浏览该文件的文档.
37#ifndef LWIP_HDR_APPS_MQTT_OPTS_H
38#define LWIP_HDR_APPS_MQTT_OPTS_H
55#ifndef MQTT_OUTPUT_RINGBUF_SIZE
56#define MQTT_OUTPUT_RINGBUF_SIZE 256
63#ifndef MQTT_VAR_HEADER_BUFFER_LEN
64#define MQTT_VAR_HEADER_BUFFER_LEN 128
70#ifndef MQTT_REQ_MAX_IN_FLIGHT
71#define MQTT_REQ_MAX_IN_FLIGHT 4
77#ifndef MQTT_CYCLIC_TIMER_INTERVAL
78#define MQTT_CYCLIC_TIMER_INTERVAL 5
84#ifndef MQTT_REQ_TIMEOUT
85#define MQTT_REQ_TIMEOUT 30
91#ifndef MQTT_CONNECT_TIMOUT
92#define MQTT_CONNECT_TIMOUT 100