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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 1.379 by root, Sun Mar 10 12:11:46 2019 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? 5TODO: vmsplice? (http://kerneltrap.org/node/6505 http://lwn.net/Articles/178199/)
6TODO: reduce condvar fairness: schedule hot-cache-threads first? 6TODO: getxattr, setxattr, listxattr, removexattr etc.?
7TODO: fix setsig 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: 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);
20TODO: name_to_handle_At + open_by_handle_at = clone fds
21TODO: lchown
22TODO: mount/umount2/MS_* flags
8 23
92.31 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
40
414.71 Sun Mar 10 13:09:26 CET 2019
42 - due to an error in the linux manpages, the configure tests
43 for readahead, sync_file_range, splice etc. failed. This has been fixed.
44
454.7 Mon Mar 4 11:28:13 CET 2019
46 - majorly speed up scandir for the very special case of a non-POSIX
47 filesystem that nevertheless reports valid dt_type information.
48 The only known filesystem of this type is currently btrfs, which
49 didn't get it's act together to implement POSIX semantics in all
50 these years, and I am tired of waiting.
51 - add IO::AIO::MCL_ONFAULT for mlockall, add IO::AIO::mlockall.
52 - neither sys/mkdev.h nor sys/sysmacros.h were included, even when they
53 were detected by autoconf.
54
554.6 Sat Aug 25 21:58:36 CEST 2018
56 - add st_btime, st_btimesec, st_btimensec and st_gen accessors,
57 mostly for bsds which expose birthtime and st_gen members (netbsd, freebsd
58 but only st_gen on openbsd because they compiled their perl without support
59 for birthtimes).
60 - fix madvise and munlock to properly support negative offsets.
61 - allocate fd for the aio_close at boot time, to guarantee it working
62 later, rather than calling abort when it fails. also avoids
63 close-on-exec race issues after module load.
64 - #undef utime on win32, maybe this helps some reports of utime hangs.
65 - minor doc improvements.
66 - minor configure cleanups.
67 - use $Config{perllibs} instead of libs for configure. might help people
68 who didn't install all perl dependencies (might break things as well).
69
704.54 Tue Aug 14 13:54:48 CEST 2018
71 - include sys/mkdev.h or sys/sysmacros.h if available.
72 - further tweaks to configure invocation for systems requiring --rpath.
73 - no longer rely on custom paths on win32 platforms.
74 - try to work around buggy PAGESIZE macro on solaris.
75
764.53 Tue Aug 14 11:27:50 CEST 2018
77 - add $Config{libs} to LIBS for configure, to work around systems
78 with broken library dependencies (... openbsd).
79
804.52 Sun Aug 12 08:09:45 CEST 2018
81 - config.h.in was missing in distribution.
82
834.51 Sun Aug 12 07:24:14 CEST 2018
84 - complete rework of the autoconf framework: IO::AIO now uses its own
85 config.h, separate from libeio, and tries to test the actual perl
86 environment, not the standard system environment.
87 - provide nanosecond-accracy stat time accessors for both perl and IO::AIO
88 stat functions.
89 - removed non-portable C++ syntax from eio.c.
90 - try to fix readdir tests on cygwin spuriously failing.
91
924.5 Wed Aug 1 00:23:55 CEST 2018
93 - aio_mtouch touch all pages as requested, not just the first page in most cases.
94 - new function: IO::AIO::mremap, linux-specific mremap, with constants MREMAP_MAYMOVE
95 and MREMAP_FIXED.
96 - add O_ACCMODE.
97 - add (undocumented) MSG_CMSG_CLOEXEC and SOCK_CLOEXEC constants.
98
994.4 Tue Feb 20 07:54:12 CET 2018
100 - new aio_slurp request.
101 - add (experimental) IO::AIO::eventfd and timerfd* function.
102 - add (experimental) IO::AIO::get_fdlimit and IO::AIO::min_fdlimit.
