| 1 | Revision history for Perl extension Coro. |
1 | Revision history for Perl extension Coro. |
| 2 | |
2 | |
| 3 | 0.45 |
3 | TODO: should explore PerlIO::coroaio (perl leaks like hell). |
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4 | TODO: maybe implement a default message channel, very much like Erlang's |
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5 | actor model (which is cool in a lot of important aspects (failures!), |
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6 | but very lacking in others (higher level ipc)). |
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7 | |
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8 | TODO: Coro/Intro |
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9 | - wrote a small introduction - Coro::Intro. |
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10 | - convert Coro::Timer, Coro::Select and Coro::Util to rouse API. |
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11 | - Coro::Select did errornously dup the file descriptors |
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12 | and didn't work with all AnyEvent backends. |
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13 | - disassociate c contexts from coro objects - this is agruably more |
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14 | correct, but mostly allows sharing of cctxs between coro and state |
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15 | objects, for added memory savings and speed increases. |
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16 | - bumped $Coro::POOL_RSS up to 32kb by default. |
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17 | - no longer set the optype to OP_CUSTOM, as B::* understandably |
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18 | doesn't like this very much (and we *are* a type of entersub). |
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19 | - implement state cloning, just to prove that call/cc can be done. |
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20 | - automatically load Coro::AnyEvent in Coro::Handle. |
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21 | - wrap ->cancel calls in eval inside Coro::Handle as EV watchers |
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22 | do not have this method (and don't need it either). |
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23 | - speed up generic anyevent methods in Coro::Handle by using rouse |
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24 | callbacks. |
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25 | - allow coroutines in $Coro::IDLE, speeding up Coro::AnyEvent and |
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26 | others. It also makes the debugger happier, as you can trace |
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27 | through the idle threads now. |
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28 | - eg/event was pretty broken. |
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29 | - better 5.8.6 compatibility. |
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30 | |
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31 | 5.0 Thu Nov 20 10:35:05 CET 2008 |
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32 | - NEW ARCHITECTURE: use the latest 4.x version if you experience |
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33 | stability issues. |
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34 | - bump API version to 7 - all dependents must be recompiled. |
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35 | - removed timed_* functions - they were not being used anyways |
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36 | and should be replaced by a more generic mechanism - |
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37 | and were annoying to support anyways :) |
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38 | - removed SemaphoreSet's waiter method - use sem method instead. |
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39 | - Coro::Semaphore->adjust didn't correctly wake up enough waiters. |
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40 | - async_pool did free a scalar value twice |
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41 | ("Attempt to unreference..."). |
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42 | - fix a longstanding bug where calling terminate on a coro that |
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43 | was waiting for a semaphore that was just becoming available |
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44 | would cause a deadlock (semaphore would get into a state where |
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45 | it was available but waiters were still blocked). |
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46 | - calling throw on a coroutine that is waiting for a semaphore will |
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47 | no longer make it acquire the semaphore (and thus leak a count). |
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48 | - perl's process emulation is now not even theoretically supported |
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49 | anymore. |
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50 | - new functions Coro::rouse_cb and Coro::rouse_wait for easier |
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51 | conversion of callback-style to blocking-style. |
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52 | - new methods $coro->schedule_to and ->cede_to, to specifically |
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53 | schedule or cede to a specific coroutine. |
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54 | - new function Coro::Semaphore::wait. |
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55 | - use named constants in Coro::Channel (Richard Hundt). |
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56 | - directly patch the entersub opcode calling SLF functions (cede, |
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57 | transfer and so on). this does speed up context switching, but |
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58 | more importanly, it frees us from the hardcoded behaviour of |
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59 | entersub, so we might actually be able to return something from |
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60 | those functions and atcually create new ones. |
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61 | - take advantage of __builtin_frame_address on gcc. |
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62 | - expose THX in coroapi (not sure whether this was a wise decision, |
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63 | as "threaded" perls are running at half speed anyways). |
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64 | - implement execute_slf (schedule-like-function) interface that makes |
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65 | it possible to implement schedule-like-functions in XS. |
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66 | - use new SLF interface to massively speed up Coro::EV by roughly a |
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67 | factor of two. |
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68 | - used new SLF interface to massively speed up Coro::Semaphore by a |
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69 | factor of three. |
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70 | - used new SLF interface to speed up Coro::AIO by roughly a factor of |
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71 | four and reduce its memory usage considerably. |
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72 | - implement Coro::SemaphoreSet purely in terms of Coro::Semaphore, |
