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Comparing IO-AIO/Changes (file contents):
Revision 1.175 by root, Wed Oct 22 18:15:36 2008 UTC vs.
Revision 1.383 by root, Wed Apr 3 03:09:04 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/sync_file_range? (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
9 - added aio_sync_file_range. 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
41 - add various F_SEAL related fcntl constants.
42
434.72 Wed Apr 3 04:56:03 CEST 2019
44 - (libeio) if fd 0 is available do not use it for aio_wd, as it
45 collides with IO::AIO::CWD.
46 - added IO::AIO::memfd_create.
47 - correctly include <sys/uio.h> in the vmsplice test.
48 - reduce codesize by ~7% on amd64 by declaring more functions
49 as noinline.
50 - documentation fixes and updates.
51 - experimental and undocumented preliminary support for synchronous statx.
52
534.71 Sun Mar 10 13:09:26 CET 2019
54 - due to an error in the linux manpages, the configure tests
55 for readahead, sync_file_range, splice etc. failed. This has been fixed.
56
574.7 Mon Mar 4 11:28:13 CET 2019
58 - majorly speed up scandir for the very special case of a non-POSIX
59 filesystem that nevertheless reports valid dt_type information.
60 The only known filesystem of this type is currently btrfs, which
61 didn't get it's act together to implement POSIX semantics in all
62 these years, and I am tired of waiting.
63 - add IO::AIO::MCL_ONFAULT for mlockall, add IO::AIO::mlockall.
64 - neither sys/mkdev.h nor sys/sysmacros.h were included, even when they
65 were detected by autoconf.
66
674.6 Sat Aug 25 21:58:36 CEST 2018
68 - add st_btime, st_btimesec, st_btimensec and st_gen accessors,
69 mostly for bsds which expose birthtime and st_gen members (netbsd, freebsd
70 but only st_gen on openbsd because they compiled their perl without support
71 for birthtimes).
72 - fix madvise and munlock to properly support negative offsets.
73 - allocate fd for the aio_close at boot time, to guarantee it working
74 later, rather than calling abort when it fails. also avoids
75 close-on-exec race issues after module load.
76 - #undef utime on win32, maybe this helps some reports of utime hangs.
77 - minor doc improvements.
78 - minor configure cleanups.
79 - use $Config{perllibs} instead of libs for configure. might help people
80 who didn't install all perl dependencies (might break things as well).
81
824.54 Tue Aug 14 13:54:48 CEST 2018
83 - include sys/mkdev.h or sys/sysmacros.h if available.
84 - further tweaks to configure invocation for systems requiring --rpath.
85 - no longer rely on custom paths on win32 platforms.
86 - try to work around buggy PAGESIZE macro on solaris.
87
884.53 Tue Aug 14 11:27:50 CEST 2018
89 - add $Config{libs} to LIBS for configure, to work around systems
90 with broken library dependencies (... openbsd).
91
924.52 Sun Aug 12 08:09:45 CEST 2018
93 - config.h.in was missing in distribution.
94
954.51 Sun Aug 12 07:24:14 CEST 2018
96 - complete rework of the autoconf framework: IO::AIO now uses its own
97 config.h, separate from libeio, and tries to test the actual perl
98 environment, not the standard system environment.
99 - provide nanosecond-accracy stat time accessors for both perl and IO::AIO
100 stat functions.
101 - removed non-portable C++ syntax from eio.c.
102 - try to fix readdir tests on cygwin spuriously failing.
103
1044.5 Wed Aug 1 00:23:55 CEST 2018
105 - aio_mtouch touch all pages as requested, not just the first page in most cases.
106 - new function: IO::AIO::mremap, linux-specific mremap, with constants MREMAP_MAYMOVE
107 and MREMAP_FIXED.
108 - add O_ACCMODE.
109 - add (undocumented) MSG_CMSG_CLOEXEC and SOCK_CLOEXEC constants.
110
1114.4 Tue Feb 20 07:54:12 CET 2018
112 - new aio_slurp request.
113 - add (experimental) IO::AIO::eventfd and timerfd* function.
114 - add (experimental) IO::AIO::get_fdlimit and IO::AIO::min_fdlimit.
115 - point out that aio_copy overwrites existing files.
