[ViewVC] Annotation of: cvs/Coro/Changes

Revision history for Perl extension Coro.

TODO: better (earlier) error messages on broken transfer's
TODO: destroy gets only called on cancel: fix(?)
TODO: fast reloads in cf cause segfaults (coro_state_free->destroy->crash)

3.41 Mon Jan 22 19:19:49 CET 2007
        - readline on Coro::Handle did not support undefined $/,
          nor did it deliver partial lines on EOF or error.
        - implement malloc fallback for stack allocation because
          stupid broken idiotic OSX has a stupid broken
          idiotic fits-the-whole-os mmap "implementation" and
          my dick feels longer if Coro is portable even to
          obsolete platforms.

3.4  Fri Jan 19 21:52:54 CET 2007
        - remove t/09_timer.t, as it isn't really testing much
          but was rather flaky in practise.
        - async_pool coro would keep arguments and callback alive until
          it was reused.
        - cancellation of a coroutine could cause spurious idle calls
          in cede_notself.

3.3  Sat Jan  6 03:45:00 CET 2007
        - implement $coro->on_destroy.
        - Coro::Event blocking semantics have been changed,
          documented and - hopefully - improved.
        - fix nice adding, not subtracting, from priority.
        - fix ->prio and api_is_ready (patch by Mark Hinds).
        - fixed an assert ("... == prev__cctx->idle_te")
          that could errronously trigger.
        - fix various large and small memleaks.
        - use a (hopefully) more stable cancel implementation
          that immediately frees the coroutine data.
        - cede/cede_notself return a status now.
        - added Coro::guard function.
        - added a global coroutine pool for jobs (on my machine,
          I can create and execute 48k simple coros/s with async,
          and 128k coros with async_pool).
        - Coro::AIO now uses the coroutine priority as io priority.

3.2  Fri Dec 22 05:07:09 CET 2006
        - improve portability to slightly older perls.
        - use cleaner coroutine destruction.
        - simplify configuration for users.
        - optionally (unrecommended) prefer perl functions over
          their coro replacements.

3.11 Tue Dec  5 13:11:24 CET 2006
        - fixed some bogus assert's, but as perl.h disables assert even
          without NDEBUG (thank you very much), not too many people should
          notice (that did include myself). Andreas König noticed, though :)
        - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
          it. Also noticed by Andreas König :)
        - save/restore tainted status.
        - verified to pass the testsuite on my 5.9.5.

3.1  Mon Dec  4 23:03:40 CET 2006
        - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
        - incompatible change: transfer flags are now per-state.
        - give a better error message on deadlock.
        - document Coro::nready.
        - enhanced testsuite.

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

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

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

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

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

1.9  (never properly released due to a glitch)

