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mosquitto. H learning

2022-07-18 11:09:00 【Fog_ in】

( from mosquitto.h)

Catalog

Library version 、 initialization 、 clear ：

Client creation 、 Destroy and initialize  

  User name and password settings

Connect 、 Reconnection 、 Disconnection

Release 、 subscribe 、 Unsubscribe

Callback function

Library version 、 initialization 、 clear ：

mosquitto_lib_version Available for acquisition mosquitto Library version information .
mosquitto_lib_init Must be in any other mosquitto Call before function .
mosquitto_lib_cleanup Call the free resources associated with the Library .

Client creation 、 Destroy and initialize  

mosquitto_new Create a new mosquitto Client instance .
mosquitto_destroy Used to release and mosquitto Memory associated with the client instance .
mosquitto_reinitialise This function allows you to reuse existing mosquitto client .

  User name and password settings

mosquitto_username_pw_set by mosquitto Instance configuration user name and password .

Connect 、 Reconnection 、 Disconnection

mosquitto_connect Connect to MQTT agent .
mosquitto_connect_bind Connect to MQTT agent .
mosquitto_connect_bind_v5 Connect to MQTT agent .
mosquitto_connect_async Connect to MQTT agent .
mosquitto_connect_bind_async Connect to MQTT agent .
mosquitto_connect_srv Connect to MQTT agent .
mosquitto_reconnect Reconnect to the agent .
mosquitto_reconnect_async Reconnect to the agent .
mosquitto_disconnect Disconnect from agent .
mosquitto_disconnect_v5 Disconnect from agent , And attached MQTT attribute .

Release 、 subscribe 、 Unsubscribe

mosquitto_publish Post a message about a given topic .
mosquitto_publish_v5 Post a message about a given topic , And add MQTT attribute .
mosquitto_subscribe Subscribe to topics .
mosquitto_subscribe_v5 Subscription has additional MQTT The theme of the attribute .
mosquitto_subscribe_multiple Subscribe to multiple topics .
mosquitto_unsubscribe Unsubscribe from a topic .
mosquitto_unsubscribe_v5 Unsubscribe has additional MQTT The theme of the attribute .
mosquitto_unsubscribe_multiple Unsubscribe from multiple topics .

Callback function

mosquitto_connect_callback_set Set connection callback .
mosquitto_connect_with_flags_callback_set Set connection callback .
mosquitto_connect_v5_callback_set Set connection callback .
mosquitto_disconnect_callback_set Set the disconnect callback .
mosquitto_disconnect_v5_callback_set Set the disconnect callback .
mosquitto_publish_callback_set Set publish callback .
mosquitto_publish_v5_callback_set Set publish callback .
mosquitto_message_callback_set Set the message callback .
mosquitto_message_v5_callback_set Set the message callback .
mosquitto_subscribe_callback_set Set subscription callback .
mosquitto_subscribe_v5_callback_set Set subscription callback .
mosquitto_unsubscribe_callback_set Set unsubscribe callback .
mosquitto_unsubscribe_v5_callback_set Set unsubscribe callback .
mosquitto_log_callback_set Set logging callback .

Network loop  

mosquitto_loop_forever This function calls... For you in an infinite blocking loop loop（）.
mosquitto_loop_start This is part of the threaded client interface .
mosquitto_loop_stop This is part of the threaded client interface .
mosquitto_loop The main network loop of the client .

Network cycle  

mosquitto_socket return mosquitto Socket handle of the instance .
mosquitto_want_write If there is data ready to be written to the socket , Then return to true.
mosquitto_threaded_set Used to tell the library that the application is using threads , But don't use mosquitto_loop_start.


TLS Support  

mosquitto_tls_set Configure the client to get certificate based SSL/TLS Support .
mosquitto_tls_insecure_set Configure the authentication of the server hostname in the server certificate .
mosquitto_tls_opts_set Set up advanced SSL/TLS Options .
mosquitto_tls_psk_set Configure the client to obtain a pre shared key based TLS Support .
mosquitto_ssl_get Retrieve points to this client for TLS Connected SSL Pointer to structure .

Utility functions  

mosquitto_strerror Call to get mosquitto Error number const String description .
mosquitto_connack_string Call to get MQTT Connection result const String description .
mosquitto_reason_string Call to get MQTT Reason code const String description .
mosquitto_string_to_command Get representation MQTT Command string input , And convert it to libmosquitto Integer representation .
mosquitto_sub_topic_tokenise Tokenize a topic or subscription string into an array of strings representing the topic hierarchy .
mosquitto_sub_topic_tokens_freemosquitto_sub_topic_tokenise Available memory allocated in .
mosquitto_topic_matches_sub Check whether the topic matches the subscription .
mosquitto_topic_matches_sub2 Check whether the topic matches the subscription .
mosquitto_pub_topic_check Check whether the topic used for publishing is valid .
mosquitto_pub_topic_check2 Check whether the topic used for publishing is valid .
mosquitto_sub_topic_check Check whether the topic used for subscription is valid .
mosquitto_sub_topic_check2 Check whether the topic used for subscription is valid .
mosquitto_validate_utf8 Helper functions , For use in accordance with UTF-8 Normative and MQTT Added item verification UTF-8 Whether the string is valid .
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