[ViewVC] Annotation of: cvs/Coro/Changes

Revision history for Perl extension Coro.

TODO: transfer flags must be per state

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

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

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

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

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

1.9  (never properly released due to a glitch)

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Revision:	1.172
Committed:	Sun Dec 3 22:50:06 2006 UTC (17 years, 5 months ago) by root
Branch:	MAIN
CVS Tags:	rel-3_01
Changes since 1.171:	+3 -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	1.169	TODO: transfer flags must be per state
4
5	root	1.172	3.01 Sun Dec 3 23:47:42 CET 2006
6			- forgot to include Coro::Timer.
7
8	root	1.171	3.0 Sun Dec 3 22:57:25 CET 2006
9	root	1.163	- the "FINALLY COMPLETELY STABLE" release (coming soon:
10			the "FAMOUS LAST WORDS" release).
11	root	1.166	- implement a new stack sharing algorithm, which uses a stack
12			pool (size currently hardcoded).
13	root	1.155	- make stack sharing mandatory (it no longer uses a heuristic).
14	root	1.157	- eval/die no longer cause weird problems under heavy use.
15	root	1.152	- Coro::Event could cause livelocks if it was used but
16	root	1.161	no Coro::Event watchers were used.
17	root	1.167	- Coro::Event now uses asynccheck as prepare does not
18			check for changed watchers.
19	root	1.170	- Coro::Event allows multiple waiting coros and will wake up one
20			per event.
21	root	1.152	- Coro::Event should be cleaner and more efficient now.
22	root	1.165	- new utility function Coro::unblock_sub.
23	root	1.164	- document the sad fact that Event is no longer reentrant.
24	root	1.163	- putting a coroutine into the ready queue twice could under
25			some circumstances lead to stack corruption.
26	root	1.161	- minor incompatibility: subclassing Coro::State is supported
27			directly now without going through a _coro_state member.
28	root	1.156	- state/coro switching is much faster now.
29	root	1.154	- very minor optimisations and code/documentation cleanup.
30	root	1.153	- avoid problems due to compiler inlining.
31	root	1.154	- removed timers from Coro::Timer -> use AnyEvent instead.
32			- replaced Coro::idle coroutine by (cleaner) idle handler.
33	root	1.156	- updated to newest libcoro.
34	root	1.159	- implement enhanced support for valgrind.
35	root	1.162	- implement is_ready and return value for ready.
36	root	1.168	- removed Coro::Cont, it was a misnomer (it's generators),
37			and it was somewhat annoying to get it right. Will come back
38			if somebody asks for it :)
39	root	1.163	- many ->wait methods and Coro::Event could return
40			spuriously without the event having happened.
41	root	1.146
42	root	1.145	2.5 Tue Nov 7 12:22:33 CET 2006
43	root	1.143	- made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
44			use AnyEvent, moved them to Coro/.
45	root	1.140	- added Coro::LWP which contains all the uglyness required to
46			make LWP non-blocking.
47			- should work with perl 5.9.x now (Andreas König made me do it).
48	root	1.141	- fixed another bug in Coro::Select when the timeout was undef.
49	root	1.136	- reuse PL_start_env for all coros, saves some memory per coroutine.
50			- manage PL_top_env differently, hopefully to avoid panic: top_env.
51	root	1.137	- timeout argument was not properly used in Coro::Socket.
52			- allow limited forms of subclassing in Coro::Handle/Coro::Socket.
53	root	1.138	- emulate undocumented(!) functionality of IO::Socket required
54			by LWP(!!).
55			- updated eg/lwp to work with newer lwp's.
56	root	1.140	- remove "FATAL: uncaught exception" prefix. Coroutines that die
57			kill the whole process, just as exceptions in the main "coroutine"
