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Comparing IO-AIO/Changes (file contents):
Revision 1.111 by root, Sat Dec 23 04:49:37 2006 UTC vs.
Revision 1.191 by root, Sat Jun 13 03:59:04 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/rmtree 4TODO: aio_cptree/mvtree
5TODO: aio_utime, aio_chmod, aio_chown? should simply stat/open first?
6TODO: reduce condvar fairness: schedule hot-cache-threads first? 5TODO: reduce condvar fairness: schedule hot-cache-threads first?
7TODO: fix setsig 6TODO: splice/tee/vmsplice? (http://kerneltrap.org/node/6505 http://lwn.net/Articles/178199/)
7TODO: aio_fcntl, at least for file-locking
8
9 - speed up readdirx sort algorithm slightly.
10
113.21 Fri Jun 12 18:45:53 CEST 2009
12 - new options --dirs and --files for treescan.
13 - install bin/treescan by default.
14 - (libeio) aio_readdir can now be cancelled while executing.
15 - fix a printf format string for 64 bit systems (could lead
16 to problems on big endian 64 bit systems).
17 - do not use qsort() but our own algorithm: glibc initialises
18 the whole locale and I/O subsystem inside qsort, causing
19 a stack overflow on 32 bit machines. The new sort uses much less
20 stack and is more than twice as fast in typical situations.
21
223.2 Sun Jun 7 20:30:05 CEST 2009
23 - (libeio) pwrite emulation was even more flawed than intended and did
24 not restore the file offset.
25 - add aio_readdirx, which can return inode and filetype and sort
26 the names in various ways.
27 - unfortunately, utime, chmod, chown on an open file that has just
28 been written can easily block, which caused aio_copy to block the
29 process. no more!
30 - no longer rely on dst path in aio_copy when futime is available.
31
323.19 Tue Apr 21 22:05:21 CEST 2009
33 - more perl 5.10 workarounds for aio_read and write.
34 - aio_write no longer modifies the sv (if possible).
35 - aio_read now works correctly with magic values.
36
373.18 Sun Apr 19 21:17:32 CEST 2009
38 - better diagnostics when some aio_* functions get passed an illegal fh.
39 - try to avoid crashes due to incompatible 5.10 API changes. grmbl.
40
413.17 Thu Nov 20 08:45:36 CET 2008
42 - (libeio) added aio_sync_file_range (untested).
43 - add aio_busy to @IO::AIO::AIO_REQ.
44
453.16 Wed Oct 22 18:28:01 CEST 2008
46 - use SvREFCNT_inc instead of SvREFCNT_inc_NN in a non-speed critical
47 part to improve portability to perl 5.8 (reported by szymon).
48
493.15 Mon Oct 13 00:39:55 CEST 2008
50 - automatic removal of feeders was broken.
51 - (libeio) use a more robust method to detect whether a feeder
52 has added something to the group or not.
53
543.1 Thu Oct 2 13:34:40 CEST 2008
55 - pre-deref the passed callback object, for increased speed
56 and decreased memory usage.
57 - call on_next_submit callback even for aio_group - impact unknown,
58 but seems more correct.
59 - $req->cb now returns the original callback.
60 - (libeio) pass EIO_GROUP/aio_group requests through the queue without
61 requiring a thread switch.
62 - (libeio) status code of aio_futime and aio_utime was always passed 0.
63 - do some other ยต-optimisations.
64
653.07 Sat Aug 2 16:06:13 CEST 2008
66 - do not include LIBS in autoconf tests.
67
683.06 Tue Jul 15 12:41:32 CEST 2008
69 - move preadwritelock definition before it's first reference,
70 to make it compile again on broken platforms (they still exist)
71 or badly cofngiured perls (redhat...), reported by Rob Bloodgood.
72
733.05 Thu Jun 19 23:23:52 CEST 2008
74 - work around perl overriding readdir etc. with thread-unsafe
75 (sic!) versions.
76
773.04 Wed Jun 18 01:35:38 CEST 2008
78 - (libeio) fix eio_mknod, which confused it's arguments.
79 - (libeio) do not use readdir_r, as Ulrich Drepper pointed out that this
80 is stupid.
81 - (libeio) fix eio__readahead prototype, patch by Jost Krieger.
82 - (libeio) fix a bug that could potentially cause IO::AIO
83 not to get initialised properly.
84
853.03 Thu May 29 05:33:30 CEST 2008
86 - (libeio) correctly call pthread_attr_destroy ().
87 - (libeio) work around broken bsd headers once more.
88 - reduce shared library size again by not including wrappers.
89 - max_outstanding could cause poll to enter a busy-waiting loop.
