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Comparing libev/Changes (file contents):
Revision 1.86 by root, Wed Nov 19 10:33:32 2008 UTC vs.
Revision 1.218 by root, Tue Jan 11 02:15:58 2011 UTC

1Revision history for libev, a high-performance and full-featured event loop. 1Revision history for libev, a high-performance and full-featured event loop.
2
34.03
4 - officially support polling files with all backends.
5 - support files, /dev/zero etc. the same way as select in the epoll
6 backend, by generating events on our own.
7 - ports backend: work around solaris bug 6874410 and many related ones
8 (EINTR, maybe more), with no performance loss (note that the solaris
9 bug report is actually wrong, reality is far more bizarre and broken
10 than that).
11 - define EV_READ/EV_WRITE as macros in event.h, as some programs use
12 #ifdef to test for them.
13 - new (experimental) function: ev_feed_signal.
14 - new (to become default) EVFLAG_NOSIGMASK flag.
15 - new EVBACKEND_MASK symbol.
16
174.01 Fri Nov 5 21:51:29 CET 2010
18 - automake fucked it up, apparently, --add-missing -f is not quite enough
19 to make it update its files, so 4.00 didn't install ev++.h and
20 event.h on make install. grrr.
21 - ev_loop(count|depth) didn't return anything (Robin Haberkorn).
22 - change EV_UNDEF to 0xffffffff to silence some overzealous compilers.
23 - use "(libev) " prefix for all libev error messages now.
24
254.00 Mon Oct 25 12:32:12 CEST 2010
26 - "PORTING FROM LIBEV 3.X TO 4.X" (in ev.pod) is recommended reading.
27 - ev_embed_stop did not correctly stop the watcher (very good
28 testcase by Vladimir Timofeev).
29 - ev_run will now always update the current loop time - it erroneously
30 didn't when idle watchers were active, causing timers not to fire.
31 - fix a bug where a timeout of zero caused the timer not to fire
32 in the libevent emulation (testcase by Péter Szabó).
33 - applied win32 fixes by Michael Lenaghan (also James Mansion).
34 - replace EV_MINIMAL by EV_FEATURES.
35 - prefer EPOLL_CTL_ADD over EPOLL_CTL_MOD in some more cases, as it
36 seems the former is *much* faster than the latter.
37 - linux kernel version detection (for inotify bug workarounds)
38 did not work properly.
39 - reduce the number of spurious wake-ups with the ports backend.
40 - remove dependency on sys/queue.h on freebsd (patch by Vanilla Hsu).
41 - do async init within ev_async_start, not ev_async_set, which avoids
42 an API quirk where the set function must be called in the C++ API
43 even when there is nothing to set.
44 - add (undocumented) EV_ENABLE when adding events with kqueue,
45 this might help with OS X, which seems to need it despite documenting
46 not to need it (helpfully pointed out by Tilghman Lesher).
47 - do not use poll by default on freebsd, it's broken (what isn't
48 on freebsd...).
49 - allow to embed epoll on kernels >= 2.6.32.
50 - configure now prepends -O3, not appends it, so one can still
51 override it.
52 - ev.pod: greatly expanded the portability section, added a porting
53 section, a description of watcher states and made lots of minor fixes.
54 - disable poll backend on AIX, the poll header spams the namespace
55 and it's not worth working around dead platforms (reported
56 and analyzed by Aivars Kalvans).
57 - improve header file compatibility of the standalone eventfd code
58 in an obscure case.
59 - implement EV_AVOID_STDIO option.
60 - do not use sscanf to parse linux version number (smaller, faster,
61 no sscanf dependency).
62 - new EV_CHILD_ENABLE and EV_SIGNAL_ENABLE configurable settings.
63 - update libev.m4 HAVE_CLOCK_SYSCALL test for newer glibcs.
64 - add section on accept() problems to the manpage.
65 - rename EV_TIMEOUT to EV_TIMER.
66 - rename ev_loop_count/depth/verify/loop/unloop.
67 - remove ev_default_destroy and ev_default_fork.
68 - switch to two-digit minor version.
69 - work around an apparent gentoo compiler bug.
70 - define _DARWIN_UNLIMITED_SELECT. just so.
71 - use enum instead of #define for most constants.
72 - improve compatibility to older C++ compilers.
73 - (experimental) ev_run/ev_default_loop/ev_break/ev_loop_new have now
74 default arguments when compiled as C++.
75 - enable automake dependency tracking.
76 - ev_loop_new no longer leaks memory when loop creation failed.
77 - new ev_cleanup watcher type.
78
793.9 Thu Dec 31 07:59:59 CET 2009
80 - signalfd is no longer used by default and has to be requested
81 explicitly - this means that easy to catch bugs become hard to
82 catch race conditions, but the users have spoken.
