--- Coro/Changes 2011/06/28 22:18:57 1.571 +++ Coro/Changes 2015/10/16 23:42:56 1.653 @@ -2,21 +2,215 @@ TODO: should explore PerlIO::coroaio (perl leaks like hell). TODO: channel->maxsize(newsize)? -TODO: http://www.microsoft.com/msj/archive/s2ce.aspx +TODO: __GCC_HAVE_DWARF2_CFI_ASM +TODO: swap_sv, maybe add scope_swap_sv, andallow to unswap by repeat? +TODO: swap_sv not undone in pool +TODO: croak when async_pool tries to run canceled thread? + +6.49 Sat Oct 17 01:40:12 CEST 2015 + - throwing an exception to a thread waiting in + Coro::Handle using Coro::EV did not stop the watchers, + causing the next call to fail (testcase by Martin Pritchard). + - bump minimum perl version to 5.10. + +6.48 Sun Oct 4 19:03:51 CEST 2015 + - fix memory leak when Coro::Handle uses Coro::EV internally + (testcase by Sten Sten). + - update code to libev 4 API (internally, Coro still used the + version 3 API calls). + - remove unused hv_sig. + +6.47 Sat Jul 11 03:58:20 CEST 2015 + - swap_svs - NVs can be in the SV head beginning with 5.20. + +6.46 Tue Jun 30 14:36:30 CEST 2015 + - restore portability to perls with windows fork emulation + (patch by Petr Písař). + +6.45 Tue Jun 30 01:40:08 CEST 2015 + - restore portability to perl 5.16 and below. + +6.44 Tue Jun 30 00:41:54 CEST 2015 + - avoid segfaulting (or worse) when tracing a canceled thread. + - the Event module silently broke it's public hook API, causing + failures on perls compiled with -Duselongdouble. Requiring + the latest version of Event because I don't know which release + changed this (it's not mentioned in the ChangeLog). + - allow xs level enterleave hooks via CoroAPI. + +6.43 Thu Jun 4 15:38:14 CEST 2015 + - use stability canary. + - port to stableperl-5.22.0-1.001. + - update libecb. + +6.42 Wed Feb 11 20:29:52 CET 2015 + - Coro::SemaphoreSet->try did not actually work (analyzed by + SATO Kentaro). + - upgrade libecb to be C11 compliant. + +6.41 Sat Sep 6 22:08:46 CEST 2014 + - restore portability to perl 5.8.x. + - give new Coro's a valid GvHV(PL_hintgv) - this is slow and takes + up some memory, but fixes "use feature" and similar modules + when used inside a Coro. + - allow zero as argument to Coro::Channel to mean the same thing + as no argument. this works with older versions as well, + but wasn't legal until now. + - slightly better c header file detection. + +6.39 Mon Jun 2 00:00:08 CEST 2014 + - work around more incompatible changes in 5.20. + +6.38 Sun Jun 1 21:54:23 CEST 2014 + - check that perl slots actually have enough space to hold + interpreter variables. + - untested port to perl 5.19 (64 bit tmps indices) (reported + by Andreas König). + - croak when cancel is called without a thread context. + +6.37 Tue Mar 4 13:27:33 CET 2014 + - *sigh*, removed leftover debugging code from debugging a + perl bug, of all things. + +6.36 Tue Mar 4 07:11:59 CET 2014 + - semaphores would not clear the destroy hook when interrupted + by ->throw, causing segfaults or worse. + - ->throw on a thread waiting for a semaphore did not acquire + the semaphore, but also didn't wake up other waiters, + possibly causing a deadlock. + - "FATAL: $Coro::IDLE blocked itself" will now use Carp::confess + to report a full stacktrace, which should help find out + where the actual call is. + - "atomically" destroy data in slf_destroy, because it is + the right thing to do, just in case. + - disable ecb.h libm dependency, to compile on ancient systems + or under adverse conditions. + +6.33 Mon Nov 18 11:26:27 CET 2013 + - do not crash when freeing padlists with holes (in 5.18). + - tentative SVt_BIND 5.19 port/fix. + +6.32 Tue Nov 5 15:35:35 CET 2013 + - use a new algorithm to derive padlists for perl 5.18. The old + one could lead to 0-pointer accesses inside perl (reported + by Darin McBride). + +6.31 Thu May 9 07:39:48 CEST 2013 + - Coro::AIO requests would crash if the thread was ready'd + while the request was ongoing. + +6.29 Wed May 8 02:55:18 CEST 2013 + - when an on_destroy handler destructs the coro currently being + destructed a perl scalar could be accessed after being freed, + likely causing a crash. + +6.28 Wed Mar 6 06:58:02 CET 2013 + - clean remnants of existing __DIE__ and __WARN__ handlers so + they lose their magic and will not cause segfaults later + (testcase by Andrey Sagulin). + - improved Coro::State documentation a bit. + - Coro::Debug::command now flushes the output. + - add hack detection code for x32 abi, because the braindead slugs + who designed that made it look exactly like x86_64 without + providing proper compile time symbols to test for it. as a result, + this detection cannot work reliably. + - valgrind stack registering was broken. + - do not rely on Time::HiRes anymore in Coro::Debug. + +6.23 Fri Dec 7 23:36:37 CET 2012 + - use experimental fiber implementation on native windows + perls. + - use sizeof (void *) as multiplication factor for stack sizes, + to accomodate the totally braindamaged microsoft 64 bit "os". + - changed verifier host from win2k-ap510-32 to win7-sp516-32/64. + activeperl 5.16 crashes when PerlIO_define_layer is called due + to some bug in the perl dll, strawberry perl at least passes + the testsuite. + - implement Coro::Handle->peeraddr/host/port, for slightly + improved compatibility with LWP. + - implement 5.17 compatibility by almost blindly applying a + good-looking patch by Father Chrysostomos. + - move stack management functions into libcoro 3. + - libcoro version 