--- Coro/Changes 2001/08/11 19:59:19 1.38 +++ Coro/Changes 2008/11/19 15:29:57 1.443 @@ -1,6 +1,793 @@ Revision history for Perl extension Coro. -0.45 +TODO: should explore PerlIO::coroaio (perl leaks like hell). +TODO: maybe implement a default message channel, very much like Erlang's + actor model (which is cool in a lot of important aspects (failures!), + but very lacking in others (higher level ipc)). + +TODO: async_pool to SLF +5.0 + - NEW ARCHITECTURE: use the latest 4.x version if you experience + stability issues. + - bump API version to 7 - all dependents must be recompiled. + - removed timed_* functions - they were not being used anyways + and should be replaced by a more generic mechanism - + and were annoying to support anyways :) + - removed SemaphoreSet's waiter method - use sem instead. + - Coro::Semaphore->adjust didn't correctly wake up enough waiters. + - async_pool did free a scalar value twice + ("Attempt to unreference..."). + - fix a disastrous bug in the readline optimisation + introduced in 4.801. + - fix a longstanding bug where calling terminate on a coro that + was waiting for a semaphore that was just becoming available + would cause a deadlock (semaphore would get into a state where + it was available but waiters were still blocked). + - calling throw on a coroutine that is waiting for a semaphore will + no longer make it acquire the semaphore (and thus leak a count). + - perl's process emulation is now not even theoretically supported + anymore. + - new functions Coro::rouse_cb and Coro::rouse_wait. + - new function Coro::Semaphore::wait. + - use named constants in Coro::Channel (Richard Hundt). + - directly patch the entersub opcode calling SLF functions (cede, + transfer and so on). this does speed up context switching, but + more importanly, it frees us from the hardcoded behaviour of + entersub, so we might actually be able to return something from + those functions and atcually create new ones. + - take advantage of __builtin_frame_address on gcc. + - expose THX in coroapi (not sure whether this was a wise decision, + as "threaded" perls are running at half speed anyways). + - implement execute_slf (schedule-like-function) interface that makes + it possible to implement schedule-like-functions in XS. + - use new SLF interface to massively speed up Coro::EV by roughly a + factor of two. + - used new SLF interface to massively speed up Coro::Semaphore by a + factor of three. + - used new SLF interface to speed up Coro::AIO by roughly a factor of + four and reduce its memory usage considerably. + - implement Coro::SemaphoreSet purely in terms of Coro::Semaphore, + for a nice speedup and vastly more correct behaviour. Also implement + a new method "sem" to get at the underlying semaphore object. + - implement Coro::Channel in terms of Coro::Semaphore, for a moderate + (in comparison) 20-40% speedup. + - used new SLF interface to reimplement Coro::Signal gaining + some unknown (because I was too lazy), but certain, speedup, and also + making signals reliable for the first time. + - sped up coroutine creation/destruction by 20%. + - forgot to include Coro/libcoro/README in the dist for all these years. + - work around a freebsd pthreads bug (manual testcancel is required as + pthread_cond_wait isn't a cancellation point on freebsd). + - use new rouse functions to speed up and simplify Coro::BDB. + - make "prefer perl native functions" work with threaded perls. + - condense Coro::Debug ps output, hint at v and w flags. + - (libcoro) lots of minor cleanups and portability improvements. + +4.913 Sat Nov 15 07:58:28 CET 2008 + - async_pool did free a scalar value twice + ("Attempt to unreference..."). + +4.912 Thu Nov 13 18:31:23 CET 2008 + - minor cleanups. + - use much larger stacks on linux and perl < 5.8.8. + - Coro::Debug::new_unix_server did not unlink the socket + when destroyed. + +4.911 Tue Nov 11 04:26:17 CET 2008 + - "port" to threaded perls. + +4.91 Mon Nov 10 05:36:38 CET 2008 + - the ->throw exception object no longer leaks. + - creating a new cctx leaked a scopestack entry (memleak). + - new coroutines didn't