| 1 | Revision history for Perl extension Coro. |
1 | Revision history for Perl extension Coro. |
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2 | |
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3 | TODO: should explore PerlIO::via::CoroCede and PerlIO::via::CoroAIO. |
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4 | TODO: maybe implement a default message channel, very much like Erlang |
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5 | (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 | - enable/disable tracing from a new coroutine, not a pooled one. |
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9 | |
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10 | 4.13 Wed Oct 24 07:26:45 CEST 2007 |
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11 | - add Coro::Storable::blocking_thaw. |
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12 | - use a vastly more complicated technique to localise |
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13 | $SIG{__WARN/DIE__} that also works on perls <= 5.8.8. |
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14 | - use a coroutine for the idle callback Coro::Event, |
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15 | instead of running Event in the current coroutine context. |
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16 | This also catches recursive invocations. |
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17 | - actually report fork errors in gethostbyname and inet_aton. |
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18 | |
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19 | 4.11 Thu Oct 11 02:40:24 CEST 2007 |
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20 | - port to threaded perls. |
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21 | |
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22 | 4.1 Thu Oct 11 02:38:16 CEST 2007 |
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23 | - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now |
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24 | be local to each coro (see Coro::State). |
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25 | - incompatible change: for very deep reasons, cede and cede_notself |
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26 | cannot return anything, so nothing will be returned. |
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27 | - possibly bring back 5.10 compatibility (untested). |
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28 | - work around stupid (and wrong) warning on 5.10 :(. |
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29 | - overlay the saved state over the context stack. This saves |
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30 | a few hundred bytes per coroutine on average and also |
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31 | speeds up context switching a bit. |
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32 | - further tune default stack sizes. |
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33 | - (more) correctly calculate stack usage in coro_rss. |
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34 | - Coro::Storable::blocking_* did not properly lock |
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35 | resulting in races between coroutines. |
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36 | - added Coro::Storable::guard. |
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37 | - stopping to trace a coroutine could destroy the cctx of |
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38 | an unrelated coroutine. |
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39 | - explain the relationship between Perl and C coroutines in |
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40 | more detail in Coro::State. |
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41 | - Coro::Util::inet_aton did not short-circuit dotted quad forms, |
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42 | causing a fork per resolve. This also affected Coro::Socket. |
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43 | - switch to a separate stack in $coro->call/eval to avoid |
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44 | invalidating pointers. |
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45 | |
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46 | 4.03 Sat Oct 6 21:24:00 CEST 2007 |
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47 | - added Coro::throw method. |
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48 | - minor code cleanups. |
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49 | |
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50 | 4.02 Sat Oct 6 02:36:47 CEST 2007 |
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51 | - fix a very minor per-coroutine memleak (a single codereference). |
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52 | - fixed a bug where the currently in-use c context would be freed |
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53 | prematurely (can happen only when programs change the stacksize |
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54 | or use tracing). |
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55 | - tracing can no longer keep a coro alive after it terminated. |
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56 | - do static branch prediction in the common path for gcc. gives |
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57 | about 2-5% speed improvement here. |
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58 | |
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59 | 4.01 Fri Oct 5 22:10:49 CEST 2007 |
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60 | - instead of recreating *a* standard output handle we simply |
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61 | use STDOUT, which is faster and hopefully more robust. |
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62 | |
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63 | 4.0 Fri Oct 5 12:56:00 CEST 2007 |
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64 | - incompatibly changed Coro::Storable::freeze. |
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65 | - major new feature: added Coro::Debug, for interactive coroutine |
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66 | debugging, tracing and much more. |
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67 | - major bug fix: unbelievable, but true: $_, $/ and many other |
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68 | "saved" variables actually weren't being saved. This has been fixed, |
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69 | of course, while increasing performance while losing all the save |
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70 | flags. |
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71 | - save flags are gone, and all the api functions dealing with them. |
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72 | - added Coro::Semaphore::adjust. |
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73 | - added Coro::Util::fork_eval. |
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74 | - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}. |
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75 | - added Coro::killall. |
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76 | - reduce initial stack sizes to allow for "micro-coroutines". |
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77 | - better async_pool resource management, moved parts of async_pool |
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78 | handling to XS (major speed improvement). |
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79 | - actually croak before modifying important data structures. |
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80 | - refuse to transfer while compiling. |
