[ViewVC] Annotation of: cvs/Coro/Changes

Revision history for Perl extension Coro.

TODO: better (earlier) error messages on broken transfer's
TODO: destroy gets only called on cancel: fix(?)

3.3
        - 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).
        - fixed an assert ("... == prev__cctx->idle_te")
          that could errronously trigger.
        - fix various large and small memleaks.
        - use a (hopefully) more stable cancel implementation
          that immediately frees the coroutine data.
        - cede/cede_notself return a status now.
        - added Coro::guard function.
        - added a global coroutine pool for jobs (on my machine,
          I can create and execute 48k simple coros/s with async,
          and 128k coros with async_pool).

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:	1.194
Committed:	Fri Jan 5 18:25:51 2007 UTC (17 years, 4 months ago) by root
Branch:	MAIN
Changes since 1.193:	+1 -0 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	root	1.191	TODO: destroy gets only called on cancel: fix(?)
5	root	1.173
6	root	1.189	3.3
7	root	1.187	- implement $coro->on_destroy.
8	root	1.188	- Coro::Event blocking semantics have been changed,
9			documented and - hopefully - improved.
10	root	1.184	- fix nice adding, not subtracting, from priority.
11	root	1.185	- fix ->prio and api_is_ready (patch by Mark Hinds).
12	root	1.190	- fixed an assert ("... == prev__cctx->idle_te")
13			that could errronously trigger.
14	root	1.192	- fix various large and small memleaks.
15	root	1.191	- use a (hopefully) more stable cancel implementation
16			that immediately frees the coroutine data.
17	root	1.194	- cede/cede_notself return a status now.
18	root	1.191	- added Coro::guard function.
19	root	1.193	- added a global coroutine pool for jobs (on my machine,
20			I can create and execute 48k simple coros/s with async,
21			and 128k coros with async_pool).
22	root	1.184
23	root	1.183	3.2 Fri Dec 22 05:07:09 CET 2006
24	root	1.179	- improve portability to slightly older perls.
25	root	1.180	- use cleaner coroutine destruction.
26	root	1.182	- simplify configuration for users.
27			- optionally (unrecommended) prefer perl functions over
28			their coro replacements.
29	root	1.179
30	root	1.178	3.11 Tue Dec 5 13:11:24 CET 2006
31			- fixed some bogus assert's, but as perl.h disables assert even
32			without NDEBUG (thank you very much), not too many people should
33			notice (that did include myself). Andreas König noticed, though :)
34			- do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
35			it. Also noticed by Andreas König :)
36			- save/restore tainted status.
37			- verified to pass the testsuite on my 5.9.5.
38
39	root	1.177	3.1 Mon Dec 4 23:03:40 CET 2006
40			- INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
41	root	1.175	- incompatible change: transfer flags are now per-state.
42	root	1.173	- give a better error message on deadlock.
43	root	1.175	- document Coro::nready.
44	root	1.174	- enhanced testsuite.
45	root	1.169
46	root	1.172	3.01 Sun Dec 3 23:47:42 CET 2006
47			- forgot to include Coro::Timer.
48
49	root	1.171	3.0 Sun Dec 3 22:57:25 CET 2006
50	root	1.163	- the "FINALLY COMPLETELY STABLE" release (coming soon:
51			the "FAMOUS LAST WORDS" release).
52	root	1.166	- implement a new stack sharing algorithm, which uses a stack
53			pool (size currently hardcoded).
54	root	1.155	- make stack sharing mandatory (it no longer uses a heuristic).
55	root	1.157	- eval/die no longer cause weird problems under heavy use.
56	root	1.152	- Coro::Event could cause livelocks if it was used but
57	root	1.161	no Coro::Event watchers were used.
58	root	1.167	- Coro::Event now uses asynccheck as prepare does not
59			check for changed watchers.
60	root	1.170	- Coro::Event allows multiple waiting coros and will wake up one
61			per event.
62	root	1.152	- Coro::Event should be cleaner and more efficient now.
