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Comparing IO-AIO/Changes (file contents):
Revision 1.186 by root, Sun Jun 7 18:31:18 2009 UTC vs.
Revision 1.389 by root, Thu Sep 3 17:20:45 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/fsconfig 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?)
41
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 threqad model, maybe bump some defaults?
46 - IO::AIO::splice and IO::AIO::tee didn't properly return
47 64 bit values.
48 - added IO::AIO::accept4.
49 - add various F_SEAL related fcntl constants.
50 - removed experimentla marker for fdlimit functions.
51 - fiemap now includes the last segment even if it overflows
52 the end offset, which is arguably the corretc behaviour.
53
544.72 Wed Apr 3 04:56:03 CEST 2019
55 - (libeio) if fd 0 is available do not use it for aio_wd, as it
56 collides with IO::AIO::CWD.
57 - added IO::AIO::memfd_create.
58 - correctly include <sys/uio.h> in the vmsplice test.
59 - reduce codesize by ~7% on amd64 by declaring more functions
60 as noinline.
61 - documentation fixes and updates.
62 - experimental and undocumented preliminary support for synchronous statx.
63
644.71 Sun Mar 10 13:09:26 CET 2019
65 - due to an error in the linux manpages, the configure tests
66 for readahead, sync_file_range, splice etc. failed. This has been fixed.
67
684.7 Mon Mar 4 11:28:13 CET 2019
69 - majorly speed up scandir for the very special case of a non-POSIX
70 filesystem that nevertheless reports valid dt_type information.
71 The only known filesystem of this type is currently btrfs, which
72 didn't get it's act together to implement POSIX semantics in all
73 these years, and I am tired of waiting.
74 - add IO::AIO::MCL_ONFAULT for mlockall, add IO::AIO::mlockall.
75 - neither sys/mkdev.h nor sys/sysmacros.h were included, even when they
76 were detected by autoconf.
77
784.6 Sat Aug 25 21:58:36 CEST 2018
79 - add st_btime, st_btimesec, st_btimensec and st_gen accessors,
80 mostly for bsds which expose birthtime and st_gen members (netbsd, freebsd
81 but only st_gen on openbsd because they compiled their perl without support
82 for birthtimes).
83 - fix madvise and munlock to properly support negative offsets.
84 - allocate fd for the aio_close at boot time, to guarantee it working
85 later, rather than calling abort when it fails. also avoids
86 close-on-exec race issues after module load.
87 - #undef utime on win32, maybe this helps some reports of utime hangs.
88 - minor doc improvements.
89 - minor configure cleanups.
90 - use $Config{perllibs} instead of libs for configure. might help people
91 who didn't install all perl dependencies (might break things as well).
92
934.54 Tue Aug 14 13:54:48 CEST 2018
94 - include sys/mkdev.h or sys/sysmacros.h if available.
95 - further tweaks to configure invocation for systems requiring --rpath.
96 - no longer rely on custom paths on win32 platforms.
97 - try to work around buggy PAGESIZE macro on solaris.
98
994.53 Tue Aug 14 11:27:50 CEST 2018
100 - add $Config{libs} to LIBS for configure, to work around systems
101 with broken library dependencies (... openbsd).
102
1034.52 Sun Aug 12 08:09:45 CEST 2018
104 - config.h.in was missing in distribution.
105
1064.51 Sun Aug 12 07:24:14 CEST 2018
107 - complete rework of the autoconf framework: IO::AIO now uses its own
108 config.h, separate from libeio, and tries to test the actual perl
109 environment, not the standard system environment.
110 - provide nanosecond-accracy stat time accessors for both perl and IO::AIO
111 stat functions.
112 - removed non-portable C++ syntax from eio.c.
113 - try to fix readdir tests on cygwin spuriously failing.
114
1154.5 Wed Aug 1 00:23:55 CEST 2018
116 - aio_mtouch touch all pages as requested, not just the first page in most cases.
117 - new function: IO::AIO::mremap, linux-specific mremap, with constants MREMAP_MAYMOVE
118 and MREMAP_FIXED.
