mqtt.h

/*
 * Copyright (C) 2022 Mikhail Burakov. This file is part of mqttfs.
 *
 * mqttfs is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * mqttfs is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with mqttfs.  If not, see <https://www.gnu.org/licenses/>.
 */

#ifndef MQTTFS_MQTT_H_
#define MQTTFS_MQTT_H_

#include <stddef.h>
#include <stdint.h>

struct Str;

typedef void (*MqttMessageCallback)(void* user, const struct Str* topic,
                                    const void* payload, size_t payload_len);

struct Mqtt* MqttCreate(const char* host, uint16_t port, uint16_t keepalive,
                        int holdback, MqttMessageCallback callback, void* user);
_Bool MqttPublish(struct Mqtt* mqtt, const struct Str* topic,
                  const void* payload, size_t payload_len);
void MqttCancel(struct Mqtt* mqtt, const struct Str* topic);
void MqttDestroy(struct Mqtt* mqtt);

#endif  // MQTTFS_MQTT_H_