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Revision: 1.310
Committed: Sun Dec 20 21:15:04 2015 UTC (8 years, 6 months ago) by root
Branch: MAIN
CVS Tags: rel-4_22
Changes since 1.309: +1 -1 lines
Log Message:
*** empty log message ***

File Contents

# Content
1 Revision history for libev, a high-performance and full-featured event loop.
2
3 TODO: ev_loop_wakeup
4 TODO: EV_STANDALONE == NO_HASSEL (do not use clock_gettime in ev_standalone)
5 TODO: faq, process a thing in each iteration
6 TODO: dbeugging tips, ev_verify, ev_init twice
7 TODO: ev_break for immediate exit (EVBREAK_NOW?)
8 TODO: ev_feed_child_event
9 TODO: document the special problem of signals around fork.
10 TODO: store pid for each signal
11 TODO: document file descriptor usage per loop
12 TODO: store loop pid_t and compare isndie signal handler,store 1 for same, 2 for differign pid, clean up in loop_fork
13 TODO: embed watchers need updating when fd changes
14 TODO: document portability requirements for atomic pointer access
15 TODO: document requirements for function pointers and calling conventions.
16
17 4.22 Sun Dec 20 22:11:50 CET 2015
18 - when epoll detects unremovable fds in the fd set, rebuild
19 only the epoll descriptor, not the signal pipe, to avoid
20 SIGPIPE in ev_async_send. This doesn't solve it on fork,
21 so document what needs to be done in ev_loop_fork
22 (analyzed by Benjamin Mahler).
23 - remove superfluous sys/timeb.h include on win32
24 (analyzed by Jason Madden).
25 - updated libecb.
26
27 4.20 Sat Jun 20 13:01:43 CEST 2015
28 - prefer noexcept over throw () with C++ 11.
29 - update ecb.h due to incompatibilities with c11.
30 - fix a potential aliasing issue when reading and writing
31 watcher callbacks.
32
33 4.19 Thu Sep 25 08:18:25 CEST 2014
34 - ev.h wasn't valid C++ anymore, which tripped compilers other than
35 clang, msvc or gcc (analyzed by Raphael 'kena' Poss). Unfortunately,
36 C++ doesn't support typedefs for function pointers fully, so the affected
37 declarations have to spell out the types each time.
38 - when not using autoconf, tighten the check for clock_gettime and related
39 functionality.
40
41 4.18 Fri Sep 5 17:55:26 CEST 2014
42 - events on files were not always generated properly with the
43 epoll backend (testcase by Assaf Inbal).
44 - mark event pipe fd as cloexec after a fork (analyzed by Sami Farin).
45 - (ecb) support m68k, m88k and sh (patch by Miod Vallat).
46 - use a reasonable fallback for EV_NSIG instead of erroring out
47 when we can't detect the signal set size.
48 - in the absence of autoconf, do not use the clock syscall
49 on glibc >= 2.17 (avoids the syscall AND -lrt on systems
50 doing clock_gettime in userspace).
51 - ensure extern "C" function pointers are used for externally-visible
52 loop callbacks (not watcher callbacks yet).
53 - (ecb) work around memory barriers and volatile apparently both being
54 broken in visual studio 2008 and later (analysed and patch by Nicolas Noble).
55
56 4.15 Fri Mar 1 12:04:50 CET 2013
57 - destroying a non-default loop would stop the global waitpid
58 watcher (Denis Bilenko).
59 - queueing pending watchers of higher priority from a watcher now invokes
60 them in a timely fashion (reported by Denis Bilenko).
61 - add throw() to all libev functions that cannot throw exceptions, for
62 further code size decrease when compiling for C++.
63 - add throw () to callbacks that must not throw exceptions (allocator,
64 syserr, loop acquire/release, periodic reschedule cbs).
65 - fix event_base_loop return code, add event_get_callback, event_base_new,
66 event_base_get_method calls to improve libevent 1.x emulation and add
67 some libevent 2.x functionality (based on a patch by Jeff Davey).
