[ViewVC] Annotation of: cvs/Coro/Changes

Revision history for Perl extension Coro.

TODO: better (earlier) error messages on broken transfer's

        - implement $coro->on_destroy.
        - Coro::Event blocking semantics have been changed,
          documented and - hopefully - improved.
        - fix nice adding, not subtracting, from priority.
        - fix ->prio and api_is_ready (patch by Mark Hinds).

3.2  Fri Dec 22 05:07:09 CET 2006
        - improve portability to slightly older perls.
        - use cleaner coroutine destruction.
        - simplify configuration for users.
        - optionally (unrecommended) prefer perl functions over
          their coro replacements.

3.11 Tue Dec  5 13:11:24 CET 2006
        - fixed some bogus assert's, but as perl.h disables assert even
          without NDEBUG (thank you very much), not too many people should
          notice (that did include myself). Andreas König noticed, though :)
        - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
          it. Also noticed by Andreas König :)
        - save/restore tainted status.
        - verified to pass the testsuite on my 5.9.5.

3.1  Mon Dec  4 23:03:40 CET 2006
        - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
        - incompatible change: transfer flags are now per-state.
        - give a better error message on deadlock.
        - document Coro::nready.
        - enhanced testsuite.

3.01 Sun Dec  3 23:47:42 CET 2006
        - forgot to include Coro::Timer.

3.0  Sun Dec  3 22:57:25 CET 2006
        - the "FINALLY COMPLETELY STABLE" release (coming soon:
          the "FAMOUS LAST WORDS" release).
        - implement a new stack sharing algorithm, which uses a stack
          pool (size currently hardcoded).
        - make stack sharing mandatory (it no longer uses a heuristic).
        - eval/die no longer cause weird problems under heavy use.
        - Coro::Event could cause livelocks if it was used but
          no Coro::Event watchers were used.
        - Coro::Event now uses asynccheck as prepare does not
          check for changed watchers.
        - Coro::Event allows multiple waiting coros and will wake up one
          per event.
        - Coro::Event should be cleaner and more efficient now.
        - new utility function Coro::unblock_sub.
        - document the sad fact that Event is no longer reentrant.
        - putting a coroutine into the ready queue twice could under
          some circumstances lead to stack corruption.
        - minor incompatibility: subclassing Coro::State is supported
          directly now without going through a _coro_state member.
        - state/coro switching is much faster now.
        - very minor optimisations and code/documentation cleanup.
        - avoid problems due to compiler inlining.
        - removed timers from Coro::Timer -> use AnyEvent instead.
        - replaced Coro::idle coroutine by (cleaner) idle handler.
        - updated to newest libcoro.
        - implement enhanced support for valgrind.
        - implement is_ready and return value for ready.
        - removed Coro::Cont, it was a misnomer (it's generators),
          and it was somewhat annoying to get it right. Will come back
          if somebody asks for it :)
        - many ->wait methods and Coro::Event could return
          spuriously without the event having happened.

2.5  Tue Nov  7 12:22:33 CET 2006
        - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
          use AnyEvent, moved them to Coro/.
        - added Coro::LWP which contains all the uglyness required to
          make LWP non-blocking.
        - should work with perl 5.9.x now (Andreas König made me do it).
        - fixed another bug in Coro::Select when the timeout was undef.
        - reuse PL_start_env for all coros, saves some memory per coroutine.
        - manage PL_top_env differently, hopefully to avoid panic: top_env.
        - timeout argument was not properly used in Coro::Socket.
        - allow limited forms of subclassing in Coro::Handle/Coro::Socket.
        - emulate undocumented(!) functionality of IO::Socket required
          by LWP(!!).
        - updated eg/lwp to work with newer lwp's.
        - remove "FATAL: uncaught exception" prefix. Coroutines that die
          kill the whole process, just as exceptions in the main "coroutine"
          did already.

2.1  Wed Nov  1 23:01:13 CET 2006
        - fix a long-standing bug in Coro::Select where select with
          zero timeout would instead change the current default filehandle.
        - use a simpler and hopefully more robust way to clone padlists
          (uses less memory and a perl function instead of our own).
        - coro can now create a stack guard area on many architectures.
        - Coro::AIO properly reexports additional functions from IO::AIO.
        - updated libcoro with a workaround for OS X,
          pach and testing by Michael Schwern.

2.0  Tue Oct 24 05:47:17 CEST 2006
        - support additional aio requests in Coro::AIO.

1.9  (never properly released due to a glitch)

1.8  Thu Feb  2 00:59:06 CET 2006
        - applied suggested patch by SAMV to avoid problems during stupid
          mark & sweep gc run.
        - applied patch by Scott Walters for 5.9.3 compatibility.

1.7  Tue Dec 27 01:41:58 CET 2005
        - added Coro::AIO, a thin wrapper around IO::AIO.
        - improved Makefile.PL explanations.

