| 1 | Revision history for IO::AIO |
1 | Revision history for IO::AIO |
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2 | |
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3 | TODO: better autoconf.pm that can return LIBS etc. |
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4 | TODO: aio_cptree/mvtree |
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5 | TODO: reduce condvar fairness: schedule hot-cache-threads first? |
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6 | TODO: splice/tee/vmsplice? (http://kerneltrap.org/node/6505 http://lwn.net/Articles/178199/) |
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7 | TODO: aio_fcntl, at least for file-locking |
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8 | TODO: fallocate, if it wouldn't be so useless. |
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9 | TODO: aio_mincore? |
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10 | TODO: add? also linux-specific stuff? |
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11 | TODO: O_EXEC O_SEARCH O_CLOEXEC O_DIRECTORY O_DSYNC O_NOCTTY O_NOFOLLOW O_NONBLOCK O_RSYNC O_SYNC O_TTY_INIT O_DIRECT O_LARGEFILE O_NOATIME O_ASYNC |
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12 | |
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13 | 3.7 Mon Nov 1 23:00:34 CET 2010 |
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14 | - implement/add madvise, mmap, munmap, aio_mlockall, munlockall, |
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15 | aio_mlock, munlock, msync and mtouch to @EXPORT_OK. |
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16 | - document the sad state of affairs w.r.t. pthread on many bsds. |
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17 | - do not enable mmap on systems without _POSIX_MAPPED_FILES |
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18 | (openbsd 4.8). |
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19 | - do not leak memory in IO::AIO::mmap when the scalar already |
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20 | had string-data. |
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21 | - add O_RDWR, O_APPEND and O_EXCL symbols and semi-document |
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22 | them. |
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23 | - cache the result IV, for a minor speedup in the common case. |
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24 | - croak when an mmapped-scalar changes location, to detect |
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25 | user-errors better. |
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26 | - fix aio_readlink prototype. |
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27 | |
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28 | 3.65 Wed Mar 31 02:45:05 CEST 2010 |
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29 | - actually use PATH_MAX instead of NAME_MAX for readlink, as to not |
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30 | cut off long pathnames in aio_readlink (based on patch by |
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31 | Rasmus Andersson). |
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32 | - a double fork partially killed the event pipe (great testcase |
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33 | by dormando). affects IO::AIO, BDB and Async::Interrupt. |
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34 | - suck steve's dick and rename our symbols to avoid colliding |
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35 | with nonstandard identifier spam on the broken os x pseudo-os. |
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36 | affects IO::AIO and BDB. |
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37 | |
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38 | 3.6 Mon Jan 11 00:43:39 CET 2010 |
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39 | - (libeio) more fixes for the freebsd/apple sendfile - broken by |
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40 | manpage standards, but apparently correct accoridng to actual |
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41 | kernel sources. |
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42 | - add IO::AIO::mmap/munmap support. |
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43 | - add IO::AIO::m(un)lockall support. |
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44 | - clean up manpage. |
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45 | |
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46 | 3.5 Thu Jan 7 21:25:04 CET 2010 |
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47 | - (liebio) fix freebsd sendfile (Vanilla Hsu). |
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48 | - (libeio) also fix darwin sendfile that suffered from a similar bug. |
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49 | - add aio_statvfs as interface to statvfs/fstatvfs. |
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50 | - work around buggy symlink() on cygwin in the testsuite. |
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51 | - wtf. freebsd-8.0 actually passes the testsuite! I knew |
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52 | they could implement fork and semaphores one day! cheers! |
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53 | |
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54 | 3.4 Sat Jan 2 15:13:04 CET 2010 |
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55 | - (libeio) max_poll_time was not properly converted to ticks. |
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56 | - clarify cancel_subs description. |
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57 | - IO::AIO::sendfile did not actually return the return value |
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58 | from the sendfile call. |
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59 | - implement aio_msync, aio_mtouch. |
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60 | - (libeio) tentatively support darwin in sendfile. |
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61 | |
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62 | 3.31 Thu Nov 12 02:14:29 CET 2009 |
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63 | - fix result status documentation of aio_copy, aio_move. |
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64 | - speed up object creation considerably by avoiding |
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65 | hash lookups. |
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66 | |
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67 | 3.3 Wed Aug 5 13:52:58 CEST 2009 |
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68 | - use common::sense. |
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69 | - use common schmorp.h header. |
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70 | - allow integers (file descriptors) in addition to file handles. |
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71 | - take advantage of linux' eventfd (but it seems slower on smp?). |
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72 | - use poll not select on posix platforms. |
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73 | |
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74 | 3.261 Wed Jul 1 10:11:51 CEST 2009 |
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75 | - more 0S X workarounds (patch by Tokuhiro Matsuno). |
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76 | |
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77 | 3.26 Tue Jun 30 09:33:26 CEST 2009 |
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78 | - 0S X of course claims to be posix 2008 but lacks posix_fadvise. |
