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Comparing IO-AIO/Changes (file contents):
Revision 1.99 by root, Sun Oct 29 01:03:13 2006 UTC vs.
Revision 1.286 by root, Sat Jan 7 18:42:43 2012 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_cp/mvtree/rmtree 4TODO: aio_cptree/mvtree
5TODO: aio_utime, aio_chmod, aio_chown? 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: aio_mincore?
9TODO: getxattr etc.?
10TODO: F_DUPFD_CLOEXEC
11
12 - fix stat structure usage on windows, which caused bogus stat results.
13
144.12 Fri Dec 30 08:51:25 CET 2011
15 - realpath would return a random value if the name was too long,
16 instead of -1.
17 - port to c89.
18
194.11 Mon Oct 10 00:24:11 CEST 2011
20 - libeio didn't compile on !linux (Paul Howarth).
21
224.1 Sun Oct 9 10:24:11 CEST 2011
23 - IO::AIO did access uninitialised memory on unsuccessful stats.
24 - (libeio) added syncfs syscall wrapper.
25 - (libeio) set thread name on linux (ps -L/Hcx, top, gdb).
26 - (libeio) support multiple indepenent working directories.
27 - applied speling corrections by Nicholas Bamber.
28 - tune treescan #threads and #outstanding requests a bit.
29 - reduce the number of file descriptors in use at any one time
30 in treescan, to avoid running out of them (and using too much ram).
31 - take advantage of working directoriy abstractions
32 in aio_scandir and treescan.
33 - reduce compiled size by ~10% by not inlining some key functionality.
34 - added --progress switch to treescan.
35
364.0 Mon Jul 18 05:01:10 CEST 2011
37 - INCOMPATIBLE CHANGE: fork is no longer supported (indeed, it never was),
38 see FORK BEHAVIOUR in manpage for details.
39 - passes testsuite on win32 now and may actually work
40 (activestate 5.10.1 / MSVC6, YMMV).
41 - (libeio) fix a deadlock where a wakeup signal could be missed when
42 a timeout occured at the same time.
43 - (libeio) added realpath.
44 - (libeio) added fallocate.
45 - (libeio) disabling sendfile on darwin unfortunately broke the emulation.
46 - (libeio) do not acquire any locks when forking.
47 - (libeio) use fewer time() syscalls when waiting for new requests.
48
493.93 Wed Jun 29 23:44:18 CEST 2011
50 - ECB.H WAS MISSING.
51
523.92 Wed Jun 29 14:45:41 CEST 2011
53 - ecb.h was missing.
54
553.91 Wed Jun 29 13:24:42 CEST 2011
56 - (libeio) work around a Linux (and likely FreeBSD and other
57 kernels) bug where sendfile would not transfer all the requested
58 bytes on large transfers, using a heuristic.
59 - buggy sendfile caused aio_move/copy to sometimes fail for big
60 files (fortunately it checks that the whole file has been
61 transferred...)
62 - use libecb for higher performance and higher portability.
63 - (libeio) disable sendfile on darwin, it's too broken.
64 - disable fork tests on !linux, as only linux supports mixing
65 pthread and fork in perl.
66 - document the fact that fork doesn't work anymore when using
67 this module, on anything !GNU/Linux.
68 - increase timeout in t/04_fork.t, as too many CPAN-tester setups
69 run on a 0.1MHz cpu. Or so.
70
713.9 Fri May 27 02:43:47 CEST 2011
72 - (libeio) fix memory corruption in aio_readdirx for the flags
73 combination READDIR_STAT_ORDER | READDIR_DIRS_FIRST.
74 - add lots of newer POSIX and GNU/Linux-specific open
75 flags.
76
773.8 Sun Mar 27 12:25:33 CEST 2011
78 - use nonstandard but maybe-working-on-bsd fork technique.
79 - support a max_idle value of 0.
80 - support setting of idle timeout value (IO::AIO::idle_timeout).
81
823.72 Fri Feb 11 04:25:38 CET 2011
83 - use _POSIX_MEMLOCK_RANGE to detect mlock/munlock.
84 - aio_mknod always used a dev_t value of 0.
85 - new treescan option: --grep.
86 - add more S_IF macros, and major/minor/makedev "macros".
87
883.71 Thu Dec 30 08:18:46 CET 2010
89 - the numerical result value passed to callbacks did not stringify
90 correctly, due to internal reuse and failure to reset the sv flags.
91 - actually test for posix_[mf]advise, as at least uClibc defines
92 _POSIX_ADVISORY_INFO without actually having any of the required
93 funcitonality. ugh.
94
953.7 Mon Nov 1 23:00:34 CET 2010
96 - implement/add madvise, mmap, munmap, aio_mlockall, munlockall,
97 aio_mlock, munlock, msync and mtouch to @EXPORT_OK.