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Revision:	1.203
Committed:	Mon Jan 22 18:45:17 2007 UTC (17 years, 4 months ago) by root
Branch:	MAIN
CVS Tags:	rel-3_41
Changes since 1.202:	+6 -1 lines
Log Message:	* empty log message *
#	User	Rev	Content
1	root	1.1	Revision history for Perl extension Coro.
2	root	1.113
3	root	1.173	TODO: better (earlier) error messages on broken transfer's
4	root	1.191	TODO: destroy gets only called on cancel: fix(?)
5	root	1.200	TODO: fast reloads in cf cause segfaults (coro_state_free->destroy->crash)
6	root	1.173
7	root	1.203	3.41 Mon Jan 22 19:19:49 CET 2007
8	root	1.202	- readline on Coro::Handle did not support undefined $/,
9			nor did it deliver partial lines on EOF or error.
10	root	1.203	- implement malloc fallback for stack allocation because
11			stupid broken idiotic OSX has a stupid broken
12			idiotic fits-the-whole-os mmap "implementation" and
13			my dick feels longer if Coro is portable even to
14			obsolete platforms.
15	root	1.202
16	root	1.201	3.4 Fri Jan 19 21:52:54 CET 2007
17	root	1.197	- remove t/09_timer.t, as it isn't really testing much
18			but was rather flaky in practise.
19	root	1.198	- async_pool coro would keep arguments and callback alive until
20			it was reused.
21	root	1.199	- cancellation of a coroutine could cause spurious idle calls
22			in cede_notself.
23	root	1.197
24	root	1.196	3.3 Sat Jan 6 03:45:00 CET 2007
25	root	1.187	- implement $coro->on_destroy.
26	root	1.188	- Coro::Event blocking semantics have been changed,
27			documented and - hopefully - improved.
28	root	1.184	- fix nice adding, not subtracting, from priority.
29	root	1.185	- fix ->prio and api_is_ready (patch by Mark Hinds).
30	root	1.190	- fixed an assert ("... == prev__cctx->idle_te")
31			that could errronously trigger.
32	root	1.192	- fix various large and small memleaks.
33	root	1.191	- use a (hopefully) more stable cancel implementation
34			that immediately frees the coroutine data.
35	root	1.194	- cede/cede_notself return a status now.
36	root	1.191	- added Coro::guard function.
37	root	1.193	- added a global coroutine pool for jobs (on my machine,
38			I can create and execute 48k simple coros/s with async,
39			and 128k coros with async_pool).
40	root	1.195	- Coro::AIO now uses the coroutine priority as io priority.
41	root	1.184
42	root	1.183	3.2 Fri Dec 22 05:07:09 CET 2006
43	root	1.179	- improve portability to slightly older perls.
44	root	1.180	- use cleaner coroutine destruction.
45	root	1.182	- simplify configuration for users.
46			- optionally (unrecommended) prefer perl functions over
47			their coro replacements.
48	root	1.179
49	root	1.178	3.11 Tue Dec 5 13:11:24 CET 2006
50			- fixed some bogus assert's, but as perl.h disables assert even
51			without NDEBUG (thank you very much), not too many people should
52			notice (that did include myself). Andreas König noticed, though :)
53			- do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
54			it. Also noticed by Andreas König :)
55			- save/restore tainted status.
56			- verified to pass the testsuite on my 5.9.5.
57
58	root	1.177	3.1 Mon Dec 4 23:03:40 CET 2006
59			- INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
60	root	1.175	- incompatible change: transfer flags are now per-state.
61	root	1.173	- give a better error message on deadlock.
62	root	1.175	- document Coro::nready.
63	root	1.174	- enhanced testsuite.
64	root	1.169
65	root	1.172	3.01 Sun Dec 3 23:47:42 CET 2006
66			- forgot to include Coro::Timer.
67
68	root	1.171	3.0 Sun Dec 3 22:57:25 CET 2006
69	root	1.163	- the "FINALLY COMPLETELY STABLE" release (coming soon:
