT / serializer

A modelling and serializer library for Microsoft Azure IoTHub client applications

Dependents:   sht15_remote_monitoring f767zi_mqtt remote_monitoring simplesample_amqp ... more

This library implements a serializer library to be used in projects involving Microsoft Azure IoT Hub connectivity. The code is replicated from https://github.com/Azure/azure-iot-sdks

datapublisher.c@4:233dd7616d73, 2015-10-22 (annotated)

Committer:
AzureIoTClient
Date:
Thu Oct 22 18:33:28 2015 -0700
Revision:
4:233dd7616d73
Child:
10:c2aee3965a83
v1.0.0-preview.4

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AzureIoTClient 4:233dd7616d73 1 // Copyright (c) Microsoft. All rights reserved.
AzureIoTClient 4:233dd7616d73 2 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
AzureIoTClient 4:233dd7616d73 3
AzureIoTClient 4:233dd7616d73 4 #include <stdlib.h>
AzureIoTClient 4:233dd7616d73 5 #ifdef _CRTDBG_MAP_ALLOC
AzureIoTClient 4:233dd7616d73 6 #include <crtdbg.h>
AzureIoTClient 4:233dd7616d73 7 #endif
AzureIoTClient 4:233dd7616d73 8 #include "gballoc.h"
AzureIoTClient 4:233dd7616d73 9
AzureIoTClient 4:233dd7616d73 10 #include <stdbool.h>
AzureIoTClient 4:233dd7616d73 11 #include "datapublisher.h"
AzureIoTClient 4:233dd7616d73 12 #include "jsonencoder.h"
AzureIoTClient 4:233dd7616d73 13 #include "datamarshaller.h"
AzureIoTClient 4:233dd7616d73 14 #include "agenttypesystem.h"
AzureIoTClient 4:233dd7616d73 15 #include "schema.h"
AzureIoTClient 4:233dd7616d73 16 #include "crt_abstractions.h"
AzureIoTClient 4:233dd7616d73 17 #include "iot_logging.h"
AzureIoTClient 4:233dd7616d73 18
AzureIoTClient 4:233dd7616d73 19 DEFINE_ENUM_STRINGS(DATA_PUBLISHER_RESULT, DATA_PUBLISHER_RESULT_VALUES)
AzureIoTClient 4:233dd7616d73 20
AzureIoTClient 4:233dd7616d73 21 #define LOG_DATA_PUBLISHER_ERROR \
AzureIoTClient 4:233dd7616d73 22 LogError("(result = %s)\r\n", ENUM_TO_STRING(DATA_PUBLISHER_RESULT, result))
AzureIoTClient 4:233dd7616d73 23
AzureIoTClient 4:233dd7616d73 24 #define DEFAULT_MAX_BUFFER_SIZE 10240
AzureIoTClient 4:233dd7616d73 25 /* Codes_SRS_DATA_PUBLISHER_99_066:[ A single value shall be used by all instances of DataPublisher.] */
AzureIoTClient 4:233dd7616d73 26 /* Codes_SRS_DATA_PUBLISHER_99_067:[ Before any call to DataPublisher_SetMaxBufferSize, the default max buffer size shall be equal to 10KB.] */
AzureIoTClient 4:233dd7616d73 27 static size_t maxBufferSize_ = DEFAULT_MAX_BUFFER_SIZE;
AzureIoTClient 4:233dd7616d73 28
AzureIoTClient 4:233dd7616d73 29 typedef struct DATA_PUBLISHER_INSTANCE_TAG
AzureIoTClient 4:233dd7616d73 30 {
AzureIoTClient 4:233dd7616d73 31 DATA_MARSHALLER_HANDLE DataMarshallerHandle;
AzureIoTClient 4:233dd7616d73 32 SCHEMA_MODEL_TYPE_HANDLE ModelHandle;
AzureIoTClient 4:233dd7616d73 33 } DATA_PUBLISHER_INSTANCE;
AzureIoTClient 4:233dd7616d73 34
AzureIoTClient 4:233dd7616d73 35 typedef struct TRANSACTION_TAG
AzureIoTClient 4:233dd7616d73 36 {
AzureIoTClient 4:233dd7616d73 37 DATA_PUBLISHER_INSTANCE* DataPublisherInstance;
