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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 1.396 by root, Tue Dec 29 18:00:40 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/
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: 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
51 - added (but not documented) waitid-P_*, FSPICK_*, FSOPEN_*,
52 FSCONFIG_*, MOUNT_ATTR_* constants.
53
544.74 Tue Dec 29 16:19:28 CET 2020
55 - added pidfd_open, pidfd_getfd and pidfd_send_signal functions.
56 - rework bin/treescan to avoid recursion. This fixes two bugs
57 where a deep directory traversal or a lot of command line
58 arguments could cause it to crash.
59 - added (but not documented) open_tree, AT_* and move_mount flags.
60 - support defining syscall numbers in gendef0.
61
624.73 Fri Dec 4 02:08:37 CET 2020
63 - def0.h was not uptodate, running into musl problems
64 (reported by B Fraser).
65 - IO::AIO::splice and IO::AIO::tee didn't properly return
66 64 bit values.
67 - added IO::AIO::accept4.
68 - add various F_SEAL related fcntl constants.
69 - removed experimental marker for fdlimit functions.
70 - fiemap now includes the last segment even if it overflows
71 the end offset, which is arguably the correct behaviour.
72
734.72 Wed Apr 3 04:56:03 CEST 2019
74 - (libeio) if fd 0 is available do not use it for aio_wd, as it
75 collides with IO::AIO::CWD.
76 - added IO::AIO::memfd_create.
77 - correctly include <sys/uio.h> in the vmsplice test.
78 - reduce codesize by ~7% on amd64 by declaring more functions
79 as noinline.
80 - documentation fixes and updates.
81 - experimental and undocumented preliminary support for synchronous statx.
82
834.71 Sun Mar 10 13:09:26 CET 2019
84 - due to an error in the linux manpages, the configure tests
85 for readahead, sync_file_range, splice etc. failed. This has been fixed.
86
874.7 Mon Mar 4 11:28:13 CET 2019
88 - majorly speed up scandir for the very special case of a non-POSIX
89 filesystem that nevertheless reports valid dt_type information.
90 The only known filesystem of this type is currently btrfs, which
91 didn't get it's act together to implement POSIX semantics in all
92 these years, and I am tired of waiting.
93 - add IO::AIO::MCL_ONFAULT for mlockall, add IO::AIO::mlockall.
94 - neither sys/mkdev.h nor sys/sysmacros.h were included, even when they
95 were detected by autoconf.
96
974.6 Sat Aug 25 21:58:36 CEST 2018
98 - add st_btime, st_btimesec, st_btimensec and st_gen accessors,
99 mostly for bsds which expose birthtime and st_gen members (netbsd, freebsd
100 but only st_gen on openbsd because they compiled their perl without support
101 for birthtimes).
102 - fix madvise and munlock to properly support negative offsets.
103 - allocate fd for the aio_close at boot time, to guarantee it working
104 later, rather than calling abort when it fails. also avoids
105 close-on-exec race issues after module load.
106 - #undef utime on win32, maybe this helps some reports of utime hangs.
107 - minor doc improvements.
108 - minor configure cleanups.
109 - use $Config{perllibs} instead of libs for configure. might help people
110 who didn't install all perl dependencies (might break things as well).
111
1124.54 Tue Aug 14 13:54:48 CEST 2018
113 - include sys/mkdev.h or sys/sysmacros.h if available.
114 - further tweaks to configure invocation for systems requiring --rpath.
115 - no longer rely on custom paths on win32 platforms.
116 - try to work around buggy PAGESIZE macro on solaris.
117
1184.53 Tue Aug 14 11:27:50 CEST 2018
119 - add $Config{libs} to LIBS for configure, to work around systems
120 with broken library dependencies (... openbsd).
121
1224.52 Sun Aug 12 08:09:45 CEST 2018
123 - config.h.in was missing in distribution.
124
1254.51 Sun Aug 12 07:24:14 CEST 2018
126 - complete rework of the autoconf framework: IO::AIO now uses its own
127 config.h, separate from libeio, and tries to test the actual perl
128 environment, not the standard system environment.
