| 1 | Revision history for IO::AIO |
1 | Revision history for IO::AIO |
| 2 | |
2 | |
| 3 | TODO: better autoconf.pm that can return LIBS etc. |
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| 4 | TODO: aio_cptree/mvtree |
3 | TODO: aio_cptree/mvtree |
| 5 | TODO: reduce condvar fairness: schedule hot-cache-threads first? |
4 | TODO: reduce condvar fairness: schedule hot-cache-threads first? |
| 6 | TODO: fix setsig |
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| 7 | TODO: splice/tee/vmsplice/sync_file_range? (http://kerneltrap.org/node/6505 http://lwn.net/Articles/178199/) |
5 | TODO: vmsplice? (http://kerneltrap.org/node/6505 http://lwn.net/Articles/178199/) |
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6 | TODO: aio_fcntl, at least for file-locking |
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7 | TODO: aio_mincore? |
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8 | TODO: getxattr etc.? |
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9 | TODO: F_DUPFD_CLOEXEC |
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10 | TODO: emulation for splice? |
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11 | TODO: eio_mmap|mlock|munmap|splice... |
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12 | |
| 9 | 2.6 |
13 | - make fh argument of IO::AIO::mmap optional, also add mmap/munmap |
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14 | to quick overview. |
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15 | - splice can corrupt data. |
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16 | - (libeio) remove pread/pwrite emulation. |
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17 | - do not grow mmaped scalars in aio_read. |
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18 | - add FALLOC_FL_PUNCH_HOLE and document fallocate. |
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19 | |
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20 | 4.15 Tue Apr 10 06:59:00 CEST 2012 |
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21 | - always include linux/types.h for fiemap, for compatibility to |
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22 | ancient systems (Paul Howarth). |
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23 | - experimental support for IO::AIO::splice and ::tee (no aio_...). |
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24 | - provide SEEK_HOLE and SEEK_DATA, if available. |
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25 | - work around (again!) an immensely stupid bug in RHEL, defining |
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26 | autoconf macros in linux system headers (analysed by Paul Howarth). |
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27 | |
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28 | 4.14 Sat Apr 7 02:45:18 CEST 2012 |
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29 | - fix stat structure usage on windows, which caused bogus stat results. |
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30 | - (libeio) make readahead emulation behave more like actual readahead by never failing. |
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31 | - new request aio_seek. |
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32 | - new request aio_fiemap. |
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33 | - autogenerate the #ifdef/#define 0 blocks for symbols we export. |
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34 | |
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35 | 4.12 Fri Dec 30 08:51:25 CET 2011 |
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36 | - realpath would return a random value if the name was too long, |
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37 | instead of -1. |
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38 | - port to c89. |
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39 | |
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40 | 4.11 Mon Oct 10 00:24:11 CEST 2011 |
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41 | - libeio didn't compile on !linux (Paul Howarth). |
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42 | |
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43 | 4.1 Sun Oct 9 10:24:11 CEST 2011 |
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44 | - IO::AIO did access uninitialised memory on unsuccessful stats. |
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45 | - (libeio) added syncfs syscall wrapper. |
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46 | - (libeio) set thread name on linux (ps -L/Hcx, top, gdb). |
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47 | - (libeio) support multiple indepenent working directories. |
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48 | - applied speling corrections by Nicholas Bamber. |
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49 | - tune treescan #threads and #outstanding requests a bit. |
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50 | - reduce the number of file descriptors in use at any one time |
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51 | in treescan, to avoid running out of them (and using too much ram). |
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52 | - take advantage of working directoriy abstractions |
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53 | in aio_scandir and treescan. |
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54 | - reduce compiled size by ~10% by not inlining some key functionality. |
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55 | - added --progress switch to treescan. |
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56 | |
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57 | 4.0 Mon Jul 18 05:01:10 CEST 2011 |
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58 | - INCOMPATIBLE CHANGE: fork is no longer supported (indeed, it never was), |
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59 | see FORK BEHAVIOUR in manpage for details. |
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60 | - passes testsuite on win32 now and may actually work |
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61 | (activestate 5.10.1 / MSVC6, YMMV). |
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62 | - (libeio) fix a deadlock where a wakeup signal could be missed when |
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63 | a timeout occured at the same time. |
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64 | - (libeio) added realpath. |
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65 | - (libeio) added fallocate. |
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66 | - (libeio) disabling sendfile on darwin unfortunately broke the emulation. |
