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Comparing IO-AIO/Changes (file contents):
Revision 1.107 by root, Wed Nov 8 01:57:43 2006 UTC vs.
Revision 1.414 by root, Fri Feb 16 21:20:52 2024 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: 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: ioprio_get/set
7 22
23TODO: rewrite rmtree et al. to support working directories (also speed them up)
24TODO: maybe IO::AIO leaks fds when requests are cancelled? maybe initialise result to -1?
25TODO: aio_wd should use O_PATH on linux, due to lacking O_SEARCH (http://comments.gmane.org/gmane.linux.file-systems/33611)
26 http://www.openwall.com/lists/musl/2013/02/23/4
27TODO: FIDEDUPERANGE, file_ioctl.c
28TODO: mincore
29TODO: SOCK_CLOEXEc etc.
30TODO: unlinkat flags, linkat flags, statat, renameat2 flags
31TODO: https://kernelnewbies.org/Linux_4.11
32TODO: define useful rules for [[$wd, $path], $path] &c and implement them
33TODO: https://github.com/coreutils/coreutils/blob/master/src/stat.c maybe IO::AIO::FSID
34TODO: mlock2, MLOCK_ONFAULT
35TODO: dup3, pipe2, accept4
36TODO: dump config.log when automated testign and configure fails
37TODO: ns time resolution in utime
38TODO: statx
39TODO: aio_fchdir/chdir? emulate chdirat?
40TODO: rt-4.0.18-20109-1573826674-1229.126277-5-0@rt.cpan.org
41TODO: aio_splice, aio_tee
42TODO: copy_file_range
43TODO: write more abpout the thread model, maybe bump some defaults?
44TODO: io_uring, but it's so broken :/
45TODO: allow import of fds as aio_wd
46TODO: close_range
47TODO: move_mount, open_tree, fsmount, fspick, fsconfig, fsopen https://lwn.net/Articles/759499/
48TODO: aio_mmap
49
50 - work around a bug in musl w.r.t to O_SEARCH and use EIO_O_PATH instead,
51 vertifying the semantics against the subset of O_PATH and O_SEARCH
52 (based on a report by Steve Dondley).
53 - aio_copy now tries to preallocate the destination file.
54 - fexecve configure test used the wrong püointer type (patch by Paul Howarth).
55
564.80 Sat 01 Apr 2023 04:13:37 CEST
57 - remove long obsolete "paths must be absolute" text in aio_open/stat
58 descriptions.
59 - another workaround for the low-quality musl libc.
60 - test for umount seperately, as it is more portable.
61 - some low-quality posix attempts (openbsd, osx) declare the availability
62 of fexecve but then don't even bother to implemnent a stub.
63
644.79 Sun 25 Sep 2022 18:25:53 CEST
65 - the autoconf result of the mount check was not used, so it failed to
66 compile on most systems (reported by crackoff@tutanota.com).
67 - work around fedora not having a working C compiler setup by design
68 (reported by Paul Howarth).
69
704.78 Tue 06 Sep 2022 12:54:43 CEST
71 - add IO::AIO::mount and IO::AIO::umount.
72 - add a bunch of symbols from sys/mount.h.
73
744.77 Mon 05 Sep 2022 02:03:38 CEST
75 - add MFD_HUGETLB_2MB and MFD_HUGETLB_1GB constants.
76 - add fexecve.
77 - add lots of missing functions to @EXPORT_OK.
78
794.76 Tue Jul 27 20:45:01 CEST 2021
80 - add autoconf test for siginfo_t, which is, of course, not
81 available on windows (reported by Peter Petky).
82 - disable syscalls on solaris, as perl seems to provide an
83 incompatible syscall prototype that clashes with sys/syscall.h.
84 - add MAP_FIXED_NOREPLACE, MAP_SHARED_VALIDATE, MAP_SYNC and
85 MAP_UNINITIALIZED.
86
874.75 Wed Dec 30 08:44:55 CET 2020
88 - removed leftover debug output from treescan.
