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Comparing IO-AIO/Changes (file contents):
Revision 1.192 by root, Sat Jun 13 13:33:00 2009 UTC vs.
Revision 1.397 by root, Wed Dec 30 07:45:33 2020 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/
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: pidfd_open/pidfd_send_signal (open/poll /proc?)
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
514.75 Wed Dec 30 08:44:55 CET 2020
52 - removed leftover debug output from treescan.
53 - added (but not documented) waitid-P_*, FSPICK_*, FSOPEN_*,
54 FSCONFIG_*, MOUNT_ATTR_* constants.
55
564.74 Tue Dec 29 16:19:28 CET 2020
57 - added pidfd_open, pidfd_getfd and pidfd_send_signal functions.
58 - rework bin/treescan to avoid recursion. This fixes two bugs
59 where a deep directory traversal or a lot of command line
60 arguments could cause it to crash.
61 - added (but not documented) open_tree, AT_* and move_mount flags.
62 - support defining syscall numbers in gendef0.
63
644.73 Fri Dec 4 02:08:37 CET 2020
65 - def0.h was not uptodate, running into musl problems
66 (reported by B Fraser).
67 - IO::AIO::splice and IO::AIO::tee didn't properly return
68 64 bit values.
69 - added IO::AIO::accept4.
70 - add various F_SEAL related fcntl constants.
71 - removed experimental marker for fdlimit functions.
72 - fiemap now includes the last segment even if it overflows
73 the end offset, which is arguably the correct behaviour.
74
754.72 Wed Apr 3 04:56:03 CEST 2019
76 - (libeio) if fd 0 is available do not use it for aio_wd, as it
77 collides with IO::AIO::CWD.
78 - added IO::AIO::memfd_create.
79 - correctly include <sys/uio.h> in the vmsplice test.
80 - reduce codesize by ~7% on amd64 by declaring more functions
81 as noinline.
82 - documentation fixes and updates.
83 - experimental and undocumented preliminary support for synchronous statx.
84
854.71 Sun Mar 10 13:09:26 CET 2019
86 - due to an error in the linux manpages, the configure tests
87 for readahead, sync_file_range, splice etc. failed. This has been fixed.
88
894.7 Mon Mar 4 11:28:13 CET 2019
90 - majorly speed up scandir for the very special case of a non-POSIX
91 filesystem that nevertheless reports valid dt_type information.
92 The only known filesystem of this type is currently btrfs, which
93 didn't get it's act together to implement POSIX semantics in all
94 these years, and I am tired of waiting.
95 - add IO::AIO::MCL_ONFAULT for mlockall, add IO::AIO::mlockall.
96 - neither sys/mkdev.h nor sys/sysmacros.h were included, even when they
97 were detected by autoconf.
98
994.6 Sat Aug 25 21:58:36 CEST 2018
100 - add st_btime, st_btimesec, st_btimensec and st_gen accessors,
101 mostly for bsds which expose birthtime and st_gen members (netbsd, freebsd
102 but only st_gen on openbsd because they compiled their perl without support
103 for birthtimes).
104 - fix madvise and munlock to properly support negative offsets.
105 - allocate fd for the aio_close at boot time, to guarantee it working
106 later, rather than calling abort when it fails. also avoids
107 close-on-exec race issues after module load.
108 - #undef utime on win32, maybe this helps some reports of utime hangs.
109 - minor doc improvements.
110 - minor configure cleanups.
111 - use $Config{perllibs} instead of libs for configure. might help people
112 who didn't install all perl dependencies (might break things as well).
113
1144.54 Tue Aug 14 13:54:48 CEST 2018
115 - include sys/mkdev.h or sys/sysmacros.h if available.
116 - further tweaks to configure invocation for systems requiring --rpath.
117 - no longer rely on custom paths on win32 platforms.
118 - try to work around buggy PAGESIZE macro on solaris.
119
1204.53 Tue Aug 14 11:27:50 CEST 2018
121 - add $Config{libs} to LIBS for configure, to work around systems
122 with broken library dependencies (... openbsd).
