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Comparing IO-AIO/Changes (file contents):
Revision 1.85 by root, Tue Oct 24 16:35:04 2006 UTC vs.
Revision 1.263 by root, Tue Jul 5 09:24:11 2011 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: 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: getxattr etc.?
11TODO: MS_xxx, posix_fadvise, posix_madvise
12TODO: realpath
5 13
62.0 14 - (libeio) added realpath.
15
163.93 Wed Jun 29 23:44:18 CEST 2011
17 - ECB.H WAS MISSING.
18
193.92 Wed Jun 29 14:45:41 CEST 2011
20 - ecb.h was missing.
21
223.91 Wed Jun 29 13:24:42 CEST 2011
23 - (libeio) work around a Linux (and likely FreeBSD and other
24 kernels) bug where sendfile would not transfer all the requested
25 bytes on large transfers, using a heuristic.
26 - buggy sendfile caused aio_move/copy to sometimes fail for big
27 files (fortunately it checks that the whole file has been
28 transferred...)
29 - use libecb for higher performance and higher portability.
30 - (libeio) disable sendfile on darwin, it's too broken.
31 - disable fork tests on !linux, as only linux supports mixing
32 pthread and fork in perl.
33 - document the fact that fork doesn't work anymore when using
34 this module, on anything !GNU/Linux.
35 - increase timeout in t/04_fork.t, as too many CPAN-tester setups
36 run on a 0.1MHz cpu. Or so.
37
383.9 Fri May 27 02:43:47 CEST 2011
39 - (libeio) fix memory corruption in aio_readdirx for the flags
40 combination READDIR_STAT_ORDER | READDIR_DIRS_FIRST.
41 - add lots of newre POSIX and GNU/Linux-specific open
42 flags.
43
443.8 Sun Mar 27 12:25:33 CEST 2011
45 - use nonstandard but maybe-working-on-bsd fork technique.
46 - support a max_idle value of 0.
47 - support setting of idle timeout value (IO::AIO::idle_timeout).
48
493.72 Fri Feb 11 04:25:38 CET 2011
50 - use _POSIX_MEMLOCK_RANGE to detect mlock/munlock.
51 - aio_mknod always used a dev_t value of 0.
52 - new treescan option: --grep.
53 - add more S_IF macros, and major/minor/makedev "macros".
54
553.71 Thu Dec 30 08:18:46 CET 2010
56 - the numerical result value passed to callbacks did not stringify
57 correctly, due to internal reuse and failure to reset the sv flags.
58 - actually test for posix_[mf]advise, as at least uClibc defines
59 _POSIX_ADVISORY_INFO without actually having any of the required
60 funcitonality. ugh.
61
623.7 Mon Nov 1 23:00:34 CET 2010
63 - implement/add madvise, mmap, munmap, aio_mlockall, munlockall,
64 aio_mlock, munlock, msync and mtouch to @EXPORT_OK.
65 - document the sad state of affairs w.r.t. pthread on many bsds.
66 - do not enable mmap on systems without _POSIX_MAPPED_FILES
67 (openbsd 4.8).
68 - do not leak memory in IO::AIO::mmap when the scalar already
69 had string-data.
70 - add O_RDWR, O_APPEND and O_EXCL symbols and semi-document
71 them.
72 - cache the result IV, for a minor speedup in the common case.
73 - croak when an mmapped-scalar changes location, to detect
74 user-errors better.
75 - fix aio_readlink prototype.
76
773.65 Wed Mar 31 02:45:05 CEST 2010
78 - actually use PATH_MAX instead of NAME_MAX for readlink, as to not
79 cut off long pathnames in aio_readlink (based on patch by
80 Rasmus Andersson).
81 - a double fork partially killed the event pipe (great testcase
82 by dormando). affects IO::AIO, BDB and Async::Interrupt.
83 - suck steve's dick and rename our symbols to avoid colliding
84 with nonstandard identifier spam on the broken os x pseudo-os.
85 affects IO::AIO and BDB.
