| 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: maybe implement a default message channel, very much like Erlang's |
4 | TODO: channel->maxsize(newsize)? |
| 5 | actor model (which is cool in a lot of important aspects (failures!), |
5 | TODO: http://www.microsoft.com/msj/archive/s2ce.aspx |
| 6 | but very lacking in others (higher level ipc)). |
6 | TODO: __GCC_HAVE_DWARF2_CFI_ASM |
| 7 | |
7 | |
| 8 | 5.0 |
8 | TODO: add peerhost/peerport from IO::Socket::INET etc. |
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9 | |
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10 | - recommend AnyEvent 7+ or EV 4+, also require EV |
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11 | version 4 or newer for Coro::EV. |
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12 | |
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13 | 6.10 Tue Oct 9 01:14:27 CEST 2012 |
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14 | - updated ecb.h, it had a typo that caused it to not compile on many |
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15 | big endian systems (reported by many people). |
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16 | - disable memory fences in ecb.h to improve portability. |
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17 | |
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18 | 6.09 Sat Oct 6 23:25:02 CEST 2012 |
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19 | - Coro::EV I/O watchers were not interruptible by exceptions |
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20 | (Coro::State::throw) (testcase by sten). |
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21 | - ->throw now puts threads into the ready queue, as this seems to |
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22 | be expected by existing code, and code that doesn't cope with spurious |
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23 | wakeups needs fixing anyway. |
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24 | - use fd -1 in mmap. |
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25 | - cast I32 to int in error message printf. |
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26 | - warn about broken so-called "hardened" kernels. |
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27 | |
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28 | 6.08 Fri Apr 13 12:05:47 CEST 2012 |
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29 | - be more aggressive about exiting like perl does - formerly, |
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30 | exiting from the non-main thread would not execute END blocks. |
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31 | |
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32 | 6.07 Fri Nov 11 21:21:48 CET 2011 |
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33 | - work around a bug in PerlIO (setting $SIG{__WARN__} to a PVCV). |
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34 | - update ecb.h. |
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35 | |
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36 | 6.06 Mon Aug 8 23:59:48 CEST 2011 |
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37 | - cygwin unfortunately patches the stack at runtime, so we use the pthreads |
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38 | backend, which is an order of magnitude slower. unfortunately, cygwins |
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39 | pthread implementation isn't very complete either, so allocate the stack |
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40 | twice just to be sure. |
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41 | (note: cygwin also enables mymalloc, which is NOT THREADSAFE ON WINDOWS, |
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42 | in its ithreaded perl - best recompile cygwin and use the 'w'indows |
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43 | backend for much better performance. also disable ithreads for |
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44 | even better performance...). |
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45 | |
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46 | 6.05 Thu Aug 4 21:36:36 CEST 2011 |
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47 | - blush, condvar values would not be propagated from send to recv anymore |
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48 | (reported by Chip Salzenberg). |
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49 | - use exponential increase for the readline buffer length in |
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50 | Coro::Handle. also reduce initial allocation to 1020 from 4096 bytes. |
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51 | |
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52 | 6.04 Wed Aug 3 17:15:45 CEST 2011 |
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53 | - use even more efficient and more compatible condvars for |
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54 | compatibility to AnyEvent 6.x :) |
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55 | - more inconsequential ecb.h updates. |
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56 | |
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57 | 6.03 Wed Aug 3 11:41:30 CEST 2011 |
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58 | - change how Coro patches AnyEvent condvars for compatibility to |
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59 | AnyEvent 6.x. |
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60 | - update ecb.h, to no longer include <pthread.h> in case WinNT.h |
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61 | hasn't been included. |
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62 | |
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63 | 6.02 Wed Jul 13 04:35:19 CEST 2011 |
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64 | - "improve portability to Gentoo" - gentoo manages to put perl variables |
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65 | in memory areas that are farther than 2gb apart, which the jit couldn't |
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66 | handle and barfed. now it's just a bit slower on gentoo and similar |
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67 | systems. |
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68 | |
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69 | 6.01 Sun Jul 3 12:31:14 CEST 2011 |
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70 | - workarounds are good, but the test for whether pthreads are used |
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71 | was not good. thisone should be better. |
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72 | - check differently whether gcc generates cfi instructions itself. |
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73 | |
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74 | 6.0 Wed Jun 29 19:43:35 CEST 2011 |
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75 | - INCOMPATIBLE CHANGE: unreferenced coro objects will now be |
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76 | destroyed and cleaned up automatically (e.g. async { schedule }). |
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77 | - implement a JIT compiler for part of the thread switch code, |
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78 | which gives a 50% speed improvement on threaded perls, and |
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79 | about 4% on non-thraeded perls (so threaded perls now finally |
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80 | reach about half the speed of non-threaded perls). |