116 - removed filesystem magic number table from aio_statvfs docs as
117 statvfs doesn't actually return this info at all (statfs does).
118 - add a bunch of (mostly linux-specific) constants for use in ioctls
119 (see aio_ioctl docs).
120 - treescan now has a proper manpage and useful --help output.
121 - new option --sync in treescan, to sync everything in a subtree.
122 - changed default for aio_msync flags to MSYNC_SYNC.
123 - document offset/length behaviour of mprotect/madvise.
124 - support linux's renameat2 (via aio_rename2).
125 - add aio_rename2, an aio_rename with flags.
126 - add F_DUPPFD_CLOEXEC, F_OFD_[SG]ETLKW? constants.
127 - add FALLOC_FL_INSERT_RANGE, FALLOC_FL_UNSHARE_RANGE.
128 - (libeio) use posix_close if available.
129 - (libeio) internal close() calls no longer disturb errno.
130 - add IO:AIO::FALLOC_FL_UNSHARE.
131 - update schmorp.h for removal of USE_SOCKETS_AS_HANDLES
132 and better eventfd detection.
133
1344.34 Sun May 1 19:18:24 CEST 2016
135 - def0.h was not properly generated during previous release, causing
136 compile errors on various platforms.
137 - major/minor were accidentally switched (reported by Alexander Lishenyuk).
138 - removed duplicate definition of MAP_HUGETLB, that was found due to
139 a bug in Perl::Tidy (testcase by alaska332@gmail.com).
140 - added (untested!) aio_fcntl, aio_ioctl requests.
141 - (libeio) names set via prctl are truncated to 15 chars + nul, not 16,
142 as manpages-dev originally claimed.
143
1444.33 Mon Jan 18 12:50:10 CET 2016
145 - add IO::AIO::pipe2 function.
146 - added support for FALLOC_FL_COLLAPSE_RANGE and FALLOC_FL_ZERO_RANGE
147 constants.
148 - added support for O_TMPFILE and O_PATH constants.
149 - added support for MAP_FIXED, MAP_GROWSDOWN,MAP_32BIT, MAP_HUGETLB, MAP_STACK
150 consdtants, whether they can be sensibly used or not.
151 - use NO_INIT where applicable.
152 - update libecb.
153 - added stability canary support.
154 - updated linux super magic table to 4.3.3.
155
1564.32 Wed Feb 11 20:32:11 CET 2015
157 - replace off_t by STRLEN where appropriate, should not result in
158 user-visible changes.
159 - update ecb.h for C11 compatibility.
160
1614.31 Tue Jun 3 03:29:27 CEST 2014
162 - work around more 5.20 bugs. backwards compatibility my ass.
163
1644.3 Fri Apr 11 06:22:38 CEST 2014
165 - perl5porters broke Async::Interrupt, BDB, EV, IO::AIO, OpenCL
166 without warning by switching the meaning of USE_SOCKETS_AS_HANDLES
167 in 5.18. What's so attractive about giving a shit about backwards
168 compatibility - I will never understand.
169
1704.2 Sat Jan 25 01:13:14 CET 2014
171 - aio_group could corrupt memory because it didn't restore
172 the stack after req_submit.
173 - be more careful on (e.g. permission) errors in bin/treescan.
174 - work around changes in ExtUtils::MakeMaker.
175 - (libeio) implement aio_realpath for win32.
176 - (xthread) work around compile time bugs in ptw32.
177 - added IO::AIO::pipesize.
178 - (libecb) insignificant update.
179
1804.19 Sun Jan 6 12:47:26 CET 2013
181 - avoid endless loop in fiemap with some XFS files.
182 - in aio_rename and aio_rmdir, specialcase the case of [$wd, "."]
183 and call rename/rmdir instead of renameat/unlinkat.
184
1854.18 Thu Oct 11 07:01:26 CEST 2012
186 - fix unintended xthread_create by intentionalising it :)
187
1884.17 Thu Oct 11 05:19:47 CEST 2012
189 - rename aio_fallocate to aio_allocate, to match documentation.
190 - add list of linux fsid values to aio_statvfs docs.
191 - work around a bug in btrfs' FIEMAP ioctl implementation.
