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Revision: 1.120
Committed: Wed Jul 8 04:14:34 2009 UTC (14 years, 10 months ago) by root
Branch: MAIN
Changes since 1.119: +0 -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 1.119 - ev_unloop and ev_loop wrongly used a global variable to exit loops,
6     instead of using a per-loop variable (bug caught by accident...).
7 root 1.115 - Denis F. Latypoff corrected many typos in example code snippets.
8 root 1.118 - the ev_set_io_collect_interval interpretation has changed.
9 root 1.115 - honor autoconf detection of EV_USE_CLOCK_SYSCALL, also double-
10     check that the syscall number is available before trying to
11     use it (reported by ry@tinyclouds).
12 root 1.117 - use GetSystemTimeAsFileTime instead of _timeb on windows, for
13 root 1.116 slightly higher accuracy.
14 root 1.119 - properly declare ev_loop_verify even when !EV_MULTIPLICITY.
15     - implement ev_loop_depth.
16 root 1.115
17 root 1.113 3.6 Tue Apr 28 02:49:30 CEST 2009
18 root 1.107 - multiple timers becoming ready within an event loop iteration
19     will be invoked in the "correct" order now.
20 root 1.105 - do not leave the event loop early just because we have no active
21     watchers, fixing a problem when embedding a kqueue loop
22     that has active kernel events but no registered watchers
23     (reported by blacksand blacksand).
24 root 1.102 - correctly zero the idx values for arrays, so destroying and
25     reinitialising the default loop actually works (patch by
26     Malek Hadj-Ali).
27 root 1.108 - implement ev_suspend and ev_resume.
28 root 1.106 - new EV_CUSTOM revents flag for use by applications.
29 root 1.109 - add documentation section about priorites.
30     - add a glossary to the dcoumentation.
31 root 1.111 - extend the ev_fork description slightly.
32 root 1.112 - optimize a jump out of call_pending.
33 root 1.102
34 root 1.101 3.53 Sun Feb 15 02:38:20 CET 2009
35     - fix a bug in event pipe creation on win32 that would cause a
36     failed assertion on event loop creation (patch by Malek Hadj-Ali).
37 root 1.100 - probe for CLOCK_REALTIME support at runtime as well and fall
38     back to gettimeofday if there is an error, to support older
39     operating systems with newer header files/libraries.
40     - prefer gettimeofday over clock_gettime with USE_CLOCK_SYSCALL
41     (default most everywhere), otherwise not.
42    
43 root 1.99 3.52 Wed Jan 7 21:43:02 CET 2009
44 root 1.97 - fix compilation of select backend in fd_set mode when NFDBITS is
45     missing (to get it to compile on QNX, reported by Rodrigo Campos).
46     - better select-nfds handling when select backend is in fd_set mode.
47     - diagnose fd_set overruns when select backend is in fd_set mode.
48     - due to a thinko, instead of disabling everything but
49     select on the borked OS X platform, everything but select was
50     allowed (reported by Emanuele Giaquinta).
51 root 1.95 - actually verify that local and remote port are matching in
52     libev's socketpair emulation, which makes denial-of-service
53     attacks harder (but not impossible - it's windows). Make sure
54 root 1.96 it even works under vista, which thinks that getpeer/sockname
55     should return fantasy port numbers.
56 root 1.100 - include "libev" in all assertion messages for potentially
57 root 1.97 clearer diagnostics.
58 root 1.98 - event_get_version (libevent compatibility) returned
59     a useless string instead of the expected version string
60     (patch by W.C.A. Wijngaards).
61 root 1.95
62 root 1.94 3.51 Wed Dec 24 23:00:11 CET 2008
63 root 1.91 - fix a bug where an inotify watcher was added twice, causing
64 root 1.92 freezes on hash collisions (reported and analysed by Graham Leggett).
65 root 1.87 - new config symbol, EV_USE_CLOCK_SYSCALL, to make libev use
66     a direct syscall - slower, but no dependency on librt et al.
67 root 1.88 - assume negative return values != -1 signals success of port_getn
68     (http://cvs.epicsol.org/cgi/viewcvs.cgi/epic5/source/newio.c?rev=1.52)
69     (no known failure reports, but it doesn't hurt).
70 root 1.93 - fork detection in ev_embed now stops and restarts the watcher
71     automatically.
72 root 1.89 - EXPERIMENTAL: default the method to operator () in ev++.h,
73     to make it nicer to use functors (requested by Benedek László).
74     - fixed const object callbacks in ev++.h.
75 root 1.90 - replaced loop_ref argument of watcher.set (loop) by a direct
76     ev_loop * in ev++.h, to avoid clashes with functor patch.
77 root 1.91 - do not try to watch the empty string via inotify.
78 root 1.92 - inotify watchers could be leaked under certain circumstances.
79     - OS X 10.5 is actually even more broken than earlier versions,
80     so fall back to select on that piece of garbage.
