| 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's |
4 | TODO: maybe implement a default message channel, very much like Erlang's |
| 5 | actor model (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 | |
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8 | TODO: suspend/resume, unready_all etc. |
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9 | - implement and document Coro->suspend, Coro->resume. |
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10 | - fix Coro::Select implementation to not (often) close |
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11 | the passed file descriptors (testcase provided by pippijn). |
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12 | |
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13 | 5.13 Mon Dec 15 21:51:42 CET 2008 |
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14 | - EXPERIMENTAL: implement dynamic winds (on_enter/on_leave). |
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15 | - don't set diehook to C<undef> but instead to NULL, to avoid |
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16 | spurious warnings. |
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17 | - fix a lot of bugs in Coro::SemaphoreSet. |
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18 | - Coro::SemaphoreSet will less often create a semaphore needlessly. |
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19 | - add Coro::SemaphoreSet::count and wait methods. |
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20 | - take advantage of the new Guard module. |
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21 | - deprecate Coro::guard. |
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22 | - try to fix the dreaded 01_unblock tests once more. I hate it when |
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23 | testsuites need more fixing than the code they are supposed to test. |
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24 | - croak in more cases when a required callback isn't resolvable. |
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25 | - fix some minor issues in Coro::State->call/eval. |
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26 | - use current coroutine context instead of a temporary one |
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27 | when temporarily switching to another coroutine. |
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28 | - do not call C-level on_destroy handlers during global destruction, |
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29 | to avoid needless segfaults. |
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30 | |
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31 | 5.12 Sun Dec 7 13:30:38 CET 2008 |
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32 | - add default config for MirOS, which seems to be a bug-to-bug |
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33 | compatible fork of openbsd ("world domination by releasing |
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34 | openbsd cvs before the openbsd folks do it" or so :). |
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35 | - free_padlist did destroy the names pad, not good, but didn't |
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36 | seem to bother perl - this could fix issues such as eval "" |
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37 | inside a function called from multiple coroutines. |
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38 | - use a different method to detect destruction time. |
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39 | - be more careful when freeing padlists just before global |
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40 | destruction. |
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41 | - fixed and expanded the call/cc example. |
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42 | - renamed _terminate to _coro_run. |
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43 | - new method Coro::Channel->shutdown. |
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44 | - try pthreads on openbsd <4.4 (broken sigaltstack, will |
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45 | pthreads fare better?). |
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46 | - be less picky about destroying "a" running coroutine. |
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47 | |
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48 | 5.11 Tue Nov 25 21:49:05 CET 2008 |
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49 | - DEBUGGING in 5.10.0 is a mess: it constantly flags perfectly |
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50 | working code with failed assertions, introducing more bugs than |
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51 | it fixes, requiring elaborate workarounds :( |
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52 | |
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53 | 5.1 Mon Nov 24 08:54:59 CET 2008 |
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54 | - wrote a small introductory tutorial - Coro::Intro. |
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55 | - convert Coro::Timer, Coro::Select and Coro::Util to rouse API. |
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56 | - Coro::Select did errornously dup the file descriptors |
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57 | and didn't work with all AnyEvent backends. |
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58 | - Coro::Select wasn't imported correctly form Coro::LWP, causing blocking |
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59 | LWP data transfers. |
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60 | - disassociate c contexts from coro objects - this is agruably more |
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61 | correct, but mostly allows sharing of cctxs between coro and state |
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62 | objects, for added memory savings and speed increases. |
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63 | - bumped $Coro::POOL_RSS up to 32kb by default. |
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64 | - no longer set the optype to OP_CUSTOM, as B::* understandably |
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65 | doesn't like this very much (and we *are* a type of entersub). |
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66 | - implement state cloning, just to prove that call/cc can be done. |
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67 | - automatically load Coro::AnyEvent in Coro::Handle. |
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68 | - wrap ->cancel calls in eval inside Coro::Handle as EV watchers |
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69 | do not have this method (and don't need it either). |
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70 | - speed up generic anyevent methods in Coro::Handle by using rouse |
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71 | callbacks. |
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72 | - allow coroutines in $Coro::IDLE, speeding up Coro::AnyEvent and |
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73 | others. It also makes the debugger happier, as you can trace |
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74 | through the idle threads now. |
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75 | - add comppad_name* and hints ($^H, %^H) to per-thread variables. |
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76 | - eg/event was pretty broken. |
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77 | - better 5.8.6 compatibility. |
