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Comparing IO-AIO/Changes (file contents):
Revision 1.10 by root, Mon Jul 11 02:53:59 2005 UTC vs.
Revision 1.410 by root, Wed Sep 28 08:24:25 2022 UTC

1Revision history for IO::AIO 1Revision history for IO::AIO
2 2
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: ioprio_get/set
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/
48
49 - another workaround for the low-quality musl libc.
50 - test for umount seperately, as it is more portable.
51 - some low-quality posix attempts (openbsd, osx) declare the availability
52 of fexecve but then don't even bother to implemnent a stub.
53
544.79 Sun 25 Sep 2022 18:25:53 CEST
55 - the autoconf result of the mount check was not used, so it failed to
56 compile on most systems (reported by crackoff@tutanota.com).
57 - work around fedora not having a working C compiler setup by design
58 (reported by Paul Howarth).
59
604.78 Tue 06 Sep 2022 12:54:43 CEST
61 - add IO::AIO::mount and IO::AIO::umount.
62 - add a bunch of symbols from sys/mount.h.
63
644.77 Mon 05 Sep 2022 02:03:38 CEST
65 - add MFD_HUGETLB_2MB and MFD_HUGETLB_1GB constants.
66 - add fexecve.
67 - add lots of missing functions to @EXPORT_OK.
68
694.76 Tue Jul 27 20:45:01 CEST 2021
70 - add autoconf test for siginfo_t, which is, of course, not
71 available on windows (reported by Peter Petky).
72 - disable syscalls on solaris, as perl seems to provide an
73 incompatible syscall prototype that clashes with sys/syscall.h.
74 - add MAP_FIXED_NOREPLACE, MAP_SHARED_VALIDATE, MAP_SYNC and
75 MAP_UNINITIALIZED.
76
774.75 Wed Dec 30 08:44:55 CET 2020
78 - removed leftover debug output from treescan.
79 - added (but not documented) waitid-P_*, FSPICK_*, FSOPEN_*,
80 FSCONFIG_*, MOUNT_ATTR_* constants.
81
824.74 Tue Dec 29 16:19:28 CET 2020
83 - added pidfd_open, pidfd_getfd and pidfd_send_signal functions.
84 - rework bin/treescan to avoid recursion. This fixes two bugs
85 where a deep directory traversal or a lot of command line
86 arguments could cause it to crash.
87 - added (but not documented) open_tree, AT_* and move_mount flags.
88 - support defining syscall numbers in gendef0.
89
904.73 Fri Dec 4 02:08:37 CET 2020
91 - def0.h was not uptodate, running into musl problems
92 (reported by B Fraser).
93 - IO::AIO::splice and IO::AIO::tee didn't properly return
94 64 bit values.
95 - added IO::AIO::accept4.
96 - add various F_SEAL related fcntl constants.
97 - removed experimental marker for fdlimit functions.
98 - fiemap now includes the last segment even if it overflows
99 the end offset, which is arguably the correct behaviour.
100
1014.72 Wed Apr 3 04:56:03 CEST 2019
102 - (libeio) if fd 0 is available do not use it for aio_wd, as it
103 collides with IO::AIO::CWD.
104 - added IO::AIO::memfd_create.
105 - correctly include <sys/uio.h> in the vmsplice test.
106 - reduce codesize by ~7% on amd64 by declaring more functions
107 as noinline.
108 - documentation fixes and updates.
109 - experimental and undocumented preliminary support for synchronous statx.
110
1114.71 Sun Mar 10 13:09:26 CET 2019
112 - due to an error in the linux manpages, the configure tests
113 for readahead, sync_file_range, splice etc. failed. This has been fixed.
114
1154.7 Mon Mar 4 11:28:13 CET 2019
116 - majorly speed up scandir for the very special case of a non-POSIX
117 filesystem that nevertheless reports valid dt_type information.
118 The only known filesystem of this type is currently btrfs, which
119 didn't get it's act together to implement POSIX semantics in all
120 these years, and I am tired of waiting.
121 - add IO::AIO::MCL_ONFAULT for mlockall, add IO::AIO::mlockall.
122 - neither sys/mkdev.h nor sys/sysmacros.h were included, even when they
123 were detected by autoconf.
124
1254.6 Sat Aug 25 21:58:36 CEST 2018
126 - add st_btime, st_btimesec, st_btimensec and st_gen accessors,
127 mostly for bsds which expose birthtime and st_gen members (netbsd, freebsd
128 but only st_gen on openbsd because they compiled their perl without support
129 for birthtimes).
130 - fix madvise and munlock to properly support negative offsets.
131 - allocate fd for the aio_close at boot time, to guarantee it working
132 later, rather than calling abort when it fails. also avoids
133 close-on-exec race issues after module load.