70			the "FAMOUS LAST WORDS" release).
71	root	1.166	- implement a new stack sharing algorithm, which uses a stack
72			pool (size currently hardcoded).
73	root	1.155	- make stack sharing mandatory (it no longer uses a heuristic).
74	root	1.157	- eval/die no longer cause weird problems under heavy use.
75	root	1.152	- Coro::Event could cause livelocks if it was used but
76	root	1.161	no Coro::Event watchers were used.
77	root	1.167	- Coro::Event now uses asynccheck as prepare does not
78			check for changed watchers.
79	root	1.170	- Coro::Event allows multiple waiting coros and will wake up one
80			per event.
81	root	1.152	- Coro::Event should be cleaner and more efficient now.
82	root	1.165	- new utility function Coro::unblock_sub.
83	root	1.164	- document the sad fact that Event is no longer reentrant.
84	root	1.163	- putting a coroutine into the ready queue twice could under
85			some circumstances lead to stack corruption.
86	root	1.161	- minor incompatibility: subclassing Coro::State is supported
87			directly now without going through a _coro_state member.
88	root	1.156	- state/coro switching is much faster now.
89	root	1.154	- very minor optimisations and code/documentation cleanup.
90	root	1.153	- avoid problems due to compiler inlining.
91	root	1.154	- removed timers from Coro::Timer -> use AnyEvent instead.
92			- replaced Coro::idle coroutine by (cleaner) idle handler.
93	root	1.156	- updated to newest libcoro.
94	root	1.159	- implement enhanced support for valgrind.
95	root	1.162	- implement is_ready and return value for ready.
96	root	1.168	- removed Coro::Cont, it was a misnomer (it's generators),
97			and it was somewhat annoying to get it right. Will come back
98			if somebody asks for it :)
99	root	1.163	- many ->wait methods and Coro::Event could return
100			spuriously without the event having happened.
101	root	1.146
102	root	1.145	2.5 Tue Nov 7 12:22:33 CET 2006
103	root	1.143	- made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
104			use AnyEvent, moved them to Coro/.
105	root	1.140	- added Coro::LWP which contains all the uglyness required to
106			make LWP non-blocking.
107			- should work with perl 5.9.x now (Andreas König made me do it).
108	root	1.141	- fixed another bug in Coro::Select when the timeout was undef.
109	root	1.136	- reuse PL_start_env for all coros, saves some memory per coroutine.
110			- manage PL_top_env differently, hopefully to avoid panic: top_env.
111	root	1.137	- timeout argument was not properly used in Coro::Socket.
112			- allow limited forms of subclassing in Coro::Handle/Coro::Socket.
113	root	1.138	- emulate undocumented(!) functionality of IO::Socket required
114			by LWP(!!).
115			- updated eg/lwp to work with newer lwp's.
116	root	1.140	- remove "FATAL: uncaught exception" prefix. Coroutines that die
117			kill the whole process, just as exceptions in the main "coroutine"
118			did already.
119	root	1.135
120	root	1.134	2.1 Wed Nov 1 23:01:13 CET 2006
121			- fix a long-standing bug in Coro::Select where select with
122			zero timeout would instead change the current default filehandle.
123	root	1.132	- use a simpler and hopefully more robust way to clone padlists
124			(uses less memory and a perl function instead of our own).
125			- coro can now create a stack guard area on many architectures.
126	root	1.134	- Coro::AIO properly reexports additional functions from IO::AIO.
127	root	1.132	- updated libcoro with a workaround for OS X,
128	root	1.134	pach and testing by Michael Schwern.
129	root	1.130
130	root	1.129	2.0 Tue Oct 24 05:47:17 CEST 2006
131	root	1.128	- support additional aio requests in Coro::AIO.
