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Comparing IO-AIO/Changes (file contents):
Revision 1.188 by root, Sun Jun 7 22:37:54 2009 UTC vs.
Revision 1.400 by root, Tue Jul 27 07:58:37 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/
8 23
24TODO: rewrite rmtree et al. to support working directories (also speed them up)
25TODO: maybe IO::AIO leaks fds when requests are cancelled? maybe initialise result to -1?
26TODO: aio_wd should use O_PATH on linux, due to lacking O_SEARCH (http://comments.gmane.org/gmane.linux.file-systems/33611)
27 http://www.openwall.com/lists/musl/2013/02/23/4
28TODO: FIDEDUPERANGE, file_ioctl.c
29TODO: mincore
30TODO: SOCK_CLOEXEc etc.
31TODO: unlinkat flags, linkat flags, statat, renameat2 flags
32TODO: https://kernelnewbies.org/Linux_4.11
33TODO: define useful rules for [[$wd, $path], $path] &c and implement them
34TODO: https://github.com/coreutils/coreutils/blob/master/src/stat.c maybe IO::AIO::FSID
35TODO: mlock2, MLOCK_ONFAULT
36TODO: dup3, pipe2, accept4
37TODO: dump config.log when automated testign and configure fails
38TODO: ns time resolution in utime
39TODO: statx
40TODO: aio_fchdir/chdir? emulate chdirat?
41TODO: rt-4.0.18-20109-1573826674-1229.126277-5-0@rt.cpan.org
42TODO: aio_splice, aio_tee
43TODO: copy_file_range
44TODO: write more abpout the thread model, maybe bump some defaults?
45TODO: io_uring, but it's so broken :/
46TODO: allow import of fds as aio_wd
47TODO: close_range
48TODO: move_mount, open_tree
49TODO: pidfd_* not protected and autodetected - fails to compile on windows e.g.
50
51 - add autoconf test for siginfo_t, which is, of course, not
52 working on windows (reported by Peter Petky).
53 - disable syscalls on solaris, as perl seems to provide an
54 incompatible syscall prototype that clashes with sys/syscall.h.
55 - add MAP_FIXED_NOREPLACE, MAP_SHARED_VALIDATE, MAP_SYNC and
56 MAP_UNINITIALIZED.
57
584.75 Wed Dec 30 08:44:55 CET 2020
59 - removed leftover debug output from treescan.
60 - added (but not documented) waitid-P_*, FSPICK_*, FSOPEN_*,
61 FSCONFIG_*, MOUNT_ATTR_* constants.
62
634.74 Tue Dec 29 16:19:28 CET 2020
64 - added pidfd_open, pidfd_getfd and pidfd_send_signal functions.
65 - rework bin/treescan to avoid recursion. This fixes two bugs
66 where a deep directory traversal or a lot of command line
67 arguments could cause it to crash.
68 - added (but not documented) open_tree, AT_* and move_mount flags.
69 - support defining syscall numbers in gendef0.
70
714.73 Fri Dec 4 02:08:37 CET 2020
72 - def0.h was not uptodate, running into musl problems
73 (reported by B Fraser).
74 - IO::AIO::splice and IO::AIO::tee didn't properly return
75 64 bit values.
76 - added IO::AIO::accept4.
77 - add various F_SEAL related fcntl constants.
78 - removed experimental marker for fdlimit functions.
79 - fiemap now includes the last segment even if it overflows
80 the end offset, which is arguably the correct behaviour.
81
824.72 Wed Apr 3 04:56:03 CEST 2019
83 - (libeio) if fd 0 is available do not use it for aio_wd, as it
84 collides with IO::AIO::CWD.
85 - added IO::AIO::memfd_create.
86 - correctly include <sys/uio.h> in the vmsplice test.
87 - reduce codesize by ~7% on amd64 by declaring more functions
88 as noinline.
89 - documentation fixes and updates.
90 - experimental and undocumented preliminary support for synchronous statx.
91
924.71 Sun Mar 10 13:09:26 CET 2019
93 - due to an error in the linux manpages, the configure tests
94 for readahead, sync_file_range, splice etc. failed. This has been fixed.
95
964.7 Mon Mar 4 11:28:13 CET 2019
97 - majorly speed up scandir for the very special case of a non-POSIX
98 filesystem that nevertheless reports valid dt_type information.
99 The only known filesystem of this type is currently btrfs, which
100 didn't get it's act together to implement POSIX semantics in all
101 these years, and I am tired of waiting.
102 - add IO::AIO::MCL_ONFAULT for mlockall, add IO::AIO::mlockall.
103 - neither sys/mkdev.h nor sys/sysmacros.h were included, even when they
104 were detected by autoconf.
