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Comparing IO-AIO/Changes (file contents):
Revision 1.112 by root, Sun Dec 31 17:07:32 2006 UTC vs.
Revision 1.321 by root, Sat Jun 13 00:06:13 2015 UTC

1Revision history for IO::AIO 1Revision history for IO::AIO
2 2
3TODO: better autoconf.pm that can return LIBS etc. 3TODO: scandir - some dirs mostly contain subdirs - invert logic?
4TODO: aio_cptree/mvtree/rmtree 4TODO: aio_cptree/mvtree
5TODO: aio_utime, aio_chmod, aio_chown? should simply stat/open first?
6TODO: reduce condvar fairness: schedule hot-cache-threads first? 5TODO: reduce condvar fairness: schedule hot-cache-threads first?
7TODO: fix setsig 6TODO: 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
11TODO: emulation for splice?
12TODO: eio_mmap|mlock|munmap|splice...
13TODO: syncfs/sync windows:
14TODO: F_SETPIPE_SZ, F_GETPIPE_SZ
15TODO: posix_fallocate when flags=0
16http://stackoverflow.com/questions/65170/how-to-get-name-associated-with-open-handle/5286888#5286888
17http://blogs.msdn.com/b/adioltean/archive/2005/04/16/408947.aspx
18http://msdn.microsoft.com/en-us/library/aa366789%28v=vs.85%29.aspx
19http://msdn.microsoft.com/en-us/library/windows/desktop/aa366789%28v=vs.85%29.aspx
20http://msdn.microsoft.com/en-us/library/windows/desktop/aa364425%28v=vs.85%29.aspx
21http://msdn.microsoft.com/en-us/library/windows/desktop/aa364963%28v=vs.85%29.aspx
22http://msdn.microsoft.com/en-us/library/windows/desktop/aa364996%28v=vs.85%29.aspx
23http://msdn.microsoft.com/en-us/library/windows/desktop/aa364994%28v=vs.85%29.aspx
24TODO: extra socket/tcp constants &c?
25TODO: getrandom, GRND_NONBLOCK, GRND_NONBLOCK
26TODO: http://lwn.net/Articles/593918/ SHMEM_SET_SEALS, SHMEM_GET_SEALS, SEAL_SHRINK, SEAL_GROW, SEAL_WRITE, int memfd_create(const char *name, u64 size, u64 flags);, MFD_CLOEXEC, int fd = open("/tmp", O_RDWR | O_TMPFILE | O_EXCL, S_IRWXU);
27TODO: O_TMPFILE
28TODO: FALLOC_FL_COLLAPSE_RANGE
29TODO: FALLOC_FL_ZERO_RANGE
30TODO: renameat RENAME_EXCHANGE, RENAME_NOREPLACE, RENAME_EXCHANGE
31TODO: fcntl F_GETLKP/F_SETLKP/F_SETLKPW, http://lwn.net/Articles/586904/
32TODO: flink + AT_EMPTY_PATH
33TODO: name_to_handle_At + open_by_handle_at = clone fds
8 34
92.31 35TODO: rewrite rmtree et al. to support working directories (also speed them up)
36TODO: maybe IO::AIO leaks fds when requests are cancelled? maybe initialise result to -1?
37
38 - use NO_INIT where applicable.
39 - update libecb.
40 - added stability canary support.
41 - added support for FALLOC_FL_COLLAPSE_RANGE and FALLOC_FL_ZERO_RANGE
42 constants.
43
444.32 Wed Feb 11 20:32:11 CET 2015
45 - replace off_t by STRLEN where appropriate, should not result in
46 user-visible changes.
47 - update ecb.h for C11 compatibility.
48
494.31 Tue Jun 3 03:29:27 CEST 2014
50 - work around more 5.20 bugs. backwards compatibility my ass.
51
524.3 Fri Apr 11 06:22:38 CEST 2014
53 - perl5porters broke Async::Interrupt, BDB, EV, IO::AIO, OpenCL
54 without warning by switching the meaning of USE_SOCKETS_AS_HANDLES
55 in 5.18. What's so attractive about giving a shit about backwards
56 compatibility - I will never understand.