63	root	1.165	- new utility function Coro::unblock_sub.
64	root	1.164	- document the sad fact that Event is no longer reentrant.
65	root	1.163	- putting a coroutine into the ready queue twice could under
66			some circumstances lead to stack corruption.
67	root	1.161	- minor incompatibility: subclassing Coro::State is supported
68			directly now without going through a _coro_state member.
69	root	1.156	- state/coro switching is much faster now.
70	root	1.154	- very minor optimisations and code/documentation cleanup.
71	root	1.153	- avoid problems due to compiler inlining.
72	root	1.154	- removed timers from Coro::Timer -> use AnyEvent instead.
73			- replaced Coro::idle coroutine by (cleaner) idle handler.
74	root	1.156	- updated to newest libcoro.
75	root	1.159	- implement enhanced support for valgrind.
76	root	1.162	- implement is_ready and return value for ready.
77	root	1.168	- removed Coro::Cont, it was a misnomer (it's generators),
78			and it was somewhat annoying to get it right. Will come back
79			if somebody asks for it :)
80	root	1.163	- many ->wait methods and Coro::Event could return
81			spuriously without the event having happened.
82	root	1.146
83	root	1.145	2.5 Tue Nov 7 12:22:33 CET 2006
84	root	1.143	- made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
85			use AnyEvent, moved them to Coro/.
86	root	1.140	- added Coro::LWP which contains all the uglyness required to
87			make LWP non-blocking.
88			- should work with perl 5.9.x now (Andreas König made me do it).
89	root	1.141	- fixed another bug in Coro::Select when the timeout was undef.
90	root	1.136	- reuse PL_start_env for all coros, saves some memory per coroutine.
91			- manage PL_top_env differently, hopefully to avoid panic: top_env.
92	root	1.137	- timeout argument was not properly used in Coro::Socket.
93			- allow limited forms of subclassing in Coro::Handle/Coro::Socket.
94	root	1.138	- emulate undocumented(!) functionality of IO::Socket required
95			by LWP(!!).
96			- updated eg/lwp to work with newer lwp's.
97	root	1.140	- remove "FATAL: uncaught exception" prefix. Coroutines that die
98			kill the whole process, just as exceptions in the main "coroutine"
99			did already.
100	root	1.135
101	root	1.134	2.1 Wed Nov 1 23:01:13 CET 2006
102			- fix a long-standing bug in Coro::Select where select with
103			zero timeout would instead change the current default filehandle.
104	root	1.132	- use a simpler and hopefully more robust way to clone padlists
105			(uses less memory and a perl function instead of our own).
106			- coro can now create a stack guard area on many architectures.
107	root	1.134	- Coro::AIO properly reexports additional functions from IO::AIO.
108	root	1.132	- updated libcoro with a workaround for OS X,
109	root	1.134	pach and testing by Michael Schwern.
110	root	1.130
111	root	1.129	2.0 Tue Oct 24 05:47:17 CEST 2006
112	root	1.128	- support additional aio requests in Coro::AIO.
113
114	root	1.129	1.9 (never properly released due to a glitch)
115
116	root	1.127	1.8 Thu Feb 2 00:59:06 CET 2006
117	root	1.125	- applied suggested patch by SAMV to avoid problems during stupid
118			mark & sweep gc run.
119	root	1.126	- applied patch by Scott Walters for 5.9.3 compatibility.
120	root	1.125
121	root	1.124	1.7 Tue Dec 27 01:41:58 CET 2005
122	root	1.123	- added Coro::AIO, a thin wrapper around IO::AIO.
123	root	1.122	- improved Makefile.PL explanations.
124
125	root	1.119	1.6 Mon Dec 12 21:30:05 CET 2005
126	root	1.117	- additionally save PM_curpm might fix as-of-yet
127	root	1.121	unseen problems with regex matches being attributed to the
128	root	1.117	wrong package.
