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Comparing libev/Changes (file contents):
Revision 1.285 by root, Thu Feb 28 02:17:20 2013 UTC vs.
Revision 1.345 by root, Fri Nov 22 14:32:13 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: faq, process a thing in each iteration 5TODO: document EV_TSTAMP_T
6TODO: dbeugging tips, ev_verify, ev_init twice
7TODO: ev_break for immediate exit (EVBREAK_NOW?)
8TODO: ev_feed_child_event
9 6
10TODO: document the special problem of signals around fork. 74.29
11TODO: store pid for each signal 8 - (libev) add io uring autoconf and non-autoconf detection,
12TODO: document file descriptor usage per loop 9 the latter of which should disable io_uring compilation
13TODO: store loop pid_t and compare isndie signal handler,store 1 for same, 2 for differign pid, clean up in loop_fork 10 on old systems.
14TODO: embed watchers need updating when fd changes 11
15TODO: document portbaility requirements for atomic pointer access 124.28 (EV only)
13 - linuxaio backend resulted in random memory corruption
14 when loop is forked.
15 - linuxaio backend might have tried to cancel an iocb
16 multiple times (was unable to trigger this).
17 - linuxaio backend now employs a generation counter to
18 avoid handling spurious events from cancelled requests.
19 - io_cancel can return EINTR, deal with it. also, assume
20 io_submit also returns EINTR.
21 - fix some other minor bugs in linuxaio backend.
22 - ev_tstamp type can now be overriden by defining EV_TSTAMP_T.
23 - cleanup: replace expect_true/false and noinline by their
24 libecb counterparts.
25 - move syscall infrastructure from ev_linuxaio.c to ev.c.
26 - prepare io_uring integration.
27 - tweak ev_floor.
28 - epoll, poll, win32 Sleep and other places that use millisecond
29 reslution now all try to round up times.
30 - solaris port backend didn't compile.
31 - abstract time constants into their macros, for more flexibility.
32
334.27 Thu Jun 27 22:43:44 CEST 2019
34 - linux aio backend almost completely rewritten to work around its
35 limitations.
36 - linux aio backend now requires linux 4.19+.
37 - epoll backend now mandatory for linux aio backend.
38 - fail assertions more aggressively on invalid fd's detected
39 in the event loop, do not just silently fd_kill in case of
40 user error.
41 - ev_io_start/ev_io_stop now verify the watcher fd using
42 a syscall when EV_VERIFY is 2 or higher.
43
444.26 (EV only)
45 - update to libecb 0x00010006.
46 - new experimental linux aio backend (linux 4.18+).
47 - removed redundant 0-ptr check in ev_once.
48 - updated/extended ev_set_allocator documentation.
49 - replaced EMPTY2 macro by array_needsize_noinit.
50 - minor code cleanups.
51 - epoll backend now uses epoll_create1 also after fork.
52
534.25 Fri Dec 21 07:49:20 CET 2018
54 - INCOMPATIBLE CHANGE: EV_THROW was renamed to EV_NOEXCEPT
55 (EV_THROW still provided) and now uses noexcept on C++11 or newer.
56 - move the darwin select workaround higher in ev.c, as newer versions of
57 darwin managed to break their broken select even more.
58 - ANDROID => __ANDROID__ (reported by enh@google.com).
59 - disable epoll_create1 on android because it has broken header files
60 and google is unwilling to fix them (reported by enh@google.com).
61 - avoid a minor compilation warning on win32.
62 - c++: remove deprecated dynamic throw() specifications.
63 - c++: improve the (unsupported) bad_loop exception class.
64 - backport perl ev_periodic example to C, untested.
65 - update libecb, biggets change is to include a memory fence
66 in ECB_MEMORY_FENCE_RELEASE on x86/amd64.
67 - minor autoconf/automake modernisation.
68
694.24 Wed Dec 28 05:19:55 CET 2016
70 - bump version to 4.24, as the release tarball inexplicably
71 didn't have the right version in ev.h, even though the cvs-tagged
72 version did have the right one (reported by Ales Teska).
73
744.23 Wed Nov 16 18:23:41 CET 2016
75 - move some declarations at the beginning to help certain retarded
76 microsoft compilers, even though their documentation claims
77 otherwise (reported by Ruslan Osmanov).
78
794.22 Sun Dec 20 22:11:50 CET 2015
80 - when epoll detects unremovable fds in the fd set, rebuild
81 only the epoll descriptor, not the signal pipe, to avoid
82 SIGPIPE in ev_async_send. This doesn't solve it on fork,
83 so document what needs to be done in ev_loop_fork
84 (analyzed by Benjamin Mahler).
85 - remove superfluous sys/timeb.h include on win32
86 (analyzed by Jason Madden).
87 - updated libecb.
88
894.20 Sat Jun 20 13:01:43 CEST 2015
90 - prefer noexcept over throw () with C++ 11.
91 - update ecb.h due to incompatibilities with c11.
92 - fix a potential aliasing issue when reading and writing
93 watcher callbacks.
