| 1 | Revision history for Perl extension Coro. |
1 | Revision history for Perl extension Coro. |
| 2 | |
2 | |
| 3 | TODO: should explore PerlIO::via::CoroCede and PerlIO::via::CoroAIO. |
3 | TODO: should explore PerlIO::coroaio (perl leaks like hell). |
| 4 | TODO: maybe implement a default message channel, very much like Erlang |
4 | TODO: maybe implement a default message channel, very much like Erlang's |
| 5 | (which is cool in a lot of important aspects (failures!), |
5 | actor model (which is cool in a lot of important aspects (failures!), |
| 6 | but very lacking in others (higher level ipc)). |
6 | but very lacking in others (higher level ipc)). |
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7 | TODO: unready_all |
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8 | TODO: myhttpd header parsing |
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9 | TODO: channel->maxsize(newsize)? |
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10 | |
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11 | - added section on "windows process emulation" to the manpage, |
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12 | after a not-so-fruitful (nor-friendly) "discussion" with chip |
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13 | salzenberg (discussion implies arguments, but his only arguments |
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14 | were ad-hominems, one wonders why he started it in the first |
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15 | place). |
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16 | |
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17 | 5.17 Sat Aug 22 23:09:31 CEST 2009 |
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18 | - work around a bug in the perl debugger causing crashes |
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19 | when running under the debugger by marking _pool_handler as nodebug. |
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20 | - speed up Coro::async considerably. |
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21 | - try some hacks to get netbsd to work "more often" - their broken |
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22 | setjmp/longjmp, ucontext *and* phtreads are really hard on Coro. |
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23 | - convert Coro to AE 5.0 API. |
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24 | |
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25 | 5.162 Tue Jul 28 04:04:03 CEST 2009 |
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26 | - perl 5.8.2 is now minimum requirement. |
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27 | - skip t/19_handle.t on broken windows perls. |
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28 | |
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29 | 5.161 Wed Jul 22 04:47:38 CEST 2009 |
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30 | - Coro::AnyEvent::poll could have a different prototype when EV was |
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31 | used as backend (analyzed by Tatsuhiko Miyagawa). |
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32 | - Coro::AnyEvent errornously initialised the event loop when loaded, |
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33 | not on demand. |
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34 | - try to workaround rare */t/01_unblock.t failures. |
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35 | |
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36 | 5.16 Tue Jul 21 01:44:37 CEST 2009 |
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37 | - Coro::AnyEvent failed to hook into the event loop |
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38 | when no threads had been readied between detecting |
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39 | the event loop and actually running it. |
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40 | - considerably speed up Coro::Select by taking avdantage |
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41 | of AnyEvent > 4.8 and some other optimisations. |
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42 | - implement paragraph readline mode in Coro::Handle |
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43 | (based on patches by Zsbán Ambrus). |
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44 | - replace WSAEINPROGRESS by WSAEWOULDBLOCK (reported |
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45 | and analyzed by Yasuhiro MATSUMOTO). |
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46 | - clarified libcoro license and copyright. |
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47 | - someone stole my EXTRA_META!!! |
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48 | - implement Coro::Select::patch_pp_sselect and it's brother, |
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49 | for hardcode select overriding. |
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50 | |
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51 | 5.151 Mon Jul 6 05:41:57 CEST 2009 |
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52 | - backport to windows process emulation code again (patch by |
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53 | Yasuhiro MATSUMOTO). |
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54 | - slightly update Coro::MakeMaker. |
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55 | |
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56 | 5.15 Tue Jun 30 10:28:06 CEST 2009 |
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57 | - deprecate Coro::Socket, document how to get ipv6 support via |
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58 | AnyEvent::Socket instead. |
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59 | - implement signal->wait ($cb) interface, similar to semaphores. |
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60 | - work around SvOK not supporting getmagic, so we have to getmagic |
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61 | to test for undef :/ (reported by Matthias Waldorf). |
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62 | - load Coro::AnyEvent in all modules using AnyEvent. |
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63 | - work around perl corrupting our internal data structures, |
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64 | reported by Tokuhiro Matsuno. |
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65 | - enable per-coroutine real and cpu time gathering |
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66 | (Coro::State::enable_times). |
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67 | |
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68 | 5.14 Wed Jun 24 01:37:48 CEST 2009 |
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69 | - provide explicit functions to "cede" to the event loop in Coro::AnyEvent, |
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70 | as this seems to have been a difficult concept (poll, sleep, idle, |
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71 | idle_upto). |
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72 | - add Coro::AnyEvent::readable/writable functions. |
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73 | - clarify Coro::EV/Event/AnyEvent manpages. |
