| 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. |
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2 | |
| 3 | TODO: ev_loop_wakeup |
3 | TODO: ev_loop_wakeup |
| 4 | |
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| 5 | TODO: EV_NO_THREADS/NO_SMP and/or EV_USE_PTHREADS or so. also document. |
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| 6 | TODO: #define EV_API_DECL static? ev_default_loop_ptr? |
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| 7 | TODO: EV_STANDALONE == NO_HASSEL (do not use clock_gettime in ev_standalone) |
4 | TODO: EV_STANDALONE == NO_HASSEL (do not use clock_gettime in ev_standalone) |
| 8 | TODO: memory fences for clang |
5 | TODO: faq, process a thing in each iteration |
| 9 | TODO: fix repeat=0 in http://pod.tst.eu/http://cvs.schmorp.de/libev/ev.pod#Be_smart_about_timeouts |
6 | TODO: dbeugging tips, ev_verify, ev_init twice |
| 10 | 4.10 |
7 | TODO: ev_break for immediate exit (EVBREAK_NOW?) |
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8 | TODO: ev_feed_child_event |
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9 | TODO: document the special problem of signals around fork. |
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10 | TODO: store pid for each signal |
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11 | TODO: document file descriptor usage per loop |
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12 | TODO: store loop pid_t and compare isndie signal handler,store 1 for same, 2 for differign pid, clean up in loop_fork |
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13 | TODO: embed watchers need updating when fd changes |
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14 | TODO: document portability requirements for atomic pointer access |
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15 | TODO: possible cb aliasing? |
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16 | TODO: document requirements for function pointers and calling conventions. |
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17 | |
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18 | 4.18 Fri Sep 5 17:55:26 CEST 2014 |
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19 | - events on files were not always generated properly with the |
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20 | epoll backend (testcase by Assaf Inbal). |
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21 | - mark event pipe fd as cloexec after a fork (analyzed by Sami Farin). |
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22 | - (ecb) support m68k, m88k and sh (patch by Miod Vallat). |
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23 | - use a reasonable fallback for EV_NSIG instead of erroring out |
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24 | when we can't detect the signal set size. |
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25 | - in the absence of autoconf, do not use the clock syscall |
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26 | on glibc >= 2.17 (avoids the syscall AND -lrt on systems |
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27 | doing clock_gettime in userspace). |
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28 | - ensure extern "C" function pointers are used for externally-visible |
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29 | loop callbacks (not watcher callbacks yet). |
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30 | - (ecb) work around memory barriers and volatile apparently both being |
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31 | broken in visual studio 2008 and later (analysed and patch by Nicolas Noble). |
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32 | |
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33 | 4.15 Fri Mar 1 12:04:50 CET 2013 |
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34 | - destroying a non-default loop would stop the global waitpid |
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35 | watcher (Denis Bilenko). |
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36 | - queueing pending watchers of higher priority from a watcher now invokes |
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37 | them in a timely fashion (reported by Denis Bilenko). |
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38 | - add throw() to all libev functions that cannot throw exceptions, for |
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39 | further code size decrease when compiling for C++. |
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40 | - add throw () to callbacks that must not throw exceptions (allocator, |
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41 | syserr, loop acquire/release, periodic reschedule cbs). |
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42 | - fix event_base_loop return code, add event_get_callback, event_base_new, |
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43 | event_base_get_method calls to improve libevent 1.x emulation and add |
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44 | some libevent 2.x functionality (based on a patch by Jeff Davey). |
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45 | - add more memory fences to fix a bug reported by Jeff Davey. Better |
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46 | be overfenced than underprotected. |
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47 | - ev_run now returns a boolean status (true meaning watchers are |
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48 | still active). |
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49 | - ev_once: undef EV_ERROR in ev_kqueue.c, to avoid clashing with |
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50 | libev's EV_ERROR (reported by 191919). |
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51 | - (ecb) add memory fence support for xlC (Darin McBride). |
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52 | - (ecb) add memory fence support for gcc-mips (Anton Kirilov). |
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53 | - (ecb) add memory fence support for gcc-alpha (Christian Weisgerber). |
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54 | - work around some kernels losing file descriptors by leaking |
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55 | the kqueue descriptor in the child. |
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56 | - work around linux inotify not reporting IN_ATTRIB changes for directories |
