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Revision: 1.328
Committed: Mon Jun 24 22:27:29 2019 UTC (4 years, 10 months ago) by root
Branch: MAIN
Changes since 1.327: +2 -0 lines
Log Message:
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File Contents

# User Rev Content
1 root 1.14 Revision history for libev, a high-performance and full-featured event loop.
2 root 1.1
3 root 1.328 4.26 (no standalone release)
4     - update to libec 0x00010006.
5 root 1.326 - new experimental linux aio backend (linux 4.18+).
6 root 1.324 - removed redundant 0-ptr check in ev_once.
7 root 1.325 - updated/extended ev_set_allocator documentation.
8 root 1.326 - replaced EMPTY2 macro by array_needsize_noinit.
9     - minor code cleanups.
10 root 1.327 - epoll backend now uses epoll_create1 also after fork.
11 root 1.324
12 root 1.320 4.25 Fri Dec 21 07:49:20 CET 2018
13     - INCOMPATIBLE CHANGE: EV_THROW was renamed to EV_NOEXCEPT
14 root 1.323 (EV_THROW still provided) and now uses noexcept on C++11 or newer.
15 root 1.320 - move the darwin select workaround highe rin ev.c, as newer versions of
16 root 1.316 darwin managed to break their broken select even more.
17 root 1.314 - ANDROID => __ANDROID__ (reported by enh@google.com).
18 root 1.315 - disable epoll_create1 on android because it has broken header files
19     and google is unwilling to fix them (reported by enh@google.com).
20 root 1.317 - avoid a minor compilation warning on win32.
21 root 1.318 - c++: remove deprecated dynamic throw() specifications.
22     - c++: improve the (unsupported) bad_loop exception class.
23 root 1.319 - backport perl ev_periodic example to C, untested.
24 root 1.321 - update libecb, biggets change is to include a memory fence
25     in ECB_MEMORY_FENCE_RELEASE on x86/amd64.
26 root 1.322 - minor autoconf/automake modernisation.
27 root 1.314
28 root 1.313 4.24 Wed Dec 28 05:19:55 CET 2016
29     - bump version to 4.24, as the release tarball inexplicably
30     didn't have the right version in ev.h, even though the cvs-tagged
31     version did have the right one (reported by Ales Teska).
32    
33 root 1.312 4.23 Wed Nov 16 18:23:41 CET 2016
34 root 1.311 - move some declarations at the beginning to help certain retarded
35     microsoft compilers, even though their documentation claims
36     otherwise (reported by Ruslan Osmanov).
37    
38 root 1.310 4.22 Sun Dec 20 22:11:50 CET 2015
39 root 1.308 - when epoll detects unremovable fds in the fd set, rebuild
40     only the epoll descriptor, not the signal pipe, to avoid
41     SIGPIPE in ev_async_send. This doesn't solve it on fork,
42     so document what needs to be done in ev_loop_fork
43     (analyzed by Benjamin Mahler).
44     - remove superfluous sys/timeb.h include on win32
45     (analyzed by Jason Madden).
46 root 1.309 - updated libecb.
47 root 1.308
48 root 1.307 4.20 Sat Jun 20 13:01:43 CEST 2015
49 root 1.302 - prefer noexcept over throw () with C++ 11.
50 root 1.303 - update ecb.h due to incompatibilities with c11.
51 root 1.305 - fix a potential aliasing issue when reading and writing
52 root 1.304 watcher callbacks.
53 root 1.301
54 root 1.300 4.19 Thu Sep 25 08:18:25 CEST 2014
55 root 1.298 - ev.h wasn't valid C++ anymore, which tripped compilers other than
56 root 1.299 clang, msvc or gcc (analyzed by Raphael 'kena' Poss). Unfortunately,
57     C++ doesn't support typedefs for function pointers fully, so the affected
58     declarations have to spell out the types each time.
59 root 1.297 - when not using autoconf, tighten the check for clock_gettime and related
60     functionality.
61    
62 root 1.296 4.18 Fri Sep 5 17:55:26 CEST 2014
63 root 1.295 - events on files were not always generated properly with the
64     epoll backend (testcase by Assaf Inbal).
65 root 1.288 - mark event pipe fd as cloexec after a fork (analyzed by Sami Farin).