89 - added (but not documented) waitid-P_*, FSPICK_*, FSOPEN_*,
90 FSCONFIG_*, MOUNT_ATTR_* constants.
91
924.74 Tue Dec 29 16:19:28 CET 2020
93 - added pidfd_open, pidfd_getfd and pidfd_send_signal functions.
94 - rework bin/treescan to avoid recursion. This fixes two bugs
95 where a deep directory traversal or a lot of command line
96 arguments could cause it to crash.
97 - added (but not documented) open_tree, AT_* and move_mount flags.
98 - support defining syscall numbers in gendef0.
99
1004.73 Fri Dec 4 02:08:37 CET 2020
101 - def0.h was not uptodate, running into musl problems
102 (reported by B Fraser).
103 - IO::AIO::splice and IO::AIO::tee didn't properly return
104 64 bit values.
105 - added IO::AIO::accept4.
106 - add various F_SEAL related fcntl constants.
107 - removed experimental marker for fdlimit functions.
108 - fiemap now includes the last segment even if it overflows
109 the end offset, which is arguably the correct behaviour.
110
1114.72 Wed Apr 3 04:56:03 CEST 2019
112 - (libeio) if fd 0 is available do not use it for aio_wd, as it
113 collides with IO::AIO::CWD.
114 - added IO::AIO::memfd_create.
115 - correctly include <sys/uio.h> in the vmsplice test.
116 - reduce codesize by ~7% on amd64 by declaring more functions
117 as noinline.
118 - documentation fixes and updates.
119 - experimental and undocumented preliminary support for synchronous statx.
120
1214.71 Sun Mar 10 13:09:26 CET 2019
122 - due to an error in the linux manpages, the configure tests
123 for readahead, sync_file_range, splice etc. failed. This has been fixed.
124
1254.7 Mon Mar 4 11:28:13 CET 2019
126 - majorly speed up scandir for the very special case of a non-POSIX
127 filesystem that nevertheless reports valid dt_type information.
128 The only known filesystem of this type is currently btrfs, which
129 didn't get it's act together to implement POSIX semantics in all
130 these years, and I am tired of waiting.
131 - add IO::AIO::MCL_ONFAULT for mlockall, add IO::AIO::mlockall.
132 - neither sys/mkdev.h nor sys/sysmacros.h were included, even when they
133 were detected by autoconf.
134
1354.6 Sat Aug 25 21:58:36 CEST 2018
136 - add st_btime, st_btimesec, st_btimensec and st_gen accessors,
137 mostly for bsds which expose birthtime and st_gen members (netbsd, freebsd
138 but only st_gen on openbsd because they compiled their perl without support
139 for birthtimes).
140 - fix madvise and munlock to properly support negative offsets.
141 - allocate fd for the aio_close at boot time, to guarantee it working
142 later, rather than calling abort when it fails. also avoids
143 close-on-exec race issues after module load.
144 - #undef utime on win32, maybe this helps some reports of utime hangs.
145 - minor doc improvements.
146 - minor configure cleanups.
147 - use $Config{perllibs} instead of libs for configure. might help people
148 who didn't install all perl dependencies (might break things as well).
149
1504.54 Tue Aug 14 13:54:48 CEST 2018
151 - include sys/mkdev.h or sys/sysmacros.h if available.
152 - further tweaks to configure invocation for systems requiring --rpath.
153 - no longer rely on custom paths on win32 platforms.
154 - try to work around buggy PAGESIZE macro on solaris.
155
1564.53 Tue Aug 14 11:27:50 CEST 2018
157 - add $Config{libs} to LIBS for configure, to work around systems
158 with broken library dependencies (... openbsd).
159
1604.52 Sun Aug 12 08:09:45 CEST 2018
161 - config.h.in was missing in distribution.
162
1634.51 Sun Aug 12 07:24:14 CEST 2018
164 - complete rework of the autoconf framework: IO::AIO now uses its own
165 config.h, separate from libeio, and tries to test the actual perl
166 environment, not the standard system environment.
167 - provide nanosecond-accracy stat time accessors for both perl and IO::AIO
168 stat functions.
169 - removed non-portable C++ syntax from eio.c.
170 - try to fix readdir tests on cygwin spuriously failing.
