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Revision: 1.160
Committed: Sun Jan 24 12:31:55 2010 UTC (14 years, 3 months ago) by root
Branch: MAIN
Changes since 1.159: +3 -0 lines
Log Message:
disable poll on aix

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 1.157 - applied win32 fixes by Michael Lenaghan.
4 root 1.158 - remove dependency on sys/queue.h on freebsd (patch by Vanilla Hsu).
5 root 1.159 - configure now prepends -O3, not appends it, so one can still
6     override it.
7 root 1.160 - disable poll backend on AIX, the poll header spams the namespace
8     and it's not worth working around dead platforms (reported
9     and analyzed by Aivars Kalvans).
10 root 1.157
11 root 1.156 3.9 Thu Dec 31 07:59:59 CET 2009
12 root 1.155 - signalfd is no longer used by default and has to be requested
13     explicitly - this means that easy to catch bugs become hard to
14     catch race conditions, but the users have spoken.
15     - point out the unspecified signal mask in the documentation, and
16     that this is a race condition regardless of EV_SIGNALFD.
17 root 1.142 - backport inotify code to C89.
18 root 1.148 - inotify file descriptors could leak into child processes.
19 root 1.151 - ev_stat watchers could keep an errornous extra ref on the loop,
20     preventing exit when unregistering all watchers (testcases
21 root 1.150 provided by ry@tinyclouds.org).
22 root 1.143 - implement EV_WIN32_HANDLE_TO_FD and EV_WIN32_CLOSE_FD configuration
23 root 1.145 symbols to make it easier for apps to do their own fd management.
24 root 1.144 - support EV_IDLE_ENABLE being disabled in ev++.h
25     (patch by Didier Spezia).
26 root 1.147 - take advantage of inotify_init1, if available, to set cloexec/nonblock
27     on fd creation, to avoid races.
28 root 1.150 - the signal handling pipe wasn't always initialised under windows
29     (analysed by lekma).
30 root 1.146 - changed minimum glibc requirement from glibc 2.9 to 2.7, for
31     signalfd.
32 root 1.152 - add missing string.h include (Denis F. Latypoff).
33 root 1.153 - only replace ev_stat.prev when we detect an actual difference,
34     so prev is (almost) always different to attr. this might
35     have caused the probems with 04_stat.t.
36 root 1.154 - add ev::timer->remaining () method to C++ API.
37 root 1.142
38 root 1.141 3.8 Sun Aug 9 14:30:45 CEST 2009
39 root 1.133 - incompatible change: do not necessarily reset signal handler
40     to SIG_DFL when a sighandler is stopped.
41 root 1.135 - ev_default_destroy did not properly free or zero some members,
42 root 1.134 potentially causing crashes and memory corruption on repated
43     ev_default_destroy/ev_default_loop calls.
44 root 1.133 - take advantage of signalfd on GNU/Linux systems.
45     - document that the signal mask might be in an unspecified
46     state when using libev's signal handling.
47 root 1.136 - take advantage of some GNU/Linux calls to set cloexec/nonblock
48     on fd creation, to avoid race conditions.
49 root 1.132
50 root 1.131 3.7 Fri Jul 17 16:36:32 CEST 2009
51 root 1.128 - ev_unloop and ev_loop wrongly used a global variable to exit loops,
52     instead of using a per-loop variable (bug caught by accident...).
53     - the ev_set_io_collect_interval interpretation has changed.
54     - add new functionality: ev_set_userdata, ev_userdata,
55 root 1.126 ev_set_invoke_pending_cb, ev_set_loop_release_cb,
56 root 1.132 ev_invoke_pending, ev_pending_count, together with a long example
57     about thread locking.
58 root 1.128 - add ev_timer_remaining (as requested by Denis F. Latypoff).
59     - add ev_loop_depth.
60 root 1.124 - calling ev_unloop in fork/prepare watchers will no longer poll
61     for new events.
62 root 1.115 - Denis F. Latypoff corrected many typos in example code snippets.
63     - honor autoconf detection of EV_USE_CLOCK_SYSCALL, also double-
64     check that the syscall number is available before trying to
65     use it (reported by ry@tinyclouds).
66 root 1.117 - use GetSystemTimeAsFileTime instead of _timeb on windows, for
67 root 1.116 slightly higher accuracy.
68 root 1.122 - properly declare ev_loop_verify and ev_now_update even when
69     !EV_MULTIPLICITY.
70 root 1.121 - do not compile in any priority code when EV_MAXPRI == EV_MINPRI.
71 root 1.123 - support EV_MINIMAL==2 for a reduced API.