66 root 1.289 - (ecb) support m68k, m88k and sh (patch by Miod Vallat).
67 root 1.291 - use a reasonable fallback for EV_NSIG instead of erroring out
68     when we can't detect the signal set size.
69 root 1.292 - in the absence of autoconf, do not use the clock syscall
70     on glibc >= 2.17 (avoids the syscall AND -lrt on systems
71     doing clock_gettime in userspace).
72 root 1.293 - ensure extern "C" function pointers are used for externally-visible
73     loop callbacks (not watcher callbacks yet).
74 root 1.294 - (ecb) work around memory barriers and volatile apparently both being
75     broken in visual studio 2008 and later (analysed and patch by Nicolas Noble).
76 root 1.288
77 root 1.287 4.15 Fri Mar 1 12:04:50 CET 2013
78 root 1.271 - destroying a non-default loop would stop the global waitpid
79     watcher (Denis Bilenko).
80 root 1.266 - queueing pending watchers of higher priority from a watcher now invokes
81     them in a timely fashion (reported by Denis Bilenko).
82 root 1.261 - add throw() to all libev functions that cannot throw exceptions, for
83     further code size decrease when compiling for C++.
84     - add throw () to callbacks that must not throw exceptions (allocator,
85     syserr, loop acquire/release, periodic reschedule cbs).
86 root 1.256 - fix event_base_loop return code, add event_get_callback, event_base_new,
87     event_base_get_method calls to improve libevent 1.x emulation and add
88 root 1.273 some libevent 2.x functionality (based on a patch by Jeff Davey).
89 root 1.263 - add more memory fences to fix a bug reported by Jeff Davey. Better
90     be overfenced than underprotected.
91 root 1.256 - ev_run now returns a boolean status (true meaning watchers are
92     still active).
93 root 1.252 - ev_once: undef EV_ERROR in ev_kqueue.c, to avoid clashing with
94     libev's EV_ERROR (reported by 191919).
95 root 1.253 - (ecb) add memory fence support for xlC (Darin McBride).
96     - (ecb) add memory fence support for gcc-mips (Anton Kirilov).
97 root 1.259 - (ecb) add memory fence support for gcc-alpha (Christian Weisgerber).
98 root 1.254 - work around some kernels losing file descriptors by leaking
99     the kqueue descriptor in the child.
100 root 1.282 - work around linux inotify not reporting IN_ATTRIB changes for directories
101     in many cases.
102 root 1.262 - include sys/syscall.h instead of plain syscall.h.
103 root 1.268 - check for io watcher loops in ev_verify, check for the most
104     common reported usage bug in ev_io_start.
105 sf-exg 1.286 - choose socket vs. WSASocket at compiletime using EV_USE_WSASOCKET.
106 root 1.270 - always use WSASend/WSARecv directly on windows, hoping that this
107     works in all cases (unlike read/write/send/recv...).
108 root 1.274 - try to detect signals around a fork faster (test program by
109     Denis Bilenko).
110 root 1.275 - work around recent glibc versions that leak memory in realloc.
111 root 1.276 - rename ev::embed::set to ev::embed::set_embed to avoid clashing
112     the watcher base set (loop) method.
113 root 1.278 - rewrite the async/signal pipe logic to always keep a valid fd, which
114 sf-exg 1.286 simplifies (and hopefully correctifies :) the race checking
115 root 1.278 on fork, at the cost of one extra fd.
116 root 1.282 - add fat, msdos, jffs2, ramfs, ntfs and btrfs to the list of
117     inotify-supporting filesystems.
118 root 1.283 - move orig_CFLAGS assignment to after AC_INIT, as newer autoconf
119     versions ignore it before
120     (https://bugzilla.redhat.com/show_bug.cgi?id=908096).
121 root 1.284 - add some untested android support.
122 root 1.285 - enum expressions must be of type int (reported by Juan Pablo L).
123 root 1.253
124 root 1.250 4.11 Sat Feb 4 19:52:39 CET 2012
125 root 1.248 - INCOMPATIBLE CHANGE: ev_timer_again now clears the pending status, as
126     was documented already, but not implemented in the repeating case.