171
1724.5 Wed Aug 1 00:23:55 CEST 2018
173 - aio_mtouch touch all pages as requested, not just the first page in most cases.
174 - new function: IO::AIO::mremap, linux-specific mremap, with constants MREMAP_MAYMOVE
175 and MREMAP_FIXED.
176 - add O_ACCMODE.
177 - add (undocumented) MSG_CMSG_CLOEXEC and SOCK_CLOEXEC constants.
178
1794.4 Tue Feb 20 07:54:12 CET 2018
180 - new aio_slurp request.
181 - add (experimental) IO::AIO::eventfd and timerfd* function.
182 - add (experimental) IO::AIO::get_fdlimit and IO::AIO::min_fdlimit.
183 - point out that aio_copy overwrites existing files.
184 - removed filesystem magic number table from aio_statvfs docs as
185 statvfs doesn't actually return this info at all (statfs does).
186 - add a bunch of (mostly linux-specific) constants for use in ioctls
187 (see aio_ioctl docs).
188 - treescan now has a proper manpage and useful --help output.
189 - new option --sync in treescan, to sync everything in a subtree.
190 - changed default for aio_msync flags to MSYNC_SYNC.
191 - document offset/length behaviour of mprotect/madvise.
192 - support linux's renameat2 (via aio_rename2).
193 - add aio_rename2, an aio_rename with flags.
194 - add F_DUPPFD_CLOEXEC, F_OFD_[SG]ETLKW? constants.
195 - add FALLOC_FL_INSERT_RANGE, FALLOC_FL_UNSHARE_RANGE.
196 - (libeio) use posix_close if available.
197 - (libeio) internal close() calls no longer disturb errno.
198 - add IO:AIO::FALLOC_FL_UNSHARE.
199 - update schmorp.h for removal of USE_SOCKETS_AS_HANDLES
200 and better eventfd detection.
201
2024.34 Sun May 1 19:18:24 CEST 2016
203 - def0.h was not properly generated during previous release, causing
204 compile errors on various platforms.
205 - major/minor were accidentally switched (reported by Alexander Lishenyuk).
206 - removed duplicate definition of MAP_HUGETLB, that was found due to
207 a bug in Perl::Tidy (testcase by alaska332@gmail.com).
208 - added (untested!) aio_fcntl, aio_ioctl requests.
209 - (libeio) names set via prctl are truncated to 15 chars + nul, not 16,
210 as manpages-dev originally claimed.
211
2124.33 Mon Jan 18 12:50:10 CET 2016
213 - add IO::AIO::pipe2 function.
214 - added support for FALLOC_FL_COLLAPSE_RANGE and FALLOC_FL_ZERO_RANGE
215 constants.
216 - added support for O_TMPFILE and O_PATH constants.
217 - added support for MAP_FIXED, MAP_GROWSDOWN,MAP_32BIT, MAP_HUGETLB, MAP_STACK
218 consdtants, whether they can be sensibly used or not.
219 - use NO_INIT where applicable.
220 - update libecb.
221 - added stability canary support.
222 - updated linux super magic table to 4.3.3.
223
2244.32 Wed Feb 11 20:32:11 CET 2015
225 - replace off_t by STRLEN where appropriate, should not result in
226 user-visible changes.
227 - update ecb.h for C11 compatibility.
228
2294.31 Tue Jun 3 03:29:27 CEST 2014
230 - work around more 5.20 bugs. backwards compatibility my ass.
231
2324.3 Fri Apr 11 06:22:38 CEST 2014
233 - perl5porters broke Async::Interrupt, BDB, EV, IO::AIO, OpenCL
234 without warning by switching the meaning of USE_SOCKETS_AS_HANDLES
235 in 5.18. What's so attractive about giving a shit about backwards
236 compatibility - I will never understand.
237
2384.2 Sat Jan 25 01:13:14 CET 2014
239 - aio_group could corrupt memory because it didn't restore
240 the stack after req_submit.
241 - be more careful on (e.g. permission) errors in bin/treescan.
242 - work around changes in ExtUtils::MakeMaker.
