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Comparing libev/Changes (file contents):
Revision 1.127 by root, Wed Jul 15 16:08:24 2009 UTC vs.
Revision 1.210 by root, Thu Dec 30 07:27:55 2010 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_walk 3TODO: move some other examples to common idioms? combining watchers,
4TODO: remain 4thread usage, coroutine switch?
5TODO: EV_MINIMAL
6 5
7 - new functionality: ev_set_userdata, ev_userdata, 64.03
8 ev_set_invoke_pending_cb, ev_set_loop_release_cb, 7 - define EV_READ/EV_WRITE as macros in event.h, as some programs use
9 ev_invoke_pending, together with a long example about thread 8 #ifdef to test for them.
10 locking. 9
104.01 Fri Nov 5 21:51:29 CET 2010
11 - automake fucked it up, apparently, --add-missing -f is not quite enough
12 to make it update its files, so 4.00 didn't install ev++.h and
13 event.h on make install. grrr.
14 - ev_loop(count|depth) didn't return anything (Robin Haberkorn).
15 - change EV_UNDEF to 0xffffffff to silence some overzealous compilers.
16 - use "(libev) " prefix for all libev error messages now.
17
184.00 Mon Oct 25 12:32:12 CEST 2010
19 - "PORTING FROM LIBEV 3.X TO 4.X" (in ev.pod) is recommended reading.
20 - ev_embed_stop did not correctly stop the watcher (very good
21 testcase by Vladimir Timofeev).
22 - ev_run will now always update the current loop time - it erroneously
23 didn't when idle watchers were active, causing timers not to fire.
24 - fix a bug where a timeout of zero caused the timer not to fire
25 in the libevent emulation (testcase by Péter Szabó).
26 - applied win32 fixes by Michael Lenaghan (also James Mansion).
27 - replace EV_MINIMAL by EV_FEATURES.
28 - prefer EPOLL_CTL_ADD over EPOLL_CTL_MOD in some more cases, as it
29 seems the former is *much* faster than the latter.
30 - linux kernel version detection (for inotify bug workarounds)
31 did not work properly.
32 - reduce the number of spurious wake-ups with the ports backend.
33 - remove dependency on sys/queue.h on freebsd (patch by Vanilla Hsu).
34 - do async init within ev_async_start, not ev_async_set, which avoids
35 an API quirk where the set function must be called in the C++ API
36 even when there is nothing to set.
37 - add (undocumented) EV_ENABLE when adding events with kqueue,
38 this might help with OS X, which seems to need it despite documenting
39 not to need it (helpfully pointed out by Tilghman Lesher).
40 - do not use poll by default on freebsd, it's broken (what isn't
41 on freebsd...).
42 - allow to embed epoll on kernels >= 2.6.32.
43 - configure now prepends -O3, not appends it, so one can still
44 override it.
45 - ev.pod: greatly expanded the portability section, added a porting
46 section, a description of watcher states and made lots of minor fixes.
47 - disable poll backend on AIX, the poll header spams the namespace
48 and it's not worth working around dead platforms (reported
49 and analyzed by Aivars Kalvans).
50 - improve header file compatibility of the standalone eventfd code
51 in an obscure case.
52 - implement EV_AVOID_STDIO option.
53 - do not use sscanf to parse linux version number (smaller, faster,
54 no sscanf dependency).
55 - new EV_CHILD_ENABLE and EV_SIGNAL_ENABLE configurable settings.
56 - update libev.m4 HAVE_CLOCK_SYSCALL test for newer glibcs.
57 - add section on accept() problems to the manpage.
58 - rename EV_TIMEOUT to EV_TIMER.
59 - rename ev_loop_count/depth/verify/loop/unloop.
60 - remove ev_default_destroy and ev_default_fork.
61 - switch to two-digit minor version.
62 - work around an apparent gentoo compiler bug.
63 - define _DARWIN_UNLIMITED_SELECT. just so.
64 - use enum instead of #define for most constants.
65 - improve compatibility to older C++ compilers.
66 - (experimental) ev_run/ev_default_loop/ev_break/ev_loop_new have now
67 default arguments when compiled as C++.
68 - enable automake dependency tracking.
69 - ev_loop_new no longer leaks memory when loop creation failed.
70 - new ev_cleanup watcher type.
71
723.9 Thu Dec 31 07:59:59 CET 2009
73 - signalfd is no longer used by default and has to be requested
74 explicitly - this means that easy to catch bugs become hard to
75 catch race conditions, but the users have spoken.
76 - point out the unspecified signal mask in the documentation, and
77 that this is a race condition regardless of EV_SIGNALFD.
78 - backport inotify code to C89.
79 - inotify file descriptors could leak into child processes.
80 - ev_stat watchers could keep an errornous extra ref on the loop,
81 preventing exit when unregistering all watchers (testcases
82 provided by ry@tinyclouds.org).
83 - implement EV_WIN32_HANDLE_TO_FD and EV_WIN32_CLOSE_FD configuration
84 symbols to make it easier for apps to do their own fd management.
85 - support EV_IDLE_ENABLE being disabled in ev++.h
86 (patch by Didier Spezia).
87 - take advantage of inotify_init1, if available, to set cloexec/nonblock
88 on fd creation, to avoid races.
89 - the signal handling pipe wasn't always initialised under windows
90 (analysed by lekma).
91 - changed minimum glibc requirement from glibc 2.9 to 2.7, for
92 signalfd.
93 - add missing string.h include (Denis F. Latypoff).
94 - only replace ev_stat.prev when we detect an actual difference,
95 so prev is (almost) always different to attr. this might
96 have caused the problems with 04_stat.t.
