| 1 | Revision history for IO::AIO |
1 | Revision history for IO::AIO |
| 2 | |
2 | |
| 3 | - (experimental) sendfile support, including sendfile emulation |
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 | |
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10 | - use common::sense. |
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11 | - use common schmorp.h header. |
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12 | - allow integers (file descriptors) in addition to file handles. |
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13 | - take advantage of linux' eventfd (but it seems slower on smp?). |
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14 | - use poll not select on posix platforms. |
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15 | |
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16 | 3.261 Wed Jul 1 10:11:51 CEST 2009 |
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17 | - more OS X workarounds (patch by Tokuhiro Matsuno). |
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18 | |
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19 | 3.26 Tue Jun 30 09:33:26 CEST 2009 |
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20 | - os x of course claims posix 2008 but lacks posix_fadvise. try to work |
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21 | around this horribly broken OS in a somewhat hackish way. might help |
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22 | other os's too. |
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23 | |
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24 | 3.25 Sat Jun 27 05:18:26 CEST 2009 |
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25 | - added IO::AIO::fadvise and IO::AIO::sendfile. |
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26 | - (libeio) replaced quicksort+insertion sort by a tuned radix |
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27 | sort + insertion sort, resulting in comparable runtime (usually |
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28 | faster) to the old version, but without any ill side effects on |
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29 | degenerated (for quicksort) data. |
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30 | - (libeio) correctly sort dirs by inodes if we have perfect type |
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31 | knowledge and DIRS_FIRST is used. |
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32 | - (libeio) internally the wrong DT_* constants were used, but no |
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33 | known system has differing EIO_DT_*/DT_* values, so not an issue. |
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34 | - removed a (harmless) assert that was left over on the code |
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35 | but should not have been. |
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36 | - use more correct types (change IO length from IV to VAL64, |
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37 | which makes a difference on systems without 64 bit perls). |
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38 | |
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39 | 3.23 Sat Jun 13 16:57:58 CEST 2009 |
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40 | - fix off-by-one bug in aio_readdir that was introduced in the |
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41 | rushed 3.22 release. |
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42 | |
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43 | 3.22 Sat Jun 13 15:32:40 CEST 2009 |
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44 | - speed up readdirx sort algorithm slightly. |
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45 | - bin/treescan was missing from distro tarball. |
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46 | |
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47 | 3.21 Fri Jun 12 18:45:53 CEST 2009 |
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48 | - new options --dirs and --files for treescan. |
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49 | - install bin/treescan by default. |
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50 | - (libeio) aio_readdir can now be cancelled while executing. |
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51 | - fix a printf format string for 64 bit systems (could lead |
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52 | to problems on big endian 64 bit systems). |
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53 | - do not use qsort() but our own algorithm: glibc initialises |
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54 | the whole locale and I/O subsystem inside qsort, causing |
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55 | a stack overflow on 32 bit machines. The new sort uses much less |
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56 | stack and is more than twice as fast in typical situations. |
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57 | |
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58 | 3.2 Sun Jun 7 20:30:05 CEST 2009 |
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59 | - (libeio) pwrite emulation was even more flawed than intended and did |
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60 | not restore the file offset. |
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61 | - add aio_readdirx, which can return inode and filetype and sort |
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62 | the names in various ways. |
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63 | - unfortunately, utime, chmod, chown on an open file that has just |
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64 | been written can easily block, which caused aio_copy to block the |
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65 | process. no more! |
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66 | - no longer rely on dst path in aio_copy when futime is available. |
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67 | |
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68 | 3.19 Tue Apr 21 22:05:21 CEST 2009 |
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69 | - more perl 5.10 workarounds for aio_read and write. |
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70 | - aio_write no longer modifies the sv (if possible). |
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71 | - aio_read now works correctly with magic values. |
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72 | |
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73 | 3.18 Sun Apr 19 21:17:32 CEST 2009 |
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74 | - better diagnostics when some aio_* functions get passed an illegal fh. |
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75 | - try to avoid crashes due to incompatible 5.10 API changes. grmbl. |
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76 | |
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77 | 3.17 Thu Nov 20 08:45:36 CET 2008 |
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78 | - (libeio) added aio_sync_file_range (untested). |
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79 | - add aio_busy to @IO::AIO::AIO_REQ. |
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80 | |
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81 | 3.16 Wed Oct 22 18:28:01 CEST 2008 |
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82 | - use SvREFCNT_inc instead of SvREFCNT_inc_NN in a non-speed critical |
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83 | part to improve portability to perl 5.8 (reported by szymon). |
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84 | |
