[ViewVC] Annotation of: cvs/Coro/Changes

Revision history for Perl extension Coro.

        - 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:	1.158
Committed:	Sun Nov 26 17:36:40 2006 UTC (17 years, 5 months ago) by root
Branch:	MAIN
Changes since 1.157:	+0 -4 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	1.155	- reimplement a new stack sharing algorithm.
4			- make stack sharing mandatory (it no longer uses a heuristic).
5	root	1.157	- eval/die no longer cause weird problems under heavy use.
6	root	1.152	- Coro::Event could cause livelocks if it was used but
7			Event watchers were used directly.
8			- Coro::Event should be cleaner and more efficient now.
9	root	1.154	- minor incompatibility: subclassing is supported directly now
10			without going through a _coro_state member.
11	root	1.156	- state/coro switching is much faster now.
12	root	1.154	- very minor optimisations and code/documentation cleanup.
13	root	1.153	- avoid problems due to compiler inlining.
14	root	1.154	- removed timers from Coro::Timer -> use AnyEvent instead.
15			- replaced Coro::idle coroutine by (cleaner) idle handler.
16	root	1.156	- updated to newest libcoro.
17	root	1.146
18	root	1.145	2.5 Tue Nov 7 12:22:33 CET 2006
19	root	1.143	- made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
20			use AnyEvent, moved them to Coro/.
21	root	1.140	- added Coro::LWP which contains all the uglyness required to
22			make LWP non-blocking.
23			- should work with perl 5.9.x now (Andreas König made me do it).
24	root	1.141	- fixed another bug in Coro::Select when the timeout was undef.
25	root	1.136	- reuse PL_start_env for all coros, saves some memory per coroutine.
26			- manage PL_top_env differently, hopefully to avoid panic: top_env.
27	root	1.137	- timeout argument was not properly used in Coro::Socket.
28			- allow limited forms of subclassing in Coro::Handle/Coro::Socket.
29	root	1.138	- emulate undocumented(!) functionality of IO::Socket required
30			by LWP(!!).
31			- updated eg/lwp to work with newer lwp's.
32	root	1.140	- remove "FATAL: uncaught exception" prefix. Coroutines that die
33			kill the whole process, just as exceptions in the main "coroutine"
34			did already.
35	root	1.135
36	root	1.134	2.1 Wed Nov 1 23:01:13 CET 2006
37			- fix a long-standing bug in Coro::Select where select with
38			zero timeout would instead change the current default filehandle.
39	root	1.132	- use a simpler and hopefully more robust way to clone padlists
40			(uses less memory and a perl function instead of our own).
41			- coro can now create a stack guard area on many architectures.
42	root	1.134	- Coro::AIO properly reexports additional functions from IO::AIO.
43	root	1.132	- updated libcoro with a workaround for OS X,
44	root	1.134	pach and testing by Michael Schwern.
45	root	1.130
46	root	1.129	2.0 Tue Oct 24 05:47:17 CEST 2006
47	root	1.128	- support additional aio requests in Coro::AIO.
48
49	root	1.129	1.9 (never properly released due to a glitch)
50
51	root	1.127	1.8 Thu Feb 2 00:59:06 CET 2006
52	root	1.125	- applied suggested patch by SAMV to avoid problems during stupid
53			mark & sweep gc run.
54	root	1.126	- applied patch by Scott Walters for 5.9.3 compatibility.
55	root	1.125
56	root	1.124	1.7 Tue Dec 27 01:41:58 CET 2005
57	root	1.123	- added Coro::AIO, a thin wrapper around IO::AIO.
58	root	1.122	- improved Makefile.PL explanations.
59
60	root	1.119	1.6 Mon Dec 12 21:30:05 CET 2005
61	root	1.117	- additionally save PM_curpm might fix as-of-yet
62	root	1.121	unseen problems with regex matches being attributed to the
63	root	1.117	wrong package.
