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Deadlock unlocking method

A deadlock and business technology, applied in the direction of multi-programming devices, etc., can solve the problems of system resource utilization and system throughput reduction, strictness, etc., and achieve the effect of eliminating deadlock problems and high-efficiency deadlock problems

Inactive Publication Date: 2015-03-04
PHICOMM (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the imposed constraints are often too strict, system resource utilization and system throughput may be reduced

Method used

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  • Deadlock unlocking method

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Embodiment Construction

[0019] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only a part of the present invention implementation, but not all implementations.

[0020] The invention provides a deadlock-relieving method. When the system is running, key business data required by all business processes are backed up in real time, and at the same time, these data are saved and shared in the form of shared memory. When a deadlock is detected, all business processes are terminated and restarted. After the relevant business processes are started, the previously backed up business data is restored from the shared memory, and the business processes start processing tasks.

[0021] Such as figure 1 Shown, the method for removing deadlock of the present...

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Abstract

The invention provides a deadlock unlocking method, which comprises the following steps that data in each running service process are backed up in real time; when the deadlock of the service processes occurs, all of the service processes are terminated, and all of the service processes are restarted; during the service process initialization, the backed up data are restored into each service process, each service process normally runs, and in addition, the service processing starts. The method has the advantages that the data of each service process are backed up in real time, the data are restored in real time after the restarting of each service process due to deadlock, the service is started, and the deadlock problem is simply and efficiently solved.

Description

technical field [0001] The invention relates to an Internet access communication technology of a broadband modem, in particular to a method for realizing Internet access through a LAN port of the broadband modem. Background technique [0002] Deadlock: It refers to a phenomenon in which two or more processes wait for each other due to competition for resources during execution. If there is no external force, they will not be able to advance. At this time, the system is said to be in a deadlock state or a deadlock has occurred in the system, and these processes that are always waiting for each other are called deadlock processes. [0003] There are several ways to deal with deadlock: [0004] 1. Prevent deadlock [0005] This is a relatively simple and intuitive method of prior prevention. The method is to prevent deadlock by setting certain restrictions to destroy one or several of the four necessary conditions for deadlock. Deadlock prevention is an easy-to-implement me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/46
Inventor 刘君刘驰
Owner PHICOMM (SHANGHAI) CO LTD
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