Pierre-Marie Ancèle / Mbed OS AWS-test

test

aws-iot/include/aws_iot_shadow_interface.h@0:cd5404401c2f, 2017-04-12 (annotated)

Committer:
peyo
Date:
Wed Apr 12 14:07:09 2017 +0200
Revision:
0:cd5404401c2f
first commit

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peyo 0:cd5404401c2f 1 /*
peyo 0:cd5404401c2f 2 * Copyright 2010-2015 Amazon.com, Inc. or its affiliates. All Rights Reserved.
peyo 0:cd5404401c2f 3 *
peyo 0:cd5404401c2f 4 * Licensed under the Apache License, Version 2.0 (the "License").
peyo 0:cd5404401c2f 5 * You may not use this file except in compliance with the License.
peyo 0:cd5404401c2f 6 * A copy of the License is located at
peyo 0:cd5404401c2f 7 *
peyo 0:cd5404401c2f 8 * http://aws.amazon.com/apache2.0
peyo 0:cd5404401c2f 9 *
peyo 0:cd5404401c2f 10 * or in the "license" file accompanying this file. This file is distributed
peyo 0:cd5404401c2f 11 * on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
peyo 0:cd5404401c2f 12 * express or implied. See the License for the specific language governing
peyo 0:cd5404401c2f 13 * permissions and limitations under the License.
peyo 0:cd5404401c2f 14 */
peyo 0:cd5404401c2f 15 #ifndef AWS_IOT_SDK_SRC_IOT_SHADOW_H_
peyo 0:cd5404401c2f 16 #define AWS_IOT_SDK_SRC_IOT_SHADOW_H_
peyo 0:cd5404401c2f 17
peyo 0:cd5404401c2f 18 #ifdef __cplusplus
peyo 0:cd5404401c2f 19 extern "C" {
peyo 0:cd5404401c2f 20 #endif
peyo 0:cd5404401c2f 21
peyo 0:cd5404401c2f 22
peyo 0:cd5404401c2f 23 /**
peyo 0:cd5404401c2f 24 * @file aws_iot_shadow_interface.h
peyo 0:cd5404401c2f 25 * @brief Interface for thing shadow
peyo 0:cd5404401c2f 26 *
peyo 0:cd5404401c2f 27 * These are the functions and structs to manage/interact the Thing Shadow(in the cloud).
peyo 0:cd5404401c2f 28 * This SDK will let you interact with your own thing shadow or any other shadow using its Thing Name.
peyo 0:cd5404401c2f 29 * There are totally 3 actions a device can perform on the shadow - Get, Update and Delete.
peyo 0:cd5404401c2f 30 *
peyo 0:cd5404401c2f 31 * Currently the device should use MQTT/S underneath. In the future this will also support other protocols. As it supports MQTT, the shadow needs to connect and disconnect.
peyo 0:cd5404401c2f 32 * It will also work on the pub/sub model. On performing any action, the acknowledgment will be received in either accepted or rejected. For Example:
peyo 0:cd5404401c2f 33 * If we want to perform a GET on the thing shadow the following messages will be sent and received:
peyo 0:cd5404401c2f 34 * 1. A MQTT Publish on the topic - $aws/things/{thingName}/shadow/get
peyo 0:cd5404401c2f 35 * 2. Subscribe to MQTT topics - $aws/things/{thingName}/shadow/get/accepted and $aws/things/{thingName}/shadow/get/rejected.
peyo 0:cd5404401c2f 36 * If the request was successful we will receive the things json document in the accepted topic.
peyo 0:cd5404401c2f 37 *
peyo 0:cd5404401c2f 38 *
peyo 0:cd5404401c2f 39 */
peyo 0:cd5404401c2f 40 #include "aws_iot_mqtt_client_interface.h"
peyo 0:cd5404401c2f 41 #include "aws_iot_shadow_json_data.h"
peyo 0:cd5404401c2f 42
peyo 0:cd5404401c2f 43 /*!