AzureIoTClient 4:233dd7616d73 38 size_t ValueCount;
AzureIoTClient 4:233dd7616d73 39 DATA_MARSHALLER_VALUE* Values;
AzureIoTClient 4:233dd7616d73 40 } TRANSACTION;
AzureIoTClient 4:233dd7616d73 41
AzureIoTClient 4:233dd7616d73 42 DATA_PUBLISHER_HANDLE DataPublisher_Create(SCHEMA_MODEL_TYPE_HANDLE modelHandle, bool includePropertyPath)
AzureIoTClient 4:233dd7616d73 43 {
AzureIoTClient 4:233dd7616d73 44 DATA_PUBLISHER_HANDLE result;
AzureIoTClient 4:233dd7616d73 45 DATA_PUBLISHER_INSTANCE* dataPublisherInstance;
AzureIoTClient 4:233dd7616d73 46
AzureIoTClient 4:233dd7616d73 47 /* Codes_SRS_DATA_PUBLISHER_99_042:[ If a NULL argument is passed to it, DataPublisher_Create shall return NULL.] */
AzureIoTClient 4:233dd7616d73 48 if (
AzureIoTClient 4:233dd7616d73 49 (modelHandle == NULL)
AzureIoTClient 4:233dd7616d73 50 )
AzureIoTClient 4:233dd7616d73 51 {
AzureIoTClient 4:233dd7616d73 52 result = NULL;
AzureIoTClient 4:233dd7616d73 53 LogError("(result = %s)\r\n", ENUM_TO_STRING(DATA_PUBLISHER_RESULT, DATA_PUBLISHER_INVALID_ARG));
AzureIoTClient 4:233dd7616d73 54 }
AzureIoTClient 4:233dd7616d73 55 else if ((dataPublisherInstance = (DATA_PUBLISHER_INSTANCE*)malloc(sizeof(DATA_PUBLISHER_INSTANCE))) == NULL)
AzureIoTClient 4:233dd7616d73 56 {
AzureIoTClient 4:233dd7616d73 57 /* Codes_SRS_DATA_PUBLISHER_99_047:[ For any other error not specified here, DataPublisher_Create shall return NULL.] */
AzureIoTClient 4:233dd7616d73 58 result = NULL;
AzureIoTClient 4:233dd7616d73 59 LogError("(result = %s)\r\n", ENUM_TO_STRING(DATA_PUBLISHER_RESULT, DATA_PUBLISHER_ERROR));
AzureIoTClient 4:233dd7616d73 60 }
AzureIoTClient 4:233dd7616d73 61 else
AzureIoTClient 4:233dd7616d73 62 {
AzureIoTClient 4:233dd7616d73 63 /* Codes_SRS_DATA_PUBLISHER_99_043:[ DataPublisher_Create shall initialize and hold a handle to a DataMarshaller instance.] */
AzureIoTClient 4:233dd7616d73 64 /* Codes_SRS_DATA_PUBLISHER_01_001: [DataPublisher_Create shall pass the includePropertyPath argument to DataMarshaller_Create.] */
AzureIoTClient 4:233dd7616d73 65 if ((dataPublisherInstance->DataMarshallerHandle = DataMarshaller_Create(modelHandle, includePropertyPath)) == NULL)
AzureIoTClient 4:233dd7616d73 66 {
AzureIoTClient 4:233dd7616d73 67 free(dataPublisherInstance);
AzureIoTClient 4:233dd7616d73 68
AzureIoTClient 4:233dd7616d73 69 /* Codes_SRS_DATA_PUBLISHER_99_044:[ If the creation of the DataMarshaller instance fails, DataPublisher_Create shall return NULL.] */
AzureIoTClient 4:233dd7616d73 70 result = NULL;
AzureIoTClient 4:233dd7616d73 71 LogError("(result = %s)\r\n", ENUM_TO_STRING(DATA_PUBLISHER_RESULT, DATA_PUBLISHER_MARSHALLER_ERROR));
AzureIoTClient 4:233dd7616d73 72 }
AzureIoTClient 4:233dd7616d73 73 else
AzureIoTClient 4:233dd7616d73 74 {
AzureIoTClient 4:233dd7616d73 75 dataPublisherInstance->ModelHandle = modelHandle;
AzureIoTClient 4:233dd7616d73 76
AzureIoTClient 4:233dd7616d73 77 /* Codes_SRS_DATA_PUBLISHER_99_041:[ DataPublisher_Create shall create a new DataPublisher instance and return a non-NULL handle in case of success.] */
