[ViewVC] Annotation of: cvs/Coro/Changes

Revision history for Perl extension Coro.

TODO: check wether stack-sharing is still effective
TODO: more effective stack sharing by having one "default stack" for "simple" coroutines?
TODO: verify exception frame changes and force stack copies?

        - reimplement a new stack sharing algorithm.
        - 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
          Event watchers were used directly.
        - Coro::Event should be cleaner and more efficient now.
        - minor incompatibility: subclassing 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.

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:	1.157
Committed:	Sun Nov 26 17:35:42 2006 UTC (17 years, 5 months ago) by root
Branch:	MAIN
Changes since 1.156:	+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	1.148	TODO: check wether stack-sharing is still effective
4			TODO: more effective stack sharing by having one "default stack" for "simple" coroutines?
5			TODO: verify exception frame changes and force stack copies?
6
7	root	1.155	- reimplement a new stack sharing algorithm.
8			- make stack sharing mandatory (it no longer uses a heuristic).
9	root	1.157	- eval/die no longer cause weird problems under heavy use.
10	root	1.152	- Coro::Event could cause livelocks if it was used but
11			Event watchers were used directly.
12			- Coro::Event should be cleaner and more efficient now.
13	root	1.154	- minor incompatibility: subclassing is supported directly now
14			without going through a _coro_state member.
15	root	1.156	- state/coro switching is much faster now.
16	root	1.154	- very minor optimisations and code/documentation cleanup.
17	root	1.153	- avoid problems due to compiler inlining.
18	root	1.154	- removed timers from Coro::Timer -> use AnyEvent instead.
19			- replaced Coro::idle coroutine by (cleaner) idle handler.
20	root	1.156	- updated to newest libcoro.
21	root	1.146
22	root	1.145	2.5 Tue Nov 7 12:22:33 CET 2006
23	root	1.143	- made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
24			use AnyEvent, moved them to Coro/.
25	root	1.140	- added Coro::LWP which contains all the uglyness required to
26			make LWP non-blocking.
27			- should work with perl 5.9.x now (Andreas König made me do it).
28	root	1.141	- fixed another bug in Coro::Select when the timeout was undef.
29	root	1.136	- reuse PL_start_env for all coros, saves some memory per coroutine.
30			- manage PL_top_env differently, hopefully to avoid panic: top_env.
31	root	1.137	- timeout argument was not properly used in Coro::Socket.
32			- allow limited forms of subclassing in Coro::Handle/Coro::Socket.
33	root	1.138	- emulate undocumented(!) functionality of IO::Socket required
34			by LWP(!!).
35			- updated eg/lwp to work with newer lwp's.
36	root	1.140	- remove "FATAL: uncaught exception" prefix. Coroutines that die
37			kill the whole process, just as exceptions in the main "coroutine"
38			did already.
39	root	1.135
40	root	1.134	2.1 Wed Nov 1 23:01:13 CET 2006
41			- fix a long-standing bug in Coro::Select where select with
42			zero timeout would instead change the current default filehandle.
43	root	1.132	- use a simpler and hopefully more robust way to clone padlists
44			(uses less memory and a perl function instead of our own).
45			- coro can now create a stack guard area on many architectures.
46	root	1.134	- Coro::AIO properly reexports additional functions from IO::AIO.
47	root	1.132	- updated libcoro with a workaround for OS X,
48	root	1.134	pach and testing by Michael Schwern.
49	root	1.130
50	root	1.129	2.0 Tue Oct 24 05:47:17 CEST 2006
51	root	1.128	- support additional aio requests in Coro::AIO.
52
53	root	1.129	1.9 (never properly released due to a glitch)
54
55	root	1.127	1.8 Thu Feb 2 00:59:06 CET 2006
56	root	1.125	- applied suggested patch by SAMV to avoid problems during stupid
57			mark & sweep gc run.
58	root	1.126	- applied patch by Scott Walters for 5.9.3 compatibility.
59	root	1.125
60	root	1.124	1.7 Tue Dec 27 01:41:58 CET 2005
61	root	1.123	- added Coro::AIO, a thin wrapper around IO::AIO.
