Method and device for inter-process communication

Abstract

The embodiment of the invention provides an interprocess communication method and equipment, and relates to the field of communication control. Network socket loopback data transmission is used for conducting interprocess communication, communication messages can not work within a system range, and multiplexing or controlling can be facilitated. Meanwhile, a destination address is set to be a network loopback address, data forwarding is achieved on a protocol layer, and the speed of interprocess communication is improved. The interprocess communication method comprises the steps that a first IPC module receives data sent by a first process; the data is packaged to form a data package, the data package comprises a package head and data, and the package head comprises a source address, a port number of a source process, a network loopback address and a port number of a destination process; the data package is sent to an operation system, and the operation system is made to send the data package to a second process according to the destination address and the port number of the destination process; meanwhile, the second process can also sends data to the first process by the interprocess communication method.

Description

technical field [0001] The invention relates to the field of communication control, in particular to a method and device for inter-process communication. Background technique [0002] The user-mode process under the Linux system is the basic unit of dynamic execution of the operating system, and it is an execution process of the program. On the same platform (that is, the same host), each process runs within its own address range. Different processes are separated from each other, just like people in different cities, in order to work together, they need to communicate in some way. In order to solve this problem, the Linux operating system provides some commonly used inter-process communication (Inter-Process Communication, IPC for short) methods, such as pipes, named pipes, signals, message queues, shared memory and semaphores, etc. The communication method has the following two disadvantages: [0003] 1) Since the IPC structure works within the system and there is no acc...

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Problems solved by technology

[0003] 1) Since the IPC structure works within the system and there is no access count, it is inconvenient to delete the communication message within the system;

[0004] 2) Since the IPC structure is not known by the file system by name, that is, it does not use file description operations, so multiplexing cannot be performed, which is inconvenient for multiplexing control

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