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esp-link/mqtt/mqtt.h

143 lines
4.8 KiB

/* mqtt.h
*
* Copyright (c) 2014-2015, Tuan PM <tuanpm at live dot com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of Redis nor the names of its contributors may be used
* to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef USER_AT_MQTT_H_
#define USER_AT_MQTT_H_
#include <esp8266.h>
#include "mqtt_msg.h"
#include "queue.h"
typedef struct mqtt_event_data_t {
uint8_t type;
const char* topic;
const char* data;
uint16_t topic_length;
uint16_t data_length;
uint16_t data_offset;
} mqtt_event_data_t;
typedef struct mqtt_state_t {
uint16_t port;
int auto_reconnect;
mqtt_connect_info_t* connect_info;
uint8_t* in_buffer;
uint8_t* out_buffer;
int in_buffer_length;
int out_buffer_length;
uint16_t message_length;
uint16_t message_length_read;
mqtt_message_t* outbound_message;
mqtt_connection_t mqtt_connection;
uint16_t pending_msg_id;
int pending_msg_type;
int pending_publish_qos;
} mqtt_state_t;
typedef enum {
WIFI_INIT,
WIFI_CONNECTING,
WIFI_CONNECTING_ERROR,
WIFI_CONNECTED,
DNS_RESOLVE,
TCP_DISCONNECTED,
TCP_RECONNECT_REQ,
TCP_RECONNECT,
TCP_CONNECTING,
TCP_CONNECTING_ERROR,
TCP_CONNECTED,
MQTT_CONNECT_SEND,
MQTT_CONNECT_SENDING,
MQTT_SUBSCIBE_SEND,
MQTT_SUBSCIBE_SENDING,
MQTT_DATA,
MQTT_PUBLISH_RECV,
MQTT_PUBLISHING
} tConnState;
typedef void (*MqttCallback)(uint32_t* args);
typedef void (*MqttDataCallback)(uint32_t* args, const char* topic, uint32_t topic_len, const char* data, uint32_t lengh);
typedef struct {
struct espconn* pCon;
uint8_t security;
char* host;
uint32_t port;
ip_addr_t ip;
mqtt_state_t mqtt_state;
mqtt_connect_info_t connect_info;
MqttCallback connectedCb;
MqttCallback cmdConnectedCb;
MqttCallback disconnectedCb;
MqttCallback cmdDisconnectedCb;
MqttCallback tcpDisconnectedCb;
MqttCallback cmdTcpDisconnectedCb;
MqttCallback publishedCb;
MqttCallback cmdPublishedCb;
MqttDataCallback dataCb;
MqttDataCallback cmdDataCb;
ETSTimer mqttTimer;
uint32_t keepAliveTick;
uint32_t reconnectTick;
uint32_t sendTimeout;
tConnState connState;
QUEUE msgQueue;
void* user_data;
} MQTT_Client;
#define SEC_NONSSL 0
#define SEC_SSL 1
#define MQTT_FLAG_CONNECTED 1
#define MQTT_FLAG_READY 2
#define MQTT_FLAG_EXIT 4
#define MQTT_EVENT_TYPE_NONE 0
#define MQTT_EVENT_TYPE_CONNECTED 1
#define MQTT_EVENT_TYPE_DISCONNECTED 2
#define MQTT_EVENT_TYPE_SUBSCRIBED 3
#define MQTT_EVENT_TYPE_UNSUBSCRIBED 4
#define MQTT_EVENT_TYPE_PUBLISH 5
#define MQTT_EVENT_TYPE_PUBLISHED 6
#define MQTT_EVENT_TYPE_EXITED 7
#define MQTT_EVENT_TYPE_PUBLISH_CONTINUATION 8
void MQTT_InitConnection(MQTT_Client* mqttClient, char* host, uint32 port, uint8_t security);
void MQTT_InitClient(MQTT_Client* mqttClient, char* client_id, char* client_user, char* client_pass, uint8_t keepAliveTime, uint8_t cleanSession);
void MQTT_InitLWT(MQTT_Client* mqttClient, char* will_topic, char* will_msg, uint8_t will_qos, uint8_t will_retain);
void MQTT_OnConnected(MQTT_Client* mqttClient, MqttCallback connectedCb);
void MQTT_OnDisconnected(MQTT_Client* mqttClient, MqttCallback disconnectedCb);
void MQTT_OnPublished(MQTT_Client* mqttClient, MqttCallback publishedCb);
void MQTT_OnData(MQTT_Client* mqttClient, MqttDataCallback dataCb);
bool MQTT_Subscribe(MQTT_Client* client, char* topic, uint8_t qos);
void MQTT_Connect(MQTT_Client* mqttClient);
void MQTT_Disconnect(MQTT_Client* mqttClient);
bool MQTT_Publish(MQTT_Client* client, const char* topic, const char* data, uint8_t qos, uint8_t retain);
#endif /* USER_AT_MQTT_H_ */