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Revision: 1.90
Committed: Wed Dec 3 15:26:23 2008 UTC (15 years, 5 months ago) by root
Branch: MAIN
Changes since 1.89: +2 -0 lines
Log Message:
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File Contents

# Content
1 Revision history for libev, a high-performance and full-featured event loop.
2
3 - new config symbol, EV_USE_CLOCK_SYSCALL, to make libev use
4 a direct syscall - slower, but no dependency on librt et al.
5 - assume negative return values != -1 signals success of port_getn
6 (http://cvs.epicsol.org/cgi/viewcvs.cgi/epic5/source/newio.c?rev=1.52)
7 (no known failure reports, but it doesn't hurt).
8 - EXPERIMENTAL: default the method to operator () in ev++.h,
9 to make it nicer to use functors (requested by Benedek László).
10 - fixed const object callbacks in ev++.h.
11 - replaced loop_ref argument of watcher.set (loop) by a direct
12 ev_loop * in ev++.h, to avoid clashes with functor patch.
13
14 3.49 Wed Nov 19 11:26:53 CET 2008
15 - ev_stat watchers will now use inotify as a mere hint on
16 kernels <2.6.25, or if the filesystem is not in the
17 "known to be good" list.
18 - better mingw32 compatibility (it's not as borked as native win32)
19 (analysed by Roger Pack).
20 - include stdio.h in the example program, as too many people are
21 confused by the weird C language otherwise. I guess the next thing
22 I get told is that the "..." ellipses in the examples don't compile
23 with their C compiler.
24
25 3.48 Thu Oct 30 09:02:37 CET 2008
26 - further optimise away the EPOLL_CTL_ADD/MOD combo in the epoll
27 backend by assuming the kernel event mask hasn't changed if
28 ADD fails with EEXIST.
29 - work around spurious event notification bugs in epoll by using
30 a 32-bit generation counter. recreate kernel state if we receive
31 spurious notifications or unwanted events. this is very costly,
32 but I didn't come up with this horrible design.
33 - use memset to initialise most arrays now and do away with the
34 init functions.
35 - expand time-out strategies into a "Be smart about timeouts" section.
36 - drop the "struct" from all ev_watcher declarations in the
37 documentation and did other clarifications (yeah, it was a mistake
38 to have a struct AND a function called ev_loop).
39 - fix a bug where ev_default would not initialise the default
40 loop again after it was destroyed with ev_default_destroy.
41 - rename syserr to ev_syserr to avoid name clashes when embedding,
42 do similar changes for event.c.
43
44 3.45 Tue Oct 21 21:59:26 CEST 2008
45 - disable inotify usage on linux <2.6.25, as it is broken
46 (reported by Yoann Vandoorselaere).
47 - ev_stat errornously would try to add inotify watchers
48 even when inotify wasn't available (this should only
49 have a performance impact).
50 - ev_once now passes both timeout and io to the callback if both
51 occur concurrently, instead of giving timeouts precedence.
52 - disable EV_USE_INOTIFY when sys/inotify.h is too old.
53
54 3.44 Mon Sep 29 05:18:39 CEST 2008
55 - embed watchers now automatically invoke ev_loop_fork on the
56 embedded loop when the parent loop forks.
57 - new function: ev_now_update (loop).
58 - verify_watcher was not marked static.
59 - improve the "associating..." manpage section.
60 - documentation tweaks here and there.
61
62 3.43 Sun Jul 6 05:34:41 CEST 2008
63 - include more include files on windows to get struct _stati64
64 (reported by Chris Hulbert, but doesn't quite fix his issue).
65 - add missing #include <io.h> in ev.c on windows (reported by
66 Matt Tolton).
67
68 3.42 Tue Jun 17 12:12:07 CEST 2008
69 - work around yet another windows bug: FD_SET actually adds fd's
70 multiple times to the fd_*SET*, despite official MSN docs claiming
71 otherwise. Reported and well-analysed by Matt Tolton.
72 - define NFDBITS to 0 when EV_SELECT_IS_WINSOCKET to make it compile
73 (reported any analysed by Chris Hulbert).
74 - fix a bug in ev_ebadf (this function is only used to catch
75 programming errors in the libev user). reported by Matt Tolton.
76 - fix a bug in fd_intern on win32 (could lead to compile errors
77 under some circumstances, but would work correctly if it compiles).
78 reported by Matt Tolton.
79 - (try to) work around missing lstat on windows.
80 - pass in the write fd set as except fd set under windows. windows
81 is so uncontrollably lame that it requires this. this means that
82 switching off oobinline is not supported (but tcp/ip doesn't
83 have oob, so that would be stupid anyways.
