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 43 extern "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