ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/libev/Changes
(Generate patch)

Comparing libev/Changes (file contents):
Revision 1.270 by root, Sun May 6 19:47:38 2012 UTC vs.
Revision 1.359 by root, Wed Jan 22 12:15:52 2020 UTC

1Revision history for libev, a high-performance and full-featured event loop. 1Revision history for libev, a high-performance and full-featured event loop.
2 2
3TODO: ev_loop_wakeup 3TODO: for next ABI/API change, consider moving EV__IOFDSSET into io->fd instead and provide a getter.
4TODO: EV_STANDALONE == NO_HASSEL (do not use clock_gettime in ev_standalone) 4TODO: document EV_TSTAMP_T
5TODO: faq, process a thing in each iteration
6TODO: dbeugging tips, ev_verify, ev_init twice
7 5
6TODO: maybe allow events = 0 for io watchers
7 - the 4.31 timerfd code wrongly changes the priority of the signal
8 fd watcher, which is usually harmless unless signal fds are
9 also used (found via cpan tester service).
10 - the documentation wrongly claimed that user may modify fd and events
11 members in io watchers when the wqatcher was stopped
12 (found by b_jonas).
13 - new ev_io_modify mutator which changes only the events member,
14 which can be faster.
15 - do not wake up every minute when timerfd is used to detect timejumps.
16 - support a lot more "uncommon" compile time configurations,
17 such as ev_embed enabled but ev_timer disabled.
18 - the linux aio backend is no longer compiled in by default.
19 - update to libecb version 0x00010008.
20
214.31 Fri Dec 20 21:58:29 CET 2019
22 - handle backends with minimum wait time a bit better by not
23 waiting in the presence of already-expired timers
24 (behaviour reported by Felipe Gasper).
25 - new feature: use timerfd to detect timejumps quickly,
26 can be disabled with the new EVFLAG_NOTIMERFD loop flag.
27 - document EV_USE_SIGNALFD feature macro.
28
294.30 (EV only)
30 - change non-autoconf test for __kernel_rwf_t by testing
31 LINUX_VERSION_CODE, the most direct test I could find.
32 - fix a bug in the io_uring backend that polled the wrong
33 backend fd, causing it to not work in many cases.
34
354.29 (EV only)
36 - add io uring autoconf and non-autoconf detection.
37 - disable io_uring when some header files are too old.
38
394.28 (EV only)
40 - linuxaio backend resulted in random memory corruption
41 when loop is forked.
42 - linuxaio backend might have tried to cancel an iocb
43 multiple times (was unable to trigger this).
44 - linuxaio backend now employs a generation counter to
45 avoid handling spurious events from cancelled requests.
46 - io_cancel can return EINTR, deal with it. also, assume
47 io_submit also returns EINTR.
48 - fix some other minor bugs in linuxaio backend.
49 - ev_tstamp type can now be overriden by defining EV_TSTAMP_T.
50 - cleanup: replace expect_true/false and noinline by their
51 libecb counterparts.
52 - move syscall infrastructure from ev_linuxaio.c to ev.c.
53 - prepare io_uring integration.
54 - tweak ev_floor.
55 - epoll, poll, win32 Sleep and other places that use millisecond
56 reslution now all try to round up times.
57 - solaris port backend didn't compile.
58 - abstract time constants into their macros, for more flexibility.
59
604.27 Thu Jun 27 22:43:44 CEST 2019
61 - linux aio backend almost completely rewritten to work around its
62 limitations.
63 - linux aio backend now requires linux 4.19+.
64 - epoll backend now mandatory for linux aio backend.
65 - fail assertions more aggressively on invalid fd's detected
66 in the event loop, do not just silently fd_kill in case of
67 user error.
68 - ev_io_start/ev_io_stop now verify the watcher fd using
69 a syscall when EV_VERIFY is 2 or higher.
70
714.26 (EV only)
72 - update to libecb 0x00010006.
73 - new experimental linux aio backend (linux 4.18+).
74 - removed redundant 0-ptr check in ev_once.
75 - updated/extended ev_set_allocator documentation.
76 - replaced EMPTY2 macro by array_needsize_noinit.
77 - minor code cleanups.
78 - epoll backend now uses epoll_create1 also after fork.
79
804.25 Fri Dec 21 07:49:20 CET 2018
81 - INCOMPATIBLE CHANGE: EV_THROW was renamed to EV_NOEXCEPT
82 (EV_THROW still provided) and now uses noexcept on C++11 or newer.
