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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 1.390 by root, Thu Oct 29 05:13:55 2020 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: use feeder for aio_scandir. 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/
5 23
62.0 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: FIDEDUPERANGE, file_ioctl.c
29TODO: mincore
30TODO: SOCK_CLOEXEc etc.
31TODO: unlinkat flags, linkat flags, statat, renameat2 flags
32TODO: https://kernelnewbies.org/Linux_4.11
33TODO: define useful rules for [[$wd, $path], $path] &c and implement them
34TODO: https://github.com/coreutils/coreutils/blob/master/src/stat.c maybe IO::AIO::FSID
35TODO: mlock2, MLOCK_ONFAULT
36TODO: dup3, pipe2, accept4
37TODO: dump config.log when automated testign and configure fails
38TODO: ns time resolution in utime
39TODO: statx
40TODO: pidfd_open/pidfd_send_signal (open/poll /proc?)
41TODO: aio_fchdir/chdir? emulate chdirat?
42
43TODO: rt-4.0.18-20109-1573826674-1229.126277-5-0@rt.cpan.org
44TODO: aio_splice, aio_tee
45TODO: copy_file_range
46TODO: write more abpout the thread model, maybe bump some defaults?
47TODO: io_uring, but it's so broken :/
48TODO: allow import of fds as aio_wd
49 - IO::AIO::splice and IO::AIO::tee didn't properly return
50 64 bit values.
51 - added IO::AIO::accept4.
52 - add various F_SEAL related fcntl constants.
53 - removed experimentla marker for fdlimit functions.
54 - fiemap now includes the last segment even if it overflows
55 the end offset, which is arguably the correct behaviour.
56
574.72 Wed Apr 3 04:56:03 CEST 2019
58 - (libeio) if fd 0 is available do not use it for aio_wd, as it
59 collides with IO::AIO::CWD.
60 - added IO::AIO::memfd_create.
61 - correctly include <sys/uio.h> in the vmsplice test.
62 - reduce codesize by ~7% on amd64 by declaring more functions
63 as noinline.
64 - documentation fixes and updates.
65 - experimental and undocumented preliminary support for synchronous statx.
66
674.71 Sun Mar 10 13:09:26 CET 2019
68 - due to an error in the linux manpages, the configure tests
69 for readahead, sync_file_range, splice etc. failed. This has been fixed.
70
714.7 Mon Mar 4 11:28:13 CET 2019
72 - majorly speed up scandir for the very special case of a non-POSIX
73 filesystem that nevertheless reports valid dt_type information.
74 The only known filesystem of this type is currently btrfs, which
75 didn't get it's act together to implement POSIX semantics in all
76 these years, and I am tired of waiting.
77 - add IO::AIO::MCL_ONFAULT for mlockall, add IO::AIO::mlockall.
78 - neither sys/mkdev.h nor sys/sysmacros.h were included, even when they
79 were detected by autoconf.
80
814.6 Sat Aug 25 21:58:36 CEST 2018
82 - add st_btime, st_btimesec, st_btimensec and st_gen accessors,
83 mostly for bsds which expose birthtime and st_gen members (netbsd, freebsd
84 but only st_gen on openbsd because they compiled their perl without support
85 for birthtimes).
86 - fix madvise and munlock to properly support negative offsets.
87 - allocate fd for the aio_close at boot time, to guarantee it working
88 later, rather than calling abort when it fails. also avoids
89 close-on-exec race issues after module load.
90 - #undef utime on win32, maybe this helps some reports of utime hangs.
91 - minor doc improvements.
92 - minor configure cleanups.
93 - use $Config{perllibs} instead of libs for configure. might help people
94 who didn't install all perl dependencies (might break things as well).
95
964.54 Tue Aug 14 13:54:48 CEST 2018
97 - include sys/mkdev.h or sys/sysmacros.h if available.
98 - further tweaks to configure invocation for systems requiring --rpath.
99 - no longer rely on custom paths on win32 platforms.
100 - try to work around buggy PAGESIZE macro on solaris.
101
1024.53 Tue Aug 14 11:27:50 CEST 2018
103 - add $Config{libs} to LIBS for configure, to work around systems
104 with broken library dependencies (... openbsd).