peyo 0:cd5404401c2f 44 * @brief Shadow Initialization parameters
peyo 0:cd5404401c2f 45 *
peyo 0:cd5404401c2f 46 * As the Shadow SDK uses MQTT underneath, it could be connected and disconnected on events to save some battery.
peyo 0:cd5404401c2f 47 * @note Always use the \c ShadowIniTParametersDefault to initialize this struct
peyo 0:cd5404401c2f 48 *
peyo 0:cd5404401c2f 49 *
peyo 0:cd5404401c2f 50 *
peyo 0:cd5404401c2f 51 */
peyo 0:cd5404401c2f 52 typedef struct {
peyo 0:cd5404401c2f 53 char *pHost; ///< This will be unique to a customer and can be retrieved from the console
peyo 0:cd5404401c2f 54 uint16_t port; ///< By default the port is 8883
peyo 0:cd5404401c2f 55 char *pRootCA; ///< Location with the Filename of the Root CA
peyo 0:cd5404401c2f 56 char *pClientCRT; ///< Location of Device certs signed by AWS IoT service
peyo 0:cd5404401c2f 57 char *pClientKey; ///< Location of Device private key
peyo 0:cd5404401c2f 58 bool enableAutoReconnect; ///< Set to true to enable auto reconnect
peyo 0:cd5404401c2f 59 iot_disconnect_handler disconnectHandler; ///< Callback to be invoked upon connection loss.
peyo 0:cd5404401c2f 60 } ShadowInitParameters_t;
peyo 0:cd5404401c2f 61
peyo 0:cd5404401c2f 62 /*!
peyo 0:cd5404401c2f 63 * @brief Shadow Connect parameters
peyo 0:cd5404401c2f 64 *
peyo 0:cd5404401c2f 65 * As the Shadow SDK uses MQTT underneath, it could be connected and disconnected on events to save some battery.
peyo 0:cd5404401c2f 66 * @note Always use the \c ShadowConnectParametersDefault to initialize this struct
peyo 0:cd5404401c2f 67 *
peyo 0:cd5404401c2f 68 *d
peyo 0:cd5404401c2f 69 *
peyo 0:cd5404401c2f 70 */
peyo 0:cd5404401c2f 71 typedef struct {
peyo 0:cd5404401c2f 72 char *pMyThingName; ///< Every device has a Thing Shadow and this is the placeholder for name
peyo 0:cd5404401c2f 73 char *pMqttClientId; ///< Currently the Shadow uses MQTT to connect and it is important to ensure we have unique client id
peyo 0:cd5404401c2f 74 uint16_t mqttClientIdLen; ///< Currently the Shadow uses MQTT to connect and it is important to ensure we have unique client id
peyo 0:cd5404401c2f 75 pApplicationHandler_t deleteActionHandler; ///< Callback to be invoked when Thing shadow for this device is deleted
peyo 0:cd5404401c2f 76 } ShadowConnectParameters_t;
peyo 0:cd5404401c2f 77
peyo 0:cd5404401c2f 78 /*!
peyo 0:cd5404401c2f 79 * @brief This is set to defaults from the configuration file
peyo 0:cd5404401c2f 80 * The certs are set to NULL because they need the path to the file. shadow_sample.c file demonstrates on how to get the relative path
peyo 0:cd5404401c2f 81 *
peyo 0:cd5404401c2f 82 * \relates ShadowInitParameters_t
peyo 0:cd5404401c2f 83 */
peyo 0:cd5404401c2f 84 extern const ShadowInitParameters_t ShadowInitParametersDefault;
peyo 0:cd5404401c2f 85
peyo 0:cd5404401c2f 86 /*!
