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Comparing libev/Changes (file contents):
Revision 1.127 by root, Wed Jul 15 16:08:24 2009 UTC vs.
Revision 1.191 by sf-exg, Thu Oct 21 23:43:17 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: include ev_xyz_start in each example?
4TODO: remain 4 - "PORTING FROM LIBEV 3.X TO 4.X" (in ev.pod) is recommended reading.
5TODO: EV_MINIMAL 5 - ev_embed_stop did not correctly stop the watcher (very good
6 testcase by Vladimir Timofeev).
7 - ev_run will now always update the current loop time - it erroneously
8 didn't when idle watchers were active, causing timers not to fire.
9 - fix a bug where a timeout of zero caused the timer not to fire
10 in the libevent emulation (testcase by Péter Szabó).
11 - applied win32 fixes by Michael Lenaghan (also James Mansion).
12 - replace EV_MINIMAL by EV_FEATURES.
13 - prefer EPOLL_CTL_ADD over EPOLL_CTL_MOD in some more cases, as it
14 seems the former is *much* faster than the latter.
15 - reduce the number of spurious wake-ups with the ports backend.
16 - remove dependency on sys/queue.h on freebsd (patch by Vanilla Hsu).
17 - do async init within ev_async_start, not ev_async_set, which avoids
18 an API quirk where the set function must be called in the C++ API
19 even when there is nothing to set.
20 - add (undocumented) EV_ENABLE when adding events with kqueue,
21 this might help with OS X, which seems to need it despite documenting
22 not to need it (helpfully pointed out by Tilghman Lesher).
23 - do not use poll by default on freebsd, it's broken (what isn't
24 on freebsd...).
25 - configure now prepends -O3, not appends it, so one can still
26 override it.
27 - ev.pod: greatly expanded the portability section, added a porting
28 section, a description of watcher states and made lots of minor fixes.
29 - disable poll backend on AIX, the poll header spams the namespace
30 and it's not worth working around dead platforms (reported
31 and analyzed by Aivars Kalvans).
32 - improve header file compatibility of the standalone eventfd code
33 in an obscure case.
34 - implement EV_AVOID_STDIO option.
35 - do not use sscanf to parse linux version number (smaller, faster,
36 no sscanf dependency).
37 - new EV_CHILD_ENABLE and EV_SIGNAL_ENABLE configurable settings.
38 - update libev.m4 HAVE_CLOCK_SYSCALL test for newer glibcs.
39 - add section on accept() problems to the manpage.
40 - rename EV_TIMEOUT to EV_TIMER.
41 - rename ev_loop_count/depth/verify/loop/unloop.
42 - switch to two-digit minor version.
43 - work around an apparent gentoo compiler bug.
44 - define _DARWIN_UNLIMITED_SELECT. just so.
45 - use enum instead of #define for most constants.
46 - improve compatibility to older C++ compilers.
6 47
7 - new functionality: ev_set_userdata, ev_userdata, 483.9 Thu Dec 31 07:59:59 CET 2009
8 ev_set_invoke_pending_cb, ev_set_loop_release_cb, 49 - signalfd is no longer used by default and has to be requested
9 ev_invoke_pending, together with a long example about thread 50 explicitly - this means that easy to catch bugs become hard to
10 locking. 51 catch race conditions, but the users have spoken.
52 - point out the unspecified signal mask in the documentation, and
53 that this is a race condition regardless of EV_SIGNALFD.
54 - backport inotify code to C89.
55 - inotify file descriptors could leak into child processes.
56 - ev_stat watchers could keep an errornous extra ref on the loop,
57 preventing exit when unregistering all watchers (testcases
58 provided by ry@tinyclouds.org).
59 - implement EV_WIN32_HANDLE_TO_FD and EV_WIN32_CLOSE_FD configuration
60 symbols to make it easier for apps to do their own fd management.
61 - support EV_IDLE_ENABLE being disabled in ev++.h
62 (patch by Didier Spezia).
63 - take advantage of inotify_init1, if available, to set cloexec/nonblock
64 on fd creation, to avoid races.
65 - the signal handling pipe wasn't always initialised under windows
66 (analysed by lekma).
67 - changed minimum glibc requirement from glibc 2.9 to 2.7, for
68 signalfd.
69 - add missing string.h include (Denis F. Latypoff).
70 - only replace ev_stat.prev when we detect an actual difference,
71 so prev is (almost) always different to attr. this might
72 have caused the problems with 04_stat.t.
73 - add ev::timer->remaining () method to C++ API.
74
753.8 Sun Aug 9 14:30:45 CEST 2009
76 - incompatible change: do not necessarily reset signal handler
77 to SIG_DFL when a sighandler is stopped.
78 - ev_default_destroy did not properly free or zero some members,
79 potentially causing crashes and memory corruption on repeated
80 ev_default_destroy/ev_default_loop calls.