68 - add more memory fences to fix a bug reported by Jeff Davey. Better
69 be overfenced than underprotected.
70 - ev_run now returns a boolean status (true meaning watchers are
71 still active).
72 - ev_once: undef EV_ERROR in ev_kqueue.c, to avoid clashing with
73 libev's EV_ERROR (reported by 191919).
74 - (ecb) add memory fence support for xlC (Darin McBride).
75 - (ecb) add memory fence support for gcc-mips (Anton Kirilov).
76 - (ecb) add memory fence support for gcc-alpha (Christian Weisgerber).
77 - work around some kernels losing file descriptors by leaking
78 the kqueue descriptor in the child.
79 - work around linux inotify not reporting IN_ATTRIB changes for directories
80 in many cases.
81 - include sys/syscall.h instead of plain syscall.h.
82 - check for io watcher loops in ev_verify, check for the most
83 common reported usage bug in ev_io_start.
84 - choose socket vs. WSASocket at compiletime using EV_USE_WSASOCKET.
85 - always use WSASend/WSARecv directly on windows, hoping that this
86 works in all cases (unlike read/write/send/recv...).
87 - try to detect signals around a fork faster (test program by
88 Denis Bilenko).
89 - work around recent glibc versions that leak memory in realloc.
90 - rename ev::embed::set to ev::embed::set_embed to avoid clashing
91 the watcher base set (loop) method.
92 - rewrite the async/signal pipe logic to always keep a valid fd, which
93 simplifies (and hopefully correctifies :) the race checking
94 on fork, at the cost of one extra fd.
95 - add fat, msdos, jffs2, ramfs, ntfs and btrfs to the list of
96 inotify-supporting filesystems.
97 - move orig_CFLAGS assignment to after AC_INIT, as newer autoconf
98 versions ignore it before
99 (https://bugzilla.redhat.com/show_bug.cgi?id=908096).
100 - add some untested android support.
101 - enum expressions must be of type int (reported by Juan Pablo L).
102
103 4.11 Sat Feb 4 19:52:39 CET 2012
104 - INCOMPATIBLE CHANGE: ev_timer_again now clears the pending status, as
105 was documented already, but not implemented in the repeating case.
106 - new compiletime symbols: EV_NO_SMP and EV_NO_THREADS.
107 - fix a race where the workaround against the epoll fork bugs
108 caused signals to not be handled anymore.
109 - correct backend_fudge for most backends, and implement a windows
110 specific workaround to avoid looping because we call both
111 select and Sleep, both with different time resolutions.
112 - document range and guarantees of ev_sleep.
113 - document reasonable ranges for periodics interval and offset.
114 - rename backend_fudge to backend_mintime to avoid future confusion :)
115 - change the default periodic reschedule function to hopefully be more
116 exact and correct even in corner cases or in the far future.
117 - do not rely on -lm anymore: use it when available but use our
118 own floor () if it is missing. This should make it easier to embed,
119 as no external libraries are required.
120 - strategically import macros from libecb and mark rarely-used functions
121 as cache-cold (saving almost 2k code size on typical amd64 setups).
122 - add Symbols.ev and Symbols.event files, that were missing.
123 - fix backend_mintime value for epoll (was 1/1024, is 1/1000 now).
124 - fix #3 "be smart about timeouts" to not "deadlock" when
125 timeout == now, also improve the section overall.
126 - avoid "AVOIDING FINISHING BEFORE RETURNING" idiom.
127 - support new EV_API_STATIC mode to make all libev symbols
128 static.
129 - supply default CFLAGS of -g -O3 with gcc when original CFLAGS
130 were empty.
131
132 4.04 Wed Feb 16 09:01:51 CET 2011
133 - fix two problems in the native win32 backend, where reuse of fd's
134 with different underlying handles caused handles not to be removed
135 or added to the select set (analyzed and tested by Bert Belder).
136 - do no rely on ceil() in ev_e?poll.c.
