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一个可处处中断的LOCK和UNLOCK算法
引用本文:吴建国,刘明业,姚领众,宋瀚涛.一个可处处中断的LOCK和UNLOCK算法[J].北京理工大学学报(英文版),1997,6(3):287-291.
作者姓名:吴建国  刘明业  姚领众  宋瀚涛
作者单位:北京理工大学专用集成电路研究所(吴建国,刘明业),北京理工大学计算中心(姚领众,宋瀚涛)
摘    要:一般的锁操作中Lock和Unlock语句需作为原语整体实施,即主要要求加锁的锁状态检查和加锁动作不可中断,与一般的锁操作法不同,本文给出一个可以处处被其他进程任意中断的锁操作Lock和Unlock的算法,并通过其在异构数据库系统中的一个应用,阐明了它在实现互斥操作和并发控制等方面的实用价值。

关 键 词:加锁算法,互斥操作,并发控制

An Interruptable Lock and Unlock Algorithm
Wu Jianguo,Liu Mingye,Yao Lingzhong and Song Hantao.An Interruptable Lock and Unlock Algorithm[J].Journal of Beijing Institute of Technology,1997,6(3):287-291.
Authors:Wu Jianguo  Liu Mingye  Yao Lingzhong and Song Hantao
Affiliation:ASIC Center, Beijing Institute of technology, beijing 100081;ASIC Center, Beijing Institute of technology, beijing 100081;Computer center, Beijing Institute of Technology, Beijing 100081;Computer center, Beijing Institute of Technology, Beijing 100081
Abstract:Generally, Lock and Unlock statements are primitives that should be wholly imple- mented,i.e.,the test of lock state and the operation of locking must be executed continuously without being interrupted. Different from nmormal lock operations, the lock and Unlock algorithm Presented in this paper can be interrupted anywhere by other processes The value of the algorithm in the implementation of concurrent control and mutually-exclusive operations was elucidated with one application of the algorithm in a heterogeneous datedbase united system.
Keywords:locking algorithm  mutually-exclusive operation  concurrent control
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