105
1064.52 Sun Aug 12 08:09:45 CEST 2018
107 - config.h.in was missing in distribution.
108
1094.51 Sun Aug 12 07:24:14 CEST 2018
110 - complete rework of the autoconf framework: IO::AIO now uses its own
111 config.h, separate from libeio, and tries to test the actual perl
112 environment, not the standard system environment.
113 - provide nanosecond-accracy stat time accessors for both perl and IO::AIO
114 stat functions.
115 - removed non-portable C++ syntax from eio.c.
116 - try to fix readdir tests on cygwin spuriously failing.
117
1184.5 Wed Aug 1 00:23:55 CEST 2018
119 - aio_mtouch touch all pages as requested, not just the first page in most cases.
120 - new function: IO::AIO::mremap, linux-specific mremap, with constants MREMAP_MAYMOVE
121 and MREMAP_FIXED.
122 - add O_ACCMODE.
123 - add (undocumented) MSG_CMSG_CLOEXEC and SOCK_CLOEXEC constants.
124
1254.4 Tue Feb 20 07:54:12 CET 2018
126 - new aio_slurp request.
127 - add (experimental) IO::AIO::eventfd and timerfd* function.
128 - add (experimental) IO::AIO::get_fdlimit and IO::AIO::min_fdlimit.
129 - point out that aio_copy overwrites existing files.
130 - removed filesystem magic number table from aio_statvfs docs as
131 statvfs doesn't actually return this info at all (statfs does).
132 - add a bunch of (mostly linux-specific) constants for use in ioctls
133 (see aio_ioctl docs).
134 - treescan now has a proper manpage and useful --help output.
135 - new option --sync in treescan, to sync everything in a subtree.
136 - changed default for aio_msync flags to MSYNC_SYNC.
137 - document offset/length behaviour of mprotect/madvise.
138 - support linux's renameat2 (via aio_rename2).
139 - add aio_rename2, an aio_rename with flags.
140 - add F_DUPPFD_CLOEXEC, F_OFD_[SG]ETLKW? constants.
141 - add FALLOC_FL_INSERT_RANGE, FALLOC_FL_UNSHARE_RANGE.
142 - (libeio) use posix_close if available.
143 - (libeio) internal close() calls no longer disturb errno.
144 - add IO:AIO::FALLOC_FL_UNSHARE.
145 - update schmorp.h for removal of USE_SOCKETS_AS_HANDLES
146 and better eventfd detection.
147
1484.34 Sun May 1 19:18:24 CEST 2016
149 - def0.h was not properly generated during previous release, causing
150 compile errors on various platforms.
151 - major/minor were accidentally switched (reported by Alexander Lishenyuk).
152 - removed duplicate definition of MAP_HUGETLB, that was found due to
153 a bug in Perl::Tidy (testcase by alaska332@gmail.com).
154 - added (untested!) aio_fcntl, aio_ioctl requests.
155 - (libeio) names set via prctl are truncated to 15 chars + nul, not 16,
156 as manpages-dev originally claimed.
157
1584.33 Mon Jan 18 12:50:10 CET 2016
159 - add IO::AIO::pipe2 function.
160 - added support for FALLOC_FL_COLLAPSE_RANGE and FALLOC_FL_ZERO_RANGE
161 constants.
162 - added support for O_TMPFILE and O_PATH constants.
163 - added support for MAP_FIXED, MAP_GROWSDOWN,MAP_32BIT, MAP_HUGETLB, MAP_STACK
164 consdtants, whether they can be sensibly used or not.
165 - use NO_INIT where applicable.
166 - update libecb.
167 - added stability canary support.
168 - updated linux super magic table to 4.3.3.
169
1704.32 Wed Feb 11 20:32:11 CET 2015
171 - replace off_t by STRLEN where appropriate, should not result in
172 user-visible changes.
173 - update ecb.h for C11 compatibility.
174
1754.31 Tue Jun 3 03:29:27 CEST 2014
176 - work around more 5.20 bugs. backwards compatibility my ass.
