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Comparing libev/Changes (file contents):
Revision 1.239 by sf-exg, Thu Aug 25 17:39:43 2011 UTC vs.
Revision 1.302 by root, Mon Jan 19 16:45:19 2015 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: ev_loop_wakeup
4TODO: EV_STANDALONE == NO_HASSEL (do not use clock_gettime in ev_standalone)
5TODO: faq, process a thing in each iteration
6TODO: dbeugging tips, ev_verify, ev_init twice
7TODO: ev_break for immediate exit (EVBREAK_NOW?)
8TODO: ev_feed_child_event
9TODO: document the special problem of signals around fork.
10TODO: store pid for each signal
11TODO: document file descriptor usage per loop
12TODO: store loop pid_t and compare isndie signal handler,store 1 for same, 2 for differign pid, clean up in loop_fork
13TODO: embed watchers need updating when fd changes
14TODO: document portability requirements for atomic pointer access
15TODO: possible cb aliasing?
16TODO: document requirements for function pointers and calling conventions.
4 17
5TODO: EV_NO_THREADS/NO_SMP and/or EV_USE_PTHREADS or so. also document. 18 - prefer noexcept over throw () with C++ 11.
6TODO: #define EV_API_DECL static? ev_default_loop_ptr? 19
74.10 204.19 Thu Sep 25 08:18:25 CEST 2014
21 - ev.h wasn't valid C++ anymore, which tripped compilers other than
22 clang, msvc or gcc (analyzed by Raphael 'kena' Poss). Unfortunately,
23 C++ doesn't support typedefs for function pointers fully, so the affected
24 declarations have to spell out the types each time.
25 - when not using autoconf, tighten the check for clock_gettime and related
26 functionality.
27
284.18 Fri Sep 5 17:55:26 CEST 2014
29 - events on files were not always generated properly with the
30 epoll backend (testcase by Assaf Inbal).
31 - mark event pipe fd as cloexec after a fork (analyzed by Sami Farin).
32 - (ecb) support m68k, m88k and sh (patch by Miod Vallat).
33 - use a reasonable fallback for EV_NSIG instead of erroring out
34 when we can't detect the signal set size.
35 - in the absence of autoconf, do not use the clock syscall
36 on glibc >= 2.17 (avoids the syscall AND -lrt on systems
37 doing clock_gettime in userspace).
38 - ensure extern "C" function pointers are used for externally-visible
39 loop callbacks (not watcher callbacks yet).
40 - (ecb) work around memory barriers and volatile apparently both being
41 broken in visual studio 2008 and later (analysed and patch by Nicolas Noble).
42
434.15 Fri Mar 1 12:04:50 CET 2013
44 - destroying a non-default loop would stop the global waitpid
45 watcher (Denis Bilenko).
46 - queueing pending watchers of higher priority from a watcher now invokes
47 them in a timely fashion (reported by Denis Bilenko).
48 - add throw() to all libev functions that cannot throw exceptions, for
49 further code size decrease when compiling for C++.
50 - add throw () to callbacks that must not throw exceptions (allocator,
51 syserr, loop acquire/release, periodic reschedule cbs).
52 - fix event_base_loop return code, add event_get_callback, event_base_new,
53 event_base_get_method calls to improve libevent 1.x emulation and add
54 some libevent 2.x functionality (based on a patch by Jeff Davey).
55 - add more memory fences to fix a bug reported by Jeff Davey. Better
56 be overfenced than underprotected.
57 - ev_run now returns a boolean status (true meaning watchers are
58 still active).
59 - ev_once: undef EV_ERROR in ev_kqueue.c, to avoid clashing with
60 libev's EV_ERROR (reported by 191919).
61 - (ecb) add memory fence support for xlC (Darin McBride).
62 - (ecb) add memory fence support for gcc-mips (Anton Kirilov).
63 - (ecb) add memory fence support for gcc-alpha (Christian Weisgerber).
64 - work around some kernels losing file descriptors by leaking
65 the kqueue descriptor in the child.
66 - work around linux inotify not reporting IN_ATTRIB changes for directories
67 in many cases.
68 - include sys/syscall.h instead of plain syscall.h.
69 - check for io watcher loops in ev_verify, check for the most
70 common reported usage bug in ev_io_start.
71 - choose socket vs. WSASocket at compiletime using EV_USE_WSASOCKET.
72 - always use WSASend/WSARecv directly on windows, hoping that this
73 works in all cases (unlike read/write/send/recv...).
74 - try to detect signals around a fork faster (test program by
75 Denis Bilenko).
76 - work around recent glibc versions that leak memory in realloc.
77 - rename ev::embed::set to ev::embed::set_embed to avoid clashing
78 the watcher base set (loop) method.
79 - rewrite the async/signal pipe logic to always keep a valid fd, which
80 simplifies (and hopefully correctifies :) the race checking
81 on fork, at the cost of one extra fd.
82 - add fat, msdos, jffs2, ramfs, ntfs and btrfs to the list of
83 inotify-supporting filesystems.
