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Comparing IO-AIO/Changes (file contents):
Revision 1.201 by root, Wed Jul 1 08:12:18 2009 UTC vs.
Revision 1.415 by root, Tue Feb 20 06:40:23 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 4TODO: aio_cptree/mvtree
5TODO: reduce condvar fairness: schedule hot-cache-threads first?
6TODO: splice/tee/vmsplice? (http://kerneltrap.org/node/6505 http://lwn.net/Articles/178199/) 5TODO: vmsplice? (http://kerneltrap.org/node/6505 http://lwn.net/Articles/178199/)
7TODO: aio_fcntl, at least for file-locking 6TODO: getxattr, setxattr, listxattr, removexattr etc.?
8TODO: fallocate, if it wouldn't be so useless. 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/
48TODO: aio_mmap
49
504.81 Tue 20 Feb 2024 07:38:35 CET
51 - work around a bug in musl w.r.t to O_SEARCH and use EIO_O_PATH instead,
52 vertifying the semantics against the subset of O_PATH and O_SEARCH
53 (based on a report by Steve Dondley).
54 - aio_copy now tries to preallocate the destination file.
55 - fexecve configure test used the wrong pĆ¼ointer type (patch by Paul Howarth).
56
574.80 Sat 01 Apr 2023 04:13:37 CEST
58 - remove long obsolete "paths must be absolute" text in aio_open/stat
59 descriptions.
60 - another workaround for the low-quality musl libc.
61 - test for umount seperately, as it is more portable.
62 - some low-quality posix attempts (openbsd, osx) declare the availability
63 of fexecve but then don't even bother to implemnent a stub.
64
654.79 Sun 25 Sep 2022 18:25:53 CEST
66 - the autoconf result of the mount check was not used, so it failed to
67 compile on most systems (reported by crackoff@tutanota.com).
68 - work around fedora not having a working C compiler setup by design
69 (reported by Paul Howarth).
70
714.78 Tue 06 Sep 2022 12:54:43 CEST
72 - add IO::AIO::mount and IO::AIO::umount.
73 - add a bunch of symbols from sys/mount.h.
74
754.77 Mon 05 Sep 2022 02:03:38 CEST
76 - add MFD_HUGETLB_2MB and MFD_HUGETLB_1GB constants.
77 - add fexecve.
78 - add lots of missing functions to @EXPORT_OK.
79
804.76 Tue Jul 27 20:45:01 CEST 2021
81 - add autoconf test for siginfo_t, which is, of course, not
82 available on windows (reported by Peter Petky).
83 - disable syscalls on solaris, as perl seems to provide an
84 incompatible syscall prototype that clashes with sys/syscall.h.
85 - add MAP_FIXED_NOREPLACE, MAP_SHARED_VALIDATE, MAP_SYNC and
86 MAP_UNINITIALIZED.
87
884.75 Wed Dec 30 08:44:55 CET 2020
89 - removed leftover debug output from treescan.
90 - added (but not documented) waitid-P_*, FSPICK_*, FSOPEN_*,
91 FSCONFIG_*, MOUNT_ATTR_* constants.
92
934.74 Tue Dec 29 16:19:28 CET 2020
94 - added pidfd_open, pidfd_getfd and pidfd_send_signal functions.
95 - rework bin/treescan to avoid recursion. This fixes two bugs
96 where a deep directory traversal or a lot of command line
97 arguments could cause it to crash.
98 - added (but not documented) open_tree, AT_* and move_mount flags.
99 - support defining syscall numbers in gendef0.
100
1014.73 Fri Dec 4 02:08:37 CET 2020
102 - def0.h was not uptodate, running into musl problems
103 (reported by B Fraser).
104 - IO::AIO::splice and IO::AIO::tee didn't properly return
105 64 bit values.
106 - added IO::AIO::accept4.
107 - add various F_SEAL related fcntl constants.
108 - removed experimental marker for fdlimit functions.
109 - fiemap now includes the last segment even if it overflows
110 the end offset, which is arguably the correct behaviour.
111
1124.72 Wed Apr 3 04:56:03 CEST 2019
113 - (libeio) if fd 0 is available do not use it for aio_wd, as it
114 collides with IO::AIO::CWD.
115 - added IO::AIO::memfd_create.
116 - correctly include <sys/uio.h> in the vmsplice test.
117 - reduce codesize by ~7% on amd64 by declaring more functions
118 as noinline.
119 - documentation fixes and updates.
120 - experimental and undocumented preliminary support for synchronous statx.
