| 1 | Revision history for Perl extension Coro. |
1 | Revision history for Perl extension Coro. |
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2 | |
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3 | TODO: should explore PerlIO::via::CoroCede and PerlIO::via::CoroAIO. |
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4 | TODO: maybe implement a default message channel, very much like Erlang'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 | |
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8 | 4.6 Sat Apr 26 10:05:14 CEST 2008 |
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9 | - INCOMPATIBLE CHANGE: sub/code attributes are no longer supported |
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10 | by the Coro module. It was a mistake to have it in the first place. |
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11 | - (experimental) support for activestate perl 5.10 (method "w"). |
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12 | - (experimental) support for strawberry perl (method "a"). |
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13 | - coro_sigelem_set did not return a value although it had to, |
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14 | actual impact unknown. |
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15 | |
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16 | 4.51 Mon Apr 14 13:28:27 CEST 2008 |
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17 | - make it compile again on 5.8. |
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18 | |
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19 | 4.50 Thu Apr 10 09:43:17 CEST 2008 |
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20 | - I did it twice! (see 4.49). |
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21 | |
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22 | 4.49 Sun Apr 6 21:23:31 CEST 2008 |
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23 | - grr, instead of compiling the recent changes on 5.10 only they |
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24 | were compiled on 5.8 only. |
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25 | |
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26 | 4.48 Sun Apr 6 20:36:46 CEST 2008 |
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27 | - allow coroutine switches during eval's under 5.10.x, as it seems |
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28 | the parser is a per-interpreter option now, so this is safe |
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29 | (this might fix the odd crashing bug). |
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30 | - drop support for 5.9.x versions: they are dead, jim. |
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31 | |
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32 | 4.47 Sun Apr 6 00:37:52 CEST 2008 |
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33 | - force cctx allocation on API calls: we know we need to force one |
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34 | and gcc actually manages to confuse our heuristic nowadays, |
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35 | leading to crashes and worse. |
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36 | - document force_cctx. |
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37 | |
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38 | 4.46 Fri Apr 4 22:05:43 CEST 2008 |
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39 | - upgrade libcoro, resulting in pthread-backend (which was only created |
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40 | to fulfill the rules of the programming languages shootout). |
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41 | |
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42 | 4.45 Thu Mar 13 11:55:36 CET 2008 |
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43 | - fix a file leaking bug in eg/mhyttpd that would allow |
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44 | downloading of any file (reported by oesi). |
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45 | - fix deadlock bug in Coro::Channel (reported by Richard Hundt) |
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46 | (also add testcase). |
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47 | - support Broadcast option in Coro::Socket (patch by Richard Hundt, |
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48 | apparently having loads of fun with that). |
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49 | - implement $state->swap_defsv, ->swap_defav and document ->throw. |
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50 | |
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51 | 4.4 Wed Feb 13 16:44:29 CET 2008 |
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52 | - only assume .cfi pseudo isns exist on GNU/Linux. |
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53 | - add get_timed method to Coro::Channels. |
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54 | - fixed Coro::Debug manpage. |
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55 | - perl 5.11 compatbility improvement based on patch by |
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56 | Andreas König. |
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57 | |
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58 | 4.37 Sun Jan 20 11:25:23 CET 2008 |
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59 | - soften the check for an active parser for perl 5.10 (avoiding |
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60 | "Coro::State::transfer called while parsing" in many cases). |
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61 | |
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62 | 4.36 Sun Jan 13 10:53:56 CET 2008 |
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63 | - reset diehook when terminating from an async_pool as to not |
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64 | trigger any __DIE__ handlers. |
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65 | |
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66 | 4.35 Sun Jan 13 04:14:13 CET 2008 |
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67 | - "bt" debug command now displays any exceptions |
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68 | from longmess and also skips the innermost |
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69 | stackframes, giving more useufl output. |
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70 | - allow backtraces in coroutines blocked in Coro::EV, |
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71 | at a <1% speed hit. |
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72 | - handle localising of $SIG{__WARN__} and __DIE__ |
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73 | properly (with a proper amount of dirty hacking). |
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74 | |
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75 | 4.34 Sat Dec 22 17:49:53 CET 2007 |
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76 | - upgrade to EV version 2.0 API. |
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77 | |
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78 | 4.33 Mon Dec 17 08:36:12 CET 2007 |
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79 | - make Coro::AIO etc. loadable in the absence of EV. |
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80 | |
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81 | 4.32 Mon Dec 17 07:46:02 CET 2007 |
