1/** 2 * @file 3 * MQTT client options 4 */ 5 6/* 7 * Copyright (c) 2016 Erik Andersson 8 * All rights reserved. 9 * 10 * Redistribution and use in source and binary forms, with or without modification, 11 * are permitted provided that the following conditions are met: 12 * 13 * 1. Redistributions of source code must retain the above copyright notice, 14 * this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright notice, 16 * this list of conditions and the following disclaimer in the documentation 17 * and/or other materials provided with the distribution. 18 * 3. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 22 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 23 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 24 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 25 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 26 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 29 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 30 * OF SUCH DAMAGE. 31 * 32 * This file is part of the lwIP TCP/IP stack. 33 * 34 * Author: Erik Andersson 35 * 36 */ 37#ifndef LWIP_HDR_APPS_MQTT_OPTS_H 38#define LWIP_HDR_APPS_MQTT_OPTS_H 39 40#include "lwip/opt.h" 41 42#ifdef __cplusplus 43extern "C" { 44#endif 45 46/** 47 * @defgroup mqtt_opts Options 48 * @ingroup mqtt 49 * @{ 50 */ 51 52/** 53 * Output ring-buffer size, must be able to fit largest outgoing publish message topic+payloads 54 */ 55#ifndef MQTT_OUTPUT_RINGBUF_SIZE 56#define MQTT_OUTPUT_RINGBUF_SIZE 256 57#endif 58 59/** 60 * Number of bytes in receive buffer, must be at least the size of the longest incoming topic + 8 61 * If one wants to avoid fragmented incoming publish, set length to max incoming topic length + max payload length + 8 62 */ 63#ifndef MQTT_VAR_HEADER_BUFFER_LEN 64#define MQTT_VAR_HEADER_BUFFER_LEN 128 65#endif 66 67/** 68 * Maximum number of pending subscribe, unsubscribe and publish requests to server . 69 */ 70#ifndef MQTT_REQ_MAX_IN_FLIGHT 71#define MQTT_REQ_MAX_IN_FLIGHT 4 72#endif 73 74/** 75 * Seconds between each cyclic timer call. 76 */ 77#ifndef MQTT_CYCLIC_TIMER_INTERVAL 78#define MQTT_CYCLIC_TIMER_INTERVAL 5 79#endif 80 81/** 82 * Publish, subscribe and unsubscribe request timeout in seconds. 83 */ 84#ifndef MQTT_REQ_TIMEOUT 85#define MQTT_REQ_TIMEOUT 30 86#endif 87 88/** 89 * Seconds for MQTT connect response timeout after sending connect request 90 */ 91#ifndef MQTT_CONNECT_TIMOUT 92#define MQTT_CONNECT_TIMOUT 100 93#endif 94 95/** 96 * @} 97 */ 98 99#ifdef __cplusplus 100} 101#endif 102 103#endif /* LWIP_HDR_APPS_MQTT_OPTS_H */ 104