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73 | for a nice speedup and vastly more correct behaviour. Also implement |
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74 | a new method "sem" to get at the underlying semaphore object. |
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75 | - implement Coro::Channel in terms of Coro::Semaphore, for a moderate |
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76 | (in comparison) 20-40% speedup. |
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77 | - used new SLF interface to reimplement Coro::Signal gaining |
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78 | some unknown (because I was too lazy), but certain, speedup, and also |
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79 | making signals reliable for the first time. |
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80 | - used new SLF interface and other optimisations to speed up async_pool |
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81 | by a factor of two. It also doesn't rely on perl's exception mechanism |
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82 | to exit anymore. The overhead for terminating an async_pool, coro over |
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83 | a normal async is now very small. |
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84 | - sped up coroutine creation/destruction by 40%. |
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85 | - forgot to include Coro/libcoro/README in the dist for all these years. |
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86 | - work around a freebsd pthreads bug (manual testcancel is required as |
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87 | pthread_cond_wait isn't a cancellation point on freebsd). |
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88 | - use new rouse functions to speed up and simplify Coro::BDB. |
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89 | - make "prefer perl native functions" work with threaded perls. |
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90 | - condense Coro::Debug ps output, hint at v and w flags. |
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91 | - (libcoro) lots of minor cleanups and portability improvements. |
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92 | |
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93 | 4.914 Wed Nov 19 12:54:18 CET 2008 |
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94 | - fix a disastrous bug in the readline optimisation |
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95 | introduced in 4.801. |
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96 | |
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97 | 4.913 Sat Nov 15 07:58:28 CET 2008 |
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98 | - async_pool did free a scalar value twice |
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99 | ("Attempt to unreference..."). |
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100 | |
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101 | 4.912 Thu Nov 13 18:31:23 CET 2008 |
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102 | - minor cleanups. |
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103 | - use much larger stacks on linux and perl < 5.8.8. |
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104 | - Coro::Debug::new_unix_server did not unlink the socket |
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105 | when destroyed. |
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106 | |
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107 | 4.911 Tue Nov 11 04:26:17 CET 2008 |
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108 | - "port" to threaded perls. |
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109 | |
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110 | 4.91 Mon Nov 10 05:36:38 CET 2008 |
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111 | - the ->throw exception object no longer leaks. |
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112 | - creating a new cctx leaked a scopestack entry (memleak). |
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113 | - new coroutines didn't get created with a zero flags field |
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114 | (unknown impact). |
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115 | - calling ->throw on a not-yet-started coroutine should now work |
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116 | instead of being ignored. |
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117 | - ->throw is now supported on Coro::State objects. |
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118 | - clean up cctx creation code a bit. |
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119 | - entersub is actually a UNOP, not a LOGOP (not a bugfix). |
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120 | |
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121 | 4.9 Sat Nov 8 17:45:27 CET 2008 |
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122 | - (libcoro) did not preserve rbp with CORO_ASM (we are getting there). |
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123 | - (libcoro) no longer leak threads in the experimental pthread backend, |
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124 | also speed it up considerably. |
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125 | - (libcoro) do not rely on makecontext passing void *'s unscathed. |
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126 | - fix compiletime dependencies on libcoro in the Makefile. |
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127 | - cctx_count wasn't always updated properly. |
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128 | - Coro::State::cctx_stacksize wasn't applied correctly. |
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129 | - new function Coro::State::cctx_max_idle. |
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130 | - the default max number of idle C contexts is now 4. |
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131 | - (libcoro) try harder to get _setjmp/_longjmp. |
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132 | - (libcoro) cleanup and extend the libcoro API to officially |
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133 | allow the creation of empty source contexts. |
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134 | - very experimental workaround for the totally broken netbsd platform. |
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135 | - tried to hack around openbsd bugs. |
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136 | |
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137 | 4.804 Wed Nov 5 16:36:00 CET 2008 |
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138 | - Coro::Debug::new_unix_server would not create a non-blocking listening |
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139 | socket, sometimes causing freezes. |
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140 | - (libcoro) fix misaligned stack points for setjmp and assembly |
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141 | methods, which can cause crashes on x86/x86_64 with a sufficiently |
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142 | aggressive compiler. |
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143 | - new function: Coro::Debug::new_tcp_server. |
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144 | - move ->throw into the Coro class because it only works on coro objects. |
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145 | |
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146 | 4.803 Mon Nov 3 17:16:12 CET 2008 |
