| 1 | Revision history for Perl extension Coro. |
1 | Revision history for Perl extension Coro. |
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| 3 | TODO: should explore PerlIO::coroaio (perl leaks like hell). |
3 | TODO: should explore PerlIO::coroaio (perl leaks like hell). |
| 4 | TODO: maybe implement a default message channel, very much like Erlang's |
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| 5 | actor model (which is cool in a lot of important aspects (failures!), |
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| 6 | but very lacking in others (higher level ipc)). |
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| 7 | TODO: unready_all |
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| 8 | TODO: myhttpd header parsing |
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| 9 | TODO: channel->maxsize(newsize)? |
4 | TODO: channel->maxsize(newsize)? |
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5 | TODO: http://www.microsoft.com/msj/archive/s2ce.aspx |
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6 | |
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7 | 6.06 Mon Aug 8 23:59:48 CEST 2011 |
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8 | - cygwin unfortunately patches the stack at runtime, so we use the pthreads |
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9 | backend, which is an order of magnitutde slower. unfortunately, cygwins |
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10 | pthread implementation isn't very complete either, so allocate the stack |
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11 | twice just to be sure. |
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12 | (note: cygwin also enables mymalloc, which is NOT THREADSAFE ON WINDOWS, |
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13 | in its ithreaded perl - best recompile cygwin and use the 'w'indows |
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14 | backend for much better performance. also disable ithreads for |
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15 | even better performance...). |
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16 | |
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17 | 6.05 Thu Aug 4 21:36:36 CEST 2011 |
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18 | - blush, condvar values would not be propagated from send to recv anymore |
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19 | (reported by Chip Salzenberg). |
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20 | - use exponential increase for the readline buffer length in |
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21 | Coro::Handle. also reduce initial allocation to 1020 from 4096 bytes. |
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22 | |
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23 | 6.04 Wed Aug 3 17:15:45 CEST 2011 |
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24 | - use even more efficient and more compatible condvars for |
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25 | compatibility to AnyEvent 6.x :) |
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26 | - more inconsequential ecb.h updates. |
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27 | |
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28 | 6.03 Wed Aug 3 11:41:30 CEST 2011 |
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29 | - change how Coro patches AnyEvent condvars for compatibility to |
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30 | AnyEvent 6.x. |
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31 | - update ecb.h, to no longer include <pthread.h> in case WinNT.h |
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32 | hasn't been included. |
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33 | |
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34 | 6.02 Wed Jul 13 04:35:19 CEST 2011 |
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35 | - "improve portability to Gentoo" - gentoo manages to put perl variables |
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36 | in memory areas that are farther than 2gb apart, which the jit couldn't |
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37 | handle and barfed. now it's just a bit slower on gentoo and similar |
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38 | systems. |
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39 | |
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40 | 6.01 Sun Jul 3 12:31:14 CEST 2011 |
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41 | - workarounds are good, but the test for whether pthreads are used |
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42 | was not good. thisone should be better. |
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43 | - check differently whether gcc generates cfi instructions itself. |
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44 | |
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45 | 6.0 Wed Jun 29 19:43:35 CEST 2011 |
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46 | - INCOMPATIBLE CHANGE: unreferenced coro objects will now be |
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47 | destroyed and cleaned up automatically (e.g. async { schedule }). |
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48 | - implement a JIT compiler for part of the thread switch code, |
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49 | which gives a 50% speed improvement on threaded perls, and |
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50 | about 4% on non-thraeded perls (so threaded perls now finally |
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51 | reach about half the speed of non-threaded perls). |
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52 | - slightly modernise Coro::Intro, add section about rouse functions. |
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53 | - avoid DEFSV and ERRSV, giving another 10% improvement |
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54 | in thread switching. |
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55 | - Coro::State->is_destroyed is now called is_zombie. |
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56 | - implement a Coro->safe_cancel method that might fail, but |
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57 | cancels in a "safer" way if it succeeds. |
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58 | - add preliminary support for DEBUGGING perls. |
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59 | - get rid of two hash-accesses when initialising a new Coro - this |
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60 | speeds up coro creation by almost a factor of two. |
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61 | - croak when a coro that is being cancelled tries to block |
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62 | (e.g. while executing a guard block), instead of crashing or |