58			did already.
59	root	1.135
60	root	1.134	2.1 Wed Nov 1 23:01:13 CET 2006
61			- fix a long-standing bug in Coro::Select where select with
62			zero timeout would instead change the current default filehandle.
63	root	1.132	- use a simpler and hopefully more robust way to clone padlists
64			(uses less memory and a perl function instead of our own).
65			- coro can now create a stack guard area on many architectures.
66	root	1.134	- Coro::AIO properly reexports additional functions from IO::AIO.
67	root	1.132	- updated libcoro with a workaround for OS X,
68	root	1.134	pach and testing by Michael Schwern.
69	root	1.130
70	root	1.129	2.0 Tue Oct 24 05:47:17 CEST 2006
71	root	1.128	- support additional aio requests in Coro::AIO.
72
73	root	1.129	1.9 (never properly released due to a glitch)
74
75	root	1.127	1.8 Thu Feb 2 00:59:06 CET 2006
76	root	1.125	- applied suggested patch by SAMV to avoid problems during stupid
77			mark & sweep gc run.
78	root	1.126	- applied patch by Scott Walters for 5.9.3 compatibility.
79	root	1.125
80	root	1.124	1.7 Tue Dec 27 01:41:58 CET 2005
81	root	1.123	- added Coro::AIO, a thin wrapper around IO::AIO.
82	root	1.122	- improved Makefile.PL explanations.
83
84	root	1.119	1.6 Mon Dec 12 21:30:05 CET 2005
85	root	1.117	- additionally save PM_curpm might fix as-of-yet
86	root	1.121	unseen problems with regex matches being attributed to the
87	root	1.117	wrong package.
88	root	1.118	- add t/10_bugs.t, which currently checks against imho broken
89			perls that use 0.26MB of stack space per Perl_magic_get
90	root	1.121	invocation (newer linuxes) as opposed to the 0.0002MB perl
91			normally uses.
92	root	1.120	- make stacksize configurable for the ultimate debian experience.
93	root	1.117
94	root	1.116	1.51 Mon Dec 12 18:48:36 CET 2005
95			- remove debugging warn() accidentally left in Coro::Select.
96
97	root	1.115	1.5 Tue Nov 29 13:32:44 CET 2005
98	root	1.114	- use Coro::Event inside Coro::Select to avoid spurious deadlocks.
99	root	1.115	- fix Coro::Select 'select'.
100			- strict'ify some modules.
101	root	1.112	- libcoro errornously restored the SIGUSR2 handler to SIGUSR1.
102	root	1.115	- use XSLoader in selected modules.
103			- remove some 5.6 compatibility cruft.
104	root	1.112
105	root	1.111	1.4 Tue Sep 6 00:11:05 CEST 2005
106			- libcoro did not take into account the trampoline on amd64,
107			when 'l'inux method was used.
108
109	root	1.110	1.31 Tue Aug 30 23:31:33 CEST 2005
110			- some portability fixes/workarounds.
111
112	root	1.107	1.3 Sat Aug 20 03:08:56 CEST 2005
113	root	1.108	- no code changes. module seems to work fine.
114	root	1.106	- improve Coro::State docs, remove reference to nonexisting
115			Coro::State::flush method.
116	root	1.107	- no longer autodetect windows, present it as an option instead.
117	root	1.106
118	root	1.105	1.2 Mon May 16 02:00:55 CEST 2005
119	root	1.100	- included libcoro.c earlier in State.xs, might improve portability.
120	root	1.101	- use a faster and possibly more stable Coro::Cont implementation.
121	root	1.102	- accept x86_64 in addition to amd64 for optimized linux-amd64 support.
122	root	1.104	- fix bugs Coro::SemaphoreSet that could cause locks never to be freed.
123	root	1.105	- fix bugs in CoroAPI.h and document it in Coro::MakeMaker.
124	root	1.100
125	root	1.99	1.11 Thu Mar 3 18:00:52 CET 2005
126			- change of contact address.
127
128	root	1.98	1.1 Tue Feb 22 20:51:16 CET 2005
129	root	1.97	- support [l]inux method on amd64.
130	root	1.109	- allow some context switches while compiling/eval'ing.
131	root	1.97
132	root	1.96	1.0 Tue Aug 10 03:47:27 CEST 2004
133	root	1.95	- Event 0.89 fixes the bug again.
134	root	1.96	- fix the remaining(??) memleak. I didn't free the cache-AV for
135			padlists, so one AV per created anon-sub leaked.
136	root	1.95
