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Comparing IO-AIO/Changes (file contents):
Revision 1.188 by root, Sun Jun 7 22:37:54 2009 UTC vs.
Revision 1.382 by root, Wed Apr 3 03:03:53 2019 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
8 22
23TODO: rewrite rmtree et al. to support working directories (also speed them up)
24TODO: maybe IO::AIO leaks fds when requests are cancelled? maybe initialise result to -1?
25TODO: aio_wd should use O_PATH on linux, due to lacking O_SEARCH (http://comments.gmane.org/gmane.linux.file-systems/33611)
26 http://www.openwall.com/lists/musl/2013/02/23/4
27TODO: copy_file_range, copy_file_range
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
40
414.72 Wed Apr 3 04:56:03 CEST 2019
42 - (libeio) if fd 0 is available do not use it for aio_wd, as it
43 collides with IO::AIO::CWD.
44 - added IO::AIO::memfd_create.
45 - correctly include <sys/uio.h> in the vmsplice test.
46 - reduce codesize by ~7% on amd64 by declaring more functions
47 as noinline.
48 - documentation fixes and updates.
49 - experimental and undocumented preliminary support for synchronous statx.
50
514.71 Sun Mar 10 13:09:26 CET 2019
52 - due to an error in the linux manpages, the configure tests
53 for readahead, sync_file_range, splice etc. failed. This has been fixed.
54
554.7 Mon Mar 4 11:28:13 CET 2019
56 - majorly speed up scandir for the very special case of a non-POSIX
57 filesystem that nevertheless reports valid dt_type information.
58 The only known filesystem of this type is currently btrfs, which
59 didn't get it's act together to implement POSIX semantics in all
60 these years, and I am tired of waiting.
61 - add IO::AIO::MCL_ONFAULT for mlockall, add IO::AIO::mlockall.
62 - neither sys/mkdev.h nor sys/sysmacros.h were included, even when they
63 were detected by autoconf.
64
654.6 Sat Aug 25 21:58:36 CEST 2018
66 - add st_btime, st_btimesec, st_btimensec and st_gen accessors,
67 mostly for bsds which expose birthtime and st_gen members (netbsd, freebsd
68 but only st_gen on openbsd because they compiled their perl without support
69 for birthtimes).
70 - fix madvise and munlock to properly support negative offsets.
71 - allocate fd for the aio_close at boot time, to guarantee it working
72 later, rather than calling abort when it fails. also avoids
73 close-on-exec race issues after module load.
74 - #undef utime on win32, maybe this helps some reports of utime hangs.
75 - minor doc improvements.
76 - minor configure cleanups.
77 - use $Config{perllibs} instead of libs for configure. might help people
78 who didn't install all perl dependencies (might break things as well).
79
804.54 Tue Aug 14 13:54:48 CEST 2018
81 - include sys/mkdev.h or sys/sysmacros.h if available.
82 - further tweaks to configure invocation for systems requiring --rpath.
83 - no longer rely on custom paths on win32 platforms.
84 - try to work around buggy PAGESIZE macro on solaris.
85
864.53 Tue Aug 14 11:27:50 CEST 2018
87 - add $Config{libs} to LIBS for configure, to work around systems
88 with broken library dependencies (... openbsd).
89
904.52 Sun Aug 12 08:09:45 CEST 2018
91 - config.h.in was missing in distribution.
92
934.51 Sun Aug 12 07:24:14 CEST 2018
94 - complete rework of the autoconf framework: IO::AIO now uses its own
95 config.h, separate from libeio, and tries to test the actual perl
96 environment, not the standard system environment.
97 - provide nanosecond-accracy stat time accessors for both perl and IO::AIO
98 stat functions.
99 - removed non-portable C++ syntax from eio.c.
100 - try to fix readdir tests on cygwin spuriously failing.
101
1024.5 Wed Aug 1 00:23:55 CEST 2018
103 - aio_mtouch touch all pages as requested, not just the first page in most cases.
104 - new function: IO::AIO::mremap, linux-specific mremap, with constants MREMAP_MAYMOVE
105 and MREMAP_FIXED.