3 "released". + - support magic values as timed_io_once args. + - recommend AnyEvent 7+ or EV 4+, also require EV + version 4 or newer for Coro::EV. + +6.10 Tue Oct 9 01:14:27 CEST 2012 + - updated ecb.h, it had a typo that caused it to not compile on many + big endian systems (reported by many people). + - disable memory fences in ecb.h to improve portability. + +6.09 Sat Oct 6 23:25:02 CEST 2012 + - Coro::EV I/O watchers were not interruptible by exceptions + (Coro::State::throw) (testcase by sten). + - ->throw now puts threads into the ready queue, as this seems to + be expected by existing code, and code that doesn't cope with spurious + wakeups needs fixing anyway. + - use fd -1 in mmap. + - cast I32 to int in error message printf. + - warn about broken so-called "hardened" kernels. + +6.08 Fri Apr 13 12:05:47 CEST 2012 + - be more aggressive about exiting like perl does - formerly, + exiting from the non-main thread would not execute END blocks. + +6.07 Fri Nov 11 21:21:48 CET 2011 + - work around a bug in PerlIO (setting $SIG{__WARN__} to a PVCV). + - update ecb.h. + +6.06 Mon Aug 8 23:59:48 CEST 2011 + - cygwin unfortunately patches the stack at runtime, so we use the pthreads + backend, which is an order of magnitude slower. unfortunately, cygwins + pthread implementation isn't very complete either, so allocate the stack + twice just to be sure. + (note: cygwin also enables mymalloc, which is NOT THREADSAFE ON WINDOWS, + in its ithreaded perl - best recompile cygwin and use the 'w'indows + backend for much better performance. also disable ithreads for + even better performance...). + +6.05 Thu Aug 4 21:36:36 CEST 2011 + - blush, condvar values would not be propagated from send to recv anymore + (reported by Chip Salzenberg). + - use exponential increase for the readline buffer length in + Coro::Handle. also reduce initial allocation to 1020 from 4096 bytes. + +6.04 Wed Aug 3 17:15:45 CEST 2011 + - use even more efficient and more compatible condvars for + compatibility to AnyEvent 6.x :) + - more inconsequential ecb.h updates. + +6.03 Wed Aug 3 11:41:30 CEST 2011 + - change how Coro patches AnyEvent condvars for compatibility to + AnyEvent 6.x. + - update ecb.h, to no longer include in case WinNT.h + hasn't been included. + +6.02 Wed Jul 13 04:35:19 CEST 2011 + - "improve portability to Gentoo" - gentoo manages to put perl variables + in memory areas that are farther than 2gb apart, which the jit couldn't + handle and barfed. now it's just a bit slower on gentoo and similar + systems. + +6.01 Sun Jul 3 12:31:14 CEST 2011 + - workarounds are good, but the test for whether pthreads are used + was not good. this one should be better. + - check differently whether gcc generates cfi instructions itself. -TODO: tutorial -TODO: in_eval, PL_tained +6.0 Wed Jun 29 19:43:35 CEST 2011 - INCOMPATIBLE CHANGE: unreferenced coro objects will now be destroyed and cleaned up automatically (e.g. async { schedule }). - implement a JIT compiler for part of the thread switch code, which gives a 50% speed improvement on threaded perls, and - about 4% on non-thraeded perls (so threaded perls now finally + about 4% on non-threaded perls (so threaded perls now finally reach about half the speed of non-threaded perls). + - slightly modernise Coro::Intro, add section about rouse functions. - avoid DEFSV and ERRSV, giving another 10% improvement in thread switching. - Coro::State->is_destroyed is now called is_zombie. - implement a Coro->safe_cancel method that might fail, but cancels in a "safer" way if it succeeds. + - add preliminary support for DEBUGGING perls. - get rid of two hash-accesses when initialising a new Coro - this speeds up coro creation by almost a factor of two. - croak when a coro that is being cancelled tries to block @@ -43,7 +237,8 @@ - use libecb instead of our own home-grown gcc hacks. - document alternatives to Coro::LWP. Please use them :) - work around another mindless idiotic NEEDLESS bug in openbsd/mirbsds - sigaltstack. + sigaltstack. Really. wine suffers from it, erlang suffers from it, + and it's known since at least 2006. 5.372 Wed Feb 23 06:14:30 CET 2011 - apparently mingw doesn't provide a working gettimeofday, try to @@ -371,7 +566,7 @@ - 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) 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. @@ -443,7 +638,7 @@ outdated software). Reported by John S. 4.744 Tue Jul 8 22:06:35 CEST 2008 - - correctly provide default DIE/WARN handlers as documented. + - 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. @@ -475,7 +670,7 @@ - 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 + - 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...). @@ -489,7 +684,7 @@ 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()"). + - 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 @@ -497,7 +692,7 @@ 4.7 Sun May 11 00:32:19 CEST 2008 - completely reworked the Coro manpage. - - added Coro::AnyEvent, generic event loop integration. + - 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. @@ -631,7 +826,7 @@ - port to threaded perls. 4.1 Thu Oct 11 02:38:16 CEST 2007 - - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now + - 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. @@ -713,7 +908,7 @@ Steinbrunner, which applied flawlessly). 3.6 Sat Apr 14 17:13:31 CEST 2007 - - added some bugfixes to get eg/myhttpd working again. + - 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).