| 1 | Revision history for IO::AIO |
1 | Revision history for IO::AIO |
| 2 | |
2 | |
| 3 | TODO: better autoconf.pm that can return LIBS etc. |
3 | TODO: scandir - some dirs mostly contain subdirs - invert logic? |
| 4 | TODO: aio_cptree/mvtree |
4 | TODO: aio_cptree/mvtree |
| 5 | TODO: reduce condvar fairness: schedule hot-cache-threads first? |
5 | TODO: reduce condvar fairness: schedule hot-cache-threads first? |
| 6 | TODO: splice/tee/vmsplice/sync_file_range? (http://kerneltrap.org/node/6505 http://lwn.net/Articles/178199/) |
6 | TODO: vmsplice? (http://kerneltrap.org/node/6505 http://lwn.net/Articles/178199/) |
| 7 | TODO: aio_fcntl, at least for file-locking |
7 | TODO: aio_fcntl, at least for file-locking |
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8 | TODO: aio_mincore? |
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9 | TODO: getxattr etc.? |
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10 | TODO: F_DUPFD_CLOEXEC |
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11 | TODO: emulation for splice? |
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12 | TODO: eio_mmap|mlock|munmap|splice... |
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13 | TODO: syncfs/sync windows: |
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14 | TODO: F_SETPIPE_SZ, F_GETPIPE_SZ |
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15 | TODO: posix_fallocate when flags=0 |
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16 | http://stackoverflow.com/questions/65170/how-to-get-name-associated-with-open-handle/5286888#5286888 |
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17 | http://blogs.msdn.com/b/adioltean/archive/2005/04/16/408947.aspx |
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18 | http://msdn.microsoft.com/en-us/library/aa366789%28v=vs.85%29.aspx |
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19 | http://msdn.microsoft.com/en-us/library/windows/desktop/aa366789%28v=vs.85%29.aspx |
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20 | http://msdn.microsoft.com/en-us/library/windows/desktop/aa364425%28v=vs.85%29.aspx |
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21 | http://msdn.microsoft.com/en-us/library/windows/desktop/aa364963%28v=vs.85%29.aspx |
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22 | http://msdn.microsoft.com/en-us/library/windows/desktop/aa364996%28v=vs.85%29.aspx |
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23 | http://msdn.microsoft.com/en-us/library/windows/desktop/aa364994%28v=vs.85%29.aspx |
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24 | TODO: extra socket/tcp constants &c? |
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25 | TODO: getrandom, GRND_NONBLOCK, GRND_NONBLOCK |
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26 | TODO: http://lwn.net/Articles/593918/ SHMEM_SET_SEALS, SHMEM_GET_SEALS, SEAL_SHRINK, SEAL_GROW, SEAL_WRITE, int memfd_create(const char *name, u64 size, u64 flags);, MFD_CLOEXEC, int fd = open("/tmp", O_RDWR | O_TMPFILE | O_EXCL, S_IRWXU); |
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27 | TODO: O_TMPFILE |
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28 | TODO: FALLOC_FL_COLLAPSE_RANGE |
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29 | TODO: FALLOC_FL_ZERO_RANGE |
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30 | TODO: renameat RENAME_EXCHANGE, RENAME_NOREPLACE, RENAME_EXCHANGE |
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31 | TODO: fcntl F_GETLKP/F_SETLKP/F_SETLKPW, http://lwn.net/Articles/586904/ |
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32 | TODO: flink + AT_EMPTY_PATH |
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33 | TODO: name_to_handle_At + open_by_handle_at = clone fds |
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34 | TODO: lchown |
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35 | |
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36 | TODO: rewrite rmtree et al. to support working directories (also speed them up) |
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37 | TODO: maybe IO::AIO leaks fds when requests are cancelled? maybe initialise result to -1? |
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38 | TODO: aio_wd should use O_PATH on linux, due to lacking O_SEARCH (http://comments.gmane.org/gmane.linux.file-systems/33611) |
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39 | http://www.openwall.com/lists/musl/2013/02/23/4 |
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40 | TODO: aio_fcntl/ioctl test. |
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41 | |
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42 | 4.34 Sun May 1 19:18:24 CEST 2016 |
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43 | - def0.h was not properly generated during previous release, causing |
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44 | compile errors on various platforms. |
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45 | - major/minor were accidentally switched (reported by Alexander Lishenyuk). |
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46 | - removed duplicate definition of MAP_HUGETLB, that was found due to |
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47 | a bug in Perl::Tidy (testcase by alaska332@gmail.com). |
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48 | - added (untested!) aio_fcntl, aio_ioctl requests. |
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49 | - (libeio) names set via prctl are truncated to 15 chars + nul, not 16, |
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50 | as manpages-dev originally claimed. |
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51 | |
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52 | 4.33 Mon Jan 18 12:50:10 CET 2016 |
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53 | - add IO::AIO::pipe2 function. |
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54 | - added support for FALLOC_FL_COLLAPSE_RANGE and FALLOC_FL_ZERO_RANGE |
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55 | constants. |
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56 | - added support for O_TMPFILE and O_PATH constants. |
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57 | - added support for MAP_FIXED, MAP_GROWSDOWN,MAP_32BIT, MAP_HUGETLB, MAP_STACK |
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58 | consdtants, whether they can be sensibly used or not. |
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59 | - use NO_INIT where applicable. |
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60 | - update libecb. |
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61 | - added stability canary support. |
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62 | - updated linux super magic table to 4.3.3. |
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63 | |
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64 | 4.32 Wed Feb 11 20:32:11 CET 2015 |
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65 | - replace off_t by STRLEN where appropriate, should not result in |
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66 | user-visible changes. |
