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Comparing libev/Changes (file contents):
Revision 1.258 by root, Wed Apr 11 10:51:11 2012 UTC vs.
Revision 1.342 by root, Thu Jul 11 05:42:41 2019 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: revisit 59.x timer in the light of modern powersaving
4TODO: EV_STANDALONE == NO_HASSEL (do not use clock_gettime in ev_standalone) 4TODO: maybe use timerfd to detect time jumps on linux
5TODO: document EV_TSTAMP_T
6 - linuxaio backend resulted in random memory corruption
7 when loop is forked.
8 - linuxaio backend might have tried to cancel an iocb
9 multiple times (was unable to trigger this).
10 - linuxaio backend now employs a generation counter to
11 avoid handling spurious events from cancelled requests.
12 - io_cancel can return EINTR, deal with it. also, assume
13 io_submit also returns EINTR.
14 - fix some other minor bugs in linuxaio backend.
15 - ev_tstamp type can now be overriden by defining EV_TSTAMP_T.
16 - cleanup: replace expect_true/false and noinline by their
17 libecb counterparts.
18 - move syscall infrastructure from ev_linuxaio.c to ev.c.
19 - prepare io_uring integration.
20 - tweak ev_floor.
21 - epoll, poll, win32 Sleep and other places that use millisecond
22 reslution now all try to round up times.
5 23
6TODO: document WSA_EV_USE_SOCKET in win32 part 244.27 Thu Jun 27 22:43:44 CEST 2019
7TODO: ^ OR use WSASend/WSARecv on the handle, which always works 25 - linux aio backend almost completely rewritten to work around its
8TODO: throw() for most ev.h functions 26 limitations.
27 - linux aio backend now requires linux 4.19+.
28 - epoll backend now mandatory for linux aio backend.
29 - fail assertions more aggressively on invalid fd's detected
30 in the event loop, do not just silently fd_kill in case of
31 user error.
32 - ev_io_start/ev_io_stop now verify the watcher fd using
33 a syscall when EV_VERIFY is 2 or higher.
34
354.26 (EV only)
36 - update to libecb 0x00010006.
37 - new experimental linux aio backend (linux 4.18+).
38 - removed redundant 0-ptr check in ev_once.
39 - updated/extended ev_set_allocator documentation.
40 - replaced EMPTY2 macro by array_needsize_noinit.
41 - minor code cleanups.
42 - epoll backend now uses epoll_create1 also after fork.
43
444.25 Fri Dec 21 07:49:20 CET 2018
45 - INCOMPATIBLE CHANGE: EV_THROW was renamed to EV_NOEXCEPT
46 (EV_THROW still provided) and now uses noexcept on C++11 or newer.
47 - move the darwin select workaround higher in ev.c, as newer versions of
48 darwin managed to break their broken select even more.
49 - ANDROID => __ANDROID__ (reported by enh@google.com).
50 - disable epoll_create1 on android because it has broken header files
51 and google is unwilling to fix them (reported by enh@google.com).
52 - avoid a minor compilation warning on win32.
53 - c++: remove deprecated dynamic throw() specifications.
54 - c++: improve the (unsupported) bad_loop exception class.
55 - backport perl ev_periodic example to C, untested.
56 - update libecb, biggets change is to include a memory fence
57 in ECB_MEMORY_FENCE_RELEASE on x86/amd64.
58 - minor autoconf/automake modernisation.
59
604.24 Wed Dec 28 05:19:55 CET 2016
61 - bump version to 4.24, as the release tarball inexplicably
62 didn't have the right version in ev.h, even though the cvs-tagged
63 version did have the right one (reported by Ales Teska).
64
654.23 Wed Nov 16 18:23:41 CET 2016
66 - move some declarations at the beginning to help certain retarded
67 microsoft compilers, even though their documentation claims
68 otherwise (reported by Ruslan Osmanov).
69
704.22 Sun Dec 20 22:11:50 CET 2015
71 - when epoll detects unremovable fds in the fd set, rebuild
72 only the epoll descriptor, not the signal pipe, to avoid
73 SIGPIPE in ev_async_send. This doesn't solve it on fork,
74 so document what needs to be done in ev_loop_fork
75 (analyzed by Benjamin Mahler).
76 - remove superfluous sys/timeb.h include on win32
77 (analyzed by Jason Madden).
78 - updated libecb.
79
804.20 Sat Jun 20 13:01:43 CEST 2015
81 - prefer noexcept over throw () with C++ 11.
82 - update ecb.h due to incompatibilities with c11.
83 - fix a potential aliasing issue when reading and writing
84 watcher callbacks.
85
864.19 Thu Sep 25 08:18:25 CEST 2014
87 - ev.h wasn't valid C++ anymore, which tripped compilers other than
88 clang, msvc or gcc (analyzed by Raphael 'kena' Poss). Unfortunately,
89 C++ doesn't support typedefs for function pointers fully, so the affected
90 declarations have to spell out the types each time.
91 - when not using autoconf, tighten the check for clock_gettime and related
92 functionality.
93
944.18 Fri Sep 5 17:55:26 CEST 2014
95 - events on files were not always generated properly with the
96 epoll backend (testcase by Assaf Inbal).
97 - mark event pipe fd as cloexec after a fork (analyzed by Sami Farin).
98 - (ecb) support m68k, m88k and sh (patch by Miod Vallat).
99 - use a reasonable fallback for EV_NSIG instead of erroring out
100 when we can't detect the signal set size.
