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Comparing IO-AIO/Changes (file contents):
Revision 1.202 by root, Tue Jul 14 00:13:36 2009 UTC vs.
Revision 1.407 by root, Sun Sep 25 16:30:51 2022 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
9 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
494.79 Sun 25 Sep 2022 18:25:53 CEST
50 - the autoconf result of the mount check was not used, so it failed to
51 compile on most systems (reported by crackoff@tutanota.com).
52 - work around fedora not having a working C compiler setup by design
53 (reported by Paul Howarth).
54
554.78 Tue 06 Sep 2022 12:54:43 CEST
56 - add IO::AIO::mount and IO::AIO::umount.
57 - add a bunch of symbols from sys/mount.h.
58
594.77 Mon 05 Sep 2022 02:03:38 CEST
60 - add MFD_HUGETLB_2MB and MFD_HUGETLB_1GB constants.
61 - add fexecve.
62 - add lots of missing functions to @EXPORT_OK.
63
644.76 Tue Jul 27 20:45:01 CEST 2021
65 - add autoconf test for siginfo_t, which is, of course, not
66 available on windows (reported by Peter Petky).
67 - disable syscalls on solaris, as perl seems to provide an
68 incompatible syscall prototype that clashes with sys/syscall.h.
69 - add MAP_FIXED_NOREPLACE, MAP_SHARED_VALIDATE, MAP_SYNC and
70 MAP_UNINITIALIZED.
71
724.75 Wed Dec 30 08:44:55 CET 2020
73 - removed leftover debug output from treescan.
74 - added (but not documented) waitid-P_*, FSPICK_*, FSOPEN_*,
75 FSCONFIG_*, MOUNT_ATTR_* constants.
76
774.74 Tue Dec 29 16:19:28 CET 2020
78 - added pidfd_open, pidfd_getfd and pidfd_send_signal functions.
79 - rework bin/treescan to avoid recursion. This fixes two bugs
80 where a deep directory traversal or a lot of command line
81 arguments could cause it to crash.
82 - added (but not documented) open_tree, AT_* and move_mount flags.
83 - support defining syscall numbers in gendef0.
84
854.73 Fri Dec 4 02:08:37 CET 2020
86 - def0.h was not uptodate, running into musl problems
87 (reported by B Fraser).
88 - IO::AIO::splice and IO::AIO::tee didn't properly return
89 64 bit values.
90 - added IO::AIO::accept4.
91 - add various F_SEAL related fcntl constants.
92 - removed experimental marker for fdlimit functions.
93 - fiemap now includes the last segment even if it overflows
94 the end offset, which is arguably the correct behaviour.
95
964.72 Wed Apr 3 04:56:03 CEST 2019
97 - (libeio) if fd 0 is available do not use it for aio_wd, as it
98 collides with IO::AIO::CWD.
99 - added IO::AIO::memfd_create.
100 - correctly include <sys/uio.h> in the vmsplice test.
101 - reduce codesize by ~7% on amd64 by declaring more functions
102 as noinline.
103 - documentation fixes and updates.
104 - experimental and undocumented preliminary support for synchronous statx.
105
1064.71 Sun Mar 10 13:09:26 CET 2019
107 - due to an error in the linux manpages, the configure tests
108 for readahead, sync_file_range, splice etc. failed. This has been fixed.
109
1104.7 Mon Mar 4 11:28:13 CET 2019
111 - majorly speed up scandir for the very special case of a non-POSIX
112 filesystem that nevertheless reports valid dt_type information.
113 The only known filesystem of this type is currently btrfs, which
114 didn't get it's act together to implement POSIX semantics in all
115 these years, and I am tired of waiting.
116 - add IO::AIO::MCL_ONFAULT for mlockall, add IO::AIO::mlockall.
117 - neither sys/mkdev.h nor sys/sysmacros.h were included, even when they
118 were detected by autoconf.
119
1204.6 Sat Aug 25 21:58:36 CEST 2018
121 - add st_btime, st_btimesec, st_btimensec and st_gen accessors,
122 mostly for bsds which expose birthtime and st_gen members (netbsd, freebsd
123 but only st_gen on openbsd because they compiled their perl without support
124 for birthtimes).
125 - fix madvise and munlock to properly support negative offsets.
