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