137 - backport libev to HP-UX versions before 11 v3.
138 - configure did not detect nanosleep and clock_gettime properly when
139 they are available in the libc (as opposed to -lrt).
140
141 4.03 Tue Jan 11 14:37:25 CET 2011
142 - officially support polling files with all backends.
143 - support files, /dev/zero etc. the same way as select in the epoll
144 backend, by generating events on our own.
145 - ports backend: work around solaris bug 6874410 and many related ones
146 (EINTR, maybe more), with no performance loss (note that the solaris
147 bug report is actually wrong, reality is far more bizarre and broken
148 than that).
149 - define EV_READ/EV_WRITE as macros in event.h, as some programs use
150 #ifdef to test for them.
151 - new (experimental) function: ev_feed_signal.
152 - new (to become default) EVFLAG_NOSIGMASK flag.
153 - new EVBACKEND_MASK symbol.
154 - updated COMMON IDIOMS SECTION.
155
156 4.01 Fri Nov 5 21:51:29 CET 2010
157 - automake fucked it up, apparently, --add-missing -f is not quite enough
158 to make it update its files, so 4.00 didn't install ev++.h and
159 event.h on make install. grrr.
160 - ev_loop(count|depth) didn't return anything (Robin Haberkorn).
161 - change EV_UNDEF to 0xffffffff to silence some overzealous compilers.
162 - use "(libev) " prefix for all libev error messages now.
163
164 4.00 Mon Oct 25 12:32:12 CEST 2010
165 - "PORTING FROM LIBEV 3.X TO 4.X" (in ev.pod) is recommended reading.
166 - ev_embed_stop did not correctly stop the watcher (very good
167 testcase by Vladimir Timofeev).
168 - ev_run will now always update the current loop time - it erroneously
169 didn't when idle watchers were active, causing timers not to fire.
170 - fix a bug where a timeout of zero caused the timer not to fire
171 in the libevent emulation (testcase by Péter Szabó).
172 - applied win32 fixes by Michael Lenaghan (also James Mansion).
173 - replace EV_MINIMAL by EV_FEATURES.
174 - prefer EPOLL_CTL_ADD over EPOLL_CTL_MOD in some more cases, as it
175 seems the former is *much* faster than the latter.
176 - linux kernel version detection (for inotify bug workarounds)
177 did not work properly.
178 - reduce the number of spurious wake-ups with the ports backend.
179 - remove dependency on sys/queue.h on freebsd (patch by Vanilla Hsu).
180 - do async init within ev_async_start, not ev_async_set, which avoids
181 an API quirk where the set function must be called in the C++ API
182 even when there is nothing to set.
183 - add (undocumented) EV_ENABLE when adding events with kqueue,
184 this might help with OS X, which seems to need it despite documenting
185 not to need it (helpfully pointed out by Tilghman Lesher).
186 - do not use poll by default on freebsd, it's broken (what isn't
187 on freebsd...).
188 - allow to embed epoll on kernels >= 2.6.32.
189 - configure now prepends -O3, not appends it, so one can still
190 override it.
191 - ev.pod: greatly expanded the portability section, added a porting
192 section, a description of watcher states and made lots of minor fixes.
193 - disable poll backend on AIX, the poll header spams the namespace
194 and it's not worth working around dead platforms (reported
195 and analyzed by Aivars Kalvans).
196 - improve header file compatibility of the standalone eventfd code
197 in an obscure case.
198 - implement EV_AVOID_STDIO option.
199 - do not use sscanf to parse linux version number (smaller, faster,
200 no sscanf dependency).
201 - new EV_CHILD_ENABLE and EV_SIGNAL_ENABLE configurable settings.
202 - update libev.m4 HAVE_CLOCK_SYSCALL test for newer glibcs.
203 - add section on accept() problems to the manpage.
204 - rename EV_TIMEOUT to EV_TIMER.
205 - rename ev_loop_count/depth/verify/loop/unloop.