106 - add O_ACCMODE.
107 - add (undocumented) MSG_CMSG_CLOEXEC and SOCK_CLOEXEC constants.
108
1094.4 Tue Feb 20 07:54:12 CET 2018
110 - new aio_slurp request.
111 - add (experimental) IO::AIO::eventfd and timerfd* function.
112 - add (experimental) IO::AIO::get_fdlimit and IO::AIO::min_fdlimit.
113 - point out that aio_copy overwrites existing files.
114 - removed filesystem magic number table from aio_statvfs docs as
115 statvfs doesn't actually return this info at all (statfs does).
116 - add a bunch of (mostly linux-specific) constants for use in ioctls
117 (see aio_ioctl docs).
118 - treescan now has a proper manpage and useful --help output.
119 - new option --sync in treescan, to sync everything in a subtree.
120 - changed default for aio_msync flags to MSYNC_SYNC.
121 - document offset/length behaviour of mprotect/madvise.
122 - support linux's renameat2 (via aio_rename2).
123 - add aio_rename2, an aio_rename with flags.
124 - add F_DUPPFD_CLOEXEC, F_OFD_[SG]ETLKW? constants.
125 - add FALLOC_FL_INSERT_RANGE, FALLOC_FL_UNSHARE_RANGE.
126 - (libeio) use posix_close if available.
127 - (libeio) internal close() calls no longer disturb errno.
128 - add IO:AIO::FALLOC_FL_UNSHARE.
129 - update schmorp.h for removal of USE_SOCKETS_AS_HANDLES
130 and better eventfd detection.
131
1324.34 Sun May 1 19:18:24 CEST 2016
133 - def0.h was not properly generated during previous release, causing
134 compile errors on various platforms.
135 - major/minor were accidentally switched (reported by Alexander Lishenyuk).
136 - removed duplicate definition of MAP_HUGETLB, that was found due to
137 a bug in Perl::Tidy (testcase by alaska332@gmail.com).
138 - added (untested!) aio_fcntl, aio_ioctl requests.
139 - (libeio) names set via prctl are truncated to 15 chars + nul, not 16,
140 as manpages-dev originally claimed.
141
1424.33 Mon Jan 18 12:50:10 CET 2016
143 - add IO::AIO::pipe2 function.
144 - added support for FALLOC_FL_COLLAPSE_RANGE and FALLOC_FL_ZERO_RANGE
145 constants.
146 - added support for O_TMPFILE and O_PATH constants.
147 - added support for MAP_FIXED, MAP_GROWSDOWN,MAP_32BIT, MAP_HUGETLB, MAP_STACK
148 consdtants, whether they can be sensibly used or not.
149 - use NO_INIT where applicable.
150 - update libecb.
151 - added stability canary support.
152 - updated linux super magic table to 4.3.3.
153
1544.32 Wed Feb 11 20:32:11 CET 2015
155 - replace off_t by STRLEN where appropriate, should not result in
156 user-visible changes.
157 - update ecb.h for C11 compatibility.
158
1594.31 Tue Jun 3 03:29:27 CEST 2014
160 - work around more 5.20 bugs. backwards compatibility my ass.
161
1624.3 Fri Apr 11 06:22:38 CEST 2014
163 - perl5porters broke Async::Interrupt, BDB, EV, IO::AIO, OpenCL
164 without warning by switching the meaning of USE_SOCKETS_AS_HANDLES
165 in 5.18. What's so attractive about giving a shit about backwards
166 compatibility - I will never understand.
167
1684.2 Sat Jan 25 01:13:14 CET 2014
169 - aio_group could corrupt memory because it didn't restore
170 the stack after req_submit.
171 - be more careful on (e.g. permission) errors in bin/treescan.
172 - work around changes in ExtUtils::MakeMaker.
173 - (libeio) implement aio_realpath for win32.
174 - (xthread) work around compile time bugs in ptw32.
175 - added IO::AIO::pipesize.
176 - (libecb) insignificant update.
177
1784.19 Sun Jan 6 12:47:26 CET 2013
179 - avoid endless loop in fiemap with some XFS files.