90 - document the new IO::AIO::poll_cb result value.
91
923.02 Mon May 12 02:32:02 CEST 2008
93 - fix a memory leak on aio_readlink.
94 - bring back working fchmod.
95 - nop and busy now set result to 0.
96 - set errno to ENOMEM when allocation fails.
97
983.01 Sun May 11 03:07:03 CEST 2008
99 - (libeio) make it compile on systems without readahead or readdir_r.
100 - (libeio) improve configure check for readahead availability.
101 - do not try to link against -lrt.
102 - use a separate configure script for IO::AIO (not the libeio one).
103
1043.0 Sun May 11 00:57:14 CEST 2008
105 - added bin/treescan to the distribution.
106 - switched to using libeio.
107 - LOTS OF INCOMPATIBLE CHANGES:
108 - remove signal functionality, it is not worth the effort.
109 - max_outstanding no longer returns the previous number of requests.
110 - poll_cb no longer returns number of requests.
111
1122.62 Sat Apr 26 13:59:33 CEST 2008
113 - port to solaris perls configured for old posix
114 (analysed by Jost Krieger).
115 - keep a reference to the perl filehandle object in aio_close,
116 so it doesn't get closed prematurely, leading to ugly races.
117
1182.61 Wed Apr 16 18:45:02 CEST 2008
119 - fix treescan output duplication and improve output ordering.
120 also display files given on the commandline.
121 - use a different algorithm for aio_close that is faster
122 and probably has even lower chances of blocking.
123 - do our own stack memory management for threads - linux
124 allocates outrageous amounts of VM (not so bad unless you
125 use mlockall...), which severely limits the number of threads
126 on 32-bit arches: stack size is the larger of PTHREAD_STACK_MIN
127 and 4096 * sizeof (long) (usually this is 16..64k).
128
1292.6 Sun Mar 30 08:28:11 CEST 2008
130 - added aio_sync.
131 - added aio_pathsync.
132 - fix prototypes of (void) functions.
133
1342.51 Sat Oct 6 16:04:54 CEST 2007
135 - perlio isn't generally threadsafe, so aio_close could not work reliably.
136 aio_close now tries a safe hack that might not be that asynchronous
137 (see the manpage for details).
138 - discard callback return values as to not grow the stack endlessly
139 when poll_cb handles many requests without returning.
140 - minor code cleanups.
141
1422.5 Thu Oct 4 14:49:08 CEST 2007
143 - replaced _fd2fh with faster xs code.
144 - aio_close will now try to do "the right thing" and thus might
145 work sensibly for the very first time.
146
1472.41 Mon Sep 24 21:28:21 CEST 2007
148 - after fork, invest some work to make sure that the poll_fileno
149 stays stable (by dup2'ing the new fd over the old one), to make
150 it easier for programs/libs that don't control their forking
151 behaviour and cannot recreate their watchers.
152
1532.4 Sun Aug 5 18:44:22 CEST 2007
154 - add aio_truncate, aio_chmod, aio_chown, aio_utime (linux
155 successfully demonstrated that you can block on futimes...).
156 - allow undef as fileoffset for aio_read/write and use read/write(2)
157 internally (useful for sockets or O_APPEND handles).
158 - allow undef for length in aio_write.
159 - negative dataoffsets work as expected now in aio_read/aio_write.
160 - use NV instead of UV for 32 bit perls and file offsets, as NVs
161 have a larger range then.
162 - shared code between BDB and IO::AIO.
163 - aio_busy was completely broken. now fixed.
164 - readahead emulation now returns something.
165 - correctly set errno to ENOSYS on unimplemented functions
166 (should never happen, though).
167 - large changes to make it partially compile and run on win32,
168 but win32 lacks too much functionality, and perl overrides way
169 too many functions with crashing versions.
170
1712.33 Tue Jan 23 23:55:41 CET 2007
172 - fix install path (Andreas J. Koenig).
173
1742.32 Mon Jan 22 16:56:23 CET 2007
175 - added aio_rmtree.
176 - wow, aio_mkdir was missing.
177 - aio_load did return undef on error, not -1.
178 - use prefixexp not prefix in autoconf.pm
179 (suggested by ... rt.cpan.org unreachable).
180 - avoid installing autoconf.pm.
181
1822.31 Sat Jan 6 03:46:02 CET 2007
183 - added aio_load.
8 184
92.3 Sat Dec 23 05:48:07 CET 2006 1852.3 Sat Dec 23 05:48:07 CET 2006
10 - fix off-by-one bug in aio_read, causing memory corruption 186 - fix off-by-one bug in aio_read, causing memory corruption
11 or crashes. 187 or crashes.
12 188

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