126 - allocate fd for the aio_close at boot time, to guarantee it working
127 later, rather than calling abort when it fails. also avoids
128 close-on-exec race issues after module load.
129 - #undef utime on win32, maybe this helps some reports of utime hangs.
130 - minor doc improvements.
131 - minor configure cleanups.
132 - use $Config{perllibs} instead of libs for configure. might help people
133 who didn't install all perl dependencies (might break things as well).
134
1354.54 Tue Aug 14 13:54:48 CEST 2018
136 - include sys/mkdev.h or sys/sysmacros.h if available.
137 - further tweaks to configure invocation for systems requiring --rpath.
138 - no longer rely on custom paths on win32 platforms.
139 - try to work around buggy PAGESIZE macro on solaris.
140
1414.53 Tue Aug 14 11:27:50 CEST 2018
142 - add $Config{libs} to LIBS for configure, to work around systems
143 with broken library dependencies (... openbsd).
144
1454.52 Sun Aug 12 08:09:45 CEST 2018
146 - config.h.in was missing in distribution.
147
1484.51 Sun Aug 12 07:24:14 CEST 2018
149 - complete rework of the autoconf framework: IO::AIO now uses its own
150 config.h, separate from libeio, and tries to test the actual perl
151 environment, not the standard system environment.
152 - provide nanosecond-accracy stat time accessors for both perl and IO::AIO
153 stat functions.
154 - removed non-portable C++ syntax from eio.c.
155 - try to fix readdir tests on cygwin spuriously failing.
156
1574.5 Wed Aug 1 00:23:55 CEST 2018
158 - aio_mtouch touch all pages as requested, not just the first page in most cases.
159 - new function: IO::AIO::mremap, linux-specific mremap, with constants MREMAP_MAYMOVE
160 and MREMAP_FIXED.
161 - add O_ACCMODE.
162 - add (undocumented) MSG_CMSG_CLOEXEC and SOCK_CLOEXEC constants.
163
1644.4 Tue Feb 20 07:54:12 CET 2018
165 - new aio_slurp request.
166 - add (experimental) IO::AIO::eventfd and timerfd* function.
167 - add (experimental) IO::AIO::get_fdlimit and IO::AIO::min_fdlimit.
168 - point out that aio_copy overwrites existing files.
169 - removed filesystem magic number table from aio_statvfs docs as
170 statvfs doesn't actually return this info at all (statfs does).
171 - add a bunch of (mostly linux-specific) constants for use in ioctls
172 (see aio_ioctl docs).
173 - treescan now has a proper manpage and useful --help output.
174 - new option --sync in treescan, to sync everything in a subtree.
175 - changed default for aio_msync flags to MSYNC_SYNC.
176 - document offset/length behaviour of mprotect/madvise.
177 - support linux's renameat2 (via aio_rename2).
178 - add aio_rename2, an aio_rename with flags.
179 - add F_DUPPFD_CLOEXEC, F_OFD_[SG]ETLKW? constants.
180 - add FALLOC_FL_INSERT_RANGE, FALLOC_FL_UNSHARE_RANGE.
181 - (libeio) use posix_close if available.
182 - (libeio) internal close() calls no longer disturb errno.
183 - add IO:AIO::FALLOC_FL_UNSHARE.
184 - update schmorp.h for removal of USE_SOCKETS_AS_HANDLES
185 and better eventfd detection.
186
1874.34 Sun May 1 19:18:24 CEST 2016
188 - def0.h was not properly generated during previous release, causing
189 compile errors on various platforms.
190 - major/minor were accidentally switched (reported by Alexander Lishenyuk).
191 - removed duplicate definition of MAP_HUGETLB, that was found due to
192 a bug in Perl::Tidy (testcase by alaska332@gmail.com).
193 - added (untested!) aio_fcntl, aio_ioctl requests.
194 - (libeio) names set via prctl are truncated to 15 chars + nul, not 16,
195 as manpages-dev originally claimed.
196
1974.33 Mon Jan 18 12:50:10 CET 2016
198 - add IO::AIO::pipe2 function.
199 - added support for FALLOC_FL_COLLAPSE_RANGE and FALLOC_FL_ZERO_RANGE
200 constants.
