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Comparing IO-AIO/Changes (file contents):
Revision 1.77 by root, Mon Oct 23 00:50:10 2006 UTC vs.
Revision 1.175 by root, Wed Oct 22 18:15:36 2008 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: use feeder for aio_scandir. 4TODO: aio_cptree/mvtree
5TODO: -lock/unlock, +callback/etc. 5TODO: reduce condvar fairness: schedule hot-cache-threads first?
6TODO: splice/tee/vmsplice/sync_file_range? (http://kerneltrap.org/node/6505 http://lwn.net/Articles/178199/)
7TODO: aio_fcntl, at least for file-locking
6 8
72.0 9 - added aio_sync_file_range.
10
113.16 Wed Oct 22 18:28:01 CEST 2008
12 - use SvREFCNT_inc instead of SvREFCNT_inc_NN in a non-speed critical
13 part to improve portability to perl 5.8 (reported by szymon).
14
153.15 Mon Oct 13 00:39:55 CEST 2008
16 - automatic removal of feeders was broken.
17 - (libeio) use a more robust method to detect whether a feeder
18 has added something to the group or not.
19
203.1 Thu Oct 2 13:34:40 CEST 2008
21 - pre-deref the passed callback object, for increased speed
22 and decreased memory usage.
23 - call on_next_submit callback even for aio_group - impact unknown,
24 but seems more correct.
25 - $req->cb now returns the original callback.
26 - (libeio) pass EIO_GROUP/aio_group requests through the queue without
27 requiring a thread switch.
28 - (libeio) status code of aio_futime and aio_utime was always passed 0.
29 - do some other ยต-optimisations.
30
313.07 Sat Aug 2 16:06:13 CEST 2008
32 - do not include LIBS in autoconf tests.
33
343.06 Tue Jul 15 12:41:32 CEST 2008
35 - move preadwritelock definition before it's first reference,
36 to make it compile again on broken platforms (they still exist)
37 or badly cofngiured perls (redhat...), reported by Rob Bloodgood.
38
393.05 Thu Jun 19 23:23:52 CEST 2008
40 - work around perl overriding readdir etc. with thread-unsafe
41 (sic!) versions.
42
433.04 Wed Jun 18 01:35:38 CEST 2008
44 - (libeio) fix eio_mknod, which confused it's arguments.
45 - (libeio) do not use readdir_r, as Ulrich Drepper pointed out that this
46 is stupid.
47 - (libeio) fix eio__readahead prototype, patch by Jost Krieger.
48 - (libeio) fix a bug that could potentially cause IO::AIO
49 not to get initialised properly.
50
513.03 Thu May 29 05:33:30 CEST 2008
52 - (libeio) correctly call pthread_attr_destroy ().
53 - (libeio) work around broken bsd headers once more.
54 - reduce shared library size again by not including wrappers.
55 - max_outstanding could cause poll to enter a busy-waiting loop.
56 - document the new IO::AIO::poll_cb result value.
57
583.02 Mon May 12 02:32:02 CEST 2008
59 - fix a memory leak on aio_readlink.
60 - bring back working fchmod.
61 - nop and busy now set result to 0.
62 - set errno to ENOMEM when allocation fails.
63
643.01 Sun May 11 03:07:03 CEST 2008
65 - (libeio) make it compile on systems without readahead or readdir_r.
66 - (libeio) improve configure check for readahead availability.
67 - do not try to link against -lrt.
68 - use a separate configure script for IO::AIO (not the libeio one).
69
703.0 Sun May 11 00:57:14 CEST 2008
71 - added bin/treescan to the distribution.
72 - switched to using libeio.
73 - LOTS OF INCOMPATIBLE CHANGES:
74 - remove signal functionality, it is not worth the effort.
75 - max_outstanding no longer returns the previous number of requests.
76 - poll_cb no longer returns number of requests.
77
782.62 Sat Apr 26 13:59:33 CEST 2008
79 - port to solaris perls configured for old posix
80 (analysed by Jost Krieger).
81 - keep a reference to the perl filehandle object in aio_close,
82 so it doesn't get closed prematurely, leading to ugly races.
83
842.61 Wed Apr 16 18:45:02 CEST 2008
85 - fix treescan output duplication and improve output ordering.
86 also display files given on the commandline.
87 - use a different algorithm for aio_close that is faster
88 and probably has even lower chances of blocking.
89 - do our own stack memory management for threads - linux
90 allocates outrageous amounts of VM (not so bad unless you
91 use mlockall...), which severely limits the number of threads
92 on 32-bit arches: stack size is the larger of PTHREAD_STACK_MIN
93 and 4096 * sizeof (long) (usually this is 16..64k).
94
952.6 Sun Mar 30 08:28:11 CEST 2008
96 - added aio_sync.
97 - added aio_pathsync.
98 - fix prototypes of (void) functions.
99
1002.51 Sat Oct 6 16:04:54 CEST 2007
101 - perlio isn't generally threadsafe, so aio_close could not work reliably.
102 aio_close now tries a safe hack that might not be that asynchronous
103 (see the manpage for details).
104 - discard callback return values as to not grow the stack endlessly
105 when poll_cb handles many requests without returning.
106 - minor code cleanups.
107
1082.5 Thu Oct 4 14:49:08 CEST 2007
109 - replaced _fd2fh with faster xs code.
110 - aio_close will now try to do "the right thing" and thus might
111 work sensibly for the very first time.
112
1132.41 Mon Sep 24 21:28:21 CEST 2007
114 - after fork, invest some work to make sure that the poll_fileno
115 stays stable (by dup2'ing the new fd over the old one), to make
116 it easier for programs/libs that don't control their forking
117 behaviour and cannot recreate their watchers.