peyo 0:cd5404401c2f 87 * @brief This is set to defaults from the configuration file
peyo 0:cd5404401c2f 88 * The length of the client id is initialized as 0. This is due to C language limitations of using constant literals
peyo 0:cd5404401c2f 89 * only for creating const variables. The client id will be assigned using the value from aws_iot_config.h but the
peyo 0:cd5404401c2f 90 * length needs to be assigned in code. shadow_sample.c file demonstrates this.
peyo 0:cd5404401c2f 91 *
peyo 0:cd5404401c2f 92 * \relates ShadowConnectParameters_t
peyo 0:cd5404401c2f 93 */
peyo 0:cd5404401c2f 94 extern const ShadowConnectParameters_t ShadowConnectParametersDefault;
peyo 0:cd5404401c2f 95
peyo 0:cd5404401c2f 96
peyo 0:cd5404401c2f 97 /**
peyo 0:cd5404401c2f 98 * @brief Initialize the Thing Shadow before use
peyo 0:cd5404401c2f 99 *
peyo 0:cd5404401c2f 100 * This function takes care of initializing the internal book-keeping data structures and initializing the IoT client.
peyo 0:cd5404401c2f 101 *
peyo 0:cd5404401c2f 102 * @param pClient A new MQTT Client to be used as the protocol layer. Will be initialized with pParams.
peyo 0:cd5404401c2f 103 * @return An IoT Error Type defining successful/failed Initialization
peyo 0:cd5404401c2f 104 */
peyo 0:cd5404401c2f 105 IoT_Error_t aws_iot_shadow_init(AWS_IoT_Client *pClient, ShadowInitParameters_t *pParams);
peyo 0:cd5404401c2f 106
peyo 0:cd5404401c2f 107 /**
peyo 0:cd5404401c2f 108 * @brief Connect to the AWS IoT Thing Shadow service over MQTT
peyo 0:cd5404401c2f 109 *
peyo 0:cd5404401c2f 110 * This function does the TLSv1.2 handshake and establishes the MQTT connection
peyo 0:cd5404401c2f 111 *
peyo 0:cd5404401c2f 112 * @param pClient MQTT Client used as the protocol layer
peyo 0:cd5404401c2f 113 * @param pParams Shadow Conenction parameters like TLS cert location
peyo 0:cd5404401c2f 114 * @return An IoT Error Type defining successful/failed Connection
peyo 0:cd5404401c2f 115 */
peyo 0:cd5404401c2f 116 IoT_Error_t aws_iot_shadow_connect(AWS_IoT_Client *pClient, ShadowConnectParameters_t *pParams);
peyo 0:cd5404401c2f 117
peyo 0:cd5404401c2f 118 /**
peyo 0:cd5404401c2f 119 * @brief Yield function to let the background tasks of MQTT and Shadow
peyo 0:cd5404401c2f 120 *
peyo 0:cd5404401c2f 121 * This function could be use in a separate thread waiting for the incoming messages, ensuring the connection is kept alive with the AWS Service.
peyo 0:cd5404401c2f 122 * It also ensures the expired requests of Shadow actions are cleared and Timeout callback is executed.
peyo 0:cd5404401c2f 123 * @note All callbacks ever used in the SDK will be executed in the context of this function.
