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Comparing IO-AIO/Changes (file contents):
Revision 1.186 by root, Sun Jun 7 18:31:18 2009 UTC vs.
Revision 1.401 by root, Tue Jul 27 18:46:06 2021 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.?
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
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
50
514.76 Tue Jul 27 20:45:01 CEST 2021
52 - add autoconf test for siginfo_t, which is, of course, not
53 available on windows (reported by Peter Petky).
54 - disable syscalls on solaris, as perl seems to provide an
55 incompatible syscall prototype that clashes with sys/syscall.h.
56 - add MAP_FIXED_NOREPLACE, MAP_SHARED_VALIDATE, MAP_SYNC and
57 MAP_UNINITIALIZED.
58
594.75 Wed Dec 30 08:44:55 CET 2020
60 - removed leftover debug output from treescan.
61 - added (but not documented) waitid-P_*, FSPICK_*, FSOPEN_*,
62 FSCONFIG_*, MOUNT_ATTR_* constants.
63
644.74 Tue Dec 29 16:19:28 CET 2020
65 - added pidfd_open, pidfd_getfd and pidfd_send_signal functions.
66 - rework bin/treescan to avoid recursion. This fixes two bugs
67 where a deep directory traversal or a lot of command line
68 arguments could cause it to crash.
69 - added (but not documented) open_tree, AT_* and move_mount flags.
70 - support defining syscall numbers in gendef0.
71
724.73 Fri Dec 4 02:08:37 CET 2020
73 - def0.h was not uptodate, running into musl problems
74 (reported by B Fraser).
75 - IO::AIO::splice and IO::AIO::tee didn't properly return
76 64 bit values.
77 - added IO::AIO::accept4.
78 - add various F_SEAL related fcntl constants.
79 - removed experimental marker for fdlimit functions.
80 - fiemap now includes the last segment even if it overflows
81 the end offset, which is arguably the correct behaviour.
82
834.72 Wed Apr 3 04:56:03 CEST 2019
84 - (libeio) if fd 0 is available do not use it for aio_wd, as it
85 collides with IO::AIO::CWD.
86 - added IO::AIO::memfd_create.
87 - correctly include <sys/uio.h> in the vmsplice test.
88 - reduce codesize by ~7% on amd64 by declaring more functions
89 as noinline.
90 - documentation fixes and updates.
91 - experimental and undocumented preliminary support for synchronous statx.
92
934.71 Sun Mar 10 13:09:26 CET 2019
94 - due to an error in the linux manpages, the configure tests
95 for readahead, sync_file_range, splice etc. failed. This has been fixed.
96
974.7 Mon Mar 4 11:28:13 CET 2019
98 - majorly speed up scandir for the very special case of a non-POSIX
99 filesystem that nevertheless reports valid dt_type information.
100 The only known filesystem of this type is currently btrfs, which
101 didn't get it's act together to implement POSIX semantics in all
102 these years, and I am tired of waiting.
103 - add IO::AIO::MCL_ONFAULT for mlockall, add IO::AIO::mlockall.
104 - neither sys/mkdev.h nor sys/sysmacros.h were included, even when they
105 were detected by autoconf.
106
1074.6 Sat Aug 25 21:58:36 CEST 2018
108 - add st_btime, st_btimesec, st_btimensec and st_gen accessors,
109 mostly for bsds which expose birthtime and st_gen members (netbsd, freebsd
110 but only st_gen on openbsd because they compiled their perl without support
111 for birthtimes).
112 - fix madvise and munlock to properly support negative offsets.
113 - allocate fd for the aio_close at boot time, to guarantee it working
114 later, rather than calling abort when it fails. also avoids
115 close-on-exec race issues after module load.
116 - #undef utime on win32, maybe this helps some reports of utime hangs.
117 - minor doc improvements.
118 - minor configure cleanups.
119 - use $Config{perllibs} instead of libs for configure. might help people
120 who didn't install all perl dependencies (might break things as well).
121
1224.54 Tue Aug 14 13:54:48 CEST 2018
123 - include sys/mkdev.h or sys/sysmacros.h if available.
124 - further tweaks to configure invocation for systems requiring --rpath.
125 - no longer rely on custom paths on win32 platforms.
126 - try to work around buggy PAGESIZE macro on solaris.