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147 | - (libcoro) use a global asm statement to become independent of gcc |
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148 | otpimisations for CORO_ASM (thanks to pippijn for the idea). |
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149 | - try to workaround yet another broken bsd, this time dragonfly. |
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150 | |
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151 | 4.802 Thu Oct 30 10:56:12 CET 2008 |
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152 | - support -fno-omit-frame-pointer on x86 with the assembly method. |
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153 | - tune 01_unblock.t tests a bit. |
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154 | |
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155 | 4.801 Wed Oct 22 18:33:37 CEST 2008 |
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156 | - improve readline speed for very long "lines". |
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157 | - backport to 5.8.8. |
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158 | |
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159 | 4.8 Thu Oct 2 13:34:40 CEST 2008 |
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160 | - new function Coro::AIO::aio_wait. |
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161 | - Coro.:AIO and Coro::BDB now "use Coro::AnyEvent". |
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162 | - greatly speed up and reduce memory usage of Coro::AIO requests. |
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163 | - implement some other µ-optimisations. |
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164 | |
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165 | 4.749 Mon Sep 29 14:40:12 CEST 2008 |
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166 | - port to slow and broken pseudo-threaded perls. (courtesy pippijn). |
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167 | |
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168 | 4.748 Sat Sep 27 14:03:19 CEST 2008 |
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169 | - implement, but do not document, PerlIO::cede(granularity). |
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170 | - Coro::Storable forgot to wrap Storable::pstore. |
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171 | - work around the multitude of leaks and memory corruption |
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172 | bugs in PerlIO::via by using our own C-level perliol. As a side |
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173 | effect, Coro::Storable is now much, much, much faster. |
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174 | |
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175 | 4.747 Tue Sep 23 01:59:41 CEST 2008 |
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176 | - fix a per-cv memleak (one empty array was leaked per |
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177 | code reference). |
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178 | - avoid a crash in coro->call|rss when the coroutine was already |
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179 | destroyed (most noticably when using Coro::Debug::ps :) |
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180 | - also protect *Storable::FILE. |
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181 | - push up default storable granularity to 20ms. |
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182 | |
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183 | 4.746 Sun Sep 21 03:22:20 CEST 2008 |
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184 | - be more insistent on locking Storable against reentrancy |
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185 | in Coro::Storable. |
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186 | - move swap_def?v and throw to Coro::State, as documented. |
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187 | |
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188 | 4.745 Thu Jul 24 00:14:38 CEST 2008 |
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189 | - remove debugging code related to MgPV_nolen_const, also try to |
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190 | make it compile with perl 5.8.6 (yes, apple apparently loves |
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191 | outdated software). Reported by John S. |
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192 | |
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193 | 4.744 Tue Jul 8 22:06:35 CEST 2008 |
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194 | - correctly provide default DIE/WARN handlers as documented. |
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195 | - also overwrite PL_vtbl_sigelem.svt_clear, even though current |
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196 | implementations inside perl work fine for us. |
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197 | |
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198 | 4.743 Mon Jun 16 00:21:57 CEST 2008 |
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199 | - when using Coro::EV without running EV::loop it could |
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200 | result in busy-waiting for events, this has been fixed. |
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201 | - reduce codesize and improve performance by using EV_DEFAULT_UC. |
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202 | |
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203 | 4.742 Sat May 31 14:10:21 CEST 2008 |
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204 | - implement a workaround for (some) perl <5.8.8 versions. |
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205 | - require EV 3.3+. |
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206 | |
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207 | 4.741 Fri May 30 23:33:09 CEST 2008 |
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208 | - tell netbsd how utterly broken their imitation of an OS is |
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209 | and refuse to build by default if pthreads are in use. |
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210 | - switch to "s" method on all bsd's by default, as their ucontext |
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211 | stuff seems just too broken. |
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212 | - fix a bug in Coro::Select. |
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213 | |
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214 | 4.74 Thu May 29 20:05:31 CEST 2008 |
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215 | - do not test Coro::LWP for lack of dependencies. |
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216 | - do not test Coro::Select for lack of working perls. |
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217 | |
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218 | 4.73 Thu May 29 2008 |
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219 | - fix a bug in Coro::EV which would cause it to block despite |
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220 | there being runnable coroutines. |
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221 | - sprinkle "no warnings" freely over everything, also suppress |
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222 | warnings for some other modules. |
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223 | - fix typo in WSAEWOULDBLOCK. |
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224 | |
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225 | 4.72 Sun May 25 05:14:36 CEST 2008 |