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78 | |
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79 | 5.0 Thu Nov 20 10:35:05 CET 2008 |
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80 | - NEW ARCHITECTURE: use the latest 4.x version if you experience |
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81 | stability issues. |
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82 | - bump API version to 7 - all dependents must be recompiled. |
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83 | - removed timed_* functions - they were not being used anyways |
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84 | and should be replaced by a more generic mechanism - |
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85 | and were annoying to support anyways :) |
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86 | - removed SemaphoreSet's waiter method - use sem method instead. |
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87 | - Coro::Semaphore->adjust didn't correctly wake up enough waiters. |
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88 | - async_pool did free a scalar value twice |
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89 | ("Attempt to unreference..."). |
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90 | - fix a longstanding bug where calling terminate on a coro that |
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91 | was waiting for a semaphore that was just becoming available |
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92 | would cause a deadlock (semaphore would get into a state where |
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93 | it was available but waiters were still blocked). |
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94 | - calling throw on a coroutine that is waiting for a semaphore will |
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95 | no longer make it acquire the semaphore (and thus leak a count). |
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96 | - perl's process emulation is now not even theoretically supported |
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97 | anymore. |
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98 | - new functions Coro::rouse_cb and Coro::rouse_wait for easier |
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99 | conversion of callback-style to blocking-style. |
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100 | - new methods $coro->schedule_to and ->cede_to, to specifically |
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101 | schedule or cede to a specific coroutine. |
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102 | - new function Coro::Semaphore::wait. |
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103 | - use named constants in Coro::Channel (Richard Hundt). |
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104 | - directly patch the entersub opcode calling SLF functions (cede, |
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105 | transfer and so on). this does speed up context switching, but |
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106 | more importanly, it frees us from the hardcoded behaviour of |
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107 | entersub, so we might actually be able to return something from |
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108 | those functions and atcually create new ones. |
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109 | - take advantage of __builtin_frame_address on gcc. |
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110 | - expose THX in coroapi (not sure whether this was a wise decision, |
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111 | as "threaded" perls are running at half speed anyways). |
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112 | - implement execute_slf (schedule-like-function) interface that makes |
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113 | it possible to implement schedule-like-functions in XS. |
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114 | - use new SLF interface to massively speed up Coro::EV by roughly a |
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115 | factor of two. |
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116 | - used new SLF interface to massively speed up Coro::Semaphore by a |
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117 | factor of three. |
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118 | - used new SLF interface to speed up Coro::AIO by roughly a factor of |
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119 | four and reduce its memory usage considerably. |
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120 | - implement Coro::SemaphoreSet purely in terms of Coro::Semaphore, |
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121 | for a nice speedup and vastly more correct behaviour. Also implement |
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122 | a new method "sem" to get at the underlying semaphore object. |
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123 | - implement Coro::Channel in terms of Coro::Semaphore, for a moderate |
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124 | (in comparison) 20-40% speedup. |
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125 | - used new SLF interface to reimplement Coro::Signal gaining |
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126 | some unknown (because I was too lazy), but certain, speedup, and also |
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127 | making signals reliable for the first time. |
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128 | - used new SLF interface and other optimisations to speed up async_pool |
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129 | by a factor of two. It also doesn't rely on perl's exception mechanism |
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130 | to exit anymore. The overhead for terminating an async_pool, coro over |
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131 | a normal async is now very small. |
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132 | - sped up coroutine creation/destruction by 40%. |
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133 | - forgot to include Coro/libcoro/README in the dist for all these years. |
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134 | - work around a freebsd pthreads bug (manual testcancel is required as |
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135 | pthread_cond_wait isn't a cancellation point on freebsd). |
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136 | - use new rouse functions to speed up and simplify Coro::BDB. |
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137 | - make "prefer perl native functions" work with threaded perls. |
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138 | - condense Coro::Debug ps output, hint at v and w flags. |
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139 | - (libcoro) lots of minor cleanups and portability improvements. |
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140 | |
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141 | 4.914 Wed Nov 19 12:54:18 CET 2008 |
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142 | - fix a disastrous bug in the readline optimisation |
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143 | introduced in 4.801. |
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144 | |
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145 | 4.913 Sat Nov 15 07:58:28 CET 2008 |