get created with a zero flags field + (unknown impact). + - calling ->throw on a not-yet-started coroutine should now work + instead of being ignored. + - ->throw is now supported on Coro::State objects. + - clean up cctx creation code a bit. + - entersub is actually a UNOP, not a LOGOP (not a bugfix). + +4.9 Sat Nov 8 17:45:27 CET 2008 + - (libcoro) did not preserve rbp with CORO_ASM (we are getting there). + - (libcoro) no longer leak threads in the experimental pthread backend, + also speed it up considerably. + - (libcoro) do not rely on makecontext passing void *'s unscathed. + - fix compiletime dependencies on libcoro in the Makefile. + - cctx_count wasn't always updated properly. + - Coro::State::cctx_stacksize wasn't applied correctly. + - new function Coro::State::cctx_max_idle. + - the default max number of idle C contexts is now 4. + - (libcoro) try harder to get _setjmp/_longjmp. + - (libcoro) cleanup and extend the libcoro API to officially + allow the creation of empty source contexts. + - very experimental workaround for the totally broken netbsd platform. + - tried to hack around openbsd bugs. + +4.804 Wed Nov 5 16:36:00 CET 2008 + - Coro::Debug::new_unix_server would not create a non-blocking listening + socket, sometimes causing freezes. + - (libcoro) fix misaligned stack points for setjmp and assembly + methods, which can cause crashes on x86/x86_64 with a sufficiently + aggressive compiler. + - new function: Coro::Debug::new_tcp_server. + - move ->throw into the Coro class because it only works on coro objects. + +4.803 Mon Nov 3 17:16:12 CET 2008 + - (libcoro) use a global asm statement to become independent of gcc + otpimisations for CORO_ASM (thanks to pippijn for the idea). + - try to workaround yet another broken bsd, this time dragonfly. + +4.802 Thu Oct 30 10:56:12 CET 2008 + - support -fno-omit-frame-pointer on x86 with the assembly method. + - tune 01_unblock.t tests a bit. + +4.801 Wed Oct 22 18:33:37 CEST 2008 + - improve readline speed for very long "lines". + - backport to 5.8.8. + +4.8 Thu Oct 2 13:34:40 CEST 2008 + - new function Coro::AIO::aio_wait. + - Coro.:AIO and Coro::BDB now "use Coro::AnyEvent". + - greatly speed up and reduce memory usage of Coro::AIO requests. + - implement some other µ-optimisations. + +4.749 Mon Sep 29 14:40:12 CEST 2008 + - port to slow and broken pseudo-threaded perls. (courtesy pippijn). + +4.748 Sat Sep 27 14:03:19 CEST 2008 + - implement, but do not document, PerlIO::cede(granularity). + - Coro::Storable forgot to wrap Storable::pstore. + - work around the multitude of leaks and memory corruption + bugs in PerlIO::via by using our own C-level perliol. As a side + effect, Coro::Storable is now much, much, much faster. + +4.747 Tue Sep 23 01:59:41 CEST 2008 + - fix a per-cv memleak (one empty array was leaked per + code reference). + - avoid a crash in coro->call|rss when the coroutine was already + destroyed (most noticably when using Coro::Debug::ps :) + - also protect *Storable::FILE. + - push up default storable granularity to 20ms. + +4.746 Sun Sep 21 03:22:20 CEST 2008 + - be more insistent on locking Storable against reentrancy + in Coro::Storable. + - move swap_def?v and throw to Coro::State, as documented. + +4.745 Thu Jul 24 00:14:38 CEST 2008 + - remove debugging code related to MgPV_nolen_const, also try to + make it compile with perl 5.8.6 (yes, apple apparently loves + outdated software). Reported by John S. + +4.744 Tue Jul 8 22:06:35 CEST 2008 + - correctly provide default DIE/WARN handlers as documented. + - also overwrite PL_vtbl_sigelem.svt_clear, even though current + implementations inside perl work fine for us. + +4.743 Mon Jun 16 00:21:57 CEST 2008 + - when using Coro::EV without running EV::loop it could + result in busy-waiting for events, this has been fixed. + - reduce codesize and improve performance by using EV_DEFAULT_UC. + +4.742 Sat May 31 14:10:21 CEST 2008 + - implement a workaround for (some) perl <5.8.8 versions. + - require EV 3.3+. + +4.741 Fri May 30 23:33:09 CEST 2008 + - tell netbsd how utterly broken their imitation of an OS is + and refuse