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81 | - possibly support eval EXPR better now. |
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82 | - enable assembly per default on linux+bsd x86+amd64. |
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83 | - all internal members were renamed _something for easier subclassing. |
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84 | - many minor tweaks. |
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85 | |
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86 | 3.63 Wed May 16 14:10:06 CEST 2007 |
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87 | - implement handcoded assembly for x86/amd64 SVR ABI. |
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88 | |
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89 | 3.62 Fri Apr 27 21:36:06 CEST 2007 |
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90 | - upgrade libcoro (which might set unwind info correctly). |
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91 | - change default on linux to setjmp/longjmp. |
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92 | |
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93 | 3.61 Thu Apr 19 12:36:18 CEST 2007 |
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94 | - Coro::Storable caused an endless loop when thawing invalid |
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95 | pst's sometimes. |
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96 | - use a Semaphore in Coro::Storable, as Storable doesn't |
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97 | seem to be reentrant (although it is documented to |
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98 | be threadsafe...). |
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99 | - fix Coro::Signal to bring back the original unreliable |
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100 | but stateful semantics. |
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101 | - fixed a lot of typos in Coro.pm (patch submitted by David |
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102 | Steinbrunner, which applied flawlessly). |
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103 | |
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104 | 3.6 Sat Apr 14 17:13:31 CEST 2007 |
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105 | - added some bugfixes to get eg/myhttpd working again. |
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106 | - added Coro::Storable for often-cede'ing freeze/thaw. |
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107 | - try to do a clean exit when a coroutine calls exit |
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108 | (EXPERIMENTAL). |
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109 | - got rid of indirect call through _coro_init. |
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110 | - updated the partly antique examples in eg/ to |
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111 | work again and be a bit less magic, too. |
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112 | - fixed Coro::Signal semantics to work as documented again. |
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113 | |
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114 | 3.55 Sun Mar 25 01:20:47 CET 2007 |
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115 | - add SAVE_DEFFH to save the default filehandle and enable |
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116 | it by default. |
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117 | - finally move socket-operations from Coro::Socket to Coro::Handle |
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118 | to be able to unblock foreign sockets. |
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119 | - add Coro::State::save_also and guarded_save. |
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120 | - add count accessor to Coro::Semaphore. |
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121 | - add Coro::State::cctx_stacksize. |
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122 | - just for the fun of it, do not rely on implicit context, |
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123 | which can dramatically improve performance, but people |
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124 | using windows-process-emulation perls do not care much about |
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125 | performance. |
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126 | |
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127 | 3.51 Sun Mar 4 14:18:04 CET 2007 |
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128 | - fixed a problem when you weakened references to Coro::State's |
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129 | (patch by Yuval Kogman). |
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130 | |
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131 | 3.501 Wed Feb 28 12:44:07 CET 2007 |
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132 | - rename some global symbols as macosx from hell redefines |
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133 | them without asking. |
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134 | |
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135 | 3.5 Tue Feb 13 20:22:53 CET 2007 |
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136 | - do AnyEvent model detection earlier, avoiding problems |
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137 | caused by first using AnyEvent and later Coro::Event. |
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138 | - implement and document Coro::Event event objects. |
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139 | - fix a potential problem in Coro::Event causing crashes. |
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140 | - initialise PL_comppad when creating a new coroutine, |
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141 | avoids crashes on early coro destruction. |
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142 | |
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143 | 3.41 Mon Jan 22 19:19:49 CET 2007 |
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144 | - readline on Coro::Handle did not support undefined $/, |
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145 | nor did it deliver partial lines on EOF or error. |
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146 | - implement malloc fallback for stack allocation because |
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147 | stupid broken idiotic OSX has a stupid broken |
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148 | idiotic fits-the-whole-os mmap "implementation" and |
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149 | my dick feels longer if Coro is portable even to |
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150 | obsolete platforms. |
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151 | |
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152 | 3.4 Fri Jan 19 21:52:54 CET 2007 |
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153 | - remove t/09_timer.t, as it isn't really testing much |
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154 | but was rather flaky in practise. |
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155 | - async_pool coro would keep arguments and callback alive until |
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156 | it was reused. |
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157 | - cancellation of a coroutine could cause spurious idle calls |
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158 | in cede_notself. |
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159 | |
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160 | 3.3 Sat Jan 6 03:45:00 CET 2007 |
