Message transceiving method based on MQTT protocol for acquisition terminals

Abstract

The invention discloses a message transceiving method based on an MQTT protocol for acquisition terminals. A model comprises: a message sending part and a message receiving part, wherein the message sending of a message framework is divided into synchronous message sending, asynchronous message sending, and synchronous message sending, and comprises the following steps that: firstly, a message sending interface is called, and whether messages are in a callback function or not is judged; if not, MQTT theme formatting and preliminary message formatting are carried out; a message sending function is called to send the messages; finally, log printing and recording are carried out; the asynchronous message sending is as shown in a thread in figure 1 that: an asynchronous sending interface is called, messages are stored in a message queue after the messages are formatted, and then the messages are periodically obtained from the message queue through a periodic execution and by keeping threads alive, and then the messages are sent out; after a message receiving thread receives the messages, for messages with the callback function, a callback function will be called to process the messages, and for messages without the callback function, the messages will be stored in the message queue, and wait to be obtained.

Description

technical field [0001] The invention relates to the field of communication between a container and an app in a linux environment, in particular to an MQTT protocol-based message sending and receiving method for a collection terminal and its implementation. Background technique [0002] As the deployment scale and number of APP applications and container applications in the Linux environment become larger and larger, apps and containers require more frequent message interaction. In the linux environment, deploying multiple containers, and multiple apps, requires one-to-many between apps and containers, low-redundancy data push based on tcp connection, efficient, convenient and flexible communication, and a heartbeat mechanism to achieve flexibility and lightness. With the will message function, the final message can be retained after the application or container is disconnected and dropped. oS quality level + offline messages, messages of offline persistent sessions can also...

AI Technical Summary

Problems solved by technology

Especially using the existing application layer protocol for communication, ordinary inter-process ipc communication and other methods can no longer meet and realize cross-container message communication, and need to have both inter-process communication capabilities and cross-container communication capabilities

[0003] Therefore, it is necessary to provide a message sending and receiving method based on the MQTT protocol for collecting terminals and its implementation, which is used to solve the problem of information interaction between multiple containers and apps in the Linux environment

Images