121
1224.71 Sun Mar 10 13:09:26 CET 2019
123 - due to an error in the linux manpages, the configure tests
124 for readahead, sync_file_range, splice etc. failed. This has been fixed.
125
1264.7 Mon Mar 4 11:28:13 CET 2019
127 - majorly speed up scandir for the very special case of a non-POSIX
128 filesystem that nevertheless reports valid dt_type information.
129 The only known filesystem of this type is currently btrfs, which
130 didn't get it's act together to implement POSIX semantics in all
131 these years, and I am tired of waiting.
132 - add IO::AIO::MCL_ONFAULT for mlockall, add IO::AIO::mlockall.
133 - neither sys/mkdev.h nor sys/sysmacros.h were included, even when they
134 were detected by autoconf.
135
1364.6 Sat Aug 25 21:58:36 CEST 2018
137 - add st_btime, st_btimesec, st_btimensec and st_gen accessors,
138 mostly for bsds which expose birthtime and st_gen members (netbsd, freebsd
139 but only st_gen on openbsd because they compiled their perl without support
140 for birthtimes).
141 - fix madvise and munlock to properly support negative offsets.
142 - allocate fd for the aio_close at boot time, to guarantee it working
143 later, rather than calling abort when it fails. also avoids
144 close-on-exec race issues after module load.
145 - #undef utime on win32, maybe this helps some reports of utime hangs.
146 - minor doc improvements.
147 - minor configure cleanups.
148 - use $Config{perllibs} instead of libs for configure. might help people
149 who didn't install all perl dependencies (might break things as well).
150
1514.54 Tue Aug 14 13:54:48 CEST 2018
152 - include sys/mkdev.h or sys/sysmacros.h if available.
153 - further tweaks to configure invocation for systems requiring --rpath.
154 - no longer rely on custom paths on win32 platforms.
155 - try to work around buggy PAGESIZE macro on solaris.
156
1574.53 Tue Aug 14 11:27:50 CEST 2018
158 - add $Config{libs} to LIBS for configure, to work around systems
159 with broken library dependencies (... openbsd).
160
1614.52 Sun Aug 12 08:09:45 CEST 2018
162 - config.h.in was missing in distribution.
163
1644.51 Sun Aug 12 07:24:14 CEST 2018
165 - complete rework of the autoconf framework: IO::AIO now uses its own
166 config.h, separate from libeio, and tries to test the actual perl
167 environment, not the standard system environment.
168 - provide nanosecond-accracy stat time accessors for both perl and IO::AIO
169 stat functions.
170 - removed non-portable C++ syntax from eio.c.
171 - try to fix readdir tests on cygwin spuriously failing.
172
1734.5 Wed Aug 1 00:23:55 CEST 2018
174 - aio_mtouch touch all pages as requested, not just the first page in most cases.
175 - new function: IO::AIO::mremap, linux-specific mremap, with constants MREMAP_MAYMOVE
176 and MREMAP_FIXED.
177 - add O_ACCMODE.
178 - add (undocumented) MSG_CMSG_CLOEXEC and SOCK_CLOEXEC constants.
179
1804.4 Tue Feb 20 07:54:12 CET 2018
181 - new aio_slurp request.
182 - add (experimental) IO::AIO::eventfd and timerfd* function.
183 - add (experimental) IO::AIO::get_fdlimit and IO::AIO::min_fdlimit.
184 - point out that aio_copy overwrites existing files.
185 - removed filesystem magic number table from aio_statvfs docs as
186 statvfs doesn't actually return this info at all (statfs does).
187 - add a bunch of (mostly linux-specific) constants for use in ioctls
188 (see aio_ioctl docs).
189 - treescan now has a proper manpage and useful --help output.
190 - new option --sync in treescan, to sync everything in a subtree.
191 - changed default for aio_msync flags to MSYNC_SYNC.
192 - document offset/length behaviour of mprotect/madvise.
193 - support linux's renameat2 (via aio_rename2).
194 - add aio_rename2, an aio_rename with flags.
195 - add F_DUPPFD_CLOEXEC, F_OFD_[SG]ETLKW? constants.
196 - add FALLOC_FL_INSERT_RANGE, FALLOC_FL_UNSHARE_RANGE.
197 - (libeio) use posix_close if available.
198 - (libeio) internal close() calls no longer disturb errno.
199 - add IO:AIO::FALLOC_FL_UNSHARE.
200 - update schmorp.h for removal of USE_SOCKETS_AS_HANDLES
201 and better eventfd detection.