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67 | - (libeio) do not acquire any locks when forking. |
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68 | - (libeio) use fewer time() syscalls when waiting for new requests. |
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69 | |
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70 | 3.93 Wed Jun 29 23:44:18 CEST 2011 |
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71 | - ECB.H WAS MISSING. |
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72 | |
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73 | 3.92 Wed Jun 29 14:45:41 CEST 2011 |
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74 | - ecb.h was missing. |
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75 | |
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76 | 3.91 Wed Jun 29 13:24:42 CEST 2011 |
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77 | - (libeio) work around a Linux (and likely FreeBSD and other |
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78 | kernels) bug where sendfile would not transfer all the requested |
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79 | bytes on large transfers, using a heuristic. |
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80 | - buggy sendfile caused aio_move/copy to sometimes fail for big |
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81 | files (fortunately it checks that the whole file has been |
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82 | transferred...) |
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83 | - use libecb for higher performance and higher portability. |
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84 | - (libeio) disable sendfile on darwin, it's too broken. |
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85 | - disable fork tests on !linux, as only linux supports mixing |
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86 | pthread and fork in perl. |
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87 | - document the fact that fork doesn't work anymore when using |
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88 | this module, on anything !GNU/Linux. |
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89 | - increase timeout in t/04_fork.t, as too many CPAN-tester setups |
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90 | run on a 0.1MHz cpu. Or so. |
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91 | |
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92 | 3.9 Fri May 27 02:43:47 CEST 2011 |
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93 | - (libeio) fix memory corruption in aio_readdirx for the flags |
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94 | combination READDIR_STAT_ORDER | READDIR_DIRS_FIRST. |
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95 | - add lots of newer POSIX and GNU/Linux-specific open |
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96 | flags. |
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97 | |
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98 | 3.8 Sun Mar 27 12:25:33 CEST 2011 |
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99 | - use nonstandard but maybe-working-on-bsd fork technique. |
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100 | - support a max_idle value of 0. |
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101 | - support setting of idle timeout value (IO::AIO::idle_timeout). |
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102 | |
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103 | 3.72 Fri Feb 11 04:25:38 CET 2011 |
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104 | - use _POSIX_MEMLOCK_RANGE to detect mlock/munlock. |
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105 | - aio_mknod always used a dev_t value of 0. |
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106 | - new treescan option: --grep. |
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107 | - add more S_IF macros, and major/minor/makedev "macros". |
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108 | |
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109 | 3.71 Thu Dec 30 08:18:46 CET 2010 |
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110 | - the numerical result value passed to callbacks did not stringify |
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111 | correctly, due to internal reuse and failure to reset the sv flags. |
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112 | - actually test for posix_[mf]advise, as at least uClibc defines |
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113 | _POSIX_ADVISORY_INFO without actually having any of the required |
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114 | funcitonality. ugh. |
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115 | |
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116 | 3.7 Mon Nov 1 23:00:34 CET 2010 |
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117 | - implement/add madvise, mmap, munmap, aio_mlockall, munlockall, |
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118 | aio_mlock, munlock, msync and mtouch to @EXPORT_OK. |
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119 | - document the sad state of affairs w.r.t. pthread on many bsds. |
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120 | - do not enable mmap on systems without _POSIX_MAPPED_FILES |
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121 | (openbsd 4.8). |
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122 | - do not leak memory in IO::AIO::mmap when the scalar already |
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123 | had string-data. |
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124 | - add O_RDWR, O_APPEND and O_EXCL symbols and semi-document |
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125 | them. |
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126 | - cache the result IV, for a minor speedup in the common case. |
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127 | - croak when an mmapped-scalar changes location, to detect |
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128 | user-errors better. |
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129 | - fix aio_readlink prototype. |
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130 | |
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131 | 3.65 Wed Mar 31 02:45:05 CEST 2010 |
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132 | - actually use PATH_MAX instead of NAME_MAX for readlink, as to not |
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133 | cut off long pathnames in aio_readlink (based on patch by |
