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Comparing IO-AIO/Changes (file contents):
Revision 1.64 by root, Mon Feb 6 23:55:48 2006 UTC vs.
Revision 1.215 by root, Thu Jan 7 18:08:21 2010 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
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
8TODO: fallocate, if it wouldn't be so useless.
9TODO: IO::AIO::mmap? aio_mincore?
4 10
51.73 11 - (liebio) fix freebsd sendfile (Vanilla Hsu).
6 - AIX isn't being helpful again, hardcode a value for NAME_MAX 12 - (libeio) also fix darwin sendfile that suffered from a similar bug.
13 - add aio_statvfs as interface to statvfs/fstatvfs.
14
153.4 Sat Jan 2 15:13:04 CET 2010
16 - (libeio) max_poll_time was not properly converted to ticks.
17 - clarify cancel_subs description.
18 - IO::AIO::sendfile did not actually return the return value
19 from the sendfile call.
20 - implement aio_msync, aio_mtouch.
21 - (libeio) tentatively support darwin in sendfile.
22
233.31 Thu Nov 12 02:14:29 CET 2009
24 - fix result status documentation of aio_copy, aio_move.
25 - speed up object creation considerably by avoiding
26 hash lookups.
27
283.3 Wed Aug 5 13:52:58 CEST 2009
29 - use common::sense.
30 - use common schmorp.h header.
31 - allow integers (file descriptors) in addition to file handles.
32 - take advantage of linux' eventfd (but it seems slower on smp?).
33 - use poll not select on posix platforms.
34
353.261 Wed Jul 1 10:11:51 CEST 2009
36 - more 0S X workarounds (patch by Tokuhiro Matsuno).
37
383.26 Tue Jun 30 09:33:26 CEST 2009
39 - 0S X of course claims to be posix 2008 but lacks posix_fadvise.
40 try to work around this horribly broken OS in a somewhat hackish
41 way. might help other os's too.
42
433.25 Sat Jun 27 05:18:26 CEST 2009
44 - added IO::AIO::fadvise and IO::AIO::sendfile.
45 - (libeio) replaced quicksort+insertion sort by a tuned radix
46 sort + insertion sort, resulting in comparable runtime (usually
47 faster) to the old version, but without any ill side effects on
48 degenerated (for quicksort) data.
49 - (libeio) correctly sort dirs by inodes if we have perfect type
50 knowledge and DIRS_FIRST is used.
51 - (libeio) internally the wrong DT_* constants were used, but no
52 known system has differing EIO_DT_*/DT_* values, so not an issue.
53 - removed a (harmless) assert that was left over on the code
54 but should not have been.
55 - use more correct types (change IO length from IV to VAL64,
56 which makes a difference on systems without 64 bit perls).
57
583.23 Sat Jun 13 16:57:58 CEST 2009
59 - fix off-by-one bug in aio_readdir that was introduced in the
60 rushed 3.22 release.
61
623.22 Sat Jun 13 15:32:40 CEST 2009
63 - speed up readdirx sort algorithm slightly.
64 - bin/treescan was missing from distro tarball.
65
663.21 Fri Jun 12 18:45:53 CEST 2009
67 - new options --dirs and --files for treescan.
68 - install bin/treescan by default.
69 - (libeio) aio_readdir can now be cancelled while executing.
70 - fix a printf format string for 64 bit systems (could lead
71 to problems on big endian 64 bit systems).
72 - do not use qsort() but our own algorithm: glibc initialises
73 the whole locale and I/O subsystem inside qsort, causing
74 a stack overflow on 32 bit machines. The new sort uses much less
75 stack and is more than twice as fast in typical situations.
76
773.2 Sun Jun 7 20:30:05 CEST 2009
78 - (libeio) pwrite emulation was even more flawed than intended and did
79 not restore the file offset.
80 - add aio_readdirx, which can return inode and filetype and sort
81 the names in various ways.
