Azure IoT / azure_umqtt_c

A small footprint MQTT library

Dependents:   STM32F746_iothub_client_sample_mqtt FXOS8700CQ_To_Azure_IoT f767zi_mqtt FXOS8700CQ_To_Azure_IoT ... more

mqtt_client.c@3:9b4e7158ca0d, 2016-06-17 (annotated)

Committer:
AzureIoTClient
Date:
Fri Jun 17 17:03:06 2016 -0700
Revision:
3:9b4e7158ca0d
Parent:
1:8dba42ff9701
Child:
4:e7167dabd6e4
1.0.9

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Azure.IoT Build 0:ef4901974abc 1 // Copyright (c) Microsoft. All rights reserved.
Azure.IoT Build 0:ef4901974abc 2 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
Azure.IoT Build 0:ef4901974abc 3
Azure.IoT Build 0:ef4901974abc 4 #include <stdlib.h>
Azure.IoT Build 0:ef4901974abc 5 #include "azure_c_shared_utility/gballoc.h"
Azure.IoT Build 0:ef4901974abc 6 #include "azure_c_shared_utility/platform.h"
Azure.IoT Build 0:ef4901974abc 7 #include "azure_c_shared_utility/tickcounter.h"
Azure.IoT Build 0:ef4901974abc 8 #include "azure_c_shared_utility/crt_abstractions.h"
Azure.IoT Build 0:ef4901974abc 9
Azure.IoT Build 0:ef4901974abc 10 #include "azure_umqtt_c/mqtt_client.h"
Azure.IoT Build 0:ef4901974abc 11 #include "azure_umqtt_c/mqtt_codec.h"
AzureIoTClient 1:8dba42ff9701 12 #include <time.h>
Azure.IoT Build 0:ef4901974abc 13
Azure.IoT Build 0:ef4901974abc 14 #define KEEP_ALIVE_BUFFER_SEC 10
Azure.IoT Build 0:ef4901974abc 15 #define VARIABLE_HEADER_OFFSET 2
Azure.IoT Build 0:ef4901974abc 16 #define RETAIN_FLAG_MASK 0x1
Azure.IoT Build 0:ef4901974abc 17 #define QOS_LEAST_ONCE_FLAG_MASK 0x2
Azure.IoT Build 0:ef4901974abc 18 #define QOS_EXACTLY_ONCE_FLAG_MASK 0x4
Azure.IoT Build 0:ef4901974abc 19 #define DUPLICATE_FLAG_MASK 0x8
Azure.IoT Build 0:ef4901974abc 20 #define CONNECT_PACKET_MASK 0xf0
AzureIoTClient 1:8dba42ff9701 21 #define TIME_MAX_BUFFER 16
AzureIoTClient 3:9b4e7158ca0d 22 #define DEFAULT_MAX_PING_RESPONSE_TIME 90
Azure.IoT Build 0:ef4901974abc 23
Azure.IoT Build 0:ef4901974abc 24 static const char* FORMAT_HEX_CHAR = "0x%02x ";
Azure.IoT Build 0:ef4901974abc 25
Azure.IoT Build 0:ef4901974abc 26 typedef struct MQTT_CLIENT_TAG
Azure.IoT Build 0:ef4901974abc 27 {
Azure.IoT Build 0:ef4901974abc 28 XIO_HANDLE xioHandle;
Azure.IoT Build 0:ef4901974abc 29 MQTTCODEC_HANDLE codec_handle;
Azure.IoT Build 0:ef4901974abc 30 CONTROL_PACKET_TYPE packetState;
Azure.IoT Build 0:ef4901974abc 31 LOGGER_LOG logFunc;
Azure.IoT Build 0:ef4901974abc 32 TICK_COUNTER_HANDLE packetTickCntr;
Azure.IoT Build 0:ef4901974abc 33 uint64_t packetSendTimeMs;
Azure.IoT Build 0:ef4901974abc 34 ON_MQTT_OPERATION_CALLBACK fnOperationCallback;
Azure.IoT Build 0:ef4901974abc 35 ON_MQTT_MESSAGE_RECV_CALLBACK fnMessageRecv;
Azure.IoT Build 0:ef4901974abc 36 void* ctx;
Azure.IoT Build 0:ef4901974abc 37 QOS_VALUE qosValue;
Azure.IoT Build 0:ef4901974abc 38 uint16_t keepAliveInterval;
Azure.IoT Build 0:ef4901974abc 39 MQTT_CLIENT_OPTIONS mqttOptions;
Azure.IoT Build 0:ef4901974abc 40 bool clientConnected;
Azure.IoT Build 0:ef4901974abc 41 bool socketConnected;
Azure.IoT Build 0:ef4901974abc 42 bool logTrace;
Azure.IoT Build 0:ef4901974abc 43 bool rawBytesTrace;
AzureIoTClient 3:9b4e7158ca0d 44 uint64_t timeSincePing;
AzureIoTClient 3:9b4e7158ca0d 45 uint16_t maxPingRespTime;
Azure.IoT Build 0:ef4901974abc 46 } MQTT_CLIENT;
Azure.IoT Build 0:ef4901974abc 47
Azure.IoT Build 0:ef4901974abc 48 static uint16_t byteutil_read_uint16(uint8_t** buffer)
Azure.IoT Build 0:ef4901974abc 49 {
Azure.IoT Build 0:ef4901974abc 50 uint16_t result = 0;
Azure.IoT Build 0:ef4901974abc 51 if (buffer != NULL)
Azure.IoT Build 0:ef4901974abc 52 {
Azure.IoT Build 0:ef4901974abc 53 result = 256 * ((uint8_t)(**buffer)) + (uint8_t)(*(*buffer + 1));
Azure.IoT Build 0:ef4901974abc 54 *buffer += 2; // Move the ptr
Azure.IoT Build 0:ef4901974abc 55 }
Azure.IoT Build 0:ef4901974abc 56 return result;
Azure.IoT Build 0:ef4901974abc 57 }
Azure.IoT Build 0:ef4901974abc 58
Azure.IoT Build 0:ef4901974abc 59 static char* byteutil_readUTF(uint8_t** buffer, size_t* byteLen)
Azure.IoT Build 0:ef4901974abc 60 {
Azure.IoT Build 0:ef4901974abc 61 char* result = NULL;
Azure.IoT Build 0:ef4901974abc 62 if (buffer != NULL)
Azure.IoT Build 0:ef4901974abc 63 {
Azure.IoT Build 0:ef4901974abc 64 // Get the length of the string
Azure.IoT Build 0:ef4901974abc 65 int len = byteutil_read_uint16(buffer);
Azure.IoT Build 0:ef4901974abc 66 if (len > 0)
Azure.IoT Build 0:ef4901974abc 67 {
Azure.IoT Build 0:ef4901974abc 68 result = (char*)malloc(len + 1);
Azure.IoT Build 0:ef4901974abc 69 if (result != NULL)
Azure.IoT Build 0:ef4901974abc 70 {
Azure.IoT Build 0:ef4901974abc 71 (void)memcpy(result, *buffer, len);
Azure.IoT Build 0:ef4901974abc 72 result[len] = '\0';
Azure.IoT Build 0:ef4901974abc 73 *buffer += len;
Azure.IoT Build 0:ef4901974abc 74 if (byteLen != NULL)
Azure.IoT Build 0:ef4901974abc 75 {
Azure.IoT Build 0:ef4901974abc 76 *byteLen = len;
Azure.IoT Build 0:ef4901974abc 77 }
Azure.IoT Build 0:ef4901974abc 78 }
Azure.IoT Build 0:ef4901974abc 79 }
Azure.IoT Build 0:ef4901974abc 80 }
Azure.IoT Build 0:ef4901974abc 81 return result;
Azure.IoT Build 0:ef4901974abc 82 }
Azure.IoT Build 0:ef4901974abc 83
Azure.IoT Build 0:ef4901974abc 84 static uint8_t byteutil_readByte(uint8_t** buffer)
Azure.IoT Build 0:ef4901974abc 85 {
Azure.IoT Build 0:ef4901974abc 86 uint8_t result = 0;
Azure.IoT Build 0:ef4901974abc 87 if (buffer != NULL)
Azure.IoT Build 0:ef4901974abc 88 {
Azure.IoT Build 0:ef4901974abc 89 result = **buffer;
Azure.IoT Build 0:ef4901974abc 90 (*buffer)++;
Azure.IoT Build 0:ef4901974abc 91 }
Azure.IoT Build 0:ef4901974abc 92 return result;
Azure.IoT Build 0:ef4901974abc 93 }
Azure.IoT Build 0:ef4901974abc 94
Azure.IoT Build 0:ef4901974abc 95 static void sendComplete(void* context, IO_SEND_RESULT send_result)
Azure.IoT Build 0:ef4901974abc 96 {
Azure.IoT Build 0:ef4901974abc 97 MQTT_CLIENT* mqttData = (MQTT_CLIENT*)context;
Azure.IoT Build 0:ef4901974abc 98 if (mqttData != NULL && mqttData->fnOperationCallback != NULL)
Azure.IoT Build 0:ef4901974abc 99 {
Azure.IoT Build 0:ef4901974abc 100 if (mqttData->packetState == DISCONNECT_TYPE)
Azure.IoT Build 0:ef4901974abc 101 {
Azure.IoT Build 0:ef4901974abc 102 /*Codes_SRS_MQTT_CLIENT_07_032: [If the actionResult parameter is of type MQTT_CLIENT_ON_DISCONNECT or MQTT_CLIENT_ON_ERROR the the msgInfo value shall be NULL.]*/
Azure.IoT Build 0:ef4901974abc 103 mqttData->fnOperationCallback(mqttData, MQTT_CLIENT_ON_DISCONNECT, NULL, mqttData->ctx);
Azure.IoT Build 0:ef4901974abc 104
Azure.IoT Build 0:ef4901974abc 105 // close the xio
Azure.IoT Build 0:ef4901974abc 106 (void)xio_close(mqttData->xioHandle, NULL, mqttData->ctx);
Azure.IoT Build 0:ef4901974abc 107 mqttData->socketConnected = false;
Azure.IoT Build 0:ef4901974abc 108 mqttData->clientConnected = false;
Azure.IoT Build 0:ef4901974abc 109 }
Azure.IoT Build 0:ef4901974abc 110 }
Azure.IoT Build 0:ef4901974abc 111 }
Azure.IoT Build 0:ef4901974abc 112
Azure.IoT Build 0:ef4901974abc 113 static const char* retrievePacketType(CONTROL_PACKET_TYPE packet)
