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Comparing IO-AIO/Changes (file contents):
Revision 1.126 by root, Sun Jun 3 09:44:17 2007 UTC vs.
Revision 1.193 by root, Sat Jun 13 14:58:33 2009 UTC

1Revision history for IO::AIO 1Revision history for IO::AIO
2 2
3TODO: better autoconf.pm that can return LIBS etc. 3TODO: better autoconf.pm that can return LIBS etc.
4TODO: aio_cptree/mvtree 4TODO: aio_cptree/mvtree
5TODO: reduce condvar fairness: schedule hot-cache-threads first? 5TODO: reduce condvar fairness: schedule hot-cache-threads first?
6TODO: fix setsig
7TODO: splice/tee/vmsplice/sync_file_range? (http://kerneltrap.org/node/6505 http://lwn.net/Articles/178199/) 6TODO: splice/tee/vmsplice? (http://kerneltrap.org/node/6505 http://lwn.net/Articles/178199/)
7TODO: aio_fcntl, at least for file-locking
8 8
92.4 93.23 Sat Jun 13 16:57:58 CEST 2009
10 - fix aio_busy w.r.t. fractional delays. 10 - fix off-by-one bug in aio_readdir that was introduced in the
11 - add aio_chmod, aio_chown, aio_utime (linux successfully demonstrated 11 rushed 3.22 release.
12
133.22 Sat Jun 13 15:32:40 CEST 2009
14 - speed up readdirx sort algorithm slightly.
15 - bin/treescan was missing from distro tarball.
16
173.21 Fri Jun 12 18:45:53 CEST 2009
18 - new options --dirs and --files for treescan.
19 - install bin/treescan by default.
20 - (libeio) aio_readdir can now be cancelled while executing.
21 - fix a printf format string for 64 bit systems (could lead
22 to problems on big endian 64 bit systems).
23 - do not use qsort() but our own algorithm: glibc initialises
24 the whole locale and I/O subsystem inside qsort, causing
25 a stack overflow on 32 bit machines. The new sort uses much less
26 stack and is more than twice as fast in typical situations.
27
283.2 Sun Jun 7 20:30:05 CEST 2009
29 - (libeio) pwrite emulation was even more flawed than intended and did
30 not restore the file offset.
31 - add aio_readdirx, which can return inode and filetype and sort
32 the names in various ways.
33 - unfortunately, utime, chmod, chown on an open file that has just
34 been written can easily block, which caused aio_copy to block the
35 process. no more!
36 - no longer rely on dst path in aio_copy when futime is available.
37
383.19 Tue Apr 21 22:05:21 CEST 2009
39 - more perl 5.10 workarounds for aio_read and write.
40 - aio_write no longer modifies the sv (if possible).
41 - aio_read now works correctly with magic values.
42
433.18 Sun Apr 19 21:17:32 CEST 2009
44 - better diagnostics when some aio_* functions get passed an illegal fh.
45 - try to avoid crashes due to incompatible 5.10 API changes. grmbl.
46
473.17 Thu Nov 20 08:45:36 CET 2008
48 - (libeio) added aio_sync_file_range (untested).
49 - add aio_busy to @IO::AIO::AIO_REQ.
50
513.16 Wed Oct 22 18:28:01 CEST 2008
52 - use SvREFCNT_inc instead of SvREFCNT_inc_NN in a non-speed critical
53 part to improve portability to perl 5.8 (reported by szymon).
54
553.15 Mon Oct 13 00:39:55 CEST 2008
56 - automatic removal of feeders was broken.
57 - (libeio) use a more robust method to detect whether a feeder
58 has added something to the group or not.
59
603.1 Thu Oct 2 13:34:40 CEST 2008
61 - pre-deref the passed callback object, for increased speed
62 and decreased memory usage.
63 - call on_next_submit callback even for aio_group - impact unknown,
64 but seems more correct.
65 - $req->cb now returns the original callback.
66 - (libeio) pass EIO_GROUP/aio_group requests through the queue without
67 requiring a thread switch.
68 - (libeio) status code of aio_futime and aio_utime was always passed 0.
69 - do some other ยต-optimisations.
70
713.07 Sat Aug 2 16:06:13 CEST 2008
72 - do not include LIBS in autoconf tests.
73
743.06 Tue Jul 15 12:41:32 CEST 2008
75 - move preadwritelock definition before it's first reference,
76 to make it compile again on broken platforms (they still exist)
77 or badly cofngiured perls (redhat...), reported by Rob Bloodgood.
78
793.05 Thu Jun 19 23:23:52 CEST 2008
80 - work around perl overriding readdir etc. with thread-unsafe
81 (sic!) versions.
82
833.04 Wed Jun 18 01:35:38 CEST 2008
84 - (libeio) fix eio_mknod, which confused it's arguments.
85 - (libeio) do not use readdir_r, as Ulrich Drepper pointed out that this
86 is stupid.
87 - (libeio) fix eio__readahead prototype, patch by Jost Krieger.
