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Method and device for achieving process mutual exclusion

A process and target technology, applied in the field of mutual exclusion of processes, can solve problems such as the inability to apply multi-control distributed systems, and achieve the effect of meeting the needs of mutual exclusion of processes

Active Publication Date: 2015-01-07
上海浪潮云计算服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Semaphore technology needs to be implemented based on public memory, but in a multi-control distributed system, there is no public memory, so the traditional process mutual exclusion method based on semaphore technology cannot be applied to a multi-control distributed system

Method used

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  • Method and device for achieving process mutual exclusion
  • Method and device for achieving process mutual exclusion

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Embodiment Construction

[0028] In order to make the object, technical solution and advantages of the present invention clearer, the process of the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

[0029] The steps shown in the flowcharts of the figures may be performed in a computer system, such as a set of computer-executable instructions. Also, although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.

[0030] First of all, it needs to be explained that all processes that need to process critical resources can use the method of the present invention to realize process mutual exclusion.

[0031] figure 1 The flow chart of the method for realiz...

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Abstract

The invention discloses a method and a device for achieving process mutual exclusion. The method includes that locking processing is performed on a target lock of each controller sequentially according to a preset controller locking sequence, the target locks on the controllers correspond to to-be-processed critical resources, and after the critical resources are processed, unlocking processing is performed on the target locks on the controllers sequentially according to a reverse sequence of the controller locking sequence. According to the method and the device for achieving process mutual exclusion in the technical scheme, process mutual exclusion is achieved under the condition of simultaneous processing of the critical resources in a multi-control distributed system.

Description

technical field [0001] The invention relates to distributed system technology, in particular to a method and device for realizing mutual exclusion of processes in a multi-control distributed system. Background technique [0002] With the rapid development of information technology, multi-control distributed systems have been widely used. A multi-control distributed system is a distributed computer system formed by a group of controllers (for example, independent autonomous computers) interconnected through a network. In a multi-control distributed system, each controller has an equal status, and users can manage the multi-control distributed system through any controller. In this way, it is easy for processes in multiple controllers to simultaneously process the same critical resource in a multi-controller distributed system. [0003] A critical resource is a resource that only one process can handle at a time. At present, in a centralized system (that is, a single-node s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/52
Inventor 何中辰吴庆民袁鹏飞
Owner 上海浪潮云计算服务有限公司