Azure.IoT Build 0:ef4901974abc 114 {
Azure.IoT Build 0:ef4901974abc 115 switch (packet&CONNECT_PACKET_MASK)
Azure.IoT Build 0:ef4901974abc 116 {
Azure.IoT Build 0:ef4901974abc 117 case CONNECT_TYPE: return "CONNECT";
Azure.IoT Build 0:ef4901974abc 118 case CONNACK_TYPE: return "CONNACK";
Azure.IoT Build 0:ef4901974abc 119 case PUBLISH_TYPE: return "PUBLISH";
Azure.IoT Build 0:ef4901974abc 120 case PUBACK_TYPE: return "PUBACK";
Azure.IoT Build 0:ef4901974abc 121 case PUBREC_TYPE: return "PUBREC";
Azure.IoT Build 0:ef4901974abc 122 case PUBREL_TYPE: return "PUBREL";
Azure.IoT Build 0:ef4901974abc 123 case SUBSCRIBE_TYPE: return "SUBSCRIBE";
Azure.IoT Build 0:ef4901974abc 124 case SUBACK_TYPE: return "SUBACK";
Azure.IoT Build 0:ef4901974abc 125 case UNSUBSCRIBE_TYPE: return "UNSUBSCRIBE";
Azure.IoT Build 0:ef4901974abc 126 case UNSUBACK_TYPE: return "UNSUBACK";
Azure.IoT Build 0:ef4901974abc 127 case PINGREQ_TYPE: return "PINGREQ";
Azure.IoT Build 0:ef4901974abc 128 case PINGRESP_TYPE: return "PINGRESP";
Azure.IoT Build 0:ef4901974abc 129 case DISCONNECT_TYPE: return "DISCONNECT";
Azure.IoT Build 0:ef4901974abc 130 default:
Azure.IoT Build 0:ef4901974abc 131 case PACKET_TYPE_ERROR:
Azure.IoT Build 0:ef4901974abc 132 case UNKNOWN_TYPE:
Azure.IoT Build 0:ef4901974abc 133 return "UNKNOWN";
Azure.IoT Build 0:ef4901974abc 134 }
Azure.IoT Build 0:ef4901974abc 135 }
Azure.IoT Build 0:ef4901974abc 136
AzureIoTClient 1:8dba42ff9701 137 static void getLogTime(char* timeResult, size_t len)
AzureIoTClient 1:8dba42ff9701 138 {
AzureIoTClient 1:8dba42ff9701 139 if (timeResult != NULL)
AzureIoTClient 1:8dba42ff9701 140 {
AzureIoTClient 1:8dba42ff9701 141 time_t localTime = time(NULL);
AzureIoTClient 1:8dba42ff9701 142 struct tm* tmInfo = localtime(&localTime);
AzureIoTClient 1:8dba42ff9701 143 if (strftime(timeResult, len, "%H:%M:%S", tmInfo) == 0)
AzureIoTClient 1:8dba42ff9701 144 {
AzureIoTClient 1:8dba42ff9701 145 timeResult[0] = '\0';
AzureIoTClient 1:8dba42ff9701 146 }
AzureIoTClient 1:8dba42ff9701 147 }
AzureIoTClient 1:8dba42ff9701 148 }
AzureIoTClient 1:8dba42ff9701 149
Azure.IoT Build 0:ef4901974abc 150 static void logOutgoingingMsgTrace(MQTT_CLIENT* clientData, const uint8_t* data, size_t length)
Azure.IoT Build 0:ef4901974abc 151 {
Azure.IoT Build 0:ef4901974abc 152 if (clientData != NULL && data != NULL && length > 0 && clientData->logTrace)
Azure.IoT Build 0:ef4901974abc 153 {
AzureIoTClient 1:8dba42ff9701 154 char tmBuffer[TIME_MAX_BUFFER];
AzureIoTClient 1:8dba42ff9701 155 getLogTime(tmBuffer, TIME_MAX_BUFFER);
AzureIoTClient 1:8dba42ff9701 156
AzureIoTClient 1:8dba42ff9701 157 LOG(clientData->logFunc, 0, "-> %s %s: ", tmBuffer, retrievePacketType((unsigned char)data[0]));
Azure.IoT Build 0:ef4901974abc 158 for (size_t index = 0; index < length; index++)
Azure.IoT Build 0:ef4901974abc 159 {
AzureIoTClient 1:8dba42ff9701 160 LOG(clientData->logFunc, 0, (char*)FORMAT_HEX_CHAR, data[index]);
Azure.IoT Build 0:ef4901974abc 161 }
Azure.IoT Build 0:ef4901974abc 162 LOG(clientData->logFunc, LOG_LINE, "");
Azure.IoT Build 0:ef4901974abc 163 }
Azure.IoT Build 0:ef4901974abc 164 }
Azure.IoT Build 0:ef4901974abc 165
Azure.IoT Build 0:ef4901974abc 166 static void logIncomingMsgTrace(MQTT_CLIENT* clientData, CONTROL_PACKET_TYPE packet, int flags, const uint8_t* data, size_t length)
Azure.IoT Build 0:ef4901974abc 167 {
AzureIoTClient 3:9b4e7158ca0d 168 if (clientData != NULL && clientData->logTrace)
Azure.IoT Build 0:ef4901974abc 169 {
AzureIoTClient 3:9b4e7158ca0d 170 if (data != NULL && length > 0)
AzureIoTClient 3:9b4e7158ca0d 171 {
AzureIoTClient 3:9b4e7158ca0d 172 char tmBuffer[TIME_MAX_BUFFER];
AzureIoTClient 3:9b4e7158ca0d 173 getLogTime(tmBuffer, TIME_MAX_BUFFER);
AzureIoTClient 1:8dba42ff9701 174
AzureIoTClient 3:9b4e7158ca0d 175 LOG(clientData->logFunc, 0, "<- %s %s: 0x%02x 0x%02x ", tmBuffer, retrievePacketType((unsigned char)packet), (unsigned char)(packet | flags), length);
AzureIoTClient 3:9b4e7158ca0d 176 for (size_t index = 0; index < length; index++)
AzureIoTClient 3:9b4e7158ca0d 177 {
AzureIoTClient 3:9b4e7158ca0d 178 LOG(clientData->logFunc, 0, (char*)FORMAT_HEX_CHAR, data[index]);
AzureIoTClient 3:9b4e7158ca0d 179 }
AzureIoTClient 3:9b4e7158ca0d 180 LOG(clientData->logFunc, LOG_LINE, "");
AzureIoTClient 3:9b4e7158ca0d 181 }
AzureIoTClient 3:9b4e7158ca0d 182 else if (packet == PINGRESP_TYPE)
Azure.IoT Build 0:ef4901974abc 183 {
AzureIoTClient 3:9b4e7158ca0d 184 char tmBuffer[TIME_MAX_BUFFER];
AzureIoTClient 3:9b4e7158ca0d 185 getLogTime(tmBuffer, TIME_MAX_BUFFER);
AzureIoTClient 3:9b4e7158ca0d 186
AzureIoTClient 3:9b4e7158ca0d 187 LOG(clientData->logFunc, LOG_LINE, "<- %s %s: 0x%02x 0x%02x ", tmBuffer, retrievePacketType((unsigned char)packet), (unsigned char)(packet | flags), length);
Azure.IoT Build 0:ef4901974abc 188 }
Azure.IoT Build 0:ef4901974abc 189 }
Azure.IoT Build 0:ef4901974abc 190 }
Azure.IoT Build 0:ef4901974abc 191
Azure.IoT Build 0:ef4901974abc 192 static int sendPacketItem(MQTT_CLIENT* clientData, const int8_t* data, size_t length)
Azure.IoT Build 0:ef4901974abc 193 {
Azure.IoT Build 0:ef4901974abc 194 int result;
Azure.IoT Build 0:ef4901974abc 195 logOutgoingingMsgTrace(clientData, data, length);
Azure.IoT Build 0:ef4901974abc 196
Azure.IoT Build 0:ef4901974abc 197 if (tickcounter_get_current_ms(clientData->packetTickCntr, &clientData->packetSendTimeMs) != 0)
Azure.IoT Build 0:ef4901974abc 198 {
Azure.IoT Build 0:ef4901974abc 199 LOG(clientData->logFunc, LOG_LINE, "Failure getting current ms tickcounter");
Azure.IoT Build 0:ef4901974abc 200 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 201 }
Azure.IoT Build 0:ef4901974abc 202 else
Azure.IoT Build 0:ef4901974abc 203 {
Azure.IoT Build 0:ef4901974abc 204 result = xio_send(clientData->xioHandle, data, length, sendComplete, clientData);
Azure.IoT Build 0:ef4901974abc 205 if (result != 0)
Azure.IoT Build 0:ef4901974abc 206 {
Azure.IoT Build 0:ef4901974abc 207 LOG(clientData->logFunc, LOG_LINE, "%d: Failure sending control packet data", result);
Azure.IoT Build 0:ef4901974abc 208 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 209 }
Azure.IoT Build 0:ef4901974abc 210 }
Azure.IoT Build 0:ef4901974abc 211 return result;
Azure.IoT Build 0:ef4901974abc 212 }
Azure.IoT Build 0:ef4901974abc 213
Azure.IoT Build 0:ef4901974abc 214 static void onOpenComplete(void* context, IO_OPEN_RESULT open_result)
Azure.IoT Build 0:ef4901974abc 215 {
Azure.IoT Build 0:ef4901974abc 216 MQTT_CLIENT* mqttData = (MQTT_CLIENT*)context;
Azure.IoT Build 0:ef4901974abc 217 if (mqttData != NULL)
Azure.IoT Build 0:ef4901974abc 218 {
Azure.IoT Build 0:ef4901974abc 219 if (open_result == IO_OPEN_OK && !mqttData->socketConnected)
Azure.IoT Build 0:ef4901974abc 220 {
Azure.IoT Build 0:ef4901974abc 221 mqttData->packetState = CONNECT_TYPE;
Azure.IoT Build 0:ef4901974abc 222 mqttData->socketConnected = true;
Azure.IoT Build 0:ef4901974abc 223 // Send the Connect packet
Azure.IoT Build 0:ef4901974abc 224 BUFFER_HANDLE connPacket = mqtt_codec_connect(&mqttData->mqttOptions);