64	root	1.118	- add t/10_bugs.t, which currently checks against imho broken
65			perls that use 0.26MB of stack space per Perl_magic_get
66	root	1.121	invocation (newer linuxes) as opposed to the 0.0002MB perl
67			normally uses.
68	root	1.120	- make stacksize configurable for the ultimate debian experience.
69	root	1.117
70	root	1.116	1.51 Mon Dec 12 18:48:36 CET 2005
71			- remove debugging warn() accidentally left in Coro::Select.
72
73	root	1.115	1.5 Tue Nov 29 13:32:44 CET 2005
74	root	1.114	- use Coro::Event inside Coro::Select to avoid spurious deadlocks.
75	root	1.115	- fix Coro::Select 'select'.
76			- strict'ify some modules.
77	root	1.112	- libcoro errornously restored the SIGUSR2 handler to SIGUSR1.
78	root	1.115	- use XSLoader in selected modules.
79			- remove some 5.6 compatibility cruft.
80	root	1.112
81	root	1.111	1.4 Tue Sep 6 00:11:05 CEST 2005
82			- libcoro did not take into account the trampoline on amd64,
83			when 'l'inux method was used.
84
85	root	1.110	1.31 Tue Aug 30 23:31:33 CEST 2005
86			- some portability fixes/workarounds.
87
88	root	1.107	1.3 Sat Aug 20 03:08:56 CEST 2005
89	root	1.108	- no code changes. module seems to work fine.
90	root	1.106	- improve Coro::State docs, remove reference to nonexisting
91			Coro::State::flush method.
92	root	1.107	- no longer autodetect windows, present it as an option instead.
93	root	1.106
94	root	1.105	1.2 Mon May 16 02:00:55 CEST 2005
95	root	1.100	- included libcoro.c earlier in State.xs, might improve portability.
96	root	1.101	- use a faster and possibly more stable Coro::Cont implementation.
97	root	1.102	- accept x86_64 in addition to amd64 for optimized linux-amd64 support.
98	root	1.104	- fix bugs Coro::SemaphoreSet that could cause locks never to be freed.
99	root	1.105	- fix bugs in CoroAPI.h and document it in Coro::MakeMaker.
100	root	1.100
101	root	1.99	1.11 Thu Mar 3 18:00:52 CET 2005
102			- change of contact address.
103
104	root	1.98	1.1 Tue Feb 22 20:51:16 CET 2005
105	root	1.97	- support [l]inux method on amd64.
106	root	1.109	- allow some context switches while compiling/eval'ing.
107	root	1.97
108	root	1.96	1.0 Tue Aug 10 03:47:27 CEST 2004
109	root	1.95	- Event 0.89 fixes the bug again.
110	root	1.96	- fix the remaining(??) memleak. I didn't free the cache-AV for
111			padlists, so one AV per created anon-sub leaked.
112	root	1.95
113	pcg	1.94	0.97 Fri May 14 15:23:32 CEST 2004
114			- remove stupid gcc extension that was an experiment only anyway.
115
116	pcg	1.93	0.96 Thu May 13 18:09:29 CEST 2004
117	root	1.103	- tell people if they have yet another broken Event variant.
118	pcg	1.91	- made Coro to work _better_ with threads (it seems that, as long
119			as you use Coros in one thread only everything will work fine.
120			Looking at the perl source the problem might be missing locking
121			between Coro and some perl internal routines. That's not easily
122			fixable).
123	pcg	1.92	- (hopefully) got rid of the static xnext inside transfer.
124	pcg	1.91
125	pcg	1.90	0.95 Sun Feb 15 03:20:28 CET 2004
126	pcg	1.86	- removed Coro::State::flush, implemented a new and much
127			faster caching mechanism by attaching magic to the CV.
128	pcg	1.87	- a memleak with (real) closures remains.
129	pcg	1.88	- dramatically reduced size of stacks to 65536 (linux/x86), after
130			observing that even myhttpd never had more than a kilobyte
131			of stack in use (stack is still only physically allocated in
132			pagesize increments for systems suporting mmap).