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134 | Rasmus Andersson). |
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135 | - a double fork partially killed the event pipe (great testcase |
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136 | by dormando). affects IO::AIO, BDB and Async::Interrupt. |
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137 | - suck steve's dick and rename our symbols to avoid colliding |
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138 | with nonstandard identifier spam on the broken os x pseudo-os. |
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139 | affects IO::AIO and BDB. |
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140 | |
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141 | 3.6 Mon Jan 11 00:43:39 CET 2010 |
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142 | - (libeio) more fixes for the freebsd/apple sendfile - broken by |
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143 | manpage standards, but apparently correct accoridng to actual |
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144 | kernel sources. |
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145 | - add IO::AIO::mmap/munmap support. |
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146 | - add IO::AIO::m(un)lockall support. |
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147 | - clean up manpage. |
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148 | |
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149 | 3.5 Thu Jan 7 21:25:04 CET 2010 |
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150 | - (liebio) fix freebsd sendfile (Vanilla Hsu). |
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151 | - (libeio) also fix darwin sendfile that suffered from a similar bug. |
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152 | - add aio_statvfs as interface to statvfs/fstatvfs. |
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153 | - work around buggy symlink() on cygwin in the testsuite. |
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154 | - wtf. freebsd-8.0 actually passes the testsuite! I knew |
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155 | they could implement fork and semaphores one day! cheers! |
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156 | |
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157 | 3.4 Sat Jan 2 15:13:04 CET 2010 |
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158 | - (libeio) max_poll_time was not properly converted to ticks. |
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159 | - clarify cancel_subs description. |
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160 | - IO::AIO::sendfile did not actually return the return value |
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161 | from the sendfile call. |
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162 | - implement aio_msync, aio_mtouch. |
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163 | - (libeio) tentatively support darwin in sendfile. |
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164 | |
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165 | 3.31 Thu Nov 12 02:14:29 CET 2009 |
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166 | - fix result status documentation of aio_copy, aio_move. |
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167 | - speed up object creation considerably by avoiding |
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168 | hash lookups. |
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169 | |
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170 | 3.3 Wed Aug 5 13:52:58 CEST 2009 |
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171 | - use common::sense. |
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172 | - use common schmorp.h header. |
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173 | - allow integers (file descriptors) in addition to file handles. |
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174 | - take advantage of linux' eventfd (but it seems slower on smp?). |
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175 | - use poll not select on posix platforms. |
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176 | |
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177 | 3.261 Wed Jul 1 10:11:51 CEST 2009 |
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178 | - more 0S X workarounds (patch by Tokuhiro Matsuno). |
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179 | |
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180 | 3.26 Tue Jun 30 09:33:26 CEST 2009 |
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181 | - 0S X of course claims to be posix 2008 but lacks posix_fadvise. |
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182 | try to work around this horribly broken OS in a somewhat hackish |
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183 | way. might help other os's too. |
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184 | |
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185 | 3.25 Sat Jun 27 05:18:26 CEST 2009 |
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186 | - added IO::AIO::fadvise and IO::AIO::sendfile. |
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187 | - (libeio) replaced quicksort+insertion sort by a tuned radix |
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188 | sort + insertion sort, resulting in comparable runtime (usually |
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189 | faster) to the old version, but without any ill side effects on |
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190 | degenerated (for quicksort) data. |
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191 | - (libeio) correctly sort dirs by inodes if we have perfect type |
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192 | knowledge and DIRS_FIRST is used. |
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193 | - (libeio) internally the wrong DT_* constants were used, but no |
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194 | known system has differing EIO_DT_*/DT_* values, so not an issue. |
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195 | - removed a (harmless) assert that was left over on the code |
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196 | but should not have been. |
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197 | - use more correct types (change IO length from IV to VAL64, |
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198 | which makes a difference on systems without 64 bit perls). |
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199 | |
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200 | 3.23 Sat Jun 13 16:57:58 CEST 2009 |