123
1244.52 Sun Aug 12 08:09:45 CEST 2018
125 - config.h.in was missing in distribution.
126
1274.51 Sun Aug 12 07:24:14 CEST 2018
128 - complete rework of the autoconf framework: IO::AIO now uses its own
129 config.h, separate from libeio, and tries to test the actual perl
130 environment, not the standard system environment.
131 - provide nanosecond-accracy stat time accessors for both perl and IO::AIO
132 stat functions.
133 - removed non-portable C++ syntax from eio.c.
134 - try to fix readdir tests on cygwin spuriously failing.
135
1364.5 Wed Aug 1 00:23:55 CEST 2018
137 - aio_mtouch touch all pages as requested, not just the first page in most cases.
138 - new function: IO::AIO::mremap, linux-specific mremap, with constants MREMAP_MAYMOVE
139 and MREMAP_FIXED.
140 - add O_ACCMODE.
141 - add (undocumented) MSG_CMSG_CLOEXEC and SOCK_CLOEXEC constants.
142
1434.4 Tue Feb 20 07:54:12 CET 2018
144 - new aio_slurp request.
145 - add (experimental) IO::AIO::eventfd and timerfd* function.
146 - add (experimental) IO::AIO::get_fdlimit and IO::AIO::min_fdlimit.
147 - point out that aio_copy overwrites existing files.
148 - removed filesystem magic number table from aio_statvfs docs as
149 statvfs doesn't actually return this info at all (statfs does).
150 - add a bunch of (mostly linux-specific) constants for use in ioctls
151 (see aio_ioctl docs).
152 - treescan now has a proper manpage and useful --help output.
153 - new option --sync in treescan, to sync everything in a subtree.
154 - changed default for aio_msync flags to MSYNC_SYNC.
155 - document offset/length behaviour of mprotect/madvise.
156 - support linux's renameat2 (via aio_rename2).
157 - add aio_rename2, an aio_rename with flags.
158 - add F_DUPPFD_CLOEXEC, F_OFD_[SG]ETLKW? constants.
159 - add FALLOC_FL_INSERT_RANGE, FALLOC_FL_UNSHARE_RANGE.
160 - (libeio) use posix_close if available.
161 - (libeio) internal close() calls no longer disturb errno.
162 - add IO:AIO::FALLOC_FL_UNSHARE.
163 - update schmorp.h for removal of USE_SOCKETS_AS_HANDLES
164 and better eventfd detection.
165
1664.34 Sun May 1 19:18:24 CEST 2016
167 - def0.h was not properly generated during previous release, causing
168 compile errors on various platforms.
169 - major/minor were accidentally switched (reported by Alexander Lishenyuk).
170 - removed duplicate definition of MAP_HUGETLB, that was found due to
171 a bug in Perl::Tidy (testcase by alaska332@gmail.com).
172 - added (untested!) aio_fcntl, aio_ioctl requests.
173 - (libeio) names set via prctl are truncated to 15 chars + nul, not 16,
174 as manpages-dev originally claimed.
175
1764.33 Mon Jan 18 12:50:10 CET 2016
177 - add IO::AIO::pipe2 function.
178 - added support for FALLOC_FL_COLLAPSE_RANGE and FALLOC_FL_ZERO_RANGE
179 constants.
180 - added support for O_TMPFILE and O_PATH constants.
181 - added support for MAP_FIXED, MAP_GROWSDOWN,MAP_32BIT, MAP_HUGETLB, MAP_STACK
182 consdtants, whether they can be sensibly used or not.
183 - use NO_INIT where applicable.
184 - update libecb.
185 - added stability canary support.
186 - updated linux super magic table to 4.3.3.
187
1884.32 Wed Feb 11 20:32:11 CET 2015
189 - replace off_t by STRLEN where appropriate, should not result in
190 user-visible changes.
191 - update ecb.h for C11 compatibility.
192
1934.31 Tue Jun 3 03:29:27 CEST 2014
194 - work around more 5.20 bugs. backwards compatibility my ass.