129 - provide nanosecond-accracy stat time accessors for both perl and IO::AIO
130 stat functions.
131 - removed non-portable C++ syntax from eio.c.
132 - try to fix readdir tests on cygwin spuriously failing.
133
1344.5 Wed Aug 1 00:23:55 CEST 2018
135 - aio_mtouch touch all pages as requested, not just the first page in most cases.
136 - new function: IO::AIO::mremap, linux-specific mremap, with constants MREMAP_MAYMOVE
137 and MREMAP_FIXED.
138 - add O_ACCMODE.
139 - add (undocumented) MSG_CMSG_CLOEXEC and SOCK_CLOEXEC constants.
140
1414.4 Tue Feb 20 07:54:12 CET 2018
142 - new aio_slurp request.
143 - add (experimental) IO::AIO::eventfd and timerfd* function.
144 - add (experimental) IO::AIO::get_fdlimit and IO::AIO::min_fdlimit.
145 - point out that aio_copy overwrites existing files.
146 - removed filesystem magic number table from aio_statvfs docs as
147 statvfs doesn't actually return this info at all (statfs does).
148 - add a bunch of (mostly linux-specific) constants for use in ioctls
149 (see aio_ioctl docs).
150 - treescan now has a proper manpage and useful --help output.
151 - new option --sync in treescan, to sync everything in a subtree.
152 - changed default for aio_msync flags to MSYNC_SYNC.
153 - document offset/length behaviour of mprotect/madvise.
154 - support linux's renameat2 (via aio_rename2).
155 - add aio_rename2, an aio_rename with flags.
156 - add F_DUPPFD_CLOEXEC, F_OFD_[SG]ETLKW? constants.
157 - add FALLOC_FL_INSERT_RANGE, FALLOC_FL_UNSHARE_RANGE.
158 - (libeio) use posix_close if available.
159 - (libeio) internal close() calls no longer disturb errno.
160 - add IO:AIO::FALLOC_FL_UNSHARE.
161 - update schmorp.h for removal of USE_SOCKETS_AS_HANDLES
162 and better eventfd detection.
163
1644.34 Sun May 1 19:18:24 CEST 2016
165 - def0.h was not properly generated during previous release, causing
166 compile errors on various platforms.
167 - major/minor were accidentally switched (reported by Alexander Lishenyuk).
168 - removed duplicate definition of MAP_HUGETLB, that was found due to
169 a bug in Perl::Tidy (testcase by alaska332@gmail.com).
170 - added (untested!) aio_fcntl, aio_ioctl requests.
171 - (libeio) names set via prctl are truncated to 15 chars + nul, not 16,
172 as manpages-dev originally claimed.
173
1744.33 Mon Jan 18 12:50:10 CET 2016
175 - add IO::AIO::pipe2 function.
176 - added support for FALLOC_FL_COLLAPSE_RANGE and FALLOC_FL_ZERO_RANGE
177 constants.
178 - added support for O_TMPFILE and O_PATH constants.
179 - added support for MAP_FIXED, MAP_GROWSDOWN,MAP_32BIT, MAP_HUGETLB, MAP_STACK
180 consdtants, whether they can be sensibly used or not.
181 - use NO_INIT where applicable.
182 - update libecb.
183 - added stability canary support.
184 - updated linux super magic table to 4.3.3.
185
1864.32 Wed Feb 11 20:32:11 CET 2015
187 - replace off_t by STRLEN where appropriate, should not result in
188 user-visible changes.
189 - update ecb.h for C11 compatibility.
190
1914.31 Tue Jun 3 03:29:27 CEST 2014
192 - work around more 5.20 bugs. backwards compatibility my ass.
193
1944.3 Fri Apr 11 06:22:38 CEST 2014
195 - perl5porters broke Async::Interrupt, BDB, EV, IO::AIO, OpenCL
196 without warning by switching the meaning of USE_SOCKETS_AS_HANDLES
197 in 5.18. What's so attractive about giving a shit about backwards
198 compatibility - I will never understand.