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79 | try to work around this horribly broken OS in a somewhat hackish |
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80 | way. might help other os's too. |
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81 | |
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82 | 3.25 Sat Jun 27 05:18:26 CEST 2009 |
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83 | - added IO::AIO::fadvise and IO::AIO::sendfile. |
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84 | - (libeio) replaced quicksort+insertion sort by a tuned radix |
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85 | sort + insertion sort, resulting in comparable runtime (usually |
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86 | faster) to the old version, but without any ill side effects on |
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87 | degenerated (for quicksort) data. |
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88 | - (libeio) correctly sort dirs by inodes if we have perfect type |
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89 | knowledge and DIRS_FIRST is used. |
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90 | - (libeio) internally the wrong DT_* constants were used, but no |
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91 | known system has differing EIO_DT_*/DT_* values, so not an issue. |
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92 | - removed a (harmless) assert that was left over on the code |
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93 | but should not have been. |
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94 | - use more correct types (change IO length from IV to VAL64, |
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95 | which makes a difference on systems without 64 bit perls). |
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96 | |
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97 | 3.23 Sat Jun 13 16:57:58 CEST 2009 |
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98 | - fix off-by-one bug in aio_readdir that was introduced in the |
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99 | rushed 3.22 release. |
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100 | |
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101 | 3.22 Sat Jun 13 15:32:40 CEST 2009 |
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102 | - speed up readdirx sort algorithm slightly. |
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103 | - bin/treescan was missing from distro tarball. |
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104 | |
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105 | 3.21 Fri Jun 12 18:45:53 CEST 2009 |
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106 | - new options --dirs and --files for treescan. |
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107 | - install bin/treescan by default. |
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108 | - (libeio) aio_readdir can now be cancelled while executing. |
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109 | - fix a printf format string for 64 bit systems (could lead |
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110 | to problems on big endian 64 bit systems). |
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111 | - do not use qsort() but our own algorithm: glibc initialises |
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112 | the whole locale and I/O subsystem inside qsort, causing |
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113 | a stack overflow on 32 bit machines. The new sort uses much less |
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114 | stack and is more than twice as fast in typical situations. |
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115 | |
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116 | 3.2 Sun Jun 7 20:30:05 CEST 2009 |
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117 | - (libeio) pwrite emulation was even more flawed than intended and did |
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118 | not restore the file offset. |
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119 | - add aio_readdirx, which can return inode and filetype and sort |
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120 | the names in various ways. |
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121 | - unfortunately, utime, chmod, chown on an open file that has just |
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122 | been written can easily block, which caused aio_copy to block the |
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123 | process. no more! |
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124 | - no longer rely on dst path in aio_copy when futime is available. |
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125 | |
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126 | 3.19 Tue Apr 21 22:05:21 CEST 2009 |
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127 | - more perl 5.10 workarounds for aio_read and write. |
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128 | - aio_write no longer modifies the sv (if possible). |
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129 | - aio_read now works correctly with magic values. |
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130 | |
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131 | 3.18 Sun Apr 19 21:17:32 CEST 2009 |
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132 | - better diagnostics when some aio_* functions get passed an illegal fh. |
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133 | - try to avoid crashes due to incompatible 5.10 API changes. grmbl. |
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134 | |
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135 | 3.17 Thu Nov 20 08:45:36 CET 2008 |
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136 | - (libeio) added aio_sync_file_range (untested). |
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137 | - add aio_busy to @IO::AIO::AIO_REQ. |
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138 | |
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139 | 3.16 Wed Oct 22 18:28:01 CEST 2008 |
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140 | - use SvREFCNT_inc instead of SvREFCNT_inc_NN in a non-speed critical |
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141 | part to improve portability to perl 5.8 (reported by szymon). |
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142 | |
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143 | 3.15 Mon Oct 13 00:39:55 CEST 2008 |
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144 | - automatic removal of feeders was broken. |
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145 | - (libeio) use a more robust method to detect whether a feeder |
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146 | has added something to the group or not. |
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147 | |
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148 | 3.1 Thu Oct 2 13:34:40 CEST 2008 |
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149 | - pre-deref the passed callback object, for increased speed |
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150 | and decreased memory usage. |
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151 | - call on_next_submit callback even for aio_group - impact unknown, |
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152 | but seems more correct. |
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153 | - $req->cb now returns the original callback. |