Azure.IoT Build 0:ef4901974abc 225 if (connPacket == NULL)
Azure.IoT Build 0:ef4901974abc 226 {
Azure.IoT Build 0:ef4901974abc 227 /*Codes_SRS_MQTT_CLIENT_07_007: [If any failure is encountered then mqtt_client_connect shall return a non-zero value.]*/
Azure.IoT Build 0:ef4901974abc 228 LOG(mqttData->logFunc, LOG_LINE, "Error: mqtt_codec_connect failed");
Azure.IoT Build 0:ef4901974abc 229 }
Azure.IoT Build 0:ef4901974abc 230 else
Azure.IoT Build 0:ef4901974abc 231 {
Azure.IoT Build 0:ef4901974abc 232 /*Codes_SRS_MQTT_CLIENT_07_009: [On success mqtt_client_connect shall send the MQTT CONNECT to the endpoint.]*/
Azure.IoT Build 0:ef4901974abc 233 if (sendPacketItem(mqttData, BUFFER_u_char(connPacket), BUFFER_length(connPacket)) != 0)
Azure.IoT Build 0:ef4901974abc 234 {
Azure.IoT Build 0:ef4901974abc 235 /*Codes_SRS_MQTT_CLIENT_07_007: [If any failure is encountered then mqtt_client_connect shall return a non-zero value.]*/
Azure.IoT Build 0:ef4901974abc 236 LOG(mqttData->logFunc, LOG_LINE, "Error: mqtt_codec_connect failed");
Azure.IoT Build 0:ef4901974abc 237 }
Azure.IoT Build 0:ef4901974abc 238 BUFFER_delete(connPacket);
Azure.IoT Build 0:ef4901974abc 239 }
Azure.IoT Build 0:ef4901974abc 240 }
Azure.IoT Build 0:ef4901974abc 241 else if (open_result == IO_OPEN_ERROR)
Azure.IoT Build 0:ef4901974abc 242 {
Azure.IoT Build 0:ef4901974abc 243 (void)mqttData->fnOperationCallback(mqttData, MQTT_CLIENT_ON_ERROR, NULL, mqttData->ctx);
Azure.IoT Build 0:ef4901974abc 244 }
Azure.IoT Build 0:ef4901974abc 245 }
Azure.IoT Build 0:ef4901974abc 246 }
Azure.IoT Build 0:ef4901974abc 247
Azure.IoT Build 0:ef4901974abc 248 static void onBytesReceived(void* context, const unsigned char* buffer, size_t size)
Azure.IoT Build 0:ef4901974abc 249 {
Azure.IoT Build 0:ef4901974abc 250 MQTT_CLIENT* mqttData = (MQTT_CLIENT*)context;
Azure.IoT Build 0:ef4901974abc 251 if (mqttData != NULL)
Azure.IoT Build 0:ef4901974abc 252 {
Azure.IoT Build 0:ef4901974abc 253 if (mqtt_codec_bytesReceived(mqttData->codec_handle, buffer, size) != 0)
Azure.IoT Build 0:ef4901974abc 254 {
Azure.IoT Build 0:ef4901974abc 255 if (mqttData->fnOperationCallback)
Azure.IoT Build 0:ef4901974abc 256 {
Azure.IoT Build 0:ef4901974abc 257 mqttData->fnOperationCallback(mqttData, MQTT_CLIENT_ON_ERROR, NULL, mqttData->ctx);
Azure.IoT Build 0:ef4901974abc 258 }
Azure.IoT Build 0:ef4901974abc 259 }
Azure.IoT Build 0:ef4901974abc 260 }
Azure.IoT Build 0:ef4901974abc 261 }
Azure.IoT Build 0:ef4901974abc 262
Azure.IoT Build 0:ef4901974abc 263 static void onIoError(void* context)
Azure.IoT Build 0:ef4901974abc 264 {
Azure.IoT Build 0:ef4901974abc 265 MQTT_CLIENT* mqttData = (MQTT_CLIENT*)context;
Azure.IoT Build 0:ef4901974abc 266 if (mqttData != NULL && mqttData->fnOperationCallback)
Azure.IoT Build 0:ef4901974abc 267 {
Azure.IoT Build 0:ef4901974abc 268 /*Codes_SRS_MQTT_CLIENT_07_032: [If the actionResult parameter is of type MQTT_CLIENT_ON_DISCONNECT or MQTT_CLIENT_ON_ERROR the the msgInfo value shall be NULL.]*/
Azure.IoT Build 0:ef4901974abc 269 mqttData->fnOperationCallback(mqttData, MQTT_CLIENT_ON_ERROR, NULL, mqttData->ctx);
Azure.IoT Build 0:ef4901974abc 270 mqttData->socketConnected = false;
Azure.IoT Build 0:ef4901974abc 271 }
Azure.IoT Build 0:ef4901974abc 272 }
Azure.IoT Build 0:ef4901974abc 273
Azure.IoT Build 0:ef4901974abc 274 static int cloneMqttOptions(MQTT_CLIENT* mqttData, const MQTT_CLIENT_OPTIONS* mqttOptions)
Azure.IoT Build 0:ef4901974abc 275 {
Azure.IoT Build 0:ef4901974abc 276 int result = 0;
Azure.IoT Build 0:ef4901974abc 277 if (mqttOptions->clientId != NULL)
Azure.IoT Build 0:ef4901974abc 278 {
Azure.IoT Build 0:ef4901974abc 279 if (mallocAndStrcpy_s(&mqttData->mqttOptions.clientId, mqttOptions->clientId) != 0)
Azure.IoT Build 0:ef4901974abc 280 {
Azure.IoT Build 0:ef4901974abc 281 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 282 }
Azure.IoT Build 0:ef4901974abc 283 }
Azure.IoT Build 0:ef4901974abc 284 if (result == 0 && mqttOptions->willTopic != NULL)
Azure.IoT Build 0:ef4901974abc 285 {
Azure.IoT Build 0:ef4901974abc 286 if (mallocAndStrcpy_s(&mqttData->mqttOptions.willTopic, mqttOptions->willTopic) != 0)
Azure.IoT Build 0:ef4901974abc 287 {
Azure.IoT Build 0:ef4901974abc 288 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 289 }
Azure.IoT Build 0:ef4901974abc 290 }
Azure.IoT Build 0:ef4901974abc 291 if (result == 0 && mqttOptions->willMessage != NULL)
Azure.IoT Build 0:ef4901974abc 292 {
Azure.IoT Build 0:ef4901974abc 293 if (mallocAndStrcpy_s(&mqttData->mqttOptions.willMessage, mqttOptions->willMessage) != 0)
Azure.IoT Build 0:ef4901974abc 294 {
Azure.IoT Build 0:ef4901974abc 295 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 296 }
Azure.IoT Build 0:ef4901974abc 297 }
Azure.IoT Build 0:ef4901974abc 298 if (result == 0 && mqttOptions->username != NULL)
Azure.IoT Build 0:ef4901974abc 299 {
Azure.IoT Build 0:ef4901974abc 300 if (mallocAndStrcpy_s(&mqttData->mqttOptions.username, mqttOptions->username) != 0)
Azure.IoT Build 0:ef4901974abc 301 {
Azure.IoT Build 0:ef4901974abc 302 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 303 }
Azure.IoT Build 0:ef4901974abc 304 }
Azure.IoT Build 0:ef4901974abc 305 if (result == 0 && mqttOptions->password != NULL)
Azure.IoT Build 0:ef4901974abc 306 {
Azure.IoT Build 0:ef4901974abc 307 if (mallocAndStrcpy_s(&mqttData->mqttOptions.password, mqttOptions->password) != 0)
Azure.IoT Build 0:ef4901974abc 308 {
Azure.IoT Build 0:ef4901974abc 309 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 310 }
Azure.IoT Build 0:ef4901974abc 311 }
Azure.IoT Build 0:ef4901974abc 312 if (result == 0)
Azure.IoT Build 0:ef4901974abc 313 {
Azure.IoT Build 0:ef4901974abc 314 mqttData->mqttOptions.keepAliveInterval = mqttOptions->keepAliveInterval;
Azure.IoT Build 0:ef4901974abc 315 mqttData->mqttOptions.messageRetain = mqttOptions->messageRetain;
Azure.IoT Build 0:ef4901974abc 316 mqttData->mqttOptions.useCleanSession = mqttOptions->useCleanSession;
Azure.IoT Build 0:ef4901974abc 317 mqttData->mqttOptions.qualityOfServiceValue = mqttOptions->qualityOfServiceValue;
Azure.IoT Build 0:ef4901974abc 318 }
Azure.IoT Build 0:ef4901974abc 319 else
Azure.IoT Build 0:ef4901974abc 320 {
Azure.IoT Build 0:ef4901974abc 321 free(mqttData->mqttOptions.clientId);
Azure.IoT Build 0:ef4901974abc 322 free(mqttData->mqttOptions.willTopic);
Azure.IoT Build 0:ef4901974abc 323 free(mqttData->mqttOptions.willMessage);
Azure.IoT Build 0:ef4901974abc 324 free(mqttData->mqttOptions.username);
Azure.IoT Build 0:ef4901974abc 325 free(mqttData->mqttOptions.password);
Azure.IoT Build 0:ef4901974abc 326 }
Azure.IoT Build 0:ef4901974abc 327 return result;
Azure.IoT Build 0:ef4901974abc 328 }
Azure.IoT Build 0:ef4901974abc 329
Azure.IoT Build 0:ef4901974abc 330 static void recvCompleteCallback(void* context, CONTROL_PACKET_TYPE packet, int flags, BUFFER_HANDLE headerData)
Azure.IoT Build 0:ef4901974abc 331 {
Azure.IoT Build 0:ef4901974abc 332 MQTT_CLIENT* mqttData = (MQTT_CLIENT*)context;