94
954.19 Thu Sep 25 08:18:25 CEST 2014
96 - ev.h wasn't valid C++ anymore, which tripped compilers other than
97 clang, msvc or gcc (analyzed by Raphael 'kena' Poss). Unfortunately,
98 C++ doesn't support typedefs for function pointers fully, so the affected
99 declarations have to spell out the types each time.
100 - when not using autoconf, tighten the check for clock_gettime and related
101 functionality.
102
1034.18 Fri Sep 5 17:55:26 CEST 2014
104 - events on files were not always generated properly with the
105 epoll backend (testcase by Assaf Inbal).
106 - mark event pipe fd as cloexec after a fork (analyzed by Sami Farin).
107 - (ecb) support m68k, m88k and sh (patch by Miod Vallat).
108 - use a reasonable fallback for EV_NSIG instead of erroring out
109 when we can't detect the signal set size.
110 - in the absence of autoconf, do not use the clock syscall
111 on glibc >= 2.17 (avoids the syscall AND -lrt on systems
112 doing clock_gettime in userspace).
113 - ensure extern "C" function pointers are used for externally-visible
114 loop callbacks (not watcher callbacks yet).
115 - (ecb) work around memory barriers and volatile apparently both being
116 broken in visual studio 2008 and later (analysed and patch by Nicolas Noble).
117
1184.15 Fri Mar 1 12:04:50 CET 2013
16 - destroying a non-default loop would stop the global waitpid 119 - destroying a non-default loop would stop the global waitpid
17 watcher (Denis Bilenko). 120 watcher (Denis Bilenko).
18 - queueing pending watchers of higher priority from a watcher now invokes 121 - queueing pending watchers of higher priority from a watcher now invokes
19 them in a timely fashion (reported by Denis Bilenko). 122 them in a timely fashion (reported by Denis Bilenko).
20 - add throw() to all libev functions that cannot throw exceptions, for 123 - add throw() to all libev functions that cannot throw exceptions, for
… …
38 - work around linux inotify not reporting IN_ATTRIB changes for directories 141 - work around linux inotify not reporting IN_ATTRIB changes for directories
39 in many cases. 142 in many cases.
40 - include sys/syscall.h instead of plain syscall.h. 143 - include sys/syscall.h instead of plain syscall.h.
41 - check for io watcher loops in ev_verify, check for the most 144 - check for io watcher loops in ev_verify, check for the most
42 common reported usage bug in ev_io_start. 145 common reported usage bug in ev_io_start.
43 - chose socket vs. WSASocket at compiletime using EV_USE_WSASOCKET. 146 - choose socket vs. WSASocket at compiletime using EV_USE_WSASOCKET.
44 - always use WSASend/WSARecv directly on windows, hoping that this 147 - always use WSASend/WSARecv directly on windows, hoping that this
45 works in all cases (unlike read/write/send/recv...). 148 works in all cases (unlike read/write/send/recv...).
46 - try to detect signals around a fork faster (test program by 149 - try to detect signals around a fork faster (test program by
47 Denis Bilenko). 150 Denis Bilenko).
48 - work around recent glibc versions that leak memory in realloc. 151 - work around recent glibc versions that leak memory in realloc.
49 - rename ev::embed::set to ev::embed::set_embed to avoid clashing 152 - rename ev::embed::set to ev::embed::set_embed to avoid clashing
50 the watcher base set (loop) method. 153 the watcher base set (loop) method.
51 - rewrite the async/signal pipe logic to always keep a valid fd, which 154 - rewrite the async/signal pipe logic to always keep a valid fd, which
52 simplifies (and hopefuly correctifies :) the race checking 155 simplifies (and hopefully correctifies :) the race checking
53 on fork, at the cost of one extra fd. 156 on fork, at the cost of one extra fd.
54 - add fat, msdos, jffs2, ramfs, ntfs and btrfs to the list of 157 - add fat, msdos, jffs2, ramfs, ntfs and btrfs to the list of
55 inotify-supporting filesystems. 158 inotify-supporting filesystems.
56 - move orig_CFLAGS assignment to after AC_INIT, as newer autoconf 159 - move orig_CFLAGS assignment to after AC_INIT, as newer autoconf
57 versions ignore it before 160 versions ignore it before
… …
249 reinitialising the default loop actually works (patch by 352 reinitialising the default loop actually works (patch by
250 Malek Hadj-Ali). 353 Malek Hadj-Ali).
251 - implement ev_suspend and ev_resume. 354 - implement ev_suspend and ev_resume.
252 - new EV_CUSTOM revents flag for use by applications. 355 - new EV_CUSTOM revents flag for use by applications.
253 - add documentation section about priorities. 356 - add documentation section about priorities.
254 - add a glossary to the dcoumentation. 357 - add a glossary to the documentation.
255 - extend the ev_fork description slightly. 358 - extend the ev_fork description slightly.
256 - optimize a jump out of call_pending. 359 - optimize a jump out of call_pending.
257 360
2583.53 Sun Feb 15 02:38:20 CET 2009 3613.53 Sun Feb 15 02:38:20 CET 2009
259 - fix a bug in event pipe creation on win32 that would cause a 362 - fix a bug in event pipe creation on win32 that would cause a

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