195
1964.3 Fri Apr 11 06:22:38 CEST 2014
197 - perl5porters broke Async::Interrupt, BDB, EV, IO::AIO, OpenCL
198 without warning by switching the meaning of USE_SOCKETS_AS_HANDLES
199 in 5.18. What's so attractive about giving a shit about backwards
200 compatibility - I will never understand.
201
2024.2 Sat Jan 25 01:13:14 CET 2014
203 - aio_group could corrupt memory because it didn't restore
204 the stack after req_submit.
205 - be more careful on (e.g. permission) errors in bin/treescan.
206 - work around changes in ExtUtils::MakeMaker.
207 - (libeio) implement aio_realpath for win32.
208 - (xthread) work around compile time bugs in ptw32.
209 - added IO::AIO::pipesize.
210 - (libecb) insignificant update.
211
2124.19 Sun Jan 6 12:47:26 CET 2013
213 - avoid endless loop in fiemap with some XFS files.
214 - in aio_rename and aio_rmdir, specialcase the case of [$wd, "."]
215 and call rename/rmdir instead of renameat/unlinkat.
216
2174.18 Thu Oct 11 07:01:26 CEST 2012
218 - fix unintended xthread_create by intentionalising it :)
219
2204.17 Thu Oct 11 05:19:47 CEST 2012
221 - rename aio_fallocate to aio_allocate, to match documentation.
222 - add list of linux fsid values to aio_statvfs docs.
223 - work around a bug in btrfs' FIEMAP ioctl implementation.
224 - work around AIX bug: statvfs.f_fsid is a struct, not unsigned long
225 as per unix spec.
226
2274.16 Tue Aug 14 05:39:03 CEST 2012
228 - aio_statvfs was wromgly marked for wd emulation, causing
229 it to malfunction for paths.
230 - fix a crash in aio_fiemap, when used on ranges without any
231 extents.
232 - work around linux kernel bug (at least in 3.2): kernel might
233 trash fiemap input arguments.
234 - work around linux kernel bug (at least in 3.2): kernel does not
235 set FIEMAP_EXTENT_LAST on last segment.
236 - work around linux kernel bug (at least in 3.2): kernel silently
237 truncates segment count if a file.
238 - make fh argument of IO::AIO::mmap optional, also add mmap/munmap
239 to quick overview.
240 - splice can corrupt data.
241 - (libeio) remove pread/pwrite emulation.
242 - do not grow mmaped scalars in aio_read.
243 - add FALLOC_FL_PUNCH_HOLE and document fallocate.
244 - provide pread/pwrite for win32, making it link again on native win32.
245
2464.15 Tue Apr 10 06:59:00 CEST 2012
247 - always include linux/types.h for fiemap, for compatibility to
248 ancient systems (Paul Howarth).
249 - experimental support for IO::AIO::splice and ::tee (no aio_...).
250 - provide SEEK_HOLE and SEEK_DATA, if available.
251 - work around (again!) an immensely stupid bug in RHEL, defining
252 autoconf macros in linux system headers (analysed by Paul Howarth).
253
2544.14 Sat Apr 7 02:45:18 CEST 2012
255 - fix stat structure usage on windows, which caused bogus stat results.
256 - (libeio) make readahead emulation behave more like actual readahead by never failing.
257 - new request aio_seek.
258 - new request aio_fiemap.
259 - autogenerate the #ifdef/#define 0 blocks for symbols we export.
260
2614.12 Fri Dec 30 08:51:25 CET 2011
262 - realpath would return a random value if the name was too long,
263 instead of -1.
264 - port to c89.
265
2664.11 Mon Oct 10 00:24:11 CEST 2011
267 - libeio didn't compile on !linux (Paul Howarth).
268
2694.1 Sun Oct 9 10:24:11 CEST 2011
270 - IO::AIO did access uninitialised memory on unsuccessful stats.
271 - (libeio) added syncfs syscall wrapper.
272 - (libeio) set thread name on linux (ps -L/Hcx, top, gdb).
273 - (libeio) support multiple indepenent working directories.
274 - applied speling corrections by Nicholas Bamber.
