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Comparing IO-AIO/Changes (file contents):
Revision 1.161 by root, Thu Jun 19 21:25:30 2008 UTC vs.
Revision 1.381 by root, Mon Mar 18 23:52:09 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: http://lwn.net/Articles/593918/ SHMEM_SET_SEALS, SHMEM_GET_SEALS, SEAL_SHRINK, SEAL_GROW, SEAL_WRITE, int memfd_create(const char *name, u64 size, u64 flags);, MFD_CLOEXEC, int fd = open("/tmp", O_RDWR | O_TMPFILE | O_EXCL, S_IRWXU);
20TODO: name_to_handle_At + open_by_handle_at = clone fds
21TODO: lchown
22TODO: mount/umount2/MS_* flags
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: copy_file_range, copy_file_range
29TODO: FIDEDUPERANGE, file_ioctl.c
30TODO: mincore
31TODO: SOCK_CLOEXEc etc.
32TODO: unlinkat flags, linkat flags, statat, renameat2 flags
33TODO: https://kernelnewbies.org/Linux_4.11
34TODO: define useful rules for [[$wd, $path], $path] &c and implement them
35TODO: https://github.com/coreutils/coreutils/blob/master/src/stat.c maybe IO::AIO::FSID
36TODO: mlock2, MLOCK_ONFAULT
37TODO: dup3, pipe2, accept4
38TODO: dump config.log when automated testign and configure fails
39TODO: ns time resolution in utime
40TODO: statx
41
42 - (libeio) if fd 0 is available do not use it for aio_wd, as it
43 collides with IO::AIO::CWD.
44 - correctly include <sys/uio.h> in the vmsplice test.
45 - reduce codesize by ~7% on amd64 by declaring more functions
46 as noinline.
47
484.71 Sun Mar 10 13:09:26 CET 2019
49 - due to an error in the linux manpages, the configure tests
50 for readahead, sync_file_range, splice etc. failed. This has been fixed.
51
524.7 Mon Mar 4 11:28:13 CET 2019
53 - majorly speed up scandir for the very special case of a non-POSIX
54 filesystem that nevertheless reports valid dt_type information.
55 The only known filesystem of this type is currently btrfs, which
56 didn't get it's act together to implement POSIX semantics in all
57 these years, and I am tired of waiting.
58 - add IO::AIO::MCL_ONFAULT for mlockall, add IO::AIO::mlockall.
59 - neither sys/mkdev.h nor sys/sysmacros.h were included, even when they
60 were detected by autoconf.
61
624.6 Sat Aug 25 21:58:36 CEST 2018
63 - add st_btime, st_btimesec, st_btimensec and st_gen accessors,
64 mostly for bsds which expose birthtime and st_gen members (netbsd, freebsd
65 but only st_gen on openbsd because they compiled their perl without support
66 for birthtimes).
67 - fix madvise and munlock to properly support negative offsets.
68 - allocate fd for the aio_close at boot time, to guarantee it working
69 later, rather than calling abort when it fails. also avoids
70 close-on-exec race issues after module load.
71 - #undef utime on win32, maybe this helps some reports of utime hangs.
72 - minor doc improvements.
73 - minor configure cleanups.
74 - use $Config{perllibs} instead of libs for configure. might help people
75 who didn't install all perl dependencies (might break things as well).
76
774.54 Tue Aug 14 13:54:48 CEST 2018
78 - include sys/mkdev.h or sys/sysmacros.h if available.
79 - further tweaks to configure invocation for systems requiring --rpath.
80 - no longer rely on custom paths on win32 platforms.
81 - try to work around buggy PAGESIZE macro on solaris.
82
834.53 Tue Aug 14 11:27:50 CEST 2018
84 - add $Config{libs} to LIBS for configure, to work around systems
85 with broken library dependencies (... openbsd).
86
874.52 Sun Aug 12 08:09:45 CEST 2018
88 - config.h.in was missing in distribution.
89
904.51 Sun Aug 12 07:24:14 CEST 2018
91 - complete rework of the autoconf framework: IO::AIO now uses its own
92 config.h, separate from libeio, and tries to test the actual perl
93 environment, not the standard system environment.
94 - provide nanosecond-accracy stat time accessors for both perl and IO::AIO
95 stat functions.
96 - removed non-portable C++ syntax from eio.c.
97 - try to fix readdir tests on cygwin spuriously failing.
98
994.5 Wed Aug 1 00:23:55 CEST 2018
100 - aio_mtouch touch all pages as requested, not just the first page in most cases.
101 - new function: IO::AIO::mremap, linux-specific mremap, with constants MREMAP_MAYMOVE
102 and MREMAP_FIXED.
