| 1 | Revision history for Perl extension Coro. |
1 | Revision history for Perl extension Coro. |
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2 | |
| 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: __GCC_HAVE_DWARF2_CFI_ASM |
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6 | |
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7 | 6.29 |
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8 | - when an on_destroy handler destructs the coro currently being |
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9 | destructed a perl scalar could be accessed after being freed, |
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10 | likely causing a crash. |
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11 | |
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12 | 6.28 Wed Mar 6 06:58:02 CET 2013 |
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13 | - clean remnants of existing __DIE__ and __WARN__ handlers so |
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14 | they lose their magic and will not cause segfaults later |
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15 | (testcase by Andrey Sagulin). |
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16 | - improved Coro::State documentation a bit. |
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17 | - Coro::Debug::command now flushes the output. |
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18 | - add hack detection code for x32 abi, because the braindead slugs |
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19 | who designed that made it look exactly like x86_64 without |
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20 | providing proper compile time symbols to test for it. as a result, |
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21 | this detection cannot work reliably. |
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22 | - valgrind stack registering was broken. |
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23 | - do not rely on Time::HiRes anymore in Coro::Debug. |
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24 | |
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25 | 6.23 Fri Dec 7 23:36:37 CET 2012 |
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26 | - use experimental fiber implementation on native windows |
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27 | perls. |
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28 | - use sizeof (void *) as multiplication factor for stack sizes, |
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29 | to accomodate the totally braindamaged microsoft 64 bit "os". |
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30 | - changed verifier host from win2k-ap510-32 to win7-sp516-32/64. |
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31 | activeperl 5.16 crashes when PerlIO_define_layer is called due |
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32 | to some bug in the perl dll, strawberry perl at least passes |
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33 | the testsuite. |
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34 | - implement Coro::Handle->peeraddr/host/port, for slightly |
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35 | improved compatibility with LWP. |
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36 | - implement 5.17 compatibility by almost blindly applying a |
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37 | good-looking patch by Father Chrysostomos. |
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38 | - move stack management functions into libcoro 3. |
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39 | - libcoro version 3 "released". |
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40 | - support magic values as timed_io_once args. |
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41 | - recommend AnyEvent 7+ or EV 4+, also require EV |
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42 | version 4 or newer for Coro::EV. |
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43 | |
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44 | 6.10 Tue Oct 9 01:14:27 CEST 2012 |
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45 | - updated ecb.h, it had a typo that caused it to not compile on many |
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46 | big endian systems (reported by many people). |
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47 | - disable memory fences in ecb.h to improve portability. |
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48 | |
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49 | 6.09 Sat Oct 6 23:25:02 CEST 2012 |
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50 | - Coro::EV I/O watchers were not interruptible by exceptions |
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51 | (Coro::State::throw) (testcase by sten). |
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52 | - ->throw now puts threads into the ready queue, as this seems to |
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53 | be expected by existing code, and code that doesn't cope with spurious |
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54 | wakeups needs fixing anyway. |
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55 | - use fd -1 in mmap. |
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56 | - cast I32 to int in error message printf. |
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57 | - warn about broken so-called "hardened" kernels. |
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58 | |
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59 | 6.08 Fri Apr 13 12:05:47 CEST 2012 |
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60 | - be more aggressive about exiting like perl does - formerly, |
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61 | exiting from the non-main thread would not execute END blocks. |
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62 | |
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63 | 6.07 Fri Nov 11 21:21:48 CET 2011 |
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64 | - work around a bug in PerlIO (setting $SIG{__WARN__} to a PVCV). |
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65 | - update ecb.h. |
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66 | |
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67 | 6.06 Mon Aug 8 23:59:48 CEST 2011 |
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68 | - cygwin unfortunately patches the stack at runtime, so we use the pthreads |
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69 | backend, which is an order of magnitude slower. unfortunately, cygwins |
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70 | pthread implementation isn't very complete either, so allocate the stack |
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71 | twice just to be sure. |
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72 | (note: cygwin also enables mymalloc, which is NOT THREADSAFE ON WINDOWS, |
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73 | in its ithreaded perl - best recompile cygwin and use the 'w'indows |
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74 | backend for much better performance. also disable ithreads for |
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75 | even better performance...). |
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76 | |
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77 | 6.05 Thu Aug 4 21:36:36 CEST 2011 |
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78 | - blush, condvar values would not be propagated from send to recv anymore |
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79 | (reported by Chip Salzenberg). |
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80 | - use exponential increase for the readline buffer length in |
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81 | Coro::Handle. also reduce initial allocation to 1020 from 4096 bytes. |
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82 | |
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83 | 6.04 Wed Aug 3 17:15:45 CEST 2011 |
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84 | - use even more efficient and more compatible condvars for |
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85 | compatibility to AnyEvent 6.x :) |
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86 | - more inconsequential ecb.h updates. |
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87 | |
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88 | 6.03 Wed Aug 3 11:41:30 CEST 2011 |
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89 | - change how Coro patches AnyEvent condvars for compatibility to |