206 - remove ev_default_destroy and ev_default_fork.
207 - switch to two-digit minor version.
208 - work around an apparent gentoo compiler bug.
209 - define _DARWIN_UNLIMITED_SELECT. just so.
210 - use enum instead of #define for most constants.
211 - improve compatibility to older C++ compilers.
212 - (experimental) ev_run/ev_default_loop/ev_break/ev_loop_new have now
213 default arguments when compiled as C++.
214 - enable automake dependency tracking.
215 - ev_loop_new no longer leaks memory when loop creation failed.
216 - new ev_cleanup watcher type.
217
218 3.9 Thu Dec 31 07:59:59 CET 2009
219 - signalfd is no longer used by default and has to be requested
220 explicitly - this means that easy to catch bugs become hard to
221 catch race conditions, but the users have spoken.
222 - point out the unspecified signal mask in the documentation, and
223 that this is a race condition regardless of EV_SIGNALFD.
224 - backport inotify code to C89.
225 - inotify file descriptors could leak into child processes.
226 - ev_stat watchers could keep an erroneous extra ref on the loop,
227 preventing exit when unregistering all watchers (testcases
228 provided by ry@tinyclouds.org).
229 - implement EV_WIN32_HANDLE_TO_FD and EV_WIN32_CLOSE_FD configuration
230 symbols to make it easier for apps to do their own fd management.
231 - support EV_IDLE_ENABLE being disabled in ev++.h
232 (patch by Didier Spezia).
233 - take advantage of inotify_init1, if available, to set cloexec/nonblock
234 on fd creation, to avoid races.
235 - the signal handling pipe wasn't always initialised under windows
236 (analysed by lekma).
237 - changed minimum glibc requirement from glibc 2.9 to 2.7, for
238 signalfd.
239 - add missing string.h include (Denis F. Latypoff).
240 - only replace ev_stat.prev when we detect an actual difference,
241 so prev is (almost) always different to attr. this might
242 have caused the problems with 04_stat.t.
243 - add ev::timer->remaining () method to C++ API.
244
245 3.8 Sun Aug 9 14:30:45 CEST 2009
246 - incompatible change: do not necessarily reset signal handler
247 to SIG_DFL when a sighandler is stopped.
248 - ev_default_destroy did not properly free or zero some members,
249 potentially causing crashes and memory corruption on repeated
250 ev_default_destroy/ev_default_loop calls.
251 - take advantage of signalfd on GNU/Linux systems.
252 - document that the signal mask might be in an unspecified
253 state when using libev's signal handling.
254 - take advantage of some GNU/Linux calls to set cloexec/nonblock
255 on fd creation, to avoid race conditions.
256
257 3.7 Fri Jul 17 16:36:32 CEST 2009
258 - ev_unloop and ev_loop wrongly used a global variable to exit loops,
259 instead of using a per-loop variable (bug caught by accident...).
260 - the ev_set_io_collect_interval interpretation has changed.
261 - add new functionality: ev_set_userdata, ev_userdata,
262 ev_set_invoke_pending_cb, ev_set_loop_release_cb,
263 ev_invoke_pending, ev_pending_count, together with a long example
264 about thread locking.
265 - add ev_timer_remaining (as requested by Denis F. Latypoff).
266 - add ev_loop_depth.
267 - calling ev_unloop in fork/prepare watchers will no longer poll
268 for new events.
269 - Denis F. Latypoff corrected many typos in example code snippets.
270 - honor autoconf detection of EV_USE_CLOCK_SYSCALL, also double-
271 check that the syscall number is available before trying to
272 use it (reported by ry@tinyclouds).
273 - use GetSystemTimeAsFileTime instead of _timeb on windows, for
274 slightly higher accuracy.
275 - properly declare ev_loop_verify and ev_now_update even when
276 !EV_MULTIPLICITY.
277 - do not compile in any priority code when EV_MAXPRI == EV_MINPRI.
278 - support EV_MINIMAL==2 for a reduced API.
