An inter-process communication method and system

Abstract

The embodiment of the invention relates to an inter-process communication method and system, which is used for transmitting communication data from a first process to a second process. The method comprises the steps of conducting the initialization configuration on a first process and a second process, and opening a first memory space in a shared memory space; selecting a communication mode according to the length of the communication data and a threshold value, wherein the threshold value is the size of the first memory space; and performing the data interaction between processes through theselected communication mode. When the length of the communication data is smaller than a threshold value, a shared memory mode is selected for communication, and when the length of the communication data reaches or exceeds the threshold value, a data file mode is selected for communication. According to the embodiment of the invention, the problem of time delay caused by memory copying and allocation release is solved, and the problem of limitation of data volume carried by a Binder communication mechanism is solved.

Description

technical field [0001] The invention relates to the field of computers, in particular to an inter-process communication method and system. Background technique [0002] Inter-Process Communication (IPC) is one of the communication transfer technologies, which is mainly used for message transfer between different processes in a computer system. At present, there are mainly mechanisms such as pipeline communication, Socket, and shared memory. [0003] In existing terminal operating systems, such as Android (Android TM ) The message communication foundation in the system has a communication mechanism called Binder, which is an IPC communication mechanism. In principle, it is also a communication mechanism based on the C / S architecture, but the Binder communication uses internal proxy communication, so that when the Binder client communicates, it seems to be operating locally. At the same time, Binder does not need to know the port of the peer service when communicating, but ...

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a method and system for inter-process communication, which solves the delay problem caused by memory copy and allocation release, and the problem of the limitation of the amount of data carried by the Binder communication mechanism

Solved the delay problem caused by memory copy and allocation release, as well as the limitation of the amount of data carried by the Binder communication mechanism in Android

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