177
1784.3 Fri Apr 11 06:22:38 CEST 2014
179 - perl5porters broke Async::Interrupt, BDB, EV, IO::AIO, OpenCL
180 without warning by switching the meaning of USE_SOCKETS_AS_HANDLES
181 in 5.18. What's so attractive about giving a shit about backwards
182 compatibility - I will never understand.
183
1844.2 Sat Jan 25 01:13:14 CET 2014
185 - aio_group could corrupt memory because it didn't restore
186 the stack after req_submit.
187 - be more careful on (e.g. permission) errors in bin/treescan.
188 - work around changes in ExtUtils::MakeMaker.
189 - (libeio) implement aio_realpath for win32.
190 - (xthread) work around compile time bugs in ptw32.
191 - added IO::AIO::pipesize.
192 - (libecb) insignificant update.
193
1944.19 Sun Jan 6 12:47:26 CET 2013
195 - avoid endless loop in fiemap with some XFS files.
196 - in aio_rename and aio_rmdir, specialcase the case of [$wd, "."]
197 and call rename/rmdir instead of renameat/unlinkat.
198
1994.18 Thu Oct 11 07:01:26 CEST 2012
200 - fix unintended xthread_create by intentionalising it :)
201
2024.17 Thu Oct 11 05:19:47 CEST 2012
203 - rename aio_fallocate to aio_allocate, to match documentation.
204 - add list of linux fsid values to aio_statvfs docs.
205 - work around a bug in btrfs' FIEMAP ioctl implementation.
206 - work around AIX bug: statvfs.f_fsid is a struct, not unsigned long
207 as per unix spec.
208
2094.16 Tue Aug 14 05:39:03 CEST 2012
210 - aio_statvfs was wromgly marked for wd emulation, causing
211 it to malfunction for paths.
212 - fix a crash in aio_fiemap, when used on ranges without any
213 extents.
214 - work around linux kernel bug (at least in 3.2): kernel might
215 trash fiemap input arguments.
216 - work around linux kernel bug (at least in 3.2): kernel does not
217 set FIEMAP_EXTENT_LAST on last segment.
218 - work around linux kernel bug (at least in 3.2): kernel silently
219 truncates segment count if a file.
220 - make fh argument of IO::AIO::mmap optional, also add mmap/munmap
221 to quick overview.
222 - splice can corrupt data.
223 - (libeio) remove pread/pwrite emulation.
224 - do not grow mmaped scalars in aio_read.
225 - add FALLOC_FL_PUNCH_HOLE and document fallocate.
226 - provide pread/pwrite for win32, making it link again on native win32.
227
2284.15 Tue Apr 10 06:59:00 CEST 2012
229 - always include linux/types.h for fiemap, for compatibility to
230 ancient systems (Paul Howarth).
231 - experimental support for IO::AIO::splice and ::tee (no aio_...).
232 - provide SEEK_HOLE and SEEK_DATA, if available.
233 - work around (again!) an immensely stupid bug in RHEL, defining
234 autoconf macros in linux system headers (analysed by Paul Howarth).
235
2364.14 Sat Apr 7 02:45:18 CEST 2012
237 - fix stat structure usage on windows, which caused bogus stat results.
238 - (libeio) make readahead emulation behave more like actual readahead by never failing.
239 - new request aio_seek.
240 - new request aio_fiemap.
241 - autogenerate the #ifdef/#define 0 blocks for symbols we export.
242
2434.12 Fri Dec 30 08:51:25 CET 2011
244 - realpath would return a random value if the name was too long,
245 instead of -1.
246 - port to c89.
247
2484.11 Mon Oct 10 00:24:11 CEST 2011
249 - libeio didn't compile on !linux (Paul Howarth).
250
2514.1 Sun Oct 9 10:24:11 CEST 2011
252 - IO::AIO did access uninitialised memory on unsuccessful stats.
253 - (libeio) added syncfs syscall wrapper.
254 - (libeio) set thread name on linux (ps -L/Hcx, top, gdb).
255 - (libeio) support multiple indepenent working directories.
256 - applied speling corrections by Nicholas Bamber.
257 - tune treescan #threads and #outstanding requests a bit.
