core_mqtt_config_defaults.h

/*
 * coreMQTT v1.2.0
 * Copyright (C) 2022 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of
 * this software and associated documentation files (the "Software"), to deal in
 * the Software without restriction, including without limitation the rights to
 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
 * the Software, and to permit persons to whom the Software is furnished to do so,
 * subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
 * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
 * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

/**
 * @file core_mqtt_config_defaults.h
 * @brief This represents the default values for the configuration macros
 * for the MQTT library.
 *
 * @note This file SHOULD NOT be modified. If custom values are needed for
 * any configuration macro, a core_mqtt_config.h file should be provided to
 * the MQTT library to override the default values defined in this file.
 * To use the custom config file, the MQTT_DO_NOT_USE_CUSTOM_CONFIG preprocessor
 * macro SHOULD NOT be set.
 */

#ifndef CORE_MQTT_CONFIG_DEFAULTS_H_
#define CORE_MQTT_CONFIG_DEFAULTS_H_

/* *INDENT-OFF* */
#ifdef __cplusplus
    extern "C" {
#endif
/* *INDENT-ON* */

/* The macro definition for MQTT_DO_NOT_USE_CUSTOM_CONFIG is for Doxygen
 * documentation only. */

/**
 * @brief Define this macro to build the MQTT library without the custom config
 * file core_mqtt_config.h.
 *
 * Without the custom config, the MQTT library builds with
 * default values of config macros defined in core_mqtt_config_defaults.h file.
 *
 * If a custom config is provided, then MQTT_DO_NOT_USE_CUSTOM_CONFIG should not
 * be defined.
 */
#ifdef DOXYGEN
    #define MQTT_DO_NOT_USE_CUSTOM_CONFIG
#endif

/**
 * @brief Determines the maximum number of MQTT PUBLISH messages, pending
 * acknowledgment at a time, that are supported for incoming and outgoing
 * direction of messages, separately.
 *
 * QoS 1 and 2 MQTT PUBLISHes require acknowledgment from the server before
 * they can be completed. While they are awaiting the acknowledgment, the
 * client must maintain information about their state. The value of this
 * macro sets the limit on how many simultaneous PUBLISH states an MQTT
 * context maintains, separately, for both incoming and outgoing direction of
 * PUBLISHes.
 *
 * @note The MQTT context maintains separate state records for outgoing
 * and incoming PUBLISHes, and thus, 2 * MQTT_STATE_ARRAY_MAX_COUNT amount
 * of memory is statically allocated for the state records.
 *
 * <b>Possible values:</b> Any positive 32 bit integer. <br>
 * <b>Default value:</b> `10`
 */
#ifndef MQTT_STATE_ARRAY_MAX_COUNT
/* Default value for the maximum acknowledgment pending PUBLISH messages. */
    #define MQTT_STATE_ARRAY_MAX_COUNT    ( 10U )
#endif

/**
 * @brief The number of retries for receiving CONNACK.
 *
 * The MQTT_MAX_CONNACK_RECEIVE_RETRY_COUNT will be used only when the
 * timeoutMs parameter of #MQTT_Connect is passed as 0 . The transport
 * receive for CONNACK will be retried MQTT_MAX_CONNACK_RECEIVE_RETRY_COUNT
 * times before timing out. A value of 0 for this config will cause the
 * transport receive for CONNACK  to be invoked only once.
 *
 * <b>Possible values:</b> Any positive 16 bit integer. <br>
 * <b>Default value:</b> `5`
 */
#ifndef MQTT_MAX_CONNACK_RECEIVE_RETRY_COUNT
/* Default value for the CONNACK receive retries. */
    #define MQTT_MAX_CONNACK_RECEIVE_RETRY_COUNT    ( 5U )
#endif