134 - #undef utime on win32, maybe this helps some reports of utime hangs.
135 - minor doc improvements.
136 - minor configure cleanups.
137 - use $Config{perllibs} instead of libs for configure. might help people
138 who didn't install all perl dependencies (might break things as well).
139
1404.54 Tue Aug 14 13:54:48 CEST 2018
141 - include sys/mkdev.h or sys/sysmacros.h if available.
142 - further tweaks to configure invocation for systems requiring --rpath.
143 - no longer rely on custom paths on win32 platforms.
144 - try to work around buggy PAGESIZE macro on solaris.
145
1464.53 Tue Aug 14 11:27:50 CEST 2018
147 - add $Config{libs} to LIBS for configure, to work around systems
148 with broken library dependencies (... openbsd).
149
1504.52 Sun Aug 12 08:09:45 CEST 2018
151 - config.h.in was missing in distribution.
152
1534.51 Sun Aug 12 07:24:14 CEST 2018
154 - complete rework of the autoconf framework: IO::AIO now uses its own
155 config.h, separate from libeio, and tries to test the actual perl
156 environment, not the standard system environment.
157 - provide nanosecond-accracy stat time accessors for both perl and IO::AIO
158 stat functions.
159 - removed non-portable C++ syntax from eio.c.
160 - try to fix readdir tests on cygwin spuriously failing.
161
1624.5 Wed Aug 1 00:23:55 CEST 2018
163 - aio_mtouch touch all pages as requested, not just the first page in most cases.
164 - new function: IO::AIO::mremap, linux-specific mremap, with constants MREMAP_MAYMOVE
165 and MREMAP_FIXED.
166 - add O_ACCMODE.
167 - add (undocumented) MSG_CMSG_CLOEXEC and SOCK_CLOEXEC constants.
168
1694.4 Tue Feb 20 07:54:12 CET 2018
170 - new aio_slurp request.
171 - add (experimental) IO::AIO::eventfd and timerfd* function.
172 - add (experimental) IO::AIO::get_fdlimit and IO::AIO::min_fdlimit.
173 - point out that aio_copy overwrites existing files.
174 - removed filesystem magic number table from aio_statvfs docs as
175 statvfs doesn't actually return this info at all (statfs does).
176 - add a bunch of (mostly linux-specific) constants for use in ioctls
177 (see aio_ioctl docs).
178 - treescan now has a proper manpage and useful --help output.
179 - new option --sync in treescan, to sync everything in a subtree.
180 - changed default for aio_msync flags to MSYNC_SYNC.
181 - document offset/length behaviour of mprotect/madvise.
182 - support linux's renameat2 (via aio_rename2).
183 - add aio_rename2, an aio_rename with flags.
184 - add F_DUPPFD_CLOEXEC, F_OFD_[SG]ETLKW? constants.
185 - add FALLOC_FL_INSERT_RANGE, FALLOC_FL_UNSHARE_RANGE.
186 - (libeio) use posix_close if available.
187 - (libeio) internal close() calls no longer disturb errno.
188 - add IO:AIO::FALLOC_FL_UNSHARE.
189 - update schmorp.h for removal of USE_SOCKETS_AS_HANDLES
190 and better eventfd detection.
191
1924.34 Sun May 1 19:18:24 CEST 2016
193 - def0.h was not properly generated during previous release, causing
194 compile errors on various platforms.
195 - major/minor were accidentally switched (reported by Alexander Lishenyuk).
196 - removed duplicate definition of MAP_HUGETLB, that was found due to
197 a bug in Perl::Tidy (testcase by alaska332@gmail.com).
198 - added (untested!) aio_fcntl, aio_ioctl requests.
199 - (libeio) names set via prctl are truncated to 15 chars + nul, not 16,
200 as manpages-dev originally claimed.
201
2024.33 Mon Jan 18 12:50:10 CET 2016
203 - add IO::AIO::pipe2 function.
204 - added support for FALLOC_FL_COLLAPSE_RANGE and FALLOC_FL_ZERO_RANGE
205 constants.
206 - added support for O_TMPFILE and O_PATH constants.
207 - added support for MAP_FIXED, MAP_GROWSDOWN,MAP_32BIT, MAP_HUGETLB, MAP_STACK
208 consdtants, whether they can be sensibly used or not.
209 - use NO_INIT where applicable.
210 - update libecb.
211 - added stability canary support.
212 - updated linux super magic table to 4.3.3.
213
2144.32 Wed Feb 11 20:32:11 CET 2015
215 - replace off_t by STRLEN where appropriate, should not result in
216 user-visible changes.
217 - update ecb.h for C11 compatibility.
218
2194.31 Tue Jun 3 03:29:27 CEST 2014
220 - work around more 5.20 bugs. backwards compatibility my ass.
