Revision history for Perl extension IPC::Shareable.

0.01 Wed Jul 30 09:00:53 1997

• original version; created by h2xs 1.18.

0.05 Wed Jul 30 15:02:31 EDT 1997

• scalars can now be tied; Ben Sugars.

0.10 Fri Aug 1 13:32:52 EDT 1997

• can now tie both scalars and hashes of arbitrary length; Ben Sugars.

0.11 Wed Aug 6 10:14:49 EDT 1997

• initial implementation of semaphores for versioning and caching; Ben Sugars.

0.12 Thu Aug 7 14:47:42 EDT 1997

• various bug fixes; Ben Sugars.

0.15 Fri Aug 8 15:45:29 EDT 1997

• implemented locking using semaphores; Ben Sugars.

0.16 Mon Aug 11 16:10:54 EDT 1997

• new shared memory segments now initialized with null values; Ben Sugars.

0.17 Wed Aug 27 15:57:11 EDT 1997

• fixed some bugs in &parse_argument_hash; Ben Sugars.

0.18 Thu Aug 28 09:12:30 EDT 1997

• fixed garbage collection bug; Ben Sugars. Thanks to Michael Stevens <michael@imaginet.co.uk> for the patch.

0.20 Thu Aug 28 15:13:46 EDT 1997

• added ability to magically create ties to implicitly referenced thingys; Ben Sugars.

0.25 Tue Oct 7 14:41:49 EDT 1997

• added more checking of sem() and shm() return values; Michael Stevens and Ben Sugars.
• added shlock and shunlock; Ben Sugars.
• fixed bug that would cause modifications of magically referenced thingys to fail. Thanks to Maurice Aubrey

0.26 Mon Oct 20 10:06:43 EDT 1997

• fixed bug regarding assigning a reference to an empty hash to a tied variable. Thanks to Jason Stevens.

0.28 Wed Oct 22 14:59:08 EDT 1997

• cleaned up the way thingys are magically tied; Ben Sugars.
• moved many subroutines so that they are auto-loaded; Ben Sugars.
• updated man page; Ben Sugars.

0.29 Mon Jan 12 13:49:42 EST 1998

• $MAXVER patch for when the version semaphore reaches its limit and rolls back over to 0; Maurice Aubrey <maurice@hevanet.com>.
• patch to quieten things down under -w; Doug MacEachern <dougm@telebusiness.co.nz>

0.30 Mon Jan 19 11:13:41 EST 1998

• Added SEM_UNDO to semop() calls; Maurice Aubrey.
• Fixed some bugs in the locking code; Maurice Aubrey.
• Made calls to debug() conditional for efficency; Maurice Aubrey.
• Fixed a signal handler in test.pl; Maurice Aubrey.

0.50 Tue Mar 21 11:56:32 EST 2000

• Complete rewrite incorporating the following changes.
• Requires 5.00503. This allowed the module to get rid of the global cache for shared memory segments; each Shareable object now carries around its own data.
• 5.00503 also allowed tied arrays to be implemented
• Shared memory segments can no longer be of infinite length thereby reducing the amount of code in the module by a factor of 2.
• Uses IPC::Shareable::SharedMem class for accessing shared memory.
• Uses IPC::Semaphore module for accessing semaphores.
• Completely revisited the way references are dealed with: all referenced thingies are now automagically tied to shared memory.
• Constants now imported from IPC::SysV; Shareable.xs is gone
• Rewrote test suite and moved into t subdirectory
• Updated man page

0.51 Fri May 5 23:47:06 EDT 2000

• Fixed bug that would cause IPC::Shareable::BUF_SIZ to be ignored; thanks to Robert Emmery <roberte@netscape.com> and Mohammed J. Kabir <kabir@intevo.com> for reporting.
• Stopped tests from leaking shm segments
• Added test of argument parsing
• doc fixes

0.52 Thu Sep 14 12:30:17 EDT 2000

• Now STORE, PUSH, POP, etc all call _thaw() before doing their business.
• Refined SIGALRM handlers in test scripts
• Fixed concurrency issues affecting tied arrays and hashes; thanks to thanks to Robert Emmery <roberte@netscape.com>, Terry Ewing <terry@intevo.com>, Tim Fries <timf@dicecorp.com>, and Joe Thomas <jthomas@women.com>.
• Doc fixes thanks to Paul Makepeace <Paul.Makepeace@realprogrammers.com>

0.53 Tue Nov 14 00:33:35 EST 2000

• Fixed race condition in test suite causing intermitent failures.
• Better checking for success of calls to Storable::thaw(); thanks to Raphael Manfredi <Raphael_Manfredi@pobox.com>.

0.54 Mon Jan 8 11:52:28 EST 2001

• Fix to allow IPC::Shareable to work with 1.0.* versions of Storable

0.60 Mon Mar 5 15:20:18 EST 2001

• Lee Lindley (lee.lindley@bigfoot.com) added the waschanged optimization, improved the locking functionality, fixed numerous bugs, and generally cleaned things up; thanks.
• Removed support for "no" as a false value in arguments; thanks to Dave Rolsky <autarch@urth.org>