[ViewVC] Diff of: cvs/Coro/Changes

Comparing Coro/Changes (file contents):
Revision 1.523 by root, Wed Aug 26 07:42:49 2009 UTC vs.
Revision 1.598 by root, Mon Oct 8 23:16:15 2012 UTC

1	Revision history for Perl extension Coro.	1	Revision history for Perl extension Coro.
2		2
3	TODO: should explore PerlIO::coroaio (perl leaks like hell).	3	TODO: should explore PerlIO::coroaio (perl leaks like hell).
4	TODO: maybe implement a default message channel, very much like Erlang's
5	actor model (which is cool in a lot of important aspects (failures!),
6	but very lacking in others (higher level ipc)).
7	TODO: unready_all
8	TODO: myhttpd header parsing
9	TODO: channel->maxsize(newsize)?	4	TODO: channel->maxsize(newsize)?
		5	TODO: http://www.microsoft.com/msj/archive/s2ce.aspx
		6	TODO: __GCC_HAVE_DWARF2_CFI_ASM
10		7
		8	6.10 Tue Oct 9 01:14:27 CEST 2012
		9	- updated ecb.h, it had a typo that caused it to not compile on many
		10	big endian systems (reported by many people).
		11	- disable memory fences in ecb.h to improve portability.
		12
		13	6.09 Sat Oct 6 23:25:02 CEST 2012
		14	- Coro::EV I/O watchers were not interruptible by exceptions
		15	(Coro::State::throw) (testcase by sten).
		16	- ->throw now puts threads into the ready queue, as this seems to
		17	be expected by existing code, and code that doesn't cope with spurious
		18	wakeups needs fixing anyway.
		19	- use fd -1 in mmap.
		20	- cast I32 to int in error message printf.
		21	- warn about broken so-called "hardened" kernels.
		22
		23	6.08 Fri Apr 13 12:05:47 CEST 2012
		24	- be more aggressive about exiting like perl does - formerly,
		25	exiting from the non-main thread would not execute END blocks.
		26
		27	6.07 Fri Nov 11 21:21:48 CET 2011
		28	- work around a bug in PerlIO (setting $SIG{__WARN__} to a PVCV).
		29	- update ecb.h.
		30
		31	6.06 Mon Aug 8 23:59:48 CEST 2011
		32	- cygwin unfortunately patches the stack at runtime, so we use the pthreads
		33	backend, which is an order of magnitude slower. unfortunately, cygwins
		34	pthread implementation isn't very complete either, so allocate the stack
		35	twice just to be sure.
		36	(note: cygwin also enables mymalloc, which is NOT THREADSAFE ON WINDOWS,
		37	in its ithreaded perl - best recompile cygwin and use the 'w'indows
		38	backend for much better performance. also disable ithreads for
		39	even better performance...).
		40
		41	6.05 Thu Aug 4 21:36:36 CEST 2011
		42	- blush, condvar values would not be propagated from send to recv anymore
		43	(reported by Chip Salzenberg).
		44	- use exponential increase for the readline buffer length in
		45	Coro::Handle. also reduce initial allocation to 1020 from 4096 bytes.
		46
		47	6.04 Wed Aug 3 17:15:45 CEST 2011
		48	- use even more efficient and more compatible condvars for
		49	compatibility to AnyEvent 6.x :)
		50	- more inconsequential ecb.h updates.
		51
		52	6.03 Wed Aug 3 11:41:30 CEST 2011
		53	- change how Coro patches AnyEvent condvars for compatibility to
		54	AnyEvent 6.x.
		55	- update ecb.h, to no longer include <pthread.h> in case WinNT.h
		56	hasn't been included.
		57
		58	6.02 Wed Jul 13 04:35:19 CEST 2011
		59	- "improve portability to Gentoo" - gentoo manages to put perl variables
		60	in memory areas that are farther than 2gb apart, which the jit couldn't
		61	handle and barfed. now it's just a bit slower on gentoo and similar
		62	systems.
		63
		64	6.01 Sun Jul 3 12:31:14 CEST 2011
		65	- workarounds are good, but the test for whether pthreads are used
		66	was not good. thisone should be better.
		67	- check differently whether gcc generates cfi instructions itself.
		68
		69	6.0 Wed Jun 29 19:43:35 CEST 2011
		70	- INCOMPATIBLE CHANGE: unreferenced coro objects will now be
		71	destroyed and cleaned up automatically (e.g. async { schedule }).
		72	- implement a JIT compiler for part of the thread switch code,