81 - take advantage of signalfd on GNU/Linux systems.
82 - document that the signal mask might be in an unspecified
83 state when using libev's signal handling.
84 - take advantage of some GNU/Linux calls to set cloexec/nonblock
85 on fd creation, to avoid race conditions.
86
873.7 Fri Jul 17 16:36:32 CEST 2009
11 - ev_unloop and ev_loop wrongly used a global variable to exit loops, 88 - 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...). 89 instead of using a per-loop variable (bug caught by accident...).
90 - the ev_set_io_collect_interval interpretation has changed.
91 - add new functionality: ev_set_userdata, ev_userdata,
92 ev_set_invoke_pending_cb, ev_set_loop_release_cb,
93 ev_invoke_pending, ev_pending_count, together with a long example
94 about thread locking.
95 - add ev_timer_remaining (as requested by Denis F. Latypoff).
96 - add ev_loop_depth.
13 - calling ev_unloop in fork/prepare watchers will no longer poll 97 - calling ev_unloop in fork/prepare watchers will no longer poll
14 for new events. 98 for new events.
15 - Denis F. Latypoff corrected many typos in example code snippets. 99 - 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- 100 - honor autoconf detection of EV_USE_CLOCK_SYSCALL, also double-
18 check that the syscall number is available before trying to 101 check that the syscall number is available before trying to
19 use it (reported by ry@tinyclouds). 102 use it (reported by ry@tinyclouds).
20 - use GetSystemTimeAsFileTime instead of _timeb on windows, for 103 - use GetSystemTimeAsFileTime instead of _timeb on windows, for
21 slightly higher accuracy. 104 slightly higher accuracy.
22 - properly declare ev_loop_verify and ev_now_update even when 105 - properly declare ev_loop_verify and ev_now_update even when
23 !EV_MULTIPLICITY. 106 !EV_MULTIPLICITY.
24 - implement ev_loop_depth.
25 - do not compile in any priority code when EV_MAXPRI == EV_MINPRI. 107 - do not compile in any priority code when EV_MAXPRI == EV_MINPRI.
26 - support EV_MINIMAL==2 for a reduced API. 108 - support EV_MINIMAL==2 for a reduced API.
27 - actually 0-initialise struct sigaction when installing signals. 109 - actually 0-initialise struct sigaction when installing signals.
28 - add section on hibernate and stopped processes to ev_timer docs. 110 - add section on hibernate and stopped processes to ev_timer docs.
29 111
… …
124 do similar changes for event.c. 206 do similar changes for event.c.
125 207
1263.45 Tue Oct 21 21:59:26 CEST 2008 2083.45 Tue Oct 21 21:59:26 CEST 2008
127 - disable inotify usage on linux <2.6.25, as it is broken 209 - disable inotify usage on linux <2.6.25, as it is broken
128 (reported by Yoann Vandoorselaere). 210 (reported by Yoann Vandoorselaere).
129 - ev_stat errornously would try to add inotify watchers 211 - ev_stat erroneously would try to add inotify watchers
130 even when inotify wasn't available (this should only 212 even when inotify wasn't available (this should only
131 have a performance impact). 213 have a performance impact).
132 - ev_once now passes both timeout and io to the callback if both 214 - ev_once now passes both timeout and io to the callback if both
133 occur concurrently, instead of giving timeouts precedence. 215 occur concurrently, instead of giving timeouts precedence.
134 - disable EV_USE_INOTIFY when sys/inotify.h is too old. 216 - disable EV_USE_INOTIFY when sys/inotify.h is too old.
… …
202 - enable inlining with gcc versions 2 and 3. 284 - enable inlining with gcc versions 2 and 3.
203 - work around broken poll implementations potentially 285 - work around broken poll implementations potentially
204 not clearing revents field in ev_poll (Brandon Black) 286 not clearing revents field in ev_poll (Brandon Black)
205 (no such systems are known at this time). 287 (no such systems are known at this time).
206 - work around a bug in realloc on openbsd and darwin, 288 - work around a bug in realloc on openbsd and darwin,
207 also makes the errornous valgrind complaints 289 also makes the erroneous valgrind complaints
208 go away (noted by various people). 290 go away (noted by various people).
209 - fix ev_async_pending, add c++ wrapper for ev_async 291 - fix ev_async_pending, add c++ wrapper for ev_async
210 (based on patch sent by Johannes Deisenhofer. 292 (based on patch sent by Johannes Deisenhofer).
211 - add sensible set method to ev::embed. 293 - add sensible set method to ev::embed.
212 - made integer constants type int in ev.h. 294 - made integer constants type int in ev.h.
213 295
2143.2 Wed Apr 2 17:11:19 CEST 2008 2963.2 Wed Apr 2 17:11:19 CEST 2008
215 - fix a 64 bit overflow issue in the select backend, 297 - fix a 64 bit overflow issue in the select backend,

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