81 root 1.93 - fixed some weirdness in the ev_embed documentation.
82 root 1.87
83 root 1.86 3.49 Wed Nov 19 11:26:53 CET 2008
84 root 1.83 - ev_stat watchers will now use inotify as a mere hint on
85     kernels <2.6.25, or if the filesystem is not in the
86     "known to be good" list.
87 root 1.84 - better mingw32 compatibility (it's not as borked as native win32)
88     (analysed by Roger Pack).
89 root 1.85 - include stdio.h in the example program, as too many people are
90     confused by the weird C language otherwise. I guess the next thing
91     I get told is that the "..." ellipses in the examples don't compile
92     with their C compiler.
93 root 1.83
94 root 1.80 3.48 Thu Oct 30 09:02:37 CET 2008
95 root 1.71 - further optimise away the EPOLL_CTL_ADD/MOD combo in the epoll
96     backend by assuming the kernel event mask hasn't changed if
97     ADD fails with EEXIST.
98 root 1.75 - work around spurious event notification bugs in epoll by using
99 root 1.77 a 32-bit generation counter. recreate kernel state if we receive
100 root 1.78 spurious notifications or unwanted events. this is very costly,
101     but I didn't come up with this horrible design.
102 root 1.71 - use memset to initialise most arrays now and do away with the
103     init functions.
104 root 1.72 - expand time-out strategies into a "Be smart about timeouts" section.
105     - drop the "struct" from all ev_watcher declarations in the
106 root 1.73 documentation and did other clarifications (yeah, it was a mistake
107     to have a struct AND a function called ev_loop).
108 root 1.74 - fix a bug where ev_default would not initialise the default
109     loop again after it was destroyed with ev_default_destroy.
110 root 1.79 - rename syserr to ev_syserr to avoid name clashes when embedding,
111     do similar changes for event.c.
112 root 1.71
113 root 1.69 3.45 Tue Oct 21 21:59:26 CEST 2008
114 root 1.67 - disable inotify usage on linux <2.6.25, as it is broken
115     (reported by Yoann Vandoorselaere).
116     - ev_stat errornously would try to add inotify watchers
117 root 1.68 even when inotify wasn't available (this should only
118 root 1.67 have a performance impact).
119 root 1.65 - ev_once now passes both timeout and io to the callback if both
120     occur concurrently, instead of giving timeouts precedence.
121 root 1.66 - disable EV_USE_INOTIFY when sys/inotify.h is too old.
122 root 1.65
123 root 1.62 3.44 Mon Sep 29 05:18:39 CEST 2008
124     - embed watchers now automatically invoke ev_loop_fork on the
125     embedded loop when the parent loop forks.
126 root 1.58 - new function: ev_now_update (loop).
127 root 1.57 - verify_watcher was not marked static.
128 root 1.59 - improve the "associating..." manpage section.
129 root 1.60 - documentation tweaks here and there.
130 root 1.57
131 root 1.56 3.43 Sun Jul 6 05:34:41 CEST 2008
132 root 1.54 - include more include files on windows to get struct _stati64
133 root 1.56 (reported by Chris Hulbert, but doesn't quite fix his issue).
134 root 1.53 - add missing #include <io.h> in ev.c on windows (reported by
135     Matt Tolton).
136    
137 root 1.52 3.42 Tue Jun 17 12:12:07 CEST 2008
138 root 1.50 - work around yet another windows bug: FD_SET actually adds fd's
139     multiple times to the fd_*SET*, despite official MSN docs claiming
140 root 1.51 otherwise. Reported and well-analysed by Matt Tolton.
141     - define NFDBITS to 0 when EV_SELECT_IS_WINSOCKET to make it compile
142 root 1.48 (reported any analysed by Chris Hulbert).
143 root 1.49 - fix a bug in ev_ebadf (this function is only used to catch
144     programming errors in the libev user). reported by Matt Tolton.
145     - fix a bug in fd_intern on win32 (could lead to compile errors
146     under some circumstances, but would work correctly if it compiles).
147     reported by Matt Tolton.
148 root 1.50 - (try to) work around missing lstat on windows.
149 root 1.45 - pass in the write fd set as except fd set under windows. windows
150 root 1.46 is so uncontrollably lame that it requires this. this means that
151     switching off oobinline is not supported (but tcp/ip doesn't
152     have oob, so that would be stupid anyways.
153 root 1.47 - use posix module symbol to auto-detect monotonic clock presence
154     and some other default values.
155 root 1.45
156 root 1.44 3.41 Fri May 23 18:42:54 CEST 2008
157 root 1.46 - work around an obscure bug in winsocket select: if you
158 root 1.40 provide only empty fd sets then select returns WSAEINVAL. how sucky.
159 root 1.41 - improve timer scheduling stability and reduce use of time_epsilon.