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154 | - (libeio) pass EIO_GROUP/aio_group requests through the queue without |
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155 | requiring a thread switch. |
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156 | - (libeio) status code of aio_futime and aio_utime was always passed 0. |
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157 | - do some other ยต-optimisations. |
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158 | |
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159 | 3.07 Sat Aug 2 16:06:13 CEST 2008 |
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160 | - do not include LIBS in autoconf tests. |
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161 | |
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162 | 3.06 Tue Jul 15 12:41:32 CEST 2008 |
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163 | - move preadwritelock definition before it's first reference, |
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164 | to make it compile again on broken platforms (they still exist) |
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165 | or badly cofngiured perls (redhat...), reported by Rob Bloodgood. |
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166 | |
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167 | 3.05 Thu Jun 19 23:23:52 CEST 2008 |
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168 | - work around perl overriding readdir etc. with thread-unsafe |
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169 | (sic!) versions. |
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170 | |
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171 | 3.04 Wed Jun 18 01:35:38 CEST 2008 |
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172 | - (libeio) fix eio_mknod, which confused it's arguments. |
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173 | - (libeio) do not use readdir_r, as Ulrich Drepper pointed out that this |
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174 | is stupid. |
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175 | - (libeio) fix eio__readahead prototype, patch by Jost Krieger. |
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176 | - (libeio) fix a bug that could potentially cause IO::AIO |
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177 | not to get initialised properly. |
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178 | |
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179 | 3.03 Thu May 29 05:33:30 CEST 2008 |
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180 | - (libeio) correctly call pthread_attr_destroy (). |
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181 | - (libeio) work around broken bsd headers once more. |
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182 | - reduce shared library size again by not including wrappers. |
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183 | - max_outstanding could cause poll to enter a busy-waiting loop. |
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184 | - document the new IO::AIO::poll_cb result value. |
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185 | |
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186 | 3.02 Mon May 12 02:32:02 CEST 2008 |
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187 | - fix a memory leak on aio_readlink. |
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188 | - bring back working fchmod. |
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189 | - nop and busy now set result to 0. |
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190 | - set errno to ENOMEM when allocation fails. |
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191 | |
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192 | 3.01 Sun May 11 03:07:03 CEST 2008 |
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193 | - (libeio) make it compile on systems without readahead or readdir_r. |
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194 | - (libeio) improve configure check for readahead availability. |
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195 | - do not try to link against -lrt. |
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196 | - use a separate configure script for IO::AIO (not the libeio one). |
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197 | |
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198 | 3.0 Sun May 11 00:57:14 CEST 2008 |
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199 | - added bin/treescan to the distribution. |
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200 | - switched to using libeio. |
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201 | - LOTS OF INCOMPATIBLE CHANGES: |
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202 | - remove signal functionality, it is not worth the effort. |
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203 | - max_outstanding no longer returns the previous number of requests. |
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204 | - poll_cb no longer returns number of requests. |
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205 | |
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206 | 2.62 Sat Apr 26 13:59:33 CEST 2008 |
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207 | - port to solaris perls configured for old posix |
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208 | (analysed by Jost Krieger). |
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209 | - keep a reference to the perl filehandle object in aio_close, |
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210 | so it doesn't get closed prematurely, leading to ugly races. |
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211 | |
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212 | 2.61 Wed Apr 16 18:45:02 CEST 2008 |
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213 | - fix treescan output duplication and improve output ordering. |
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214 | also display files given on the commandline. |
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215 | - use a different algorithm for aio_close that is faster |
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216 | and probably has even lower chances of blocking. |
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217 | - do our own stack memory management for threads - linux |
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218 | allocates outrageous amounts of VM (not so bad unless you |
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219 | use mlockall...), which severely limits the number of threads |
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220 | on 32-bit arches: stack size is the larger of PTHREAD_STACK_MIN |
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221 | and 4096 * sizeof (long) (usually this is 16..64k). |
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222 | |
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223 | 2.6 Sun Mar 30 08:28:11 CEST 2008 |
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224 | - added aio_sync. |
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225 | - added aio_pathsync. |
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226 | - fix prototypes of (void) functions. |
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227 | |
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228 | 2.51 Sat Oct 6 16:04:54 CEST 2007 |
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229 | - perlio isn't generally threadsafe, so aio_close could not work reliably. |
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230 | aio_close now tries a safe hack that might not be that asynchronous |