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161 | - implement $coro->on_destroy. |
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162 | - Coro::Event blocking semantics have been changed, |
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163 | documented and - hopefully - improved. |
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164 | - fix nice adding, not subtracting, from priority. |
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165 | - fix ->prio and api_is_ready (patch by Mark Hinds). |
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166 | - fixed an assert ("... == prev__cctx->idle_te") |
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167 | that could errronously trigger. |
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168 | - fix various large and small memleaks. |
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169 | - use a (hopefully) more stable cancel implementation |
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170 | that immediately frees the coroutine data. |
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171 | - cede/cede_notself return a status now. |
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172 | - added Coro::guard function. |
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173 | - added a global coroutine pool for jobs (on my machine, |
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174 | I can create and execute 48k simple coros/s with async, |
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175 | and 128k coros with async_pool). |
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176 | - Coro::AIO now uses the coroutine priority as io priority. |
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177 | |
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178 | 3.2 Fri Dec 22 05:07:09 CET 2006 |
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179 | - improve portability to slightly older perls. |
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180 | - use cleaner coroutine destruction. |
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181 | - simplify configuration for users. |
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182 | - optionally (unrecommended) prefer perl functions over |
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183 | their coro replacements. |
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184 | |
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185 | 3.11 Tue Dec 5 13:11:24 CET 2006 |
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186 | - fixed some bogus assert's, but as perl.h disables assert even |
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187 | without NDEBUG (thank you very much), not too many people should |
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188 | notice (that did include myself). Andreas König noticed, though :) |
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189 | - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have |
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190 | it. Also noticed by Andreas König :) |
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191 | - save/restore tainted status. |
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192 | - verified to pass the testsuite on my 5.9.5. |
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193 | |
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194 | 3.1 Mon Dec 4 23:03:40 CET 2006 |
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195 | - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow). |
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196 | - incompatible change: transfer flags are now per-state. |
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197 | - give a better error message on deadlock. |
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198 | - document Coro::nready. |
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199 | - enhanced testsuite. |
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200 | |
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201 | 3.01 Sun Dec 3 23:47:42 CET 2006 |
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202 | - forgot to include Coro::Timer. |
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203 | |
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204 | 3.0 Sun Dec 3 22:57:25 CET 2006 |
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205 | - the "FINALLY COMPLETELY STABLE" release (coming soon: |
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206 | the "FAMOUS LAST WORDS" release). |
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207 | - implement a new stack sharing algorithm, which uses a stack |
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208 | pool (size currently hardcoded). |
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209 | - make stack sharing mandatory (it no longer uses a heuristic). |
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210 | - eval/die no longer cause weird problems under heavy use. |
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211 | - Coro::Event could cause livelocks if it was used but |
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212 | no Coro::Event watchers were used. |
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213 | - Coro::Event now uses asynccheck as prepare does not |
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214 | check for changed watchers. |
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215 | - Coro::Event allows multiple waiting coros and will wake up one |
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216 | per event. |
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217 | - Coro::Event should be cleaner and more efficient now. |
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218 | - new utility function Coro::unblock_sub. |
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219 | - document the sad fact that Event is no longer reentrant. |
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220 | - putting a coroutine into the ready queue twice could under |
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221 | some circumstances lead to stack corruption. |
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222 | - minor incompatibility: subclassing Coro::State is supported |
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223 | directly now without going through a _coro_state member. |
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224 | - state/coro switching is much faster now. |
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225 | - very minor optimisations and code/documentation cleanup. |
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226 | - avoid problems due to compiler inlining. |
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227 | - removed timers from Coro::Timer -> use AnyEvent instead. |
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228 | - replaced Coro::idle coroutine by (cleaner) idle handler. |
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229 | - updated to newest libcoro. |
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230 | - implement enhanced support for valgrind. |
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231 | - implement is_ready and return value for ready. |
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232 | - removed Coro::Cont, it was a misnomer (it's generators), |
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233 | and it was somewhat annoying to get it right. Will come back |
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234 | if somebody asks for it :) |
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235 | - many ->wait methods and Coro::Event could return |
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236 | spuriously without the event having happened. |
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237 | |