AzureIoTClient 3:9b4e7158ca0d 333 if ((mqttData != NULL && headerData != NULL) || packet == PINGRESP_TYPE)
Azure.IoT Build 0:ef4901974abc 334 {
Azure.IoT Build 0:ef4901974abc 335 size_t len = BUFFER_length(headerData);
Azure.IoT Build 0:ef4901974abc 336 uint8_t* iterator = BUFFER_u_char(headerData);
Azure.IoT Build 0:ef4901974abc 337
Azure.IoT Build 0:ef4901974abc 338 logIncomingMsgTrace(mqttData, packet, flags, iterator, len);
Azure.IoT Build 0:ef4901974abc 339
AzureIoTClient 3:9b4e7158ca0d 340 if ((iterator != NULL && len > 0) || packet == PINGRESP_TYPE)
Azure.IoT Build 0:ef4901974abc 341 {
Azure.IoT Build 0:ef4901974abc 342 switch (packet)
Azure.IoT Build 0:ef4901974abc 343 {
AzureIoTClient 3:9b4e7158ca0d 344 case CONNACK_TYPE:
Azure.IoT Build 0:ef4901974abc 345 {
AzureIoTClient 3:9b4e7158ca0d 346 if (mqttData->fnOperationCallback != NULL)
AzureIoTClient 3:9b4e7158ca0d 347 {
AzureIoTClient 3:9b4e7158ca0d 348 /*Codes_SRS_MQTT_CLIENT_07_028: [If the actionResult parameter is of type CONNECT_ACK then the msgInfo value shall be a CONNECT_ACK structure.]*/
AzureIoTClient 3:9b4e7158ca0d 349 CONNECT_ACK connack = { 0 };
AzureIoTClient 3:9b4e7158ca0d 350 connack.isSessionPresent = (byteutil_readByte(&iterator) == 0x1) ? true : false;
AzureIoTClient 3:9b4e7158ca0d 351 connack.returnCode = byteutil_readByte(&iterator);
Azure.IoT Build 0:ef4901974abc 352
AzureIoTClient 3:9b4e7158ca0d 353 mqttData->fnOperationCallback(mqttData, MQTT_CLIENT_ON_CONNACK, (void*)&connack, mqttData->ctx);
AzureIoTClient 3:9b4e7158ca0d 354
AzureIoTClient 3:9b4e7158ca0d 355 if (connack.returnCode == CONNECTION_ACCEPTED)
AzureIoTClient 3:9b4e7158ca0d 356 {
AzureIoTClient 3:9b4e7158ca0d 357 mqttData->clientConnected = true;
AzureIoTClient 3:9b4e7158ca0d 358 }
Azure.IoT Build 0:ef4901974abc 359 }
AzureIoTClient 3:9b4e7158ca0d 360 break;
Azure.IoT Build 0:ef4901974abc 361 }
AzureIoTClient 3:9b4e7158ca0d 362 case PUBLISH_TYPE:
Azure.IoT Build 0:ef4901974abc 363 {
AzureIoTClient 3:9b4e7158ca0d 364 if (mqttData->fnMessageRecv != NULL)
AzureIoTClient 3:9b4e7158ca0d 365 {
AzureIoTClient 3:9b4e7158ca0d 366 //uint8_t ctrlPacket = byteutil_readByte(&iterator);
AzureIoTClient 3:9b4e7158ca0d 367 bool isDuplicateMsg = (flags & DUPLICATE_FLAG_MASK) ? true : false;
AzureIoTClient 3:9b4e7158ca0d 368 bool isRetainMsg = (flags & RETAIN_FLAG_MASK) ? true : false;
AzureIoTClient 3:9b4e7158ca0d 369 QOS_VALUE qosValue = (flags == 0) ? DELIVER_AT_MOST_ONCE : (flags & QOS_LEAST_ONCE_FLAG_MASK) ? DELIVER_AT_LEAST_ONCE : DELIVER_EXACTLY_ONCE;
AzureIoTClient 3:9b4e7158ca0d 370
AzureIoTClient 3:9b4e7158ca0d 371 uint8_t* initialPos = iterator;
AzureIoTClient 3:9b4e7158ca0d 372 char* topicName = byteutil_readUTF(&iterator, NULL);
AzureIoTClient 3:9b4e7158ca0d 373 uint16_t packetId = 0;
AzureIoTClient 3:9b4e7158ca0d 374 if (qosValue != DELIVER_AT_MOST_ONCE)
AzureIoTClient 3:9b4e7158ca0d 375 {
AzureIoTClient 3:9b4e7158ca0d 376 packetId = byteutil_read_uint16(&iterator);
AzureIoTClient 3:9b4e7158ca0d 377 }
AzureIoTClient 3:9b4e7158ca0d 378 size_t length = len - (iterator - initialPos);
Azure.IoT Build 0:ef4901974abc 379
AzureIoTClient 3:9b4e7158ca0d 380 MQTT_MESSAGE_HANDLE msgHandle = mqttmessage_create(packetId, topicName, qosValue, iterator, length);
AzureIoTClient 3:9b4e7158ca0d 381 if (msgHandle == NULL)
AzureIoTClient 3:9b4e7158ca0d 382 {
AzureIoTClient 3:9b4e7158ca0d 383 LOG(mqttData->logFunc, LOG_LINE, "failure in mqttmessage_create");
AzureIoTClient 3:9b4e7158ca0d 384 }
AzureIoTClient 3:9b4e7158ca0d 385 else
AzureIoTClient 3:9b4e7158ca0d 386 {
AzureIoTClient 3:9b4e7158ca0d 387 (void)mqttmessage_setIsDuplicateMsg(msgHandle, isDuplicateMsg);
AzureIoTClient 3:9b4e7158ca0d 388 (void)mqttmessage_setIsRetained(msgHandle, isRetainMsg);
AzureIoTClient 3:9b4e7158ca0d 389 mqttData->fnMessageRecv(msgHandle, mqttData->ctx);
AzureIoTClient 3:9b4e7158ca0d 390
AzureIoTClient 3:9b4e7158ca0d 391 BUFFER_HANDLE pubRel = NULL;
AzureIoTClient 3:9b4e7158ca0d 392 if (qosValue == DELIVER_EXACTLY_ONCE)
AzureIoTClient 3:9b4e7158ca0d 393 {
AzureIoTClient 3:9b4e7158ca0d 394 pubRel = mqtt_codec_publishReceived(packetId);
AzureIoTClient 3:9b4e7158ca0d 395 }
AzureIoTClient 3:9b4e7158ca0d 396 else if (qosValue == DELIVER_AT_LEAST_ONCE)
AzureIoTClient 3:9b4e7158ca0d 397 {
AzureIoTClient 3:9b4e7158ca0d 398 pubRel = mqtt_codec_publishAck(packetId);
AzureIoTClient 3:9b4e7158ca0d 399 }
AzureIoTClient 3:9b4e7158ca0d 400 if (pubRel != NULL)
AzureIoTClient 3:9b4e7158ca0d 401 {
AzureIoTClient 3:9b4e7158ca0d 402 (void)sendPacketItem(mqttData, BUFFER_u_char(pubRel), BUFFER_length(pubRel));
AzureIoTClient 3:9b4e7158ca0d 403 BUFFER_delete(pubRel);
AzureIoTClient 3:9b4e7158ca0d 404 }
AzureIoTClient 3:9b4e7158ca0d 405 free(topicName);
AzureIoTClient 3:9b4e7158ca0d 406 mqttmessage_destroy(msgHandle);
AzureIoTClient 3:9b4e7158ca0d 407 }
Azure.IoT Build 0:ef4901974abc 408 }
AzureIoTClient 3:9b4e7158ca0d 409 break;
AzureIoTClient 3:9b4e7158ca0d 410 }
AzureIoTClient 3:9b4e7158ca0d 411 case PUBACK_TYPE:
AzureIoTClient 3:9b4e7158ca0d 412 case PUBREC_TYPE:
AzureIoTClient 3:9b4e7158ca0d 413 case PUBREL_TYPE:
AzureIoTClient 3:9b4e7158ca0d 414 case PUBCOMP_TYPE:
AzureIoTClient 3:9b4e7158ca0d 415 {
AzureIoTClient 3:9b4e7158ca0d 416 if (mqttData->fnOperationCallback)
Azure.IoT Build 0:ef4901974abc 417 {
AzureIoTClient 3:9b4e7158ca0d 418 /*Codes_SRS_MQTT_CLIENT_07_029: [If the actionResult parameter are of types PUBACK_TYPE, PUBREC_TYPE, PUBREL_TYPE or PUBCOMP_TYPE then the msgInfo value shall be a PUBLISH_ACK structure.]*/
AzureIoTClient 3:9b4e7158ca0d 419 MQTT_CLIENT_EVENT_RESULT action = (packet == PUBACK_TYPE) ? MQTT_CLIENT_ON_PUBLISH_ACK :
AzureIoTClient 3:9b4e7158ca0d 420 (packet == PUBREC_TYPE) ? MQTT_CLIENT_ON_PUBLISH_RECV :
AzureIoTClient 3:9b4e7158ca0d 421 (packet == PUBREL_TYPE) ? MQTT_CLIENT_ON_PUBLISH_REL : MQTT_CLIENT_ON_PUBLISH_COMP;
AzureIoTClient 3:9b4e7158ca0d 422
AzureIoTClient 3:9b4e7158ca0d 423 PUBLISH_ACK publish_ack = { 0 };
AzureIoTClient 3:9b4e7158ca0d 424 publish_ack.packetId = byteutil_read_uint16(&iterator);
Azure.IoT Build 0:ef4901974abc 425
Azure.IoT Build 0:ef4901974abc 426 BUFFER_HANDLE pubRel = NULL;
AzureIoTClient 3:9b4e7158ca0d 427 mqttData->fnOperationCallback(mqttData, action, (void*)&publish_ack, mqttData->ctx);
AzureIoTClient 3:9b4e7158ca0d 428 if (packet == PUBREC_TYPE)
Azure.IoT Build 0:ef4901974abc 429 {
AzureIoTClient 3:9b4e7158ca0d 430 pubRel = mqtt_codec_publishRelease(publish_ack.packetId);
Azure.IoT Build 0:ef4901974abc 431 }
AzureIoTClient 3:9b4e7158ca0d 432 else if (packet == PUBREL_TYPE)
Azure.IoT Build 0:ef4901974abc 433 {
AzureIoTClient 3:9b4e7158ca0d 434 pubRel = mqtt_codec_publishComplete(publish_ack.packetId);
Azure.IoT Build 0:ef4901974abc 435 }
Azure.IoT Build 0:ef4901974abc 436 if (pubRel != NULL)
Azure.IoT Build 0:ef4901974abc 437 {
Azure.IoT Build 0:ef4901974abc 438 (void)sendPacketItem(mqttData, BUFFER_u_char(pubRel), BUFFER_length(pubRel));
Azure.IoT Build 0:ef4901974abc 439 BUFFER_delete(pubRel);
Azure.IoT Build 0:ef4901974abc 440 }