103 - add O_ACCMODE.
104 - add (undocumented) MSG_CMSG_CLOEXEC and SOCK_CLOEXEC constants.
105
1064.4 Tue Feb 20 07:54:12 CET 2018
107 - new aio_slurp request.
108 - add (experimental) IO::AIO::eventfd and timerfd* function.
109 - add (experimental) IO::AIO::get_fdlimit and IO::AIO::min_fdlimit.
110 - point out that aio_copy overwrites existing files.
111 - removed filesystem magic number table from aio_statvfs docs as
112 statvfs doesn't actually return this info at all (statfs does).
113 - add a bunch of (mostly linux-specific) constants for use in ioctls
114 (see aio_ioctl docs).
115 - treescan now has a proper manpage and useful --help output.
116 - new option --sync in treescan, to sync everything in a subtree.
117 - changed default for aio_msync flags to MSYNC_SYNC.
118 - document offset/length behaviour of mprotect/madvise.
119 - support linux's renameat2 (via aio_rename2).
120 - add aio_rename2, an aio_rename with flags.
121 - add F_DUPPFD_CLOEXEC, F_OFD_[SG]ETLKW? constants.
122 - add FALLOC_FL_INSERT_RANGE, FALLOC_FL_UNSHARE_RANGE.
123 - (libeio) use posix_close if available.
124 - (libeio) internal close() calls no longer disturb errno.
125 - add IO:AIO::FALLOC_FL_UNSHARE.
126 - update schmorp.h for removal of USE_SOCKETS_AS_HANDLES
127 and better eventfd detection.
128
1294.34 Sun May 1 19:18:24 CEST 2016
130 - def0.h was not properly generated during previous release, causing
131 compile errors on various platforms.
132 - major/minor were accidentally switched (reported by Alexander Lishenyuk).
133 - removed duplicate definition of MAP_HUGETLB, that was found due to
134 a bug in Perl::Tidy (testcase by alaska332@gmail.com).
135 - added (untested!) aio_fcntl, aio_ioctl requests.
136 - (libeio) names set via prctl are truncated to 15 chars + nul, not 16,
137 as manpages-dev originally claimed.
138
1394.33 Mon Jan 18 12:50:10 CET 2016
140 - add IO::AIO::pipe2 function.
141 - added support for FALLOC_FL_COLLAPSE_RANGE and FALLOC_FL_ZERO_RANGE
142 constants.
143 - added support for O_TMPFILE and O_PATH constants.
144 - added support for MAP_FIXED, MAP_GROWSDOWN,MAP_32BIT, MAP_HUGETLB, MAP_STACK
145 consdtants, whether they can be sensibly used or not.
146 - use NO_INIT where applicable.
147 - update libecb.
148 - added stability canary support.
149 - updated linux super magic table to 4.3.3.
150
1514.32 Wed Feb 11 20:32:11 CET 2015
152 - replace off_t by STRLEN where appropriate, should not result in
153 user-visible changes.
154 - update ecb.h for C11 compatibility.
155
1564.31 Tue Jun 3 03:29:27 CEST 2014
157 - work around more 5.20 bugs. backwards compatibility my ass.
158
1594.3 Fri Apr 11 06:22:38 CEST 2014
160 - perl5porters broke Async::Interrupt, BDB, EV, IO::AIO, OpenCL
161 without warning by switching the meaning of USE_SOCKETS_AS_HANDLES
162 in 5.18. What's so attractive about giving a shit about backwards
163 compatibility - I will never understand.
164
1654.2 Sat Jan 25 01:13:14 CET 2014
166 - aio_group could corrupt memory because it didn't restore
167 the stack after req_submit.
168 - be more careful on (e.g. permission) errors in bin/treescan.
169 - work around changes in ExtUtils::MakeMaker.
170 - (libeio) implement aio_realpath for win32.
171 - (xthread) work around compile time bugs in ptw32.
172 - added IO::AIO::pipesize.
173 - (libecb) insignificant update.
174
1754.19 Sun Jan 6 12:47:26 CET 2013
176 - avoid endless loop in fiemap with some XFS files.
177 - in aio_rename and aio_rmdir, specialcase the case of [$wd, "."]
178 and call rename/rmdir instead of renameat/unlinkat.
179
1804.18 Thu Oct 11 07:01:26 CEST 2012
181 - fix unintended xthread_create by intentionalising it :)
182
1834.17 Thu Oct 11 05:19:47 CEST 2012
184 - rename aio_fallocate to aio_allocate, to match documentation.
185 - add list of linux fsid values to aio_statvfs docs.
186 - work around a bug in btrfs' FIEMAP ioctl implementation.
