--- EV/Changes 2007/12/20 09:45:52 1.98 +++ EV/Changes 2011/01/11 13:52:11 1.205 @@ -1,7 +1,257 @@ Revision history for Perl extension EV -TODO: document fork watchers +Changes marked with (libev) are changes in libev, and have more +documentation in the libev Changes file. +4.03 Tue Jan 11 14:51:05 CET 2011 + - do not avoid the clock_gettime call on GNU/Linux anymore, as EV + links against -lpthread anyways - as a result, EV might now take + advantage of fast userspace clock_gettime implementations, + but also links against -lrt. + - (libev) lots of event port bug workarounds. + - (libev) officially support files in I/O watchers. + - (libev) new function ev_feed_signal. + - fix documentation parts still refering to the 3.x API. + +4.02 Thu Dec 30 08:27:41 CET 2010 + - the revents argument did not stringify correctly, as only the + numeric value was updated, while the string value was kept from + previous invocations. + +4.01 Sun Dec 5 12:42:13 CET 2010 + - fully support EV_COMPAT3=0. + - default_fork was stupidly defined as inline. + - ask cpan to upgrade AnyEvent if < 5.29. + - support EV_EXTRA_DEFS during configuration. + - support -DEV_NO_LOOPS for snakker build. + +4.00 Mon Oct 25 13:30:09 CEST 2010 + - many API changes, see the manual. + - (libev) lots and lots of bugfixes, see the ev documentation. + - fix a bug where inotify usage would parse the same event + multiple times, causing various forms of breakage. + - greatly reduce stack usage for inotify (8kb to <0.5kb). + - expose ev_depth and ev_verify via the XS API. + - implement ev_cleanup watchers. + - (libev) ev_embed_stop did not correctly stop the watcher. + - (libev) disable poll backend on AIX. + - (libev) rename EV_TIMEOUT to EV_TIMER. + - (libev) add section on accept() problems to the manpage. + - (libev) no child watchers on win32. + - make code more aliasing compliant, in case perl is ever + translated to C. + - document the EV::CHECK runtime unavailability. + - ported to minix 3.1.7. + +3.9 Thu Dec 31 07:59:59 CET 2009 + - disable t/07* under automatic testing. + - increase t/09* timeouts as netbsd has *horribly* broken + select/kevent that *usually* sleep >>0.6s instead of 0.3. + - add constants EV::FLAG_NOSIGFD, EV::FLAG_NOINOTIFY and + EV::BACKEND_ALL. + - (libev) signalfd is no longer used by default. + - (libev) backport inotify code to C89. + - (libev) inotify file descriptors could leak into child processes. + - (libev) ev_stat watchers could keep an errornous extra ref on the loop. + - (libev) take advantage of inotify_init1, if available. + - (libev) the signal handling pipe wasn't always initialised under windows. + - changed minimum glibc requirement from glibc 2.9 to 2.7, for signalfd. + - (libev) only replace ev_stat.prev when we detect an actual difference. + +3.8 Sun Aug 9 15:30:10 CEST 2009 + - implement $loop->signal/signal_ns. + - (libev) incompatible change: do not necessarily reset signal + handler to SIG_DFL when a sighandler is stopped. + - (libev) ev_default_destroy did not properly free or zero some + members, potentially causing crashes and memory corruption on + repated ev_default_destroy/ev_default_loop calls. + - (libev) take advantage of signalfd on GNU/Linux systems. + - (libev) document that the signal mask might be in an unspecified + state when using libev's signal handling. + - (libev) take advantage of some GNU/Linux calls to set + cloexec/nonblock on fd creation, to avoid race conditions. + - implement internal glue code to interface more efficiently + with AnyEvent. + +3.7 Fri Jul 17 16:49:16 CEST 2009 + - add EV::loop_verify and EV::loop_depth. + - use output filehandle for i/o watchers waiting + for EV_WRITE, otherwise input filehandle. + - use common schmorp.h header. + - add EV::Timer->remaining. + - allow for subclassing of EV::Loop (see the exciting + EV::Loop::Async module for an example). + - added EV::invoke_pending and EV::pending_count. + + - (libev) ev_unloop and ev_loop wrongly used a global variable to + exit loops, instead of using a per-loop variable. + - (libev) the ev_set_io_collect_interval interpretation has changed. + - add new functionality: EV::invoke_pending, EV::pending_count. + - add $timer->remaining. + - add EV::loop_depth. + - (libev) calling unloop in fork/prepare watchers will no longer poll + for new events. + - (libev) use GetSystemTimeAsFileTime instead of _timeb on windows, + for slightly higher accuracy. + - (libev) actually 0-initialise struct sigaction when installing + signals. + +3.6 Tue Apr 28 02:50:37 CEST 2009 + - keepalive(0) could decrease the refcount of the loop + permanently. + - add ev_suspend/ev_resume, also make ev_now_update + accessible via the XS API. + - most EV:: constants were missing and have been + added :/. + - add EV::VERSION_MAJOR/VERSION_MINOR constants. + - (libev) multiple timers becoming ready within an event loop + iteration will be invoked in the "correct" order now. + - (libev) do not leave the event loop early just because we have + no active watchers, fixing a problem when embedding a kqueue + loop that has active kernel events but no registered watchers + (reported by blacksand blacksand). + - (libev) correctly zero the idx values for arrays, so destroying + and reinitialising the default loop actually works (patch by + Malek Hadj-Ali). + - (libev) new EV::CUSTOM revents flag for use by applications. + - (libev) add documentation section about priorites. + - (libev) add a glossary to the dcoumentation. + - (libev) extend the ev_fork description slightly. + - (libev) optimize a jump out of call_pending. + - t/03_keepalive could fail when there was no actual error. + +3.53 Sun Feb 15 02:38:20 CET 2009 + - (libev) on win32, the event loop creation could randomly fail + due to an initialised variable having the wrong value. + - (libev) probe for CLOCK_REALTIME support at runtime as well and + fall back to gettimeofday if there is an error, to support older + operating systems with newer header files/libraries. + - prefer gettimeofday over clock_gettime by default. + +3.52 Wed Jan 7 21:46:14 CET 2009 + - (libev) fix some issues in the select backend when in fd_set mode. + - (libev) due to a thinko, instead of disabling everything but + select on the borked OS X platform, everything but select was + allowed (reported by Emanuele Giaquinta). + - (libev) actually verify that local and remote port are matching in + libev's socketpair emulation, which makes denial-of-service + attacks harder (but not impossible - it's windows). Make sure + it even works under vista, which thinks that getpeer/sockname + should return fantasy port numbers. + +3.51 Wed Dec 24 23:01:59 CET 2008 + - do not cache the arguments passed to callbacks if the refcount + indicates that the callback has stolen them. + - (libev) try to avoid librt on GNU/Linux. + - (libev) check port_getn return value dfferently, might potentially + avoid problems. + - (libev) fix a bug with stat watchers possibly causing freezes. + - (libev) work around OS X 10.5 breaking poll, now select is the + only viable choice left on that pile of garbage. + - play tester whore: disable some tests that typically fail only + on cpan tester machines. + +3.49 Wed Nov 19 11:26:53 CET 2008 + - fix typos in manpage (Alex Efros). + - increase timing even further, for the ever-overloaded cpan-tester + machines, and to the detriment of everybody else who wants a fast + make test. + - possible 5.6 compatibility. + - (libev) use inotify even on buggy kernels, but don't rely on it. + - (libev) use inotify only as an added hint on network filesystems. + +3.48 Thu Oct 30 09:09:48 CET 2008 + - (libev) use a generation counter to detect spurious epoll events + and recreate the kernel in such a case (sorry, it's slow, but + I didn't design epoll...). + - (libev) optimise away an EPOLL_CTL_ADD/MOD combo in the epoll + backend in some cases. + - (libev) use memset to initialise most arrays now and do away + with the init functions. + - speed up event callback invocation further (~15%), by + not creating the object reference each time. + - EV::sleep was documented, but not implemented. fun. + +3.45 Tue Oct 21 22:20:39 CEST 2008 + - (libev) disable inotify usage on linux <2.6.25 (kernel bug). + - (libev) ev_embed will now automatically follow fork. + - (libev) ev_once