62	root	1.122	- improved Makefile.PL explanations.
63
64	root	1.119	1.6 Mon Dec 12 21:30:05 CET 2005
65	root	1.117	- additionally save PM_curpm might fix as-of-yet
66	root	1.121	unseen problems with regex matches being attributed to the
67	root	1.117	wrong package.
68	root	1.118	- add t/10_bugs.t, which currently checks against imho broken
69			perls that use 0.26MB of stack space per Perl_magic_get
70	root	1.121	invocation (newer linuxes) as opposed to the 0.0002MB perl
71			normally uses.
72	root	1.120	- make stacksize configurable for the ultimate debian experience.
73	root	1.117
74	root	1.116	1.51 Mon Dec 12 18:48:36 CET 2005
75			- remove debugging warn() accidentally left in Coro::Select.
76
77	root	1.115	1.5 Tue Nov 29 13:32:44 CET 2005
78	root	1.114	- use Coro::Event inside Coro::Select to avoid spurious deadlocks.
79	root	1.115	- fix Coro::Select 'select'.
80			- strict'ify some modules.
81	root	1.112	- libcoro errornously restored the SIGUSR2 handler to SIGUSR1.
82	root	1.115	- use XSLoader in selected modules.
83			- remove some 5.6 compatibility cruft.
84	root	1.112
85	root	1.111	1.4 Tue Sep 6 00:11:05 CEST 2005
86			- libcoro did not take into account the trampoline on amd64,
87			when 'l'inux method was used.
88
89	root	1.110	1.31 Tue Aug 30 23:31:33 CEST 2005
90			- some portability fixes/workarounds.
91
92	root	1.107	1.3 Sat Aug 20 03:08:56 CEST 2005
93	root	1.108	- no code changes. module seems to work fine.
94	root	1.106	- improve Coro::State docs, remove reference to nonexisting
95			Coro::State::flush method.
96	root	1.107	- no longer autodetect windows, present it as an option instead.
97	root	1.106
98	root	1.105	1.2 Mon May 16 02:00:55 CEST 2005
99	root	1.100	- included libcoro.c earlier in State.xs, might improve portability.
100	root	1.101	- use a faster and possibly more stable Coro::Cont implementation.
101	root	1.102	- accept x86_64 in addition to amd64 for optimized linux-amd64 support.
102	root	1.104	- fix bugs Coro::SemaphoreSet that could cause locks never to be freed.
103	root	1.105	- fix bugs in CoroAPI.h and document it in Coro::MakeMaker.
104	root	1.100
105	root	1.99	1.11 Thu Mar 3 18:00:52 CET 2005
106			- change of contact address.
107
108	root	1.98	1.1 Tue Feb 22 20:51:16 CET 2005
109	root	1.97	- support [l]inux method on amd64.
110	root	1.109	- allow some context switches while compiling/eval'ing.
111	root	1.97
112	root	1.96	1.0 Tue Aug 10 03:47:27 CEST 2004
113	root	1.95	- Event 0.89 fixes the bug again.
114	root	1.96	- fix the remaining(??) memleak. I didn't free the cache-AV for
115			padlists, so one AV per created anon-sub leaked.
116	root	1.95
117	pcg	1.94	0.97 Fri May 14 15:23:32 CEST 2004
118			- remove stupid gcc extension that was an experiment only anyway.
119
120	pcg	1.93	0.96 Thu May 13 18:09:29 CEST 2004
121	root	1.103	- tell people if they have yet another broken Event variant.
122	pcg	1.91	- made Coro to work _better_ with threads (it seems that, as long
123			as you use Coros in one thread only everything will work fine.
124			Looking at the perl source the problem might be missing locking
125			between Coro and some perl internal routines. That's not easily
126			fixable).
127	pcg	1.92	- (hopefully) got rid of the static xnext inside transfer.
128	pcg	1.91
129	pcg	1.90	0.95 Sun Feb 15 03:20:28 CET 2004
130	pcg	1.86	- removed Coro::State::flush, implemented a new and much
131			faster caching mechanism by attaching magic to the CV.