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82 | - majorly improved Coro::Handle's performance with Coro::EV. |
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83 | - implemented the until now mythical Coro::BDB module. |
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84 | - specialcase EV in Coro::AIO and Coro::BDB for extra speed. |
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85 | |
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86 | 4.31 Wed Dec 5 12:32:39 CET 2007 |
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87 | - remove warn statement form Coro::Util. |
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88 | |
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89 | 4.3 Tue Dec 4 20:33:14 CET 2007 |
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90 | - calls to the idle function could cause stack corruption |
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91 | when the stack changed. |
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92 | - do no longer rely on the presence of EV::DNS if EV is used |
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93 | (because it is gone), but instead take avdantage of EV::ADNS |
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94 | if available. |
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95 | - add ($) prototypes to all functions in Coro::Storable. |
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96 | - use a conventional (safer) idle callback in Coro::EV. |
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97 | - do accept quickly in Coro::Debug to avoid endless loops. |
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98 | |
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99 | 4.22 Fri Nov 30 16:04:04 CET 2007 |
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100 | - really use optimised versions for Event and EV in Coro::Util |
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101 | and Coro::Handle. |
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102 | |
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103 | 4.21 Sun Nov 25 10:48:59 CET 2007 |
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104 | - fix a spurious memory read. |
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105 | - Coro::EV no longer keeps the eventloop "alive". |
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106 | |
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107 | 4.2 Fri Nov 9 20:47:05 CET 2007 |
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108 | - enable/disable tracing from a new coroutine, not a pooled one. |
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109 | - fix a memleak in Coro::Event. |
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110 | - removed killall call from fork_eval. |
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111 | - made sure store_fd is already loaded so that fork_eval |
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112 | does not have to parse autoload in each subprocess. |
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113 | - only use assembly method if -O switch is in $Config{optimize}. |
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114 | - add (optional) Coro::EV module, so far the best event loop module |
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115 | directly supported by Coro. |
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116 | - if the event model is EV, use EV::DNS to resolve |
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117 | stuff in Coro::Util. |
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118 | - don't get confused by multiple event notifications in Coro::Handle. |
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119 | - initial support for EV (libevent interface). |
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120 | - require Event and EV using configure_requires, to force their existance. |
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121 | |
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122 | 4.13 Wed Oct 24 07:26:45 CEST 2007 |
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123 | - add Coro::Storable::blocking_thaw. |
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124 | - use a vastly more complicated technique to localise |
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125 | $SIG{__WARN/DIE__} that also works on perls <= 5.8.8. |
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126 | - use a coroutine for the idle callback Coro::Event, |
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127 | instead of running Event in the current coroutine context. |
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128 | This also catches recursive invocations. |
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129 | - actually report fork errors in gethostbyname and inet_aton. |
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130 | |
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131 | 4.11 Thu Oct 11 02:40:24 CEST 2007 |
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132 | - port to threaded perls. |
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133 | |
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134 | 4.1 Thu Oct 11 02:38:16 CEST 2007 |
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135 | - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now |
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136 | be local to each coro (see Coro::State). |
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137 | - incompatible change: for very deep reasons, cede and cede_notself |
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138 | cannot return anything, so nothing will be returned. |
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139 | - possibly bring back 5.10 compatibility (untested). |
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140 | - work around stupid (and wrong) warning on 5.10 :(. |
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141 | - overlay the saved state over the context stack. This saves |
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142 | a few hundred bytes per coroutine on average and also |
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143 | speeds up context switching a bit. |
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144 | - further tune default stack sizes. |
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145 | - (more) correctly calculate stack usage in coro_rss. |
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146 | - Coro::Storable::blocking_* did not properly lock |
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147 | resulting in races between coroutines. |
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148 | - added Coro::Storable::guard. |
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149 | - stopping to trace a coroutine could destroy the cctx of |
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150 | an unrelated coroutine. |
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151 | - explain the relationship between Perl and C coroutines in |
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152 | more detail in Coro::State. |
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153 | - Coro::Util::inet_aton did not short-circuit dotted quad forms, |
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154 | causing a fork per resolve. This also affected Coro::Socket. |
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155 | - switch to a separate stack in $coro->call/eval to avoid |