57
584.2 Sat Jan 25 01:13:14 CET 2014
59 - aio_group could corrupt memory because it didn't restore
60 the stack after req_submit.
61 - be more careful on (e.g. permission) errors in bin/treescan.
62 - work around changes in ExtUtils::MakeMaker.
63 - (libeio) implement aio_realpath for win32.
64 - (xthread) work around compile time bugs in ptw32.
65 - added IO::AIO::pipesize.
66 - (libecb) insignificant update.
67
684.19 Sun Jan 6 12:47:26 CET 2013
69 - avoid endless loop in fiemap with some XFS files.
70 - in aio_rename and aio_rmdir, specialcase the case of [$wd, "."]
71 and call rename/rmdir instead of renameat/unlinkat.
72
734.18 Thu Oct 11 07:01:26 CEST 2012
74 - fix unintended xthread_create by intentionalising it :)
75
764.17 Thu Oct 11 05:19:47 CEST 2012
77 - rename aio_fallocate to aio_allocate, to match documentation.
78 - add list of linux fsid values to aio_statvfs docs.
79 - work around a bug in btrfs' FIEMAP ioctl implementation.
80 - work around AIX bug: statvfs.f_fsid is a struct, not unsigned long
81 as per unix spec.
82
834.16 Tue Aug 14 05:39:03 CEST 2012
84 - aio_statvfs was wromgly marked for wd emulation, causing
85 it to malfunction for paths.
86 - fix a crash in aio_fiemap, when used on ranges without any
87 extents.
88 - work around linux kernel bug (at least in 3.2): kernel might
89 trash fiemap input arguments.
90 - work around linux kernel bug (at least in 3.2): kernel does not
91 set FIEMAP_EXTENT_LAST on last segment.
92 - work around linux kernel bug (at least in 3.2): kernel silently
93 truncates segment count if a file.
94 - make fh argument of IO::AIO::mmap optional, also add mmap/munmap
95 to quick overview.
96 - splice can corrupt data.
97 - (libeio) remove pread/pwrite emulation.
98 - do not grow mmaped scalars in aio_read.
99 - add FALLOC_FL_PUNCH_HOLE and document fallocate.
100 - provide pread/pwrite for win32, making it link again on native win32.
101
1024.15 Tue Apr 10 06:59:00 CEST 2012
103 - always include linux/types.h for fiemap, for compatibility to
104 ancient systems (Paul Howarth).
105 - experimental support for IO::AIO::splice and ::tee (no aio_...).
106 - provide SEEK_HOLE and SEEK_DATA, if available.
107 - work around (again!) an immensely stupid bug in RHEL, defining
108 autoconf macros in linux system headers (analysed by Paul Howarth).
109
1104.14 Sat Apr 7 02:45:18 CEST 2012
111 - fix stat structure usage on windows, which caused bogus stat results.
112 - (libeio) make readahead emulation behave more like actual readahead by never failing.
113 - new request aio_seek.
114 - new request aio_fiemap.
115 - autogenerate the #ifdef/#define 0 blocks for symbols we export.
116
1174.12 Fri Dec 30 08:51:25 CET 2011
118 - realpath would return a random value if the name was too long,
119 instead of -1.
120 - port to c89.
121
1224.11 Mon Oct 10 00:24:11 CEST 2011
123 - libeio didn't compile on !linux (Paul Howarth).
124
1254.1 Sun Oct 9 10:24:11 CEST 2011
126 - IO::AIO did access uninitialised memory on unsuccessful stats.
127 - (libeio) added syncfs syscall wrapper.
128 - (libeio) set thread name on linux (ps -L/Hcx, top, gdb).
129 - (libeio) support multiple indepenent working directories.
130 - applied speling corrections by Nicholas Bamber.
131 - tune treescan #threads and #outstanding requests a bit.
132 - reduce the number of file descriptors in use at any one time
133 in treescan, to avoid running out of them (and using too much ram).
134 - take advantage of working directoriy abstractions
135 in aio_scandir and treescan.