98 - document the sad state of affairs w.r.t. pthread on many bsds.
99 - do not enable mmap on systems without _POSIX_MAPPED_FILES
100 (openbsd 4.8).
101 - do not leak memory in IO::AIO::mmap when the scalar already
102 had string-data.
103 - add O_RDWR, O_APPEND and O_EXCL symbols and semi-document
104 them.
105 - cache the result IV, for a minor speedup in the common case.
106 - croak when an mmapped-scalar changes location, to detect
107 user-errors better.
108 - fix aio_readlink prototype.
109
1103.65 Wed Mar 31 02:45:05 CEST 2010
111 - actually use PATH_MAX instead of NAME_MAX for readlink, as to not
112 cut off long pathnames in aio_readlink (based on patch by
113 Rasmus Andersson).
114 - a double fork partially killed the event pipe (great testcase
115 by dormando). affects IO::AIO, BDB and Async::Interrupt.
116 - suck steve's dick and rename our symbols to avoid colliding
117 with nonstandard identifier spam on the broken os x pseudo-os.
118 affects IO::AIO and BDB.
119
1203.6 Mon Jan 11 00:43:39 CET 2010
121 - (libeio) more fixes for the freebsd/apple sendfile - broken by
122 manpage standards, but apparently correct accoridng to actual
123 kernel sources.
124 - add IO::AIO::mmap/munmap support.
125 - add IO::AIO::m(un)lockall support.
126 - clean up manpage.
127
1283.5 Thu Jan 7 21:25:04 CET 2010
129 - (liebio) fix freebsd sendfile (Vanilla Hsu).
130 - (libeio) also fix darwin sendfile that suffered from a similar bug.
131 - add aio_statvfs as interface to statvfs/fstatvfs.
132 - work around buggy symlink() on cygwin in the testsuite.
133 - wtf. freebsd-8.0 actually passes the testsuite! I knew
134 they could implement fork and semaphores one day! cheers!
135
1363.4 Sat Jan 2 15:13:04 CET 2010
137 - (libeio) max_poll_time was not properly converted to ticks.
138 - clarify cancel_subs description.
139 - IO::AIO::sendfile did not actually return the return value
140 from the sendfile call.
141 - implement aio_msync, aio_mtouch.
142 - (libeio) tentatively support darwin in sendfile.
143
1443.31 Thu Nov 12 02:14:29 CET 2009
145 - fix result status documentation of aio_copy, aio_move.
146 - speed up object creation considerably by avoiding
147 hash lookups.
148
1493.3 Wed Aug 5 13:52:58 CEST 2009
150 - use common::sense.
151 - use common schmorp.h header.
152 - allow integers (file descriptors) in addition to file handles.
153 - take advantage of linux' eventfd (but it seems slower on smp?).
154 - use poll not select on posix platforms.
155
1563.261 Wed Jul 1 10:11:51 CEST 2009
157 - more 0S X workarounds (patch by Tokuhiro Matsuno).
158
1593.26 Tue Jun 30 09:33:26 CEST 2009
160 - 0S X of course claims to be posix 2008 but lacks posix_fadvise.
161 try to work around this horribly broken OS in a somewhat hackish
162 way. might help other os's too.
163
1643.25 Sat Jun 27 05:18:26 CEST 2009
165 - added IO::AIO::fadvise and IO::AIO::sendfile.
166 - (libeio) replaced quicksort+insertion sort by a tuned radix
167 sort + insertion sort, resulting in comparable runtime (usually
168 faster) to the old version, but without any ill side effects on
169 degenerated (for quicksort) data.
170 - (libeio) correctly sort dirs by inodes if we have perfect type
171 knowledge and DIRS_FIRST is used.
172 - (libeio) internally the wrong DT_* constants were used, but no
173 known system has differing EIO_DT_*/DT_* values, so not an issue.
174 - removed a (harmless) assert that was left over on the code
175 but should not have been.
176 - use more correct types (change IO length from IV to VAL64,
177 which makes a difference on systems without 64 bit perls).
178
1793.23 Sat Jun 13 16:57:58 CEST 2009
180 - fix off-by-one bug in aio_readdir that was introduced in the
181 rushed 3.22 release.
182
1833.22 Sat Jun 13 15:32:40 CEST 2009
184 - speed up readdirx sort algorithm slightly.
185 - bin/treescan was missing from distro tarball.
186
1873.21 Fri Jun 12 18:45:53 CEST 2009
188 - new options --dirs and --files for treescan.
189 - install bin/treescan by default.
190 - (libeio) aio_readdir can now be cancelled while executing.