1.6  Mon Dec 12 21:30:05 CET 2005
        - additionally save PM_curpm might fix as-of-yet
          unseen problems with regex matches being attributed to the
          wrong package.
        - add t/10_bugs.t, which currently checks against imho broken
          perls that use 0.26MB of stack space per Perl_magic_get
          invocation (newer linuxes) as opposed to the 0.0002MB perl
          normally uses.
        - make stacksize configurable for the ultimate debian experience.

1.51 Mon Dec 12 18:48:36 CET 2005
        - remove debugging warn() accidentally left in Coro::Select.

1.5  Tue Nov 29 13:32:44 CET 2005
        - use Coro::Event inside Coro::Select to avoid spurious deadlocks.
        - fix Coro::Select 'select'.
        - strict'ify some modules.
        - libcoro errornously restored the SIGUSR2 handler to SIGUSR1.
        - use XSLoader in selected modules.
        - remove some 5.6 compatibility cruft.

1.4  Tue Sep  6 00:11:05 CEST 2005
        - libcoro did not take into account the trampoline on amd64,
          when 'l'inux method was used.

1.31 Tue Aug 30 23:31:33 CEST 2005
        - some portability fixes/workarounds.

1.3  Sat Aug 20 03:08:56 CEST 2005
        - no code changes. module seems to work fine.
        - improve Coro::State docs, remove reference to nonexisting
          Coro::State::flush method.
        - no longer autodetect windows, present it as an option instead.

1.2  Mon May 16 02:00:55 CEST 2005
        - included libcoro.c earlier in State.xs, might improve portability.
        - use a faster and possibly more stable Coro::Cont implementation.
        - accept x86_64 in addition to amd64 for optimized linux-amd64 support.
        - fix bugs Coro::SemaphoreSet that could cause locks never to be freed.
        - fix bugs in CoroAPI.h and document it in Coro::MakeMaker.

1.11 Thu Mar  3 18:00:52 CET 2005
        - change of contact address.

1.1 Tue Feb 22 20:51:16 CET 2005
        - support [l]inux method on amd64.
        - allow some context switches while compiling/eval'ing.

1.0  Tue Aug 10 03:47:27 CEST 2004
        - Event 0.89 fixes the bug again.
        - fix the remaining(??) memleak. I didn't free the cache-AV for
          padlists, so one AV per created anon-sub leaked.

0.97 Fri May 14 15:23:32 CEST 2004
        - remove stupid gcc extension that was an experiment only anyway.

0.96 Thu May 13 18:09:29 CEST 2004
        - tell people if they have yet another broken Event variant.
        - made Coro to work _better_ with threads (it seems that, as long
          as you use Coros in one thread only everything will work fine.
          Looking at the perl source the problem might be missing locking
          between Coro and some perl internal routines. That's not easily
          fixable).
        - (hopefully) got rid of the static xnext inside transfer.

0.95 Sun Feb 15 03:20:28 CET 2004
        - removed Coro::State::flush, implemented a new and much
          faster caching mechanism by attaching magic to the CV.
        - a memleak with (real) closures remains.
        - dramatically reduced size of stacks to 65536 (linux/x86), after
          observing that even myhttpd never had more than a kilobyte
          of stack in use (stack is still only physically allocated in
          pagesize increments for systems suporting mmap).
        - fix for a "cygwin-64" architecture added, proposed by Stefan Traby.
        - fix for threaded perl.

0.9  Sun Nov 23 04:32:39 CET 2003
        - fix a few very hard to track down but (of course) stupid
          memory leaks.
        - stringify version number to avoid locale problems :(.
        - perl 5.9.0 does not have SvPADBUSY, reported by Scott Walters,
          hopefully ignoring it "just works".

0.8   Wed Nov  5 19:38:40 CET 2003
        - port to perl5.005_03, but only 5.8.x+ is supported!
        - honor LocalAddr even without LocalPort in Coro::Socket.

0.7   Tue May 27 03:12:38 CEST 2003
        - the version jump indicates some level of testing, not gobs
          of new features.
        - uh... I found the prompt function in ExtUtils::MakeMaker.
          Highly correct stuff, that is...
        - fixed(?) a bug with die's in coroutines causing "panic: top_env".
          the fix is not well understood by the author, so beware :(.

0.652 Thu May  8 02:54:46 CEST 2003
        - Applied patch by Slaven Rezic to set default to "s" on FreeBSD,
          cause version 4 doesn't have ucontext.
        - Benjamin Reed reported that setjmp works fine on darwin,
          so preselect it.

0.651 Sat Mar 29 15:00:23 CET 2003
        - fix a bug in Coro::Handle where some bytes could get lost
          on reading, reported by jason@nichego.net.

0.65  Sun Mar 23 00:08:26 CET 2003
        - added a README.linux-glibc.
        - new module Coro::Select.
        - also save/restore PL_comppad, fixes segfaults with 5.8.1.
          (I never claimed that I know what I am doing ;).
        - set default to setjmp/longjmp on non-x86-linux.

0.6   Thu Nov 21 11:09:06 CET 2002
        - made lazy context switching the default.
        - fixed the bug where SemaphoreSet::guard
          was the same as timed_guard and timed_guard was missing.
        - fix a memleak in Coro::Timer.
        - reclassified context sharing as not experimental.