136 - reduce compiled size by ~10% by not inlining some key functionality.
137 - added --progress switch to treescan.
138
1394.0 Mon Jul 18 05:01:10 CEST 2011
140 - INCOMPATIBLE CHANGE: fork is no longer supported (indeed, it never was),
141 see FORK BEHAVIOUR in manpage for details.
142 - passes testsuite on win32 now and may actually work
143 (activestate 5.10.1 / MSVC6, YMMV).
144 - (libeio) fix a deadlock where a wakeup signal could be missed when
145 a timeout occured at the same time.
146 - (libeio) added realpath.
147 - (libeio) added fallocate.
148 - (libeio) disabling sendfile on darwin unfortunately broke the emulation.
149 - (libeio) do not acquire any locks when forking.
150 - (libeio) use fewer time() syscalls when waiting for new requests.
151
1523.93 Wed Jun 29 23:44:18 CEST 2011
153 - ECB.H WAS MISSING.
154
1553.92 Wed Jun 29 14:45:41 CEST 2011
156 - ecb.h was missing.
157
1583.91 Wed Jun 29 13:24:42 CEST 2011
159 - (libeio) work around a Linux (and likely FreeBSD and other
160 kernels) bug where sendfile would not transfer all the requested
161 bytes on large transfers, using a heuristic.
162 - buggy sendfile caused aio_move/copy to sometimes fail for big
163 files (fortunately it checks that the whole file has been
164 transferred...)
165 - use libecb for higher performance and higher portability.
166 - (libeio) disable sendfile on darwin, it's too broken.
167 - disable fork tests on !linux, as only linux supports mixing
168 pthread and fork in perl.
169 - document the fact that fork doesn't work anymore when using
170 this module, on anything !GNU/Linux.
171 - increase timeout in t/04_fork.t, as too many CPAN-tester setups
172 run on a 0.1MHz cpu. Or so.
173
1743.9 Fri May 27 02:43:47 CEST 2011
175 - (libeio) fix memory corruption in aio_readdirx for the flags
176 combination READDIR_STAT_ORDER | READDIR_DIRS_FIRST.
177 - add lots of newer POSIX and GNU/Linux-specific open
178 flags.
179
1803.8 Sun Mar 27 12:25:33 CEST 2011
181 - use nonstandard but maybe-working-on-bsd fork technique.
182 - support a max_idle value of 0.
183 - support setting of idle timeout value (IO::AIO::idle_timeout).
184
1853.72 Fri Feb 11 04:25:38 CET 2011
186 - use _POSIX_MEMLOCK_RANGE to detect mlock/munlock.
187 - aio_mknod always used a dev_t value of 0.
188 - new treescan option: --grep.
189 - add more S_IF macros, and major/minor/makedev "macros".
190
1913.71 Thu Dec 30 08:18:46 CET 2010
192 - the numerical result value passed to callbacks did not stringify
193 correctly, due to internal reuse and failure to reset the sv flags.
194 - actually test for posix_[mf]advise, as at least uClibc defines
195 _POSIX_ADVISORY_INFO without actually having any of the required
196 funcitonality. ugh.
197
1983.7 Mon Nov 1 23:00:34 CET 2010
199 - implement/add madvise, mmap, munmap, aio_mlockall, munlockall,
200 aio_mlock, munlock, msync and mtouch to @EXPORT_OK.
201 - document the sad state of affairs w.r.t. pthread on many bsds.
202 - do not enable mmap on systems without _POSIX_MAPPED_FILES
203 (openbsd 4.8).
204 - do not leak memory in IO::AIO::mmap when the scalar already
205 had string-data.
206 - add O_RDWR, O_APPEND and O_EXCL symbols and semi-document
207 them.
208 - cache the result IV, for a minor speedup in the common case.
209 - croak when an mmapped-scalar changes location, to detect
210 user-errors better.
211 - fix aio_readlink prototype.
212
2133.65 Wed Mar 31 02:45:05 CEST 2010
214 - actually use PATH_MAX instead of NAME_MAX for readlink, as to not
215 cut off long pathnames in aio_readlink (based on patch by
216 Rasmus Andersson).
217 - a double fork partially killed the event pipe (great testcase
218 by dormando). affects IO::AIO, BDB and Async::Interrupt.