133	pcg	1.89	- fix for a "cygwin-64" architecture added, proposed by Stefan Traby.
134	pcg	1.90	- fix for threaded perl.
135	pcg	1.86
136	pcg	1.85	0.9 Sun Nov 23 04:32:39 CET 2003
137	pcg	1.84	- fix a few very hard to track down but (of course) stupid
138			memory leaks.
139			- stringify version number to avoid locale problems :(.
140	pcg	1.85	- perl 5.9.0 does not have SvPADBUSY, reported by Scott Walters,
141			hopefully ignoring it "just works".
142	pcg	1.84
143	pcg	1.83	0.8 Wed Nov 5 19:38:40 CET 2003
144			- port to perl5.005_03, but only 5.8.x+ is supported!
145	pcg	1.82	- honor LocalAddr even without LocalPort in Coro::Socket.
146
147	root	1.81	0.7 Tue May 27 03:12:38 CEST 2003
148			- the version jump indicates some level of testing, not gobs
149			of new features.
150	root	1.80	- uh... I found the prompt function in ExtUtils::MakeMaker.
151			Highly correct stuff, that is...
152	root	1.81	- fixed(?) a bug with die's in coroutines causing "panic: top_env".
153			the fix is not well understood by the author, so beware :(.
154	root	1.80
155	root	1.79	0.652 Thu May 8 02:54:46 CEST 2003
156	root	1.76	- Applied patch by Slaven Rezic to set default to "s" on FreeBSD,
157	root	1.78	cause version 4 doesn't have ucontext.
158	root	1.77	- Benjamin Reed reported that setjmp works fine on darwin,
159			so preselect it.
160	root	1.76
161	root	1.75	0.651 Sat Mar 29 15:00:23 CET 2003
162			- fix a bug in Coro::Handle where some bytes could get lost
163			on reading, reported by jason@nichego.net.
164	root	1.74
165	root	1.73	0.65 Sun Mar 23 00:08:26 CET 2003
166	root	1.72	- added a README.linux-glibc.
167			- new module Coro::Select.
168			- also save/restore PL_comppad, fixes segfaults with 5.8.1.
169			(I never claimed that I know what I am doing ;).
170	root	1.73	- set default to setjmp/longjmp on non-x86-linux.
171	root	1.72
172	root	1.71	0.6 Thu Nov 21 11:09:06 CET 2002
173			- made lazy context switching the default.
174			- fixed the bug where SemaphoreSet::guard
175			was the same as timed_guard and timed_guard was missing.
176			- fix a memleak in Coro::Timer.
177			- reclassified context sharing as not experimental.
178
179	root	1.70	0.534 Sun Apr 14 03:05:12 CEST 2002
180	root	1.69	- fixed backspace => tab in header parsing (myhttpd).
181	root	1.70	- added eg/readline, for elmex.
182			- Coro::Event now calls ->start on first call instead of
183			->again, which created wrong timeouts for the first ->next.
184			- fixed a bug where Coro::Socket returned a closed socket instead
185			of nothing on ECONNREFUSED and similar error conditions.
186	root	1.69
187	root	1.68	0.533 Mon Feb 18 18:49:40 CET 2002
188			- adapt to finally working Event-0.85.
189			- fixed buggy event initialization (trapped under windows, but how
190			could it possibly have worked anywhere?)
191
192	root	1.67	0.532 Wed Jan 16 02:45:32 CET 2002
193	root	1.66	- removed the reference to pp_entersub, might work on
194			(some) win32 perls now (testsuite works under cygwin,
195			without Event, which freezes).
196	root	1.65
197	root	1.64	0.531 Mon Dec 10 22:18:44 CET 2001
198	root	1.63	- Fixed a bug in SemaphoreSet::timed_down.
199
200	root	1.64	0.53 Tue Nov 27 21:11:13 CET 2001
201	root	1.60	- some tests for Event.