83 - point out the unspecified signal mask in the documentation, and
84 that this is a race condition regardless of EV_SIGNALFD.
85 - backport inotify code to C89.
86 - inotify file descriptors could leak into child processes.
87 - ev_stat watchers could keep an errornous extra ref on the loop,
88 preventing exit when unregistering all watchers (testcases
89 provided by ry@tinyclouds.org).
90 - implement EV_WIN32_HANDLE_TO_FD and EV_WIN32_CLOSE_FD configuration
91 symbols to make it easier for apps to do their own fd management.
92 - support EV_IDLE_ENABLE being disabled in ev++.h
93 (patch by Didier Spezia).
94 - take advantage of inotify_init1, if available, to set cloexec/nonblock
95 on fd creation, to avoid races.
96 - the signal handling pipe wasn't always initialised under windows
97 (analysed by lekma).
98 - changed minimum glibc requirement from glibc 2.9 to 2.7, for
99 signalfd.
100 - add missing string.h include (Denis F. Latypoff).
101 - only replace ev_stat.prev when we detect an actual difference,
102 so prev is (almost) always different to attr. this might
103 have caused the problems with 04_stat.t.
104 - add ev::timer->remaining () method to C++ API.
105
1063.8 Sun Aug 9 14:30:45 CEST 2009
107 - incompatible change: do not necessarily reset signal handler
108 to SIG_DFL when a sighandler is stopped.
109 - ev_default_destroy did not properly free or zero some members,
110 potentially causing crashes and memory corruption on repeated
111 ev_default_destroy/ev_default_loop calls.
112 - take advantage of signalfd on GNU/Linux systems.
113 - document that the signal mask might be in an unspecified
114 state when using libev's signal handling.
115 - take advantage of some GNU/Linux calls to set cloexec/nonblock
116 on fd creation, to avoid race conditions.
117
1183.7 Fri Jul 17 16:36:32 CEST 2009
119 - ev_unloop and ev_loop wrongly used a global variable to exit loops,
120 instead of using a per-loop variable (bug caught by accident...).
121 - the ev_set_io_collect_interval interpretation has changed.
122 - add new functionality: ev_set_userdata, ev_userdata,
123 ev_set_invoke_pending_cb, ev_set_loop_release_cb,
124 ev_invoke_pending, ev_pending_count, together with a long example
125 about thread locking.
126 - add ev_timer_remaining (as requested by Denis F. Latypoff).
127 - add ev_loop_depth.
128 - calling ev_unloop in fork/prepare watchers will no longer poll
129 for new events.
130 - Denis F. Latypoff corrected many typos in example code snippets.
131 - honor autoconf detection of EV_USE_CLOCK_SYSCALL, also double-
132 check that the syscall number is available before trying to
133 use it (reported by ry@tinyclouds).
134 - use GetSystemTimeAsFileTime instead of _timeb on windows, for
135 slightly higher accuracy.
136 - properly declare ev_loop_verify and ev_now_update even when
137 !EV_MULTIPLICITY.
138 - do not compile in any priority code when EV_MAXPRI == EV_MINPRI.
139 - support EV_MINIMAL==2 for a reduced API.
140 - actually 0-initialise struct sigaction when installing signals.
141 - add section on hibernate and stopped processes to ev_timer docs.
142
1433.6 Tue Apr 28 02:49:30 CEST 2009
144 - multiple timers becoming ready within an event loop iteration
145 will be invoked in the "correct" order now.
146 - do not leave the event loop early just because we have no active
147 watchers, fixing a problem when embedding a kqueue loop
148 that has active kernel events but no registered watchers
149 (reported by blacksand blacksand).
150 - correctly zero the idx values for arrays, so destroying and
151 reinitialising the default loop actually works (patch by
152 Malek Hadj-Ali).
153 - implement ev_suspend and ev_resume.
154 - new EV_CUSTOM revents flag for use by applications.
155 - add documentation section about priorites.
156 - add a glossary to the dcoumentation.
157 - extend the ev_fork description slightly.
158 - optimize a jump out of call_pending.
159
1603.53 Sun Feb 15 02:38:20 CET 2009
161 - fix a bug in event pipe creation on win32 that would cause a
162 failed assertion on event loop creation (patch by Malek Hadj-Ali).
163 - probe for CLOCK_REALTIME support at runtime as well and fall
164 back to gettimeofday if there is an error, to support older
165 operating systems with newer header files/libraries.
166 - prefer gettimeofday over clock_gettime with USE_CLOCK_SYSCALL
167 (default most everywhere), otherwise not.
168
1693.52 Wed Jan 7 21:43:02 CET 2009
170 - fix compilation of select backend in fd_set mode when NFDBITS is
171 missing (to get it to compile on QNX, reported by Rodrigo Campos).
172 - better select-nfds handling when select backend is in fd_set mode.