180 - in aio_rename and aio_rmdir, specialcase the case of [$wd, "."]
181 and call rename/rmdir instead of renameat/unlinkat.
182
1834.18 Thu Oct 11 07:01:26 CEST 2012
184 - fix unintended xthread_create by intentionalising it :)
185
1864.17 Thu Oct 11 05:19:47 CEST 2012
187 - rename aio_fallocate to aio_allocate, to match documentation.
188 - add list of linux fsid values to aio_statvfs docs.
189 - work around a bug in btrfs' FIEMAP ioctl implementation.
190 - work around AIX bug: statvfs.f_fsid is a struct, not unsigned long
191 as per unix spec.
192
1934.16 Tue Aug 14 05:39:03 CEST 2012
194 - aio_statvfs was wromgly marked for wd emulation, causing
195 it to malfunction for paths.
196 - fix a crash in aio_fiemap, when used on ranges without any
197 extents.
198 - work around linux kernel bug (at least in 3.2): kernel might
199 trash fiemap input arguments.
200 - work around linux kernel bug (at least in 3.2): kernel does not
201 set FIEMAP_EXTENT_LAST on last segment.
202 - work around linux kernel bug (at least in 3.2): kernel silently
203 truncates segment count if a file.
204 - make fh argument of IO::AIO::mmap optional, also add mmap/munmap
205 to quick overview.
206 - splice can corrupt data.
207 - (libeio) remove pread/pwrite emulation.
208 - do not grow mmaped scalars in aio_read.
209 - add FALLOC_FL_PUNCH_HOLE and document fallocate.
210 - provide pread/pwrite for win32, making it link again on native win32.
211
2124.15 Tue Apr 10 06:59:00 CEST 2012
213 - always include linux/types.h for fiemap, for compatibility to
214 ancient systems (Paul Howarth).
215 - experimental support for IO::AIO::splice and ::tee (no aio_...).
216 - provide SEEK_HOLE and SEEK_DATA, if available.
217 - work around (again!) an immensely stupid bug in RHEL, defining
218 autoconf macros in linux system headers (analysed by Paul Howarth).
219
2204.14 Sat Apr 7 02:45:18 CEST 2012
221 - fix stat structure usage on windows, which caused bogus stat results.
222 - (libeio) make readahead emulation behave more like actual readahead by never failing.
223 - new request aio_seek.
224 - new request aio_fiemap.
225 - autogenerate the #ifdef/#define 0 blocks for symbols we export.
226
2274.12 Fri Dec 30 08:51:25 CET 2011
228 - realpath would return a random value if the name was too long,
229 instead of -1.
230 - port to c89.
231
2324.11 Mon Oct 10 00:24:11 CEST 2011
233 - libeio didn't compile on !linux (Paul Howarth).
234
2354.1 Sun Oct 9 10:24:11 CEST 2011
236 - IO::AIO did access uninitialised memory on unsuccessful stats.
237 - (libeio) added syncfs syscall wrapper.
238 - (libeio) set thread name on linux (ps -L/Hcx, top, gdb).
239 - (libeio) support multiple indepenent working directories.
240 - applied speling corrections by Nicholas Bamber.
241 - tune treescan #threads and #outstanding requests a bit.
242 - reduce the number of file descriptors in use at any one time
243 in treescan, to avoid running out of them (and using too much ram).
244 - take advantage of working directoriy abstractions
245 in aio_scandir and treescan.
246 - reduce compiled size by ~10% by not inlining some key functionality.
247 - added --progress switch to treescan.
248
2494.0 Mon Jul 18 05:01:10 CEST 2011
250 - INCOMPATIBLE CHANGE: fork is no longer supported (indeed, it never was),
251 see FORK BEHAVIOUR in manpage for details.
252 - passes testsuite on win32 now and may actually work
253 (activestate 5.10.1 / MSVC6, YMMV).
254 - (libeio) fix a deadlock where a wakeup signal could be missed when
255 a timeout occured at the same time.
256 - (libeio) added realpath.
257 - (libeio) added fallocate.
