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Revision 1.35 by root, Wed Aug 17 03:18:34 2005 UTC vs.
Revision 1.384 by root, Fri Aug 23 07:20:21 2019 UTC

1Revision history for IO::AIO 1Revision history for IO::AIO
2 2
31.3 3TODO: scandir - some dirs mostly contain subdirs - invert logic?
4TODO: aio_cptree/mvtree
5TODO: vmsplice? (http://kerneltrap.org/node/6505 http://lwn.net/Articles/178199/)
6TODO: getxattr, setxattr, listxattr, removexattr etc.?
7TODO: emulation for splice?
8TODO: syncfs/sync windows:
9TODO: posix_fallocate when flags=0
10http://stackoverflow.com/questions/65170/how-to-get-name-associated-with-open-handle/5286888#5286888
11http://blogs.msdn.com/b/adioltean/archive/2005/04/16/408947.aspx
12http://msdn.microsoft.com/en-us/library/aa366789%28v=vs.85%29.aspx
13http://msdn.microsoft.com/en-us/library/windows/desktop/aa366789%28v=vs.85%29.aspx
14http://msdn.microsoft.com/en-us/library/windows/desktop/aa364425%28v=vs.85%29.aspx
15http://msdn.microsoft.com/en-us/library/windows/desktop/aa364963%28v=vs.85%29.aspx
16http://msdn.microsoft.com/en-us/library/windows/desktop/aa364996%28v=vs.85%29.aspx
17http://msdn.microsoft.com/en-us/library/windows/desktop/aa364994%28v=vs.85%29.aspx
18TODO: extra socket/tcp constants &c?
19TODO: name_to_handle_At + open_by_handle_at = clone fds
20TODO: lchown
21TODO: mount/umount2/MS_* flags
22TODO: fsmount/fsconfig et al. https://lwn.net/Articles/759499/
23
24TODO: rewrite rmtree et al. to support working directories (also speed them up)
25TODO: maybe IO::AIO leaks fds when requests are cancelled? maybe initialise result to -1?
26TODO: aio_wd should use O_PATH on linux, due to lacking O_SEARCH (http://comments.gmane.org/gmane.linux.file-systems/33611)
27 http://www.openwall.com/lists/musl/2013/02/23/4
28TODO: copy_file_range, copy_file_range
29TODO: FIDEDUPERANGE, file_ioctl.c
30TODO: mincore
31TODO: SOCK_CLOEXEc etc.
32TODO: unlinkat flags, linkat flags, statat, renameat2 flags
33TODO: https://kernelnewbies.org/Linux_4.11
34TODO: define useful rules for [[$wd, $path], $path] &c and implement them
35TODO: https://github.com/coreutils/coreutils/blob/master/src/stat.c maybe IO::AIO::FSID
36TODO: mlock2, MLOCK_ONFAULT
37TODO: dup3, pipe2, accept4
38TODO: dump config.log when automated testign and configure fails
39TODO: ns time resolution in utime
40TODO: statx
41TODO: pidfd_open/pidfd_send_signal (open/poll /proc?)
42
43 - add various F_SEAL related fcntl constants.
44
454.72 Wed Apr 3 04:56:03 CEST 2019
46 - (libeio) if fd 0 is available do not use it for aio_wd, as it
47 collides with IO::AIO::CWD.
48 - added IO::AIO::memfd_create.
49 - correctly include <sys/uio.h> in the vmsplice test.
50 - reduce codesize by ~7% on amd64 by declaring more functions
51 as noinline.
52 - documentation fixes and updates.
53 - experimental and undocumented preliminary support for synchronous statx.
54
554.71 Sun Mar 10 13:09:26 CET 2019
56 - due to an error in the linux manpages, the configure tests
57 for readahead, sync_file_range, splice etc. failed. This has been fixed.
58
594.7 Mon Mar 4 11:28:13 CET 2019
60 - majorly speed up scandir for the very special case of a non-POSIX
61 filesystem that nevertheless reports valid dt_type information.
62 The only known filesystem of this type is currently btrfs, which
63 didn't get it's act together to implement POSIX semantics in all
64 these years, and I am tired of waiting.
65 - add IO::AIO::MCL_ONFAULT for mlockall, add IO::AIO::mlockall.
66 - neither sys/mkdev.h nor sys/sysmacros.h were included, even when they
67 were detected by autoconf.