243 - (libeio) implement aio_realpath for win32.
244 - (xthread) work around compile time bugs in ptw32.
245 - added IO::AIO::pipesize.
246 - (libecb) insignificant update.
247
2484.19 Sun Jan 6 12:47:26 CET 2013
249 - avoid endless loop in fiemap with some XFS files.
250 - in aio_rename and aio_rmdir, specialcase the case of [$wd, "."]
251 and call rename/rmdir instead of renameat/unlinkat.
252
2534.18 Thu Oct 11 07:01:26 CEST 2012
254 - fix unintended xthread_create by intentionalising it :)
255
2564.17 Thu Oct 11 05:19:47 CEST 2012
257 - rename aio_fallocate to aio_allocate, to match documentation.
258 - add list of linux fsid values to aio_statvfs docs.
259 - work around a bug in btrfs' FIEMAP ioctl implementation.
260 - work around AIX bug: statvfs.f_fsid is a struct, not unsigned long
261 as per unix spec.
262
2634.16 Tue Aug 14 05:39:03 CEST 2012
264 - aio_statvfs was wromgly marked for wd emulation, causing
265 it to malfunction for paths.
266 - fix a crash in aio_fiemap, when used on ranges without any
267 extents.
268 - work around linux kernel bug (at least in 3.2): kernel might
269 trash fiemap input arguments.
270 - work around linux kernel bug (at least in 3.2): kernel does not
271 set FIEMAP_EXTENT_LAST on last segment.
272 - work around linux kernel bug (at least in 3.2): kernel silently
273 truncates segment count if a file.
274 - make fh argument of IO::AIO::mmap optional, also add mmap/munmap
275 to quick overview.
276 - splice can corrupt data.
277 - (libeio) remove pread/pwrite emulation.
278 - do not grow mmaped scalars in aio_read.
279 - add FALLOC_FL_PUNCH_HOLE and document fallocate.
280 - provide pread/pwrite for win32, making it link again on native win32.
281
2824.15 Tue Apr 10 06:59:00 CEST 2012
283 - always include linux/types.h for fiemap, for compatibility to
284 ancient systems (Paul Howarth).
285 - experimental support for IO::AIO::splice and ::tee (no aio_...).
286 - provide SEEK_HOLE and SEEK_DATA, if available.
287 - work around (again!) an immensely stupid bug in RHEL, defining
288 autoconf macros in linux system headers (analysed by Paul Howarth).
289
2904.14 Sat Apr 7 02:45:18 CEST 2012
291 - fix stat structure usage on windows, which caused bogus stat results.
292 - (libeio) make readahead emulation behave more like actual readahead by never failing.
293 - new request aio_seek.
294 - new request aio_fiemap.
295 - autogenerate the #ifdef/#define 0 blocks for symbols we export.
296
2974.12 Fri Dec 30 08:51:25 CET 2011
298 - realpath would return a random value if the name was too long,
299 instead of -1.
300 - port to c89.
301
3024.11 Mon Oct 10 00:24:11 CEST 2011
303 - libeio didn't compile on !linux (Paul Howarth).
304
3054.1 Sun Oct 9 10:24:11 CEST 2011
306 - IO::AIO did access uninitialised memory on unsuccessful stats.
307 - (libeio) added syncfs syscall wrapper.
308 - (libeio) set thread name on linux (ps -L/Hcx, top, gdb).
309 - (libeio) support multiple indepenent working directories.
310 - applied speling corrections by Nicholas Bamber.
311 - tune treescan #threads and #outstanding requests a bit.
312 - reduce the number of file descriptors in use at any one time
313 in treescan, to avoid running out of them (and using too much ram).
314 - take advantage of working directoriy abstractions
315 in aio_scandir and treescan.
316 - reduce compiled size by ~10% by not inlining some key functionality.
317 - added --progress switch to treescan.
318
3194.0 Mon Jul 18 05:01:10 CEST 2011
320 - INCOMPATIBLE CHANGE: fork is no longer supported (indeed, it never was),
321 see FORK BEHAVIOUR in manpage for details.