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67 | - update ecb.h for C11 compatibility. |
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68 | |
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69 | 4.31 Tue Jun 3 03:29:27 CEST 2014 |
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70 | - work around more 5.20 bugs. backwards compatibility my ass. |
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71 | |
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72 | 4.3 Fri Apr 11 06:22:38 CEST 2014 |
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73 | - perl5porters broke Async::Interrupt, BDB, EV, IO::AIO, OpenCL |
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74 | without warning by switching the meaning of USE_SOCKETS_AS_HANDLES |
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75 | in 5.18. What's so attractive about giving a shit about backwards |
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76 | compatibility - I will never understand. |
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77 | |
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78 | 4.2 Sat Jan 25 01:13:14 CET 2014 |
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79 | - aio_group could corrupt memory because it didn't restore |
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80 | the stack after req_submit. |
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81 | - be more careful on (e.g. permission) errors in bin/treescan. |
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82 | - work around changes in ExtUtils::MakeMaker. |
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83 | - (libeio) implement aio_realpath for win32. |
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84 | - (xthread) work around compile time bugs in ptw32. |
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85 | - added IO::AIO::pipesize. |
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86 | - (libecb) insignificant update. |
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87 | |
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88 | 4.19 Sun Jan 6 12:47:26 CET 2013 |
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89 | - avoid endless loop in fiemap with some XFS files. |
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90 | - in aio_rename and aio_rmdir, specialcase the case of [$wd, "."] |
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91 | and call rename/rmdir instead of renameat/unlinkat. |
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92 | |
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93 | 4.18 Thu Oct 11 07:01:26 CEST 2012 |
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94 | - fix unintended xthread_create by intentionalising it :) |
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95 | |
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96 | 4.17 Thu Oct 11 05:19:47 CEST 2012 |
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97 | - rename aio_fallocate to aio_allocate, to match documentation. |
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98 | - add list of linux fsid values to aio_statvfs docs. |
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99 | - work around a bug in btrfs' FIEMAP ioctl implementation. |
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100 | - work around AIX bug: statvfs.f_fsid is a struct, not unsigned long |
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101 | as per unix spec. |
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102 | |
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103 | 4.16 Tue Aug 14 05:39:03 CEST 2012 |
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104 | - aio_statvfs was wromgly marked for wd emulation, causing |
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105 | it to malfunction for paths. |
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106 | - fix a crash in aio_fiemap, when used on ranges without any |
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107 | extents. |
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108 | - work around linux kernel bug (at least in 3.2): kernel might |
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109 | trash fiemap input arguments. |
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110 | - work around linux kernel bug (at least in 3.2): kernel does not |
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111 | set FIEMAP_EXTENT_LAST on last segment. |
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112 | - work around linux kernel bug (at least in 3.2): kernel silently |
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113 | truncates segment count if a file. |
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114 | - make fh argument of IO::AIO::mmap optional, also add mmap/munmap |
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115 | to quick overview. |
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116 | - splice can corrupt data. |
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117 | - (libeio) remove pread/pwrite emulation. |
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118 | - do not grow mmaped scalars in aio_read. |
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119 | - add FALLOC_FL_PUNCH_HOLE and document fallocate. |
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120 | - provide pread/pwrite for win32, making it link again on native win32. |
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121 | |
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122 | 4.15 Tue Apr 10 06:59:00 CEST 2012 |
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123 | - always include linux/types.h for fiemap, for compatibility to |
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124 | ancient systems (Paul Howarth). |
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125 | - experimental support for IO::AIO::splice and ::tee (no aio_...). |
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126 | - provide SEEK_HOLE and SEEK_DATA, if available. |
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127 | - work around (again!) an immensely stupid bug in RHEL, defining |
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128 | autoconf macros in linux system headers (analysed by Paul Howarth). |
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129 | |
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130 | 4.14 Sat Apr 7 02:45:18 CEST 2012 |
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131 | - fix stat structure usage on windows, which caused bogus stat results. |
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132 | - (libeio) make readahead emulation behave more like actual readahead by never failing. |
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133 | - new request aio_seek. |
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134 | - new request aio_fiemap. |
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135 | - autogenerate the #ifdef/#define 0 blocks for symbols we export. |
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136 | |