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57 | in many cases. |
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58 | - include sys/syscall.h instead of plain syscall.h. |
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59 | - check for io watcher loops in ev_verify, check for the most |
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60 | common reported usage bug in ev_io_start. |
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61 | - choose socket vs. WSASocket at compiletime using EV_USE_WSASOCKET. |
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62 | - always use WSASend/WSARecv directly on windows, hoping that this |
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63 | works in all cases (unlike read/write/send/recv...). |
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64 | - try to detect signals around a fork faster (test program by |
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65 | Denis Bilenko). |
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66 | - work around recent glibc versions that leak memory in realloc. |
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67 | - rename ev::embed::set to ev::embed::set_embed to avoid clashing |
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68 | the watcher base set (loop) method. |
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69 | - rewrite the async/signal pipe logic to always keep a valid fd, which |
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70 | simplifies (and hopefully correctifies :) the race checking |
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71 | on fork, at the cost of one extra fd. |
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72 | - add fat, msdos, jffs2, ramfs, ntfs and btrfs to the list of |
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73 | inotify-supporting filesystems. |
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74 | - move orig_CFLAGS assignment to after AC_INIT, as newer autoconf |
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75 | versions ignore it before |
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76 | (https://bugzilla.redhat.com/show_bug.cgi?id=908096). |
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77 | - add some untested android support. |
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78 | - enum expressions must be of type int (reported by Juan Pablo L). |
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79 | |
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80 | 4.11 Sat Feb 4 19:52:39 CET 2012 |
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81 | - INCOMPATIBLE CHANGE: ev_timer_again now clears the pending status, as |
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82 | was documented already, but not implemented in the repeating case. |
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83 | - new compiletime symbols: EV_NO_SMP and EV_NO_THREADS. |
| 11 | - fix a race where the workaround against the epoll fork bugs |
84 | - fix a race where the workaround against the epoll fork bugs |
| 12 | caused signals to not be handled anymore. |
85 | caused signals to not be handled anymore. |
| 13 | - correct backend_fudge for most backends, and implement a windows |
86 | - correct backend_fudge for most backends, and implement a windows |
| 14 | specific workaround to avoid looping because we call both |
87 | specific workaround to avoid looping because we call both |
| 15 | select and Sleep, both with different time resolutions. |
88 | select and Sleep, both with different time resolutions. |
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| 23 | as no external libraries are required. |
96 | as no external libraries are required. |
| 24 | - strategically import macros from libecb and mark rarely-used functions |
97 | - strategically import macros from libecb and mark rarely-used functions |
| 25 | as cache-cold (saving almost 2k code size on typical amd64 setups). |
98 | as cache-cold (saving almost 2k code size on typical amd64 setups). |
| 26 | - add Symbols.ev and Symbols.event files, that were missing. |
99 | - add Symbols.ev and Symbols.event files, that were missing. |
| 27 | - fix backend_mintime value for epoll (was 1/1024, is 1/1000 now). |
100 | - fix backend_mintime value for epoll (was 1/1024, is 1/1000 now). |
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101 | - fix #3 "be smart about timeouts" to not "deadlock" when |
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102 | timeout == now, also improve the section overall. |
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103 | - avoid "AVOIDING FINISHING BEFORE RETURNING" idiom. |
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104 | - support new EV_API_STATIC mode to make all libev symbols |
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105 | static. |
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106 | - supply default CFLAGS of -g -O3 with gcc when original CFLAGS |
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107 | were empty. |
| 28 | |
108 | |
| 29 | 4.04 Wed Feb 16 09:01:51 CET 2011 |
109 | 4.04 Wed Feb 16 09:01:51 CET 2011 |
| 30 | - fix two problems in the native win32 backend, where reuse of fd's |
110 | - fix two problems in the native win32 backend, where reuse of fd's |
| 31 | with different underlying handles caused handles not to be removed |
111 | with different underlying handles caused handles not to be removed |
| 32 | or added to the select set (analyzed and tested by Bert Belder). |
112 | 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 |
267 | reinitialising the default loop actually works (patch by |
| 188 | Malek Hadj-Ali). |
268 | Malek Hadj-Ali). |
| 189 | - implement ev_suspend and ev_resume. |
269 | - implement ev_suspend and ev_resume. |
| 190 | - new EV_CUSTOM revents flag for use by applications. |
270 | - new EV_CUSTOM revents flag for use by applications. |
| 191 | - add documentation section about priorities. |
271 | - add documentation section about priorities. |
| 192 | - add a glossary to the dcoumentation. |
272 | - add a glossary to the documentation. |
| 193 | - extend the ev_fork description slightly. |
273 | - extend the ev_fork description slightly. |
| 194 | - optimize a jump out of call_pending. |
274 | - optimize a jump out of call_pending. |
| 195 | |
275 | |
| 196 | 3.53 Sun Feb 15 02:38:20 CET 2009 |
276 | 3.53 Sun Feb 15 02:38:20 CET 2009 |
| 197 | - fix a bug in event pipe creation on win32 that would cause a |
277 | - fix a bug in event pipe creation on win32 that would cause a |