peyo 0:cd5404401c2f 124 *
peyo 0:cd5404401c2f 125 * @param pClient MQTT Client used as the protocol layer
peyo 0:cd5404401c2f 126 * @param timeout in milliseconds, This is the maximum time the yield function will wait for a message and/or read the messages from the TLS buffer
peyo 0:cd5404401c2f 127 * @return An IoT Error Type defining successful/failed Yield
peyo 0:cd5404401c2f 128 */
peyo 0:cd5404401c2f 129 IoT_Error_t aws_iot_shadow_yield(AWS_IoT_Client *pClient, uint32_t timeout);
peyo 0:cd5404401c2f 130
peyo 0:cd5404401c2f 131 /**
peyo 0:cd5404401c2f 132 * @brief Disconnect from the AWS IoT Thing Shadow service over MQTT
peyo 0:cd5404401c2f 133 *
peyo 0:cd5404401c2f 134 * This will close the underlying TCP connection, MQTT connection will also be closed
peyo 0:cd5404401c2f 135 *
peyo 0:cd5404401c2f 136 * @param pClient MQTT Client used as the protocol layer
peyo 0:cd5404401c2f 137 * @return An IoT Error Type defining successful/failed disconnect status
peyo 0:cd5404401c2f 138 */
peyo 0:cd5404401c2f 139 IoT_Error_t aws_iot_shadow_disconnect(AWS_IoT_Client *pClient);
peyo 0:cd5404401c2f 140
peyo 0:cd5404401c2f 141 /**
peyo 0:cd5404401c2f 142 * @brief Thing Shadow Acknowledgment enum
peyo 0:cd5404401c2f 143 *
peyo 0:cd5404401c2f 144 * This enum type is use in the callback for the action response
peyo 0:cd5404401c2f 145 *
peyo 0:cd5404401c2f 146 */
peyo 0:cd5404401c2f 147 typedef enum {
peyo 0:cd5404401c2f 148 SHADOW_ACK_TIMEOUT, SHADOW_ACK_REJECTED, SHADOW_ACK_ACCEPTED
peyo 0:cd5404401c2f 149 } Shadow_Ack_Status_t;
peyo 0:cd5404401c2f 150
peyo 0:cd5404401c2f 151 /**
peyo 0:cd5404401c2f 152 * @brief Thing Shadow Action type enum
peyo 0:cd5404401c2f 153 *
peyo 0:cd5404401c2f 154 * This enum type is use in the callback for the action response
peyo 0:cd5404401c2f 155 *
peyo 0:cd5404401c2f 156 */
peyo 0:cd5404401c2f 157 typedef enum {
peyo 0:cd5404401c2f 158 SHADOW_GET, SHADOW_UPDATE, SHADOW_DELETE
peyo 0:cd5404401c2f 159 } ShadowActions_t;
peyo 0:cd5404401c2f 160
peyo 0:cd5404401c2f 161
peyo 0:cd5404401c2f 162 /**
peyo 0:cd5404401c2f 163 * @brief Function Pointer typedef used as the callback for every action
peyo 0:cd5404401c2f 164 *
peyo 0:cd5404401c2f 165 * This function will be called from the context of \c aws_iot_shadow_yield() context
peyo 0:cd5404401c2f 166 *
peyo 0:cd5404401c2f 167 * @param pThingName Thing Name of the response received
peyo 0:cd5404401c2f 168 * @param action The response of the action
peyo 0:cd5404401c2f 169 * @param status Informs if the action was Accepted/Rejected or Timed out
peyo 0:cd5404401c2f 170 * @param pReceivedJsonDocument Received JSON document
peyo 0:cd5404401c2f 171 * @param pContextData the void* data passed in during the action call(update, get or delete)
peyo 0:cd5404401c2f 172 *
peyo 0:cd5404401c2f 173 */
peyo 0:cd5404401c2f 174 typedef void (*fpActionCallback_t)(const char *pThingName, ShadowActions_t action, Shadow_Ack_Status_t status,
peyo 0:cd5404401c2f 175 const char *pReceivedJsonDocument, void *pContextData);
peyo 0:cd5404401c2f 176
peyo 0:cd5404401c2f 177 /**
peyo 0:cd5404401c2f 178 * @brief This function is the one used to perform an Update action to a Thing Name's Shadow.
peyo 0:cd5404401c2f 179 *
peyo 0:cd5404401c2f 180 * update is one of the most frequently used functionality by a device. In most cases the device may be just reporting few params to update the thing shadow in the cloud
peyo 0:cd5404401c2f 181 * Update Action if no callback or if the JSON document does not have a client token then will just publish the update and not track it.