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63 | deadlocking. |
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64 | - use a more robust and also faster method to identify Coro::State |
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65 | objects - speeds up everything a bit. |
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66 | - implement Coro->cancel in XS for a 20% speed improvement, and to |
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67 | be able to implement mutual cancellation. |
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68 | - speed up context switches by a percent or two by more efficiently |
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69 | allocating context stack entries. |
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70 | - implement Coro->join and Coro->on_destroy in XS for a speedup and |
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71 | a reduction in memory use. |
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72 | - cancelling a coro while it itself is cancelling another coro is |
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73 | now supported and working, instead of triggering an assertion. |
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74 | - be a bit more crash-resistant when calling (buggy) on_destroy |
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75 | callbacks (best effort). |
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76 | - move on_destroy into the slf_frame, to allow extension slf |
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77 | functions to have destructors. |
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78 | - get rid if coro refcounting - simply crash in other interpreter |
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79 | threads by nulling the pointers on clone. |
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80 | - simplify warn/die hook handling when loading Coro - the convoluted |
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81 | logic seems to be no longer neccessary. |
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82 | - use libecb instead of our own home-grown gcc hacks. |
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83 | - document alternatives to Coro::LWP. Please use them :) |
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84 | - work around another mindless idiotic NEEDLESS bug in openbsd/mirbsds |
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85 | sigaltstack. Really. wine suffers from it, erlang suffers from it, |
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86 | and it's known since at least 2006. |
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87 | |
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88 | 5.372 Wed Feb 23 06:14:30 CET 2011 |
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89 | - apparently mingw doesn't provide a working gettimeofday, try to |
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90 | work around that by relying on Time::HiRes (indirectly brought to |
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91 | my attention by Max Maischein). |
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92 | - fix some portability issues when Time::HiRes was used. |
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93 | |
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94 | 5.371 Mon Feb 21 14:36:08 CET 2011 |
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95 | - backport to windows process emulation code again. |
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96 | |
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97 | 5.37 Sat Feb 19 07:49:44 CET 2011 |
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98 | - add a big "Coro thread life cycle" section to "man Coro". |
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99 | - try a tentative workaround against the breakage that 5.13 has |
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100 | introduced without depreciation period. sigh. |
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101 | - no longer use Time::HiRes if gettimeofday is available, which |
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102 | saves quite a lot of memory. |
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103 | |
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104 | 5.36 Sun Feb 13 05:33:41 CET 2011 |
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105 | - automatically load Coro::Channel, Coro::RWLock, Coro::Semaphore, |
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106 | Coro::SemaphoreSet, Coro::Signal and Coro::Specific on first "new" |
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107 | method call. |
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108 | - undocument Coro::Timer::sleep and obsolete whole module. |
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109 | - optimise Coro::Timer::timeout memory and cpu usage. |
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110 | - slightly updated Coro::Intro for recent changes. |
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111 | - do not initialise PL_dirty anymore. |
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112 | |
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113 | 5.25 Thu Nov 11 01:08:39 CET 2010 |
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114 | - try a different approach on netbsd - netbsd 5 finally has marginally |
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115 | working pthreads, but still broken ucontext/sigaltstack. |
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116 | - openbsd 4.8 finally got their act together, Coro works out of the box |
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117 | with asm, setjmp and pthreads (no change, just informational). |
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118 | |
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119 | 5.24 Sat Oct 23 11:27:12 CEST 2010 |
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120 | - port to the EV 4.0 API. |
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121 | - work around bugs in mingw32, making strawberry perl work |
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122 | out of the box. |
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123 | - correctly modify Coro::AIO function prototypes |
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124 | so that they reflect the "no optional parameters" rule. |
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125 | - "ported" libcoro to C++. |
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126 | |
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127 | 5.23 Mon May 17 18:50:42 CEST 2010 |
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128 | - be more resistant to ordering changes when initialising |
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129 | Coro::AnyEvent, Coro::EV and Coro::Event (reported by Matthias |