127
1284.53 Tue Aug 14 11:27:50 CEST 2018
129 - add $Config{libs} to LIBS for configure, to work around systems
130 with broken library dependencies (... openbsd).
131
1324.52 Sun Aug 12 08:09:45 CEST 2018
133 - config.h.in was missing in distribution.
134
1354.51 Sun Aug 12 07:24:14 CEST 2018
136 - complete rework of the autoconf framework: IO::AIO now uses its own
137 config.h, separate from libeio, and tries to test the actual perl
138 environment, not the standard system environment.
139 - provide nanosecond-accracy stat time accessors for both perl and IO::AIO
140 stat functions.
141 - removed non-portable C++ syntax from eio.c.
142 - try to fix readdir tests on cygwin spuriously failing.
143
1444.5 Wed Aug 1 00:23:55 CEST 2018
145 - aio_mtouch touch all pages as requested, not just the first page in most cases.
146 - new function: IO::AIO::mremap, linux-specific mremap, with constants MREMAP_MAYMOVE
147 and MREMAP_FIXED.
148 - add O_ACCMODE.
149 - add (undocumented) MSG_CMSG_CLOEXEC and SOCK_CLOEXEC constants.
150
1514.4 Tue Feb 20 07:54:12 CET 2018
152 - new aio_slurp request.
153 - add (experimental) IO::AIO::eventfd and timerfd* function.
154 - add (experimental) IO::AIO::get_fdlimit and IO::AIO::min_fdlimit.
155 - point out that aio_copy overwrites existing files.
156 - removed filesystem magic number table from aio_statvfs docs as
157 statvfs doesn't actually return this info at all (statfs does).
158 - add a bunch of (mostly linux-specific) constants for use in ioctls
159 (see aio_ioctl docs).
160 - treescan now has a proper manpage and useful --help output.
161 - new option --sync in treescan, to sync everything in a subtree.
162 - changed default for aio_msync flags to MSYNC_SYNC.
163 - document offset/length behaviour of mprotect/madvise.
164 - support linux's renameat2 (via aio_rename2).
165 - add aio_rename2, an aio_rename with flags.
166 - add F_DUPPFD_CLOEXEC, F_OFD_[SG]ETLKW? constants.
167 - add FALLOC_FL_INSERT_RANGE, FALLOC_FL_UNSHARE_RANGE.
168 - (libeio) use posix_close if available.
169 - (libeio) internal close() calls no longer disturb errno.
170 - add IO:AIO::FALLOC_FL_UNSHARE.
171 - update schmorp.h for removal of USE_SOCKETS_AS_HANDLES
172 and better eventfd detection.
173
1744.34 Sun May 1 19:18:24 CEST 2016
175 - def0.h was not properly generated during previous release, causing
176 compile errors on various platforms.
177 - major/minor were accidentally switched (reported by Alexander Lishenyuk).
178 - removed duplicate definition of MAP_HUGETLB, that was found due to
179 a bug in Perl::Tidy (testcase by alaska332@gmail.com).
180 - added (untested!) aio_fcntl, aio_ioctl requests.
181 - (libeio) names set via prctl are truncated to 15 chars + nul, not 16,
182 as manpages-dev originally claimed.
183
1844.33 Mon Jan 18 12:50:10 CET 2016
185 - add IO::AIO::pipe2 function.
186 - added support for FALLOC_FL_COLLAPSE_RANGE and FALLOC_FL_ZERO_RANGE
187 constants.
188 - added support for O_TMPFILE and O_PATH constants.
189 - added support for MAP_FIXED, MAP_GROWSDOWN,MAP_32BIT, MAP_HUGETLB, MAP_STACK
190 consdtants, whether they can be sensibly used or not.
191 - use NO_INIT where applicable.
192 - update libecb.
193 - added stability canary support.
194 - updated linux super magic table to 4.3.3.
195
1964.32 Wed Feb 11 20:32:11 CET 2015
197 - replace off_t by STRLEN where appropriate, should not result in
198 user-visible changes.
199 - update ecb.h for C11 compatibility.
200
2014.31 Tue Jun 3 03:29:27 CEST 2014
202 - work around more 5.20 bugs. backwards compatibility my ass.
203
2044.3 Fri Apr 11 06:22:38 CEST 2014
205 - perl5porters broke Async::Interrupt, BDB, EV, IO::AIO, OpenCL
206 without warning by switching the meaning of USE_SOCKETS_AS_HANDLES
207 in 5.18. What's so attractive about giving a shit about backwards
208 compatibility - I will never understand.
209
2104.2 Sat Jan 25 01:13:14 CET 2014
211 - aio_group could corrupt memory because it didn't restore
212 the stack after req_submit.
213 - be more careful on (e.g. permission) errors in bin/treescan.
214 - work around changes in ExtUtils::MakeMaker.
215 - (libeio) implement aio_realpath for win32.
216 - (xthread) work around compile time bugs in ptw32.
217 - added IO::AIO::pipesize.
218 - (libecb) insignificant update.
219
2204.19 Sun Jan 6 12:47:26 CET 2013
221 - avoid endless loop in fiemap with some XFS files.
222 - in aio_rename and aio_rmdir, specialcase the case of [$wd, "."]
223 and call rename/rmdir instead of renameat/unlinkat.
224
2254.18 Thu Oct 11 07:01:26 CEST 2012
226 - fix unintended xthread_create by intentionalising it :)
227
2284.17 Thu Oct 11 05:19:47 CEST 2012
229 - rename aio_fallocate to aio_allocate, to match documentation.
230 - add list of linux fsid values to aio_statvfs docs.
231 - work around a bug in btrfs' FIEMAP ioctl implementation.
232 - work around AIX bug: statvfs.f_fsid is a struct, not unsigned long
233 as per unix spec.
234
2354.16 Tue Aug 14 05:39:03 CEST 2012
236 - aio_statvfs was wromgly marked for wd emulation, causing
237 it to malfunction for paths.
238 - fix a crash in aio_fiemap, when used on ranges without any
239 extents.
240 - work around linux kernel bug (at least in 3.2): kernel might
241 trash fiemap input arguments.
242 - work around linux kernel bug (at least in 3.2): kernel does not
243 set FIEMAP_EXTENT_LAST on last segment.
244 - work around linux kernel bug (at least in 3.2): kernel silently
245 truncates segment count if a file.
246 - make fh argument of IO::AIO::mmap optional, also add mmap/munmap
247 to quick overview.
248 - splice can corrupt data.
249 - (libeio) remove pread/pwrite emulation.
250 - do not grow mmaped scalars in aio_read.
251 - add FALLOC_FL_PUNCH_HOLE and document fallocate.
252 - provide pread/pwrite for win32, making it link again on native win32.
253
2544.15 Tue Apr 10 06:59:00 CEST 2012
255 - always include linux/types.h for fiemap, for compatibility to
256 ancient systems (Paul Howarth).
257 - experimental support for IO::AIO::splice and ::tee (no aio_...).
258 - provide SEEK_HOLE and SEEK_DATA, if available.
259 - work around (again!) an immensely stupid bug in RHEL, defining
260 autoconf macros in linux system headers (analysed by Paul Howarth).
261
2624.14 Sat Apr 7 02:45:18 CEST 2012
263 - fix stat structure usage on windows, which caused bogus stat results.
264 - (libeio) make readahead emulation behave more like actual readahead by never failing.
265 - new request aio_seek.
266 - new request aio_fiemap.
267 - autogenerate the #ifdef/#define 0 blocks for symbols we export.
268
2694.12 Fri Dec 30 08:51:25 CET 2011
270 - realpath would return a random value if the name was too long,
271 instead of -1.
272 - port to c89.
273
2744.11 Mon Oct 10 00:24:11 CEST 2011
275 - libeio didn't compile on !linux (Paul Howarth).
276
2774.1 Sun Oct 9 10:24:11 CEST 2011
278 - IO::AIO did access uninitialised memory on unsuccessful stats.
279 - (libeio) added syncfs syscall wrapper.
280 - (libeio) set thread name on linux (ps -L/Hcx, top, gdb).
281 - (libeio) support multiple indepenent working directories.
282 - applied speling corrections by Nicholas Bamber.
283 - tune treescan #threads and #outstanding requests a bit.
284 - reduce the number of file descriptors in use at any one time
285 in treescan, to avoid running out of them (and using too much ram).
286 - take advantage of working directoriy abstractions
287 in aio_scandir and treescan.
288 - reduce compiled size by ~10% by not inlining some key functionality.
289 - added --progress switch to treescan.
