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https://github.com/espressif/esp-mqtt.git
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470cb93049
In the mqtt5 protocol the broker can disconnect the client with a disconnect packet. This packet contains a reason value that can be useful for certain applications in which it is important to know the reason of disconnection. While the client is connected is possible that a disconnect packet is reaceived by the broker to force a disconnection. Before this patch this approach causes a generic error on transport in case of disconnection from the broker. If the packet is managed before getting an error it is possible to save the reason code in the disconnect_return_code variable in the error_handle, and dispatch the disconnect event that can be managed by the application event loop, that now can know the reason of disconnection from the broker. Reset the variable in case of error. Signed-off-by: Flavia Caforio <flavia.caforio@amarulasolutions.com>
56 lines
2.3 KiB
C
56 lines
2.3 KiB
C
/*
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* SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef _MQTT5_CLIENT_PRIV_H_
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#define _MQTT5_CLIENT_PRIV_H_
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#include "mqtt5_client.h"
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#include "mqtt_client_priv.h"
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#include "mqtt5_msg.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct mqtt5_topic_alias {
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char *topic;
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uint16_t topic_len;
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uint16_t topic_alias;
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STAILQ_ENTRY(mqtt5_topic_alias) next;
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} mqtt5_topic_alias_t;
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STAILQ_HEAD(mqtt5_topic_alias_list_t, mqtt5_topic_alias);
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typedef struct mqtt5_topic_alias_list_t *mqtt5_topic_alias_handle_t;
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typedef struct mqtt5_topic_alias *mqtt5_topic_alias_item_t;
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typedef struct {
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esp_mqtt5_connection_property_storage_t connect_property_info;
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esp_mqtt5_connection_will_property_storage_t will_property_info;
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esp_mqtt5_connection_server_resp_property_t server_resp_property_info;
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esp_mqtt5_disconnect_property_config_t disconnect_property_info;
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const esp_mqtt5_publish_property_config_t *publish_property_info;
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const esp_mqtt5_subscribe_property_config_t *subscribe_property_info;
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const esp_mqtt5_unsubscribe_property_config_t *unsubscribe_property_info;
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mqtt5_topic_alias_handle_t peer_topic_alias;
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} mqtt5_config_storage_t;
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void esp_mqtt5_increment_packet_counter(esp_mqtt5_client_handle_t client);
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void esp_mqtt5_decrement_packet_counter(esp_mqtt5_client_handle_t client);
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void esp_mqtt5_parse_pubcomp(esp_mqtt5_client_handle_t client);
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void esp_mqtt5_parse_puback(esp_mqtt5_client_handle_t client);
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void esp_mqtt5_parse_unsuback(esp_mqtt5_client_handle_t client);
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void esp_mqtt5_parse_suback(esp_mqtt5_client_handle_t client);
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void esp_mqtt5_parse_disconnect(esp_mqtt5_client_handle_t client, int *disconnect_rsp_code);
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esp_err_t esp_mqtt5_parse_connack(esp_mqtt5_client_handle_t client, int *connect_rsp_code);
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void esp_mqtt5_client_destory(esp_mqtt5_client_handle_t client);
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esp_err_t esp_mqtt5_client_publish_check(esp_mqtt5_client_handle_t client, int qos, int retain);
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esp_err_t esp_mqtt5_client_subscribe_check(esp_mqtt5_client_handle_t client, int qos);
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esp_err_t esp_mqtt5_create_default_config(esp_mqtt5_client_handle_t client);
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esp_err_t esp_mqtt5_get_publish_data(esp_mqtt5_client_handle_t client, uint8_t *msg_buf, size_t msg_read_len, char **msg_topic, size_t *msg_topic_len, char **msg_data, size_t *msg_data_len);
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#ifdef __cplusplus
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}
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#endif //__cplusplus
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#endif |