| 1 | Revision history for Perl extension Coro. |
1 | Revision history for Perl extension Coro. |
| 2 | |
2 | |
| 3 | TODO: should explore PerlIO::coroaio (perl leaks like hell). |
3 | TODO: should explore PerlIO::coroaio (perl leaks like hell). |
| 4 | TODO: channel->maxsize(newsize)? |
4 | TODO: channel->maxsize(newsize)? |
| 5 | TODO: http://www.microsoft.com/msj/archive/s2ce.aspx |
5 | TODO: __GCC_HAVE_DWARF2_CFI_ASM |
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6 | |
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7 | 6.31 Thu May 9 07:39:48 CEST 2013 |
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8 | - Coro::AIO requests would crash if the thread was ready'd |
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9 | while the request was ongoing. |
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10 | |
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11 | 6.29 Wed May 8 02:55:18 CEST 2013 |
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12 | - when an on_destroy handler destructs the coro currently being |
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13 | destructed a perl scalar could be accessed after being freed, |
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14 | likely causing a crash. |
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15 | |
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16 | 6.28 Wed Mar 6 06:58:02 CET 2013 |
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17 | - clean remnants of existing __DIE__ and __WARN__ handlers so |
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18 | they lose their magic and will not cause segfaults later |
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19 | (testcase by Andrey Sagulin). |
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20 | - improved Coro::State documentation a bit. |
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21 | - Coro::Debug::command now flushes the output. |
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22 | - add hack detection code for x32 abi, because the braindead slugs |
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23 | who designed that made it look exactly like x86_64 without |
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24 | providing proper compile time symbols to test for it. as a result, |
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25 | this detection cannot work reliably. |
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26 | - valgrind stack registering was broken. |
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27 | - do not rely on Time::HiRes anymore in Coro::Debug. |
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28 | |
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29 | 6.23 Fri Dec 7 23:36:37 CET 2012 |
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30 | - use experimental fiber implementation on native windows |
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31 | perls. |
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32 | - use sizeof (void *) as multiplication factor for stack sizes, |
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33 | to accomodate the totally braindamaged microsoft 64 bit "os". |
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34 | - changed verifier host from win2k-ap510-32 to win7-sp516-32/64. |
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35 | activeperl 5.16 crashes when PerlIO_define_layer is called due |
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36 | to some bug in the perl dll, strawberry perl at least passes |
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37 | the testsuite. |
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38 | - implement Coro::Handle->peeraddr/host/port, for slightly |
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39 | improved compatibility with LWP. |
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40 | - implement 5.17 compatibility by almost blindly applying a |
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41 | good-looking patch by Father Chrysostomos. |
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42 | - move stack management functions into libcoro 3. |
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43 | - libcoro version 3 "released". |
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44 | - support magic values as timed_io_once args. |
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45 | - recommend AnyEvent 7+ or EV 4+, also require EV |
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46 | version 4 or newer for Coro::EV. |
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47 | |
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48 | 6.10 Tue Oct 9 01:14:27 CEST 2012 |
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49 | - updated ecb.h, it had a typo that caused it to not compile on many |
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50 | big endian systems (reported by many people). |
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51 | - disable memory fences in ecb.h to improve portability. |
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52 | |
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53 | 6.09 Sat Oct 6 23:25:02 CEST 2012 |
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54 | - Coro::EV I/O watchers were not interruptible by exceptions |
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55 | (Coro::State::throw) (testcase by sten). |
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56 | - ->throw now puts threads into the ready queue, as this seems to |
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57 | be expected by existing code, and code that doesn't cope with spurious |
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58 | wakeups needs fixing anyway. |
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59 | - use fd -1 in mmap. |
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60 | - cast I32 to int in error message printf. |
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61 | - warn about broken so-called "hardened" kernels. |
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62 | |
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63 | 6.08 Fri Apr 13 12:05:47 CEST 2012 |
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64 | - be more aggressive about exiting like perl does - formerly, |
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65 | exiting from the non-main thread would not execute END blocks. |
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66 | |
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67 | 6.07 Fri Nov 11 21:21:48 CET 2011 |
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68 | - work around a bug in PerlIO (setting $SIG{__WARN__} to a PVCV). |
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69 | - update ecb.h. |
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70 | |
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71 | 6.06 Mon Aug 8 23:59:48 CEST 2011 |
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72 | - cygwin unfortunately patches the stack at runtime, so we use the pthreads |
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73 | backend, which is an order of magnitude slower. unfortunately, cygwins |
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74 | pthread implementation isn't very complete either, so allocate the stack |
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75 | twice just to be sure. |
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76 | (note: cygwin also enables mymalloc, which is NOT THREADSAFE ON WINDOWS, |
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77 | in its ithreaded perl - best recompile cygwin and use the 'w'indows |
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78 | backend for much better performance. also disable ithreads for |
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79 | even better performance...). |
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80 | |
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81 | 6.05 Thu Aug 4 21:36:36 CEST 2011 |
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82 | - blush, condvar values would not be propagated from send to recv anymore |
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83 | (reported by Chip Salzenberg). |
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84 | - use exponential increase for the readline buffer length in |