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81 | - slightly modernise Coro::Intro, add section about rouse functions. |
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82 | - avoid DEFSV and ERRSV, giving another 10% improvement |
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83 | in thread switching. |
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84 | - Coro::State->is_destroyed is now called is_zombie. |
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85 | - implement a Coro->safe_cancel method that might fail, but |
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86 | cancels in a "safer" way if it succeeds. |
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87 | - add preliminary support for DEBUGGING perls. |
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88 | - get rid of two hash-accesses when initialising a new Coro - this |
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89 | speeds up coro creation by almost a factor of two. |
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90 | - croak when a coro that is being cancelled tries to block |
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91 | (e.g. while executing a guard block), instead of crashing or |
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92 | deadlocking. |
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93 | - use a more robust and also faster method to identify Coro::State |
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94 | objects - speeds up everything a bit. |
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95 | - implement Coro->cancel in XS for a 20% speed improvement, and to |
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96 | be able to implement mutual cancellation. |
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97 | - speed up context switches by a percent or two by more efficiently |
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98 | allocating context stack entries. |
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99 | - implement Coro->join and Coro->on_destroy in XS for a speedup and |
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100 | a reduction in memory use. |
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101 | - cancelling a coro while it itself is cancelling another coro is |
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102 | now supported and working, instead of triggering an assertion. |
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103 | - be a bit more crash-resistant when calling (buggy) on_destroy |
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104 | callbacks (best effort). |
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105 | - move on_destroy into the slf_frame, to allow extension slf |
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106 | functions to have destructors. |
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107 | - get rid if coro refcounting - simply crash in other interpreter |
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108 | threads by nulling the pointers on clone. |
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109 | - simplify warn/die hook handling when loading Coro - the convoluted |
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110 | logic seems to be no longer neccessary. |
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111 | - use libecb instead of our own home-grown gcc hacks. |
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112 | - document alternatives to Coro::LWP. Please use them :) |
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113 | - work around another mindless idiotic NEEDLESS bug in openbsd/mirbsds |
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114 | sigaltstack. Really. wine suffers from it, erlang suffers from it, |
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115 | and it's known since at least 2006. |
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116 | |
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117 | 5.372 Wed Feb 23 06:14:30 CET 2011 |
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118 | - apparently mingw doesn't provide a working gettimeofday, try to |
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119 | work around that by relying on Time::HiRes (indirectly brought to |
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120 | my attention by Max Maischein). |
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121 | - fix some portability issues when Time::HiRes was used. |
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122 | |
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123 | 5.371 Mon Feb 21 14:36:08 CET 2011 |
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124 | - backport to windows process emulation code again. |
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125 | |
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126 | 5.37 Sat Feb 19 07:49:44 CET 2011 |
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127 | - add a big "Coro thread life cycle" section to "man Coro". |
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128 | - try a tentative workaround against the breakage that 5.13 has |
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129 | introduced without depreciation period. sigh. |
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130 | - no longer use Time::HiRes if gettimeofday is available, which |
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131 | saves quite a lot of memory. |
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132 | |
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133 | 5.36 Sun Feb 13 05:33:41 CET 2011 |
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134 | - automatically load Coro::Channel, Coro::RWLock, Coro::Semaphore, |
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135 | Coro::SemaphoreSet, Coro::Signal and Coro::Specific on first "new" |
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136 | method call. |
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137 | - undocument Coro::Timer::sleep and obsolete whole module. |
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138 | - optimise Coro::Timer::timeout memory and cpu usage. |
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139 | - slightly updated Coro::Intro for recent changes. |
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140 | - do not initialise PL_dirty anymore. |
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141 | |
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142 | 5.25 Thu Nov 11 01:08:39 CET 2010 |
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143 | - try a different approach on netbsd - netbsd 5 finally has marginally |
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144 | working pthreads, but still broken ucontext/sigaltstack. |
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145 | - openbsd 4.8 finally got their act together, Coro works out of the box |
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146 | with asm, setjmp and pthreads (no change, just informational). |
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147 | |
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148 | 5.24 Sat Oct 23 11:27:12 CEST 2010 |
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149 | - port to the EV 4.0 API. |
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150 | - work around bugs in mingw32, making strawberry perl work |
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151 | out of the box. |
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152 | - correctly modify Coro::AIO function prototypes |