AzureIoTClient 4:233dd7616d73 78 result = dataPublisherInstance;
AzureIoTClient 4:233dd7616d73 79 }
AzureIoTClient 4:233dd7616d73 80 }
AzureIoTClient 4:233dd7616d73 81
AzureIoTClient 4:233dd7616d73 82 return result;
AzureIoTClient 4:233dd7616d73 83 }
AzureIoTClient 4:233dd7616d73 84
AzureIoTClient 4:233dd7616d73 85 void DataPublisher_Destroy(DATA_PUBLISHER_HANDLE dataPublisherHandle)
AzureIoTClient 4:233dd7616d73 86 {
AzureIoTClient 4:233dd7616d73 87 if (dataPublisherHandle != NULL)
AzureIoTClient 4:233dd7616d73 88 {
AzureIoTClient 4:233dd7616d73 89 DATA_PUBLISHER_INSTANCE* dataPublisherInstance = (DATA_PUBLISHER_INSTANCE*)dataPublisherHandle;
AzureIoTClient 4:233dd7616d73 90 DataMarshaller_Destroy(dataPublisherInstance->DataMarshallerHandle);
AzureIoTClient 4:233dd7616d73 91
AzureIoTClient 4:233dd7616d73 92 free(dataPublisherHandle);
AzureIoTClient 4:233dd7616d73 93 }
AzureIoTClient 4:233dd7616d73 94 }
AzureIoTClient 4:233dd7616d73 95
AzureIoTClient 4:233dd7616d73 96 TRANSACTION_HANDLE DataPublisher_StartTransaction(DATA_PUBLISHER_HANDLE dataPublisherHandle)
AzureIoTClient 4:233dd7616d73 97 {
AzureIoTClient 4:233dd7616d73 98 TRANSACTION* transaction;
AzureIoTClient 4:233dd7616d73 99
AzureIoTClient 4:233dd7616d73 100 /* Codes_SRS_DATA_PUBLISHER_99_038:[ If DataPublisher_StartTransaction is called with a NULL argument it shall return NULL.] */
AzureIoTClient 4:233dd7616d73 101 if (dataPublisherHandle == NULL)
AzureIoTClient 4:233dd7616d73 102 {
AzureIoTClient 4:233dd7616d73 103 transaction = NULL;
AzureIoTClient 4:233dd7616d73 104 LogError("(Error code: %s)\r\n", ENUM_TO_STRING(DATA_PUBLISHER_RESULT, DATA_PUBLISHER_INVALID_ARG));
AzureIoTClient 4:233dd7616d73 105 }
AzureIoTClient 4:233dd7616d73 106 else
AzureIoTClient 4:233dd7616d73 107 {
AzureIoTClient 4:233dd7616d73 108 /* Codes_SRS_DATA_PUBLISHER_99_007:[ A call to DataPublisher_StartTransaction shall start a new transaction.] */
AzureIoTClient 4:233dd7616d73 109 transaction = (TRANSACTION*)malloc(sizeof(TRANSACTION));
AzureIoTClient 4:233dd7616d73 110 if (transaction == NULL)
AzureIoTClient 4:233dd7616d73 111 {
AzureIoTClient 4:233dd7616d73 112 LogError("Allocating transaction failed (Error code: %s)\r\n", ENUM_TO_STRING(DATA_PUBLISHER_RESULT, DATA_PUBLISHER_ERROR));
AzureIoTClient 4:233dd7616d73 113 }
AzureIoTClient 4:233dd7616d73 114 else
AzureIoTClient 4:233dd7616d73 115 {
AzureIoTClient 4:233dd7616d73 116 transaction->ValueCount = 0;
AzureIoTClient 4:233dd7616d73 117 transaction->Values = NULL;
AzureIoTClient 4:233dd7616d73 118 transaction->DataPublisherInstance = (DATA_PUBLISHER_INSTANCE*)dataPublisherHandle;
AzureIoTClient 4:233dd7616d73 119 }
AzureIoTClient 4:233dd7616d73 120 }
AzureIoTClient 4:233dd7616d73 121
AzureIoTClient 4:233dd7616d73 122 /* Codes_SRS_DATA_PUBLISHER_99_008:[ DataPublisher_StartTransaction shall return a non-NULL handle upon success.] */
