| 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/sync_file_range? (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 | |
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9 | 2.61 Wed Apr 16 18:45:02 CEST 2008 |
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10 | - fix treescan output duplication and improve output ordering. |
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11 | also display files given on the commandline. |
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12 | - use a different algorithm for aio_close that is faster |
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13 | and probably has even lower chances of blocking. |
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14 | - do our own stack memory management for threads - linux |
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15 | allocates outrageous amounts of VM (not so bad unless you |
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16 | use mlockall...), which severely limits the number of threads |
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17 | on 32-bit arches: stack size is the larger of PTHREAD_STACK_MIN |
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18 | and 4096 * sizeof (long) (usually this is 16..64k). |
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19 | |
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20 | 2.6 Sun Mar 30 08:28:11 CEST 2008 |
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21 | - added aio_sync. |
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22 | - added aio_pathsync. |
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23 | - fix prototypes of (void) functions. |
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24 | |
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25 | 2.51 Sat Oct 6 16:04:54 CEST 2007 |
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26 | - perlio isn't generally threadsafe, so aio_close could not work reliably. |
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27 | aio_close now tries a safe hack that might not be that asynchronous |
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28 | (see the manpage for details). |
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29 | - discard callback return values as to not grow the stack endlessly |
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30 | when poll_cb handles many requests without returning. |
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31 | - minor code cleanups. |
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32 | |
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33 | 2.5 Thu Oct 4 14:49:08 CEST 2007 |
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34 | - replaced _fd2fh with faster xs code. |
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35 | - aio_close will now try to do "the right thing" and thus might |
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36 | work sensibly for the very first time. |
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37 | |
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38 | 2.41 Mon Sep 24 21:28:21 CEST 2007 |
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39 | - after fork, invest some work to make sure that the poll_fileno |
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40 | stays stable (by dup2'ing the new fd over the old one), to make |
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41 | it easier for programs/libs that don't control their forking |
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42 | behaviour and cannot recreate their watchers. |
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43 | |
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44 | 2.4 Sun Aug 5 18:44:22 CEST 2007 |
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45 | - add aio_truncate, aio_chmod, aio_chown, aio_utime (linux |
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46 | successfully demonstrated that you can block on futimes...). |
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47 | - allow undef as fileoffset for aio_read/write and use read/write(2) |
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48 | internally (useful for sockets or O_APPEND handles). |
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49 | - allow undef for length in aio_write. |
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50 | - negative dataoffsets work as expected now in aio_read/aio_write. |
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51 | - use NV instead of UV for 32 bit perls and file offsets, as NVs |
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52 | have a larger range then. |
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53 | - shared code between BDB and IO::AIO. |
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54 | - aio_busy was completely broken. now fixed. |
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55 | - readahead emulation now returns something. |
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56 | - correctly set errno to ENOSYS on unimplemented functions |
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57 | (should never happen, though). |
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58 | - large changes to make it partially compile and run on win32, |
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59 | but win32 lacks too much functionality, and perl overrides way |
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60 | too many functions with crashing versions. |
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61 | |
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62 | 2.33 Tue Jan 23 23:55:41 CET 2007 |
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63 | - fix install path (Andreas J. Koenig). |
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64 | |
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65 | 2.32 Mon Jan 22 16:56:23 CET 2007 |
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66 | - added aio_rmtree. |
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67 | - wow, aio_mkdir was missing. |
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68 | - aio_load did return undef on error, not -1. |
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69 | - use prefixexp not prefix in autoconf.pm |
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70 | (suggested by ... rt.cpan.org unreachable). |
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71 | - avoid installing autoconf.pm. |
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72 | |
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73 | 2.31 Sat Jan 6 03:46:02 CET 2007 |
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74 | - added aio_load. |
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75 | |
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76 | 2.3 Sat Dec 23 05:48:07 CET 2006 |
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77 | - fix off-by-one bug in aio_read, causing memory corruption |
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78 | or crashes. |
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79 | |
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80 | 2.21 Fri Dec 22 05:03:38 CET 2006 |
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81 | - minor doc updates. |
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82 | - minor cleanups. |
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83 | - IO::AIO::poll returns request count. |