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238 | 2.5 Tue Nov 7 12:22:33 CET 2006 |
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239 | - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket |
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240 | use AnyEvent, moved them to Coro/. |
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241 | - added Coro::LWP which contains all the uglyness required to |
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242 | make LWP non-blocking. |
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243 | - should work with perl 5.9.x now (Andreas König made me do it). |
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244 | - fixed another bug in Coro::Select when the timeout was undef. |
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245 | - reuse PL_start_env for all coros, saves some memory per coroutine. |
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246 | - manage PL_top_env differently, hopefully to avoid panic: top_env. |
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247 | - timeout argument was not properly used in Coro::Socket. |
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248 | - allow limited forms of subclassing in Coro::Handle/Coro::Socket. |
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249 | - emulate undocumented(!) functionality of IO::Socket required |
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250 | by LWP(!!). |
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251 | - updated eg/lwp to work with newer lwp's. |
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252 | - remove "FATAL: uncaught exception" prefix. Coroutines that die |
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253 | kill the whole process, just as exceptions in the main "coroutine" |
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254 | did already. |
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255 | |
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256 | 2.1 Wed Nov 1 23:01:13 CET 2006 |
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257 | - fix a long-standing bug in Coro::Select where select with |
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258 | zero timeout would instead change the current default filehandle. |
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259 | - use a simpler and hopefully more robust way to clone padlists |
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260 | (uses less memory and a perl function instead of our own). |
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261 | - coro can now create a stack guard area on many architectures. |
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262 | - Coro::AIO properly reexports additional functions from IO::AIO. |
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263 | - updated libcoro with a workaround for OS X, |
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264 | pach and testing by Michael Schwern. |
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265 | |
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266 | 2.0 Tue Oct 24 05:47:17 CEST 2006 |
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267 | - support additional aio requests in Coro::AIO. |
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268 | |
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269 | 1.9 (never properly released due to a glitch) |
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270 | |
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271 | 1.8 Thu Feb 2 00:59:06 CET 2006 |
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272 | - applied suggested patch by SAMV to avoid problems during stupid |
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273 | mark & sweep gc run. |
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274 | - applied patch by Scott Walters for 5.9.3 compatibility. |
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275 | |
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276 | 1.7 Tue Dec 27 01:41:58 CET 2005 |
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277 | - added Coro::AIO, a thin wrapper around IO::AIO. |
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278 | - improved Makefile.PL explanations. |
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279 | |
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280 | 1.6 Mon Dec 12 21:30:05 CET 2005 |
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281 | - additionally save PM_curpm might fix as-of-yet |
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282 | unseen problems with regex matches being attributed to the |
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283 | wrong package. |
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284 | - add t/10_bugs.t, which currently checks against imho broken |
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285 | perls that use 0.26MB of stack space per Perl_magic_get |
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286 | invocation (newer linuxes) as opposed to the 0.0002MB perl |
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287 | normally uses. |
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288 | - make stacksize configurable for the ultimate debian experience. |
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289 | |
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290 | 1.51 Mon Dec 12 18:48:36 CET 2005 |
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291 | - remove debugging warn() accidentally left in Coro::Select. |
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292 | |
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293 | 1.5 Tue Nov 29 13:32:44 CET 2005 |
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294 | - use Coro::Event inside Coro::Select to avoid spurious deadlocks. |
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295 | - fix Coro::Select 'select'. |
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296 | - strict'ify some modules. |
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297 | - libcoro errornously restored the SIGUSR2 handler to SIGUSR1. |
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298 | - use XSLoader in selected modules. |
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299 | - remove some 5.6 compatibility cruft. |
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300 | |
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301 | 1.4 Tue Sep 6 00:11:05 CEST 2005 |
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302 | - libcoro did not take into account the trampoline on amd64, |
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303 | when 'l'inux method was used. |
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304 | |
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305 | 1.31 Tue Aug 30 23:31:33 CEST 2005 |
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306 | - some portability fixes/workarounds. |
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307 | |
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308 | 1.3 Sat Aug 20 03:08:56 CEST 2005 |
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309 | - no code changes. module seems to work fine. |
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310 | - improve Coro::State docs, remove reference to nonexisting |
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311 | Coro::State::flush method. |
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312 | - no longer autodetect windows, present it as an option instead. |
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313 | |
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314 | 1.2 Mon May 16 02:00:55 CEST 2005 |
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315 | - included libcoro.c earlier in State.xs, might improve portability. |
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316 | - use a faster and possibly more stable Coro::Cont implementation. |