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85 | 3.15 Mon Oct 13 00:39:55 CEST 2008 |
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86 | - automatic removal of feeders was broken. |
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87 | - (libeio) use a more robust method to detect whether a feeder |
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88 | has added something to the group or not. |
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89 | |
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90 | 3.1 Thu Oct 2 13:34:40 CEST 2008 |
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91 | - pre-deref the passed callback object, for increased speed |
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92 | and decreased memory usage. |
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93 | - call on_next_submit callback even for aio_group - impact unknown, |
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94 | but seems more correct. |
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95 | - $req->cb now returns the original callback. |
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96 | - (libeio) pass EIO_GROUP/aio_group requests through the queue without |
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97 | requiring a thread switch. |
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98 | - (libeio) status code of aio_futime and aio_utime was always passed 0. |
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99 | - do some other ยต-optimisations. |
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100 | |
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101 | 3.07 Sat Aug 2 16:06:13 CEST 2008 |
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102 | - do not include LIBS in autoconf tests. |
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103 | |
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104 | 3.06 Tue Jul 15 12:41:32 CEST 2008 |
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105 | - move preadwritelock definition before it's first reference, |
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106 | to make it compile again on broken platforms (they still exist) |
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107 | or badly cofngiured perls (redhat...), reported by Rob Bloodgood. |
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108 | |
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109 | 3.05 Thu Jun 19 23:23:52 CEST 2008 |
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110 | - work around perl overriding readdir etc. with thread-unsafe |
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111 | (sic!) versions. |
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112 | |
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113 | 3.04 Wed Jun 18 01:35:38 CEST 2008 |
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114 | - (libeio) fix eio_mknod, which confused it's arguments. |
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115 | - (libeio) do not use readdir_r, as Ulrich Drepper pointed out that this |
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116 | is stupid. |
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117 | - (libeio) fix eio__readahead prototype, patch by Jost Krieger. |
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118 | - (libeio) fix a bug that could potentially cause IO::AIO |
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119 | not to get initialised properly. |
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120 | |
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121 | 3.03 Thu May 29 05:33:30 CEST 2008 |
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122 | - (libeio) correctly call pthread_attr_destroy (). |
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123 | - (libeio) work around broken bsd headers once more. |
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124 | - reduce shared library size again by not including wrappers. |
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125 | - max_outstanding could cause poll to enter a busy-waiting loop. |
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126 | - document the new IO::AIO::poll_cb result value. |
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127 | |
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128 | 3.02 Mon May 12 02:32:02 CEST 2008 |
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129 | - fix a memory leak on aio_readlink. |
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130 | - bring back working fchmod. |
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131 | - nop and busy now set result to 0. |
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132 | - set errno to ENOMEM when allocation fails. |
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133 | |
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134 | 3.01 Sun May 11 03:07:03 CEST 2008 |
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135 | - (libeio) make it compile on systems without readahead or readdir_r. |
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136 | - (libeio) improve configure check for readahead availability. |
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137 | - do not try to link against -lrt. |
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138 | - use a separate configure script for IO::AIO (not the libeio one). |
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139 | |
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140 | 3.0 Sun May 11 00:57:14 CEST 2008 |
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141 | - added bin/treescan to the distribution. |
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142 | - switched to using libeio. |
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143 | - LOTS OF INCOMPATIBLE CHANGES: |
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144 | - remove signal functionality, it is not worth the effort. |
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145 | - max_outstanding no longer returns the previous number of requests. |
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146 | - poll_cb no longer returns number of requests. |
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147 | |
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148 | 2.62 Sat Apr 26 13:59:33 CEST 2008 |
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149 | - port to solaris perls configured for old posix |
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150 | (analysed by Jost Krieger). |
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151 | - keep a reference to the perl filehandle object in aio_close, |
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152 | so it doesn't get closed prematurely, leading to ugly races. |
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153 | |
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154 | 2.61 Wed Apr 16 18:45:02 CEST 2008 |
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155 | - fix treescan output duplication and improve output ordering. |
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156 | also display files given on the commandline. |
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157 | - use a different algorithm for aio_close that is faster |
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158 | and probably has even lower chances of blocking. |
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159 | - do our own stack memory management for threads - linux |
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160 | allocates outrageous amounts of VM (not so bad unless you |
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161 | use mlockall...), which severely limits the number of threads |
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162 | on 32-bit arches: stack size is the larger of PTHREAD_STACK_MIN |