Azure.IoT Build 0:ef4901974abc 441 }
AzureIoTClient 3:9b4e7158ca0d 442 break;
Azure.IoT Build 0:ef4901974abc 443 }
AzureIoTClient 3:9b4e7158ca0d 444 case SUBACK_TYPE:
Azure.IoT Build 0:ef4901974abc 445 {
AzureIoTClient 3:9b4e7158ca0d 446 if (mqttData->fnOperationCallback)
AzureIoTClient 3:9b4e7158ca0d 447 {
AzureIoTClient 3:9b4e7158ca0d 448 /*Codes_SRS_MQTT_CLIENT_07_030: [If the actionResult parameter is of type SUBACK_TYPE then the msgInfo value shall be a SUBSCRIBE_ACK structure.]*/
AzureIoTClient 3:9b4e7158ca0d 449 SUBSCRIBE_ACK suback = { 0 };
AzureIoTClient 3:9b4e7158ca0d 450
AzureIoTClient 3:9b4e7158ca0d 451 size_t remainLen = len;
AzureIoTClient 3:9b4e7158ca0d 452 suback.packetId = byteutil_read_uint16(&iterator);
AzureIoTClient 3:9b4e7158ca0d 453 remainLen -= 2;
Azure.IoT Build 0:ef4901974abc 454
AzureIoTClient 3:9b4e7158ca0d 455 // Allocate the remaining len
AzureIoTClient 3:9b4e7158ca0d 456 suback.qosReturn = (QOS_VALUE*)malloc(sizeof(QOS_VALUE)*remainLen);
AzureIoTClient 3:9b4e7158ca0d 457 if (suback.qosReturn != NULL)
Azure.IoT Build 0:ef4901974abc 458 {
AzureIoTClient 3:9b4e7158ca0d 459 while (remainLen > 0)
AzureIoTClient 3:9b4e7158ca0d 460 {
AzureIoTClient 3:9b4e7158ca0d 461 suback.qosReturn[suback.qosCount++] = byteutil_readByte(&iterator);
AzureIoTClient 3:9b4e7158ca0d 462 remainLen--;
AzureIoTClient 3:9b4e7158ca0d 463 }
AzureIoTClient 3:9b4e7158ca0d 464 (void)mqttData->fnOperationCallback(mqttData, MQTT_CLIENT_ON_SUBSCRIBE_ACK, (void*)&suback, mqttData->ctx);
AzureIoTClient 3:9b4e7158ca0d 465 free(suback.qosReturn);
Azure.IoT Build 0:ef4901974abc 466 }
Azure.IoT Build 0:ef4901974abc 467 }
AzureIoTClient 3:9b4e7158ca0d 468 break;
Azure.IoT Build 0:ef4901974abc 469 }
AzureIoTClient 3:9b4e7158ca0d 470 case UNSUBACK_TYPE:
Azure.IoT Build 0:ef4901974abc 471 {
AzureIoTClient 3:9b4e7158ca0d 472 if (mqttData->fnOperationCallback)
AzureIoTClient 3:9b4e7158ca0d 473 {
AzureIoTClient 3:9b4e7158ca0d 474 /*Codes_SRS_MQTT_CLIENT_07_031: [If the actionResult parameter is of type UNSUBACK_TYPE then the msgInfo value shall be a UNSUBSCRIBE_ACK structure.]*/
AzureIoTClient 3:9b4e7158ca0d 475 UNSUBSCRIBE_ACK unsuback = { 0 };
AzureIoTClient 3:9b4e7158ca0d 476 iterator += VARIABLE_HEADER_OFFSET;
AzureIoTClient 3:9b4e7158ca0d 477 unsuback.packetId = byteutil_read_uint16(&iterator);
Azure.IoT Build 0:ef4901974abc 478
AzureIoTClient 3:9b4e7158ca0d 479 (void)mqttData->fnOperationCallback(mqttData, MQTT_CLIENT_ON_UNSUBSCRIBE_ACK, (void*)&unsuback, mqttData->ctx);
AzureIoTClient 3:9b4e7158ca0d 480 }
AzureIoTClient 3:9b4e7158ca0d 481 break;
Azure.IoT Build 0:ef4901974abc 482 }
AzureIoTClient 3:9b4e7158ca0d 483 case PINGRESP_TYPE:
AzureIoTClient 3:9b4e7158ca0d 484 mqttData->timeSincePing = 0;
AzureIoTClient 3:9b4e7158ca0d 485 // Ping responses do not get forwarded
AzureIoTClient 3:9b4e7158ca0d 486 break;
AzureIoTClient 3:9b4e7158ca0d 487 default:
AzureIoTClient 3:9b4e7158ca0d 488 break;
Azure.IoT Build 0:ef4901974abc 489 }
Azure.IoT Build 0:ef4901974abc 490 }
Azure.IoT Build 0:ef4901974abc 491 }
Azure.IoT Build 0:ef4901974abc 492 }
Azure.IoT Build 0:ef4901974abc 493
Azure.IoT Build 0:ef4901974abc 494 MQTT_CLIENT_HANDLE mqtt_client_init(ON_MQTT_MESSAGE_RECV_CALLBACK msgRecv, ON_MQTT_OPERATION_CALLBACK opCallback, void* callbackCtx, LOGGER_LOG logger)
Azure.IoT Build 0:ef4901974abc 495 {
Azure.IoT Build 0:ef4901974abc 496 MQTT_CLIENT* result;
Azure.IoT Build 0:ef4901974abc 497 /*Codes_SRS_MQTT_CLIENT_07_001: [If the parameters ON_MQTT_MESSAGE_RECV_CALLBACK is NULL then mqttclient_init shall return NULL.]*/
Azure.IoT Build 0:ef4901974abc 498 if (msgRecv == NULL)
Azure.IoT Build 0:ef4901974abc 499 {
Azure.IoT Build 0:ef4901974abc 500 result = NULL;
Azure.IoT Build 0:ef4901974abc 501 }
Azure.IoT Build 0:ef4901974abc 502 else
Azure.IoT Build 0:ef4901974abc 503 {
Azure.IoT Build 0:ef4901974abc 504 result = malloc(sizeof(MQTT_CLIENT));
Azure.IoT Build 0:ef4901974abc 505 if (result == NULL)
Azure.IoT Build 0:ef4901974abc 506 {
Azure.IoT Build 0:ef4901974abc 507 /*Codes_SRS_MQTT_CLIENT_07_002: [If any failure is encountered then mqttclient_init shall return NULL.]*/
Azure.IoT Build 0:ef4901974abc 508 LOG(logger, LOG_LINE, "mqtt_client_inti failure: Allocation Failure");
Azure.IoT Build 0:ef4901974abc 509 }
Azure.IoT Build 0:ef4901974abc 510 else
Azure.IoT Build 0:ef4901974abc 511 {
Azure.IoT Build 0:ef4901974abc 512 /*Codes_SRS_MQTT_CLIENT_07_003: [mqttclient_init shall allocate MQTTCLIENT_DATA_INSTANCE and return the MQTTCLIENT_HANDLE on success.]*/
Azure.IoT Build 0:ef4901974abc 513 result->xioHandle = NULL;
Azure.IoT Build 0:ef4901974abc 514 result->packetState = UNKNOWN_TYPE;
Azure.IoT Build 0:ef4901974abc 515 result->logFunc = logger;
Azure.IoT Build 0:ef4901974abc 516 result->packetSendTimeMs = 0;
Azure.IoT Build 0:ef4901974abc 517 result->fnOperationCallback = opCallback;
Azure.IoT Build 0:ef4901974abc 518 result->fnMessageRecv = msgRecv;
Azure.IoT Build 0:ef4901974abc 519 result->ctx = callbackCtx;
Azure.IoT Build 0:ef4901974abc 520 result->qosValue = DELIVER_AT_MOST_ONCE;
Azure.IoT Build 0:ef4901974abc 521 result->keepAliveInterval = 0;
Azure.IoT Build 0:ef4901974abc 522 result->packetTickCntr = tickcounter_create();
Azure.IoT Build 0:ef4901974abc 523 result->mqttOptions.clientId = NULL;
Azure.IoT Build 0:ef4901974abc 524 result->mqttOptions.willTopic = NULL;
Azure.IoT Build 0:ef4901974abc 525 result->mqttOptions.willMessage = NULL;
Azure.IoT Build 0:ef4901974abc 526 result->mqttOptions.username = NULL;
Azure.IoT Build 0:ef4901974abc 527 result->mqttOptions.password = NULL;
Azure.IoT Build 0:ef4901974abc 528 result->socketConnected = false;
Azure.IoT Build 0:ef4901974abc 529 result->clientConnected = false;
Azure.IoT Build 0:ef4901974abc 530 result->logTrace = false;
Azure.IoT Build 0:ef4901974abc 531 result->rawBytesTrace = false;
AzureIoTClient 3:9b4e7158ca0d 532 result->timeSincePing = 0;
AzureIoTClient 3:9b4e7158ca0d 533 result->maxPingRespTime = DEFAULT_MAX_PING_RESPONSE_TIME;
Azure.IoT Build 0:ef4901974abc 534 if (result->packetTickCntr == NULL)
Azure.IoT Build 0:ef4901974abc 535 {
Azure.IoT Build 0:ef4901974abc 536 /*Codes_SRS_MQTT_CLIENT_07_002: [If any failure is encountered then mqttclient_init shall return NULL.]*/
Azure.IoT Build 0:ef4901974abc 537 LOG(logger, LOG_LINE, "mqtt_client_init failure: tickcounter_create failure");
Azure.IoT Build 0:ef4901974abc 538 free(result);
Azure.IoT Build 0:ef4901974abc 539 result = NULL;
Azure.IoT Build 0:ef4901974abc 540 }
Azure.IoT Build 0:ef4901974abc 541 else
Azure.IoT Build 0:ef4901974abc 542 {
Azure.IoT Build 0:ef4901974abc 543 result->codec_handle = mqtt_codec_create(recvCompleteCallback, result);
Azure.IoT Build 0:ef4901974abc 544 if (result->codec_handle == NULL)
Azure.IoT Build 0:ef4901974abc 545 {
Azure.IoT Build 0:ef4901974abc 546 /*Codes_SRS_MQTT_CLIENT_07_002: [If any failure is encountered then mqttclient_init shall return NULL.]*/
Azure.IoT Build 0:ef4901974abc 547 LOG(logger, LOG_LINE, "mqtt_client_init failure: mqtt_codec_create failure");
