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Revision: 1.148
Committed: Wed Aug 26 17:50:11 2009 UTC (14 years, 8 months ago) by root
Branch: MAIN
Changes since 1.147: +1 -2 lines
Log Message:
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File Contents

# User Rev Content
1 root 1.14 Revision history for libev, a high-performance and full-featured event loop.
2 root 1.1
3 root 1.142 - backport inotify code to C89.
4 root 1.148 - inotify file descriptors could leak into child processes.
5 root 1.143 - implement EV_WIN32_HANDLE_TO_FD and EV_WIN32_CLOSE_FD configuration
6 root 1.145 symbols to make it easier for apps to do their own fd management.
7 root 1.144 - support EV_IDLE_ENABLE being disabled in ev++.h
8     (patch by Didier Spezia).
9 root 1.145 - point out the unspecified signal mask in the documentation.
10 root 1.147 - take advantage of inotify_init1, if available, to set cloexec/nonblock
11     on fd creation, to avoid races.
12 root 1.146 - changed minimum glibc requirement from glibc 2.9 to 2.7, for
13     signalfd.
14 root 1.142
15 root 1.141 3.8 Sun Aug 9 14:30:45 CEST 2009
16 root 1.133 - incompatible change: do not necessarily reset signal handler
17     to SIG_DFL when a sighandler is stopped.
18 root 1.135 - ev_default_destroy did not properly free or zero some members,
19 root 1.134 potentially causing crashes and memory corruption on repated
20     ev_default_destroy/ev_default_loop calls.
21 root 1.133 - take advantage of signalfd on GNU/Linux systems.
22     - document that the signal mask might be in an unspecified
23     state when using libev's signal handling.
24 root 1.136 - take advantage of some GNU/Linux calls to set cloexec/nonblock
25     on fd creation, to avoid race conditions.
26 root 1.132
27 root 1.131 3.7 Fri Jul 17 16:36:32 CEST 2009
28 root 1.128 - ev_unloop and ev_loop wrongly used a global variable to exit loops,
29     instead of using a per-loop variable (bug caught by accident...).
30     - the ev_set_io_collect_interval interpretation has changed.
31     - add new functionality: ev_set_userdata, ev_userdata,
32 root 1.126 ev_set_invoke_pending_cb, ev_set_loop_release_cb,
33 root 1.132 ev_invoke_pending, ev_pending_count, together with a long example
34     about thread locking.
35 root 1.128 - add ev_timer_remaining (as requested by Denis F. Latypoff).
36     - add ev_loop_depth.
37 root 1.124 - calling ev_unloop in fork/prepare watchers will no longer poll
38     for new events.
39 root 1.115 - Denis F. Latypoff corrected many typos in example code snippets.
40     - honor autoconf detection of EV_USE_CLOCK_SYSCALL, also double-
41     check that the syscall number is available before trying to
42     use it (reported by ry@tinyclouds).
43 root 1.117 - use GetSystemTimeAsFileTime instead of _timeb on windows, for
44 root 1.116 slightly higher accuracy.
45 root 1.122 - properly declare ev_loop_verify and ev_now_update even when
46     !EV_MULTIPLICITY.
47 root 1.121 - do not compile in any priority code when EV_MAXPRI == EV_MINPRI.
48 root 1.123 - support EV_MINIMAL==2 for a reduced API.
49 root 1.125 - actually 0-initialise struct sigaction when installing signals.
50 root 1.127 - add section on hibernate and stopped processes to ev_timer docs.
51 root 1.115
52 root 1.113 3.6 Tue Apr 28 02:49:30 CEST 2009
53 root 1.107 - multiple timers becoming ready within an event loop iteration
54     will be invoked in the "correct" order now.
55 root 1.105 - do not leave the event loop early just because we have no active
56     watchers, fixing a problem when embedding a kqueue loop
57     that has active kernel events but no registered watchers
58     (reported by blacksand blacksand).
59 root 1.102 - correctly zero the idx values for arrays, so destroying and
60     reinitialising the default loop actually works (patch by
61     Malek Hadj-Ali).
62 root 1.108 - implement ev_suspend and ev_resume.
63 root 1.106 - new EV_CUSTOM revents flag for use by applications.
64 root 1.109 - add documentation section about priorites.