103 - point out that aio_copy overwrites existing files.
104 - removed filesystem magic number table from aio_statvfs docs as
105 statvfs doesn't actually return this info at all (statfs does).
106 - add a bunch of (mostly linux-specific) constants for use in ioctls
107 (see aio_ioctl docs).
108 - treescan now has a proper manpage and useful --help output.
109 - new option --sync in treescan, to sync everything in a subtree.
110 - changed default for aio_msync flags to MSYNC_SYNC.
111 - document offset/length behaviour of mprotect/madvise.
112 - support linux's renameat2 (via aio_rename2).
113 - add aio_rename2, an aio_rename with flags.
114 - add F_DUPPFD_CLOEXEC, F_OFD_[SG]ETLKW? constants.
115 - add FALLOC_FL_INSERT_RANGE, FALLOC_FL_UNSHARE_RANGE.
116 - (libeio) use posix_close if available.
117 - (libeio) internal close() calls no longer disturb errno.
118 - add IO:AIO::FALLOC_FL_UNSHARE.
119 - update schmorp.h for removal of USE_SOCKETS_AS_HANDLES
120 and better eventfd detection.
121
1224.34 Sun May 1 19:18:24 CEST 2016
123 - def0.h was not properly generated during previous release, causing
124 compile errors on various platforms.
125 - major/minor were accidentally switched (reported by Alexander Lishenyuk).
126 - removed duplicate definition of MAP_HUGETLB, that was found due to
127 a bug in Perl::Tidy (testcase by alaska332@gmail.com).
128 - added (untested!) aio_fcntl, aio_ioctl requests.
129 - (libeio) names set via prctl are truncated to 15 chars + nul, not 16,
130 as manpages-dev originally claimed.
131
1324.33 Mon Jan 18 12:50:10 CET 2016
133 - add IO::AIO::pipe2 function.
134 - added support for FALLOC_FL_COLLAPSE_RANGE and FALLOC_FL_ZERO_RANGE
135 constants.
136 - added support for O_TMPFILE and O_PATH constants.
137 - added support for MAP_FIXED, MAP_GROWSDOWN,MAP_32BIT, MAP_HUGETLB, MAP_STACK
138 consdtants, whether they can be sensibly used or not.
139 - use NO_INIT where applicable.
140 - update libecb.
141 - added stability canary support.
142 - updated linux super magic table to 4.3.3.
143
1444.32 Wed Feb 11 20:32:11 CET 2015
145 - replace off_t by STRLEN where appropriate, should not result in
146 user-visible changes.
147 - update ecb.h for C11 compatibility.
148
1494.31 Tue Jun 3 03:29:27 CEST 2014
150 - work around more 5.20 bugs. backwards compatibility my ass.
151
1524.3 Fri Apr 11 06:22:38 CEST 2014
153 - perl5porters broke Async::Interrupt, BDB, EV, IO::AIO, OpenCL
154 without warning by switching the meaning of USE_SOCKETS_AS_HANDLES
155 in 5.18. What's so attractive about giving a shit about backwards
156 compatibility - I will never understand.
157
1584.2 Sat Jan 25 01:13:14 CET 2014
159 - aio_group could corrupt memory because it didn't restore
160 the stack after req_submit.
161 - be more careful on (e.g. permission) errors in bin/treescan.
162 - work around changes in ExtUtils::MakeMaker.
163 - (libeio) implement aio_realpath for win32.
164 - (xthread) work around compile time bugs in ptw32.
165 - added IO::AIO::pipesize.
166 - (libecb) insignificant update.
167
1684.19 Sun Jan 6 12:47:26 CET 2013
169 - avoid endless loop in fiemap with some XFS files.
170 - in aio_rename and aio_rmdir, specialcase the case of [$wd, "."]
171 and call rename/rmdir instead of renameat/unlinkat.