68
694.6 Sat Aug 25 21:58:36 CEST 2018
70 - add st_btime, st_btimesec, st_btimensec and st_gen accessors,
71 mostly for bsds which expose birthtime and st_gen members (netbsd, freebsd
72 but only st_gen on openbsd because they compiled their perl without support
73 for birthtimes).
74 - fix madvise and munlock to properly support negative offsets.
75 - allocate fd for the aio_close at boot time, to guarantee it working
76 later, rather than calling abort when it fails. also avoids
77 close-on-exec race issues after module load.
78 - #undef utime on win32, maybe this helps some reports of utime hangs.
79 - minor doc improvements.
80 - minor configure cleanups.
81 - use $Config{perllibs} instead of libs for configure. might help people
82 who didn't install all perl dependencies (might break things as well).
83
844.54 Tue Aug 14 13:54:48 CEST 2018
85 - include sys/mkdev.h or sys/sysmacros.h if available.
86 - further tweaks to configure invocation for systems requiring --rpath.
87 - no longer rely on custom paths on win32 platforms.
88 - try to work around buggy PAGESIZE macro on solaris.
89
904.53 Tue Aug 14 11:27:50 CEST 2018
91 - add $Config{libs} to LIBS for configure, to work around systems
92 with broken library dependencies (... openbsd).
93
944.52 Sun Aug 12 08:09:45 CEST 2018
95 - config.h.in was missing in distribution.
96
974.51 Sun Aug 12 07:24:14 CEST 2018
98 - complete rework of the autoconf framework: IO::AIO now uses its own
99 config.h, separate from libeio, and tries to test the actual perl
100 environment, not the standard system environment.
101 - provide nanosecond-accracy stat time accessors for both perl and IO::AIO
102 stat functions.
103 - removed non-portable C++ syntax from eio.c.
104 - try to fix readdir tests on cygwin spuriously failing.
105
1064.5 Wed Aug 1 00:23:55 CEST 2018
107 - aio_mtouch touch all pages as requested, not just the first page in most cases.
108 - new function: IO::AIO::mremap, linux-specific mremap, with constants MREMAP_MAYMOVE
109 and MREMAP_FIXED.
110 - add O_ACCMODE.
111 - add (undocumented) MSG_CMSG_CLOEXEC and SOCK_CLOEXEC constants.
112
1134.4 Tue Feb 20 07:54:12 CET 2018
114 - new aio_slurp request.
115 - add (experimental) IO::AIO::eventfd and timerfd* function.
116 - add (experimental) IO::AIO::get_fdlimit and IO::AIO::min_fdlimit.
117 - point out that aio_copy overwrites existing files.
118 - removed filesystem magic number table from aio_statvfs docs as
119 statvfs doesn't actually return this info at all (statfs does).
120 - add a bunch of (mostly linux-specific) constants for use in ioctls
121 (see aio_ioctl docs).
122 - treescan now has a proper manpage and useful --help output.
123 - new option --sync in treescan, to sync everything in a subtree.
124 - changed default for aio_msync flags to MSYNC_SYNC.
125 - document offset/length behaviour of mprotect/madvise.
126 - support linux's renameat2 (via aio_rename2).
127 - add aio_rename2, an aio_rename with flags.
128 - add F_DUPPFD_CLOEXEC, F_OFD_[SG]ETLKW? constants.
129 - add FALLOC_FL_INSERT_RANGE, FALLOC_FL_UNSHARE_RANGE.
130 - (libeio) use posix_close if available.
131 - (libeio) internal close() calls no longer disturb errno.
132 - add IO:AIO::FALLOC_FL_UNSHARE.
133 - update schmorp.h for removal of USE_SOCKETS_AS_HANDLES
134 and better eventfd detection.
135
1364.34 Sun May 1 19:18:24 CEST 2016
137 - def0.h was not properly generated during previous release, causing
138 compile errors on various platforms.
139 - major/minor were accidentally switched (reported by Alexander Lishenyuk).
140 - removed duplicate definition of MAP_HUGETLB, that was found due to
141 a bug in Perl::Tidy (testcase by alaska332@gmail.com).
142 - added (untested!) aio_fcntl, aio_ioctl requests.
143 - (libeio) names set via prctl are truncated to 15 chars + nul, not 16,
144 as manpages-dev originally claimed.
145
1464.33 Mon Jan 18 12:50:10 CET 2016
147 - add IO::AIO::pipe2 function.
148 - added support for FALLOC_FL_COLLAPSE_RANGE and FALLOC_FL_ZERO_RANGE
149 constants.
150 - added support for O_TMPFILE and O_PATH constants.
