A method and system for inter-process communication

Abstract

Embodiments of the present invention relate to a method and system for inter-process communication, which are used to transmit communication data from a first process to a second process. The method includes: initializing and configuring the first process and the second process, including opening up a first memory space in a shared memory space; selecting a communication mode according to the length of communication data and the size of a threshold, wherein the threshold is the size of the first memory space; Data exchange between processes is carried out through the selected communication method. When the communication data length is less than the threshold, select the shared memory mode for communication, and when the communication data length reaches or exceeds the threshold value, select the data file mode for communication. The embodiment of the present invention solves the problem of delay caused by memory copy and allocation release, and the problem of limitation of the amount of data carried by the Binder communication mechanism.

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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