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231 | (see the manpage for details). |
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232 | - discard callback return values as to not grow the stack endlessly |
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233 | when poll_cb handles many requests without returning. |
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234 | - minor code cleanups. |
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235 | |
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236 | 2.5 Thu Oct 4 14:49:08 CEST 2007 |
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237 | - replaced _fd2fh with faster xs code. |
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238 | - aio_close will now try to do "the right thing" and thus might |
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239 | work sensibly for the very first time. |
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240 | |
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241 | 2.41 Mon Sep 24 21:28:21 CEST 2007 |
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242 | - after fork, invest some work to make sure that the poll_fileno |
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243 | stays stable (by dup2'ing the new fd over the old one), to make |
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244 | it easier for programs/libs that don't control their forking |
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245 | behaviour and cannot recreate their watchers. |
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246 | |
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247 | 2.4 Sun Aug 5 18:44:22 CEST 2007 |
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248 | - add aio_truncate, aio_chmod, aio_chown, aio_utime (linux |
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249 | successfully demonstrated that you can block on futimes...). |
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250 | - allow undef as fileoffset for aio_read/write and use read/write(2) |
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251 | internally (useful for sockets or O_APPEND handles). |
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252 | - allow undef for length in aio_write. |
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253 | - negative dataoffsets work as expected now in aio_read/aio_write. |
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254 | - use NV instead of UV for 32 bit perls and file offsets, as NVs |
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255 | have a larger range then. |
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256 | - shared code between BDB and IO::AIO. |
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257 | - aio_busy was completely broken. now fixed. |
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258 | - readahead emulation now returns something. |
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259 | - correctly set errno to ENOSYS on unimplemented functions |
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260 | (should never happen, though). |
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261 | - large changes to make it partially compile and run on win32, |
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262 | but win32 lacks too much functionality, and perl overrides way |
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263 | too many functions with crashing versions. |
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264 | |
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265 | 2.33 Tue Jan 23 23:55:41 CET 2007 |
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266 | - fix install path (Andreas J. Koenig). |
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267 | |
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268 | 2.32 Mon Jan 22 16:56:23 CET 2007 |
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269 | - added aio_rmtree. |
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270 | - wow, aio_mkdir was missing. |
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271 | - aio_load did return undef on error, not -1. |
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272 | - use prefixexp not prefix in autoconf.pm |
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273 | (suggested by ... rt.cpan.org unreachable). |
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274 | - avoid installing autoconf.pm. |
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275 | |
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276 | 2.31 Sat Jan 6 03:46:02 CET 2007 |
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277 | - added aio_load. |
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278 | |
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279 | 2.3 Sat Dec 23 05:48:07 CET 2006 |
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280 | - fix off-by-one bug in aio_read, causing memory corruption |
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281 | or crashes. |
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282 | |
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283 | 2.21 Fri Dec 22 05:03:38 CET 2006 |
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284 | - minor doc updates. |
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285 | - minor cleanups. |
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286 | - IO::AIO::poll returns request count. |
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287 | - undocumented and unfinished async-signal-reporting. |
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288 | |
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289 | 2.2 Tue Oct 31 00:31:00 CET 2006 |
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290 | - minor doc updates. |
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291 | - added aio_readlink. |
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292 | - properly zero-terminate aio_read buffer. |
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293 | - fix aio_read/write with nonzero dataoffset. |
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294 | - reduced size of aio request structure. |
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295 | - better diagnostics when pathnames etc. are not byte-encoded; |
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296 | do not leak request in that case, either. |
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297 | |
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298 | 2.1 Sun Oct 29 02:01:57 CET 2006 |
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299 | - INCOMPATIBLE CHANGE: replace IO::AIO::poll_some by |
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300 | IO::AIO::max_poll_reqs and IO::AIO::max_poll_time. |
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301 | - fix a bug in aio_move where it would fail everytime |
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302 | it would have to copy files manually. |
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303 | - doc updates. |
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304 | - start threads only on (very low) demand. |
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305 | - end superfluous threads automatically after 10s idling. |
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306 | - add IO::AIO::max_idle to control this. |
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307 | - some tuning applied to random places. |
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308 | - add aio_mknod. |
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309 | |