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90 | AnyEvent 6.x. |
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91 | - update ecb.h, to no longer include <pthread.h> in case WinNT.h |
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92 | hasn't been included. |
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93 | |
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94 | 6.02 Wed Jul 13 04:35:19 CEST 2011 |
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95 | - "improve portability to Gentoo" - gentoo manages to put perl variables |
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96 | in memory areas that are farther than 2gb apart, which the jit couldn't |
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97 | handle and barfed. now it's just a bit slower on gentoo and similar |
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98 | systems. |
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99 | |
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100 | 6.01 Sun Jul 3 12:31:14 CEST 2011 |
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101 | - workarounds are good, but the test for whether pthreads are used |
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102 | was not good. thisone should be better. |
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103 | - check differently whether gcc generates cfi instructions itself. |
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104 | |
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105 | 6.0 Wed Jun 29 19:43:35 CEST 2011 |
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106 | - INCOMPATIBLE CHANGE: unreferenced coro objects will now be |
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107 | destroyed and cleaned up automatically (e.g. async { schedule }). |
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108 | - implement a JIT compiler for part of the thread switch code, |
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109 | which gives a 50% speed improvement on threaded perls, and |
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110 | about 4% on non-thraeded perls (so threaded perls now finally |
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111 | reach about half the speed of non-threaded perls). |
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112 | - slightly modernise Coro::Intro, add section about rouse functions. |
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113 | - avoid DEFSV and ERRSV, giving another 10% improvement |
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114 | in thread switching. |
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115 | - Coro::State->is_destroyed is now called is_zombie. |
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116 | - implement a Coro->safe_cancel method that might fail, but |
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117 | cancels in a "safer" way if it succeeds. |
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118 | - add preliminary support for DEBUGGING perls. |
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119 | - get rid of two hash-accesses when initialising a new Coro - this |
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120 | speeds up coro creation by almost a factor of two. |
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121 | - croak when a coro that is being cancelled tries to block |
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122 | (e.g. while executing a guard block), instead of crashing or |
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123 | deadlocking. |
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124 | - use a more robust and also faster method to identify Coro::State |
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125 | objects - speeds up everything a bit. |
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126 | - implement Coro->cancel in XS for a 20% speed improvement, and to |
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127 | be able to implement mutual cancellation. |
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128 | - speed up context switches by a percent or two by more efficiently |
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129 | allocating context stack entries. |
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130 | - implement Coro->join and Coro->on_destroy in XS for a speedup and |
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131 | a reduction in memory use. |
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132 | - cancelling a coro while it itself is cancelling another coro is |
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133 | now supported and working, instead of triggering an assertion. |
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134 | - be a bit more crash-resistant when calling (buggy) on_destroy |
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135 | callbacks (best effort). |
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136 | - move on_destroy into the slf_frame, to allow extension slf |
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137 | functions to have destructors. |
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138 | - get rid if coro refcounting - simply crash in other interpreter |
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139 | threads by nulling the pointers on clone. |
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140 | - simplify warn/die hook handling when loading Coro - the convoluted |
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141 | logic seems to be no longer neccessary. |
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142 | - use libecb instead of our own home-grown gcc hacks. |
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143 | - document alternatives to Coro::LWP. Please use them :) |
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144 | - work around another mindless idiotic NEEDLESS bug in openbsd/mirbsds |
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145 | sigaltstack. Really. wine suffers from it, erlang suffers from it, |
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146 | and it's known since at least 2006. |
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147 | |
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148 | 5.372 Wed Feb 23 06:14:30 CET 2011 |
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149 | - apparently mingw doesn't provide a working gettimeofday, try to |
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150 | work around that by relying on Time::HiRes (indirectly brought to |
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151 | my attention by Max Maischein). |
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152 | - fix some portability issues when Time::HiRes was used. |
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153 | |
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154 | 5.371 Mon Feb 21 14:36:08 CET 2011 |
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155 | - backport to windows process emulation code again. |
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156 | |
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157 | 5.37 Sat Feb 19 07:49:44 CET 2011 |
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158 | - add a big "Coro thread life cycle" section to "man Coro". |
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159 | - try a tentative workaround against the breakage that 5.13 has |
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160 | introduced without depreciation period. sigh. |
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161 | - no longer use Time::HiRes if gettimeofday is available, which |
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162 | saves quite a lot of memory. |
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163 | |
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164 | 5.36 Sun Feb 13 05:33:41 CET 2011 |
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165 | - automatically load Coro::Channel, Coro::RWLock, Coro::Semaphore, |
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166 | Coro::SemaphoreSet, Coro::Signal and Coro::Specific on first "new" |
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167 | method call. |
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168 | - undocument Coro::Timer::sleep and obsolete whole module. |
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169 | - optimise Coro::Timer::timeout memory and cpu usage. |
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170 | - slightly updated Coro::Intro for recent changes. |
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171 | - do not initialise PL_dirty anymore. |
