| 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 | 3.33 |
3 | 3.9 Thu Dec 31 07:59:59 CET 2009 |
|
|
4 | - signalfd is no longer used by default and has to be requested |
|
|
5 | explicitly - this means that easy to catch bugs become hard to |
|
|
6 | catch race conditions, but the users have spoken. |
|
|
7 | - point out the unspecified signal mask in the documentation, and |
|
|
8 | that this is a race condition regardless of EV_SIGNALFD. |
|
|
9 | - backport inotify code to C89. |
|
|
10 | - inotify file descriptors could leak into child processes. |
|
|
11 | - ev_stat watchers could keep an errornous extra ref on the loop, |
|
|
12 | preventing exit when unregistering all watchers (testcases |
|
|
13 | provided by ry@tinyclouds.org). |
|
|
14 | - implement EV_WIN32_HANDLE_TO_FD and EV_WIN32_CLOSE_FD configuration |
|
|
15 | symbols to make it easier for apps to do their own fd management. |
|
|
16 | - support EV_IDLE_ENABLE being disabled in ev++.h |
|
|
17 | (patch by Didier Spezia). |
|
|
18 | - take advantage of inotify_init1, if available, to set cloexec/nonblock |
|
|
19 | on fd creation, to avoid races. |
|
|
20 | - the signal handling pipe wasn't always initialised under windows |
|
|
21 | (analysed by lekma). |
|
|
22 | - changed minimum glibc requirement from glibc 2.9 to 2.7, for |
|
|
23 | signalfd. |
|
|
24 | - add missing string.h include (Denis F. Latypoff). |
|
|
25 | - only replace ev_stat.prev when we detect an actual difference, |
|
|
26 | so prev is (almost) always different to attr. this might |
|
|
27 | have caused the probems with 04_stat.t. |
|
|
28 | - add ev::timer->remaining () method to C++ API. |
|
|
29 | |
|
|
30 | 3.8 Sun Aug 9 14:30:45 CEST 2009 |
|
|
31 | - incompatible change: do not necessarily reset signal handler |
|
|
32 | to SIG_DFL when a sighandler is stopped. |
|
|
33 | - ev_default_destroy did not properly free or zero some members, |
|
|
34 | potentially causing crashes and memory corruption on repated |
|
|
35 | ev_default_destroy/ev_default_loop calls. |
|
|
36 | - take advantage of signalfd on GNU/Linux systems. |
|
|
37 | - document that the signal mask might be in an unspecified |
|
|
38 | state when using libev's signal handling. |
|
|
39 | - take advantage of some GNU/Linux calls to set cloexec/nonblock |
|
|
40 | on fd creation, to avoid race conditions. |
|
|
41 | |
|
|
42 | 3.7 Fri Jul 17 16:36:32 CEST 2009 |
|
|
43 | - ev_unloop and ev_loop wrongly used a global variable to exit loops, |
|
|
44 | instead of using a per-loop variable (bug caught by accident...). |
|
|
45 | - the ev_set_io_collect_interval interpretation has changed. |
|
|
46 | - add new functionality: ev_set_userdata, ev_userdata, |
|
|
47 | ev_set_invoke_pending_cb, ev_set_loop_release_cb, |
|
|
48 | ev_invoke_pending, ev_pending_count, together with a long example |
|
|
49 | about thread locking. |
|
|
50 | - add ev_timer_remaining (as requested by Denis F. Latypoff). |
|
|
51 | - add ev_loop_depth. |
|
|
52 | - calling ev_unloop in fork/prepare watchers will no longer poll |
|
|
53 | for new events. |
|
|
54 | - Denis F. Latypoff corrected many typos in example code snippets. |
|
|
55 | - honor autoconf detection of EV_USE_CLOCK_SYSCALL, also double- |
|
|
56 | check that the syscall number is available before trying to |
|
|
57 | use it (reported by ry@tinyclouds). |
|
|
58 | - use GetSystemTimeAsFileTime instead of _timeb on windows, for |
|
|
59 | slightly higher accuracy. |
|
|
60 | - properly declare ev_loop_verify and ev_now_update even when |
