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Comparing libev/Changes (file contents):
Revision 1.155 by root, Thu Dec 31 06:50:16 2009 UTC vs.
Revision 1.246 by root, Tue Dec 20 04:09:13 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 2
3TODO: ev_loop_wakeup
4
5TODO: EV_NO_THREADS/NO_SMP and/or EV_USE_PTHREADS or so. also document.
6TODO: EV_STANDALONE == NO_HASSEL (do not use clock_gettime in ev_standalone)
7TODO: memory fences for clang
8ASKEXG!TODO: #define EV_API_DECL static? ev_default_loop_ptr? ev_rt_now?
9ASKEXG!TODO: fix repeat=0 in http://pod.tst.eu/http://cvs.schmorp.de/libev/ev.pod#Be_smart_about_timeouts
104.10
11 - fix a race where the workaround against the epoll fork bugs
12 caused signals to not be handled anymore.
13 - correct backend_fudge for most backends, and implement a windows
14 specific workaround to avoid looping because we call both
15 select and Sleep, both with different time resolutions.
16 - document range and guarantees of ev_sleep.
17 - document reasonable ranges for periodics interval and offset.
18 - rename backend_fudge to backend_mintime to avoid future confusion :)
19 - change the default periodic reschedule function to hopefully be more
20 exact and correct even in corner cases or in the far future.
21 - do not rely on -lm anymore: use it when available but use our
22 own floor () if it is missing. This should make it easier to embed,
23 as no external libraries are required.
24 - strategically import macros from libecb and mark rarely-used functions
25 as cache-cold (saving almost 2k code size on typical amd64 setups).
26 - add Symbols.ev and Symbols.event files, that were missing.
27 - fix backend_mintime value for epoll (was 1/1024, is 1/1000 now).
28 - fix #3 "be smart about timeouts" to not "deadlock" when
29 timeout == now, also improve the section overall.
30 - avoid "AVOIDING FINISHING BEFORE RETURNING" idiom.
31 - support new EV_API_STATIC mode to make all libev symbols
32 static.
33
344.04 Wed Feb 16 09:01:51 CET 2011
35 - fix two problems in the native win32 backend, where reuse of fd's
36 with different underlying handles caused handles not to be removed
37 or added to the select set (analyzed and tested by Bert Belder).
38 - do no rely on ceil() in ev_e?poll.c.
39 - backport libev to HP-UX versions before 11 v3.
40 - configure did not detect nanosleep and clock_gettime properly when
41 they are available in the libc (as opposed to -lrt).
42
434.03 Tue Jan 11 14:37:25 CET 2011
44 - officially support polling files with all backends.
45 - support files, /dev/zero etc. the same way as select in the epoll
46 backend, by generating events on our own.
47 - ports backend: work around solaris bug 6874410 and many related ones
48 (EINTR, maybe more), with no performance loss (note that the solaris
49 bug report is actually wrong, reality is far more bizarre and broken
50 than that).
51 - define EV_READ/EV_WRITE as macros in event.h, as some programs use
52 #ifdef to test for them.
53 - new (experimental) function: ev_feed_signal.
54 - new (to become default) EVFLAG_NOSIGMASK flag.
55 - new EVBACKEND_MASK symbol.
56 - updated COMMON IDIOMS SECTION.
57
584.01 Fri Nov 5 21:51:29 CET 2010
59 - automake fucked it up, apparently, --add-missing -f is not quite enough
60 to make it update its files, so 4.00 didn't install ev++.h and
61 event.h on make install. grrr.
62 - ev_loop(count|depth) didn't return anything (Robin Haberkorn).
63 - change EV_UNDEF to 0xffffffff to silence some overzealous compilers.
64 - use "(libev) " prefix for all libev error messages now.
65
664.00 Mon Oct 25 12:32:12 CEST 2010
67 - "PORTING FROM LIBEV 3.X TO 4.X" (in ev.pod) is recommended reading.
68 - ev_embed_stop did not correctly stop the watcher (very good
69 testcase by Vladimir Timofeev).
70 - ev_run will now always update the current loop time - it erroneously
71 didn't when idle watchers were active, causing timers not to fire.
72 - fix a bug where a timeout of zero caused the timer not to fire
73 in the libevent emulation (testcase by Péter Szabó).
74 - applied win32 fixes by Michael Lenaghan (also James Mansion).
75 - replace EV_MINIMAL by EV_FEATURES.
76 - prefer EPOLL_CTL_ADD over EPOLL_CTL_MOD in some more cases, as it
77 seems the former is *much* faster than the latter.