129	root	1.118	- add t/10_bugs.t, which currently checks against imho broken
130			perls that use 0.26MB of stack space per Perl_magic_get
131	root	1.121	invocation (newer linuxes) as opposed to the 0.0002MB perl
132			normally uses.
133	root	1.120	- make stacksize configurable for the ultimate debian experience.
134	root	1.117
135	root	1.116	1.51 Mon Dec 12 18:48:36 CET 2005
136			- remove debugging warn() accidentally left in Coro::Select.
137
138	root	1.115	1.5 Tue Nov 29 13:32:44 CET 2005
139	root	1.114	- use Coro::Event inside Coro::Select to avoid spurious deadlocks.
140	root	1.115	- fix Coro::Select 'select'.
141			- strict'ify some modules.
142	root	1.112	- libcoro errornously restored the SIGUSR2 handler to SIGUSR1.
143	root	1.115	- use XSLoader in selected modules.
144			- remove some 5.6 compatibility cruft.
145	root	1.112
146	root	1.111	1.4 Tue Sep 6 00:11:05 CEST 2005
147			- libcoro did not take into account the trampoline on amd64,
148			when 'l'inux method was used.
149
150	root	1.110	1.31 Tue Aug 30 23:31:33 CEST 2005
151			- some portability fixes/workarounds.
152
153	root	1.107	1.3 Sat Aug 20 03:08:56 CEST 2005
154	root	1.108	- no code changes. module seems to work fine.
155	root	1.106	- improve Coro::State docs, remove reference to nonexisting
156			Coro::State::flush method.
157	root	1.107	- no longer autodetect windows, present it as an option instead.
158	root	1.106
159	root	1.105	1.2 Mon May 16 02:00:55 CEST 2005
160	root	1.100	- included libcoro.c earlier in State.xs, might improve portability.
161	root	1.101	- use a faster and possibly more stable Coro::Cont implementation.
162	root	1.102	- accept x86_64 in addition to amd64 for optimized linux-amd64 support.
163	root	1.104	- fix bugs Coro::SemaphoreSet that could cause locks never to be freed.
164	root	1.105	- fix bugs in CoroAPI.h and document it in Coro::MakeMaker.
165	root	1.100
166	root	1.99	1.11 Thu Mar 3 18:00:52 CET 2005
167			- change of contact address.
168
169	root	1.98	1.1 Tue Feb 22 20:51:16 CET 2005
170	root	1.97	- support [l]inux method on amd64.
171	root	1.109	- allow some context switches while compiling/eval'ing.
172	root	1.97
173	root	1.96	1.0 Tue Aug 10 03:47:27 CEST 2004
174	root	1.95	- Event 0.89 fixes the bug again.
175	root	1.96	- fix the remaining(??) memleak. I didn't free the cache-AV for
176			padlists, so one AV per created anon-sub leaked.
177	root	1.95
178	pcg	1.94	0.97 Fri May 14 15:23:32 CEST 2004
179			- remove stupid gcc extension that was an experiment only anyway.
180
181	pcg	1.93	0.96 Thu May 13 18:09:29 CEST 2004
182	root	1.103	- tell people if they have yet another broken Event variant.
183	pcg	1.91	- made Coro to work _better_ with threads (it seems that, as long
184			as you use Coros in one thread only everything will work fine.
185			Looking at the perl source the problem might be missing locking
186			between Coro and some perl internal routines. That's not easily
187			fixable).
188	pcg	1.92	- (hopefully) got rid of the static xnext inside transfer.
189	pcg	1.91
190	pcg	1.90	0.95 Sun Feb 15 03:20:28 CET 2004
191	pcg	1.86	- removed Coro::State::flush, implemented a new and much
192			faster caching mechanism by attaching magic to the CV.
193	pcg	1.87	- a memleak with (real) closures remains.
194	pcg	1.88	- dramatically reduced size of stacks to 65536 (linux/x86), after
195			observing that even myhttpd never had more than a kilobyte
196			of stack in use (stack is still only physically allocated in
197			pagesize increments for systems suporting mmap).