72 root 1.125 - actually 0-initialise struct sigaction when installing signals.
73 root 1.127 - add section on hibernate and stopped processes to ev_timer docs.
74 root 1.115
75 root 1.113 3.6 Tue Apr 28 02:49:30 CEST 2009
76 root 1.107 - multiple timers becoming ready within an event loop iteration
77     will be invoked in the "correct" order now.
78 root 1.105 - do not leave the event loop early just because we have no active
79     watchers, fixing a problem when embedding a kqueue loop
80     that has active kernel events but no registered watchers
81     (reported by blacksand blacksand).
82 root 1.102 - correctly zero the idx values for arrays, so destroying and
83     reinitialising the default loop actually works (patch by
84     Malek Hadj-Ali).
85 root 1.108 - implement ev_suspend and ev_resume.
86 root 1.106 - new EV_CUSTOM revents flag for use by applications.
87 root 1.109 - add documentation section about priorites.
88     - add a glossary to the dcoumentation.
89 root 1.111 - extend the ev_fork description slightly.
90 root 1.112 - optimize a jump out of call_pending.
91 root 1.102
92 root 1.101 3.53 Sun Feb 15 02:38:20 CET 2009
93     - fix a bug in event pipe creation on win32 that would cause a
94     failed assertion on event loop creation (patch by Malek Hadj-Ali).
95 root 1.100 - probe for CLOCK_REALTIME support at runtime as well and fall
96     back to gettimeofday if there is an error, to support older
97     operating systems with newer header files/libraries.
98     - prefer gettimeofday over clock_gettime with USE_CLOCK_SYSCALL
99     (default most everywhere), otherwise not.
100    
101 root 1.99 3.52 Wed Jan 7 21:43:02 CET 2009
102 root 1.97 - fix compilation of select backend in fd_set mode when NFDBITS is
103     missing (to get it to compile on QNX, reported by Rodrigo Campos).
104     - better select-nfds handling when select backend is in fd_set mode.
105     - diagnose fd_set overruns when select backend is in fd_set mode.
106     - due to a thinko, instead of disabling everything but
107     select on the borked OS X platform, everything but select was
108     allowed (reported by Emanuele Giaquinta).
109 root 1.95 - actually verify that local and remote port are matching in
110     libev's socketpair emulation, which makes denial-of-service
111     attacks harder (but not impossible - it's windows). Make sure
112 root 1.96 it even works under vista, which thinks that getpeer/sockname
113     should return fantasy port numbers.
114 root 1.100 - include "libev" in all assertion messages for potentially
115 root 1.97 clearer diagnostics.
116 root 1.98 - event_get_version (libevent compatibility) returned
117     a useless string instead of the expected version string
118     (patch by W.C.A. Wijngaards).
119 root 1.95
120 root 1.94 3.51 Wed Dec 24 23:00:11 CET 2008
121 root 1.91 - fix a bug where an inotify watcher was added twice, causing
122 root 1.92 freezes on hash collisions (reported and analysed by Graham Leggett).
123 root 1.87 - new config symbol, EV_USE_CLOCK_SYSCALL, to make libev use
124     a direct syscall - slower, but no dependency on librt et al.
125 root 1.88 - assume negative return values != -1 signals success of port_getn
126     (http://cvs.epicsol.org/cgi/viewcvs.cgi/epic5/source/newio.c?rev=1.52)
127     (no known failure reports, but it doesn't hurt).
128 root 1.93 - fork detection in ev_embed now stops and restarts the watcher
129     automatically.
130 root 1.89 - EXPERIMENTAL: default the method to operator () in ev++.h,
131     to make it nicer to use functors (requested by Benedek László).
132     - fixed const object callbacks in ev++.h.
133 root 1.90 - replaced loop_ref argument of watcher.set (loop) by a direct
134     ev_loop * in ev++.h, to avoid clashes with functor patch.
135 root 1.91 - do not try to watch the empty string via inotify.
136 root 1.92 - inotify watchers could be leaked under certain circumstances.
137     - OS X 10.5 is actually even more broken than earlier versions,
138     so fall back to select on that piece of garbage.
139 root 1.93 - fixed some weirdness in the ev_embed documentation.
140 root 1.87
141 root 1.86 3.49 Wed Nov 19 11:26:53 CET 2008
142 root 1.83 - ev_stat watchers will now use inotify as a mere hint on
143     kernels <2.6.25, or if the filesystem is not in the
144     "known to be good" list.
145 root 1.84 - better mingw32 compatibility (it's not as borked as native win32)
146     (analysed by Roger Pack).