201 - added support for O_TMPFILE and O_PATH constants.
202 - added support for MAP_FIXED, MAP_GROWSDOWN,MAP_32BIT, MAP_HUGETLB, MAP_STACK
203 consdtants, whether they can be sensibly used or not.
204 - use NO_INIT where applicable.
205 - update libecb.
206 - added stability canary support.
207 - updated linux super magic table to 4.3.3.
208
2094.32 Wed Feb 11 20:32:11 CET 2015
210 - replace off_t by STRLEN where appropriate, should not result in
211 user-visible changes.
212 - update ecb.h for C11 compatibility.
213
2144.31 Tue Jun 3 03:29:27 CEST 2014
215 - work around more 5.20 bugs. backwards compatibility my ass.
216
2174.3 Fri Apr 11 06:22:38 CEST 2014
218 - perl5porters broke Async::Interrupt, BDB, EV, IO::AIO, OpenCL
219 without warning by switching the meaning of USE_SOCKETS_AS_HANDLES
220 in 5.18. What's so attractive about giving a shit about backwards
221 compatibility - I will never understand.
222
2234.2 Sat Jan 25 01:13:14 CET 2014
224 - aio_group could corrupt memory because it didn't restore
225 the stack after req_submit.
226 - be more careful on (e.g. permission) errors in bin/treescan.
227 - work around changes in ExtUtils::MakeMaker.
228 - (libeio) implement aio_realpath for win32.
229 - (xthread) work around compile time bugs in ptw32.
230 - added IO::AIO::pipesize.
231 - (libecb) insignificant update.
232
2334.19 Sun Jan 6 12:47:26 CET 2013
234 - avoid endless loop in fiemap with some XFS files.
235 - in aio_rename and aio_rmdir, specialcase the case of [$wd, "."]
236 and call rename/rmdir instead of renameat/unlinkat.
237
2384.18 Thu Oct 11 07:01:26 CEST 2012
239 - fix unintended xthread_create by intentionalising it :)
240
2414.17 Thu Oct 11 05:19:47 CEST 2012
242 - rename aio_fallocate to aio_allocate, to match documentation.
243 - add list of linux fsid values to aio_statvfs docs.
244 - work around a bug in btrfs' FIEMAP ioctl implementation.
245 - work around AIX bug: statvfs.f_fsid is a struct, not unsigned long
246 as per unix spec.
247
2484.16 Tue Aug 14 05:39:03 CEST 2012
249 - aio_statvfs was wromgly marked for wd emulation, causing
250 it to malfunction for paths.
251 - fix a crash in aio_fiemap, when used on ranges without any
252 extents.
253 - work around linux kernel bug (at least in 3.2): kernel might
254 trash fiemap input arguments.
255 - work around linux kernel bug (at least in 3.2): kernel does not
256 set FIEMAP_EXTENT_LAST on last segment.
257 - work around linux kernel bug (at least in 3.2): kernel silently
258 truncates segment count if a file.
259 - make fh argument of IO::AIO::mmap optional, also add mmap/munmap
260 to quick overview.
261 - splice can corrupt data.
262 - (libeio) remove pread/pwrite emulation.
263 - do not grow mmaped scalars in aio_read.
264 - add FALLOC_FL_PUNCH_HOLE and document fallocate.
265 - provide pread/pwrite for win32, making it link again on native win32.
266
2674.15 Tue Apr 10 06:59:00 CEST 2012
268 - always include linux/types.h for fiemap, for compatibility to
269 ancient systems (Paul Howarth).
270 - experimental support for IO::AIO::splice and ::tee (no aio_...).
271 - provide SEEK_HOLE and SEEK_DATA, if available.
272 - work around (again!) an immensely stupid bug in RHEL, defining
273 autoconf macros in linux system headers (analysed by Paul Howarth).
274
2754.14 Sat Apr 7 02:45:18 CEST 2012
276 - fix stat structure usage on windows, which caused bogus stat results.
277 - (libeio) make readahead emulation behave more like actual readahead by never failing.
278 - new request aio_seek.
279 - new request aio_fiemap.
280 - autogenerate the #ifdef/#define 0 blocks for symbols we export.
281
2824.12 Fri Dec 30 08:51:25 CET 2011
283 - realpath would return a random value if the name was too long,
284 instead of -1.