86
873.6 Mon Jan 11 00:43:39 CET 2010
88 - (libeio) more fixes for the freebsd/apple sendfile - broken by
89 manpage standards, but apparently correct accoridng to actual
90 kernel sources.
91 - add IO::AIO::mmap/munmap support.
92 - add IO::AIO::m(un)lockall support.
93 - clean up manpage.
94
953.5 Thu Jan 7 21:25:04 CET 2010
96 - (liebio) fix freebsd sendfile (Vanilla Hsu).
97 - (libeio) also fix darwin sendfile that suffered from a similar bug.
98 - add aio_statvfs as interface to statvfs/fstatvfs.
99 - work around buggy symlink() on cygwin in the testsuite.
100 - wtf. freebsd-8.0 actually passes the testsuite! I knew
101 they could implement fork and semaphores one day! cheers!
102
1033.4 Sat Jan 2 15:13:04 CET 2010
104 - (libeio) max_poll_time was not properly converted to ticks.
105 - clarify cancel_subs description.
106 - IO::AIO::sendfile did not actually return the return value
107 from the sendfile call.
108 - implement aio_msync, aio_mtouch.
109 - (libeio) tentatively support darwin in sendfile.
110
1113.31 Thu Nov 12 02:14:29 CET 2009
112 - fix result status documentation of aio_copy, aio_move.
113 - speed up object creation considerably by avoiding
114 hash lookups.
115
1163.3 Wed Aug 5 13:52:58 CEST 2009
117 - use common::sense.
118 - use common schmorp.h header.
119 - allow integers (file descriptors) in addition to file handles.
120 - take advantage of linux' eventfd (but it seems slower on smp?).
121 - use poll not select on posix platforms.
122
1233.261 Wed Jul 1 10:11:51 CEST 2009
124 - more 0S X workarounds (patch by Tokuhiro Matsuno).
125
1263.26 Tue Jun 30 09:33:26 CEST 2009
127 - 0S X of course claims to be posix 2008 but lacks posix_fadvise.
128 try to work around this horribly broken OS in a somewhat hackish
129 way. might help other os's too.
130
1313.25 Sat Jun 27 05:18:26 CEST 2009
132 - added IO::AIO::fadvise and IO::AIO::sendfile.
133 - (libeio) replaced quicksort+insertion sort by a tuned radix
134 sort + insertion sort, resulting in comparable runtime (usually
135 faster) to the old version, but without any ill side effects on
136 degenerated (for quicksort) data.
137 - (libeio) correctly sort dirs by inodes if we have perfect type
138 knowledge and DIRS_FIRST is used.
139 - (libeio) internally the wrong DT_* constants were used, but no
140 known system has differing EIO_DT_*/DT_* values, so not an issue.
141 - removed a (harmless) assert that was left over on the code
142 but should not have been.
143 - use more correct types (change IO length from IV to VAL64,
144 which makes a difference on systems without 64 bit perls).
145
1463.23 Sat Jun 13 16:57:58 CEST 2009
147 - fix off-by-one bug in aio_readdir that was introduced in the
148 rushed 3.22 release.
149
1503.22 Sat Jun 13 15:32:40 CEST 2009
151 - speed up readdirx sort algorithm slightly.
152 - bin/treescan was missing from distro tarball.
153
1543.21 Fri Jun 12 18:45:53 CEST 2009
155 - new options --dirs and --files for treescan.
156 - install bin/treescan by default.
157 - (libeio) aio_readdir can now be cancelled while executing.
158 - fix a printf format string for 64 bit systems (could lead
159 to problems on big endian 64 bit systems).
160 - do not use qsort() but our own algorithm: glibc initialises
161 the whole locale and I/O subsystem inside qsort, causing
162 a stack overflow on 32 bit machines. The new sort uses much less
163 stack and is more than twice as fast in typical situations.
164
1653.2 Sun Jun 7 20:30:05 CEST 2009
166 - (libeio) pwrite emulation was even more flawed than intended and did
167 not restore the file offset.