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226 | - tweak META.yaml a bit, unfortunately, there is no documented way |
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227 | to have optional dependencies with CPAN. doh :( |
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228 | - avoid running some tests on windows because they would fail due to |
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229 | perl bug (broken fork, broken pipes...). |
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230 | - work around perl on windows bugs where perl returns undocumented |
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231 | error codes for sysread, syswrite etc. by taking advantage |
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232 | of AnyEvent's workaround for that problem. |
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233 | - use AnyEvent::Util::fh_nonblocking in Coro::Handle to work around |
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234 | a common perl implementation bug on windows. |
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235 | - use unix domain sockets in testsuite to work around |
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236 | common perl implementation bugs on widows (they are emulated by |
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237 | tcp sockets on windows. ugh.) |
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238 | |
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239 | 4.71 Sat May 24 20:01:27 CEST 2008 |
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240 | - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()"). |
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241 | - take advantage of async name resolution of AnyEvent::Util. |
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242 | - work around brutal inet_aton override in Coro::LWP. |
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243 | - take advantage of the readyhook in Coro::EV, for smoother |
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244 | scheduling. |
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245 | |
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246 | 4.7 Sun May 11 00:32:19 CEST 2008 |
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247 | - completely reworked the Coro manpage. |
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248 | - added Coro::AnyEvent, generic event loop integration. |
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249 | - implement cancel, ready and kill commands in Coro::Debug. |
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250 | - document find_coro in Coro::Debug. |
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251 | - incompatible change: rename has_stack to has_cctx. |
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252 | - Coro::AIO and Coro::BDB no longer force event model detection, |
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253 | use AnyEvent::AIO and AnyEvent::BDB. |
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254 | |
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255 | 4.6 Sat Apr 26 10:05:14 CEST 2008 |
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256 | - INCOMPATIBLE CHANGE: sub/code attributes are no longer supported |
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257 | by the Coro module. It was a mistake to have it in the first place. |
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258 | - (experimental) support for activestate perl 5.10 (method "w"). |
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259 | - (experimental) support for strawberry perl (method "a"). |
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260 | - coro_sigelem_set did not return a value although it had to, |
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261 | actual impact unknown. |
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262 | |
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263 | 4.51 Mon Apr 14 13:28:27 CEST 2008 |
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264 | - make it compile again on 5.8. |
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265 | |
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266 | 4.50 Thu Apr 10 09:43:17 CEST 2008 |
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267 | - I did it twice! (see 4.49). |
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268 | |
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269 | 4.49 Sun Apr 6 21:23:31 CEST 2008 |
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270 | - grr, instead of compiling the recent changes on 5.10 only they |
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271 | were compiled on 5.8 only. |
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272 | |
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273 | 4.48 Sun Apr 6 20:36:46 CEST 2008 |
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274 | - allow coroutine switches during eval's under 5.10.x, as it seems |
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275 | the parser is a per-interpreter option now, so this is safe |
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276 | (this might fix the odd crashing bug). |
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277 | - drop support for 5.9.x versions: they are dead, jim. |
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278 | |
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279 | 4.47 Sun Apr 6 00:37:52 CEST 2008 |
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280 | - force cctx allocation on API calls: we know we need to force one |
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281 | and gcc actually manages to confuse our heuristic nowadays, |
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282 | leading to crashes and worse. |
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283 | - document force_cctx. |
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284 | |
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285 | 4.46 Fri Apr 4 22:05:43 CEST 2008 |
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286 | - upgrade libcoro, resulting in pthread-backend (which was only created |
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287 | to fulfill the rules of the programming languages shootout). |
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288 | |
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289 | 4.45 Thu Mar 13 11:55:36 CET 2008 |
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290 | - fix a file leaking bug in eg/mhyttpd that would allow |
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291 | downloading of any file (reported by oesi). |
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292 | - fix deadlock bug in Coro::Channel (reported by Richard Hundt) |
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293 | (also add testcase). |
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294 | - support Broadcast option in Coro::Socket (patch by Richard Hundt, |
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295 | apparently having loads of fun with that). |
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296 | - implement $state->swap_defsv, ->swap_defav and document ->throw. |
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297 | |
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298 | 4.4 Wed Feb 13 16:44:29 CET 2008 |
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299 | - only assume .cfi pseudo isns exist on GNU/Linux. |
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300 | - add get_timed method to Coro::Channels. |
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301 | - fixed Coro::Debug manpage. |
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302 | - perl 5.11 compatbility improvement based on patch by |