258 - reduce the number of file descriptors in use at any one time
259 in treescan, to avoid running out of them (and using too much ram).
260 - take advantage of working directoriy abstractions
261 in aio_scandir and treescan.
262 - reduce compiled size by ~10% by not inlining some key functionality.
263 - added --progress switch to treescan.
264
2654.0 Mon Jul 18 05:01:10 CEST 2011
266 - INCOMPATIBLE CHANGE: fork is no longer supported (indeed, it never was),
267 see FORK BEHAVIOUR in manpage for details.
268 - passes testsuite on win32 now and may actually work
269 (activestate 5.10.1 / MSVC6, YMMV).
270 - (libeio) fix a deadlock where a wakeup signal could be missed when
271 a timeout occured at the same time.
272 - (libeio) added realpath.
273 - (libeio) added fallocate.
274 - (libeio) disabling sendfile on darwin unfortunately broke the emulation.
275 - (libeio) do not acquire any locks when forking.
276 - (libeio) use fewer time() syscalls when waiting for new requests.
277
2783.93 Wed Jun 29 23:44:18 CEST 2011
279 - ECB.H WAS MISSING.
280
2813.92 Wed Jun 29 14:45:41 CEST 2011
282 - ecb.h was missing.
283
2843.91 Wed Jun 29 13:24:42 CEST 2011
285 - (libeio) work around a Linux (and likely FreeBSD and other
286 kernels) bug where sendfile would not transfer all the requested
287 bytes on large transfers, using a heuristic.
288 - buggy sendfile caused aio_move/copy to sometimes fail for big
289 files (fortunately it checks that the whole file has been
290 transferred...)
291 - use libecb for higher performance and higher portability.
292 - (libeio) disable sendfile on darwin, it's too broken.
293 - disable fork tests on !linux, as only linux supports mixing
294 pthread and fork in perl.
295 - document the fact that fork doesn't work anymore when using
296 this module, on anything !GNU/Linux.
297 - increase timeout in t/04_fork.t, as too many CPAN-tester setups
298 run on a 0.1MHz cpu. Or so.
299
3003.9 Fri May 27 02:43:47 CEST 2011
301 - (libeio) fix memory corruption in aio_readdirx for the flags
302 combination READDIR_STAT_ORDER | READDIR_DIRS_FIRST.
303 - add lots of newer POSIX and GNU/Linux-specific open
304 flags.
305
3063.8 Sun Mar 27 12:25:33 CEST 2011
307 - use nonstandard but maybe-working-on-bsd fork technique.
308 - support a max_idle value of 0.
309 - support setting of idle timeout value (IO::AIO::idle_timeout).
310
3113.72 Fri Feb 11 04:25:38 CET 2011
312 - use _POSIX_MEMLOCK_RANGE to detect mlock/munlock.
313 - aio_mknod always used a dev_t value of 0.
314 - new treescan option: --grep.
315 - add more S_IF macros, and major/minor/makedev "macros".
316
3173.71 Thu Dec 30 08:18:46 CET 2010
318 - the numerical result value passed to callbacks did not stringify
319 correctly, due to internal reuse and failure to reset the sv flags.
320 - actually test for posix_[mf]advise, as at least uClibc defines
321 _POSIX_ADVISORY_INFO without actually having any of the required
322 funcitonality. ugh.
323
3243.7 Mon Nov 1 23:00:34 CET 2010
325 - implement/add madvise, mmap, munmap, aio_mlockall, munlockall,
326 aio_mlock, munlock, msync and mtouch to @EXPORT_OK.
327 - document the sad state of affairs w.r.t. pthread on many bsds.
328 - do not enable mmap on systems without _POSIX_MAPPED_FILES
329 (openbsd 4.8).
330 - do not leak memory in IO::AIO::mmap when the scalar already
331 had string-data.
332 - add O_RDWR, O_APPEND and O_EXCL symbols and semi-document
333 them.
334 - cache the result IV, for a minor speedup in the common case.
335 - croak when an mmapped-scalar changes location, to detect
336 user-errors better.
337 - fix aio_readlink prototype.