219 - suck steve's dick and rename our symbols to avoid colliding
220 with nonstandard identifier spam on the broken os x pseudo-os.
221 affects IO::AIO and BDB.
222
2233.6 Mon Jan 11 00:43:39 CET 2010
224 - (libeio) more fixes for the freebsd/apple sendfile - broken by
225 manpage standards, but apparently correct accoridng to actual
226 kernel sources.
227 - add IO::AIO::mmap/munmap support.
228 - add IO::AIO::m(un)lockall support.
229 - clean up manpage.
230
2313.5 Thu Jan 7 21:25:04 CET 2010
232 - (liebio) fix freebsd sendfile (Vanilla Hsu).
233 - (libeio) also fix darwin sendfile that suffered from a similar bug.
234 - add aio_statvfs as interface to statvfs/fstatvfs.
235 - work around buggy symlink() on cygwin in the testsuite.
236 - wtf. freebsd-8.0 actually passes the testsuite! I knew
237 they could implement fork and semaphores one day! cheers!
238
2393.4 Sat Jan 2 15:13:04 CET 2010
240 - (libeio) max_poll_time was not properly converted to ticks.
241 - clarify cancel_subs description.
242 - IO::AIO::sendfile did not actually return the return value
243 from the sendfile call.
244 - implement aio_msync, aio_mtouch.
245 - (libeio) tentatively support darwin in sendfile.
246
2473.31 Thu Nov 12 02:14:29 CET 2009
248 - fix result status documentation of aio_copy, aio_move.
249 - speed up object creation considerably by avoiding
250 hash lookups.
251
2523.3 Wed Aug 5 13:52:58 CEST 2009
253 - use common::sense.
254 - use common schmorp.h header.
255 - allow integers (file descriptors) in addition to file handles.
256 - take advantage of linux' eventfd (but it seems slower on smp?).
257 - use poll not select on posix platforms.
258
2593.261 Wed Jul 1 10:11:51 CEST 2009
260 - more 0S X workarounds (patch by Tokuhiro Matsuno).
261
2623.26 Tue Jun 30 09:33:26 CEST 2009
263 - 0S X of course claims to be posix 2008 but lacks posix_fadvise.
264 try to work around this horribly broken OS in a somewhat hackish
265 way. might help other os's too.
266
2673.25 Sat Jun 27 05:18:26 CEST 2009
268 - added IO::AIO::fadvise and IO::AIO::sendfile.
269 - (libeio) replaced quicksort+insertion sort by a tuned radix
270 sort + insertion sort, resulting in comparable runtime (usually
271 faster) to the old version, but without any ill side effects on
272 degenerated (for quicksort) data.
273 - (libeio) correctly sort dirs by inodes if we have perfect type
274 knowledge and DIRS_FIRST is used.
275 - (libeio) internally the wrong DT_* constants were used, but no
276 known system has differing EIO_DT_*/DT_* values, so not an issue.
277 - removed a (harmless) assert that was left over on the code
278 but should not have been.
279 - use more correct types (change IO length from IV to VAL64,
280 which makes a difference on systems without 64 bit perls).
281
2823.23 Sat Jun 13 16:57:58 CEST 2009
283 - fix off-by-one bug in aio_readdir that was introduced in the
284 rushed 3.22 release.
285
2863.22 Sat Jun 13 15:32:40 CEST 2009
287 - speed up readdirx sort algorithm slightly.
288 - bin/treescan was missing from distro tarball.
289
2903.21 Fri Jun 12 18:45:53 CEST 2009
291 - new options --dirs and --files for treescan.
292 - install bin/treescan by default.
293 - (libeio) aio_readdir can now be cancelled while executing.
294 - fix a printf format string for 64 bit systems (could lead
295 to problems on big endian 64 bit systems).
296 - do not use qsort() but our own algorithm: glibc initialises
297 the whole locale and I/O subsystem inside qsort, causing
298 a stack overflow on 32 bit machines. The new sort uses much less
299 stack and is more than twice as fast in typical situations.