AzureIoTClient 4:233dd7616d73 123 /* Codes_SRS_DATA_PUBLISHER_99_009:[ DataPublisher_StartTransaction shall return NULL upon failure.] */
AzureIoTClient 4:233dd7616d73 124 return transaction;
AzureIoTClient 4:233dd7616d73 125 }
AzureIoTClient 4:233dd7616d73 126
AzureIoTClient 4:233dd7616d73 127 DATA_PUBLISHER_RESULT DataPublisher_PublishTransacted(TRANSACTION_HANDLE transactionHandle, const char* propertyPath, const AGENT_DATA_TYPE* data)
AzureIoTClient 4:233dd7616d73 128 {
AzureIoTClient 4:233dd7616d73 129 DATA_PUBLISHER_RESULT result;
AzureIoTClient 4:233dd7616d73 130 char* propertyPathCopy;
AzureIoTClient 4:233dd7616d73 131
AzureIoTClient 4:233dd7616d73 132 /* Codes_SRS_DATA_PUBLISHER_99_017:[ When one or more NULL parameter(s) are specified, DataPublisher_PublishTransacted is called with a NULL transactionHandle, it shall return DATA_PUBLISHER_INVALID_ARG.] */
AzureIoTClient 4:233dd7616d73 133 if ((transactionHandle == NULL) ||
AzureIoTClient 4:233dd7616d73 134 (propertyPath == NULL) ||
AzureIoTClient 4:233dd7616d73 135 (data == NULL))
AzureIoTClient 4:233dd7616d73 136 {
AzureIoTClient 4:233dd7616d73 137 result = DATA_PUBLISHER_INVALID_ARG;
AzureIoTClient 4:233dd7616d73 138 LOG_DATA_PUBLISHER_ERROR;
AzureIoTClient 4:233dd7616d73 139 }
AzureIoTClient 4:233dd7616d73 140 else if (mallocAndStrcpy_s(&propertyPathCopy, propertyPath) != 0)
AzureIoTClient 4:233dd7616d73 141 {
AzureIoTClient 4:233dd7616d73 142 /* Codes_SRS_DATA_PUBLISHER_99_020:[ For any errors not explicitly mentioned here the DataPublisher APIs shall return DATA_PUBLISHER_ERROR.] */
AzureIoTClient 4:233dd7616d73 143 result = DATA_PUBLISHER_ERROR;
AzureIoTClient 4:233dd7616d73 144 LOG_DATA_PUBLISHER_ERROR;
AzureIoTClient 4:233dd7616d73 145 }
AzureIoTClient 4:233dd7616d73 146 else
AzureIoTClient 4:233dd7616d73 147 {
AzureIoTClient 4:233dd7616d73 148 TRANSACTION* transaction = (TRANSACTION*)transactionHandle;
AzureIoTClient 4:233dd7616d73 149 AGENT_DATA_TYPE* propertyValue;
AzureIoTClient 4:233dd7616d73 150
AzureIoTClient 4:233dd7616d73 151 if (!Schema_ModelPropertyByPathExists(transaction->DataPublisherInstance->ModelHandle, propertyPath))
AzureIoTClient 4:233dd7616d73 152 {
AzureIoTClient 4:233dd7616d73 153 free(propertyPathCopy);
AzureIoTClient 4:233dd7616d73 154
AzureIoTClient 4:233dd7616d73 155 /* Codes_SRS_DATA_PUBLISHER_99_040:[ When propertyPath does not exist in the supplied model, DataPublisher_Publish shall return DATA_PUBLISHER_SCHEMA_FAILED without dispatching data.] */
AzureIoTClient 4:233dd7616d73 156 result = DATA_PUBLISHER_SCHEMA_FAILED;
AzureIoTClient 4:233dd7616d73 157 LOG_DATA_PUBLISHER_ERROR;
AzureIoTClient 4:233dd7616d73 158 }
AzureIoTClient 4:233dd7616d73 159 else if ((propertyValue = (AGENT_DATA_TYPE*)malloc(sizeof(AGENT_DATA_TYPE))) == NULL)
AzureIoTClient 4:233dd7616d73 160 {
AzureIoTClient 4:233dd7616d73 161 free(propertyPathCopy);
AzureIoTClient 4:233dd7616d73 162
AzureIoTClient 4:233dd7616d73 163 /* Codes_SRS_DATA_PUBLISHER_99_020:[ For any errors not explicitly mentioned here the DataPublisher APIs shall return DATA_PUBLISHER_ERROR.] */