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130 | Waldorf). |
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131 | - document that perl 5.12 deliberately removed support for cloning. |
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132 | |
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133 | 5.22 Wed Apr 14 03:55:35 CEST 2010 |
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134 | - correctly return udnef on errors in Coro::Handle::read/write |
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135 | (testcase by Marc Mims). |
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136 | - convert Coro::Util into a "perl compatibility wrapper" - the functions |
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137 | are less useful now, but are drop-in replacements for existing |
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138 | functions, listing better alternatives in the documentation. This also |
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139 | fixes a bug in Coro::LWP which naively substituted Socket::inet_aton |
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140 | with Coro::Util::inet_aton. |
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141 | - do not override $Coro::idle unconditionally in Coro.pm, as other |
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142 | modules could have provided their own idle coro already |
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143 | (for exmaple, Coro::AnyEvent). |
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144 | - fix Coro::Util::gethost* functions. |
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145 | - Coro::Timer corretcly exports it's symbols (reported by Hideki Yamamura). |
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146 | |
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147 | 5.21 Wed Dec 16 07:19:51 CET 2009 |
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148 | - automatically load Coro::AnyEvent when AnyEvent and Coro are used |
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149 | together. |
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150 | - add some examples on how to combine other event loops with Coro in |
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151 | Coro::AnyEvent, and how to run it (and not to block). Seems to be |
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152 | the most common source of confusion. |
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153 | - try to catch people naively blocking in an event callback. |
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154 | - work around the perl filehandle bug issue in conjunction with |
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155 | older common::sense (as indirectly pointed out by ZSystem). |
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156 | - clarify the "not from signal handlers" section. |
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157 | |
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158 | 5.2 Sun Oct 4 14:54:24 CEST 2009 |
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159 | - Coro::Storable destroyed the prototypes of the functions it wrapped. |
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160 | - export rouse_cb and rouse_wait by default now. |
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161 | - fix various prototype mismatches in Coro::AnyEvent and Coro::Handle. |
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162 | - new method $state->swap_sv. |
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163 | - added section on "windows process emulation" to the manpage, |
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164 | after a not-so-fruitful (nor-friendly) "discussion" with chip |
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165 | salzenberg (discussion implies arguments, but his only arguments |
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166 | were ad-hominems, one wonders why he started it in the first |
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167 | place). I hope this explains it well enough for him to understand, |
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168 | and maybe well enough for others to understand. |
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169 | - use common::sense everywhere now. |
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170 | - idle callbacks are no longer supported, use idle coros instead. |
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171 | - print a thread listing when a deadlock is detected. |
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172 | |
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173 | 5.17 Sat Aug 22 23:09:31 CEST 2009 |
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174 | - work around a bug in the perl debugger causing crashes |
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175 | when running under the debugger by marking _pool_handler as nodebug. |
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176 | - speed up Coro::async considerably. |
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177 | - try some hacks to get netbsd to work "more often" - their broken |
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178 | setjmp/longjmp, ucontext *and* phtreads are really hard on Coro. |
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179 | - convert Coro to AE 5.0 API. |
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180 | |
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181 | 5.162 Tue Jul 28 04:04:03 CEST 2009 |
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182 | - perl 5.8.2 is now minimum requirement. |
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183 | - skip t/19_handle.t on broken windows perls. |
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184 | |
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185 | 5.161 Wed Jul 22 04:47:38 CEST 2009 |
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186 | - Coro::AnyEvent::poll could have a different prototype when EV was |
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187 | used as backend (analyzed by Tatsuhiko Miyagawa). |
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188 | - Coro::AnyEvent errornously initialised the event loop when loaded, |
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189 | not on demand. |
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190 | - try to workaround rare */t/01_unblock.t failures. |
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191 | |
| 11 | 5.16 Tue Jul 21 01:44:37 CEST 2009 |
192 | 5.16 Tue Jul 21 01:44:37 CEST 2009 |
| 12 | - Coro::AnyEvent failed to hook into the event loop |
193 | - Coro::AnyEvent failed to hook into the event loop |
| 13 | when no threads had been readied between detecting |
194 | when no threads had been readied between detecting |
| 14 | the event loop and actually running it. |
195 | the event loop and actually running it. |