198	pcg	1.89	- fix for a "cygwin-64" architecture added, proposed by Stefan Traby.
199	pcg	1.90	- fix for threaded perl.
200	pcg	1.86
201	pcg	1.85	0.9 Sun Nov 23 04:32:39 CET 2003
202	pcg	1.84	- fix a few very hard to track down but (of course) stupid
203			memory leaks.
204			- stringify version number to avoid locale problems :(.
205	pcg	1.85	- perl 5.9.0 does not have SvPADBUSY, reported by Scott Walters,
206			hopefully ignoring it "just works".
207	pcg	1.84
208	pcg	1.83	0.8 Wed Nov 5 19:38:40 CET 2003
209			- port to perl5.005_03, but only 5.8.x+ is supported!
210	pcg	1.82	- honor LocalAddr even without LocalPort in Coro::Socket.
211
212	root	1.81	0.7 Tue May 27 03:12:38 CEST 2003
213			- the version jump indicates some level of testing, not gobs
214			of new features.
215	root	1.80	- uh... I found the prompt function in ExtUtils::MakeMaker.
216			Highly correct stuff, that is...
217	root	1.81	- fixed(?) a bug with die's in coroutines causing "panic: top_env".
218			the fix is not well understood by the author, so beware :(.
219	root	1.80
220	root	1.79	0.652 Thu May 8 02:54:46 CEST 2003
221	root	1.76	- Applied patch by Slaven Rezic to set default to "s" on FreeBSD,
222	root	1.78	cause version 4 doesn't have ucontext.
223	root	1.77	- Benjamin Reed reported that setjmp works fine on darwin,
224			so preselect it.
225	root	1.76
226	root	1.75	0.651 Sat Mar 29 15:00:23 CET 2003
227			- fix a bug in Coro::Handle where some bytes could get lost
228			on reading, reported by jason@nichego.net.
229	root	1.74
230	root	1.73	0.65 Sun Mar 23 00:08:26 CET 2003
231	root	1.72	- added a README.linux-glibc.
232			- new module Coro::Select.
233			- also save/restore PL_comppad, fixes segfaults with 5.8.1.
234			(I never claimed that I know what I am doing ;).
235	root	1.73	- set default to setjmp/longjmp on non-x86-linux.
236	root	1.72
237	root	1.71	0.6 Thu Nov 21 11:09:06 CET 2002
238			- made lazy context switching the default.
239			- fixed the bug where SemaphoreSet::guard
240			was the same as timed_guard and timed_guard was missing.
241			- fix a memleak in Coro::Timer.
242			- reclassified context sharing as not experimental.
243
244	root	1.70	0.534 Sun Apr 14 03:05:12 CEST 2002
245	root	1.69	- fixed backspace => tab in header parsing (myhttpd).
246	root	1.70	- added eg/readline, for elmex.
247			- Coro::Event now calls ->start on first call instead of
248			->again, which created wrong timeouts for the first ->next.
249			- fixed a bug where Coro::Socket returned a closed socket instead
250			of nothing on ECONNREFUSED and similar error conditions.
251	root	1.69
252	root	1.68	0.533 Mon Feb 18 18:49:40 CET 2002
253			- adapt to finally working Event-0.85.
254			- fixed buggy event initialization (trapped under windows, but how
255			could it possibly have worked anywhere?)
256
257	root	1.67	0.532 Wed Jan 16 02:45:32 CET 2002
258	root	1.66	- removed the reference to pp_entersub, might work on
259			(some) win32 perls now (testsuite works under cygwin,
260			without Event, which freezes).
261	root	1.65
262	root	1.64	0.531 Mon Dec 10 22:18:44 CET 2001
263	root	1.63	- Fixed a bug in SemaphoreSet::timed_down.
264
265	root	1.64	0.53 Tue Nov 27 21:11:13 CET 2001
266	root	1.60	- some tests for Event.