202
2034.34 Sun May 1 19:18:24 CEST 2016
204 - def0.h was not properly generated during previous release, causing
205 compile errors on various platforms.
206 - major/minor were accidentally switched (reported by Alexander Lishenyuk).
207 - removed duplicate definition of MAP_HUGETLB, that was found due to
208 a bug in Perl::Tidy (testcase by alaska332@gmail.com).
209 - added (untested!) aio_fcntl, aio_ioctl requests.
210 - (libeio) names set via prctl are truncated to 15 chars + nul, not 16,
211 as manpages-dev originally claimed.
212
2134.33 Mon Jan 18 12:50:10 CET 2016
214 - add IO::AIO::pipe2 function.
215 - added support for FALLOC_FL_COLLAPSE_RANGE and FALLOC_FL_ZERO_RANGE
216 constants.
217 - added support for O_TMPFILE and O_PATH constants.
218 - added support for MAP_FIXED, MAP_GROWSDOWN,MAP_32BIT, MAP_HUGETLB, MAP_STACK
219 consdtants, whether they can be sensibly used or not.
220 - use NO_INIT where applicable.
221 - update libecb.
222 - added stability canary support.
223 - updated linux super magic table to 4.3.3.
224
2254.32 Wed Feb 11 20:32:11 CET 2015
226 - replace off_t by STRLEN where appropriate, should not result in
227 user-visible changes.
228 - update ecb.h for C11 compatibility.
229
2304.31 Tue Jun 3 03:29:27 CEST 2014
231 - work around more 5.20 bugs. backwards compatibility my ass.
232
2334.3 Fri Apr 11 06:22:38 CEST 2014
234 - perl5porters broke Async::Interrupt, BDB, EV, IO::AIO, OpenCL
235 without warning by switching the meaning of USE_SOCKETS_AS_HANDLES
236 in 5.18. What's so attractive about giving a shit about backwards
237 compatibility - I will never understand.
238
2394.2 Sat Jan 25 01:13:14 CET 2014
240 - aio_group could corrupt memory because it didn't restore
241 the stack after req_submit.
242 - be more careful on (e.g. permission) errors in bin/treescan.
243 - work around changes in ExtUtils::MakeMaker.
244 - (libeio) implement aio_realpath for win32.
245 - (xthread) work around compile time bugs in ptw32.
246 - added IO::AIO::pipesize.
247 - (libecb) insignificant update.
248
2494.19 Sun Jan 6 12:47:26 CET 2013
250 - avoid endless loop in fiemap with some XFS files.
251 - in aio_rename and aio_rmdir, specialcase the case of [$wd, "."]
252 and call rename/rmdir instead of renameat/unlinkat.
253
2544.18 Thu Oct 11 07:01:26 CEST 2012
255 - fix unintended xthread_create by intentionalising it :)
256
2574.17 Thu Oct 11 05:19:47 CEST 2012
258 - rename aio_fallocate to aio_allocate, to match documentation.
259 - add list of linux fsid values to aio_statvfs docs.
260 - work around a bug in btrfs' FIEMAP ioctl implementation.
261 - work around AIX bug: statvfs.f_fsid is a struct, not unsigned long
262 as per unix spec.
263
2644.16 Tue Aug 14 05:39:03 CEST 2012
265 - aio_statvfs was wromgly marked for wd emulation, causing
266 it to malfunction for paths.
267 - fix a crash in aio_fiemap, when used on ranges without any
268 extents.
269 - work around linux kernel bug (at least in 3.2): kernel might
270 trash fiemap input arguments.
271 - work around linux kernel bug (at least in 3.2): kernel does not
272 set FIEMAP_EXTENT_LAST on last segment.
273 - work around linux kernel bug (at least in 3.2): kernel silently
274 truncates segment count if a file.
275 - make fh argument of IO::AIO::mmap optional, also add mmap/munmap
276 to quick overview.
277 - splice can corrupt data.
278 - (libeio) remove pread/pwrite emulation.
279 - do not grow mmaped scalars in aio_read.
280 - add FALLOC_FL_PUNCH_HOLE and document fallocate.
281 - provide pread/pwrite for win32, making it link again on native win32.
282
2834.15 Tue Apr 10 06:59:00 CEST 2012
284 - always include linux/types.h for fiemap, for compatibility to
285 ancient systems (Paul Howarth).
286 - experimental support for IO::AIO::splice and ::tee (no aio_...).