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137 | 4.12 Fri Dec 30 08:51:25 CET 2011 |
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138 | - realpath would return a random value if the name was too long, |
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139 | instead of -1. |
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140 | - port to c89. |
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141 | |
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142 | 4.11 Mon Oct 10 00:24:11 CEST 2011 |
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143 | - libeio didn't compile on !linux (Paul Howarth). |
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144 | |
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145 | 4.1 Sun Oct 9 10:24:11 CEST 2011 |
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146 | - IO::AIO did access uninitialised memory on unsuccessful stats. |
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147 | - (libeio) added syncfs syscall wrapper. |
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148 | - (libeio) set thread name on linux (ps -L/Hcx, top, gdb). |
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149 | - (libeio) support multiple indepenent working directories. |
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150 | - applied speling corrections by Nicholas Bamber. |
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151 | - tune treescan #threads and #outstanding requests a bit. |
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152 | - reduce the number of file descriptors in use at any one time |
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153 | in treescan, to avoid running out of them (and using too much ram). |
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154 | - take advantage of working directoriy abstractions |
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155 | in aio_scandir and treescan. |
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156 | - reduce compiled size by ~10% by not inlining some key functionality. |
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157 | - added --progress switch to treescan. |
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158 | |
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159 | 4.0 Mon Jul 18 05:01:10 CEST 2011 |
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160 | - INCOMPATIBLE CHANGE: fork is no longer supported (indeed, it never was), |
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161 | see FORK BEHAVIOUR in manpage for details. |
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162 | - passes testsuite on win32 now and may actually work |
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163 | (activestate 5.10.1 / MSVC6, YMMV). |
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164 | - (libeio) fix a deadlock where a wakeup signal could be missed when |
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165 | a timeout occured at the same time. |
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166 | - (libeio) added realpath. |
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167 | - (libeio) added fallocate. |
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168 | - (libeio) disabling sendfile on darwin unfortunately broke the emulation. |
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169 | - (libeio) do not acquire any locks when forking. |
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170 | - (libeio) use fewer time() syscalls when waiting for new requests. |
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171 | |
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172 | 3.93 Wed Jun 29 23:44:18 CEST 2011 |
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173 | - ECB.H WAS MISSING. |
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174 | |
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175 | 3.92 Wed Jun 29 14:45:41 CEST 2011 |
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176 | - ecb.h was missing. |
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177 | |
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178 | 3.91 Wed Jun 29 13:24:42 CEST 2011 |
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179 | - (libeio) work around a Linux (and likely FreeBSD and other |
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180 | kernels) bug where sendfile would not transfer all the requested |
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181 | bytes on large transfers, using a heuristic. |
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182 | - buggy sendfile caused aio_move/copy to sometimes fail for big |
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183 | files (fortunately it checks that the whole file has been |
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184 | transferred...) |
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185 | - use libecb for higher performance and higher portability. |
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186 | - (libeio) disable sendfile on darwin, it's too broken. |
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187 | - disable fork tests on !linux, as only linux supports mixing |
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188 | pthread and fork in perl. |
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189 | - document the fact that fork doesn't work anymore when using |
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190 | this module, on anything !GNU/Linux. |
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191 | - increase timeout in t/04_fork.t, as too many CPAN-tester setups |
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192 | run on a 0.1MHz cpu. Or so. |
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193 | |
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194 | 3.9 Fri May 27 02:43:47 CEST 2011 |
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195 | - (libeio) fix memory corruption in aio_readdirx for the flags |
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196 | combination READDIR_STAT_ORDER | READDIR_DIRS_FIRST. |
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197 | - add lots of newer POSIX and GNU/Linux-specific open |
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198 | flags. |
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199 | |
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200 | 3.8 Sun Mar 27 12:25:33 CEST 2011 |
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201 | - use nonstandard but maybe-working-on-bsd fork technique. |
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202 | - support a max_idle value of 0. |
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203 | - support setting of idle timeout value (IO::AIO::idle_timeout). |
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204 | |
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205 | 3.72 Fri Feb 11 04:25:38 CET 2011 |
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206 | - use _POSIX_MEMLOCK_RANGE to detect mlock/munlock. |
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207 | - aio_mknod always used a dev_t value of 0. |