127 root 1.249 - new compiletime symbols: EV_NO_SMP and EV_NO_THREADS.
128 root 1.234 - fix a race where the workaround against the epoll fork bugs
129     caused signals to not be handled anymore.
130 root 1.229 - correct backend_fudge for most backends, and implement a windows
131     specific workaround to avoid looping because we call both
132     select and Sleep, both with different time resolutions.
133 root 1.230 - document range and guarantees of ev_sleep.
134 root 1.231 - document reasonable ranges for periodics interval and offset.
135     - rename backend_fudge to backend_mintime to avoid future confusion :)
136 root 1.225 - change the default periodic reschedule function to hopefully be more
137 root 1.226 exact and correct even in corner cases or in the far future.
138 root 1.225 - do not rely on -lm anymore: use it when available but use our
139 root 1.230 own floor () if it is missing. This should make it easier to embed,
140     as no external libraries are required.
141 root 1.232 - strategically import macros from libecb and mark rarely-used functions
142 sf-exg 1.239 as cache-cold (saving almost 2k code size on typical amd64 setups).
143 root 1.237 - add Symbols.ev and Symbols.event files, that were missing.
144 root 1.242 - fix backend_mintime value for epoll (was 1/1024, is 1/1000 now).
145 root 1.244 - fix #3 "be smart about timeouts" to not "deadlock" when
146     timeout == now, also improve the section overall.
147     - avoid "AVOIDING FINISHING BEFORE RETURNING" idiom.
148 root 1.245 - support new EV_API_STATIC mode to make all libev symbols
149     static.
150 root 1.251 - supply default CFLAGS of -g -O3 with gcc when original CFLAGS
151     were empty.
152 root 1.225
153 root 1.224 4.04 Wed Feb 16 09:01:51 CET 2011
154     - fix two problems in the native win32 backend, where reuse of fd's
155     with different underlying handles caused handles not to be removed
156     or added to the select set (analyzed and tested by Bert Belder).
157 root 1.221 - do no rely on ceil() in ev_e?poll.c.
158 root 1.222 - backport libev to HP-UX versions before 11 v3.
159 root 1.223 - configure did not detect nanosleep and clock_gettime properly when
160     they are available in the libc (as opposed to -lrt).
161 root 1.221
162 root 1.219 4.03 Tue Jan 11 14:37:25 CET 2011
163 root 1.217 - officially support polling files with all backends.
164 root 1.212 - support files, /dev/zero etc. the same way as select in the epoll
165     backend, by generating events on our own.
166 root 1.217 - ports backend: work around solaris bug 6874410 and many related ones
167     (EINTR, maybe more), with no performance loss (note that the solaris
168     bug report is actually wrong, reality is far more bizarre and broken
169     than that).
170 root 1.209 - define EV_READ/EV_WRITE as macros in event.h, as some programs use
171     #ifdef to test for them.
172 root 1.213 - new (experimental) function: ev_feed_signal.
173     - new (to become default) EVFLAG_NOSIGMASK flag.
174     - new EVBACKEND_MASK symbol.
175 root 1.220 - updated COMMON IDIOMS SECTION.
176 root 1.209
177 root 1.207 4.01 Fri Nov 5 21:51:29 CET 2010
178 root 1.205 - automake fucked it up, apparently, --add-missing -f is not quite enough
179 root 1.206 to make it update its files, so 4.00 didn't install ev++.h and
180     event.h on make install. grrr.
181     - ev_loop(count|depth) didn't return anything (Robin Haberkorn).
182 root 1.203 - change EV_UNDEF to 0xffffffff to silence some overzealous compilers.
183 root 1.204 - use "(libev) " prefix for all libev error messages now.
184 root 1.203
185 root 1.202 4.00 Mon Oct 25 12:32:12 CEST 2010
186 root 1.171 - "PORTING FROM LIBEV 3.X TO 4.X" (in ev.pod) is recommended reading.
187 root 1.161 - ev_embed_stop did not correctly stop the watcher (very good
188     testcase by Vladimir Timofeev).
189 sf-exg 1.191 - ev_run will now always update the current loop time - it erroneously
190 root 1.187 didn't when idle watchers were active, causing timers not to fire.