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85 | Coro::Handle. also reduce initial allocation to 1020 from 4096 bytes. |
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86 | |
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87 | 6.04 Wed Aug 3 17:15:45 CEST 2011 |
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88 | - use even more efficient and more compatible condvars for |
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89 | compatibility to AnyEvent 6.x :) |
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90 | - more inconsequential ecb.h updates. |
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91 | |
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92 | 6.03 Wed Aug 3 11:41:30 CEST 2011 |
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93 | - change how Coro patches AnyEvent condvars for compatibility to |
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94 | AnyEvent 6.x. |
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95 | - update ecb.h, to no longer include <pthread.h> in case WinNT.h |
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96 | hasn't been included. |
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97 | |
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98 | 6.02 Wed Jul 13 04:35:19 CEST 2011 |
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99 | - "improve portability to Gentoo" - gentoo manages to put perl variables |
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100 | in memory areas that are farther than 2gb apart, which the jit couldn't |
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101 | handle and barfed. now it's just a bit slower on gentoo and similar |
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102 | systems. |
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103 | |
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104 | 6.01 Sun Jul 3 12:31:14 CEST 2011 |
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105 | - workarounds are good, but the test for whether pthreads are used |
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106 | was not good. thisone should be better. |
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107 | - check differently whether gcc generates cfi instructions itself. |
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108 | |
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109 | 6.0 Wed Jun 29 19:43:35 CEST 2011 |
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110 | - INCOMPATIBLE CHANGE: unreferenced coro objects will now be |
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111 | destroyed and cleaned up automatically (e.g. async { schedule }). |
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112 | - implement a JIT compiler for part of the thread switch code, |
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113 | which gives a 50% speed improvement on threaded perls, and |
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114 | about 4% on non-thraeded perls (so threaded perls now finally |
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115 | reach about half the speed of non-threaded perls). |
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116 | - slightly modernise Coro::Intro, add section about rouse functions. |
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117 | - avoid DEFSV and ERRSV, giving another 10% improvement |
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118 | in thread switching. |
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119 | - Coro::State->is_destroyed is now called is_zombie. |
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120 | - implement a Coro->safe_cancel method that might fail, but |
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121 | cancels in a "safer" way if it succeeds. |
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122 | - add preliminary support for DEBUGGING perls. |
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123 | - get rid of two hash-accesses when initialising a new Coro - this |
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124 | speeds up coro creation by almost a factor of two. |
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125 | - croak when a coro that is being cancelled tries to block |
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126 | (e.g. while executing a guard block), instead of crashing or |
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127 | deadlocking. |
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128 | - use a more robust and also faster method to identify Coro::State |
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129 | objects - speeds up everything a bit. |
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130 | - implement Coro->cancel in XS for a 20% speed improvement, and to |
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131 | be able to implement mutual cancellation. |
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132 | - speed up context switches by a percent or two by more efficiently |
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133 | allocating context stack entries. |
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134 | - implement Coro->join and Coro->on_destroy in XS for a speedup and |
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135 | a reduction in memory use. |
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136 | - cancelling a coro while it itself is cancelling another coro is |
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137 | now supported and working, instead of triggering an assertion. |
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138 | - be a bit more crash-resistant when calling (buggy) on_destroy |
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139 | callbacks (best effort). |
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140 | - move on_destroy into the slf_frame, to allow extension slf |
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141 | functions to have destructors. |
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142 | - get rid if coro refcounting - simply crash in other interpreter |
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143 | threads by nulling the pointers on clone. |
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144 | - simplify warn/die hook handling when loading Coro - the convoluted |
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145 | logic seems to be no longer neccessary. |
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146 | - use libecb instead of our own home-grown gcc hacks. |
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147 | - document alternatives to Coro::LWP. Please use them :) |
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148 | - work around another mindless idiotic NEEDLESS bug in openbsd/mirbsds |
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149 | sigaltstack. Really. wine suffers from it, erlang suffers from it, |
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150 | and it's known since at least 2006. |
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151 | |
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152 | 5.372 Wed Feb 23 06:14:30 CET 2011 |
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153 | - apparently mingw doesn't provide a working gettimeofday, try to |
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154 | work around that by relying on Time::HiRes (indirectly brought to |
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155 | my attention by Max Maischein). |
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156 | - fix some portability issues when Time::HiRes was used. |
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157 | |
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158 | 5.371 Mon Feb 21 14:36:08 CET 2011 |
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159 | - backport to windows process emulation code again. |
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160 | |
| 7 | 5.37 Sat Feb 19 07:49:44 CET 2011 |
161 | 5.37 Sat Feb 19 07:49:44 CET 2011 |
| 8 | - add a big "Coro thread life cycle" section to "man Coro". |
162 | - add a big "Coro thread life cycle" section to "man Coro". |
| 9 | - try a tentative workaround against the breakage that 5.13 has |
163 | - try a tentative workaround against the breakage that 5.13 has |
| 10 | introduced without depreciation period. sigh. |
164 | introduced without depreciation period. sigh. |