132
133	root	1.129	1.9 (never properly released due to a glitch)
134
135	root	1.127	1.8 Thu Feb 2 00:59:06 CET 2006
136	root	1.125	- applied suggested patch by SAMV to avoid problems during stupid
137			mark & sweep gc run.
138	root	1.126	- applied patch by Scott Walters for 5.9.3 compatibility.
139	root	1.125
140	root	1.124	1.7 Tue Dec 27 01:41:58 CET 2005
141	root	1.123	- added Coro::AIO, a thin wrapper around IO::AIO.
142	root	1.122	- improved Makefile.PL explanations.
143
144	root	1.119	1.6 Mon Dec 12 21:30:05 CET 2005
145	root	1.117	- additionally save PM_curpm might fix as-of-yet
146	root	1.121	unseen problems with regex matches being attributed to the
147	root	1.117	wrong package.
148	root	1.118	- add t/10_bugs.t, which currently checks against imho broken
149			perls that use 0.26MB of stack space per Perl_magic_get
150	root	1.121	invocation (newer linuxes) as opposed to the 0.0002MB perl
151			normally uses.
152	root	1.120	- make stacksize configurable for the ultimate debian experience.
153	root	1.117
154	root	1.116	1.51 Mon Dec 12 18:48:36 CET 2005
155			- remove debugging warn() accidentally left in Coro::Select.
156
157	root	1.115	1.5 Tue Nov 29 13:32:44 CET 2005
158	root	1.114	- use Coro::Event inside Coro::Select to avoid spurious deadlocks.
159	root	1.115	- fix Coro::Select 'select'.
160			- strict'ify some modules.
161	root	1.112	- libcoro errornously restored the SIGUSR2 handler to SIGUSR1.
162	root	1.115	- use XSLoader in selected modules.
163			- remove some 5.6 compatibility cruft.
164	root	1.112
165	root	1.111	1.4 Tue Sep 6 00:11:05 CEST 2005
166			- libcoro did not take into account the trampoline on amd64,
167			when 'l'inux method was used.
168
169	root	1.110	1.31 Tue Aug 30 23:31:33 CEST 2005
170			- some portability fixes/workarounds.
171
172	root	1.107	1.3 Sat Aug 20 03:08:56 CEST 2005
173	root	1.108	- no code changes. module seems to work fine.
174	root	1.106	- improve Coro::State docs, remove reference to nonexisting
175			Coro::State::flush method.
176	root	1.107	- no longer autodetect windows, present it as an option instead.
177	root	1.106
178	root	1.105	1.2 Mon May 16 02:00:55 CEST 2005
179	root	1.100	- included libcoro.c earlier in State.xs, might improve portability.
180	root	1.101	- use a faster and possibly more stable Coro::Cont implementation.
181	root	1.102	- accept x86_64 in addition to amd64 for optimized linux-amd64 support.
182	root	1.104	- fix bugs Coro::SemaphoreSet that could cause locks never to be freed.
183	root	1.105	- fix bugs in CoroAPI.h and document it in Coro::MakeMaker.
184	root	1.100
185	root	1.99	1.11 Thu Mar 3 18:00:52 CET 2005
186			- change of contact address.
187
188	root	1.98	1.1 Tue Feb 22 20:51:16 CET 2005
189	root	1.97	- support [l]inux method on amd64.
190	root	1.109	- allow some context switches while compiling/eval'ing.
191	root	1.97
192	root	1.96	1.0 Tue Aug 10 03:47:27 CEST 2004
193	root	1.95	- Event 0.89 fixes the bug again.
194	root	1.96	- fix the remaining(??) memleak. I didn't free the cache-AV for
195			padlists, so one AV per created anon-sub leaked.
196	root	1.95
197	pcg	1.94	0.97 Fri May 14 15:23:32 CEST 2004
198			- remove stupid gcc extension that was an experiment only anyway.
199
200	pcg	1.93	0.96 Thu May 13 18:09:29 CEST 2004
201	root	1.103	- tell people if they have yet another broken Event variant.
202	pcg	1.91	- made Coro to work _better_ with threads (it seems that, as long
203			as you use Coros in one thread only everything will work fine.
204			Looking at the perl source the problem might be missing locking
205			between Coro and some perl internal routines. That's not easily