/**
 * @brief Maximum number of milliseconds to wait for a ping response to a ping
 * request as part of the keep-alive mechanism.
 *
 * If a ping response is not received before this timeout, then
 * #MQTT_ProcessLoop will return #MQTTKeepAliveTimeout.
 *
 * @note If this value is more than half of the keep alive interval, and the
 * server does not receive the previous ping request, then it is likely that the
 * server will disconnect the client before #MQTTKeepAliveTimeout can be returned.
 *
 * @note If a dummy implementation of the #MQTTGetCurrentTimeFunc_t timer function,
 * is supplied to the library, then the keep-alive mechanism is not supported by the
 * #MQTT_ProcessLoop API function. In that case, the value of #MQTT_PINGRESP_TIMEOUT_MS
 * is irrelevant to the behavior of the library.
 *
 * <b>Possible values:</b> Any positive integer up to SIZE_MAX. <br>
 * <b>Default value:</b> `5000`
 */
#ifndef MQTT_PINGRESP_TIMEOUT_MS
/* Wait 5 seconds by default for a ping response. */
    #define MQTT_PINGRESP_TIMEOUT_MS    ( 5000U )
#endif

/**
 * @brief Maximum number of milliseconds of TX inactivity to wait
 * before initiating a PINGREQ
 *
 * @note If this value is less than the keep alive interval than
 * it will be used instead.
 *
 * <b>Possible values:</b> Any positive integer up to SIZE_MAX. <br>
 * <b>Default value:</b> '30000'
 */
#ifndef PACKET_TX_TIMEOUT_MS
    #define PACKET_TX_TIMEOUT_MS    ( 30000U )
#endif

/**
 * @brief Maximum number of milliseconds of RX inactivity to wait
 * before initiating a PINGREQ
 *
 * <b>Possible values:</b> Any positive integer up to SIZE_MAX. <br>
 * <b>Default value:</b> '30000'
 *
 */
#ifndef PACKET_RX_TIMEOUT_MS
    #define PACKET_RX_TIMEOUT_MS    ( 30000U )
#endif

/**
 * @brief The maximum duration between non-empty network reads while
 * receiving an MQTT packet via the #MQTT_ProcessLoop or #MQTT_ReceiveLoop
 * API functions.
 *
 * When an incoming MQTT packet is detected, the transport receive function
 * may be called multiple times until all of the expected number of bytes of the
 * packet are received. This timeout represents the maximum polling duration that
 * is allowed without any data reception from the network for the incoming packet.
 *
 * If the timeout expires, the #MQTT_ProcessLoop and #MQTT_ReceiveLoop functions
 * return #MQTTRecvFailed.
 *
 * @note If a dummy implementation of the #MQTTGetCurrentTimeFunc_t timer function,
 * is supplied to the library, then #MQTT_RECV_POLLING_TIMEOUT_MS MUST be set to 0.
 *
 * <b>Possible values:</b> Any positive 32 bit integer. Recommended to use a
 * small timeout value. <br>
 * <b>Default value:</b> `10`
 *
 */
#ifndef MQTT_RECV_POLLING_TIMEOUT_MS
    #define MQTT_RECV_POLLING_TIMEOUT_MS    ( 10U )
#endif

/**
 * @brief The maximum duration between non-empty network transmissions while
 * sending an MQTT packet via the #MQTT_ProcessLoop or #MQTT_ReceiveLoop
 * API functions.
 *
 * When sending an MQTT packet, the transport send function may be called multiple
 * times until all of the required number of bytes are sent.
 * This timeout represents the maximum duration that is allowed for no data
 * transmission over the network through the transport send function.
 *
 * If the timeout expires, the #MQTT_ProcessLoop and #MQTT_ReceiveLoop functions
 * return #MQTTSendFailed.
 *
 * @note If a dummy implementation of the #MQTTGetCurrentTimeFunc_t timer function,
 * is supplied to the library, then #MQTT_SEND_RETRY_TIMEOUT_MS MUST be set to 0.
 *
 * <b>Possible values:</b> Any positive 32 bit integer. Recommended to use a small
 * timeout value. <br>
 * <b>Default value:</b> `10`
 *
 */
#ifndef MQTT_SEND_RETRY_TIMEOUT_MS
    #define MQTT_SEND_RETRY_TIMEOUT_MS    ( 10U )
#endif

/* *INDENT-OFF* */
#ifdef __cplusplus
    }
#endif
/* *INDENT-ON* */

#endif /* ifndef CORE_MQTT_CONFIG_DEFAULTS_H_ */