peyo 0:cd5404401c2f 182 *
peyo 0:cd5404401c2f 183 * @note The update has to subscribe to two topics update/accepted and update/rejected. This function waits 2 seconds to ensure the subscriptions are registered before publishing the update message.
peyo 0:cd5404401c2f 184 * The following steps are performed on using this function:
peyo 0:cd5404401c2f 185 * 1. Subscribe to Shadow topics - $aws/things/{thingName}/shadow/update/accepted and $aws/things/{thingName}/shadow/update/rejected
peyo 0:cd5404401c2f 186 * 2. wait for 2 seconds for the subscription to take effect
peyo 0:cd5404401c2f 187 * 3. Publish on the update topic - $aws/things/{thingName}/shadow/update
peyo 0:cd5404401c2f 188 * 4. In the \c aws_iot_shadow_yield() function the response will be handled. In case of timeout or if the response is received, the subscription to shadow response topics are un-subscribed from.
peyo 0:cd5404401c2f 189 * On the contrary if the persistent subscription is set to true then the un-subscribe will not be done. The topics will always be listened to.
peyo 0:cd5404401c2f 190 *
peyo 0:cd5404401c2f 191 * @param pClient MQTT Client used as the protocol layer
peyo 0:cd5404401c2f 192 * @param pThingName Thing Name of the shadow that needs to be Updated
peyo 0:cd5404401c2f 193 * @param pJsonString The update action expects a JSON document to send. The JSON String should be a null terminated string. This JSON document should adhere to the AWS IoT Thing Shadow specification. To help in the process of creating this document- SDK provides apis in \c aws_iot_shadow_json_data.h
peyo 0:cd5404401c2f 194 * @param callback This is the callback that will be used to inform the caller of the response from the AWS IoT Shadow service.Callback could be set to NULL if response is not important
peyo 0:cd5404401c2f 195 * @param pContextData This is an extra parameter that could be passed along with the callback. It should be set to NULL if not used
peyo 0:cd5404401c2f 196 * @param timeout_seconds It is the time the SDK will wait for the response on either accepted/rejected before declaring timeout on the action
peyo 0:cd5404401c2f 197 * @param isPersistentSubscribe As mentioned above, every time if a device updates the same shadow then this should be set to true to avoid repeated subscription and unsubscription. If the Thing Name is one off update then this should be set to false
peyo 0:cd5404401c2f 198 * @return An IoT Error Type defining successful/failed update action
peyo 0:cd5404401c2f 199 */
peyo 0:cd5404401c2f 200 IoT_Error_t aws_iot_shadow_update(AWS_IoT_Client *pClient, const char *pThingName, char *pJsonString,
peyo 0:cd5404401c2f 201 fpActionCallback_t callback, void *pContextData, uint8_t timeout_seconds,
peyo 0:cd5404401c2f 202 bool isPersistentSubscribe);
peyo 0:cd5404401c2f 203
peyo 0:cd5404401c2f 204 /**
peyo 0:cd5404401c2f 205 * @brief This function is the one used to perform an Get action to a Thing Name's Shadow.
peyo 0:cd5404401c2f 206 *
peyo 0:cd5404401c2f 207 * One use of this function is usually to get the config of a device at boot up.