Azure.IoT Build 0:ef4901974abc 548 tickcounter_destroy(result->packetTickCntr);
Azure.IoT Build 0:ef4901974abc 549 free(result);
Azure.IoT Build 0:ef4901974abc 550 result = NULL;
Azure.IoT Build 0:ef4901974abc 551 }
Azure.IoT Build 0:ef4901974abc 552 }
Azure.IoT Build 0:ef4901974abc 553 }
Azure.IoT Build 0:ef4901974abc 554 }
Azure.IoT Build 0:ef4901974abc 555 return result;
Azure.IoT Build 0:ef4901974abc 556 }
Azure.IoT Build 0:ef4901974abc 557
Azure.IoT Build 0:ef4901974abc 558 void mqtt_client_deinit(MQTT_CLIENT_HANDLE handle)
Azure.IoT Build 0:ef4901974abc 559 {
Azure.IoT Build 0:ef4901974abc 560 /*Codes_SRS_MQTT_CLIENT_07_004: [If the parameter handle is NULL then function mqtt_client_deinit shall do nothing.]*/
Azure.IoT Build 0:ef4901974abc 561 if (handle != NULL)
Azure.IoT Build 0:ef4901974abc 562 {
Azure.IoT Build 0:ef4901974abc 563 /*Codes_SRS_MQTT_CLIENT_07_005: [mqtt_client_deinit shall deallocate all memory allocated in this unit.]*/
Azure.IoT Build 0:ef4901974abc 564 MQTT_CLIENT* mqttData = (MQTT_CLIENT*)handle;
Azure.IoT Build 0:ef4901974abc 565 tickcounter_destroy(mqttData->packetTickCntr);
Azure.IoT Build 0:ef4901974abc 566 mqtt_codec_destroy(mqttData->codec_handle);
Azure.IoT Build 0:ef4901974abc 567 free(mqttData->mqttOptions.clientId);
Azure.IoT Build 0:ef4901974abc 568 free(mqttData->mqttOptions.willTopic);
Azure.IoT Build 0:ef4901974abc 569 free(mqttData->mqttOptions.willMessage);
Azure.IoT Build 0:ef4901974abc 570 free(mqttData->mqttOptions.username);
Azure.IoT Build 0:ef4901974abc 571 free(mqttData->mqttOptions.password);
Azure.IoT Build 0:ef4901974abc 572 free(mqttData);
Azure.IoT Build 0:ef4901974abc 573 }
Azure.IoT Build 0:ef4901974abc 574 }
Azure.IoT Build 0:ef4901974abc 575
Azure.IoT Build 0:ef4901974abc 576 int mqtt_client_connect(MQTT_CLIENT_HANDLE handle, XIO_HANDLE xioHandle, MQTT_CLIENT_OPTIONS* mqttOptions)
Azure.IoT Build 0:ef4901974abc 577 {
Azure.IoT Build 0:ef4901974abc 578 int result;
Azure.IoT Build 0:ef4901974abc 579 /*SRS_MQTT_CLIENT_07_006: [If any of the parameters handle, ioHandle, or mqttOptions are NULL then mqtt_client_connect shall return a non-zero value.]*/
Azure.IoT Build 0:ef4901974abc 580 if (handle == NULL || mqttOptions == NULL)
Azure.IoT Build 0:ef4901974abc 581 {
Azure.IoT Build 0:ef4901974abc 582 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 583 }
Azure.IoT Build 0:ef4901974abc 584 else
Azure.IoT Build 0:ef4901974abc 585 {
Azure.IoT Build 0:ef4901974abc 586 MQTT_CLIENT* mqttData = (MQTT_CLIENT*)handle;
Azure.IoT Build 0:ef4901974abc 587 if (xioHandle == NULL)
Azure.IoT Build 0:ef4901974abc 588 {
Azure.IoT Build 0:ef4901974abc 589 /*Codes_SRS_MQTT_CLIENT_07_007: [If any failure is encountered then mqtt_client_connect shall return a non-zero value.]*/
Azure.IoT Build 0:ef4901974abc 590 LOG(mqttData->logFunc, LOG_LINE, "Error: mqttcodec_connect failed");
Azure.IoT Build 0:ef4901974abc 591 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 592 }
Azure.IoT Build 0:ef4901974abc 593 else
Azure.IoT Build 0:ef4901974abc 594 {
Azure.IoT Build 0:ef4901974abc 595 mqttData->xioHandle = xioHandle;
Azure.IoT Build 0:ef4901974abc 596 mqttData->packetState = UNKNOWN_TYPE;
Azure.IoT Build 0:ef4901974abc 597 mqttData->qosValue = mqttOptions->qualityOfServiceValue;
Azure.IoT Build 0:ef4901974abc 598 mqttData->keepAliveInterval = mqttOptions->keepAliveInterval;
AzureIoTClient 3:9b4e7158ca0d 599 mqttData->maxPingRespTime = (DEFAULT_MAX_PING_RESPONSE_TIME < mqttOptions->keepAliveInterval/2) ? DEFAULT_MAX_PING_RESPONSE_TIME : mqttOptions->keepAliveInterval/2;
Azure.IoT Build 0:ef4901974abc 600 if (cloneMqttOptions(mqttData, mqttOptions) != 0)
Azure.IoT Build 0:ef4901974abc 601 {
Azure.IoT Build 0:ef4901974abc 602 LOG(mqttData->logFunc, LOG_LINE, "Error: Clone Mqtt Options failed");
Azure.IoT Build 0:ef4901974abc 603 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 604 }
Azure.IoT Build 0:ef4901974abc 605 /*Codes_SRS_MQTT_CLIENT_07_008: [mqtt_client_connect shall open the XIO_HANDLE by calling into the xio_open interface.]*/
Azure.IoT Build 0:ef4901974abc 606 else if (xio_open(xioHandle, onOpenComplete, mqttData, onBytesReceived, mqttData, onIoError, mqttData) != 0)
Azure.IoT Build 0:ef4901974abc 607 {
Azure.IoT Build 0:ef4901974abc 608 /*Codes_SRS_MQTT_CLIENT_07_007: [If any failure is encountered then mqtt_client_connect shall return a non-zero value.]*/
Azure.IoT Build 0:ef4901974abc 609 LOG(mqttData->logFunc, LOG_LINE, "Error: io_open failed");
Azure.IoT Build 0:ef4901974abc 610 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 611 }
Azure.IoT Build 0:ef4901974abc 612 else
Azure.IoT Build 0:ef4901974abc 613 {
Azure.IoT Build 0:ef4901974abc 614 result = 0;
Azure.IoT Build 0:ef4901974abc 615 }
Azure.IoT Build 0:ef4901974abc 616 }
Azure.IoT Build 0:ef4901974abc 617 }
Azure.IoT Build 0:ef4901974abc 618 return result;
Azure.IoT Build 0:ef4901974abc 619 }
Azure.IoT Build 0:ef4901974abc 620
Azure.IoT Build 0:ef4901974abc 621 int mqtt_client_publish(MQTT_CLIENT_HANDLE handle, MQTT_MESSAGE_HANDLE msgHandle)
Azure.IoT Build 0:ef4901974abc 622 {
Azure.IoT Build 0:ef4901974abc 623 int result;
Azure.IoT Build 0:ef4901974abc 624 MQTT_CLIENT* mqttData = (MQTT_CLIENT*)handle;
Azure.IoT Build 0:ef4901974abc 625 if (mqttData == NULL || msgHandle == NULL)
Azure.IoT Build 0:ef4901974abc 626 {
Azure.IoT Build 0:ef4901974abc 627 /*Codes_SRS_MQTT_CLIENT_07_019: [If one of the parameters handle or msgHandle is NULL then mqtt_client_publish shall return a non-zero value.]*/
Azure.IoT Build 0:ef4901974abc 628 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 629 }
Azure.IoT Build 0:ef4901974abc 630 else
Azure.IoT Build 0:ef4901974abc 631 {
Azure.IoT Build 0:ef4901974abc 632 /*Codes_SRS_MQTT_CLIENT_07_021: [mqtt_client_publish shall get the message information from the MQTT_MESSAGE_HANDLE.]*/
Azure.IoT Build 0:ef4901974abc 633 const APP_PAYLOAD* payload = mqttmessage_getApplicationMsg(msgHandle);
Azure.IoT Build 0:ef4901974abc 634 if (payload == NULL)
Azure.IoT Build 0:ef4901974abc 635 {
Azure.IoT Build 0:ef4901974abc 636 /*Codes_SRS_MQTT_CLIENT_07_020: [If any failure is encountered then mqtt_client_unsubscribe shall return a non-zero value.]*/
Azure.IoT Build 0:ef4901974abc 637 LOG(mqttData->logFunc, LOG_LINE, "Error: mqttmessage_getApplicationMsg failed");
Azure.IoT Build 0:ef4901974abc 638 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 639 }
Azure.IoT Build 0:ef4901974abc 640 else
Azure.IoT Build 0:ef4901974abc 641 {
Azure.IoT Build 0:ef4901974abc 642 BUFFER_HANDLE publishPacket = mqtt_codec_publish(mqttmessage_getQosType(msgHandle), mqttmessage_getIsDuplicateMsg(msgHandle),
Azure.IoT Build 0:ef4901974abc 643 mqttmessage_getIsRetained(msgHandle), mqttmessage_getPacketId(msgHandle), mqttmessage_getTopicName(msgHandle), payload->message, payload->length);
Azure.IoT Build 0:ef4901974abc 644 if (publishPacket == NULL)
Azure.IoT Build 0:ef4901974abc 645 {