267	root	1.61	- slightly different internal architecture to get refcnt into the object
268			and not the reference. might fix a few bugs, certainly did introduce
269			new ones.
270			- Coro::Timer (independent of Event).
271	root	1.62	- new timed_wait functions for Coro::Signal, Semaphore, SemaphoreSet.
272	root	1.60
273	root	1.64	0.52 Tue Nov 6 21:36:18 CET 2001
274	root	1.58	- ported to cygwin (trivial).
275			patch by Gerrit P. Haase <gp@familiehaase.de>.
276			- small setjmp code fix by Sullivan.DanielJ@epamail.epa.gov.
277
278	root	1.64	0.51 Thu Nov 1 20:39:01 CET 2001
279	root	1.54	- terminate/cancel now work properly (otherwise termination
280			could cause a "next coroutine is not and contains not..."
281			error.
282	root	1.55	- added Coro::Socket::shutdown.
283	root	1.56	- Coro::Event::loop no is the same as Event::loop.
284			- implemented terminate with args + join.
285	root	1.54
286	root	1.64	0.5 Fri Sep 28 16:15:35 CEST 2001
287	root	1.53	- fixed "print" on a Coro::Handle. The print method worked.
288	root	1.50	- small tweaks (seem to reduce memory consumption a lot)
289			in various modules.
290			- splendid use of "no warnings" scattered throughout.
291	root	1.52	- added Coro::Handle::rbuf, fixed Coro::Handle::fh.
292	root	1.48
293	root	1.47	0.49 Sun Sep 16 02:42:45 CEST 2001
294	root	1.43	- changed some method calls to function calls for speed
295			inside Coro::Handle.
296	root	1.44	- make Coro::Handle use an array instead of a hash for
297			speed reasons.
298			- IRIX mystery solved: it's SGI's NT, after all: "standard, huh?".
299			sjlj and ucontext should now work.
300			- IRIX-specific port for libcoro.
301	root	1.45	- swapped order of accept results to match IO::Socket.
302	root	1.46	- changed getsock/peername to sock/peername to match IO::Socket.
303			- fixed a bug that caused segfault when returning to main task
304			under some circumstances.
305			- other bugfixes.
306	root	1.43
307	root	1.42	0.45 Sun Sep 2 02:54:01 CEST 2001
308	root	1.36	- new method Coro::Handle::timeout.
309			- corrected speling of set...name to get...name in Coro::Socket.
310			- Coro::Socket::accept now returns a Coro::Socket, not a Coro::Handle.
311			- Coro::Handle now supports fileno and FILENO.
312			- added eg/myhttpd, a web server.
313	root	1.37	- Coro::Socket now accepts numeric ports as well as "port(number)"
314			syntax.
315	root	1.38	- moved some scheduling primitives into xs code. more to come.
316	root	1.39	- new simple priority system.
317	root	1.40	- implemented Coro::Event using XS, almost four times faster!
318	root	1.41	- small memory corruption problem fixed (boy that was difficult).
319	root	1.36
320	root	1.35	0.13 Wed Aug 8 16:53:07 CEST 2001
321	root	1.31	- new method Coro::Handle::readline.
322	root	1.34	- added eg/lwp and Coro::Handle::autoflush, to make LWP work.
323			(see eg/lwp on how to make LWP non-blocking).
324	root	1.31	- renamed Coro::Socket::new_inet to new.
325	root	1.32	- added Coro::Util, some utility functions.
326	root	1.33	- die/eval now works better (still get annoying (but true ;)
327			"Callback called exit" messages).
328	root	1.34	- Coro::Handle now supports timeout, and Coro::Socket Timeout.
329			- much better Coro::Socket support.
330	root	1.31
331			0.12 Fri Jul 27 04:19:01 CEST 2001
332	root	1.29	- do not use mmap if neither MAP_ANON nor MAP_ANONYMOUS is defined.
333	root	1.34	- very experimental stack sharing algorithm. not 100% safe but
334	root	1.28	should work well in practise ;)
335	root	1.30	- added Coro::RWLock.
