Heartbeat packet asynchronous control method and apparatus

Abstract

The invention relates to the technical field of heartbeat packet control and especially relates to a heartbeat packet asynchronous control method and apparatus. The heartbeat packet asynchronous control method comprises the following steps: step A, performing server socket communication parameter initialization and server communication model initialization, and establishing a monitoring socket descriptor; step B, establishing and initializing a server dynamic list; step C, initializing and starting a system timer controlling a heartbeat packet; and step D, invoking a monitoring function, determining whether a client communication event is triggered, if so, a server main program exiting from the monitoring function, and the server traversing and processing the communication event, and if not, continuously waiting until the client communication event is triggered. According to the invention, by use of an Epoll server model of a linux system, the method and apparatus are simple, reliable and highly efficient, the problems of multithread programming and protocol complexity are overcome, system memory resources are fully utilized, heartbeat packet data is efficiently processed.

Description

Technical field [0001] The invention relates to the technical field of heartbeat packet control, in particular to a method and device for asynchronous control of heartbeat packets. Background technique [0002] A heartbeat packet is usually a data packet sent by the client to the server every short period of time to inform the server that it is still online and transmit some necessary data. The server will reply with a fixed message after receiving it. If the server is in the specified time If no client information is received, the client is considered disconnected. Because it is sent at a certain time interval, it is similar to a heartbeat, so it is called a heartbeat packet. The content of the heartbeat packet is not specifically defined, it is usually a small packet or just an empty packet containing the header. [0003] Heartbeat packets are very important in the communication between wearable devices and remote servers, because most wearable devices currently use GRPS networ...

AI Technical Summary

Problems solved by technology

This mechanism is simple and reliable, but has the following disadvantages: SO_KEEPALIVE cannot be controlled, it will be sent every moment; SO_KEEPALIVE is set to idle for 2 hours before sending a "keep alive detection segment", which cannot guarantee real-time detection, so it is very important for judging network disconnection The time is too long, and it is not suitable for programs that require timely response

However, the disadvantage of the above method is: for the operating system, if the number of online clients is huge, the development of processes and threads will require frequent development and Destroying threads is also a big overhead for the system, and the programming is more complicated, it is difficult to ensure the synchronization of multi-thread communication, and it is easy to cause thread deadlock

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