| 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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3 | - fix a bug where an inotify watcher was added twice, causing |
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4 | freezes on hash collisions (reported and analysed by Graham Leggett). |
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5 | - new config symbol, EV_USE_CLOCK_SYSCALL, to make libev use |
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6 | a direct syscall - slower, but no dependency on librt et al. |
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7 | - assume negative return values != -1 signals success of port_getn |
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8 | (http://cvs.epicsol.org/cgi/viewcvs.cgi/epic5/source/newio.c?rev=1.52) |
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9 | (no known failure reports, but it doesn't hurt). |
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10 | - EXPERIMENTAL: default the method to operator () in ev++.h, |
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11 | to make it nicer to use functors (requested by Benedek László). |
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12 | - fixed const object callbacks in ev++.h. |
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13 | - replaced loop_ref argument of watcher.set (loop) by a direct |
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14 | ev_loop * in ev++.h, to avoid clashes with functor patch. |
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15 | - do not try to watch the empty string via inotify. |
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16 | - inotify watchers could be leaked under certain circumstances. |
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17 | - OS X 10.5 is actually even more broken than earlier versions, |
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18 | so fall back to select on that piece of garbage. |
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19 | |
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20 | 3.49 Wed Nov 19 11:26:53 CET 2008 |
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21 | - ev_stat watchers will now use inotify as a mere hint on |
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22 | kernels <2.6.25, or if the filesystem is not in the |
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23 | "known to be good" list. |
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24 | - better mingw32 compatibility (it's not as borked as native win32) |
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25 | (analysed by Roger Pack). |
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26 | - include stdio.h in the example program, as too many people are |
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27 | confused by the weird C language otherwise. I guess the next thing |
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28 | I get told is that the "..." ellipses in the examples don't compile |
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29 | with their C compiler. |
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30 | |
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31 | 3.48 Thu Oct 30 09:02:37 CET 2008 |
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32 | - further optimise away the EPOLL_CTL_ADD/MOD combo in the epoll |
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33 | backend by assuming the kernel event mask hasn't changed if |
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34 | ADD fails with EEXIST. |
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35 | - work around spurious event notification bugs in epoll by using |
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36 | a 32-bit generation counter. recreate kernel state if we receive |
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37 | spurious notifications or unwanted events. this is very costly, |
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38 | but I didn't come up with this horrible design. |
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39 | - use memset to initialise most arrays now and do away with the |
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40 | init functions. |
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41 | - expand time-out strategies into a "Be smart about timeouts" section. |
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42 | - drop the "struct" from all ev_watcher declarations in the |
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43 | documentation and did other clarifications (yeah, it was a mistake |
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44 | to have a struct AND a function called ev_loop). |
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45 | - fix a bug where ev_default would not initialise the default |
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46 | loop again after it was destroyed with ev_default_destroy. |
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47 | - rename syserr to ev_syserr to avoid name clashes when embedding, |
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48 | do similar changes for event.c. |
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49 | |
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50 | 3.45 Tue Oct 21 21:59:26 CEST 2008 |
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51 | - disable inotify usage on linux <2.6.25, as it is broken |
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52 | (reported by Yoann Vandoorselaere). |
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53 | - ev_stat errornously would try to add inotify watchers |
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54 | even when inotify wasn't available (this should only |
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55 | have a performance impact). |
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56 | - ev_once now passes both timeout and io to the callback if both |
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57 | occur concurrently, instead of giving timeouts precedence. |
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58 | - disable EV_USE_INOTIFY when sys/inotify.h is too old. |
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59 | |
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60 | 3.44 Mon Sep 29 05:18:39 CEST 2008 |
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61 | - embed watchers now automatically invoke ev_loop_fork on the |
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62 | embedded loop when the parent loop forks. |
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63 | - new function: ev_now_update (loop). |
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64 | - verify_watcher was not marked static. |
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65 | - improve the "associating..." manpage section. |
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66 | - documentation tweaks here and there. |
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67 | |
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68 | 3.43 Sun Jul 6 05:34:41 CEST 2008 |
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69 | - include more include files on windows to get struct _stati64 |
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70 | (reported by Chris Hulbert, but doesn't quite fix his issue). |
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71 | - add missing #include <io.h> in ev.c on windows (reported by |