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317 | - accept x86_64 in addition to amd64 for optimized linux-amd64 support. |
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318 | - fix bugs Coro::SemaphoreSet that could cause locks never to be freed. |
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319 | - fix bugs in CoroAPI.h and document it in Coro::MakeMaker. |
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320 | |
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321 | 1.11 Thu Mar 3 18:00:52 CET 2005 |
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322 | - change of contact address. |
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323 | |
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324 | 1.1 Tue Feb 22 20:51:16 CET 2005 |
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325 | - support [l]inux method on amd64. |
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326 | - allow some context switches while compiling/eval'ing. |
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327 | |
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328 | 1.0 Tue Aug 10 03:47:27 CEST 2004 |
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329 | - Event 0.89 fixes the bug again. |
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330 | - fix the remaining(??) memleak. I didn't free the cache-AV for |
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331 | padlists, so one AV per created anon-sub leaked. |
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332 | |
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333 | 0.97 Fri May 14 15:23:32 CEST 2004 |
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334 | - remove stupid gcc extension that was an experiment only anyway. |
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335 | |
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336 | 0.96 Thu May 13 18:09:29 CEST 2004 |
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337 | - tell people if they have yet another broken Event variant. |
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338 | - made Coro to work _better_ with threads (it seems that, as long |
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339 | as you use Coros in one thread only everything will work fine. |
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340 | Looking at the perl source the problem might be missing locking |
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341 | between Coro and some perl internal routines. That's not easily |
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342 | fixable). |
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343 | - (hopefully) got rid of the static xnext inside transfer. |
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344 | |
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345 | 0.95 Sun Feb 15 03:20:28 CET 2004 |
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346 | - removed Coro::State::flush, implemented a new and much |
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347 | faster caching mechanism by attaching magic to the CV. |
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348 | - a memleak with (real) closures remains. |
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349 | - dramatically reduced size of stacks to 65536 (linux/x86), after |
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350 | observing that even myhttpd never had more than a kilobyte |
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351 | of stack in use (stack is still only physically allocated in |
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352 | pagesize increments for systems suporting mmap). |
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353 | - fix for a "cygwin-64" architecture added, proposed by Stefan Traby. |
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354 | - fix for threaded perl. |
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355 | |
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356 | 0.9 Sun Nov 23 04:32:39 CET 2003 |
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357 | - fix a few very hard to track down but (of course) stupid |
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358 | memory leaks. |
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359 | - stringify version number to avoid locale problems :(. |
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360 | - perl 5.9.0 does not have SvPADBUSY, reported by Scott Walters, |
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361 | hopefully ignoring it "just works". |
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362 | |
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363 | 0.8 Wed Nov 5 19:38:40 CET 2003 |
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364 | - port to perl5.005_03, but only 5.8.x+ is supported! |
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365 | - honor LocalAddr even without LocalPort in Coro::Socket. |
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366 | |
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367 | 0.7 Tue May 27 03:12:38 CEST 2003 |
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368 | - the version jump indicates some level of testing, not gobs |
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369 | of new features. |
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370 | - uh... I found the prompt function in ExtUtils::MakeMaker. |
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371 | Highly correct stuff, that is... |
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372 | - fixed(?) a bug with die's in coroutines causing "panic: top_env". |
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373 | the fix is not well understood by the author, so beware :(. |
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374 | |
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375 | 0.652 Thu May 8 02:54:46 CEST 2003 |
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376 | - Applied patch by Slaven Rezic to set default to "s" on FreeBSD, |
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377 | cause version 4 doesn't have ucontext. |
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378 | - Benjamin Reed reported that setjmp works fine on darwin, |
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379 | so preselect it. |
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380 | |
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381 | 0.651 Sat Mar 29 15:00:23 CET 2003 |
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382 | - fix a bug in Coro::Handle where some bytes could get lost |
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383 | on reading, reported by jason@nichego.net. |
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384 | |
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385 | 0.65 Sun Mar 23 00:08:26 CET 2003 |
| 3 | - added a README.linux-glibc. |
386 | - added a README.linux-glibc. |
| 4 | - new module Coro::Select. |
387 | - new module Coro::Select. |
| 5 | - also save/restore PL_comppad, fixes segfaults with 5.8.1. |
388 | - also save/restore PL_comppad, fixes segfaults with 5.8.1. |
| 6 | (I never claimed that I know what I am doing ;). |
389 | (I never claimed that I know what I am doing ;). |
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390 | - set default to setjmp/longjmp on non-x86-linux. |
| 7 | |
391 | |
| 8 | 0.6 Thu Nov 21 11:09:06 CET 2002 |
392 | 0.6 Thu Nov 21 11:09:06 CET 2002 |
| 9 | - made lazy context switching the default. |
393 | - made lazy context switching the default. |
| 10 | - fixed the bug where SemaphoreSet::guard |
394 | - fixed the bug where SemaphoreSet::guard |
| 11 | was the same as timed_guard and timed_guard was missing. |
395 | was the same as timed_guard and timed_guard was missing. |