132	pcg	1.87	- a memleak with (real) closures remains.
133	pcg	1.88	- dramatically reduced size of stacks to 65536 (linux/x86), after
134			observing that even myhttpd never had more than a kilobyte
135			of stack in use (stack is still only physically allocated in
136			pagesize increments for systems suporting mmap).
137	pcg	1.89	- fix for a "cygwin-64" architecture added, proposed by Stefan Traby.
138	pcg	1.90	- fix for threaded perl.
139	pcg	1.86
140	pcg	1.85	0.9 Sun Nov 23 04:32:39 CET 2003
141	pcg	1.84	- fix a few very hard to track down but (of course) stupid
142			memory leaks.
143			- stringify version number to avoid locale problems :(.
144	pcg	1.85	- perl 5.9.0 does not have SvPADBUSY, reported by Scott Walters,
145			hopefully ignoring it "just works".
146	pcg	1.84
147	pcg	1.83	0.8 Wed Nov 5 19:38:40 CET 2003
148			- port to perl5.005_03, but only 5.8.x+ is supported!
149	pcg	1.82	- honor LocalAddr even without LocalPort in Coro::Socket.
150
151	root	1.81	0.7 Tue May 27 03:12:38 CEST 2003
152			- the version jump indicates some level of testing, not gobs
153			of new features.
154	root	1.80	- uh... I found the prompt function in ExtUtils::MakeMaker.
155			Highly correct stuff, that is...
156	root	1.81	- fixed(?) a bug with die's in coroutines causing "panic: top_env".
157			the fix is not well understood by the author, so beware :(.
158	root	1.80
159	root	1.79	0.652 Thu May 8 02:54:46 CEST 2003
160	root	1.76	- Applied patch by Slaven Rezic to set default to "s" on FreeBSD,
161	root	1.78	cause version 4 doesn't have ucontext.
162	root	1.77	- Benjamin Reed reported that setjmp works fine on darwin,
163			so preselect it.
164	root	1.76
165	root	1.75	0.651 Sat Mar 29 15:00:23 CET 2003
166			- fix a bug in Coro::Handle where some bytes could get lost
167			on reading, reported by jason@nichego.net.
168	root	1.74
169	root	1.73	0.65 Sun Mar 23 00:08:26 CET 2003
170	root	1.72	- added a README.linux-glibc.
171			- new module Coro::Select.
172			- also save/restore PL_comppad, fixes segfaults with 5.8.1.
173			(I never claimed that I know what I am doing ;).
174	root	1.73	- set default to setjmp/longjmp on non-x86-linux.
175	root	1.72
176	root	1.71	0.6 Thu Nov 21 11:09:06 CET 2002
177			- made lazy context switching the default.
178			- fixed the bug where SemaphoreSet::guard
179			was the same as timed_guard and timed_guard was missing.
180			- fix a memleak in Coro::Timer.
181			- reclassified context sharing as not experimental.
182
183	root	1.70	0.534 Sun Apr 14 03:05:12 CEST 2002
184	root	1.69	- fixed backspace => tab in header parsing (myhttpd).
185	root	1.70	- added eg/readline, for elmex.
186			- Coro::Event now calls ->start on first call instead of
187			->again, which created wrong timeouts for the first ->next.
188			- fixed a bug where Coro::Socket returned a closed socket instead
189			of nothing on ECONNREFUSED and similar error conditions.
190	root	1.69
191	root	1.68	0.533 Mon Feb 18 18:49:40 CET 2002
192			- adapt to finally working Event-0.85.
193			- fixed buggy event initialization (trapped under windows, but how
194			could it possibly have worked anywhere?)
195
196	root	1.67	0.532 Wed Jan 16 02:45:32 CET 2002
197	root	1.66	- removed the reference to pp_entersub, might work on
198			(some) win32 perls now (testsuite works under cygwin,
199			without Event, which freezes).
200	root	1.65
201	root	1.64	0.531 Mon Dec 10 22:18:44 CET 2001
202	root	1.63	- Fixed a bug in SemaphoreSet::timed_down.