279 - actually 0-initialise struct sigaction when installing signals.
280 - add section on hibernate and stopped processes to ev_timer docs.
281
282 3.6 Tue Apr 28 02:49:30 CEST 2009
283 - multiple timers becoming ready within an event loop iteration
284 will be invoked in the "correct" order now.
285 - do not leave the event loop early just because we have no active
286 watchers, fixing a problem when embedding a kqueue loop
287 that has active kernel events but no registered watchers
288 (reported by blacksand blacksand).
289 - correctly zero the idx values for arrays, so destroying and
290 reinitialising the default loop actually works (patch by
291 Malek Hadj-Ali).
292 - implement ev_suspend and ev_resume.
293 - new EV_CUSTOM revents flag for use by applications.
294 - add documentation section about priorities.
295 - add a glossary to the documentation.
296 - extend the ev_fork description slightly.
297 - optimize a jump out of call_pending.
298
299 3.53 Sun Feb 15 02:38:20 CET 2009
300 - fix a bug in event pipe creation on win32 that would cause a
301 failed assertion on event loop creation (patch by Malek Hadj-Ali).
302 - probe for CLOCK_REALTIME support at runtime as well and fall
303 back to gettimeofday if there is an error, to support older
304 operating systems with newer header files/libraries.
305 - prefer gettimeofday over clock_gettime with USE_CLOCK_SYSCALL
306 (default most everywhere), otherwise not.
307
308 3.52 Wed Jan 7 21:43:02 CET 2009
309 - fix compilation of select backend in fd_set mode when NFDBITS is
310 missing (to get it to compile on QNX, reported by Rodrigo Campos).
311 - better select-nfds handling when select backend is in fd_set mode.
312 - diagnose fd_set overruns when select backend is in fd_set mode.
313 - due to a thinko, instead of disabling everything but
314 select on the borked OS X platform, everything but select was
315 allowed (reported by Emanuele Giaquinta).
316 - actually verify that local and remote port are matching in
317 libev's socketpair emulation, which makes denial-of-service
318 attacks harder (but not impossible - it's windows). Make sure
319 it even works under vista, which thinks that getpeer/sockname
320 should return fantasy port numbers.
321 - include "libev" in all assertion messages for potentially
322 clearer diagnostics.
323 - event_get_version (libevent compatibility) returned
324 a useless string instead of the expected version string
325 (patch by W.C.A. Wijngaards).
326
327 3.51 Wed Dec 24 23:00:11 CET 2008
328 - fix a bug where an inotify watcher was added twice, causing
329 freezes on hash collisions (reported and analysed by Graham Leggett).
330 - new config symbol, EV_USE_CLOCK_SYSCALL, to make libev use
331 a direct syscall - slower, but no dependency on librt et al.
332 - assume negative return values != -1 signals success of port_getn
333 (http://cvs.epicsol.org/cgi/viewcvs.cgi/epic5/source/newio.c?rev=1.52)
334 (no known failure reports, but it doesn't hurt).
335 - fork detection in ev_embed now stops and restarts the watcher
336 automatically.
337 - EXPERIMENTAL: default the method to operator () in ev++.h,
338 to make it nicer to use functors (requested by Benedek László).
339 - fixed const object callbacks in ev++.h.
340 - replaced loop_ref argument of watcher.set (loop) by a direct
341 ev_loop * in ev++.h, to avoid clashes with functor patch.
342 - do not try to watch the empty string via inotify.
343 - inotify watchers could be leaked under certain circumstances.
344 - OS X 10.5 is actually even more broken than earlier versions,
345 so fall back to select on that piece of garbage.
346 - fixed some weirdness in the ev_embed documentation.
347
348 3.49 Wed Nov 19 11:26:53 CET 2008
349 - ev_stat watchers will now use inotify as a mere hint on
350 kernels <2.6.25, or if the filesystem is not in the
351 "known to be good" list.
352 - better mingw32 compatibility (it's not as borked as native win32)
353 (analysed by Roger Pack).