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153 | so that they reflect the "no optional parameters" rule. |
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154 | - "ported" libcoro to C++. |
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155 | |
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156 | 5.23 Mon May 17 18:50:42 CEST 2010 |
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157 | - be more resistant to ordering changes when initialising |
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158 | Coro::AnyEvent, Coro::EV and Coro::Event (reported by Matthias |
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159 | Waldorf). |
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160 | - document that perl 5.12 deliberately removed support for cloning. |
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161 | |
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162 | 5.22 Wed Apr 14 03:55:35 CEST 2010 |
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163 | - correctly return udnef on errors in Coro::Handle::read/write |
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164 | (testcase by Marc Mims). |
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165 | - convert Coro::Util into a "perl compatibility wrapper" - the functions |
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166 | are less useful now, but are drop-in replacements for existing |
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167 | functions, listing better alternatives in the documentation. This also |
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168 | fixes a bug in Coro::LWP which naively substituted Socket::inet_aton |
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169 | with Coro::Util::inet_aton. |
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170 | - do not override $Coro::idle unconditionally in Coro.pm, as other |
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171 | modules could have provided their own idle coro already |
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172 | (for exmaple, Coro::AnyEvent). |
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173 | - fix Coro::Util::gethost* functions. |
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174 | - Coro::Timer corretcly exports it's symbols (reported by Hideki Yamamura). |
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175 | |
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176 | 5.21 Wed Dec 16 07:19:51 CET 2009 |
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177 | - automatically load Coro::AnyEvent when AnyEvent and Coro are used |
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178 | together. |
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179 | - add some examples on how to combine other event loops with Coro in |
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180 | Coro::AnyEvent, and how to run it (and not to block). Seems to be |
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181 | the most common source of confusion. |
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182 | - try to catch people naively blocking in an event callback. |
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183 | - work around the perl filehandle bug issue in conjunction with |
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184 | older common::sense (as indirectly pointed out by ZSystem). |
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185 | - clarify the "not from signal handlers" section. |
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186 | |
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187 | 5.2 Sun Oct 4 14:54:24 CEST 2009 |
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188 | - Coro::Storable destroyed the prototypes of the functions it wrapped. |
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189 | - export rouse_cb and rouse_wait by default now. |
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190 | - fix various prototype mismatches in Coro::AnyEvent and Coro::Handle. |
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191 | - new method $state->swap_sv. |
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192 | - added section on "windows process emulation" to the manpage, |
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193 | after a not-so-fruitful (nor-friendly) "discussion" with chip |
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194 | salzenberg (discussion implies arguments, but his only arguments |
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195 | were ad-hominems, one wonders why he started it in the first |
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196 | place). I hope this explains it well enough for him to understand, |
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197 | and maybe well enough for others to understand. |
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198 | - use common::sense everywhere now. |
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199 | - idle callbacks are no longer supported, use idle coros instead. |
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200 | - print a thread listing when a deadlock is detected. |
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201 | |
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202 | 5.17 Sat Aug 22 23:09:31 CEST 2009 |
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203 | - work around a bug in the perl debugger causing crashes |
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204 | when running under the debugger by marking _pool_handler as nodebug. |
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205 | - speed up Coro::async considerably. |
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206 | - try some hacks to get netbsd to work "more often" - their broken |
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207 | setjmp/longjmp, ucontext *and* phtreads are really hard on Coro. |
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208 | - convert Coro to AE 5.0 API. |
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209 | |
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210 | 5.162 Tue Jul 28 04:04:03 CEST 2009 |
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211 | - perl 5.8.2 is now minimum requirement. |
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212 | - skip t/19_handle.t on broken windows perls. |
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213 | |
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214 | 5.161 Wed Jul 22 04:47:38 CEST 2009 |
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215 | - Coro::AnyEvent::poll could have a different prototype when EV was |
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216 | used as backend (analyzed by Tatsuhiko Miyagawa). |
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217 | - Coro::AnyEvent errornously initialised the event loop when loaded, |
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218 | not on demand. |
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219 | - try to workaround rare */t/01_unblock.t failures. |
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220 | |
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221 | 5.16 Tue Jul 21 01:44:37 CEST 2009 |
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222 | - Coro::AnyEvent failed to hook into the event loop |
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223 | when no threads had been readied between detecting |
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224 | the event loop and actually running it. |
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225 | - considerably speed up Coro::Select by taking avdantage |