AzureIoTClient 4:233dd7616d73 164 result = DATA_PUBLISHER_ERROR;
AzureIoTClient 4:233dd7616d73 165 LOG_DATA_PUBLISHER_ERROR;
AzureIoTClient 4:233dd7616d73 166 }
AzureIoTClient 4:233dd7616d73 167 else if (Create_AGENT_DATA_TYPE_from_AGENT_DATA_TYPE(propertyValue, data) != AGENT_DATA_TYPES_OK)
AzureIoTClient 4:233dd7616d73 168 {
AzureIoTClient 4:233dd7616d73 169 free(propertyPathCopy);
AzureIoTClient 4:233dd7616d73 170 free(propertyValue);
AzureIoTClient 4:233dd7616d73 171
AzureIoTClient 4:233dd7616d73 172 /* Codes_SRS_DATA_PUBLISHER_99_028:[ If creating the copy fails then DATA_PUBLISHER_AGENT_DATA_TYPES_ERROR shall be returned.] */
AzureIoTClient 4:233dd7616d73 173 result = DATA_PUBLISHER_AGENT_DATA_TYPES_ERROR;
AzureIoTClient 4:233dd7616d73 174 LOG_DATA_PUBLISHER_ERROR;
AzureIoTClient 4:233dd7616d73 175 }
AzureIoTClient 4:233dd7616d73 176 else
AzureIoTClient 4:233dd7616d73 177 {
AzureIoTClient 4:233dd7616d73 178 size_t i;
AzureIoTClient 4:233dd7616d73 179 DATA_MARSHALLER_VALUE* propertySlot = NULL;
AzureIoTClient 4:233dd7616d73 180
AzureIoTClient 4:233dd7616d73 181 /* Codes_SRS_DATA_PUBLISHER_99_019:[ If the same property is associated twice with a transaction, then the last value shall be kept associated with the transaction.] */
AzureIoTClient 4:233dd7616d73 182 for (i = 0; i < transaction->ValueCount; i++)
AzureIoTClient 4:233dd7616d73 183 {
AzureIoTClient 4:233dd7616d73 184 if (strcmp(transaction->Values[i].PropertyPath, propertyPath) == 0)
AzureIoTClient 4:233dd7616d73 185 {
AzureIoTClient 4:233dd7616d73 186 propertySlot = &transaction->Values[i];
AzureIoTClient 4:233dd7616d73 187 break;
AzureIoTClient 4:233dd7616d73 188 }
AzureIoTClient 4:233dd7616d73 189 }
AzureIoTClient 4:233dd7616d73 190
AzureIoTClient 4:233dd7616d73 191 if (propertySlot == NULL)
AzureIoTClient 4:233dd7616d73 192 {
AzureIoTClient 4:233dd7616d73 193 DATA_MARSHALLER_VALUE* newValues = (DATA_MARSHALLER_VALUE*)realloc(transaction->Values, sizeof(DATA_MARSHALLER_VALUE)* (transaction->ValueCount + 1));
AzureIoTClient 4:233dd7616d73 194 if (newValues != NULL)
AzureIoTClient 4:233dd7616d73 195 {
AzureIoTClient 4:233dd7616d73 196 transaction->Values = newValues;
AzureIoTClient 4:233dd7616d73 197 propertySlot = &transaction->Values[transaction->ValueCount];
AzureIoTClient 4:233dd7616d73 198 propertySlot->Value = NULL;
AzureIoTClient 4:233dd7616d73 199 propertySlot->PropertyPath = NULL;
AzureIoTClient 4:233dd7616d73 200 transaction->ValueCount++;
AzureIoTClient 4:233dd7616d73 201 }
AzureIoTClient 4:233dd7616d73 202 }
AzureIoTClient 4:233dd7616d73 203
AzureIoTClient 4:233dd7616d73 204 if (propertySlot == NULL)
AzureIoTClient 4:233dd7616d73 205 {
AzureIoTClient 4:233dd7616d73 206 Destroy_AGENT_DATA_TYPE((AGENT_DATA_TYPE*)propertyValue);
AzureIoTClient 4:233dd7616d73 207 free(propertyValue);
AzureIoTClient 4:233dd7616d73 208 free(propertyPathCopy);
AzureIoTClient 4:233dd7616d73 209
