mqtt.h File Reference

#include <stdint.h>
#include "aws_iot_mqtt_client.h"
#include "aws_iot_error.h"

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Macros
#define	MQTT_CONNECT_MAX_ATTEMPT_COUNT   3
#define	MQTT_YIELD_TIME   10
#define	MQTT_YIELD_PERIOD   100

Functions
IoT_Error_t	MQTT_Init (void)
IoT_Error_t	MQTT_Subscribe (char *topic, QoS qos, pApplicationHandler_t callback, char *pData)
IoT_Error_t	MQTT_Publish (char *topic, QoS qos, char *pData, size_t dLen)
IoT_Error_t	MQTT_Unsubscribe (char *topic)

Macro Definition Documentation

#define MQTT_CONNECT_MAX_ATTEMPT_COUNT   3

#define MQTT_YIELD_PERIOD   100

#define MQTT_YIELD_TIME   10

Function Documentation

IoT_Error_t MQTT_Init

(

void

)

Initalize the MQTT Device

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IoT_Error_t MQTT_Publish	(	char *	topic,
		QoS	qos,
		char *	pData,
		size_t	dLen
	)

Publish to a topic

Parameters

topic	- Topic to publish to
qos	- Quality of service of the MQTT connection
pData	- Data being published
dLen	- Length of the data

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IoT_Error_t MQTT_Subscribe	(	char *	topic,
		QoS	qos,
		pApplicationHandler_t	callback,
		char *	pData
	)

Subscribe to a topic

Parameters

topic	- Topic to subscribe to
qos	- Quality of Service of the MQTT connection
callback	- Handles receiving data from the broker
pData	- Pointer to data that gets sent to the callback handler (make it NULL / 0 if not used)

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IoT_Error_t MQTT_Unsubscribe

(

char *

topic

)

Unsubscribe from a topic

Parameters

topic

- The topic to unsubscribe from