285 - port to c89.
286
2874.11 Mon Oct 10 00:24:11 CEST 2011
288 - libeio didn't compile on !linux (Paul Howarth).
289
2904.1 Sun Oct 9 10:24:11 CEST 2011
291 - IO::AIO did access uninitialised memory on unsuccessful stats.
292 - (libeio) added syncfs syscall wrapper.
293 - (libeio) set thread name on linux (ps -L/Hcx, top, gdb).
294 - (libeio) support multiple indepenent working directories.
295 - applied speling corrections by Nicholas Bamber.
296 - tune treescan #threads and #outstanding requests a bit.
297 - reduce the number of file descriptors in use at any one time
298 in treescan, to avoid running out of them (and using too much ram).
299 - take advantage of working directoriy abstractions
300 in aio_scandir and treescan.
301 - reduce compiled size by ~10% by not inlining some key functionality.
302 - added --progress switch to treescan.
303
3044.0 Mon Jul 18 05:01:10 CEST 2011
305 - INCOMPATIBLE CHANGE: fork is no longer supported (indeed, it never was),
306 see FORK BEHAVIOUR in manpage for details.
307 - passes testsuite on win32 now and may actually work
308 (activestate 5.10.1 / MSVC6, YMMV).
309 - (libeio) fix a deadlock where a wakeup signal could be missed when
310 a timeout occured at the same time.
311 - (libeio) added realpath.
312 - (libeio) added fallocate.
313 - (libeio) disabling sendfile on darwin unfortunately broke the emulation.
314 - (libeio) do not acquire any locks when forking.
315 - (libeio) use fewer time() syscalls when waiting for new requests.
316
3173.93 Wed Jun 29 23:44:18 CEST 2011
318 - ECB.H WAS MISSING.
319
3203.92 Wed Jun 29 14:45:41 CEST 2011
321 - ecb.h was missing.
322
3233.91 Wed Jun 29 13:24:42 CEST 2011
324 - (libeio) work around a Linux (and likely FreeBSD and other
325 kernels) bug where sendfile would not transfer all the requested
326 bytes on large transfers, using a heuristic.
327 - buggy sendfile caused aio_move/copy to sometimes fail for big
328 files (fortunately it checks that the whole file has been
329 transferred...)
330 - use libecb for higher performance and higher portability.
331 - (libeio) disable sendfile on darwin, it's too broken.
332 - disable fork tests on !linux, as only linux supports mixing
333 pthread and fork in perl.
334 - document the fact that fork doesn't work anymore when using
335 this module, on anything !GNU/Linux.
336 - increase timeout in t/04_fork.t, as too many CPAN-tester setups
337 run on a 0.1MHz cpu. Or so.
338
3393.9 Fri May 27 02:43:47 CEST 2011
340 - (libeio) fix memory corruption in aio_readdirx for the flags
341 combination READDIR_STAT_ORDER | READDIR_DIRS_FIRST.
342 - add lots of newer POSIX and GNU/Linux-specific open
343 flags.
344
3453.8 Sun Mar 27 12:25:33 CEST 2011
346 - use nonstandard but maybe-working-on-bsd fork technique.
347 - support a max_idle value of 0.
348 - support setting of idle timeout value (IO::AIO::idle_timeout).
349
3503.72 Fri Feb 11 04:25:38 CET 2011
351 - use _POSIX_MEMLOCK_RANGE to detect mlock/munlock.
352 - aio_mknod always used a dev_t value of 0.
353 - new treescan option: --grep.
354 - add more S_IF macros, and major/minor/makedev "macros".
355
3563.71 Thu Dec 30 08:18:46 CET 2010
357 - the numerical result value passed to callbacks did not stringify
358 correctly, due to internal reuse and failure to reset the sv flags.
359 - actually test for posix_[mf]advise, as at least uClibc defines
360 _POSIX_ADVISORY_INFO without actually having any of the required
361 funcitonality. ugh.
362
3633.7 Mon Nov 1 23:00:34 CET 2010
364 - implement/add madvise, mmap, munmap, aio_mlockall, munlockall,
365 aio_mlock, munlock, msync and mtouch to @EXPORT_OK.
