| 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: ABI??? API????? Changes??? |
3 | TODO: ev_loop_wakeup |
| 4 | TODO: include ev_xyz_start in each example? |
4 | |
| 5 | TODO: section watcher states/lifetime |
5 | TODO: EV_NO_THREADS/NO_SMP and/or EV_USE_PTHREADS or so. also document. |
| 6 | TODO: ALL ev_xxx_set funtions must be called from ev++ set methods, somehow. |
6 | TODO: #define EV_API_DECL static? ev_default_loop_ptr? |
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7 | 4.10 |
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8 | - fix a race where the workaround against the epoll fork bugs |
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9 | caused signals to not be handled anymore. |
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10 | - correct backend_fudge for most backends, and implement a windows |
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11 | specific workaround to avoid looping because we call both |
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12 | select and Sleep, both with different time resolutions. |
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13 | - document range and guarantees of ev_sleep. |
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14 | - document reasonable ranges for periodics interval and offset. |
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15 | - rename backend_fudge to backend_mintime to avoid future confusion :) |
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16 | - change the default periodic reschedule function to hopefully be more |
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17 | exact and correct even in corner cases or in the far future. |
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18 | - do not rely on -lm anymore: use it when available but use our |
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19 | own floor () if it is missing. This should make it easier to embed, |
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20 | as no external libraries are required. |
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21 | - strategically import macros from libecb and mark rarely-used functions |
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22 | as cache-cold (saving almost 2k code size on typical amd64 setups). |
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23 | - add Symbols.ev and Symbols.event files, that were missing. |
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24 | |
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25 | 4.04 Wed Feb 16 09:01:51 CET 2011 |
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26 | - fix two problems in the native win32 backend, where reuse of fd's |
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27 | with different underlying handles caused handles not to be removed |
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28 | or added to the select set (analyzed and tested by Bert Belder). |
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29 | - do no rely on ceil() in ev_e?poll.c. |
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30 | - backport libev to HP-UX versions before 11 v3. |
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31 | - configure did not detect nanosleep and clock_gettime properly when |
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32 | they are available in the libc (as opposed to -lrt). |
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33 | |
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34 | 4.03 Tue Jan 11 14:37:25 CET 2011 |
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35 | - officially support polling files with all backends. |
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36 | - support files, /dev/zero etc. the same way as select in the epoll |
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37 | backend, by generating events on our own. |
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38 | - ports backend: work around solaris bug 6874410 and many related ones |
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39 | (EINTR, maybe more), with no performance loss (note that the solaris |
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40 | bug report is actually wrong, reality is far more bizarre and broken |
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41 | than that). |
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42 | - define EV_READ/EV_WRITE as macros in event.h, as some programs use |
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43 | #ifdef to test for them. |
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44 | - new (experimental) function: ev_feed_signal. |
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45 | - new (to become default) EVFLAG_NOSIGMASK flag. |
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46 | - new EVBACKEND_MASK symbol. |
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47 | - updated COMMON IDIOMS SECTION. |
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48 | |
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49 | 4.01 Fri Nov 5 21:51:29 CET 2010 |
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50 | - automake fucked it up, apparently, --add-missing -f is not quite enough |
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51 | to make it update its files, so 4.00 didn't install ev++.h and |
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52 | event.h on make install. grrr. |
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53 | - ev_loop(count|depth) didn't return anything (Robin Haberkorn). |
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54 | - change EV_UNDEF to 0xffffffff to silence some overzealous compilers. |