258 - (libeio) disabling sendfile on darwin unfortunately broke the emulation.
259 - (libeio) do not acquire any locks when forking.
260 - (libeio) use fewer time() syscalls when waiting for new requests.
261
2623.93 Wed Jun 29 23:44:18 CEST 2011
263 - ECB.H WAS MISSING.
264
2653.92 Wed Jun 29 14:45:41 CEST 2011
266 - ecb.h was missing.
267
2683.91 Wed Jun 29 13:24:42 CEST 2011
269 - (libeio) work around a Linux (and likely FreeBSD and other
270 kernels) bug where sendfile would not transfer all the requested
271 bytes on large transfers, using a heuristic.
272 - buggy sendfile caused aio_move/copy to sometimes fail for big
273 files (fortunately it checks that the whole file has been
274 transferred...)
275 - use libecb for higher performance and higher portability.
276 - (libeio) disable sendfile on darwin, it's too broken.
277 - disable fork tests on !linux, as only linux supports mixing
278 pthread and fork in perl.
279 - document the fact that fork doesn't work anymore when using
280 this module, on anything !GNU/Linux.
281 - increase timeout in t/04_fork.t, as too many CPAN-tester setups
282 run on a 0.1MHz cpu. Or so.
283
2843.9 Fri May 27 02:43:47 CEST 2011
285 - (libeio) fix memory corruption in aio_readdirx for the flags
286 combination READDIR_STAT_ORDER | READDIR_DIRS_FIRST.
287 - add lots of newer POSIX and GNU/Linux-specific open
288 flags.
289
2903.8 Sun Mar 27 12:25:33 CEST 2011
291 - use nonstandard but maybe-working-on-bsd fork technique.
292 - support a max_idle value of 0.
293 - support setting of idle timeout value (IO::AIO::idle_timeout).
294
2953.72 Fri Feb 11 04:25:38 CET 2011
296 - use _POSIX_MEMLOCK_RANGE to detect mlock/munlock.
297 - aio_mknod always used a dev_t value of 0.
298 - new treescan option: --grep.
299 - add more S_IF macros, and major/minor/makedev "macros".
300
3013.71 Thu Dec 30 08:18:46 CET 2010
302 - the numerical result value passed to callbacks did not stringify
303 correctly, due to internal reuse and failure to reset the sv flags.
304 - actually test for posix_[mf]advise, as at least uClibc defines
305 _POSIX_ADVISORY_INFO without actually having any of the required
306 funcitonality. ugh.
307
3083.7 Mon Nov 1 23:00:34 CET 2010
309 - implement/add madvise, mmap, munmap, aio_mlockall, munlockall,
310 aio_mlock, munlock, msync and mtouch to @EXPORT_OK.
311 - document the sad state of affairs w.r.t. pthread on many bsds.
312 - do not enable mmap on systems without _POSIX_MAPPED_FILES
313 (openbsd 4.8).
314 - do not leak memory in IO::AIO::mmap when the scalar already
315 had string-data.
316 - add O_RDWR, O_APPEND and O_EXCL symbols and semi-document
317 them.
318 - cache the result IV, for a minor speedup in the common case.
319 - croak when an mmapped-scalar changes location, to detect
320 user-errors better.
321 - fix aio_readlink prototype.
322
3233.65 Wed Mar 31 02:45:05 CEST 2010
324 - actually use PATH_MAX instead of NAME_MAX for readlink, as to not
325 cut off long pathnames in aio_readlink (based on patch by
326 Rasmus Andersson).
327 - a double fork partially killed the event pipe (great testcase
328 by dormando). affects IO::AIO, BDB and Async::Interrupt.
329 - suck steve's dick and rename our symbols to avoid colliding
330 with nonstandard identifier spam on the broken os x pseudo-os.
331 affects IO::AIO and BDB.
332
3333.6 Mon Jan 11 00:43:39 CET 2010
334 - (libeio) more fixes for the freebsd/apple sendfile - broken by
335 manpage standards, but apparently correct accoridng to actual
336 kernel sources.
337 - add IO::AIO::mmap/munmap support.