AzureIoTClient 4:233dd7616d73 210 /* Codes_SRS_DATA_PUBLISHER_99_020:[ For any errors not explicitly mentioned here the DataPublisher APIs shall return DATA_PUBLISHER_ERROR.] */
AzureIoTClient 4:233dd7616d73 211 result = DATA_PUBLISHER_ERROR;
AzureIoTClient 4:233dd7616d73 212 LOG_DATA_PUBLISHER_ERROR;
AzureIoTClient 4:233dd7616d73 213 }
AzureIoTClient 4:233dd7616d73 214 else
AzureIoTClient 4:233dd7616d73 215 {
AzureIoTClient 4:233dd7616d73 216 if (propertySlot->Value != NULL)
AzureIoTClient 4:233dd7616d73 217 {
AzureIoTClient 4:233dd7616d73 218 Destroy_AGENT_DATA_TYPE((AGENT_DATA_TYPE*)propertySlot->Value);
AzureIoTClient 4:233dd7616d73 219 free((AGENT_DATA_TYPE*)propertySlot->Value);
AzureIoTClient 4:233dd7616d73 220 }
AzureIoTClient 4:233dd7616d73 221 if (propertySlot->PropertyPath != NULL)
AzureIoTClient 4:233dd7616d73 222 {
AzureIoTClient 4:233dd7616d73 223 char* existingValue = (char*)propertySlot->PropertyPath;
AzureIoTClient 4:233dd7616d73 224 free(existingValue);
AzureIoTClient 4:233dd7616d73 225 }
AzureIoTClient 4:233dd7616d73 226
AzureIoTClient 4:233dd7616d73 227 /* Codes_SRS_DATA_PUBLISHER_99_016:[ When DataPublisher_PublishTransacted is invoked, DataPublisher shall associate the data with the transaction identified by the transactionHandle argument and return DATA_PUBLISHER_OK. No data shall be dispatched at the time of the call.] */
AzureIoTClient 4:233dd7616d73 228 propertySlot->PropertyPath = propertyPathCopy;
AzureIoTClient 4:233dd7616d73 229 propertySlot->Value = propertyValue;
AzureIoTClient 4:233dd7616d73 230
AzureIoTClient 4:233dd7616d73 231 result = DATA_PUBLISHER_OK;
AzureIoTClient 4:233dd7616d73 232 }
AzureIoTClient 4:233dd7616d73 233 }
AzureIoTClient 4:233dd7616d73 234 }
AzureIoTClient 4:233dd7616d73 235
AzureIoTClient 4:233dd7616d73 236 return result;
AzureIoTClient 4:233dd7616d73 237 }
AzureIoTClient 4:233dd7616d73 238
AzureIoTClient 4:233dd7616d73 239 DATA_PUBLISHER_RESULT DataPublisher_EndTransaction(TRANSACTION_HANDLE transactionHandle, unsigned char** destination, size_t* destinationSize)
AzureIoTClient 4:233dd7616d73 240 {
AzureIoTClient 4:233dd7616d73 241 DATA_PUBLISHER_RESULT result;
AzureIoTClient 4:233dd7616d73 242
AzureIoTClient 4:233dd7616d73 243 /*Codes_SRS_DATA_PUBLISHER_02_006: [If the destination argument is NULL, DataPublisher_EndTransaction shall return DATA_PUBLISHER_INVALID_ARG.] */
AzureIoTClient 4:233dd7616d73 244 /*Codes_SRS_DATA_PUBLISHER_02_007: [If the destinationSize argument is NULL, DataPublisher_EndTransaction shall return DATA_PUBLISHER_INVALID_ARG.] */
AzureIoTClient 4:233dd7616d73 245 if (
AzureIoTClient 4:233dd7616d73 246 (transactionHandle == NULL) ||
AzureIoTClient 4:233dd7616d73 247 (destination == NULL) ||
AzureIoTClient 4:233dd7616d73 248 (destinationSize == NULL)
AzureIoTClient 4:233dd7616d73 249 )
AzureIoTClient 4:233dd7616d73 250 {
AzureIoTClient 4:233dd7616d73 251 /* Codes_SRS_DATA_PUBLISHER_99_011:[ If the transactionHandle argument is NULL, DataPublisher_EndTransaction shall return DATA_PUBLISHER_INVALID_ARG.] */