199
2004.2 Sat Jan 25 01:13:14 CET 2014
201 - aio_group could corrupt memory because it didn't restore
202 the stack after req_submit.
203 - be more careful on (e.g. permission) errors in bin/treescan.
204 - work around changes in ExtUtils::MakeMaker.
205 - (libeio) implement aio_realpath for win32.
206 - (xthread) work around compile time bugs in ptw32.
207 - added IO::AIO::pipesize.
208 - (libecb) insignificant update.
209
2104.19 Sun Jan 6 12:47:26 CET 2013
211 - avoid endless loop in fiemap with some XFS files.
212 - in aio_rename and aio_rmdir, specialcase the case of [$wd, "."]
213 and call rename/rmdir instead of renameat/unlinkat.
214
2154.18 Thu Oct 11 07:01:26 CEST 2012
216 - fix unintended xthread_create by intentionalising it :)
217
2184.17 Thu Oct 11 05:19:47 CEST 2012
219 - rename aio_fallocate to aio_allocate, to match documentation.
220 - add list of linux fsid values to aio_statvfs docs.
221 - work around a bug in btrfs' FIEMAP ioctl implementation.
222 - work around AIX bug: statvfs.f_fsid is a struct, not unsigned long
223 as per unix spec.
224
2254.16 Tue Aug 14 05:39:03 CEST 2012
226 - aio_statvfs was wromgly marked for wd emulation, causing
227 it to malfunction for paths.
228 - fix a crash in aio_fiemap, when used on ranges without any
229 extents.
230 - work around linux kernel bug (at least in 3.2): kernel might
231 trash fiemap input arguments.
232 - work around linux kernel bug (at least in 3.2): kernel does not
233 set FIEMAP_EXTENT_LAST on last segment.
234 - work around linux kernel bug (at least in 3.2): kernel silently
235 truncates segment count if a file.
236 - make fh argument of IO::AIO::mmap optional, also add mmap/munmap
237 to quick overview.
238 - splice can corrupt data.
239 - (libeio) remove pread/pwrite emulation.
240 - do not grow mmaped scalars in aio_read.
241 - add FALLOC_FL_PUNCH_HOLE and document fallocate.
242 - provide pread/pwrite for win32, making it link again on native win32.
243
2444.15 Tue Apr 10 06:59:00 CEST 2012
245 - always include linux/types.h for fiemap, for compatibility to
246 ancient systems (Paul Howarth).
247 - experimental support for IO::AIO::splice and ::tee (no aio_...).
248 - provide SEEK_HOLE and SEEK_DATA, if available.
249 - work around (again!) an immensely stupid bug in RHEL, defining
250 autoconf macros in linux system headers (analysed by Paul Howarth).
251
2524.14 Sat Apr 7 02:45:18 CEST 2012
253 - fix stat structure usage on windows, which caused bogus stat results.
254 - (libeio) make readahead emulation behave more like actual readahead by never failing.
255 - new request aio_seek.
256 - new request aio_fiemap.
257 - autogenerate the #ifdef/#define 0 blocks for symbols we export.
258
2594.12 Fri Dec 30 08:51:25 CET 2011
260 - realpath would return a random value if the name was too long,
261 instead of -1.
262 - port to c89.
263
2644.11 Mon Oct 10 00:24:11 CEST 2011
265 - libeio didn't compile on !linux (Paul Howarth).
266
2674.1 Sun Oct 9 10:24:11 CEST 2011
268 - IO::AIO did access uninitialised memory on unsuccessful stats.
269 - (libeio) added syncfs syscall wrapper.
270 - (libeio) set thread name on linux (ps -L/Hcx, top, gdb).
271 - (libeio) support multiple indepenent working directories.
272 - applied speling corrections by Nicholas Bamber.
273 - tune treescan #threads and #outstanding requests a bit.
274 - reduce the number of file descriptors in use at any one time
275 in treescan, to avoid running out of them (and using too much ram).
276 - take advantage of working directoriy abstractions
277 in aio_scandir and treescan.
278 - reduce compiled size by ~10% by not inlining some key functionality.
279 - added --progress switch to treescan.