will now pass both io and timeout events to + the callback when both happen concurrently, instead of giving + one precedence. + - install C library documentation as EV::libev manpage (sorry, oesi). + - (libev) fix a minor performance bug in ev_stat handling. + +3.44 Mon Sep 29 05:16:31 CEST 2008 + - (libev) add EV::now_update and $loop->now_update. + +3.431 Sun Jul 13 00:19:02 CEST 2008 + - made the EV::embed callback optional again. reported by + Vladimir Timofeev. + +3.43 Tue Jul 8 20:56:31 CEST 2008 + - disabled warnings in EV.pm, the CHECK issue is now understood + and harmless. + +3.42 Mon May 26 07:36:46 CEST 2008 + - (libev) work around another bug in windows perls and + windows itself: failed connects do NOT set read or write + flags in select, but this version of libev will. + +3.41 Thu May 22 01:39:40 CEST 2008 + - (libev) fix many heap-related bugs (timers, periodics). + - (libev) improve timing stability of timers and periodics. + - expose ev_loop_verify to perl code. + - clarify documentation for periodic reschedule callbacks. + - verify that the passed callback argument is indeed a code + reference, for earlier error reporting and a nice calling + speed increase (as well as saving memory). + +3.4 Tue May 20 21:51:55 CEST 2008 + - (libev) work around both a windows bug and a bug in perl's + select on windows when not waiting for any file descriptors. + - bundle ev.pod into the tarball, just to increase its size + (and for the poor internetless person). + +3.33 Sun May 18 12:43:04 CEST 2008 + - (libev) use numerous enhancements such as a more + cache-friendly 4-heap and heap index caching for timers. + - remove undocumented ev_timer->at accessor. + +3.31 Wed Apr 16 20:48:59 CEST 2008 + - (libev) post-last-minute fix for ev_poll.c problem. + +3.3 Wed Apr 16 19:04:47 CEST 2008 + - (libev) linux eventfd support. + - (libev) inline more with C99 compilers. + - (libev) work around a number of bugs in valgrind. + - (libev) work around broken realloc on openbsd and darwin. + - added example to EV::MakeMaker manpage. + - add async_pending method. + +3.2 Wed Apr 2 17:08:16 CEST 2008 + - "ported" again to the Microsoft "C" language. + - relax testsuite timing for the benefit of freebsd users once more. + - fix EVAPI's ev_time and ev_sleep macros. + - (libev) fix select backend on 64 bit architetcures. + - (libev) ev_loop flags are now local to each invocation. + +3.1 Sat Mar 8 11:41:14 CET 2008 + - add ev_sync_* and ev_fork_* to EVAPI.h. + - provide EV::Embed->sweep method. + - new watcher type: async (not very useful in perl). + +3.0 Mon Jan 28 13:23:11 CET 2008 + - upgrade to libev-3.0. + - change child handler to incorporate tracing flag. + +2.01 Mon Dec 31 01:59:19 CET 2007 + - found a minor problem in the testsuite that is only + caught by new Test::Harness versions (reported by Andreas + König). + +2.0 Sat Dec 22 17:47:03 CET 2007 + - no longer force kqueue when enabled, enable it + on more systems (as its now by default not used on most). - expose fork watchers. - switch to libev's MULTIPLICITY API. - use a slightly different include file name strategy. @@ -9,21 +259,17 @@ - 5% watcher management speedup due to callback optimisation when inline closures are used, 5% slowdown due to multiplicity. - very minimal support for dynamic event loops and embed watchers. - - (libev) renamed ev_embed.loop to other. - - (libev) added exported Symbol tables. - - (libev) undefine member wrapper macros at the end of ev.c. - - (libev) respect EV_H in ev++.h. + - fix name of prepare start/stop methods. + - create and export EV::sleep and EV::set_*_collect_interval. + - fix typos in manpage (Alex Efros). 1.86 Tue Dec 18 02:36:57 CET 2007 - - (libev) fix memleak on loop destroy (not relevant for perl). - add periodic->at methods. 1.85 Fri Dec 14 20:32:40 CET 2007 - further optimise epoll backend by adding a heuristic that avoids EPOLL_CTL_DEL calls if possible. - EV::signal->start was not async-signal safe. - - (libev) fix some aliasing issues w.r.t. timers and periodics - (not relevant for perl). - optimise start/stop when the fd hasn't changed. 1.8 Tue Dec 11 22:17:46 CET 2007