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