187 - work around AIX bug: statvfs.f_fsid is a struct, not unsigned long
188 as per unix spec.
189
1904.16 Tue Aug 14 05:39:03 CEST 2012
191 - aio_statvfs was wromgly marked for wd emulation, causing
192 it to malfunction for paths.
193 - fix a crash in aio_fiemap, when used on ranges without any
194 extents.
195 - work around linux kernel bug (at least in 3.2): kernel might
196 trash fiemap input arguments.
197 - work around linux kernel bug (at least in 3.2): kernel does not
198 set FIEMAP_EXTENT_LAST on last segment.
199 - work around linux kernel bug (at least in 3.2): kernel silently
200 truncates segment count if a file.
201 - make fh argument of IO::AIO::mmap optional, also add mmap/munmap
202 to quick overview.
203 - splice can corrupt data.
204 - (libeio) remove pread/pwrite emulation.
205 - do not grow mmaped scalars in aio_read.
206 - add FALLOC_FL_PUNCH_HOLE and document fallocate.
207 - provide pread/pwrite for win32, making it link again on native win32.
208
2094.15 Tue Apr 10 06:59:00 CEST 2012
210 - always include linux/types.h for fiemap, for compatibility to
211 ancient systems (Paul Howarth).
212 - experimental support for IO::AIO::splice and ::tee (no aio_...).
213 - provide SEEK_HOLE and SEEK_DATA, if available.
214 - work around (again!) an immensely stupid bug in RHEL, defining
215 autoconf macros in linux system headers (analysed by Paul Howarth).
216
2174.14 Sat Apr 7 02:45:18 CEST 2012
218 - fix stat structure usage on windows, which caused bogus stat results.
219 - (libeio) make readahead emulation behave more like actual readahead by never failing.
220 - new request aio_seek.
221 - new request aio_fiemap.
222 - autogenerate the #ifdef/#define 0 blocks for symbols we export.
223
2244.12 Fri Dec 30 08:51:25 CET 2011
225 - realpath would return a random value if the name was too long,
226 instead of -1.
227 - port to c89.
228
2294.11 Mon Oct 10 00:24:11 CEST 2011
230 - libeio didn't compile on !linux (Paul Howarth).
231
2324.1 Sun Oct 9 10:24:11 CEST 2011
233 - IO::AIO did access uninitialised memory on unsuccessful stats.
234 - (libeio) added syncfs syscall wrapper.
235 - (libeio) set thread name on linux (ps -L/Hcx, top, gdb).
236 - (libeio) support multiple indepenent working directories.
237 - applied speling corrections by Nicholas Bamber.
238 - tune treescan #threads and #outstanding requests a bit.
239 - reduce the number of file descriptors in use at any one time
240 in treescan, to avoid running out of them (and using too much ram).
241 - take advantage of working directoriy abstractions
242 in aio_scandir and treescan.
243 - reduce compiled size by ~10% by not inlining some key functionality.
244 - added --progress switch to treescan.
245
2464.0 Mon Jul 18 05:01:10 CEST 2011
247 - INCOMPATIBLE CHANGE: fork is no longer supported (indeed, it never was),
248 see FORK BEHAVIOUR in manpage for details.
249 - passes testsuite on win32 now and may actually work
250 (activestate 5.10.1 / MSVC6, YMMV).
251 - (libeio) fix a deadlock where a wakeup signal could be missed when
252 a timeout occured at the same time.
253 - (libeio) added realpath.
254 - (libeio) added fallocate.
255 - (libeio) disabling sendfile on darwin unfortunately broke the emulation.
256 - (libeio) do not acquire any locks when forking.
257 - (libeio) use fewer time() syscalls when waiting for new requests.
258
2593.93 Wed Jun 29 23:44:18 CEST 2011
260 - ECB.H WAS MISSING.
261
2623.92 Wed Jun 29 14:45:41 CEST 2011
263 - ecb.h was missing.
264
2653.91 Wed Jun 29 13:24:42 CEST 2011
266 - (libeio) work around a Linux (and likely FreeBSD and other
267 kernels) bug where sendfile would not transfer all the requested
268 bytes on large transfers, using a heuristic.
269 - buggy sendfile caused aio_move/copy to sometimes fail for big
270 files (fortunately it checks that the whole file has been
271 transferred...)
272 - use libecb for higher performance and higher portability.
273 - (libeio) disable sendfile on darwin, it's too broken.
274 - disable fork tests on !linux, as only linux supports mixing
275 pthread and fork in perl.
276 - document the fact that fork doesn't work anymore when using
277 this module, on anything !GNU/Linux.