172
1734.18 Thu Oct 11 07:01:26 CEST 2012
174 - fix unintended xthread_create by intentionalising it :)
175
1764.17 Thu Oct 11 05:19:47 CEST 2012
177 - rename aio_fallocate to aio_allocate, to match documentation.
178 - add list of linux fsid values to aio_statvfs docs.
179 - work around a bug in btrfs' FIEMAP ioctl implementation.
180 - work around AIX bug: statvfs.f_fsid is a struct, not unsigned long
181 as per unix spec.
182
1834.16 Tue Aug 14 05:39:03 CEST 2012
184 - aio_statvfs was wromgly marked for wd emulation, causing
185 it to malfunction for paths.
186 - fix a crash in aio_fiemap, when used on ranges without any
187 extents.
188 - work around linux kernel bug (at least in 3.2): kernel might
189 trash fiemap input arguments.
190 - work around linux kernel bug (at least in 3.2): kernel does not
191 set FIEMAP_EXTENT_LAST on last segment.
192 - work around linux kernel bug (at least in 3.2): kernel silently
193 truncates segment count if a file.
194 - make fh argument of IO::AIO::mmap optional, also add mmap/munmap
195 to quick overview.
196 - splice can corrupt data.
197 - (libeio) remove pread/pwrite emulation.
198 - do not grow mmaped scalars in aio_read.
199 - add FALLOC_FL_PUNCH_HOLE and document fallocate.
200 - provide pread/pwrite for win32, making it link again on native win32.
201
2024.15 Tue Apr 10 06:59:00 CEST 2012
203 - always include linux/types.h for fiemap, for compatibility to
204 ancient systems (Paul Howarth).
205 - experimental support for IO::AIO::splice and ::tee (no aio_...).
206 - provide SEEK_HOLE and SEEK_DATA, if available.
207 - work around (again!) an immensely stupid bug in RHEL, defining
208 autoconf macros in linux system headers (analysed by Paul Howarth).
209
2104.14 Sat Apr 7 02:45:18 CEST 2012
211 - fix stat structure usage on windows, which caused bogus stat results.
212 - (libeio) make readahead emulation behave more like actual readahead by never failing.
213 - new request aio_seek.
214 - new request aio_fiemap.
215 - autogenerate the #ifdef/#define 0 blocks for symbols we export.
216
2174.12 Fri Dec 30 08:51:25 CET 2011
218 - realpath would return a random value if the name was too long,
219 instead of -1.
220 - port to c89.
221
2224.11 Mon Oct 10 00:24:11 CEST 2011
223 - libeio didn't compile on !linux (Paul Howarth).
224
2254.1 Sun Oct 9 10:24:11 CEST 2011
226 - IO::AIO did access uninitialised memory on unsuccessful stats.
227 - (libeio) added syncfs syscall wrapper.
228 - (libeio) set thread name on linux (ps -L/Hcx, top, gdb).
229 - (libeio) support multiple indepenent working directories.
230 - applied speling corrections by Nicholas Bamber.
231 - tune treescan #threads and #outstanding requests a bit.
232 - reduce the number of file descriptors in use at any one time
233 in treescan, to avoid running out of them (and using too much ram).
234 - take advantage of working directoriy abstractions
235 in aio_scandir and treescan.
236 - reduce compiled size by ~10% by not inlining some key functionality.
237 - added --progress switch to treescan.
238
2394.0 Mon Jul 18 05:01:10 CEST 2011
240 - INCOMPATIBLE CHANGE: fork is no longer supported (indeed, it never was),
241 see FORK BEHAVIOUR in manpage for details.
242 - passes testsuite on win32 now and may actually work
243 (activestate 5.10.1 / MSVC6, YMMV).
244 - (libeio) fix a deadlock where a wakeup signal could be missed when
245 a timeout occured at the same time.
246 - (libeio) added realpath.
247 - (libeio) added fallocate.
248 - (libeio) disabling sendfile on darwin unfortunately broke the emulation.