338
3393.65 Wed Mar 31 02:45:05 CEST 2010
340 - actually use PATH_MAX instead of NAME_MAX for readlink, as to not
341 cut off long pathnames in aio_readlink (based on patch by
342 Rasmus Andersson).
343 - a double fork partially killed the event pipe (great testcase
344 by dormando). affects IO::AIO, BDB and Async::Interrupt.
345 - suck steve's dick and rename our symbols to avoid colliding
346 with nonstandard identifier spam on the broken os x pseudo-os.
347 affects IO::AIO and BDB.
348
3493.6 Mon Jan 11 00:43:39 CET 2010
350 - (libeio) more fixes for the freebsd/apple sendfile - broken by
351 manpage standards, but apparently correct accoridng to actual
352 kernel sources.
353 - add IO::AIO::mmap/munmap support.
354 - add IO::AIO::m(un)lockall support.
355 - clean up manpage.
356
3573.5 Thu Jan 7 21:25:04 CET 2010
358 - (liebio) fix freebsd sendfile (Vanilla Hsu).
359 - (libeio) also fix darwin sendfile that suffered from a similar bug.
360 - add aio_statvfs as interface to statvfs/fstatvfs.
361 - work around buggy symlink() on cygwin in the testsuite.
362 - wtf. freebsd-8.0 actually passes the testsuite! I knew
363 they could implement fork and semaphores one day! cheers!
364
3653.4 Sat Jan 2 15:13:04 CET 2010
366 - (libeio) max_poll_time was not properly converted to ticks.
367 - clarify cancel_subs description.
368 - IO::AIO::sendfile did not actually return the return value
369 from the sendfile call.
370 - implement aio_msync, aio_mtouch.
371 - (libeio) tentatively support darwin in sendfile.
372
3733.31 Thu Nov 12 02:14:29 CET 2009
374 - fix result status documentation of aio_copy, aio_move.
375 - speed up object creation considerably by avoiding
376 hash lookups.
377
3783.3 Wed Aug 5 13:52:58 CEST 2009
379 - use common::sense.
380 - use common schmorp.h header.
381 - allow integers (file descriptors) in addition to file handles.
382 - take advantage of linux' eventfd (but it seems slower on smp?).
383 - use poll not select on posix platforms.
384
3853.261 Wed Jul 1 10:11:51 CEST 2009
386 - more 0S X workarounds (patch by Tokuhiro Matsuno).
387
3883.26 Tue Jun 30 09:33:26 CEST 2009
389 - 0S X of course claims to be posix 2008 but lacks posix_fadvise.
390 try to work around this horribly broken OS in a somewhat hackish
391 way. might help other os's too.
392
3933.25 Sat Jun 27 05:18:26 CEST 2009
394 - added IO::AIO::fadvise and IO::AIO::sendfile.
395 - (libeio) replaced quicksort+insertion sort by a tuned radix
396 sort + insertion sort, resulting in comparable runtime (usually
397 faster) to the old version, but without any ill side effects on
398 degenerated (for quicksort) data.
399 - (libeio) correctly sort dirs by inodes if we have perfect type
400 knowledge and DIRS_FIRST is used.
401 - (libeio) internally the wrong DT_* constants were used, but no
402 known system has differing EIO_DT_*/DT_* values, so not an issue.
403 - removed a (harmless) assert that was left over on the code
404 but should not have been.
405 - use more correct types (change IO length from IV to VAL64,
406 which makes a difference on systems without 64 bit perls).
407
4083.23 Sat Jun 13 16:57:58 CEST 2009
409 - fix off-by-one bug in aio_readdir that was introduced in the
410 rushed 3.22 release.
411
4123.22 Sat Jun 13 15:32:40 CEST 2009
413 - speed up readdirx sort algorithm slightly.
414 - bin/treescan was missing from distro tarball.
415
4163.21 Fri Jun 12 18:45:53 CEST 2009
417 - new options --dirs and --files for treescan.
418 - install bin/treescan by default.
419 - (libeio) aio_readdir can now be cancelled while executing.
420 - fix a printf format string for 64 bit systems (could lead
421 to problems on big endian 64 bit systems).