322 - passes testsuite on win32 now and may actually work
323 (activestate 5.10.1 / MSVC6, YMMV).
324 - (libeio) fix a deadlock where a wakeup signal could be missed when
325 a timeout occured at the same time.
326 - (libeio) added realpath.
327 - (libeio) added fallocate.
328 - (libeio) disabling sendfile on darwin unfortunately broke the emulation.
329 - (libeio) do not acquire any locks when forking.
330 - (libeio) use fewer time() syscalls when waiting for new requests.
331
3323.93 Wed Jun 29 23:44:18 CEST 2011
333 - ECB.H WAS MISSING.
334
3353.92 Wed Jun 29 14:45:41 CEST 2011
336 - ecb.h was missing.
337
3383.91 Wed Jun 29 13:24:42 CEST 2011
339 - (libeio) work around a Linux (and likely FreeBSD and other
340 kernels) bug where sendfile would not transfer all the requested
341 bytes on large transfers, using a heuristic.
342 - buggy sendfile caused aio_move/copy to sometimes fail for big
343 files (fortunately it checks that the whole file has been
344 transferred...)
345 - use libecb for higher performance and higher portability.
346 - (libeio) disable sendfile on darwin, it's too broken.
347 - disable fork tests on !linux, as only linux supports mixing
348 pthread and fork in perl.
349 - document the fact that fork doesn't work anymore when using
350 this module, on anything !GNU/Linux.
351 - increase timeout in t/04_fork.t, as too many CPAN-tester setups
352 run on a 0.1MHz cpu. Or so.
353
3543.9 Fri May 27 02:43:47 CEST 2011
355 - (libeio) fix memory corruption in aio_readdirx for the flags
356 combination READDIR_STAT_ORDER | READDIR_DIRS_FIRST.
357 - add lots of newer POSIX and GNU/Linux-specific open
358 flags.
359
3603.8 Sun Mar 27 12:25:33 CEST 2011
361 - use nonstandard but maybe-working-on-bsd fork technique.
362 - support a max_idle value of 0.
363 - support setting of idle timeout value (IO::AIO::idle_timeout).
364
3653.72 Fri Feb 11 04:25:38 CET 2011
366 - use _POSIX_MEMLOCK_RANGE to detect mlock/munlock.
367 - aio_mknod always used a dev_t value of 0.
368 - new treescan option: --grep.
369 - add more S_IF macros, and major/minor/makedev "macros".
370
3713.71 Thu Dec 30 08:18:46 CET 2010
372 - the numerical result value passed to callbacks did not stringify
373 correctly, due to internal reuse and failure to reset the sv flags.
374 - actually test for posix_[mf]advise, as at least uClibc defines
375 _POSIX_ADVISORY_INFO without actually having any of the required
376 funcitonality. ugh.
377
3783.7 Mon Nov 1 23:00:34 CET 2010
379 - implement/add madvise, mmap, munmap, aio_mlockall, munlockall,
380 aio_mlock, munlock, msync and mtouch to @EXPORT_OK.
381 - document the sad state of affairs w.r.t. pthread on many bsds.
382 - do not enable mmap on systems without _POSIX_MAPPED_FILES
383 (openbsd 4.8).
384 - do not leak memory in IO::AIO::mmap when the scalar already
385 had string-data.
386 - add O_RDWR, O_APPEND and O_EXCL symbols and semi-document
387 them.
388 - cache the result IV, for a minor speedup in the common case.
389 - croak when an mmapped-scalar changes location, to detect
390 user-errors better.
391 - fix aio_readlink prototype.
392
3933.65 Wed Mar 31 02:45:05 CEST 2010
394 - actually use PATH_MAX instead of NAME_MAX for readlink, as to not
395 cut off long pathnames in aio_readlink (based on patch by
396 Rasmus Andersson).
397 - a double fork partially killed the event pipe (great testcase
398 by dormando). affects IO::AIO, BDB and Async::Interrupt.
399 - suck steve's dick and rename our symbols to avoid colliding
400 with nonstandard identifier spam on the broken os x pseudo-os.
401 affects IO::AIO and BDB.
