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Comparing IO-AIO/Changes (file contents):
Revision 1.195 by root, Mon Jun 15 05:34:49 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.
9 - (libeio) replaced quicksort+insertion sort by a tuned radix 420 - (libeio) replaced quicksort+insertion sort by a tuned radix
10 sort + insertion sort, resulting in comparable runtime (usually 421 sort + insertion sort, resulting in comparable runtime (usually
11 faster) to the old version, but without any ill side effects on 422 faster) to the old version, but without any ill side effects on
12 degenerated (for quicksort) data. 423 degenerated (for quicksort) data.
13 - (libeio) correctly sort dirs by inodes if we have perfect type 424 - (libeio) correctly sort dirs by inodes if we have perfect type
14 knowledge and DIRS_FIRST is used. 425 knowledge and DIRS_FIRST is used.
15 - (libeio) internally the wrong DT_* constants were used, but no 426 - (libeio) internally the wrong DT_* constants were used, but no
16 known system has differing EIO_DT_*/DT_* values, so not an issue. 427 known system has differing EIO_DT_*/DT_* values, so not an issue.
17 - removed a (harmless) assert that was left over on the code 428 - removed a (harmless) assert that was left over on the code
18 but should not have been. 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).
19 432
203.23 Sat Jun 13 16:57:58 CEST 2009 4333.23 Sat Jun 13 16:57:58 CEST 2009
21 - fix off-by-one bug in aio_readdir that was introduced in the 434 - fix off-by-one bug in aio_readdir that was introduced in the
22 rushed 3.22 release. 435 rushed 3.22 release.
23 436

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