0.534 Sun Apr 14 03:05:12 CEST 2002
        - fixed backspace => tab in header parsing (myhttpd).
        - added eg/readline, for elmex.
        - Coro::Event now calls ->start on first call instead of
          ->again, which created wrong timeouts for the first ->next.
        - fixed a bug where Coro::Socket returned a closed socket instead
          of nothing on ECONNREFUSED and similar error conditions.

0.533 Mon Feb 18 18:49:40 CET 2002
        - adapt to finally working Event-0.85.
        - fixed buggy event initialization (trapped under windows, but how
          could it possibly have worked anywhere?)

0.532 Wed Jan 16 02:45:32 CET 2002
        - removed the reference to pp_entersub, might work on
          (some) win32 perls now (testsuite works under cygwin,
          without Event, which freezes).

0.531 Mon Dec 10 22:18:44 CET 2001
        - Fixed a bug in SemaphoreSet::timed_down.

0.53  Tue Nov 27 21:11:13 CET 2001
        - some tests for Event.
        - slightly different internal architecture to get refcnt into the object
          and not the reference. might fix a few bugs, certainly did introduce
          new ones.
        - Coro::Timer (independent of Event).
        - new timed_wait functions for Coro::Signal, Semaphore, SemaphoreSet.

0.52  Tue Nov  6 21:36:18 CET 2001
        - ported to cygwin (trivial).
          patch by Gerrit P. Haase <gp@familiehaase.de>.
        - small setjmp code fix by Sullivan.DanielJ@epamail.epa.gov.

0.51  Thu Nov  1 20:39:01 CET 2001
        - terminate/cancel now work properly (otherwise termination
          could cause a "next coroutine is not and contains not..."
          error.
        - added Coro::Socket::shutdown.
        - Coro::Event::loop no is the same as Event::loop.
        - implemented terminate with args + join.

0.5   Fri Sep 28 16:15:35 CEST 2001
        - fixed "print" on a Coro::Handle. The print method worked.
        - small tweaks (seem to reduce memory consumption a lot)
          in various modules.
        - splendid use of "no warnings" scattered throughout.
        - added Coro::Handle::rbuf, fixed Coro::Handle::fh.

0.49  Sun Sep 16 02:42:45 CEST 2001
        - changed some method calls to function calls for speed
          inside Coro::Handle.
        - make Coro::Handle use an array instead of a hash for
          speed reasons.
        - IRIX mystery solved: it's SGI's NT, after all: "standard, huh?".
          sjlj and ucontext should now work.
        - IRIX-specific port for libcoro.
        - swapped order of accept results to match IO::Socket.
        - changed getsock/peername to sock/peername to match IO::Socket.
        - fixed a bug that caused segfault when returning to main task
          under some circumstances.
        - other bugfixes.

0.45  Sun Sep  2 02:54:01 CEST 2001
        - new method Coro::Handle::timeout.
        - corrected speling of set...name to get...name in Coro::Socket.
        - Coro::Socket::accept now returns a Coro::Socket, not a Coro::Handle.
        - Coro::Handle now supports fileno and FILENO.
        - added eg/myhttpd, a web server.
        - Coro::Socket now accepts numeric ports as well as "port(number)"
          syntax.
        - moved some scheduling primitives into xs code. more to come.
        - new simple priority system.
        - implemented Coro::Event using XS, almost four times faster!
        - small memory corruption problem fixed (boy that was difficult).

0.13  Wed Aug  8 16:53:07 CEST 2001
        - new method Coro::Handle::readline.
        - added eg/lwp and Coro::Handle::autoflush, to make LWP work.
          (see eg/lwp on how to make LWP non-blocking).
        - renamed Coro::Socket::new_inet to new.
        - added Coro::Util, some utility functions.
        - die/eval now works better (still get annoying (but true ;)
          "Callback called exit" messages).
        - Coro::Handle now supports timeout, and Coro::Socket Timeout.
        - much better Coro::Socket support.

0.12  Fri Jul 27 04:19:01 CEST 2001
        - do not use mmap if neither MAP_ANON nor MAP_ANONYMOUS is defined.
        - very experimental stack sharing algorithm. not 100% safe but
          should work well in practise ;)
        - added Coro::RWLock.
        - Coro::Specific now works.

0.11  Tue Jul 24 22:49:21 CEST 2001
        - added specialized hack for newer and older linux versions (fast).
        - renamed Coro::Event::IO to Coro::Handle.
        - new module Coro::Socket.

0.1   Tue Jul 24 01:47:53 CEST 2001
        - release candidate 3. A rather new internal structure :(
        - the great renaming: Damian Conway gave me a suitable replacement
          for yield.
        - added Coro/libcoro, a portable coroutine implementation for C
          (not even perl-dependent!!!), which can be used by Coro::State.
        - renamed SAVE_DEFSV (on xs-level only) to avoid symbol clash in
          perl-5.6.
        - new function Coro::Event::idle.
        - the idle process is now overriden
          by default in Coro::Event.
        - Coro::Channel now enforces the size.
        - canceling events now works in all cases.
        - Coro state now include $_ and $@.
        - yet another bug workaround that I do not really understand :(
        - new module Coro::Event::IO (very undocumented) to do
          non-blocking i/o.
        - performance tuning.

