| 1 | Revision history for Perl extension Coro. |
1 | Revision history for Perl extension Coro. |
| 2 | |
2 | |
| 3 | TODO: should explore PerlIO::via::CoroCede and PerlIO::via::CoroAIO. |
3 | TODO: should explore PerlIO::coroaio (perl leaks like hell). |
| 4 | TODO: maybe implement a default message channel, very much like Erlang |
4 | TODO: maybe implement a default message channel, very much like Erlang's |
| 5 | (which is cool in a lot of important aspects (failures!), |
5 | actor model (which is cool in a lot of important aspects (failures!), |
| 6 | but very lacking in others (higher level ipc)). |
6 | but very lacking in others (higher level ipc)). |
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7 | |
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8 | - minor tuning. |
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9 | |
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10 | 5.11 Tue Nov 25 21:49:05 CET 2008 |
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11 | - DEBUGGING in 5.10.0 is a mess: it constantly flags perfectly |
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12 | working code with failed assertions, introducing more bugs than |
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13 | it fixes, requiring elaborate workarounds :( |
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14 | |
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15 | 5.1 Mon Nov 24 08:54:59 CET 2008 |
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16 | - wrote a small introductory tutorial - Coro::Intro. |
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17 | - convert Coro::Timer, Coro::Select and Coro::Util to rouse API. |
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18 | - Coro::Select did errornously dup the file descriptors |
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19 | and didn't work with all AnyEvent backends. |
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20 | - Coro::Select wasn't imported correctly form Coro::LWP, causing blocking |
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21 | LWP data transfers. |
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22 | - disassociate c contexts from coro objects - this is agruably more |
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23 | correct, but mostly allows sharing of cctxs between coro and state |
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24 | objects, for added memory savings and speed increases. |
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25 | - bumped $Coro::POOL_RSS up to 32kb by default. |
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26 | - no longer set the optype to OP_CUSTOM, as B::* understandably |
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27 | doesn't like this very much (and we *are* a type of entersub). |
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28 | - implement state cloning, just to prove that call/cc can be done. |
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29 | - automatically load Coro::AnyEvent in Coro::Handle. |
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30 | - wrap ->cancel calls in eval inside Coro::Handle as EV watchers |
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31 | do not have this method (and don't need it either). |
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32 | - speed up generic anyevent methods in Coro::Handle by using rouse |
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33 | callbacks. |
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34 | - allow coroutines in $Coro::IDLE, speeding up Coro::AnyEvent and |
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35 | others. It also makes the debugger happier, as you can trace |
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36 | through the idle threads now. |
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37 | - add comppad_name* and hints ($^H, %^H) to per-thread variables. |
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38 | - eg/event was pretty broken. |
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39 | - better 5.8.6 compatibility. |
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40 | |
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41 | 5.0 Thu Nov 20 10:35:05 CET 2008 |
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42 | - NEW ARCHITECTURE: use the latest 4.x version if you experience |
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43 | stability issues. |
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44 | - bump API version to 7 - all dependents must be recompiled. |
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45 | - removed timed_* functions - they were not being used anyways |
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46 | and should be replaced by a more generic mechanism - |
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47 | and were annoying to support anyways :) |
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48 | - removed SemaphoreSet's waiter method - use sem method instead. |
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49 | - Coro::Semaphore->adjust didn't correctly wake up enough waiters. |
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50 | - async_pool did free a scalar value twice |
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51 | ("Attempt to unreference..."). |
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52 | - fix a longstanding bug where calling terminate on a coro that |
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53 | was waiting for a semaphore that was just becoming available |
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54 | would cause a deadlock (semaphore would get into a state where |
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55 | it was available but waiters were still blocked). |
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56 | - calling throw on a coroutine that is waiting for a semaphore will |
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57 | no longer make it acquire the semaphore (and thus leak a count). |
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58 | - perl's process emulation is now not even theoretically supported |
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59 | anymore. |
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60 | - new functions Coro::rouse_cb and Coro::rouse_wait for easier |
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61 | conversion of callback-style to blocking-style. |
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62 | - new methods $coro->schedule_to and ->cede_to, to specifically |
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63 | schedule or cede to a specific coroutine. |
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64 | - new function Coro::Semaphore::wait. |
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65 | - use named constants in Coro::Channel (Richard Hundt). |
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66 | - directly patch the entersub opcode calling SLF functions (cede, |
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67 | transfer and so on). this does speed up context switching, but |
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68 | more importanly, it frees us from the hardcoded behaviour of |