402
4033.6 Mon Jan 11 00:43:39 CET 2010
404 - (libeio) more fixes for the freebsd/apple sendfile - broken by
405 manpage standards, but apparently correct accoridng to actual
406 kernel sources.
407 - add IO::AIO::mmap/munmap support.
408 - add IO::AIO::m(un)lockall support.
409 - clean up manpage.
410
4113.5 Thu Jan 7 21:25:04 CET 2010
412 - (liebio) fix freebsd sendfile (Vanilla Hsu).
413 - (libeio) also fix darwin sendfile that suffered from a similar bug.
414 - add aio_statvfs as interface to statvfs/fstatvfs.
415 - work around buggy symlink() on cygwin in the testsuite.
416 - wtf. freebsd-8.0 actually passes the testsuite! I knew
417 they could implement fork and semaphores one day! cheers!
418
4193.4 Sat Jan 2 15:13:04 CET 2010
420 - (libeio) max_poll_time was not properly converted to ticks.
421 - clarify cancel_subs description.
422 - IO::AIO::sendfile did not actually return the return value
423 from the sendfile call.
424 - implement aio_msync, aio_mtouch.
425 - (libeio) tentatively support darwin in sendfile.
426
4273.31 Thu Nov 12 02:14:29 CET 2009
428 - fix result status documentation of aio_copy, aio_move.
429 - speed up object creation considerably by avoiding
430 hash lookups.
431
4323.3 Wed Aug 5 13:52:58 CEST 2009
433 - use common::sense.
434 - use common schmorp.h header.
435 - allow integers (file descriptors) in addition to file handles.
436 - take advantage of linux' eventfd (but it seems slower on smp?).
437 - use poll not select on posix platforms.
438
4393.261 Wed Jul 1 10:11:51 CEST 2009
440 - more 0S X workarounds (patch by Tokuhiro Matsuno).
441
4423.26 Tue Jun 30 09:33:26 CEST 2009
443 - 0S X of course claims to be posix 2008 but lacks posix_fadvise.
444 try to work around this horribly broken OS in a somewhat hackish
445 way. might help other os's too.
446
4473.25 Sat Jun 27 05:18:26 CEST 2009
448 - added IO::AIO::fadvise and IO::AIO::sendfile.
449 - (libeio) replaced quicksort+insertion sort by a tuned radix
450 sort + insertion sort, resulting in comparable runtime (usually
451 faster) to the old version, but without any ill side effects on
452 degenerated (for quicksort) data.
453 - (libeio) correctly sort dirs by inodes if we have perfect type
454 knowledge and DIRS_FIRST is used.
455 - (libeio) internally the wrong DT_* constants were used, but no
456 known system has differing EIO_DT_*/DT_* values, so not an issue.
457 - removed a (harmless) assert that was left over on the code
458 but should not have been.
459 - use more correct types (change IO length from IV to VAL64,
460 which makes a difference on systems without 64 bit perls).
461
4623.23 Sat Jun 13 16:57:58 CEST 2009
463 - fix off-by-one bug in aio_readdir that was introduced in the
464 rushed 3.22 release.
465
4663.22 Sat Jun 13 15:32:40 CEST 2009
467 - speed up readdirx sort algorithm slightly.
468 - bin/treescan was missing from distro tarball.
469
4703.21 Fri Jun 12 18:45:53 CEST 2009
471 - new options --dirs and --files for treescan.
472 - install bin/treescan by default.
473 - (libeio) aio_readdir can now be cancelled while executing.
474 - fix a printf format string for 64 bit systems (could lead
475 to problems on big endian 64 bit systems).
476 - do not use qsort() but our own algorithm: glibc initialises
477 the whole locale and I/O subsystem inside qsort, causing
478 a stack overflow on 32 bit machines. The new sort uses much less
479 stack and is more than twice as fast in typical situations.
480
4813.2 Sun Jun 7 20:30:05 CEST 2009
482 - (libeio) pwrite emulation was even more flawed than intended and did
483 not restore the file offset.
484 - add aio_readdirx, which can return inode and filetype and sort
485 the names in various ways.