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55 | - use "(libev) " prefix for all libev error messages now. |
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56 | |
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57 | 4.00 Mon Oct 25 12:32:12 CEST 2010 |
| 7 | - "PORTING FROM LIBEV 3.X TO 4.X" (in ev.pod) is recommended reading. |
58 | - "PORTING FROM LIBEV 3.X TO 4.X" (in ev.pod) is recommended reading. |
| 8 | - ev_embed_stop did not correctly stop the watcher (very good |
59 | - ev_embed_stop did not correctly stop the watcher (very good |
| 9 | testcase by Vladimir Timofeev). |
60 | testcase by Vladimir Timofeev). |
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61 | - ev_run will now always update the current loop time - it erroneously |
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62 | didn't when idle watchers were active, causing timers not to fire. |
| 10 | - fix a bug where a timeout of zero caused the timer not to fire |
63 | - fix a bug where a timeout of zero caused the timer not to fire |
| 11 | in the libevent emulation (testcase by Péter Szabó). |
64 | in the libevent emulation (testcase by Péter Szabó). |
| 12 | - applied win32 fixes by Michael Lenaghan (also James Mansion). |
65 | - applied win32 fixes by Michael Lenaghan (also James Mansion). |
| 13 | - replace EV_MINIMAL by EV_FEATURES. |
66 | - replace EV_MINIMAL by EV_FEATURES. |
| 14 | - prefer EPOLL_CTL_ADD over EPOLL_CTL_MOD in some more cases, as it |
67 | - prefer EPOLL_CTL_ADD over EPOLL_CTL_MOD in some more cases, as it |
| 15 | seems the former is *much* faster than the latter. |
68 | seems the former is *much* faster than the latter. |
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69 | - linux kernel version detection (for inotify bug workarounds) |
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70 | did not work properly. |
| 16 | - reduce the number of spurious wake-ups with the ports backend. |
71 | - reduce the number of spurious wake-ups with the ports backend. |
| 17 | - remove dependency on sys/queue.h on freebsd (patch by Vanilla Hsu). |
72 | - remove dependency on sys/queue.h on freebsd (patch by Vanilla Hsu). |
| 18 | - do async init within ev_async_start, not ev_async_set, which avoids |
73 | - do async init within ev_async_start, not ev_async_set, which avoids |
| 19 | an API quirk where the set function must be called in the C++ API |
74 | an API quirk where the set function must be called in the C++ API |
| 20 | even when there is nothing to set. |
75 | even when there is nothing to set. |
| 21 | - add (undocumented) EV_ENABLE when adding events with kqueue, |
76 | - add (undocumented) EV_ENABLE when adding events with kqueue, |
| 22 | this might help with OS X, which seems to need it despite documenting |
77 | this might help with OS X, which seems to need it despite documenting |
| 23 | not to need it (helpfully pointed out by Tilghman Lesher). |
78 | not to need it (helpfully pointed out by Tilghman Lesher). |
| 24 | - do not use poll by default on freebsd, it's broken (what isn't |
79 | - do not use poll by default on freebsd, it's broken (what isn't |
| 25 | on freebsd...). |
80 | on freebsd...). |
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81 | - allow to embed epoll on kernels >= 2.6.32. |
| 26 | - configure now prepends -O3, not appends it, so one can still |
82 | - configure now prepends -O3, not appends it, so one can still |
| 27 | override it. |
83 | override it. |
| 28 | - greatly expanded the portability section. |
84 | - ev.pod: greatly expanded the portability section, added a porting |
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85 | section, a description of watcher states and made lots of minor fixes. |
| 29 | - disable poll backend on AIX, the poll header spams the namespace |
86 | - disable poll backend on AIX, the poll header spams the namespace |
| 30 | and it's not worth working around dead platforms (reported |
87 | and it's not worth working around dead platforms (reported |
| 31 | and analyzed by Aivars Kalvans). |
88 | and analyzed by Aivars Kalvans). |
| 32 | - improve header file compatibility of the standalone eventfd code |
89 | - improve header file compatibility of the standalone eventfd code |
| 33 | in an obscure case. |
90 | in an obscure case. |
| … | |
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| 36 | no sscanf dependency). |
93 | no sscanf dependency). |
| 37 | - new EV_CHILD_ENABLE and EV_SIGNAL_ENABLE configurable settings. |
94 | - new EV_CHILD_ENABLE and EV_SIGNAL_ENABLE configurable settings. |
| 38 | - update libev.m4 HAVE_CLOCK_SYSCALL test for newer glibcs. |
95 | - update libev.m4 HAVE_CLOCK_SYSCALL test for newer glibcs. |
| 39 | - add section on accept() problems to the manpage. |
96 | - add section on accept() problems to the manpage. |
| 40 | - rename EV_TIMEOUT to EV_TIMER. |
97 | - rename EV_TIMEOUT to EV_TIMER. |
| 41 | - rename ev_loop_count/depth/verify. |
98 | - rename ev_loop_count/depth/verify/loop/unloop. |
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99 | - remove ev_default_destroy and ev_default_fork. |
| 42 | - switch to two-digit minor version. |
100 | - switch to two-digit minor version. |
| 43 | - work around an apparent gentoo compiler bug. |
101 | - work around an apparent gentoo compiler bug. |
| 44 | - define _DARWIN_UNLIMITED_SELECT. just so. |
102 | - define _DARWIN_UNLIMITED_SELECT. just so. |
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103 | - use enum instead of #define for most constants. |
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104 | - improve compatibility to older C++ compilers. |
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105 | - (experimental) ev_run/ev_default_loop/ev_break/ev_loop_new have now |