191 root 1.179 - fix a bug where a timeout of zero caused the timer not to fire
192     in the libevent emulation (testcase by Péter Szabó).
193 root 1.164 - applied win32 fixes by Michael Lenaghan (also James Mansion).
194 root 1.166 - replace EV_MINIMAL by EV_FEATURES.
195 root 1.178 - prefer EPOLL_CTL_ADD over EPOLL_CTL_MOD in some more cases, as it
196     seems the former is *much* faster than the latter.
197 root 1.197 - linux kernel version detection (for inotify bug workarounds)
198     did not work properly.
199 root 1.185 - reduce the number of spurious wake-ups with the ports backend.
200 root 1.158 - remove dependency on sys/queue.h on freebsd (patch by Vanilla Hsu).
201 root 1.186 - do async init within ev_async_start, not ev_async_set, which avoids
202     an API quirk where the set function must be called in the C++ API
203     even when there is nothing to set.
204 root 1.174 - add (undocumented) EV_ENABLE when adding events with kqueue,
205 root 1.175 this might help with OS X, which seems to need it despite documenting
206     not to need it (helpfully pointed out by Tilghman Lesher).
207 root 1.176 - do not use poll by default on freebsd, it's broken (what isn't
208     on freebsd...).
209 root 1.195 - allow to embed epoll on kernels >= 2.6.32.
210 root 1.159 - configure now prepends -O3, not appends it, so one can still
211     override it.
212 root 1.190 - ev.pod: greatly expanded the portability section, added a porting
213     section, a description of watcher states and made lots of minor fixes.
214 root 1.160 - disable poll backend on AIX, the poll header spams the namespace
215     and it's not worth working around dead platforms (reported
216     and analyzed by Aivars Kalvans).
217 root 1.162 - improve header file compatibility of the standalone eventfd code
218     in an obscure case.
219 root 1.163 - implement EV_AVOID_STDIO option.
220     - do not use sscanf to parse linux version number (smaller, faster,
221     no sscanf dependency).
222 root 1.164 - new EV_CHILD_ENABLE and EV_SIGNAL_ENABLE configurable settings.
223 sf-exg 1.172 - update libev.m4 HAVE_CLOCK_SYSCALL test for newer glibcs.
224 root 1.165 - add section on accept() problems to the manpage.
225 root 1.168 - rename EV_TIMEOUT to EV_TIMER.
226 root 1.190 - rename ev_loop_count/depth/verify/loop/unloop.
227 root 1.197 - remove ev_default_destroy and ev_default_fork.
228 root 1.168 - switch to two-digit minor version.
229 root 1.180 - work around an apparent gentoo compiler bug.
230 root 1.181 - define _DARWIN_UNLIMITED_SELECT. just so.
231 root 1.188 - use enum instead of #define for most constants.
232     - improve compatibility to older C++ compilers.
233 root 1.193 - (experimental) ev_run/ev_default_loop/ev_break/ev_loop_new have now
234     default arguments when compiled as C++.
235 root 1.196 - enable automake dependency tracking.
236 root 1.197 - ev_loop_new no longer leaks memory when loop creation failed.
237 root 1.198 - new ev_cleanup watcher type.
238 root 1.157
239 root 1.156 3.9 Thu Dec 31 07:59:59 CET 2009
240 root 1.155 - signalfd is no longer used by default and has to be requested
241     explicitly - this means that easy to catch bugs become hard to
242     catch race conditions, but the users have spoken.
243     - point out the unspecified signal mask in the documentation, and
244     that this is a race condition regardless of EV_SIGNALFD.
245 root 1.142 - backport inotify code to C89.
246 root 1.148 - inotify file descriptors could leak into child processes.
247 sf-exg 1.241 - ev_stat watchers could keep an erroneous extra ref on the loop,
248 root 1.151 preventing exit when unregistering all watchers (testcases
249 root 1.150 provided by ry@tinyclouds.org).
250 root 1.143 - implement EV_WIN32_HANDLE_TO_FD and EV_WIN32_CLOSE_FD configuration
251 root 1.145 symbols to make it easier for apps to do their own fd management.
252 root 1.144 - support EV_IDLE_ENABLE being disabled in ev++.h
253     (patch by Didier Spezia).