202	root	1.61	- slightly different internal architecture to get refcnt into the object
203			and not the reference. might fix a few bugs, certainly did introduce
204			new ones.
205			- Coro::Timer (independent of Event).
206	root	1.62	- new timed_wait functions for Coro::Signal, Semaphore, SemaphoreSet.
207	root	1.60
208	root	1.64	0.52 Tue Nov 6 21:36:18 CET 2001
209	root	1.58	- ported to cygwin (trivial).
210			patch by Gerrit P. Haase <gp@familiehaase.de>.
211			- small setjmp code fix by Sullivan.DanielJ@epamail.epa.gov.
212
213	root	1.64	0.51 Thu Nov 1 20:39:01 CET 2001
214	root	1.54	- terminate/cancel now work properly (otherwise termination
215			could cause a "next coroutine is not and contains not..."
216			error.
217	root	1.55	- added Coro::Socket::shutdown.
218	root	1.56	- Coro::Event::loop no is the same as Event::loop.
219			- implemented terminate with args + join.
220	root	1.54
221	root	1.64	0.5 Fri Sep 28 16:15:35 CEST 2001
222	root	1.53	- fixed "print" on a Coro::Handle. The print method worked.
223	root	1.50	- small tweaks (seem to reduce memory consumption a lot)
224			in various modules.
225			- splendid use of "no warnings" scattered throughout.
226	root	1.52	- added Coro::Handle::rbuf, fixed Coro::Handle::fh.
227	root	1.48
228	root	1.47	0.49 Sun Sep 16 02:42:45 CEST 2001
229	root	1.43	- changed some method calls to function calls for speed
230			inside Coro::Handle.
231	root	1.44	- make Coro::Handle use an array instead of a hash for
232			speed reasons.
233			- IRIX mystery solved: it's SGI's NT, after all: "standard, huh?".
234			sjlj and ucontext should now work.
235			- IRIX-specific port for libcoro.
236	root	1.45	- swapped order of accept results to match IO::Socket.
237	root	1.46	- changed getsock/peername to sock/peername to match IO::Socket.
238			- fixed a bug that caused segfault when returning to main task
239			under some circumstances.
240			- other bugfixes.
241	root	1.43
242	root	1.42	0.45 Sun Sep 2 02:54:01 CEST 2001
243	root	1.36	- new method Coro::Handle::timeout.
244			- corrected speling of set...name to get...name in Coro::Socket.
245			- Coro::Socket::accept now returns a Coro::Socket, not a Coro::Handle.
246			- Coro::Handle now supports fileno and FILENO.
247			- added eg/myhttpd, a web server.
248	root	1.37	- Coro::Socket now accepts numeric ports as well as "port(number)"
249			syntax.
250	root	1.38	- moved some scheduling primitives into xs code. more to come.
251	root	1.39	- new simple priority system.
252	root	1.40	- implemented Coro::Event using XS, almost four times faster!
253	root	1.41	- small memory corruption problem fixed (boy that was difficult).
254	root	1.36
255	root	1.35	0.13 Wed Aug 8 16:53:07 CEST 2001
256	root	1.31	- new method Coro::Handle::readline.
257	root	1.34	- added eg/lwp and Coro::Handle::autoflush, to make LWP work.
258			(see eg/lwp on how to make LWP non-blocking).
259	root	1.31	- renamed Coro::Socket::new_inet to new.
260	root	1.32	- added Coro::Util, some utility functions.
261	root	1.33	- die/eval now works better (still get annoying (but true ;)
262			"Callback called exit" messages).
263	root	1.34	- Coro::Handle now supports timeout, and Coro::Socket Timeout.
264			- much better Coro::Socket support.
265	root	1.31
266			0.12 Fri Jul 27 04:19:01 CEST 2001
267	root	1.29	- do not use mmap if neither MAP_ANON nor MAP_ANONYMOUS is defined.
268	root	1.34	- very experimental stack sharing algorithm. not 100% safe but
269	root	1.28	should work well in practise ;)
270	root	1.30	- added Coro::RWLock.