65     - add a glossary to the dcoumentation.
66 root 1.111 - extend the ev_fork description slightly.
67 root 1.112 - optimize a jump out of call_pending.
68 root 1.102
69 root 1.101 3.53 Sun Feb 15 02:38:20 CET 2009
70     - fix a bug in event pipe creation on win32 that would cause a
71     failed assertion on event loop creation (patch by Malek Hadj-Ali).
72 root 1.100 - probe for CLOCK_REALTIME support at runtime as well and fall
73     back to gettimeofday if there is an error, to support older
74     operating systems with newer header files/libraries.
75     - prefer gettimeofday over clock_gettime with USE_CLOCK_SYSCALL
76     (default most everywhere), otherwise not.
77    
78 root 1.99 3.52 Wed Jan 7 21:43:02 CET 2009
79 root 1.97 - fix compilation of select backend in fd_set mode when NFDBITS is
80     missing (to get it to compile on QNX, reported by Rodrigo Campos).
81     - better select-nfds handling when select backend is in fd_set mode.
82     - diagnose fd_set overruns when select backend is in fd_set mode.
83     - due to a thinko, instead of disabling everything but
84     select on the borked OS X platform, everything but select was
85     allowed (reported by Emanuele Giaquinta).
86 root 1.95 - actually verify that local and remote port are matching in
87     libev's socketpair emulation, which makes denial-of-service
88     attacks harder (but not impossible - it's windows). Make sure
89 root 1.96 it even works under vista, which thinks that getpeer/sockname
90     should return fantasy port numbers.
91 root 1.100 - include "libev" in all assertion messages for potentially
92 root 1.97 clearer diagnostics.
93 root 1.98 - event_get_version (libevent compatibility) returned
94     a useless string instead of the expected version string
95     (patch by W.C.A. Wijngaards).
96 root 1.95
97 root 1.94 3.51 Wed Dec 24 23:00:11 CET 2008
98 root 1.91 - fix a bug where an inotify watcher was added twice, causing
99 root 1.92 freezes on hash collisions (reported and analysed by Graham Leggett).
100 root 1.87 - new config symbol, EV_USE_CLOCK_SYSCALL, to make libev use
101     a direct syscall - slower, but no dependency on librt et al.
102 root 1.88 - assume negative return values != -1 signals success of port_getn
103     (http://cvs.epicsol.org/cgi/viewcvs.cgi/epic5/source/newio.c?rev=1.52)
104     (no known failure reports, but it doesn't hurt).
105 root 1.93 - fork detection in ev_embed now stops and restarts the watcher
106     automatically.
107 root 1.89 - EXPERIMENTAL: default the method to operator () in ev++.h,
108     to make it nicer to use functors (requested by Benedek László).
109     - fixed const object callbacks in ev++.h.
110 root 1.90 - replaced loop_ref argument of watcher.set (loop) by a direct
111     ev_loop * in ev++.h, to avoid clashes with functor patch.
112 root 1.91 - do not try to watch the empty string via inotify.
113 root 1.92 - inotify watchers could be leaked under certain circumstances.
114     - OS X 10.5 is actually even more broken than earlier versions,
115     so fall back to select on that piece of garbage.
116 root 1.93 - fixed some weirdness in the ev_embed documentation.
117 root 1.87
118 root 1.86 3.49 Wed Nov 19 11:26:53 CET 2008
119 root 1.83 - ev_stat watchers will now use inotify as a mere hint on
120     kernels <2.6.25, or if the filesystem is not in the
121     "known to be good" list.
122 root 1.84 - better mingw32 compatibility (it's not as borked as native win32)
123     (analysed by Roger Pack).
124 root 1.85 - include stdio.h in the example program, as too many people are
125     confused by the weird C language otherwise. I guess the next thing
126     I get told is that the "..." ellipses in the examples don't compile
127     with their C compiler.
128 root 1.83
129 root 1.80 3.48 Thu Oct 30 09:02:37 CET 2008
130 root 1.71 - further optimise away the EPOLL_CTL_ADD/MOD combo in the epoll
131     backend by assuming the kernel event mask hasn't changed if
132     ADD fails with EEXIST.
133 root 1.75 - work around spurious event notification bugs in epoll by using
134 root 1.77 a 32-bit generation counter. recreate kernel state if we receive
135 root 1.78 spurious notifications or unwanted events. this is very costly,
136     but I didn't come up with this horrible design.