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156 | invalidating pointers. |
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157 | |
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158 | 4.03 Sat Oct 6 21:24:00 CEST 2007 |
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159 | - added Coro::throw method. |
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160 | - minor code cleanups. |
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161 | |
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162 | 4.02 Sat Oct 6 02:36:47 CEST 2007 |
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163 | - fix a very minor per-coroutine memleak (a single codereference). |
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164 | - fixed a bug where the currently in-use c context would be freed |
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165 | prematurely (can happen only when programs change the stacksize |
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166 | or use tracing). |
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167 | - tracing can no longer keep a coro alive after it terminated. |
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168 | - do static branch prediction in the common path for gcc. gives |
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169 | about 2-5% speed improvement here. |
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170 | |
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171 | 4.01 Fri Oct 5 22:10:49 CEST 2007 |
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172 | - instead of recreating *a* standard output handle we simply |
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173 | use STDOUT, which is faster and hopefully more robust. |
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174 | |
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175 | 4.0 Fri Oct 5 12:56:00 CEST 2007 |
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176 | - incompatibly changed Coro::Storable::freeze. |
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177 | - major new feature: added Coro::Debug, for interactive coroutine |
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178 | debugging, tracing and much more. |
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179 | - major bug fix: unbelievable, but true: $_, $/ and many other |
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180 | "saved" variables actually weren't being saved. This has been fixed, |
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181 | of course, while increasing performance while losing all the save |
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182 | flags. |
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183 | - save flags are gone, and all the api functions dealing with them. |
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184 | - added Coro::Semaphore::adjust. |
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185 | - added Coro::Util::fork_eval. |
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186 | - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}. |
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187 | - added Coro::killall. |
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188 | - reduce initial stack sizes to allow for "micro-coroutines". |
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189 | - better async_pool resource management, moved parts of async_pool |
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190 | handling to XS (major speed improvement). |
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191 | - actually croak before modifying important data structures. |
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192 | - refuse to transfer while compiling. |
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193 | - possibly support eval EXPR better now. |
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194 | - enable assembly per default on linux+bsd x86+amd64. |
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195 | - all internal members were renamed _something for easier subclassing. |
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196 | - many minor tweaks. |
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197 | |
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198 | 3.63 Wed May 16 14:10:06 CEST 2007 |
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199 | - implement handcoded assembly for x86/amd64 SVR ABI. |
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200 | |
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201 | 3.62 Fri Apr 27 21:36:06 CEST 2007 |
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202 | - upgrade libcoro (which might set unwind info correctly). |
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203 | - change default on linux to setjmp/longjmp. |
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204 | |
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205 | 3.61 Thu Apr 19 12:36:18 CEST 2007 |
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206 | - Coro::Storable caused an endless loop when thawing invalid |
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207 | pst's sometimes. |
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208 | - use a Semaphore in Coro::Storable, as Storable doesn't |
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209 | seem to be reentrant (although it is documented to |
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210 | be threadsafe...). |
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211 | - fix Coro::Signal to bring back the original unreliable |
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212 | but stateful semantics. |
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213 | - fixed a lot of typos in Coro.pm (patch submitted by David |
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214 | Steinbrunner, which applied flawlessly). |
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215 | |
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216 | 3.6 Sat Apr 14 17:13:31 CEST 2007 |
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217 | - added some bugfixes to get eg/myhttpd working again. |
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218 | - added Coro::Storable for often-cede'ing freeze/thaw. |
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219 | - try to do a clean exit when a coroutine calls exit |
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220 | (EXPERIMENTAL). |
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221 | - got rid of indirect call through _coro_init. |
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222 | - updated the partly antique examples in eg/ to |
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223 | work again and be a bit less magic, too. |
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224 | - fixed Coro::Signal semantics to work as documented again. |
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225 | |
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226 | 3.55 Sun Mar 25 01:20:47 CET 2007 |
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227 | - add SAVE_DEFFH to save the default filehandle and enable |
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228 | it by default. |
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229 | - finally move socket-operations from Coro::Socket to Coro::Handle |
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230 | to be able to unblock foreign sockets. |