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74 | - free per-thread global scalars in the thread calling ->cancel, to |
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75 | avoid crashes when $_, $@ etc., are magical but some of those |
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76 | had already been freed. |
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77 | - "unexperimentalise" the callback interface for Coro::Semaphore. |
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78 | - speed up ready queue management/context switching by using a linked |
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79 | list instead of an array (~5-10%). |
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80 | - implement "watch" command in Coro::Debug shells. |
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81 | - for fun, implement time-slicing as an example in the manpage. |
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82 | - if AnyEvent detects EV or Event, but we don't have Coro::EV or |
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83 | Coro::Event, use the normal AnyEvent handling instead of dieing |
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84 | (the same is true for Coro::Handle). |
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85 | - properly document Coro::EV::timed_io_once. |
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86 | - avoid unneccessary ->cancel calls in Coro::Handle. |
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87 | - maybe make it work on mingw32 with win32 backend |
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88 | (based on patch by Yasuhiro Matsumoto). |
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89 | |
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90 | 5.132 Fri May 29 09:00:39 CEST 2009 |
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91 | - do not keep a reference to the argument itself in |
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92 | Coro::Semaphore::guard, as it could change later. |
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93 | - support SO_RCVBUF/SO_SNDBUF nonstandard Coro::Socket options, |
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94 | should support a prepare callback. |
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95 | |
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96 | 5.131 Mon Mar 16 23:20:37 CET 2009 |
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97 | - implement and document Coro->suspend, Coro->resume. |
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98 | - fix Coro::Select implementation to not (often) close |
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99 | the passed file descriptors (testcase provided by pippijn). |
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100 | |
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101 | 5.13 Mon Dec 15 21:51:42 CET 2008 |
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102 | - EXPERIMENTAL: implement dynamic winds (on_enter/on_leave). |
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103 | - don't set diehook to C<undef> but instead to NULL, to avoid |
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104 | spurious warnings. |
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105 | - fix a lot of bugs in Coro::SemaphoreSet. |
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106 | - Coro::SemaphoreSet will less often create a semaphore needlessly. |
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107 | - add Coro::SemaphoreSet::count and wait methods. |
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108 | - take advantage of the new Guard module. |
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109 | - deprecate Coro::guard. |
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110 | - try to fix the dreaded 01_unblock tests once more. I hate it when |
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111 | testsuites need more fixing than the code they are supposed to test. |
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112 | - croak in more cases when a required callback isn't resolvable. |
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113 | - fix some minor issues in Coro::State->call/eval. |
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114 | - use current coroutine context instead of a temporary one |
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115 | when temporarily switching to another coroutine. |
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116 | - do not call C-level on_destroy handlers during global destruction, |
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117 | to avoid needless segfaults. |
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118 | |
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119 | 5.12 Sun Dec 7 13:30:38 CET 2008 |
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120 | - add default config for MirOS, which seems to be a bug-to-bug |
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121 | compatible fork of openbsd ("world domination by releasing |
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122 | openbsd cvs before the openbsd folks do it" or so :). |
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123 | - free_padlist did destroy the names pad, not good, but didn't |
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124 | seem to bother perl - this could fix issues such as eval "" |
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125 | inside a function called from multiple coroutines. |
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126 | - use a different method to detect destruction time. |
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127 | - be more careful when freeing padlists just before global |
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128 | destruction. |
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129 | - fixed and expanded the call/cc example. |
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130 | - renamed _terminate to _coro_run. |
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131 | - new method Coro::Channel->shutdown. |
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132 | - try pthreads on openbsd <4.4 (broken sigaltstack, will |
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133 | pthreads fare better?). |
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134 | - be less picky about destroying "a" running coroutine. |
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135 | |
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136 | 5.11 Tue Nov 25 21:49:05 CET 2008 |
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137 | - DEBUGGING in 5.10.0 is a mess: it constantly flags perfectly |
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138 | working code with failed assertions, introducing more bugs than |
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139 | it fixes, requiring elaborate workarounds :( |
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140 | |
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141 | 5.1 Mon Nov 24 08:54:59 CET 2008 |
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142 | - wrote a small introductory tutorial - Coro::Intro. |
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143 | - convert Coro::Timer, Coro::Select and Coro::Util to rouse API. |
