| 1 | Revision history for libev, a high-performance and full-featured event loop. |
1 | Revision history for libev, a high-performance and full-featured event loop. |
| 2 | |
2 | |
| 3 | TODO: ev_walk |
3 | TODO: ev_loop_prefork hint? |
| 4 | TODO: child wactehr execution order w.r.t. childsigcb reg. priorities |
4 | |
| 5 | TODO: remain |
5 | - change the default periodic reschedule function to hopefully be more |
|
|
6 | exact and correct even in corner cases or in the far future. |
|
|
7 | - document reasonable ranges for interval and offset. |
|
|
8 | - do not rely on -lm anymore: use it when available but use our |
|
|
9 | own floor () if it is missing. This should make it easier to embed. |
|
|
10 | |
|
|
11 | 4.04 Wed Feb 16 09:01:51 CET 2011 |
|
|
12 | - fix two problems in the native win32 backend, where reuse of fd's |
|
|
13 | with different underlying handles caused handles not to be removed |
|
|
14 | or added to the select set (analyzed and tested by Bert Belder). |
|
|
15 | - do no rely on ceil() in ev_e?poll.c. |
|
|
16 | - backport libev to HP-UX versions before 11 v3. |
|
|
17 | - configure did not detect nanosleep and clock_gettime properly when |
|
|
18 | they are available in the libc (as opposed to -lrt). |
|
|
19 | |
|
|
20 | 4.03 Tue Jan 11 14:37:25 CET 2011 |
|
|
21 | - officially support polling files with all backends. |
|
|
22 | - support files, /dev/zero etc. the same way as select in the epoll |
|
|
23 | backend, by generating events on our own. |
|
|
24 | - ports backend: work around solaris bug 6874410 and many related ones |
|
|
25 | (EINTR, maybe more), with no performance loss (note that the solaris |
|
|
26 | bug report is actually wrong, reality is far more bizarre and broken |
|
|
27 | than that). |
|
|
28 | - define EV_READ/EV_WRITE as macros in event.h, as some programs use |
|
|
29 | #ifdef to test for them. |
|
|
30 | - new (experimental) function: ev_feed_signal. |
|
|
31 | - new (to become default) EVFLAG_NOSIGMASK flag. |
|
|
32 | - new EVBACKEND_MASK symbol. |
|
|
33 | - updated COMMON IDIOMS SECTION. |
|
|
34 | |
|
|
35 | 4.01 Fri Nov 5 21:51:29 CET 2010 |
|
|
36 | - automake fucked it up, apparently, --add-missing -f is not quite enough |
|
|
37 | to make it update its files, so 4.00 didn't install ev++.h and |
|
|
38 | event.h on make install. grrr. |
|
|
39 | - ev_loop(count|depth) didn't return anything (Robin Haberkorn). |
|
|
40 | - change EV_UNDEF to 0xffffffff to silence some overzealous compilers. |
|
|
41 | - use "(libev) " prefix for all libev error messages now. |
|
|
42 | |
|
|
43 | 4.00 Mon Oct 25 12:32:12 CEST 2010 |
|
|
44 | - "PORTING FROM LIBEV 3.X TO 4.X" (in ev.pod) is recommended reading. |
|
|
45 | - ev_embed_stop did not correctly stop the watcher (very good |
|
|
46 | testcase by Vladimir Timofeev). |
|
|
47 | - ev_run will now always update the current loop time - it erroneously |
|
|
48 | didn't when idle watchers were active, causing timers not to fire. |
|
|
49 | - fix a bug where a timeout of zero caused the timer not to fire |
|
|
50 | in the libevent emulation (testcase by Péter Szabó). |
|
|
51 | - applied win32 fixes by Michael Lenaghan (also James Mansion). |
|
|
52 | - replace EV_MINIMAL by EV_FEATURES. |
|
|
53 | - prefer EPOLL_CTL_ADD over EPOLL_CTL_MOD in some more cases, as it |
|
|
54 | seems the former is *much* faster than the latter. |
|
|
55 | - linux kernel version detection (for inotify bug workarounds) |
|
|
56 | did not work properly. |
|
|
57 | - reduce the number of spurious wake-ups with the ports backend. |
|
|
58 | - remove dependency on sys/queue.h on freebsd (patch by Vanilla Hsu). |
|
|
59 | - do async init within ev_async_start, not ev_async_set, which avoids |
|
|
60 | an API quirk where the set function must be called in the C++ API |
|
|
61 | even when there is nothing to set. |
|
|
62 | - add (undocumented) EV_ENABLE when adding events with kqueue, |
|
|
63 | this might help with OS X, which seems to need it despite documenting |
|
|
64 | not to need it (helpfully pointed out by Tilghman Lesher). |
|
|
65 | - do not use poll by default on freebsd, it's broken (what isn't |
|
|
66 | on freebsd...). |
|
|
67 | - allow to embed epoll on kernels >= 2.6.32. |
|
|
68 | - configure now prepends -O3, not appends it, so one can still |
|
|
69 | override it. |
|
|
70 | - ev.pod: greatly expanded the portability section, added a porting |
|
|
