[ViewVC] Annotation of: cvs/Coro/Changes

Revision history for Perl extension Coro.

TODO: possibly convert some of the Event modules into AnyEvent users.

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