221
2224.3 Fri Apr 11 06:22:38 CEST 2014
223 - perl5porters broke Async::Interrupt, BDB, EV, IO::AIO, OpenCL
224 without warning by switching the meaning of USE_SOCKETS_AS_HANDLES
225 in 5.18. What's so attractive about giving a shit about backwards
226 compatibility - I will never understand.
227
2284.2 Sat Jan 25 01:13:14 CET 2014
229 - aio_group could corrupt memory because it didn't restore
230 the stack after req_submit.
231 - be more careful on (e.g. permission) errors in bin/treescan.
232 - work around changes in ExtUtils::MakeMaker.
233 - (libeio) implement aio_realpath for win32.
234 - (xthread) work around compile time bugs in ptw32.
235 - added IO::AIO::pipesize.
236 - (libecb) insignificant update.
237
2384.19 Sun Jan 6 12:47:26 CET 2013
239 - avoid endless loop in fiemap with some XFS files.
240 - in aio_rename and aio_rmdir, specialcase the case of [$wd, "."]
241 and call rename/rmdir instead of renameat/unlinkat.
242
2434.18 Thu Oct 11 07:01:26 CEST 2012
244 - fix unintended xthread_create by intentionalising it :)
245
2464.17 Thu Oct 11 05:19:47 CEST 2012
247 - rename aio_fallocate to aio_allocate, to match documentation.
248 - add list of linux fsid values to aio_statvfs docs.
249 - work around a bug in btrfs' FIEMAP ioctl implementation.
250 - work around AIX bug: statvfs.f_fsid is a struct, not unsigned long
251 as per unix spec.
252
2534.16 Tue Aug 14 05:39:03 CEST 2012
254 - aio_statvfs was wromgly marked for wd emulation, causing
255 it to malfunction for paths.
256 - fix a crash in aio_fiemap, when used on ranges without any
257 extents.
258 - work around linux kernel bug (at least in 3.2): kernel might
259 trash fiemap input arguments.
260 - work around linux kernel bug (at least in 3.2): kernel does not
261 set FIEMAP_EXTENT_LAST on last segment.
262 - work around linux kernel bug (at least in 3.2): kernel silently
263 truncates segment count if a file.
264 - make fh argument of IO::AIO::mmap optional, also add mmap/munmap
265 to quick overview.
266 - splice can corrupt data.
267 - (libeio) remove pread/pwrite emulation.
268 - do not grow mmaped scalars in aio_read.
269 - add FALLOC_FL_PUNCH_HOLE and document fallocate.
270 - provide pread/pwrite for win32, making it link again on native win32.
271
2724.15 Tue Apr 10 06:59:00 CEST 2012
273 - always include linux/types.h for fiemap, for compatibility to
274 ancient systems (Paul Howarth).
275 - experimental support for IO::AIO::splice and ::tee (no aio_...).
276 - provide SEEK_HOLE and SEEK_DATA, if available.
277 - work around (again!) an immensely stupid bug in RHEL, defining
278 autoconf macros in linux system headers (analysed by Paul Howarth).
279
2804.14 Sat Apr 7 02:45:18 CEST 2012
281 - fix stat structure usage on windows, which caused bogus stat results.
282 - (libeio) make readahead emulation behave more like actual readahead by never failing.
283 - new request aio_seek.
284 - new request aio_fiemap.
285 - autogenerate the #ifdef/#define 0 blocks for symbols we export.
286
2874.12 Fri Dec 30 08:51:25 CET 2011
288 - realpath would return a random value if the name was too long,
289 instead of -1.
290 - port to c89.
291
2924.11 Mon Oct 10 00:24:11 CEST 2011
293 - libeio didn't compile on !linux (Paul Howarth).
294
2954.1 Sun Oct 9 10:24:11 CEST 2011
296 - IO::AIO did access uninitialised memory on unsuccessful stats.
297 - (libeio) added syncfs syscall wrapper.
298 - (libeio) set thread name on linux (ps -L/Hcx, top, gdb).
299 - (libeio) support multiple indepenent working directories.
300 - applied speling corrections by Nicholas Bamber.
301 - tune treescan #threads and #outstanding requests a bit.
302 - reduce the number of file descriptors in use at any one time
303 in treescan, to avoid running out of them (and using too much ram).
304 - take advantage of working directoriy abstractions
305 in aio_scandir and treescan.
306 - reduce compiled size by ~10% by not inlining some key functionality.
307 - added --progress switch to treescan.
308
3094.0 Mon Jul 18 05:01:10 CEST 2011
310 - INCOMPATIBLE CHANGE: fork is no longer supported (indeed, it never was),
311 see FORK BEHAVIOUR in manpage for details.
312 - passes testsuite on win32 now and may actually work
313 (activestate 5.10.1 / MSVC6, YMMV).