105
1064.6 Sat Aug 25 21:58:36 CEST 2018
107 - add st_btime, st_btimesec, st_btimensec and st_gen accessors,
108 mostly for bsds which expose birthtime and st_gen members (netbsd, freebsd
109 but only st_gen on openbsd because they compiled their perl without support
110 for birthtimes).
111 - fix madvise and munlock to properly support negative offsets.
112 - allocate fd for the aio_close at boot time, to guarantee it working
113 later, rather than calling abort when it fails. also avoids
114 close-on-exec race issues after module load.
115 - #undef utime on win32, maybe this helps some reports of utime hangs.
116 - minor doc improvements.
117 - minor configure cleanups.
118 - use $Config{perllibs} instead of libs for configure. might help people
119 who didn't install all perl dependencies (might break things as well).
120
1214.54 Tue Aug 14 13:54:48 CEST 2018
122 - include sys/mkdev.h or sys/sysmacros.h if available.
123 - further tweaks to configure invocation for systems requiring --rpath.
124 - no longer rely on custom paths on win32 platforms.
125 - try to work around buggy PAGESIZE macro on solaris.
126
1274.53 Tue Aug 14 11:27:50 CEST 2018
128 - add $Config{libs} to LIBS for configure, to work around systems
129 with broken library dependencies (... openbsd).
130
1314.52 Sun Aug 12 08:09:45 CEST 2018
132 - config.h.in was missing in distribution.
133
1344.51 Sun Aug 12 07:24:14 CEST 2018
135 - complete rework of the autoconf framework: IO::AIO now uses its own
136 config.h, separate from libeio, and tries to test the actual perl
137 environment, not the standard system environment.
138 - provide nanosecond-accracy stat time accessors for both perl and IO::AIO
139 stat functions.
140 - removed non-portable C++ syntax from eio.c.
141 - try to fix readdir tests on cygwin spuriously failing.
142
1434.5 Wed Aug 1 00:23:55 CEST 2018
144 - aio_mtouch touch all pages as requested, not just the first page in most cases.
145 - new function: IO::AIO::mremap, linux-specific mremap, with constants MREMAP_MAYMOVE
146 and MREMAP_FIXED.
147 - add O_ACCMODE.
148 - add (undocumented) MSG_CMSG_CLOEXEC and SOCK_CLOEXEC constants.
149
1504.4 Tue Feb 20 07:54:12 CET 2018
151 - new aio_slurp request.
152 - add (experimental) IO::AIO::eventfd and timerfd* function.
153 - add (experimental) IO::AIO::get_fdlimit and IO::AIO::min_fdlimit.
154 - point out that aio_copy overwrites existing files.
155 - removed filesystem magic number table from aio_statvfs docs as
156 statvfs doesn't actually return this info at all (statfs does).
157 - add a bunch of (mostly linux-specific) constants for use in ioctls
158 (see aio_ioctl docs).
159 - treescan now has a proper manpage and useful --help output.
160 - new option --sync in treescan, to sync everything in a subtree.
161 - changed default for aio_msync flags to MSYNC_SYNC.
162 - document offset/length behaviour of mprotect/madvise.
163 - support linux's renameat2 (via aio_rename2).
164 - add aio_rename2, an aio_rename with flags.
165 - add F_DUPPFD_CLOEXEC, F_OFD_[SG]ETLKW? constants.
166 - add FALLOC_FL_INSERT_RANGE, FALLOC_FL_UNSHARE_RANGE.
167 - (libeio) use posix_close if available.
168 - (libeio) internal close() calls no longer disturb errno.
169 - add IO:AIO::FALLOC_FL_UNSHARE.
170 - update schmorp.h for removal of USE_SOCKETS_AS_HANDLES
171 and better eventfd detection.
172
1734.34 Sun May 1 19:18:24 CEST 2016
174 - def0.h was not properly generated during previous release, causing
175 compile errors on various platforms.
176 - major/minor were accidentally switched (reported by Alexander Lishenyuk).
177 - removed duplicate definition of MAP_HUGETLB, that was found due to
178 a bug in Perl::Tidy (testcase by alaska332@gmail.com).
179 - added (untested!) aio_fcntl, aio_ioctl requests.
180 - (libeio) names set via prctl are truncated to 15 chars + nul, not 16,
181 as manpages-dev originally claimed.
182
1834.33 Mon Jan 18 12:50:10 CET 2016
184 - add IO::AIO::pipe2 function.
185 - added support for FALLOC_FL_COLLAPSE_RANGE and FALLOC_FL_ZERO_RANGE
186 constants.