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226 | of AnyEvent > 4.8 and some other optimisations. |
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227 | - implement paragraph readline mode in Coro::Handle |
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228 | (based on patches by Zsbán Ambrus). |
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229 | - replace WSAEINPROGRESS by WSAEWOULDBLOCK (reported |
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230 | and analyzed by Yasuhiro MATSUMOTO). |
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231 | - clarified libcoro license and copyright. |
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232 | - someone stole my EXTRA_META!!! |
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233 | - implement Coro::Select::patch_pp_sselect and it's brother, |
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234 | for hardcode select overriding. |
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235 | |
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236 | 5.151 Mon Jul 6 05:41:57 CEST 2009 |
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237 | - backport to windows process emulation code again (patch by |
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238 | Yasuhiro MATSUMOTO). |
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239 | - slightly update Coro::MakeMaker. |
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240 | |
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241 | 5.15 Tue Jun 30 10:28:06 CEST 2009 |
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242 | - deprecate Coro::Socket, document how to get ipv6 support via |
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243 | AnyEvent::Socket instead. |
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244 | - implement signal->wait ($cb) interface, similar to semaphores. |
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245 | - work around SvOK not supporting getmagic, so we have to getmagic |
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246 | to test for undef :/ (reported by Matthias Waldorf). |
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247 | - load Coro::AnyEvent in all modules using AnyEvent. |
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248 | - work around perl corrupting our internal data structures, |
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249 | reported by Tokuhiro Matsuno. |
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250 | - enable per-coroutine real and cpu time gathering |
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251 | (Coro::State::enable_times). |
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252 | |
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253 | 5.14 Wed Jun 24 01:37:48 CEST 2009 |
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254 | - provide explicit functions to "cede" to the event loop in Coro::AnyEvent, |
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255 | as this seems to have been a difficult concept (poll, sleep, idle, |
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256 | idle_upto). |
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257 | - add Coro::AnyEvent::readable/writable functions. |
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258 | - clarify Coro::EV/Event/AnyEvent manpages. |
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259 | - free per-thread global scalars in the thread calling ->cancel, to |
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260 | avoid crashes when $_, $@ etc., are magical but some of those |
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261 | had already been freed. |
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262 | - "unexperimentalise" the callback interface for Coro::Semaphore. |
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263 | - speed up ready queue management/context switching by using a linked |
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264 | list instead of an array (~5-10%). |
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265 | - implement "watch" command in Coro::Debug shells. |
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266 | - for fun, implement time-slicing as an example in the manpage. |
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267 | - if AnyEvent detects EV or Event, but we don't have Coro::EV or |
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268 | Coro::Event, use the normal AnyEvent handling instead of dieing |
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269 | (the same is true for Coro::Handle). |
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270 | - properly document Coro::EV::timed_io_once. |
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271 | - avoid unneccessary ->cancel calls in Coro::Handle. |
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272 | - maybe make it work on mingw32 with win32 backend |
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273 | (based on patch by Yasuhiro Matsumoto). |
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274 | |
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275 | 5.132 Fri May 29 09:00:39 CEST 2009 |
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276 | - do not keep a reference to the argument itself in |
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277 | Coro::Semaphore::guard, as it could change later. |
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278 | - support SO_RCVBUF/SO_SNDBUF nonstandard Coro::Socket options, |
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279 | should support a prepare callback. |
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280 | |
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281 | 5.131 Mon Mar 16 23:20:37 CET 2009 |
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282 | - implement and document Coro->suspend, Coro->resume. |
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283 | - fix Coro::Select implementation to not (often) close |
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284 | the passed file descriptors (testcase provided by pippijn). |
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285 | |
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286 | 5.13 Mon Dec 15 21:51:42 CET 2008 |
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287 | - EXPERIMENTAL: implement dynamic winds (on_enter/on_leave). |
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288 | - don't set diehook to C<undef> but instead to NULL, to avoid |
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289 | spurious warnings. |
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290 | - fix a lot of bugs in Coro::SemaphoreSet. |
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291 | - Coro::SemaphoreSet will less often create a semaphore needlessly. |
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292 | - add Coro::SemaphoreSet::count and wait methods. |
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293 | - take advantage of the new Guard module. |
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294 | - deprecate Coro::guard. |
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295 | - try to fix the dreaded 01_unblock tests once more. I hate it when |
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296 | testsuites need more fixing than the code they are supposed to test. |
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297 | - croak in more cases when a required callback isn't resolvable. |
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298 | - fix some minor issues in Coro::State->call/eval. |
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299 | - use current coroutine context instead of a temporary one |