0.08  Thu Jul 19 06:13:25 CEST 2001
        - release candidate 2 (new functionality).
        - add Coro::State::flush function.
        - transfer now supports a flags value (mostly for speed ATM).
        - might compile and work in the presence of threads now.
        - continuations have a saner syntax.
        - no more memleaks.

0.07  Tue Jul 17 17:40:18 CEST 2001
        - release candidate 1 ;)
        - slightly nicer code.
        - fixed a scheduling bug in Coro::Event.

0.06  Tue Jul 17 04:23:24 CEST 2001
        - ok, I found the showstopper - the same sub must not be
          re-entered in two different coroutines, otherwise => crash. I
          see no easy solution to this problem, except by walking the call
          chaing and saving/restoring the cv's, which is what I do now.
        - memory leaks still latent, especially at thread termination.
        - Coro::Event now works (haha).

0.05  Sun Jul 15 17:32:20 CEST 2001
        - fixed a few issues in Coro::Event.
        - I forgot to include Coro::Event in 0.04 :(:(:(

0.04  Sun Jul 15 05:24:59 CEST 2001
        - @_ is now properly localized.
        - Coro::State is now easier subclassable.
        - Coro::Cont now coroutine-aware.
        - Coro::Specific is a low-overhead module to create
          coroutine-specific vars.
        - Coro::Event provides a simple interface to Event.

0.03  Fri Jul 13 14:51:52 CEST 2001
        - transfer() now implemented in XS (beware).
        - new module Coro::Cont for really faked continuations.
        - big internal architecture changes: Coro::State is now
          really low-level and can thus be used to implement other
          interesting things, While "Coro::" implements a process-like
          model. Still crude and subject to change.
        - $_ and $@ are no longer being localized.

0.02  Tue Jul 10 01:38:17 CEST 2001
        - implemented "async" attribute.
        - $_ and $@ are now localized.
        - added Coro::Channel.
        - more testcases, still no docs.