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69 | entersub, so we might actually be able to return something from |
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70 | those functions and atcually create new ones. |
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71 | - take advantage of __builtin_frame_address on gcc. |
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72 | - expose THX in coroapi (not sure whether this was a wise decision, |
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73 | as "threaded" perls are running at half speed anyways). |
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74 | - implement execute_slf (schedule-like-function) interface that makes |
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75 | it possible to implement schedule-like-functions in XS. |
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76 | - use new SLF interface to massively speed up Coro::EV by roughly a |
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77 | factor of two. |
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78 | - used new SLF interface to massively speed up Coro::Semaphore by a |
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79 | factor of three. |
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80 | - used new SLF interface to speed up Coro::AIO by roughly a factor of |
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81 | four and reduce its memory usage considerably. |
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82 | - implement Coro::SemaphoreSet purely in terms of Coro::Semaphore, |
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83 | for a nice speedup and vastly more correct behaviour. Also implement |
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84 | a new method "sem" to get at the underlying semaphore object. |
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85 | - implement Coro::Channel in terms of Coro::Semaphore, for a moderate |
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86 | (in comparison) 20-40% speedup. |
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87 | - used new SLF interface to reimplement Coro::Signal gaining |
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88 | some unknown (because I was too lazy), but certain, speedup, and also |
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89 | making signals reliable for the first time. |
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90 | - used new SLF interface and other optimisations to speed up async_pool |
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91 | by a factor of two. It also doesn't rely on perl's exception mechanism |
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92 | to exit anymore. The overhead for terminating an async_pool, coro over |
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93 | a normal async is now very small. |
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94 | - sped up coroutine creation/destruction by 40%. |
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95 | - forgot to include Coro/libcoro/README in the dist for all these years. |
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96 | - work around a freebsd pthreads bug (manual testcancel is required as |
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97 | pthread_cond_wait isn't a cancellation point on freebsd). |
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98 | - use new rouse functions to speed up and simplify Coro::BDB. |
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99 | - make "prefer perl native functions" work with threaded perls. |
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100 | - condense Coro::Debug ps output, hint at v and w flags. |
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101 | - (libcoro) lots of minor cleanups and portability improvements. |
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102 | |
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103 | 4.914 Wed Nov 19 12:54:18 CET 2008 |
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104 | - fix a disastrous bug in the readline optimisation |
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105 | introduced in 4.801. |
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106 | |
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107 | 4.913 Sat Nov 15 07:58:28 CET 2008 |
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108 | - async_pool did free a scalar value twice |
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109 | ("Attempt to unreference..."). |
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110 | |
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111 | 4.912 Thu Nov 13 18:31:23 CET 2008 |
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112 | - minor cleanups. |
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113 | - use much larger stacks on linux and perl < 5.8.8. |
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114 | - Coro::Debug::new_unix_server did not unlink the socket |
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115 | when destroyed. |
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116 | |
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117 | 4.911 Tue Nov 11 04:26:17 CET 2008 |
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118 | - "port" to threaded perls. |
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119 | |
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120 | 4.91 Mon Nov 10 05:36:38 CET 2008 |
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121 | - the ->throw exception object no longer leaks. |
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122 | - creating a new cctx leaked a scopestack entry (memleak). |
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123 | - new coroutines didn't get created with a zero flags field |
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124 | (unknown impact). |
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125 | - calling ->throw on a not-yet-started coroutine should now work |
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126 | instead of being ignored. |
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127 | - ->throw is now supported on Coro::State objects. |
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128 | - clean up cctx creation code a bit. |
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129 | - entersub is actually a UNOP, not a LOGOP (not a bugfix). |
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130 | |
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131 | 4.9 Sat Nov 8 17:45:27 CET 2008 |
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132 | - (libcoro) did not preserve rbp with CORO_ASM (we are getting there). |
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133 | - (libcoro) no longer leak threads in the experimental pthread backend, |
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134 | also speed it up considerably. |
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135 | - (libcoro) do not rely on makecontext passing void *'s unscathed. |
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136 | - fix compiletime dependencies on libcoro in the Makefile. |
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137 | - cctx_count wasn't always updated properly. |