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231 | - add Coro::State::save_also and guarded_save. |
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232 | - add count accessor to Coro::Semaphore. |
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233 | - add Coro::State::cctx_stacksize. |
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234 | - just for the fun of it, do not rely on implicit context, |
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235 | which can dramatically improve performance, but people |
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236 | using windows-process-emulation perls do not care much about |
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237 | performance. |
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238 | |
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239 | 3.51 Sun Mar 4 14:18:04 CET 2007 |
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240 | - fixed a problem when you weakened references to Coro::State's |
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241 | (patch by Yuval Kogman). |
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242 | |
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243 | 3.501 Wed Feb 28 12:44:07 CET 2007 |
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244 | - rename some global symbols as macosx from hell redefines |
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245 | them without asking. |
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246 | |
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247 | 3.5 Tue Feb 13 20:22:53 CET 2007 |
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248 | - do AnyEvent model detection earlier, avoiding problems |
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249 | caused by first using AnyEvent and later Coro::Event. |
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250 | - implement and document Coro::Event event objects. |
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251 | - fix a potential problem in Coro::Event causing crashes. |
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252 | - initialise PL_comppad when creating a new coroutine, |
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253 | avoids crashes on early coro destruction. |
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254 | |
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255 | 3.41 Mon Jan 22 19:19:49 CET 2007 |
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256 | - readline on Coro::Handle did not support undefined $/, |
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257 | nor did it deliver partial lines on EOF or error. |
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258 | - implement malloc fallback for stack allocation because |
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259 | stupid broken idiotic OSX has a stupid broken |
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260 | idiotic fits-the-whole-os mmap "implementation" and |
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261 | my dick feels longer if Coro is portable even to |
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262 | obsolete platforms. |
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263 | |
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264 | 3.4 Fri Jan 19 21:52:54 CET 2007 |
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265 | - remove t/09_timer.t, as it isn't really testing much |
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266 | but was rather flaky in practise. |
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267 | - async_pool coro would keep arguments and callback alive until |
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268 | it was reused. |
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269 | - cancellation of a coroutine could cause spurious idle calls |
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270 | in cede_notself. |
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271 | |
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272 | 3.3 Sat Jan 6 03:45:00 CET 2007 |
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273 | - implement $coro->on_destroy. |
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274 | - Coro::Event blocking semantics have been changed, |
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275 | documented and - hopefully - improved. |
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276 | - fix nice adding, not subtracting, from priority. |
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277 | - fix ->prio and api_is_ready (patch by Mark Hinds). |
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278 | - fixed an assert ("... == prev__cctx->idle_te") |
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279 | that could errronously trigger. |
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280 | - fix various large and small memleaks. |
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281 | - use a (hopefully) more stable cancel implementation |
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282 | that immediately frees the coroutine data. |
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283 | - cede/cede_notself return a status now. |
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284 | - added Coro::guard function. |
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285 | - added a global coroutine pool for jobs (on my machine, |
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286 | I can create and execute 48k simple coros/s with async, |
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287 | and 128k coros with async_pool). |
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288 | - Coro::AIO now uses the coroutine priority as io priority. |
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289 | |
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290 | 3.2 Fri Dec 22 05:07:09 CET 2006 |
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291 | - improve portability to slightly older perls. |
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292 | - use cleaner coroutine destruction. |
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293 | - simplify configuration for users. |
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294 | - optionally (unrecommended) prefer perl functions over |
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295 | their coro replacements. |
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296 | |
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297 | 3.11 Tue Dec 5 13:11:24 CET 2006 |
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298 | - fixed some bogus assert's, but as perl.h disables assert even |
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299 | without NDEBUG (thank you very much), not too many people should |
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300 | notice (that did include myself). Andreas König noticed, though :) |
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301 | - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have |
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302 | it. Also noticed by Andreas König :) |
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303 | - save/restore tainted status. |
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304 | - verified to pass the testsuite on my 5.9.5. |
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305 | |
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306 | 3.1 Mon Dec 4 23:03:40 CET 2006 |