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300 | when temporarily switching to another coroutine. |
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301 | - do not call C-level on_destroy handlers during global destruction, |
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302 | to avoid needless segfaults. |
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303 | |
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304 | 5.12 Sun Dec 7 13:30:38 CET 2008 |
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305 | - add default config for MirOS, which seems to be a bug-to-bug |
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306 | compatible fork of openbsd ("world domination by releasing |
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307 | openbsd cvs before the openbsd folks do it" or so :). |
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308 | - free_padlist did destroy the names pad, not good, but didn't |
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309 | seem to bother perl - this could fix issues such as eval "" |
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310 | inside a function called from multiple coroutines. |
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311 | - use a different method to detect destruction time. |
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312 | - be more careful when freeing padlists just before global |
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313 | destruction. |
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314 | - fixed and expanded the call/cc example. |
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315 | - renamed _terminate to _coro_run. |
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316 | - new method Coro::Channel->shutdown. |
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317 | - try pthreads on openbsd <4.4 (broken sigaltstack, will |
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318 | pthreads fare better?). |
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319 | - be less picky about destroying "a" running coroutine. |
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320 | |
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321 | 5.11 Tue Nov 25 21:49:05 CET 2008 |
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322 | - DEBUGGING in 5.10.0 is a mess: it constantly flags perfectly |
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323 | working code with failed assertions, introducing more bugs than |
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324 | it fixes, requiring elaborate workarounds :( |
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325 | |
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326 | 5.1 Mon Nov 24 08:54:59 CET 2008 |
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327 | - wrote a small introductory tutorial - Coro::Intro. |
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328 | - convert Coro::Timer, Coro::Select and Coro::Util to rouse API. |
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329 | - Coro::Select did errornously dup the file descriptors |
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330 | and didn't work with all AnyEvent backends. |
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331 | - Coro::Select wasn't imported correctly form Coro::LWP, causing blocking |
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332 | LWP data transfers. |
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333 | - disassociate c contexts from coro objects - this is agruably more |
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334 | correct, but mostly allows sharing of cctxs between coro and state |
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335 | objects, for added memory savings and speed increases. |
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336 | - bumped $Coro::POOL_RSS up to 32kb by default. |
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337 | - no longer set the optype to OP_CUSTOM, as B::* understandably |
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338 | doesn't like this very much (and we *are* a type of entersub). |
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339 | - implement state cloning, just to prove that call/cc can be done. |
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340 | - automatically load Coro::AnyEvent in Coro::Handle. |
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341 | - wrap ->cancel calls in eval inside Coro::Handle as EV watchers |
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342 | do not have this method (and don't need it either). |
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343 | - speed up generic anyevent methods in Coro::Handle by using rouse |
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344 | callbacks. |
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345 | - allow coroutines in $Coro::IDLE, speeding up Coro::AnyEvent and |
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346 | others. It also makes the debugger happier, as you can trace |
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347 | through the idle threads now. |
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348 | - add comppad_name* and hints ($^H, %^H) to per-thread variables. |
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349 | - eg/event was pretty broken. |
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350 | - better 5.8.6 compatibility. |
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351 | |
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352 | 5.0 Thu Nov 20 10:35:05 CET 2008 |
| 9 | - NEW ARCHITECTURE: use the latest 4.x version if you experience |
353 | - NEW ARCHITECTURE: use the latest 4.x version if you experience |
| 10 | stability issues. |
354 | stability issues. |
| 11 | - bump API version to 7 - all dependents must be recompiled. |
355 | - bump API version to 7 - all dependents must be recompiled. |
| 12 | - removed timed_* functions - they were not being used anyways |
356 | - removed timed_* functions - they were not being used anyways |
| 13 | and should be replaced by a more generic mechanism - |
357 | and should be replaced by a more generic mechanism - |
| 14 | and were annoying to support anyways :) |
358 | and were annoying to support anyways :) |
| 15 | - removed SemaphoreSet's waiter method - use sem instead. |
359 | - removed SemaphoreSet's waiter method - use sem method instead. |
| 16 | - Coro::Semaphore->adjust didn't correctly wake up enough waiters. |
360 | - Coro::Semaphore->adjust didn't correctly wake up enough waiters. |
| 17 | - async_pool did free a scalar value twice |
361 | - async_pool did free a scalar value twice |
| 18 | ("Attempt to unreference..."). |
362 | ("Attempt to unreference..."). |
| 19 | - fix a disastrous bug in the readline optimisation |
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| 20 | introduced in 4.801. |
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| 21 | - fix a longstanding bug where calling terminate on a coro that |
363 | - fix a longstanding bug where calling terminate on a coro that |
| 22 | was waiting for a semaphore that was just becoming available |
364 | was waiting for a semaphore that was just becoming available |
| 23 | would cause a deadlock (semaphore would get into a state where |
365 | would cause a deadlock (semaphore would get into a state where |
| 24 | it was available but waiters were still blocked). |
366 | it was available but waiters were still blocked). |
| 25 | - calling throw on a coroutine that is waiting for a semaphore will |
367 | - calling throw on a coroutine that is waiting for a semaphore will |