151 - added support for MAP_FIXED, MAP_GROWSDOWN,MAP_32BIT, MAP_HUGETLB, MAP_STACK
152 consdtants, whether they can be sensibly used or not.
153 - use NO_INIT where applicable.
154 - update libecb.
155 - added stability canary support.
156 - updated linux super magic table to 4.3.3.
157
1584.32 Wed Feb 11 20:32:11 CET 2015
159 - replace off_t by STRLEN where appropriate, should not result in
160 user-visible changes.
161 - update ecb.h for C11 compatibility.
162
1634.31 Tue Jun 3 03:29:27 CEST 2014
164 - work around more 5.20 bugs. backwards compatibility my ass.
165
1664.3 Fri Apr 11 06:22:38 CEST 2014
167 - perl5porters broke Async::Interrupt, BDB, EV, IO::AIO, OpenCL
168 without warning by switching the meaning of USE_SOCKETS_AS_HANDLES
169 in 5.18. What's so attractive about giving a shit about backwards
170 compatibility - I will never understand.
171
1724.2 Sat Jan 25 01:13:14 CET 2014
173 - aio_group could corrupt memory because it didn't restore
174 the stack after req_submit.
175 - be more careful on (e.g. permission) errors in bin/treescan.
176 - work around changes in ExtUtils::MakeMaker.
177 - (libeio) implement aio_realpath for win32.
178 - (xthread) work around compile time bugs in ptw32.
179 - added IO::AIO::pipesize.
180 - (libecb) insignificant update.
181
1824.19 Sun Jan 6 12:47:26 CET 2013
183 - avoid endless loop in fiemap with some XFS files.
184 - in aio_rename and aio_rmdir, specialcase the case of [$wd, "."]
185 and call rename/rmdir instead of renameat/unlinkat.
186
1874.18 Thu Oct 11 07:01:26 CEST 2012
188 - fix unintended xthread_create by intentionalising it :)
189
1904.17 Thu Oct 11 05:19:47 CEST 2012
191 - rename aio_fallocate to aio_allocate, to match documentation.
192 - add list of linux fsid values to aio_statvfs docs.
193 - work around a bug in btrfs' FIEMAP ioctl implementation.
194 - work around AIX bug: statvfs.f_fsid is a struct, not unsigned long
195 as per unix spec.
196
1974.16 Tue Aug 14 05:39:03 CEST 2012
198 - aio_statvfs was wromgly marked for wd emulation, causing
199 it to malfunction for paths.
200 - fix a crash in aio_fiemap, when used on ranges without any
201 extents.
202 - work around linux kernel bug (at least in 3.2): kernel might
203 trash fiemap input arguments.
204 - work around linux kernel bug (at least in 3.2): kernel does not
205 set FIEMAP_EXTENT_LAST on last segment.
206 - work around linux kernel bug (at least in 3.2): kernel silently
207 truncates segment count if a file.
208 - make fh argument of IO::AIO::mmap optional, also add mmap/munmap
209 to quick overview.
210 - splice can corrupt data.
211 - (libeio) remove pread/pwrite emulation.
212 - do not grow mmaped scalars in aio_read.
213 - add FALLOC_FL_PUNCH_HOLE and document fallocate.
214 - provide pread/pwrite for win32, making it link again on native win32.
215
2164.15 Tue Apr 10 06:59:00 CEST 2012
217 - always include linux/types.h for fiemap, for compatibility to
218 ancient systems (Paul Howarth).
219 - experimental support for IO::AIO::splice and ::tee (no aio_...).
220 - provide SEEK_HOLE and SEEK_DATA, if available.
221 - work around (again!) an immensely stupid bug in RHEL, defining
222 autoconf macros in linux system headers (analysed by Paul Howarth).
223
2244.14 Sat Apr 7 02:45:18 CEST 2012
225 - fix stat structure usage on windows, which caused bogus stat results.
226 - (libeio) make readahead emulation behave more like actual readahead by never failing.
227 - new request aio_seek.
228 - new request aio_fiemap.
229 - autogenerate the #ifdef/#define 0 blocks for symbols we export.
230
2314.12 Fri Dec 30 08:51:25 CET 2011
232 - realpath would return a random value if the name was too long,
233 instead of -1.
234 - port to c89.
235
2364.11 Mon Oct 10 00:24:11 CEST 2011
237 - libeio didn't compile on !linux (Paul Howarth).
238
2394.1 Sun Oct 9 10:24:11 CEST 2011
240 - IO::AIO did access uninitialised memory on unsuccessful stats.