168 - add aio_readdirx, which can return inode and filetype and sort
169 the names in various ways.
170 - unfortunately, utime, chmod, chown on an open file that has just
171 been written can easily block, which caused aio_copy to block the
172 process. no more!
173 - no longer rely on dst path in aio_copy when futime is available.
174
1753.19 Tue Apr 21 22:05:21 CEST 2009
176 - more perl 5.10 workarounds for aio_read and write.
177 - aio_write no longer modifies the sv (if possible).
178 - aio_read now works correctly with magic values.
179
1803.18 Sun Apr 19 21:17:32 CEST 2009
181 - better diagnostics when some aio_* functions get passed an illegal fh.
182 - try to avoid crashes due to incompatible 5.10 API changes. grmbl.
183
1843.17 Thu Nov 20 08:45:36 CET 2008
185 - (libeio) added aio_sync_file_range (untested).
186 - add aio_busy to @IO::AIO::AIO_REQ.
187
1883.16 Wed Oct 22 18:28:01 CEST 2008
189 - use SvREFCNT_inc instead of SvREFCNT_inc_NN in a non-speed critical
190 part to improve portability to perl 5.8 (reported by szymon).
191
1923.15 Mon Oct 13 00:39:55 CEST 2008
193 - automatic removal of feeders was broken.
194 - (libeio) use a more robust method to detect whether a feeder
195 has added something to the group or not.
196
1973.1 Thu Oct 2 13:34:40 CEST 2008
198 - pre-deref the passed callback object, for increased speed
199 and decreased memory usage.
200 - call on_next_submit callback even for aio_group - impact unknown,
201 but seems more correct.
202 - $req->cb now returns the original callback.
203 - (libeio) pass EIO_GROUP/aio_group requests through the queue without
204 requiring a thread switch.
205 - (libeio) status code of aio_futime and aio_utime was always passed 0.
206 - do some other ยต-optimisations.
207
2083.07 Sat Aug 2 16:06:13 CEST 2008
209 - do not include LIBS in autoconf tests.
210
2113.06 Tue Jul 15 12:41:32 CEST 2008
212 - move preadwritelock definition before it's first reference,
213 to make it compile again on broken platforms (they still exist)
214 or badly cofngiured perls (redhat...), reported by Rob Bloodgood.
215
2163.05 Thu Jun 19 23:23:52 CEST 2008
217 - work around perl overriding readdir etc. with thread-unsafe
218 (sic!) versions.
219
2203.04 Wed Jun 18 01:35:38 CEST 2008
221 - (libeio) fix eio_mknod, which confused it's arguments.
222 - (libeio) do not use readdir_r, as Ulrich Drepper pointed out that this
223 is stupid.
224 - (libeio) fix eio__readahead prototype, patch by Jost Krieger.
225 - (libeio) fix a bug that could potentially cause IO::AIO
226 not to get initialised properly.
227
2283.03 Thu May 29 05:33:30 CEST 2008
229 - (libeio) correctly call pthread_attr_destroy ().
230 - (libeio) work around broken bsd headers once more.
231 - reduce shared library size again by not including wrappers.
232 - max_outstanding could cause poll to enter a busy-waiting loop.
233 - document the new IO::AIO::poll_cb result value.
234
2353.02 Mon May 12 02:32:02 CEST 2008
236 - fix a memory leak on aio_readlink.
237 - bring back working fchmod.
238 - nop and busy now set result to 0.
239 - set errno to ENOMEM when allocation fails.
240
2413.01 Sun May 11 03:07:03 CEST 2008
242 - (libeio) make it compile on systems without readahead or readdir_r.
243 - (libeio) improve configure check for readahead availability.
244 - do not try to link against -lrt.
245 - use a separate configure script for IO::AIO (not the libeio one).
246
2473.0 Sun May 11 00:57:14 CEST 2008
248 - added bin/treescan to the distribution.
249 - switched to using libeio.
250 - LOTS OF INCOMPATIBLE CHANGES:
251 - remove signal functionality, it is not worth the effort.