203
204	root	1.64	0.53 Tue Nov 27 21:11:13 CET 2001
205	root	1.60	- some tests for Event.
206	root	1.61	- slightly different internal architecture to get refcnt into the object
207			and not the reference. might fix a few bugs, certainly did introduce
208			new ones.
209			- Coro::Timer (independent of Event).
210	root	1.62	- new timed_wait functions for Coro::Signal, Semaphore, SemaphoreSet.
211	root	1.60
212	root	1.64	0.52 Tue Nov 6 21:36:18 CET 2001
213	root	1.58	- ported to cygwin (trivial).
214			patch by Gerrit P. Haase <gp@familiehaase.de>.
215			- small setjmp code fix by Sullivan.DanielJ@epamail.epa.gov.
216
217	root	1.64	0.51 Thu Nov 1 20:39:01 CET 2001
218	root	1.54	- terminate/cancel now work properly (otherwise termination
219			could cause a "next coroutine is not and contains not..."
220			error.
221	root	1.55	- added Coro::Socket::shutdown.
222	root	1.56	- Coro::Event::loop no is the same as Event::loop.
223			- implemented terminate with args + join.
224	root	1.54
225	root	1.64	0.5 Fri Sep 28 16:15:35 CEST 2001
226	root	1.53	- fixed "print" on a Coro::Handle. The print method worked.
227	root	1.50	- small tweaks (seem to reduce memory consumption a lot)
228			in various modules.
229			- splendid use of "no warnings" scattered throughout.
230	root	1.52	- added Coro::Handle::rbuf, fixed Coro::Handle::fh.
231	root	1.48
232	root	1.47	0.49 Sun Sep 16 02:42:45 CEST 2001
233	root	1.43	- changed some method calls to function calls for speed
234			inside Coro::Handle.
235	root	1.44	- make Coro::Handle use an array instead of a hash for
236			speed reasons.
237			- IRIX mystery solved: it's SGI's NT, after all: "standard, huh?".
238			sjlj and ucontext should now work.
239			- IRIX-specific port for libcoro.
240	root	1.45	- swapped order of accept results to match IO::Socket.
241	root	1.46	- changed getsock/peername to sock/peername to match IO::Socket.
242			- fixed a bug that caused segfault when returning to main task
243			under some circumstances.
244			- other bugfixes.
245	root	1.43
246	root	1.42	0.45 Sun Sep 2 02:54:01 CEST 2001
247	root	1.36	- new method Coro::Handle::timeout.
248			- corrected speling of set...name to get...name in Coro::Socket.
249			- Coro::Socket::accept now returns a Coro::Socket, not a Coro::Handle.
250			- Coro::Handle now supports fileno and FILENO.
251			- added eg/myhttpd, a web server.
252	root	1.37	- Coro::Socket now accepts numeric ports as well as "port(number)"
253			syntax.
254	root	1.38	- moved some scheduling primitives into xs code. more to come.
255	root	1.39	- new simple priority system.
256	root	1.40	- implemented Coro::Event using XS, almost four times faster!
257	root	1.41	- small memory corruption problem fixed (boy that was difficult).
258	root	1.36
259	root	1.35	0.13 Wed Aug 8 16:53:07 CEST 2001
260	root	1.31	- new method Coro::Handle::readline.
261	root	1.34	- added eg/lwp and Coro::Handle::autoflush, to make LWP work.
262			(see eg/lwp on how to make LWP non-blocking).
263	root	1.31	- renamed Coro::Socket::new_inet to new.
264	root	1.32	- added Coro::Util, some utility functions.
265	root	1.33	- die/eval now works better (still get annoying (but true ;)
266			"Callback called exit" messages).
267	root	1.34	- Coro::Handle now supports timeout, and Coro::Socket Timeout.
268			- much better Coro::Socket support.
269	root	1.31
270			0.12 Fri Jul 27 04:19:01 CEST 2001
271	root	1.29	- do not use mmap if neither MAP_ANON nor MAP_ANONYMOUS is defined.