241 - (libeio) added syncfs syscall wrapper.
242 - (libeio) set thread name on linux (ps -L/Hcx, top, gdb).
243 - (libeio) support multiple indepenent working directories.
244 - applied speling corrections by Nicholas Bamber.
245 - tune treescan #threads and #outstanding requests a bit.
246 - reduce the number of file descriptors in use at any one time
247 in treescan, to avoid running out of them (and using too much ram).
248 - take advantage of working directoriy abstractions
249 in aio_scandir and treescan.
250 - reduce compiled size by ~10% by not inlining some key functionality.
251 - added --progress switch to treescan.
252
2534.0 Mon Jul 18 05:01:10 CEST 2011
254 - INCOMPATIBLE CHANGE: fork is no longer supported (indeed, it never was),
255 see FORK BEHAVIOUR in manpage for details.
256 - passes testsuite on win32 now and may actually work
257 (activestate 5.10.1 / MSVC6, YMMV).
258 - (libeio) fix a deadlock where a wakeup signal could be missed when
259 a timeout occured at the same time.
260 - (libeio) added realpath.
261 - (libeio) added fallocate.
262 - (libeio) disabling sendfile on darwin unfortunately broke the emulation.
263 - (libeio) do not acquire any locks when forking.
264 - (libeio) use fewer time() syscalls when waiting for new requests.
265
2663.93 Wed Jun 29 23:44:18 CEST 2011
267 - ECB.H WAS MISSING.
268
2693.92 Wed Jun 29 14:45:41 CEST 2011
270 - ecb.h was missing.
271
2723.91 Wed Jun 29 13:24:42 CEST 2011
273 - (libeio) work around a Linux (and likely FreeBSD and other
274 kernels) bug where sendfile would not transfer all the requested
275 bytes on large transfers, using a heuristic.
276 - buggy sendfile caused aio_move/copy to sometimes fail for big
277 files (fortunately it checks that the whole file has been
278 transferred...)
279 - use libecb for higher performance and higher portability.
280 - (libeio) disable sendfile on darwin, it's too broken.
281 - disable fork tests on !linux, as only linux supports mixing
282 pthread and fork in perl.
283 - document the fact that fork doesn't work anymore when using
284 this module, on anything !GNU/Linux.
285 - increase timeout in t/04_fork.t, as too many CPAN-tester setups
286 run on a 0.1MHz cpu. Or so.
287
2883.9 Fri May 27 02:43:47 CEST 2011
289 - (libeio) fix memory corruption in aio_readdirx for the flags
290 combination READDIR_STAT_ORDER | READDIR_DIRS_FIRST.
291 - add lots of newer POSIX and GNU/Linux-specific open
292 flags.
293
2943.8 Sun Mar 27 12:25:33 CEST 2011
295 - use nonstandard but maybe-working-on-bsd fork technique.
296 - support a max_idle value of 0.
297 - support setting of idle timeout value (IO::AIO::idle_timeout).
298
2993.72 Fri Feb 11 04:25:38 CET 2011
300 - use _POSIX_MEMLOCK_RANGE to detect mlock/munlock.
301 - aio_mknod always used a dev_t value of 0.
302 - new treescan option: --grep.
303 - add more S_IF macros, and major/minor/makedev "macros".
304
3053.71 Thu Dec 30 08:18:46 CET 2010
306 - the numerical result value passed to callbacks did not stringify
307 correctly, due to internal reuse and failure to reset the sv flags.
308 - actually test for posix_[mf]advise, as at least uClibc defines
309 _POSIX_ADVISORY_INFO without actually having any of the required
310 funcitonality. ugh.
311
3123.7 Mon Nov 1 23:00:34 CET 2010
313 - implement/add madvise, mmap, munmap, aio_mlockall, munlockall,
314 aio_mlock, munlock, msync and mtouch to @EXPORT_OK.
315 - document the sad state of affairs w.r.t. pthread on many bsds.
316 - do not enable mmap on systems without _POSIX_MAPPED_FILES
317 (openbsd 4.8).
318 - do not leak memory in IO::AIO::mmap when the scalar already
319 had string-data.
320 - add O_RDWR, O_APPEND and O_EXCL symbols and semi-document
321 them.
322 - cache the result IV, for a minor speedup in the common case.
323 - croak when an mmapped-scalar changes location, to detect
324 user-errors better.
325 - fix aio_readlink prototype.
