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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 1.403 by root, Mon Sep 5 00:03:32 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: mount/umount2/MS_* flags
22TODO: fsmount/fspick/fsconfig/fsmount et al. https://lwn.net/Articles/759499/
23TODO: ioprio_get/set
9 24
25TODO: rewrite rmtree et al. to support working directories (also speed them up)
26TODO: maybe IO::AIO leaks fds when requests are cancelled? maybe initialise result to -1?
27TODO: aio_wd should use O_PATH on linux, due to lacking O_SEARCH (http://comments.gmane.org/gmane.linux.file-systems/33611)
28 http://www.openwall.com/lists/musl/2013/02/23/4
29TODO: FIDEDUPERANGE, file_ioctl.c
30TODO: mincore
31TODO: SOCK_CLOEXEc etc.
32TODO: unlinkat flags, linkat flags, statat, renameat2 flags
33TODO: https://kernelnewbies.org/Linux_4.11
34TODO: define useful rules for [[$wd, $path], $path] &c and implement them
35TODO: https://github.com/coreutils/coreutils/blob/master/src/stat.c maybe IO::AIO::FSID
36TODO: mlock2, MLOCK_ONFAULT
37TODO: dup3, pipe2, accept4
38TODO: dump config.log when automated testign and configure fails
39TODO: ns time resolution in utime
40TODO: statx
41TODO: aio_fchdir/chdir? emulate chdirat?
42TODO: rt-4.0.18-20109-1573826674-1229.126277-5-0@rt.cpan.org
43TODO: aio_splice, aio_tee
44TODO: copy_file_range
45TODO: write more abpout the thread model, maybe bump some defaults?
46TODO: io_uring, but it's so broken :/
47TODO: allow import of fds as aio_wd
48TODO: close_range
49TODO: move_mount, open_tree, mount
50
51 - add MFD_HUGETLB_2MB and MFD_HUGETLB_1GB constants.
52 - add fexecve.
53 - add lots of missing functions to @EXPORT_OK.
54
554.76 Tue Jul 27 20:45:01 CEST 2021
56 - add autoconf test for siginfo_t, which is, of course, not
57 available on windows (reported by Peter Petky).
58 - disable syscalls on solaris, as perl seems to provide an
59 incompatible syscall prototype that clashes with sys/syscall.h.
60 - add MAP_FIXED_NOREPLACE, MAP_SHARED_VALIDATE, MAP_SYNC and
61 MAP_UNINITIALIZED.
62
634.75 Wed Dec 30 08:44:55 CET 2020
64 - removed leftover debug output from treescan.
65 - added (but not documented) waitid-P_*, FSPICK_*, FSOPEN_*,
66 FSCONFIG_*, MOUNT_ATTR_* constants.
67
684.74 Tue Dec 29 16:19:28 CET 2020
69 - added pidfd_open, pidfd_getfd and pidfd_send_signal functions.
70 - rework bin/treescan to avoid recursion. This fixes two bugs
71 where a deep directory traversal or a lot of command line
72 arguments could cause it to crash.
73 - added (but not documented) open_tree, AT_* and move_mount flags.
74 - support defining syscall numbers in gendef0.
75
764.73 Fri Dec 4 02:08:37 CET 2020
77 - def0.h was not uptodate, running into musl problems
78 (reported by B Fraser).
79 - IO::AIO::splice and IO::AIO::tee didn't properly return
80 64 bit values.
81 - added IO::AIO::accept4.
82 - add various F_SEAL related fcntl constants.
83 - removed experimental marker for fdlimit functions.
84 - fiemap now includes the last segment even if it overflows
85 the end offset, which is arguably the correct behaviour.
86
874.72 Wed Apr 3 04:56:03 CEST 2019
88 - (libeio) if fd 0 is available do not use it for aio_wd, as it
89 collides with IO::AIO::CWD.
90 - added IO::AIO::memfd_create.
91 - correctly include <sys/uio.h> in the vmsplice test.
92 - reduce codesize by ~7% on amd64 by declaring more functions
93 as noinline.
94 - documentation fixes and updates.
95 - experimental and undocumented preliminary support for synchronous statx.
96
974.71 Sun Mar 10 13:09:26 CET 2019
98 - due to an error in the linux manpages, the configure tests
99 for readahead, sync_file_range, splice etc. failed. This has been fixed.