272	root	1.34	- very experimental stack sharing algorithm. not 100% safe but
273	root	1.28	should work well in practise ;)
274	root	1.30	- added Coro::RWLock.
275	root	1.31	- Coro::Specific now works.
276	root	1.28
277			0.11 Tue Jul 24 22:49:21 CEST 2001
278	root	1.27	- added specialized hack for newer and older linux versions (fast).
279			- renamed Coro::Event::IO to Coro::Handle.
280			- new module Coro::Socket.
281
282	root	1.26	0.1 Tue Jul 24 01:47:53 CEST 2001
283	root	1.23	- release candidate 3. A rather new internal structure :(
284	root	1.24	- the great renaming: Damian Conway gave me a suitable replacement
285			for yield.
286	root	1.23	- added Coro/libcoro, a portable coroutine implementation for C
287	root	1.22	(not even perl-dependent!!!), which can be used by Coro::State.
288	root	1.20	- renamed SAVE_DEFSV (on xs-level only) to avoid symbol clash in
289			perl-5.6.
290	root	1.16	- new function Coro::Event::idle.
291			- the idle process is now overriden
292			by default in Coro::Event.
293	root	1.17	- Coro::Channel now enforces the size.
294	root	1.18	- canceling events now works in all cases.
295	root	1.19	- Coro state now include $_ and $@.
296			- yet another bug workaround that I do not really understand :(
297	root	1.21	- new module Coro::Event::IO (very undocumented) to do
298			non-blocking i/o.
299	root	1.25	- performance tuning.
300	root	1.16
301	root	1.15	0.08 Thu Jul 19 06:13:25 CEST 2001
302	root	1.14	- release candidate 2 (new functionality).
303	root	1.13	- add Coro::State::flush function.
304			- transfer now supports a flags value (mostly for speed ATM).
305			- might compile and work in the presence of threads now.
306	root	1.14	- continuations have a saner syntax.
307	root	1.19	- no more memleaks.
308	root	1.13
309	root	1.12	0.07 Tue Jul 17 17:40:18 CEST 2001
310			- release candidate 1 ;)
311			- slightly nicer code.
312			- fixed a scheduling bug in Coro::Event.
313
314	root	1.11	0.06 Tue Jul 17 04:23:24 CEST 2001
315			- ok, I found the showstopper - the same sub must not be
316	root	1.9	re-entered in two different coroutines, otherwise => crash. I
317			see no easy solution to this problem, except by walking the call
318			chaing and saving/restoring the cv's, which is what I do now.
319	root	1.11	- memory leaks still latent, especially at thread termination.
320			- Coro::Event now works (haha).
321	root	1.9
322	root	1.8	0.05 Sun Jul 15 17:32:20 CEST 2001
323			- fixed a few issues in Coro::Event.
324			- I forgot to include Coro::Event in 0.04 :(:(:(
325
326	root	1.7	0.04 Sun Jul 15 05:24:59 CEST 2001
327	root	1.5	- @_ is now properly localized.
328	root	1.4	- Coro::State is now easier subclassable.
329			- Coro::Cont now coroutine-aware.
330			- Coro::Specific is a low-overhead module to create
331			coroutine-specific vars.
332	root	1.6	- Coro::Event provides a simple interface to Event.
333	root	1.4
334	root	1.3	0.03 Fri Jul 13 14:51:52 CEST 2001
335	root	1.4	- transfer() now implemented in XS (beware).
336			- new module Coro::Cont for really faked continuations.
337			- big internal architecture changes: Coro::State is now
338	root	1.3	really low-level and can thus be used to implement other
339	root	1.4	interesting things, While "Coro::" implements a process-like
340			model. Still crude and subject to change.
341	root	1.3	- $_ and $@ are no longer being localized.
342
343	root	1.2	0.02 Tue Jul 10 01:38:17 CEST 2001
344			- implemented "async" attribute.
345			- $_ and $@ are now localized.
346			- added Coro::Channel.
347			- more testcases, still no docs.
348
349	root	1.1	0.01 Tue Jul 3 02:18:41 CEST 2001
350			- original version; copied from Convert::Scalar.
351