118
1192.4 Sun Aug 5 18:44:22 CEST 2007
120 - add aio_truncate, aio_chmod, aio_chown, aio_utime (linux
121 successfully demonstrated that you can block on futimes...).
122 - allow undef as fileoffset for aio_read/write and use read/write(2)
123 internally (useful for sockets or O_APPEND handles).
124 - allow undef for length in aio_write.
125 - negative dataoffsets work as expected now in aio_read/aio_write.
126 - use NV instead of UV for 32 bit perls and file offsets, as NVs
127 have a larger range then.
128 - shared code between BDB and IO::AIO.
129 - aio_busy was completely broken. now fixed.
130 - readahead emulation now returns something.
131 - correctly set errno to ENOSYS on unimplemented functions
132 (should never happen, though).
133 - large changes to make it partially compile and run on win32,
134 but win32 lacks too much functionality, and perl overrides way
135 too many functions with crashing versions.
136
1372.33 Tue Jan 23 23:55:41 CET 2007
138 - fix install path (Andreas J. Koenig).
139
1402.32 Mon Jan 22 16:56:23 CET 2007
141 - added aio_rmtree.
142 - wow, aio_mkdir was missing.
143 - aio_load did return undef on error, not -1.
144 - use prefixexp not prefix in autoconf.pm
145 (suggested by ... rt.cpan.org unreachable).
146 - avoid installing autoconf.pm.
147
1482.31 Sat Jan 6 03:46:02 CET 2007
149 - added aio_load.
150
1512.3 Sat Dec 23 05:48:07 CET 2006
152 - fix off-by-one bug in aio_read, causing memory corruption
153 or crashes.
154
1552.21 Fri Dec 22 05:03:38 CET 2006
156 - minor doc updates.
157 - minor cleanups.
158 - IO::AIO::poll returns request count.
159 - undocumented and unfinished async-signal-reporting.
160
1612.2 Tue Oct 31 00:31:00 CET 2006
162 - minor doc updates.
163 - added aio_readlink.
164 - properly zero-terminate aio_read buffer.
165 - fix aio_read/write with nonzero dataoffset.
166 - reduced size of aio request structure.
167 - better diagnostics when pathnames etc. are not byte-encoded;
168 do not leak request in that case, either.
169
1702.1 Sun Oct 29 02:01:57 CET 2006
171 - INCOMPATIBLE CHANGE: replace IO::AIO::poll_some by
172 IO::AIO::max_poll_reqs and IO::AIO::max_poll_time.
173 - fix a bug in aio_move where it would fail everytime
174 it would have to copy files manually.
175 - doc updates.
176 - start threads only on (very low) demand.
177 - end superfluous threads automatically after 10s idling.
178 - add IO::AIO::max_idle to control this.
179 - some tuning applied to random places.
180 - add aio_mknod.
181
1822.0 Thu Oct 26 18:27:58 CEST 2006
183 - minor incompatibility: max_outstanding semantics have changed.
184 - major rewrite, consider all functionality EXPERIMENTAL.
8 - aio requests can be cancelled. 185 - aio requests can be cancelled.
186 - callbacks can be (re-)set later.
187 - aio requests can choose between 9 priorities.
9 - add aio_group: aio requests can be grouped. 188 - add aio_group: aio requests can be grouped
189 into composite requests.
10 - implement generator interface for groups. 190 - generator interface for groups.
191 - add IO::AIO::poll_some.
11 - major documentation improvements. 192 - major documentation improvements.
12 - very minor bugfixes. 193 - very minor bugfixes.
13 - add aio_nop for dummy requests. 194 - add aio_nop for dummy requests.
14 - add aio_sleep mainly for benchmarking and debugging. 195 - add aio_busy mainly for benchmarking and debugging.
15 - deprecated max_outstanding. 196 - use "fast" mutexes on linux.
197 - use dynamic (and larger) buffers instead of
198 putting them onto the stack.
199 - optimise x86 and amd64 a bit.
200 - better error checking when ENOMEM.
201 - hopefully fix mem and dirp leaks on fork.
202 - warn about broken perl malloc.
203 - compiles on cygwin (but pread is broken on cygwin
204 which is not detected by autoconf, so you have to
205 edit autoconf/config.h yourself to enable emulation).
16 206
171.8 Sat Jun 24 22:20:44 CEST 2006 2071.8 Sat Jun 24 22:20:44 CEST 2006
18 - add and/or document aio_rename, aio_link, aio_symlink and aio_move. 208 - add and/or document aio_rename, aio_link, aio_symlink and aio_move.
19 209
201.73 Wed Mar 1 22:49:32 CET 2006 2101.73 Wed Mar 1 22:49:32 CET 2006
… …
54 - somebody nagged about C89 compatibility, so this release should 244 - somebody nagged about C89 compatibility, so this release should
55 be C89 compatible, but no guarantees for future ones. 245 be C89 compatible, but no guarantees for future ones.
56 - abort when the configure script fails. 246 - abort when the configure script fails.
57 247
581.4 Wed Aug 17 08:07:27 CEST 2005 2481.4 Wed Aug 17 08:07:27 CEST 2005
59 - forget to recreate the pipe after forking, this could cause 249 - forgot to recreate the pipe after forking, this could cause
60 deadlocks. 250 deadlocks.
61 251
621.3 Wed Aug 17 07:25:54 CEST 2005 2521.3 Wed Aug 17 07:25:54 CEST 2005
63 - properly propagate exceptions from callbacks, instead of silently 253 - properly propagate exceptions from callbacks, instead of silently
64 eating them. 254 eating them.

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