249 - (libeio) do not acquire any locks when forking.
250 - (libeio) use fewer time() syscalls when waiting for new requests.
251
2523.93 Wed Jun 29 23:44:18 CEST 2011
253 - ECB.H WAS MISSING.
254
2553.92 Wed Jun 29 14:45:41 CEST 2011
256 - ecb.h was missing.
257
2583.91 Wed Jun 29 13:24:42 CEST 2011
259 - (libeio) work around a Linux (and likely FreeBSD and other
260 kernels) bug where sendfile would not transfer all the requested
261 bytes on large transfers, using a heuristic.
262 - buggy sendfile caused aio_move/copy to sometimes fail for big
263 files (fortunately it checks that the whole file has been
264 transferred...)
265 - use libecb for higher performance and higher portability.
266 - (libeio) disable sendfile on darwin, it's too broken.
267 - disable fork tests on !linux, as only linux supports mixing
268 pthread and fork in perl.
269 - document the fact that fork doesn't work anymore when using
270 this module, on anything !GNU/Linux.
271 - increase timeout in t/04_fork.t, as too many CPAN-tester setups
272 run on a 0.1MHz cpu. Or so.
273
2743.9 Fri May 27 02:43:47 CEST 2011
275 - (libeio) fix memory corruption in aio_readdirx for the flags
276 combination READDIR_STAT_ORDER | READDIR_DIRS_FIRST.
277 - add lots of newer POSIX and GNU/Linux-specific open
278 flags.
279
2803.8 Sun Mar 27 12:25:33 CEST 2011
281 - use nonstandard but maybe-working-on-bsd fork technique.
282 - support a max_idle value of 0.
283 - support setting of idle timeout value (IO::AIO::idle_timeout).
284
2853.72 Fri Feb 11 04:25:38 CET 2011
286 - use _POSIX_MEMLOCK_RANGE to detect mlock/munlock.
287 - aio_mknod always used a dev_t value of 0.
288 - new treescan option: --grep.
289 - add more S_IF macros, and major/minor/makedev "macros".
290
2913.71 Thu Dec 30 08:18:46 CET 2010
292 - the numerical result value passed to callbacks did not stringify
293 correctly, due to internal reuse and failure to reset the sv flags.
294 - actually test for posix_[mf]advise, as at least uClibc defines
295 _POSIX_ADVISORY_INFO without actually having any of the required
296 funcitonality. ugh.
297
2983.7 Mon Nov 1 23:00:34 CET 2010
299 - implement/add madvise, mmap, munmap, aio_mlockall, munlockall,
300 aio_mlock, munlock, msync and mtouch to @EXPORT_OK.
301 - document the sad state of affairs w.r.t. pthread on many bsds.
302 - do not enable mmap on systems without _POSIX_MAPPED_FILES
303 (openbsd 4.8).
304 - do not leak memory in IO::AIO::mmap when the scalar already
305 had string-data.
306 - add O_RDWR, O_APPEND and O_EXCL symbols and semi-document
307 them.
308 - cache the result IV, for a minor speedup in the common case.
309 - croak when an mmapped-scalar changes location, to detect
310 user-errors better.
311 - fix aio_readlink prototype.
312
3133.65 Wed Mar 31 02:45:05 CEST 2010
314 - actually use PATH_MAX instead of NAME_MAX for readlink, as to not
315 cut off long pathnames in aio_readlink (based on patch by
316 Rasmus Andersson).
317 - a double fork partially killed the event pipe (great testcase
318 by dormando). affects IO::AIO, BDB and Async::Interrupt.
319 - suck steve's dick and rename our symbols to avoid colliding
320 with nonstandard identifier spam on the broken os x pseudo-os.
321 affects IO::AIO and BDB.
322
3233.6 Mon Jan 11 00:43:39 CET 2010
324 - (libeio) more fixes for the freebsd/apple sendfile - broken by
325 manpage standards, but apparently correct accoridng to actual
326 kernel sources.