|
|
61 | !EV_MULTIPLICITY. |
|
|
62 | - do not compile in any priority code when EV_MAXPRI == EV_MINPRI. |
|
|
63 | - support EV_MINIMAL==2 for a reduced API. |
|
|
64 | - actually 0-initialise struct sigaction when installing signals. |
|
|
65 | - add section on hibernate and stopped processes to ev_timer docs. |
|
|
66 | |
|
|
67 | 3.6 Tue Apr 28 02:49:30 CEST 2009 |
|
|
68 | - multiple timers becoming ready within an event loop iteration |
|
|
69 | will be invoked in the "correct" order now. |
|
|
70 | - do not leave the event loop early just because we have no active |
|
|
71 | watchers, fixing a problem when embedding a kqueue loop |
|
|
72 | that has active kernel events but no registered watchers |
|
|
73 | (reported by blacksand blacksand). |
|
|
74 | - correctly zero the idx values for arrays, so destroying and |
|
|
75 | reinitialising the default loop actually works (patch by |
|
|
76 | Malek Hadj-Ali). |
|
|
77 | - implement ev_suspend and ev_resume. |
|
|
78 | - new EV_CUSTOM revents flag for use by applications. |
|
|
79 | - add documentation section about priorites. |
|
|
80 | - add a glossary to the dcoumentation. |
|
|
81 | - extend the ev_fork description slightly. |
|
|
82 | - optimize a jump out of call_pending. |
|
|
83 | |
|
|
84 | 3.53 Sun Feb 15 02:38:20 CET 2009 |
|
|
85 | - fix a bug in event pipe creation on win32 that would cause a |
|
|
86 | failed assertion on event loop creation (patch by Malek Hadj-Ali). |
|
|
87 | - probe for CLOCK_REALTIME support at runtime as well and fall |
|
|
88 | back to gettimeofday if there is an error, to support older |
|
|
89 | operating systems with newer header files/libraries. |
|
|
90 | - prefer gettimeofday over clock_gettime with USE_CLOCK_SYSCALL |
|
|
91 | (default most everywhere), otherwise not. |
|
|
92 | |
|
|
93 | 3.52 Wed Jan 7 21:43:02 CET 2009 |
|
|
94 | - fix compilation of select backend in fd_set mode when NFDBITS is |
|
|
95 | missing (to get it to compile on QNX, reported by Rodrigo Campos). |
|
|
96 | - better select-nfds handling when select backend is in fd_set mode. |
|
|
97 | - diagnose fd_set overruns when select backend is in fd_set mode. |
|
|
98 | - due to a thinko, instead of disabling everything but |
|
|
99 | select on the borked OS X platform, everything but select was |
|
|
100 | allowed (reported by Emanuele Giaquinta). |
|
|
101 | - actually verify that local and remote port are matching in |
|
|
102 | libev's socketpair emulation, which makes denial-of-service |
|
|
103 | attacks harder (but not impossible - it's windows). Make sure |
|
|
104 | it even works under vista, which thinks that getpeer/sockname |
|
|
105 | should return fantasy port numbers. |
|
|
106 | - include "libev" in all assertion messages for potentially |
|
|
107 | clearer diagnostics. |
|
|
108 | - event_get_version (libevent compatibility) returned |
|
|
109 | a useless string instead of the expected version string |
|
|
110 | (patch by W.C.A. Wijngaards). |
|
|
111 | |
|
|
112 | 3.51 Wed Dec 24 23:00:11 CET 2008 |
|
|
113 | - fix a bug where an inotify watcher was added twice, causing |
|
|
114 | freezes on hash collisions (reported and analysed by Graham Leggett). |
|
|
115 | - new config symbol, EV_USE_CLOCK_SYSCALL, to make libev use |
|
|
116 | a direct syscall - slower, but no dependency on librt et al. |
|
|
117 | - assume negative return values != -1 signals success of port_getn |
|
|
118 | (http://cvs.epicsol.org/cgi/viewcvs.cgi/epic5/source/newio.c?rev=1.52) |
|
|