0.01  Tue Jul  3 02:18:41 CEST 2001
        - original version; copied from Convert::Scalar.

Revision:	1.188
Committed:	Fri Dec 29 11:37:49 2006 UTC (17 years, 4 months ago) by root
Branch:	MAIN
Changes since 1.187:	+2 -2 lines
Log Message:	* empty log message *
#	User	Rev	Content
1	root	1.1	Revision history for Perl extension Coro.
2	root	1.113
3	root	1.173	TODO: better (earlier) error messages on broken transfer's
4
5	root	1.187	- implement $coro->on_destroy.
6	root	1.188	- Coro::Event blocking semantics have been changed,
7			documented and - hopefully - improved.
8	root	1.184	- fix nice adding, not subtracting, from priority.
9	root	1.185	- fix ->prio and api_is_ready (patch by Mark Hinds).
10	root	1.184
11	root	1.183	3.2 Fri Dec 22 05:07:09 CET 2006
12	root	1.179	- improve portability to slightly older perls.
13	root	1.180	- use cleaner coroutine destruction.
14	root	1.182	- simplify configuration for users.
15			- optionally (unrecommended) prefer perl functions over
16			their coro replacements.
17	root	1.179
18	root	1.178	3.11 Tue Dec 5 13:11:24 CET 2006
19			- fixed some bogus assert's, but as perl.h disables assert even
20			without NDEBUG (thank you very much), not too many people should
21			notice (that did include myself). Andreas König noticed, though :)
22			- do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
23			it. Also noticed by Andreas König :)
24			- save/restore tainted status.
25			- verified to pass the testsuite on my 5.9.5.
26
27	root	1.177	3.1 Mon Dec 4 23:03:40 CET 2006
28			- INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
29	root	1.175	- incompatible change: transfer flags are now per-state.
30	root	1.173	- give a better error message on deadlock.
31	root	1.175	- document Coro::nready.
32	root	1.174	- enhanced testsuite.
33	root	1.169
34	root	1.172	3.01 Sun Dec 3 23:47:42 CET 2006
35			- forgot to include Coro::Timer.
36
37	root	1.171	3.0 Sun Dec 3 22:57:25 CET 2006
38	root	1.163	- the "FINALLY COMPLETELY STABLE" release (coming soon:
39			the "FAMOUS LAST WORDS" release).
40	root	1.166	- implement a new stack sharing algorithm, which uses a stack
41			pool (size currently hardcoded).
42	root	1.155	- make stack sharing mandatory (it no longer uses a heuristic).
43	root	1.157	- eval/die no longer cause weird problems under heavy use.
44	root	1.152	- Coro::Event could cause livelocks if it was used but
45	root	1.161	no Coro::Event watchers were used.
46	root	1.167	- Coro::Event now uses asynccheck as prepare does not
47			check for changed watchers.
48	root	1.170	- Coro::Event allows multiple waiting coros and will wake up one
49			per event.
50	root	1.152	- Coro::Event should be cleaner and more efficient now.
51	root	1.165	- new utility function Coro::unblock_sub.
52	root	1.164	- document the sad fact that Event is no longer reentrant.
53	root	1.163	- putting a coroutine into the ready queue twice could under
54			some circumstances lead to stack corruption.
55	root	1.161	- minor incompatibility: subclassing Coro::State is supported
56			directly now without going through a _coro_state member.
57	root	1.156	- state/coro switching is much faster now.
58	root	1.154	- very minor optimisations and code/documentation cleanup.
59	root	1.153	- avoid problems due to compiler inlining.
60	root	1.154	- removed timers from Coro::Timer -> use AnyEvent instead.
61			- replaced Coro::idle coroutine by (cleaner) idle handler.
62	root	1.156	- updated to newest libcoro.
63	root	1.159	- implement enhanced support for valgrind.
64	root	1.162	- implement is_ready and return value for ready.
65	root	1.168	- removed Coro::Cont, it was a misnomer (it's generators),
66			and it was somewhat annoying to get it right. Will come back
67			if somebody asks for it :)
68	root	1.163	- many ->wait methods and Coro::Event could return
69			spuriously without the event having happened.
70	root	1.146
71	root	1.145	2.5 Tue Nov 7 12:22:33 CET 2006
72	root	1.143	- made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
73			use AnyEvent, moved them to Coro/.
74	root	1.140	- added Coro::LWP which contains all the uglyness required to
75			make LWP non-blocking.
76			- should work with perl 5.9.x now (Andreas König made me do it).
77	root	1.141	- fixed another bug in Coro::Select when the timeout was undef.
78	root	1.136	- reuse PL_start_env for all coros, saves some memory per coroutine.
79			- manage PL_top_env differently, hopefully to avoid panic: top_env.
80	root	1.137	- timeout argument was not properly used in Coro::Socket.
81			- allow limited forms of subclassing in Coro::Handle/Coro::Socket.
82	root	1.138	- emulate undocumented(!) functionality of IO::Socket required
83			by LWP(!!).
84			- updated eg/lwp to work with newer lwp's.
85	root	1.140	- remove "FATAL: uncaught exception" prefix. Coroutines that die
86			kill the whole process, just as exceptions in the main "coroutine"
87			did already.
88	root	1.135
89	root	1.134	2.1 Wed Nov 1 23:01:13 CET 2006
90			- fix a long-standing bug in Coro::Select where select with