187 - added support for O_TMPFILE and O_PATH constants.
188 - added support for MAP_FIXED, MAP_GROWSDOWN,MAP_32BIT, MAP_HUGETLB, MAP_STACK
189 consdtants, whether they can be sensibly used or not.
190 - use NO_INIT where applicable.
191 - update libecb.
192 - added stability canary support.
193 - updated linux super magic table to 4.3.3.
194
1954.32 Wed Feb 11 20:32:11 CET 2015
196 - replace off_t by STRLEN where appropriate, should not result in
197 user-visible changes.
198 - update ecb.h for C11 compatibility.
199
2004.31 Tue Jun 3 03:29:27 CEST 2014
201 - work around more 5.20 bugs. backwards compatibility my ass.
202
2034.3 Fri Apr 11 06:22:38 CEST 2014
204 - perl5porters broke Async::Interrupt, BDB, EV, IO::AIO, OpenCL
205 without warning by switching the meaning of USE_SOCKETS_AS_HANDLES
206 in 5.18. What's so attractive about giving a shit about backwards
207 compatibility - I will never understand.
208
2094.2 Sat Jan 25 01:13:14 CET 2014
210 - aio_group could corrupt memory because it didn't restore
211 the stack after req_submit.
212 - be more careful on (e.g. permission) errors in bin/treescan.
213 - work around changes in ExtUtils::MakeMaker.
214 - (libeio) implement aio_realpath for win32.
215 - (xthread) work around compile time bugs in ptw32.
216 - added IO::AIO::pipesize.
217 - (libecb) insignificant update.
218
2194.19 Sun Jan 6 12:47:26 CET 2013
220 - avoid endless loop in fiemap with some XFS files.
221 - in aio_rename and aio_rmdir, specialcase the case of [$wd, "."]
222 and call rename/rmdir instead of renameat/unlinkat.
223
2244.18 Thu Oct 11 07:01:26 CEST 2012
225 - fix unintended xthread_create by intentionalising it :)
226
2274.17 Thu Oct 11 05:19:47 CEST 2012
228 - rename aio_fallocate to aio_allocate, to match documentation.
229 - add list of linux fsid values to aio_statvfs docs.
230 - work around a bug in btrfs' FIEMAP ioctl implementation.
231 - work around AIX bug: statvfs.f_fsid is a struct, not unsigned long
232 as per unix spec.
233
2344.16 Tue Aug 14 05:39:03 CEST 2012
235 - aio_statvfs was wromgly marked for wd emulation, causing
236 it to malfunction for paths.
237 - fix a crash in aio_fiemap, when used on ranges without any
238 extents.
239 - work around linux kernel bug (at least in 3.2): kernel might
240 trash fiemap input arguments.
241 - work around linux kernel bug (at least in 3.2): kernel does not
242 set FIEMAP_EXTENT_LAST on last segment.
243 - work around linux kernel bug (at least in 3.2): kernel silently
244 truncates segment count if a file.
245 - make fh argument of IO::AIO::mmap optional, also add mmap/munmap
246 to quick overview.
247 - splice can corrupt data.
248 - (libeio) remove pread/pwrite emulation.
249 - do not grow mmaped scalars in aio_read.
250 - add FALLOC_FL_PUNCH_HOLE and document fallocate.
251 - provide pread/pwrite for win32, making it link again on native win32.
252
2534.15 Tue Apr 10 06:59:00 CEST 2012
254 - always include linux/types.h for fiemap, for compatibility to
255 ancient systems (Paul Howarth).
256 - experimental support for IO::AIO::splice and ::tee (no aio_...).
257 - provide SEEK_HOLE and SEEK_DATA, if available.
258 - work around (again!) an immensely stupid bug in RHEL, defining
259 autoconf macros in linux system headers (analysed by Paul Howarth).
260
2614.14 Sat Apr 7 02:45:18 CEST 2012
262 - fix stat structure usage on windows, which caused bogus stat results.
263 - (libeio) make readahead emulation behave more like actual readahead by never failing.
264 - new request aio_seek.
265 - new request aio_fiemap.
266 - autogenerate the #ifdef/#define 0 blocks for symbols we export.
267
2684.12 Fri Dec 30 08:51:25 CET 2011
269 - realpath would return a random value if the name was too long,
270 instead of -1.
271 - port to c89.
272
2734.11 Mon Oct 10 00:24:11 CEST 2011
274 - libeio didn't compile on !linux (Paul Howarth).
275
2764.1 Sun Oct 9 10:24:11 CEST 2011
277 - IO::AIO did access uninitialised memory on unsuccessful stats.
278 - (libeio) added syncfs syscall wrapper.