to build by default if pthreads are in use. + - switch to "s" method on all bsd's by default, as their ucontext + stuff seems just too broken. + - fix a bug in Coro::Select. + +4.74 Thu May 29 20:05:31 CEST 2008 + - do not test Coro::LWP for lack of dependencies. + - do not test Coro::Select for lack of working perls. + +4.73 Thu May 29 2008 + - fix a bug in Coro::EV which would cause it to block despite + there being runnable coroutines. + - sprinkle "no warnings" freely over everything, also suppress + warnings for some other modules. + - fix typo in WSAEWOULDBLOCK. + +4.72 Sun May 25 05:14:36 CEST 2008 + - tweak META.yaml a bit, unfortunately, there is no documented way + to have optional dependencies with CPAN. doh :( + - avoid running some tests on windows because they would fail due to + perl bug (broken fork, broken pipes...). + - work around perl on windows bugs where perl returns undocumented + error codes for sysread, syswrite etc. by taking advantage + of AnyEvent's workaround for that problem. + - use AnyEvent::Util::fh_nonblocking in Coro::Handle to work around + a common perl implementation bug on windows. + - use unix domain sockets in testsuite to work around + common perl implementation bugs on widows (they are emulated by + tcp sockets on windows. ugh.) + +4.71 Sat May 24 20:01:27 CEST 2008 + - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()"). + - take advantage of async name resolution of AnyEvent::Util. + - work around brutal inet_aton override in Coro::LWP. + - take advantage of the readyhook in Coro::EV, for smoother + scheduling. + +4.7 Sun May 11 00:32:19 CEST 2008 + - completely reworked the Coro manpage. + - added Coro::AnyEvent, generic event loop integration. + - implement cancel, ready and kill commands in Coro::Debug. + - document find_coro in Coro::Debug. + - incompatible change: rename has_stack to has_cctx. + - Coro::AIO and Coro::BDB no longer force event model detection, + use AnyEvent::AIO and AnyEvent::BDB. + +4.6 Sat Apr 26 10:05:14 CEST 2008 + - INCOMPATIBLE CHANGE: sub/code attributes are no longer supported + by the Coro module. It was a mistake to have it in the first place. + - (experimental) support for activestate perl 5.10 (method "w"). + - (experimental) support for strawberry perl (method "a"). + - coro_sigelem_set did not return a value although it had to, + actual impact unknown. + +4.51 Mon Apr 14 13:28:27 CEST 2008 + - make it compile again on 5.8. + +4.50 Thu Apr 10 09:43:17 CEST 2008 + - I did it twice! (see 4.49). + +4.49 Sun Apr 6 21:23:31 CEST 2008 + - grr, instead of compiling the recent changes on 5.10 only they + were compiled on 5.8 only. + +4.48 Sun Apr 6 20:36:46 CEST 2008 + - allow coroutine switches during eval's under 5.10.x, as it seems + the parser is a per-interpreter option now, so this is safe + (this might fix the odd crashing bug). + - drop support for 5.9.x versions: they are dead, jim. + +4.47 Sun Apr 6 00:37:52 CEST 2008 + - force cctx allocation on API calls: we know we need to force one + and gcc actually manages to confuse our heuristic nowadays, + leading to crashes and worse. + - document force_cctx. + +4.46 Fri Apr 4 22:05:43 CEST 2008 + - upgrade libcoro, resulting in pthread-backend (which was only created + to fulfill the rules of the programming languages shootout). + +4.45 Thu Mar 13 11:55:36 CET 2008 + - fix a file leaking bug in eg/mhyttpd that would allow + downloading of any file (reported by oesi). + - fix deadlock bug in Coro::Channel (reported by Richard Hundt) + (also add testcase). + - support Broadcast option in Coro::Socket (patch by Richard Hundt, + apparently having loads of fun with that). + - implement $state->swap_defsv, ->swap_defav and document ->throw. + +4.4 Wed Feb 13 16:44:29 CET 2008 + - only assume .cfi pseudo isns exist on GNU/Linux. + - add get_timed method to Coro::Channels. + - fixed Coro::Debug manpage. + - perl 5.11 compatbility improvement based on patch by + Andreas König. + +4.37 Sun Jan 20 11:25:23 CET 2008 + - soften the check for an active parser for perl 5.10 (avoiding + "Coro::State::transfer called while parsing" in