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172 | |
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173 | 5.25 Thu Nov 11 01:08:39 CET 2010 |
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174 | - try a different approach on netbsd - netbsd 5 finally has marginally |
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175 | working pthreads, but still broken ucontext/sigaltstack. |
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176 | - openbsd 4.8 finally got their act together, Coro works out of the box |
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177 | with asm, setjmp and pthreads (no change, just informational). |
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178 | |
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179 | 5.24 Sat Oct 23 11:27:12 CEST 2010 |
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180 | - port to the EV 4.0 API. |
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181 | - work around bugs in mingw32, making strawberry perl work |
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182 | out of the box. |
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183 | - correctly modify Coro::AIO function prototypes |
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184 | so that they reflect the "no optional parameters" rule. |
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185 | - "ported" libcoro to C++. |
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186 | |
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187 | 5.23 Mon May 17 18:50:42 CEST 2010 |
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188 | - be more resistant to ordering changes when initialising |
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189 | Coro::AnyEvent, Coro::EV and Coro::Event (reported by Matthias |
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190 | Waldorf). |
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191 | - document that perl 5.12 deliberately removed support for cloning. |
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192 | |
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193 | 5.22 Wed Apr 14 03:55:35 CEST 2010 |
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194 | - correctly return udnef on errors in Coro::Handle::read/write |
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195 | (testcase by Marc Mims). |
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196 | - convert Coro::Util into a "perl compatibility wrapper" - the functions |
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197 | are less useful now, but are drop-in replacements for existing |
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198 | functions, listing better alternatives in the documentation. This also |
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199 | fixes a bug in Coro::LWP which naively substituted Socket::inet_aton |
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200 | with Coro::Util::inet_aton. |
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201 | - do not override $Coro::idle unconditionally in Coro.pm, as other |
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202 | modules could have provided their own idle coro already |
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203 | (for exmaple, Coro::AnyEvent). |
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204 | - fix Coro::Util::gethost* functions. |
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205 | - Coro::Timer corretcly exports it's symbols (reported by Hideki Yamamura). |
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206 | |
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207 | 5.21 Wed Dec 16 07:19:51 CET 2009 |
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208 | - automatically load Coro::AnyEvent when AnyEvent and Coro are used |
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209 | together. |
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210 | - add some examples on how to combine other event loops with Coro in |
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211 | Coro::AnyEvent, and how to run it (and not to block). Seems to be |
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212 | the most common source of confusion. |
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213 | - try to catch people naively blocking in an event callback. |
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214 | - work around the perl filehandle bug issue in conjunction with |
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215 | older common::sense (as indirectly pointed out by ZSystem). |
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216 | - clarify the "not from signal handlers" section. |
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217 | |
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218 | 5.2 Sun Oct 4 14:54:24 CEST 2009 |
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219 | - Coro::Storable destroyed the prototypes of the functions it wrapped. |
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220 | - export rouse_cb and rouse_wait by default now. |
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221 | - fix various prototype mismatches in Coro::AnyEvent and Coro::Handle. |
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222 | - new method $state->swap_sv. |
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223 | - added section on "windows process emulation" to the manpage, |
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224 | after a not-so-fruitful (nor-friendly) "discussion" with chip |
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225 | salzenberg (discussion implies arguments, but his only arguments |
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226 | were ad-hominems, one wonders why he started it in the first |
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227 | place). I hope this explains it well enough for him to understand, |
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228 | and maybe well enough for others to understand. |
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229 | - use common::sense everywhere now. |
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230 | - idle callbacks are no longer supported, use idle coros instead. |
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231 | - print a thread listing when a deadlock is detected. |
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232 | |
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233 | 5.17 Sat Aug 22 23:09:31 CEST 2009 |
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234 | - work around a bug in the perl debugger causing crashes |
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235 | when running under the debugger by marking _pool_handler as nodebug. |
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236 | - speed up Coro::async considerably. |
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237 | - try some hacks to get netbsd to work "more often" - their broken |
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238 | setjmp/longjmp, ucontext *and* phtreads are really hard on Coro. |
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239 | - convert Coro to AE 5.0 API. |
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240 | |
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241 | 5.162 Tue Jul 28 04:04:03 CEST 2009 |
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242 | - perl 5.8.2 is now minimum requirement. |
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243 | - skip t/19_handle.t on broken windows perls. |
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244 | |
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245 | 5.161 Wed Jul 22 04:47:38 CEST 2009 |
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246 | - Coro::AnyEvent::poll could have a different prototype when EV was |
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247 | used as backend (analyzed by Tatsuhiko Miyagawa). |
| 11 | - Coro::AnyEvent errornously initialised the event loop when loaded, |
248 | - Coro::AnyEvent errornously initialised the event loop when loaded, |
| 12 | not on demand. |
249 | not on demand. |
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250 | - try to workaround rare */t/01_unblock.t failures. |
| 13 | |
251 | |
| 14 | 5.16 Tue Jul 21 01:44:37 CEST 2009 |
252 | 5.16 Tue Jul 21 01:44:37 CEST 2009 |
| 15 | - Coro::AnyEvent failed to hook into the event loop |
253 | - Coro::AnyEvent failed to hook into the event loop |
| 16 | when no threads had been readied between detecting |
254 | when no threads had been readied between detecting |
| 17 | the event loop and actually running it. |
255 | the event loop and actually running it. |