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303 | Andreas König. |
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304 | |
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305 | 4.37 Sun Jan 20 11:25:23 CET 2008 |
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306 | - soften the check for an active parser for perl 5.10 (avoiding |
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307 | "Coro::State::transfer called while parsing" in many cases). |
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308 | |
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309 | 4.36 Sun Jan 13 10:53:56 CET 2008 |
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310 | - reset diehook when terminating from an async_pool as to not |
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311 | trigger any __DIE__ handlers. |
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312 | |
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313 | 4.35 Sun Jan 13 04:14:13 CET 2008 |
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314 | - "bt" debug command now displays any exceptions |
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315 | from longmess and also skips the innermost |
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316 | stackframes, giving more useufl output. |
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317 | - allow backtraces in coroutines blocked in Coro::EV, |
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318 | at a <1% speed hit. |
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319 | - handle localising of $SIG{__WARN__} and __DIE__ |
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320 | properly (with a proper amount of dirty hacking). |
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321 | |
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322 | 4.34 Sat Dec 22 17:49:53 CET 2007 |
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323 | - upgrade to EV version 2.0 API. |
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324 | |
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325 | 4.33 Mon Dec 17 08:36:12 CET 2007 |
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326 | - make Coro::AIO etc. loadable in the absence of EV. |
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327 | |
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328 | 4.32 Mon Dec 17 07:46:02 CET 2007 |
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329 | - majorly improved Coro::Handle's performance with Coro::EV. |
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330 | - implemented the until now mythical Coro::BDB module. |
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331 | - specialcase EV in Coro::AIO and Coro::BDB for extra speed. |
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332 | |
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333 | 4.31 Wed Dec 5 12:32:39 CET 2007 |
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334 | - remove warn statement form Coro::Util. |
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335 | |
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336 | 4.3 Tue Dec 4 20:33:14 CET 2007 |
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337 | - calls to the idle function could cause stack corruption |
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338 | when the stack changed. |
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339 | - do no longer rely on the presence of EV::DNS if EV is used |
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340 | (because it is gone), but instead take avdantage of EV::ADNS |
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341 | if available. |
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342 | - add ($) prototypes to all functions in Coro::Storable. |
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343 | - use a conventional (safer) idle callback in Coro::EV. |
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344 | - do accept quickly in Coro::Debug to avoid endless loops. |
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345 | |
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346 | 4.22 Fri Nov 30 16:04:04 CET 2007 |
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347 | - really use optimised versions for Event and EV in Coro::Util |
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348 | and Coro::Handle. |
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349 | |
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350 | 4.21 Sun Nov 25 10:48:59 CET 2007 |
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351 | - fix a spurious memory read. |
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352 | - Coro::EV no longer keeps the eventloop "alive". |
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353 | |
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354 | 4.2 Fri Nov 9 20:47:05 CET 2007 |
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355 | - enable/disable tracing from a new coroutine, not a pooled one. |
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356 | - fix a memleak in Coro::Event. |
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357 | - removed killall call from fork_eval. |
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358 | - made sure store_fd is already loaded so that fork_eval |
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359 | does not have to parse autoload in each subprocess. |
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360 | - only use assembly method if -O switch is in $Config{optimize}. |
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361 | - add (optional) Coro::EV module, so far the best event loop module |
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362 | directly supported by Coro. |
|
|
363 | - if the event model is EV, use EV::DNS to resolve |
|
|
364 | stuff in Coro::Util. |
|
|
365 | - don't get confused by multiple event notifications in Coro::Handle. |
|
|
366 | - initial support for EV (libevent interface). |
|
|
367 | - require Event and EV using configure_requires, to force their existance. |
|
|
368 | |
|
|
369 | 4.13 Wed Oct 24 07:26:45 CEST 2007 |
|
|
370 | - add Coro::Storable::blocking_thaw. |
|
|
371 | - use a vastly more complicated technique to localise |
|
|
372 | $SIG{__WARN/DIE__} that also works on perls <= 5.8.8. |
|
|
373 | - use a coroutine for the idle callback Coro::Event, |
|
|
374 | instead of running Event in the current coroutine context. |
|
|
375 | This also catches recursive invocations. |
|
|
376 | - actually report fork errors in gethostbyname and inet_aton. |
|
|
377 | |
|
|
378 | 4.11 Thu Oct 11 02:40:24 CEST 2007 |
|
|
379 | - port to threaded perls. |
|
|
380 | |
|
|
381 | 4.1 Thu Oct 11 02:38:16 CEST 2007 |
|
|
382 | - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now |
|
|
383 | be local to each coro (see Coro::State). |
|
|
384 | - incompatible change: for very deep reasons, cede and cede_notself |
|
|
385 | cannot return anything, so nothing will be returned. |
|
|
386 | - possibly bring back 5.10 compatibility (untested). |
|
|
387 | - work around stupid (and wrong) warning on 5.10 :(. |
|
|
388 | - overlay the saved state over the context stack. This saves |
|
|
389 | a few hundred bytes per coroutine on average and also |
|
|
390 | speeds up context switching a bit. |
|
|
391 | - further tune default stack sizes. |
|
|
392 | - (more) correctly calculate stack usage in coro_rss. |
|
|
393 | - Coro::Storable::blocking_* did not properly lock |
|
|
394 | resulting in races between coroutines. |
|
|
395 | - added Coro::Storable::guard. |
|
|
396 | - stopping to trace a coroutine could destroy the cctx of |
|
|
397 | an unrelated coroutine. |
|
|
398 | - explain the relationship between Perl and C coroutines in |