314 - (libeio) fix a deadlock where a wakeup signal could be missed when
315 a timeout occured at the same time.
316 - (libeio) added realpath.
317 - (libeio) added fallocate.
318 - (libeio) disabling sendfile on darwin unfortunately broke the emulation.
319 - (libeio) do not acquire any locks when forking.
320 - (libeio) use fewer time() syscalls when waiting for new requests.
321
3223.93 Wed Jun 29 23:44:18 CEST 2011
323 - ECB.H WAS MISSING.
324
3253.92 Wed Jun 29 14:45:41 CEST 2011
326 - ecb.h was missing.
327
3283.91 Wed Jun 29 13:24:42 CEST 2011
329 - (libeio) work around a Linux (and likely FreeBSD and other
330 kernels) bug where sendfile would not transfer all the requested
331 bytes on large transfers, using a heuristic.
332 - buggy sendfile caused aio_move/copy to sometimes fail for big
333 files (fortunately it checks that the whole file has been
334 transferred...)
335 - use libecb for higher performance and higher portability.
336 - (libeio) disable sendfile on darwin, it's too broken.
337 - disable fork tests on !linux, as only linux supports mixing
338 pthread and fork in perl.
339 - document the fact that fork doesn't work anymore when using
340 this module, on anything !GNU/Linux.
341 - increase timeout in t/04_fork.t, as too many CPAN-tester setups
342 run on a 0.1MHz cpu. Or so.
343
3443.9 Fri May 27 02:43:47 CEST 2011
345 - (libeio) fix memory corruption in aio_readdirx for the flags
346 combination READDIR_STAT_ORDER | READDIR_DIRS_FIRST.
347 - add lots of newer POSIX and GNU/Linux-specific open
348 flags.
349
3503.8 Sun Mar 27 12:25:33 CEST 2011
351 - use nonstandard but maybe-working-on-bsd fork technique.
352 - support a max_idle value of 0.
353 - support setting of idle timeout value (IO::AIO::idle_timeout).
354
3553.72 Fri Feb 11 04:25:38 CET 2011
356 - use _POSIX_MEMLOCK_RANGE to detect mlock/munlock.
357 - aio_mknod always used a dev_t value of 0.
358 - new treescan option: --grep.
359 - add more S_IF macros, and major/minor/makedev "macros".
360
3613.71 Thu Dec 30 08:18:46 CET 2010
362 - the numerical result value passed to callbacks did not stringify
363 correctly, due to internal reuse and failure to reset the sv flags.
364 - actually test for posix_[mf]advise, as at least uClibc defines
365 _POSIX_ADVISORY_INFO without actually having any of the required
366 funcitonality. ugh.
367
3683.7 Mon Nov 1 23:00:34 CET 2010
369 - implement/add madvise, mmap, munmap, aio_mlockall, munlockall,
370 aio_mlock, munlock, msync and mtouch to @EXPORT_OK.
371 - document the sad state of affairs w.r.t. pthread on many bsds.
372 - do not enable mmap on systems without _POSIX_MAPPED_FILES
373 (openbsd 4.8).
374 - do not leak memory in IO::AIO::mmap when the scalar already
375 had string-data.
376 - add O_RDWR, O_APPEND and O_EXCL symbols and semi-document
377 them.
378 - cache the result IV, for a minor speedup in the common case.
379 - croak when an mmapped-scalar changes location, to detect
380 user-errors better.
381 - fix aio_readlink prototype.
382
3833.65 Wed Mar 31 02:45:05 CEST 2010
384 - actually use PATH_MAX instead of NAME_MAX for readlink, as to not
385 cut off long pathnames in aio_readlink (based on patch by
386 Rasmus Andersson).
387 - a double fork partially killed the event pipe (great testcase
388 by dormando). affects IO::AIO, BDB and Async::Interrupt.
389 - suck steve's dick and rename our symbols to avoid colliding
390 with nonstandard identifier spam on the broken os x pseudo-os.
391 affects IO::AIO and BDB.
392
3933.6 Mon Jan 11 00:43:39 CET 2010
394 - (libeio) more fixes for the freebsd/apple sendfile - broken by
395 manpage standards, but apparently correct accoridng to actual
396 kernel sources.
397 - add IO::AIO::mmap/munmap support.
398 - add IO::AIO::m(un)lockall support.
399 - clean up manpage.
400
4013.5 Thu Jan 7 21:25:04 CET 2010
402 - (liebio) fix freebsd sendfile (Vanilla Hsu).
403 - (libeio) also fix darwin sendfile that suffered from a similar bug.
404 - add aio_statvfs as interface to statvfs/fstatvfs.
405 - work around buggy symlink() on cygwin in the testsuite.