254 root 1.147 - take advantage of inotify_init1, if available, to set cloexec/nonblock
255     on fd creation, to avoid races.
256 root 1.150 - the signal handling pipe wasn't always initialised under windows
257     (analysed by lekma).
258 root 1.146 - changed minimum glibc requirement from glibc 2.9 to 2.7, for
259     signalfd.
260 root 1.152 - add missing string.h include (Denis F. Latypoff).
261 root 1.153 - only replace ev_stat.prev when we detect an actual difference,
262     so prev is (almost) always different to attr. this might
263 sf-exg 1.191 have caused the problems with 04_stat.t.
264 root 1.154 - add ev::timer->remaining () method to C++ API.
265 root 1.142
266 root 1.141 3.8 Sun Aug 9 14:30:45 CEST 2009
267 root 1.133 - incompatible change: do not necessarily reset signal handler
268     to SIG_DFL when a sighandler is stopped.
269 root 1.135 - ev_default_destroy did not properly free or zero some members,
270 sf-exg 1.191 potentially causing crashes and memory corruption on repeated
271 root 1.134 ev_default_destroy/ev_default_loop calls.
272 root 1.133 - take advantage of signalfd on GNU/Linux systems.
273     - document that the signal mask might be in an unspecified
274     state when using libev's signal handling.
275 root 1.136 - take advantage of some GNU/Linux calls to set cloexec/nonblock
276     on fd creation, to avoid race conditions.
277 root 1.132
278 root 1.131 3.7 Fri Jul 17 16:36:32 CEST 2009
279 root 1.128 - ev_unloop and ev_loop wrongly used a global variable to exit loops,
280     instead of using a per-loop variable (bug caught by accident...).
281     - the ev_set_io_collect_interval interpretation has changed.
282     - add new functionality: ev_set_userdata, ev_userdata,
283 root 1.126 ev_set_invoke_pending_cb, ev_set_loop_release_cb,
284 root 1.132 ev_invoke_pending, ev_pending_count, together with a long example
285     about thread locking.
286 root 1.128 - add ev_timer_remaining (as requested by Denis F. Latypoff).
287     - add ev_loop_depth.
288 root 1.124 - calling ev_unloop in fork/prepare watchers will no longer poll
289     for new events.
290 root 1.115 - Denis F. Latypoff corrected many typos in example code snippets.
291     - honor autoconf detection of EV_USE_CLOCK_SYSCALL, also double-
292     check that the syscall number is available before trying to
293     use it (reported by ry@tinyclouds).
294 root 1.117 - use GetSystemTimeAsFileTime instead of _timeb on windows, for
295 root 1.116 slightly higher accuracy.
296 root 1.122 - properly declare ev_loop_verify and ev_now_update even when
297     !EV_MULTIPLICITY.
298 root 1.121 - do not compile in any priority code when EV_MAXPRI == EV_MINPRI.
299 root 1.123 - support EV_MINIMAL==2 for a reduced API.
300 root 1.125 - actually 0-initialise struct sigaction when installing signals.
301 root 1.127 - add section on hibernate and stopped processes to ev_timer docs.
302 root 1.115
303 root 1.113 3.6 Tue Apr 28 02:49:30 CEST 2009
304 root 1.107 - multiple timers becoming ready within an event loop iteration
305     will be invoked in the "correct" order now.
306 root 1.105 - do not leave the event loop early just because we have no active
307     watchers, fixing a problem when embedding a kqueue loop
308     that has active kernel events but no registered watchers
309     (reported by blacksand blacksand).
310 root 1.102 - correctly zero the idx values for arrays, so destroying and
311     reinitialising the default loop actually works (patch by
312     Malek Hadj-Ali).
313 root 1.108 - implement ev_suspend and ev_resume.
314 root 1.106 - new EV_CUSTOM revents flag for use by applications.
315 sf-exg 1.241 - add documentation section about priorities.
316 sf-exg 1.286 - add a glossary to the documentation.
317 root 1.111 - extend the ev_fork description slightly.
318 root 1.112 - optimize a jump out of call_pending.
319 root 1.102
320 root 1.101 3.53 Sun Feb 15 02:38:20 CET 2009
321     - fix a bug in event pipe creation on win32 that would cause a
322     failed assertion on event loop creation (patch by Malek Hadj-Ali).
