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Comparing libev/Changes (file contents):
Revision 1.265 by root, Thu May 3 16:00:47 2012 UTC vs.
Revision 1.346 by root, Fri Nov 22 14:35:27 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 74.29 (EV only)
7TODO: ^ OR use WSASend/WSARecv on the handle, which always works 8 - add io uring autoconf and non-autoconf detection.
8TODO: assert on fd watcher linked list pointing to itself 9 - disable io_uring when some header files are too old.
9TODO: faq, process a thing in each iteration 10
10TODO: abuse idle watchers for their side effect 114.28 (EV only)
11TODO: abuse check watchers for their side effect 12 - linuxaio backend resulted in random memory corruption
13 when loop is forked.
14 - linuxaio backend might have tried to cancel an iocb
15 multiple times (was unable to trigger this).
16 - linuxaio backend now employs a generation counter to
17 avoid handling spurious events from cancelled requests.
18 - io_cancel can return EINTR, deal with it. also, assume
19 io_submit also returns EINTR.
20 - fix some other minor bugs in linuxaio backend.
21 - ev_tstamp type can now be overriden by defining EV_TSTAMP_T.
22 - cleanup: replace expect_true/false and noinline by their
23 libecb counterparts.
24 - move syscall infrastructure from ev_linuxaio.c to ev.c.
25 - prepare io_uring integration.
26 - tweak ev_floor.
27 - epoll, poll, win32 Sleep and other places that use millisecond
28 reslution now all try to round up times.
29 - solaris port backend didn't compile.
30 - abstract time constants into their macros, for more flexibility.
31
324.27 Thu Jun 27 22:43:44 CEST 2019
33 - linux aio backend almost completely rewritten to work around its
34 limitations.
35 - linux aio backend now requires linux 4.19+.
36 - epoll backend now mandatory for linux aio backend.
37 - fail assertions more aggressively on invalid fd's detected
38 in the event loop, do not just silently fd_kill in case of
39 user error.
40 - ev_io_start/ev_io_stop now verify the watcher fd using
41 a syscall when EV_VERIFY is 2 or higher.
42
434.26 (EV only)
44 - update to libecb 0x00010006.
45 - new experimental linux aio backend (linux 4.18+).
46 - removed redundant 0-ptr check in ev_once.
47 - updated/extended ev_set_allocator documentation.
48 - replaced EMPTY2 macro by array_needsize_noinit.
49 - minor code cleanups.
50 - epoll backend now uses epoll_create1 also after fork.
51
524.25 Fri Dec 21 07:49:20 CET 2018
53 - INCOMPATIBLE CHANGE: EV_THROW was renamed to EV_NOEXCEPT
54 (EV_THROW still provided) and now uses noexcept on C++11 or newer.
55 - move the darwin select workaround higher in ev.c, as newer versions of
56 darwin managed to break their broken select even more.
57 - ANDROID => __ANDROID__ (reported by enh@google.com).
58 - disable epoll_create1 on android because it has broken header files
59 and google is unwilling to fix them (reported by enh@google.com).
60 - avoid a minor compilation warning on win32.
61 - c++: remove deprecated dynamic throw() specifications.
62 - c++: improve the (unsupported) bad_loop exception class.
63 - backport perl ev_periodic example to C, untested.
64 - update libecb, biggets change is to include a memory fence
65 in ECB_MEMORY_FENCE_RELEASE on x86/amd64.
66 - minor autoconf/automake modernisation.
67
684.24 Wed Dec 28 05:19:55 CET 2016
69 - bump version to 4.24, as the release tarball inexplicably
70 didn't have the right version in ev.h, even though the cvs-tagged
71 version did have the right one (reported by Ales Teska).
72
734.23 Wed Nov 16 18:23:41 CET 2016
74 - move some declarations at the beginning to help certain retarded
75 microsoft compilers, even though their documentation claims
76 otherwise (reported by Ruslan Osmanov).
77
784.22 Sun Dec 20 22:11:50 CET 2015
79 - when epoll detects unremovable fds in the fd set, rebuild
80 only the epoll descriptor, not the signal pipe, to avoid
81 SIGPIPE in ev_async_send. This doesn't solve it on fork,
82 so document what needs to be done in ev_loop_fork
83 (analyzed by Benjamin Mahler).
84 - remove superfluous sys/timeb.h include on win32
85 (analyzed by Jason Madden).
86 - updated libecb.
87
884.20 Sat Jun 20 13:01:43 CEST 2015
89 - prefer noexcept over throw () with C++ 11.
90 - update ecb.h due to incompatibilities with c11.
91 - fix a potential aliasing issue when reading and writing
92 watcher callbacks.
93
944.19 Thu Sep 25 08:18:25 CEST 2014
95 - ev.h wasn't valid C++ anymore, which tripped compilers other than
96 clang, msvc or gcc (analyzed by Raphael 'kena' Poss). Unfortunately,
97 C++ doesn't support typedefs for function pointers fully, so the affected
98 declarations have to spell out the types each time.
99 - when not using autoconf, tighten the check for clock_gettime and related
100 functionality.
101
1024.18 Fri Sep 5 17:55:26 CEST 2014
103 - events on files were not always generated properly with the
104 epoll backend (testcase by Assaf Inbal).
105 - mark event pipe fd as cloexec after a fork (analyzed by Sami Farin).
106 - (ecb) support m68k, m88k and sh (patch by Miod Vallat).
107 - use a reasonable fallback for EV_NSIG instead of erroring out
108 when we can't detect the signal set size.
109 - in the absence of autoconf, do not use the clock syscall
110 on glibc >= 2.17 (avoids the syscall AND -lrt on systems
111 doing clock_gettime in userspace).