83 - move the darwin select workaround higher in ev.c, as newer versions of
84 darwin managed to break their broken select even more.
85 - ANDROID => __ANDROID__ (reported by enh@google.com).
86 - disable epoll_create1 on android because it has broken header files
87 and google is unwilling to fix them (reported by enh@google.com).
88 - avoid a minor compilation warning on win32.
89 - c++: remove deprecated dynamic throw() specifications.
90 - c++: improve the (unsupported) bad_loop exception class.
91 - backport perl ev_periodic example to C, untested.
92 - update libecb, biggets change is to include a memory fence
93 in ECB_MEMORY_FENCE_RELEASE on x86/amd64.
94 - minor autoconf/automake modernisation.
95
964.24 Wed Dec 28 05:19:55 CET 2016
97 - bump version to 4.24, as the release tarball inexplicably
98 didn't have the right version in ev.h, even though the cvs-tagged
99 version did have the right one (reported by Ales Teska).
100
1014.23 Wed Nov 16 18:23:41 CET 2016
102 - move some declarations at the beginning to help certain retarded
103 microsoft compilers, even though their documentation claims
104 otherwise (reported by Ruslan Osmanov).
105
1064.22 Sun Dec 20 22:11:50 CET 2015
107 - when epoll detects unremovable fds in the fd set, rebuild
108 only the epoll descriptor, not the signal pipe, to avoid
109 SIGPIPE in ev_async_send. This doesn't solve it on fork,
110 so document what needs to be done in ev_loop_fork
111 (analyzed by Benjamin Mahler).
112 - remove superfluous sys/timeb.h include on win32
113 (analyzed by Jason Madden).
114 - updated libecb.
115
1164.20 Sat Jun 20 13:01:43 CEST 2015
117 - prefer noexcept over throw () with C++ 11.
118 - update ecb.h due to incompatibilities with c11.
119 - fix a potential aliasing issue when reading and writing
120 watcher callbacks.
121
1224.19 Thu Sep 25 08:18:25 CEST 2014
123 - ev.h wasn't valid C++ anymore, which tripped compilers other than
124 clang, msvc or gcc (analyzed by Raphael 'kena' Poss). Unfortunately,
125 C++ doesn't support typedefs for function pointers fully, so the affected
126 declarations have to spell out the types each time.
127 - when not using autoconf, tighten the check for clock_gettime and related
128 functionality.
129
1304.18 Fri Sep 5 17:55:26 CEST 2014
131 - events on files were not always generated properly with the
132 epoll backend (testcase by Assaf Inbal).
133 - mark event pipe fd as cloexec after a fork (analyzed by Sami Farin).
134 - (ecb) support m68k, m88k and sh (patch by Miod Vallat).
135 - use a reasonable fallback for EV_NSIG instead of erroring out
136 when we can't detect the signal set size.
137 - in the absence of autoconf, do not use the clock syscall
138 on glibc >= 2.17 (avoids the syscall AND -lrt on systems
139 doing clock_gettime in userspace).
140 - ensure extern "C" function pointers are used for externally-visible
141 loop callbacks (not watcher callbacks yet).
142 - (ecb) work around memory barriers and volatile apparently both being
143 broken in visual studio 2008 and later (analysed and patch by Nicolas Noble).
144
1454.15 Fri Mar 1 12:04:50 CET 2013
146 - destroying a non-default loop would stop the global waitpid
147 watcher (Denis Bilenko).
8 - queueing pending watchers of higher priority from a watcher now invokes 148 - queueing pending watchers of higher priority from a watcher now invokes
9 them in a timely fashion (reported by Denis Bilenko). 149 them in a timely fashion (reported by Denis Bilenko).
10 - add throw() to all libev functions that cannot throw exceptions, for 150 - add throw() to all libev functions that cannot throw exceptions, for
11 further code size decrease when compiling for C++. 151 further code size decrease when compiling for C++.
12 - add throw () to callbacks that must not throw exceptions (allocator, 152 - add throw () to callbacks that must not throw exceptions (allocator,
13 syserr, loop acquire/release, periodic reschedule cbs). 153 syserr, loop acquire/release, periodic reschedule cbs).
14 - fix event_base_loop return code, add event_get_callback, event_base_new, 154 - fix event_base_loop return code, add event_get_callback, event_base_new,
15 event_base_get_method calls to improve libevent 1.x emulation and add 155 event_base_get_method calls to improve libevent 1.x emulation and add
16 some libevent 2.x funcitonality (based on a patch by Jeff Davey). 156 some libevent 2.x functionality (based on a patch by Jeff Davey).
