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/*
* This file is subject to the terms and conditions defined in
* file 'LICENSE', which is part of this source code package.
* Tuan PM <tuanpm at live dot com>
*/
#ifndef _MQTT_OUTOBX_H_
#define _MQTT_OUTOBX_H_
#include "platform.h"
#include "esp_err.h"
#ifdef __cplusplus
extern "C" {
#endif
struct outbox_item;
typedef struct outbox_t *outbox_handle_t;
typedef struct outbox_item *outbox_item_handle_t;
typedef struct outbox_message *outbox_message_handle_t;
typedef long long outbox_tick_t;
typedef struct outbox_message {
uint8_t *data;
int len;
int msg_id;
int msg_qos;
int msg_type;
uint8_t *remaining_data;
int remaining_len;
} outbox_message_t;
typedef enum pending_state {
QUEUED,
TRANSMITTED,
ACKNOWLEDGED,
CONFIRMED
} pending_state_t;
outbox_handle_t outbox_init(void);
outbox_item_handle_t outbox_enqueue(outbox_handle_t outbox, outbox_message_handle_t message, outbox_tick_t tick);
outbox_item_handle_t outbox_dequeue(outbox_handle_t outbox, pending_state_t pending, outbox_tick_t *tick);
outbox_item_handle_t outbox_get(outbox_handle_t outbox, int msg_id);
uint8_t *outbox_item_get_data(outbox_item_handle_t item, size_t *len, uint16_t *msg_id, int *msg_type, int *qos);
esp_err_t outbox_delete(outbox_handle_t outbox, int msg_id, int msg_type);
esp_err_t outbox_delete_item(outbox_handle_t outbox, outbox_item_handle_t item);
int outbox_delete_expired(outbox_handle_t outbox, outbox_tick_t current_tick, outbox_tick_t timeout);
/**
* @brief Deletes single expired message returning it's message id
*
* @return msg id of the deleted message, -1 if no expired message in the outbox
*/
int outbox_delete_single_expired(outbox_handle_t outbox, outbox_tick_t current_tick, outbox_tick_t timeout);
esp_err_t outbox_set_pending(outbox_handle_t outbox, int msg_id, pending_state_t pending);
pending_state_t outbox_item_get_pending(outbox_item_handle_t item);
esp_err_t outbox_set_tick(outbox_handle_t outbox, int msg_id, outbox_tick_t tick);
uint64_t outbox_get_size(outbox_handle_t outbox);
void outbox_destroy(outbox_handle_t outbox);
void outbox_delete_all_items(outbox_handle_t outbox);
#ifdef __cplusplus
}
#endif
#endif
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