88 - (libeio) fix a bug that could potentially cause IO::AIO
89 not to get initialised properly.
90
913.03 Thu May 29 05:33:30 CEST 2008
92 - (libeio) correctly call pthread_attr_destroy ().
93 - (libeio) work around broken bsd headers once more.
94 - reduce shared library size again by not including wrappers.
95 - max_outstanding could cause poll to enter a busy-waiting loop.
96 - document the new IO::AIO::poll_cb result value.
97
983.02 Mon May 12 02:32:02 CEST 2008
99 - fix a memory leak on aio_readlink.
100 - bring back working fchmod.
101 - nop and busy now set result to 0.
102 - set errno to ENOMEM when allocation fails.
103
1043.01 Sun May 11 03:07:03 CEST 2008
105 - (libeio) make it compile on systems without readahead or readdir_r.
106 - (libeio) improve configure check for readahead availability.
107 - do not try to link against -lrt.
108 - use a separate configure script for IO::AIO (not the libeio one).
109
1103.0 Sun May 11 00:57:14 CEST 2008
111 - added bin/treescan to the distribution.
112 - switched to using libeio.
113 - LOTS OF INCOMPATIBLE CHANGES:
114 - remove signal functionality, it is not worth the effort.
115 - max_outstanding no longer returns the previous number of requests.
116 - poll_cb no longer returns number of requests.
117
1182.62 Sat Apr 26 13:59:33 CEST 2008
119 - port to solaris perls configured for old posix
120 (analysed by Jost Krieger).
121 - keep a reference to the perl filehandle object in aio_close,
122 so it doesn't get closed prematurely, leading to ugly races.
123
1242.61 Wed Apr 16 18:45:02 CEST 2008
125 - fix treescan output duplication and improve output ordering.
126 also display files given on the commandline.
127 - use a different algorithm for aio_close that is faster
128 and probably has even lower chances of blocking.
129 - do our own stack memory management for threads - linux
130 allocates outrageous amounts of VM (not so bad unless you
131 use mlockall...), which severely limits the number of threads
132 on 32-bit arches: stack size is the larger of PTHREAD_STACK_MIN
133 and 4096 * sizeof (long) (usually this is 16..64k).
134
1352.6 Sun Mar 30 08:28:11 CEST 2008
136 - added aio_sync.
137 - added aio_pathsync.
138 - fix prototypes of (void) functions.
139
1402.51 Sat Oct 6 16:04:54 CEST 2007
141 - perlio isn't generally threadsafe, so aio_close could not work reliably.
142 aio_close now tries a safe hack that might not be that asynchronous
143 (see the manpage for details).
144 - discard callback return values as to not grow the stack endlessly
145 when poll_cb handles many requests without returning.
146 - minor code cleanups.
147
1482.5 Thu Oct 4 14:49:08 CEST 2007
149 - replaced _fd2fh with faster xs code.
150 - aio_close will now try to do "the right thing" and thus might
151 work sensibly for the very first time.
152
1532.41 Mon Sep 24 21:28:21 CEST 2007
154 - after fork, invest some work to make sure that the poll_fileno
155 stays stable (by dup2'ing the new fd over the old one), to make
156 it easier for programs/libs that don't control their forking
157 behaviour and cannot recreate their watchers.
158
1592.4 Sun Aug 5 18:44:22 CEST 2007
160 - add aio_truncate, aio_chmod, aio_chown, aio_utime (linux
12 that you can block on futimes...). 161 successfully demonstrated that you can block on futimes...).
13 - allow undef as fileoffset for aio_read/write and use read/write(2) 162 - allow undef as fileoffset for aio_read/write and use read/write(2)
14 internally (useful for sockets or O_APPEND handles). 163 internally (useful for sockets or O_APPEND handles).
15 - allow undef for length in aio_write. 164 - allow undef for length in aio_write.
16 - negative dataoffsets work as expected now in aio_read/aio_write. 165 - negative dataoffsets work as expected now in aio_read/aio_write.
17 - use NV instead of UV for 32 bit perls and file offsets, as NVs 166 - use NV instead of UV for 32 bit perls and file offsets, as NVs
18 have a larger range then. 167 have a larger range then.
19 - shared code between BDB and IO::AIO. 168 - shared code between BDB and IO::AIO.
169 - aio_busy was completely broken. now fixed.
170 - readahead emulation now returns something.
20 - correctly set errno to ENOSYS on unimplemented functions 171 - correctly set errno to ENOSYS on unimplemented functions
21 (should never happen, though). 172 (should never happen, though).
173 - large changes to make it partially compile and run on win32,
174 but win32 lacks too much functionality, and perl overrides way
175 too many functions with crashing versions.
22 176
232.33 Tue Jan 23 23:55:41 CET 2007 1772.33 Tue Jan 23 23:55:41 CET 2007
24 - fix install path (Andreas J. Koenig). 178 - fix install path (Andreas J. Koenig).
25 179
262.32 Mon Jan 22 16:56:23 CET 2007 1802.32 Mon Jan 22 16:56:23 CET 2007

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