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208 | - new treescan option: --grep. |
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209 | - add more S_IF macros, and major/minor/makedev "macros". |
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210 | |
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211 | 3.71 Thu Dec 30 08:18:46 CET 2010 |
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212 | - the numerical result value passed to callbacks did not stringify |
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213 | correctly, due to internal reuse and failure to reset the sv flags. |
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214 | - actually test for posix_[mf]advise, as at least uClibc defines |
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215 | _POSIX_ADVISORY_INFO without actually having any of the required |
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216 | funcitonality. ugh. |
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217 | |
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218 | 3.7 Mon Nov 1 23:00:34 CET 2010 |
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219 | - implement/add madvise, mmap, munmap, aio_mlockall, munlockall, |
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220 | aio_mlock, munlock, msync and mtouch to @EXPORT_OK. |
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221 | - document the sad state of affairs w.r.t. pthread on many bsds. |
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222 | - do not enable mmap on systems without _POSIX_MAPPED_FILES |
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223 | (openbsd 4.8). |
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224 | - do not leak memory in IO::AIO::mmap when the scalar already |
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225 | had string-data. |
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226 | - add O_RDWR, O_APPEND and O_EXCL symbols and semi-document |
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227 | them. |
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228 | - cache the result IV, for a minor speedup in the common case. |
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229 | - croak when an mmapped-scalar changes location, to detect |
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230 | user-errors better. |
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231 | - fix aio_readlink prototype. |
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232 | |
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233 | 3.65 Wed Mar 31 02:45:05 CEST 2010 |
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234 | - actually use PATH_MAX instead of NAME_MAX for readlink, as to not |
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235 | cut off long pathnames in aio_readlink (based on patch by |
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236 | Rasmus Andersson). |
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237 | - a double fork partially killed the event pipe (great testcase |
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238 | by dormando). affects IO::AIO, BDB and Async::Interrupt. |
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239 | - suck steve's dick and rename our symbols to avoid colliding |
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240 | with nonstandard identifier spam on the broken os x pseudo-os. |
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241 | affects IO::AIO and BDB. |
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242 | |
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243 | 3.6 Mon Jan 11 00:43:39 CET 2010 |
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244 | - (libeio) more fixes for the freebsd/apple sendfile - broken by |
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245 | manpage standards, but apparently correct accoridng to actual |
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246 | kernel sources. |
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247 | - add IO::AIO::mmap/munmap support. |
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248 | - add IO::AIO::m(un)lockall support. |
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249 | - clean up manpage. |
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250 | |
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251 | 3.5 Thu Jan 7 21:25:04 CET 2010 |
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252 | - (liebio) fix freebsd sendfile (Vanilla Hsu). |
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253 | - (libeio) also fix darwin sendfile that suffered from a similar bug. |
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254 | - add aio_statvfs as interface to statvfs/fstatvfs. |
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255 | - work around buggy symlink() on cygwin in the testsuite. |
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256 | - wtf. freebsd-8.0 actually passes the testsuite! I knew |
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257 | they could implement fork and semaphores one day! cheers! |
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258 | |
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259 | 3.4 Sat Jan 2 15:13:04 CET 2010 |
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260 | - (libeio) max_poll_time was not properly converted to ticks. |
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261 | - clarify cancel_subs description. |
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262 | - IO::AIO::sendfile did not actually return the return value |
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263 | from the sendfile call. |
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264 | - implement aio_msync, aio_mtouch. |
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265 | - (libeio) tentatively support darwin in sendfile. |
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266 | |
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267 | 3.31 Thu Nov 12 02:14:29 CET 2009 |
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268 | - fix result status documentation of aio_copy, aio_move. |
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269 | - speed up object creation considerably by avoiding |
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270 | hash lookups. |
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271 | |
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272 | 3.3 Wed Aug 5 13:52:58 CEST 2009 |
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273 | - use common::sense. |
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274 | - use common schmorp.h header. |
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275 | - allow integers (file descriptors) in addition to file handles. |
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276 | - take advantage of linux' eventfd (but it seems slower on smp?). |
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277 | - use poll not select on posix platforms. |
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278 | |
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279 | 3.261 Wed Jul 1 10:11:51 CEST 2009 |
