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Comparing libev/Changes (file contents):
Revision 1.106 by root, Wed Apr 15 17:49:26 2009 UTC vs.
Revision 1.203 by root, Thu Oct 28 04:55:19 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_time_freeze, ev_time_thaw 3 - change EV_UNDEF to 0xffffffff to silence some overzealous compilers.
4TODO: ev_walk 4
5TODO: ev_stop_all 54.00 Mon Oct 25 12:32:12 CEST 2010
6TODO: fix signal handling(?) under win32 6 - "PORTING FROM LIBEV 3.X TO 4.X" (in ev.pod) is recommended reading.
73.54 7 - ev_embed_stop did not correctly stop the watcher (very good
8 testcase by Vladimir Timofeev).
9 - ev_run will now always update the current loop time - it erroneously
10 didn't when idle watchers were active, causing timers not to fire.
11 - fix a bug where a timeout of zero caused the timer not to fire
12 in the libevent emulation (testcase by Péter Szabó).
13 - applied win32 fixes by Michael Lenaghan (also James Mansion).
14 - replace EV_MINIMAL by EV_FEATURES.
15 - prefer EPOLL_CTL_ADD over EPOLL_CTL_MOD in some more cases, as it
16 seems the former is *much* faster than the latter.
17 - linux kernel version detection (for inotify bug workarounds)
18 did not work properly.
19 - reduce the number of spurious wake-ups with the ports backend.
20 - remove dependency on sys/queue.h on freebsd (patch by Vanilla Hsu).
21 - do async init within ev_async_start, not ev_async_set, which avoids
22 an API quirk where the set function must be called in the C++ API
23 even when there is nothing to set.
24 - add (undocumented) EV_ENABLE when adding events with kqueue,
25 this might help with OS X, which seems to need it despite documenting
26 not to need it (helpfully pointed out by Tilghman Lesher).
27 - do not use poll by default on freebsd, it's broken (what isn't
28 on freebsd...).
29 - allow to embed epoll on kernels >= 2.6.32.
30 - configure now prepends -O3, not appends it, so one can still
31 override it.
32 - ev.pod: greatly expanded the portability section, added a porting
33 section, a description of watcher states and made lots of minor fixes.
34 - disable poll backend on AIX, the poll header spams the namespace
35 and it's not worth working around dead platforms (reported
36 and analyzed by Aivars Kalvans).
37 - improve header file compatibility of the standalone eventfd code
38 in an obscure case.
39 - implement EV_AVOID_STDIO option.
40 - do not use sscanf to parse linux version number (smaller, faster,
41 no sscanf dependency).
42 - new EV_CHILD_ENABLE and EV_SIGNAL_ENABLE configurable settings.
43 - update libev.m4 HAVE_CLOCK_SYSCALL test for newer glibcs.
44 - add section on accept() problems to the manpage.
45 - rename EV_TIMEOUT to EV_TIMER.
46 - rename ev_loop_count/depth/verify/loop/unloop.
47 - remove ev_default_destroy and ev_default_fork.
48 - switch to two-digit minor version.
49 - work around an apparent gentoo compiler bug.
50 - define _DARWIN_UNLIMITED_SELECT. just so.
51 - use enum instead of #define for most constants.
52 - improve compatibility to older C++ compilers.
53 - (experimental) ev_run/ev_default_loop/ev_break/ev_loop_new have now
54 default arguments when compiled as C++.
55 - enable automake dependency tracking.
56 - ev_loop_new no longer leaks memory when loop creation failed.
57 - new ev_cleanup watcher type.
58
593.9 Thu Dec 31 07:59:59 CET 2009
60 - signalfd is no longer used by default and has to be requested
61 explicitly - this means that easy to catch bugs become hard to
62 catch race conditions, but the users have spoken.
63 - point out the unspecified signal mask in the documentation, and
64 that this is a race condition regardless of EV_SIGNALFD.
65 - backport inotify code to C89.
66 - inotify file descriptors could leak into child processes.
67 - ev_stat watchers could keep an errornous extra ref on the loop,
68 preventing exit when unregistering all watchers (testcases
69 provided by ry@tinyclouds.org).
70 - implement EV_WIN32_HANDLE_TO_FD and EV_WIN32_CLOSE_FD configuration
71 symbols to make it easier for apps to do their own fd management.
72 - support EV_IDLE_ENABLE being disabled in ev++.h
73 (patch by Didier Spezia).
74 - take advantage of inotify_init1, if available, to set cloexec/nonblock
75 on fd creation, to avoid races.
76 - the signal handling pipe wasn't always initialised under windows
77 (analysed by lekma).
78 - changed minimum glibc requirement from glibc 2.9 to 2.7, for
79 signalfd.
80 - add missing string.h include (Denis F. Latypoff).
81 - only replace ev_stat.prev when we detect an actual difference,
82 so prev is (almost) always different to attr. this might
83 have caused the problems with 04_stat.t.
84 - add ev::timer->remaining () method to C++ API.
85
863.8 Sun Aug 9 14:30:45 CEST 2009
87 - incompatible change: do not necessarily reset signal handler
88 to SIG_DFL when a sighandler is stopped.
89 - ev_default_destroy did not properly free or zero some members,
90 potentially causing crashes and memory corruption on repeated
91 ev_default_destroy/ev_default_loop calls.
92 - take advantage of signalfd on GNU/Linux systems.
93 - document that the signal mask might be in an unspecified
94 state when using libev's signal handling.
95 - take advantage of some GNU/Linux calls to set cloexec/nonblock
96 on fd creation, to avoid race conditions.