486 - unfortunately, utime, chmod, chown on an open file that has just
487 been written can easily block, which caused aio_copy to block the
488 process. no more!
489 - no longer rely on dst path in aio_copy when futime is available.
490
4913.19 Tue Apr 21 22:05:21 CEST 2009
492 - more perl 5.10 workarounds for aio_read and write.
493 - aio_write no longer modifies the sv (if possible).
494 - aio_read now works correctly with magic values.
495
4963.18 Sun Apr 19 21:17:32 CEST 2009
497 - better diagnostics when some aio_* functions get passed an illegal fh.
498 - try to avoid crashes due to incompatible 5.10 API changes. grmbl.
499
5003.17 Thu Nov 20 08:45:36 CET 2008
501 - (libeio) added aio_sync_file_range (untested).
502 - add aio_busy to @IO::AIO::AIO_REQ.
503
5043.16 Wed Oct 22 18:28:01 CEST 2008
505 - use SvREFCNT_inc instead of SvREFCNT_inc_NN in a non-speed critical
506 part to improve portability to perl 5.8 (reported by szymon).
507
5083.15 Mon Oct 13 00:39:55 CEST 2008
509 - automatic removal of feeders was broken.
510 - (libeio) use a more robust method to detect whether a feeder
511 has added something to the group or not.
512
5133.1 Thu Oct 2 13:34:40 CEST 2008
514 - pre-deref the passed callback object, for increased speed
515 and decreased memory usage.
516 - call on_next_submit callback even for aio_group - impact unknown,
517 but seems more correct.
518 - $req->cb now returns the original callback.
519 - (libeio) pass EIO_GROUP/aio_group requests through the queue without
520 requiring a thread switch.
521 - (libeio) status code of aio_futime and aio_utime was always passed 0.
522 - do some other µ-optimisations.
523
5243.07 Sat Aug 2 16:06:13 CEST 2008
525 - do not include LIBS in autoconf tests.
526
5273.06 Tue Jul 15 12:41:32 CEST 2008
528 - move preadwritelock definition before it's first reference,
529 to make it compile again on broken platforms (they still exist)
530 or badly cofngiured perls (redhat...), reported by Rob Bloodgood.
531
5323.05 Thu Jun 19 23:23:52 CEST 2008
533 - work around perl overriding readdir etc. with thread-unsafe
534 (sic!) versions.
535
5363.04 Wed Jun 18 01:35:38 CEST 2008
537 - (libeio) fix eio_mknod, which confused it's arguments.
538 - (libeio) do not use readdir_r, as Ulrich Drepper pointed out that this
539 is stupid.
540 - (libeio) fix eio__readahead prototype, patch by Jost Krieger.
541 - (libeio) fix a bug that could potentially cause IO::AIO
542 not to get initialised properly.
543
5443.03 Thu May 29 05:33:30 CEST 2008
545 - (libeio) correctly call pthread_attr_destroy ().
546 - (libeio) work around broken bsd headers once more.
547 - reduce shared library size again by not including wrappers.
548 - max_outstanding could cause poll to enter a busy-waiting loop.
549 - document the new IO::AIO::poll_cb result value.
550
5513.02 Mon May 12 02:32:02 CEST 2008
552 - fix a memory leak on aio_readlink.
553 - bring back working fchmod.
554 - nop and busy now set result to 0.
555 - set errno to ENOMEM when allocation fails.
556
5573.01 Sun May 11 03:07:03 CEST 2008
558 - (libeio) make it compile on systems without readahead or readdir_r.
559 - (libeio) improve configure check for readahead availability.
560 - do not try to link against -lrt.
561 - use a separate configure script for IO::AIO (not the libeio one).
562
5633.0 Sun May 11 00:57:14 CEST 2008
564 - added bin/treescan to the distribution.
565 - switched to using libeio.
566 - LOTS OF INCOMPATIBLE CHANGES:
567 - remove signal functionality, it is not worth the effort.
568 - max_outstanding no longer returns the previous number of requests.
569 - poll_cb no longer returns number of requests.
570
5712.62 Sat Apr 26 13:59:33 CEST 2008
572 - port to solaris perls configured for old posix
573 (analysed by Jost Krieger).