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146 | - async_pool did free a scalar value twice |
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147 | ("Attempt to unreference..."). |
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148 | |
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149 | 4.912 Thu Nov 13 18:31:23 CET 2008 |
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150 | - minor cleanups. |
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151 | - use much larger stacks on linux and perl < 5.8.8. |
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152 | - Coro::Debug::new_unix_server did not unlink the socket |
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153 | when destroyed. |
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154 | |
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155 | 4.911 Tue Nov 11 04:26:17 CET 2008 |
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156 | - "port" to threaded perls. |
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157 | |
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158 | 4.91 Mon Nov 10 05:36:38 CET 2008 |
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159 | - the ->throw exception object no longer leaks. |
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160 | - creating a new cctx leaked a scopestack entry (memleak). |
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161 | - new coroutines didn't get created with a zero flags field |
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162 | (unknown impact). |
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163 | - calling ->throw on a not-yet-started coroutine should now work |
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164 | instead of being ignored. |
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165 | - ->throw is now supported on Coro::State objects. |
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166 | - clean up cctx creation code a bit. |
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167 | - entersub is actually a UNOP, not a LOGOP (not a bugfix). |
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168 | |
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169 | 4.9 Sat Nov 8 17:45:27 CET 2008 |
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170 | - (libcoro) did not preserve rbp with CORO_ASM (we are getting there). |
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171 | - (libcoro) no longer leak threads in the experimental pthread backend, |
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172 | also speed it up considerably. |
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173 | - (libcoro) do not rely on makecontext passing void *'s unscathed. |
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174 | - fix compiletime dependencies on libcoro in the Makefile. |
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175 | - cctx_count wasn't always updated properly. |
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176 | - Coro::State::cctx_stacksize wasn't applied correctly. |
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177 | - new function Coro::State::cctx_max_idle. |
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178 | - the default max number of idle C contexts is now 4. |
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179 | - (libcoro) try harder to get _setjmp/_longjmp. |
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180 | - (libcoro) cleanup and extend the libcoro API to officially |
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181 | allow the creation of empty source contexts. |
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182 | - very experimental workaround for the totally broken netbsd platform. |
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183 | - tried to hack around openbsd bugs. |
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184 | |
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185 | 4.804 Wed Nov 5 16:36:00 CET 2008 |
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186 | - Coro::Debug::new_unix_server would not create a non-blocking listening |
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187 | socket, sometimes causing freezes. |
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188 | - (libcoro) fix misaligned stack points for setjmp and assembly |
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189 | methods, which can cause crashes on x86/x86_64 with a sufficiently |
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190 | aggressive compiler. |
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191 | - new function: Coro::Debug::new_tcp_server. |
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192 | - move ->throw into the Coro class because it only works on coro objects. |
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193 | |
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194 | 4.803 Mon Nov 3 17:16:12 CET 2008 |
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195 | - (libcoro) use a global asm statement to become independent of gcc |
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196 | otpimisations for CORO_ASM (thanks to pippijn for the idea). |
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197 | - try to workaround yet another broken bsd, this time dragonfly. |
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198 | |
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199 | 4.802 Thu Oct 30 10:56:12 CET 2008 |
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200 | - support -fno-omit-frame-pointer on x86 with the assembly method. |
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201 | - tune 01_unblock.t tests a bit. |
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202 | |
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203 | 4.801 Wed Oct 22 18:33:37 CEST 2008 |
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204 | - improve readline speed for very long "lines". |
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205 | - backport to 5.8.8. |
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206 | |
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207 | 4.8 Thu Oct 2 13:34:40 CEST 2008 |
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208 | - new function Coro::AIO::aio_wait. |
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209 | - Coro.:AIO and Coro::BDB now "use Coro::AnyEvent". |
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210 | - greatly speed up and reduce memory usage of Coro::AIO requests. |
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211 | - implement some other ยต-optimisations. |
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212 | |
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213 | 4.749 Mon Sep 29 14:40:12 CEST 2008 |
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214 | - port to slow and broken pseudo-threaded perls. (courtesy pippijn). |
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215 | |
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216 | 4.748 Sat Sep 27 14:03:19 CEST 2008 |
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217 | - implement, but do not document, PerlIO::cede(granularity). |
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218 | - Coro::Storable forgot to wrap Storable::pstore. |
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219 | - work around the multitude of leaks and memory corruption |
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220 | bugs in PerlIO::via by using our own C-level perliol. As a side |
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221 | effect, Coro::Storable is now much, much, much faster. |
