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Comparing libev/Changes (file contents):
Revision 1.267 by root, Sun May 6 13:42:10 2012 UTC vs.
Revision 1.344 by root, Tue Nov 19 13:09:00 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
5 6
6TODO: document WSA_EV_USE_SOCKET in win32 part 74.28 (EV only)
7TODO: ^ OR use WSASend/WSARecv on the handle, which always works 8 - linuxaio backend resulted in random memory corruption
8TODO: faq, process a thing in each iteration 9 when loop is forked.
10 - linuxaio backend might have tried to cancel an iocb
11 multiple times (was unable to trigger this).
12 - linuxaio backend now employs a generation counter to
13 avoid handling spurious events from cancelled requests.
14 - io_cancel can return EINTR, deal with it. also, assume
15 io_submit also returns EINTR.
16 - fix some other minor bugs in linuxaio backend.
17 - ev_tstamp type can now be overriden by defining EV_TSTAMP_T.
18 - cleanup: replace expect_true/false and noinline by their
19 libecb counterparts.
20 - move syscall infrastructure from ev_linuxaio.c to ev.c.
21 - prepare io_uring integration.
22 - tweak ev_floor.
23 - epoll, poll, win32 Sleep and other places that use millisecond
24 reslution now all try to round up times.
25 - solaris port backend didn't compile.
26 - abstract time constants into their macros, for more flexibility.
27
284.27 Thu Jun 27 22:43:44 CEST 2019
29 - linux aio backend almost completely rewritten to work around its
30 limitations.
31 - linux aio backend now requires linux 4.19+.
32 - epoll backend now mandatory for linux aio backend.
33 - fail assertions more aggressively on invalid fd's detected
34 in the event loop, do not just silently fd_kill in case of
35 user error.
36 - ev_io_start/ev_io_stop now verify the watcher fd using
37 a syscall when EV_VERIFY is 2 or higher.
38
394.26 (EV only)
40 - update to libecb 0x00010006.
41 - new experimental linux aio backend (linux 4.18+).
42 - removed redundant 0-ptr check in ev_once.
43 - updated/extended ev_set_allocator documentation.
44 - replaced EMPTY2 macro by array_needsize_noinit.
45 - minor code cleanups.
46 - epoll backend now uses epoll_create1 also after fork.
47
484.25 Fri Dec 21 07:49:20 CET 2018
49 - INCOMPATIBLE CHANGE: EV_THROW was renamed to EV_NOEXCEPT
50 (EV_THROW still provided) and now uses noexcept on C++11 or newer.
51 - move the darwin select workaround higher in ev.c, as newer versions of
52 darwin managed to break their broken select even more.
53 - ANDROID => __ANDROID__ (reported by enh@google.com).
54 - disable epoll_create1 on android because it has broken header files
55 and google is unwilling to fix them (reported by enh@google.com).
56 - avoid a minor compilation warning on win32.
57 - c++: remove deprecated dynamic throw() specifications.
58 - c++: improve the (unsupported) bad_loop exception class.
59 - backport perl ev_periodic example to C, untested.
60 - update libecb, biggets change is to include a memory fence
61 in ECB_MEMORY_FENCE_RELEASE on x86/amd64.
62 - minor autoconf/automake modernisation.
63
644.24 Wed Dec 28 05:19:55 CET 2016
65 - bump version to 4.24, as the release tarball inexplicably
66 didn't have the right version in ev.h, even though the cvs-tagged
67 version did have the right one (reported by Ales Teska).
68
694.23 Wed Nov 16 18:23:41 CET 2016
70 - move some declarations at the beginning to help certain retarded
71 microsoft compilers, even though their documentation claims
72 otherwise (reported by Ruslan Osmanov).
73
744.22 Sun Dec 20 22:11:50 CET 2015
75 - when epoll detects unremovable fds in the fd set, rebuild
76 only the epoll descriptor, not the signal pipe, to avoid
77 SIGPIPE in ev_async_send. This doesn't solve it on fork,
78 so document what needs to be done in ev_loop_fork
79 (analyzed by Benjamin Mahler).
80 - remove superfluous sys/timeb.h include on win32
81 (analyzed by Jason Madden).
82 - updated libecb.
83
844.20 Sat Jun 20 13:01:43 CEST 2015
85 - prefer noexcept over throw () with C++ 11.
86 - update ecb.h due to incompatibilities with c11.
87 - fix a potential aliasing issue when reading and writing
88 watcher callbacks.
89
904.19 Thu Sep 25 08:18:25 CEST 2014
91 - ev.h wasn't valid C++ anymore, which tripped compilers other than
92 clang, msvc or gcc (analyzed by Raphael 'kena' Poss). Unfortunately,
93 C++ doesn't support typedefs for function pointers fully, so the affected
94 declarations have to spell out the types each time.
95 - when not using autoconf, tighten the check for clock_gettime and related
96 functionality.
97
984.18 Fri Sep 5 17:55:26 CEST 2014
99 - events on files were not always generated properly with the
100 epoll backend (testcase by Assaf Inbal).
101 - mark event pipe fd as cloexec after a fork (analyzed by Sami Farin).
102 - (ecb) support m68k, m88k and sh (patch by Miod Vallat).
103 - use a reasonable fallback for EV_NSIG instead of erroring out
104 when we can't detect the signal set size.
105 - in the absence of autoconf, do not use the clock syscall
106 on glibc >= 2.17 (avoids the syscall AND -lrt on systems
107 doing clock_gettime in userspace).
108 - ensure extern "C" function pointers are used for externally-visible
109 loop callbacks (not watcher callbacks yet).