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280 | - more 0S X workarounds (patch by Tokuhiro Matsuno). |
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281 | |
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282 | 3.26 Tue Jun 30 09:33:26 CEST 2009 |
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283 | - 0S X of course claims to be posix 2008 but lacks posix_fadvise. |
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284 | try to work around this horribly broken OS in a somewhat hackish |
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285 | way. might help other os's too. |
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286 | |
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287 | 3.25 Sat Jun 27 05:18:26 CEST 2009 |
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288 | - added IO::AIO::fadvise and IO::AIO::sendfile. |
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289 | - (libeio) replaced quicksort+insertion sort by a tuned radix |
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290 | sort + insertion sort, resulting in comparable runtime (usually |
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291 | faster) to the old version, but without any ill side effects on |
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292 | degenerated (for quicksort) data. |
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293 | - (libeio) correctly sort dirs by inodes if we have perfect type |
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294 | knowledge and DIRS_FIRST is used. |
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295 | - (libeio) internally the wrong DT_* constants were used, but no |
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296 | known system has differing EIO_DT_*/DT_* values, so not an issue. |
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297 | - removed a (harmless) assert that was left over on the code |
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298 | but should not have been. |
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299 | - use more correct types (change IO length from IV to VAL64, |
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300 | which makes a difference on systems without 64 bit perls). |
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301 | |
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302 | 3.23 Sat Jun 13 16:57:58 CEST 2009 |
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303 | - fix off-by-one bug in aio_readdir that was introduced in the |
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304 | rushed 3.22 release. |
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305 | |
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306 | 3.22 Sat Jun 13 15:32:40 CEST 2009 |
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307 | - speed up readdirx sort algorithm slightly. |
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308 | - bin/treescan was missing from distro tarball. |
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309 | |
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310 | 3.21 Fri Jun 12 18:45:53 CEST 2009 |
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311 | - new options --dirs and --files for treescan. |
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312 | - install bin/treescan by default. |
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313 | - (libeio) aio_readdir can now be cancelled while executing. |
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314 | - fix a printf format string for 64 bit systems (could lead |
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315 | to problems on big endian 64 bit systems). |
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316 | - do not use qsort() but our own algorithm: glibc initialises |
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317 | the whole locale and I/O subsystem inside qsort, causing |
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318 | a stack overflow on 32 bit machines. The new sort uses much less |
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319 | stack and is more than twice as fast in typical situations. |
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320 | |
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321 | 3.2 Sun Jun 7 20:30:05 CEST 2009 |
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322 | - (libeio) pwrite emulation was even more flawed than intended and did |
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323 | not restore the file offset. |
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324 | - add aio_readdirx, which can return inode and filetype and sort |
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325 | the names in various ways. |
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326 | - unfortunately, utime, chmod, chown on an open file that has just |
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327 | been written can easily block, which caused aio_copy to block the |
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328 | process. no more! |
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329 | - no longer rely on dst path in aio_copy when futime is available. |
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330 | |
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331 | 3.19 Tue Apr 21 22:05:21 CEST 2009 |
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332 | - more perl 5.10 workarounds for aio_read and write. |
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333 | - aio_write no longer modifies the sv (if possible). |
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334 | - aio_read now works correctly with magic values. |
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335 | |
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336 | 3.18 Sun Apr 19 21:17:32 CEST 2009 |
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337 | - better diagnostics when some aio_* functions get passed an illegal fh. |
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338 | - try to avoid crashes due to incompatible 5.10 API changes. grmbl. |
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339 | |
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340 | 3.17 Thu Nov 20 08:45:36 CET 2008 |
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341 | - (libeio) added aio_sync_file_range (untested). |
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342 | - add aio_busy to @IO::AIO::AIO_REQ. |
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343 | |
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344 | 3.16 Wed Oct 22 18:28:01 CEST 2008 |
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345 | - use SvREFCNT_inc instead of SvREFCNT_inc_NN in a non-speed critical |
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346 | part to improve portability to perl 5.8 (reported by szymon). |
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347 | |
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348 | 3.15 Mon Oct 13 00:39:55 CEST 2008 |