271	root	1.31	- Coro::Specific now works.
272	root	1.28
273			0.11 Tue Jul 24 22:49:21 CEST 2001
274	root	1.27	- added specialized hack for newer and older linux versions (fast).
275			- renamed Coro::Event::IO to Coro::Handle.
276			- new module Coro::Socket.
277
278	root	1.26	0.1 Tue Jul 24 01:47:53 CEST 2001
279	root	1.23	- release candidate 3. A rather new internal structure :(
280	root	1.24	- the great renaming: Damian Conway gave me a suitable replacement
281			for yield.
282	root	1.23	- added Coro/libcoro, a portable coroutine implementation for C
283	root	1.22	(not even perl-dependent!!!), which can be used by Coro::State.
284	root	1.20	- renamed SAVE_DEFSV (on xs-level only) to avoid symbol clash in
285			perl-5.6.
286	root	1.16	- new function Coro::Event::idle.
287			- the idle process is now overriden
288			by default in Coro::Event.
289	root	1.17	- Coro::Channel now enforces the size.
290	root	1.18	- canceling events now works in all cases.
291	root	1.19	- Coro state now include $_ and $@.
292			- yet another bug workaround that I do not really understand :(
293	root	1.21	- new module Coro::Event::IO (very undocumented) to do
294			non-blocking i/o.
295	root	1.25	- performance tuning.
296	root	1.16
297	root	1.15	0.08 Thu Jul 19 06:13:25 CEST 2001
298	root	1.14	- release candidate 2 (new functionality).
299	root	1.13	- add Coro::State::flush function.
300			- transfer now supports a flags value (mostly for speed ATM).
301			- might compile and work in the presence of threads now.
302	root	1.14	- continuations have a saner syntax.
303	root	1.19	- no more memleaks.
304	root	1.13
305	root	1.12	0.07 Tue Jul 17 17:40:18 CEST 2001
306			- release candidate 1 ;)
307			- slightly nicer code.
308			- fixed a scheduling bug in Coro::Event.
309
310	root	1.11	0.06 Tue Jul 17 04:23:24 CEST 2001
311			- ok, I found the showstopper - the same sub must not be
312	root	1.9	re-entered in two different coroutines, otherwise => crash. I
313			see no easy solution to this problem, except by walking the call
314			chaing and saving/restoring the cv's, which is what I do now.
315	root	1.11	- memory leaks still latent, especially at thread termination.
316			- Coro::Event now works (haha).
317	root	1.9
318	root	1.8	0.05 Sun Jul 15 17:32:20 CEST 2001
319			- fixed a few issues in Coro::Event.
320			- I forgot to include Coro::Event in 0.04 :(:(:(
321
322	root	1.7	0.04 Sun Jul 15 05:24:59 CEST 2001
323	root	1.5	- @_ is now properly localized.
324	root	1.4	- Coro::State is now easier subclassable.
325			- Coro::Cont now coroutine-aware.
326			- Coro::Specific is a low-overhead module to create
327			coroutine-specific vars.
328	root	1.6	- Coro::Event provides a simple interface to Event.
329	root	1.4
330	root	1.3	0.03 Fri Jul 13 14:51:52 CEST 2001
331	root	1.4	- transfer() now implemented in XS (beware).
332			- new module Coro::Cont for really faked continuations.
333			- big internal architecture changes: Coro::State is now
334	root	1.3	really low-level and can thus be used to implement other
335	root	1.4	interesting things, While "Coro::" implements a process-like
336			model. Still crude and subject to change.
337	root	1.3	- $_ and $@ are no longer being localized.
338
339	root	1.2	0.02 Tue Jul 10 01:38:17 CEST 2001
340			- implemented "async" attribute.
341			- $_ and $@ are now localized.
342			- added Coro::Channel.
343			- more testcases, still no docs.
344
345	root	1.1	0.01 Tue Jul 3 02:18:41 CEST 2001
346			- original version; copied from Convert::Scalar.
347