137	pcg	1.94	0.97 Fri May 14 15:23:32 CEST 2004
138			- remove stupid gcc extension that was an experiment only anyway.
139
140	pcg	1.93	0.96 Thu May 13 18:09:29 CEST 2004
141	root	1.103	- tell people if they have yet another broken Event variant.
142	pcg	1.91	- made Coro to work _better_ with threads (it seems that, as long
143			as you use Coros in one thread only everything will work fine.
144			Looking at the perl source the problem might be missing locking
145			between Coro and some perl internal routines. That's not easily
146			fixable).
147	pcg	1.92	- (hopefully) got rid of the static xnext inside transfer.
148	pcg	1.91
149	pcg	1.90	0.95 Sun Feb 15 03:20:28 CET 2004
150	pcg	1.86	- removed Coro::State::flush, implemented a new and much
151			faster caching mechanism by attaching magic to the CV.
152	pcg	1.87	- a memleak with (real) closures remains.
153	pcg	1.88	- dramatically reduced size of stacks to 65536 (linux/x86), after
154			observing that even myhttpd never had more than a kilobyte
155			of stack in use (stack is still only physically allocated in
156			pagesize increments for systems suporting mmap).
157	pcg	1.89	- fix for a "cygwin-64" architecture added, proposed by Stefan Traby.
158	pcg	1.90	- fix for threaded perl.
159	pcg	1.86
160	pcg	1.85	0.9 Sun Nov 23 04:32:39 CET 2003
161	pcg	1.84	- fix a few very hard to track down but (of course) stupid
162			memory leaks.
163			- stringify version number to avoid locale problems :(.
164	pcg	1.85	- perl 5.9.0 does not have SvPADBUSY, reported by Scott Walters,
165			hopefully ignoring it "just works".
166	pcg	1.84
167	pcg	1.83	0.8 Wed Nov 5 19:38:40 CET 2003
168			- port to perl5.005_03, but only 5.8.x+ is supported!
169	pcg	1.82	- honor LocalAddr even without LocalPort in Coro::Socket.
170
171	root	1.81	0.7 Tue May 27 03:12:38 CEST 2003
172			- the version jump indicates some level of testing, not gobs
173			of new features.
174	root	1.80	- uh... I found the prompt function in ExtUtils::MakeMaker.
175			Highly correct stuff, that is...
176	root	1.81	- fixed(?) a bug with die's in coroutines causing "panic: top_env".
177			the fix is not well understood by the author, so beware :(.
178	root	1.80
179	root	1.79	0.652 Thu May 8 02:54:46 CEST 2003
180	root	1.76	- Applied patch by Slaven Rezic to set default to "s" on FreeBSD,
181	root	1.78	cause version 4 doesn't have ucontext.
182	root	1.77	- Benjamin Reed reported that setjmp works fine on darwin,
183			so preselect it.
184	root	1.76
185	root	1.75	0.651 Sat Mar 29 15:00:23 CET 2003
186			- fix a bug in Coro::Handle where some bytes could get lost
187			on reading, reported by jason@nichego.net.
188	root	1.74
189	root	1.73	0.65 Sun Mar 23 00:08:26 CET 2003
190	root	1.72	- added a README.linux-glibc.
191			- new module Coro::Select.
192			- also save/restore PL_comppad, fixes segfaults with 5.8.1.
193			(I never claimed that I know what I am doing ;).
194	root	1.73	- set default to setjmp/longjmp on non-x86-linux.
195	root	1.72
196	root	1.71	0.6 Thu Nov 21 11:09:06 CET 2002
197			- made lazy context switching the default.
198			- fixed the bug where SemaphoreSet::guard
199			was the same as timed_guard and timed_guard was missing.
200			- fix a memleak in Coro::Timer.
201			- reclassified context sharing as not experimental.
202
203	root	1.70	0.534 Sun Apr 14 03:05:12 CEST 2002
204	root	1.69	- fixed backspace => tab in header parsing (myhttpd).
205	root	1.70	- added eg/readline, for elmex.
206			- Coro::Event now calls ->start on first call instead of
207			->again, which created wrong timeouts for the first ->next.
208			- fixed a bug where Coro::Socket returned a closed socket instead
209			of nothing on ECONNREFUSED and similar error conditions.
210	root	1.69
211	root	1.68	0.533 Mon Feb 18 18:49:40 CET 2002