119 | (no known failure reports, but it doesn't hurt). |
|
|
120 | - fork detection in ev_embed now stops and restarts the watcher |
|
|
121 | automatically. |
|
|
122 | - EXPERIMENTAL: default the method to operator () in ev++.h, |
|
|
123 | to make it nicer to use functors (requested by Benedek László). |
|
|
124 | - fixed const object callbacks in ev++.h. |
|
|
125 | - replaced loop_ref argument of watcher.set (loop) by a direct |
|
|
126 | ev_loop * in ev++.h, to avoid clashes with functor patch. |
|
|
127 | - do not try to watch the empty string via inotify. |
|
|
128 | - inotify watchers could be leaked under certain circumstances. |
|
|
129 | - OS X 10.5 is actually even more broken than earlier versions, |
|
|
130 | so fall back to select on that piece of garbage. |
|
|
131 | - fixed some weirdness in the ev_embed documentation. |
|
|
132 | |
|
|
133 | 3.49 Wed Nov 19 11:26:53 CET 2008 |
|
|
134 | - ev_stat watchers will now use inotify as a mere hint on |
|
|
135 | kernels <2.6.25, or if the filesystem is not in the |
|
|
136 | "known to be good" list. |
|
|
137 | - better mingw32 compatibility (it's not as borked as native win32) |
|
|
138 | (analysed by Roger Pack). |
|
|
139 | - include stdio.h in the example program, as too many people are |
|
|
140 | confused by the weird C language otherwise. I guess the next thing |
|
|
141 | I get told is that the "..." ellipses in the examples don't compile |
|
|
142 | with their C compiler. |
|
|
143 | |
|
|
144 | 3.48 Thu Oct 30 09:02:37 CET 2008 |
|
|
145 | - further optimise away the EPOLL_CTL_ADD/MOD combo in the epoll |
|
|
146 | backend by assuming the kernel event mask hasn't changed if |
|
|
147 | ADD fails with EEXIST. |
|
|
148 | - work around spurious event notification bugs in epoll by using |
|
|
149 | a 32-bit generation counter. recreate kernel state if we receive |
|
|
150 | spurious notifications or unwanted events. this is very costly, |
|
|
151 | but I didn't come up with this horrible design. |
|
|
152 | - use memset to initialise most arrays now and do away with the |
|
|
153 | init functions. |
|
|
154 | - expand time-out strategies into a "Be smart about timeouts" section. |
|
|
155 | - drop the "struct" from all ev_watcher declarations in the |
|
|
156 | documentation and did other clarifications (yeah, it was a mistake |
|
|
157 | to have a struct AND a function called ev_loop). |
|
|
158 | - fix a bug where ev_default would not initialise the default |
|
|
159 | loop again after it was destroyed with ev_default_destroy. |
|
|
160 | - rename syserr to ev_syserr to avoid name clashes when embedding, |
|
|
161 | do similar changes for event.c. |
|
|
162 | |
|
|
163 | 3.45 Tue Oct 21 21:59:26 CEST 2008 |
|
|
164 | - disable inotify usage on linux <2.6.25, as it is broken |
|
|
165 | (reported by Yoann Vandoorselaere). |
|
|
166 | - ev_stat errornously would try to add inotify watchers |
|
|
167 | even when inotify wasn't available (this should only |
|
|
168 | have a performance impact). |
|
|
169 | - ev_once now passes both timeout and io to the callback if both |
|
|
170 | occur concurrently, instead of giving timeouts precedence. |
|
|
171 | - disable EV_USE_INOTIFY when sys/inotify.h is too old. |
|
|
172 | |
|
|
173 | 3.44 Mon Sep 29 05:18:39 CEST 2008 |
|
|
174 | - embed watchers now automatically invoke ev_loop_fork on the |
|
|
175 | embedded loop when the parent loop forks. |
|
|
176 | - new function: ev_now_update (loop). |
|
|
177 | - verify_watcher was not marked static. |
|
|