326
3273.65 Wed Mar 31 02:45:05 CEST 2010
328 - actually use PATH_MAX instead of NAME_MAX for readlink, as to not
329 cut off long pathnames in aio_readlink (based on patch by
330 Rasmus Andersson).
331 - a double fork partially killed the event pipe (great testcase
332 by dormando). affects IO::AIO, BDB and Async::Interrupt.
333 - suck steve's dick and rename our symbols to avoid colliding
334 with nonstandard identifier spam on the broken os x pseudo-os.
335 affects IO::AIO and BDB.
336
3373.6 Mon Jan 11 00:43:39 CET 2010
338 - (libeio) more fixes for the freebsd/apple sendfile - broken by
339 manpage standards, but apparently correct accoridng to actual
340 kernel sources.
341 - add IO::AIO::mmap/munmap support.
342 - add IO::AIO::m(un)lockall support.
343 - clean up manpage.
344
3453.5 Thu Jan 7 21:25:04 CET 2010
346 - (liebio) fix freebsd sendfile (Vanilla Hsu).
347 - (libeio) also fix darwin sendfile that suffered from a similar bug.
348 - add aio_statvfs as interface to statvfs/fstatvfs.
349 - work around buggy symlink() on cygwin in the testsuite.
350 - wtf. freebsd-8.0 actually passes the testsuite! I knew
351 they could implement fork and semaphores one day! cheers!
352
3533.4 Sat Jan 2 15:13:04 CET 2010
354 - (libeio) max_poll_time was not properly converted to ticks.
355 - clarify cancel_subs description.
356 - IO::AIO::sendfile did not actually return the return value
357 from the sendfile call.
358 - implement aio_msync, aio_mtouch.
359 - (libeio) tentatively support darwin in sendfile.
360
3613.31 Thu Nov 12 02:14:29 CET 2009
362 - fix result status documentation of aio_copy, aio_move.
363 - speed up object creation considerably by avoiding
364 hash lookups.
365
3663.3 Wed Aug 5 13:52:58 CEST 2009
367 - use common::sense.
368 - use common schmorp.h header.
369 - allow integers (file descriptors) in addition to file handles.
370 - take advantage of linux' eventfd (but it seems slower on smp?).
371 - use poll not select on posix platforms.
372
3733.261 Wed Jul 1 10:11:51 CEST 2009
374 - more 0S X workarounds (patch by Tokuhiro Matsuno).
375
3763.26 Tue Jun 30 09:33:26 CEST 2009
377 - 0S X of course claims to be posix 2008 but lacks posix_fadvise.
378 try to work around this horribly broken OS in a somewhat hackish
379 way. might help other os's too.
380
3813.25 Sat Jun 27 05:18:26 CEST 2009
382 - added IO::AIO::fadvise and IO::AIO::sendfile.
383 - (libeio) replaced quicksort+insertion sort by a tuned radix
384 sort + insertion sort, resulting in comparable runtime (usually
385 faster) to the old version, but without any ill side effects on
386 degenerated (for quicksort) data.
387 - (libeio) correctly sort dirs by inodes if we have perfect type
388 knowledge and DIRS_FIRST is used.
389 - (libeio) internally the wrong DT_* constants were used, but no
390 known system has differing EIO_DT_*/DT_* values, so not an issue.
391 - removed a (harmless) assert that was left over on the code
392 but should not have been.
393 - use more correct types (change IO length from IV to VAL64,
394 which makes a difference on systems without 64 bit perls).
395
3963.23 Sat Jun 13 16:57:58 CEST 2009
397 - fix off-by-one bug in aio_readdir that was introduced in the
398 rushed 3.22 release.
399
4003.22 Sat Jun 13 15:32:40 CEST 2009
401 - speed up readdirx sort algorithm slightly.
402 - bin/treescan was missing from distro tarball.
403
4043.21 Fri Jun 12 18:45:53 CEST 2009
405 - new options --dirs and --files for treescan.
406 - install bin/treescan by default.
407 - (libeio) aio_readdir can now be cancelled while executing.
408 - fix a printf format string for 64 bit systems (could lead
409 to problems on big endian 64 bit systems).
410 - do not use qsort() but our own algorithm: glibc initialises
411 the whole locale and I/O subsystem inside qsort, causing
412 a stack overflow on 32 bit machines. The new sort uses much less
413 stack and is more than twice as fast in typical situations.
414
4153.2 Sun Jun 7 20:30:05 CEST 2009
416 - (libeio) pwrite emulation was even more flawed than intended and did
417 not restore the file offset.