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163 | and 4096 * sizeof (long) (usually this is 16..64k). |
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164 | |
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165 | 2.6 Sun Mar 30 08:28:11 CEST 2008 |
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166 | - added aio_sync. |
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167 | - added aio_pathsync. |
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168 | - fix prototypes of (void) functions. |
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169 | |
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170 | 2.51 Sat Oct 6 16:04:54 CEST 2007 |
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171 | - perlio isn't generally threadsafe, so aio_close could not work reliably. |
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172 | aio_close now tries a safe hack that might not be that asynchronous |
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173 | (see the manpage for details). |
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174 | - discard callback return values as to not grow the stack endlessly |
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175 | when poll_cb handles many requests without returning. |
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176 | - minor code cleanups. |
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177 | |
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178 | 2.5 Thu Oct 4 14:49:08 CEST 2007 |
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179 | - replaced _fd2fh with faster xs code. |
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180 | - aio_close will now try to do "the right thing" and thus might |
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181 | work sensibly for the very first time. |
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182 | |
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183 | 2.41 Mon Sep 24 21:28:21 CEST 2007 |
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184 | - after fork, invest some work to make sure that the poll_fileno |
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185 | stays stable (by dup2'ing the new fd over the old one), to make |
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186 | it easier for programs/libs that don't control their forking |
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187 | behaviour and cannot recreate their watchers. |
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188 | |
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189 | 2.4 Sun Aug 5 18:44:22 CEST 2007 |
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190 | - add aio_truncate, aio_chmod, aio_chown, aio_utime (linux |
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191 | successfully demonstrated that you can block on futimes...). |
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192 | - allow undef as fileoffset for aio_read/write and use read/write(2) |
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193 | internally (useful for sockets or O_APPEND handles). |
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194 | - allow undef for length in aio_write. |
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195 | - negative dataoffsets work as expected now in aio_read/aio_write. |
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196 | - use NV instead of UV for 32 bit perls and file offsets, as NVs |
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197 | have a larger range then. |
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198 | - shared code between BDB and IO::AIO. |
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199 | - aio_busy was completely broken. now fixed. |
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200 | - readahead emulation now returns something. |
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201 | - correctly set errno to ENOSYS on unimplemented functions |
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202 | (should never happen, though). |
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203 | - large changes to make it partially compile and run on win32, |
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204 | but win32 lacks too much functionality, and perl overrides way |
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205 | too many functions with crashing versions. |
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206 | |
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207 | 2.33 Tue Jan 23 23:55:41 CET 2007 |
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208 | - fix install path (Andreas J. Koenig). |
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209 | |
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210 | 2.32 Mon Jan 22 16:56:23 CET 2007 |
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211 | - added aio_rmtree. |
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212 | - wow, aio_mkdir was missing. |
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213 | - aio_load did return undef on error, not -1. |
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214 | - use prefixexp not prefix in autoconf.pm |
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215 | (suggested by ... rt.cpan.org unreachable). |
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216 | - avoid installing autoconf.pm. |
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217 | |
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218 | 2.31 Sat Jan 6 03:46:02 CET 2007 |
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219 | - added aio_load. |
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220 | |
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221 | 2.3 Sat Dec 23 05:48:07 CET 2006 |
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222 | - fix off-by-one bug in aio_read, causing memory corruption |
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223 | or crashes. |
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224 | |
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225 | 2.21 Fri Dec 22 05:03:38 CET 2006 |
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226 | - minor doc updates. |
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227 | - minor cleanups. |
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228 | - IO::AIO::poll returns request count. |
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229 | - undocumented and unfinished async-signal-reporting. |
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230 | |
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231 | 2.2 Tue Oct 31 00:31:00 CET 2006 |
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232 | - minor doc updates. |
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233 | - added aio_readlink. |
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234 | - properly zero-terminate aio_read buffer. |
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235 | - fix aio_read/write with nonzero dataoffset. |
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236 | - reduced size of aio request structure. |
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237 | - better diagnostics when pathnames etc. are not byte-encoded; |
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238 | do not leak request in that case, either. |
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239 | |
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240 | 2.1 Sun Oct 29 02:01:57 CET 2006 |
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241 | - INCOMPATIBLE CHANGE: replace IO::AIO::poll_some by |
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242 | IO::AIO::max_poll_reqs and IO::AIO::max_poll_time. |