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349 | - automatic removal of feeders was broken. |
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350 | - (libeio) use a more robust method to detect whether a feeder |
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351 | has added something to the group or not. |
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352 | |
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353 | 3.1 Thu Oct 2 13:34:40 CEST 2008 |
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354 | - pre-deref the passed callback object, for increased speed |
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355 | and decreased memory usage. |
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356 | - call on_next_submit callback even for aio_group - impact unknown, |
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357 | but seems more correct. |
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358 | - $req->cb now returns the original callback. |
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359 | - (libeio) pass EIO_GROUP/aio_group requests through the queue without |
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360 | requiring a thread switch. |
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361 | - (libeio) status code of aio_futime and aio_utime was always passed 0. |
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362 | - do some other ยต-optimisations. |
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363 | |
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364 | 3.07 Sat Aug 2 16:06:13 CEST 2008 |
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365 | - do not include LIBS in autoconf tests. |
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366 | |
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367 | 3.06 Tue Jul 15 12:41:32 CEST 2008 |
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368 | - move preadwritelock definition before it's first reference, |
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369 | to make it compile again on broken platforms (they still exist) |
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370 | or badly cofngiured perls (redhat...), reported by Rob Bloodgood. |
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371 | |
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372 | 3.05 Thu Jun 19 23:23:52 CEST 2008 |
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373 | - work around perl overriding readdir etc. with thread-unsafe |
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374 | (sic!) versions. |
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375 | |
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376 | 3.04 Wed Jun 18 01:35:38 CEST 2008 |
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377 | - (libeio) fix eio_mknod, which confused it's arguments. |
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378 | - (libeio) do not use readdir_r, as Ulrich Drepper pointed out that this |
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379 | is stupid. |
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380 | - (libeio) fix eio__readahead prototype, patch by Jost Krieger. |
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381 | - (libeio) fix a bug that could potentially cause IO::AIO |
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382 | not to get initialised properly. |
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383 | |
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384 | 3.03 Thu May 29 05:33:30 CEST 2008 |
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385 | - (libeio) correctly call pthread_attr_destroy (). |
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386 | - (libeio) work around broken bsd headers once more. |
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387 | - reduce shared library size again by not including wrappers. |
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388 | - max_outstanding could cause poll to enter a busy-waiting loop. |
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389 | - document the new IO::AIO::poll_cb result value. |
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390 | |
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391 | 3.02 Mon May 12 02:32:02 CEST 2008 |
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392 | - fix a memory leak on aio_readlink. |
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393 | - bring back working fchmod. |
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394 | - nop and busy now set result to 0. |
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395 | - set errno to ENOMEM when allocation fails. |
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396 | |
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397 | 3.01 Sun May 11 03:07:03 CEST 2008 |
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398 | - (libeio) make it compile on systems without readahead or readdir_r. |
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399 | - (libeio) improve configure check for readahead availability. |
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400 | - do not try to link against -lrt. |
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401 | - use a separate configure script for IO::AIO (not the libeio one). |
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402 | |
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403 | 3.0 Sun May 11 00:57:14 CEST 2008 |
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404 | - added bin/treescan to the distribution. |
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405 | - switched to using libeio. |
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406 | - LOTS OF INCOMPATIBLE CHANGES: |
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407 | - remove signal functionality, it is not worth the effort. |
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408 | - max_outstanding no longer returns the previous number of requests. |
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409 | - poll_cb no longer returns number of requests. |
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410 | |
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411 | 2.62 Sat Apr 26 13:59:33 CEST 2008 |
| 9 | - port to solaris perls configured for old posix |
412 | - port to solaris perls configured for old posix |
| 10 | (analysed by Jost Krieger). |
413 | (analysed by Jost Krieger). |
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414 | - keep a reference to the perl filehandle object in aio_close, |
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415 | so it doesn't get closed prematurely, leading to ugly races. |
| 11 | |
416 | |
| 12 | 2.61 Wed Apr 16 18:45:02 CEST 2008 |
417 | 2.61 Wed Apr 16 18:45:02 CEST 2008 |
| 13 | - fix treescan output duplication and improve output ordering. |
418 | - fix treescan output duplication and improve output ordering. |
| 14 | also display files given on the commandline. |
419 | also display files given on the commandline. |
| 15 | - use a different algorithm for aio_close that is faster |
420 | - use a different algorithm for aio_close that is faster |