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144 | - Coro::Select did errornously dup the file descriptors |
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145 | and didn't work with all AnyEvent backends. |
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146 | - Coro::Select wasn't imported correctly form Coro::LWP, causing blocking |
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147 | LWP data transfers. |
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148 | - disassociate c contexts from coro objects - this is agruably more |
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149 | correct, but mostly allows sharing of cctxs between coro and state |
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150 | objects, for added memory savings and speed increases. |
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151 | - bumped $Coro::POOL_RSS up to 32kb by default. |
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152 | - no longer set the optype to OP_CUSTOM, as B::* understandably |
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153 | doesn't like this very much (and we *are* a type of entersub). |
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154 | - implement state cloning, just to prove that call/cc can be done. |
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155 | - automatically load Coro::AnyEvent in Coro::Handle. |
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156 | - wrap ->cancel calls in eval inside Coro::Handle as EV watchers |
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157 | do not have this method (and don't need it either). |
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158 | - speed up generic anyevent methods in Coro::Handle by using rouse |
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159 | callbacks. |
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160 | - allow coroutines in $Coro::IDLE, speeding up Coro::AnyEvent and |
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161 | others. It also makes the debugger happier, as you can trace |
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162 | through the idle threads now. |
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163 | - add comppad_name* and hints ($^H, %^H) to per-thread variables. |
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164 | - eg/event was pretty broken. |
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165 | - better 5.8.6 compatibility. |
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166 | |
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167 | 5.0 Thu Nov 20 10:35:05 CET 2008 |
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168 | - NEW ARCHITECTURE: use the latest 4.x version if you experience |
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169 | stability issues. |
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170 | - bump API version to 7 - all dependents must be recompiled. |
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171 | - removed timed_* functions - they were not being used anyways |
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172 | and should be replaced by a more generic mechanism - |
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173 | and were annoying to support anyways :) |
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174 | - removed SemaphoreSet's waiter method - use sem method instead. |
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175 | - Coro::Semaphore->adjust didn't correctly wake up enough waiters. |
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176 | - async_pool did free a scalar value twice |
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177 | ("Attempt to unreference..."). |
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178 | - fix a longstanding bug where calling terminate on a coro that |
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179 | was waiting for a semaphore that was just becoming available |
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180 | would cause a deadlock (semaphore would get into a state where |
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181 | it was available but waiters were still blocked). |
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182 | - calling throw on a coroutine that is waiting for a semaphore will |
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183 | no longer make it acquire the semaphore (and thus leak a count). |
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184 | - perl's process emulation is now not even theoretically supported |
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185 | anymore. |
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186 | - new functions Coro::rouse_cb and Coro::rouse_wait for easier |
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187 | conversion of callback-style to blocking-style. |
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188 | - new methods $coro->schedule_to and ->cede_to, to specifically |
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189 | schedule or cede to a specific coroutine. |
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190 | - new function Coro::Semaphore::wait. |
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191 | - use named constants in Coro::Channel (Richard Hundt). |
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192 | - directly patch the entersub opcode calling SLF functions (cede, |
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193 | transfer and so on). this does speed up context switching, but |
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194 | more importanly, it frees us from the hardcoded behaviour of |
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195 | entersub, so we might actually be able to return something from |
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196 | those functions and atcually create new ones. |
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197 | - take advantage of __builtin_frame_address on gcc. |
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198 | - expose THX in coroapi (not sure whether this was a wise decision, |
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199 | as "threaded" perls are running at half speed anyways). |
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200 | - implement execute_slf (schedule-like-function) interface that makes |
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201 | it possible to implement schedule-like-functions in XS. |
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202 | - use new SLF interface to massively speed up Coro::EV by roughly a |
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203 | factor of two. |
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204 | - used new SLF interface to massively speed up Coro::Semaphore by a |
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205 | factor of three. |
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206 | - used new SLF interface to speed up Coro::AIO by roughly a factor of |
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207 | four and reduce its memory usage considerably. |
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208 | - implement Coro::SemaphoreSet purely in terms of Coro::Semaphore, |
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209 | for a nice speedup and vastly more correct behaviour. Also implement |