peyo 0:cd5404401c2f 208 * It is similar to the Update function internally except it does not take a JSON document as the input. The entire JSON document will be sent over the accepted topic
peyo 0:cd5404401c2f 209 *
peyo 0:cd5404401c2f 210 * @param pClient MQTT Client used as the protocol layer
peyo 0:cd5404401c2f 211 * @param pThingName Thing Name of the JSON document that is needed
peyo 0:cd5404401c2f 212 * @param callback This is the callback that will be used to inform the caller of the response from the AWS IoT Shadow service.Callback could be set to NULL if response is not important
peyo 0:cd5404401c2f 213 * @param pContextData This is an extra parameter that could be passed along with the callback. It should be set to NULL if not used
peyo 0:cd5404401c2f 214 * @param timeout_seconds It is the time the SDK will wait for the response on either accepted/rejected before declaring timeout on the action
peyo 0:cd5404401c2f 215 * @param isPersistentSubscribe As mentioned above, every time if a device gets the same Sahdow (JSON document) then this should be set to true to avoid repeated subscription and un-subscription. If the Thing Name is one off get then this should be set to false
peyo 0:cd5404401c2f 216 * @return An IoT Error Type defining successful/failed get action
peyo 0:cd5404401c2f 217 */
peyo 0:cd5404401c2f 218 IoT_Error_t aws_iot_shadow_get(AWS_IoT_Client *pClient, const char *pThingName, fpActionCallback_t callback,
peyo 0:cd5404401c2f 219 void *pContextData, uint8_t timeout_seconds, bool isPersistentSubscribe);
peyo 0:cd5404401c2f 220
peyo 0:cd5404401c2f 221 /**
peyo 0:cd5404401c2f 222 * @brief This function is the one used to perform an Delete action to a Thing Name's Shadow.
peyo 0:cd5404401c2f 223 *
peyo 0:cd5404401c2f 224 * This is not a very common use case for device. It is generally the responsibility of the accompanying app to do the delete.
peyo 0:cd5404401c2f 225 * It is similar to the Update function internally except it does not take a JSON document as the input. The Thing Shadow referred by the ThingName will be deleted.
peyo 0:cd5404401c2f 226 *
peyo 0:cd5404401c2f 227 * @param pClient MQTT Client used as the protocol layer
peyo 0:cd5404401c2f 228 * @param pThingName Thing Name of the Shadow that should be deleted
peyo 0:cd5404401c2f 229 * @param callback This is the callback that will be used to inform the caller of the response from the AWS IoT Shadow service.Callback could be set to NULL if response is not important
peyo 0:cd5404401c2f 230 * @param pContextData This is an extra parameter that could be passed along with the callback. It should be set to NULL if not used
peyo 0:cd5404401c2f 231 * @param timeout_seconds It is the time the SDK will wait for the response on either accepted/rejected before declaring timeout on the action
peyo 0:cd5404401c2f 232 * @param isPersistentSubscribe As mentioned above, every time if a device deletes the same Shadow (JSON document) then this should be set to true to avoid repeated subscription and un-subscription. If the Thing Name is one off delete then this should be set to false
peyo 0:cd5404401c2f 233 * @return An IoT Error Type defining successful/failed delete action
peyo 0:cd5404401c2f 234 */
peyo 0:cd5404401c2f 235 IoT_Error_t aws_iot_shadow_delete(AWS_IoT_Client *pClient, const char *pThingName, fpActionCallback_t callback,
peyo 0:cd5404401c2f 236 void *pContextData, uint8_t timeout_seconds, bool isPersistentSubscriptions);
peyo 0:cd5404401c2f 237
peyo 0:cd5404401c2f 238 /**
peyo 0:cd5404401c2f 239 * @brief This function is used to listen on the delta topic of #AWS_IOT_MY_THING_NAME mentioned in the aws_iot_config.h file.
peyo 0:cd5404401c2f 240 *
peyo 0:cd5404401c2f 241 * Any time a delta is published the Json document will be delivered to the pStruct->cb. If you don't want the parsing done by the SDK then use the jsonStruct_t key set to "state". A good example of this is displayed in the sample_apps/shadow_console_echo.c
peyo 0:cd5404401c2f 242 *
peyo 0:cd5404401c2f 243 * @param pClient MQTT Client used as the protocol layer
peyo 0:cd5404401c2f 244 * @param pStruct The struct used to parse JSON value
peyo 0:cd5404401c2f 245 * @return An IoT Error Type defining successful/failed delta registering
peyo 0:cd5404401c2f 246 */
peyo 0:cd5404401c2f 247 IoT_Error_t aws_iot_shadow_register_delta(AWS_IoT_Client *pClient, jsonStruct_t *pStruct);
peyo 0:cd5404401c2f 248
peyo 0:cd5404401c2f 249 /**
peyo 0:cd5404401c2f 250 * @brief Reset the last received version number to zero.