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138 | - Coro::State::cctx_stacksize wasn't applied correctly. |
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139 | - new function Coro::State::cctx_max_idle. |
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140 | - the default max number of idle C contexts is now 4. |
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141 | - (libcoro) try harder to get _setjmp/_longjmp. |
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142 | - (libcoro) cleanup and extend the libcoro API to officially |
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143 | allow the creation of empty source contexts. |
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144 | - very experimental workaround for the totally broken netbsd platform. |
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145 | - tried to hack around openbsd bugs. |
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146 | |
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147 | 4.804 Wed Nov 5 16:36:00 CET 2008 |
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148 | - Coro::Debug::new_unix_server would not create a non-blocking listening |
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149 | socket, sometimes causing freezes. |
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150 | - (libcoro) fix misaligned stack points for setjmp and assembly |
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151 | methods, which can cause crashes on x86/x86_64 with a sufficiently |
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152 | aggressive compiler. |
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153 | - new function: Coro::Debug::new_tcp_server. |
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154 | - move ->throw into the Coro class because it only works on coro objects. |
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155 | |
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156 | 4.803 Mon Nov 3 17:16:12 CET 2008 |
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157 | - (libcoro) use a global asm statement to become independent of gcc |
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158 | otpimisations for CORO_ASM (thanks to pippijn for the idea). |
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159 | - try to workaround yet another broken bsd, this time dragonfly. |
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160 | |
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161 | 4.802 Thu Oct 30 10:56:12 CET 2008 |
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162 | - support -fno-omit-frame-pointer on x86 with the assembly method. |
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163 | - tune 01_unblock.t tests a bit. |
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164 | |
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165 | 4.801 Wed Oct 22 18:33:37 CEST 2008 |
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166 | - improve readline speed for very long "lines". |
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167 | - backport to 5.8.8. |
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168 | |
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169 | 4.8 Thu Oct 2 13:34:40 CEST 2008 |
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170 | - new function Coro::AIO::aio_wait. |
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171 | - Coro.:AIO and Coro::BDB now "use Coro::AnyEvent". |
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172 | - greatly speed up and reduce memory usage of Coro::AIO requests. |
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173 | - implement some other µ-optimisations. |
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174 | |
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175 | 4.749 Mon Sep 29 14:40:12 CEST 2008 |
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176 | - port to slow and broken pseudo-threaded perls. (courtesy pippijn). |
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177 | |
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178 | 4.748 Sat Sep 27 14:03:19 CEST 2008 |
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179 | - implement, but do not document, PerlIO::cede(granularity). |
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180 | - Coro::Storable forgot to wrap Storable::pstore. |
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181 | - work around the multitude of leaks and memory corruption |
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182 | bugs in PerlIO::via by using our own C-level perliol. As a side |
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183 | effect, Coro::Storable is now much, much, much faster. |
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184 | |
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185 | 4.747 Tue Sep 23 01:59:41 CEST 2008 |
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186 | - fix a per-cv memleak (one empty array was leaked per |
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187 | code reference). |
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188 | - avoid a crash in coro->call|rss when the coroutine was already |
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189 | destroyed (most noticably when using Coro::Debug::ps :) |
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190 | - also protect *Storable::FILE. |
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191 | - push up default storable granularity to 20ms. |
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192 | |
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193 | 4.746 Sun Sep 21 03:22:20 CEST 2008 |
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194 | - be more insistent on locking Storable against reentrancy |
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195 | in Coro::Storable. |
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196 | - move swap_def?v and throw to Coro::State, as documented. |
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197 | |
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198 | 4.745 Thu Jul 24 00:14:38 CEST 2008 |
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199 | - remove debugging code related to MgPV_nolen_const, also try to |
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200 | make it compile with perl 5.8.6 (yes, apple apparently loves |
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201 | outdated software). Reported by John S. |
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202 | |
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203 | 4.744 Tue Jul 8 22:06:35 CEST 2008 |
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204 | - correctly provide default DIE/WARN handlers as documented. |
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205 | - also overwrite PL_vtbl_sigelem.svt_clear, even though current |
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206 | implementations inside perl work fine for us. |
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207 | |
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208 | 4.743 Mon Jun 16 00:21:57 CEST 2008 |
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209 | - when using Coro::EV without running EV::loop it could |