71 | section, a description of watcher states and made lots of minor fixes. |
|
|
72 | - disable poll backend on AIX, the poll header spams the namespace |
|
|
73 | and it's not worth working around dead platforms (reported |
|
|
74 | and analyzed by Aivars Kalvans). |
|
|
75 | - improve header file compatibility of the standalone eventfd code |
|
|
76 | in an obscure case. |
|
|
77 | - implement EV_AVOID_STDIO option. |
|
|
78 | - do not use sscanf to parse linux version number (smaller, faster, |
|
|
79 | no sscanf dependency). |
|
|
80 | - new EV_CHILD_ENABLE and EV_SIGNAL_ENABLE configurable settings. |
|
|
81 | - update libev.m4 HAVE_CLOCK_SYSCALL test for newer glibcs. |
|
|
82 | - add section on accept() problems to the manpage. |
|
|
83 | - rename EV_TIMEOUT to EV_TIMER. |
|
|
84 | - rename ev_loop_count/depth/verify/loop/unloop. |
|
|
85 | - remove ev_default_destroy and ev_default_fork. |
|
|
86 | - switch to two-digit minor version. |
|
|
87 | - work around an apparent gentoo compiler bug. |
|
|
88 | - define _DARWIN_UNLIMITED_SELECT. just so. |
|
|
89 | - use enum instead of #define for most constants. |
|
|
90 | - improve compatibility to older C++ compilers. |
|
|
91 | - (experimental) ev_run/ev_default_loop/ev_break/ev_loop_new have now |
|
|
92 | default arguments when compiled as C++. |
|
|
93 | - enable automake dependency tracking. |
|
|
94 | - ev_loop_new no longer leaks memory when loop creation failed. |
|
|
95 | - new ev_cleanup watcher type. |
|
|
96 | |
|
|
97 | 3.9 Thu Dec 31 07:59:59 CET 2009 |
|
|
98 | - signalfd is no longer used by default and has to be requested |
|
|
99 | explicitly - this means that easy to catch bugs become hard to |
|
|
100 | catch race conditions, but the users have spoken. |
|
|
101 | - point out the unspecified signal mask in the documentation, and |
|
|
102 | that this is a race condition regardless of EV_SIGNALFD. |
|
|
103 | - backport inotify code to C89. |
|
|
104 | - inotify file descriptors could leak into child processes. |
|
|
105 | - ev_stat watchers could keep an errornous extra ref on the loop, |
|
|
106 | preventing exit when unregistering all watchers (testcases |
|
|
107 | provided by ry@tinyclouds.org). |
|
|
108 | - implement EV_WIN32_HANDLE_TO_FD and EV_WIN32_CLOSE_FD configuration |
|
|
109 | symbols to make it easier for apps to do their own fd management. |
|
|
110 | - support EV_IDLE_ENABLE being disabled in ev++.h |
|
|
111 | (patch by Didier Spezia). |
|
|
112 | - take advantage of inotify_init1, if available, to set cloexec/nonblock |
|
|
113 | on fd creation, to avoid races. |
|
|
114 | - the signal handling pipe wasn't always initialised under windows |
|
|
115 | (analysed by lekma). |
|
|
116 | - changed minimum glibc requirement from glibc 2.9 to 2.7, for |
|
|
117 | signalfd. |
|
|
118 | - add missing string.h include (Denis F. Latypoff). |
|
|
119 | - only replace ev_stat.prev when we detect an actual difference, |
|
|
120 | so prev is (almost) always different to attr. this might |
|
|
121 | have caused the problems with 04_stat.t. |
|
|
122 | - add ev::timer->remaining () method to C++ API. |
|
|
123 | |
|
|
124 | 3.8 Sun Aug 9 14:30:45 CEST 2009 |
|
|
125 | - incompatible change: do not necessarily reset signal handler |
|
|
126 | to SIG_DFL when a sighandler is stopped. |
|
|
127 | - ev_default_destroy did not properly free or zero some members, |
|
|
128 | potentially causing crashes and memory corruption on repeated |
|
|
129 | ev_default_destroy/ev_default_loop calls. |
|
|
130 | - take advantage of signalfd on GNU/Linux systems. |
|
|
131 | - document that the signal mask might be in an unspecified |
|
|
132 | state when using libev's signal handling. |
|
|
133 | - take advantage of some GNU/Linux calls to set cloexec/nonblock |
|
|
134 | on fd creation, to avoid race conditions. |
|
|
135 | |
|
|
136 | 3.7 Fri Jul 17 16:36:32 CEST 2009 |
|
|
137 | - ev_unloop and ev_loop wrongly used a global variable to exit loops, |
|
|
138 | instead of using a per-loop variable (bug caught by accident...). |
|
|
139 | - the ev_set_io_collect_interval interpretation has changed. |
|
|
140 | - add new functionality: ev_set_userdata, ev_userdata, |
|
|
141 | ev_set_invoke_pending_cb, ev_set_loop_release_cb, |
|
|
142 | ev_invoke_pending, ev_pending_count, together with a long example |
|
|
143 | about thread locking. |
|
|
144 | - add ev_timer_remaining (as requested by Denis F. Latypoff). |
