| 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 | TODO: ev_loop_wakeup |
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4 | TODO: EV_STANDALONE == NO_HASSEL (do not use clock_gettime in ev_standalone) |
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5 | TODO: faq, process a thing in each iteration |
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6 | TODO: dbeugging tips, ev_verify, ev_init twice |
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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 portbaility requirements for atomic pointer access |
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15 | |
| 5 | TODO: EV_NO_THREADS/NO_SMP and/or EV_USE_PTHREADS or so. also document. |
16 | 4.15 Fri Mar 1 12:04:50 CET 2013 |
| 6 | TODO: #define EV_API_DECL static? ev_default_loop_ptr? |
17 | - destroying a non-default loop would stop the global waitpid |
| 7 | 4.10 |
18 | watcher (Denis Bilenko). |
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19 | - queueing pending watchers of higher priority from a watcher now invokes |
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20 | them in a timely fashion (reported by Denis Bilenko). |
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21 | - add throw() to all libev functions that cannot throw exceptions, for |
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22 | further code size decrease when compiling for C++. |
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23 | - add throw () to callbacks that must not throw exceptions (allocator, |
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24 | syserr, loop acquire/release, periodic reschedule cbs). |
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25 | - fix event_base_loop return code, add event_get_callback, event_base_new, |
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26 | event_base_get_method calls to improve libevent 1.x emulation and add |
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27 | some libevent 2.x functionality (based on a patch by Jeff Davey). |
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28 | - add more memory fences to fix a bug reported by Jeff Davey. Better |
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29 | be overfenced than underprotected. |
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30 | - ev_run now returns a boolean status (true meaning watchers are |
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31 | still active). |
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32 | - ev_once: undef EV_ERROR in ev_kqueue.c, to avoid clashing with |
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33 | libev's EV_ERROR (reported by 191919). |
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34 | - (ecb) add memory fence support for xlC (Darin McBride). |
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35 | - (ecb) add memory fence support for gcc-mips (Anton Kirilov). |
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36 | - (ecb) add memory fence support for gcc-alpha (Christian Weisgerber). |
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37 | - work around some kernels losing file descriptors by leaking |
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38 | the kqueue descriptor in the child. |
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39 | - work around linux inotify not reporting IN_ATTRIB changes for directories |
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40 | in many cases. |
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41 | - include sys/syscall.h instead of plain syscall.h. |
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42 | - check for io watcher loops in ev_verify, check for the most |
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43 | common reported usage bug in ev_io_start. |
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44 | - choose socket vs. WSASocket at compiletime using EV_USE_WSASOCKET. |
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45 | - always use WSASend/WSARecv directly on windows, hoping that this |
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46 | works in all cases (unlike read/write/send/recv...). |
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47 | - try to detect signals around a fork faster (test program by |
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48 | Denis Bilenko). |
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49 | - work around recent glibc versions that leak memory in realloc. |
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50 | - rename ev::embed::set to ev::embed::set_embed to avoid clashing |
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51 | the watcher base set (loop) method. |
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52 | - rewrite the async/signal pipe logic to always keep a valid fd, which |
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53 | simplifies (and hopefully correctifies :) the race checking |
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54 | on fork, at the cost of one extra fd. |
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55 | - add fat, msdos, jffs2, ramfs, ntfs and btrfs to the list of |
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56 | inotify-supporting filesystems. |
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57 | - move orig_CFLAGS assignment to after AC_INIT, as newer autoconf |
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58 | versions ignore it before |
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59 | (https://bugzilla.redhat.com/show_bug.cgi?id=908096). |
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60 | - add some untested android support. |
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61 | - enum expressions must be of type int (reported by Juan Pablo L). |
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62 | |