278 - increase timeout in t/04_fork.t, as too many CPAN-tester setups
279 run on a 0.1MHz cpu. Or so.
280
2813.9 Fri May 27 02:43:47 CEST 2011
282 - (libeio) fix memory corruption in aio_readdirx for the flags
283 combination READDIR_STAT_ORDER | READDIR_DIRS_FIRST.
284 - add lots of newer POSIX and GNU/Linux-specific open
285 flags.
286
2873.8 Sun Mar 27 12:25:33 CEST 2011
288 - use nonstandard but maybe-working-on-bsd fork technique.
289 - support a max_idle value of 0.
290 - support setting of idle timeout value (IO::AIO::idle_timeout).
291
2923.72 Fri Feb 11 04:25:38 CET 2011
293 - use _POSIX_MEMLOCK_RANGE to detect mlock/munlock.
294 - aio_mknod always used a dev_t value of 0.
295 - new treescan option: --grep.
296 - add more S_IF macros, and major/minor/makedev "macros".
297
2983.71 Thu Dec 30 08:18:46 CET 2010
299 - the numerical result value passed to callbacks did not stringify
300 correctly, due to internal reuse and failure to reset the sv flags.
301 - actually test for posix_[mf]advise, as at least uClibc defines
302 _POSIX_ADVISORY_INFO without actually having any of the required
303 funcitonality. ugh.
304
3053.7 Mon Nov 1 23:00:34 CET 2010
306 - implement/add madvise, mmap, munmap, aio_mlockall, munlockall,
307 aio_mlock, munlock, msync and mtouch to @EXPORT_OK.
308 - document the sad state of affairs w.r.t. pthread on many bsds.
309 - do not enable mmap on systems without _POSIX_MAPPED_FILES
310 (openbsd 4.8).
311 - do not leak memory in IO::AIO::mmap when the scalar already
312 had string-data.
313 - add O_RDWR, O_APPEND and O_EXCL symbols and semi-document
314 them.
315 - cache the result IV, for a minor speedup in the common case.
316 - croak when an mmapped-scalar changes location, to detect
317 user-errors better.
318 - fix aio_readlink prototype.
319
3203.65 Wed Mar 31 02:45:05 CEST 2010
321 - actually use PATH_MAX instead of NAME_MAX for readlink, as to not
322 cut off long pathnames in aio_readlink (based on patch by
323 Rasmus Andersson).
324 - a double fork partially killed the event pipe (great testcase
325 by dormando). affects IO::AIO, BDB and Async::Interrupt.
326 - suck steve's dick and rename our symbols to avoid colliding
327 with nonstandard identifier spam on the broken os x pseudo-os.
328 affects IO::AIO and BDB.
329
3303.6 Mon Jan 11 00:43:39 CET 2010
331 - (libeio) more fixes for the freebsd/apple sendfile - broken by
332 manpage standards, but apparently correct accoridng to actual
333 kernel sources.
334 - add IO::AIO::mmap/munmap support.
335 - add IO::AIO::m(un)lockall support.
336 - clean up manpage.
337
3383.5 Thu Jan 7 21:25:04 CET 2010
339 - (liebio) fix freebsd sendfile (Vanilla Hsu).
340 - (libeio) also fix darwin sendfile that suffered from a similar bug.
341 - add aio_statvfs as interface to statvfs/fstatvfs.
342 - work around buggy symlink() on cygwin in the testsuite.
343 - wtf. freebsd-8.0 actually passes the testsuite! I knew
344 they could implement fork and semaphores one day! cheers!
345
3463.4 Sat Jan 2 15:13:04 CET 2010
347 - (libeio) max_poll_time was not properly converted to ticks.
348 - clarify cancel_subs description.
349 - IO::AIO::sendfile did not actually return the return value
350 from the sendfile call.
351 - implement aio_msync, aio_mtouch.
352 - (libeio) tentatively support darwin in sendfile.
353
3543.31 Thu Nov 12 02:14:29 CET 2009
355 - fix result status documentation of aio_copy, aio_move.
356 - speed up object creation considerably by avoiding
357 hash lookups.
358
3593.3 Wed Aug 5 13:52:58 CEST 2009
360 - use common::sense.
361 - use common schmorp.h header.
362 - allow integers (file descriptors) in addition to file handles.
363 - take advantage of linux' eventfd (but it seems slower on smp?).
364 - use poll not select on posix platforms.
365
3663.261 Wed Jul 1 10:11:51 CEST 2009
367 - more 0S X workarounds (patch by Tokuhiro Matsuno).
368
3693.26 Tue Jun 30 09:33:26 CEST 2009
370 - 0S X of course claims to be posix 2008 but lacks posix_fadvise.