418 - add aio_readdirx, which can return inode and filetype and sort
419 the names in various ways.
420 - unfortunately, utime, chmod, chown on an open file that has just
421 been written can easily block, which caused aio_copy to block the
422 process. no more!
423 - no longer rely on dst path in aio_copy when futime is available.
424
4253.19 Tue Apr 21 22:05:21 CEST 2009
426 - more perl 5.10 workarounds for aio_read and write.
427 - aio_write no longer modifies the sv (if possible).
428 - aio_read now works correctly with magic values.
429
4303.18 Sun Apr 19 21:17:32 CEST 2009
431 - better diagnostics when some aio_* functions get passed an illegal fh.
432 - try to avoid crashes due to incompatible 5.10 API changes. grmbl.
433
4343.17 Thu Nov 20 08:45:36 CET 2008
435 - (libeio) added aio_sync_file_range (untested).
436 - add aio_busy to @IO::AIO::AIO_REQ.
437
4383.16 Wed Oct 22 18:28:01 CEST 2008
439 - use SvREFCNT_inc instead of SvREFCNT_inc_NN in a non-speed critical
440 part to improve portability to perl 5.8 (reported by szymon).
441
4423.15 Mon Oct 13 00:39:55 CEST 2008
443 - automatic removal of feeders was broken.
444 - (libeio) use a more robust method to detect whether a feeder
445 has added something to the group or not.
446
4473.1 Thu Oct 2 13:34:40 CEST 2008
448 - pre-deref the passed callback object, for increased speed
449 and decreased memory usage.
450 - call on_next_submit callback even for aio_group - impact unknown,
451 but seems more correct.
452 - $req->cb now returns the original callback.
453 - (libeio) pass EIO_GROUP/aio_group requests through the queue without
454 requiring a thread switch.
455 - (libeio) status code of aio_futime and aio_utime was always passed 0.
456 - do some other ยต-optimisations.
457
4583.07 Sat Aug 2 16:06:13 CEST 2008
459 - do not include LIBS in autoconf tests.
460
4613.06 Tue Jul 15 12:41:32 CEST 2008
462 - move preadwritelock definition before it's first reference,
463 to make it compile again on broken platforms (they still exist)
464 or badly cofngiured perls (redhat...), reported by Rob Bloodgood.
465
4663.05 Thu Jun 19 23:23:52 CEST 2008
467 - work around perl overriding readdir etc. with thread-unsafe
468 (sic!) versions.
469
4703.04 Wed Jun 18 01:35:38 CEST 2008
471 - (libeio) fix eio_mknod, which confused it's arguments.
472 - (libeio) do not use readdir_r, as Ulrich Drepper pointed out that this
473 is stupid.
474 - (libeio) fix eio__readahead prototype, patch by Jost Krieger.
475 - (libeio) fix a bug that could potentially cause IO::AIO
476 not to get initialised properly.
477
4783.03 Thu May 29 05:33:30 CEST 2008
479 - (libeio) correctly call pthread_attr_destroy ().
480 - (libeio) work around broken bsd headers once more.
481 - reduce shared library size again by not including wrappers.
482 - max_outstanding could cause poll to enter a busy-waiting loop.
483 - document the new IO::AIO::poll_cb result value.
484
4853.02 Mon May 12 02:32:02 CEST 2008
486 - fix a memory leak on aio_readlink.
487 - bring back working fchmod.
488 - nop and busy now set result to 0.
489 - set errno to ENOMEM when allocation fails.
490
4913.01 Sun May 11 03:07:03 CEST 2008
492 - (libeio) make it compile on systems without readahead or readdir_r.
493 - (libeio) improve configure check for readahead availability.
494 - do not try to link against -lrt.
495 - use a separate configure script for IO::AIO (not the libeio one).
496
4973.0 Sun May 11 00:57:14 CEST 2008
498 - added bin/treescan to the distribution.
499 - switched to using libeio.
500 - LOTS OF INCOMPATIBLE CHANGES:
501 - remove signal functionality, it is not worth the effort.
502 - max_outstanding no longer returns the previous number of requests.
503 - poll_cb no longer returns number of requests.
504
5052.62 Sat Apr 26 13:59:33 CEST 2008
506 - port to solaris perls configured for old posix
507 (analysed by Jost Krieger).
508 - keep a reference to the perl filehandle object in aio_close,
509 so it doesn't get closed prematurely, leading to ugly races.
510
5112.61 Wed Apr 16 18:45:02 CEST 2008
512 - fix treescan output duplication and improve output ordering.