100
1014.7 Mon Mar 4 11:28:13 CET 2019
102 - majorly speed up scandir for the very special case of a non-POSIX
103 filesystem that nevertheless reports valid dt_type information.
104 The only known filesystem of this type is currently btrfs, which
105 didn't get it's act together to implement POSIX semantics in all
106 these years, and I am tired of waiting.
107 - add IO::AIO::MCL_ONFAULT for mlockall, add IO::AIO::mlockall.
108 - neither sys/mkdev.h nor sys/sysmacros.h were included, even when they
109 were detected by autoconf.
110
1114.6 Sat Aug 25 21:58:36 CEST 2018
112 - add st_btime, st_btimesec, st_btimensec and st_gen accessors,
113 mostly for bsds which expose birthtime and st_gen members (netbsd, freebsd
114 but only st_gen on openbsd because they compiled their perl without support
115 for birthtimes).
116 - fix madvise and munlock to properly support negative offsets.
117 - allocate fd for the aio_close at boot time, to guarantee it working
118 later, rather than calling abort when it fails. also avoids
119 close-on-exec race issues after module load.
120 - #undef utime on win32, maybe this helps some reports of utime hangs.
121 - minor doc improvements.
122 - minor configure cleanups.
123 - use $Config{perllibs} instead of libs for configure. might help people
124 who didn't install all perl dependencies (might break things as well).
125
1264.54 Tue Aug 14 13:54:48 CEST 2018
127 - include sys/mkdev.h or sys/sysmacros.h if available.
128 - further tweaks to configure invocation for systems requiring --rpath.
129 - no longer rely on custom paths on win32 platforms.
130 - try to work around buggy PAGESIZE macro on solaris.
131
1324.53 Tue Aug 14 11:27:50 CEST 2018
133 - add $Config{libs} to LIBS for configure, to work around systems
134 with broken library dependencies (... openbsd).
135
1364.52 Sun Aug 12 08:09:45 CEST 2018
137 - config.h.in was missing in distribution.
138
1394.51 Sun Aug 12 07:24:14 CEST 2018
140 - complete rework of the autoconf framework: IO::AIO now uses its own
141 config.h, separate from libeio, and tries to test the actual perl
142 environment, not the standard system environment.
143 - provide nanosecond-accracy stat time accessors for both perl and IO::AIO
144 stat functions.
145 - removed non-portable C++ syntax from eio.c.
146 - try to fix readdir tests on cygwin spuriously failing.
147
1484.5 Wed Aug 1 00:23:55 CEST 2018
149 - aio_mtouch touch all pages as requested, not just the first page in most cases.
150 - new function: IO::AIO::mremap, linux-specific mremap, with constants MREMAP_MAYMOVE
151 and MREMAP_FIXED.
152 - add O_ACCMODE.
153 - add (undocumented) MSG_CMSG_CLOEXEC and SOCK_CLOEXEC constants.
154
1554.4 Tue Feb 20 07:54:12 CET 2018
156 - new aio_slurp request.
157 - add (experimental) IO::AIO::eventfd and timerfd* function.
158 - add (experimental) IO::AIO::get_fdlimit and IO::AIO::min_fdlimit.
159 - point out that aio_copy overwrites existing files.
160 - removed filesystem magic number table from aio_statvfs docs as
161 statvfs doesn't actually return this info at all (statfs does).
162 - add a bunch of (mostly linux-specific) constants for use in ioctls
163 (see aio_ioctl docs).
164 - treescan now has a proper manpage and useful --help output.
165 - new option --sync in treescan, to sync everything in a subtree.
166 - changed default for aio_msync flags to MSYNC_SYNC.
167 - document offset/length behaviour of mprotect/madvise.
168 - support linux's renameat2 (via aio_rename2).
169 - add aio_rename2, an aio_rename with flags.
170 - add F_DUPPFD_CLOEXEC, F_OFD_[SG]ETLKW? constants.
171 - add FALLOC_FL_INSERT_RANGE, FALLOC_FL_UNSHARE_RANGE.
172 - (libeio) use posix_close if available.
173 - (libeio) internal close() calls no longer disturb errno.
174 - add IO:AIO::FALLOC_FL_UNSHARE.
175 - update schmorp.h for removal of USE_SOCKETS_AS_HANDLES
176 and better eventfd detection.
177
1784.34 Sun May 1 19:18:24 CEST 2016
179 - def0.h was not properly generated during previous release, causing
180 compile errors on various platforms.