		73	which gives a 50% speed improvement on threaded perls, and
		74	about 4% on non-thraeded perls (so threaded perls now finally
		75	reach about half the speed of non-threaded perls).
		76	- slightly modernise Coro::Intro, add section about rouse functions.
		77	- avoid DEFSV and ERRSV, giving another 10% improvement
		78	in thread switching.
		79	- Coro::State->is_destroyed is now called is_zombie.
		80	- implement a Coro->safe_cancel method that might fail, but
		81	cancels in a "safer" way if it succeeds.
		82	- add preliminary support for DEBUGGING perls.
		83	- get rid of two hash-accesses when initialising a new Coro - this
		84	speeds up coro creation by almost a factor of two.
		85	- croak when a coro that is being cancelled tries to block
		86	(e.g. while executing a guard block), instead of crashing or
		87	deadlocking.
		88	- use a more robust and also faster method to identify Coro::State
		89	objects - speeds up everything a bit.
		90	- implement Coro->cancel in XS for a 20% speed improvement, and to
		91	be able to implement mutual cancellation.
		92	- speed up context switches by a percent or two by more efficiently
		93	allocating context stack entries.
		94	- implement Coro->join and Coro->on_destroy in XS for a speedup and
		95	a reduction in memory use.
		96	- cancelling a coro while it itself is cancelling another coro is
		97	now supported and working, instead of triggering an assertion.
		98	- be a bit more crash-resistant when calling (buggy) on_destroy
		99	callbacks (best effort).
		100	- move on_destroy into the slf_frame, to allow extension slf
		101	functions to have destructors.
		102	- get rid if coro refcounting - simply crash in other interpreter
		103	threads by nulling the pointers on clone.
		104	- simplify warn/die hook handling when loading Coro - the convoluted
		105	logic seems to be no longer neccessary.
		106	- use libecb instead of our own home-grown gcc hacks.
		107	- document alternatives to Coro::LWP. Please use them :)
		108	- work around another mindless idiotic NEEDLESS bug in openbsd/mirbsds
		109	sigaltstack. Really. wine suffers from it, erlang suffers from it,
		110	and it's known since at least 2006.
		111
		112	5.372 Wed Feb 23 06:14:30 CET 2011
		113	- apparently mingw doesn't provide a working gettimeofday, try to
		114	work around that by relying on Time::HiRes (indirectly brought to
		115	my attention by Max Maischein).
		116	- fix some portability issues when Time::HiRes was used.
		117
		118	5.371 Mon Feb 21 14:36:08 CET 2011
		119	- backport to windows process emulation code again.
		120
		121	5.37 Sat Feb 19 07:49:44 CET 2011
		122	- add a big "Coro thread life cycle" section to "man Coro".
		123	- try a tentative workaround against the breakage that 5.13 has
		124	introduced without depreciation period. sigh.
		125	- no longer use Time::HiRes if gettimeofday is available, which
		126	saves quite a lot of memory.
		127
		128	5.36 Sun Feb 13 05:33:41 CET 2011
		129	- automatically load Coro::Channel, Coro::RWLock, Coro::Semaphore,
		130	Coro::SemaphoreSet, Coro::Signal and Coro::Specific on first "new"
		131	method call.
		132	- undocument Coro::Timer::sleep and obsolete whole module.
		133	- optimise Coro::Timer::timeout memory and cpu usage.
		134	- slightly updated Coro::Intro for recent changes.
		135	- do not initialise PL_dirty anymore.
		136
		137	5.25 Thu Nov 11 01:08:39 CET 2010
		138	- try a different approach on netbsd - netbsd 5 finally has marginally
		139	working pthreads, but still broken ucontext/sigaltstack.
		140	- openbsd 4.8 finally got their act together, Coro works out of the box
		141	with asm, setjmp and pthreads (no change, just informational).
		142
		143	5.24 Sat Oct 23 11:27:12 CEST 2010
		144	- port to the EV 4.0 API.
		145	- work around bugs in mingw32, making strawberry perl work