212			- adapt to finally working Event-0.85.
213			- fixed buggy event initialization (trapped under windows, but how
214			could it possibly have worked anywhere?)
215
216	root	1.67	0.532 Wed Jan 16 02:45:32 CET 2002
217	root	1.66	- removed the reference to pp_entersub, might work on
218			(some) win32 perls now (testsuite works under cygwin,
219			without Event, which freezes).
220	root	1.65
221	root	1.64	0.531 Mon Dec 10 22:18:44 CET 2001
222	root	1.63	- Fixed a bug in SemaphoreSet::timed_down.
223
224	root	1.64	0.53 Tue Nov 27 21:11:13 CET 2001
225	root	1.60	- some tests for Event.
226	root	1.61	- slightly different internal architecture to get refcnt into the object
227			and not the reference. might fix a few bugs, certainly did introduce
228			new ones.
229			- Coro::Timer (independent of Event).
230	root	1.62	- new timed_wait functions for Coro::Signal, Semaphore, SemaphoreSet.
231	root	1.60
232	root	1.64	0.52 Tue Nov 6 21:36:18 CET 2001
233	root	1.58	- ported to cygwin (trivial).
234			patch by Gerrit P. Haase <gp@familiehaase.de>.
235			- small setjmp code fix by Sullivan.DanielJ@epamail.epa.gov.
236
237	root	1.64	0.51 Thu Nov 1 20:39:01 CET 2001
238	root	1.54	- terminate/cancel now work properly (otherwise termination
239			could cause a "next coroutine is not and contains not..."
240			error.
241	root	1.55	- added Coro::Socket::shutdown.
242	root	1.56	- Coro::Event::loop no is the same as Event::loop.
243			- implemented terminate with args + join.
244	root	1.54
245	root	1.64	0.5 Fri Sep 28 16:15:35 CEST 2001
246	root	1.53	- fixed "print" on a Coro::Handle. The print method worked.
247	root	1.50	- small tweaks (seem to reduce memory consumption a lot)
248			in various modules.
249			- splendid use of "no warnings" scattered throughout.
250	root	1.52	- added Coro::Handle::rbuf, fixed Coro::Handle::fh.
251	root	1.48
252	root	1.47	0.49 Sun Sep 16 02:42:45 CEST 2001
253	root	1.43	- changed some method calls to function calls for speed
254			inside Coro::Handle.
255	root	1.44	- make Coro::Handle use an array instead of a hash for
256			speed reasons.
257			- IRIX mystery solved: it's SGI's NT, after all: "standard, huh?".
258			sjlj and ucontext should now work.
259			- IRIX-specific port for libcoro.
260	root	1.45	- swapped order of accept results to match IO::Socket.
261	root	1.46	- changed getsock/peername to sock/peername to match IO::Socket.
262			- fixed a bug that caused segfault when returning to main task
263			under some circumstances.
264			- other bugfixes.
265	root	1.43
266	root	1.42	0.45 Sun Sep 2 02:54:01 CEST 2001
267	root	1.36	- new method Coro::Handle::timeout.
268			- corrected speling of set...name to get...name in Coro::Socket.
269			- Coro::Socket::accept now returns a Coro::Socket, not a Coro::Handle.
270			- Coro::Handle now supports fileno and FILENO.
271			- added eg/myhttpd, a web server.
272	root	1.37	- Coro::Socket now accepts numeric ports as well as "port(number)"
273			syntax.
274	root	1.38	- moved some scheduling primitives into xs code. more to come.
275	root	1.39	- new simple priority system.
276	root	1.40	- implemented Coro::Event using XS, almost four times faster!
277	root	1.41	- small memory corruption problem fixed (boy that was difficult).
278	root	1.36
279	root	1.35	0.13 Wed Aug 8 16:53:07 CEST 2001
280	root	1.31	- new method Coro::Handle::readline.
281	root	1.34	- added eg/lwp and Coro::Handle::autoflush, to make LWP work.
282			(see eg/lwp on how to make LWP non-blocking).
283	root	1.31	- renamed Coro::Socket::new_inet to new.
284	root	1.32	- added Coro::Util, some utility functions.
285	root	1.33	- die/eval now works better (still get annoying (but true ;)
286			"Callback called exit" messages).
287	root	1.34	- Coro::Handle now supports timeout, and Coro::Socket Timeout.
288			- much better Coro::Socket support.
