| 1 | Revision history for Perl extension Coro. |
1 | Revision history for Perl extension Coro. |
| 2 | |
2 | |
| 3 | TODO: should explore PerlIO::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)). |
| 7 | |
7 | |
| 8 | 4.748 |
8 | TODO: CF_RUNNING makes sense only for Coros, not States |
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9 | - add default config for MirOS, which seems to be a bug-to-bug |
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10 | compatible fork of openbsd ("world domination by releasing |
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11 | openbsd cvs before the openbsd folks do it" or so :). |
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12 | - free_padlist did destroy the names pad, not good, but didn't |
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13 | seem to bother perl - this could fix issues such as eval "" |
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14 | inside a function called form multiple coroutines. |
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15 | - use a different method to detect destruction time. |
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16 | - be more careful when freeing padlists just before global |
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17 | destruction. |
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18 | - fixed and expanded the call/cc example. |
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19 | - renamed _terminate to _coro_run. |
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20 | |
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21 | 5.11 Tue Nov 25 21:49:05 CET 2008 |
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22 | - DEBUGGING in 5.10.0 is a mess: it constantly flags perfectly |
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23 | working code with failed assertions, introducing more bugs than |
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24 | it fixes, requiring elaborate workarounds :( |
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25 | |
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26 | 5.1 Mon Nov 24 08:54:59 CET 2008 |
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27 | - wrote a small introductory tutorial - Coro::Intro. |
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28 | - convert Coro::Timer, Coro::Select and Coro::Util to rouse API. |
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29 | - Coro::Select did errornously dup the file descriptors |
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30 | and didn't work with all AnyEvent backends. |
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31 | - Coro::Select wasn't imported correctly form Coro::LWP, causing blocking |
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32 | LWP data transfers. |
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33 | - disassociate c contexts from coro objects - this is agruably more |
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34 | correct, but mostly allows sharing of cctxs between coro and state |
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35 | objects, for added memory savings and speed increases. |
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36 | - bumped $Coro::POOL_RSS up to 32kb by default. |
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37 | - no longer set the optype to OP_CUSTOM, as B::* understandably |
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38 | doesn't like this very much (and we *are* a type of entersub). |
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39 | - implement state cloning, just to prove that call/cc can be done. |
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40 | - automatically load Coro::AnyEvent in Coro::Handle. |
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41 | - wrap ->cancel calls in eval inside Coro::Handle as EV watchers |
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42 | do not have this method (and don't need it either). |
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43 | - speed up generic anyevent methods in Coro::Handle by using rouse |
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44 | callbacks. |
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45 | - allow coroutines in $Coro::IDLE, speeding up Coro::AnyEvent and |
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46 | others. It also makes the debugger happier, as you can trace |
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47 | through the idle threads now. |
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48 | - add comppad_name* and hints ($^H, %^H) to per-thread variables. |
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49 | - eg/event was pretty broken. |
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50 | - better 5.8.6 compatibility. |
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51 | |
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52 | 5.0 Thu Nov 20 10:35:05 CET 2008 |
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53 | - NEW ARCHITECTURE: use the latest 4.x version if you experience |
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54 | stability issues. |
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55 | - bump API version to 7 - all dependents must be recompiled. |
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56 | - removed timed_* functions - they were not being used anyways |
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57 | and should be replaced by a more generic mechanism - |
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58 | and were annoying to support anyways :) |
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59 | - removed SemaphoreSet's waiter method - use sem method instead. |
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60 | - Coro::Semaphore->adjust didn't correctly wake up enough waiters. |
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61 | - async_pool did free a scalar value twice |
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62 | ("Attempt to unreference..."). |
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63 | - fix a longstanding bug where calling terminate on a coro that |
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64 | was waiting for a semaphore that was just becoming available |
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65 | would cause a deadlock (semaphore would get into a state where |
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66 | it was available but waiters were still blocked). |
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67 | - calling throw on a coroutine that is waiting for a semaphore will |
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68 | no longer make it acquire the semaphore (and thus leak a count). |