97 - add ev::timer->remaining () method to C++ API.
98
993.8 Sun Aug 9 14:30:45 CEST 2009
100 - incompatible change: do not necessarily reset signal handler
101 to SIG_DFL when a sighandler is stopped.
102 - ev_default_destroy did not properly free or zero some members,
103 potentially causing crashes and memory corruption on repeated
104 ev_default_destroy/ev_default_loop calls.
105 - take advantage of signalfd on GNU/Linux systems.
106 - document that the signal mask might be in an unspecified
107 state when using libev's signal handling.
108 - take advantage of some GNU/Linux calls to set cloexec/nonblock
109 on fd creation, to avoid race conditions.
110
1113.7 Fri Jul 17 16:36:32 CEST 2009
11 - ev_unloop and ev_loop wrongly used a global variable to exit loops, 112 - ev_unloop and ev_loop wrongly used a global variable to exit loops,
12 instead of using a per-loop variable (bug caught by accident...). 113 instead of using a per-loop variable (bug caught by accident...).
114 - the ev_set_io_collect_interval interpretation has changed.
115 - add new functionality: ev_set_userdata, ev_userdata,
116 ev_set_invoke_pending_cb, ev_set_loop_release_cb,
117 ev_invoke_pending, ev_pending_count, together with a long example
118 about thread locking.
119 - add ev_timer_remaining (as requested by Denis F. Latypoff).
120 - add ev_loop_depth.
13 - calling ev_unloop in fork/prepare watchers will no longer poll 121 - calling ev_unloop in fork/prepare watchers will no longer poll
14 for new events. 122 for new events.
15 - Denis F. Latypoff corrected many typos in example code snippets. 123 - Denis F. Latypoff corrected many typos in example code snippets.
16 - the ev_set_io_collect_interval interpretation has changed.
17 - honor autoconf detection of EV_USE_CLOCK_SYSCALL, also double- 124 - honor autoconf detection of EV_USE_CLOCK_SYSCALL, also double-
18 check that the syscall number is available before trying to 125 check that the syscall number is available before trying to
19 use it (reported by ry@tinyclouds). 126 use it (reported by ry@tinyclouds).
20 - use GetSystemTimeAsFileTime instead of _timeb on windows, for 127 - use GetSystemTimeAsFileTime instead of _timeb on windows, for
21 slightly higher accuracy. 128 slightly higher accuracy.
22 - properly declare ev_loop_verify and ev_now_update even when 129 - properly declare ev_loop_verify and ev_now_update even when
23 !EV_MULTIPLICITY. 130 !EV_MULTIPLICITY.
24 - implement ev_loop_depth.
25 - do not compile in any priority code when EV_MAXPRI == EV_MINPRI. 131 - do not compile in any priority code when EV_MAXPRI == EV_MINPRI.
26 - support EV_MINIMAL==2 for a reduced API. 132 - support EV_MINIMAL==2 for a reduced API.
27 - actually 0-initialise struct sigaction when installing signals. 133 - actually 0-initialise struct sigaction when installing signals.
28 - add section on hibernate and stopped processes to ev_timer docs. 134 - add section on hibernate and stopped processes to ev_timer docs.
29 135
… …
124 do similar changes for event.c. 230 do similar changes for event.c.
125 231
1263.45 Tue Oct 21 21:59:26 CEST 2008 2323.45 Tue Oct 21 21:59:26 CEST 2008
127 - disable inotify usage on linux <2.6.25, as it is broken 233 - disable inotify usage on linux <2.6.25, as it is broken
128 (reported by Yoann Vandoorselaere). 234 (reported by Yoann Vandoorselaere).
129 - ev_stat errornously would try to add inotify watchers 235 - ev_stat erroneously would try to add inotify watchers
130 even when inotify wasn't available (this should only 236 even when inotify wasn't available (this should only
131 have a performance impact). 237 have a performance impact).
132 - ev_once now passes both timeout and io to the callback if both 238 - ev_once now passes both timeout and io to the callback if both
133 occur concurrently, instead of giving timeouts precedence. 239 occur concurrently, instead of giving timeouts precedence.
134 - disable EV_USE_INOTIFY when sys/inotify.h is too old. 240 - disable EV_USE_INOTIFY when sys/inotify.h is too old.
… …
202 - enable inlining with gcc versions 2 and 3. 308 - enable inlining with gcc versions 2 and 3.
203 - work around broken poll implementations potentially 309 - work around broken poll implementations potentially
204 not clearing revents field in ev_poll (Brandon Black) 310 not clearing revents field in ev_poll (Brandon Black)
205 (no such systems are known at this time). 311 (no such systems are known at this time).
206 - work around a bug in realloc on openbsd and darwin, 312 - work around a bug in realloc on openbsd and darwin,
207 also makes the errornous valgrind complaints 313 also makes the erroneous valgrind complaints
208 go away (noted by various people). 314 go away (noted by various people).
209 - fix ev_async_pending, add c++ wrapper for ev_async 315 - fix ev_async_pending, add c++ wrapper for ev_async
210 (based on patch sent by Johannes Deisenhofer. 316 (based on patch sent by Johannes Deisenhofer).
211 - add sensible set method to ev::embed. 317 - add sensible set method to ev::embed.
212 - made integer constants type int in ev.h. 318 - made integer constants type int in ev.h.
213 319
2143.2 Wed Apr 2 17:11:19 CEST 2008 3203.2 Wed Apr 2 17:11:19 CEST 2008
215 - fix a 64 bit overflow issue in the select backend, 321 - fix a 64 bit overflow issue in the select backend,

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