|
|
399 | more detail in Coro::State. |
|
|
400 | - Coro::Util::inet_aton did not short-circuit dotted quad forms, |
|
|
401 | causing a fork per resolve. This also affected Coro::Socket. |
|
|
402 | - switch to a separate stack in $coro->call/eval to avoid |
|
|
403 | invalidating pointers. |
|
|
404 | |
|
|
405 | 4.03 Sat Oct 6 21:24:00 CEST 2007 |
|
|
406 | - added Coro::throw method. |
|
|
407 | - minor code cleanups. |
|
|
408 | |
|
|
409 | 4.02 Sat Oct 6 02:36:47 CEST 2007 |
|
|
410 | - fix a very minor per-coroutine memleak (a single codereference). |
|
|
411 | - fixed a bug where the currently in-use c context would be freed |
|
|
412 | prematurely (can happen only when programs change the stacksize |
|
|
413 | or use tracing). |
|
|
414 | - tracing can no longer keep a coro alive after it terminated. |
|
|
415 | - do static branch prediction in the common path for gcc. gives |
|
|
416 | about 2-5% speed improvement here. |
|
|
417 | |
|
|
418 | 4.01 Fri Oct 5 22:10:49 CEST 2007 |
|
|
419 | - instead of recreating *a* standard output handle we simply |
|
|
420 | use STDOUT, which is faster and hopefully more robust. |
|
|
421 | |
|
|
422 | 4.0 Fri Oct 5 12:56:00 CEST 2007 |
|
|
423 | - incompatibly changed Coro::Storable::freeze. |
|
|
424 | - major new feature: added Coro::Debug, for interactive coroutine |
|
|
425 | debugging, tracing and much more. |
|
|
426 | - major bug fix: unbelievable, but true: $_, $/ and many other |
|
|
427 | "saved" variables actually weren't being saved. This has been fixed, |
|
|
428 | of course, while increasing performance while losing all the save |
|
|
429 | flags. |
|
|
430 | - save flags are gone, and all the api functions dealing with them. |
|
|
431 | - added Coro::Semaphore::adjust. |
|
|
432 | - added Coro::Util::fork_eval. |
|
|
433 | - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}. |
|
|
434 | - added Coro::killall. |
|
|
435 | - reduce initial stack sizes to allow for "micro-coroutines". |
|
|
436 | - better async_pool resource management, moved parts of async_pool |
|
|
437 | handling to XS (major speed improvement). |
|
|
438 | - actually croak before modifying important data structures. |
|
|
439 | - refuse to transfer while compiling. |
|
|
440 | - possibly support eval EXPR better now. |
|
|
441 | - enable assembly per default on linux+bsd x86+amd64. |
|
|
442 | - all internal members were renamed _something for easier subclassing. |
|
|
443 | - many minor tweaks. |
|
|
444 | |
|
|
445 | 3.63 Wed May 16 14:10:06 CEST 2007 |
|
|
446 | - implement handcoded assembly for x86/amd64 SVR ABI. |
|
|
447 | |
|
|
448 | 3.62 Fri Apr 27 21:36:06 CEST 2007 |
|
|
449 | - upgrade libcoro (which might set unwind info correctly). |
|
|
450 | - change default on linux to setjmp/longjmp. |
|
|
451 | |
|
|
452 | 3.61 Thu Apr 19 12:36:18 CEST 2007 |
|
|
453 | - Coro::Storable caused an endless loop when thawing invalid |
|
|
454 | pst's sometimes. |
|
|
455 | - use a Semaphore in Coro::Storable, as Storable doesn't |
|
|
456 | seem to be reentrant (although it is documented to |
|
|
457 | be threadsafe...). |
|
|
458 | - fix Coro::Signal to bring back the original unreliable |
|
|
459 | but stateful semantics. |
|
|
460 | - fixed a lot of typos in Coro.pm (patch submitted by David |
|
|
461 | Steinbrunner, which applied flawlessly). |
|
|
462 | |
|
|
463 | 3.6 Sat Apr 14 17:13:31 CEST 2007 |
|
|
464 | - added some bugfixes to get eg/myhttpd working again. |
|
|
465 | - added Coro::Storable for often-cede'ing freeze/thaw. |
|
|
466 | - try to do a clean exit when a coroutine calls exit |
|
|
467 | (EXPERIMENTAL). |
|
|
468 | - got rid of indirect call through _coro_init. |
|
|
469 | - updated the partly antique examples in eg/ to |
|
|
470 | work again and be a bit less magic, too. |
|
|
471 | - fixed Coro::Signal semantics to work as documented again. |
|
|
472 | |
|
|
473 | 3.55 Sun Mar 25 01:20:47 CET 2007 |
|
|
474 | - add SAVE_DEFFH to save the default filehandle and enable |
|
|
475 | it by default. |
|
|
476 | - finally move socket-operations from Coro::Socket to Coro::Handle |
|
|
477 | to be able to unblock foreign sockets. |
|
|
478 | - add Coro::State::save_also and guarded_save. |
|
|
479 | - add count accessor to Coro::Semaphore. |
|
|
480 | - add Coro::State::cctx_stacksize. |
|
|
481 | - just for the fun of it, do not rely on implicit context, |
|
|
482 | which can dramatically improve performance, but people |
|
|
483 | using windows-process-emulation perls do not care much about |
|
|
484 | performance. |
|
|
485 | |
|
|
486 | 3.51 Sun Mar 4 14:18:04 CET 2007 |
|
|
487 | - fixed a problem when you weakened references to Coro::State's |
|
|
488 | (patch by Yuval Kogman). |
|
|
489 | |
|
|
490 | 3.501 Wed Feb 28 12:44:07 CET 2007 |
|
|
491 | - rename some global symbols as macosx from hell redefines |
|
|
492 | them without asking. |
|
|
493 | |
|
|
494 | 3.5 Tue Feb 13 20:22:53 CET 2007 |
|
|
495 | - do AnyEvent model detection earlier, avoiding problems |
|
|
496 | caused by first using AnyEvent and later Coro::Event. |
|
|
497 | - implement and document Coro::Event event objects. |
|
|
498 | - fix a potential problem in Coro::Event causing crashes. |
|
|
499 | - initialise PL_comppad when creating a new coroutine, |
|
|
500 | avoids crashes on early coro destruction. |
|
|
501 | |
|
|
502 | 3.41 Mon Jan 22 19:19:49 CET 2007 |
|
|
503 | - readline on Coro::Handle did not support undefined $/, |
|
|
504 | nor did it deliver partial lines on EOF or error. |
|
|
505 | - implement malloc fallback for stack allocation because |
|
|
506 | stupid broken idiotic OSX has a stupid broken |
|
|
507 | idiotic fits-the-whole-os mmap "implementation" and |
|
|
508 | my dick feels longer if Coro is portable even to |
|
|
509 | obsolete platforms. |
|
|
510 | |
|
|
511 | 3.4 Fri Jan 19 21:52:54 CET 2007 |
|
|
512 | - remove t/09_timer.t, as it isn't really testing much |
|
|
513 | but was rather flaky in practise. |
|
|
514 | - async_pool coro would keep arguments and callback alive until |
|
|
515 | it was reused. |
|
|
516 | - cancellation of a coroutine could cause spurious idle calls |
|
|
517 | in cede_notself. |
|
|
518 | |
|
|
519 | 3.3 Sat Jan 6 03:45:00 CET 2007 |
|
|
520 | - implement $coro->on_destroy. |
|
|
521 | - Coro::Event blocking semantics have been changed, |
|
|
522 | documented and - hopefully - improved. |
|
|
523 | - fix nice adding, not subtracting, from priority. |
|
|
524 | - fix ->prio and api_is_ready (patch by Mark Hinds). |
|
|
525 | - fixed an assert ("... == prev__cctx->idle_te") |
|
|
526 | that could errronously trigger. |
|
|
527 | - fix various large and small memleaks. |
|
|
528 | - use a (hopefully) more stable cancel implementation |
|
|
529 | that immediately frees the coroutine data. |
|
|
530 | - cede/cede_notself return a status now. |
|
|
531 | - added Coro::guard function. |
|
|
532 | - added a global coroutine pool for jobs (on my machine, |
|
|
533 | I can create and execute 48k simple coros/s with async, |
|
|
534 | and 128k coros with async_pool). |
|
|
535 | - Coro::AIO now uses the coroutine priority as io priority. |
|
|
536 | |
|
|
537 | 3.2 Fri Dec 22 05:07:09 CET 2006 |
|
|
538 | - improve portability to slightly older perls. |
|
|
539 | - use cleaner coroutine destruction. |
|
|
540 | - simplify configuration for users. |
|
|
541 | - optionally (unrecommended) prefer perl functions over |
|
|
542 | their coro replacements. |
|
|
543 | |
|
|
544 | 3.11 Tue Dec 5 13:11:24 CET 2006 |
|
|
545 | - fixed some bogus assert's, but as perl.h disables assert even |
|
|
546 | without NDEBUG (thank you very much), not too many people should |
|
|
547 | notice (that did include myself). Andreas König noticed, though :) |
|
|
548 | - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have |
|
|
