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Comparing IO-AIO/Changes (file contents):
Revision 1.105 by root, Tue Oct 31 00:32:19 2006 UTC vs.
Revision 1.186 by root, Sun Jun 7 18:31:18 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? 5TODO: reduce condvar fairness: schedule hot-cache-threads first?
6TODO: splice/tee/vmsplice? (http://kerneltrap.org/node/6505 http://lwn.net/Articles/178199/)
7TODO: aio_fcntl, at least for file-locking
8
93.2 Sun Jun 7 20:30:05 CEST 2009
10 - (libeio) pwrite emulation was even more flawed than intended and did
11 not restore the file offset.
12 - add aio_readdirx, which can return inode and filetype and sort
13 the names in various ways.
14 - unfortunately, utime, chmod, chown on an open file that has just
15 been written can easily block, which caused aio_copy to block the
16 process. no more!
17 - no longer rely on dst path in aio_copy when futime is available.
18
193.19 Tue Apr 21 22:05:21 CEST 2009
20 - more perl 5.10 workarounds for aio_read and write.
21 - aio_write no longer modifies the sv (if possible).
22 - aio_read now works correctly with magic values.
23
243.18 Sun Apr 19 21:17:32 CEST 2009
25 - better diagnostics when some aio_* functions get passed an illegal fh.
26 - try to avoid crashes due to incompatible 5.10 API changes. grmbl.
27
283.17 Thu Nov 20 08:45:36 CET 2008
29 - (libeio) added aio_sync_file_range (untested).
30 - add aio_busy to @IO::AIO::AIO_REQ.
31
323.16 Wed Oct 22 18:28:01 CEST 2008
33 - use SvREFCNT_inc instead of SvREFCNT_inc_NN in a non-speed critical
34 part to improve portability to perl 5.8 (reported by szymon).
35
363.15 Mon Oct 13 00:39:55 CEST 2008
37 - automatic removal of feeders was broken.
38 - (libeio) use a more robust method to detect whether a feeder
39 has added something to the group or not.
40
413.1 Thu Oct 2 13:34:40 CEST 2008
42 - pre-deref the passed callback object, for increased speed
43 and decreased memory usage.
44 - call on_next_submit callback even for aio_group - impact unknown,
45 but seems more correct.
46 - $req->cb now returns the original callback.
47 - (libeio) pass EIO_GROUP/aio_group requests through the queue without
48 requiring a thread switch.
49 - (libeio) status code of aio_futime and aio_utime was always passed 0.
50 - do some other ยต-optimisations.
51
523.07 Sat Aug 2 16:06:13 CEST 2008
53 - do not include LIBS in autoconf tests.
54
553.06 Tue Jul 15 12:41:32 CEST 2008
56 - move preadwritelock definition before it's first reference,
57 to make it compile again on broken platforms (they still exist)
58 or badly cofngiured perls (redhat...), reported by Rob Bloodgood.
59
603.05 Thu Jun 19 23:23:52 CEST 2008
61 - work around perl overriding readdir etc. with thread-unsafe
62 (sic!) versions.
63
643.04 Wed Jun 18 01:35:38 CEST 2008
65 - (libeio) fix eio_mknod, which confused it's arguments.
66 - (libeio) do not use readdir_r, as Ulrich Drepper pointed out that this
67 is stupid.
68 - (libeio) fix eio__readahead prototype, patch by Jost Krieger.
69 - (libeio) fix a bug that could potentially cause IO::AIO
70 not to get initialised properly.
71
723.03 Thu May 29 05:33:30 CEST 2008
73 - (libeio) correctly call pthread_attr_destroy ().
74 - (libeio) work around broken bsd headers once more.
75 - reduce shared library size again by not including wrappers.
76 - max_outstanding could cause poll to enter a busy-waiting loop.
77 - document the new IO::AIO::poll_cb result value.
78
793.02 Mon May 12 02:32:02 CEST 2008
80 - fix a memory leak on aio_readlink.
81 - bring back working fchmod.
82 - nop and busy now set result to 0.
83 - set errno to ENOMEM when allocation fails.
84
853.01 Sun May 11 03:07:03 CEST 2008
86 - (libeio) make it compile on systems without readahead or readdir_r.
87 - (libeio) improve configure check for readahead availability.
88 - do not try to link against -lrt.
89 - use a separate configure script for IO::AIO (not the libeio one).
90
913.0 Sun May 11 00:57:14 CEST 2008
92 - added bin/treescan to the distribution.
93 - switched to using libeio.
94 - LOTS OF INCOMPATIBLE CHANGES:
95 - remove signal functionality, it is not worth the effort.
96 - max_outstanding no longer returns the previous number of requests.
97 - poll_cb no longer returns number of requests.
98
992.62 Sat Apr 26 13:59:33 CEST 2008
100 - port to solaris perls configured for old posix
101 (analysed by Jost Krieger).