peyo 0:cd5404401c2f 251 * This will be useful if the Thing Shadow is deleted and would like to to reset the local version
peyo 0:cd5404401c2f 252 * @return no return values
peyo 0:cd5404401c2f 253 *
peyo 0:cd5404401c2f 254 */
peyo 0:cd5404401c2f 255 void aws_iot_shadow_reset_last_received_version(void);
peyo 0:cd5404401c2f 256
peyo 0:cd5404401c2f 257 /**
peyo 0:cd5404401c2f 258 * @brief Version of a document is received with every accepted/rejected and the SDK keeps track of the last received version of the JSON document of #AWS_IOT_MY_THING_NAME shadow
peyo 0:cd5404401c2f 259 *
peyo 0:cd5404401c2f 260 * One exception to this version tracking is that, the SDK will ignore the version from update/accepted topic. Rest of the responses will be scanned to update the version number.
peyo 0:cd5404401c2f 261 * Accepting version change for update/accepted may cause version conflicts for delta message if the update message is received before the delta.
peyo 0:cd5404401c2f 262 *
peyo 0:cd5404401c2f 263 * @return version number of the last received response
peyo 0:cd5404401c2f 264 *
peyo 0:cd5404401c2f 265 */
peyo 0:cd5404401c2f 266 uint32_t aws_iot_shadow_get_last_received_version(void);
peyo 0:cd5404401c2f 267
peyo 0:cd5404401c2f 268 /**
peyo 0:cd5404401c2f 269 * @brief Enable the ignoring of delta messages with old version number
peyo 0:cd5404401c2f 270 *
peyo 0:cd5404401c2f 271 * As we use MQTT underneath, there could be more than 1 of the same message if we use QoS 0. To avoid getting called for the same message, this functionality should be enabled. All the old message will be ignored
peyo 0:cd5404401c2f 272 */
peyo 0:cd5404401c2f 273 void aws_iot_shadow_enable_discard_old_delta_msgs(void);
peyo 0:cd5404401c2f 274
peyo 0:cd5404401c2f 275 /**
peyo 0:cd5404401c2f 276 * @brief Disable the ignoring of delta messages with old version number
peyo 0:cd5404401c2f 277 */
peyo 0:cd5404401c2f 278 void aws_iot_shadow_disable_discard_old_delta_msgs(void);
peyo 0:cd5404401c2f 279
peyo 0:cd5404401c2f 280 /**
peyo 0:cd5404401c2f 281 * @brief This function is used to enable or disable autoreconnect
peyo 0:cd5404401c2f 282 *
peyo 0:cd5404401c2f 283 * Any time a disconnect happens the underlying MQTT client attempts to reconnect if this is set to true
peyo 0:cd5404401c2f 284 *
peyo 0:cd5404401c2f 285 * @param pClient MQTT Client used as the protocol layer
peyo 0:cd5404401c2f 286 * @param newStatus The new status to set the autoreconnect option to
peyo 0:cd5404401c2f 287 *
peyo 0:cd5404401c2f 288 * @return An IoT Error Type defining successful/failed operation
peyo 0:cd5404401c2f 289 */
peyo 0:cd5404401c2f 290 IoT_Error_t aws_iot_shadow_set_autoreconnect_status(AWS_IoT_Client *pClient, bool newStatus);
peyo 0:cd5404401c2f 291
peyo 0:cd5404401c2f 292 #ifdef __cplusplus
peyo 0:cd5404401c2f 293 }
peyo 0:cd5404401c2f 294 #endif
peyo 0:cd5404401c2f 295
peyo 0:cd5404401c2f 296 #endif //AWS_IOT_SDK_SRC_IOT_SHADOW_H_