275 - tune treescan #threads and #outstanding requests a bit.
276 - reduce the number of file descriptors in use at any one time
277 in treescan, to avoid running out of them (and using too much ram).
278 - take advantage of working directoriy abstractions
279 in aio_scandir and treescan.
280 - reduce compiled size by ~10% by not inlining some key functionality.
281 - added --progress switch to treescan.
282
2834.0 Mon Jul 18 05:01:10 CEST 2011
284 - INCOMPATIBLE CHANGE: fork is no longer supported (indeed, it never was),
285 see FORK BEHAVIOUR in manpage for details.
286 - passes testsuite on win32 now and may actually work
287 (activestate 5.10.1 / MSVC6, YMMV).
288 - (libeio) fix a deadlock where a wakeup signal could be missed when
289 a timeout occured at the same time.
290 - (libeio) added realpath.
291 - (libeio) added fallocate.
292 - (libeio) disabling sendfile on darwin unfortunately broke the emulation.
293 - (libeio) do not acquire any locks when forking.
294 - (libeio) use fewer time() syscalls when waiting for new requests.
295
2963.93 Wed Jun 29 23:44:18 CEST 2011
297 - ECB.H WAS MISSING.
298
2993.92 Wed Jun 29 14:45:41 CEST 2011
300 - ecb.h was missing.
301
3023.91 Wed Jun 29 13:24:42 CEST 2011
303 - (libeio) work around a Linux (and likely FreeBSD and other
304 kernels) bug where sendfile would not transfer all the requested
305 bytes on large transfers, using a heuristic.
306 - buggy sendfile caused aio_move/copy to sometimes fail for big
307 files (fortunately it checks that the whole file has been
308 transferred...)
309 - use libecb for higher performance and higher portability.
310 - (libeio) disable sendfile on darwin, it's too broken.
311 - disable fork tests on !linux, as only linux supports mixing
312 pthread and fork in perl.
313 - document the fact that fork doesn't work anymore when using
314 this module, on anything !GNU/Linux.
315 - increase timeout in t/04_fork.t, as too many CPAN-tester setups
316 run on a 0.1MHz cpu. Or so.
317
3183.9 Fri May 27 02:43:47 CEST 2011
319 - (libeio) fix memory corruption in aio_readdirx for the flags
320 combination READDIR_STAT_ORDER | READDIR_DIRS_FIRST.
321 - add lots of newer POSIX and GNU/Linux-specific open
322 flags.
323
3243.8 Sun Mar 27 12:25:33 CEST 2011
325 - use nonstandard but maybe-working-on-bsd fork technique.
326 - support a max_idle value of 0.
327 - support setting of idle timeout value (IO::AIO::idle_timeout).
328
3293.72 Fri Feb 11 04:25:38 CET 2011
330 - use _POSIX_MEMLOCK_RANGE to detect mlock/munlock.
331 - aio_mknod always used a dev_t value of 0.
332 - new treescan option: --grep.
333 - add more S_IF macros, and major/minor/makedev "macros".
334
3353.71 Thu Dec 30 08:18:46 CET 2010
336 - the numerical result value passed to callbacks did not stringify
337 correctly, due to internal reuse and failure to reset the sv flags.
338 - actually test for posix_[mf]advise, as at least uClibc defines
339 _POSIX_ADVISORY_INFO without actually having any of the required
340 funcitonality. ugh.
341
3423.7 Mon Nov 1 23:00:34 CET 2010
343 - implement/add madvise, mmap, munmap, aio_mlockall, munlockall,
344 aio_mlock, munlock, msync and mtouch to @EXPORT_OK.
345 - document the sad state of affairs w.r.t. pthread on many bsds.
346 - do not enable mmap on systems without _POSIX_MAPPED_FILES
347 (openbsd 4.8).
348 - do not leak memory in IO::AIO::mmap when the scalar already
349 had string-data.
350 - add O_RDWR, O_APPEND and O_EXCL symbols and semi-document
351 them.
352 - cache the result IV, for a minor speedup in the common case.
353 - croak when an mmapped-scalar changes location, to detect
354 user-errors better.
