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Comparing IO-AIO/Changes (file contents):
Revision 1.128 by root, Sun Aug 5 16:45:54 2007 UTC vs.
Revision 1.192 by root, Sat Jun 13 13:33:00 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
93.22 Sat Jun 13 15:32:40 CEST 2009
10 - speed up readdirx sort algorithm slightly.
11 - bin/treescan was missing from distro tarball.
12
133.21 Fri Jun 12 18:45:53 CEST 2009
14 - new options --dirs and --files for treescan.
15 - install bin/treescan by default.
16 - (libeio) aio_readdir can now be cancelled while executing.
17 - fix a printf format string for 64 bit systems (could lead
18 to problems on big endian 64 bit systems).
19 - do not use qsort() but our own algorithm: glibc initialises
20 the whole locale and I/O subsystem inside qsort, causing
21 a stack overflow on 32 bit machines. The new sort uses much less
22 stack and is more than twice as fast in typical situations.
23
243.2 Sun Jun 7 20:30:05 CEST 2009
25 - (libeio) pwrite emulation was even more flawed than intended and did
26 not restore the file offset.
27 - add aio_readdirx, which can return inode and filetype and sort
28 the names in various ways.
29 - unfortunately, utime, chmod, chown on an open file that has just
30 been written can easily block, which caused aio_copy to block the
31 process. no more!
32 - no longer rely on dst path in aio_copy when futime is available.
33
343.19 Tue Apr 21 22:05:21 CEST 2009
35 - more perl 5.10 workarounds for aio_read and write.
36 - aio_write no longer modifies the sv (if possible).
37 - aio_read now works correctly with magic values.
38
393.18 Sun Apr 19 21:17:32 CEST 2009
40 - better diagnostics when some aio_* functions get passed an illegal fh.
41 - try to avoid crashes due to incompatible 5.10 API changes. grmbl.
42
433.17 Thu Nov 20 08:45:36 CET 2008
44 - (libeio) added aio_sync_file_range (untested).
45 - add aio_busy to @IO::AIO::AIO_REQ.
46
473.16 Wed Oct 22 18:28:01 CEST 2008
48 - use SvREFCNT_inc instead of SvREFCNT_inc_NN in a non-speed critical
49 part to improve portability to perl 5.8 (reported by szymon).
50
513.15 Mon Oct 13 00:39:55 CEST 2008
52 - automatic removal of feeders was broken.
53 - (libeio) use a more robust method to detect whether a feeder
54 has added something to the group or not.
55
563.1 Thu Oct 2 13:34:40 CEST 2008
57 - pre-deref the passed callback object, for increased speed
58 and decreased memory usage.
59 - call on_next_submit callback even for aio_group - impact unknown,
60 but seems more correct.
61 - $req->cb now returns the original callback.
62 - (libeio) pass EIO_GROUP/aio_group requests through the queue without
63 requiring a thread switch.
64 - (libeio) status code of aio_futime and aio_utime was always passed 0.
65 - do some other ยต-optimisations.
66
673.07 Sat Aug 2 16:06:13 CEST 2008
68 - do not include LIBS in autoconf tests.
69
703.06 Tue Jul 15 12:41:32 CEST 2008
71 - move preadwritelock definition before it's first reference,
72 to make it compile again on broken platforms (they still exist)
73 or badly cofngiured perls (redhat...), reported by Rob Bloodgood.
74
753.05 Thu Jun 19 23:23:52 CEST 2008
76 - work around perl overriding readdir etc. with thread-unsafe
77 (sic!) versions.
78
793.04 Wed Jun 18 01:35:38 CEST 2008
80 - (libeio) fix eio_mknod, which confused it's arguments.
81 - (libeio) do not use readdir_r, as Ulrich Drepper pointed out that this
82 is stupid.
83 - (libeio) fix eio__readahead prototype, patch by Jost Krieger.
84 - (libeio) fix a bug that could potentially cause IO::AIO
85 not to get initialised properly.
86
873.03 Thu May 29 05:33:30 CEST 2008
88 - (libeio) correctly call pthread_attr_destroy ().
89 - (libeio) work around broken bsd headers once more.
90 - reduce shared library size again by not including wrappers.
91 - max_outstanding could cause poll to enter a busy-waiting loop.
92 - document the new IO::AIO::poll_cb result value.
93
943.02 Mon May 12 02:32:02 CEST 2008
95 - fix a memory leak on aio_readlink.
96 - bring back working fchmod.
97 - nop and busy now set result to 0.
98 - set errno to ENOMEM when allocation fails.
99
1003.01 Sun May 11 03:07:03 CEST 2008
101 - (libeio) make it compile on systems without readahead or readdir_r.
102 - (libeio) improve configure check for readahead availability.
103 - do not try to link against -lrt.
104 - use a separate configure script for IO::AIO (not the libeio one).
105
1063.0 Sun May 11 00:57:14 CEST 2008
107 - added bin/treescan to the distribution.
108 - switched to using libeio.
109 - LOTS OF INCOMPATIBLE CHANGES:
110 - remove signal functionality, it is not worth the effort.
111 - max_outstanding no longer returns the previous number of requests.
112 - poll_cb no longer returns number of requests.
113
1142.62 Sat Apr 26 13:59:33 CEST 2008
115 - port to solaris perls configured for old posix
116 (analysed by Jost Krieger).
117 - keep a reference to the perl filehandle object in aio_close,
118 so it doesn't get closed prematurely, leading to ugly races.
119
1202.61 Wed Apr 16 18:45:02 CEST 2008
121 - fix treescan output duplication and improve output ordering.
122 also display files given on the commandline.
123 - use a different algorithm for aio_close that is faster
124 and probably has even lower chances of blocking.
125 - do our own stack memory management for threads - linux
126 allocates outrageous amounts of VM (not so bad unless you
127 use mlockall...), which severely limits the number of threads
128 on 32-bit arches: stack size is the larger of PTHREAD_STACK_MIN
129 and 4096 * sizeof (long) (usually this is 16..64k).
130
1312.6 Sun Mar 30 08:28:11 CEST 2008
132 - added aio_sync.
133 - added aio_pathsync.
134 - fix prototypes of (void) functions.
135
1362.51 Sat Oct 6 16:04:54 CEST 2007
137 - perlio isn't generally threadsafe, so aio_close could not work reliably.
138 aio_close now tries a safe hack that might not be that asynchronous
139 (see the manpage for details).
140 - discard callback return values as to not grow the stack endlessly
141 when poll_cb handles many requests without returning.
142 - minor code cleanups.
143
1442.5 Thu Oct 4 14:49:08 CEST 2007
145 - replaced _fd2fh with faster xs code.
146 - aio_close will now try to do "the right thing" and thus might
147 work sensibly for the very first time.
148
1492.41 Mon Sep 24 21:28:21 CEST 2007
150 - after fork, invest some work to make sure that the poll_fileno
151 stays stable (by dup2'ing the new fd over the old one), to make
152 it easier for programs/libs that don't control their forking
153 behaviour and cannot recreate their watchers.
8 154
92.4 Sun Aug 5 18:44:22 CEST 2007 1552.4 Sun Aug 5 18:44:22 CEST 2007
10 - add aio_truncate, aio_chmod, aio_chown, aio_utime (linux 156 - add aio_truncate, aio_chmod, aio_chown, aio_utime (linux
11 successfully demonstrated that you can block on futimes...). 157 successfully demonstrated that you can block on futimes...).
12 - allow undef as fileoffset for aio_read/write and use read/write(2) 158 - allow undef as fileoffset for aio_read/write and use read/write(2)

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