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210 | a new method "sem" to get at the underlying semaphore object. |
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211 | - implement Coro::Channel in terms of Coro::Semaphore, for a moderate |
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212 | (in comparison) 20-40% speedup. |
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213 | - used new SLF interface to reimplement Coro::Signal gaining |
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214 | some unknown (because I was too lazy), but certain, speedup, and also |
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215 | making signals reliable for the first time. |
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216 | - used new SLF interface and other optimisations to speed up async_pool |
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217 | by a factor of two. It also doesn't rely on perl's exception mechanism |
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218 | to exit anymore. The overhead for terminating an async_pool, coro over |
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219 | a normal async is now very small. |
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220 | - sped up coroutine creation/destruction by 40%. |
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221 | - forgot to include Coro/libcoro/README in the dist for all these years. |
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222 | - work around a freebsd pthreads bug (manual testcancel is required as |
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223 | pthread_cond_wait isn't a cancellation point on freebsd). |
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224 | - use new rouse functions to speed up and simplify Coro::BDB. |
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225 | - make "prefer perl native functions" work with threaded perls. |
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226 | - condense Coro::Debug ps output, hint at v and w flags. |
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227 | - (libcoro) lots of minor cleanups and portability improvements. |
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228 | |
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229 | 4.914 Wed Nov 19 12:54:18 CET 2008 |
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230 | - fix a disastrous bug in the readline optimisation |
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231 | introduced in 4.801. |
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232 | |
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233 | 4.913 Sat Nov 15 07:58:28 CET 2008 |
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234 | - async_pool did free a scalar value twice |
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235 | ("Attempt to unreference..."). |
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236 | |
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237 | 4.912 Thu Nov 13 18:31:23 CET 2008 |
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238 | - minor cleanups. |
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239 | - use much larger stacks on linux and perl < 5.8.8. |
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240 | - Coro::Debug::new_unix_server did not unlink the socket |
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241 | when destroyed. |
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242 | |
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243 | 4.911 Tue Nov 11 04:26:17 CET 2008 |
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244 | - "port" to threaded perls. |
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245 | |
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246 | 4.91 Mon Nov 10 05:36:38 CET 2008 |
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247 | - the ->throw exception object no longer leaks. |
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248 | - creating a new cctx leaked a scopestack entry (memleak). |
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249 | - new coroutines didn't get created with a zero flags field |
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250 | (unknown impact). |
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251 | - calling ->throw on a not-yet-started coroutine should now work |
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252 | instead of being ignored. |
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253 | - ->throw is now supported on Coro::State objects. |
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254 | - clean up cctx creation code a bit. |
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255 | - entersub is actually a UNOP, not a LOGOP (not a bugfix). |
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256 | |
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257 | 4.9 Sat Nov 8 17:45:27 CET 2008 |
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258 | - (libcoro) did not preserve rbp with CORO_ASM (we are getting there). |
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259 | - (libcoro) no longer leak threads in the experimental pthread backend, |
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260 | also speed it up considerably. |
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261 | - (libcoro) do not rely on makecontext passing void *'s unscathed. |
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262 | - fix compiletime dependencies on libcoro in the Makefile. |
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263 | - cctx_count wasn't always updated properly. |
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264 | - Coro::State::cctx_stacksize wasn't applied correctly. |
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265 | - new function Coro::State::cctx_max_idle. |
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266 | - the default max number of idle C contexts is now 4. |
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267 | - (libcoro) try harder to get _setjmp/_longjmp. |
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268 | - (libcoro) cleanup and extend the libcoro API to officially |
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269 | allow the creation of empty source contexts. |
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270 | - very experimental workaround for the totally broken netbsd platform. |
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271 | - tried to hack around openbsd bugs. |
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272 | |
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273 | 4.804 Wed Nov 5 16:36:00 CET 2008 |
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274 | - Coro::Debug::new_unix_server would not create a non-blocking listening |
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275 | socket, sometimes causing freezes. |
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276 | - (libcoro) fix misaligned stack points for setjmp and assembly |
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277 | methods, which can cause crashes on x86/x86_64 with a sufficiently |
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278 | aggressive compiler. |
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279 | - new function: Coro::Debug::new_tcp_server. |