323 root 1.100 - probe for CLOCK_REALTIME support at runtime as well and fall
324     back to gettimeofday if there is an error, to support older
325     operating systems with newer header files/libraries.
326     - prefer gettimeofday over clock_gettime with USE_CLOCK_SYSCALL
327     (default most everywhere), otherwise not.
328    
329 root 1.99 3.52 Wed Jan 7 21:43:02 CET 2009
330 root 1.97 - fix compilation of select backend in fd_set mode when NFDBITS is
331     missing (to get it to compile on QNX, reported by Rodrigo Campos).
332     - better select-nfds handling when select backend is in fd_set mode.
333     - diagnose fd_set overruns when select backend is in fd_set mode.
334     - due to a thinko, instead of disabling everything but
335     select on the borked OS X platform, everything but select was
336     allowed (reported by Emanuele Giaquinta).
337 root 1.95 - actually verify that local and remote port are matching in
338     libev's socketpair emulation, which makes denial-of-service
339     attacks harder (but not impossible - it's windows). Make sure
340 root 1.96 it even works under vista, which thinks that getpeer/sockname
341     should return fantasy port numbers.
342 root 1.100 - include "libev" in all assertion messages for potentially
343 root 1.97 clearer diagnostics.
344 root 1.98 - event_get_version (libevent compatibility) returned
345     a useless string instead of the expected version string
346     (patch by W.C.A. Wijngaards).
347 root 1.95
348 root 1.94 3.51 Wed Dec 24 23:00:11 CET 2008
349 root 1.91 - fix a bug where an inotify watcher was added twice, causing
350 root 1.92 freezes on hash collisions (reported and analysed by Graham Leggett).
351 root 1.87 - new config symbol, EV_USE_CLOCK_SYSCALL, to make libev use
352     a direct syscall - slower, but no dependency on librt et al.
353 root 1.88 - assume negative return values != -1 signals success of port_getn
354     (http://cvs.epicsol.org/cgi/viewcvs.cgi/epic5/source/newio.c?rev=1.52)
355     (no known failure reports, but it doesn't hurt).
356 root 1.93 - fork detection in ev_embed now stops and restarts the watcher
357     automatically.
358 root 1.89 - EXPERIMENTAL: default the method to operator () in ev++.h,
359     to make it nicer to use functors (requested by Benedek László).
360     - fixed const object callbacks in ev++.h.
361 root 1.90 - replaced loop_ref argument of watcher.set (loop) by a direct
362     ev_loop * in ev++.h, to avoid clashes with functor patch.
363 root 1.91 - do not try to watch the empty string via inotify.
364 root 1.92 - inotify watchers could be leaked under certain circumstances.
365     - OS X 10.5 is actually even more broken than earlier versions,
366     so fall back to select on that piece of garbage.
367 root 1.93 - fixed some weirdness in the ev_embed documentation.
368 root 1.87
369 root 1.86 3.49 Wed Nov 19 11:26:53 CET 2008
370 root 1.83 - ev_stat watchers will now use inotify as a mere hint on
371     kernels <2.6.25, or if the filesystem is not in the
372     "known to be good" list.
373 root 1.84 - better mingw32 compatibility (it's not as borked as native win32)
374     (analysed by Roger Pack).
375 root 1.85 - include stdio.h in the example program, as too many people are
376     confused by the weird C language otherwise. I guess the next thing
377     I get told is that the "..." ellipses in the examples don't compile
378     with their C compiler.
379 root 1.83
380 root 1.80 3.48 Thu Oct 30 09:02:37 CET 2008
381 root 1.71 - further optimise away the EPOLL_CTL_ADD/MOD combo in the epoll
382     backend by assuming the kernel event mask hasn't changed if
383     ADD fails with EEXIST.
384 root 1.75 - work around spurious event notification bugs in epoll by using
385 root 1.77 a 32-bit generation counter. recreate kernel state if we receive
386 root 1.78 spurious notifications or unwanted events. this is very costly,
387     but I didn't come up with this horrible design.
388 root 1.71 - use memset to initialise most arrays now and do away with the
389     init functions.
390 root 1.72 - expand time-out strategies into a "Be smart about timeouts" section.