406 - wtf. freebsd-8.0 actually passes the testsuite! I knew
407 they could implement fork and semaphores one day! cheers!
408
4093.4 Sat Jan 2 15:13:04 CET 2010
410 - (libeio) max_poll_time was not properly converted to ticks.
411 - clarify cancel_subs description.
412 - IO::AIO::sendfile did not actually return the return value
413 from the sendfile call.
414 - implement aio_msync, aio_mtouch.
415 - (libeio) tentatively support darwin in sendfile.
416
4173.31 Thu Nov 12 02:14:29 CET 2009
418 - fix result status documentation of aio_copy, aio_move.
419 - speed up object creation considerably by avoiding
420 hash lookups.
421
4223.3 Wed Aug 5 13:52:58 CEST 2009
423 - use common::sense.
424 - use common schmorp.h header.
425 - allow integers (file descriptors) in addition to file handles.
426 - take advantage of linux' eventfd (but it seems slower on smp?).
427 - use poll not select on posix platforms.
428
4293.261 Wed Jul 1 10:11:51 CEST 2009
430 - more 0S X workarounds (patch by Tokuhiro Matsuno).
431
4323.26 Tue Jun 30 09:33:26 CEST 2009
433 - 0S X of course claims to be posix 2008 but lacks posix_fadvise.
434 try to work around this horribly broken OS in a somewhat hackish
435 way. might help other os's too.
436
4373.25 Sat Jun 27 05:18:26 CEST 2009
438 - added IO::AIO::fadvise and IO::AIO::sendfile.
439 - (libeio) replaced quicksort+insertion sort by a tuned radix
440 sort + insertion sort, resulting in comparable runtime (usually
441 faster) to the old version, but without any ill side effects on
442 degenerated (for quicksort) data.
443 - (libeio) correctly sort dirs by inodes if we have perfect type
444 knowledge and DIRS_FIRST is used.
445 - (libeio) internally the wrong DT_* constants were used, but no
446 known system has differing EIO_DT_*/DT_* values, so not an issue.
447 - removed a (harmless) assert that was left over on the code
448 but should not have been.
449 - use more correct types (change IO length from IV to VAL64,
450 which makes a difference on systems without 64 bit perls).
451
4523.23 Sat Jun 13 16:57:58 CEST 2009
453 - fix off-by-one bug in aio_readdir that was introduced in the
454 rushed 3.22 release.
455
4563.22 Sat Jun 13 15:32:40 CEST 2009
457 - speed up readdirx sort algorithm slightly.
458 - bin/treescan was missing from distro tarball.
459
4603.21 Fri Jun 12 18:45:53 CEST 2009
461 - new options --dirs and --files for treescan.
462 - install bin/treescan by default.
463 - (libeio) aio_readdir can now be cancelled while executing.
464 - fix a printf format string for 64 bit systems (could lead
465 to problems on big endian 64 bit systems).
466 - do not use qsort() but our own algorithm: glibc initialises
467 the whole locale and I/O subsystem inside qsort, causing
468 a stack overflow on 32 bit machines. The new sort uses much less
469 stack and is more than twice as fast in typical situations.
470
4713.2 Sun Jun 7 20:30:05 CEST 2009
472 - (libeio) pwrite emulation was even more flawed than intended and did
473 not restore the file offset.
474 - add aio_readdirx, which can return inode and filetype and sort
475 the names in various ways.
476 - unfortunately, utime, chmod, chown on an open file that has just
477 been written can easily block, which caused aio_copy to block the
478 process. no more!
479 - no longer rely on dst path in aio_copy when futime is available.
480
4813.19 Tue Apr 21 22:05:21 CEST 2009
482 - more perl 5.10 workarounds for aio_read and write.
483 - aio_write no longer modifies the sv (if possible).
484 - aio_read now works correctly with magic values.
485
4863.18 Sun Apr 19 21:17:32 CEST 2009
487 - better diagnostics when some aio_* functions get passed an illegal fh.
488 - try to avoid crashes due to incompatible 5.10 API changes. grmbl.
489
4903.17 Thu Nov 20 08:45:36 CET 2008
491 - (libeio) added aio_sync_file_range (untested).
492 - add aio_busy to @IO::AIO::AIO_REQ.
493
4943.16 Wed Oct 22 18:28:01 CEST 2008
495 - use SvREFCNT_inc instead of SvREFCNT_inc_NN in a non-speed critical
496 part to improve portability to perl 5.8 (reported by szymon).
497
4983.15 Mon Oct 13 00:39:55 CEST 2008
499 - automatic removal of feeders was broken.
500 - (libeio) use a more robust method to detect whether a feeder
501 has added something to the group or not.
502
5033.1 Thu Oct 2 13:34:40 CEST 2008
504 - pre-deref the passed callback object, for increased speed
505 and decreased memory usage.