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280 | - move ->throw into the Coro class because it only works on coro objects. |
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281 | |
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282 | 4.803 Mon Nov 3 17:16:12 CET 2008 |
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283 | - (libcoro) use a global asm statement to become independent of gcc |
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284 | otpimisations for CORO_ASM (thanks to pippijn for the idea). |
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285 | - try to workaround yet another broken bsd, this time dragonfly. |
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286 | |
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287 | 4.802 Thu Oct 30 10:56:12 CET 2008 |
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288 | - support -fno-omit-frame-pointer on x86 with the assembly method. |
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289 | - tune 01_unblock.t tests a bit. |
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290 | |
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291 | 4.801 Wed Oct 22 18:33:37 CEST 2008 |
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292 | - improve readline speed for very long "lines". |
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293 | - backport to 5.8.8. |
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294 | |
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295 | 4.8 Thu Oct 2 13:34:40 CEST 2008 |
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296 | - new function Coro::AIO::aio_wait. |
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297 | - Coro.:AIO and Coro::BDB now "use Coro::AnyEvent". |
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298 | - greatly speed up and reduce memory usage of Coro::AIO requests. |
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299 | - implement some other µ-optimisations. |
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300 | |
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301 | 4.749 Mon Sep 29 14:40:12 CEST 2008 |
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302 | - port to slow and broken pseudo-threaded perls. (courtesy pippijn). |
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303 | |
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304 | 4.748 Sat Sep 27 14:03:19 CEST 2008 |
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305 | - implement, but do not document, PerlIO::cede(granularity). |
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306 | - Coro::Storable forgot to wrap Storable::pstore. |
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307 | - work around the multitude of leaks and memory corruption |
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308 | bugs in PerlIO::via by using our own C-level perliol. As a side |
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309 | effect, Coro::Storable is now much, much, much faster. |
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310 | |
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311 | 4.747 Tue Sep 23 01:59:41 CEST 2008 |
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312 | - fix a per-cv memleak (one empty array was leaked per |
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313 | code reference). |
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314 | - avoid a crash in coro->call|rss when the coroutine was already |
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315 | destroyed (most noticably when using Coro::Debug::ps :) |
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316 | - also protect *Storable::FILE. |
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317 | - push up default storable granularity to 20ms. |
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318 | |
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319 | 4.746 Sun Sep 21 03:22:20 CEST 2008 |
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320 | - be more insistent on locking Storable against reentrancy |
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321 | in Coro::Storable. |
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322 | - move swap_def?v and throw to Coro::State, as documented. |
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323 | |
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324 | 4.745 Thu Jul 24 00:14:38 CEST 2008 |
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325 | - remove debugging code related to MgPV_nolen_const, also try to |
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326 | make it compile with perl 5.8.6 (yes, apple apparently loves |
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327 | outdated software). Reported by John S. |
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328 | |
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329 | 4.744 Tue Jul 8 22:06:35 CEST 2008 |
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330 | - correctly provide default DIE/WARN handlers as documented. |
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331 | - also overwrite PL_vtbl_sigelem.svt_clear, even though current |
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332 | implementations inside perl work fine for us. |
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333 | |
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334 | 4.743 Mon Jun 16 00:21:57 CEST 2008 |
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335 | - when using Coro::EV without running EV::loop it could |
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336 | result in busy-waiting for events, this has been fixed. |
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337 | - reduce codesize and improve performance by using EV_DEFAULT_UC. |
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338 | |
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339 | 4.742 Sat May 31 14:10:21 CEST 2008 |
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340 | - implement a workaround for (some) perl <5.8.8 versions. |
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341 | - require EV 3.3+. |
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342 | |
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343 | 4.741 Fri May 30 23:33:09 CEST 2008 |
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344 | - tell netbsd how utterly broken their imitation of an OS is |
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345 | and refuse to build by default if pthreads are in use. |
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346 | - switch to "s" method on all bsd's by default, as their ucontext |
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347 | stuff seems just too broken. |
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348 | - fix a bug in Coro::Select. |
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349 | |
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350 | 4.74 Thu May 29 20:05:31 CEST 2008 |
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351 | - do not test Coro::LWP for lack of dependencies. |
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352 | - do not test Coro::Select for lack of working perls. |
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353 | |
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354 | 4.73 Thu May 29 2008 |
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355 | - fix a bug in Coro::EV which would cause it to block despite |