206			fixable).
207	pcg	1.92	- (hopefully) got rid of the static xnext inside transfer.
208	pcg	1.91
209	pcg	1.90	0.95 Sun Feb 15 03:20:28 CET 2004
210	pcg	1.86	- removed Coro::State::flush, implemented a new and much
211			faster caching mechanism by attaching magic to the CV.
212	pcg	1.87	- a memleak with (real) closures remains.
213	pcg	1.88	- dramatically reduced size of stacks to 65536 (linux/x86), after
214			observing that even myhttpd never had more than a kilobyte
215			of stack in use (stack is still only physically allocated in
216			pagesize increments for systems suporting mmap).
217	pcg	1.89	- fix for a "cygwin-64" architecture added, proposed by Stefan Traby.
218	pcg	1.90	- fix for threaded perl.
219	pcg	1.86
220	pcg	1.85	0.9 Sun Nov 23 04:32:39 CET 2003
221	pcg	1.84	- fix a few very hard to track down but (of course) stupid
222			memory leaks.
223			- stringify version number to avoid locale problems :(.
224	pcg	1.85	- perl 5.9.0 does not have SvPADBUSY, reported by Scott Walters,
225			hopefully ignoring it "just works".
226	pcg	1.84
227	pcg	1.83	0.8 Wed Nov 5 19:38:40 CET 2003
228			- port to perl5.005_03, but only 5.8.x+ is supported!
229	pcg	1.82	- honor LocalAddr even without LocalPort in Coro::Socket.
230
231	root	1.81	0.7 Tue May 27 03:12:38 CEST 2003
232			- the version jump indicates some level of testing, not gobs
233			of new features.
234	root	1.80	- uh... I found the prompt function in ExtUtils::MakeMaker.
235			Highly correct stuff, that is...
236	root	1.81	- fixed(?) a bug with die's in coroutines causing "panic: top_env".
237			the fix is not well understood by the author, so beware :(.
238	root	1.80
239	root	1.79	0.652 Thu May 8 02:54:46 CEST 2003
240	root	1.76	- Applied patch by Slaven Rezic to set default to "s" on FreeBSD,
241	root	1.78	cause version 4 doesn't have ucontext.
242	root	1.77	- Benjamin Reed reported that setjmp works fine on darwin,
243			so preselect it.
244	root	1.76
245	root	1.75	0.651 Sat Mar 29 15:00:23 CET 2003
246			- fix a bug in Coro::Handle where some bytes could get lost
247			on reading, reported by jason@nichego.net.
248	root	1.74
249	root	1.73	0.65 Sun Mar 23 00:08:26 CET 2003
250	root	1.72	- added a README.linux-glibc.
251			- new module Coro::Select.
252			- also save/restore PL_comppad, fixes segfaults with 5.8.1.
253			(I never claimed that I know what I am doing ;).
254	root	1.73	- set default to setjmp/longjmp on non-x86-linux.
255	root	1.72
256	root	1.71	0.6 Thu Nov 21 11:09:06 CET 2002
257			- made lazy context switching the default.
258			- fixed the bug where SemaphoreSet::guard
259			was the same as timed_guard and timed_guard was missing.
260			- fix a memleak in Coro::Timer.
261			- reclassified context sharing as not experimental.
262
263	root	1.70	0.534 Sun Apr 14 03:05:12 CEST 2002
264	root	1.69	- fixed backspace => tab in header parsing (myhttpd).
265	root	1.70	- added eg/readline, for elmex.
266			- Coro::Event now calls ->start on first call instead of
267			->again, which created wrong timeouts for the first ->next.
268			- fixed a bug where Coro::Socket returned a closed socket instead
269			of nothing on ECONNREFUSED and similar error conditions.
270	root	1.69
271	root	1.68	0.533 Mon Feb 18 18:49:40 CET 2002
272			- adapt to finally working Event-0.85.
273			- fixed buggy event initialization (trapped under windows, but how
274			could it possibly have worked anywhere?)
275
276	root	1.67	0.532 Wed Jan 16 02:45:32 CET 2002
277	root	1.66	- removed the reference to pp_entersub, might work on
278			(some) win32 perls now (testsuite works under cygwin,
279			without Event, which freezes).