289	root	1.31
290			0.12 Fri Jul 27 04:19:01 CEST 2001
291	root	1.29	- do not use mmap if neither MAP_ANON nor MAP_ANONYMOUS is defined.
292	root	1.34	- very experimental stack sharing algorithm. not 100% safe but
293	root	1.28	should work well in practise ;)
294	root	1.30	- added Coro::RWLock.
295	root	1.31	- Coro::Specific now works.
296	root	1.28
297			0.11 Tue Jul 24 22:49:21 CEST 2001
298	root	1.27	- added specialized hack for newer and older linux versions (fast).
299			- renamed Coro::Event::IO to Coro::Handle.
300			- new module Coro::Socket.
301
302	root	1.26	0.1 Tue Jul 24 01:47:53 CEST 2001
303	root	1.23	- release candidate 3. A rather new internal structure :(
304	root	1.24	- the great renaming: Damian Conway gave me a suitable replacement
305			for yield.
306	root	1.23	- added Coro/libcoro, a portable coroutine implementation for C
307	root	1.22	(not even perl-dependent!!!), which can be used by Coro::State.
308	root	1.20	- renamed SAVE_DEFSV (on xs-level only) to avoid symbol clash in
309			perl-5.6.
310	root	1.16	- new function Coro::Event::idle.
311			- the idle process is now overriden
312			by default in Coro::Event.
313	root	1.17	- Coro::Channel now enforces the size.
314	root	1.18	- canceling events now works in all cases.
315	root	1.19	- Coro state now include $_ and $@.
316			- yet another bug workaround that I do not really understand :(
317	root	1.21	- new module Coro::Event::IO (very undocumented) to do
318			non-blocking i/o.
319	root	1.25	- performance tuning.
320	root	1.16
321	root	1.15	0.08 Thu Jul 19 06:13:25 CEST 2001
322	root	1.14	- release candidate 2 (new functionality).
323	root	1.13	- add Coro::State::flush function.
324			- transfer now supports a flags value (mostly for speed ATM).
325			- might compile and work in the presence of threads now.
326	root	1.14	- continuations have a saner syntax.
327	root	1.19	- no more memleaks.
328	root	1.13
329	root	1.12	0.07 Tue Jul 17 17:40:18 CEST 2001
330			- release candidate 1 ;)
331			- slightly nicer code.
332			- fixed a scheduling bug in Coro::Event.
333
334	root	1.11	0.06 Tue Jul 17 04:23:24 CEST 2001
335			- ok, I found the showstopper - the same sub must not be
336	root	1.9	re-entered in two different coroutines, otherwise => crash. I
337			see no easy solution to this problem, except by walking the call
338			chaing and saving/restoring the cv's, which is what I do now.
339	root	1.11	- memory leaks still latent, especially at thread termination.
340			- Coro::Event now works (haha).
341	root	1.9
342	root	1.8	0.05 Sun Jul 15 17:32:20 CEST 2001
343			- fixed a few issues in Coro::Event.
344			- I forgot to include Coro::Event in 0.04 :(:(:(
345
346	root	1.7	0.04 Sun Jul 15 05:24:59 CEST 2001
347	root	1.5	- @_ is now properly localized.
348	root	1.4	- Coro::State is now easier subclassable.
349			- Coro::Cont now coroutine-aware.
350			- Coro::Specific is a low-overhead module to create
351			coroutine-specific vars.
352	root	1.6	- Coro::Event provides a simple interface to Event.
353	root	1.4
354	root	1.3	0.03 Fri Jul 13 14:51:52 CEST 2001
355	root	1.4	- transfer() now implemented in XS (beware).
356			- new module Coro::Cont for really faked continuations.
357			- big internal architecture changes: Coro::State is now
358	root	1.3	really low-level and can thus be used to implement other
359	root	1.4	interesting things, While "Coro::" implements a process-like
360			model. Still crude and subject to change.
361	root	1.3	- $_ and $@ are no longer being localized.
362
363	root	1.2	0.02 Tue Jul 10 01:38:17 CEST 2001
364			- implemented "async" attribute.
365			- $_ and $@ are now localized.
366			- added Coro::Channel.
367			- more testcases, still no docs.
368
369	root	1.1	0.01 Tue Jul 3 02:18:41 CEST 2001
370			- original version; copied from Convert::Scalar.
371