91			zero timeout would instead change the current default filehandle.
92	root	1.132	- use a simpler and hopefully more robust way to clone padlists
93			(uses less memory and a perl function instead of our own).
94			- coro can now create a stack guard area on many architectures.
95	root	1.134	- Coro::AIO properly reexports additional functions from IO::AIO.
96	root	1.132	- updated libcoro with a workaround for OS X,
97	root	1.134	pach and testing by Michael Schwern.
98	root	1.130
99	root	1.129	2.0 Tue Oct 24 05:47:17 CEST 2006
100	root	1.128	- support additional aio requests in Coro::AIO.
101
102	root	1.129	1.9 (never properly released due to a glitch)
103
104	root	1.127	1.8 Thu Feb 2 00:59:06 CET 2006
105	root	1.125	- applied suggested patch by SAMV to avoid problems during stupid
106			mark & sweep gc run.
107	root	1.126	- applied patch by Scott Walters for 5.9.3 compatibility.
108	root	1.125
109	root	1.124	1.7 Tue Dec 27 01:41:58 CET 2005
110	root	1.123	- added Coro::AIO, a thin wrapper around IO::AIO.
111	root	1.122	- improved Makefile.PL explanations.
112
113	root	1.119	1.6 Mon Dec 12 21:30:05 CET 2005
114	root	1.117	- additionally save PM_curpm might fix as-of-yet
115	root	1.121	unseen problems with regex matches being attributed to the
116	root	1.117	wrong package.
117	root	1.118	- add t/10_bugs.t, which currently checks against imho broken
118			perls that use 0.26MB of stack space per Perl_magic_get
119	root	1.121	invocation (newer linuxes) as opposed to the 0.0002MB perl
120			normally uses.
121	root	1.120	- make stacksize configurable for the ultimate debian experience.
122	root	1.117
123	root	1.116	1.51 Mon Dec 12 18:48:36 CET 2005
124			- remove debugging warn() accidentally left in Coro::Select.
125
126	root	1.115	1.5 Tue Nov 29 13:32:44 CET 2005
127	root	1.114	- use Coro::Event inside Coro::Select to avoid spurious deadlocks.
128	root	1.115	- fix Coro::Select 'select'.
129			- strict'ify some modules.
130	root	1.112	- libcoro errornously restored the SIGUSR2 handler to SIGUSR1.
131	root	1.115	- use XSLoader in selected modules.
132			- remove some 5.6 compatibility cruft.
133	root	1.112
134	root	1.111	1.4 Tue Sep 6 00:11:05 CEST 2005
135			- libcoro did not take into account the trampoline on amd64,
136			when 'l'inux method was used.
137
138	root	1.110	1.31 Tue Aug 30 23:31:33 CEST 2005
139			- some portability fixes/workarounds.
140
141	root	1.107	1.3 Sat Aug 20 03:08:56 CEST 2005
142	root	1.108	- no code changes. module seems to work fine.
143	root	1.106	- improve Coro::State docs, remove reference to nonexisting
144			Coro::State::flush method.
145	root	1.107	- no longer autodetect windows, present it as an option instead.
146	root	1.106
147	root	1.105	1.2 Mon May 16 02:00:55 CEST 2005
148	root	1.100	- included libcoro.c earlier in State.xs, might improve portability.
149	root	1.101	- use a faster and possibly more stable Coro::Cont implementation.
150	root	1.102	- accept x86_64 in addition to amd64 for optimized linux-amd64 support.
151	root	1.104	- fix bugs Coro::SemaphoreSet that could cause locks never to be freed.
152	root	1.105	- fix bugs in CoroAPI.h and document it in Coro::MakeMaker.
153	root	1.100
154	root	1.99	1.11 Thu Mar 3 18:00:52 CET 2005
155			- change of contact address.
156
157	root	1.98	1.1 Tue Feb 22 20:51:16 CET 2005
158	root	1.97	- support [l]inux method on amd64.
159	root	1.109	- allow some context switches while compiling/eval'ing.
160	root	1.97
161	root	1.96	1.0 Tue Aug 10 03:47:27 CEST 2004
162	root	1.95	- Event 0.89 fixes the bug again.
163	root	1.96	- fix the remaining(??) memleak. I didn't free the cache-AV for
164			padlists, so one AV per created anon-sub leaked.
165	root	1.95
166	pcg	1.94	0.97 Fri May 14 15:23:32 CEST 2004
167			- remove stupid gcc extension that was an experiment only anyway.
168
169	pcg	1.93	0.96 Thu May 13 18:09:29 CEST 2004
170	root	1.103	- tell people if they have yet another broken Event variant.
171	pcg	1.91	- made Coro to work _better_ with threads (it seems that, as long
172			as you use Coros in one thread only everything will work fine.
173			Looking at the perl source the problem might be missing locking
174			between Coro and some perl internal routines. That's not easily
175			fixable).
176	pcg	1.92	- (hopefully) got rid of the static xnext inside transfer.
177	pcg	1.91
178	pcg	1.90	0.95 Sun Feb 15 03:20:28 CET 2004
179	pcg	1.86	- removed Coro::State::flush, implemented a new and much
180			faster caching mechanism by attaching magic to the CV.
181	pcg	1.87	- a memleak with (real) closures remains.
182	pcg	1.88	- dramatically reduced size of stacks to 65536 (linux/x86), after
183			observing that even myhttpd never had more than a kilobyte
184			of stack in use (stack is still only physically allocated in
185			pagesize increments for systems suporting mmap).
186	pcg	1.89	- fix for a "cygwin-64" architecture added, proposed by Stefan Traby.
187	pcg	1.90	- fix for threaded perl.
188	pcg	1.86
189	pcg	1.85	0.9 Sun Nov 23 04:32:39 CET 2003
190	pcg	1.84	- fix a few very hard to track down but (of course) stupid