338 - add IO::AIO::m(un)lockall support.
339 - clean up manpage.
340
3413.5 Thu Jan 7 21:25:04 CET 2010
342 - (liebio) fix freebsd sendfile (Vanilla Hsu).
343 - (libeio) also fix darwin sendfile that suffered from a similar bug.
344 - add aio_statvfs as interface to statvfs/fstatvfs.
345 - work around buggy symlink() on cygwin in the testsuite.
346 - wtf. freebsd-8.0 actually passes the testsuite! I knew
347 they could implement fork and semaphores one day! cheers!
348
3493.4 Sat Jan 2 15:13:04 CET 2010
350 - (libeio) max_poll_time was not properly converted to ticks.
351 - clarify cancel_subs description.
352 - IO::AIO::sendfile did not actually return the return value
353 from the sendfile call.
354 - implement aio_msync, aio_mtouch.
355 - (libeio) tentatively support darwin in sendfile.
356
3573.31 Thu Nov 12 02:14:29 CET 2009
358 - fix result status documentation of aio_copy, aio_move.
359 - speed up object creation considerably by avoiding
360 hash lookups.
361
3623.3 Wed Aug 5 13:52:58 CEST 2009
363 - use common::sense.
364 - use common schmorp.h header.
365 - allow integers (file descriptors) in addition to file handles.
366 - take advantage of linux' eventfd (but it seems slower on smp?).
367 - use poll not select on posix platforms.
368
3693.261 Wed Jul 1 10:11:51 CEST 2009
370 - more 0S X workarounds (patch by Tokuhiro Matsuno).
371
3723.26 Tue Jun 30 09:33:26 CEST 2009
373 - 0S X of course claims to be posix 2008 but lacks posix_fadvise.
374 try to work around this horribly broken OS in a somewhat hackish
375 way. might help other os's too.
376
3773.25 Sat Jun 27 05:18:26 CEST 2009
378 - added IO::AIO::fadvise and IO::AIO::sendfile.
379 - (libeio) replaced quicksort+insertion sort by a tuned radix
380 sort + insertion sort, resulting in comparable runtime (usually
381 faster) to the old version, but without any ill side effects on
382 degenerated (for quicksort) data.
383 - (libeio) correctly sort dirs by inodes if we have perfect type
384 knowledge and DIRS_FIRST is used.
385 - (libeio) internally the wrong DT_* constants were used, but no
386 known system has differing EIO_DT_*/DT_* values, so not an issue.
387 - removed a (harmless) assert that was left over on the code
388 but should not have been.
389 - use more correct types (change IO length from IV to VAL64,
390 which makes a difference on systems without 64 bit perls).
391
3923.23 Sat Jun 13 16:57:58 CEST 2009
393 - fix off-by-one bug in aio_readdir that was introduced in the
394 rushed 3.22 release.
395
3963.22 Sat Jun 13 15:32:40 CEST 2009
397 - speed up readdirx sort algorithm slightly.
398 - bin/treescan was missing from distro tarball.
399
4003.21 Fri Jun 12 18:45:53 CEST 2009
9 - new options --dirs and --files for treescan. 401 - new options --dirs and --files for treescan.
10 - install bin/treescan by default. 402 - install bin/treescan by default.
403 - (libeio) aio_readdir can now be cancelled while executing.
404 - fix a printf format string for 64 bit systems (could lead
405 to problems on big endian 64 bit systems).
406 - do not use qsort() but our own algorithm: glibc initialises
407 the whole locale and I/O subsystem inside qsort, causing
408 a stack overflow on 32 bit machines. The new sort uses much less
409 stack and is more than twice as fast in typical situations.
11 410
123.2 Sun Jun 7 20:30:05 CEST 2009 4113.2 Sun Jun 7 20:30:05 CEST 2009
13 - (libeio) pwrite emulation was even more flawed than intended and did 412 - (libeio) pwrite emulation was even more flawed than intended and did
14 not restore the file offset. 413 not restore the file offset.
15 - add aio_readdirx, which can return inode and filetype and sort 414 - add aio_readdirx, which can return inode and filetype and sort

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