191 - fix a printf format string for 64 bit systems (could lead
192 to problems on big endian 64 bit systems).
193 - do not use qsort() but our own algorithm: glibc initialises
194 the whole locale and I/O subsystem inside qsort, causing
195 a stack overflow on 32 bit machines. The new sort uses much less
196 stack and is more than twice as fast in typical situations.
197
1983.2 Sun Jun 7 20:30:05 CEST 2009
199 - (libeio) pwrite emulation was even more flawed than intended and did
200 not restore the file offset.
201 - add aio_readdirx, which can return inode and filetype and sort
202 the names in various ways.
203 - unfortunately, utime, chmod, chown on an open file that has just
204 been written can easily block, which caused aio_copy to block the
205 process. no more!
206 - no longer rely on dst path in aio_copy when futime is available.
207
2083.19 Tue Apr 21 22:05:21 CEST 2009
209 - more perl 5.10 workarounds for aio_read and write.
210 - aio_write no longer modifies the sv (if possible).
211 - aio_read now works correctly with magic values.
212
2133.18 Sun Apr 19 21:17:32 CEST 2009
214 - better diagnostics when some aio_* functions get passed an illegal fh.
215 - try to avoid crashes due to incompatible 5.10 API changes. grmbl.
216
2173.17 Thu Nov 20 08:45:36 CET 2008
218 - (libeio) added aio_sync_file_range (untested).
219 - add aio_busy to @IO::AIO::AIO_REQ.
220
2213.16 Wed Oct 22 18:28:01 CEST 2008
222 - use SvREFCNT_inc instead of SvREFCNT_inc_NN in a non-speed critical
223 part to improve portability to perl 5.8 (reported by szymon).
224
2253.15 Mon Oct 13 00:39:55 CEST 2008
226 - automatic removal of feeders was broken.
227 - (libeio) use a more robust method to detect whether a feeder
228 has added something to the group or not.
229
2303.1 Thu Oct 2 13:34:40 CEST 2008
231 - pre-deref the passed callback object, for increased speed
232 and decreased memory usage.
233 - call on_next_submit callback even for aio_group - impact unknown,
234 but seems more correct.
235 - $req->cb now returns the original callback.
236 - (libeio) pass EIO_GROUP/aio_group requests through the queue without
237 requiring a thread switch.
238 - (libeio) status code of aio_futime and aio_utime was always passed 0.
239 - do some other ยต-optimisations.
240
2413.07 Sat Aug 2 16:06:13 CEST 2008
242 - do not include LIBS in autoconf tests.
243
2443.06 Tue Jul 15 12:41:32 CEST 2008
245 - move preadwritelock definition before it's first reference,
246 to make it compile again on broken platforms (they still exist)
247 or badly cofngiured perls (redhat...), reported by Rob Bloodgood.
248
2493.05 Thu Jun 19 23:23:52 CEST 2008
250 - work around perl overriding readdir etc. with thread-unsafe
251 (sic!) versions.
252
2533.04 Wed Jun 18 01:35:38 CEST 2008
254 - (libeio) fix eio_mknod, which confused it's arguments.
255 - (libeio) do not use readdir_r, as Ulrich Drepper pointed out that this
256 is stupid.
257 - (libeio) fix eio__readahead prototype, patch by Jost Krieger.
258 - (libeio) fix a bug that could potentially cause IO::AIO
259 not to get initialised properly.
260
2613.03 Thu May 29 05:33:30 CEST 2008
262 - (libeio) correctly call pthread_attr_destroy ().
263 - (libeio) work around broken bsd headers once more.
264 - reduce shared library size again by not including wrappers.
265 - max_outstanding could cause poll to enter a busy-waiting loop.
266 - document the new IO::AIO::poll_cb result value.
267
2683.02 Mon May 12 02:32:02 CEST 2008
269 - fix a memory leak on aio_readlink.
270 - bring back working fchmod.
271 - nop and busy now set result to 0.
272 - set errno to ENOMEM when allocation fails.
273
2743.01 Sun May 11 03:07:03 CEST 2008
275 - (libeio) make it compile on systems without readahead or readdir_r.
276 - (libeio) improve configure check for readahead availability.
277 - do not try to link against -lrt.
278 - use a separate configure script for IO::AIO (not the libeio one).
279
2803.0 Sun May 11 00:57:14 CEST 2008
281 - added bin/treescan to the distribution.
282 - switched to using libeio.
283 - LOTS OF INCOMPATIBLE CHANGES:
284 - remove signal functionality, it is not worth the effort.
285 - max_outstanding no longer returns the previous number of requests.
286 - poll_cb no longer returns number of requests.