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63 | 4.11 Sat Feb 4 19:52:39 CET 2012 |
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64 | - INCOMPATIBLE CHANGE: ev_timer_again now clears the pending status, as |
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65 | was documented already, but not implemented in the repeating case. |
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66 | - new compiletime symbols: EV_NO_SMP and EV_NO_THREADS. |
| 8 | - fix a race where the workaround against the epoll fork bugs |
67 | - fix a race where the workaround against the epoll fork bugs |
| 9 | caused signals to not be handled anymore. |
68 | caused signals to not be handled anymore. |
| 10 | - correct backend_fudge for most backends, and implement a windows |
69 | - correct backend_fudge for most backends, and implement a windows |
| 11 | specific workaround to avoid looping because we call both |
70 | specific workaround to avoid looping because we call both |
| 12 | select and Sleep, both with different time resolutions. |
71 | select and Sleep, both with different time resolutions. |
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| 19 | own floor () if it is missing. This should make it easier to embed, |
78 | own floor () if it is missing. This should make it easier to embed, |
| 20 | as no external libraries are required. |
79 | as no external libraries are required. |
| 21 | - strategically import macros from libecb and mark rarely-used functions |
80 | - strategically import macros from libecb and mark rarely-used functions |
| 22 | as cache-cold (saving almost 2k code size on typical amd64 setups). |
81 | as cache-cold (saving almost 2k code size on typical amd64 setups). |
| 23 | - add Symbols.ev and Symbols.event files, that were missing. |
82 | - add Symbols.ev and Symbols.event files, that were missing. |
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83 | - fix backend_mintime value for epoll (was 1/1024, is 1/1000 now). |
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84 | - fix #3 "be smart about timeouts" to not "deadlock" when |
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85 | timeout == now, also improve the section overall. |
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86 | - avoid "AVOIDING FINISHING BEFORE RETURNING" idiom. |
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87 | - support new EV_API_STATIC mode to make all libev symbols |
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88 | static. |
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89 | - supply default CFLAGS of -g -O3 with gcc when original CFLAGS |
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90 | were empty. |
| 24 | |
91 | |
| 25 | 4.04 Wed Feb 16 09:01:51 CET 2011 |
92 | 4.04 Wed Feb 16 09:01:51 CET 2011 |
| 26 | - fix two problems in the native win32 backend, where reuse of fd's |
93 | - fix two problems in the native win32 backend, where reuse of fd's |
| 27 | with different underlying handles caused handles not to be removed |
94 | with different underlying handles caused handles not to be removed |
| 28 | or added to the select set (analyzed and tested by Bert Belder). |
95 | or added to the select set (analyzed and tested by Bert Belder). |
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| 114 | catch race conditions, but the users have spoken. |
181 | catch race conditions, but the users have spoken. |
| 115 | - point out the unspecified signal mask in the documentation, and |
182 | - point out the unspecified signal mask in the documentation, and |
| 116 | that this is a race condition regardless of EV_SIGNALFD. |
183 | that this is a race condition regardless of EV_SIGNALFD. |
| 117 | - backport inotify code to C89. |
184 | - backport inotify code to C89. |
| 118 | - inotify file descriptors could leak into child processes. |
185 | - inotify file descriptors could leak into child processes. |
| 119 | - ev_stat watchers could keep an errornous extra ref on the loop, |
186 | - ev_stat watchers could keep an erroneous extra ref on the loop, |
| 120 | preventing exit when unregistering all watchers (testcases |
187 | preventing exit when unregistering all watchers (testcases |
| 121 | provided by ry@tinyclouds.org). |
188 | provided by ry@tinyclouds.org). |
| 122 | - implement EV_WIN32_HANDLE_TO_FD and EV_WIN32_CLOSE_FD configuration |
189 | - 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. |
190 | symbols to make it easier for apps to do their own fd management. |
| 124 | - support EV_IDLE_ENABLE being disabled in ev++.h |
191 | - support EV_IDLE_ENABLE being disabled in ev++.h |
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| 182 | - correctly zero the idx values for arrays, so destroying and |
249 | - correctly zero the idx values for arrays, so destroying and |
| 183 | reinitialising the default loop actually works (patch by |
250 | reinitialising the default loop actually works (patch by |
| 184 | Malek Hadj-Ali). |
251 | Malek Hadj-Ali). |
| 185 | - implement ev_suspend and ev_resume. |
252 | - implement ev_suspend and ev_resume. |
| 186 | - new EV_CUSTOM revents flag for use by applications. |
253 | - new EV_CUSTOM revents flag for use by applications. |
| 187 | - add documentation section about priorites. |
254 | - add documentation section about priorities. |
| 188 | - add a glossary to the dcoumentation. |
255 | - add a glossary to the documentation. |
| 189 | - extend the ev_fork description slightly. |
256 | - extend the ev_fork description slightly. |
| 190 | - optimize a jump out of call_pending. |
257 | - optimize a jump out of call_pending. |
| 191 | |
258 | |
| 192 | 3.53 Sun Feb 15 02:38:20 CET 2009 |
259 | 3.53 Sun Feb 15 02:38:20 CET 2009 |
| 193 | - fix a bug in event pipe creation on win32 that would cause a |
260 | - fix a bug in event pipe creation on win32 that would cause a |