192 - work around AIX bug: statvfs.f_fsid is a struct, not unsigned long
193 as per unix spec.
194
1954.16 Tue Aug 14 05:39:03 CEST 2012
196 - aio_statvfs was wromgly marked for wd emulation, causing
197 it to malfunction for paths.
198 - fix a crash in aio_fiemap, when used on ranges without any
199 extents.
200 - work around linux kernel bug (at least in 3.2): kernel might
201 trash fiemap input arguments.
202 - work around linux kernel bug (at least in 3.2): kernel does not
203 set FIEMAP_EXTENT_LAST on last segment.
204 - work around linux kernel bug (at least in 3.2): kernel silently
205 truncates segment count if a file.
206 - make fh argument of IO::AIO::mmap optional, also add mmap/munmap
207 to quick overview.
208 - splice can corrupt data.
209 - (libeio) remove pread/pwrite emulation.
210 - do not grow mmaped scalars in aio_read.
211 - add FALLOC_FL_PUNCH_HOLE and document fallocate.
212 - provide pread/pwrite for win32, making it link again on native win32.
213
2144.15 Tue Apr 10 06:59:00 CEST 2012
215 - always include linux/types.h for fiemap, for compatibility to
216 ancient systems (Paul Howarth).
217 - experimental support for IO::AIO::splice and ::tee (no aio_...).
218 - provide SEEK_HOLE and SEEK_DATA, if available.
219 - work around (again!) an immensely stupid bug in RHEL, defining
220 autoconf macros in linux system headers (analysed by Paul Howarth).
221
2224.14 Sat Apr 7 02:45:18 CEST 2012
223 - fix stat structure usage on windows, which caused bogus stat results.
224 - (libeio) make readahead emulation behave more like actual readahead by never failing.
225 - new request aio_seek.
226 - new request aio_fiemap.
227 - autogenerate the #ifdef/#define 0 blocks for symbols we export.
228
2294.12 Fri Dec 30 08:51:25 CET 2011
230 - realpath would return a random value if the name was too long,
231 instead of -1.
232 - port to c89.
233
2344.11 Mon Oct 10 00:24:11 CEST 2011
235 - libeio didn't compile on !linux (Paul Howarth).
236
2374.1 Sun Oct 9 10:24:11 CEST 2011
238 - IO::AIO did access uninitialised memory on unsuccessful stats.
239 - (libeio) added syncfs syscall wrapper.
240 - (libeio) set thread name on linux (ps -L/Hcx, top, gdb).
241 - (libeio) support multiple indepenent working directories.
242 - applied speling corrections by Nicholas Bamber.
243 - tune treescan #threads and #outstanding requests a bit.
244 - reduce the number of file descriptors in use at any one time
245 in treescan, to avoid running out of them (and using too much ram).
246 - take advantage of working directoriy abstractions
247 in aio_scandir and treescan.
248 - reduce compiled size by ~10% by not inlining some key functionality.
249 - added --progress switch to treescan.
250
2514.0 Mon Jul 18 05:01:10 CEST 2011
252 - INCOMPATIBLE CHANGE: fork is no longer supported (indeed, it never was),
253 see FORK BEHAVIOUR in manpage for details.
254 - passes testsuite on win32 now and may actually work
255 (activestate 5.10.1 / MSVC6, YMMV).
256 - (libeio) fix a deadlock where a wakeup signal could be missed when
257 a timeout occured at the same time.
258 - (libeio) added realpath.
259 - (libeio) added fallocate.
260 - (libeio) disabling sendfile on darwin unfortunately broke the emulation.
261 - (libeio) do not acquire any locks when forking.
262 - (libeio) use fewer time() syscalls when waiting for new requests.
263
2643.93 Wed Jun 29 23:44:18 CEST 2011
265 - ECB.H WAS MISSING.
266
2673.92 Wed Jun 29 14:45:41 CEST 2011
268 - ecb.h was missing.
269
2703.91 Wed Jun 29 13:24:42 CEST 2011
271 - (libeio) work around a Linux (and likely FreeBSD and other
272 kernels) bug where sendfile would not transfer all the requested
273 bytes on large transfers, using a heuristic.
274 - buggy sendfile caused aio_move/copy to sometimes fail for big
275 files (fortunately it checks that the whole file has been
276 transferred...)