252 - max_outstanding no longer returns the previous number of requests.
253 - poll_cb no longer returns number of requests.
254
2552.62 Sat Apr 26 13:59:33 CEST 2008
256 - port to solaris perls configured for old posix
257 (analysed by Jost Krieger).
258 - keep a reference to the perl filehandle object in aio_close,
259 so it doesn't get closed prematurely, leading to ugly races.
260
2612.61 Wed Apr 16 18:45:02 CEST 2008
262 - fix treescan output duplication and improve output ordering.
263 also display files given on the commandline.
264 - use a different algorithm for aio_close that is faster
265 and probably has even lower chances of blocking.
266 - do our own stack memory management for threads - linux
267 allocates outrageous amounts of VM (not so bad unless you
268 use mlockall...), which severely limits the number of threads
269 on 32-bit arches: stack size is the larger of PTHREAD_STACK_MIN
270 and 4096 * sizeof (long) (usually this is 16..64k).
271
2722.6 Sun Mar 30 08:28:11 CEST 2008
273 - added aio_sync.
274 - added aio_pathsync.
275 - fix prototypes of (void) functions.
276
2772.51 Sat Oct 6 16:04:54 CEST 2007
278 - perlio isn't generally threadsafe, so aio_close could not work reliably.
279 aio_close now tries a safe hack that might not be that asynchronous
280 (see the manpage for details).
281 - discard callback return values as to not grow the stack endlessly
282 when poll_cb handles many requests without returning.
283 - minor code cleanups.
284
2852.5 Thu Oct 4 14:49:08 CEST 2007
286 - replaced _fd2fh with faster xs code.
287 - aio_close will now try to do "the right thing" and thus might
288 work sensibly for the very first time.
289
2902.41 Mon Sep 24 21:28:21 CEST 2007
291 - after fork, invest some work to make sure that the poll_fileno
292 stays stable (by dup2'ing the new fd over the old one), to make
293 it easier for programs/libs that don't control their forking
294 behaviour and cannot recreate their watchers.
295
2962.4 Sun Aug 5 18:44:22 CEST 2007
297 - add aio_truncate, aio_chmod, aio_chown, aio_utime (linux
298 successfully demonstrated that you can block on futimes...).
299 - allow undef as fileoffset for aio_read/write and use read/write(2)
300 internally (useful for sockets or O_APPEND handles).
301 - allow undef for length in aio_write.
302 - negative dataoffsets work as expected now in aio_read/aio_write.
303 - use NV instead of UV for 32 bit perls and file offsets, as NVs
304 have a larger range then.
305 - shared code between BDB and IO::AIO.
306 - aio_busy was completely broken. now fixed.
307 - readahead emulation now returns something.
308 - correctly set errno to ENOSYS on unimplemented functions
309 (should never happen, though).
310 - large changes to make it partially compile and run on win32,
311 but win32 lacks too much functionality, and perl overrides way
312 too many functions with crashing versions.
313
3142.33 Tue Jan 23 23:55:41 CET 2007
315 - fix install path (Andreas J. Koenig).
316
3172.32 Mon Jan 22 16:56:23 CET 2007
318 - added aio_rmtree.
319 - wow, aio_mkdir was missing.
320 - aio_load did return undef on error, not -1.
321 - use prefixexp not prefix in autoconf.pm
322 (suggested by ... rt.cpan.org unreachable).
323 - avoid installing autoconf.pm.
324
3252.31 Sat Jan 6 03:46:02 CET 2007
326 - added aio_load.
327
3282.3 Sat Dec 23 05:48:07 CET 2006
329 - fix off-by-one bug in aio_read, causing memory corruption
330 or crashes.
331
3322.21 Fri Dec 22 05:03:38 CET 2006
333 - minor doc updates.
334 - minor cleanups.
335 - IO::AIO::poll returns request count.
336 - undocumented and unfinished async-signal-reporting.
337
3382.2 Tue Oct 31 00:31:00 CET 2006
339 - minor doc updates.
