ipcmd: a command-line interface to System V semaphores and message queues

摘要

Concurrent programming has become a common means to harness the potential performance of multi-corernprocessors. System V (SysV) message queues and semaphores have been used since the mid 1970s tornimplement inter-process concurrency, but they are difficult to use, and bindings exist for few programmingrnlanguages. This paper introduces ipcmd, a high-level command-line interface to SysV message queuesrnand semaphores. ipcmd provides an easy-to-use interface for synchronizing concurrent processes to allowrnapplication developers to efficiently prototype, debug, and test the use of SysV semaphores and messagernqueues in applications. Easy-to-understand applications of semaphores are illustrated using simple shellrnscripts.