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310 | 2.0 Thu Oct 26 18:27:58 CEST 2006 |
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311 | - minor incompatibility: max_outstanding semantics have changed. |
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312 | - major rewrite, consider all functionality EXPERIMENTAL. |
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313 | - aio requests can be cancelled. |
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314 | - callbacks can be (re-)set later. |
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315 | - aio requests can choose between 9 priorities. |
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316 | - add aio_group: aio requests can be grouped |
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317 | into composite requests. |
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318 | - generator interface for groups. |
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319 | - add IO::AIO::poll_some. |
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320 | - major documentation improvements. |
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321 | - very minor bugfixes. |
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322 | - add aio_nop for dummy requests. |
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323 | - add aio_busy mainly for benchmarking and debugging. |
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324 | - use "fast" mutexes on linux. |
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325 | - use dynamic (and larger) buffers instead of |
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326 | putting them onto the stack. |
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327 | - optimise x86 and amd64 a bit. |
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328 | - better error checking when ENOMEM. |
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329 | - hopefully fix mem and dirp leaks on fork. |
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330 | - warn about broken perl malloc. |
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331 | - compiles on cygwin (but pread is broken on cygwin |
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332 | which is not detected by autoconf, so you have to |
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333 | edit autoconf/config.h yourself to enable emulation). |
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334 | |
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335 | 1.8 Sat Jun 24 22:20:44 CEST 2006 |
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336 | - add and/or document aio_rename, aio_link, aio_symlink and aio_move. |
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337 | |
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338 | 1.73 Wed Mar 1 22:49:32 CET 2006 |
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339 | - codename "jost" |
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340 | - AIX/Solaris(?) aren't being helpful again, hardcode a value |
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341 | for NAME_MAX and drive with your eyes closed (reported by |
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342 | wcooley@nakedape.cc). |
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343 | |
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344 | 1.72 Thu Feb 2 00:40:44 CET 2006 |
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345 | - another minor bug in aio_scandir, again, the callback was called |
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346 | twice when the directory can't be stat'ed. |
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347 | |
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348 | 1.71 Mon Dec 26 20:20:03 CET 2005 |
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349 | - grr, another minor bug in aio_scandir, this time resulting |
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350 | in a runtime error. |
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351 | |
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352 | 1.7 Mon Dec 26 19:29:48 CET 2005 |
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353 | - aio_scandir errornously called callback twice in some cases. |
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354 | - added AnyEvent example. |
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355 | |
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356 | 1.61 Wed Sep 7 19:40:42 CEST 2005 |
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357 | - no longer include $Config{libs}, as distros include too much |
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358 | garbage in there that is not installed on typical systems |
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359 | (for example, debian links perl against -lgdbm and many more |
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360 | libraries despite perl not needing it, slowing down startup and |
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361 | wasting memory). |
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362 | |
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363 | 1.6 Tue Aug 30 17:44:44 CEST 2005 |
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364 | - added aio_readdir, aio_scandir. |
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365 | - added aio_sendfile, including sendfile emulation when sendfile |
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366 | isn't available. Linux, FreeBSD and HP-UX might work (sendfilev |
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367 | support is unavailable on my solaris 8 machine, but preliminary |
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368 | code is there. What's lacking is configury stuff and testing...). |
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369 | |
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370 | 1.5 Sat Aug 20 02:32:19 CEST 2005 |
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371 | - create the aio threads on demand only (good after forking). |
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372 | - somebody nagged about C89 compatibility, so this release should |
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373 | be C89 compatible, but no guarantees for future ones. |
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374 | - abort when the configure script fails. |
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375 | |
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376 | 1.4 Wed Aug 17 08:07:27 CEST 2005 |
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377 | - forgot to recreate the pipe after forking, this could cause |
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378 | deadlocks. |
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379 | |
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380 | 1.3 Wed Aug 17 07:25:54 CEST 2005 |
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381 | - properly propagate exceptions from callbacks, instead of silently |
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382 | eating them. |
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383 | - use a different fork algorithm that avoids recursive callback |
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384 | invocations and reduces fork latency in busy processes. |
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385 | - fix a bug where the buffer scalar in aio_read got assigned the wrong |
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386 | length after reading. |
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387 | - fix a bug where the child would process some outstanding requests |