340 - added aio_readlink.
341 - properly zero-terminate aio_read buffer.
342 - fix aio_read/write with nonzero dataoffset.
343 - reduced size of aio request structure.
344 - better diagnostics when pathnames etc. are not byte-encoded;
345 do not leak request in that case, either.
346
3472.1 Sun Oct 29 02:01:57 CET 2006
348 - INCOMPATIBLE CHANGE: replace IO::AIO::poll_some by
349 IO::AIO::max_poll_reqs and IO::AIO::max_poll_time.
350 - fix a bug in aio_move where it would fail everytime
351 it would have to copy files manually.
352 - doc updates.
353 - start threads only on (very low) demand.
354 - end superfluous threads automatically after 10s idling.
355 - add IO::AIO::max_idle to control this.
356 - some tuning applied to random places.
357 - add aio_mknod.
358
3592.0 Thu Oct 26 18:27:58 CEST 2006
360 - minor incompatibility: max_outstanding semantics have changed.
361 - major rewrite, consider all functionality EXPERIMENTAL.
7 - aio requests can be cancelled. 362 - aio requests can be cancelled.
8 - callbacks can be (re-)set later. 363 - callbacks can be (re-)set later.
9 - aio requests can have choose 9 priorities. 364 - aio requests can choose between 9 priorities.
10 - add aio_group: aio requests can be grouped 365 - add aio_group: aio requests can be grouped
11 into composite requests. 366 into composite requests.
12 - generator interface for groups. 367 - generator interface for groups.
368 - add IO::AIO::poll_some.
13 - major documentation improvements. 369 - major documentation improvements.
14 - very minor bugfixes. 370 - very minor bugfixes.
15 - add aio_nop for dummy requests. 371 - add aio_nop for dummy requests.
16 - add aio_busy mainly for benchmarking and debugging. 372 - add aio_busy mainly for benchmarking and debugging.
17 - deprecated max_outstanding.
18 - use "fast" mutexes on linux. 373 - use "fast" mutexes on linux.
19 - use dynamic (and larger) buffers instead of 374 - use dynamic (and larger) buffers instead of
20 putting them onto the stack. 375 putting them onto the stack.
21 - optimise x86 and amd64 a bit. 376 - optimise x86 and amd64 a bit.
22 - better error checking when ENOMEM. 377 - better error checking when ENOMEM.
23 - hopefully fix mem and dirp leaks on fork. 378 - hopefully fix mem and dirp leaks on fork.
379 - warn about broken perl malloc.
380 - compiles on cygwin (but pread is broken on cygwin
381 which is not detected by autoconf, so you have to
382 edit autoconf/config.h yourself to enable emulation).
24 383
251.8 Sat Jun 24 22:20:44 CEST 2006 3841.8 Sat Jun 24 22:20:44 CEST 2006
26 - add and/or document aio_rename, aio_link, aio_symlink and aio_move. 385 - add and/or document aio_rename, aio_link, aio_symlink and aio_move.
27 386
281.73 Wed Mar 1 22:49:32 CET 2006 3871.73 Wed Mar 1 22:49:32 CET 2006
62 - somebody nagged about C89 compatibility, so this release should 421 - somebody nagged about C89 compatibility, so this release should
63 be C89 compatible, but no guarantees for future ones. 422 be C89 compatible, but no guarantees for future ones.
64 - abort when the configure script fails. 423 - abort when the configure script fails.
65 424
661.4 Wed Aug 17 08:07:27 CEST 2005 4251.4 Wed Aug 17 08:07:27 CEST 2005
67 - forget to recreate the pipe after forking, this could cause 426 - forgot to recreate the pipe after forking, this could cause
68 deadlocks. 427 deadlocks.
69 428
701.3 Wed Aug 17 07:25:54 CEST 2005 4291.3 Wed Aug 17 07:25:54 CEST 2005
71 - properly propagate exceptions from callbacks, instead of silently 430 - properly propagate exceptions from callbacks, instead of silently
72 eating them. 431 eating them.

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