119 - add O_ACCMODE.
120 - add (undocumented) MSG_CMSG_CLOEXEC and SOCK_CLOEXEC constants.
121
1224.4 Tue Feb 20 07:54:12 CET 2018
123 - new aio_slurp request.
124 - add (experimental) IO::AIO::eventfd and timerfd* function.
125 - add (experimental) IO::AIO::get_fdlimit and IO::AIO::min_fdlimit.
126 - point out that aio_copy overwrites existing files.
127 - removed filesystem magic number table from aio_statvfs docs as
128 statvfs doesn't actually return this info at all (statfs does).
129 - add a bunch of (mostly linux-specific) constants for use in ioctls
130 (see aio_ioctl docs).
131 - treescan now has a proper manpage and useful --help output.
132 - new option --sync in treescan, to sync everything in a subtree.
133 - changed default for aio_msync flags to MSYNC_SYNC.
134 - document offset/length behaviour of mprotect/madvise.
135 - support linux's renameat2 (via aio_rename2).
136 - add aio_rename2, an aio_rename with flags.
137 - add F_DUPPFD_CLOEXEC, F_OFD_[SG]ETLKW? constants.
138 - add FALLOC_FL_INSERT_RANGE, FALLOC_FL_UNSHARE_RANGE.
139 - (libeio) use posix_close if available.
140 - (libeio) internal close() calls no longer disturb errno.
141 - add IO:AIO::FALLOC_FL_UNSHARE.
142 - update schmorp.h for removal of USE_SOCKETS_AS_HANDLES
143 and better eventfd detection.
144
1454.34 Sun May 1 19:18:24 CEST 2016
146 - def0.h was not properly generated during previous release, causing
147 compile errors on various platforms.
148 - major/minor were accidentally switched (reported by Alexander Lishenyuk).
149 - removed duplicate definition of MAP_HUGETLB, that was found due to
150 a bug in Perl::Tidy (testcase by alaska332@gmail.com).
151 - added (untested!) aio_fcntl, aio_ioctl requests.
152 - (libeio) names set via prctl are truncated to 15 chars + nul, not 16,
153 as manpages-dev originally claimed.
154
1554.33 Mon Jan 18 12:50:10 CET 2016
156 - add IO::AIO::pipe2 function.
157 - added support for FALLOC_FL_COLLAPSE_RANGE and FALLOC_FL_ZERO_RANGE
158 constants.
159 - added support for O_TMPFILE and O_PATH constants.
160 - added support for MAP_FIXED, MAP_GROWSDOWN,MAP_32BIT, MAP_HUGETLB, MAP_STACK
161 consdtants, whether they can be sensibly used or not.
162 - use NO_INIT where applicable.
163 - update libecb.
164 - added stability canary support.
165 - updated linux super magic table to 4.3.3.
166
1674.32 Wed Feb 11 20:32:11 CET 2015
168 - replace off_t by STRLEN where appropriate, should not result in
169 user-visible changes.
170 - update ecb.h for C11 compatibility.
171
1724.31 Tue Jun 3 03:29:27 CEST 2014
173 - work around more 5.20 bugs. backwards compatibility my ass.
174
1754.3 Fri Apr 11 06:22:38 CEST 2014
176 - perl5porters broke Async::Interrupt, BDB, EV, IO::AIO, OpenCL
177 without warning by switching the meaning of USE_SOCKETS_AS_HANDLES
178 in 5.18. What's so attractive about giving a shit about backwards
179 compatibility - I will never understand.
180
1814.2 Sat Jan 25 01:13:14 CET 2014
182 - aio_group could corrupt memory because it didn't restore
183 the stack after req_submit.
184 - be more careful on (e.g. permission) errors in bin/treescan.
185 - work around changes in ExtUtils::MakeMaker.
186 - (libeio) implement aio_realpath for win32.
187 - (xthread) work around compile time bugs in ptw32.
188 - added IO::AIO::pipesize.
189 - (libecb) insignificant update.
190
1914.19 Sun Jan 6 12:47:26 CET 2013
192 - avoid endless loop in fiemap with some XFS files.