506 - call on_next_submit callback even for aio_group - impact unknown,
507 but seems more correct.
508 - $req->cb now returns the original callback.
509 - (libeio) pass EIO_GROUP/aio_group requests through the queue without
510 requiring a thread switch.
511 - (libeio) status code of aio_futime and aio_utime was always passed 0.
512 - do some other ยต-optimisations.
513
5143.07 Sat Aug 2 16:06:13 CEST 2008
515 - do not include LIBS in autoconf tests.
516
5173.06 Tue Jul 15 12:41:32 CEST 2008
518 - move preadwritelock definition before it's first reference,
519 to make it compile again on broken platforms (they still exist)
520 or badly cofngiured perls (redhat...), reported by Rob Bloodgood.
521
5223.05 Thu Jun 19 23:23:52 CEST 2008
523 - work around perl overriding readdir etc. with thread-unsafe
524 (sic!) versions.
525
5263.04 Wed Jun 18 01:35:38 CEST 2008
527 - (libeio) fix eio_mknod, which confused it's arguments.
528 - (libeio) do not use readdir_r, as Ulrich Drepper pointed out that this
529 is stupid.
530 - (libeio) fix eio__readahead prototype, patch by Jost Krieger.
531 - (libeio) fix a bug that could potentially cause IO::AIO
532 not to get initialised properly.
533
5343.03 Thu May 29 05:33:30 CEST 2008
535 - (libeio) correctly call pthread_attr_destroy ().
536 - (libeio) work around broken bsd headers once more.
537 - reduce shared library size again by not including wrappers.
538 - max_outstanding could cause poll to enter a busy-waiting loop.
539 - document the new IO::AIO::poll_cb result value.
540
5413.02 Mon May 12 02:32:02 CEST 2008
542 - fix a memory leak on aio_readlink.
543 - bring back working fchmod.
544 - nop and busy now set result to 0.
545 - set errno to ENOMEM when allocation fails.
546
5473.01 Sun May 11 03:07:03 CEST 2008
548 - (libeio) make it compile on systems without readahead or readdir_r.
549 - (libeio) improve configure check for readahead availability.
550 - do not try to link against -lrt.
551 - use a separate configure script for IO::AIO (not the libeio one).
552
5533.0 Sun May 11 00:57:14 CEST 2008
554 - added bin/treescan to the distribution.
555 - switched to using libeio.
556 - LOTS OF INCOMPATIBLE CHANGES:
557 - remove signal functionality, it is not worth the effort.
558 - max_outstanding no longer returns the previous number of requests.
559 - poll_cb no longer returns number of requests.
560
5612.62 Sat Apr 26 13:59:33 CEST 2008
562 - port to solaris perls configured for old posix
563 (analysed by Jost Krieger).
564 - keep a reference to the perl filehandle object in aio_close,
565 so it doesn't get closed prematurely, leading to ugly races.
566
5672.61 Wed Apr 16 18:45:02 CEST 2008
568 - fix treescan output duplication and improve output ordering.
569 also display files given on the commandline.
570 - use a different algorithm for aio_close that is faster
571 and probably has even lower chances of blocking.
572 - do our own stack memory management for threads - linux
573 allocates outrageous amounts of VM (not so bad unless you
574 use mlockall...), which severely limits the number of threads
575 on 32-bit arches: stack size is the larger of PTHREAD_STACK_MIN
576 and 4096 * sizeof (long) (usually this is 16..64k).
577
5782.6 Sun Mar 30 08:28:11 CEST 2008
579 - added aio_sync.
580 - added aio_pathsync.
581 - fix prototypes of (void) functions.
582
5832.51 Sat Oct 6 16:04:54 CEST 2007
584 - perlio isn't generally threadsafe, so aio_close could not work reliably.
585 aio_close now tries a safe hack that might not be that asynchronous
586 (see the manpage for details).
587 - discard callback return values as to not grow the stack endlessly
588 when poll_cb handles many requests without returning.
589 - minor code cleanups.
590
5912.5 Thu Oct 4 14:49:08 CEST 2007
592 - replaced _fd2fh with faster xs code.
593 - aio_close will now try to do "the right thing" and thus might
594 work sensibly for the very first time.
595
5962.41 Mon Sep 24 21:28:21 CEST 2007
597 - after fork, invest some work to make sure that the poll_fileno
598 stays stable (by dup2'ing the new fd over the old one), to make
599 it easier for programs/libs that don't control their forking
600 behaviour and cannot recreate their watchers.
601
6022.4 Sun Aug 5 18:44:22 CEST 2007
603 - add aio_truncate, aio_chmod, aio_chown, aio_utime (linux
604 successfully demonstrated that you can block on futimes...).