181 - major/minor were accidentally switched (reported by Alexander Lishenyuk).
182 - removed duplicate definition of MAP_HUGETLB, that was found due to
183 a bug in Perl::Tidy (testcase by alaska332@gmail.com).
184 - added (untested!) aio_fcntl, aio_ioctl requests.
185 - (libeio) names set via prctl are truncated to 15 chars + nul, not 16,
186 as manpages-dev originally claimed.
187
1884.33 Mon Jan 18 12:50:10 CET 2016
189 - add IO::AIO::pipe2 function.
190 - added support for FALLOC_FL_COLLAPSE_RANGE and FALLOC_FL_ZERO_RANGE
191 constants.
192 - added support for O_TMPFILE and O_PATH constants.
193 - added support for MAP_FIXED, MAP_GROWSDOWN,MAP_32BIT, MAP_HUGETLB, MAP_STACK
194 consdtants, whether they can be sensibly used or not.
195 - use NO_INIT where applicable.
196 - update libecb.
197 - added stability canary support.
198 - updated linux super magic table to 4.3.3.
199
2004.32 Wed Feb 11 20:32:11 CET 2015
201 - replace off_t by STRLEN where appropriate, should not result in
202 user-visible changes.
203 - update ecb.h for C11 compatibility.
204
2054.31 Tue Jun 3 03:29:27 CEST 2014
206 - work around more 5.20 bugs. backwards compatibility my ass.
207
2084.3 Fri Apr 11 06:22:38 CEST 2014
209 - perl5porters broke Async::Interrupt, BDB, EV, IO::AIO, OpenCL
210 without warning by switching the meaning of USE_SOCKETS_AS_HANDLES
211 in 5.18. What's so attractive about giving a shit about backwards
212 compatibility - I will never understand.
213
2144.2 Sat Jan 25 01:13:14 CET 2014
215 - aio_group could corrupt memory because it didn't restore
216 the stack after req_submit.
217 - be more careful on (e.g. permission) errors in bin/treescan.
218 - work around changes in ExtUtils::MakeMaker.
219 - (libeio) implement aio_realpath for win32.
220 - (xthread) work around compile time bugs in ptw32.
221 - added IO::AIO::pipesize.
222 - (libecb) insignificant update.
223
2244.19 Sun Jan 6 12:47:26 CET 2013
225 - avoid endless loop in fiemap with some XFS files.
226 - in aio_rename and aio_rmdir, specialcase the case of [$wd, "."]
227 and call rename/rmdir instead of renameat/unlinkat.
228
2294.18 Thu Oct 11 07:01:26 CEST 2012
230 - fix unintended xthread_create by intentionalising it :)
231
2324.17 Thu Oct 11 05:19:47 CEST 2012
233 - rename aio_fallocate to aio_allocate, to match documentation.
234 - add list of linux fsid values to aio_statvfs docs.
235 - work around a bug in btrfs' FIEMAP ioctl implementation.
236 - work around AIX bug: statvfs.f_fsid is a struct, not unsigned long
237 as per unix spec.
238
2394.16 Tue Aug 14 05:39:03 CEST 2012
240 - aio_statvfs was wromgly marked for wd emulation, causing
241 it to malfunction for paths.
242 - fix a crash in aio_fiemap, when used on ranges without any
243 extents.
244 - work around linux kernel bug (at least in 3.2): kernel might
245 trash fiemap input arguments.
246 - work around linux kernel bug (at least in 3.2): kernel does not
247 set FIEMAP_EXTENT_LAST on last segment.
248 - work around linux kernel bug (at least in 3.2): kernel silently
249 truncates segment count if a file.
250 - make fh argument of IO::AIO::mmap optional, also add mmap/munmap
251 to quick overview.
252 - splice can corrupt data.
253 - (libeio) remove pread/pwrite emulation.
254 - do not grow mmaped scalars in aio_read.
255 - add FALLOC_FL_PUNCH_HOLE and document fallocate.
256 - provide pread/pwrite for win32, making it link again on native win32.
257
2584.15 Tue Apr 10 06:59:00 CEST 2012
259 - always include linux/types.h for fiemap, for compatibility to
260 ancient systems (Paul Howarth).
261 - experimental support for IO::AIO::splice and ::tee (no aio_...).
262 - provide SEEK_HOLE and SEEK_DATA, if available.
263 - work around (again!) an immensely stupid bug in RHEL, defining
264 autoconf macros in linux system headers (analysed by Paul Howarth).