193 - in aio_rename and aio_rmdir, specialcase the case of [$wd, "."]
194 and call rename/rmdir instead of renameat/unlinkat.
195
1964.18 Thu Oct 11 07:01:26 CEST 2012
197 - fix unintended xthread_create by intentionalising it :)
198
1994.17 Thu Oct 11 05:19:47 CEST 2012
200 - rename aio_fallocate to aio_allocate, to match documentation.
201 - add list of linux fsid values to aio_statvfs docs.
202 - work around a bug in btrfs' FIEMAP ioctl implementation.
203 - work around AIX bug: statvfs.f_fsid is a struct, not unsigned long
204 as per unix spec.
205
2064.16 Tue Aug 14 05:39:03 CEST 2012
207 - aio_statvfs was wromgly marked for wd emulation, causing
208 it to malfunction for paths.
209 - fix a crash in aio_fiemap, when used on ranges without any
210 extents.
211 - work around linux kernel bug (at least in 3.2): kernel might
212 trash fiemap input arguments.
213 - work around linux kernel bug (at least in 3.2): kernel does not
214 set FIEMAP_EXTENT_LAST on last segment.
215 - work around linux kernel bug (at least in 3.2): kernel silently
216 truncates segment count if a file.
217 - make fh argument of IO::AIO::mmap optional, also add mmap/munmap
218 to quick overview.
219 - splice can corrupt data.
220 - (libeio) remove pread/pwrite emulation.
221 - do not grow mmaped scalars in aio_read.
222 - add FALLOC_FL_PUNCH_HOLE and document fallocate.
223 - provide pread/pwrite for win32, making it link again on native win32.
224
2254.15 Tue Apr 10 06:59:00 CEST 2012
226 - always include linux/types.h for fiemap, for compatibility to
227 ancient systems (Paul Howarth).
228 - experimental support for IO::AIO::splice and ::tee (no aio_...).
229 - provide SEEK_HOLE and SEEK_DATA, if available.
230 - work around (again!) an immensely stupid bug in RHEL, defining
231 autoconf macros in linux system headers (analysed by Paul Howarth).
232
2334.14 Sat Apr 7 02:45:18 CEST 2012
234 - fix stat structure usage on windows, which caused bogus stat results.
235 - (libeio) make readahead emulation behave more like actual readahead by never failing.
236 - new request aio_seek.
237 - new request aio_fiemap.
238 - autogenerate the #ifdef/#define 0 blocks for symbols we export.
239
2404.12 Fri Dec 30 08:51:25 CET 2011
241 - realpath would return a random value if the name was too long,
242 instead of -1.
243 - port to c89.
244
2454.11 Mon Oct 10 00:24:11 CEST 2011
246 - libeio didn't compile on !linux (Paul Howarth).
247
2484.1 Sun Oct 9 10:24:11 CEST 2011
249 - IO::AIO did access uninitialised memory on unsuccessful stats.
250 - (libeio) added syncfs syscall wrapper.
251 - (libeio) set thread name on linux (ps -L/Hcx, top, gdb).
252 - (libeio) support multiple indepenent working directories.
253 - applied speling corrections by Nicholas Bamber.
254 - tune treescan #threads and #outstanding requests a bit.
255 - reduce the number of file descriptors in use at any one time
256 in treescan, to avoid running out of them (and using too much ram).
257 - take advantage of working directoriy abstractions
258 in aio_scandir and treescan.
259 - reduce compiled size by ~10% by not inlining some key functionality.
260 - added --progress switch to treescan.
261
2624.0 Mon Jul 18 05:01:10 CEST 2011
263 - INCOMPATIBLE CHANGE: fork is no longer supported (indeed, it never was),
264 see FORK BEHAVIOUR in manpage for details.
265 - passes testsuite on win32 now and may actually work
266 (activestate 5.10.1 / MSVC6, YMMV).
267 - (libeio) fix a deadlock where a wakeup signal could be missed when
268 a timeout occured at the same time.
269 - (libeio) added realpath.
270 - (libeio) added fallocate.