137 root 1.71 - use memset to initialise most arrays now and do away with the
138     init functions.
139 root 1.72 - expand time-out strategies into a "Be smart about timeouts" section.
140     - drop the "struct" from all ev_watcher declarations in the
141 root 1.73 documentation and did other clarifications (yeah, it was a mistake
142     to have a struct AND a function called ev_loop).
143 root 1.74 - fix a bug where ev_default would not initialise the default
144     loop again after it was destroyed with ev_default_destroy.
145 root 1.79 - rename syserr to ev_syserr to avoid name clashes when embedding,
146     do similar changes for event.c.
147 root 1.71
148 root 1.69 3.45 Tue Oct 21 21:59:26 CEST 2008
149 root 1.67 - disable inotify usage on linux <2.6.25, as it is broken
150     (reported by Yoann Vandoorselaere).
151     - ev_stat errornously would try to add inotify watchers
152 root 1.68 even when inotify wasn't available (this should only
153 root 1.67 have a performance impact).
154 root 1.65 - ev_once now passes both timeout and io to the callback if both
155     occur concurrently, instead of giving timeouts precedence.
156 root 1.66 - disable EV_USE_INOTIFY when sys/inotify.h is too old.
157 root 1.65
158 root 1.62 3.44 Mon Sep 29 05:18:39 CEST 2008
159     - embed watchers now automatically invoke ev_loop_fork on the
160     embedded loop when the parent loop forks.
161 root 1.58 - new function: ev_now_update (loop).
162 root 1.57 - verify_watcher was not marked static.
163 root 1.59 - improve the "associating..." manpage section.
164 root 1.60 - documentation tweaks here and there.
165 root 1.57
166 root 1.56 3.43 Sun Jul 6 05:34:41 CEST 2008
167 root 1.54 - include more include files on windows to get struct _stati64
168 root 1.56 (reported by Chris Hulbert, but doesn't quite fix his issue).
169 root 1.53 - add missing #include <io.h> in ev.c on windows (reported by
170     Matt Tolton).
171    
172 root 1.52 3.42 Tue Jun 17 12:12:07 CEST 2008
173 root 1.50 - work around yet another windows bug: FD_SET actually adds fd's
174     multiple times to the fd_*SET*, despite official MSN docs claiming
175 root 1.51 otherwise. Reported and well-analysed by Matt Tolton.
176     - define NFDBITS to 0 when EV_SELECT_IS_WINSOCKET to make it compile
177 root 1.48 (reported any analysed by Chris Hulbert).
178 root 1.49 - fix a bug in ev_ebadf (this function is only used to catch
179     programming errors in the libev user). reported by Matt Tolton.
180     - fix a bug in fd_intern on win32 (could lead to compile errors
181     under some circumstances, but would work correctly if it compiles).
182     reported by Matt Tolton.
183 root 1.50 - (try to) work around missing lstat on windows.
184 root 1.45 - pass in the write fd set as except fd set under windows. windows
185 root 1.46 is so uncontrollably lame that it requires this. this means that
186     switching off oobinline is not supported (but tcp/ip doesn't
187     have oob, so that would be stupid anyways.
188 root 1.47 - use posix module symbol to auto-detect monotonic clock presence
189     and some other default values.
190 root 1.45
191 root 1.44 3.41 Fri May 23 18:42:54 CEST 2008
192 root 1.46 - work around an obscure bug in winsocket select: if you
193 root 1.40 provide only empty fd sets then select returns WSAEINVAL. how sucky.
194 root 1.41 - improve timer scheduling stability and reduce use of time_epsilon.
195 root 1.36 - use 1-based 2-heap for EV_MINIMAL, simplifies code, reduces
196     codesize and makes for better cache-efficiency.
197     - use 3-based 4-heap for !EV_MINIMAL. this makes better use
198     of cpu cache lines and gives better growth behaviour than
199     2-based heaps.
200 root 1.38 - cache timestamp within heap for !EV_MINIMAL, to avoid random
201     memory accesses.
202     - document/add EV_USE_4HEAP and EV_HEAP_CACHE_AT.
203 root 1.33 - fix a potential aliasing issue in ev_timer_again.