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72 | Matt Tolton). |
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73 | |
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74 | 3.42 Tue Jun 17 12:12:07 CEST 2008 |
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75 | - work around yet another windows bug: FD_SET actually adds fd's |
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76 | multiple times to the fd_*SET*, despite official MSN docs claiming |
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77 | otherwise. Reported and well-analysed by Matt Tolton. |
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78 | - define NFDBITS to 0 when EV_SELECT_IS_WINSOCKET to make it compile |
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79 | (reported any analysed by Chris Hulbert). |
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80 | - fix a bug in ev_ebadf (this function is only used to catch |
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81 | programming errors in the libev user). reported by Matt Tolton. |
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82 | - fix a bug in fd_intern on win32 (could lead to compile errors |
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83 | under some circumstances, but would work correctly if it compiles). |
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84 | reported by Matt Tolton. |
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85 | - (try to) work around missing lstat on windows. |
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86 | - pass in the write fd set as except fd set under windows. windows |
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87 | is so uncontrollably lame that it requires this. this means that |
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88 | switching off oobinline is not supported (but tcp/ip doesn't |
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89 | have oob, so that would be stupid anyways. |
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90 | - use posix module symbol to auto-detect monotonic clock presence |
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91 | and some other default values. |
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92 | |
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93 | 3.41 Fri May 23 18:42:54 CEST 2008 |
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94 | - work around an obscure bug in winsocket select: if you |
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95 | provide only empty fd sets then select returns WSAEINVAL. how sucky. |
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96 | - improve timer scheduling stability and reduce use of time_epsilon. |
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97 | - use 1-based 2-heap for EV_MINIMAL, simplifies code, reduces |
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98 | codesize and makes for better cache-efficiency. |
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99 | - use 3-based 4-heap for !EV_MINIMAL. this makes better use |
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100 | of cpu cache lines and gives better growth behaviour than |
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101 | 2-based heaps. |
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102 | - cache timestamp within heap for !EV_MINIMAL, to avoid random |
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103 | memory accesses. |
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104 | - document/add EV_USE_4HEAP and EV_HEAP_CACHE_AT. |
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105 | - fix a potential aliasing issue in ev_timer_again. |
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106 | - add/document ev_periodic_at, retract direct access to ->at. |
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107 | - improve ev_stat docs. |
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108 | - add portability requirements section. |
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109 | - fix manpage headers etc. |
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110 | - normalise WSA error codes to lower range on windows. |
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111 | - add consistency check code that can be called automatically |
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112 | or on demand to check for internal structures (ev_loop_verify). |
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113 | |
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114 | 3.31 Wed Apr 16 20:45:04 CEST 2008 |
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115 | - added last minute fix for ev_poll.c by Brandon Black. |
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116 | |
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117 | 3.3 Wed Apr 16 19:04:10 CEST 2008 |
| 3 | - event_base_loopexit should return 0 on success |
118 | - event_base_loopexit should return 0 on success |
| 4 | (W.C.A. Wijngaards). |
119 | (W.C.A. Wijngaards). |
| 5 | - work around poll() potentially not clearing revents |
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| 6 | field in ev_poll (Brandon Black). |
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| 7 | - added linux eventfd support. |
120 | - added linux eventfd support. |
| 8 | - try to autodetect epoll and inotify support |
121 | - try to autodetect epoll and inotify support |
| 9 | by libc header version if not using autoconf. |
122 | by libc header version if not using autoconf. |
| 10 | - new symbols: EV_DEFAULT_UC and EV_DEFAULT_UC_. |
123 | - new symbols: EV_DEFAULT_UC and EV_DEFAULT_UC_. |
| 11 | - declare functions defined in ev.h as inline if |
124 | - declare functions defined in ev.h as inline if |
| 12 | C99 or gcc are available. |
125 | C99 or gcc are available. |
| 13 | - enable inlining with gcc versions 2 and 3. |
126 | - enable inlining with gcc versions 2 and 3. |
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127 | - work around broken poll implementations potentially |
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128 | not clearing revents field in ev_poll (Brandon Black) |
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129 | (no such systems are known at this time). |
| 14 | - work around a bug in realloc on openbsd and darwin, |
130 | - work around a bug in realloc on openbsd and darwin, |
| 15 | also makes the errornous valgrind complaints |
131 | also makes the errornous valgrind complaints |
| 16 | go away (noted by various people). |
132 | go away (noted by various people). |
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133 | - fix ev_async_pending, add c++ wrapper for ev_async |
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134 | (based on patch sent by Johannes Deisenhofer. |
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135 | - add sensible set method to ev::embed. |
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136 | - made integer constants type int in ev.h. |
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137 | |
| 18 | 3.2 Wed Apr 2 17:11:19 CEST 2008 |
138 | 3.2 Wed Apr 2 17:11:19 CEST 2008 |
| 19 | - fix a 64 bit overflow issue in the select backend, |
139 | - fix a 64 bit overflow issue in the select backend, |
| 20 | by using fd_mask instead of int for the mask. |
140 | by using fd_mask instead of int for the mask. |
| 21 | - rename internal sighandler to avoid clash with very old perls. |
141 | - rename internal sighandler to avoid clash with very old perls. |