147 root 1.85 - include stdio.h in the example program, as too many people are
148     confused by the weird C language otherwise. I guess the next thing
149     I get told is that the "..." ellipses in the examples don't compile
150     with their C compiler.
151 root 1.83
152 root 1.80 3.48 Thu Oct 30 09:02:37 CET 2008
153 root 1.71 - further optimise away the EPOLL_CTL_ADD/MOD combo in the epoll
154     backend by assuming the kernel event mask hasn't changed if
155     ADD fails with EEXIST.
156 root 1.75 - work around spurious event notification bugs in epoll by using
157 root 1.77 a 32-bit generation counter. recreate kernel state if we receive
158 root 1.78 spurious notifications or unwanted events. this is very costly,
159     but I didn't come up with this horrible design.
160 root 1.71 - use memset to initialise most arrays now and do away with the
161     init functions.
162 root 1.72 - expand time-out strategies into a "Be smart about timeouts" section.
163     - drop the "struct" from all ev_watcher declarations in the
164 root 1.73 documentation and did other clarifications (yeah, it was a mistake
165     to have a struct AND a function called ev_loop).
166 root 1.74 - fix a bug where ev_default would not initialise the default
167     loop again after it was destroyed with ev_default_destroy.
168 root 1.79 - rename syserr to ev_syserr to avoid name clashes when embedding,
169     do similar changes for event.c.
170 root 1.71
171 root 1.69 3.45 Tue Oct 21 21:59:26 CEST 2008
172 root 1.67 - disable inotify usage on linux <2.6.25, as it is broken
173     (reported by Yoann Vandoorselaere).
174     - ev_stat errornously would try to add inotify watchers
175 root 1.68 even when inotify wasn't available (this should only
176 root 1.67 have a performance impact).
177 root 1.65 - ev_once now passes both timeout and io to the callback if both
178     occur concurrently, instead of giving timeouts precedence.
179 root 1.66 - disable EV_USE_INOTIFY when sys/inotify.h is too old.
180 root 1.65
181 root 1.62 3.44 Mon Sep 29 05:18:39 CEST 2008
182     - embed watchers now automatically invoke ev_loop_fork on the
183     embedded loop when the parent loop forks.
184 root 1.58 - new function: ev_now_update (loop).
185 root 1.57 - verify_watcher was not marked static.
186 root 1.59 - improve the "associating..." manpage section.
187 root 1.60 - documentation tweaks here and there.
188 root 1.57
189 root 1.56 3.43 Sun Jul 6 05:34:41 CEST 2008
190 root 1.54 - include more include files on windows to get struct _stati64
191 root 1.56 (reported by Chris Hulbert, but doesn't quite fix his issue).
192 root 1.53 - add missing #include <io.h> in ev.c on windows (reported by
193     Matt Tolton).
194    
195 root 1.52 3.42 Tue Jun 17 12:12:07 CEST 2008
196 root 1.50 - work around yet another windows bug: FD_SET actually adds fd's
197     multiple times to the fd_*SET*, despite official MSN docs claiming
198 root 1.51 otherwise. Reported and well-analysed by Matt Tolton.
199     - define NFDBITS to 0 when EV_SELECT_IS_WINSOCKET to make it compile
200 root 1.48 (reported any analysed by Chris Hulbert).
201 root 1.49 - fix a bug in ev_ebadf (this function is only used to catch
202     programming errors in the libev user). reported by Matt Tolton.
203     - fix a bug in fd_intern on win32 (could lead to compile errors
204     under some circumstances, but would work correctly if it compiles).
205     reported by Matt Tolton.
206 root 1.50 - (try to) work around missing lstat on windows.
207 root 1.45 - pass in the write fd set as except fd set under windows. windows
208 root 1.46 is so uncontrollably lame that it requires this. this means that
209     switching off oobinline is not supported (but tcp/ip doesn't
210     have oob, so that would be stupid anyways.
211 root 1.47 - use posix module symbol to auto-detect monotonic clock presence
212     and some other default values.
213 root 1.45
214 root 1.44 3.41 Fri May 23 18:42:54 CEST 2008
215 root 1.46 - work around an obscure bug in winsocket select: if you
216 root 1.40 provide only empty fd sets then select returns WSAEINVAL. how sucky.
217 root 1.41 - improve timer scheduling stability and reduce use of time_epsilon.
218 root 1.36 - use 1-based 2-heap for EV_MINIMAL, simplifies code, reduces
219     codesize and makes for better cache-efficiency.
220     - use 3-based 4-heap for !EV_MINIMAL. this makes better use
221     of cpu cache lines and gives better growth behaviour than
222     2-based heaps.