		146	out of the box.
		147	- correctly modify Coro::AIO function prototypes
		148	so that they reflect the "no optional parameters" rule.
		149	- "ported" libcoro to C++.
		150
		151	5.23 Mon May 17 18:50:42 CEST 2010
		152	- be more resistant to ordering changes when initialising
		153	Coro::AnyEvent, Coro::EV and Coro::Event (reported by Matthias
		154	Waldorf).
		155	- document that perl 5.12 deliberately removed support for cloning.
		156
		157	5.22 Wed Apr 14 03:55:35 CEST 2010
		158	- correctly return udnef on errors in Coro::Handle::read/write
		159	(testcase by Marc Mims).
		160	- convert Coro::Util into a "perl compatibility wrapper" - the functions
		161	are less useful now, but are drop-in replacements for existing
		162	functions, listing better alternatives in the documentation. This also
		163	fixes a bug in Coro::LWP which naively substituted Socket::inet_aton
		164	with Coro::Util::inet_aton.
		165	- do not override $Coro::idle unconditionally in Coro.pm, as other
		166	modules could have provided their own idle coro already
		167	(for exmaple, Coro::AnyEvent).
		168	- fix Coro::Util::gethost* functions.
		169	- Coro::Timer corretcly exports it's symbols (reported by Hideki Yamamura).
		170
		171	5.21 Wed Dec 16 07:19:51 CET 2009
		172	- automatically load Coro::AnyEvent when AnyEvent and Coro are used
		173	together.
		174	- add some examples on how to combine other event loops with Coro in
		175	Coro::AnyEvent, and how to run it (and not to block). Seems to be
		176	the most common source of confusion.
		177	- try to catch people naively blocking in an event callback.
		178	- work around the perl filehandle bug issue in conjunction with
		179	older common::sense (as indirectly pointed out by ZSystem).
		180	- clarify the "not from signal handlers" section.
		181
		182	5.2 Sun Oct 4 14:54:24 CEST 2009
		183	- Coro::Storable destroyed the prototypes of the functions it wrapped.
		184	- export rouse_cb and rouse_wait by default now.
		185	- fix various prototype mismatches in Coro::AnyEvent and Coro::Handle.
		186	- new method $state->swap_sv.
11	- added section on "windows process emulation" to the manpage,	187	- added section on "windows process emulation" to the manpage,
12	after a not-so-fruitful (nor-friendly) "discussion" with chip	188	after a not-so-fruitful (nor-friendly) "discussion" with chip
13	salzenberg (discussion implies arguments, but his only arguments	189	salzenberg (discussion implies arguments, but his only arguments
14	were ad-hominems, one wonders why he started it in the first	190	were ad-hominems, one wonders why he started it in the first
15	place). I hope this explains it well enough for him to understand,	191	place). I hope this explains it well enough for him to understand,
16	and maybe well enough for others to understand.	192	and maybe well enough for others to understand.
		193	- use common::sense everywhere now.
		194	- idle callbacks are no longer supported, use idle coros instead.
		195	- print a thread listing when a deadlock is detected.
17		196
18	5.17 Sat Aug 22 23:09:31 CEST 2009	197	5.17 Sat Aug 22 23:09:31 CEST 2009
19	- work around a bug in the perl debugger causing crashes	198	- work around a bug in the perl debugger causing crashes
20	when running under the debugger by marking _pool_handler as nodebug.	199	when running under the debugger by marking _pool_handler as nodebug.
21	- speed up Coro::async considerably.	200	- speed up Coro::async considerably.

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Comparing Coro/Changes (file contents): Revision 1.523 by root, Wed Aug 26 07:42:49 2009 UTC vs. Revision 1.598 by root, Mon Oct 8 23:16:15 2012 UTC

Diff Legend

Comparing Coro/Changes (file contents):
Revision 1.523 by root, Wed Aug 26 07:42:49 2009 UTC vs.
Revision 1.598 by root, Mon Oct 8 23:16:15 2012 UTC