|
|
145 | - add ev_loop_depth. |
|
|
146 | - calling ev_unloop in fork/prepare watchers will no longer poll |
|
|
147 | for new events. |
| 6 | - Denis F. Latypoff corrected many typos in example code snippets. |
148 | - Denis F. Latypoff corrected many typos in example code snippets. |
| 7 | - honor autoconf detection of EV_USE_CLOCK_SYSCALL, also double- |
149 | - honor autoconf detection of EV_USE_CLOCK_SYSCALL, also double- |
| 8 | check that the syscall number is available before trying to |
150 | check that the syscall number is available before trying to |
| 9 | use it (reported by ry@tinyclouds). |
151 | use it (reported by ry@tinyclouds). |
| 10 | - use GetSysTimeAsFileTime instead of _timeb on windows, for |
152 | - use GetSystemTimeAsFileTime instead of _timeb on windows, for |
| 11 | slightly higher accuracy. |
153 | slightly higher accuracy. |
|
|
154 | - properly declare ev_loop_verify and ev_now_update even when |
|
|
155 | !EV_MULTIPLICITY. |
|
|
156 | - do not compile in any priority code when EV_MAXPRI == EV_MINPRI. |
|
|
157 | - support EV_MINIMAL==2 for a reduced API. |
|
|
158 | - actually 0-initialise struct sigaction when installing signals. |
|
|
159 | - add section on hibernate and stopped processes to ev_timer docs. |
| 12 | |
160 | |
| 13 | 3.6 Tue Apr 28 02:49:30 CEST 2009 |
161 | 3.6 Tue Apr 28 02:49:30 CEST 2009 |
| 14 | - multiple timers becoming ready within an event loop iteration |
162 | - multiple timers becoming ready within an event loop iteration |
| 15 | will be invoked in the "correct" order now. |
163 | will be invoked in the "correct" order now. |
| 16 | - do not leave the event loop early just because we have no active |
164 | - do not leave the event loop early just because we have no active |
| … | |
… | |
| 107 | do similar changes for event.c. |
255 | do similar changes for event.c. |
| 108 | |
256 | |
| 109 | 3.45 Tue Oct 21 21:59:26 CEST 2008 |
257 | 3.45 Tue Oct 21 21:59:26 CEST 2008 |
| 110 | - disable inotify usage on linux <2.6.25, as it is broken |
258 | - disable inotify usage on linux <2.6.25, as it is broken |
| 111 | (reported by Yoann Vandoorselaere). |
259 | (reported by Yoann Vandoorselaere). |
| 112 | - ev_stat errornously would try to add inotify watchers |
260 | - ev_stat erroneously would try to add inotify watchers |
| 113 | even when inotify wasn't available (this should only |
261 | even when inotify wasn't available (this should only |
| 114 | have a performance impact). |
262 | have a performance impact). |
| 115 | - ev_once now passes both timeout and io to the callback if both |
263 | - ev_once now passes both timeout and io to the callback if both |
| 116 | occur concurrently, instead of giving timeouts precedence. |
264 | occur concurrently, instead of giving timeouts precedence. |
| 117 | - disable EV_USE_INOTIFY when sys/inotify.h is too old. |
265 | - disable EV_USE_INOTIFY when sys/inotify.h is too old. |
| … | |
… | |
| 185 | - enable inlining with gcc versions 2 and 3. |
333 | - enable inlining with gcc versions 2 and 3. |
| 186 | - work around broken poll implementations potentially |
334 | - work around broken poll implementations potentially |
| 187 | not clearing revents field in ev_poll (Brandon Black) |
335 | not clearing revents field in ev_poll (Brandon Black) |
| 188 | (no such systems are known at this time). |
336 | (no such systems are known at this time). |
| 189 | - work around a bug in realloc on openbsd and darwin, |
337 | - work around a bug in realloc on openbsd and darwin, |
| 190 | also makes the errornous valgrind complaints |
338 | also makes the erroneous valgrind complaints |
| 191 | go away (noted by various people). |
339 | go away (noted by various people). |
| 192 | - fix ev_async_pending, add c++ wrapper for ev_async |
340 | - fix ev_async_pending, add c++ wrapper for ev_async |
| 193 | (based on patch sent by Johannes Deisenhofer. |
341 | (based on patch sent by Johannes Deisenhofer). |
| 194 | - add sensible set method to ev::embed. |
342 | - add sensible set method to ev::embed. |
| 195 | - made integer constants type int in ev.h. |
343 | - made integer constants type int in ev.h. |
| 196 | |
344 | |
| 197 | 3.2 Wed Apr 2 17:11:19 CEST 2008 |
345 | 3.2 Wed Apr 2 17:11:19 CEST 2008 |
| 198 | - fix a 64 bit overflow issue in the select backend, |
346 | - fix a 64 bit overflow issue in the select backend, |