355 - fix aio_readlink prototype.
356
3573.65 Wed Mar 31 02:45:05 CEST 2010
358 - actually use PATH_MAX instead of NAME_MAX for readlink, as to not
359 cut off long pathnames in aio_readlink (based on patch by
360 Rasmus Andersson).
361 - a double fork partially killed the event pipe (great testcase
362 by dormando). affects IO::AIO, BDB and Async::Interrupt.
363 - suck steve's dick and rename our symbols to avoid colliding
364 with nonstandard identifier spam on the broken os x pseudo-os.
365 affects IO::AIO and BDB.
366
3673.6 Mon Jan 11 00:43:39 CET 2010
368 - (libeio) more fixes for the freebsd/apple sendfile - broken by
369 manpage standards, but apparently correct accoridng to actual
370 kernel sources.
371 - add IO::AIO::mmap/munmap support.
372 - add IO::AIO::m(un)lockall support.
373 - clean up manpage.
374
3753.5 Thu Jan 7 21:25:04 CET 2010
376 - (liebio) fix freebsd sendfile (Vanilla Hsu).
377 - (libeio) also fix darwin sendfile that suffered from a similar bug.
378 - add aio_statvfs as interface to statvfs/fstatvfs.
379 - work around buggy symlink() on cygwin in the testsuite.
380 - wtf. freebsd-8.0 actually passes the testsuite! I knew
381 they could implement fork and semaphores one day! cheers!
382
3833.4 Sat Jan 2 15:13:04 CET 2010
384 - (libeio) max_poll_time was not properly converted to ticks.
385 - clarify cancel_subs description.
386 - IO::AIO::sendfile did not actually return the return value
387 from the sendfile call.
388 - implement aio_msync, aio_mtouch.
389 - (libeio) tentatively support darwin in sendfile.
390
3913.31 Thu Nov 12 02:14:29 CET 2009
392 - fix result status documentation of aio_copy, aio_move.
393 - speed up object creation considerably by avoiding
394 hash lookups.
395
3963.3 Wed Aug 5 13:52:58 CEST 2009
397 - use common::sense.
398 - use common schmorp.h header.
399 - allow integers (file descriptors) in addition to file handles.
400 - take advantage of linux' eventfd (but it seems slower on smp?).
401 - use poll not select on posix platforms.
402
4033.261 Wed Jul 1 10:11:51 CEST 2009
404 - more 0S X workarounds (patch by Tokuhiro Matsuno).
405
4063.26 Tue Jun 30 09:33:26 CEST 2009
407 - 0S X of course claims to be posix 2008 but lacks posix_fadvise.
408 try to work around this horribly broken OS in a somewhat hackish
409 way. might help other os's too.
410
4113.25 Sat Jun 27 05:18:26 CEST 2009
412 - added IO::AIO::fadvise and IO::AIO::sendfile.
413 - (libeio) replaced quicksort+insertion sort by a tuned radix
414 sort + insertion sort, resulting in comparable runtime (usually
415 faster) to the old version, but without any ill side effects on
416 degenerated (for quicksort) data.
417 - (libeio) correctly sort dirs by inodes if we have perfect type
418 knowledge and DIRS_FIRST is used.
419 - (libeio) internally the wrong DT_* constants were used, but no
420 known system has differing EIO_DT_*/DT_* values, so not an issue.
421 - removed a (harmless) assert that was left over on the code
422 but should not have been.
423 - use more correct types (change IO length from IV to VAL64,
424 which makes a difference on systems without 64 bit perls).
425
4263.23 Sat Jun 13 16:57:58 CEST 2009
427 - fix off-by-one bug in aio_readdir that was introduced in the
428 rushed 3.22 release.
8 429
93.22 Sat Jun 13 15:32:40 CEST 2009 4303.22 Sat Jun 13 15:32:40 CEST 2009
10 - speed up readdirx sort algorithm slightly. 431 - speed up readdirx sort algorithm slightly.
11 - bin/treescan was missing from distro tarball. 432 - bin/treescan was missing from distro tarball.
12 433

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