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69 | - perl's process emulation is now not even theoretically supported |
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70 | anymore. |
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71 | - new functions Coro::rouse_cb and Coro::rouse_wait for easier |
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72 | conversion of callback-style to blocking-style. |
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73 | - new methods $coro->schedule_to and ->cede_to, to specifically |
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74 | schedule or cede to a specific coroutine. |
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75 | - new function Coro::Semaphore::wait. |
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76 | - use named constants in Coro::Channel (Richard Hundt). |
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77 | - directly patch the entersub opcode calling SLF functions (cede, |
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78 | transfer and so on). this does speed up context switching, but |
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79 | more importanly, it frees us from the hardcoded behaviour of |
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80 | entersub, so we might actually be able to return something from |
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81 | those functions and atcually create new ones. |
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82 | - take advantage of __builtin_frame_address on gcc. |
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83 | - expose THX in coroapi (not sure whether this was a wise decision, |
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84 | as "threaded" perls are running at half speed anyways). |
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85 | - implement execute_slf (schedule-like-function) interface that makes |
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86 | it possible to implement schedule-like-functions in XS. |
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87 | - use new SLF interface to massively speed up Coro::EV by roughly a |
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88 | factor of two. |
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89 | - used new SLF interface to massively speed up Coro::Semaphore by a |
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90 | factor of three. |
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91 | - used new SLF interface to speed up Coro::AIO by roughly a factor of |
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92 | four and reduce its memory usage considerably. |
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93 | - implement Coro::SemaphoreSet purely in terms of Coro::Semaphore, |
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94 | for a nice speedup and vastly more correct behaviour. Also implement |
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95 | a new method "sem" to get at the underlying semaphore object. |
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96 | - implement Coro::Channel in terms of Coro::Semaphore, for a moderate |
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97 | (in comparison) 20-40% speedup. |
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98 | - used new SLF interface to reimplement Coro::Signal gaining |
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99 | some unknown (because I was too lazy), but certain, speedup, and also |
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100 | making signals reliable for the first time. |
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101 | - used new SLF interface and other optimisations to speed up async_pool |
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102 | by a factor of two. It also doesn't rely on perl's exception mechanism |
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103 | to exit anymore. The overhead for terminating an async_pool, coro over |
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104 | a normal async is now very small. |
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105 | - sped up coroutine creation/destruction by 40%. |
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106 | - forgot to include Coro/libcoro/README in the dist for all these years. |
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107 | - work around a freebsd pthreads bug (manual testcancel is required as |
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108 | pthread_cond_wait isn't a cancellation point on freebsd). |
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109 | - use new rouse functions to speed up and simplify Coro::BDB. |
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110 | - make "prefer perl native functions" work with threaded perls. |
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111 | - condense Coro::Debug ps output, hint at v and w flags. |
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112 | - (libcoro) lots of minor cleanups and portability improvements. |
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113 | |
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114 | 4.914 Wed Nov 19 12:54:18 CET 2008 |
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115 | - fix a disastrous bug in the readline optimisation |
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116 | introduced in 4.801. |
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117 | |
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118 | 4.913 Sat Nov 15 07:58:28 CET 2008 |
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119 | - async_pool did free a scalar value twice |
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120 | ("Attempt to unreference..."). |
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121 | |
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122 | 4.912 Thu Nov 13 18:31:23 CET 2008 |
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123 | - minor cleanups. |
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124 | - use much larger stacks on linux and perl < 5.8.8. |
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125 | - Coro::Debug::new_unix_server did not unlink the socket |
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126 | when destroyed. |
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127 | |
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128 | 4.911 Tue Nov 11 04:26:17 CET 2008 |
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129 | - "port" to threaded perls. |
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130 | |
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131 | 4.91 Mon Nov 10 05:36:38 CET 2008 |
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132 | - the ->throw exception object no longer leaks. |