84 - move orig_CFLAGS assignment to after AC_INIT, as newer autoconf
85 versions ignore it before
86 (https://bugzilla.redhat.com/show_bug.cgi?id=908096).
87 - add some untested android support.
88 - enum expressions must be of type int (reported by Juan Pablo L).
89
904.11 Sat Feb 4 19:52:39 CET 2012
91 - INCOMPATIBLE CHANGE: ev_timer_again now clears the pending status, as
92 was documented already, but not implemented in the repeating case.
93 - new compiletime symbols: EV_NO_SMP and EV_NO_THREADS.
8 - fix a race where the workaround against the epoll fork bugs 94 - fix a race where the workaround against the epoll fork bugs
9 caused signals to not be handled anymore. 95 caused signals to not be handled anymore.
10 - correct backend_fudge for most backends, and implement a windows 96 - correct backend_fudge for most backends, and implement a windows
11 specific workaround to avoid looping because we call both 97 specific workaround to avoid looping because we call both
12 select and Sleep, both with different time resolutions. 98 select and Sleep, both with different time resolutions.
… …
19 own floor () if it is missing. This should make it easier to embed, 105 own floor () if it is missing. This should make it easier to embed,
20 as no external libraries are required. 106 as no external libraries are required.
21 - strategically import macros from libecb and mark rarely-used functions 107 - strategically import macros from libecb and mark rarely-used functions
22 as cache-cold (saving almost 2k code size on typical amd64 setups). 108 as cache-cold (saving almost 2k code size on typical amd64 setups).
23 - add Symbols.ev and Symbols.event files, that were missing. 109 - add Symbols.ev and Symbols.event files, that were missing.
110 - fix backend_mintime value for epoll (was 1/1024, is 1/1000 now).
111 - fix #3 "be smart about timeouts" to not "deadlock" when
112 timeout == now, also improve the section overall.
113 - avoid "AVOIDING FINISHING BEFORE RETURNING" idiom.
114 - support new EV_API_STATIC mode to make all libev symbols
115 static.
116 - supply default CFLAGS of -g -O3 with gcc when original CFLAGS
117 were empty.
24 118
254.04 Wed Feb 16 09:01:51 CET 2011 1194.04 Wed Feb 16 09:01:51 CET 2011
26 - fix two problems in the native win32 backend, where reuse of fd's 120 - fix two problems in the native win32 backend, where reuse of fd's
27 with different underlying handles caused handles not to be removed 121 with different underlying handles caused handles not to be removed
28 or added to the select set (analyzed and tested by Bert Belder). 122 or added to the select set (analyzed and tested by Bert Belder).
… …
114 catch race conditions, but the users have spoken. 208 catch race conditions, but the users have spoken.
115 - point out the unspecified signal mask in the documentation, and 209 - point out the unspecified signal mask in the documentation, and
116 that this is a race condition regardless of EV_SIGNALFD. 210 that this is a race condition regardless of EV_SIGNALFD.
117 - backport inotify code to C89. 211 - backport inotify code to C89.
118 - inotify file descriptors could leak into child processes. 212 - inotify file descriptors could leak into child processes.
119 - ev_stat watchers could keep an errornous extra ref on the loop, 213 - ev_stat watchers could keep an erroneous extra ref on the loop,
120 preventing exit when unregistering all watchers (testcases 214 preventing exit when unregistering all watchers (testcases
121 provided by ry@tinyclouds.org). 215 provided by ry@tinyclouds.org).
122 - implement EV_WIN32_HANDLE_TO_FD and EV_WIN32_CLOSE_FD configuration 216 - implement EV_WIN32_HANDLE_TO_FD and EV_WIN32_CLOSE_FD configuration
123 symbols to make it easier for apps to do their own fd management. 217 symbols to make it easier for apps to do their own fd management.
124 - support EV_IDLE_ENABLE being disabled in ev++.h 218 - support EV_IDLE_ENABLE being disabled in ev++.h
… …
182 - correctly zero the idx values for arrays, so destroying and 276 - correctly zero the idx values for arrays, so destroying and
183 reinitialising the default loop actually works (patch by 277 reinitialising the default loop actually works (patch by
184 Malek Hadj-Ali). 278 Malek Hadj-Ali).
185 - implement ev_suspend and ev_resume. 279 - implement ev_suspend and ev_resume.
186 - new EV_CUSTOM revents flag for use by applications. 280 - new EV_CUSTOM revents flag for use by applications.
187 - add documentation section about priorites. 281 - add documentation section about priorities.
188 - add a glossary to the dcoumentation. 282 - add a glossary to the documentation.
189 - extend the ev_fork description slightly. 283 - extend the ev_fork description slightly.
190 - optimize a jump out of call_pending. 284 - optimize a jump out of call_pending.
191 285
1923.53 Sun Feb 15 02:38:20 CET 2009 2863.53 Sun Feb 15 02:38:20 CET 2009
193 - fix a bug in event pipe creation on win32 that would cause a 287 - fix a bug in event pipe creation on win32 that would cause a

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