265
2664.14 Sat Apr 7 02:45:18 CEST 2012
267 - fix stat structure usage on windows, which caused bogus stat results.
268 - (libeio) make readahead emulation behave more like actual readahead by never failing.
269 - new request aio_seek.
270 - new request aio_fiemap.
271 - autogenerate the #ifdef/#define 0 blocks for symbols we export.
272
2734.12 Fri Dec 30 08:51:25 CET 2011
274 - realpath would return a random value if the name was too long,
275 instead of -1.
276 - port to c89.
277
2784.11 Mon Oct 10 00:24:11 CEST 2011
279 - libeio didn't compile on !linux (Paul Howarth).
280
2814.1 Sun Oct 9 10:24:11 CEST 2011
282 - IO::AIO did access uninitialised memory on unsuccessful stats.
283 - (libeio) added syncfs syscall wrapper.
284 - (libeio) set thread name on linux (ps -L/Hcx, top, gdb).
285 - (libeio) support multiple indepenent working directories.
286 - applied speling corrections by Nicholas Bamber.
287 - tune treescan #threads and #outstanding requests a bit.
288 - reduce the number of file descriptors in use at any one time
289 in treescan, to avoid running out of them (and using too much ram).
290 - take advantage of working directoriy abstractions
291 in aio_scandir and treescan.
292 - reduce compiled size by ~10% by not inlining some key functionality.
293 - added --progress switch to treescan.
294
2954.0 Mon Jul 18 05:01:10 CEST 2011
296 - INCOMPATIBLE CHANGE: fork is no longer supported (indeed, it never was),
297 see FORK BEHAVIOUR in manpage for details.
298 - passes testsuite on win32 now and may actually work
299 (activestate 5.10.1 / MSVC6, YMMV).
300 - (libeio) fix a deadlock where a wakeup signal could be missed when
301 a timeout occured at the same time.
302 - (libeio) added realpath.
303 - (libeio) added fallocate.
304 - (libeio) disabling sendfile on darwin unfortunately broke the emulation.
305 - (libeio) do not acquire any locks when forking.
306 - (libeio) use fewer time() syscalls when waiting for new requests.
307
3083.93 Wed Jun 29 23:44:18 CEST 2011
309 - ECB.H WAS MISSING.
310
3113.92 Wed Jun 29 14:45:41 CEST 2011
312 - ecb.h was missing.
313
3143.91 Wed Jun 29 13:24:42 CEST 2011
315 - (libeio) work around a Linux (and likely FreeBSD and other
316 kernels) bug where sendfile would not transfer all the requested
317 bytes on large transfers, using a heuristic.
318 - buggy sendfile caused aio_move/copy to sometimes fail for big
319 files (fortunately it checks that the whole file has been
320 transferred...)
321 - use libecb for higher performance and higher portability.
322 - (libeio) disable sendfile on darwin, it's too broken.
323 - disable fork tests on !linux, as only linux supports mixing
324 pthread and fork in perl.
325 - document the fact that fork doesn't work anymore when using
326 this module, on anything !GNU/Linux.
327 - increase timeout in t/04_fork.t, as too many CPAN-tester setups
328 run on a 0.1MHz cpu. Or so.
329
3303.9 Fri May 27 02:43:47 CEST 2011
331 - (libeio) fix memory corruption in aio_readdirx for the flags
332 combination READDIR_STAT_ORDER | READDIR_DIRS_FIRST.
333 - add lots of newer POSIX and GNU/Linux-specific open
334 flags.
335
3363.8 Sun Mar 27 12:25:33 CEST 2011
337 - use nonstandard but maybe-working-on-bsd fork technique.
338 - support a max_idle value of 0.
339 - support setting of idle timeout value (IO::AIO::idle_timeout).
340
3413.72 Fri Feb 11 04:25:38 CET 2011
342 - use _POSIX_MEMLOCK_RANGE to detect mlock/munlock.
343 - aio_mknod always used a dev_t value of 0.
344 - new treescan option: --grep.
345 - add more S_IF macros, and major/minor/makedev "macros".
346
3473.71 Thu Dec 30 08:18:46 CET 2010
348 - the numerical result value passed to callbacks did not stringify
349 correctly, due to internal reuse and failure to reset the sv flags.
350 - actually test for posix_[mf]advise, as at least uClibc defines
351 _POSIX_ADVISORY_INFO without actually having any of the required
352 funcitonality. ugh.