327 - add IO::AIO::mmap/munmap support.
328 - add IO::AIO::m(un)lockall support.
329 - clean up manpage.
330
3313.5 Thu Jan 7 21:25:04 CET 2010
332 - (liebio) fix freebsd sendfile (Vanilla Hsu).
333 - (libeio) also fix darwin sendfile that suffered from a similar bug.
334 - add aio_statvfs as interface to statvfs/fstatvfs.
335 - work around buggy symlink() on cygwin in the testsuite.
336 - wtf. freebsd-8.0 actually passes the testsuite! I knew
337 they could implement fork and semaphores one day! cheers!
338
3393.4 Sat Jan 2 15:13:04 CET 2010
340 - (libeio) max_poll_time was not properly converted to ticks.
341 - clarify cancel_subs description.
342 - IO::AIO::sendfile did not actually return the return value
343 from the sendfile call.
344 - implement aio_msync, aio_mtouch.
345 - (libeio) tentatively support darwin in sendfile.
346
3473.31 Thu Nov 12 02:14:29 CET 2009
348 - fix result status documentation of aio_copy, aio_move.
349 - speed up object creation considerably by avoiding
350 hash lookups.
351
3523.3 Wed Aug 5 13:52:58 CEST 2009
353 - use common::sense.
354 - use common schmorp.h header.
355 - allow integers (file descriptors) in addition to file handles.
356 - take advantage of linux' eventfd (but it seems slower on smp?).
357 - use poll not select on posix platforms.
358
3593.261 Wed Jul 1 10:11:51 CEST 2009
360 - more 0S X workarounds (patch by Tokuhiro Matsuno).
361
3623.26 Tue Jun 30 09:33:26 CEST 2009
363 - 0S X of course claims to be posix 2008 but lacks posix_fadvise.
364 try to work around this horribly broken OS in a somewhat hackish
365 way. might help other os's too.
366
3673.25 Sat Jun 27 05:18:26 CEST 2009
368 - added IO::AIO::fadvise and IO::AIO::sendfile.
369 - (libeio) replaced quicksort+insertion sort by a tuned radix
370 sort + insertion sort, resulting in comparable runtime (usually
371 faster) to the old version, but without any ill side effects on
372 degenerated (for quicksort) data.
373 - (libeio) correctly sort dirs by inodes if we have perfect type
374 knowledge and DIRS_FIRST is used.
375 - (libeio) internally the wrong DT_* constants were used, but no
376 known system has differing EIO_DT_*/DT_* values, so not an issue.
377 - removed a (harmless) assert that was left over on the code
378 but should not have been.
379 - use more correct types (change IO length from IV to VAL64,
380 which makes a difference on systems without 64 bit perls).
381
3823.23 Sat Jun 13 16:57:58 CEST 2009
383 - fix off-by-one bug in aio_readdir that was introduced in the
384 rushed 3.22 release.
385
3863.22 Sat Jun 13 15:32:40 CEST 2009
387 - speed up readdirx sort algorithm slightly.
388 - bin/treescan was missing from distro tarball.
389
3903.21 Fri Jun 12 18:45:53 CEST 2009
391 - new options --dirs and --files for treescan.
392 - install bin/treescan by default.
393 - (libeio) aio_readdir can now be cancelled while executing.
394 - fix a printf format string for 64 bit systems (could lead
395 to problems on big endian 64 bit systems).
396 - do not use qsort() but our own algorithm: glibc initialises
397 the whole locale and I/O subsystem inside qsort, causing
398 a stack overflow on 32 bit machines. The new sort uses much less
399 stack and is more than twice as fast in typical situations.
400
4013.2 Sun Jun 7 20:30:05 CEST 2009
402 - (libeio) pwrite emulation was even more flawed than intended and did
403 not restore the file offset.
404 - add aio_readdirx, which can return inode and filetype and sort
405 the names in various ways.
