Revision history for Perl extension File::NFSLock. 1.20 May 13 12:00 2003 - Avoid double reverting signal handlers when unlock() is explicitly called instead of implicitly called from DESTROY(). - Fixed this warning: Argument "DEFAULT" isn't numeric in numeric eq (==) 1.19 Dec 17 23:30 2002 - Minor code cleanup patch by Stephen Waters. 1.18 Jul 25 17:00 2002 - Add newpid() method to handle fork() conditions. 1.17 Jun 10 12:00 2002 - Handle system crash recovery better or other abnormal/abrupt termination (like SIGKILL) conditions more gracefully. 1.16 Jun 05 15:00 2002 - Allow exclusive lock to be obtained on the same file multiple times by the the same process. 1.15 Jun 04 09:00 2002 - Default to catch certain signals to avoid creating stale locks on graceful termination. - More tests to test signal handlers. - Fix test t/300_bl_sh.t to measure only what is required. 1.14 Jun 03 12:00 2002 - Add test to exploit unlock bug (fixed by Andy in 1.13) - Less anal tests for slower platforms (Slowaris) to succeed as well. 1.13 May 30 12:00 2002 - Add spec file for RPM packaging. - Show example in perldoc using numerical constants. - Make perldoc example strict clean. - Add INSTALL section to perldoc. - Fixed bug that forced a lock aquired by another process to be released when an exclusive lock attempt fails. Patch by firstname.lastname@example.org (Andy Hird) 1.12 Nov 05 12:00 2001 - Change code to utilize numerical constants instead of the magic strings. - Change several sub routines into methods of the object to reduce arguments passed. - Avoid double unlocking (DESTROY). - Added some nice tests. - Pulled out stale_lock code to check once at initial lock attempt instead of repeated checks during the blocking lock loop. This may change functionality slightly in that a lock will never "become" stale if it wasn't already stale when the lock attempt initiated. - Shared lock feature now functional. 1.11 Oct 30 12:00 2001 - (Not released) - Initial attempt to add shared lock feature. 1.10 Jul 31 10:10 2001 - Allow for numerical constants from Fcntl. - Return Error status in $errstr. - Allow for custom lock extensions via $LOCK_EXTENSION. - Allow for passing parameters as a hashref - Allow for stale_lock_timeout parameter 1.00 May 24 10:50 2001 - Initial release of File::NFSLock. - Release under 1.00 tag as this is already in use. - Blocking and Nonblocking locking is possible. - uncache routine is available.