223 root 1.38 - cache timestamp within heap for !EV_MINIMAL, to avoid random
224     memory accesses.
225     - document/add EV_USE_4HEAP and EV_HEAP_CACHE_AT.
226 root 1.33 - fix a potential aliasing issue in ev_timer_again.
227 root 1.35 - add/document ev_periodic_at, retract direct access to ->at.
228     - improve ev_stat docs.
229     - add portability requirements section.
230 root 1.39 - fix manpage headers etc.
231 root 1.40 - normalise WSA error codes to lower range on windows.
232 root 1.43 - add consistency check code that can be called automatically
233     or on demand to check for internal structures (ev_loop_verify).
234 root 1.31
235 root 1.30 3.31 Wed Apr 16 20:45:04 CEST 2008
236     - added last minute fix for ev_poll.c by Brandon Black.
237 root 1.29
238 root 1.28 3.3 Wed Apr 16 19:04:10 CEST 2008
239 root 1.23 - event_base_loopexit should return 0 on success
240     (W.C.A. Wijngaards).
241 root 1.20 - added linux eventfd support.
242     - try to autodetect epoll and inotify support
243     by libc header version if not using autoconf.
244 root 1.21 - new symbols: EV_DEFAULT_UC and EV_DEFAULT_UC_.
245     - declare functions defined in ev.h as inline if
246     C99 or gcc are available.
247     - enable inlining with gcc versions 2 and 3.
248 root 1.25 - work around broken poll implementations potentially
249     not clearing revents field in ev_poll (Brandon Black)
250     (no such systems are known at this time).
251 root 1.23 - work around a bug in realloc on openbsd and darwin,
252     also makes the errornous valgrind complaints
253     go away (noted by various people).
254 root 1.26 - fix ev_async_pending, add c++ wrapper for ev_async
255     (based on patch sent by Johannes Deisenhofer.
256     - add sensible set method to ev::embed.
257 root 1.27 - made integer constants type int in ev.h.
258 root 1.20
259 root 1.19 3.2 Wed Apr 2 17:11:19 CEST 2008
260 root 1.15 - fix a 64 bit overflow issue in the select backend,
261     by using fd_mask instead of int for the mask.
262 root 1.16 - rename internal sighandler to avoid clash with very old perls.
263 root 1.18 - entering ev_loop will not clear the ONESHOT or NONBLOCKING
264     flags of any outer loops anymore.
265 root 1.17 - add ev_async_pending.
266 root 1.15
267 root 1.14 3.1 Thu Mar 13 13:45:22 CET 2008
268 root 1.12 - implement ev_async watchers.
269 root 1.10 - only initialise signal pipe on demand.
270     - make use of sig_atomic_t configurable.
271 root 1.14 - improved documentation.
272 root 1.10
273 root 1.9 3.0 Mon Jan 28 13:14:47 CET 2008
274 root 1.6 - API/ABI bump to version 3.0.
275 root 1.4 - ev++.h includes "ev.h" by default now, not <ev.h>.
276     - slightly improved documentation.
277 root 1.5 - speed up signal detection after a fork.
278 root 1.6 - only optionally return trace status changed in ev_child
279     watchers.
280 root 1.8 - experimental (and undocumented) loop wrappers for ev++.h.
281 root 1.4
282 root 1.2 2.01 Tue Dec 25 08:04:41 CET 2007
283 root 1.3 - separate Changes file.
284 root 1.2 - fix ev_path_set => ev_stat_set typo.
285     - remove event_compat.h from the libev tarball.
286     - change how include files are found.
287     - doc updates.
288     - update licenses, explicitly allow for GPL relicensing.
289    
290     2.0 Sat Dec 22 17:47:03 CET 2007
291     - new ev_sleep, ev_set_(io|timeout)_collect_interval.
292     - removed epoll from embeddable fd set.
293     - fix embed watchers.
294     - renamed ev_embed.loop to other.
295     - added exported Symbol tables.
296     - undefine member wrapper macros at the end of ev.c.
297     - respect EV_H in ev++.h.
298    
299     1.86 Tue Dec 18 02:36:57 CET 2007
300     - fix memleak on loop destroy (not relevant for perl).
301    
302     1.85 Fri Dec 14 20:32:40 CET 2007
303     - fix some aliasing issues w.r.t. timers and periodics
304     (not relevant for perl).
305    
306     (for historic versions refer to EV/Changes, found in the Perl interface)
307    
308 root 1.1 0.1 Wed Oct 31 21:31:48 CET 2007
309     - original version; hacked together in <24h.
310