406 - unfortunately, utime, chmod, chown on an open file that has just
407 been written can easily block, which caused aio_copy to block the
408 process. no more!
409 - no longer rely on dst path in aio_copy when futime is available.
410
4113.19 Tue Apr 21 22:05:21 CEST 2009
412 - more perl 5.10 workarounds for aio_read and write.
413 - aio_write no longer modifies the sv (if possible).
414 - aio_read now works correctly with magic values.
415
4163.18 Sun Apr 19 21:17:32 CEST 2009
417 - better diagnostics when some aio_* functions get passed an illegal fh.
418 - try to avoid crashes due to incompatible 5.10 API changes. grmbl.
419
4203.17 Thu Nov 20 08:45:36 CET 2008
421 - (libeio) added aio_sync_file_range (untested).
422 - add aio_busy to @IO::AIO::AIO_REQ.
423
4243.16 Wed Oct 22 18:28:01 CEST 2008
425 - use SvREFCNT_inc instead of SvREFCNT_inc_NN in a non-speed critical
426 part to improve portability to perl 5.8 (reported by szymon).
427
4283.15 Mon Oct 13 00:39:55 CEST 2008
429 - automatic removal of feeders was broken.
430 - (libeio) use a more robust method to detect whether a feeder
431 has added something to the group or not.
432
4333.1 Thu Oct 2 13:34:40 CEST 2008
434 - pre-deref the passed callback object, for increased speed
435 and decreased memory usage.
436 - call on_next_submit callback even for aio_group - impact unknown,
437 but seems more correct.
438 - $req->cb now returns the original callback.
439 - (libeio) pass EIO_GROUP/aio_group requests through the queue without
440 requiring a thread switch.
441 - (libeio) status code of aio_futime and aio_utime was always passed 0.
442 - do some other ยต-optimisations.
443
4443.07 Sat Aug 2 16:06:13 CEST 2008
445 - do not include LIBS in autoconf tests.
446
4473.06 Tue Jul 15 12:41:32 CEST 2008
448 - move preadwritelock definition before it's first reference,
449 to make it compile again on broken platforms (they still exist)
450 or badly cofngiured perls (redhat...), reported by Rob Bloodgood.
451
4523.05 Thu Jun 19 23:23:52 CEST 2008
453 - work around perl overriding readdir etc. with thread-unsafe
454 (sic!) versions.
455
4563.04 Wed Jun 18 01:35:38 CEST 2008
457 - (libeio) fix eio_mknod, which confused it's arguments.
458 - (libeio) do not use readdir_r, as Ulrich Drepper pointed out that this
459 is stupid.
460 - (libeio) fix eio__readahead prototype, patch by Jost Krieger.
461 - (libeio) fix a bug that could potentially cause IO::AIO
462 not to get initialised properly.
463
4643.03 Thu May 29 05:33:30 CEST 2008
465 - (libeio) correctly call pthread_attr_destroy ().
466 - (libeio) work around broken bsd headers once more.
467 - reduce shared library size again by not including wrappers.
468 - max_outstanding could cause poll to enter a busy-waiting loop.
469 - document the new IO::AIO::poll_cb result value.
470
4713.02 Mon May 12 02:32:02 CEST 2008
472 - fix a memory leak on aio_readlink.
473 - bring back working fchmod.
474 - nop and busy now set result to 0.
475 - set errno to ENOMEM when allocation fails.
476
4773.01 Sun May 11 03:07:03 CEST 2008
478 - (libeio) make it compile on systems without readahead or readdir_r.
479 - (libeio) improve configure check for readahead availability.
480 - do not try to link against -lrt.
481 - use a separate configure script for IO::AIO (not the libeio one).
482
4833.0 Sun May 11 00:57:14 CEST 2008
484 - added bin/treescan to the distribution.
485 - switched to using libeio.
486 - LOTS OF INCOMPATIBLE CHANGES:
487 - remove signal functionality, it is not worth the effort.
