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Revision: 1.126
Committed: Tue Jul 14 19:02:43 2009 UTC (14 years, 10 months ago) by root
Branch: MAIN
Changes since 1.125: +5 -1 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 1.114 TODO: ev_walk
4 root 1.115 TODO: remain
5 root 1.124 TODO: EV_MINIMAL
6 root 1.126
7     - new functionality: ev_set_userdata, ev_userdata,
8     ev_set_invoke_pending_cb, ev_set_loop_release_cb,
9     ev_invoke_pending, together with a long example about thread
10     locking.
11 root 1.119 - ev_unloop and ev_loop wrongly used a global variable to exit loops,
12     instead of using a per-loop variable (bug caught by accident...).
13 root 1.124 - calling ev_unloop in fork/prepare watchers will no longer poll
14     for new events.
15 root 1.115 - Denis F. Latypoff corrected many typos in example code snippets.
16 root 1.118 - the ev_set_io_collect_interval interpretation has changed.
17 root 1.115 - honor autoconf detection of EV_USE_CLOCK_SYSCALL, also double-
18     check that the syscall number is available before trying to
19     use it (reported by ry@tinyclouds).
20 root 1.117 - use GetSystemTimeAsFileTime instead of _timeb on windows, for
21 root 1.116 slightly higher accuracy.
22 root 1.122 - properly declare ev_loop_verify and ev_now_update even when
23     !EV_MULTIPLICITY.
24 root 1.119 - implement ev_loop_depth.
25 root 1.121 - do not compile in any priority code when EV_MAXPRI == EV_MINPRI.
26 root 1.123 - support EV_MINIMAL==2 for a reduced API.
27 root 1.125 - actually 0-initialise struct sigaction when installing signals.
28 root 1.115
29 root 1.113 3.6 Tue Apr 28 02:49:30 CEST 2009
30 root 1.107 - multiple timers becoming ready within an event loop iteration
31     will be invoked in the "correct" order now.
32 root 1.105 - do not leave the event loop early just because we have no active
33     watchers, fixing a problem when embedding a kqueue loop
34     that has active kernel events but no registered watchers
35     (reported by blacksand blacksand).
36 root 1.102 - correctly zero the idx values for arrays, so destroying and
37     reinitialising the default loop actually works (patch by
38     Malek Hadj-Ali).
39 root 1.108 - implement ev_suspend and ev_resume.
40 root 1.106 - new EV_CUSTOM revents flag for use by applications.
41 root 1.109 - add documentation section about priorites.
42     - add a glossary to the dcoumentation.
43 root 1.111 - extend the ev_fork description slightly.
44 root 1.112 - optimize a jump out of call_pending.
45 root 1.102
46 root 1.101 3.53 Sun Feb 15 02:38:20 CET 2009
47     - fix a bug in event pipe creation on win32 that would cause a
48     failed assertion on event loop creation (patch by Malek Hadj-Ali).
49 root 1.100 - probe for CLOCK_REALTIME support at runtime as well and fall
50     back to gettimeofday if there is an error, to support older
51     operating systems with newer header files/libraries.
52     - prefer gettimeofday over clock_gettime with USE_CLOCK_SYSCALL
53     (default most everywhere), otherwise not.
54    
55 root 1.99 3.52 Wed Jan 7 21:43:02 CET 2009
56 root 1.97 - fix compilation of select backend in fd_set mode when NFDBITS is
57     missing (to get it to compile on QNX, reported by Rodrigo Campos).
58     - better select-nfds handling when select backend is in fd_set mode.
59     - diagnose fd_set overruns when select backend is in fd_set mode.
60     - due to a thinko, instead of disabling everything but
61     select on the borked OS X platform, everything but select was
62     allowed (reported by Emanuele Giaquinta).
63 root 1.95 - actually verify that local and remote port are matching in
64     libev's socketpair emulation, which makes denial-of-service
65     attacks harder (but not impossible - it's windows). Make sure
66 root 1.96 it even works under vista, which thinks that getpeer/sockname
67     should return fantasy port numbers.
68 root 1.100 - include "libev" in all assertion messages for potentially
69 root 1.97 clearer diagnostics.
70 root 1.98 - event_get_version (libevent compatibility) returned
71     a useless string instead of the expected version string
72     (patch by W.C.A. Wijngaards).
73 root 1.95
74 root 1.94 3.51 Wed Dec 24 23:00:11 CET 2008
75 root 1.91 - fix a bug where an inotify watcher was added twice, causing
76 root 1.92 freezes on hash collisions (reported and analysed by Graham Leggett).
77 root 1.87 - new config symbol, EV_USE_CLOCK_SYSCALL, to make libev use
78     a direct syscall - slower, but no dependency on librt et al.
79 root 1.88 - assume negative return values != -1 signals success of port_getn
80     (http://cvs.epicsol.org/cgi/viewcvs.cgi/epic5/source/newio.c?rev=1.52)
81     (no known failure reports, but it doesn't hurt).
82 root 1.93 - fork detection in ev_embed now stops and restarts the watcher
83     automatically.