271 - (libeio) disabling sendfile on darwin unfortunately broke the emulation.
272 - (libeio) do not acquire any locks when forking.
273 - (libeio) use fewer time() syscalls when waiting for new requests.
274
2753.93 Wed Jun 29 23:44:18 CEST 2011
276 - ECB.H WAS MISSING.
277
2783.92 Wed Jun 29 14:45:41 CEST 2011
279 - ecb.h was missing.
280
2813.91 Wed Jun 29 13:24:42 CEST 2011
282 - (libeio) work around a Linux (and likely FreeBSD and other
283 kernels) bug where sendfile would not transfer all the requested
284 bytes on large transfers, using a heuristic.
285 - buggy sendfile caused aio_move/copy to sometimes fail for big
286 files (fortunately it checks that the whole file has been
287 transferred...)
288 - use libecb for higher performance and higher portability.
289 - (libeio) disable sendfile on darwin, it's too broken.
290 - disable fork tests on !linux, as only linux supports mixing
291 pthread and fork in perl.
292 - document the fact that fork doesn't work anymore when using
293 this module, on anything !GNU/Linux.
294 - increase timeout in t/04_fork.t, as too many CPAN-tester setups
295 run on a 0.1MHz cpu. Or so.
296
2973.9 Fri May 27 02:43:47 CEST 2011
298 - (libeio) fix memory corruption in aio_readdirx for the flags
299 combination READDIR_STAT_ORDER | READDIR_DIRS_FIRST.
300 - add lots of newer POSIX and GNU/Linux-specific open
301 flags.
302
3033.8 Sun Mar 27 12:25:33 CEST 2011
304 - use nonstandard but maybe-working-on-bsd fork technique.
305 - support a max_idle value of 0.
306 - support setting of idle timeout value (IO::AIO::idle_timeout).
307
3083.72 Fri Feb 11 04:25:38 CET 2011
309 - use _POSIX_MEMLOCK_RANGE to detect mlock/munlock.
310 - aio_mknod always used a dev_t value of 0.
311 - new treescan option: --grep.
312 - add more S_IF macros, and major/minor/makedev "macros".
313
3143.71 Thu Dec 30 08:18:46 CET 2010
315 - the numerical result value passed to callbacks did not stringify
316 correctly, due to internal reuse and failure to reset the sv flags.
317 - actually test for posix_[mf]advise, as at least uClibc defines
318 _POSIX_ADVISORY_INFO without actually having any of the required
319 funcitonality. ugh.
320
3213.7 Mon Nov 1 23:00:34 CET 2010
322 - implement/add madvise, mmap, munmap, aio_mlockall, munlockall,
323 aio_mlock, munlock, msync and mtouch to @EXPORT_OK.
324 - document the sad state of affairs w.r.t. pthread on many bsds.
325 - do not enable mmap on systems without _POSIX_MAPPED_FILES
326 (openbsd 4.8).
327 - do not leak memory in IO::AIO::mmap when the scalar already
328 had string-data.
329 - add O_RDWR, O_APPEND and O_EXCL symbols and semi-document
330 them.
331 - cache the result IV, for a minor speedup in the common case.
332 - croak when an mmapped-scalar changes location, to detect
333 user-errors better.
334 - fix aio_readlink prototype.
335
3363.65 Wed Mar 31 02:45:05 CEST 2010
337 - actually use PATH_MAX instead of NAME_MAX for readlink, as to not
338 cut off long pathnames in aio_readlink (based on patch by
339 Rasmus Andersson).
340 - a double fork partially killed the event pipe (great testcase
341 by dormando). affects IO::AIO, BDB and Async::Interrupt.
342 - suck steve's dick and rename our symbols to avoid colliding
343 with nonstandard identifier spam on the broken os x pseudo-os.
344 affects IO::AIO and BDB.
345
3463.6 Mon Jan 11 00:43:39 CET 2010
347 - (libeio) more fixes for the freebsd/apple sendfile - broken by
348 manpage standards, but apparently correct accoridng to actual
349 kernel sources.