354 - include stdio.h in the example program, as too many people are
355 confused by the weird C language otherwise. I guess the next thing
356 I get told is that the "..." ellipses in the examples don't compile
357 with their C compiler.
358
359 3.48 Thu Oct 30 09:02:37 CET 2008
360 - further optimise away the EPOLL_CTL_ADD/MOD combo in the epoll
361 backend by assuming the kernel event mask hasn't changed if
362 ADD fails with EEXIST.
363 - work around spurious event notification bugs in epoll by using
364 a 32-bit generation counter. recreate kernel state if we receive
365 spurious notifications or unwanted events. this is very costly,
366 but I didn't come up with this horrible design.
367 - use memset to initialise most arrays now and do away with the
368 init functions.
369 - expand time-out strategies into a "Be smart about timeouts" section.
370 - drop the "struct" from all ev_watcher declarations in the
371 documentation and did other clarifications (yeah, it was a mistake
372 to have a struct AND a function called ev_loop).
373 - fix a bug where ev_default would not initialise the default
374 loop again after it was destroyed with ev_default_destroy.
375 - rename syserr to ev_syserr to avoid name clashes when embedding,
376 do similar changes for event.c.
377
378 3.45 Tue Oct 21 21:59:26 CEST 2008
379 - disable inotify usage on linux <2.6.25, as it is broken
380 (reported by Yoann Vandoorselaere).
381 - ev_stat erroneously would try to add inotify watchers
382 even when inotify wasn't available (this should only
383 have a performance impact).
384 - ev_once now passes both timeout and io to the callback if both
385 occur concurrently, instead of giving timeouts precedence.
386 - disable EV_USE_INOTIFY when sys/inotify.h is too old.
387
388 3.44 Mon Sep 29 05:18:39 CEST 2008
389 - embed watchers now automatically invoke ev_loop_fork on the
390 embedded loop when the parent loop forks.
391 - new function: ev_now_update (loop).
392 - verify_watcher was not marked static.
393 - improve the "associating..." manpage section.
394 - documentation tweaks here and there.
395
396 3.43 Sun Jul 6 05:34:41 CEST 2008
397 - include more include files on windows to get struct _stati64
398 (reported by Chris Hulbert, but doesn't quite fix his issue).
399 - add missing #include <io.h> in ev.c on windows (reported by
400 Matt Tolton).
401
402 3.42 Tue Jun 17 12:12:07 CEST 2008
403 - work around yet another windows bug: FD_SET actually adds fd's
404 multiple times to the fd_*SET*, despite official MSN docs claiming
405 otherwise. Reported and well-analysed by Matt Tolton.
406 - define NFDBITS to 0 when EV_SELECT_IS_WINSOCKET to make it compile
407 (reported any analysed by Chris Hulbert).
408 - fix a bug in ev_ebadf (this function is only used to catch
409 programming errors in the libev user). reported by Matt Tolton.
410 - fix a bug in fd_intern on win32 (could lead to compile errors
411 under some circumstances, but would work correctly if it compiles).
412 reported by Matt Tolton.
413 - (try to) work around missing lstat on windows.
414 - pass in the write fd set as except fd set under windows. windows
415 is so uncontrollably lame that it requires this. this means that
416 switching off oobinline is not supported (but tcp/ip doesn't
417 have oob, so that would be stupid anyways.
418 - use posix module symbol to auto-detect monotonic clock presence
419 and some other default values.
420
421 3.41 Fri May 23 18:42:54 CEST 2008
422 - work around an obscure bug in winsocket select: if you
423 provide only empty fd sets then select returns WSAEINVAL. how sucky.
424 - improve timer scheduling stability and reduce use of time_epsilon.
425 - use 1-based 2-heap for EV_MINIMAL, simplifies code, reduces
426 codesize and makes for better cache-efficiency.
427 - use 3-based 4-heap for !EV_MINIMAL. this makes better use
428 of cpu cache lines and gives better growth behaviour than
429 2-based heaps.