160 root 1.36 - use 1-based 2-heap for EV_MINIMAL, simplifies code, reduces
161     codesize and makes for better cache-efficiency.
162     - use 3-based 4-heap for !EV_MINIMAL. this makes better use
163     of cpu cache lines and gives better growth behaviour than
164     2-based heaps.
165 root 1.38 - cache timestamp within heap for !EV_MINIMAL, to avoid random
166     memory accesses.
167     - document/add EV_USE_4HEAP and EV_HEAP_CACHE_AT.
168 root 1.33 - fix a potential aliasing issue in ev_timer_again.
169 root 1.35 - add/document ev_periodic_at, retract direct access to ->at.
170     - improve ev_stat docs.
171     - add portability requirements section.
172 root 1.39 - fix manpage headers etc.
173 root 1.40 - normalise WSA error codes to lower range on windows.
174 root 1.43 - add consistency check code that can be called automatically
175     or on demand to check for internal structures (ev_loop_verify).
176 root 1.31
177 root 1.30 3.31 Wed Apr 16 20:45:04 CEST 2008
178     - added last minute fix for ev_poll.c by Brandon Black.
179 root 1.29
180 root 1.28 3.3 Wed Apr 16 19:04:10 CEST 2008
181 root 1.23 - event_base_loopexit should return 0 on success
182     (W.C.A. Wijngaards).
183 root 1.20 - added linux eventfd support.
184     - try to autodetect epoll and inotify support
185     by libc header version if not using autoconf.
186 root 1.21 - new symbols: EV_DEFAULT_UC and EV_DEFAULT_UC_.
187     - declare functions defined in ev.h as inline if
188     C99 or gcc are available.
189     - enable inlining with gcc versions 2 and 3.
190 root 1.25 - work around broken poll implementations potentially
191     not clearing revents field in ev_poll (Brandon Black)
192     (no such systems are known at this time).
193 root 1.23 - work around a bug in realloc on openbsd and darwin,
194     also makes the errornous valgrind complaints
195     go away (noted by various people).
196 root 1.26 - fix ev_async_pending, add c++ wrapper for ev_async
197     (based on patch sent by Johannes Deisenhofer.
198     - add sensible set method to ev::embed.
199 root 1.27 - made integer constants type int in ev.h.
200 root 1.20
201 root 1.19 3.2 Wed Apr 2 17:11:19 CEST 2008
202 root 1.15 - fix a 64 bit overflow issue in the select backend,
203     by using fd_mask instead of int for the mask.
204 root 1.16 - rename internal sighandler to avoid clash with very old perls.
205 root 1.18 - entering ev_loop will not clear the ONESHOT or NONBLOCKING
206     flags of any outer loops anymore.
207 root 1.17 - add ev_async_pending.
208 root 1.15
209 root 1.14 3.1 Thu Mar 13 13:45:22 CET 2008
210 root 1.12 - implement ev_async watchers.
211 root 1.10 - only initialise signal pipe on demand.
212     - make use of sig_atomic_t configurable.
213 root 1.14 - improved documentation.
214 root 1.10
215 root 1.9 3.0 Mon Jan 28 13:14:47 CET 2008
216 root 1.6 - API/ABI bump to version 3.0.
217 root 1.4 - ev++.h includes "ev.h" by default now, not <ev.h>.
218     - slightly improved documentation.
219 root 1.5 - speed up signal detection after a fork.
220 root 1.6 - only optionally return trace status changed in ev_child
221     watchers.
222 root 1.8 - experimental (and undocumented) loop wrappers for ev++.h.
223 root 1.4
224 root 1.2 2.01 Tue Dec 25 08:04:41 CET 2007
225 root 1.3 - separate Changes file.
226 root 1.2 - fix ev_path_set => ev_stat_set typo.
227     - remove event_compat.h from the libev tarball.
228     - change how include files are found.
229     - doc updates.
230     - update licenses, explicitly allow for GPL relicensing.
231    
232     2.0 Sat Dec 22 17:47:03 CET 2007
233     - new ev_sleep, ev_set_(io|timeout)_collect_interval.
234     - removed epoll from embeddable fd set.
235     - fix embed watchers.
236     - renamed ev_embed.loop to other.
237     - added exported Symbol tables.
238     - undefine member wrapper macros at the end of ev.c.
239     - respect EV_H in ev++.h.
240    
241     1.86 Tue Dec 18 02:36:57 CET 2007
242     - fix memleak on loop destroy (not relevant for perl).
243    
244     1.85 Fri Dec 14 20:32:40 CET 2007
245     - fix some aliasing issues w.r.t. timers and periodics
246     (not relevant for perl).
247    
248     (for historic versions refer to EV/Changes, found in the Perl interface)
249    
250 root 1.1 0.1 Wed Oct 31 21:31:48 CET 2007
251     - original version; hacked together in <24h.
252