173 - diagnose fd_set overruns when select backend is in fd_set mode.
174 - due to a thinko, instead of disabling everything but
175 select on the borked OS X platform, everything but select was
176 allowed (reported by Emanuele Giaquinta).
177 - actually verify that local and remote port are matching in
178 libev's socketpair emulation, which makes denial-of-service
179 attacks harder (but not impossible - it's windows). Make sure
180 it even works under vista, which thinks that getpeer/sockname
181 should return fantasy port numbers.
182 - include "libev" in all assertion messages for potentially
183 clearer diagnostics.
184 - event_get_version (libevent compatibility) returned
185 a useless string instead of the expected version string
186 (patch by W.C.A. Wijngaards).
187
1883.51 Wed Dec 24 23:00:11 CET 2008
189 - fix a bug where an inotify watcher was added twice, causing
190 freezes on hash collisions (reported and analysed by Graham Leggett).
191 - new config symbol, EV_USE_CLOCK_SYSCALL, to make libev use
192 a direct syscall - slower, but no dependency on librt et al.
193 - assume negative return values != -1 signals success of port_getn
194 (http://cvs.epicsol.org/cgi/viewcvs.cgi/epic5/source/newio.c?rev=1.52)
195 (no known failure reports, but it doesn't hurt).
196 - fork detection in ev_embed now stops and restarts the watcher
197 automatically.
198 - EXPERIMENTAL: default the method to operator () in ev++.h,
199 to make it nicer to use functors (requested by Benedek László).
200 - fixed const object callbacks in ev++.h.
201 - replaced loop_ref argument of watcher.set (loop) by a direct
202 ev_loop * in ev++.h, to avoid clashes with functor patch.
203 - do not try to watch the empty string via inotify.
204 - inotify watchers could be leaked under certain circumstances.
205 - OS X 10.5 is actually even more broken than earlier versions,
206 so fall back to select on that piece of garbage.
207 - fixed some weirdness in the ev_embed documentation.
2 208
33.49 Wed Nov 19 11:26:53 CET 2008 2093.49 Wed Nov 19 11:26:53 CET 2008
4 - ev_stat watchers will now use inotify as a mere hint on 210 - ev_stat watchers will now use inotify as a mere hint on
5 kernels <2.6.25, or if the filesystem is not in the 211 kernels <2.6.25, or if the filesystem is not in the
6 "known to be good" list. 212 "known to be good" list.
… …
31 do similar changes for event.c. 237 do similar changes for event.c.
32 238
333.45 Tue Oct 21 21:59:26 CEST 2008 2393.45 Tue Oct 21 21:59:26 CEST 2008
34 - disable inotify usage on linux <2.6.25, as it is broken 240 - disable inotify usage on linux <2.6.25, as it is broken
35 (reported by Yoann Vandoorselaere). 241 (reported by Yoann Vandoorselaere).
36 - ev_stat errornously would try to add inotify watchers 242 - ev_stat erroneously would try to add inotify watchers
37 even when inotify wasn't available (this should only 243 even when inotify wasn't available (this should only
38 have a performance impact). 244 have a performance impact).
39 - ev_once now passes both timeout and io to the callback if both 245 - ev_once now passes both timeout and io to the callback if both
40 occur concurrently, instead of giving timeouts precedence. 246 occur concurrently, instead of giving timeouts precedence.
41 - disable EV_USE_INOTIFY when sys/inotify.h is too old. 247 - disable EV_USE_INOTIFY when sys/inotify.h is too old.
… …
109 - enable inlining with gcc versions 2 and 3. 315 - enable inlining with gcc versions 2 and 3.
110 - work around broken poll implementations potentially 316 - work around broken poll implementations potentially
111 not clearing revents field in ev_poll (Brandon Black) 317 not clearing revents field in ev_poll (Brandon Black)
112 (no such systems are known at this time). 318 (no such systems are known at this time).
113 - work around a bug in realloc on openbsd and darwin, 319 - work around a bug in realloc on openbsd and darwin,
114 also makes the errornous valgrind complaints 320 also makes the erroneous valgrind complaints
115 go away (noted by various people). 321 go away (noted by various people).
116 - fix ev_async_pending, add c++ wrapper for ev_async 322 - fix ev_async_pending, add c++ wrapper for ev_async
117 (based on patch sent by Johannes Deisenhofer. 323 (based on patch sent by Johannes Deisenhofer).
118 - add sensible set method to ev::embed. 324 - add sensible set method to ev::embed.
119 - made integer constants type int in ev.h. 325 - made integer constants type int in ev.h.
120 326
1213.2 Wed Apr 2 17:11:19 CEST 2008 3273.2 Wed Apr 2 17:11:19 CEST 2008
122 - fix a 64 bit overflow issue in the select backend, 328 - fix a 64 bit overflow issue in the select backend,

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