Azure.IoT Build 0:ef4901974abc 646 /*Codes_SRS_MQTT_CLIENT_07_020: [If any failure is encountered then mqtt_client_unsubscribe shall return a non-zero value.]*/
Azure.IoT Build 0:ef4901974abc 647 LOG(mqttData->logFunc, LOG_LINE, "Error: mqtt_codec_publish failed");
Azure.IoT Build 0:ef4901974abc 648 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 649 }
Azure.IoT Build 0:ef4901974abc 650 else
Azure.IoT Build 0:ef4901974abc 651 {
Azure.IoT Build 0:ef4901974abc 652 mqttData->packetState = PUBLISH_TYPE;
Azure.IoT Build 0:ef4901974abc 653
Azure.IoT Build 0:ef4901974abc 654 /*Codes_SRS_MQTT_CLIENT_07_022: [On success mqtt_client_publish shall send the MQTT SUBCRIBE packet to the endpoint.]*/
Azure.IoT Build 0:ef4901974abc 655 if (sendPacketItem(mqttData, BUFFER_u_char(publishPacket), BUFFER_length(publishPacket)) != 0)
Azure.IoT Build 0:ef4901974abc 656 {
Azure.IoT Build 0:ef4901974abc 657 /*Codes_SRS_MQTT_CLIENT_07_020: [If any failure is encountered then mqtt_client_unsubscribe shall return a non-zero value.]*/
Azure.IoT Build 0:ef4901974abc 658 LOG(mqttData->logFunc, LOG_LINE, "Error: mqtt_client_publish send failed");
Azure.IoT Build 0:ef4901974abc 659 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 660 }
Azure.IoT Build 0:ef4901974abc 661 else
Azure.IoT Build 0:ef4901974abc 662 {
Azure.IoT Build 0:ef4901974abc 663 result = 0;
Azure.IoT Build 0:ef4901974abc 664 }
Azure.IoT Build 0:ef4901974abc 665 BUFFER_delete(publishPacket);
Azure.IoT Build 0:ef4901974abc 666 }
Azure.IoT Build 0:ef4901974abc 667 }
Azure.IoT Build 0:ef4901974abc 668 }
Azure.IoT Build 0:ef4901974abc 669 return result;
Azure.IoT Build 0:ef4901974abc 670 }
Azure.IoT Build 0:ef4901974abc 671
Azure.IoT Build 0:ef4901974abc 672 int mqtt_client_subscribe(MQTT_CLIENT_HANDLE handle, uint16_t packetId, SUBSCRIBE_PAYLOAD* subscribeList, size_t count)
Azure.IoT Build 0:ef4901974abc 673 {
Azure.IoT Build 0:ef4901974abc 674 int result;
Azure.IoT Build 0:ef4901974abc 675 MQTT_CLIENT* mqttData = (MQTT_CLIENT*)handle;
Azure.IoT Build 0:ef4901974abc 676 if (mqttData == NULL || subscribeList == NULL || count == 0)
Azure.IoT Build 0:ef4901974abc 677 {
Azure.IoT Build 0:ef4901974abc 678 /*Codes_SRS_MQTT_CLIENT_07_013: [If any of the parameters handle, subscribeList is NULL or count is 0 then mqtt_client_subscribe shall return a non-zero value.]*/
Azure.IoT Build 0:ef4901974abc 679 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 680 }
Azure.IoT Build 0:ef4901974abc 681 else
Azure.IoT Build 0:ef4901974abc 682 {
Azure.IoT Build 0:ef4901974abc 683 BUFFER_HANDLE subPacket = mqtt_codec_subscribe(packetId, subscribeList, count);
Azure.IoT Build 0:ef4901974abc 684 if (subPacket == NULL)
Azure.IoT Build 0:ef4901974abc 685 {
Azure.IoT Build 0:ef4901974abc 686 /*Codes_SRS_MQTT_CLIENT_07_014: [If any failure is encountered then mqtt_client_subscribe shall return a non-zero value.]*/
Azure.IoT Build 0:ef4901974abc 687 LOG(mqttData->logFunc, LOG_LINE, "Error: mqtt_codec_subscribe failed");
Azure.IoT Build 0:ef4901974abc 688 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 689 }
Azure.IoT Build 0:ef4901974abc 690 else
Azure.IoT Build 0:ef4901974abc 691 {
Azure.IoT Build 0:ef4901974abc 692 mqttData->packetState = SUBSCRIBE_TYPE;
Azure.IoT Build 0:ef4901974abc 693
Azure.IoT Build 0:ef4901974abc 694 /*Codes_SRS_MQTT_CLIENT_07_015: [On success mqtt_client_subscribe shall send the MQTT SUBCRIBE packet to the endpoint.]*/
Azure.IoT Build 0:ef4901974abc 695 if (sendPacketItem(mqttData, BUFFER_u_char(subPacket), BUFFER_length(subPacket)) != 0)
Azure.IoT Build 0:ef4901974abc 696 {
Azure.IoT Build 0:ef4901974abc 697 /*Codes_SRS_MQTT_CLIENT_07_014: [If any failure is encountered then mqtt_client_subscribe shall return a non-zero value.]*/
Azure.IoT Build 0:ef4901974abc 698 LOG(mqttData->logFunc, LOG_LINE, "Error: mqtt_client_subscribe send failed");
Azure.IoT Build 0:ef4901974abc 699 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 700 }
Azure.IoT Build 0:ef4901974abc 701 else
Azure.IoT Build 0:ef4901974abc 702 {
Azure.IoT Build 0:ef4901974abc 703 result = 0;
Azure.IoT Build 0:ef4901974abc 704 }
Azure.IoT Build 0:ef4901974abc 705 BUFFER_delete(subPacket);
Azure.IoT Build 0:ef4901974abc 706 }
Azure.IoT Build 0:ef4901974abc 707 }
Azure.IoT Build 0:ef4901974abc 708 return result;
Azure.IoT Build 0:ef4901974abc 709 }
Azure.IoT Build 0:ef4901974abc 710
Azure.IoT Build 0:ef4901974abc 711 int mqtt_client_unsubscribe(MQTT_CLIENT_HANDLE handle, uint16_t packetId, const char** unsubscribeList, size_t count)
Azure.IoT Build 0:ef4901974abc 712 {
Azure.IoT Build 0:ef4901974abc 713 int result;
Azure.IoT Build 0:ef4901974abc 714 MQTT_CLIENT* mqttData = (MQTT_CLIENT*)handle;
Azure.IoT Build 0:ef4901974abc 715 if (mqttData == NULL || unsubscribeList == NULL || count == 0)
Azure.IoT Build 0:ef4901974abc 716 {
Azure.IoT Build 0:ef4901974abc 717 /*Codes_SRS_MQTT_CLIENT_07_016: [If any of the parameters handle, unsubscribeList is NULL or count is 0 then mqtt_client_unsubscribe shall return a non-zero value.]*/
Azure.IoT Build 0:ef4901974abc 718 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 719 }
Azure.IoT Build 0:ef4901974abc 720 else
Azure.IoT Build 0:ef4901974abc 721 {
Azure.IoT Build 0:ef4901974abc 722 BUFFER_HANDLE unsubPacket = mqtt_codec_unsubscribe(packetId, unsubscribeList, count);
Azure.IoT Build 0:ef4901974abc 723 if (unsubPacket == NULL)
Azure.IoT Build 0:ef4901974abc 724 {
Azure.IoT Build 0:ef4901974abc 725 /*Codes_SRS_MQTT_CLIENT_07_017: [If any failure is encountered then mqtt_client_unsubscribe shall return a non-zero value.]*/
Azure.IoT Build 0:ef4901974abc 726 LOG(mqttData->logFunc, LOG_LINE, "Error: mqtt_codec_unsubscribe failed");
Azure.IoT Build 0:ef4901974abc 727 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 728 }
Azure.IoT Build 0:ef4901974abc 729 else
Azure.IoT Build 0:ef4901974abc 730 {
Azure.IoT Build 0:ef4901974abc 731 mqttData->packetState = UNSUBSCRIBE_TYPE;
Azure.IoT Build 0:ef4901974abc 732
Azure.IoT Build 0:ef4901974abc 733 /*Codes_SRS_MQTT_CLIENT_07_018: [On success mqtt_client_unsubscribe shall send the MQTT SUBCRIBE packet to the endpoint.]*/
Azure.IoT Build 0:ef4901974abc 734 LOG(mqttData->logFunc, LOG_LINE, "MQTT unsubscribe");
Azure.IoT Build 0:ef4901974abc 735 if (sendPacketItem(mqttData, BUFFER_u_char(unsubPacket), BUFFER_length(unsubPacket)) != 0)
Azure.IoT Build 0:ef4901974abc 736 {
Azure.IoT Build 0:ef4901974abc 737 /*Codes_SRS_MQTT_CLIENT_07_017: [If any failure is encountered then mqtt_client_unsubscribe shall return a non-zero value.].]*/
Azure.IoT Build 0:ef4901974abc 738 LOG(mqttData->logFunc, LOG_LINE, "Error: mqtt_client_unsubscribe send failed");
Azure.IoT Build 0:ef4901974abc 739 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 740 }
Azure.IoT Build 0:ef4901974abc 741 else
Azure.IoT Build 0:ef4901974abc 742 {
Azure.IoT Build 0:ef4901974abc 743 result = 0;
Azure.IoT Build 0:ef4901974abc 744 }
Azure.IoT Build 0:ef4901974abc 745 BUFFER_delete(unsubPacket);
Azure.IoT Build 0:ef4901974abc 746 }
Azure.IoT Build 0:ef4901974abc 747 }
