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Loopess is a small signal and select loop library for applications running on POSIX operating systems. It provides a convenient abstraction of signals, file descriptor events, and timeouts for single-threaded applications using a simple C++ class structure. Loopess properly handles the race condition introduced by mixing signals with the select system call. It uses sigsetjmp and siglongjmp to jump out of signals that occur just prior to entering the select call. Otherwise, these signals would not be processed until the next file descriptor event. Jumping out of these signals safely prevents entering into the blocking select system call. As of Feb 29, 2004, development on this project has been discontinued as per the maintainer.


User guide available in HTML format from


Download version 2.0 (stable)
released on 5 August 2002



LicenseVerified byVerified onNotes
GPLv2orlaterJanet Casey5 August 2002

Leaders and contributors

Adrian Thurston Maintainer

Resources and communication

Audience Resource type URI
Bug Tracking,Developer,Support E-mail

Software prerequisites

This entry (in part or in whole) was last reviewed on 7 April 2004.


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