605 - allow undef as fileoffset for aio_read/write and use read/write(2)
606 internally (useful for sockets or O_APPEND handles).
607 - allow undef for length in aio_write.
608 - negative dataoffsets work as expected now in aio_read/aio_write.
609 - use NV instead of UV for 32 bit perls and file offsets, as NVs
610 have a larger range then.
611 - shared code between BDB and IO::AIO.
612 - aio_busy was completely broken. now fixed.
613 - readahead emulation now returns something.
614 - correctly set errno to ENOSYS on unimplemented functions
615 (should never happen, though).
616 - large changes to make it partially compile and run on win32,
617 but win32 lacks too much functionality, and perl overrides way
618 too many functions with crashing versions.
619
6202.33 Tue Jan 23 23:55:41 CET 2007
621 - fix install path (Andreas J. Koenig).
622
6232.32 Mon Jan 22 16:56:23 CET 2007
624 - added aio_rmtree.
625 - wow, aio_mkdir was missing.
626 - aio_load did return undef on error, not -1.
627 - use prefixexp not prefix in autoconf.pm
628 (suggested by ... rt.cpan.org unreachable).
629 - avoid installing autoconf.pm.
630
6312.31 Sat Jan 6 03:46:02 CET 2007
632 - added aio_load.
633
6342.3 Sat Dec 23 05:48:07 CET 2006
635 - fix off-by-one bug in aio_read, causing memory corruption
636 or crashes.
637
6382.21 Fri Dec 22 05:03:38 CET 2006
639 - minor doc updates.
640 - minor cleanups.
641 - IO::AIO::poll returns request count.
642 - undocumented and unfinished async-signal-reporting.
643
6442.2 Tue Oct 31 00:31:00 CET 2006
645 - minor doc updates.
646 - added aio_readlink.
647 - properly zero-terminate aio_read buffer.
648 - fix aio_read/write with nonzero dataoffset.
649 - reduced size of aio request structure.
650 - better diagnostics when pathnames etc. are not byte-encoded;
651 do not leak request in that case, either.
652
6532.1 Sun Oct 29 02:01:57 CET 2006
654 - INCOMPATIBLE CHANGE: replace IO::AIO::poll_some by
655 IO::AIO::max_poll_reqs and IO::AIO::max_poll_time.
656 - fix a bug in aio_move where it would fail everytime
657 it would have to copy files manually.
658 - doc updates.
659 - start threads only on (very low) demand.
660 - end superfluous threads automatically after 10s idling.
661 - add IO::AIO::max_idle to control this.
662 - some tuning applied to random places.
663 - add aio_mknod.
664
6652.0 Thu Oct 26 18:27:58 CEST 2006
666 - minor incompatibility: max_outstanding semantics have changed.
667 - major rewrite, consider all functionality EXPERIMENTAL.
668 - aio requests can be cancelled.
669 - callbacks can be (re-)set later.
670 - aio requests can choose between 9 priorities.
671 - add aio_group: aio requests can be grouped
672 into composite requests.
673 - generator interface for groups.
674 - add IO::AIO::poll_some.
675 - major documentation improvements.
676 - very minor bugfixes.
677 - add aio_nop for dummy requests.
678 - add aio_busy mainly for benchmarking and debugging.
679 - use "fast" mutexes on linux.
680 - use dynamic (and larger) buffers instead of
681 putting them onto the stack.
682 - optimise x86 and amd64 a bit.
683 - better error checking when ENOMEM.
684 - hopefully fix mem and dirp leaks on fork.
685 - warn about broken perl malloc.
686 - compiles on cygwin (but pread is broken on cygwin
687 which is not detected by autoconf, so you have to
688 edit autoconf/config.h yourself to enable emulation).
689
6901.8 Sat Jun 24 22:20:44 CEST 2006
691 - add and/or document aio_rename, aio_link, aio_symlink and aio_move.
692
6931.73 Wed Mar 1 22:49:32 CET 2006
694 - codename "jost"
695 - AIX/Solaris(?) aren't being helpful again, hardcode a value
696 for NAME_MAX and drive with your eyes closed (reported by
697 wcooley@nakedape.cc).
698
6991.72 Thu Feb 2 00:40:44 CET 2006
700 - another minor bug in aio_scandir, again, the callback was called
701 twice when the directory can't be stat'ed.
702
7031.71 Mon Dec 26 20:20:03 CET 2005
704 - grr, another minor bug in aio_scandir, this time resulting
705 in a runtime error.
706
7071.7 Mon Dec 26 19:29:48 CET 2005
708 - aio_scandir errornously called callback twice in some cases.
709 - added AnyEvent example.
710
7111.61 Wed Sep 7 19:40:42 CEST 2005
712 - no longer include $Config{libs}, as distros include too much
713 garbage in there that is not installed on typical systems
714 (for example, debian links perl against -lgdbm and many more
715 libraries despite perl not needing it, slowing down startup and
716 wasting memory).