287
2882.62 Sat Apr 26 13:59:33 CEST 2008
289 - port to solaris perls configured for old posix
290 (analysed by Jost Krieger).
291 - keep a reference to the perl filehandle object in aio_close,
292 so it doesn't get closed prematurely, leading to ugly races.
293
2942.61 Wed Apr 16 18:45:02 CEST 2008
295 - fix treescan output duplication and improve output ordering.
296 also display files given on the commandline.
297 - use a different algorithm for aio_close that is faster
298 and probably has even lower chances of blocking.
299 - do our own stack memory management for threads - linux
300 allocates outrageous amounts of VM (not so bad unless you
301 use mlockall...), which severely limits the number of threads
302 on 32-bit arches: stack size is the larger of PTHREAD_STACK_MIN
303 and 4096 * sizeof (long) (usually this is 16..64k).
304
3052.6 Sun Mar 30 08:28:11 CEST 2008
306 - added aio_sync.
307 - added aio_pathsync.
308 - fix prototypes of (void) functions.
309
3102.51 Sat Oct 6 16:04:54 CEST 2007
311 - perlio isn't generally threadsafe, so aio_close could not work reliably.
312 aio_close now tries a safe hack that might not be that asynchronous
313 (see the manpage for details).
314 - discard callback return values as to not grow the stack endlessly
315 when poll_cb handles many requests without returning.
316 - minor code cleanups.
317
3182.5 Thu Oct 4 14:49:08 CEST 2007
319 - replaced _fd2fh with faster xs code.
320 - aio_close will now try to do "the right thing" and thus might
321 work sensibly for the very first time.
322
3232.41 Mon Sep 24 21:28:21 CEST 2007
324 - after fork, invest some work to make sure that the poll_fileno
325 stays stable (by dup2'ing the new fd over the old one), to make
326 it easier for programs/libs that don't control their forking
327 behaviour and cannot recreate their watchers.
328
3292.4 Sun Aug 5 18:44:22 CEST 2007
330 - add aio_truncate, aio_chmod, aio_chown, aio_utime (linux
331 successfully demonstrated that you can block on futimes...).
332 - allow undef as fileoffset for aio_read/write and use read/write(2)
333 internally (useful for sockets or O_APPEND handles).
334 - allow undef for length in aio_write.
335 - negative dataoffsets work as expected now in aio_read/aio_write.
336 - use NV instead of UV for 32 bit perls and file offsets, as NVs
337 have a larger range then.
338 - shared code between BDB and IO::AIO.
339 - aio_busy was completely broken. now fixed.
340 - readahead emulation now returns something.
341 - correctly set errno to ENOSYS on unimplemented functions
342 (should never happen, though).
343 - large changes to make it partially compile and run on win32,
344 but win32 lacks too much functionality, and perl overrides way
345 too many functions with crashing versions.
346
3472.33 Tue Jan 23 23:55:41 CET 2007
348 - fix install path (Andreas J. Koenig).
349
3502.32 Mon Jan 22 16:56:23 CET 2007
351 - added aio_rmtree.
352 - wow, aio_mkdir was missing.
353 - aio_load did return undef on error, not -1.
354 - use prefixexp not prefix in autoconf.pm
355 (suggested by ... rt.cpan.org unreachable).
356 - avoid installing autoconf.pm.
357
3582.31 Sat Jan 6 03:46:02 CET 2007
359 - added aio_load.
360
3612.3 Sat Dec 23 05:48:07 CET 2006
362 - fix off-by-one bug in aio_read, causing memory corruption
363 or crashes.
364
3652.21 Fri Dec 22 05:03:38 CET 2006
366 - minor doc updates.
367 - minor cleanups.
368 - IO::AIO::poll returns request count.
369 - undocumented and unfinished async-signal-reporting.
370
3712.2 Tue Oct 31 00:31:00 CET 2006
372 - minor doc updates.
373 - added aio_readlink.
374 - properly zero-terminate aio_read buffer.
375 - fix aio_read/write with nonzero dataoffset.
376 - reduced size of aio request structure.
377 - better diagnostics when pathnames etc. are not byte-encoded;
378 do not leak request in that case, either.
6 379
72.1 Sun Oct 29 02:01:57 CET 2006 3802.1 Sun Oct 29 02:01:57 CET 2006
8 - INCOMPATIBLE CHANGE: replace IO::AIO::poll_some by 381 - INCOMPATIBLE CHANGE: replace IO::AIO::poll_some by
9 IO::AIO::max_poll_reqs and IO::AIO::max_poll_time. 382 IO::AIO::max_poll_reqs and IO::AIO::max_poll_time.
10 - fix a bug in aio_move where it would fail everytime 383 - fix a bug in aio_move where it would fail everytime

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