513 also display files given on the commandline.
514 - use a different algorithm for aio_close that is faster
515 and probably has even lower chances of blocking.
516 - do our own stack memory management for threads - linux
517 allocates outrageous amounts of VM (not so bad unless you
518 use mlockall...), which severely limits the number of threads
519 on 32-bit arches: stack size is the larger of PTHREAD_STACK_MIN
520 and 4096 * sizeof (long) (usually this is 16..64k).
521
5222.6 Sun Mar 30 08:28:11 CEST 2008
523 - added aio_sync.
524 - added aio_pathsync.
525 - fix prototypes of (void) functions.
526
5272.51 Sat Oct 6 16:04:54 CEST 2007
528 - perlio isn't generally threadsafe, so aio_close could not work reliably.
529 aio_close now tries a safe hack that might not be that asynchronous
530 (see the manpage for details).
531 - discard callback return values as to not grow the stack endlessly
532 when poll_cb handles many requests without returning.
533 - minor code cleanups.
534
5352.5 Thu Oct 4 14:49:08 CEST 2007
536 - replaced _fd2fh with faster xs code.
537 - aio_close will now try to do "the right thing" and thus might
538 work sensibly for the very first time.
539
5402.41 Mon Sep 24 21:28:21 CEST 2007
541 - after fork, invest some work to make sure that the poll_fileno
542 stays stable (by dup2'ing the new fd over the old one), to make
543 it easier for programs/libs that don't control their forking
544 behaviour and cannot recreate their watchers.
545
5462.4 Sun Aug 5 18:44:22 CEST 2007
547 - add aio_truncate, aio_chmod, aio_chown, aio_utime (linux
548 successfully demonstrated that you can block on futimes...).
549 - allow undef as fileoffset for aio_read/write and use read/write(2)
550 internally (useful for sockets or O_APPEND handles).
551 - allow undef for length in aio_write.
552 - negative dataoffsets work as expected now in aio_read/aio_write.
553 - use NV instead of UV for 32 bit perls and file offsets, as NVs
554 have a larger range then.
555 - shared code between BDB and IO::AIO.
556 - aio_busy was completely broken. now fixed.
557 - readahead emulation now returns something.
558 - correctly set errno to ENOSYS on unimplemented functions
559 (should never happen, though).
560 - large changes to make it partially compile and run on win32,
561 but win32 lacks too much functionality, and perl overrides way
562 too many functions with crashing versions.
563
5642.33 Tue Jan 23 23:55:41 CET 2007
565 - fix install path (Andreas J. Koenig).
566
5672.32 Mon Jan 22 16:56:23 CET 2007
568 - added aio_rmtree.
569 - wow, aio_mkdir was missing.
570 - aio_load did return undef on error, not -1.
571 - use prefixexp not prefix in autoconf.pm
572 (suggested by ... rt.cpan.org unreachable).
573 - avoid installing autoconf.pm.
574
5752.31 Sat Jan 6 03:46:02 CET 2007
576 - added aio_load.
577
5782.3 Sat Dec 23 05:48:07 CET 2006
579 - fix off-by-one bug in aio_read, causing memory corruption
580 or crashes.
581
5822.21 Fri Dec 22 05:03:38 CET 2006
583 - minor doc updates.
584 - minor cleanups.
585 - IO::AIO::poll returns request count.
586 - undocumented and unfinished async-signal-reporting.
587
5882.2 Tue Oct 31 00:31:00 CET 2006
589 - minor doc updates.
590 - added aio_readlink.
591 - properly zero-terminate aio_read buffer.
592 - fix aio_read/write with nonzero dataoffset.
593 - reduced size of aio request structure.
594 - better diagnostics when pathnames etc. are not byte-encoded;
595 do not leak request in that case, either.
596
5972.1 Sun Oct 29 02:01:57 CET 2006
598 - INCOMPATIBLE CHANGE: replace IO::AIO::poll_some by
599 IO::AIO::max_poll_reqs and IO::AIO::max_poll_time.
600 - fix a bug in aio_move where it would fail everytime
601 it would have to copy files manually.
602 - doc updates.
603 - start threads only on (very low) demand.
604 - end superfluous threads automatically after 10s idling.
605 - add IO::AIO::max_idle to control this.
606 - some tuning applied to random places.
607 - add aio_mknod.
608
6092.0 Thu Oct 26 18:27:58 CEST 2006
610 - minor incompatibility: max_outstanding semantics have changed.