430 - cache timestamp within heap for !EV_MINIMAL, to avoid random
431 memory accesses.
432 - document/add EV_USE_4HEAP and EV_HEAP_CACHE_AT.
433 - fix a potential aliasing issue in ev_timer_again.
434 - add/document ev_periodic_at, retract direct access to ->at.
435 - improve ev_stat docs.
436 - add portability requirements section.
437 - fix manpage headers etc.
438 - normalise WSA error codes to lower range on windows.
439 - add consistency check code that can be called automatically
440 or on demand to check for internal structures (ev_loop_verify).
441
442 3.31 Wed Apr 16 20:45:04 CEST 2008
443 - added last minute fix for ev_poll.c by Brandon Black.
444
445 3.3 Wed Apr 16 19:04:10 CEST 2008
446 - event_base_loopexit should return 0 on success
447 (W.C.A. Wijngaards).
448 - added linux eventfd support.
449 - try to autodetect epoll and inotify support
450 by libc header version if not using autoconf.
451 - new symbols: EV_DEFAULT_UC and EV_DEFAULT_UC_.
452 - declare functions defined in ev.h as inline if
453 C99 or gcc are available.
454 - enable inlining with gcc versions 2 and 3.
455 - work around broken poll implementations potentially
456 not clearing revents field in ev_poll (Brandon Black)
457 (no such systems are known at this time).
458 - work around a bug in realloc on openbsd and darwin,
459 also makes the erroneous valgrind complaints
460 go away (noted by various people).
461 - fix ev_async_pending, add c++ wrapper for ev_async
462 (based on patch sent by Johannes Deisenhofer).
463 - add sensible set method to ev::embed.
464 - made integer constants type int in ev.h.
465
466 3.2 Wed Apr 2 17:11:19 CEST 2008
467 - fix a 64 bit overflow issue in the select backend,
468 by using fd_mask instead of int for the mask.
469 - rename internal sighandler to avoid clash with very old perls.
470 - entering ev_loop will not clear the ONESHOT or NONBLOCKING
471 flags of any outer loops anymore.
472 - add ev_async_pending.
473
474 3.1 Thu Mar 13 13:45:22 CET 2008
475 - implement ev_async watchers.
476 - only initialise signal pipe on demand.
477 - make use of sig_atomic_t configurable.
478 - improved documentation.
479
480 3.0 Mon Jan 28 13:14:47 CET 2008
481 - API/ABI bump to version 3.0.
482 - ev++.h includes "ev.h" by default now, not <ev.h>.
483 - slightly improved documentation.
484 - speed up signal detection after a fork.
485 - only optionally return trace status changed in ev_child
486 watchers.
487 - experimental (and undocumented) loop wrappers for ev++.h.
488
489 2.01 Tue Dec 25 08:04:41 CET 2007
490 - separate Changes file.
491 - fix ev_path_set => ev_stat_set typo.
492 - remove event_compat.h from the libev tarball.
493 - change how include files are found.
494 - doc updates.
495 - update licenses, explicitly allow for GPL relicensing.
496
497 2.0 Sat Dec 22 17:47:03 CET 2007
498 - new ev_sleep, ev_set_(io|timeout)_collect_interval.
499 - removed epoll from embeddable fd set.
500 - fix embed watchers.
501 - renamed ev_embed.loop to other.
502 - added exported Symbol tables.
503 - undefine member wrapper macros at the end of ev.c.
504 - respect EV_H in ev++.h.
505
506 1.86 Tue Dec 18 02:36:57 CET 2007
507 - fix memleak on loop destroy (not relevant for perl).
508
509 1.85 Fri Dec 14 20:32:40 CET 2007
510 - fix some aliasing issues w.r.t. timers and periodics
511 (not relevant for perl).
512
513 (for historic versions refer to EV/Changes, found in the Perl interface)
514
515 0.1 Wed Oct 31 21:31:48 CET 2007
516 - original version; hacked together in <24h.
517