178 | - improve the "associating..." manpage section. |
|
|
179 | - documentation tweaks here and there. |
|
|
180 | |
|
|
181 | 3.43 Sun Jul 6 05:34:41 CEST 2008 |
|
|
182 | - include more include files on windows to get struct _stati64 |
|
|
183 | (reported by Chris Hulbert, but doesn't quite fix his issue). |
|
|
184 | - add missing #include <io.h> in ev.c on windows (reported by |
|
|
185 | Matt Tolton). |
|
|
186 | |
|
|
187 | 3.42 Tue Jun 17 12:12:07 CEST 2008 |
|
|
188 | - work around yet another windows bug: FD_SET actually adds fd's |
|
|
189 | multiple times to the fd_*SET*, despite official MSN docs claiming |
|
|
190 | otherwise. Reported and well-analysed by Matt Tolton. |
|
|
191 | - define NFDBITS to 0 when EV_SELECT_IS_WINSOCKET to make it compile |
|
|
192 | (reported any analysed by Chris Hulbert). |
|
|
193 | - fix a bug in ev_ebadf (this function is only used to catch |
|
|
194 | programming errors in the libev user). reported by Matt Tolton. |
|
|
195 | - fix a bug in fd_intern on win32 (could lead to compile errors |
|
|
196 | under some circumstances, but would work correctly if it compiles). |
|
|
197 | reported by Matt Tolton. |
|
|
198 | - (try to) work around missing lstat on windows. |
|
|
199 | - pass in the write fd set as except fd set under windows. windows |
|
|
200 | is so uncontrollably lame that it requires this. this means that |
|
|
201 | switching off oobinline is not supported (but tcp/ip doesn't |
|
|
202 | have oob, so that would be stupid anyways. |
|
|
203 | - use posix module symbol to auto-detect monotonic clock presence |
|
|
204 | and some other default values. |
|
|
205 | |
|
|
206 | 3.41 Fri May 23 18:42:54 CEST 2008 |
|
|
207 | - work around an obscure bug in winsocket select: if you |
|
|
208 | provide only empty fd sets then select returns WSAEINVAL. how sucky. |
|
|
209 | - improve timer scheduling stability and reduce use of time_epsilon. |
| 4 | - use 1-based 2-heap for EV_MINIMAL, simplifies code, reduces |
210 | - use 1-based 2-heap for EV_MINIMAL, simplifies code, reduces |
| 5 | codesize and makes for better cache-efficiency. |
211 | codesize and makes for better cache-efficiency. |
| 6 | - use 3-based 4-heap for !EV_MINIMAL. this makes better use |
212 | - use 3-based 4-heap for !EV_MINIMAL. this makes better use |
| 7 | of cpu cache lines and gives better growth behaviour than |
213 | of cpu cache lines and gives better growth behaviour than |
| 8 | 2-based heaps. |
214 | 2-based heaps. |
| … | |
… | |
| 12 | - fix a potential aliasing issue in ev_timer_again. |
218 | - fix a potential aliasing issue in ev_timer_again. |
| 13 | - add/document ev_periodic_at, retract direct access to ->at. |
219 | - add/document ev_periodic_at, retract direct access to ->at. |
| 14 | - improve ev_stat docs. |
220 | - improve ev_stat docs. |
| 15 | - add portability requirements section. |
221 | - add portability requirements section. |
| 16 | - fix manpage headers etc. |
222 | - fix manpage headers etc. |
|
|
223 | - normalise WSA error codes to lower range on windows. |
|
|
224 | - add consistency check code that can be called automatically |
|
|
225 | or on demand to check for internal structures (ev_loop_verify). |
| 17 | |
226 | |
| 18 | 3.31 Wed Apr 16 20:45:04 CEST 2008 |
227 | 3.31 Wed Apr 16 20:45:04 CEST 2008 |
| 19 | - added last minute fix for ev_poll.c by Brandon Black. |
228 | - added last minute fix for ev_poll.c by Brandon Black. |
| 20 | |
229 | |
| 21 | 3.3 Wed Apr 16 19:04:10 CEST 2008 |
230 | 3.3 Wed Apr 16 19:04:10 CEST 2008 |