82 - unfortunately, utime, chmod, chown on an open file that has just
83 been written can easily block, which caused aio_copy to block the
84 process. no more!
85 - no longer rely on dst path in aio_copy when futime is available.
86
873.19 Tue Apr 21 22:05:21 CEST 2009
88 - more perl 5.10 workarounds for aio_read and write.
89 - aio_write no longer modifies the sv (if possible).
90 - aio_read now works correctly with magic values.
91
923.18 Sun Apr 19 21:17:32 CEST 2009
93 - better diagnostics when some aio_* functions get passed an illegal fh.
94 - try to avoid crashes due to incompatible 5.10 API changes. grmbl.
95
963.17 Thu Nov 20 08:45:36 CET 2008
97 - (libeio) added aio_sync_file_range (untested).
98 - add aio_busy to @IO::AIO::AIO_REQ.
99
1003.16 Wed Oct 22 18:28:01 CEST 2008
101 - use SvREFCNT_inc instead of SvREFCNT_inc_NN in a non-speed critical
102 part to improve portability to perl 5.8 (reported by szymon).
103
1043.15 Mon Oct 13 00:39:55 CEST 2008
105 - automatic removal of feeders was broken.
106 - (libeio) use a more robust method to detect whether a feeder
107 has added something to the group or not.
108
1093.1 Thu Oct 2 13:34:40 CEST 2008
110 - pre-deref the passed callback object, for increased speed
111 and decreased memory usage.
112 - call on_next_submit callback even for aio_group - impact unknown,
113 but seems more correct.
114 - $req->cb now returns the original callback.
115 - (libeio) pass EIO_GROUP/aio_group requests through the queue without
116 requiring a thread switch.
117 - (libeio) status code of aio_futime and aio_utime was always passed 0.
118 - do some other ยต-optimisations.
119
1203.07 Sat Aug 2 16:06:13 CEST 2008
121 - do not include LIBS in autoconf tests.
122
1233.06 Tue Jul 15 12:41:32 CEST 2008
124 - move preadwritelock definition before it's first reference,
125 to make it compile again on broken platforms (they still exist)
126 or badly cofngiured perls (redhat...), reported by Rob Bloodgood.
127
1283.05 Thu Jun 19 23:23:52 CEST 2008
129 - work around perl overriding readdir etc. with thread-unsafe
130 (sic!) versions.
131
1323.04 Wed Jun 18 01:35:38 CEST 2008
133 - (libeio) fix eio_mknod, which confused it's arguments.
134 - (libeio) do not use readdir_r, as Ulrich Drepper pointed out that this
135 is stupid.
136 - (libeio) fix eio__readahead prototype, patch by Jost Krieger.
137 - (libeio) fix a bug that could potentially cause IO::AIO
138 not to get initialised properly.
139
1403.03 Thu May 29 05:33:30 CEST 2008
141 - (libeio) correctly call pthread_attr_destroy ().
142 - (libeio) work around broken bsd headers once more.
143 - reduce shared library size again by not including wrappers.
144 - max_outstanding could cause poll to enter a busy-waiting loop.
145 - document the new IO::AIO::poll_cb result value.
146
1473.02 Mon May 12 02:32:02 CEST 2008
148 - fix a memory leak on aio_readlink.
149 - bring back working fchmod.
150 - nop and busy now set result to 0.
151 - set errno to ENOMEM when allocation fails.
152
1533.01 Sun May 11 03:07:03 CEST 2008
154 - (libeio) make it compile on systems without readahead or readdir_r.
155 - (libeio) improve configure check for readahead availability.
156 - do not try to link against -lrt.
157 - use a separate configure script for IO::AIO (not the libeio one).
158
1593.0 Sun May 11 00:57:14 CEST 2008
160 - added bin/treescan to the distribution.
161 - switched to using libeio.
162 - LOTS OF INCOMPATIBLE CHANGES:
163 - remove signal functionality, it is not worth the effort.