279 - (libeio) set thread name on linux (ps -L/Hcx, top, gdb).
280 - (libeio) support multiple indepenent working directories.
281 - applied speling corrections by Nicholas Bamber.
282 - tune treescan #threads and #outstanding requests a bit.
283 - reduce the number of file descriptors in use at any one time
284 in treescan, to avoid running out of them (and using too much ram).
285 - take advantage of working directoriy abstractions
286 in aio_scandir and treescan.
287 - reduce compiled size by ~10% by not inlining some key functionality.
288 - added --progress switch to treescan.
289
2904.0 Mon Jul 18 05:01:10 CEST 2011
291 - INCOMPATIBLE CHANGE: fork is no longer supported (indeed, it never was),
292 see FORK BEHAVIOUR in manpage for details.
293 - passes testsuite on win32 now and may actually work
294 (activestate 5.10.1 / MSVC6, YMMV).
295 - (libeio) fix a deadlock where a wakeup signal could be missed when
296 a timeout occured at the same time.
297 - (libeio) added realpath.
298 - (libeio) added fallocate.
299 - (libeio) disabling sendfile on darwin unfortunately broke the emulation.
300 - (libeio) do not acquire any locks when forking.
301 - (libeio) use fewer time() syscalls when waiting for new requests.
302
3033.93 Wed Jun 29 23:44:18 CEST 2011
304 - ECB.H WAS MISSING.
305
3063.92 Wed Jun 29 14:45:41 CEST 2011
307 - ecb.h was missing.
308
3093.91 Wed Jun 29 13:24:42 CEST 2011
310 - (libeio) work around a Linux (and likely FreeBSD and other
311 kernels) bug where sendfile would not transfer all the requested
312 bytes on large transfers, using a heuristic.
313 - buggy sendfile caused aio_move/copy to sometimes fail for big
314 files (fortunately it checks that the whole file has been
315 transferred...)
316 - use libecb for higher performance and higher portability.
317 - (libeio) disable sendfile on darwin, it's too broken.
318 - disable fork tests on !linux, as only linux supports mixing
319 pthread and fork in perl.
320 - document the fact that fork doesn't work anymore when using
321 this module, on anything !GNU/Linux.
322 - increase timeout in t/04_fork.t, as too many CPAN-tester setups
323 run on a 0.1MHz cpu. Or so.
324
3253.9 Fri May 27 02:43:47 CEST 2011
326 - (libeio) fix memory corruption in aio_readdirx for the flags
327 combination READDIR_STAT_ORDER | READDIR_DIRS_FIRST.
328 - add lots of newer POSIX and GNU/Linux-specific open
329 flags.
330
3313.8 Sun Mar 27 12:25:33 CEST 2011
332 - use nonstandard but maybe-working-on-bsd fork technique.
333 - support a max_idle value of 0.
334 - support setting of idle timeout value (IO::AIO::idle_timeout).
335
3363.72 Fri Feb 11 04:25:38 CET 2011
337 - use _POSIX_MEMLOCK_RANGE to detect mlock/munlock.
338 - aio_mknod always used a dev_t value of 0.
339 - new treescan option: --grep.
340 - add more S_IF macros, and major/minor/makedev "macros".
341
3423.71 Thu Dec 30 08:18:46 CET 2010
343 - the numerical result value passed to callbacks did not stringify
344 correctly, due to internal reuse and failure to reset the sv flags.
345 - actually test for posix_[mf]advise, as at least uClibc defines
346 _POSIX_ADVISORY_INFO without actually having any of the required
347 funcitonality. ugh.
348
3493.7 Mon Nov 1 23:00:34 CET 2010
350 - implement/add madvise, mmap, munmap, aio_mlockall, munlockall,
351 aio_mlock, munlock, msync and mtouch to @EXPORT_OK.
352 - document the sad state of affairs w.r.t. pthread on many bsds.
353 - do not enable mmap on systems without _POSIX_MAPPED_FILES
354 (openbsd 4.8).
355 - do not leak memory in IO::AIO::mmap when the scalar already
356 had string-data.
357 - add O_RDWR, O_APPEND and O_EXCL symbols and semi-document
358 them.
359 - cache the result IV, for a minor speedup in the common case.
360 - croak when an mmapped-scalar changes location, to detect
361 user-errors better.
362 - fix aio_readlink prototype.
363
3643.65 Wed Mar 31 02:45:05 CEST 2010
365 - actually use PATH_MAX instead of NAME_MAX for readlink, as to not
366 cut off long pathnames in aio_readlink (based on patch by
367 Rasmus Andersson).
368 - a double fork partially killed the event pipe (great testcase
369 by dormando). affects IO::AIO, BDB and Async::Interrupt.