280
2814.0 Mon Jul 18 05:01:10 CEST 2011
282 - INCOMPATIBLE CHANGE: fork is no longer supported (indeed, it never was),
283 see FORK BEHAVIOUR in manpage for details.
284 - passes testsuite on win32 now and may actually work
285 (activestate 5.10.1 / MSVC6, YMMV).
286 - (libeio) fix a deadlock where a wakeup signal could be missed when
287 a timeout occured at the same time.
288 - (libeio) added realpath.
289 - (libeio) added fallocate.
290 - (libeio) disabling sendfile on darwin unfortunately broke the emulation.
291 - (libeio) do not acquire any locks when forking.
292 - (libeio) use fewer time() syscalls when waiting for new requests.
293
2943.93 Wed Jun 29 23:44:18 CEST 2011
295 - ECB.H WAS MISSING.
296
2973.92 Wed Jun 29 14:45:41 CEST 2011
298 - ecb.h was missing.
299
3003.91 Wed Jun 29 13:24:42 CEST 2011
301 - (libeio) work around a Linux (and likely FreeBSD and other
302 kernels) bug where sendfile would not transfer all the requested
303 bytes on large transfers, using a heuristic.
304 - buggy sendfile caused aio_move/copy to sometimes fail for big
305 files (fortunately it checks that the whole file has been
306 transferred...)
307 - use libecb for higher performance and higher portability.
308 - (libeio) disable sendfile on darwin, it's too broken.
309 - disable fork tests on !linux, as only linux supports mixing
310 pthread and fork in perl.
311 - document the fact that fork doesn't work anymore when using
312 this module, on anything !GNU/Linux.
313 - increase timeout in t/04_fork.t, as too many CPAN-tester setups
314 run on a 0.1MHz cpu. Or so.
315
3163.9 Fri May 27 02:43:47 CEST 2011
317 - (libeio) fix memory corruption in aio_readdirx for the flags
318 combination READDIR_STAT_ORDER | READDIR_DIRS_FIRST.
319 - add lots of newer POSIX and GNU/Linux-specific open
320 flags.
321
3223.8 Sun Mar 27 12:25:33 CEST 2011
323 - use nonstandard but maybe-working-on-bsd fork technique.
324 - support a max_idle value of 0.
325 - support setting of idle timeout value (IO::AIO::idle_timeout).
326
3273.72 Fri Feb 11 04:25:38 CET 2011
328 - use _POSIX_MEMLOCK_RANGE to detect mlock/munlock.
329 - aio_mknod always used a dev_t value of 0.
330 - new treescan option: --grep.
331 - add more S_IF macros, and major/minor/makedev "macros".
332
3333.71 Thu Dec 30 08:18:46 CET 2010
334 - the numerical result value passed to callbacks did not stringify
335 correctly, due to internal reuse and failure to reset the sv flags.
336 - actually test for posix_[mf]advise, as at least uClibc defines
337 _POSIX_ADVISORY_INFO without actually having any of the required
338 funcitonality. ugh.
339
3403.7 Mon Nov 1 23:00:34 CET 2010
341 - implement/add madvise, mmap, munmap, aio_mlockall, munlockall,
342 aio_mlock, munlock, msync and mtouch to @EXPORT_OK.
343 - document the sad state of affairs w.r.t. pthread on many bsds.
344 - do not enable mmap on systems without _POSIX_MAPPED_FILES
345 (openbsd 4.8).
346 - do not leak memory in IO::AIO::mmap when the scalar already
347 had string-data.
348 - add O_RDWR, O_APPEND and O_EXCL symbols and semi-document
349 them.
350 - cache the result IV, for a minor speedup in the common case.
351 - croak when an mmapped-scalar changes location, to detect
352 user-errors better.
353 - fix aio_readlink prototype.
354
3553.65 Wed Mar 31 02:45:05 CEST 2010
356 - actually use PATH_MAX instead of NAME_MAX for readlink, as to not
357 cut off long pathnames in aio_readlink (based on patch by
358 Rasmus Andersson).
359 - a double fork partially killed the event pipe (great testcase
360 by dormando). affects IO::AIO, BDB and Async::Interrupt.