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106 | default arguments when compiled as C++. |
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107 | - enable automake dependency tracking. |
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108 | - ev_loop_new no longer leaks memory when loop creation failed. |
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109 | - new ev_cleanup watcher type. |
| 45 | |
110 | |
| 46 | 3.9 Thu Dec 31 07:59:59 CET 2009 |
111 | 3.9 Thu Dec 31 07:59:59 CET 2009 |
| 47 | - signalfd is no longer used by default and has to be requested |
112 | - signalfd is no longer used by default and has to be requested |
| 48 | explicitly - this means that easy to catch bugs become hard to |
113 | explicitly - this means that easy to catch bugs become hard to |
| 49 | catch race conditions, but the users have spoken. |
114 | catch race conditions, but the users have spoken. |
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… | |
| 65 | - changed minimum glibc requirement from glibc 2.9 to 2.7, for |
130 | - changed minimum glibc requirement from glibc 2.9 to 2.7, for |
| 66 | signalfd. |
131 | signalfd. |
| 67 | - add missing string.h include (Denis F. Latypoff). |
132 | - add missing string.h include (Denis F. Latypoff). |
| 68 | - only replace ev_stat.prev when we detect an actual difference, |
133 | - only replace ev_stat.prev when we detect an actual difference, |
| 69 | so prev is (almost) always different to attr. this might |
134 | so prev is (almost) always different to attr. this might |
| 70 | have caused the probems with 04_stat.t. |
135 | have caused the problems with 04_stat.t. |
| 71 | - add ev::timer->remaining () method to C++ API. |
136 | - add ev::timer->remaining () method to C++ API. |
| 72 | |
137 | |
| 73 | 3.8 Sun Aug 9 14:30:45 CEST 2009 |
138 | 3.8 Sun Aug 9 14:30:45 CEST 2009 |
| 74 | - incompatible change: do not necessarily reset signal handler |
139 | - incompatible change: do not necessarily reset signal handler |
| 75 | to SIG_DFL when a sighandler is stopped. |
140 | to SIG_DFL when a sighandler is stopped. |
| 76 | - ev_default_destroy did not properly free or zero some members, |
141 | - ev_default_destroy did not properly free or zero some members, |
| 77 | potentially causing crashes and memory corruption on repated |
142 | potentially causing crashes and memory corruption on repeated |
| 78 | ev_default_destroy/ev_default_loop calls. |
143 | ev_default_destroy/ev_default_loop calls. |
| 79 | - take advantage of signalfd on GNU/Linux systems. |
144 | - take advantage of signalfd on GNU/Linux systems. |
| 80 | - document that the signal mask might be in an unspecified |
145 | - document that the signal mask might be in an unspecified |
| 81 | state when using libev's signal handling. |
146 | state when using libev's signal handling. |
| 82 | - take advantage of some GNU/Linux calls to set cloexec/nonblock |
147 | - take advantage of some GNU/Linux calls to set cloexec/nonblock |
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… | |
| 204 | do similar changes for event.c. |
269 | do similar changes for event.c. |
| 205 | |
270 | |
| 206 | 3.45 Tue Oct 21 21:59:26 CEST 2008 |
271 | 3.45 Tue Oct 21 21:59:26 CEST 2008 |
| 207 | - disable inotify usage on linux <2.6.25, as it is broken |
272 | - disable inotify usage on linux <2.6.25, as it is broken |
| 208 | (reported by Yoann Vandoorselaere). |
273 | (reported by Yoann Vandoorselaere). |
| 209 | - ev_stat errornously would try to add inotify watchers |
274 | - ev_stat erroneously would try to add inotify watchers |
| 210 | even when inotify wasn't available (this should only |
275 | even when inotify wasn't available (this should only |
| 211 | have a performance impact). |
276 | have a performance impact). |
| 212 | - ev_once now passes both timeout and io to the callback if both |
277 | - ev_once now passes both timeout and io to the callback if both |
| 213 | occur concurrently, instead of giving timeouts precedence. |
278 | occur concurrently, instead of giving timeouts precedence. |
| 214 | - disable EV_USE_INOTIFY when sys/inotify.h is too old. |
279 | - disable EV_USE_INOTIFY when sys/inotify.h is too old. |
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| 282 | - enable inlining with gcc versions 2 and 3. |
347 | - enable inlining with gcc versions 2 and 3. |
| 283 | - work around broken poll implementations potentially |
348 | - work around broken poll implementations potentially |
| 284 | not clearing revents field in ev_poll (Brandon Black) |
349 | not clearing revents field in ev_poll (Brandon Black) |
| 285 | (no such systems are known at this time). |
350 | (no such systems are known at this time). |
| 286 | - work around a bug in realloc on openbsd and darwin, |
351 | - work around a bug in realloc on openbsd and darwin, |
| 287 | also makes the errornous valgrind complaints |
352 | also makes the erroneous valgrind complaints |
| 288 | go away (noted by various people). |
353 | go away (noted by various people). |
| 289 | - fix ev_async_pending, add c++ wrapper for ev_async |
354 | - fix ev_async_pending, add c++ wrapper for ev_async |
| 290 | (based on patch sent by Johannes Deisenhofer. |
355 | (based on patch sent by Johannes Deisenhofer). |
| 291 | - add sensible set method to ev::embed. |
356 | - add sensible set method to ev::embed. |
| 292 | - made integer constants type int in ev.h. |
357 | - made integer constants type int in ev.h. |
| 293 | |
358 | |
| 294 | 3.2 Wed Apr 2 17:11:19 CEST 2008 |
359 | 3.2 Wed Apr 2 17:11:19 CEST 2008 |
| 295 | - fix a 64 bit overflow issue in the select backend, |
360 | - fix a 64 bit overflow issue in the select backend, |