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210 | result in busy-waiting for events, this has been fixed. |
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211 | - reduce codesize and improve performance by using EV_DEFAULT_UC. |
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212 | |
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213 | 4.742 Sat May 31 14:10:21 CEST 2008 |
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214 | - implement a workaround for (some) perl <5.8.8 versions. |
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215 | - require EV 3.3+. |
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216 | |
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217 | 4.741 Fri May 30 23:33:09 CEST 2008 |
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218 | - tell netbsd how utterly broken their imitation of an OS is |
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219 | and refuse to build by default if pthreads are in use. |
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220 | - switch to "s" method on all bsd's by default, as their ucontext |
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221 | stuff seems just too broken. |
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222 | - fix a bug in Coro::Select. |
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223 | |
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224 | 4.74 Thu May 29 20:05:31 CEST 2008 |
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225 | - do not test Coro::LWP for lack of dependencies. |
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226 | - do not test Coro::Select for lack of working perls. |
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227 | |
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228 | 4.73 Thu May 29 2008 |
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229 | - fix a bug in Coro::EV which would cause it to block despite |
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230 | there being runnable coroutines. |
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231 | - sprinkle "no warnings" freely over everything, also suppress |
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232 | warnings for some other modules. |
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233 | - fix typo in WSAEWOULDBLOCK. |
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234 | |
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235 | 4.72 Sun May 25 05:14:36 CEST 2008 |
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236 | - tweak META.yaml a bit, unfortunately, there is no documented way |
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237 | to have optional dependencies with CPAN. doh :( |
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238 | - avoid running some tests on windows because they would fail due to |
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239 | perl bug (broken fork, broken pipes...). |
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240 | - work around perl on windows bugs where perl returns undocumented |
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241 | error codes for sysread, syswrite etc. by taking advantage |
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242 | of AnyEvent's workaround for that problem. |
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243 | - use AnyEvent::Util::fh_nonblocking in Coro::Handle to work around |
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244 | a common perl implementation bug on windows. |
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245 | - use unix domain sockets in testsuite to work around |
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246 | common perl implementation bugs on widows (they are emulated by |
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247 | tcp sockets on windows. ugh.) |
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248 | |
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249 | 4.71 Sat May 24 20:01:27 CEST 2008 |
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250 | - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()"). |
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251 | - take advantage of async name resolution of AnyEvent::Util. |
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252 | - work around brutal inet_aton override in Coro::LWP. |
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253 | - take advantage of the readyhook in Coro::EV, for smoother |
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254 | scheduling. |
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255 | |
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256 | 4.7 Sun May 11 00:32:19 CEST 2008 |
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257 | - completely reworked the Coro manpage. |
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258 | - added Coro::AnyEvent, generic event loop integration. |
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259 | - implement cancel, ready and kill commands in Coro::Debug. |
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260 | - document find_coro in Coro::Debug. |
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261 | - incompatible change: rename has_stack to has_cctx. |
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262 | - Coro::AIO and Coro::BDB no longer force event model detection, |
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263 | use AnyEvent::AIO and AnyEvent::BDB. |
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264 | |
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265 | 4.6 Sat Apr 26 10:05:14 CEST 2008 |
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266 | - INCOMPATIBLE CHANGE: sub/code attributes are no longer supported |
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267 | by the Coro module. It was a mistake to have it in the first place. |
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268 | - (experimental) support for activestate perl 5.10 (method "w"). |
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269 | - (experimental) support for strawberry perl (method "a"). |
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270 | - coro_sigelem_set did not return a value although it had to, |
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271 | actual impact unknown. |
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272 | |
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273 | 4.51 Mon Apr 14 13:28:27 CEST 2008 |
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274 | - make it compile again on 5.8. |
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275 | |
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276 | 4.50 Thu Apr 10 09:43:17 CEST 2008 |
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277 | - I did it twice! (see 4.49). |
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278 | |
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279 | 4.49 Sun Apr 6 21:23:31 CEST 2008 |
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280 | - grr, instead of compiling the recent changes on 5.10 only they |
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281 | were compiled on 5.8 only. |
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282 | |
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283 | 4.48 Sun Apr 6 20:36:46 CEST 2008 |
