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| Content Provider | ACM Digital Library |
|---|---|
| Author | Reed, David P. Kanodia, Rajendra K. |
| Abstract | Synchronization of concurrent processes requires controlling the relative ordering of events in the processes. A new synchronization mechanism is proposed, using abstract objects called eventcounts and sequencers, that allows processes to control the ordering of events directly, rather than using mutual exclusion to protect manipulations of shared variables that control ordering of events. Direct control of ordering seems to simplify correctness arguments and also simplifies implementation in distributed systems. The mechanism is defined formally, and then several examples of its use are given. The relationship of the mechanism to protection mechanisms in the system is explained; in particular, eventcounts are shown to be applicable to situations where confinement of information matters. An implementation of eventcounts and sequencers in a system with shared memory is described. |
| Starting Page | 115 |
| Ending Page | 123 |
| Page Count | 9 |
| File Format | |
| ISSN | 00010782 15577317 |
| DOI | 10.1145/359060.359076 |
| Journal | Communications of the ACM (CACM) |
| Volume Number | 22 |
| Issue Number | 2 |
| Language | English |
| Publisher | Association for Computing Machinery (ACM) |
| Publisher Date | 2005-08-01 |
| Publisher Place | New York |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Security models Distributed systems Process synchronization Semaphores Mutual exclusion Interprocess communication |
| Content Type | Text |
| Resource Type | Article |
| Subject | Computer Science Computer Science |
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