101 - in the absence of autoconf, do not use the clock syscall
102 on glibc >= 2.17 (avoids the syscall AND -lrt on systems
103 doing clock_gettime in userspace).
104 - ensure extern "C" function pointers are used for externally-visible
105 loop callbacks (not watcher callbacks yet).
106 - (ecb) work around memory barriers and volatile apparently both being
107 broken in visual studio 2008 and later (analysed and patch by Nicolas Noble).
108
1094.15 Fri Mar 1 12:04:50 CET 2013
110 - destroying a non-default loop would stop the global waitpid
111 watcher (Denis Bilenko).
112 - queueing pending watchers of higher priority from a watcher now invokes
113 them in a timely fashion (reported by Denis Bilenko).
114 - add throw() to all libev functions that cannot throw exceptions, for
115 further code size decrease when compiling for C++.
116 - add throw () to callbacks that must not throw exceptions (allocator,
117 syserr, loop acquire/release, periodic reschedule cbs).
9 - fix event_base_loop return code, add event_get_callback, event_base_new, 118 - fix event_base_loop return code, add event_get_callback, event_base_new,
10 event_base_get_method calls to improve libevent 1.x emulation and add 119 event_base_get_method calls to improve libevent 1.x emulation and add
11 some libevent 2.x funcitonality (based on a patch by Jeff Davey). 120 some libevent 2.x functionality (based on a patch by Jeff Davey).
121 - add more memory fences to fix a bug reported by Jeff Davey. Better
122 be overfenced than underprotected.
12 - ev_run now returns a boolean status (true meaning watchers are 123 - ev_run now returns a boolean status (true meaning watchers are
13 still active). 124 still active).
14 - ev_once: undef EV_ERROR in ev_kqueue.c, to avoid clashing with 125 - ev_once: undef EV_ERROR in ev_kqueue.c, to avoid clashing with
15 libev's EV_ERROR (reported by 191919). 126 libev's EV_ERROR (reported by 191919).
16 - (ecb) add memory fence support for xlC (Darin McBride). 127 - (ecb) add memory fence support for xlC (Darin McBride).
17 - (ecb) add memory fence support for gcc-mips (Anton Kirilov). 128 - (ecb) add memory fence support for gcc-mips (Anton Kirilov).
129 - (ecb) add memory fence support for gcc-alpha (Christian Weisgerber).
18 - work around some kernels losing file descriptors by leaking 130 - work around some kernels losing file descriptors by leaking
19 the kqueue descriptor in the child. 131 the kqueue descriptor in the child.
132 - work around linux inotify not reporting IN_ATTRIB changes for directories
133 in many cases.
134 - include sys/syscall.h instead of plain syscall.h.
135 - check for io watcher loops in ev_verify, check for the most
136 common reported usage bug in ev_io_start.
137 - choose socket vs. WSASocket at compiletime using EV_USE_WSASOCKET.
138 - always use WSASend/WSARecv directly on windows, hoping that this
139 works in all cases (unlike read/write/send/recv...).
140 - try to detect signals around a fork faster (test program by
141 Denis Bilenko).
142 - work around recent glibc versions that leak memory in realloc.
143 - rename ev::embed::set to ev::embed::set_embed to avoid clashing
144 the watcher base set (loop) method.
145 - rewrite the async/signal pipe logic to always keep a valid fd, which
146 simplifies (and hopefully correctifies :) the race checking
147 on fork, at the cost of one extra fd.
148 - add fat, msdos, jffs2, ramfs, ntfs and btrfs to the list of
149 inotify-supporting filesystems.
150 - move orig_CFLAGS assignment to after AC_INIT, as newer autoconf
151 versions ignore it before
152 (https://bugzilla.redhat.com/show_bug.cgi?id=908096).
153 - add some untested android support.
154 - enum expressions must be of type int (reported by Juan Pablo L).
20 155
214.11 Sat Feb 4 19:52:39 CET 2012 1564.11 Sat Feb 4 19:52:39 CET 2012
22 - INCOMPATIBLE CHANGE: ev_timer_again now clears the pending status, as 157 - INCOMPATIBLE CHANGE: ev_timer_again now clears the pending status, as
23 was documented already, but not implemented in the repeating case. 158 was documented already, but not implemented in the repeating case.
24 - new compiletime symbols: EV_NO_SMP and EV_NO_THREADS. 159 - new compiletime symbols: EV_NO_SMP and EV_NO_THREADS.
… …
208 reinitialising the default loop actually works (patch by 343 reinitialising the default loop actually works (patch by
209 Malek Hadj-Ali). 344 Malek Hadj-Ali).
210 - implement ev_suspend and ev_resume. 345 - implement ev_suspend and ev_resume.
211 - new EV_CUSTOM revents flag for use by applications. 346 - new EV_CUSTOM revents flag for use by applications.
212 - add documentation section about priorities. 347 - add documentation section about priorities.
213 - add a glossary to the dcoumentation. 348 - add a glossary to the documentation.
214 - extend the ev_fork description slightly. 349 - extend the ev_fork description slightly.
215 - optimize a jump out of call_pending. 350 - optimize a jump out of call_pending.
216 351
2173.53 Sun Feb 15 02:38:20 CET 2009 3523.53 Sun Feb 15 02:38:20 CET 2009
218 - fix a bug in event pipe creation on win32 that would cause a 353 - fix a bug in event pipe creation on win32 that would cause a

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