290
2914.0 Mon Jul 18 05:01:10 CEST 2011
292 - INCOMPATIBLE CHANGE: fork is no longer supported (indeed, it never was),
293 see FORK BEHAVIOUR in manpage for details.
294 - passes testsuite on win32 now and may actually work
295 (activestate 5.10.1 / MSVC6, YMMV).
296 - (libeio) fix a deadlock where a wakeup signal could be missed when
297 a timeout occured at the same time.
298 - (libeio) added realpath.
299 - (libeio) added fallocate.
300 - (libeio) disabling sendfile on darwin unfortunately broke the emulation.
301 - (libeio) do not acquire any locks when forking.
302 - (libeio) use fewer time() syscalls when waiting for new requests.
303
3043.93 Wed Jun 29 23:44:18 CEST 2011
305 - ECB.H WAS MISSING.
306
3073.92 Wed Jun 29 14:45:41 CEST 2011
308 - ecb.h was missing.
309
3103.91 Wed Jun 29 13:24:42 CEST 2011
311 - (libeio) work around a Linux (and likely FreeBSD and other
312 kernels) bug where sendfile would not transfer all the requested
313 bytes on large transfers, using a heuristic.
314 - buggy sendfile caused aio_move/copy to sometimes fail for big
315 files (fortunately it checks that the whole file has been
316 transferred...)
317 - use libecb for higher performance and higher portability.
318 - (libeio) disable sendfile on darwin, it's too broken.
319 - disable fork tests on !linux, as only linux supports mixing
320 pthread and fork in perl.
321 - document the fact that fork doesn't work anymore when using
322 this module, on anything !GNU/Linux.
323 - increase timeout in t/04_fork.t, as too many CPAN-tester setups
324 run on a 0.1MHz cpu. Or so.
325
3263.9 Fri May 27 02:43:47 CEST 2011
327 - (libeio) fix memory corruption in aio_readdirx for the flags
328 combination READDIR_STAT_ORDER | READDIR_DIRS_FIRST.
329 - add lots of newer POSIX and GNU/Linux-specific open
330 flags.
331
3323.8 Sun Mar 27 12:25:33 CEST 2011
333 - use nonstandard but maybe-working-on-bsd fork technique.
334 - support a max_idle value of 0.
335 - support setting of idle timeout value (IO::AIO::idle_timeout).
336
3373.72 Fri Feb 11 04:25:38 CET 2011
338 - use _POSIX_MEMLOCK_RANGE to detect mlock/munlock.
339 - aio_mknod always used a dev_t value of 0.
340 - new treescan option: --grep.
341 - add more S_IF macros, and major/minor/makedev "macros".
342
3433.71 Thu Dec 30 08:18:46 CET 2010
344 - the numerical result value passed to callbacks did not stringify
345 correctly, due to internal reuse and failure to reset the sv flags.
346 - actually test for posix_[mf]advise, as at least uClibc defines
347 _POSIX_ADVISORY_INFO without actually having any of the required
348 funcitonality. ugh.
349
3503.7 Mon Nov 1 23:00:34 CET 2010
351 - implement/add madvise, mmap, munmap, aio_mlockall, munlockall,
352 aio_mlock, munlock, msync and mtouch to @EXPORT_OK.
353 - document the sad state of affairs w.r.t. pthread on many bsds.
354 - do not enable mmap on systems without _POSIX_MAPPED_FILES
355 (openbsd 4.8).
356 - do not leak memory in IO::AIO::mmap when the scalar already
357 had string-data.
358 - add O_RDWR, O_APPEND and O_EXCL symbols and semi-document
359 them.
360 - cache the result IV, for a minor speedup in the common case.
361 - croak when an mmapped-scalar changes location, to detect
362 user-errors better.
363 - fix aio_readlink prototype.
364
3653.65 Wed Mar 31 02:45:05 CEST 2010
366 - actually use PATH_MAX instead of NAME_MAX for readlink, as to not
367 cut off long pathnames in aio_readlink (based on patch by
368 Rasmus Andersson).
369 - a double fork partially killed the event pipe (great testcase
370 by dormando). affects IO::AIO, BDB and Async::Interrupt.
371 - suck steve's dick and rename our symbols to avoid colliding
372 with nonstandard identifier spam on the broken os x pseudo-os.
373 affects IO::AIO and BDB.
