Inter-process communication method, electronic device and readable storage medium

Abstract

The invention provides an inter-process communication method, electronic equipment and a readable storage medium, which are used to provide a method for realizing asynchronous data communication between a server process and multiple client processes by using a named pipe of Windows. The method includes: creating a service thread; calling the accept function, creating an overlapped IO and calling the CreateNamedPipe function with preset security access attributes to create an asynchronous named pipe handle, passing the named pipe handle into the Pointer field of the overlapped IO, and calling the ConnectNamedPipe function , asynchronously wait for the asynchronous task from the client, store the overlapping IO in the storage space corresponding to the asynchronous task; check the overlapping IO in the first storage space, the second storage space and the third storage space through the service thread cycle, if you check The current overlapping IO processing is completed, and the overlapping IO of the next storage space continues to be processed.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to an inter-process communication method, electronic equipment and a readable storage medium. Background technique [0002] Under the Windows system, the named pipe NamedPipe can be used for inter-process communication. When using named pipes to implement inter-process data transmission, both asynchronous and synchronous methods can be used. If a synchronous method is used, when sending or receiving a large amount of data, it is very likely to cause blocking or freezing of the upper-layer application. When using asynchronous transmission, since the upper layer application will not return until all the data is processed, using named pipes for asynchronous transmission will have a better effect. When using named pipes in the prior art, most of them adopt a one-to-one manner, that is, communicate between a single process and a single process, and do not adopt a manner of communic...

AI Technical Summary

Problems solved by technology

When the server process starts with administrator privileges and creates a named pipe using the default security method, if the client opens the named pipe created on the server side with non-administrator privileges, the client will not be able to connect because of insufficient privileges The named pipe server causes an abnormal communication connection between the server and the client

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