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133 | - creating a new cctx leaked a scopestack entry (memleak). |
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134 | - new coroutines didn't get created with a zero flags field |
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135 | (unknown impact). |
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136 | - calling ->throw on a not-yet-started coroutine should now work |
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137 | instead of being ignored. |
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138 | - ->throw is now supported on Coro::State objects. |
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139 | - clean up cctx creation code a bit. |
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140 | - entersub is actually a UNOP, not a LOGOP (not a bugfix). |
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141 | |
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142 | 4.9 Sat Nov 8 17:45:27 CET 2008 |
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143 | - (libcoro) did not preserve rbp with CORO_ASM (we are getting there). |
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144 | - (libcoro) no longer leak threads in the experimental pthread backend, |
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145 | also speed it up considerably. |
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146 | - (libcoro) do not rely on makecontext passing void *'s unscathed. |
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147 | - fix compiletime dependencies on libcoro in the Makefile. |
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148 | - cctx_count wasn't always updated properly. |
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149 | - Coro::State::cctx_stacksize wasn't applied correctly. |
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150 | - new function Coro::State::cctx_max_idle. |
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151 | - the default max number of idle C contexts is now 4. |
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152 | - (libcoro) try harder to get _setjmp/_longjmp. |
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153 | - (libcoro) cleanup and extend the libcoro API to officially |
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154 | allow the creation of empty source contexts. |
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155 | - very experimental workaround for the totally broken netbsd platform. |
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156 | - tried to hack around openbsd bugs. |
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157 | |
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158 | 4.804 Wed Nov 5 16:36:00 CET 2008 |
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159 | - Coro::Debug::new_unix_server would not create a non-blocking listening |
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160 | socket, sometimes causing freezes. |
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161 | - (libcoro) fix misaligned stack points for setjmp and assembly |
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162 | methods, which can cause crashes on x86/x86_64 with a sufficiently |
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163 | aggressive compiler. |
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164 | - new function: Coro::Debug::new_tcp_server. |
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165 | - move ->throw into the Coro class because it only works on coro objects. |
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166 | |
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167 | 4.803 Mon Nov 3 17:16:12 CET 2008 |
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168 | - (libcoro) use a global asm statement to become independent of gcc |
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169 | otpimisations for CORO_ASM (thanks to pippijn for the idea). |
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170 | - try to workaround yet another broken bsd, this time dragonfly. |
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171 | |
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172 | 4.802 Thu Oct 30 10:56:12 CET 2008 |
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173 | - support -fno-omit-frame-pointer on x86 with the assembly method. |
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174 | - tune 01_unblock.t tests a bit. |
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175 | |
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176 | 4.801 Wed Oct 22 18:33:37 CEST 2008 |
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177 | - improve readline speed for very long "lines". |
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178 | - backport to 5.8.8. |
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179 | |
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180 | 4.8 Thu Oct 2 13:34:40 CEST 2008 |
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181 | - new function Coro::AIO::aio_wait. |
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182 | - Coro.:AIO and Coro::BDB now "use Coro::AnyEvent". |
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183 | - greatly speed up and reduce memory usage of Coro::AIO requests. |
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184 | - implement some other ยต-optimisations. |
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185 | |
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186 | 4.749 Mon Sep 29 14:40:12 CEST 2008 |
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187 | - port to slow and broken pseudo-threaded perls. (courtesy pippijn). |
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188 | |
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189 | 4.748 Sat Sep 27 14:03:19 CEST 2008 |
| 9 | - implement, but do not document, PerlIO::cede(granularity). |
190 | - implement, but do not document, PerlIO::cede(granularity). |
| 10 | - Coro::Storable forgot to wrap Storable::pstore. |
191 | - Coro::Storable forgot to wrap Storable::pstore. |
| 11 | - work around the multitude of leaks and memory corruption |
192 | - work around the multitude of leaks and memory corruption |
| 12 | bugs in PerlIO::via by using our own C-level perliol. |
193 | bugs in PerlIO::via by using our own C-level perliol. As a side |
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194 | effect, Coro::Storable is now much, much, much faster. |
| 13 | |
195 | |
| 14 | 4.747 Tue Sep 23 01:59:41 CEST 2008 |
196 | 4.747 Tue Sep 23 01:59:41 CEST 2008 |
| 15 | - fix a per-cv memleak (one empty array was leaked per |
197 | - fix a per-cv memleak (one empty array was leaked per |
| 16 | code reference). |
198 | code reference). |
| 17 | - avoid a crash in coro->call|rss when the coroutine was already |
199 | - avoid a crash in coro->call|rss when the coroutine was already |