371 try to work around this horribly broken OS in a somewhat hackish
372 way. might help other os's too.
373
3743.25 Sat Jun 27 05:18:26 CEST 2009
375 - added IO::AIO::fadvise and IO::AIO::sendfile.
376 - (libeio) replaced quicksort+insertion sort by a tuned radix
377 sort + insertion sort, resulting in comparable runtime (usually
378 faster) to the old version, but without any ill side effects on
379 degenerated (for quicksort) data.
380 - (libeio) correctly sort dirs by inodes if we have perfect type
381 knowledge and DIRS_FIRST is used.
382 - (libeio) internally the wrong DT_* constants were used, but no
383 known system has differing EIO_DT_*/DT_* values, so not an issue.
384 - removed a (harmless) assert that was left over on the code
385 but should not have been.
386 - use more correct types (change IO length from IV to VAL64,
387 which makes a difference on systems without 64 bit perls).
388
3893.23 Sat Jun 13 16:57:58 CEST 2009
390 - fix off-by-one bug in aio_readdir that was introduced in the
391 rushed 3.22 release.
392
3933.22 Sat Jun 13 15:32:40 CEST 2009
394 - speed up readdirx sort algorithm slightly.
395 - bin/treescan was missing from distro tarball.
396
3973.21 Fri Jun 12 18:45:53 CEST 2009
398 - new options --dirs and --files for treescan.
399 - install bin/treescan by default.
400 - (libeio) aio_readdir can now be cancelled while executing.
401 - fix a printf format string for 64 bit systems (could lead
402 to problems on big endian 64 bit systems).
403 - do not use qsort() but our own algorithm: glibc initialises
404 the whole locale and I/O subsystem inside qsort, causing
405 a stack overflow on 32 bit machines. The new sort uses much less
406 stack and is more than twice as fast in typical situations.
407
4083.2 Sun Jun 7 20:30:05 CEST 2009
409 - (libeio) pwrite emulation was even more flawed than intended and did
410 not restore the file offset.
411 - add aio_readdirx, which can return inode and filetype and sort
412 the names in various ways.
413 - unfortunately, utime, chmod, chown on an open file that has just
414 been written can easily block, which caused aio_copy to block the
415 process. no more!
416 - no longer rely on dst path in aio_copy when futime is available.
417
4183.19 Tue Apr 21 22:05:21 CEST 2009
419 - more perl 5.10 workarounds for aio_read and write.
420 - aio_write no longer modifies the sv (if possible).
421 - aio_read now works correctly with magic values.
422
4233.18 Sun Apr 19 21:17:32 CEST 2009
424 - better diagnostics when some aio_* functions get passed an illegal fh.
425 - try to avoid crashes due to incompatible 5.10 API changes. grmbl.
426
4273.17 Thu Nov 20 08:45:36 CET 2008
428 - (libeio) added aio_sync_file_range (untested).
429 - add aio_busy to @IO::AIO::AIO_REQ.
430
4313.16 Wed Oct 22 18:28:01 CEST 2008
432 - use SvREFCNT_inc instead of SvREFCNT_inc_NN in a non-speed critical
433 part to improve portability to perl 5.8 (reported by szymon).
434
4353.15 Mon Oct 13 00:39:55 CEST 2008
436 - automatic removal of feeders was broken.
437 - (libeio) use a more robust method to detect whether a feeder
438 has added something to the group or not.
439
4403.1 Thu Oct 2 13:34:40 CEST 2008
441 - pre-deref the passed callback object, for increased speed
442 and decreased memory usage.
443 - call on_next_submit callback even for aio_group - impact unknown,
444 but seems more correct.
445 - $req->cb now returns the original callback.
446 - (libeio) pass EIO_GROUP/aio_group requests through the queue without
447 requiring a thread switch.
448 - (libeio) status code of aio_futime and aio_utime was always passed 0.
449 - do some other ยต-optimisations.
450
4513.07 Sat Aug 2 16:06:13 CEST 2008
452 - do not include LIBS in autoconf tests.
453
4543.06 Tue Jul 15 12:41:32 CEST 2008
455 - move preadwritelock definition before it's first reference,
456 to make it compile again on broken platforms (they still exist)
457 or badly cofngiured perls (redhat...), reported by Rob Bloodgood.
8 458
93.05 Thu Jun 19 23:23:52 CEST 2008 4593.05 Thu Jun 19 23:23:52 CEST 2008
10 - work around perl overriding readdir etc. with thread-unsafe 460 - work around perl overriding readdir etc. with thread-unsafe
11 (sic!) versions. 461 (sic!) versions.
12 462

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