366 - document the sad state of affairs w.r.t. pthread on many bsds.
367 - do not enable mmap on systems without _POSIX_MAPPED_FILES
368 (openbsd 4.8).
369 - do not leak memory in IO::AIO::mmap when the scalar already
370 had string-data.
371 - add O_RDWR, O_APPEND and O_EXCL symbols and semi-document
372 them.
373 - cache the result IV, for a minor speedup in the common case.
374 - croak when an mmapped-scalar changes location, to detect
375 user-errors better.
376 - fix aio_readlink prototype.
377
3783.65 Wed Mar 31 02:45:05 CEST 2010
379 - actually use PATH_MAX instead of NAME_MAX for readlink, as to not
380 cut off long pathnames in aio_readlink (based on patch by
381 Rasmus Andersson).
382 - a double fork partially killed the event pipe (great testcase
383 by dormando). affects IO::AIO, BDB and Async::Interrupt.
384 - suck steve's dick and rename our symbols to avoid colliding
385 with nonstandard identifier spam on the broken os x pseudo-os.
386 affects IO::AIO and BDB.
387
3883.6 Mon Jan 11 00:43:39 CET 2010
389 - (libeio) more fixes for the freebsd/apple sendfile - broken by
390 manpage standards, but apparently correct accoridng to actual
391 kernel sources.
392 - add IO::AIO::mmap/munmap support.
393 - add IO::AIO::m(un)lockall support.
394 - clean up manpage.
395
3963.5 Thu Jan 7 21:25:04 CET 2010
397 - (liebio) fix freebsd sendfile (Vanilla Hsu).
398 - (libeio) also fix darwin sendfile that suffered from a similar bug.
399 - add aio_statvfs as interface to statvfs/fstatvfs.
400 - work around buggy symlink() on cygwin in the testsuite.
401 - wtf. freebsd-8.0 actually passes the testsuite! I knew
402 they could implement fork and semaphores one day! cheers!
403
4043.4 Sat Jan 2 15:13:04 CET 2010
405 - (libeio) max_poll_time was not properly converted to ticks.
406 - clarify cancel_subs description.
407 - IO::AIO::sendfile did not actually return the return value
408 from the sendfile call.
409 - implement aio_msync, aio_mtouch.
410 - (libeio) tentatively support darwin in sendfile.
411
4123.31 Thu Nov 12 02:14:29 CET 2009
413 - fix result status documentation of aio_copy, aio_move.
414 - speed up object creation considerably by avoiding
415 hash lookups.
416
4173.3 Wed Aug 5 13:52:58 CEST 2009
10 - use common::sense. 418 - use common::sense.
11 - use common schmorp.h header. 419 - use common schmorp.h header.
12 - allow integers (file descriptors) in addition to file handles. 420 - allow integers (file descriptors) in addition to file handles.
421 - take advantage of linux' eventfd (but it seems slower on smp?).
422 - use poll not select on posix platforms.
13 423
143.261 Wed Jul 1 10:11:51 CEST 2009 4243.261 Wed Jul 1 10:11:51 CEST 2009
15 - more OS X workarounds (patch by Tokuhiro Matsuno). 425 - more 0S X workarounds (patch by Tokuhiro Matsuno).
16 426
173.26 Tue Jun 30 09:33:26 CEST 2009 4273.26 Tue Jun 30 09:33:26 CEST 2009
18 - os x of course claims posix 2008 but lacks posix_fadvise. try to work 428 - 0S X of course claims to be posix 2008 but lacks posix_fadvise.
19 around this horribly broken OS in a somewhat hackish way. might help 429 try to work around this horribly broken OS in a somewhat hackish
20 other os's too. 430 way. might help other os's too.
21 431
223.25 Sat Jun 27 05:18:26 CEST 2009 4323.25 Sat Jun 27 05:18:26 CEST 2009
23 - added IO::AIO::fadvise and IO::AIO::sendfile. 433 - added IO::AIO::fadvise and IO::AIO::sendfile.
24 - (libeio) replaced quicksort+insertion sort by a tuned radix 434 - (libeio) replaced quicksort+insertion sort by a tuned radix
25 sort + insertion sort, resulting in comparable runtime (usually 435 sort + insertion sort, resulting in comparable runtime (usually

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