549 | it. Also noticed by Andreas König :) |
|
|
550 | - save/restore tainted status. |
|
|
551 | - verified to pass the testsuite on my 5.9.5. |
|
|
552 | |
|
|
553 | 3.1 Mon Dec 4 23:03:40 CET 2006 |
|
|
554 | - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow). |
|
|
555 | - incompatible change: transfer flags are now per-state. |
|
|
556 | - give a better error message on deadlock. |
|
|
557 | - document Coro::nready. |
|
|
558 | - enhanced testsuite. |
|
|
559 | |
|
|
560 | 3.01 Sun Dec 3 23:47:42 CET 2006 |
|
|
561 | - forgot to include Coro::Timer. |
|
|
562 | |
|
|
563 | 3.0 Sun Dec 3 22:57:25 CET 2006 |
|
|
564 | - the "FINALLY COMPLETELY STABLE" release (coming soon: |
|
|
565 | the "FAMOUS LAST WORDS" release). |
|
|
566 | - implement a new stack sharing algorithm, which uses a stack |
|
|
567 | pool (size currently hardcoded). |
|
|
568 | - make stack sharing mandatory (it no longer uses a heuristic). |
|
|
569 | - eval/die no longer cause weird problems under heavy use. |
|
|
570 | - Coro::Event could cause livelocks if it was used but |
|
|
571 | no Coro::Event watchers were used. |
|
|
572 | - Coro::Event now uses asynccheck as prepare does not |
|
|
573 | check for changed watchers. |
|
|
574 | - Coro::Event allows multiple waiting coros and will wake up one |
|
|
575 | per event. |
|
|
576 | - Coro::Event should be cleaner and more efficient now. |
|
|
577 | - new utility function Coro::unblock_sub. |
|
|
578 | - document the sad fact that Event is no longer reentrant. |
|
|
579 | - putting a coroutine into the ready queue twice could under |
|
|
580 | some circumstances lead to stack corruption. |
|
|
581 | - minor incompatibility: subclassing Coro::State is supported |
|
|
582 | directly now without going through a _coro_state member. |
|
|
583 | - state/coro switching is much faster now. |
|
|
584 | - very minor optimisations and code/documentation cleanup. |
|
|
585 | - avoid problems due to compiler inlining. |
|
|
586 | - removed timers from Coro::Timer -> use AnyEvent instead. |
|
|
587 | - replaced Coro::idle coroutine by (cleaner) idle handler. |
|
|
588 | - updated to newest libcoro. |
|
|
589 | - implement enhanced support for valgrind. |
|
|
590 | - implement is_ready and return value for ready. |
|
|
591 | - removed Coro::Cont, it was a misnomer (it's generators), |
|
|
592 | and it was somewhat annoying to get it right. Will come back |
|
|
593 | if somebody asks for it :) |
|
|
594 | - many ->wait methods and Coro::Event could return |
|
|
595 | spuriously without the event having happened. |
|
|
596 | |
|
|
597 | 2.5 Tue Nov 7 12:22:33 CET 2006 |
|
|
598 | - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket |
|
|
599 | use AnyEvent, moved them to Coro/. |
|
|
600 | - added Coro::LWP which contains all the uglyness required to |
|
|
601 | make LWP non-blocking. |
|
|
602 | - should work with perl 5.9.x now (Andreas König made me do it). |
|
|
603 | - fixed another bug in Coro::Select when the timeout was undef. |
|
|
604 | - reuse PL_start_env for all coros, saves some memory per coroutine. |
|
|
605 | - manage PL_top_env differently, hopefully to avoid panic: top_env. |
|
|
606 | - timeout argument was not properly used in Coro::Socket. |
|
|
607 | - allow limited forms of subclassing in Coro::Handle/Coro::Socket. |
|
|
608 | - emulate undocumented(!) functionality of IO::Socket required |
|
|
609 | by LWP(!!). |
|
|
610 | - updated eg/lwp to work with newer lwp's. |
|
|
611 | - remove "FATAL: uncaught exception" prefix. Coroutines that die |
|
|
612 | kill the whole process, just as exceptions in the main "coroutine" |
|
|
613 | did already. |
|
|
614 | |
|
|
615 | 2.1 Wed Nov 1 23:01:13 CET 2006 |
|
|
616 | - fix a long-standing bug in Coro::Select where select with |
|
|
617 | zero timeout would instead change the current default filehandle. |
|
|
618 | - use a simpler and hopefully more robust way to clone padlists |
|
|
619 | (uses less memory and a perl function instead of our own). |
|
|
620 | - coro can now create a stack guard area on many architectures. |
|
|
621 | - Coro::AIO properly reexports additional functions from IO::AIO. |
|
|
622 | - updated libcoro with a workaround for OS X, |
|
|
623 | pach and testing by Michael Schwern. |
|
|
624 | |
|
|
625 | 2.0 Tue Oct 24 05:47:17 CEST 2006 |
|
|
626 | - support additional aio requests in Coro::AIO. |
|
|
627 | |
|
|
628 | 1.9 (never properly released due to a glitch) |
|
|
629 | |
|
|
630 | 1.8 Thu Feb 2 00:59:06 CET 2006 |
|
|
631 | - applied suggested patch by SAMV to avoid problems during stupid |
|
|
632 | mark & sweep gc run. |
|
|
633 | - applied patch by Scott Walters for 5.9.3 compatibility. |
|
|
634 | |
|
|
635 | 1.7 Tue Dec 27 01:41:58 CET 2005 |
|
|
636 | - added Coro::AIO, a thin wrapper around IO::AIO. |
|
|
637 | - improved Makefile.PL explanations. |
|
|
638 | |
|
|
639 | 1.6 Mon Dec 12 21:30:05 CET 2005 |
|
|
640 | - additionally save PM_curpm might fix as-of-yet |
|
|
641 | unseen problems with regex matches being attributed to the |
|
|
642 | wrong package. |
|
|
643 | - add t/10_bugs.t, which currently checks against imho broken |
|
|
644 | perls that use 0.26MB of stack space per Perl_magic_get |
|
|
645 | invocation (newer linuxes) as opposed to the 0.0002MB perl |
|
|
646 | normally uses. |
|
|
647 | - make stacksize configurable for the ultimate debian experience. |
|
|
648 | |
|
|
649 | 1.51 Mon Dec 12 18:48:36 CET 2005 |
|
|
650 | - remove debugging warn() accidentally left in Coro::Select. |
|
|
651 | |
|
|
652 | 1.5 Tue Nov 29 13:32:44 CET 2005 |
|
|
653 | - use Coro::Event inside Coro::Select to avoid spurious deadlocks. |
|
|
654 | - fix Coro::Select 'select'. |
|
|
655 | - strict'ify some modules. |
|
|
656 | - libcoro errornously restored the SIGUSR2 handler to SIGUSR1. |
|
|
657 | - use XSLoader in selected modules. |
|
|
658 | - remove some 5.6 compatibility cruft. |
|
|
659 | |
|
|
660 | 1.4 Tue Sep 6 00:11:05 CEST 2005 |
|
|
661 | - libcoro did not take into account the trampoline on amd64, |
|
|
662 | when 'l'inux method was used. |
|
|
663 | |
|
|
664 | 1.31 Tue Aug 30 23:31:33 CEST 2005 |
|
|
665 | - some portability fixes/workarounds. |
|
|
666 | |
|
|
667 | 1.3 Sat Aug 20 03:08:56 CEST 2005 |
|
|
668 | - no code changes. module seems to work fine. |
|
|
669 | - improve Coro::State docs, remove reference to nonexisting |
|
|
670 | Coro::State::flush method. |
|
|
671 | - no longer autodetect windows, present it as an option instead. |
|
|
672 | |
|
|
673 | 1.2 Mon May 16 02:00:55 CEST 2005 |
|
|
674 | - included libcoro.c earlier in State.xs, might improve portability. |
|
|
675 | - use a faster and possibly more stable Coro::Cont implementation. |
|
|
676 | - accept x86_64 in addition to amd64 for optimized linux-amd64 support. |
|
|
677 | - fix bugs Coro::SemaphoreSet that could cause locks never to be freed. |
|
|
678 | - fix bugs in CoroAPI.h and document it in Coro::MakeMaker. |
|
|
679 | |
|
|
680 | 1.11 Thu Mar 3 18:00:52 CET 2005 |
|
|
681 | - change of contact address. |
|
|
682 | |
|
|
683 | 1.1 Tue Feb 22 20:51:16 CET 2005 |
|
|
684 | - support [l]inux method on amd64. |
|
|
685 | - allow some context switches while compiling/eval'ing. |
|
|
686 | |
|
|
687 | 1.0 Tue Aug 10 03:47:27 CEST 2004 |
|
|
688 | - Event 0.89 fixes the bug again. |
|
|
689 | - fix the remaining(??) memleak. I didn't free the cache-AV for |
|
|
690 | padlists, so one AV per created anon-sub leaked. |
|
|
691 | |
|
|
692 | 0.97 Fri May 14 15:23:32 CEST 2004 |
|
|
693 | - remove stupid gcc extension that was an experiment only anyway. |
|
|
694 | |
|
|
695 | 0.96 Thu May 13 18:09:29 CEST 2004 |
|
|
696 | - tell people if they have yet another broken Event variant. |
|
|
697 | - made Coro to work _better_ with threads (it seems that, as long |
|
|