374
3753.6 Mon Jan 11 00:43:39 CET 2010
376 - (libeio) more fixes for the freebsd/apple sendfile - broken by
377 manpage standards, but apparently correct accoridng to actual
378 kernel sources.
379 - add IO::AIO::mmap/munmap support.
380 - add IO::AIO::m(un)lockall support.
381 - clean up manpage.
382
3833.5 Thu Jan 7 21:25:04 CET 2010
384 - (liebio) fix freebsd sendfile (Vanilla Hsu).
385 - (libeio) also fix darwin sendfile that suffered from a similar bug.
386 - add aio_statvfs as interface to statvfs/fstatvfs.
387 - work around buggy symlink() on cygwin in the testsuite.
388 - wtf. freebsd-8.0 actually passes the testsuite! I knew
389 they could implement fork and semaphores one day! cheers!
390
3913.4 Sat Jan 2 15:13:04 CET 2010
392 - (libeio) max_poll_time was not properly converted to ticks.
393 - clarify cancel_subs description.
394 - IO::AIO::sendfile did not actually return the return value
395 from the sendfile call.
396 - implement aio_msync, aio_mtouch.
397 - (libeio) tentatively support darwin in sendfile.
398
3993.31 Thu Nov 12 02:14:29 CET 2009
400 - fix result status documentation of aio_copy, aio_move.
401 - speed up object creation considerably by avoiding
402 hash lookups.
403
4043.3 Wed Aug 5 13:52:58 CEST 2009
405 - use common::sense.
406 - use common schmorp.h header.
407 - allow integers (file descriptors) in addition to file handles.
408 - take advantage of linux' eventfd (but it seems slower on smp?).
409 - use poll not select on posix platforms.
410
4113.261 Wed Jul 1 10:11:51 CEST 2009
412 - more 0S X workarounds (patch by Tokuhiro Matsuno).
413
4143.26 Tue Jun 30 09:33:26 CEST 2009
415 - 0S X of course claims to be posix 2008 but lacks posix_fadvise.
416 try to work around this horribly broken OS in a somewhat hackish
417 way. might help other os's too.
418
4193.25 Sat Jun 27 05:18:26 CEST 2009
420 - added IO::AIO::fadvise and IO::AIO::sendfile.
421 - (libeio) replaced quicksort+insertion sort by a tuned radix
422 sort + insertion sort, resulting in comparable runtime (usually
423 faster) to the old version, but without any ill side effects on
424 degenerated (for quicksort) data.
425 - (libeio) correctly sort dirs by inodes if we have perfect type
426 knowledge and DIRS_FIRST is used.
427 - (libeio) internally the wrong DT_* constants were used, but no
428 known system has differing EIO_DT_*/DT_* values, so not an issue.
429 - removed a (harmless) assert that was left over on the code
430 but should not have been.
431 - use more correct types (change IO length from IV to VAL64,
432 which makes a difference on systems without 64 bit perls).
433
4343.23 Sat Jun 13 16:57:58 CEST 2009
435 - fix off-by-one bug in aio_readdir that was introduced in the
436 rushed 3.22 release.
437
4383.22 Sat Jun 13 15:32:40 CEST 2009
439 - speed up readdirx sort algorithm slightly.
440 - bin/treescan was missing from distro tarball.
441
4423.21 Fri Jun 12 18:45:53 CEST 2009
443 - new options --dirs and --files for treescan.
444 - install bin/treescan by default.
445 - (libeio) aio_readdir can now be cancelled while executing.
446 - fix a printf format string for 64 bit systems (could lead
447 to problems on big endian 64 bit systems).
448 - do not use qsort() but our own algorithm: glibc initialises
449 the whole locale and I/O subsystem inside qsort, causing
450 a stack overflow on 32 bit machines. The new sort uses much less
451 stack and is more than twice as fast in typical situations.
8 452
93.2 Sun Jun 7 20:30:05 CEST 2009 4533.2 Sun Jun 7 20:30:05 CEST 2009
10 - (libeio) pwrite emulation was even more flawed than intended and did 454 - (libeio) pwrite emulation was even more flawed than intended and did
11 not restore the file offset. 455 not restore the file offset.
12 - add aio_readdirx, which can return inode and filetype and sort 456 - add aio_readdirx, which can return inode and filetype and sort

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