287 - provide SEEK_HOLE and SEEK_DATA, if available.
288 - work around (again!) an immensely stupid bug in RHEL, defining
289 autoconf macros in linux system headers (analysed by Paul Howarth).
290
2914.14 Sat Apr 7 02:45:18 CEST 2012
292 - fix stat structure usage on windows, which caused bogus stat results.
293 - (libeio) make readahead emulation behave more like actual readahead by never failing.
294 - new request aio_seek.
295 - new request aio_fiemap.
296 - autogenerate the #ifdef/#define 0 blocks for symbols we export.
297
2984.12 Fri Dec 30 08:51:25 CET 2011
299 - realpath would return a random value if the name was too long,
300 instead of -1.
301 - port to c89.
302
3034.11 Mon Oct 10 00:24:11 CEST 2011
304 - libeio didn't compile on !linux (Paul Howarth).
305
3064.1 Sun Oct 9 10:24:11 CEST 2011
307 - IO::AIO did access uninitialised memory on unsuccessful stats.
308 - (libeio) added syncfs syscall wrapper.
309 - (libeio) set thread name on linux (ps -L/Hcx, top, gdb).
310 - (libeio) support multiple indepenent working directories.
311 - applied speling corrections by Nicholas Bamber.
312 - tune treescan #threads and #outstanding requests a bit.
313 - reduce the number of file descriptors in use at any one time
314 in treescan, to avoid running out of them (and using too much ram).
315 - take advantage of working directoriy abstractions
316 in aio_scandir and treescan.
317 - reduce compiled size by ~10% by not inlining some key functionality.
318 - added --progress switch to treescan.
319
3204.0 Mon Jul 18 05:01:10 CEST 2011
321 - INCOMPATIBLE CHANGE: fork is no longer supported (indeed, it never was),
322 see FORK BEHAVIOUR in manpage for details.
323 - passes testsuite on win32 now and may actually work
324 (activestate 5.10.1 / MSVC6, YMMV).
325 - (libeio) fix a deadlock where a wakeup signal could be missed when
326 a timeout occured at the same time.
327 - (libeio) added realpath.
328 - (libeio) added fallocate.
329 - (libeio) disabling sendfile on darwin unfortunately broke the emulation.
330 - (libeio) do not acquire any locks when forking.
331 - (libeio) use fewer time() syscalls when waiting for new requests.
332
3333.93 Wed Jun 29 23:44:18 CEST 2011
334 - ECB.H WAS MISSING.
335
3363.92 Wed Jun 29 14:45:41 CEST 2011
337 - ecb.h was missing.
338
3393.91 Wed Jun 29 13:24:42 CEST 2011
340 - (libeio) work around a Linux (and likely FreeBSD and other
341 kernels) bug where sendfile would not transfer all the requested
342 bytes on large transfers, using a heuristic.
343 - buggy sendfile caused aio_move/copy to sometimes fail for big
344 files (fortunately it checks that the whole file has been
345 transferred...)
346 - use libecb for higher performance and higher portability.
347 - (libeio) disable sendfile on darwin, it's too broken.
348 - disable fork tests on !linux, as only linux supports mixing
349 pthread and fork in perl.
350 - document the fact that fork doesn't work anymore when using
351 this module, on anything !GNU/Linux.
352 - increase timeout in t/04_fork.t, as too many CPAN-tester setups
353 run on a 0.1MHz cpu. Or so.
354
3553.9 Fri May 27 02:43:47 CEST 2011
356 - (libeio) fix memory corruption in aio_readdirx for the flags
357 combination READDIR_STAT_ORDER | READDIR_DIRS_FIRST.
358 - add lots of newer POSIX and GNU/Linux-specific open
359 flags.
360
3613.8 Sun Mar 27 12:25:33 CEST 2011
362 - use nonstandard but maybe-working-on-bsd fork technique.
363 - support a max_idle value of 0.
364 - support setting of idle timeout value (IO::AIO::idle_timeout).
365
3663.72 Fri Feb 11 04:25:38 CET 2011
367 - use _POSIX_MEMLOCK_RANGE to detect mlock/munlock.
368 - aio_mknod always used a dev_t value of 0.
369 - new treescan option: --grep.
370 - add more S_IF macros, and major/minor/makedev "macros".
371
3723.71 Thu Dec 30 08:18:46 CET 2010
373 - the numerical result value passed to callbacks did not stringify
374 correctly, due to internal reuse and failure to reset the sv flags.