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222 | |
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223 | 4.747 Tue Sep 23 01:59:41 CEST 2008 |
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224 | - fix a per-cv memleak (one empty array was leaked per |
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225 | code reference). |
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226 | - avoid a crash in coro->call|rss when the coroutine was already |
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227 | destroyed (most noticably when using Coro::Debug::ps :) |
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228 | - also protect *Storable::FILE. |
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229 | - push up default storable granularity to 20ms. |
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230 | |
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231 | 4.746 Sun Sep 21 03:22:20 CEST 2008 |
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232 | - be more insistent on locking Storable against reentrancy |
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233 | in Coro::Storable. |
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234 | - move swap_def?v and throw to Coro::State, as documented. |
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235 | |
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236 | 4.745 Thu Jul 24 00:14:38 CEST 2008 |
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237 | - remove debugging code related to MgPV_nolen_const, also try to |
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238 | make it compile with perl 5.8.6 (yes, apple apparently loves |
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239 | outdated software). Reported by John S. |
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240 | |
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241 | 4.744 Tue Jul 8 22:06:35 CEST 2008 |
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242 | - correctly provide default DIE/WARN handlers as documented. |
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243 | - also overwrite PL_vtbl_sigelem.svt_clear, even though current |
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244 | implementations inside perl work fine for us. |
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245 | |
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246 | 4.743 Mon Jun 16 00:21:57 CEST 2008 |
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247 | - when using Coro::EV without running EV::loop it could |
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248 | result in busy-waiting for events, this has been fixed. |
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249 | - reduce codesize and improve performance by using EV_DEFAULT_UC. |
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250 | |
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251 | 4.742 Sat May 31 14:10:21 CEST 2008 |
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252 | - implement a workaround for (some) perl <5.8.8 versions. |
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253 | - require EV 3.3+. |
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254 | |
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255 | 4.741 Fri May 30 23:33:09 CEST 2008 |
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256 | - tell netbsd how utterly broken their imitation of an OS is |
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257 | and refuse to build by default if pthreads are in use. |
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258 | - switch to "s" method on all bsd's by default, as their ucontext |
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259 | stuff seems just too broken. |
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260 | - fix a bug in Coro::Select. |
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261 | |
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262 | 4.74 Thu May 29 20:05:31 CEST 2008 |
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263 | - do not test Coro::LWP for lack of dependencies. |
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264 | - do not test Coro::Select for lack of working perls. |
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265 | |
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266 | 4.73 Thu May 29 2008 |
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267 | - fix a bug in Coro::EV which would cause it to block despite |
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268 | there being runnable coroutines. |
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269 | - sprinkle "no warnings" freely over everything, also suppress |
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270 | warnings for some other modules. |
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271 | - fix typo in WSAEWOULDBLOCK. |
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272 | |
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273 | 4.72 Sun May 25 05:14:36 CEST 2008 |
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274 | - tweak META.yaml a bit, unfortunately, there is no documented way |
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275 | to have optional dependencies with CPAN. doh :( |
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276 | - avoid running some tests on windows because they would fail due to |
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277 | perl bug (broken fork, broken pipes...). |
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278 | - work around perl on windows bugs where perl returns undocumented |
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279 | error codes for sysread, syswrite etc. by taking advantage |
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280 | of AnyEvent's workaround for that problem. |
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281 | - use AnyEvent::Util::fh_nonblocking in Coro::Handle to work around |
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282 | a common perl implementation bug on windows. |
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283 | - use unix domain sockets in testsuite to work around |
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284 | common perl implementation bugs on widows (they are emulated by |
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285 | tcp sockets on windows. ugh.) |
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286 | |
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287 | 4.71 Sat May 24 20:01:27 CEST 2008 |
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288 | - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()"). |
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289 | - take advantage of async name resolution of AnyEvent::Util. |
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290 | - work around brutal inet_aton override in Coro::LWP. |
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291 | - take advantage of the readyhook in Coro::EV, for smoother |
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292 | scheduling. |
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293 | |
| 8 | 4.7 Sun May 11 00:32:19 CEST 2008 |
294 | 4.7 Sun May 11 00:32:19 CEST 2008 |
| 9 | - completely reworked the Coro manpage. |
295 | - completely reworked the Coro manpage. |
| 10 | - added Coro::AnyEvent, generic event loop integration. |
296 | - added Coro::AnyEvent, generic event loop integration. |
| 11 | - implement cancel, ready and kill commands in Coro::Debug. |
297 | - implement cancel, ready and kill commands in Coro::Debug. |