164 - max_outstanding no longer returns the previous number of requests.
165 - poll_cb no longer returns number of requests.
166
1672.62 Sat Apr 26 13:59:33 CEST 2008
168 - port to solaris perls configured for old posix
169 (analysed by Jost Krieger).
170 - keep a reference to the perl filehandle object in aio_close,
171 so it doesn't get closed prematurely, leading to ugly races.
172
1732.61 Wed Apr 16 18:45:02 CEST 2008
174 - fix treescan output duplication and improve output ordering.
175 also display files given on the commandline.
176 - use a different algorithm for aio_close that is faster
177 and probably has even lower chances of blocking.
178 - do our own stack memory management for threads - linux
179 allocates outrageous amounts of VM (not so bad unless you
180 use mlockall...), which severely limits the number of threads
181 on 32-bit arches: stack size is the larger of PTHREAD_STACK_MIN
182 and 4096 * sizeof (long) (usually this is 16..64k).
183
1842.6 Sun Mar 30 08:28:11 CEST 2008
185 - added aio_sync.
186 - added aio_pathsync.
187 - fix prototypes of (void) functions.
188
1892.51 Sat Oct 6 16:04:54 CEST 2007
190 - perlio isn't generally threadsafe, so aio_close could not work reliably.
191 aio_close now tries a safe hack that might not be that asynchronous
192 (see the manpage for details).
193 - discard callback return values as to not grow the stack endlessly
194 when poll_cb handles many requests without returning.
195 - minor code cleanups.
196
1972.5 Thu Oct 4 14:49:08 CEST 2007
198 - replaced _fd2fh with faster xs code.
199 - aio_close will now try to do "the right thing" and thus might
200 work sensibly for the very first time.
201
2022.41 Mon Sep 24 21:28:21 CEST 2007
203 - after fork, invest some work to make sure that the poll_fileno
204 stays stable (by dup2'ing the new fd over the old one), to make
205 it easier for programs/libs that don't control their forking
206 behaviour and cannot recreate their watchers.
207
2082.4 Sun Aug 5 18:44:22 CEST 2007
209 - add aio_truncate, aio_chmod, aio_chown, aio_utime (linux
210 successfully demonstrated that you can block on futimes...).
211 - allow undef as fileoffset for aio_read/write and use read/write(2)
212 internally (useful for sockets or O_APPEND handles).
213 - allow undef for length in aio_write.
214 - negative dataoffsets work as expected now in aio_read/aio_write.
215 - use NV instead of UV for 32 bit perls and file offsets, as NVs
216 have a larger range then.
217 - shared code between BDB and IO::AIO.
218 - aio_busy was completely broken. now fixed.
219 - readahead emulation now returns something.
220 - correctly set errno to ENOSYS on unimplemented functions
221 (should never happen, though).
222 - large changes to make it partially compile and run on win32,
223 but win32 lacks too much functionality, and perl overrides way
224 too many functions with crashing versions.
225
2262.33 Tue Jan 23 23:55:41 CET 2007
227 - fix install path (Andreas J. Koenig).
228
2292.32 Mon Jan 22 16:56:23 CET 2007
230 - added aio_rmtree.
231 - wow, aio_mkdir was missing.
232 - aio_load did return undef on error, not -1.
233 - use prefixexp not prefix in autoconf.pm
234 (suggested by ... rt.cpan.org unreachable).
235 - avoid installing autoconf.pm.
236
2372.31 Sat Jan 6 03:46:02 CET 2007
238 - added aio_load.
239
2402.3 Sat Dec 23 05:48:07 CET 2006
241 - fix off-by-one bug in aio_read, causing memory corruption
242 or crashes.
243
2442.21 Fri Dec 22 05:03:38 CET 2006
245 - minor doc updates.
246 - minor cleanups.
247 - IO::AIO::poll returns request count.