336	root	1.31	- Coro::Specific now works.
337	root	1.28
338			0.11 Tue Jul 24 22:49:21 CEST 2001
339	root	1.27	- added specialized hack for newer and older linux versions (fast).
340			- renamed Coro::Event::IO to Coro::Handle.
341			- new module Coro::Socket.
342
343	root	1.26	0.1 Tue Jul 24 01:47:53 CEST 2001
344	root	1.23	- release candidate 3. A rather new internal structure :(
345	root	1.24	- the great renaming: Damian Conway gave me a suitable replacement
346			for yield.
347	root	1.23	- added Coro/libcoro, a portable coroutine implementation for C
348	root	1.22	(not even perl-dependent!!!), which can be used by Coro::State.
349	root	1.20	- renamed SAVE_DEFSV (on xs-level only) to avoid symbol clash in
350			perl-5.6.
351	root	1.16	- new function Coro::Event::idle.
352			- the idle process is now overriden
353			by default in Coro::Event.
354	root	1.17	- Coro::Channel now enforces the size.
355	root	1.18	- canceling events now works in all cases.
356	root	1.19	- Coro state now include $_ and $@.
357			- yet another bug workaround that I do not really understand :(
358	root	1.21	- new module Coro::Event::IO (very undocumented) to do
359			non-blocking i/o.
360	root	1.25	- performance tuning.
361	root	1.16
362	root	1.15	0.08 Thu Jul 19 06:13:25 CEST 2001
363	root	1.14	- release candidate 2 (new functionality).
364	root	1.13	- add Coro::State::flush function.
365			- transfer now supports a flags value (mostly for speed ATM).
366			- might compile and work in the presence of threads now.
367	root	1.14	- continuations have a saner syntax.
368	root	1.19	- no more memleaks.
369	root	1.13
370	root	1.12	0.07 Tue Jul 17 17:40:18 CEST 2001
371			- release candidate 1 ;)
372			- slightly nicer code.
373			- fixed a scheduling bug in Coro::Event.
374
375	root	1.11	0.06 Tue Jul 17 04:23:24 CEST 2001
376			- ok, I found the showstopper - the same sub must not be
377	root	1.9	re-entered in two different coroutines, otherwise => crash. I
378			see no easy solution to this problem, except by walking the call
379			chaing and saving/restoring the cv's, which is what I do now.
380	root	1.11	- memory leaks still latent, especially at thread termination.
381			- Coro::Event now works (haha).
382	root	1.9
383	root	1.8	0.05 Sun Jul 15 17:32:20 CEST 2001
384			- fixed a few issues in Coro::Event.
385			- I forgot to include Coro::Event in 0.04 :(:(:(
386
387	root	1.7	0.04 Sun Jul 15 05:24:59 CEST 2001
388	root	1.5	- @_ is now properly localized.
389	root	1.4	- Coro::State is now easier subclassable.
390			- Coro::Cont now coroutine-aware.
391			- Coro::Specific is a low-overhead module to create
392			coroutine-specific vars.
393	root	1.6	- Coro::Event provides a simple interface to Event.
394	root	1.4
395	root	1.3	0.03 Fri Jul 13 14:51:52 CEST 2001
396	root	1.4	- transfer() now implemented in XS (beware).
397			- new module Coro::Cont for really faked continuations.
398			- big internal architecture changes: Coro::State is now
399	root	1.3	really low-level and can thus be used to implement other
400	root	1.4	interesting things, While "Coro::" implements a process-like
401			model. Still crude and subject to change.
402	root	1.3	- $_ and $@ are no longer being localized.
403
404	root	1.2	0.02 Tue Jul 10 01:38:17 CEST 2001
405			- implemented "async" attribute.
406			- $_ and $@ are now localized.
407			- added Coro::Channel.
408			- more testcases, still no docs.
409
410	root	1.1	0.01 Tue Jul 3 02:18:41 CEST 2001
411			- original version; copied from Convert::Scalar.
412