280	root	1.65
281	root	1.64	0.531 Mon Dec 10 22:18:44 CET 2001
282	root	1.63	- Fixed a bug in SemaphoreSet::timed_down.
283
284	root	1.64	0.53 Tue Nov 27 21:11:13 CET 2001
285	root	1.60	- some tests for Event.
286	root	1.61	- slightly different internal architecture to get refcnt into the object
287			and not the reference. might fix a few bugs, certainly did introduce
288			new ones.
289			- Coro::Timer (independent of Event).
290	root	1.62	- new timed_wait functions for Coro::Signal, Semaphore, SemaphoreSet.
291	root	1.60
292	root	1.64	0.52 Tue Nov 6 21:36:18 CET 2001
293	root	1.58	- ported to cygwin (trivial).
294			patch by Gerrit P. Haase <gp@familiehaase.de>.
295			- small setjmp code fix by Sullivan.DanielJ@epamail.epa.gov.
296
297	root	1.64	0.51 Thu Nov 1 20:39:01 CET 2001
298	root	1.54	- terminate/cancel now work properly (otherwise termination
299			could cause a "next coroutine is not and contains not..."
300			error.
301	root	1.55	- added Coro::Socket::shutdown.
302	root	1.56	- Coro::Event::loop no is the same as Event::loop.
303			- implemented terminate with args + join.
304	root	1.54
305	root	1.64	0.5 Fri Sep 28 16:15:35 CEST 2001
306	root	1.53	- fixed "print" on a Coro::Handle. The print method worked.
307	root	1.50	- small tweaks (seem to reduce memory consumption a lot)
308			in various modules.
309			- splendid use of "no warnings" scattered throughout.
310	root	1.52	- added Coro::Handle::rbuf, fixed Coro::Handle::fh.
311	root	1.48
312	root	1.47	0.49 Sun Sep 16 02:42:45 CEST 2001
313	root	1.43	- changed some method calls to function calls for speed
314			inside Coro::Handle.
315	root	1.44	- make Coro::Handle use an array instead of a hash for
316			speed reasons.
317			- IRIX mystery solved: it's SGI's NT, after all: "standard, huh?".
318			sjlj and ucontext should now work.
319			- IRIX-specific port for libcoro.
320	root	1.45	- swapped order of accept results to match IO::Socket.
321	root	1.46	- changed getsock/peername to sock/peername to match IO::Socket.
322			- fixed a bug that caused segfault when returning to main task
323			under some circumstances.
324			- other bugfixes.
325	root	1.43
326	root	1.42	0.45 Sun Sep 2 02:54:01 CEST 2001
327	root	1.36	- new method Coro::Handle::timeout.
328			- corrected speling of set...name to get...name in Coro::Socket.
329			- Coro::Socket::accept now returns a Coro::Socket, not a Coro::Handle.
330			- Coro::Handle now supports fileno and FILENO.
331			- added eg/myhttpd, a web server.
332	root	1.37	- Coro::Socket now accepts numeric ports as well as "port(number)"
333			syntax.
334	root	1.38	- moved some scheduling primitives into xs code. more to come.
335	root	1.39	- new simple priority system.
336	root	1.40	- implemented Coro::Event using XS, almost four times faster!
337	root	1.41	- small memory corruption problem fixed (boy that was difficult).
338	root	1.36
339	root	1.35	0.13 Wed Aug 8 16:53:07 CEST 2001
340	root	1.31	- new method Coro::Handle::readline.
341	root	1.34	- added eg/lwp and Coro::Handle::autoflush, to make LWP work.
342			(see eg/lwp on how to make LWP non-blocking).
343	root	1.31	- renamed Coro::Socket::new_inet to new.
344	root	1.32	- added Coro::Util, some utility functions.
345	root	1.33	- die/eval now works better (still get annoying (but true ;)
346			"Callback called exit" messages).
347	root	1.34	- Coro::Handle now supports timeout, and Coro::Socket Timeout.
348			- much better Coro::Socket support.
349	root	1.31
350			0.12 Fri Jul 27 04:19:01 CEST 2001
351	root	1.29	- do not use mmap if neither MAP_ANON nor MAP_ANONYMOUS is defined.
352	root	1.34	- very experimental stack sharing algorithm. not 100% safe but