110 - (ecb) work around memory barriers and volatile apparently both being
111 broken in visual studio 2008 and later (analysed and patch by Nicolas Noble).
112
1134.15 Fri Mar 1 12:04:50 CET 2013
114 - destroying a non-default loop would stop the global waitpid
115 watcher (Denis Bilenko).
9 - queueing pending watchers of higher priority from a watcher now invokes 116 - queueing pending watchers of higher priority from a watcher now invokes
10 them in a timely fashion (reported by Denis Bilenko). 117 them in a timely fashion (reported by Denis Bilenko).
11 - add throw() to all libev functions that cannot throw exceptions, for 118 - add throw() to all libev functions that cannot throw exceptions, for
12 further code size decrease when compiling for C++. 119 further code size decrease when compiling for C++.
13 - add throw () to callbacks that must not throw exceptions (allocator, 120 - add throw () to callbacks that must not throw exceptions (allocator,
14 syserr, loop acquire/release, periodic reschedule cbs). 121 syserr, loop acquire/release, periodic reschedule cbs).
15 - fix event_base_loop return code, add event_get_callback, event_base_new, 122 - fix event_base_loop return code, add event_get_callback, event_base_new,
16 event_base_get_method calls to improve libevent 1.x emulation and add 123 event_base_get_method calls to improve libevent 1.x emulation and add
17 some libevent 2.x funcitonality (based on a patch by Jeff Davey). 124 some libevent 2.x functionality (based on a patch by Jeff Davey).
18 - add more memory fences to fix a bug reported by Jeff Davey. Better 125 - add more memory fences to fix a bug reported by Jeff Davey. Better
19 be overfenced than underprotected. 126 be overfenced than underprotected.
20 - ev_run now returns a boolean status (true meaning watchers are 127 - ev_run now returns a boolean status (true meaning watchers are
21 still active). 128 still active).
22 - ev_once: undef EV_ERROR in ev_kqueue.c, to avoid clashing with 129 - ev_once: undef EV_ERROR in ev_kqueue.c, to avoid clashing with
… …
24 - (ecb) add memory fence support for xlC (Darin McBride). 131 - (ecb) add memory fence support for xlC (Darin McBride).
25 - (ecb) add memory fence support for gcc-mips (Anton Kirilov). 132 - (ecb) add memory fence support for gcc-mips (Anton Kirilov).
26 - (ecb) add memory fence support for gcc-alpha (Christian Weisgerber). 133 - (ecb) add memory fence support for gcc-alpha (Christian Weisgerber).
27 - work around some kernels losing file descriptors by leaking 134 - work around some kernels losing file descriptors by leaking
28 the kqueue descriptor in the child. 135 the kqueue descriptor in the child.
136 - work around linux inotify not reporting IN_ATTRIB changes for directories
137 in many cases.
29 - include sys/syscall.h instead of plain syscall.h. 138 - include sys/syscall.h instead of plain syscall.h.
139 - check for io watcher loops in ev_verify, check for the most
140 common reported usage bug in ev_io_start.
141 - choose socket vs. WSASocket at compiletime using EV_USE_WSASOCKET.
142 - always use WSASend/WSARecv directly on windows, hoping that this
143 works in all cases (unlike read/write/send/recv...).
144 - try to detect signals around a fork faster (test program by
145 Denis Bilenko).
146 - work around recent glibc versions that leak memory in realloc.
147 - rename ev::embed::set to ev::embed::set_embed to avoid clashing
148 the watcher base set (loop) method.
149 - rewrite the async/signal pipe logic to always keep a valid fd, which
150 simplifies (and hopefully correctifies :) the race checking
151 on fork, at the cost of one extra fd.
152 - add fat, msdos, jffs2, ramfs, ntfs and btrfs to the list of
153 inotify-supporting filesystems.
154 - move orig_CFLAGS assignment to after AC_INIT, as newer autoconf
155 versions ignore it before
156 (https://bugzilla.redhat.com/show_bug.cgi?id=908096).
157 - add some untested android support.
158 - enum expressions must be of type int (reported by Juan Pablo L).
30 159
314.11 Sat Feb 4 19:52:39 CET 2012 1604.11 Sat Feb 4 19:52:39 CET 2012
32 - INCOMPATIBLE CHANGE: ev_timer_again now clears the pending status, as 161 - INCOMPATIBLE CHANGE: ev_timer_again now clears the pending status, as
33 was documented already, but not implemented in the repeating case. 162 was documented already, but not implemented in the repeating case.
34 - new compiletime symbols: EV_NO_SMP and EV_NO_THREADS. 163 - new compiletime symbols: EV_NO_SMP and EV_NO_THREADS.
… …
218 reinitialising the default loop actually works (patch by 347 reinitialising the default loop actually works (patch by
219 Malek Hadj-Ali). 348 Malek Hadj-Ali).
220 - implement ev_suspend and ev_resume. 349 - implement ev_suspend and ev_resume.
221 - new EV_CUSTOM revents flag for use by applications. 350 - new EV_CUSTOM revents flag for use by applications.
222 - add documentation section about priorities. 351 - add documentation section about priorities.
223 - add a glossary to the dcoumentation. 352 - add a glossary to the documentation.
224 - extend the ev_fork description slightly. 353 - extend the ev_fork description slightly.
225 - optimize a jump out of call_pending. 354 - optimize a jump out of call_pending.
226 355
2273.53 Sun Feb 15 02:38:20 CET 2009 3563.53 Sun Feb 15 02:38:20 CET 2009
228 - fix a bug in event pipe creation on win32 that would cause a 357 - fix a bug in event pipe creation on win32 that would cause a

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