698 | as you use Coros in one thread only everything will work fine. |
|
|
699 | Looking at the perl source the problem might be missing locking |
|
|
700 | between Coro and some perl internal routines. That's not easily |
|
|
701 | fixable). |
|
|
702 | - (hopefully) got rid of the static xnext inside transfer. |
|
|
703 | |
|
|
704 | 0.95 Sun Feb 15 03:20:28 CET 2004 |
|
|
705 | - removed Coro::State::flush, implemented a new and much |
|
|
706 | faster caching mechanism by attaching magic to the CV. |
|
|
707 | - a memleak with (real) closures remains. |
|
|
708 | - dramatically reduced size of stacks to 65536 (linux/x86), after |
|
|
709 | observing that even myhttpd never had more than a kilobyte |
|
|
710 | of stack in use (stack is still only physically allocated in |
|
|
711 | pagesize increments for systems suporting mmap). |
|
|
712 | - fix for a "cygwin-64" architecture added, proposed by Stefan Traby. |
|
|
713 | - fix for threaded perl. |
|
|
714 | |
|
|
715 | 0.9 Sun Nov 23 04:32:39 CET 2003 |
|
|
716 | - fix a few very hard to track down but (of course) stupid |
|
|
717 | memory leaks. |
|
|
718 | - stringify version number to avoid locale problems :(. |
|
|
719 | - perl 5.9.0 does not have SvPADBUSY, reported by Scott Walters, |
|
|
720 | hopefully ignoring it "just works". |
|
|
721 | |
|
|
722 | 0.8 Wed Nov 5 19:38:40 CET 2003 |
|
|
723 | - port to perl5.005_03, but only 5.8.x+ is supported! |
|
|
724 | - honor LocalAddr even without LocalPort in Coro::Socket. |
|
|
725 | |
|
|
726 | 0.7 Tue May 27 03:12:38 CEST 2003 |
|
|
727 | - the version jump indicates some level of testing, not gobs |
|
|
728 | of new features. |
|
|
729 | - uh... I found the prompt function in ExtUtils::MakeMaker. |
|
|
730 | Highly correct stuff, that is... |
|
|
731 | - fixed(?) a bug with die's in coroutines causing "panic: top_env". |
|
|
732 | the fix is not well understood by the author, so beware :(. |
|
|
733 | |
|
|
734 | 0.652 Thu May 8 02:54:46 CEST 2003 |
|
|
735 | - Applied patch by Slaven Rezic to set default to "s" on FreeBSD, |
|
|
736 | cause version 4 doesn't have ucontext. |
|
|
737 | - Benjamin Reed reported that setjmp works fine on darwin, |
|
|
738 | so preselect it. |
|
|
739 | |
|
|
740 | 0.651 Sat Mar 29 15:00:23 CET 2003 |
|
|
741 | - fix a bug in Coro::Handle where some bytes could get lost |
|
|
742 | on reading, reported by jason@nichego.net. |
|
|
743 | |
|
|
744 | 0.65 Sun Mar 23 00:08:26 CET 2003 |
|
|
745 | - added a README.linux-glibc. |
|
|
746 | - new module Coro::Select. |
|
|
747 | - also save/restore PL_comppad, fixes segfaults with 5.8.1. |
|
|
748 | (I never claimed that I know what I am doing ;). |
|
|
749 | - set default to setjmp/longjmp on non-x86-linux. |
|
|
750 | |
|
|
751 | 0.6 Thu Nov 21 11:09:06 CET 2002 |
|
|
752 | - made lazy context switching the default. |
|
|
753 | - fixed the bug where SemaphoreSet::guard |
|
|
754 | was the same as timed_guard and timed_guard was missing. |
|
|
755 | - fix a memleak in Coro::Timer. |
|
|
756 | - reclassified context sharing as not experimental. |
|
|
757 | |
|
|
758 | 0.534 Sun Apr 14 03:05:12 CEST 2002 |
|
|
759 | - fixed backspace => tab in header parsing (myhttpd). |
|
|
760 | - added eg/readline, for elmex. |
|
|
761 | - Coro::Event now calls ->start on first call instead of |
|
|
762 | ->again, which created wrong timeouts for the first ->next. |
|
|
763 | - fixed a bug where Coro::Socket returned a closed socket instead |
|
|
764 | of nothing on ECONNREFUSED and similar error conditions. |
|
|
765 | |
|
|
766 | 0.533 Mon Feb 18 18:49:40 CET 2002 |
|
|
767 | - adapt to finally working Event-0.85. |
|
|
768 | - fixed buggy event initialization (trapped under windows, but how |
|
|
769 | could it possibly have worked anywhere?) |
|
|
770 | |
|
|
771 | 0.532 Wed Jan 16 02:45:32 CET 2002 |
|
|
772 | - removed the reference to pp_entersub, might work on |
|
|
773 | (some) win32 perls now (testsuite works under cygwin, |
|
|
774 | without Event, which freezes). |
|
|
775 | |
|
|
776 | 0.531 Mon Dec 10 22:18:44 CET 2001 |
|
|
777 | - Fixed a bug in SemaphoreSet::timed_down. |
|
|
778 | |
|
|
779 | 0.53 Tue Nov 27 21:11:13 CET 2001 |
|
|
780 | - some tests for Event. |
|
|
781 | - slightly different internal architecture to get refcnt into the object |
|
|
782 | and not the reference. might fix a few bugs, certainly did introduce |
|
|
783 | new ones. |
|
|
784 | - Coro::Timer (independent of Event). |
|
|
785 | - new timed_wait functions for Coro::Signal, Semaphore, SemaphoreSet. |
|
|
786 | |
|
|
787 | 0.52 Tue Nov 6 21:36:18 CET 2001 |
|
|
788 | - ported to cygwin (trivial). |
|
|
789 | patch by Gerrit P. Haase <gp@familiehaase.de>. |
|
|
790 | - small setjmp code fix by Sullivan.DanielJ@epamail.epa.gov. |
|
|
791 | |
|
|
792 | 0.51 Thu Nov 1 20:39:01 CET 2001 |
|
|
793 | - terminate/cancel now work properly (otherwise termination |
|
|
794 | could cause a "next coroutine is not and contains not..." |
|
|
795 | error. |
|
|
796 | - added Coro::Socket::shutdown. |
|
|
797 | - Coro::Event::loop no is the same as Event::loop. |
|
|
798 | - implemented terminate with args + join. |
|
|
799 | |
|
|
800 | 0.5 Fri Sep 28 16:15:35 CEST 2001 |
|
|
801 | - fixed "print" on a Coro::Handle. The print method worked. |
|
|
802 | - small tweaks (seem to reduce memory consumption a lot) |
|
|
803 | in various modules. |
|
|
804 | - splendid use of "no warnings" scattered throughout. |
|
|
805 | - added Coro::Handle::rbuf, fixed Coro::Handle::fh. |
|
|
806 | |
|
|
807 | 0.49 Sun Sep 16 02:42:45 CEST 2001 |
|
|
808 | - changed some method calls to function calls for speed |
|
|
809 | inside Coro::Handle. |
|
|
810 | - make Coro::Handle use an array instead of a hash for |
|
|
811 | speed reasons. |
|
|
812 | - IRIX mystery solved: it's SGI's NT, after all: "standard, huh?". |
|
|
813 | sjlj and ucontext should now work. |
|
|
814 | - IRIX-specific port for libcoro. |
|
|
815 | - swapped order of accept results to match IO::Socket. |
|
|
816 | - changed getsock/peername to sock/peername to match IO::Socket. |
|
|
817 | - fixed a bug that caused segfault when returning to main task |
|
|
818 | under some circumstances. |
|
|
819 | - other bugfixes. |
|
|
820 | |
|
|
821 | 0.45 Sun Sep 2 02:54:01 CEST 2001 |
| 4 | - new method Coro::Handle::timeout. |
822 | - new method Coro::Handle::timeout. |
| 5 | - corrected speling of set...name to get...name in Coro::Socket. |
823 | - corrected speling of set...name to get...name in Coro::Socket. |
| 6 | - Coro::Socket::accept now returns a Coro::Socket, not a Coro::Handle. |
824 | - Coro::Socket::accept now returns a Coro::Socket, not a Coro::Handle. |
| 7 | - Coro::Handle now supports fileno and FILENO. |
825 | - Coro::Handle now supports fileno and FILENO. |
| 8 | - added eg/myhttpd, a web server. |
826 | - added eg/myhttpd, a web server. |
| 9 | - Coro::Socket now accepts numeric ports as well as "port(number)" |
827 | - Coro::Socket now accepts numeric ports as well as "port(number)" |
| 10 | syntax. |
828 | syntax. |
| 11 | - moved some scheduling primitives into xs code. more to come. |
829 | - moved some scheduling primitives into xs code. more to come. |
| 12 | - new simple priority system. |
830 | - new simple priority system. |
|
|
831 | - implemented Coro::Event using XS, almost four times faster! |
|
|
832 | - small memory corruption problem fixed (boy that was difficult). |
| 13 | |
833 | |
| 14 | 0.13 Wed Aug 8 16:53:07 CEST 2001 |
834 | 0.13 Wed Aug 8 16:53:07 CEST 2001 |
| 15 | - new method Coro::Handle::readline. |
835 | - new method Coro::Handle::readline. |
| 16 | - added eg/lwp and Coro::Handle::autoflush, to make LWP work. |
836 | - added eg/lwp and Coro::Handle::autoflush, to make LWP work. |
| 17 | (see eg/lwp on how to make LWP non-blocking). |
837 | (see eg/lwp on how to make LWP non-blocking). |