248 - undocumented and unfinished async-signal-reporting.
249
2502.2 Tue Oct 31 00:31:00 CET 2006
251 - minor doc updates.
252 - added aio_readlink.
253 - properly zero-terminate aio_read buffer.
254 - fix aio_read/write with nonzero dataoffset.
255 - reduced size of aio request structure.
256 - better diagnostics when pathnames etc. are not byte-encoded;
257 do not leak request in that case, either.
258
2592.1 Sun Oct 29 02:01:57 CET 2006
260 - INCOMPATIBLE CHANGE: replace IO::AIO::poll_some by
261 IO::AIO::max_poll_reqs and IO::AIO::max_poll_time.
262 - fix a bug in aio_move where it would fail everytime
263 it would have to copy files manually.
264 - doc updates.
265 - start threads only on (very low) demand.
266 - end superfluous threads automatically after 10s idling.
267 - add IO::AIO::max_idle to control this.
268 - some tuning applied to random places.
269 - add aio_mknod.
270
2712.0 Thu Oct 26 18:27:58 CEST 2006
272 - minor incompatibility: max_outstanding semantics have changed.
273 - major rewrite, consider all functionality EXPERIMENTAL.
274 - aio requests can be cancelled.
275 - callbacks can be (re-)set later.
276 - aio requests can choose between 9 priorities.
277 - add aio_group: aio requests can be grouped
278 into composite requests.
279 - generator interface for groups.
280 - add IO::AIO::poll_some.
281 - major documentation improvements.
282 - very minor bugfixes.
283 - add aio_nop for dummy requests.
284 - add aio_busy mainly for benchmarking and debugging.
285 - use "fast" mutexes on linux.
286 - use dynamic (and larger) buffers instead of
287 putting them onto the stack.
288 - optimise x86 and amd64 a bit.
289 - better error checking when ENOMEM.
290 - hopefully fix mem and dirp leaks on fork.
291 - warn about broken perl malloc.
292 - compiles on cygwin (but pread is broken on cygwin
293 which is not detected by autoconf, so you have to
294 edit autoconf/config.h yourself to enable emulation).
295
2961.8 Sat Jun 24 22:20:44 CEST 2006
297 - add and/or document aio_rename, aio_link, aio_symlink and aio_move.
298
2991.73 Wed Mar 1 22:49:32 CET 2006
300 - codename "jost"
301 - AIX/Solaris(?) aren't being helpful again, hardcode a value
7 and drive with your eyes closed (reported by wcooley@nakedape.cc). 302 for NAME_MAX and drive with your eyes closed (reported by
303 wcooley@nakedape.cc).
8 304
91.72 Thu Feb 2 00:40:44 CET 2006 3051.72 Thu Feb 2 00:40:44 CET 2006
10 - another minor bug in aio_scandir, again, the callback was called 306 - another minor bug in aio_scandir, again, the callback was called
11 twice when the directory can't be stat'ed. 307 twice when the directory can't be stat'ed.
12 308
… …
37 - somebody nagged about C89 compatibility, so this release should 333 - somebody nagged about C89 compatibility, so this release should
38 be C89 compatible, but no guarantees for future ones. 334 be C89 compatible, but no guarantees for future ones.
39 - abort when the configure script fails. 335 - abort when the configure script fails.
40 336
411.4 Wed Aug 17 08:07:27 CEST 2005 3371.4 Wed Aug 17 08:07:27 CEST 2005
42 - forget to recreate the pipe after forking, this could cause 338 - forgot to recreate the pipe after forking, this could cause
43 deadlocks. 339 deadlocks.
44 340
451.3 Wed Aug 17 07:25:54 CEST 2005 3411.3 Wed Aug 17 07:25:54 CEST 2005
46 - properly propagate exceptions from callbacks, instead of silently 342 - properly propagate exceptions from callbacks, instead of silently
47 eating them. 343 eating them.

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