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#define	MQTT_OUTPUT_RINGBUF_SIZE   256
#define	MQTT_VAR_HEADER_BUFFER_LEN   128
#define	MQTT_REQ_MAX_IN_FLIGHT   4
#define	MQTT_CYCLIC_TIMER_INTERVAL   5
#define	MQTT_REQ_TIMEOUT   30
#define	MQTT_CONNECT_TIMOUT   100

Macro Definition Documentation

#define MQTT_OUTPUT_RINGBUF_SIZE   256

Output ring-buffer size, must be able to fit largest outgoing publish message topic+payloads

#define MQTT_VAR_HEADER_BUFFER_LEN   128

Number of bytes in receive buffer, must be at least the size of the longest incoming topic + 8 If one wants to avoid fragmented incoming publish, set length to max incoming topic length + max payload length + 8

#define MQTT_REQ_MAX_IN_FLIGHT   4

Maximum number of pending subscribe, unsubscribe and publish requests to server .

#define MQTT_CYCLIC_TIMER_INTERVAL   5

Seconds between each cyclic timer call.

#define MQTT_REQ_TIMEOUT   30

Publish, subscribe and unsubscribe request timeout in seconds.

#define MQTT_CONNECT_TIMOUT   100

Seconds for MQTT connect response timeout after sending connect request