many cases). + +4.36 Sun Jan 13 10:53:56 CET 2008 + - reset diehook when terminating from an async_pool as to not + trigger any __DIE__ handlers. + +4.35 Sun Jan 13 04:14:13 CET 2008 + - "bt" debug command now displays any exceptions + from longmess and also skips the innermost + stackframes, giving more useufl output. + - allow backtraces in coroutines blocked in Coro::EV, + at a <1% speed hit. + - handle localising of $SIG{__WARN__} and __DIE__ + properly (with a proper amount of dirty hacking). + +4.34 Sat Dec 22 17:49:53 CET 2007 + - upgrade to EV version 2.0 API. + +4.33 Mon Dec 17 08:36:12 CET 2007 + - make Coro::AIO etc. loadable in the absence of EV. + +4.32 Mon Dec 17 07:46:02 CET 2007 + - majorly improved Coro::Handle's performance with Coro::EV. + - implemented the until now mythical Coro::BDB module. + - specialcase EV in Coro::AIO and Coro::BDB for extra speed. + +4.31 Wed Dec 5 12:32:39 CET 2007 + - remove warn statement form Coro::Util. + +4.3 Tue Dec 4 20:33:14 CET 2007 + - calls to the idle function could cause stack corruption + when the stack changed. + - do no longer rely on the presence of EV::DNS if EV is used + (because it is gone), but instead take avdantage of EV::ADNS + if available. + - add ($) prototypes to all functions in Coro::Storable. + - use a conventional (safer) idle callback in Coro::EV. + - do accept quickly in Coro::Debug to avoid endless loops. + +4.22 Fri Nov 30 16:04:04 CET 2007 + - really use optimised versions for Event and EV in Coro::Util + and Coro::Handle. + +4.21 Sun Nov 25 10:48:59 CET 2007 + - fix a spurious memory read. + - Coro::EV no longer keeps the eventloop "alive". + +4.2 Fri Nov 9 20:47:05 CET 2007 + - enable/disable tracing from a new coroutine, not a pooled one. + - fix a memleak in Coro::Event. + - removed killall call from fork_eval. + - made sure store_fd is already loaded so that fork_eval + does not have to parse autoload in each subprocess. + - only use assembly method if -O switch is in $Config{optimize}. + - add (optional) Coro::EV module, so far the best event loop module + directly supported by Coro. + - if the event model is EV, use EV::DNS to resolve + stuff in Coro::Util. + - don't get confused by multiple event notifications in Coro::Handle. + - initial support for EV (libevent interface). + - require Event and EV using configure_requires, to force their existance. + +4.13 Wed Oct 24 07:26:45 CEST 2007 + - add Coro::Storable::blocking_thaw. + - use a vastly more complicated technique to localise + $SIG{__WARN/DIE__} that also works on perls <= 5.8.8. + - use a coroutine for the idle callback Coro::Event, + instead of running Event in the current coroutine context. + This also catches recursive invocations. + - actually report fork errors in gethostbyname and inet_aton. + +4.11 Thu Oct 11 02:40:24 CEST 2007 + - port to threaded perls. + +4.1 Thu Oct 11 02:38:16 CEST 2007 + - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now + be local to each coro (see Coro::State). + - incompatible change: for very deep reasons, cede and cede_notself + cannot return anything, so nothing will be returned. + - possibly bring back 5.10 compatibility (untested). + - work around stupid (and wrong) warning on 5.10 :(. + - overlay the saved state over the context stack. This saves + a few hundred bytes per coroutine on average and also + speeds up context switching a bit. + - further tune default stack sizes. + - (more) correctly calculate stack usage in coro_rss. + - Coro::Storable::blocking_* did not properly lock + resulting in races between coroutines. + - added Coro::Storable::guard. + - stopping to trace a coroutine could destroy the cctx of + an unrelated coroutine. + - explain the relationship between Perl and C coroutines in + more detail in Coro::State. + - Coro::Util::inet_aton did not short-circuit dotted quad forms, + causing a fork per resolve. This also affected Coro::Socket. + - switch to a separate stack in $coro->call/eval to avoid + invalidating pointers. + +4.03 Sat Oct 6 21:24:00 CEST 2007 + - added Coro::throw method. + - minor code cleanups. + +4.02 Sat Oct 6 02:36:47 