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Comparing IO-AIO/Changes (file contents):
Revision 1.81 by root, Tue Oct 24 00:27:20 2006 UTC vs.
Revision 1.220 by root, Sun Jan 10 20:28:43 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: 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? (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?
6 10
72.0 11 - (libeio) more fixes for the freebsd/apple sendfile - broken by
12 manpage standards, but apparently correct accoridng to actual
13 kernel sources.
14 - add IO::AIO::m(un)lockall support.
15
163.5 Thu Jan 7 21:25:04 CET 2010
17 - (liebio) fix freebsd sendfile (Vanilla Hsu).
18 - (libeio) also fix darwin sendfile that suffered from a similar bug.
19 - add aio_statvfs as interface to statvfs/fstatvfs.
20 - work around buggy symlink() on cygwin in the testsuite.
21 - wtf. freebsd-8.0 actually passes the testsuite! I knew
22 they could implement fork and semaphores one day! cheers!
23
243.4 Sat Jan 2 15:13:04 CET 2010
25 - (libeio) max_poll_time was not properly converted to ticks.
26 - clarify cancel_subs description.
27 - IO::AIO::sendfile did not actually return the return value
28 from the sendfile call.
29 - implement aio_msync, aio_mtouch.
30 - (libeio) tentatively support darwin in sendfile.
31
323.31 Thu Nov 12 02:14:29 CET 2009
33 - fix result status documentation of aio_copy, aio_move.
34 - speed up object creation considerably by avoiding
35 hash lookups.
36
373.3 Wed Aug 5 13:52:58 CEST 2009
38 - use common::sense.
39 - use common schmorp.h header.
40 - allow integers (file descriptors) in addition to file handles.
41 - take advantage of linux' eventfd (but it seems slower on smp?).
42 - use poll not select on posix platforms.
43
443.261 Wed Jul 1 10:11:51 CEST 2009
45 - more 0S X workarounds (patch by Tokuhiro Matsuno).
46
473.26 Tue Jun 30 09:33:26 CEST 2009
48 - 0S X of course claims to be posix 2008 but lacks posix_fadvise.
49 try to work around this horribly broken OS in a somewhat hackish
50 way. might help other os's too.
51
523.25 Sat Jun 27 05:18:26 CEST 2009
53 - added IO::AIO::fadvise and IO::AIO::sendfile.
54 - (libeio) replaced quicksort+insertion sort by a tuned radix
55 sort + insertion sort, resulting in comparable runtime (usually
56 faster) to the old version, but without any ill side effects on
57 degenerated (for quicksort) data.
58 - (libeio) correctly sort dirs by inodes if we have perfect type
59 knowledge and DIRS_FIRST is used.
60 - (libeio) internally the wrong DT_* constants were used, but no
61 known system has differing EIO_DT_*/DT_* values, so not an issue.
62 - removed a (harmless) assert that was left over on the code
63 but should not have been.
64 - use more correct types (change IO length from IV to VAL64,
65 which makes a difference on systems without 64 bit perls).
66
673.23 Sat Jun 13 16:57:58 CEST 2009
68 - fix off-by-one bug in aio_readdir that was introduced in the
69 rushed 3.22 release.
70
713.22 Sat Jun 13 15:32:40 CEST 2009
72 - speed up readdirx sort algorithm slightly.
73 - bin/treescan was missing from distro tarball.
74
753.21 Fri Jun 12 18:45:53 CEST 2009
76 - new options --dirs and --files for treescan.
77 - install bin/treescan by default.
78 - (libeio) aio_readdir can now be cancelled while executing.
79 - fix a printf format string for 64 bit systems (could lead
80 to problems on big endian 64 bit systems).
81 - do not use qsort() but our own algorithm: glibc initialises
82 the whole locale and I/O subsystem inside qsort, causing
83 a stack overflow on 32 bit machines. The new sort uses much less
84 stack and is more than twice as fast in typical situations.
85
863.2 Sun Jun 7 20:30:05 CEST 2009
87 - (libeio) pwrite emulation was even more flawed than intended and did
88 not restore the file offset.
89 - add aio_readdirx, which can return inode and filetype and sort
90 the names in various ways.
91 - unfortunately, utime, chmod, chown on an open file that has just
92 been written can easily block, which caused aio_copy to block the
93 process. no more!
94 - no longer rely on dst path in aio_copy when futime is available.
95
963.19 Tue Apr 21 22:05:21 CEST 2009
97 - more perl 5.10 workarounds for aio_read and write.
98 - aio_write no longer modifies the sv (if possible).
99 - aio_read now works correctly with magic values.
100
1013.18 Sun Apr 19 21:17:32 CEST 2009
102 - better diagnostics when some aio_* functions get passed an illegal fh.
103 - try to avoid crashes due to incompatible 5.10 API changes. grmbl.
104
1053.17 Thu Nov 20 08:45:36 CET 2008
106 - (libeio) added aio_sync_file_range (untested).
107 - add aio_busy to @IO::AIO::AIO_REQ.
108
1093.16 Wed Oct 22 18:28:01 CEST 2008
110 - use SvREFCNT_inc instead of SvREFCNT_inc_NN in a non-speed critical
111 part to improve portability to perl 5.8 (reported by szymon).
112
1133.15 Mon Oct 13 00:39:55 CEST 2008
114 - automatic removal of feeders was broken.
115 - (libeio) use a more robust method to detect whether a feeder
116 has added something to the group or not.
117
1183.1 Thu Oct 2 13:34:40 CEST 2008
119 - pre-deref the passed callback object, for increased speed
120 and decreased memory usage.
121 - call on_next_submit callback even for aio_group - impact unknown,
122 but seems more correct.
123 - $req->cb now returns the original callback.
124 - (libeio) pass EIO_GROUP/aio_group requests through the queue without
125 requiring a thread switch.
126 - (libeio) status code of aio_futime and aio_utime was always passed 0.
127 - do some other ยต-optimisations.
128
1293.07 Sat Aug 2 16:06:13 CEST 2008
130 - do not include LIBS in autoconf tests.
131
1323.06 Tue Jul 15 12:41:32 CEST 2008
133 - move preadwritelock definition before it's first reference,
134 to make it compile again on broken platforms (they still exist)
135 or badly cofngiured perls (redhat...), reported by Rob Bloodgood.
136
1373.05 Thu Jun 19 23:23:52 CEST 2008
138 - work around perl overriding readdir etc. with thread-unsafe
139 (sic!) versions.
140
1413.04 Wed Jun 18 01:35:38 CEST 2008
142 - (libeio) fix eio_mknod, which confused it's arguments.
143 - (libeio) do not use readdir_r, as Ulrich Drepper pointed out that this
144 is stupid.
145 - (libeio) fix eio__readahead prototype, patch by Jost Krieger.
146 - (libeio) fix a bug that could potentially cause IO::AIO
147 not to get initialised properly.
148
1493.03 Thu May 29 05:33:30 CEST 2008
150 - (libeio) correctly call pthread_attr_destroy ().
151 - (libeio) work around broken bsd headers once more.
152 - reduce shared library size again by not including wrappers.
153 - max_outstanding could cause poll to enter a busy-waiting loop.
154 - document the new IO::AIO::poll_cb result value.
155
1563.02 Mon May 12 02:32:02 CEST 2008
157 - fix a memory leak on aio_readlink.
158 - bring back working fchmod.
159 - nop and busy now set result to 0.
160 - set errno to ENOMEM when allocation fails.
161
1623.01 Sun May 11 03:07:03 CEST 2008
163 - (libeio) make it compile on systems without readahead or readdir_r.
164 - (libeio) improve configure check for readahead availability.
165 - do not try to link against -lrt.
166 - use a separate configure script for IO::AIO (not the libeio one).
167
1683.0 Sun May 11 00:57:14 CEST 2008
169 - added bin/treescan to the distribution.
170 - switched to using libeio.
171 - LOTS OF INCOMPATIBLE CHANGES:
172 - remove signal functionality, it is not worth the effort.
173 - max_outstanding no longer returns the previous number of requests.
174 - poll_cb no longer returns number of requests.
175
1762.62 Sat Apr 26 13:59:33 CEST 2008
177 - port to solaris perls configured for old posix
178 (analysed by Jost Krieger).
179 - keep a reference to the perl filehandle object in aio_close,
180 so it doesn't get closed prematurely, leading to ugly races.
181
1822.61 Wed Apr 16 18:45:02 CEST 2008
183 - fix treescan output duplication and improve output ordering.
184 also display files given on the commandline.
185 - use a different algorithm for aio_close that is faster
186 and probably has even lower chances of blocking.
187 - do our own stack memory management for threads - linux
188 allocates outrageous amounts of VM (not so bad unless you
189 use mlockall...), which severely limits the number of threads
190 on 32-bit arches: stack size is the larger of PTHREAD_STACK_MIN
191 and 4096 * sizeof (long) (usually this is 16..64k).
192
1932.6 Sun Mar 30 08:28:11 CEST 2008
194 - added aio_sync.
195 - added aio_pathsync.
196 - fix prototypes of (void) functions.
197
1982.51 Sat Oct 6 16:04:54 CEST 2007
199 - perlio isn't generally threadsafe, so aio_close could not work reliably.
200 aio_close now tries a safe hack that might not be that asynchronous
201 (see the manpage for details).
202 - discard callback return values as to not grow the stack endlessly
203 when poll_cb handles many requests without returning.
204 - minor code cleanups.
205
2062.5 Thu Oct 4 14:49:08 CEST 2007
207 - replaced _fd2fh with faster xs code.
208 - aio_close will now try to do "the right thing" and thus might
209 work sensibly for the very first time.
210
2112.41 Mon Sep 24 21:28:21 CEST 2007
212 - after fork, invest some work to make sure that the poll_fileno
213 stays stable (by dup2'ing the new fd over the old one), to make
214 it easier for programs/libs that don't control their forking
215 behaviour and cannot recreate their watchers.
216
2172.4 Sun Aug 5 18:44:22 CEST 2007
218 - add aio_truncate, aio_chmod, aio_chown, aio_utime (linux
219 successfully demonstrated that you can block on futimes...).
220 - allow undef as fileoffset for aio_read/write and use read/write(2)
221 internally (useful for sockets or O_APPEND handles).
222 - allow undef for length in aio_write.
223 - negative dataoffsets work as expected now in aio_read/aio_write.
224 - use NV instead of UV for 32 bit perls and file offsets, as NVs
225 have a larger range then.
226 - shared code between BDB and IO::AIO.
227 - aio_busy was completely broken. now fixed.
228 - readahead emulation now returns something.
229 - correctly set errno to ENOSYS on unimplemented functions
230 (should never happen, though).
231 - large changes to make it partially compile and run on win32,
232 but win32 lacks too much functionality, and perl overrides way
233 too many functions with crashing versions.
234
2352.33 Tue Jan 23 23:55:41 CET 2007
236 - fix install path (Andreas J. Koenig).
237
2382.32 Mon Jan 22 16:56:23 CET 2007
239 - added aio_rmtree.
240 - wow, aio_mkdir was missing.
241 - aio_load did return undef on error, not -1.
242 - use prefixexp not prefix in autoconf.pm
243 (suggested by ... rt.cpan.org unreachable).
244 - avoid installing autoconf.pm.
245
2462.31 Sat Jan 6 03:46:02 CET 2007
247 - added aio_load.
248
2492.3 Sat Dec 23 05:48:07 CET 2006
250 - fix off-by-one bug in aio_read, causing memory corruption
251 or crashes.
252
2532.21 Fri Dec 22 05:03:38 CET 2006
254 - minor doc updates.
255 - minor cleanups.
256 - IO::AIO::poll returns request count.
257 - undocumented and unfinished async-signal-reporting.
258
2592.2 Tue Oct 31 00:31:00 CET 2006
260 - minor doc updates.
261 - added aio_readlink.
262 - properly zero-terminate aio_read buffer.
263 - fix aio_read/write with nonzero dataoffset.
264 - reduced size of aio request structure.
265 - better diagnostics when pathnames etc. are not byte-encoded;
266 do not leak request in that case, either.
267
2682.1 Sun Oct 29 02:01:57 CET 2006
269 - INCOMPATIBLE CHANGE: replace IO::AIO::poll_some by
270 IO::AIO::max_poll_reqs and IO::AIO::max_poll_time.
271 - fix a bug in aio_move where it would fail everytime
272 it would have to copy files manually.
273 - doc updates.
274 - start threads only on (very low) demand.
275 - end superfluous threads automatically after 10s idling.
276 - add IO::AIO::max_idle to control this.
277 - some tuning applied to random places.
278 - add aio_mknod.
279
2802.0 Thu Oct 26 18:27:58 CEST 2006
281 - minor incompatibility: max_outstanding semantics have changed.
282 - major rewrite, consider all functionality EXPERIMENTAL.
8 - aio requests can be cancelled. 283 - aio requests can be cancelled.
9 - callbacks can be (re-)set later. 284 - callbacks can be (re-)set later.
285 - aio requests can choose between 9 priorities.
10 - add aio_group: aio requests can be grouped. 286 - add aio_group: aio requests can be grouped
287 into composite requests.
11 - implement generator interface for groups. 288 - generator interface for groups.
289 - add IO::AIO::poll_some.
12 - major documentation improvements. 290 - major documentation improvements.
13 - very minor bugfixes. 291 - very minor bugfixes.
14 - add aio_nop for dummy requests. 292 - add aio_nop for dummy requests.
15 - add aio_sleep mainly for benchmarking and debugging. 293 - add aio_busy mainly for benchmarking and debugging.
16 - deprecated max_outstanding.
17 - use "fast" mutexes on linux. 294 - use "fast" mutexes on linux.
18 - use dynamic (and larger) buffers instead of 295 - use dynamic (and larger) buffers instead of
19 putting them onto the stack. 296 putting them onto the stack.
20 - optimise x86 and amd64 a bit. 297 - optimise x86 and amd64 a bit.
21 - better error checking when ENOMEM. 298 - better error checking when ENOMEM.
299 - hopefully fix mem and dirp leaks on fork.
300 - warn about broken perl malloc.
301 - compiles on cygwin (but pread is broken on cygwin
302 which is not detected by autoconf, so you have to
303 edit autoconf/config.h yourself to enable emulation).
22 304
231.8 Sat Jun 24 22:20:44 CEST 2006 3051.8 Sat Jun 24 22:20:44 CEST 2006
24 - add and/or document aio_rename, aio_link, aio_symlink and aio_move. 306 - add and/or document aio_rename, aio_link, aio_symlink and aio_move.
25 307
261.73 Wed Mar 1 22:49:32 CET 2006 3081.73 Wed Mar 1 22:49:32 CET 2006
… …
60 - somebody nagged about C89 compatibility, so this release should 342 - somebody nagged about C89 compatibility, so this release should
61 be C89 compatible, but no guarantees for future ones. 343 be C89 compatible, but no guarantees for future ones.
62 - abort when the configure script fails. 344 - abort when the configure script fails.
63 345
641.4 Wed Aug 17 08:07:27 CEST 2005 3461.4 Wed Aug 17 08:07:27 CEST 2005
65 - forget to recreate the pipe after forking, this could cause 347 - forgot to recreate the pipe after forking, this could cause
66 deadlocks. 348 deadlocks.
67 349
681.3 Wed Aug 17 07:25:54 CEST 2005 3501.3 Wed Aug 17 07:25:54 CEST 2005
69 - properly propagate exceptions from callbacks, instead of silently 351 - properly propagate exceptions from callbacks, instead of silently
70 eating them. 352 eating them.

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