611 - major rewrite, consider all functionality EXPERIMENTAL.
612 - aio requests can be cancelled.
613 - callbacks can be (re-)set later.
614 - aio requests can choose between 9 priorities.
615 - add aio_group: aio requests can be grouped
616 into composite requests.
617 - generator interface for groups.
618 - add IO::AIO::poll_some.
619 - major documentation improvements.
620 - very minor bugfixes.
621 - add aio_nop for dummy requests.
622 - add aio_busy mainly for benchmarking and debugging.
623 - use "fast" mutexes on linux.
624 - use dynamic (and larger) buffers instead of
625 putting them onto the stack.
626 - optimise x86 and amd64 a bit.
627 - better error checking when ENOMEM.
628 - hopefully fix mem and dirp leaks on fork.
629 - warn about broken perl malloc.
630 - compiles on cygwin (but pread is broken on cygwin
631 which is not detected by autoconf, so you have to
632 edit autoconf/config.h yourself to enable emulation).
633
6341.8 Sat Jun 24 22:20:44 CEST 2006
635 - add and/or document aio_rename, aio_link, aio_symlink and aio_move.
636
6371.73 Wed Mar 1 22:49:32 CET 2006
638 - codename "jost"
639 - AIX/Solaris(?) aren't being helpful again, hardcode a value
640 for NAME_MAX and drive with your eyes closed (reported by
641 wcooley@nakedape.cc).
642
6431.72 Thu Feb 2 00:40:44 CET 2006
644 - another minor bug in aio_scandir, again, the callback was called
645 twice when the directory can't be stat'ed.
646
6471.71 Mon Dec 26 20:20:03 CET 2005
648 - grr, another minor bug in aio_scandir, this time resulting
649 in a runtime error.
650
6511.7 Mon Dec 26 19:29:48 CET 2005
652 - aio_scandir errornously called callback twice in some cases.
653 - added AnyEvent example.
654
6551.61 Wed Sep 7 19:40:42 CEST 2005
656 - no longer include $Config{libs}, as distros include too much
657 garbage in there that is not installed on typical systems
658 (for example, debian links perl against -lgdbm and many more
659 libraries despite perl not needing it, slowing down startup and
660 wasting memory).
661
6621.6 Tue Aug 30 17:44:44 CEST 2005
663 - added aio_readdir, aio_scandir.
664 - added aio_sendfile, including sendfile emulation when sendfile
665 isn't available. Linux, FreeBSD and HP-UX might work (sendfilev
666 support is unavailable on my solaris 8 machine, but preliminary
667 code is there. What's lacking is configury stuff and testing...).
668
6691.5 Sat Aug 20 02:32:19 CEST 2005
670 - create the aio threads on demand only (good after forking).
671 - somebody nagged about C89 compatibility, so this release should
672 be C89 compatible, but no guarantees for future ones.
673 - abort when the configure script fails.
674
6751.4 Wed Aug 17 08:07:27 CEST 2005
676 - forgot to recreate the pipe after forking, this could cause
677 deadlocks.
678
6791.3 Wed Aug 17 07:25:54 CEST 2005
4 - properly propagate exceptions from callbacks, instead of silently 680 - properly propagate exceptions from callbacks, instead of silently
5 eating them. 681 eating them.
6 - forking while in an atfork handler is now supported, although 682 - use a different fork algorithm that avoids recursive callback
7 I am pretty sure some pthread implementations will barf - don't 683 invocations and reduces fork latency in busy processes.
8 fork in an AIO callback if that is a concern for you, or synchronize 684 - fix a bug where the buffer scalar in aio_read got assigned the wrong
9 for yourself by clearing the request queue first. 685 length after reading.
686 - fix a bug where the child would process some outstanding requests
687 from the parent.
688 - make a copy of the callback scalar, to avoid some very uncommon
689 (but valid) usages where the callback scalar changes.
690 - the callback was never freed in aio_read/aio_write.
691 - aio_read/aio_write will now set the readonly flag on the data
692 scalar for better error reporting.
10 693
111.2 Wed Aug 17 01:22:58 CEST 2005 6941.2 Wed Aug 17 01:22:58 CEST 2005
12 - verified on cygwin, linux/amd64+ia32+alpha, solaris. 695 - verified on cygwin, linux/amd64+ia32+alpha, solaris.
13 - use SvPVbyte for filenames now. You *need* to encode your strings to 696 - use SvPVbyte for filenames now. You *need* to encode your strings to
14 the external filename encoding first. 697 the external filename encoding first.

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