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84 | - undocumented and unfinished async-signal-reporting. |
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85 | |
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86 | 2.2 Tue Oct 31 00:31:00 CET 2006 |
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87 | - minor doc updates. |
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88 | - added aio_readlink. |
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89 | - properly zero-terminate aio_read buffer. |
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90 | - fix aio_read/write with nonzero dataoffset. |
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91 | - reduced size of aio request structure. |
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92 | - better diagnostics when pathnames etc. are not byte-encoded; |
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93 | do not leak request in that case, either. |
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94 | |
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95 | 2.1 Sun Oct 29 02:01:57 CET 2006 |
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96 | - INCOMPATIBLE CHANGE: replace IO::AIO::poll_some by |
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97 | IO::AIO::max_poll_reqs and IO::AIO::max_poll_time. |
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98 | - fix a bug in aio_move where it would fail everytime |
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99 | it would have to copy files manually. |
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100 | - doc updates. |
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101 | - start threads only on (very low) demand. |
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102 | - end superfluous threads automatically after 10s idling. |
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103 | - add IO::AIO::max_idle to control this. |
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104 | - some tuning applied to random places. |
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105 | - add aio_mknod. |
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106 | |
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107 | 2.0 Thu Oct 26 18:27:58 CEST 2006 |
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108 | - minor incompatibility: max_outstanding semantics have changed. |
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109 | - major rewrite, consider all functionality EXPERIMENTAL. |
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110 | - aio requests can be cancelled. |
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111 | - callbacks can be (re-)set later. |
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112 | - aio requests can choose between 9 priorities. |
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113 | - add aio_group: aio requests can be grouped |
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114 | into composite requests. |
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115 | - generator interface for groups. |
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116 | - add IO::AIO::poll_some. |
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117 | - major documentation improvements. |
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118 | - very minor bugfixes. |
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119 | - add aio_nop for dummy requests. |
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120 | - add aio_busy mainly for benchmarking and debugging. |
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121 | - use "fast" mutexes on linux. |
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122 | - use dynamic (and larger) buffers instead of |
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123 | putting them onto the stack. |
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124 | - optimise x86 and amd64 a bit. |
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125 | - better error checking when ENOMEM. |
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126 | - hopefully fix mem and dirp leaks on fork. |
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127 | - warn about broken perl malloc. |
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128 | - compiles on cygwin (but pread is broken on cygwin |
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129 | which is not detected by autoconf, so you have to |
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130 | edit autoconf/config.h yourself to enable emulation). |
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131 | |
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132 | 1.8 Sat Jun 24 22:20:44 CEST 2006 |
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133 | - add and/or document aio_rename, aio_link, aio_symlink and aio_move. |
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134 | |
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135 | 1.73 Wed Mar 1 22:49:32 CET 2006 |
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136 | - codename "jost" |
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137 | - AIX/Solaris(?) aren't being helpful again, hardcode a value |
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138 | for NAME_MAX and drive with your eyes closed (reported by |
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139 | wcooley@nakedape.cc). |
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140 | |
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141 | 1.72 Thu Feb 2 00:40:44 CET 2006 |
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142 | - another minor bug in aio_scandir, again, the callback was called |
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143 | twice when the directory can't be stat'ed. |
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144 | |
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145 | 1.71 Mon Dec 26 20:20:03 CET 2005 |
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146 | - grr, another minor bug in aio_scandir, this time resulting |
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147 | in a runtime error. |
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148 | |
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149 | 1.7 Mon Dec 26 19:29:48 CET 2005 |
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150 | - aio_scandir errornously called callback twice in some cases. |
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151 | - added AnyEvent example. |
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152 | |
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153 | 1.61 Wed Sep 7 19:40:42 CEST 2005 |
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154 | - no longer include $Config{libs}, as distros include too much |
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155 | garbage in there that is not installed on typical systems |
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156 | (for example, debian links perl against -lgdbm and many more |
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157 | libraries despite perl not needing it, slowing down startup and |
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158 | wasting memory). |
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159 | |
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160 | 1.6 Tue Aug 30 17:44:44 CEST 2005 |
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161 | - added aio_readdir, aio_scandir. |