191			memory leaks.
192			- stringify version number to avoid locale problems :(.
193	pcg	1.85	- perl 5.9.0 does not have SvPADBUSY, reported by Scott Walters,
194			hopefully ignoring it "just works".
195	pcg	1.84
196	pcg	1.83	0.8 Wed Nov 5 19:38:40 CET 2003
197			- port to perl5.005_03, but only 5.8.x+ is supported!
198	pcg	1.82	- honor LocalAddr even without LocalPort in Coro::Socket.
199
200	root	1.81	0.7 Tue May 27 03:12:38 CEST 2003
201			- the version jump indicates some level of testing, not gobs
202			of new features.
203	root	1.80	- uh... I found the prompt function in ExtUtils::MakeMaker.
204			Highly correct stuff, that is...
205	root	1.81	- fixed(?) a bug with die's in coroutines causing "panic: top_env".
206			the fix is not well understood by the author, so beware :(.
207	root	1.80
208	root	1.79	0.652 Thu May 8 02:54:46 CEST 2003
209	root	1.76	- Applied patch by Slaven Rezic to set default to "s" on FreeBSD,
210	root	1.78	cause version 4 doesn't have ucontext.
211	root	1.77	- Benjamin Reed reported that setjmp works fine on darwin,
212			so preselect it.
213	root	1.76
214	root	1.75	0.651 Sat Mar 29 15:00:23 CET 2003
215			- fix a bug in Coro::Handle where some bytes could get lost
216			on reading, reported by jason@nichego.net.
217	root	1.74
218	root	1.73	0.65 Sun Mar 23 00:08:26 CET 2003
219	root	1.72	- added a README.linux-glibc.
220			- new module Coro::Select.
221			- also save/restore PL_comppad, fixes segfaults with 5.8.1.
222			(I never claimed that I know what I am doing ;).
223	root	1.73	- set default to setjmp/longjmp on non-x86-linux.
224	root	1.72
225	root	1.71	0.6 Thu Nov 21 11:09:06 CET 2002
226			- made lazy context switching the default.
227			- fixed the bug where SemaphoreSet::guard
228			was the same as timed_guard and timed_guard was missing.
229			- fix a memleak in Coro::Timer.
230			- reclassified context sharing as not experimental.
231
232	root	1.70	0.534 Sun Apr 14 03:05:12 CEST 2002
233	root	1.69	- fixed backspace => tab in header parsing (myhttpd).
234	root	1.70	- added eg/readline, for elmex.
235			- Coro::Event now calls ->start on first call instead of
236			->again, which created wrong timeouts for the first ->next.
237			- fixed a bug where Coro::Socket returned a closed socket instead
238			of nothing on ECONNREFUSED and similar error conditions.
239	root	1.69
240	root	1.68	0.533 Mon Feb 18 18:49:40 CET 2002
241			- adapt to finally working Event-0.85.
242			- fixed buggy event initialization (trapped under windows, but how
243			could it possibly have worked anywhere?)
244
245	root	1.67	0.532 Wed Jan 16 02:45:32 CET 2002
246	root	1.66	- removed the reference to pp_entersub, might work on
247			(some) win32 perls now (testsuite works under cygwin,
248			without Event, which freezes).
249	root	1.65
250	root	1.64	0.531 Mon Dec 10 22:18:44 CET 2001
251	root	1.63	- Fixed a bug in SemaphoreSet::timed_down.
252
253	root	1.64	0.53 Tue Nov 27 21:11:13 CET 2001
254	root	1.60	- some tests for Event.
255	root	1.61	- slightly different internal architecture to get refcnt into the object
256			and not the reference. might fix a few bugs, certainly did introduce
257			new ones.
258			- Coro::Timer (independent of Event).
259	root	1.62	- new timed_wait functions for Coro::Signal, Semaphore, SemaphoreSet.
260	root	1.60
261	root	1.64	0.52 Tue Nov 6 21:36:18 CET 2001
262	root	1.58	- ported to cygwin (trivial).
263			patch by Gerrit P. Haase <gp@familiehaase.de>.
264			- small setjmp code fix by Sullivan.DanielJ@epamail.epa.gov.
265
266	root	1.64	0.51 Thu Nov 1 20:39:01 CET 2001
267	root	1.54	- terminate/cancel now work properly (otherwise termination
268			could cause a "next coroutine is not and contains not..."
269			error.
270	root	1.55	- added Coro::Socket::shutdown.
271	root	1.56	- Coro::Event::loop no is the same as Event::loop.
272			- implemented terminate with args + join.
273	root	1.54
274	root	1.64	0.5 Fri Sep 28 16:15:35 CEST 2001
275	root	1.53	- fixed "print" on a Coro::Handle. The print method worked.
276	root	1.50	- small tweaks (seem to reduce memory consumption a lot)
277			in various modules.
278			- splendid use of "no warnings" scattered throughout.
279	root	1.52	- added Coro::Handle::rbuf, fixed Coro::Handle::fh.
280	root	1.48
281	root	1.47	0.49 Sun Sep 16 02:42:45 CEST 2001
282	root	1.43	- changed some method calls to function calls for speed
283			inside Coro::Handle.
284	root	1.44	- make Coro::Handle use an array instead of a hash for
285			speed reasons.
286			- IRIX mystery solved: it's SGI's NT, after all: "standard, huh?".
287			sjlj and ucontext should now work.
288			- IRIX-specific port for libcoro.
289	root	1.45	- swapped order of accept results to match IO::Socket.
290	root	1.46	- changed getsock/peername to sock/peername to match IO::Socket.
291			- fixed a bug that caused segfault when returning to main task
292			under some circumstances.
293			- other bugfixes.
294	root	1.43
295	root	1.42	0.45 Sun Sep 2 02:54:01 CEST 2001
