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Comparing IO-AIO/Changes (file contents):
Revision 1.201 by root, Wed Jul 1 08:12:18 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.?
8TODO: fallocate, if it wouldn't be so useless. 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
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.
9 400
103.261 Wed Jul 1 10:11:51 CEST 2009 4013.261 Wed Jul 1 10:11:51 CEST 2009
11 - more OS X workarounds (patch by Tokuhiro Matsuno). 402 - more 0S X workarounds (patch by Tokuhiro Matsuno).
12 403
133.26 Tue Jun 30 09:33:26 CEST 2009 4043.26 Tue Jun 30 09:33:26 CEST 2009
14 - os x of course claims posix 2008 but lacks posix_fadvise. try to work 405 - 0S X of course claims to be posix 2008 but lacks posix_fadvise.
15 around this horribly broken OS in a somewhat hackish way. might help 406 try to work around this horribly broken OS in a somewhat hackish
16 other os's too. 407 way. might help other os's too.
17 408
183.25 Sat Jun 27 05:18:26 CEST 2009 4093.25 Sat Jun 27 05:18:26 CEST 2009
19 - added IO::AIO::fadvise and IO::AIO::sendfile. 410 - added IO::AIO::fadvise and IO::AIO::sendfile.
20 - (libeio) replaced quicksort+insertion sort by a tuned radix 411 - (libeio) replaced quicksort+insertion sort by a tuned radix
21 sort + insertion sort, resulting in comparable runtime (usually 412 sort + insertion sort, resulting in comparable runtime (usually

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