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307 | - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow). |
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308 | - incompatible change: transfer flags are now per-state. |
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309 | - give a better error message on deadlock. |
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310 | - document Coro::nready. |
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311 | - enhanced testsuite. |
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312 | |
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313 | 3.01 Sun Dec 3 23:47:42 CET 2006 |
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314 | - forgot to include Coro::Timer. |
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315 | |
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316 | 3.0 Sun Dec 3 22:57:25 CET 2006 |
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317 | - the "FINALLY COMPLETELY STABLE" release (coming soon: |
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318 | the "FAMOUS LAST WORDS" release). |
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319 | - implement a new stack sharing algorithm, which uses a stack |
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320 | pool (size currently hardcoded). |
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321 | - make stack sharing mandatory (it no longer uses a heuristic). |
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322 | - eval/die no longer cause weird problems under heavy use. |
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323 | - Coro::Event could cause livelocks if it was used but |
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324 | no Coro::Event watchers were used. |
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325 | - Coro::Event now uses asynccheck as prepare does not |
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326 | check for changed watchers. |
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327 | - Coro::Event allows multiple waiting coros and will wake up one |
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328 | per event. |
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329 | - Coro::Event should be cleaner and more efficient now. |
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330 | - new utility function Coro::unblock_sub. |
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331 | - document the sad fact that Event is no longer reentrant. |
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332 | - putting a coroutine into the ready queue twice could under |
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333 | some circumstances lead to stack corruption. |
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334 | - minor incompatibility: subclassing Coro::State is supported |
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335 | directly now without going through a _coro_state member. |
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336 | - state/coro switching is much faster now. |
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337 | - very minor optimisations and code/documentation cleanup. |
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338 | - avoid problems due to compiler inlining. |
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339 | - removed timers from Coro::Timer -> use AnyEvent instead. |
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340 | - replaced Coro::idle coroutine by (cleaner) idle handler. |
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341 | - updated to newest libcoro. |
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342 | - implement enhanced support for valgrind. |
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343 | - implement is_ready and return value for ready. |
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344 | - removed Coro::Cont, it was a misnomer (it's generators), |
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345 | and it was somewhat annoying to get it right. Will come back |
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346 | if somebody asks for it :) |
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347 | - many ->wait methods and Coro::Event could return |
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348 | spuriously without the event having happened. |
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349 | |
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350 | 2.5 Tue Nov 7 12:22:33 CET 2006 |
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351 | - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket |
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352 | use AnyEvent, moved them to Coro/. |
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353 | - added Coro::LWP which contains all the uglyness required to |
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354 | make LWP non-blocking. |
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355 | - should work with perl 5.9.x now (Andreas König made me do it). |
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356 | - fixed another bug in Coro::Select when the timeout was undef. |
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357 | - reuse PL_start_env for all coros, saves some memory per coroutine. |
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358 | - manage PL_top_env differently, hopefully to avoid panic: top_env. |
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359 | - timeout argument was not properly used in Coro::Socket. |
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360 | - allow limited forms of subclassing in Coro::Handle/Coro::Socket. |
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361 | - emulate undocumented(!) functionality of IO::Socket required |
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362 | by LWP(!!). |
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363 | - updated eg/lwp to work with newer lwp's. |
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364 | - remove "FATAL: uncaught exception" prefix. Coroutines that die |
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365 | kill the whole process, just as exceptions in the main "coroutine" |
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366 | did already. |
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367 | |
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368 | 2.1 Wed Nov 1 23:01:13 CET 2006 |
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369 | - fix a long-standing bug in Coro::Select where select with |
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370 | zero timeout would instead change the current default filehandle. |
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371 | - use a simpler and hopefully more robust way to clone padlists |
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372 | (uses less memory and a perl function instead of our own). |
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373 | - coro can now create a stack guard area on many architectures. |
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374 | - Coro::AIO properly reexports additional functions from IO::AIO. |
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375 | - updated libcoro with a workaround for OS X, |
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376 | pach and testing by Michael Schwern. |
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377 | |