102 - keep a reference to the perl filehandle object in aio_close,
103 so it doesn't get closed prematurely, leading to ugly races.
104
1052.61 Wed Apr 16 18:45:02 CEST 2008
106 - fix treescan output duplication and improve output ordering.
107 also display files given on the commandline.
108 - use a different algorithm for aio_close that is faster
109 and probably has even lower chances of blocking.
110 - do our own stack memory management for threads - linux
111 allocates outrageous amounts of VM (not so bad unless you
112 use mlockall...), which severely limits the number of threads
113 on 32-bit arches: stack size is the larger of PTHREAD_STACK_MIN
114 and 4096 * sizeof (long) (usually this is 16..64k).
115
1162.6 Sun Mar 30 08:28:11 CEST 2008
117 - added aio_sync.
118 - added aio_pathsync.
119 - fix prototypes of (void) functions.
120
1212.51 Sat Oct 6 16:04:54 CEST 2007
122 - perlio isn't generally threadsafe, so aio_close could not work reliably.
123 aio_close now tries a safe hack that might not be that asynchronous
124 (see the manpage for details).
125 - discard callback return values as to not grow the stack endlessly
126 when poll_cb handles many requests without returning.
127 - minor code cleanups.
128
1292.5 Thu Oct 4 14:49:08 CEST 2007
130 - replaced _fd2fh with faster xs code.
131 - aio_close will now try to do "the right thing" and thus might
132 work sensibly for the very first time.
133
1342.41 Mon Sep 24 21:28:21 CEST 2007
135 - after fork, invest some work to make sure that the poll_fileno
136 stays stable (by dup2'ing the new fd over the old one), to make
137 it easier for programs/libs that don't control their forking
138 behaviour and cannot recreate their watchers.
139
1402.4 Sun Aug 5 18:44:22 CEST 2007
141 - add aio_truncate, aio_chmod, aio_chown, aio_utime (linux
142 successfully demonstrated that you can block on futimes...).
143 - allow undef as fileoffset for aio_read/write and use read/write(2)
144 internally (useful for sockets or O_APPEND handles).
145 - allow undef for length in aio_write.
146 - negative dataoffsets work as expected now in aio_read/aio_write.
147 - use NV instead of UV for 32 bit perls and file offsets, as NVs
148 have a larger range then.
149 - shared code between BDB and IO::AIO.
150 - aio_busy was completely broken. now fixed.
151 - readahead emulation now returns something.
152 - correctly set errno to ENOSYS on unimplemented functions
153 (should never happen, though).
154 - large changes to make it partially compile and run on win32,
155 but win32 lacks too much functionality, and perl overrides way
156 too many functions with crashing versions.
157
1582.33 Tue Jan 23 23:55:41 CET 2007
159 - fix install path (Andreas J. Koenig).
160
1612.32 Mon Jan 22 16:56:23 CET 2007
162 - added aio_rmtree.
163 - wow, aio_mkdir was missing.
164 - aio_load did return undef on error, not -1.
165 - use prefixexp not prefix in autoconf.pm
166 (suggested by ... rt.cpan.org unreachable).
167 - avoid installing autoconf.pm.
168
1692.31 Sat Jan 6 03:46:02 CET 2007
170 - added aio_load.
171
1722.3 Sat Dec 23 05:48:07 CET 2006
173 - fix off-by-one bug in aio_read, causing memory corruption
174 or crashes.
175
1762.21 Fri Dec 22 05:03:38 CET 2006
177 - minor doc updates.
178 - minor cleanups.
179 - IO::AIO::poll returns request count.
180 - undocumented and unfinished async-signal-reporting.
6 181
72.2 Tue Oct 31 00:31:00 CET 2006 1822.2 Tue Oct 31 00:31:00 CET 2006
8 - minor doc updates. 183 - minor doc updates.
9 - added aio_readlink. 184 - added aio_readlink.
10 - properly zero-terminate aio_read buffer. 185 - properly zero-terminate aio_read buffer.
11 - fix aio_read/write with nonzero dataoffset. 186 - fix aio_read/write with nonzero dataoffset.
12 - reduced size of aio request structure. 187 - reduced size of aio request structure.
13 - better diagnostics when pathnames etc. are unicode-encoded, 188 - better diagnostics when pathnames etc. are not byte-encoded;
14 do not leak request in that case, either. 189 do not leak request in that case, either.
15 190
162.1 Sun Oct 29 02:01:57 CET 2006 1912.1 Sun Oct 29 02:01:57 CET 2006
17 - INCOMPATIBLE CHANGE: replace IO::AIO::poll_some by 192 - INCOMPATIBLE CHANGE: replace IO::AIO::poll_some by
18 IO::AIO::max_poll_reqs and IO::AIO::max_poll_time. 193 IO::AIO::max_poll_reqs and IO::AIO::max_poll_time.

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