296	root	1.36	- new method Coro::Handle::timeout.
297			- corrected speling of set...name to get...name in Coro::Socket.
298			- Coro::Socket::accept now returns a Coro::Socket, not a Coro::Handle.
299			- Coro::Handle now supports fileno and FILENO.
300			- added eg/myhttpd, a web server.
301	root	1.37	- Coro::Socket now accepts numeric ports as well as "port(number)"
302			syntax.
303	root	1.38	- moved some scheduling primitives into xs code. more to come.
304	root	1.39	- new simple priority system.
305	root	1.40	- implemented Coro::Event using XS, almost four times faster!
306	root	1.41	- small memory corruption problem fixed (boy that was difficult).
307	root	1.36
308	root	1.35	0.13 Wed Aug 8 16:53:07 CEST 2001
309	root	1.31	- new method Coro::Handle::readline.
310	root	1.34	- added eg/lwp and Coro::Handle::autoflush, to make LWP work.
311			(see eg/lwp on how to make LWP non-blocking).
312	root	1.31	- renamed Coro::Socket::new_inet to new.
313	root	1.32	- added Coro::Util, some utility functions.
314	root	1.33	- die/eval now works better (still get annoying (but true ;)
315			"Callback called exit" messages).
316	root	1.34	- Coro::Handle now supports timeout, and Coro::Socket Timeout.
317			- much better Coro::Socket support.
318	root	1.31
319			0.12 Fri Jul 27 04:19:01 CEST 2001
320	root	1.29	- do not use mmap if neither MAP_ANON nor MAP_ANONYMOUS is defined.
321	root	1.34	- very experimental stack sharing algorithm. not 100% safe but
322	root	1.28	should work well in practise ;)
323	root	1.30	- added Coro::RWLock.
324	root	1.31	- Coro::Specific now works.
325	root	1.28
326			0.11 Tue Jul 24 22:49:21 CEST 2001
327	root	1.27	- added specialized hack for newer and older linux versions (fast).
328			- renamed Coro::Event::IO to Coro::Handle.
329			- new module Coro::Socket.
330
331	root	1.26	0.1 Tue Jul 24 01:47:53 CEST 2001
332	root	1.23	- release candidate 3. A rather new internal structure :(
333	root	1.24	- the great renaming: Damian Conway gave me a suitable replacement
334			for yield.
335	root	1.23	- added Coro/libcoro, a portable coroutine implementation for C
336	root	1.22	(not even perl-dependent!!!), which can be used by Coro::State.
337	root	1.20	- renamed SAVE_DEFSV (on xs-level only) to avoid symbol clash in
338			perl-5.6.
339	root	1.16	- new function Coro::Event::idle.
340			- the idle process is now overriden
341			by default in Coro::Event.
342	root	1.17	- Coro::Channel now enforces the size.
343	root	1.18	- canceling events now works in all cases.
344	root	1.19	- Coro state now include $_ and $@.
345			- yet another bug workaround that I do not really understand :(
346	root	1.21	- new module Coro::Event::IO (very undocumented) to do
347			non-blocking i/o.
348	root	1.25	- performance tuning.
349	root	1.16
350	root	1.15	0.08 Thu Jul 19 06:13:25 CEST 2001
351	root	1.14	- release candidate 2 (new functionality).
352	root	1.13	- add Coro::State::flush function.
353			- transfer now supports a flags value (mostly for speed ATM).
354			- might compile and work in the presence of threads now.
355	root	1.14	- continuations have a saner syntax.
356	root	1.19	- no more memleaks.
357	root	1.13
358	root	1.12	0.07 Tue Jul 17 17:40:18 CEST 2001
359			- release candidate 1 ;)
360			- slightly nicer code.
361			- fixed a scheduling bug in Coro::Event.
362
363	root	1.11	0.06 Tue Jul 17 04:23:24 CEST 2001
364			- ok, I found the showstopper - the same sub must not be
365	root	1.9	re-entered in two different coroutines, otherwise => crash. I
366			see no easy solution to this problem, except by walking the call
367			chaing and saving/restoring the cv's, which is what I do now.
368	root	1.11	- memory leaks still latent, especially at thread termination.
369			- Coro::Event now works (haha).
370	root	1.9
371	root	1.8	0.05 Sun Jul 15 17:32:20 CEST 2001
372			- fixed a few issues in Coro::Event.
373			- I forgot to include Coro::Event in 0.04 :(:(:(
374
375	root	1.7	0.04 Sun Jul 15 05:24:59 CEST 2001
376	root	1.5	- @_ is now properly localized.
377	root	1.4	- Coro::State is now easier subclassable.
378			- Coro::Cont now coroutine-aware.
379			- Coro::Specific is a low-overhead module to create
380			coroutine-specific vars.
381	root	1.6	- Coro::Event provides a simple interface to Event.
382	root	1.4
383	root	1.3	0.03 Fri Jul 13 14:51:52 CEST 2001
384	root	1.4	- transfer() now implemented in XS (beware).
385			- new module Coro::Cont for really faked continuations.
386			- big internal architecture changes: Coro::State is now
387	root	1.3	really low-level and can thus be used to implement other
388	root	1.4	interesting things, While "Coro::" implements a process-like
389			model. Still crude and subject to change.
390	root	1.3	- $_ and $@ are no longer being localized.
391
392	root	1.2	0.02 Tue Jul 10 01:38:17 CEST 2001
393			- implemented "async" attribute.
394			- $_ and $@ are now localized.
395			- added Coro::Channel.
396			- more testcases, still no docs.
397
398	root	1.1	0.01 Tue Jul 3 02:18:41 CEST 2001
399			- original version; copied from Convert::Scalar.
400