353	root	1.28	should work well in practise ;)
354	root	1.30	- added Coro::RWLock.
355	root	1.31	- Coro::Specific now works.
356	root	1.28
357			0.11 Tue Jul 24 22:49:21 CEST 2001
358	root	1.27	- added specialized hack for newer and older linux versions (fast).
359			- renamed Coro::Event::IO to Coro::Handle.
360			- new module Coro::Socket.
361
362	root	1.26	0.1 Tue Jul 24 01:47:53 CEST 2001
363	root	1.23	- release candidate 3. A rather new internal structure :(
364	root	1.24	- the great renaming: Damian Conway gave me a suitable replacement
365			for yield.
366	root	1.23	- added Coro/libcoro, a portable coroutine implementation for C
367	root	1.22	(not even perl-dependent!!!), which can be used by Coro::State.
368	root	1.20	- renamed SAVE_DEFSV (on xs-level only) to avoid symbol clash in
369			perl-5.6.
370	root	1.16	- new function Coro::Event::idle.
371			- the idle process is now overriden
372			by default in Coro::Event.
373	root	1.17	- Coro::Channel now enforces the size.
374	root	1.18	- canceling events now works in all cases.
375	root	1.19	- Coro state now include $_ and $@.
376			- yet another bug workaround that I do not really understand :(
377	root	1.21	- new module Coro::Event::IO (very undocumented) to do
378			non-blocking i/o.
379	root	1.25	- performance tuning.
380	root	1.16
381	root	1.15	0.08 Thu Jul 19 06:13:25 CEST 2001
382	root	1.14	- release candidate 2 (new functionality).
383	root	1.13	- add Coro::State::flush function.
384			- transfer now supports a flags value (mostly for speed ATM).
385			- might compile and work in the presence of threads now.
386	root	1.14	- continuations have a saner syntax.
387	root	1.19	- no more memleaks.
388	root	1.13
389	root	1.12	0.07 Tue Jul 17 17:40:18 CEST 2001
390			- release candidate 1 ;)
391			- slightly nicer code.
392			- fixed a scheduling bug in Coro::Event.
393
394	root	1.11	0.06 Tue Jul 17 04:23:24 CEST 2001
395			- ok, I found the showstopper - the same sub must not be
396	root	1.9	re-entered in two different coroutines, otherwise => crash. I
397			see no easy solution to this problem, except by walking the call
398			chaing and saving/restoring the cv's, which is what I do now.
399	root	1.11	- memory leaks still latent, especially at thread termination.
400			- Coro::Event now works (haha).
401	root	1.9
402	root	1.8	0.05 Sun Jul 15 17:32:20 CEST 2001
403			- fixed a few issues in Coro::Event.
404			- I forgot to include Coro::Event in 0.04 :(:(:(
405
406	root	1.7	0.04 Sun Jul 15 05:24:59 CEST 2001
407	root	1.5	- @_ is now properly localized.
408	root	1.4	- Coro::State is now easier subclassable.
409			- Coro::Cont now coroutine-aware.
410			- Coro::Specific is a low-overhead module to create
411			coroutine-specific vars.
412	root	1.6	- Coro::Event provides a simple interface to Event.
413	root	1.4
414	root	1.3	0.03 Fri Jul 13 14:51:52 CEST 2001
415	root	1.4	- transfer() now implemented in XS (beware).
416			- new module Coro::Cont for really faked continuations.
417			- big internal architecture changes: Coro::State is now
418	root	1.3	really low-level and can thus be used to implement other
419	root	1.4	interesting things, While "Coro::" implements a process-like
420			model. Still crude and subject to change.
421	root	1.3	- $_ and $@ are no longer being localized.
422
423	root	1.2	0.02 Tue Jul 10 01:38:17 CEST 2001
424			- implemented "async" attribute.
425			- $_ and $@ are now localized.
426			- added Coro::Channel.
427			- more testcases, still no docs.
428
429	root	1.1	0.01 Tue Jul 3 02:18:41 CEST 2001
430			- original version; copied from Convert::Scalar.
431