391     - drop the "struct" from all ev_watcher declarations in the
392 root 1.73 documentation and did other clarifications (yeah, it was a mistake
393     to have a struct AND a function called ev_loop).
394 root 1.74 - fix a bug where ev_default would not initialise the default
395     loop again after it was destroyed with ev_default_destroy.
396 root 1.79 - rename syserr to ev_syserr to avoid name clashes when embedding,
397     do similar changes for event.c.
398 root 1.71
399 root 1.69 3.45 Tue Oct 21 21:59:26 CEST 2008
400 root 1.67 - disable inotify usage on linux <2.6.25, as it is broken
401     (reported by Yoann Vandoorselaere).
402 sf-exg 1.191 - ev_stat erroneously would try to add inotify watchers
403 root 1.68 even when inotify wasn't available (this should only
404 root 1.67 have a performance impact).
405 root 1.65 - ev_once now passes both timeout and io to the callback if both
406     occur concurrently, instead of giving timeouts precedence.
407 root 1.66 - disable EV_USE_INOTIFY when sys/inotify.h is too old.
408 root 1.65
409 root 1.62 3.44 Mon Sep 29 05:18:39 CEST 2008
410     - embed watchers now automatically invoke ev_loop_fork on the
411     embedded loop when the parent loop forks.
412 root 1.58 - new function: ev_now_update (loop).
413 root 1.57 - verify_watcher was not marked static.
414 root 1.59 - improve the "associating..." manpage section.
415 root 1.60 - documentation tweaks here and there.
416 root 1.57
417 root 1.56 3.43 Sun Jul 6 05:34:41 CEST 2008
418 root 1.54 - include more include files on windows to get struct _stati64
419 root 1.56 (reported by Chris Hulbert, but doesn't quite fix his issue).
420 root 1.53 - add missing #include <io.h> in ev.c on windows (reported by
421     Matt Tolton).
422    
423 root 1.52 3.42 Tue Jun 17 12:12:07 CEST 2008
424 root 1.50 - work around yet another windows bug: FD_SET actually adds fd's
425     multiple times to the fd_*SET*, despite official MSN docs claiming
426 root 1.51 otherwise. Reported and well-analysed by Matt Tolton.
427     - define NFDBITS to 0 when EV_SELECT_IS_WINSOCKET to make it compile
428 root 1.48 (reported any analysed by Chris Hulbert).
429 root 1.49 - fix a bug in ev_ebadf (this function is only used to catch
430     programming errors in the libev user). reported by Matt Tolton.
431     - fix a bug in fd_intern on win32 (could lead to compile errors
432     under some circumstances, but would work correctly if it compiles).
433     reported by Matt Tolton.
434 root 1.50 - (try to) work around missing lstat on windows.
435 root 1.45 - pass in the write fd set as except fd set under windows. windows
436 root 1.46 is so uncontrollably lame that it requires this. this means that
437     switching off oobinline is not supported (but tcp/ip doesn't
438     have oob, so that would be stupid anyways.
439 root 1.47 - use posix module symbol to auto-detect monotonic clock presence
440     and some other default values.
441 root 1.45
442 root 1.44 3.41 Fri May 23 18:42:54 CEST 2008
443 root 1.46 - work around an obscure bug in winsocket select: if you
444 root 1.40 provide only empty fd sets then select returns WSAEINVAL. how sucky.
445 root 1.41 - improve timer scheduling stability and reduce use of time_epsilon.
446 root 1.36 - use 1-based 2-heap for EV_MINIMAL, simplifies code, reduces
447     codesize and makes for better cache-efficiency.
448     - use 3-based 4-heap for !EV_MINIMAL. this makes better use
449     of cpu cache lines and gives better growth behaviour than
450     2-based heaps.
451 root 1.38 - cache timestamp within heap for !EV_MINIMAL, to avoid random
452     memory accesses.
453     - document/add EV_USE_4HEAP and EV_HEAP_CACHE_AT.
454 root 1.33 - fix a potential aliasing issue in ev_timer_again.
455 root 1.35 - add/document ev_periodic_at, retract direct access to ->at.
456     - improve ev_stat docs.
457     - add portability requirements section.