422 - do not use qsort() but our own algorithm: glibc initialises
423 the whole locale and I/O subsystem inside qsort, causing
424 a stack overflow on 32 bit machines. The new sort uses much less
425 stack and is more than twice as fast in typical situations.
426
4273.2 Sun Jun 7 20:30:05 CEST 2009
428 - (libeio) pwrite emulation was even more flawed than intended and did
429 not restore the file offset.
430 - add aio_readdirx, which can return inode and filetype and sort
431 the names in various ways.
432 - unfortunately, utime, chmod, chown on an open file that has just
433 been written can easily block, which caused aio_copy to block the
434 process. no more!
435 - no longer rely on dst path in aio_copy when futime is available.
436
4373.19 Tue Apr 21 22:05:21 CEST 2009
438 - more perl 5.10 workarounds for aio_read and write.
439 - aio_write no longer modifies the sv (if possible).
440 - aio_read now works correctly with magic values.
441
4423.18 Sun Apr 19 21:17:32 CEST 2009
443 - better diagnostics when some aio_* functions get passed an illegal fh.
444 - try to avoid crashes due to incompatible 5.10 API changes. grmbl.
445
4463.17 Thu Nov 20 08:45:36 CET 2008
447 - (libeio) added aio_sync_file_range (untested).
448 - add aio_busy to @IO::AIO::AIO_REQ.
449
4503.16 Wed Oct 22 18:28:01 CEST 2008
451 - use SvREFCNT_inc instead of SvREFCNT_inc_NN in a non-speed critical
452 part to improve portability to perl 5.8 (reported by szymon).
453
4543.15 Mon Oct 13 00:39:55 CEST 2008
455 - automatic removal of feeders was broken.
456 - (libeio) use a more robust method to detect whether a feeder
457 has added something to the group or not.
458
4593.1 Thu Oct 2 13:34:40 CEST 2008
460 - pre-deref the passed callback object, for increased speed
461 and decreased memory usage.
462 - call on_next_submit callback even for aio_group - impact unknown,
463 but seems more correct.
464 - $req->cb now returns the original callback.
465 - (libeio) pass EIO_GROUP/aio_group requests through the queue without
466 requiring a thread switch.
467 - (libeio) status code of aio_futime and aio_utime was always passed 0.
468 - do some other ยต-optimisations.
469
4703.07 Sat Aug 2 16:06:13 CEST 2008
471 - do not include LIBS in autoconf tests.
472
4733.06 Tue Jul 15 12:41:32 CEST 2008
474 - move preadwritelock definition before it's first reference,
475 to make it compile again on broken platforms (they still exist)
476 or badly cofngiured perls (redhat...), reported by Rob Bloodgood.
477
4783.05 Thu Jun 19 23:23:52 CEST 2008
479 - work around perl overriding readdir etc. with thread-unsafe
480 (sic!) versions.
481
4823.04 Wed Jun 18 01:35:38 CEST 2008
483 - (libeio) fix eio_mknod, which confused it's arguments.
484 - (libeio) do not use readdir_r, as Ulrich Drepper pointed out that this
485 is stupid.
486 - (libeio) fix eio__readahead prototype, patch by Jost Krieger.
487 - (libeio) fix a bug that could potentially cause IO::AIO
488 not to get initialised properly.
489
4903.03 Thu May 29 05:33:30 CEST 2008
491 - (libeio) correctly call pthread_attr_destroy ().
492 - (libeio) work around broken bsd headers once more.
493 - reduce shared library size again by not including wrappers.
494 - max_outstanding could cause poll to enter a busy-waiting loop.
495 - document the new IO::AIO::poll_cb result value.
496
4973.02 Mon May 12 02:32:02 CEST 2008
498 - fix a memory leak on aio_readlink.
499 - bring back working fchmod.
500 - nop and busy now set result to 0.
501 - set errno to ENOMEM when allocation fails.
502
5033.01 Sun May 11 03:07:03 CEST 2008
504 - (libeio) make it compile on systems without readahead or readdir_r.
505 - (libeio) improve configure check for readahead availability.
506 - do not try to link against -lrt.
507 - use a separate configure script for IO::AIO (not the libeio one).