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356 | there being runnable coroutines. |
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357 | - sprinkle "no warnings" freely over everything, also suppress |
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358 | warnings for some other modules. |
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359 | - fix typo in WSAEWOULDBLOCK. |
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360 | |
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361 | 4.72 Sun May 25 05:14:36 CEST 2008 |
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362 | - tweak META.yaml a bit, unfortunately, there is no documented way |
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363 | to have optional dependencies with CPAN. doh :( |
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364 | - avoid running some tests on windows because they would fail due to |
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365 | perl bug (broken fork, broken pipes...). |
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366 | - work around perl on windows bugs where perl returns undocumented |
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367 | error codes for sysread, syswrite etc. by taking advantage |
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368 | of AnyEvent's workaround for that problem. |
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369 | - use AnyEvent::Util::fh_nonblocking in Coro::Handle to work around |
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370 | a common perl implementation bug on windows. |
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371 | - use unix domain sockets in testsuite to work around |
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372 | common perl implementation bugs on widows (they are emulated by |
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373 | tcp sockets on windows. ugh.) |
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374 | |
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375 | 4.71 Sat May 24 20:01:27 CEST 2008 |
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376 | - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()"). |
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377 | - take advantage of async name resolution of AnyEvent::Util. |
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378 | - work around brutal inet_aton override in Coro::LWP. |
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379 | - take advantage of the readyhook in Coro::EV, for smoother |
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380 | scheduling. |
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381 | |
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382 | 4.7 Sun May 11 00:32:19 CEST 2008 |
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383 | - completely reworked the Coro manpage. |
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384 | - added Coro::AnyEvent, generic event loop integration. |
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385 | - implement cancel, ready and kill commands in Coro::Debug. |
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386 | - document find_coro in Coro::Debug. |
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387 | - incompatible change: rename has_stack to has_cctx. |
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388 | - Coro::AIO and Coro::BDB no longer force event model detection, |
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389 | use AnyEvent::AIO and AnyEvent::BDB. |
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390 | |
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391 | 4.6 Sat Apr 26 10:05:14 CEST 2008 |
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392 | - INCOMPATIBLE CHANGE: sub/code attributes are no longer supported |
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393 | by the Coro module. It was a mistake to have it in the first place. |
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394 | - (experimental) support for activestate perl 5.10 (method "w"). |
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395 | - (experimental) support for strawberry perl (method "a"). |
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396 | - coro_sigelem_set did not return a value although it had to, |
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397 | actual impact unknown. |
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398 | |
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399 | 4.51 Mon Apr 14 13:28:27 CEST 2008 |
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400 | - make it compile again on 5.8. |
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401 | |
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402 | 4.50 Thu Apr 10 09:43:17 CEST 2008 |
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403 | - I did it twice! (see 4.49). |
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404 | |
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405 | 4.49 Sun Apr 6 21:23:31 CEST 2008 |
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406 | - grr, instead of compiling the recent changes on 5.10 only they |
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407 | were compiled on 5.8 only. |
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408 | |
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409 | 4.48 Sun Apr 6 20:36:46 CEST 2008 |
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410 | - allow coroutine switches during eval's under 5.10.x, as it seems |
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411 | the parser is a per-interpreter option now, so this is safe |
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412 | (this might fix the odd crashing bug). |
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413 | - drop support for 5.9.x versions: they are dead, jim. |
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414 | |
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415 | 4.47 Sun Apr 6 00:37:52 CEST 2008 |
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416 | - force cctx allocation on API calls: we know we need to force one |
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417 | and gcc actually manages to confuse our heuristic nowadays, |
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418 | leading to crashes and worse. |
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419 | - document force_cctx. |
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420 | |
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421 | 4.46 Fri Apr 4 22:05:43 CEST 2008 |
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422 | - upgrade libcoro, resulting in pthread-backend (which was only created |
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423 | to fulfill the rules of the programming languages shootout). |
| 7 | |
424 | |
| 8 | 4.45 Thu Mar 13 11:55:36 CET 2008 |
425 | 4.45 Thu Mar 13 11:55:36 CET 2008 |
| 9 | - fix a file leaking bug in eg/mhyttpd that would allow |
426 | - fix a file leaking bug in eg/mhyttpd that would allow |
| 10 | downloading of any file (reported by oesi). |
427 | downloading of any file (reported by oesi). |
| 11 | - fix deadlock bug in Coro::Channel (reported by Richard Hundt) |
428 | - fix deadlock bug in Coro::Channel (reported by Richard Hundt) |