300
3013.2 Sun Jun 7 20:30:05 CEST 2009
302 - (libeio) pwrite emulation was even more flawed than intended and did
303 not restore the file offset.
304 - add aio_readdirx, which can return inode and filetype and sort
305 the names in various ways.
306 - unfortunately, utime, chmod, chown on an open file that has just
307 been written can easily block, which caused aio_copy to block the
308 process. no more!
309 - no longer rely on dst path in aio_copy when futime is available.
310
3113.19 Tue Apr 21 22:05:21 CEST 2009
312 - more perl 5.10 workarounds for aio_read and write.
313 - aio_write no longer modifies the sv (if possible).
314 - aio_read now works correctly with magic values.
315
3163.18 Sun Apr 19 21:17:32 CEST 2009
317 - better diagnostics when some aio_* functions get passed an illegal fh.
318 - try to avoid crashes due to incompatible 5.10 API changes. grmbl.
319
3203.17 Thu Nov 20 08:45:36 CET 2008
321 - (libeio) added aio_sync_file_range (untested).
322 - add aio_busy to @IO::AIO::AIO_REQ.
323
3243.16 Wed Oct 22 18:28:01 CEST 2008
325 - use SvREFCNT_inc instead of SvREFCNT_inc_NN in a non-speed critical
326 part to improve portability to perl 5.8 (reported by szymon).
327
3283.15 Mon Oct 13 00:39:55 CEST 2008
329 - automatic removal of feeders was broken.
330 - (libeio) use a more robust method to detect whether a feeder
331 has added something to the group or not.
332
3333.1 Thu Oct 2 13:34:40 CEST 2008
334 - pre-deref the passed callback object, for increased speed
335 and decreased memory usage.
336 - call on_next_submit callback even for aio_group - impact unknown,
337 but seems more correct.
338 - $req->cb now returns the original callback.
339 - (libeio) pass EIO_GROUP/aio_group requests through the queue without
340 requiring a thread switch.
341 - (libeio) status code of aio_futime and aio_utime was always passed 0.
342 - do some other ยต-optimisations.
343
3443.07 Sat Aug 2 16:06:13 CEST 2008
345 - do not include LIBS in autoconf tests.
346
3473.06 Tue Jul 15 12:41:32 CEST 2008
348 - move preadwritelock definition before it's first reference,
349 to make it compile again on broken platforms (they still exist)
350 or badly cofngiured perls (redhat...), reported by Rob Bloodgood.
351
3523.05 Thu Jun 19 23:23:52 CEST 2008
353 - work around perl overriding readdir etc. with thread-unsafe
354 (sic!) versions.
355
3563.04 Wed Jun 18 01:35:38 CEST 2008
357 - (libeio) fix eio_mknod, which confused it's arguments.
358 - (libeio) do not use readdir_r, as Ulrich Drepper pointed out that this
359 is stupid.
360 - (libeio) fix eio__readahead prototype, patch by Jost Krieger.
361 - (libeio) fix a bug that could potentially cause IO::AIO
362 not to get initialised properly.
363
3643.03 Thu May 29 05:33:30 CEST 2008
365 - (libeio) correctly call pthread_attr_destroy ().
366 - (libeio) work around broken bsd headers once more.
367 - reduce shared library size again by not including wrappers.
368 - max_outstanding could cause poll to enter a busy-waiting loop.
369 - document the new IO::AIO::poll_cb result value.
370
3713.02 Mon May 12 02:32:02 CEST 2008
372 - fix a memory leak on aio_readlink.
373 - bring back working fchmod.
374 - nop and busy now set result to 0.
375 - set errno to ENOMEM when allocation fails.
376
3773.01 Sun May 11 03:07:03 CEST 2008
378 - (libeio) make it compile on systems without readahead or readdir_r.
379 - (libeio) improve configure check for readahead availability.
380 - do not try to link against -lrt.
381 - use a separate configure script for IO::AIO (not the libeio one).