84 root 1.89 - EXPERIMENTAL: default the method to operator () in ev++.h,
85     to make it nicer to use functors (requested by Benedek László).
86     - fixed const object callbacks in ev++.h.
87 root 1.90 - replaced loop_ref argument of watcher.set (loop) by a direct
88     ev_loop * in ev++.h, to avoid clashes with functor patch.
89 root 1.91 - do not try to watch the empty string via inotify.
90 root 1.92 - inotify watchers could be leaked under certain circumstances.
91     - OS X 10.5 is actually even more broken than earlier versions,
92     so fall back to select on that piece of garbage.
93 root 1.93 - fixed some weirdness in the ev_embed documentation.
94 root 1.87
95 root 1.86 3.49 Wed Nov 19 11:26:53 CET 2008
96 root 1.83 - ev_stat watchers will now use inotify as a mere hint on
97     kernels <2.6.25, or if the filesystem is not in the
98     "known to be good" list.
99 root 1.84 - better mingw32 compatibility (it's not as borked as native win32)
100     (analysed by Roger Pack).
101 root 1.85 - include stdio.h in the example program, as too many people are
102     confused by the weird C language otherwise. I guess the next thing
103     I get told is that the "..." ellipses in the examples don't compile
104     with their C compiler.
105 root 1.83
106 root 1.80 3.48 Thu Oct 30 09:02:37 CET 2008
107 root 1.71 - further optimise away the EPOLL_CTL_ADD/MOD combo in the epoll
108     backend by assuming the kernel event mask hasn't changed if
109     ADD fails with EEXIST.
110 root 1.75 - work around spurious event notification bugs in epoll by using
111 root 1.77 a 32-bit generation counter. recreate kernel state if we receive
112 root 1.78 spurious notifications or unwanted events. this is very costly,
113     but I didn't come up with this horrible design.
114 root 1.71 - use memset to initialise most arrays now and do away with the
115     init functions.
116 root 1.72 - expand time-out strategies into a "Be smart about timeouts" section.
117     - drop the "struct" from all ev_watcher declarations in the
118 root 1.73 documentation and did other clarifications (yeah, it was a mistake
119     to have a struct AND a function called ev_loop).
120 root 1.74 - fix a bug where ev_default would not initialise the default
121     loop again after it was destroyed with ev_default_destroy.
122 root 1.79 - rename syserr to ev_syserr to avoid name clashes when embedding,
123     do similar changes for event.c.
124 root 1.71
125 root 1.69 3.45 Tue Oct 21 21:59:26 CEST 2008
126 root 1.67 - disable inotify usage on linux <2.6.25, as it is broken
127     (reported by Yoann Vandoorselaere).
128     - ev_stat errornously would try to add inotify watchers
129 root 1.68 even when inotify wasn't available (this should only
130 root 1.67 have a performance impact).
131 root 1.65 - ev_once now passes both timeout and io to the callback if both
132     occur concurrently, instead of giving timeouts precedence.
133 root 1.66 - disable EV_USE_INOTIFY when sys/inotify.h is too old.
134 root 1.65
135 root 1.62 3.44 Mon Sep 29 05:18:39 CEST 2008
136     - embed watchers now automatically invoke ev_loop_fork on the
137     embedded loop when the parent loop forks.
138 root 1.58 - new function: ev_now_update (loop).
139 root 1.57 - verify_watcher was not marked static.
140 root 1.59 - improve the "associating..." manpage section.
141 root 1.60 - documentation tweaks here and there.
142 root 1.57
143 root 1.56 3.43 Sun Jul 6 05:34:41 CEST 2008
144 root 1.54 - include more include files on windows to get struct _stati64
145 root 1.56 (reported by Chris Hulbert, but doesn't quite fix his issue).
146 root 1.53 - add missing #include <io.h> in ev.c on windows (reported by
147     Matt Tolton).
148    
149 root 1.52 3.42 Tue Jun 17 12:12:07 CEST 2008
150 root 1.50 - work around yet another windows bug: FD_SET actually adds fd's
151     multiple times to the fd_*SET*, despite official MSN docs claiming
152 root 1.51 otherwise. Reported and well-analysed by Matt Tolton.
153     - define NFDBITS to 0 when EV_SELECT_IS_WINSOCKET to make it compile
154 root 1.48 (reported any analysed by Chris Hulbert).
155 root 1.49 - fix a bug in ev_ebadf (this function is only used to catch
156     programming errors in the libev user). reported by Matt Tolton.
157     - fix a bug in fd_intern on win32 (could lead to compile errors
158     under some circumstances, but would work correctly if it compiles).
159     reported by Matt Tolton.
160 root 1.50 - (try to) work around missing lstat on windows.
161 root 1.45 - pass in the write fd set as except fd set under windows. windows
162 root 1.46 is so uncontrollably lame that it requires this. this means that
163     switching off oobinline is not supported (but tcp/ip doesn't
164     have oob, so that would be stupid anyways.
165 root 1.47 - use posix module symbol to auto-detect monotonic clock presence
166     and some other default values.