361 - suck steve's dick and rename our symbols to avoid colliding
362 with nonstandard identifier spam on the broken os x pseudo-os.
363 affects IO::AIO and BDB.
364
3653.6 Mon Jan 11 00:43:39 CET 2010
366 - (libeio) more fixes for the freebsd/apple sendfile - broken by
367 manpage standards, but apparently correct accoridng to actual
368 kernel sources.
369 - add IO::AIO::mmap/munmap support.
370 - add IO::AIO::m(un)lockall support.
371 - clean up manpage.
372
3733.5 Thu Jan 7 21:25:04 CET 2010
374 - (liebio) fix freebsd sendfile (Vanilla Hsu).
375 - (libeio) also fix darwin sendfile that suffered from a similar bug.
376 - add aio_statvfs as interface to statvfs/fstatvfs.
377 - work around buggy symlink() on cygwin in the testsuite.
378 - wtf. freebsd-8.0 actually passes the testsuite! I knew
379 they could implement fork and semaphores one day! cheers!
380
3813.4 Sat Jan 2 15:13:04 CET 2010
382 - (libeio) max_poll_time was not properly converted to ticks.
383 - clarify cancel_subs description.
384 - IO::AIO::sendfile did not actually return the return value
385 from the sendfile call.
386 - implement aio_msync, aio_mtouch.
387 - (libeio) tentatively support darwin in sendfile.
388
3893.31 Thu Nov 12 02:14:29 CET 2009
390 - fix result status documentation of aio_copy, aio_move.
391 - speed up object creation considerably by avoiding
392 hash lookups.
393
3943.3 Wed Aug 5 13:52:58 CEST 2009
395 - use common::sense.
396 - use common schmorp.h header.
397 - allow integers (file descriptors) in addition to file handles.
398 - take advantage of linux' eventfd (but it seems slower on smp?).
399 - use poll not select on posix platforms.
400
4013.261 Wed Jul 1 10:11:51 CEST 2009
402 - more 0S X workarounds (patch by Tokuhiro Matsuno).
403
4043.26 Tue Jun 30 09:33:26 CEST 2009
405 - 0S X of course claims to be posix 2008 but lacks posix_fadvise.
406 try to work around this horribly broken OS in a somewhat hackish
407 way. might help other os's too.
408
4093.25 Sat Jun 27 05:18:26 CEST 2009
410 - added IO::AIO::fadvise and IO::AIO::sendfile.
9 - (libeio) replaced quicksort+insertion sort by a tuned radix 411 - (libeio) replaced quicksort+insertion sort by a tuned radix
10 sort + insertion sort, resulting in comparable runtime (usually 412 sort + insertion sort, resulting in comparable runtime (usually
11 faster) to the old version, but without any ill side effects on 413 faster) to the old version, but without any ill side effects on
12 degenerated (for quicksort) data. 414 degenerated (for quicksort) data.
13 - (libeio) correctly sort dirs by inodes if we have perfect type 415 - (libeio) correctly sort dirs by inodes if we have perfect type
14 knowledge and DIRS_FIRST is used. 416 knowledge and DIRS_FIRST is used.
15 - (libeio) internally the wrong DT_* constants were used, but no 417 - (libeio) internally the wrong DT_* constants were used, but no
16 known system has differing EIO_DT_*/DT_* values, so not an issue. 418 known system has differing EIO_DT_*/DT_* values, so not an issue.
17 - removed a (harmless) assert that was left over on the code 419 - removed a (harmless) assert that was left over on the code
18 but should not have been. 420 but should not have been.
421 - use more correct types (change IO length from IV to VAL64,
422 which makes a difference on systems without 64 bit perls).
19 423
203.23 Sat Jun 13 16:57:58 CEST 2009 4243.23 Sat Jun 13 16:57:58 CEST 2009
21 - fix off-by-one bug in aio_readdir that was introduced in the 425 - fix off-by-one bug in aio_readdir that was introduced in the
22 rushed 3.22 release. 426 rushed 3.22 release.
23 427

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