353
3543.7 Mon Nov 1 23:00:34 CET 2010
355 - implement/add madvise, mmap, munmap, aio_mlockall, munlockall,
356 aio_mlock, munlock, msync and mtouch to @EXPORT_OK.
357 - document the sad state of affairs w.r.t. pthread on many bsds.
358 - do not enable mmap on systems without _POSIX_MAPPED_FILES
359 (openbsd 4.8).
360 - do not leak memory in IO::AIO::mmap when the scalar already
361 had string-data.
362 - add O_RDWR, O_APPEND and O_EXCL symbols and semi-document
363 them.
364 - cache the result IV, for a minor speedup in the common case.
365 - croak when an mmapped-scalar changes location, to detect
366 user-errors better.
367 - fix aio_readlink prototype.
368
3693.65 Wed Mar 31 02:45:05 CEST 2010
370 - actually use PATH_MAX instead of NAME_MAX for readlink, as to not
371 cut off long pathnames in aio_readlink (based on patch by
372 Rasmus Andersson).
373 - a double fork partially killed the event pipe (great testcase
374 by dormando). affects IO::AIO, BDB and Async::Interrupt.
375 - suck steve's dick and rename our symbols to avoid colliding
376 with nonstandard identifier spam on the broken os x pseudo-os.
377 affects IO::AIO and BDB.
378
3793.6 Mon Jan 11 00:43:39 CET 2010
380 - (libeio) more fixes for the freebsd/apple sendfile - broken by
381 manpage standards, but apparently correct accoridng to actual
382 kernel sources.
383 - add IO::AIO::mmap/munmap support.
384 - add IO::AIO::m(un)lockall support.
385 - clean up manpage.
386
3873.5 Thu Jan 7 21:25:04 CET 2010
388 - (liebio) fix freebsd sendfile (Vanilla Hsu).
389 - (libeio) also fix darwin sendfile that suffered from a similar bug.
390 - add aio_statvfs as interface to statvfs/fstatvfs.
391 - work around buggy symlink() on cygwin in the testsuite.
392 - wtf. freebsd-8.0 actually passes the testsuite! I knew
393 they could implement fork and semaphores one day! cheers!
394
3953.4 Sat Jan 2 15:13:04 CET 2010
396 - (libeio) max_poll_time was not properly converted to ticks.
397 - clarify cancel_subs description.
398 - IO::AIO::sendfile did not actually return the return value
399 from the sendfile call.
400 - implement aio_msync, aio_mtouch.
401 - (libeio) tentatively support darwin in sendfile.
402
4033.31 Thu Nov 12 02:14:29 CET 2009
404 - fix result status documentation of aio_copy, aio_move.
405 - speed up object creation considerably by avoiding
406 hash lookups.
407
4083.3 Wed Aug 5 13:52:58 CEST 2009
10 - use common::sense. 409 - use common::sense.
11 - use common schmorp.h header. 410 - use common schmorp.h header.
12 - allow integers (file descriptors) in addition to file handles. 411 - allow integers (file descriptors) in addition to file handles.
412 - take advantage of linux' eventfd (but it seems slower on smp?).
413 - use poll not select on posix platforms.
13 414
143.261 Wed Jul 1 10:11:51 CEST 2009 4153.261 Wed Jul 1 10:11:51 CEST 2009
15 - more OS X workarounds (patch by Tokuhiro Matsuno). 416 - more 0S X workarounds (patch by Tokuhiro Matsuno).
16 417
173.26 Tue Jun 30 09:33:26 CEST 2009 4183.26 Tue Jun 30 09:33:26 CEST 2009
18 - os x of course claims posix 2008 but lacks posix_fadvise. try to work 419 - 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 420 try to work around this horribly broken OS in a somewhat hackish
20 other os's too. 421 way. might help other os's too.
21 422
223.25 Sat Jun 27 05:18:26 CEST 2009 4233.25 Sat Jun 27 05:18:26 CEST 2009
23 - added IO::AIO::fadvise and IO::AIO::sendfile. 424 - added IO::AIO::fadvise and IO::AIO::sendfile.
24 - (libeio) replaced quicksort+insertion sort by a tuned radix 425 - (libeio) replaced quicksort+insertion sort by a tuned radix
25 sort + insertion sort, resulting in comparable runtime (usually 426 sort + insertion sort, resulting in comparable runtime (usually

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