1 | Revision history for libev, a high-performance and full-featured event loop. |
1 | Revision history for libev, a high-performance and full-featured event loop. |
2 | |
2 | |
3 | TODO: ev_loop_wakeup |
3 | - linux aio backend almost complete rewritten to work around its |
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4 | limitations. |
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5 | - epoll backend now mandatory for linux aio backend. |
4 | |
6 | |
5 | TODO: EV_NO_THREADS/NO_SMP and/or EV_USE_PTHREADS or so. also document. |
7 | 4.26 (EV only) |
6 | TODO: #define EV_API_DECL static? ev_default_loop_ptr? |
8 | - update to libecb 0x00010006. |
7 | TODO: EV_STANDALONE == NO_HASSEL (do not use clock_gettime in ev_standalone) |
9 | - new experimental linux aio backend (linux 4.18+). |
8 | TODO: memory fences for clang |
10 | - removed redundant 0-ptr check in ev_once. |
9 | TODO: fix repeat=0 in http://pod.tst.eu/http://cvs.schmorp.de/libev/ev.pod#Be_smart_about_timeouts |
11 | - updated/extended ev_set_allocator documentation. |
10 | 4.10 |
12 | - replaced EMPTY2 macro by array_needsize_noinit. |
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13 | - minor code cleanups. |
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14 | - epoll backend now uses epoll_create1 also after fork. |
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15 | |
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16 | 4.25 Fri Dec 21 07:49:20 CET 2018 |
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17 | - INCOMPATIBLE CHANGE: EV_THROW was renamed to EV_NOEXCEPT |
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18 | (EV_THROW still provided) and now uses noexcept on C++11 or newer. |
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19 | - move the darwin select workaround highe rin ev.c, as newer versions of |
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20 | darwin managed to break their broken select even more. |
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21 | - ANDROID => __ANDROID__ (reported by enh@google.com). |
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22 | - disable epoll_create1 on android because it has broken header files |
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23 | and google is unwilling to fix them (reported by enh@google.com). |
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24 | - avoid a minor compilation warning on win32. |
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25 | - c++: remove deprecated dynamic throw() specifications. |
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26 | - c++: improve the (unsupported) bad_loop exception class. |
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27 | - backport perl ev_periodic example to C, untested. |
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28 | - update libecb, biggets change is to include a memory fence |
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29 | in ECB_MEMORY_FENCE_RELEASE on x86/amd64. |
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30 | - minor autoconf/automake modernisation. |
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31 | |
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32 | 4.24 Wed Dec 28 05:19:55 CET 2016 |
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33 | - bump version to 4.24, as the release tarball inexplicably |
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34 | didn't have the right version in ev.h, even though the cvs-tagged |
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35 | version did have the right one (reported by Ales Teska). |
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36 | |
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37 | 4.23 Wed Nov 16 18:23:41 CET 2016 |
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38 | - move some declarations at the beginning to help certain retarded |
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39 | microsoft compilers, even though their documentation claims |
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40 | otherwise (reported by Ruslan Osmanov). |
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41 | |
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42 | 4.22 Sun Dec 20 22:11:50 CET 2015 |
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43 | - when epoll detects unremovable fds in the fd set, rebuild |
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44 | only the epoll descriptor, not the signal pipe, to avoid |
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45 | SIGPIPE in ev_async_send. This doesn't solve it on fork, |
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46 | so document what needs to be done in ev_loop_fork |
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47 | (analyzed by Benjamin Mahler). |
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48 | - remove superfluous sys/timeb.h include on win32 |
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49 | (analyzed by Jason Madden). |
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50 | - updated libecb. |
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51 | |
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52 | 4.20 Sat Jun 20 13:01:43 CEST 2015 |
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53 | - prefer noexcept over throw () with C++ 11. |
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54 | - update ecb.h due to incompatibilities with c11. |
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55 | - fix a potential aliasing issue when reading and writing |
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56 | watcher callbacks. |
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57 | |
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58 | 4.19 Thu Sep 25 08:18:25 CEST 2014 |
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59 | - ev.h wasn't valid C++ anymore, which tripped compilers other than |