17 - add more memory fences to fix a bug reported by Jeff Davey. Better 157 - add more memory fences to fix a bug reported by Jeff Davey. Better
18 be overfenced than underprotected. 158 be overfenced than underprotected.
19 - ev_run now returns a boolean status (true meaning watchers are 159 - ev_run now returns a boolean status (true meaning watchers are
20 still active). 160 still active).
21 - ev_once: undef EV_ERROR in ev_kqueue.c, to avoid clashing with 161 - ev_once: undef EV_ERROR in ev_kqueue.c, to avoid clashing with
… …
23 - (ecb) add memory fence support for xlC (Darin McBride). 163 - (ecb) add memory fence support for xlC (Darin McBride).
24 - (ecb) add memory fence support for gcc-mips (Anton Kirilov). 164 - (ecb) add memory fence support for gcc-mips (Anton Kirilov).
25 - (ecb) add memory fence support for gcc-alpha (Christian Weisgerber). 165 - (ecb) add memory fence support for gcc-alpha (Christian Weisgerber).
26 - work around some kernels losing file descriptors by leaking 166 - work around some kernels losing file descriptors by leaking
27 the kqueue descriptor in the child. 167 the kqueue descriptor in the child.
168 - work around linux inotify not reporting IN_ATTRIB changes for directories
169 in many cases.
28 - include sys/syscall.h instead of plain syscall.h. 170 - include sys/syscall.h instead of plain syscall.h.
29 - check for io watcher loops in ev_verify, check for the most 171 - check for io watcher loops in ev_verify, check for the most
30 common reported usage bug in ev_io_start. 172 common reported usage bug in ev_io_start.
31 - chose socket vs. WSASocket at compiletime using EV_USE_WSASOCKET. 173 - choose socket vs. WSASocket at compiletime using EV_USE_WSASOCKET.
32 - always use WSASend/WSARecv directly on windows, hoping that this 174 - always use WSASend/WSARecv directly on windows, hoping that this
33 works in all cases (unlike read/write/send/recv...). 175 works in all cases (unlike read/write/send/recv...).
176 - try to detect signals around a fork faster (test program by
177 Denis Bilenko).
178 - work around recent glibc versions that leak memory in realloc.
179 - rename ev::embed::set to ev::embed::set_embed to avoid clashing
180 the watcher base set (loop) method.
181 - rewrite the async/signal pipe logic to always keep a valid fd, which
182 simplifies (and hopefully correctifies :) the race checking
183 on fork, at the cost of one extra fd.
184 - add fat, msdos, jffs2, ramfs, ntfs and btrfs to the list of
185 inotify-supporting filesystems.
186 - move orig_CFLAGS assignment to after AC_INIT, as newer autoconf
187 versions ignore it before
188 (https://bugzilla.redhat.com/show_bug.cgi?id=908096).
189 - add some untested android support.
190 - enum expressions must be of type int (reported by Juan Pablo L).
34 191
354.11 Sat Feb 4 19:52:39 CET 2012 1924.11 Sat Feb 4 19:52:39 CET 2012
36 - INCOMPATIBLE CHANGE: ev_timer_again now clears the pending status, as 193 - INCOMPATIBLE CHANGE: ev_timer_again now clears the pending status, as
37 was documented already, but not implemented in the repeating case. 194 was documented already, but not implemented in the repeating case.
38 - new compiletime symbols: EV_NO_SMP and EV_NO_THREADS. 195 - new compiletime symbols: EV_NO_SMP and EV_NO_THREADS.
… …
222 reinitialising the default loop actually works (patch by 379 reinitialising the default loop actually works (patch by
223 Malek Hadj-Ali). 380 Malek Hadj-Ali).
224 - implement ev_suspend and ev_resume. 381 - implement ev_suspend and ev_resume.
225 - new EV_CUSTOM revents flag for use by applications. 382 - new EV_CUSTOM revents flag for use by applications.
226 - add documentation section about priorities. 383 - add documentation section about priorities.
227 - add a glossary to the dcoumentation. 384 - add a glossary to the documentation.
228 - extend the ev_fork description slightly. 385 - extend the ev_fork description slightly.
229 - optimize a jump out of call_pending. 386 - optimize a jump out of call_pending.
230 387
2313.53 Sun Feb 15 02:38:20 CET 2009 3883.53 Sun Feb 15 02:38:20 CET 2009
232 - fix a bug in event pipe creation on win32 that would cause a 389 - fix a bug in event pipe creation on win32 that would cause a

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines