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Comparing IO-AIO/Changes (file contents):
Revision 1.89 by root, Thu Oct 26 12:38:04 2006 UTC vs.
Revision 1.232 by root, Wed Aug 4 16:06:54 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: aio_mincore?
10TODO: posix_madvise.
11TODO: add? also linux-specific stuff?
12O_EXEC
13O_SEARCH
14O_CLOEXEC
15O_DIRECTORY
16O_DSYNC
17O_NOCTTY
18O_NOFOLLOW
19O_NONBLOCK
20O_RSYNC
21O_SYNC
22O_TTY_INIT
23TODO: document/test madvise
4 24
52.0 25 - do not leak memory in IO::AIO::mmap when the scalar already
6 - INCOMPATIBLE CHANGE: max_outstanding was removed, use 26 had string-data.
7 a group with a feeder instead. 27 - add O_RDWR, O_APPEND and O_EXCL symbols and semi-documented
28 them.
29 - cache the result IV, for a minor speedup in the common case.
30 - croak when an mmapped-scalar changes location, to detect
31 user-errors better.
32
333.65 Wed Mar 31 02:45:05 CEST 2010
34 - actually use PATH_MAX instead of NAME_MAX for readlink, as to not
35 cut off long pathnames in aio_readlink (based on patch by
36 Rasmus Andersson).
37 - a double fork partially killed the event pipe (great testcase
38 by dormando). affects IO::AIO, BDB and Async::Interrupt.
39 - suck steve's dick and rename our symbols to avoid colliding
40 with nonstandard identifier spam on the broken os x pseudo-os.
41 affects IO::AIO and BDB.
42
433.6 Mon Jan 11 00:43:39 CET 2010
44 - (libeio) more fixes for the freebsd/apple sendfile - broken by
45 manpage standards, but apparently correct accoridng to actual
46 kernel sources.
47 - add IO::AIO::mmap/munmap support.
48 - add IO::AIO::m(un)lockall support.
49 - clean up manpage.
50
513.5 Thu Jan 7 21:25:04 CET 2010
52 - (liebio) fix freebsd sendfile (Vanilla Hsu).
53 - (libeio) also fix darwin sendfile that suffered from a similar bug.
54 - add aio_statvfs as interface to statvfs/fstatvfs.
55 - work around buggy symlink() on cygwin in the testsuite.
56 - wtf. freebsd-8.0 actually passes the testsuite! I knew
57 they could implement fork and semaphores one day! cheers!
58
593.4 Sat Jan 2 15:13:04 CET 2010
60 - (libeio) max_poll_time was not properly converted to ticks.
61 - clarify cancel_subs description.
62 - IO::AIO::sendfile did not actually return the return value
63 from the sendfile call.
64 - implement aio_msync, aio_mtouch.
65 - (libeio) tentatively support darwin in sendfile.
66
673.31 Thu Nov 12 02:14:29 CET 2009
68 - fix result status documentation of aio_copy, aio_move.
69 - speed up object creation considerably by avoiding
70 hash lookups.
71
723.3 Wed Aug 5 13:52:58 CEST 2009
73 - use common::sense.
74 - use common schmorp.h header.
75 - allow integers (file descriptors) in addition to file handles.
76 - take advantage of linux' eventfd (but it seems slower on smp?).
77 - use poll not select on posix platforms.
78
793.261 Wed Jul 1 10:11:51 CEST 2009
80 - more 0S X workarounds (patch by Tokuhiro Matsuno).
81
823.26 Tue Jun 30 09:33:26 CEST 2009
83 - 0S X of course claims to be posix 2008 but lacks posix_fadvise.
84 try to work around this horribly broken OS in a somewhat hackish
85 way. might help other os's too.
86
873.25 Sat Jun 27 05:18:26 CEST 2009
88 - added IO::AIO::fadvise and IO::AIO::sendfile.
89 - (libeio) replaced quicksort+insertion sort by a tuned radix
90 sort + insertion sort, resulting in comparable runtime (usually
91 faster) to the old version, but without any ill side effects on
92 degenerated (for quicksort) data.
93 - (libeio) correctly sort dirs by inodes if we have perfect type
94 knowledge and DIRS_FIRST is used.
95 - (libeio) internally the wrong DT_* constants were used, but no
96 known system has differing EIO_DT_*/DT_* values, so not an issue.
97 - removed a (harmless) assert that was left over on the code
98 but should not have been.
99 - use more correct types (change IO length from IV to VAL64,
100 which makes a difference on systems without 64 bit perls).
101
1023.23 Sat Jun 13 16:57:58 CEST 2009
103 - fix off-by-one bug in aio_readdir that was introduced in the
104 rushed 3.22 release.
105
1063.22 Sat Jun 13 15:32:40 CEST 2009
107 - speed up readdirx sort algorithm slightly.
108 - bin/treescan was missing from distro tarball.
109
1103.21 Fri Jun 12 18:45:53 CEST 2009
111 - new options --dirs and --files for treescan.
112 - install bin/treescan by default.
113 - (libeio) aio_readdir can now be cancelled while executing.
114 - fix a printf format string for 64 bit systems (could lead
115 to problems on big endian 64 bit systems).
116 - do not use qsort() but our own algorithm: glibc initialises
117 the whole locale and I/O subsystem inside qsort, causing
118 a stack overflow on 32 bit machines. The new sort uses much less
119 stack and is more than twice as fast in typical situations.
120
1213.2 Sun Jun 7 20:30:05 CEST 2009
122 - (libeio) pwrite emulation was even more flawed than intended and did
123 not restore the file offset.
124 - add aio_readdirx, which can return inode and filetype and sort
125 the names in various ways.
126 - unfortunately, utime, chmod, chown on an open file that has just
127 been written can easily block, which caused aio_copy to block the
128 process. no more!
129 - no longer rely on dst path in aio_copy when futime is available.
130
1313.19 Tue Apr 21 22:05:21 CEST 2009
132 - more perl 5.10 workarounds for aio_read and write.
133 - aio_write no longer modifies the sv (if possible).
134 - aio_read now works correctly with magic values.
135
1363.18 Sun Apr 19 21:17:32 CEST 2009
137 - better diagnostics when some aio_* functions get passed an illegal fh.
138 - try to avoid crashes due to incompatible 5.10 API changes. grmbl.
139
1403.17 Thu Nov 20 08:45:36 CET 2008
141 - (libeio) added aio_sync_file_range (untested).
142 - add aio_busy to @IO::AIO::AIO_REQ.
143
1443.16 Wed Oct 22 18:28:01 CEST 2008
145 - use SvREFCNT_inc instead of SvREFCNT_inc_NN in a non-speed critical
146 part to improve portability to perl 5.8 (reported by szymon).
147
1483.15 Mon Oct 13 00:39:55 CEST 2008
149 - automatic removal of feeders was broken.
150 - (libeio) use a more robust method to detect whether a feeder
151 has added something to the group or not.
152
1533.1 Thu Oct 2 13:34:40 CEST 2008
154 - pre-deref the passed callback object, for increased speed
155 and decreased memory usage.
156 - call on_next_submit callback even for aio_group - impact unknown,
157 but seems more correct.
158 - $req->cb now returns the original callback.
159 - (libeio) pass EIO_GROUP/aio_group requests through the queue without
160 requiring a thread switch.
161 - (libeio) status code of aio_futime and aio_utime was always passed 0.
162 - do some other ยต-optimisations.
163
1643.07 Sat Aug 2 16:06:13 CEST 2008
165 - do not include LIBS in autoconf tests.
166
1673.06 Tue Jul 15 12:41:32 CEST 2008
168 - move preadwritelock definition before it's first reference,
169 to make it compile again on broken platforms (they still exist)
170 or badly cofngiured perls (redhat...), reported by Rob Bloodgood.
171
1723.05 Thu Jun 19 23:23:52 CEST 2008
173 - work around perl overriding readdir etc. with thread-unsafe
174 (sic!) versions.
175
1763.04 Wed Jun 18 01:35:38 CEST 2008
177 - (libeio) fix eio_mknod, which confused it's arguments.
178 - (libeio) do not use readdir_r, as Ulrich Drepper pointed out that this
179 is stupid.
180 - (libeio) fix eio__readahead prototype, patch by Jost Krieger.
181 - (libeio) fix a bug that could potentially cause IO::AIO
182 not to get initialised properly.
183
1843.03 Thu May 29 05:33:30 CEST 2008
185 - (libeio) correctly call pthread_attr_destroy ().
186 - (libeio) work around broken bsd headers once more.
187 - reduce shared library size again by not including wrappers.
188 - max_outstanding could cause poll to enter a busy-waiting loop.
189 - document the new IO::AIO::poll_cb result value.
190
1913.02 Mon May 12 02:32:02 CEST 2008
192 - fix a memory leak on aio_readlink.
193 - bring back working fchmod.
194 - nop and busy now set result to 0.
195 - set errno to ENOMEM when allocation fails.
196
1973.01 Sun May 11 03:07:03 CEST 2008
198 - (libeio) make it compile on systems without readahead or readdir_r.
199 - (libeio) improve configure check for readahead availability.
200 - do not try to link against -lrt.
201 - use a separate configure script for IO::AIO (not the libeio one).
202
2033.0 Sun May 11 00:57:14 CEST 2008
204 - added bin/treescan to the distribution.
205 - switched to using libeio.
206 - LOTS OF INCOMPATIBLE CHANGES:
207 - remove signal functionality, it is not worth the effort.
208 - max_outstanding no longer returns the previous number of requests.
209 - poll_cb no longer returns number of requests.
210
2112.62 Sat Apr 26 13:59:33 CEST 2008
212 - port to solaris perls configured for old posix
213 (analysed by Jost Krieger).
214 - keep a reference to the perl filehandle object in aio_close,
215 so it doesn't get closed prematurely, leading to ugly races.
216
2172.61 Wed Apr 16 18:45:02 CEST 2008
218 - fix treescan output duplication and improve output ordering.
219 also display files given on the commandline.
220 - use a different algorithm for aio_close that is faster
221 and probably has even lower chances of blocking.
222 - do our own stack memory management for threads - linux
223 allocates outrageous amounts of VM (not so bad unless you
224 use mlockall...), which severely limits the number of threads
225 on 32-bit arches: stack size is the larger of PTHREAD_STACK_MIN
226 and 4096 * sizeof (long) (usually this is 16..64k).
227
2282.6 Sun Mar 30 08:28:11 CEST 2008
229 - added aio_sync.
230 - added aio_pathsync.
231 - fix prototypes of (void) functions.
232
2332.51 Sat Oct 6 16:04:54 CEST 2007
234 - perlio isn't generally threadsafe, so aio_close could not work reliably.
235 aio_close now tries a safe hack that might not be that asynchronous
236 (see the manpage for details).
237 - discard callback return values as to not grow the stack endlessly
238 when poll_cb handles many requests without returning.
239 - minor code cleanups.
240
2412.5 Thu Oct 4 14:49:08 CEST 2007
242 - replaced _fd2fh with faster xs code.
243 - aio_close will now try to do "the right thing" and thus might
244 work sensibly for the very first time.
245
2462.41 Mon Sep 24 21:28:21 CEST 2007
247 - after fork, invest some work to make sure that the poll_fileno
248 stays stable (by dup2'ing the new fd over the old one), to make
249 it easier for programs/libs that don't control their forking
250 behaviour and cannot recreate their watchers.
251
2522.4 Sun Aug 5 18:44:22 CEST 2007
253 - add aio_truncate, aio_chmod, aio_chown, aio_utime (linux
254 successfully demonstrated that you can block on futimes...).
255 - allow undef as fileoffset for aio_read/write and use read/write(2)
256 internally (useful for sockets or O_APPEND handles).
257 - allow undef for length in aio_write.
258 - negative dataoffsets work as expected now in aio_read/aio_write.
259 - use NV instead of UV for 32 bit perls and file offsets, as NVs
260 have a larger range then.
261 - shared code between BDB and IO::AIO.
262 - aio_busy was completely broken. now fixed.
263 - readahead emulation now returns something.
264 - correctly set errno to ENOSYS on unimplemented functions
265 (should never happen, though).
266 - large changes to make it partially compile and run on win32,
267 but win32 lacks too much functionality, and perl overrides way
268 too many functions with crashing versions.
269
2702.33 Tue Jan 23 23:55:41 CET 2007
271 - fix install path (Andreas J. Koenig).
272
2732.32 Mon Jan 22 16:56:23 CET 2007
274 - added aio_rmtree.
275 - wow, aio_mkdir was missing.
276 - aio_load did return undef on error, not -1.
277 - use prefixexp not prefix in autoconf.pm
278 (suggested by ... rt.cpan.org unreachable).
279 - avoid installing autoconf.pm.
280
2812.31 Sat Jan 6 03:46:02 CET 2007
282 - added aio_load.
283
2842.3 Sat Dec 23 05:48:07 CET 2006
285 - fix off-by-one bug in aio_read, causing memory corruption
286 or crashes.
287
2882.21 Fri Dec 22 05:03:38 CET 2006
289 - minor doc updates.
290 - minor cleanups.
291 - IO::AIO::poll returns request count.
292 - undocumented and unfinished async-signal-reporting.
293
2942.2 Tue Oct 31 00:31:00 CET 2006
295 - minor doc updates.
296 - added aio_readlink.
297 - properly zero-terminate aio_read buffer.
298 - fix aio_read/write with nonzero dataoffset.
299 - reduced size of aio request structure.
300 - better diagnostics when pathnames etc. are not byte-encoded;
301 do not leak request in that case, either.
302
3032.1 Sun Oct 29 02:01:57 CET 2006
304 - INCOMPATIBLE CHANGE: replace IO::AIO::poll_some by
305 IO::AIO::max_poll_reqs and IO::AIO::max_poll_time.
306 - fix a bug in aio_move where it would fail everytime
307 it would have to copy files manually.
308 - doc updates.
309 - start threads only on (very low) demand.
310 - end superfluous threads automatically after 10s idling.
311 - add IO::AIO::max_idle to control this.
312 - some tuning applied to random places.
313 - add aio_mknod.
314
3152.0 Thu Oct 26 18:27:58 CEST 2006
316 - minor incompatibility: max_outstanding semantics have changed.
8 - major rewrite, consider all functionality EXPERIMENTAL. 317 - major rewrite, consider all functionality EXPERIMENTAL.
9 - aio requests can be cancelled. 318 - aio requests can be cancelled.
10 - callbacks can be (re-)set later. 319 - callbacks can be (re-)set later.
11 - aio requests can have choose 9 priorities. 320 - aio requests can choose between 9 priorities.
12 - add aio_group: aio requests can be grouped 321 - add aio_group: aio requests can be grouped
13 into composite requests. 322 into composite requests.
14 - generator interface for groups. 323 - generator interface for groups.
15 - add IO::AIO::poll_some. 324 - add IO::AIO::poll_some.
16 - major documentation improvements. 325 - major documentation improvements.
17 - very minor bugfixes. 326 - very minor bugfixes.
18 - add aio_nop for dummy requests. 327 - add aio_nop for dummy requests.
19 - add aio_busy mainly for benchmarking and debugging. 328 - add aio_busy mainly for benchmarking and debugging.
20 - deprecated max_outstanding.
21 - use "fast" mutexes on linux. 329 - use "fast" mutexes on linux.
22 - use dynamic (and larger) buffers instead of 330 - use dynamic (and larger) buffers instead of
23 putting them onto the stack. 331 putting them onto the stack.
24 - optimise x86 and amd64 a bit. 332 - optimise x86 and amd64 a bit.
25 - better error checking when ENOMEM. 333 - better error checking when ENOMEM.
26 - hopefully fix mem and dirp leaks on fork. 334 - hopefully fix mem and dirp leaks on fork.
335 - warn about broken perl malloc.
27 - compiles on cygwin (but pread is broken on cygwin 336 - compiles on cygwin (but pread is broken on cygwin
28 which is not detected by autoconf, so you have to 337 which is not detected by autoconf, so you have to
29 edit autoconf/config.h yourself to enable emulation). 338 edit autoconf/config.h yourself to enable emulation).
30 339
311.8 Sat Jun 24 22:20:44 CEST 2006 3401.8 Sat Jun 24 22:20:44 CEST 2006
… …
68 - somebody nagged about C89 compatibility, so this release should 377 - somebody nagged about C89 compatibility, so this release should
69 be C89 compatible, but no guarantees for future ones. 378 be C89 compatible, but no guarantees for future ones.
70 - abort when the configure script fails. 379 - abort when the configure script fails.
71 380
721.4 Wed Aug 17 08:07:27 CEST 2005 3811.4 Wed Aug 17 08:07:27 CEST 2005
73 - forget to recreate the pipe after forking, this could cause 382 - forgot to recreate the pipe after forking, this could cause
74 deadlocks. 383 deadlocks.
75 384
761.3 Wed Aug 17 07:25:54 CEST 2005 3851.3 Wed Aug 17 07:25:54 CEST 2005
77 - properly propagate exceptions from callbacks, instead of silently 386 - properly propagate exceptions from callbacks, instead of silently
78 eating them. 387 eating them.

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