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

Abstract

The invention provides an inter-process communication method, electronic equipment and a readable storage medium. The method for performing asynchronous data communication between one server process and a plurality of client processes through named pipes of Windows is provided. The method comprises the steps of creating a service thread; calling an accept function, and creating overlapped IOs andcalling a CreateNamedPipe function with a preset security access attribute to create asynchronous named pipe handles, transmitting the named pipe handles into Pointer fields of the overlapped IOs, calling a ConnectNamedPipe function, asynchronously waiting for asynchronous tasks from a client, and storing the overlapped IOs into storage spaces corresponding to the asynchronous tasks; and cyclically viewing the overlapped IOs in the first storage space, the second storage space and the third storage space through a service thread, and if it is viewed that the processing of the current overlapped IO is completed, continuing to process the overlapped IO of the next storage space.

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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