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378 | 2.0 Tue Oct 24 05:47:17 CEST 2006 |
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379 | - support additional aio requests in Coro::AIO. |
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380 | |
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381 | 1.9 (never properly released due to a glitch) |
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382 | |
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383 | 1.8 Thu Feb 2 00:59:06 CET 2006 |
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384 | - applied suggested patch by SAMV to avoid problems during stupid |
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385 | mark & sweep gc run. |
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386 | - applied patch by Scott Walters for 5.9.3 compatibility. |
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387 | |
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388 | 1.7 Tue Dec 27 01:41:58 CET 2005 |
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389 | - added Coro::AIO, a thin wrapper around IO::AIO. |
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390 | - improved Makefile.PL explanations. |
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391 | |
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392 | 1.6 Mon Dec 12 21:30:05 CET 2005 |
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393 | - additionally save PM_curpm might fix as-of-yet |
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394 | unseen problems with regex matches being attributed to the |
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395 | wrong package. |
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396 | - add t/10_bugs.t, which currently checks against imho broken |
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397 | perls that use 0.26MB of stack space per Perl_magic_get |
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398 | invocation (newer linuxes) as opposed to the 0.0002MB perl |
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399 | normally uses. |
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400 | - make stacksize configurable for the ultimate debian experience. |
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401 | |
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402 | 1.51 Mon Dec 12 18:48:36 CET 2005 |
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403 | - remove debugging warn() accidentally left in Coro::Select. |
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404 | |
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405 | 1.5 Tue Nov 29 13:32:44 CET 2005 |
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406 | - use Coro::Event inside Coro::Select to avoid spurious deadlocks. |
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407 | - fix Coro::Select 'select'. |
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408 | - strict'ify some modules. |
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409 | - libcoro errornously restored the SIGUSR2 handler to SIGUSR1. |
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410 | - use XSLoader in selected modules. |
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411 | - remove some 5.6 compatibility cruft. |
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412 | |
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413 | 1.4 Tue Sep 6 00:11:05 CEST 2005 |
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414 | - libcoro did not take into account the trampoline on amd64, |
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415 | when 'l'inux method was used. |
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416 | |
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417 | 1.31 Tue Aug 30 23:31:33 CEST 2005 |
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418 | - some portability fixes/workarounds. |
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419 | |
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420 | 1.3 Sat Aug 20 03:08:56 CEST 2005 |
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421 | - no code changes. module seems to work fine. |
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422 | - improve Coro::State docs, remove reference to nonexisting |
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423 | Coro::State::flush method. |
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424 | - no longer autodetect windows, present it as an option instead. |
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425 | |
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426 | 1.2 Mon May 16 02:00:55 CEST 2005 |
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427 | - included libcoro.c earlier in State.xs, might improve portability. |
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428 | - use a faster and possibly more stable Coro::Cont implementation. |
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429 | - accept x86_64 in addition to amd64 for optimized linux-amd64 support. |
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430 | - fix bugs Coro::SemaphoreSet that could cause locks never to be freed. |
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431 | - fix bugs in CoroAPI.h and document it in Coro::MakeMaker. |
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432 | |
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433 | 1.11 Thu Mar 3 18:00:52 CET 2005 |
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434 | - change of contact address. |
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435 | |
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436 | 1.1 Tue Feb 22 20:51:16 CET 2005 |
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437 | - support [l]inux method on amd64. |
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438 | - allow some context switches while compiling/eval'ing. |
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439 | |
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440 | 1.0 Tue Aug 10 03:47:27 CEST 2004 |
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441 | - Event 0.89 fixes the bug again. |
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442 | - fix the remaining(??) memleak. I didn't free the cache-AV for |
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443 | padlists, so one AV per created anon-sub leaked. |
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444 | |
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445 | 0.97 Fri May 14 15:23:32 CEST 2004 |
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446 | - remove stupid gcc extension that was an experiment only anyway. |
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447 | |
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448 | 0.96 Thu May 13 18:09:29 CEST 2004 |
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449 | - tell people if they have yet another broken Event variant. |
| 3 | - made Coro to work _better_ with threads (it seems that, as long |
450 | - made Coro to work _better_ with threads (it seems that, as long |
| 4 | as you use Coros in one thread only everything will work fine. |
451 | as you use Coros in one thread only everything will work fine. |
| 5 | Looking at the perl source the problem might be missing locking |
452 | Looking at the perl source the problem might be missing locking |
| 6 | between Coro and some perl internal routines. That's not easily |
453 | between Coro and some perl internal routines. That's not easily |
| 7 | fixable). |
454 | fixable). |