574 - keep a reference to the perl filehandle object in aio_close,
575 so it doesn't get closed prematurely, leading to ugly races.
576
5772.61 Wed Apr 16 18:45:02 CEST 2008
578 - fix treescan output duplication and improve output ordering.
579 also display files given on the commandline.
580 - use a different algorithm for aio_close that is faster
581 and probably has even lower chances of blocking.
582 - do our own stack memory management for threads - linux
583 allocates outrageous amounts of VM (not so bad unless you
584 use mlockall...), which severely limits the number of threads
585 on 32-bit arches: stack size is the larger of PTHREAD_STACK_MIN
586 and 4096 * sizeof (long) (usually this is 16..64k).
587
5882.6 Sun Mar 30 08:28:11 CEST 2008
589 - added aio_sync.
590 - added aio_pathsync.
591 - fix prototypes of (void) functions.
592
5932.51 Sat Oct 6 16:04:54 CEST 2007
594 - perlio isn't generally threadsafe, so aio_close could not work reliably.
595 aio_close now tries a safe hack that might not be that asynchronous
596 (see the manpage for details).
597 - discard callback return values as to not grow the stack endlessly
598 when poll_cb handles many requests without returning.
599 - minor code cleanups.
600
6012.5 Thu Oct 4 14:49:08 CEST 2007
602 - replaced _fd2fh with faster xs code.
603 - aio_close will now try to do "the right thing" and thus might
604 work sensibly for the very first time.
605
6062.41 Mon Sep 24 21:28:21 CEST 2007
607 - after fork, invest some work to make sure that the poll_fileno
608 stays stable (by dup2'ing the new fd over the old one), to make
609 it easier for programs/libs that don't control their forking
610 behaviour and cannot recreate their watchers.
611
6122.4 Sun Aug 5 18:44:22 CEST 2007
613 - add aio_truncate, aio_chmod, aio_chown, aio_utime (linux
614 successfully demonstrated that you can block on futimes...).
615 - allow undef as fileoffset for aio_read/write and use read/write(2)
616 internally (useful for sockets or O_APPEND handles).
617 - allow undef for length in aio_write.
618 - negative dataoffsets work as expected now in aio_read/aio_write.
619 - use NV instead of UV for 32 bit perls and file offsets, as NVs
620 have a larger range then.
621 - shared code between BDB and IO::AIO.
622 - aio_busy was completely broken. now fixed.
623 - readahead emulation now returns something.
624 - correctly set errno to ENOSYS on unimplemented functions
625 (should never happen, though).
626 - large changes to make it partially compile and run on win32,
627 but win32 lacks too much functionality, and perl overrides way
628 too many functions with crashing versions.
629
6302.33 Tue Jan 23 23:55:41 CET 2007
631 - fix install path (Andreas J. Koenig).
632
6332.32 Mon Jan 22 16:56:23 CET 2007
634 - added aio_rmtree.
635 - wow, aio_mkdir was missing.
636 - aio_load did return undef on error, not -1.
637 - use prefixexp not prefix in autoconf.pm
638 (suggested by ... rt.cpan.org unreachable).
639 - avoid installing autoconf.pm.
640
6412.31 Sat Jan 6 03:46:02 CET 2007
642 - added aio_load.
643
6442.3 Sat Dec 23 05:48:07 CET 2006
645 - fix off-by-one bug in aio_read, causing memory corruption
646 or crashes.
647
6482.21 Fri Dec 22 05:03:38 CET 2006
649 - minor doc updates.
8 - minor cleanups. 650 - minor cleanups.
9 - IO::AIO::poll returns request count. 651 - IO::AIO::poll returns request count.
652 - undocumented and unfinished async-signal-reporting.
10 653
112.2 Tue Oct 31 00:31:00 CET 2006 6542.2 Tue Oct 31 00:31:00 CET 2006
12 - minor doc updates. 655 - minor doc updates.
13 - added aio_readlink. 656 - added aio_readlink.
14 - properly zero-terminate aio_read buffer. 657 - properly zero-terminate aio_read buffer.

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