717
7181.6 Tue Aug 30 17:44:44 CEST 2005
719 - added aio_readdir, aio_scandir.
720 - added aio_sendfile, including sendfile emulation when sendfile
721 isn't available. Linux, FreeBSD and HP-UX might work (sendfilev
722 support is unavailable on my solaris 8 machine, but preliminary
723 code is there. What's lacking is configury stuff and testing...).
724
7251.5 Sat Aug 20 02:32:19 CEST 2005
726 - create the aio threads on demand only (good after forking).
727 - somebody nagged about C89 compatibility, so this release should
728 be C89 compatible, but no guarantees for future ones.
729 - abort when the configure script fails.
730
7311.4 Wed Aug 17 08:07:27 CEST 2005
732 - forgot to recreate the pipe after forking, this could cause
733 deadlocks.
734
7351.3 Wed Aug 17 07:25:54 CEST 2005
736 - properly propagate exceptions from callbacks, instead of silently
737 eating them.
738 - use a different fork algorithm that avoids recursive callback
739 invocations and reduces fork latency in busy processes.
740 - fix a bug where the buffer scalar in aio_read got assigned the wrong
741 length after reading.
742 - fix a bug where the child would process some outstanding requests
743 from the parent.
744 - make a copy of the callback scalar, to avoid some very uncommon
745 (but valid) usages where the callback scalar changes.
746 - the callback was never freed in aio_read/aio_write.
747 - aio_read/aio_write will now set the readonly flag on the data
748 scalar for better error reporting.
749
7501.2 Wed Aug 17 01:22:58 CEST 2005
751 - verified on cygwin, linux/amd64+ia32+alpha, solaris.
752 - use SvPVbyte for filenames now. You *need* to encode your strings to
753 the external filename encoding first.
754 - fix the bug where filehandles could leak (again).
755 - clarify freebsd situation: make it work and tell me how, or go away
756 with your underdocumented, broken and outdated OS.
757 - fork'ing should now be officially supported (where linux and
758 posix contradict each other, I followed posix).
759 - only call read() once per poll, not twice (speedup).
760 - new functions: aio_rmdir, aio_symlink.
761 - force callback arguments to be undef or a reference, for better
762 error catching.
763
7641.1 Sun Aug 7 05:27:23 CEST 2005
765 - added configure script to detect availability of some calls.
766 (imperfect, as we cannot detect things like -lrt due to missing
767 feedback yet).
768 - emulate fdatasync via fsync, pread/pwrite via unsafe read/write
769 and readahead via manual reading on platforms lacking those.
770 - ported t/03_errors.t+framework by Brad Fitzpatrick
771 from Linux::AIO.
772 - removed XOPEN_SOURCE because stupid solaris 9 doesn't
773 compile with it enabled. Probably breaks others. Oh well.
774 - try to be more careful with errno on non-threaded perls.
775 - cygwins perl insisted on a matching open mode when morphing
776 the fd to an fh.
777 - convert sv's to "byte" encoding in aio_read/aio_write. Might
778 do that for pathnames, too, in the future, so make sure you
779 properly encode your pathnames.
780
7811.0 Fri Jul 22 10:43:30 CEST 2005
782 - aio_open did not reliably deliver (open) filehandles.
783 - all aio_*-functions keep a reference to the filehandle so
784 it doesn't go away while the aio requests is working on it.
785 - disable warnings in AIO.pm.
786
7870.9 Wed Jul 20 23:55:04 CEST 2005
788 - allow recursive calls to poll_cb, use less locking calls, too.
789 - fix the Gtk2-example in the SYNOPSIS.
790 - use pread/pwrite not pread64/pwrite64. this was simply a leftover
791 from Linux::AIO.
792 (found by compiling on cygwin. Unfortunately, cygwin declares but
793 does not implement pread/pwrite).
794 - only include <sys/syscall.h> on linux.
795
7960.5 Tue Jul 12 13:03:09 CEST 2005
797 - removed #include <endian.h>, it's not portable, and we don't
798 need it anyway.
799 - link against -lrt, as it might contain goodies such as fdatasync,
800 and often aio_read, which we do not use yet, but it shouldn't hurt.
801
8020.4 Mon Jul 11 05:28:25 CEST 2005
3 - added IO::AIO::flush, IO::AIO::poll. 803 - added IO::AIO::flush, IO::AIO::poll.
4 - make callback argument optional for all calls. 804 - make callback argument optional for all calls.
5 805
60.3 Mon Jul 11 01:42:37 CEST 2005 8060.3 Mon Jul 11 01:42:37 CEST 2005
7 - restructured manpage. 807 - restructured manpage.

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