78 - linux kernel version detection (for inotify bug workarounds)
79 did not work properly.
80 - reduce the number of spurious wake-ups with the ports backend.
81 - remove dependency on sys/queue.h on freebsd (patch by Vanilla Hsu).
82 - do async init within ev_async_start, not ev_async_set, which avoids
83 an API quirk where the set function must be called in the C++ API
84 even when there is nothing to set.
85 - add (undocumented) EV_ENABLE when adding events with kqueue,
86 this might help with OS X, which seems to need it despite documenting
87 not to need it (helpfully pointed out by Tilghman Lesher).
88 - do not use poll by default on freebsd, it's broken (what isn't
89 on freebsd...).
90 - allow to embed epoll on kernels >= 2.6.32.
91 - configure now prepends -O3, not appends it, so one can still
92 override it.
93 - ev.pod: greatly expanded the portability section, added a porting
94 section, a description of watcher states and made lots of minor fixes.
95 - disable poll backend on AIX, the poll header spams the namespace
96 and it's not worth working around dead platforms (reported
97 and analyzed by Aivars Kalvans).
98 - improve header file compatibility of the standalone eventfd code
99 in an obscure case.
100 - implement EV_AVOID_STDIO option.
101 - do not use sscanf to parse linux version number (smaller, faster,
102 no sscanf dependency).
103 - new EV_CHILD_ENABLE and EV_SIGNAL_ENABLE configurable settings.
104 - update libev.m4 HAVE_CLOCK_SYSCALL test for newer glibcs.
105 - add section on accept() problems to the manpage.
106 - rename EV_TIMEOUT to EV_TIMER.
107 - rename ev_loop_count/depth/verify/loop/unloop.
108 - remove ev_default_destroy and ev_default_fork.
109 - switch to two-digit minor version.
110 - work around an apparent gentoo compiler bug.
111 - define _DARWIN_UNLIMITED_SELECT. just so.
112 - use enum instead of #define for most constants.
113 - improve compatibility to older C++ compilers.
114 - (experimental) ev_run/ev_default_loop/ev_break/ev_loop_new have now
115 default arguments when compiled as C++.
116 - enable automake dependency tracking.
117 - ev_loop_new no longer leaks memory when loop creation failed.
118 - new ev_cleanup watcher type.
119
1203.9 Thu Dec 31 07:59:59 CET 2009
3 - signalfd is no longer used by default and has to be requested 121 - signalfd is no longer used by default and has to be requested
4 explicitly - this means that easy to catch bugs become hard to 122 explicitly - this means that easy to catch bugs become hard to
5 catch race conditions, but the users have spoken. 123 catch race conditions, but the users have spoken.
6 - point out the unspecified signal mask in the documentation, and 124 - point out the unspecified signal mask in the documentation, and
7 that this is a race condition regardless of EV_SIGNALFD. 125 that this is a race condition regardless of EV_SIGNALFD.
8 - backport inotify code to C89. 126 - backport inotify code to C89.
9 - inotify file descriptors could leak into child processes. 127 - inotify file descriptors could leak into child processes.
10 - ev_stat watchers could keep an errornous extra ref on the loop, 128 - ev_stat watchers could keep an erroneous extra ref on the loop,
11 preventing exit when unregistering all watchers (testcases 129 preventing exit when unregistering all watchers (testcases
12 provided by ry@tinyclouds.org). 130 provided by ry@tinyclouds.org).
13 - implement EV_WIN32_HANDLE_TO_FD and EV_WIN32_CLOSE_FD configuration 131 - implement EV_WIN32_HANDLE_TO_FD and EV_WIN32_CLOSE_FD configuration
14 symbols to make it easier for apps to do their own fd management. 132 symbols to make it easier for apps to do their own fd management.
15 - support EV_IDLE_ENABLE being disabled in ev++.h 133 - support EV_IDLE_ENABLE being disabled in ev++.h
… …
21 - changed minimum glibc requirement from glibc 2.9 to 2.7, for 139 - changed minimum glibc requirement from glibc 2.9 to 2.7, for
22 signalfd. 140 signalfd.
23 - add missing string.h include (Denis F. Latypoff). 141 - add missing string.h include (Denis F. Latypoff).
24 - only replace ev_stat.prev when we detect an actual difference, 142 - only replace ev_stat.prev when we detect an actual difference,
25 so prev is (almost) always different to attr. this might 143 so prev is (almost) always different to attr. this might
26 have caused the probems with 04_stat.t. 144 have caused the problems with 04_stat.t.
27 - add ev::timer->remaining () method to C++ API. 145 - add ev::timer->remaining () method to C++ API.