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201 | - fix off-by-one bug in aio_readdir that was introduced in the |
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202 | rushed 3.22 release. |
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203 | |
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204 | 3.22 Sat Jun 13 15:32:40 CEST 2009 |
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205 | - speed up readdirx sort algorithm slightly. |
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206 | - bin/treescan was missing from distro tarball. |
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207 | |
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208 | 3.21 Fri Jun 12 18:45:53 CEST 2009 |
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209 | - new options --dirs and --files for treescan. |
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210 | - install bin/treescan by default. |
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211 | - (libeio) aio_readdir can now be cancelled while executing. |
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212 | - fix a printf format string for 64 bit systems (could lead |
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213 | to problems on big endian 64 bit systems). |
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214 | - do not use qsort() but our own algorithm: glibc initialises |
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215 | the whole locale and I/O subsystem inside qsort, causing |
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216 | a stack overflow on 32 bit machines. The new sort uses much less |
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217 | stack and is more than twice as fast in typical situations. |
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218 | |
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219 | 3.2 Sun Jun 7 20:30:05 CEST 2009 |
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220 | - (libeio) pwrite emulation was even more flawed than intended and did |
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221 | not restore the file offset. |
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222 | - add aio_readdirx, which can return inode and filetype and sort |
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223 | the names in various ways. |
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224 | - unfortunately, utime, chmod, chown on an open file that has just |
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225 | been written can easily block, which caused aio_copy to block the |
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226 | process. no more! |
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227 | - no longer rely on dst path in aio_copy when futime is available. |
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228 | |
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229 | 3.19 Tue Apr 21 22:05:21 CEST 2009 |
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230 | - more perl 5.10 workarounds for aio_read and write. |
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231 | - aio_write no longer modifies the sv (if possible). |
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232 | - aio_read now works correctly with magic values. |
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233 | |
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234 | 3.18 Sun Apr 19 21:17:32 CEST 2009 |
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235 | - better diagnostics when some aio_* functions get passed an illegal fh. |
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236 | - try to avoid crashes due to incompatible 5.10 API changes. grmbl. |
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237 | |
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238 | 3.17 Thu Nov 20 08:45:36 CET 2008 |
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239 | - (libeio) added aio_sync_file_range (untested). |
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240 | - add aio_busy to @IO::AIO::AIO_REQ. |
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241 | |
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242 | 3.16 Wed Oct 22 18:28:01 CEST 2008 |
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243 | - use SvREFCNT_inc instead of SvREFCNT_inc_NN in a non-speed critical |
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244 | part to improve portability to perl 5.8 (reported by szymon). |
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245 | |
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246 | 3.15 Mon Oct 13 00:39:55 CEST 2008 |
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247 | - automatic removal of feeders was broken. |
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248 | - (libeio) use a more robust method to detect whether a feeder |
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249 | has added something to the group or not. |
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250 | |
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251 | 3.1 Thu Oct 2 13:34:40 CEST 2008 |
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252 | - pre-deref the passed callback object, for increased speed |
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253 | and decreased memory usage. |
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254 | - call on_next_submit callback even for aio_group - impact unknown, |
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255 | but seems more correct. |
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256 | - $req->cb now returns the original callback. |
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257 | - (libeio) pass EIO_GROUP/aio_group requests through the queue without |
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258 | requiring a thread switch. |
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259 | - (libeio) status code of aio_futime and aio_utime was always passed 0. |
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260 | - do some other ยต-optimisations. |
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261 | |
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262 | 3.07 Sat Aug 2 16:06:13 CEST 2008 |
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263 | - do not include LIBS in autoconf tests. |
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264 | |
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265 | 3.06 Tue Jul 15 12:41:32 CEST 2008 |
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266 | - move preadwritelock definition before it's first reference, |
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267 | to make it compile again on broken platforms (they still exist) |
