MQTTUnsubscribeServer.c File Reference

#include "MQTTPacket.h"
#include "StackTrace.h"
#include <string.h>

Functions
int	MQTTDeserialize_unsubscribe (unsigned char *dup, unsigned short *packetid, int maxcount, int *count, MQTTString topicFilters[], unsigned char *buf, int len)
	Deserializes the supplied (wire) buffer into unsubscribe data. More...
int	MQTTSerialize_unsuback (unsigned char *buf, int buflen, unsigned short packetid)
	Serializes the supplied unsuback data into the supplied buffer, ready for sending. More...

int MQTTDeserialize_unsubscribe	(	unsigned char *	dup,
		unsigned short *	packetid,
		int	maxcount,
		int *	count,
		MQTTString	topicFilters[],
		unsigned char *	buf,
		int	len
	)

Deserializes the supplied (wire) buffer into unsubscribe data.

Parameters

dup	integer returned - the MQTT dup flag
packetid	integer returned - the MQTT packet identifier
maxcount	- the maximum number of members allowed in the topicFilters and requestedQoSs arrays
count	- number of members in the topicFilters and requestedQoSs arrays
topicFilters	- array of topic filter names
buf	the raw buffer data, of the correct length determined by the remaining length field
buflen	the length in bytes of the data in the supplied buffer

Returns

the length of the serialized data. <= 0 indicates error

References MQTTHeader::bits, buf, MQTTHeader::byte, MQTTHeader::dup, FUNC_ENTRY, FUNC_EXIT_RC, header, MQTTPacket_decodeBuf(), NULL, readChar(), readInt(), readMQTTLenString(), MQTTHeader::type, and UNSUBSCRIBE.

Referenced by MQTTFormat_toServerString().

int MQTTSerialize_unsuback	(	unsigned char *	buf,
		int	buflen,
		unsigned short	packetid
	)

Serializes the supplied unsuback data into the supplied buffer, ready for sending.

Parameters

buf	the buffer into which the packet will be serialized
buflen	the length in bytes of the supplied buffer
packetid	integer - the MQTT packet identifier

Returns

the length of the serialized data. <= 0 indicates error

References MQTTHeader::bits, buf, MQTTHeader::byte, FUNC_ENTRY, FUNC_EXIT_RC, header, MQTTPACKET_BUFFER_TOO_SHORT, MQTTPacket_encode(), ptr, MQTTHeader::type, UNSUBACK, writeChar(), and writeInt().