112 - ensure extern "C" function pointers are used for externally-visible
113 loop callbacks (not watcher callbacks yet).
114 - (ecb) work around memory barriers and volatile apparently both being
115 broken in visual studio 2008 and later (analysed and patch by Nicolas Noble).
116
1174.15 Fri Mar 1 12:04:50 CET 2013
118 - destroying a non-default loop would stop the global waitpid
119 watcher (Denis Bilenko).
120 - queueing pending watchers of higher priority from a watcher now invokes
121 them in a timely fashion (reported by Denis Bilenko).
12 - add throw() to all libev functions that cannot throw exceptions, for 122 - add throw() to all libev functions that cannot throw exceptions, for
13 further code size decrease when compiling for C++. 123 further code size decrease when compiling for C++.
14 - add throw () to callbacks that must not throw exceptions (allocator, 124 - add throw () to callbacks that must not throw exceptions (allocator,
15 syserr, loop acquire/release, periodic reschedule cbs). 125 syserr, loop acquire/release, periodic reschedule cbs).
16 - fix event_base_loop return code, add event_get_callback, event_base_new, 126 - fix event_base_loop return code, add event_get_callback, event_base_new,
17 event_base_get_method calls to improve libevent 1.x emulation and add 127 event_base_get_method calls to improve libevent 1.x emulation and add
18 some libevent 2.x funcitonality (based on a patch by Jeff Davey). 128 some libevent 2.x functionality (based on a patch by Jeff Davey).
19 - add more memory fences to fix a bug reported by Jeff Davey. Better 129 - add more memory fences to fix a bug reported by Jeff Davey. Better
20 be overfenced than underprotected. 130 be overfenced than underprotected.
21 - ev_run now returns a boolean status (true meaning watchers are 131 - ev_run now returns a boolean status (true meaning watchers are
22 still active). 132 still active).
23 - ev_once: undef EV_ERROR in ev_kqueue.c, to avoid clashing with 133 - ev_once: undef EV_ERROR in ev_kqueue.c, to avoid clashing with
… …
25 - (ecb) add memory fence support for xlC (Darin McBride). 135 - (ecb) add memory fence support for xlC (Darin McBride).
26 - (ecb) add memory fence support for gcc-mips (Anton Kirilov). 136 - (ecb) add memory fence support for gcc-mips (Anton Kirilov).
27 - (ecb) add memory fence support for gcc-alpha (Christian Weisgerber). 137 - (ecb) add memory fence support for gcc-alpha (Christian Weisgerber).
28 - work around some kernels losing file descriptors by leaking 138 - work around some kernels losing file descriptors by leaking
29 the kqueue descriptor in the child. 139 the kqueue descriptor in the child.
140 - work around linux inotify not reporting IN_ATTRIB changes for directories
141 in many cases.
30 - include sys/syscall.h instead of plain syscall.h. 142 - include sys/syscall.h instead of plain syscall.h.
143 - check for io watcher loops in ev_verify, check for the most
144 common reported usage bug in ev_io_start.
145 - choose socket vs. WSASocket at compiletime using EV_USE_WSASOCKET.
146 - always use WSASend/WSARecv directly on windows, hoping that this
147 works in all cases (unlike read/write/send/recv...).
148 - try to detect signals around a fork faster (test program by
149 Denis Bilenko).
150 - work around recent glibc versions that leak memory in realloc.
151 - rename ev::embed::set to ev::embed::set_embed to avoid clashing
152 the watcher base set (loop) method.
153 - rewrite the async/signal pipe logic to always keep a valid fd, which
154 simplifies (and hopefully correctifies :) the race checking
155 on fork, at the cost of one extra fd.
156 - add fat, msdos, jffs2, ramfs, ntfs and btrfs to the list of
157 inotify-supporting filesystems.
158 - move orig_CFLAGS assignment to after AC_INIT, as newer autoconf
159 versions ignore it before
160 (https://bugzilla.redhat.com/show_bug.cgi?id=908096).
161 - add some untested android support.
162 - enum expressions must be of type int (reported by Juan Pablo L).
31 163
324.11 Sat Feb 4 19:52:39 CET 2012 1644.11 Sat Feb 4 19:52:39 CET 2012
33 - INCOMPATIBLE CHANGE: ev_timer_again now clears the pending status, as 165 - INCOMPATIBLE CHANGE: ev_timer_again now clears the pending status, as
34 was documented already, but not implemented in the repeating case. 166 was documented already, but not implemented in the repeating case.
35 - new compiletime symbols: EV_NO_SMP and EV_NO_THREADS. 167 - new compiletime symbols: EV_NO_SMP and EV_NO_THREADS.
… …
219 reinitialising the default loop actually works (patch by 351 reinitialising the default loop actually works (patch by
220 Malek Hadj-Ali). 352 Malek Hadj-Ali).
221 - implement ev_suspend and ev_resume. 353 - implement ev_suspend and ev_resume.
222 - new EV_CUSTOM revents flag for use by applications. 354 - new EV_CUSTOM revents flag for use by applications.
223 - add documentation section about priorities. 355 - add documentation section about priorities.
224 - add a glossary to the dcoumentation. 356 - add a glossary to the documentation.
225 - extend the ev_fork description slightly. 357 - extend the ev_fork description slightly.
226 - optimize a jump out of call_pending. 358 - optimize a jump out of call_pending.
227 359
2283.53 Sun Feb 15 02:38:20 CET 2009 3603.53 Sun Feb 15 02:38:20 CET 2009
229 - fix a bug in event pipe creation on win32 that would cause a 361 - fix a bug in event pipe creation on win32 that would cause a

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