508
5093.0 Sun May 11 00:57:14 CEST 2008
510 - added bin/treescan to the distribution.
511 - switched to using libeio.
512 - LOTS OF INCOMPATIBLE CHANGES:
513 - remove signal functionality, it is not worth the effort.
514 - max_outstanding no longer returns the previous number of requests.
515 - poll_cb no longer returns number of requests.
516
5172.62 Sat Apr 26 13:59:33 CEST 2008
518 - port to solaris perls configured for old posix
519 (analysed by Jost Krieger).
520 - keep a reference to the perl filehandle object in aio_close,
521 so it doesn't get closed prematurely, leading to ugly races.
522
5232.61 Wed Apr 16 18:45:02 CEST 2008
524 - fix treescan output duplication and improve output ordering.
525 also display files given on the commandline.
526 - use a different algorithm for aio_close that is faster
527 and probably has even lower chances of blocking.
528 - do our own stack memory management for threads - linux
529 allocates outrageous amounts of VM (not so bad unless you
530 use mlockall...), which severely limits the number of threads
531 on 32-bit arches: stack size is the larger of PTHREAD_STACK_MIN
532 and 4096 * sizeof (long) (usually this is 16..64k).
533
5342.6 Sun Mar 30 08:28:11 CEST 2008
535 - added aio_sync.
536 - added aio_pathsync.
537 - fix prototypes of (void) functions.
538
5392.51 Sat Oct 6 16:04:54 CEST 2007
540 - perlio isn't generally threadsafe, so aio_close could not work reliably.
541 aio_close now tries a safe hack that might not be that asynchronous
542 (see the manpage for details).
543 - discard callback return values as to not grow the stack endlessly
544 when poll_cb handles many requests without returning.
545 - minor code cleanups.
546
5472.5 Thu Oct 4 14:49:08 CEST 2007
548 - replaced _fd2fh with faster xs code.
549 - aio_close will now try to do "the right thing" and thus might
550 work sensibly for the very first time.
551
5522.41 Mon Sep 24 21:28:21 CEST 2007
553 - after fork, invest some work to make sure that the poll_fileno
554 stays stable (by dup2'ing the new fd over the old one), to make
555 it easier for programs/libs that don't control their forking
556 behaviour and cannot recreate their watchers.
557
5582.4 Sun Aug 5 18:44:22 CEST 2007
559 - add aio_truncate, aio_chmod, aio_chown, aio_utime (linux
560 successfully demonstrated that you can block on futimes...).
561 - allow undef as fileoffset for aio_read/write and use read/write(2)
562 internally (useful for sockets or O_APPEND handles).
563 - allow undef for length in aio_write.
564 - negative dataoffsets work as expected now in aio_read/aio_write.
565 - use NV instead of UV for 32 bit perls and file offsets, as NVs
566 have a larger range then.
567 - shared code between BDB and IO::AIO.
568 - aio_busy was completely broken. now fixed.
569 - readahead emulation now returns something.
570 - correctly set errno to ENOSYS on unimplemented functions
571 (should never happen, though).
572 - large changes to make it partially compile and run on win32,
573 but win32 lacks too much functionality, and perl overrides way
574 too many functions with crashing versions.
575
5762.33 Tue Jan 23 23:55:41 CET 2007
577 - fix install path (Andreas J. Koenig).
578
5792.32 Mon Jan 22 16:56:23 CET 2007
580 - added aio_rmtree.
581 - wow, aio_mkdir was missing.
582 - aio_load did return undef on error, not -1.
583 - use prefixexp not prefix in autoconf.pm
584 (suggested by ... rt.cpan.org unreachable).
585 - avoid installing autoconf.pm.
586
5872.31 Sat Jan 6 03:46:02 CET 2007
588 - added aio_load.
589
5902.3 Sat Dec 23 05:48:07 CET 2006
591 - fix off-by-one bug in aio_read, causing memory corruption
592 or crashes.
593
5942.21 Fri Dec 22 05:03:38 CET 2006
595 - minor doc updates.
596 - minor cleanups.
597 - IO::AIO::poll returns request count.
598 - undocumented and unfinished async-signal-reporting.