375 - actually test for posix_[mf]advise, as at least uClibc defines
376 _POSIX_ADVISORY_INFO without actually having any of the required
377 funcitonality. ugh.
378
3793.7 Mon Nov 1 23:00:34 CET 2010
380 - implement/add madvise, mmap, munmap, aio_mlockall, munlockall,
381 aio_mlock, munlock, msync and mtouch to @EXPORT_OK.
382 - document the sad state of affairs w.r.t. pthread on many bsds.
383 - do not enable mmap on systems without _POSIX_MAPPED_FILES
384 (openbsd 4.8).
385 - do not leak memory in IO::AIO::mmap when the scalar already
386 had string-data.
387 - add O_RDWR, O_APPEND and O_EXCL symbols and semi-document
388 them.
389 - cache the result IV, for a minor speedup in the common case.
390 - croak when an mmapped-scalar changes location, to detect
391 user-errors better.
392 - fix aio_readlink prototype.
393
3943.65 Wed Mar 31 02:45:05 CEST 2010
395 - actually use PATH_MAX instead of NAME_MAX for readlink, as to not
396 cut off long pathnames in aio_readlink (based on patch by
397 Rasmus Andersson).
398 - a double fork partially killed the event pipe (great testcase
399 by dormando). affects IO::AIO, BDB and Async::Interrupt.
400 - suck steve's dick and rename our symbols to avoid colliding
401 with nonstandard identifier spam on the broken os x pseudo-os.
402 affects IO::AIO and BDB.
403
4043.6 Mon Jan 11 00:43:39 CET 2010
405 - (libeio) more fixes for the freebsd/apple sendfile - broken by
406 manpage standards, but apparently correct accoridng to actual
407 kernel sources.
408 - add IO::AIO::mmap/munmap support.
409 - add IO::AIO::m(un)lockall support.
410 - clean up manpage.
411
4123.5 Thu Jan 7 21:25:04 CET 2010
413 - (liebio) fix freebsd sendfile (Vanilla Hsu).
414 - (libeio) also fix darwin sendfile that suffered from a similar bug.
415 - add aio_statvfs as interface to statvfs/fstatvfs.
416 - work around buggy symlink() on cygwin in the testsuite.
417 - wtf. freebsd-8.0 actually passes the testsuite! I knew
418 they could implement fork and semaphores one day! cheers!
419
4203.4 Sat Jan 2 15:13:04 CET 2010
421 - (libeio) max_poll_time was not properly converted to ticks.
422 - clarify cancel_subs description.
423 - IO::AIO::sendfile did not actually return the return value
424 from the sendfile call.
425 - implement aio_msync, aio_mtouch.
426 - (libeio) tentatively support darwin in sendfile.
427
4283.31 Thu Nov 12 02:14:29 CET 2009
429 - fix result status documentation of aio_copy, aio_move.
430 - speed up object creation considerably by avoiding
431 hash lookups.
432
4333.3 Wed Aug 5 13:52:58 CEST 2009
434 - use common::sense.
435 - use common schmorp.h header.
436 - allow integers (file descriptors) in addition to file handles.
437 - take advantage of linux' eventfd (but it seems slower on smp?).
438 - use poll not select on posix platforms.
9 439
103.261 Wed Jul 1 10:11:51 CEST 2009 4403.261 Wed Jul 1 10:11:51 CEST 2009
11 - more OS X workarounds (patch by Tokuhiro Matsuno). 441 - more 0S X workarounds (patch by Tokuhiro Matsuno).
12 442
133.26 Tue Jun 30 09:33:26 CEST 2009 4433.26 Tue Jun 30 09:33:26 CEST 2009
14 - os x of course claims posix 2008 but lacks posix_fadvise. try to work 444 - 0S X of course claims to be posix 2008 but lacks posix_fadvise.
15 around this horribly broken OS in a somewhat hackish way. might help 445 try to work around this horribly broken OS in a somewhat hackish
16 other os's too. 446 way. might help other os's too.
17 447
183.25 Sat Jun 27 05:18:26 CEST 2009 4483.25 Sat Jun 27 05:18:26 CEST 2009
19 - added IO::AIO::fadvise and IO::AIO::sendfile. 449 - added IO::AIO::fadvise and IO::AIO::sendfile.
20 - (libeio) replaced quicksort+insertion sort by a tuned radix 450 - (libeio) replaced quicksort+insertion sort by a tuned radix
21 sort + insertion sort, resulting in comparable runtime (usually 451 sort + insertion sort, resulting in comparable runtime (usually

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