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268 | or badly cofngiured perls (redhat...), reported by Rob Bloodgood. |
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269 | |
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270 | 3.05 Thu Jun 19 23:23:52 CEST 2008 |
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271 | - work around perl overriding readdir etc. with thread-unsafe |
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272 | (sic!) versions. |
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273 | |
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274 | 3.04 Wed Jun 18 01:35:38 CEST 2008 |
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275 | - (libeio) fix eio_mknod, which confused it's arguments. |
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276 | - (libeio) do not use readdir_r, as Ulrich Drepper pointed out that this |
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277 | is stupid. |
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278 | - (libeio) fix eio__readahead prototype, patch by Jost Krieger. |
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279 | - (libeio) fix a bug that could potentially cause IO::AIO |
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280 | not to get initialised properly. |
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281 | |
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282 | 3.03 Thu May 29 05:33:30 CEST 2008 |
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283 | - (libeio) correctly call pthread_attr_destroy (). |
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284 | - (libeio) work around broken bsd headers once more. |
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285 | - reduce shared library size again by not including wrappers. |
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286 | - max_outstanding could cause poll to enter a busy-waiting loop. |
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287 | - document the new IO::AIO::poll_cb result value. |
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288 | |
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289 | 3.02 Mon May 12 02:32:02 CEST 2008 |
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290 | - fix a memory leak on aio_readlink. |
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291 | - bring back working fchmod. |
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292 | - nop and busy now set result to 0. |
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293 | - set errno to ENOMEM when allocation fails. |
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294 | |
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295 | 3.01 Sun May 11 03:07:03 CEST 2008 |
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296 | - (libeio) make it compile on systems without readahead or readdir_r. |
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297 | - (libeio) improve configure check for readahead availability. |
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298 | - do not try to link against -lrt. |
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299 | - use a separate configure script for IO::AIO (not the libeio one). |
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300 | |
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301 | 3.0 Sun May 11 00:57:14 CEST 2008 |
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302 | - added bin/treescan to the distribution. |
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303 | - switched to using libeio. |
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304 | - LOTS OF INCOMPATIBLE CHANGES: |
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305 | - remove signal functionality, it is not worth the effort. |
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306 | - max_outstanding no longer returns the previous number of requests. |
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307 | - poll_cb no longer returns number of requests. |
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308 | |
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309 | 2.62 Sat Apr 26 13:59:33 CEST 2008 |
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310 | - port to solaris perls configured for old posix |
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311 | (analysed by Jost Krieger). |
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312 | - keep a reference to the perl filehandle object in aio_close, |
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313 | so it doesn't get closed prematurely, leading to ugly races. |
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314 | |
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315 | 2.61 Wed Apr 16 18:45:02 CEST 2008 |
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316 | - fix treescan output duplication and improve output ordering. |
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317 | also display files given on the commandline. |
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318 | - use a different algorithm for aio_close that is faster |
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319 | and probably has even lower chances of blocking. |
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320 | - do our own stack memory management for threads - linux |
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321 | allocates outrageous amounts of VM (not so bad unless you |
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322 | use mlockall...), which severely limits the number of threads |
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323 | on 32-bit arches: stack size is the larger of PTHREAD_STACK_MIN |
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324 | and 4096 * sizeof (long) (usually this is 16..64k). |
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325 | |
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326 | 2.6 Sun Mar 30 08:28:11 CEST 2008 |
| 10 | - added aio_sync. |
327 | - added aio_sync. |
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328 | - added aio_pathsync. |
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329 | - fix prototypes of (void) functions. |
| 11 | |
330 | |
| 12 | 2.51 Sat Oct 6 16:04:54 CEST 2007 |
331 | 2.51 Sat Oct 6 16:04:54 CEST 2007 |
| 13 | - perlio isn't generally threadsafe, so aio_close could not work reliably. |
332 | - perlio isn't generally threadsafe, so aio_close could not work reliably. |
| 14 | aio_close now tries a safe hack that might not be that asynchronous |
333 | aio_close now tries a safe hack that might not be that asynchronous |
| 15 | (see the manpage for details). |
334 | (see the manpage for details). |