488 - max_outstanding no longer returns the previous number of requests.
489 - poll_cb no longer returns number of requests.
490
4912.62 Sat Apr 26 13:59:33 CEST 2008
492 - port to solaris perls configured for old posix
493 (analysed by Jost Krieger).
494 - keep a reference to the perl filehandle object in aio_close,
495 so it doesn't get closed prematurely, leading to ugly races.
496
4972.61 Wed Apr 16 18:45:02 CEST 2008
498 - fix treescan output duplication and improve output ordering.
499 also display files given on the commandline.
500 - use a different algorithm for aio_close that is faster
501 and probably has even lower chances of blocking.
502 - do our own stack memory management for threads - linux
503 allocates outrageous amounts of VM (not so bad unless you
504 use mlockall...), which severely limits the number of threads
505 on 32-bit arches: stack size is the larger of PTHREAD_STACK_MIN
506 and 4096 * sizeof (long) (usually this is 16..64k).
507
5082.6 Sun Mar 30 08:28:11 CEST 2008
509 - added aio_sync.
510 - added aio_pathsync.
511 - fix prototypes of (void) functions.
512
5132.51 Sat Oct 6 16:04:54 CEST 2007
514 - perlio isn't generally threadsafe, so aio_close could not work reliably.
515 aio_close now tries a safe hack that might not be that asynchronous
516 (see the manpage for details).
517 - discard callback return values as to not grow the stack endlessly
518 when poll_cb handles many requests without returning.
519 - minor code cleanups.
520
5212.5 Thu Oct 4 14:49:08 CEST 2007
522 - replaced _fd2fh with faster xs code.
523 - aio_close will now try to do "the right thing" and thus might
524 work sensibly for the very first time.
525
5262.41 Mon Sep 24 21:28:21 CEST 2007
527 - after fork, invest some work to make sure that the poll_fileno
528 stays stable (by dup2'ing the new fd over the old one), to make
529 it easier for programs/libs that don't control their forking
530 behaviour and cannot recreate their watchers.
531
5322.4 Sun Aug 5 18:44:22 CEST 2007
533 - add aio_truncate, aio_chmod, aio_chown, aio_utime (linux
534 successfully demonstrated that you can block on futimes...).
535 - allow undef as fileoffset for aio_read/write and use read/write(2)
536 internally (useful for sockets or O_APPEND handles).
537 - allow undef for length in aio_write.
538 - negative dataoffsets work as expected now in aio_read/aio_write.
539 - use NV instead of UV for 32 bit perls and file offsets, as NVs
540 have a larger range then.
541 - shared code between BDB and IO::AIO.
542 - aio_busy was completely broken. now fixed.
543 - readahead emulation now returns something.
544 - correctly set errno to ENOSYS on unimplemented functions
545 (should never happen, though).
546 - large changes to make it partially compile and run on win32,
547 but win32 lacks too much functionality, and perl overrides way
548 too many functions with crashing versions.
549
5502.33 Tue Jan 23 23:55:41 CET 2007
551 - fix install path (Andreas J. Koenig).
552
5532.32 Mon Jan 22 16:56:23 CET 2007
554 - added aio_rmtree.
555 - wow, aio_mkdir was missing.
556 - aio_load did return undef on error, not -1.
557 - use prefixexp not prefix in autoconf.pm
558 (suggested by ... rt.cpan.org unreachable).
559 - avoid installing autoconf.pm.
560
5612.31 Sat Jan 6 03:46:02 CET 2007
10 - added aio_load. 562 - added aio_load.
11 563
122.3 Sat Dec 23 05:48:07 CET 2006 5642.3 Sat Dec 23 05:48:07 CET 2006
13 - fix off-by-one bug in aio_read, causing memory corruption 565 - fix off-by-one bug in aio_read, causing memory corruption
14 or crashes. 566 or crashes.

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