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388 | from the parent. |
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389 | - make a copy of the callback scalar, to avoid some very uncommon |
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390 | (but valid) usages where the callback scalar changes. |
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391 | - the callback was never freed in aio_read/aio_write. |
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392 | - aio_read/aio_write will now set the readonly flag on the data |
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393 | scalar for better error reporting. |
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394 | |
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395 | 1.2 Wed Aug 17 01:22:58 CEST 2005 |
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396 | - verified on cygwin, linux/amd64+ia32+alpha, solaris. |
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397 | - use SvPVbyte for filenames now. You *need* to encode your strings to |
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398 | the external filename encoding first. |
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399 | - fix the bug where filehandles could leak (again). |
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400 | - clarify freebsd situation: make it work and tell me how, or go away |
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401 | with your underdocumented, broken and outdated OS. |
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402 | - fork'ing should now be officially supported (where linux and |
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403 | posix contradict each other, I followed posix). |
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404 | - only call read() once per poll, not twice (speedup). |
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405 | - new functions: aio_rmdir, aio_symlink. |
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406 | - force callback arguments to be undef or a reference, for better |
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407 | error catching. |
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408 | |
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409 | 1.1 Sun Aug 7 05:27:23 CEST 2005 |
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410 | - added configure script to detect availability of some calls. |
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411 | (imperfect, as we cannot detect things like -lrt due to missing |
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412 | feedback yet). |
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413 | - emulate fdatasync via fsync, pread/pwrite via unsafe read/write |
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414 | and readahead via manual reading on platforms lacking those. |
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415 | - ported t/03_errors.t+framework by Brad Fitzpatrick |
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416 | from Linux::AIO. |
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417 | - removed XOPEN_SOURCE because stupid solaris 9 doesn't |
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418 | compile with it enabled. Probably breaks others. Oh well. |
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419 | - try to be more careful with errno on non-threaded perls. |
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420 | - cygwins perl insisted on a matching open mode when morphing |
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421 | the fd to an fh. |
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422 | - convert sv's to "byte" encoding in aio_read/aio_write. Might |
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423 | do that for pathnames, too, in the future, so make sure you |
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424 | properly encode your pathnames. |
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425 | |
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426 | 1.0 Fri Jul 22 10:43:30 CEST 2005 |
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427 | - aio_open did not reliably deliver (open) filehandles. |
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428 | - all aio_*-functions keep a reference to the filehandle so |
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429 | it doesn't go away while the aio requests is working on it. |
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430 | - disable warnings in AIO.pm. |
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431 | |
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432 | 0.9 Wed Jul 20 23:55:04 CEST 2005 |
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433 | - allow recursive calls to poll_cb, use less locking calls, too. |
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434 | - fix the Gtk2-example in the SYNOPSIS. |
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435 | - use pread/pwrite not pread64/pwrite64. this was simply a leftover |
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436 | from Linux::AIO. |
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437 | (found by compiling on cygwin. Unfortunately, cygwin declares but |
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438 | does not implement pread/pwrite). |
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439 | - only include <sys/syscall.h> on linux. |
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440 | |
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441 | 0.5 Tue Jul 12 13:03:09 CEST 2005 |
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442 | - removed #include <endian.h>, it's not portable, and we don't |
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443 | need it anyway. |
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444 | - link against -lrt, as it might contain goodies such as fdatasync, |
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445 | and often aio_read, which we do not use yet, but it shouldn't hurt. |
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446 | |
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447 | 0.4 Mon Jul 11 05:28:25 CEST 2005 |
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448 | - added IO::AIO::flush, IO::AIO::poll. |
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449 | - make callback argument optional for all calls. |
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450 | |
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451 | 0.3 Mon Jul 11 01:42:37 CEST 2005 |
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452 | - restructured manpage. |
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453 | - added SYNOPSIS with examples for Event, Glib, Tk. |
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454 | - remove explicit context support so I don't have to maintain |
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455 | it for threaded perls (i.e. it should work now :). |
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456 | |
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457 | 0.2 Sun Jul 10 22:57:12 CEST 2005 |
| 4 | - return immediately from poll_wait if nreqs==0. |
458 | - return immediately from poll_wait if nreqs==0. |
| 5 | - get rid of the request pipe and use faster thread-thread |
459 | - get rid of the request pipe and use faster thread-thread |
| 6 | communications. |
460 | communications for most requests and responses. |
| 7 | |
461 | |
| 8 | 0.1 |
462 | 0.1 |
| 9 | - cloned from Linux::AIO, which is very similar. |
463 | - cloned from Linux::AIO, which is very similar. |
| 10 | |
464 | |