599
6002.2 Tue Oct 31 00:31:00 CET 2006
601 - minor doc updates.
602 - added aio_readlink.
603 - properly zero-terminate aio_read buffer.
604 - fix aio_read/write with nonzero dataoffset.
605 - reduced size of aio request structure.
606 - better diagnostics when pathnames etc. are not byte-encoded;
607 do not leak request in that case, either.
608
6092.1 Sun Oct 29 02:01:57 CET 2006
610 - INCOMPATIBLE CHANGE: replace IO::AIO::poll_some by
611 IO::AIO::max_poll_reqs and IO::AIO::max_poll_time.
612 - fix a bug in aio_move where it would fail everytime
613 it would have to copy files manually.
614 - doc updates.
615 - start threads only on (very low) demand.
616 - end superfluous threads automatically after 10s idling.
617 - add IO::AIO::max_idle to control this.
618 - some tuning applied to random places.
619 - add aio_mknod.
620
6212.0 Thu Oct 26 18:27:58 CEST 2006
622 - minor incompatibility: max_outstanding semantics have changed.
623 - major rewrite, consider all functionality EXPERIMENTAL.
7 - aio requests can be cancelled. 624 - aio requests can be cancelled.
8 - callbacks can be (re-)set later. 625 - callbacks can be (re-)set later.
9 - aio requests can have choose 9 priorities. 626 - aio requests can choose between 9 priorities.
10 - add aio_group: aio requests can be grouped 627 - add aio_group: aio requests can be grouped
11 into composite requests. 628 into composite requests.
12 - generator interface for groups. 629 - generator interface for groups.
630 - add IO::AIO::poll_some.
13 - major documentation improvements. 631 - major documentation improvements.
14 - very minor bugfixes. 632 - very minor bugfixes.
15 - add aio_nop for dummy requests. 633 - add aio_nop for dummy requests.
16 - add aio_busy mainly for benchmarking and debugging. 634 - add aio_busy mainly for benchmarking and debugging.
17 - deprecated max_outstanding.
18 - use "fast" mutexes on linux. 635 - use "fast" mutexes on linux.
19 - use dynamic (and larger) buffers instead of 636 - use dynamic (and larger) buffers instead of
20 putting them onto the stack. 637 putting them onto the stack.
21 - optimise x86 and amd64 a bit. 638 - optimise x86 and amd64 a bit.
22 - better error checking when ENOMEM. 639 - better error checking when ENOMEM.
23 - hopefully fix mem and dirp leaks on fork. 640 - hopefully fix mem and dirp leaks on fork.
641 - warn about broken perl malloc.
642 - compiles on cygwin (but pread is broken on cygwin
643 which is not detected by autoconf, so you have to
644 edit autoconf/config.h yourself to enable emulation).
24 645
251.8 Sat Jun 24 22:20:44 CEST 2006 6461.8 Sat Jun 24 22:20:44 CEST 2006
26 - add and/or document aio_rename, aio_link, aio_symlink and aio_move. 647 - add and/or document aio_rename, aio_link, aio_symlink and aio_move.
27 648
281.73 Wed Mar 1 22:49:32 CET 2006 6491.73 Wed Mar 1 22:49:32 CET 2006
62 - somebody nagged about C89 compatibility, so this release should 683 - somebody nagged about C89 compatibility, so this release should
63 be C89 compatible, but no guarantees for future ones. 684 be C89 compatible, but no guarantees for future ones.
64 - abort when the configure script fails. 685 - abort when the configure script fails.
65 686
661.4 Wed Aug 17 08:07:27 CEST 2005 6871.4 Wed Aug 17 08:07:27 CEST 2005
67 - forget to recreate the pipe after forking, this could cause 688 - forgot to recreate the pipe after forking, this could cause
68 deadlocks. 689 deadlocks.
69 690
701.3 Wed Aug 17 07:25:54 CEST 2005 6911.3 Wed Aug 17 07:25:54 CEST 2005
71 - properly propagate exceptions from callbacks, instead of silently 692 - properly propagate exceptions from callbacks, instead of silently
72 eating them. 693 eating them.

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