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162 | - added aio_sendfile, including sendfile emulation when sendfile |
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163 | isn't available. Linux, FreeBSD and HP-UX might work (sendfilev |
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164 | support is unavailable on my solaris 8 machine, but preliminary |
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165 | code is there. What's lacking is configury stuff and testing...). |
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166 | |
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167 | 1.5 Sat Aug 20 02:32:19 CEST 2005 |
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168 | - create the aio threads on demand only (good after forking). |
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169 | - somebody nagged about C89 compatibility, so this release should |
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170 | be C89 compatible, but no guarantees for future ones. |
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171 | - abort when the configure script fails. |
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172 | |
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173 | 1.4 Wed Aug 17 08:07:27 CEST 2005 |
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174 | - forgot to recreate the pipe after forking, this could cause |
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175 | deadlocks. |
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176 | |
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177 | 1.3 Wed Aug 17 07:25:54 CEST 2005 |
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178 | - properly propagate exceptions from callbacks, instead of silently |
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179 | eating them. |
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180 | - use a different fork algorithm that avoids recursive callback |
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181 | invocations and reduces fork latency in busy processes. |
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182 | - fix a bug where the buffer scalar in aio_read got assigned the wrong |
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183 | length after reading. |
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184 | - fix a bug where the child would process some outstanding requests |
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185 | from the parent. |
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186 | - make a copy of the callback scalar, to avoid some very uncommon |
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187 | (but valid) usages where the callback scalar changes. |
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188 | - the callback was never freed in aio_read/aio_write. |
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189 | - aio_read/aio_write will now set the readonly flag on the data |
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190 | scalar for better error reporting. |
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191 | |
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192 | 1.2 Wed Aug 17 01:22:58 CEST 2005 |
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193 | - verified on cygwin, linux/amd64+ia32+alpha, solaris. |
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194 | - use SvPVbyte for filenames now. You *need* to encode your strings to |
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195 | the external filename encoding first. |
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196 | - fix the bug where filehandles could leak (again). |
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197 | - clarify freebsd situation: make it work and tell me how, or go away |
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198 | with your underdocumented, broken and outdated OS. |
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199 | - fork'ing should now be officially supported (where linux and |
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200 | posix contradict each other, I followed posix). |
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201 | - only call read() once per poll, not twice (speedup). |
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202 | - new functions: aio_rmdir, aio_symlink. |
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203 | - force callback arguments to be undef or a reference, for better |
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204 | error catching. |
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205 | |
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206 | 1.1 Sun Aug 7 05:27:23 CEST 2005 |
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207 | - added configure script to detect availability of some calls. |
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208 | (imperfect, as we cannot detect things like -lrt due to missing |
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209 | feedback yet). |
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210 | - emulate fdatasync via fsync, pread/pwrite via unsafe read/write |
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211 | and readahead via manual reading on platforms lacking those. |
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212 | - ported t/03_errors.t+framework by Brad Fitzpatrick |
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213 | from Linux::AIO. |
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214 | - removed XOPEN_SOURCE because stupid solaris 9 doesn't |
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215 | compile with it enabled. Probably breaks others. Oh well. |
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216 | - try to be more careful with errno on non-threaded perls. |
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217 | - cygwins perl insisted on a matching open mode when morphing |
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218 | the fd to an fh. |
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219 | - convert sv's to "byte" encoding in aio_read/aio_write. Might |
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220 | do that for pathnames, too, in the future, so make sure you |
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221 | properly encode your pathnames. |
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222 | |
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223 | 1.0 Fri Jul 22 10:43:30 CEST 2005 |
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224 | - aio_open did not reliably deliver (open) filehandles. |
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225 | - all aio_*-functions keep a reference to the filehandle so |
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226 | it doesn't go away while the aio requests is working on it. |
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227 | - disable warnings in AIO.pm. |
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228 | |
| 3 | 0.9 Wed Jul 20 23:55:04 CEST 2005 |
229 | 0.9 Wed Jul 20 23:55:04 CEST 2005 |
| 4 | - allow recursive calls to poll_cb, use less locking calls, too. |
230 | - allow recursive calls to poll_cb, use less locking calls, too. |
| 5 | - fix the Gtk2-example in the SYNOPSIS. |
231 | - fix the Gtk2-example in the SYNOPSIS. |
| 6 | - use pread/pwrite not pread64/pwrite64. this was simply a leftover |
232 | - use pread/pwrite not pread64/pwrite64. this was simply a leftover |