AzureIoTClient 4:233dd7616d73 252 result = DATA_PUBLISHER_INVALID_ARG;
AzureIoTClient 4:233dd7616d73 253 LOG_DATA_PUBLISHER_ERROR;
AzureIoTClient 4:233dd7616d73 254 }
AzureIoTClient 4:233dd7616d73 255 else
AzureIoTClient 4:233dd7616d73 256 {
AzureIoTClient 4:233dd7616d73 257 TRANSACTION* transaction = (TRANSACTION*)transactionHandle;
AzureIoTClient 4:233dd7616d73 258
AzureIoTClient 4:233dd7616d73 259 if (transaction->ValueCount == 0)
AzureIoTClient 4:233dd7616d73 260 {
AzureIoTClient 4:233dd7616d73 261 /* Codes_SRS_DATA_PUBLISHER_99_024:[ If no values have been associated with the transaction, no data shall be dispatched
AzureIoTClient 4:233dd7616d73 262 to DataMarshaller, the transaction shall be discarded and DataPublisher_EndTransaction shall return DATA_PUBLISHER_EMPTY_TRANSACTION.] */
AzureIoTClient 4:233dd7616d73 263 result = DATA_PUBLISHER_EMPTY_TRANSACTION;
AzureIoTClient 4:233dd7616d73 264 LOG_DATA_PUBLISHER_ERROR;
AzureIoTClient 4:233dd7616d73 265 }
AzureIoTClient 4:233dd7616d73 266 /* Codes_SRS_DATA_PUBLISHER_99_010:[ A call to DataPublisher_EndTransaction shall mark the end of a transaction and, trigger a dispatch of all the data grouped by that transaction.] */
AzureIoTClient 4:233dd7616d73 267 else if (DataMarshaller_SendData(transaction->DataPublisherInstance->DataMarshallerHandle, transaction->ValueCount, transaction->Values, destination, destinationSize) != DATA_MARSHALLER_OK)
AzureIoTClient 4:233dd7616d73 268 {
AzureIoTClient 4:233dd7616d73 269 /* Codes_SRS_DATA_PUBLISHER_99_025:[ When the DataMarshaller_SendData call fails, DataPublisher_EndTransaction shall return DATA_PUBLISHER_MARSHALLER_ERROR.] */
AzureIoTClient 4:233dd7616d73 270 result = DATA_PUBLISHER_MARSHALLER_ERROR;
AzureIoTClient 4:233dd7616d73 271 LOG_DATA_PUBLISHER_ERROR;
AzureIoTClient 4:233dd7616d73 272 }
AzureIoTClient 4:233dd7616d73 273 else
AzureIoTClient 4:233dd7616d73 274 {
AzureIoTClient 4:233dd7616d73 275 /* Codes_SRS_DATA_PUBLISHER_99_026:[ On success, DataPublisher_EndTransaction shall return DATA_PUBLISHER_OK.] */
AzureIoTClient 4:233dd7616d73 276 result = DATA_PUBLISHER_OK;
AzureIoTClient 4:233dd7616d73 277 }
AzureIoTClient 4:233dd7616d73 278
AzureIoTClient 4:233dd7616d73 279 /* Codes_SRS_DATA_PUBLISHER_99_012:[ DataPublisher_EndTransaction shall dispose of any resources associated with the transaction.] */
AzureIoTClient 4:233dd7616d73 280 (void)DataPublisher_CancelTransaction(transactionHandle);
AzureIoTClient 4:233dd7616d73 281 }
AzureIoTClient 4:233dd7616d73 282
AzureIoTClient 4:233dd7616d73 283 return result;
AzureIoTClient 4:233dd7616d73 284 }
AzureIoTClient 4:233dd7616d73 285
AzureIoTClient 4:233dd7616d73 286 DATA_PUBLISHER_RESULT DataPublisher_CancelTransaction(TRANSACTION_HANDLE transactionHandle)
AzureIoTClient 4:233dd7616d73 287 {
AzureIoTClient 4:233dd7616d73 288 DATA_PUBLISHER_RESULT result;
AzureIoTClient 4:233dd7616d73 289
AzureIoTClient 4:233dd7616d73 290 if (transactionHandle == NULL)