382
3833.0 Sun May 11 00:57:14 CEST 2008
384 - added bin/treescan to the distribution.
385 - switched to using libeio.
386 - LOTS OF INCOMPATIBLE CHANGES:
387 - remove signal functionality, it is not worth the effort.
388 - max_outstanding no longer returns the previous number of requests.
389 - poll_cb no longer returns number of requests.
390
3912.62 Sat Apr 26 13:59:33 CEST 2008
392 - port to solaris perls configured for old posix
393 (analysed by Jost Krieger).
394 - keep a reference to the perl filehandle object in aio_close,
395 so it doesn't get closed prematurely, leading to ugly races.
396
3972.61 Wed Apr 16 18:45:02 CEST 2008
398 - fix treescan output duplication and improve output ordering.
399 also display files given on the commandline.
400 - use a different algorithm for aio_close that is faster
401 and probably has even lower chances of blocking.
402 - do our own stack memory management for threads - linux
403 allocates outrageous amounts of VM (not so bad unless you
404 use mlockall...), which severely limits the number of threads
405 on 32-bit arches: stack size is the larger of PTHREAD_STACK_MIN
406 and 4096 * sizeof (long) (usually this is 16..64k).
407
4082.6 Sun Mar 30 08:28:11 CEST 2008
409 - added aio_sync.
410 - added aio_pathsync.
411 - fix prototypes of (void) functions.
412
4132.51 Sat Oct 6 16:04:54 CEST 2007
414 - perlio isn't generally threadsafe, so aio_close could not work reliably.
415 aio_close now tries a safe hack that might not be that asynchronous
416 (see the manpage for details).
417 - discard callback return values as to not grow the stack endlessly
418 when poll_cb handles many requests without returning.
419 - minor code cleanups.
420
4212.5 Thu Oct 4 14:49:08 CEST 2007
422 - replaced _fd2fh with faster xs code.
423 - aio_close will now try to do "the right thing" and thus might
424 work sensibly for the very first time.
425
4262.41 Mon Sep 24 21:28:21 CEST 2007
427 - after fork, invest some work to make sure that the poll_fileno
428 stays stable (by dup2'ing the new fd over the old one), to make
429 it easier for programs/libs that don't control their forking
430 behaviour and cannot recreate their watchers.
431
4322.4 Sun Aug 5 18:44:22 CEST 2007
433 - add aio_truncate, aio_chmod, aio_chown, aio_utime (linux
434 successfully demonstrated that you can block on futimes...).
435 - allow undef as fileoffset for aio_read/write and use read/write(2)
436 internally (useful for sockets or O_APPEND handles).
437 - allow undef for length in aio_write.
438 - negative dataoffsets work as expected now in aio_read/aio_write.
439 - use NV instead of UV for 32 bit perls and file offsets, as NVs
440 have a larger range then.
441 - shared code between BDB and IO::AIO.
442 - aio_busy was completely broken. now fixed.
443 - readahead emulation now returns something.
444 - correctly set errno to ENOSYS on unimplemented functions
445 (should never happen, though).
446 - large changes to make it partially compile and run on win32,
447 but win32 lacks too much functionality, and perl overrides way
448 too many functions with crashing versions.
449
4502.33 Tue Jan 23 23:55:41 CET 2007
451 - fix install path (Andreas J. Koenig).
452
4532.32 Mon Jan 22 16:56:23 CET 2007
454 - added aio_rmtree.
455 - wow, aio_mkdir was missing.
456 - aio_load did return undef on error, not -1.
457 - use prefixexp not prefix in autoconf.pm
458 (suggested by ... rt.cpan.org unreachable).
459 - avoid installing autoconf.pm.
460
4612.31 Sat Jan 6 03:46:02 CET 2007
10 - added aio_load. 462 - added aio_load.
11 463
122.3 Sat Dec 23 05:48:07 CET 2006 4642.3 Sat Dec 23 05:48:07 CET 2006
13 - fix off-by-one bug in aio_read, causing memory corruption 465 - fix off-by-one bug in aio_read, causing memory corruption
14 or crashes. 466 or crashes.

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