CEST 2007 + - fix a very minor per-coroutine memleak (a single codereference). + - fixed a bug where the currently in-use c context would be freed + prematurely (can happen only when programs change the stacksize + or use tracing). + - tracing can no longer keep a coro alive after it terminated. + - do static branch prediction in the common path for gcc. gives + about 2-5% speed improvement here. + +4.01 Fri Oct 5 22:10:49 CEST 2007 + - instead of recreating *a* standard output handle we simply + use STDOUT, which is faster and hopefully more robust. + +4.0 Fri Oct 5 12:56:00 CEST 2007 + - incompatibly changed Coro::Storable::freeze. + - major new feature: added Coro::Debug, for interactive coroutine + debugging, tracing and much more. + - major bug fix: unbelievable, but true: $_, $/ and many other + "saved" variables actually weren't being saved. This has been fixed, + of course, while increasing performance while losing all the save + flags. + - save flags are gone, and all the api functions dealing with them. + - added Coro::Semaphore::adjust. + - added Coro::Util::fork_eval. + - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}. + - added Coro::killall. + - reduce initial stack sizes to allow for "micro-coroutines". + - better async_pool resource management, moved parts of async_pool + handling to XS (major speed improvement). + - actually croak before modifying important data structures. + - refuse to transfer while compiling. + - possibly support eval EXPR better now. + - enable assembly per default on linux+bsd x86+amd64. + - all internal members were renamed _something for easier subclassing. + - many minor tweaks. + +3.63 Wed May 16 14:10:06 CEST 2007 + - implement handcoded assembly for x86/amd64 SVR ABI. + +3.62 Fri Apr 27 21:36:06 CEST 2007 + - upgrade libcoro (which might set unwind info correctly). + - change default on linux to setjmp/longjmp. + +3.61 Thu Apr 19 12:36:18 CEST 2007 + - Coro::Storable caused an endless loop when thawing invalid + pst's sometimes. + - use a Semaphore in Coro::Storable, as Storable doesn't + seem to be reentrant (although it is documented to + be threadsafe...). + - fix Coro::Signal to bring back the original unreliable + but stateful semantics. + - fixed a lot of typos in Coro.pm (patch submitted by David + Steinbrunner, which applied flawlessly). + +3.6 Sat Apr 14 17:13:31 CEST 2007 + - added some bugfixes to get eg/myhttpd working again. + - added Coro::Storable for often-cede'ing freeze/thaw. + - try to do a clean exit when a coroutine calls exit + (EXPERIMENTAL). + - got rid of indirect call through _coro_init. + - updated the partly antique examples in eg/ to + work again and be a bit less magic, too. + - fixed Coro::Signal semantics to work as documented again. + +3.55 Sun Mar 25 01:20:47 CET 2007 + - add SAVE_DEFFH to save the default filehandle and enable + it by default. + - finally move socket-operations from Coro::Socket to Coro::Handle + to be able to unblock foreign sockets. + - add Coro::State::save_also and guarded_save. + - add count accessor to Coro::Semaphore. + - add Coro::State::cctx_stacksize. + - just for the fun of it, do not rely on implicit context, + which can dramatically improve performance, but people + using windows-process-emulation perls do not care much about + performance. + +3.51 Sun Mar 4 14:18:04 CET 2007 + - fixed a problem when you weakened references to Coro::State's + (patch by Yuval Kogman). + +3.501 Wed Feb 28 12:44:07 CET 2007 + - rename some global symbols as macosx from hell redefines + them without asking. + +3.5 Tue Feb 13 20:22:53 CET 2007 + - do AnyEvent model detection earlier, avoiding problems + caused by first using AnyEvent and later Coro::Event. + - implement and document Coro::Event event objects. + - fix a potential problem in Coro::Event causing crashes. + - initialise PL_comppad when creating a new coroutine, + avoids crashes on early coro destruction. + +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 . + - 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. @@ -9,6 +796,9 @@ - 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.