277 - use libecb for higher performance and higher portability.
278 - (libeio) disable sendfile on darwin, it's too broken.
279 - disable fork tests on !linux, as only linux supports mixing
280 pthread and fork in perl.
281 - document the fact that fork doesn't work anymore when using
282 this module, on anything !GNU/Linux.
283 - increase timeout in t/04_fork.t, as too many CPAN-tester setups
284 run on a 0.1MHz cpu. Or so.
285
2863.9 Fri May 27 02:43:47 CEST 2011
287 - (libeio) fix memory corruption in aio_readdirx for the flags
288 combination READDIR_STAT_ORDER | READDIR_DIRS_FIRST.
289 - add lots of newer POSIX and GNU/Linux-specific open
290 flags.
291
2923.8 Sun Mar 27 12:25:33 CEST 2011
293 - use nonstandard but maybe-working-on-bsd fork technique.
294 - support a max_idle value of 0.
295 - support setting of idle timeout value (IO::AIO::idle_timeout).
296
2973.72 Fri Feb 11 04:25:38 CET 2011
298 - use _POSIX_MEMLOCK_RANGE to detect mlock/munlock.
299 - aio_mknod always used a dev_t value of 0.
300 - new treescan option: --grep.
301 - add more S_IF macros, and major/minor/makedev "macros".
302
3033.71 Thu Dec 30 08:18:46 CET 2010
304 - the numerical result value passed to callbacks did not stringify
305 correctly, due to internal reuse and failure to reset the sv flags.
306 - actually test for posix_[mf]advise, as at least uClibc defines
307 _POSIX_ADVISORY_INFO without actually having any of the required
308 funcitonality. ugh.
309
3103.7 Mon Nov 1 23:00:34 CET 2010
311 - implement/add madvise, mmap, munmap, aio_mlockall, munlockall,
312 aio_mlock, munlock, msync and mtouch to @EXPORT_OK.
313 - document the sad state of affairs w.r.t. pthread on many bsds.
314 - do not enable mmap on systems without _POSIX_MAPPED_FILES
315 (openbsd 4.8).
316 - do not leak memory in IO::AIO::mmap when the scalar already
317 had string-data.
318 - add O_RDWR, O_APPEND and O_EXCL symbols and semi-document
319 them.
320 - cache the result IV, for a minor speedup in the common case.
321 - croak when an mmapped-scalar changes location, to detect
322 user-errors better.
323 - fix aio_readlink prototype.
324
3253.65 Wed Mar 31 02:45:05 CEST 2010
326 - actually use PATH_MAX instead of NAME_MAX for readlink, as to not
327 cut off long pathnames in aio_readlink (based on patch by
328 Rasmus Andersson).
329 - a double fork partially killed the event pipe (great testcase
330 by dormando). affects IO::AIO, BDB and Async::Interrupt.
331 - suck steve's dick and rename our symbols to avoid colliding
332 with nonstandard identifier spam on the broken os x pseudo-os.
333 affects IO::AIO and BDB.
334
3353.6 Mon Jan 11 00:43:39 CET 2010
336 - (libeio) more fixes for the freebsd/apple sendfile - broken by
337 manpage standards, but apparently correct accoridng to actual
338 kernel sources.
339 - add IO::AIO::mmap/munmap support.
340 - add IO::AIO::m(un)lockall support.
341 - clean up manpage.
342
3433.5 Thu Jan 7 21:25:04 CET 2010
344 - (liebio) fix freebsd sendfile (Vanilla Hsu).
345 - (libeio) also fix darwin sendfile that suffered from a similar bug.
346 - add aio_statvfs as interface to statvfs/fstatvfs.
347 - work around buggy symlink() on cygwin in the testsuite.
348 - wtf. freebsd-8.0 actually passes the testsuite! I knew
349 they could implement fork and semaphores one day! cheers!
350
3513.4 Sat Jan 2 15:13:04 CET 2010
352 - (libeio) max_poll_time was not properly converted to ticks.
353 - clarify cancel_subs description.
354 - IO::AIO::sendfile did not actually return the return value
355 from the sendfile call.
356 - implement aio_msync, aio_mtouch.
357 - (libeio) tentatively support darwin in sendfile.