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243 | - fix a bug in aio_move where it would fail everytime |
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244 | it would have to copy files manually. |
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245 | - doc updates. |
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246 | - start threads only on (very low) demand. |
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247 | - end superfluous threads automatically after 10s idling. |
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248 | - add IO::AIO::max_idle to control this. |
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249 | - some tuning applied to random places. |
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250 | - add aio_mknod. |
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251 | |
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252 | 2.0 Thu Oct 26 18:27:58 CEST 2006 |
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253 | - minor incompatibility: max_outstanding semantics have changed. |
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254 | - major rewrite, consider all functionality EXPERIMENTAL. |
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255 | - aio requests can be cancelled. |
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256 | - callbacks can be (re-)set later. |
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257 | - aio requests can choose between 9 priorities. |
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258 | - add aio_group: aio requests can be grouped |
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259 | into composite requests. |
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260 | - generator interface for groups. |
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261 | - add IO::AIO::poll_some. |
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262 | - major documentation improvements. |
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263 | - very minor bugfixes. |
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264 | - add aio_nop for dummy requests. |
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265 | - add aio_busy mainly for benchmarking and debugging. |
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266 | - use "fast" mutexes on linux. |
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267 | - use dynamic (and larger) buffers instead of |
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268 | putting them onto the stack. |
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269 | - optimise x86 and amd64 a bit. |
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270 | - better error checking when ENOMEM. |
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271 | - hopefully fix mem and dirp leaks on fork. |
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272 | - warn about broken perl malloc. |
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273 | - compiles on cygwin (but pread is broken on cygwin |
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274 | which is not detected by autoconf, so you have to |
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275 | edit autoconf/config.h yourself to enable emulation). |
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276 | |
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277 | 1.8 Sat Jun 24 22:20:44 CEST 2006 |
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278 | - add and/or document aio_rename, aio_link, aio_symlink and aio_move. |
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279 | |
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280 | 1.73 Wed Mar 1 22:49:32 CET 2006 |
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281 | - codename "jost" |
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282 | - AIX/Solaris(?) aren't being helpful again, hardcode a value |
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283 | for NAME_MAX and drive with your eyes closed (reported by |
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284 | wcooley@nakedape.cc). |
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285 | |
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286 | 1.72 Thu Feb 2 00:40:44 CET 2006 |
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287 | - another minor bug in aio_scandir, again, the callback was called |
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288 | twice when the directory can't be stat'ed. |
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289 | |
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290 | 1.71 Mon Dec 26 20:20:03 CET 2005 |
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291 | - grr, another minor bug in aio_scandir, this time resulting |
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292 | in a runtime error. |
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293 | |
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294 | 1.7 Mon Dec 26 19:29:48 CET 2005 |
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295 | - aio_scandir errornously called callback twice in some cases. |
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296 | - added AnyEvent example. |
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297 | |
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298 | 1.61 Wed Sep 7 19:40:42 CEST 2005 |
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299 | - no longer include $Config{libs}, as distros include too much |
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300 | garbage in there that is not installed on typical systems |
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301 | (for example, debian links perl against -lgdbm and many more |
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302 | libraries despite perl not needing it, slowing down startup and |
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303 | wasting memory). |
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304 | |
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305 | 1.6 Tue Aug 30 17:44:44 CEST 2005 |
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306 | - added aio_readdir, aio_scandir. |
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307 | - added aio_sendfile, including sendfile emulation when sendfile |
| 4 | when sendfile isn't available. Linux, FreeBSD and HP-UX might |
308 | isn't available. Linux, FreeBSD and HP-UX might work (sendfilev |
| 5 | work (sendfilev support is unavailable on my solaris 8 machine...). |
309 | support is unavailable on my solaris 8 machine, but preliminary |
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310 | code is there. What's lacking is configury stuff and testing...). |
| 6 | |
311 | |
| 7 | 1.5 Sat Aug 20 02:32:19 CEST 2005 |
312 | 1.5 Sat Aug 20 02:32:19 CEST 2005 |
| 8 | - create the aio threads on demand only. |
313 | - create the aio threads on demand only (good after forking). |
| 9 | - somebody nagged about C89 compatibility, so this release should |
314 | - somebody nagged about C89 compatibility, so this release should |
| 10 | be C89 compatible, but no guarantees for future ones. |
315 | be C89 compatible, but no guarantees for future ones. |
| 11 | - abort when the configure script fails. |
316 | - abort when the configure script fails. |
| 12 | |
317 | |
| 13 | 1.4 Wed Aug 17 08:07:27 CEST 2005 |
318 | 1.4 Wed Aug 17 08:07:27 CEST 2005 |
| 14 | - forget to recreate the pipe after forking, this could cause |
319 | - forgot to recreate the pipe after forking, this could cause |
| 15 | deadlocks. |
320 | deadlocks. |
| 16 | |
321 | |
| 17 | 1.3 Wed Aug 17 07:25:54 CEST 2005 |
322 | 1.3 Wed Aug 17 07:25:54 CEST 2005 |
| 18 | - properly propagate exceptions from callbacks, instead of silently |
323 | - properly propagate exceptions from callbacks, instead of silently |
| 19 | eating them. |
324 | eating them. |