204 root 1.35 - add/document ev_periodic_at, retract direct access to ->at.
205     - improve ev_stat docs.
206     - add portability requirements section.
207 root 1.39 - fix manpage headers etc.
208 root 1.40 - normalise WSA error codes to lower range on windows.
209 root 1.43 - add consistency check code that can be called automatically
210     or on demand to check for internal structures (ev_loop_verify).
211 root 1.31
212 root 1.30 3.31 Wed Apr 16 20:45:04 CEST 2008
213     - added last minute fix for ev_poll.c by Brandon Black.
214 root 1.29
215 root 1.28 3.3 Wed Apr 16 19:04:10 CEST 2008
216 root 1.23 - event_base_loopexit should return 0 on success
217     (W.C.A. Wijngaards).
218 root 1.20 - added linux eventfd support.
219     - try to autodetect epoll and inotify support
220     by libc header version if not using autoconf.
221 root 1.21 - new symbols: EV_DEFAULT_UC and EV_DEFAULT_UC_.
222     - declare functions defined in ev.h as inline if
223     C99 or gcc are available.
224     - enable inlining with gcc versions 2 and 3.
225 root 1.25 - work around broken poll implementations potentially
226     not clearing revents field in ev_poll (Brandon Black)
227     (no such systems are known at this time).
228 root 1.23 - work around a bug in realloc on openbsd and darwin,
229     also makes the errornous valgrind complaints
230     go away (noted by various people).
231 root 1.26 - fix ev_async_pending, add c++ wrapper for ev_async
232     (based on patch sent by Johannes Deisenhofer.
233     - add sensible set method to ev::embed.
234 root 1.27 - made integer constants type int in ev.h.
235 root 1.20
236 root 1.19 3.2 Wed Apr 2 17:11:19 CEST 2008
237 root 1.15 - fix a 64 bit overflow issue in the select backend,
238     by using fd_mask instead of int for the mask.
239 root 1.16 - rename internal sighandler to avoid clash with very old perls.
240 root 1.18 - entering ev_loop will not clear the ONESHOT or NONBLOCKING
241     flags of any outer loops anymore.
242 root 1.17 - add ev_async_pending.
243 root 1.15
244 root 1.14 3.1 Thu Mar 13 13:45:22 CET 2008
245 root 1.12 - implement ev_async watchers.
246 root 1.10 - only initialise signal pipe on demand.
247     - make use of sig_atomic_t configurable.
248 root 1.14 - improved documentation.
249 root 1.10
250 root 1.9 3.0 Mon Jan 28 13:14:47 CET 2008
251 root 1.6 - API/ABI bump to version 3.0.
252 root 1.4 - ev++.h includes "ev.h" by default now, not <ev.h>.
253     - slightly improved documentation.
254 root 1.5 - speed up signal detection after a fork.
255 root 1.6 - only optionally return trace status changed in ev_child
256     watchers.
257 root 1.8 - experimental (and undocumented) loop wrappers for ev++.h.
258 root 1.4
259 root 1.2 2.01 Tue Dec 25 08:04:41 CET 2007
260 root 1.3 - separate Changes file.
261 root 1.2 - fix ev_path_set => ev_stat_set typo.
262     - remove event_compat.h from the libev tarball.
263     - change how include files are found.
264     - doc updates.
265     - update licenses, explicitly allow for GPL relicensing.
266    
267     2.0 Sat Dec 22 17:47:03 CET 2007
268     - new ev_sleep, ev_set_(io|timeout)_collect_interval.
269     - removed epoll from embeddable fd set.
270     - fix embed watchers.
271     - renamed ev_embed.loop to other.
272     - added exported Symbol tables.
273     - undefine member wrapper macros at the end of ev.c.
274     - respect EV_H in ev++.h.
275    
276     1.86 Tue Dec 18 02:36:57 CET 2007
277     - fix memleak on loop destroy (not relevant for perl).
278    
279     1.85 Fri Dec 14 20:32:40 CET 2007
280     - fix some aliasing issues w.r.t. timers and periodics
281     (not relevant for perl).
282    
283     (for historic versions refer to EV/Changes, found in the Perl interface)
284    
285 root 1.1 0.1 Wed Oct 31 21:31:48 CET 2007
286     - original version; hacked together in <24h.
287