97
983.7 Fri Jul 17 16:36:32 CEST 2009
99 - ev_unloop and ev_loop wrongly used a global variable to exit loops,
100 instead of using a per-loop variable (bug caught by accident...).
101 - the ev_set_io_collect_interval interpretation has changed.
102 - add new functionality: ev_set_userdata, ev_userdata,
103 ev_set_invoke_pending_cb, ev_set_loop_release_cb,
104 ev_invoke_pending, ev_pending_count, together with a long example
105 about thread locking.
106 - add ev_timer_remaining (as requested by Denis F. Latypoff).
107 - add ev_loop_depth.
108 - calling ev_unloop in fork/prepare watchers will no longer poll
109 for new events.
110 - Denis F. Latypoff corrected many typos in example code snippets.
111 - honor autoconf detection of EV_USE_CLOCK_SYSCALL, also double-
112 check that the syscall number is available before trying to
113 use it (reported by ry@tinyclouds).
114 - use GetSystemTimeAsFileTime instead of _timeb on windows, for
115 slightly higher accuracy.
116 - properly declare ev_loop_verify and ev_now_update even when
117 !EV_MULTIPLICITY.
118 - do not compile in any priority code when EV_MAXPRI == EV_MINPRI.
119 - support EV_MINIMAL==2 for a reduced API.
120 - actually 0-initialise struct sigaction when installing signals.
121 - add section on hibernate and stopped processes to ev_timer docs.
122
1233.6 Tue Apr 28 02:49:30 CEST 2009
124 - multiple timers becoming ready within an event loop iteration
125 will be invoked in the "correct" order now.
8 - do not leave the event loop early just because we have no active 126 - do not leave the event loop early just because we have no active
9 watchers, fixing a problem when embedding a kqueue loop 127 watchers, fixing a problem when embedding a kqueue loop
10 that has active kernel events but no registered watchers 128 that has active kernel events but no registered watchers
11 (reported by blacksand blacksand). 129 (reported by blacksand blacksand).
12 - correctly zero the idx values for arrays, so destroying and 130 - correctly zero the idx values for arrays, so destroying and
13 reinitialising the default loop actually works (patch by 131 reinitialising the default loop actually works (patch by
14 Malek Hadj-Ali). 132 Malek Hadj-Ali).
133 - implement ev_suspend and ev_resume.
15 - new EV_CUSTOM revents flag for use by applications. 134 - new EV_CUSTOM revents flag for use by applications.
135 - add documentation section about priorites.
136 - add a glossary to the dcoumentation.
137 - extend the ev_fork description slightly.
138 - optimize a jump out of call_pending.
16 139
173.53 Sun Feb 15 02:38:20 CET 2009 1403.53 Sun Feb 15 02:38:20 CET 2009
18 - fix a bug in event pipe creation on win32 that would cause a 141 - fix a bug in event pipe creation on win32 that would cause a
19 failed assertion on event loop creation (patch by Malek Hadj-Ali). 142 failed assertion on event loop creation (patch by Malek Hadj-Ali).
20 - probe for CLOCK_REALTIME support at runtime as well and fall 143 - probe for CLOCK_REALTIME support at runtime as well and fall
… …
94 do similar changes for event.c. 217 do similar changes for event.c.
95 218
963.45 Tue Oct 21 21:59:26 CEST 2008 2193.45 Tue Oct 21 21:59:26 CEST 2008
97 - disable inotify usage on linux <2.6.25, as it is broken 220 - disable inotify usage on linux <2.6.25, as it is broken
98 (reported by Yoann Vandoorselaere). 221 (reported by Yoann Vandoorselaere).
99 - ev_stat errornously would try to add inotify watchers 222 - ev_stat erroneously would try to add inotify watchers
100 even when inotify wasn't available (this should only 223 even when inotify wasn't available (this should only
101 have a performance impact). 224 have a performance impact).
102 - ev_once now passes both timeout and io to the callback if both 225 - ev_once now passes both timeout and io to the callback if both
103 occur concurrently, instead of giving timeouts precedence. 226 occur concurrently, instead of giving timeouts precedence.
104 - disable EV_USE_INOTIFY when sys/inotify.h is too old. 227 - disable EV_USE_INOTIFY when sys/inotify.h is too old.
… …
172 - enable inlining with gcc versions 2 and 3. 295 - enable inlining with gcc versions 2 and 3.
173 - work around broken poll implementations potentially 296 - work around broken poll implementations potentially
174 not clearing revents field in ev_poll (Brandon Black) 297 not clearing revents field in ev_poll (Brandon Black)
175 (no such systems are known at this time). 298 (no such systems are known at this time).
176 - work around a bug in realloc on openbsd and darwin, 299 - work around a bug in realloc on openbsd and darwin,
177 also makes the errornous valgrind complaints 300 also makes the erroneous valgrind complaints
178 go away (noted by various people). 301 go away (noted by various people).
179 - fix ev_async_pending, add c++ wrapper for ev_async 302 - fix ev_async_pending, add c++ wrapper for ev_async
180 (based on patch sent by Johannes Deisenhofer. 303 (based on patch sent by Johannes Deisenhofer).
181 - add sensible set method to ev::embed. 304 - add sensible set method to ev::embed.
182 - made integer constants type int in ev.h. 305 - made integer constants type int in ev.h.
183 306
1843.2 Wed Apr 2 17:11:19 CEST 2008 3073.2 Wed Apr 2 17:11:19 CEST 2008
185 - fix a 64 bit overflow issue in the select backend, 308 - fix a 64 bit overflow issue in the select backend,

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