28 146
293.8 Sun Aug 9 14:30:45 CEST 2009 1473.8 Sun Aug 9 14:30:45 CEST 2009
30 - incompatible change: do not necessarily reset signal handler 148 - incompatible change: do not necessarily reset signal handler
31 to SIG_DFL when a sighandler is stopped. 149 to SIG_DFL when a sighandler is stopped.
32 - ev_default_destroy did not properly free or zero some members, 150 - ev_default_destroy did not properly free or zero some members,
33 potentially causing crashes and memory corruption on repated 151 potentially causing crashes and memory corruption on repeated
34 ev_default_destroy/ev_default_loop calls. 152 ev_default_destroy/ev_default_loop calls.
35 - take advantage of signalfd on GNU/Linux systems. 153 - take advantage of signalfd on GNU/Linux systems.
36 - document that the signal mask might be in an unspecified 154 - document that the signal mask might be in an unspecified
37 state when using libev's signal handling. 155 state when using libev's signal handling.
38 - take advantage of some GNU/Linux calls to set cloexec/nonblock 156 - take advantage of some GNU/Linux calls to set cloexec/nonblock
… …
73 - correctly zero the idx values for arrays, so destroying and 191 - correctly zero the idx values for arrays, so destroying and
74 reinitialising the default loop actually works (patch by 192 reinitialising the default loop actually works (patch by
75 Malek Hadj-Ali). 193 Malek Hadj-Ali).
76 - implement ev_suspend and ev_resume. 194 - implement ev_suspend and ev_resume.
77 - new EV_CUSTOM revents flag for use by applications. 195 - new EV_CUSTOM revents flag for use by applications.
78 - add documentation section about priorites. 196 - add documentation section about priorities.
79 - add a glossary to the dcoumentation. 197 - add a glossary to the dcoumentation.
80 - extend the ev_fork description slightly. 198 - extend the ev_fork description slightly.
81 - optimize a jump out of call_pending. 199 - optimize a jump out of call_pending.
82 200
833.53 Sun Feb 15 02:38:20 CET 2009 2013.53 Sun Feb 15 02:38:20 CET 2009
… …
160 do similar changes for event.c. 278 do similar changes for event.c.
161 279
1623.45 Tue Oct 21 21:59:26 CEST 2008 2803.45 Tue Oct 21 21:59:26 CEST 2008
163 - disable inotify usage on linux <2.6.25, as it is broken 281 - disable inotify usage on linux <2.6.25, as it is broken
164 (reported by Yoann Vandoorselaere). 282 (reported by Yoann Vandoorselaere).
165 - ev_stat errornously would try to add inotify watchers 283 - ev_stat erroneously would try to add inotify watchers
166 even when inotify wasn't available (this should only 284 even when inotify wasn't available (this should only
167 have a performance impact). 285 have a performance impact).
168 - ev_once now passes both timeout and io to the callback if both 286 - ev_once now passes both timeout and io to the callback if both
169 occur concurrently, instead of giving timeouts precedence. 287 occur concurrently, instead of giving timeouts precedence.
170 - disable EV_USE_INOTIFY when sys/inotify.h is too old. 288 - disable EV_USE_INOTIFY when sys/inotify.h is too old.
… …
238 - enable inlining with gcc versions 2 and 3. 356 - enable inlining with gcc versions 2 and 3.
239 - work around broken poll implementations potentially 357 - work around broken poll implementations potentially
240 not clearing revents field in ev_poll (Brandon Black) 358 not clearing revents field in ev_poll (Brandon Black)
241 (no such systems are known at this time). 359 (no such systems are known at this time).
242 - work around a bug in realloc on openbsd and darwin, 360 - work around a bug in realloc on openbsd and darwin,
243 also makes the errornous valgrind complaints 361 also makes the erroneous valgrind complaints
244 go away (noted by various people). 362 go away (noted by various people).
245 - fix ev_async_pending, add c++ wrapper for ev_async 363 - fix ev_async_pending, add c++ wrapper for ev_async
246 (based on patch sent by Johannes Deisenhofer. 364 (based on patch sent by Johannes Deisenhofer).
247 - add sensible set method to ev::embed. 365 - add sensible set method to ev::embed.
248 - made integer constants type int in ev.h. 366 - made integer constants type int in ev.h.
249 367
2503.2 Wed Apr 2 17:11:19 CEST 2008 3683.2 Wed Apr 2 17:11:19 CEST 2008
251 - fix a 64 bit overflow issue in the select backend, 369 - fix a 64 bit overflow issue in the select backend,

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