AzureIoTClient 4:233dd7616d73 291 {
AzureIoTClient 4:233dd7616d73 292 /* Codes_SRS_DATA_PUBLISHER_99_014:[ If the transactionHandle argument is NULL DataPublisher_CancelTransaction shall return DATA_PUBLISHER_INVALID_ARG.] */
AzureIoTClient 4:233dd7616d73 293 result = DATA_PUBLISHER_INVALID_ARG;
AzureIoTClient 4:233dd7616d73 294 LOG_DATA_PUBLISHER_ERROR;
AzureIoTClient 4:233dd7616d73 295 }
AzureIoTClient 4:233dd7616d73 296 else
AzureIoTClient 4:233dd7616d73 297 {
AzureIoTClient 4:233dd7616d73 298 TRANSACTION* transaction = (TRANSACTION*)transactionHandle;
AzureIoTClient 4:233dd7616d73 299 size_t i;
AzureIoTClient 4:233dd7616d73 300
AzureIoTClient 4:233dd7616d73 301 /* Codes_SRS_DATA_PUBLISHER_99_015:[ DataPublisher_CancelTransaction shall dispose of any resources associated with the transaction.] */
AzureIoTClient 4:233dd7616d73 302 for (i = 0; i < transaction->ValueCount; i++)
AzureIoTClient 4:233dd7616d73 303 {
AzureIoTClient 4:233dd7616d73 304 Destroy_AGENT_DATA_TYPE((AGENT_DATA_TYPE*)transaction->Values[i].Value);
AzureIoTClient 4:233dd7616d73 305 free((char*)transaction->Values[i].PropertyPath);
AzureIoTClient 4:233dd7616d73 306 free((AGENT_DATA_TYPE*)transaction->Values[i].Value);
AzureIoTClient 4:233dd7616d73 307 }
AzureIoTClient 4:233dd7616d73 308
AzureIoTClient 4:233dd7616d73 309 /* Codes_SRS_DATA_PUBLISHER_99_015:[ DataPublisher_CancelTransaction shall dispose of any resources associated with the transaction.] */
AzureIoTClient 4:233dd7616d73 310 free(transaction->Values);
AzureIoTClient 4:233dd7616d73 311 free(transaction);
AzureIoTClient 4:233dd7616d73 312
AzureIoTClient 4:233dd7616d73 313 /* Codes_SRS_DATA_PUBLISHER_99_013:[ A call to DataPublisher_CancelTransaction shall dispose of the transaction without dispatching
AzureIoTClient 4:233dd7616d73 314 the data to the DataMarshaller module and it shall return DATA_PUBLISHER_OK.] */
AzureIoTClient 4:233dd7616d73 315 result = DATA_PUBLISHER_OK;
AzureIoTClient 4:233dd7616d73 316 }
AzureIoTClient 4:233dd7616d73 317
AzureIoTClient 4:233dd7616d73 318 return result;
AzureIoTClient 4:233dd7616d73 319 }
AzureIoTClient 4:233dd7616d73 320
AzureIoTClient 4:233dd7616d73 321 /* Codes_SRS_DATA_PUBLISHER_99_065:[ DataPublisher_SetMaxBufferSize shall directly update the value used to limit how much data (in bytes) can be buffered in the BufferStorage instance.] */
AzureIoTClient 4:233dd7616d73 322 void DataPublisher_SetMaxBufferSize(size_t value)
AzureIoTClient 4:233dd7616d73 323 {
AzureIoTClient 4:233dd7616d73 324 maxBufferSize_ = value;
AzureIoTClient 4:233dd7616d73 325 }
AzureIoTClient 4:233dd7616d73 326
AzureIoTClient 4:233dd7616d73 327 /* Codes_SRS_DATA_PUBLISHER_99_069:[ DataMarshaller_GetMaxBufferSize shall return the current max buffer size value used by any new instance of DataMarshaller.] */
AzureIoTClient 4:233dd7616d73 328 size_t DataPublisher_GetMaxBufferSize(void)
AzureIoTClient 4:233dd7616d73 329 {
AzureIoTClient 4:233dd7616d73 330 return maxBufferSize_;
AzureIoTClient 4:233dd7616d73 331 }