84 - use posix module symbol to auto-detect monotonic clock presence
85 and some other default values.
86
87 3.41 Fri May 23 18:42:54 CEST 2008
88 - work around an obscure bug in winsocket select: if you
89 provide only empty fd sets then select returns WSAEINVAL. how sucky.
90 - improve timer scheduling stability and reduce use of time_epsilon.
91 - use 1-based 2-heap for EV_MINIMAL, simplifies code, reduces
92 codesize and makes for better cache-efficiency.
93 - use 3-based 4-heap for !EV_MINIMAL. this makes better use
94 of cpu cache lines and gives better growth behaviour than
95 2-based heaps.
96 - cache timestamp within heap for !EV_MINIMAL, to avoid random
97 memory accesses.
98 - document/add EV_USE_4HEAP and EV_HEAP_CACHE_AT.
99 - fix a potential aliasing issue in ev_timer_again.
100 - add/document ev_periodic_at, retract direct access to ->at.
101 - improve ev_stat docs.
102 - add portability requirements section.
103 - fix manpage headers etc.
104 - normalise WSA error codes to lower range on windows.
105 - add consistency check code that can be called automatically
106 or on demand to check for internal structures (ev_loop_verify).
107
108 3.31 Wed Apr 16 20:45:04 CEST 2008
109 - added last minute fix for ev_poll.c by Brandon Black.
110
111 3.3 Wed Apr 16 19:04:10 CEST 2008
112 - event_base_loopexit should return 0 on success
113 (W.C.A. Wijngaards).
114 - added linux eventfd support.
115 - try to autodetect epoll and inotify support
116 by libc header version if not using autoconf.
117 - new symbols: EV_DEFAULT_UC and EV_DEFAULT_UC_.
118 - declare functions defined in ev.h as inline if
119 C99 or gcc are available.
120 - enable inlining with gcc versions 2 and 3.
121 - work around broken poll implementations potentially
122 not clearing revents field in ev_poll (Brandon Black)
123 (no such systems are known at this time).
124 - work around a bug in realloc on openbsd and darwin,
125 also makes the errornous valgrind complaints
126 go away (noted by various people).
127 - fix ev_async_pending, add c++ wrapper for ev_async
128 (based on patch sent by Johannes Deisenhofer.
129 - add sensible set method to ev::embed.
130 - made integer constants type int in ev.h.
131
132 3.2 Wed Apr 2 17:11:19 CEST 2008
133 - fix a 64 bit overflow issue in the select backend,
134 by using fd_mask instead of int for the mask.
135 - rename internal sighandler to avoid clash with very old perls.
136 - entering ev_loop will not clear the ONESHOT or NONBLOCKING
137 flags of any outer loops anymore.
138 - add ev_async_pending.
139
140 3.1 Thu Mar 13 13:45:22 CET 2008
141 - implement ev_async watchers.
142 - only initialise signal pipe on demand.
143 - make use of sig_atomic_t configurable.
144 - improved documentation.
145
146 3.0 Mon Jan 28 13:14:47 CET 2008
147 - API/ABI bump to version 3.0.
148 - ev++.h includes "ev.h" by default now, not <ev.h>.
149 - slightly improved documentation.
150 - speed up signal detection after a fork.
151 - only optionally return trace status changed in ev_child
152 watchers.
153 - experimental (and undocumented) loop wrappers for ev++.h.
154
155 2.01 Tue Dec 25 08:04:41 CET 2007
156 - separate Changes file.
157 - fix ev_path_set => ev_stat_set typo.
158 - remove event_compat.h from the libev tarball.
159 - change how include files are found.
160 - doc updates.
161 - update licenses, explicitly allow for GPL relicensing.
162
163 2.0 Sat Dec 22 17:47:03 CET 2007
164 - new ev_sleep, ev_set_(io|timeout)_collect_interval.
165 - removed epoll from embeddable fd set.
166 - fix embed watchers.
167 - renamed ev_embed.loop to other.
168 - added exported Symbol tables.
169 - undefine member wrapper macros at the end of ev.c.
170 - respect EV_H in ev++.h.
171
172 1.86 Tue Dec 18 02:36:57 CET 2007
173 - fix memleak on loop destroy (not relevant for perl).
174
175 1.85 Fri Dec 14 20:32:40 CET 2007
176 - fix some aliasing issues w.r.t. timers and periodics
177 (not relevant for perl).
178
179 (for historic versions refer to EV/Changes, found in the Perl interface)
180
181 0.1 Wed Oct 31 21:31:48 CET 2007
182 - original version; hacked together in <24h.
183