358
3593.31 Thu Nov 12 02:14:29 CET 2009
360 - fix result status documentation of aio_copy, aio_move.
361 - speed up object creation considerably by avoiding
362 hash lookups.
363
3643.3 Wed Aug 5 13:52:58 CEST 2009
365 - use common::sense.
366 - use common schmorp.h header.
367 - allow integers (file descriptors) in addition to file handles.
368 - take advantage of linux' eventfd (but it seems slower on smp?).
369 - use poll not select on posix platforms.
370
3713.261 Wed Jul 1 10:11:51 CEST 2009
372 - more 0S X workarounds (patch by Tokuhiro Matsuno).
373
3743.26 Tue Jun 30 09:33:26 CEST 2009
375 - 0S X of course claims to be posix 2008 but lacks posix_fadvise.
376 try to work around this horribly broken OS in a somewhat hackish
377 way. might help other os's too.
378
3793.25 Sat Jun 27 05:18:26 CEST 2009
380 - added IO::AIO::fadvise and IO::AIO::sendfile.
381 - (libeio) replaced quicksort+insertion sort by a tuned radix
382 sort + insertion sort, resulting in comparable runtime (usually
383 faster) to the old version, but without any ill side effects on
384 degenerated (for quicksort) data.
385 - (libeio) correctly sort dirs by inodes if we have perfect type
386 knowledge and DIRS_FIRST is used.
387 - (libeio) internally the wrong DT_* constants were used, but no
388 known system has differing EIO_DT_*/DT_* values, so not an issue.
389 - removed a (harmless) assert that was left over on the code
390 but should not have been.
391 - use more correct types (change IO length from IV to VAL64,
392 which makes a difference on systems without 64 bit perls).
393
3943.23 Sat Jun 13 16:57:58 CEST 2009
395 - fix off-by-one bug in aio_readdir that was introduced in the
396 rushed 3.22 release.
397
3983.22 Sat Jun 13 15:32:40 CEST 2009
399 - speed up readdirx sort algorithm slightly.
400 - bin/treescan was missing from distro tarball.
401
4023.21 Fri Jun 12 18:45:53 CEST 2009
403 - new options --dirs and --files for treescan.
404 - install bin/treescan by default.
405 - (libeio) aio_readdir can now be cancelled while executing.
406 - fix a printf format string for 64 bit systems (could lead
407 to problems on big endian 64 bit systems).
408 - do not use qsort() but our own algorithm: glibc initialises
409 the whole locale and I/O subsystem inside qsort, causing
410 a stack overflow on 32 bit machines. The new sort uses much less
411 stack and is more than twice as fast in typical situations.
412
4133.2 Sun Jun 7 20:30:05 CEST 2009
414 - (libeio) pwrite emulation was even more flawed than intended and did
415 not restore the file offset.
416 - add aio_readdirx, which can return inode and filetype and sort
417 the names in various ways.
418 - unfortunately, utime, chmod, chown on an open file that has just
419 been written can easily block, which caused aio_copy to block the
420 process. no more!
421 - no longer rely on dst path in aio_copy when futime is available.
422
4233.19 Tue Apr 21 22:05:21 CEST 2009
424 - more perl 5.10 workarounds for aio_read and write.
425 - aio_write no longer modifies the sv (if possible).
426 - aio_read now works correctly with magic values.
427
4283.18 Sun Apr 19 21:17:32 CEST 2009
429 - better diagnostics when some aio_* functions get passed an illegal fh.
430 - try to avoid crashes due to incompatible 5.10 API changes. grmbl.
431
4323.17 Thu Nov 20 08:45:36 CET 2008
433 - (libeio) added aio_sync_file_range (untested).
434 - add aio_busy to @IO::AIO::AIO_REQ.
10 435
113.16 Wed Oct 22 18:28:01 CEST 2008 4363.16 Wed Oct 22 18:28:01 CEST 2008
12 - use SvREFCNT_inc instead of SvREFCNT_inc_NN in a non-speed critical 437 - use SvREFCNT_inc instead of SvREFCNT_inc_NN in a non-speed critical
13 part to improve portability to perl 5.8 (reported by szymon). 438 part to improve portability to perl 5.8 (reported by szymon).
14 439

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