370 - suck steve's dick and rename our symbols to avoid colliding
371 with nonstandard identifier spam on the broken os x pseudo-os.
372 affects IO::AIO and BDB.
373
3743.6 Mon Jan 11 00:43:39 CET 2010
375 - (libeio) more fixes for the freebsd/apple sendfile - broken by
376 manpage standards, but apparently correct accoridng to actual
377 kernel sources.
378 - add IO::AIO::mmap/munmap support.
379 - add IO::AIO::m(un)lockall support.
380 - clean up manpage.
381
3823.5 Thu Jan 7 21:25:04 CET 2010
383 - (liebio) fix freebsd sendfile (Vanilla Hsu).
384 - (libeio) also fix darwin sendfile that suffered from a similar bug.
385 - add aio_statvfs as interface to statvfs/fstatvfs.
386 - work around buggy symlink() on cygwin in the testsuite.
387 - wtf. freebsd-8.0 actually passes the testsuite! I knew
388 they could implement fork and semaphores one day! cheers!
389
3903.4 Sat Jan 2 15:13:04 CET 2010
391 - (libeio) max_poll_time was not properly converted to ticks.
392 - clarify cancel_subs description.
393 - IO::AIO::sendfile did not actually return the return value
394 from the sendfile call.
395 - implement aio_msync, aio_mtouch.
396 - (libeio) tentatively support darwin in sendfile.
397
3983.31 Thu Nov 12 02:14:29 CET 2009
399 - fix result status documentation of aio_copy, aio_move.
400 - speed up object creation considerably by avoiding
401 hash lookups.
402
4033.3 Wed Aug 5 13:52:58 CEST 2009
404 - use common::sense.
405 - use common schmorp.h header.
406 - allow integers (file descriptors) in addition to file handles.
407 - take advantage of linux' eventfd (but it seems slower on smp?).
408 - use poll not select on posix platforms.
409
4103.261 Wed Jul 1 10:11:51 CEST 2009
411 - more 0S X workarounds (patch by Tokuhiro Matsuno).
412
4133.26 Tue Jun 30 09:33:26 CEST 2009
414 - 0S X of course claims to be posix 2008 but lacks posix_fadvise.
415 try to work around this horribly broken OS in a somewhat hackish
416 way. might help other os's too.
417
4183.25 Sat Jun 27 05:18:26 CEST 2009
419 - added IO::AIO::fadvise and IO::AIO::sendfile.
420 - (libeio) replaced quicksort+insertion sort by a tuned radix
421 sort + insertion sort, resulting in comparable runtime (usually
422 faster) to the old version, but without any ill side effects on
423 degenerated (for quicksort) data.
424 - (libeio) correctly sort dirs by inodes if we have perfect type
425 knowledge and DIRS_FIRST is used.
426 - (libeio) internally the wrong DT_* constants were used, but no
427 known system has differing EIO_DT_*/DT_* values, so not an issue.
428 - removed a (harmless) assert that was left over on the code
429 but should not have been.
430 - use more correct types (change IO length from IV to VAL64,
431 which makes a difference on systems without 64 bit perls).
432
4333.23 Sat Jun 13 16:57:58 CEST 2009
434 - fix off-by-one bug in aio_readdir that was introduced in the
435 rushed 3.22 release.
436
4373.22 Sat Jun 13 15:32:40 CEST 2009
438 - speed up readdirx sort algorithm slightly.
439 - bin/treescan was missing from distro tarball.
440
4413.21 Fri Jun 12 18:45:53 CEST 2009
9 - new options --dirs and --files for treescan. 442 - new options --dirs and --files for treescan.
10 - install bin/treescan by default. 443 - install bin/treescan by default.
444 - (libeio) aio_readdir can now be cancelled while executing.
445 - fix a printf format string for 64 bit systems (could lead
446 to problems on big endian 64 bit systems).
447 - do not use qsort() but our own algorithm: glibc initialises
448 the whole locale and I/O subsystem inside qsort, causing
449 a stack overflow on 32 bit machines. The new sort uses much less
450 stack and is more than twice as fast in typical situations.
11 451
123.2 Sun Jun 7 20:30:05 CEST 2009 4523.2 Sun Jun 7 20:30:05 CEST 2009
13 - (libeio) pwrite emulation was even more flawed than intended and did 453 - (libeio) pwrite emulation was even more flawed than intended and did
14 not restore the file offset. 454 not restore the file offset.
15 - add aio_readdirx, which can return inode and filetype and sort 455 - add aio_readdirx, which can return inode and filetype and sort

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