167 root 1.45
168 root 1.44 3.41 Fri May 23 18:42:54 CEST 2008
169 root 1.46 - work around an obscure bug in winsocket select: if you
170 root 1.40 provide only empty fd sets then select returns WSAEINVAL. how sucky.
171 root 1.41 - improve timer scheduling stability and reduce use of time_epsilon.
172 root 1.36 - use 1-based 2-heap for EV_MINIMAL, simplifies code, reduces
173     codesize and makes for better cache-efficiency.
174     - use 3-based 4-heap for !EV_MINIMAL. this makes better use
175     of cpu cache lines and gives better growth behaviour than
176     2-based heaps.
177 root 1.38 - cache timestamp within heap for !EV_MINIMAL, to avoid random
178     memory accesses.
179     - document/add EV_USE_4HEAP and EV_HEAP_CACHE_AT.
180 root 1.33 - fix a potential aliasing issue in ev_timer_again.
181 root 1.35 - add/document ev_periodic_at, retract direct access to ->at.
182     - improve ev_stat docs.
183     - add portability requirements section.
184 root 1.39 - fix manpage headers etc.
185 root 1.40 - normalise WSA error codes to lower range on windows.
186 root 1.43 - add consistency check code that can be called automatically
187     or on demand to check for internal structures (ev_loop_verify).
188 root 1.31
189 root 1.30 3.31 Wed Apr 16 20:45:04 CEST 2008
190     - added last minute fix for ev_poll.c by Brandon Black.
191 root 1.29
192 root 1.28 3.3 Wed Apr 16 19:04:10 CEST 2008
193 root 1.23 - event_base_loopexit should return 0 on success
194     (W.C.A. Wijngaards).
195 root 1.20 - added linux eventfd support.
196     - try to autodetect epoll and inotify support
197     by libc header version if not using autoconf.
198 root 1.21 - new symbols: EV_DEFAULT_UC and EV_DEFAULT_UC_.
199     - declare functions defined in ev.h as inline if
200     C99 or gcc are available.
201     - enable inlining with gcc versions 2 and 3.
202 root 1.25 - work around broken poll implementations potentially
203     not clearing revents field in ev_poll (Brandon Black)
204     (no such systems are known at this time).
205 root 1.23 - work around a bug in realloc on openbsd and darwin,
206     also makes the errornous valgrind complaints
207     go away (noted by various people).
208 root 1.26 - fix ev_async_pending, add c++ wrapper for ev_async
209     (based on patch sent by Johannes Deisenhofer.
210     - add sensible set method to ev::embed.
211 root 1.27 - made integer constants type int in ev.h.
212 root 1.20
213 root 1.19 3.2 Wed Apr 2 17:11:19 CEST 2008
214 root 1.15 - fix a 64 bit overflow issue in the select backend,
215     by using fd_mask instead of int for the mask.
216 root 1.16 - rename internal sighandler to avoid clash with very old perls.
217 root 1.18 - entering ev_loop will not clear the ONESHOT or NONBLOCKING
218     flags of any outer loops anymore.
219 root 1.17 - add ev_async_pending.
220 root 1.15
221 root 1.14 3.1 Thu Mar 13 13:45:22 CET 2008
222 root 1.12 - implement ev_async watchers.
223 root 1.10 - only initialise signal pipe on demand.
224     - make use of sig_atomic_t configurable.
225 root 1.14 - improved documentation.
226 root 1.10
227 root 1.9 3.0 Mon Jan 28 13:14:47 CET 2008
228 root 1.6 - API/ABI bump to version 3.0.
229 root 1.4 - ev++.h includes "ev.h" by default now, not <ev.h>.
230     - slightly improved documentation.
231 root 1.5 - speed up signal detection after a fork.
232 root 1.6 - only optionally return trace status changed in ev_child
233     watchers.
234 root 1.8 - experimental (and undocumented) loop wrappers for ev++.h.
235 root 1.4
236 root 1.2 2.01 Tue Dec 25 08:04:41 CET 2007
237 root 1.3 - separate Changes file.
238 root 1.2 - fix ev_path_set => ev_stat_set typo.
239     - remove event_compat.h from the libev tarball.
240     - change how include files are found.
241     - doc updates.
242     - update licenses, explicitly allow for GPL relicensing.
243    
244     2.0 Sat Dec 22 17:47:03 CET 2007
245     - new ev_sleep, ev_set_(io|timeout)_collect_interval.
246     - removed epoll from embeddable fd set.
247     - fix embed watchers.
248     - renamed ev_embed.loop to other.
249     - added exported Symbol tables.
250     - undefine member wrapper macros at the end of ev.c.
251     - respect EV_H in ev++.h.
252    
253     1.86 Tue Dec 18 02:36:57 CET 2007
254     - fix memleak on loop destroy (not relevant for perl).
255    
256     1.85 Fri Dec 14 20:32:40 CET 2007
257     - fix some aliasing issues w.r.t. timers and periodics
258     (not relevant for perl).
259    
260     (for historic versions refer to EV/Changes, found in the Perl interface)
261    
262 root 1.1 0.1 Wed Oct 31 21:31:48 CET 2007
263     - original version; hacked together in <24h.
264