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60 | clang, msvc or gcc (analyzed by Raphael 'kena' Poss). Unfortunately, |
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61 | C++ doesn't support typedefs for function pointers fully, so the affected |
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62 | declarations have to spell out the types each time. |
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63 | - when not using autoconf, tighten the check for clock_gettime and related |
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64 | functionality. |
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65 | |
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66 | 4.18 Fri Sep 5 17:55:26 CEST 2014 |
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67 | - events on files were not always generated properly with the |
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68 | epoll backend (testcase by Assaf Inbal). |
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69 | - mark event pipe fd as cloexec after a fork (analyzed by Sami Farin). |
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70 | - (ecb) support m68k, m88k and sh (patch by Miod Vallat). |
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71 | - use a reasonable fallback for EV_NSIG instead of erroring out |
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72 | when we can't detect the signal set size. |
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73 | - in the absence of autoconf, do not use the clock syscall |
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74 | on glibc >= 2.17 (avoids the syscall AND -lrt on systems |
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75 | doing clock_gettime in userspace). |
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76 | - ensure extern "C" function pointers are used for externally-visible |
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77 | loop callbacks (not watcher callbacks yet). |
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78 | - (ecb) work around memory barriers and volatile apparently both being |
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79 | broken in visual studio 2008 and later (analysed and patch by Nicolas Noble). |
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80 | |
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81 | 4.15 Fri Mar 1 12:04:50 CET 2013 |
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82 | - destroying a non-default loop would stop the global waitpid |
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83 | watcher (Denis Bilenko). |
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84 | - queueing pending watchers of higher priority from a watcher now invokes |
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85 | them in a timely fashion (reported by Denis Bilenko). |
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86 | - add throw() to all libev functions that cannot throw exceptions, for |
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87 | further code size decrease when compiling for C++. |
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88 | - add throw () to callbacks that must not throw exceptions (allocator, |
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89 | syserr, loop acquire/release, periodic reschedule cbs). |
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90 | - fix event_base_loop return code, add event_get_callback, event_base_new, |
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91 | event_base_get_method calls to improve libevent 1.x emulation and add |
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92 | some libevent 2.x functionality (based on a patch by Jeff Davey). |
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93 | - add more memory fences to fix a bug reported by Jeff Davey. Better |
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94 | be overfenced than underprotected. |
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95 | - ev_run now returns a boolean status (true meaning watchers are |
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96 | still active). |
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97 | - ev_once: undef EV_ERROR in ev_kqueue.c, to avoid clashing with |
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98 | libev's EV_ERROR (reported by 191919). |
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99 | - (ecb) add memory fence support for xlC (Darin McBride). |
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100 | - (ecb) add memory fence support for gcc-mips (Anton Kirilov). |
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101 | - (ecb) add memory fence support for gcc-alpha (Christian Weisgerber). |
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102 | - work around some kernels losing file descriptors by leaking |
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103 | the kqueue descriptor in the child. |
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104 | - work around linux inotify not reporting IN_ATTRIB changes for directories |
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105 | in many cases. |
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106 | - include sys/syscall.h instead of plain syscall.h. |
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107 | - check for io watcher loops in ev_verify, check for the most |
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108 | common reported usage bug in ev_io_start. |
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109 | - choose socket vs. WSASocket at compiletime using EV_USE_WSASOCKET. |
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110 | - always use WSASend/WSARecv directly on windows, hoping that this |
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111 | works in all cases (unlike read/write/send/recv...). |