Azure.IoT Build 0:ef4901974abc 748 return result;
Azure.IoT Build 0:ef4901974abc 749 }
Azure.IoT Build 0:ef4901974abc 750
Azure.IoT Build 0:ef4901974abc 751 int mqtt_client_disconnect(MQTT_CLIENT_HANDLE handle)
Azure.IoT Build 0:ef4901974abc 752 {
Azure.IoT Build 0:ef4901974abc 753 int result;
Azure.IoT Build 0:ef4901974abc 754 MQTT_CLIENT* mqttData = (MQTT_CLIENT*)handle;
Azure.IoT Build 0:ef4901974abc 755 if (mqttData == NULL)
Azure.IoT Build 0:ef4901974abc 756 {
Azure.IoT Build 0:ef4901974abc 757 /*Codes_SRS_MQTT_CLIENT_07_010: [If the parameters handle is NULL then mqtt_client_disconnect shall return a non-zero value.]*/
Azure.IoT Build 0:ef4901974abc 758 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 759 }
Azure.IoT Build 0:ef4901974abc 760 else
Azure.IoT Build 0:ef4901974abc 761 {
Azure.IoT Build 0:ef4901974abc 762 mqttData->packetState = DISCONNECT_TYPE;
Azure.IoT Build 0:ef4901974abc 763 BUFFER_HANDLE disconnectPacket = mqtt_codec_disconnect();
Azure.IoT Build 0:ef4901974abc 764 if (disconnectPacket == NULL)
Azure.IoT Build 0:ef4901974abc 765 {
Azure.IoT Build 0:ef4901974abc 766 /*Codes_SRS_MQTT_CLIENT_07_011: [If any failure is encountered then mqtt_client_disconnect shall return a non-zero value.]*/
Azure.IoT Build 0:ef4901974abc 767 LOG(mqttData->logFunc, LOG_LINE, "Error: mqtt_client_disconnect failed");
Azure.IoT Build 0:ef4901974abc 768 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 769 }
Azure.IoT Build 0:ef4901974abc 770 else
Azure.IoT Build 0:ef4901974abc 771 {
Azure.IoT Build 0:ef4901974abc 772 mqttData->packetState = DISCONNECT_TYPE;
Azure.IoT Build 0:ef4901974abc 773
Azure.IoT Build 0:ef4901974abc 774 /*Codes_SRS_MQTT_CLIENT_07_012: [On success mqtt_client_disconnect shall send the MQTT DISCONNECT packet to the endpoint.]*/
Azure.IoT Build 0:ef4901974abc 775 if (sendPacketItem(mqttData, BUFFER_u_char(disconnectPacket), BUFFER_length(disconnectPacket)) != 0)
Azure.IoT Build 0:ef4901974abc 776 {
Azure.IoT Build 0:ef4901974abc 777 /*Codes_SRS_MQTT_CLIENT_07_011: [If any failure is encountered then mqtt_client_disconnect shall return a non-zero value.]*/
Azure.IoT Build 0:ef4901974abc 778 LOG(mqttData->logFunc, LOG_LINE, "Error: mqtt_client_disconnect send failed");
Azure.IoT Build 0:ef4901974abc 779 result = __LINE__;
Azure.IoT Build 0:ef4901974abc 780 }
Azure.IoT Build 0:ef4901974abc 781 else
Azure.IoT Build 0:ef4901974abc 782 {
Azure.IoT Build 0:ef4901974abc 783 result = 0;
Azure.IoT Build 0:ef4901974abc 784 }
Azure.IoT Build 0:ef4901974abc 785 BUFFER_delete(disconnectPacket);
Azure.IoT Build 0:ef4901974abc 786 }
Azure.IoT Build 0:ef4901974abc 787 }
Azure.IoT Build 0:ef4901974abc 788 return result;
Azure.IoT Build 0:ef4901974abc 789 }
Azure.IoT Build 0:ef4901974abc 790
Azure.IoT Build 0:ef4901974abc 791 void mqtt_client_dowork(MQTT_CLIENT_HANDLE handle)
Azure.IoT Build 0:ef4901974abc 792 {
Azure.IoT Build 0:ef4901974abc 793 MQTT_CLIENT* mqttData = (MQTT_CLIENT*)handle;
Azure.IoT Build 0:ef4901974abc 794 /*Codes_SRS_MQTT_CLIENT_07_023: [If the parameter handle is NULL then mqtt_client_dowork shall do nothing.]*/
Azure.IoT Build 0:ef4901974abc 795 if (mqttData != NULL)
Azure.IoT Build 0:ef4901974abc 796 {
Azure.IoT Build 0:ef4901974abc 797 /*Codes_SRS_MQTT_CLIENT_07_024: [mqtt_client_dowork shall call the xio_dowork function to complete operations.]*/
Azure.IoT Build 0:ef4901974abc 798 xio_dowork(mqttData->xioHandle);
Azure.IoT Build 0:ef4901974abc 799
Azure.IoT Build 0:ef4901974abc 800 /*Codes_SRS_MQTT_CLIENT_07_025: [mqtt_client_dowork shall retrieve the the last packet send value and ...]*/
Azure.IoT Build 0:ef4901974abc 801 if (mqttData->socketConnected && mqttData->clientConnected && mqttData->keepAliveInterval > 0)
Azure.IoT Build 0:ef4901974abc 802 {
Azure.IoT Build 0:ef4901974abc 803 uint64_t current_ms;
Azure.IoT Build 0:ef4901974abc 804 if (tickcounter_get_current_ms(mqttData->packetTickCntr, &current_ms) != 0)
Azure.IoT Build 0:ef4901974abc 805 {
Azure.IoT Build 0:ef4901974abc 806 LOG(mqttData->logFunc, LOG_LINE, "Error: tickcounter_get_current_ms failed");
Azure.IoT Build 0:ef4901974abc 807 }
Azure.IoT Build 0:ef4901974abc 808 else
Azure.IoT Build 0:ef4901974abc 809 {
AzureIoTClient 3:9b4e7158ca0d 810 /* Codes_SRS_MQTT_CLIENT_07_035: [If the timeSincePing has expired past the maxPingRespTime then mqtt_client_dowork shall call the Operation Callback function with the message MQTT_CLIENT_NO_PING_RESPONSE] */
AzureIoTClient 3:9b4e7158ca0d 811 if (mqttData->timeSincePing > 0 && ((current_ms - mqttData->timeSincePing)/1000) > mqttData->maxPingRespTime)
AzureIoTClient 3:9b4e7158ca0d 812 {
AzureIoTClient 3:9b4e7158ca0d 813 // We haven't gotten a ping response in the alloted time
AzureIoTClient 3:9b4e7158ca0d 814 if (mqttData->fnOperationCallback != NULL)
AzureIoTClient 3:9b4e7158ca0d 815 {
AzureIoTClient 3:9b4e7158ca0d 816 mqttData->fnOperationCallback(mqttData, MQTT_CLIENT_NO_PING_RESPONSE, NULL, mqttData->ctx);
AzureIoTClient 3:9b4e7158ca0d 817 }
AzureIoTClient 3:9b4e7158ca0d 818 mqttData->socketConnected = false;
AzureIoTClient 3:9b4e7158ca0d 819 mqttData->clientConnected = false;
AzureIoTClient 3:9b4e7158ca0d 820 mqttData->timeSincePing = 0;
AzureIoTClient 3:9b4e7158ca0d 821 mqttData->packetSendTimeMs = 0;
AzureIoTClient 3:9b4e7158ca0d 822 mqttData->packetState = UNKNOWN_TYPE;
AzureIoTClient 3:9b4e7158ca0d 823 }
AzureIoTClient 3:9b4e7158ca0d 824 else if ((((current_ms - mqttData->packetSendTimeMs) / 1000) + KEEP_ALIVE_BUFFER_SEC) > mqttData->keepAliveInterval)
Azure.IoT Build 0:ef4901974abc 825 {
Azure.IoT Build 0:ef4901974abc 826 /*Codes_SRS_MQTT_CLIENT_07_026: [if keepAliveInternal is > 0 and the send time is greater than the MQTT KeepAliveInterval then it shall construct an MQTT PINGREQ packet.]*/
Azure.IoT Build 0:ef4901974abc 827 BUFFER_HANDLE pingPacket = mqtt_codec_ping();
Azure.IoT Build 0:ef4901974abc 828 if (pingPacket != NULL)
Azure.IoT Build 0:ef4901974abc 829 {
Azure.IoT Build 0:ef4901974abc 830 (void)sendPacketItem(mqttData, BUFFER_u_char(pingPacket), BUFFER_length(pingPacket));
Azure.IoT Build 0:ef4901974abc 831 BUFFER_delete(pingPacket);
AzureIoTClient 3:9b4e7158ca0d 832 (void)tickcounter_get_current_ms(mqttData->packetTickCntr, &mqttData->timeSincePing);
Azure.IoT Build 0:ef4901974abc 833 }
Azure.IoT Build 0:ef4901974abc 834 }
Azure.IoT Build 0:ef4901974abc 835 }
Azure.IoT Build 0:ef4901974abc 836 }
Azure.IoT Build 0:ef4901974abc 837 }
Azure.IoT Build 0:ef4901974abc 838 }
Azure.IoT Build 0:ef4901974abc 839
Azure.IoT Build 0:ef4901974abc 840 void mqtt_client_set_trace(MQTT_CLIENT_HANDLE handle, bool traceOn, bool rawBytesOn)
Azure.IoT Build 0:ef4901974abc 841 {
Azure.IoT Build 0:ef4901974abc 842 MQTT_CLIENT* mqttData = (MQTT_CLIENT*)handle;
Azure.IoT Build 0:ef4901974abc 843 if (mqttData != NULL)
Azure.IoT Build 0:ef4901974abc 844 {
Azure.IoT Build 0:ef4901974abc 845 mqttData->logTrace = traceOn;
Azure.IoT Build 0:ef4901974abc 846 mqttData->rawBytesTrace = rawBytesOn;
Azure.IoT Build 0:ef4901974abc 847 }
Azure.IoT Build 0:ef4901974abc 848 }