350 - add IO::AIO::mmap/munmap support.
351 - add IO::AIO::m(un)lockall support.
352 - clean up manpage.
353
3543.5 Thu Jan 7 21:25:04 CET 2010
355 - (liebio) fix freebsd sendfile (Vanilla Hsu).
356 - (libeio) also fix darwin sendfile that suffered from a similar bug.
357 - add aio_statvfs as interface to statvfs/fstatvfs.
358 - work around buggy symlink() on cygwin in the testsuite.
359 - wtf. freebsd-8.0 actually passes the testsuite! I knew
360 they could implement fork and semaphores one day! cheers!
361
3623.4 Sat Jan 2 15:13:04 CET 2010
363 - (libeio) max_poll_time was not properly converted to ticks.
364 - clarify cancel_subs description.
365 - IO::AIO::sendfile did not actually return the return value
366 from the sendfile call.
367 - implement aio_msync, aio_mtouch.
368 - (libeio) tentatively support darwin in sendfile.
369
3703.31 Thu Nov 12 02:14:29 CET 2009
371 - fix result status documentation of aio_copy, aio_move.
372 - speed up object creation considerably by avoiding
373 hash lookups.
374
3753.3 Wed Aug 5 13:52:58 CEST 2009
376 - use common::sense.
377 - use common schmorp.h header.
378 - allow integers (file descriptors) in addition to file handles.
379 - take advantage of linux' eventfd (but it seems slower on smp?).
380 - use poll not select on posix platforms.
381
3823.261 Wed Jul 1 10:11:51 CEST 2009
383 - more 0S X workarounds (patch by Tokuhiro Matsuno).
384
3853.26 Tue Jun 30 09:33:26 CEST 2009
386 - 0S X of course claims to be posix 2008 but lacks posix_fadvise.
387 try to work around this horribly broken OS in a somewhat hackish
388 way. might help other os's too.
389
3903.25 Sat Jun 27 05:18:26 CEST 2009
391 - added IO::AIO::fadvise and IO::AIO::sendfile.
392 - (libeio) replaced quicksort+insertion sort by a tuned radix
393 sort + insertion sort, resulting in comparable runtime (usually
394 faster) to the old version, but without any ill side effects on
395 degenerated (for quicksort) data.
396 - (libeio) correctly sort dirs by inodes if we have perfect type
397 knowledge and DIRS_FIRST is used.
398 - (libeio) internally the wrong DT_* constants were used, but no
399 known system has differing EIO_DT_*/DT_* values, so not an issue.
400 - removed a (harmless) assert that was left over on the code
401 but should not have been.
402 - use more correct types (change IO length from IV to VAL64,
403 which makes a difference on systems without 64 bit perls).
404
4053.23 Sat Jun 13 16:57:58 CEST 2009
406 - fix off-by-one bug in aio_readdir that was introduced in the
407 rushed 3.22 release.
408
4093.22 Sat Jun 13 15:32:40 CEST 2009
410 - speed up readdirx sort algorithm slightly.
411 - bin/treescan was missing from distro tarball.
412
4133.21 Fri Jun 12 18:45:53 CEST 2009
414 - new options --dirs and --files for treescan.
415 - install bin/treescan by default.
416 - (libeio) aio_readdir can now be cancelled while executing.
417 - fix a printf format string for 64 bit systems (could lead
418 to problems on big endian 64 bit systems).
419 - do not use qsort() but our own algorithm: glibc initialises
420 the whole locale and I/O subsystem inside qsort, causing
421 a stack overflow on 32 bit machines. The new sort uses much less
422 stack and is more than twice as fast in typical situations.
8 423
93.2 Sun Jun 7 20:30:05 CEST 2009 4243.2 Sun Jun 7 20:30:05 CEST 2009
10 - (libeio) pwrite emulation was even more flawed than intended and did 425 - (libeio) pwrite emulation was even more flawed than intended and did
11 not restore the file offset. 426 not restore the file offset.
12 - add aio_readdirx, which can return inode and filetype and sort 427 - add aio_readdirx, which can return inode and filetype and sort

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