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112 | - try to detect signals around a fork faster (test program by |
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113 | Denis Bilenko). |
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114 | - work around recent glibc versions that leak memory in realloc. |
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115 | - rename ev::embed::set to ev::embed::set_embed to avoid clashing |
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116 | the watcher base set (loop) method. |
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117 | - rewrite the async/signal pipe logic to always keep a valid fd, which |
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118 | simplifies (and hopefully correctifies :) the race checking |
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119 | on fork, at the cost of one extra fd. |
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120 | - add fat, msdos, jffs2, ramfs, ntfs and btrfs to the list of |
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121 | inotify-supporting filesystems. |
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122 | - move orig_CFLAGS assignment to after AC_INIT, as newer autoconf |
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123 | versions ignore it before |
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124 | (https://bugzilla.redhat.com/show_bug.cgi?id=908096). |
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125 | - add some untested android support. |
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126 | - enum expressions must be of type int (reported by Juan Pablo L). |
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127 | |
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128 | 4.11 Sat Feb 4 19:52:39 CET 2012 |
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129 | - INCOMPATIBLE CHANGE: ev_timer_again now clears the pending status, as |
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130 | was documented already, but not implemented in the repeating case. |
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131 | - new compiletime symbols: EV_NO_SMP and EV_NO_THREADS. |
11 | - fix a race where the workaround against the epoll fork bugs |
132 | - fix a race where the workaround against the epoll fork bugs |
12 | caused signals to not be handled anymore. |
133 | caused signals to not be handled anymore. |
13 | - correct backend_fudge for most backends, and implement a windows |
134 | - correct backend_fudge for most backends, and implement a windows |
14 | specific workaround to avoid looping because we call both |
135 | specific workaround to avoid looping because we call both |
15 | select and Sleep, both with different time resolutions. |
136 | select and Sleep, both with different time resolutions. |
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23 | as no external libraries are required. |
144 | as no external libraries are required. |
24 | - strategically import macros from libecb and mark rarely-used functions |
145 | - strategically import macros from libecb and mark rarely-used functions |
25 | as cache-cold (saving almost 2k code size on typical amd64 setups). |
146 | as cache-cold (saving almost 2k code size on typical amd64 setups). |
26 | - add Symbols.ev and Symbols.event files, that were missing. |
147 | - add Symbols.ev and Symbols.event files, that were missing. |
27 | - fix backend_mintime value for epoll (was 1/1024, is 1/1000 now). |
148 | - fix backend_mintime value for epoll (was 1/1024, is 1/1000 now). |
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149 | - fix #3 "be smart about timeouts" to not "deadlock" when |
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150 | timeout == now, also improve the section overall. |
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151 | - avoid "AVOIDING FINISHING BEFORE RETURNING" idiom. |
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152 | - support new EV_API_STATIC mode to make all libev symbols |
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153 | static. |
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154 | - supply default CFLAGS of -g -O3 with gcc when original CFLAGS |
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155 | were empty. |
28 | |
156 | |
29 | 4.04 Wed Feb 16 09:01:51 CET 2011 |
157 | 4.04 Wed Feb 16 09:01:51 CET 2011 |
30 | - fix two problems in the native win32 backend, where reuse of fd's |
158 | - fix two problems in the native win32 backend, where reuse of fd's |
31 | with different underlying handles caused handles not to be removed |
159 | with different underlying handles caused handles not to be removed |
32 | or added to the select set (analyzed and tested by Bert Belder). |
160 | or added to the select set (analyzed and tested by Bert Belder). |
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187 | reinitialising the default loop actually works (patch by |
315 | reinitialising the default loop actually works (patch by |
188 | Malek Hadj-Ali). |
316 | Malek Hadj-Ali). |
189 | - implement ev_suspend and ev_resume. |
317 | - implement ev_suspend and ev_resume. |
190 | - new EV_CUSTOM revents flag for use by applications. |
318 | - new EV_CUSTOM revents flag for use by applications. |
191 | - add documentation section about priorities. |
319 | - add documentation section about priorities. |
192 | - add a glossary to the dcoumentation. |
320 | - add a glossary to the documentation. |
193 | - extend the ev_fork description slightly. |
321 | - extend the ev_fork description slightly. |
194 | - optimize a jump out of call_pending. |
322 | - optimize a jump out of call_pending. |
195 | |
323 | |
196 | 3.53 Sun Feb 15 02:38:20 CET 2009 |
324 | 3.53 Sun Feb 15 02:38:20 CET 2009 |
197 | - fix a bug in event pipe creation on win32 that would cause a |
325 | - fix a bug in event pipe creation on win32 that would cause a |