458 root 1.39 - fix manpage headers etc.
459 root 1.40 - normalise WSA error codes to lower range on windows.
460 root 1.43 - add consistency check code that can be called automatically
461     or on demand to check for internal structures (ev_loop_verify).
462 root 1.31
463 root 1.30 3.31 Wed Apr 16 20:45:04 CEST 2008
464     - added last minute fix for ev_poll.c by Brandon Black.
465 root 1.29
466 root 1.28 3.3 Wed Apr 16 19:04:10 CEST 2008
467 root 1.23 - event_base_loopexit should return 0 on success
468     (W.C.A. Wijngaards).
469 root 1.20 - added linux eventfd support.
470     - try to autodetect epoll and inotify support
471     by libc header version if not using autoconf.
472 root 1.21 - new symbols: EV_DEFAULT_UC and EV_DEFAULT_UC_.
473     - declare functions defined in ev.h as inline if
474     C99 or gcc are available.
475     - enable inlining with gcc versions 2 and 3.
476 root 1.25 - work around broken poll implementations potentially
477     not clearing revents field in ev_poll (Brandon Black)
478     (no such systems are known at this time).
479 root 1.23 - work around a bug in realloc on openbsd and darwin,
480 sf-exg 1.191 also makes the erroneous valgrind complaints
481 root 1.23 go away (noted by various people).
482 root 1.26 - fix ev_async_pending, add c++ wrapper for ev_async
483 sf-exg 1.191 (based on patch sent by Johannes Deisenhofer).
484 root 1.26 - add sensible set method to ev::embed.
485 root 1.27 - made integer constants type int in ev.h.
486 root 1.20
487 root 1.19 3.2 Wed Apr 2 17:11:19 CEST 2008
488 root 1.15 - fix a 64 bit overflow issue in the select backend,
489     by using fd_mask instead of int for the mask.
490 root 1.16 - rename internal sighandler to avoid clash with very old perls.
491 root 1.18 - entering ev_loop will not clear the ONESHOT or NONBLOCKING
492     flags of any outer loops anymore.
493 root 1.17 - add ev_async_pending.
494 root 1.15
495 root 1.14 3.1 Thu Mar 13 13:45:22 CET 2008
496 root 1.12 - implement ev_async watchers.
497 root 1.10 - only initialise signal pipe on demand.
498     - make use of sig_atomic_t configurable.
499 root 1.14 - improved documentation.
500 root 1.10
501 root 1.9 3.0 Mon Jan 28 13:14:47 CET 2008
502 root 1.6 - API/ABI bump to version 3.0.
503 root 1.4 - ev++.h includes "ev.h" by default now, not <ev.h>.
504     - slightly improved documentation.
505 root 1.5 - speed up signal detection after a fork.
506 root 1.6 - only optionally return trace status changed in ev_child
507     watchers.
508 root 1.8 - experimental (and undocumented) loop wrappers for ev++.h.
509 root 1.4
510 root 1.2 2.01 Tue Dec 25 08:04:41 CET 2007
511 root 1.3 - separate Changes file.
512 root 1.2 - fix ev_path_set => ev_stat_set typo.
513     - remove event_compat.h from the libev tarball.
514     - change how include files are found.
515     - doc updates.
516     - update licenses, explicitly allow for GPL relicensing.
517    
518     2.0 Sat Dec 22 17:47:03 CET 2007
519     - new ev_sleep, ev_set_(io|timeout)_collect_interval.
520     - removed epoll from embeddable fd set.
521     - fix embed watchers.
522     - renamed ev_embed.loop to other.
523     - added exported Symbol tables.
524     - undefine member wrapper macros at the end of ev.c.
525     - respect EV_H in ev++.h.
526    
527     1.86 Tue Dec 18 02:36:57 CET 2007
528     - fix memleak on loop destroy (not relevant for perl).
529    
530     1.85 Fri Dec 14 20:32:40 CET 2007
531     - fix some aliasing issues w.r.t. timers and periodics
532     (not relevant for perl).
533    
534     (for historic versions refer to EV/Changes, found in the Perl interface)
535    
536 root 1.1 0.1 Wed Oct 31 21:31:48 CET 2007
537     - original version; hacked together in <24h.
538