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#ifndef PACKET_H
#define PACKET_H
#include "config.h"
#include <stdlib.h>
#include <stdint.h>
#include <assert.h>
#include <bstrlib/bstrlib.h>
#include "queue.h"
enum
{
MqttPacketTypeConnect = 0x1,
MqttPacketTypeConnAck = 0x2,
MqttPacketTypePublish = 0x3,
MqttPacketTypePubAck = 0x4,
MqttPacketTypePubRec = 0x5,
MqttPacketTypePubRel = 0x6,
MqttPacketTypePubComp = 0x7,
MqttPacketTypeSubscribe = 0x8,
MqttPacketTypeSubAck = 0x9,
MqttPacketTypeUnsubscribe = 0xA,
MqttPacketTypeUnsubAck = 0xB,
MqttPacketTypePingReq = 0xC,
MqttPacketTypePingResp = 0xD,
MqttPacketTypeDisconnect = 0xE
};
typedef struct MqttPacket MqttPacket;
struct MqttPacket
{
int type;
uint16_t id;
int state;
int flags;
int64_t sentAt;
SIMPLEQ_ENTRY(MqttPacket) sendQueue;
TAILQ_ENTRY(MqttPacket) messages;
};
#define MqttPacketType(packet) (((MqttPacket *) (packet))->type)
#define MqttPacketId(packet) (((MqttPacket *) (packet))->id)
#define MqttPacketSentAt(packet) (((MqttPacket *) (packet))->sentAt)
typedef struct MqttPacketConnect MqttPacketConnect;
struct MqttPacketConnect
{
MqttPacket base;
char connectFlags;
uint16_t keepAlive;
bstring clientId;
bstring willTopic;
bstring willMessage;
bstring userName;
bstring password;
};
typedef struct MqttPacketConnAck MqttPacketConnAck;
struct MqttPacketConnAck
{
MqttPacket base;
unsigned char connAckFlags;
unsigned char returnCode;
};
typedef struct MqttPacketPublish MqttPacketPublish;
struct MqttPacketPublish
{
MqttPacket base;
bstring topicName;
bstring message;
char qos;
char dup;
char retain;
};
#define MqttPacketPublishQos(p) (((MqttPacketPublish *) p)->qos)
#define MqttPacketPublishDup(p) (((MqttPacketPublish *) p)->dup)
#define MqttPacketPublishRetain(p) (((MqttPacketPublish *) p)->retain)
typedef struct MqttPacketSubscribe MqttPacketSubscribe;
struct MqttPacketSubscribe
{
MqttPacket base;
bstring topicFilter;
char qos;
};
typedef struct MqttPacketSubAck MqttPacketSubAck;
struct MqttPacketSubAck
{
MqttPacket base;
unsigned char returnCode;
};
typedef struct MqttPacketUnsubscribe MqttPacketUnsubscribe;
struct MqttPacketUnsubscribe
{
MqttPacket base;
bstring topicFilter;
};
const char *MqttPacketName(int type);
MqttPacket *MqttPacketNew(int type);
MqttPacket *MqttPacketWithIdNew(int type, uint16_t id);
void MqttPacketFree(MqttPacket *packet);
int MqttPacketHasId(const MqttPacket *packet);
#endif
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