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284 | - allow coroutine switches during eval's under 5.10.x, as it seems |
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285 | the parser is a per-interpreter option now, so this is safe |
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286 | (this might fix the odd crashing bug). |
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287 | - drop support for 5.9.x versions: they are dead, jim. |
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288 | |
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289 | 4.47 Sun Apr 6 00:37:52 CEST 2008 |
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290 | - force cctx allocation on API calls: we know we need to force one |
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291 | and gcc actually manages to confuse our heuristic nowadays, |
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292 | leading to crashes and worse. |
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293 | - document force_cctx. |
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294 | |
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295 | 4.46 Fri Apr 4 22:05:43 CEST 2008 |
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296 | - upgrade libcoro, resulting in pthread-backend (which was only created |
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297 | to fulfill the rules of the programming languages shootout). |
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298 | |
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299 | 4.45 Thu Mar 13 11:55:36 CET 2008 |
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300 | - fix a file leaking bug in eg/mhyttpd that would allow |
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301 | downloading of any file (reported by oesi). |
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302 | - fix deadlock bug in Coro::Channel (reported by Richard Hundt) |
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303 | (also add testcase). |
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304 | - support Broadcast option in Coro::Socket (patch by Richard Hundt, |
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305 | apparently having loads of fun with that). |
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306 | - implement $state->swap_defsv, ->swap_defav and document ->throw. |
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307 | |
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308 | 4.4 Wed Feb 13 16:44:29 CET 2008 |
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309 | - only assume .cfi pseudo isns exist on GNU/Linux. |
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310 | - add get_timed method to Coro::Channels. |
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311 | - fixed Coro::Debug manpage. |
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312 | - perl 5.11 compatbility improvement based on patch by |
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313 | Andreas König. |
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314 | |
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315 | 4.37 Sun Jan 20 11:25:23 CET 2008 |
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316 | - soften the check for an active parser for perl 5.10 (avoiding |
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317 | "Coro::State::transfer called while parsing" in many cases). |
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318 | |
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319 | 4.36 Sun Jan 13 10:53:56 CET 2008 |
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320 | - reset diehook when terminating from an async_pool as to not |
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321 | trigger any __DIE__ handlers. |
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322 | |
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323 | 4.35 Sun Jan 13 04:14:13 CET 2008 |
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324 | - "bt" debug command now displays any exceptions |
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325 | from longmess and also skips the innermost |
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326 | stackframes, giving more useufl output. |
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327 | - allow backtraces in coroutines blocked in Coro::EV, |
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328 | at a <1% speed hit. |
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329 | - handle localising of $SIG{__WARN__} and __DIE__ |
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330 | properly (with a proper amount of dirty hacking). |
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331 | |
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332 | 4.34 Sat Dec 22 17:49:53 CET 2007 |
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333 | - upgrade to EV version 2.0 API. |
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334 | |
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335 | 4.33 Mon Dec 17 08:36:12 CET 2007 |
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336 | - make Coro::AIO etc. loadable in the absence of EV. |
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337 | |
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338 | 4.32 Mon Dec 17 07:46:02 CET 2007 |
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339 | - majorly improved Coro::Handle's performance with Coro::EV. |
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340 | - implemented the until now mythical Coro::BDB module. |
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341 | - specialcase EV in Coro::AIO and Coro::BDB for extra speed. |
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342 | |
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343 | 4.31 Wed Dec 5 12:32:39 CET 2007 |
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344 | - remove warn statement form Coro::Util. |
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345 | |
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346 | 4.3 Tue Dec 4 20:33:14 CET 2007 |
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347 | - calls to the idle function could cause stack corruption |
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348 | when the stack changed. |
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349 | - do no longer rely on the presence of EV::DNS if EV is used |
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350 | (because it is gone), but instead take avdantage of EV::ADNS |
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351 | if available. |
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352 | - add ($) prototypes to all functions in Coro::Storable. |
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353 | - use a conventional (safer) idle callback in Coro::EV. |
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354 | - do accept quickly in Coro::Debug to avoid endless loops. |
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355 | |
| 8 | 4.22 Fri Nov 30 16:04:04 CET 2007 |
356 | 4.22 Fri Nov 30 16:04:04 CET 2007 |
| 9 | - really use optimised versions for Event and EV in Coro::Util |
357 | - really use optimised versions for Event and EV in Coro::Util |
| 10 | and Coro::Handle. |
358 | and Coro::Handle. |
| 11 | |
359 | |
