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Comparing IO-AIO/Changes (file contents):
Revision 1.144 by root, Sat May 10 19:25:33 2008 UTC vs.
Revision 1.365 by root, Tue Aug 14 11:44:52 2018 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
8 23
93.0 24TODO: rewrite rmtree et al. to support working directories (also speed them up)
10 - lots of incompatible changes: 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: maybe copy some hacks from PerlIOStdio_invalidate_fileno for faster close on certain platforms
29TODO: copy_file_range, copy_file_range
30TODO: FIDEDUPERANGE, file_ioctl.c
31TODO: mincore
32TODO: SOCK_CLOEXEc etc.
33TODO: unlinkat flags, linkat flags, statat, renameat2 flags
34TODO: https://kernelnewbies.org/Linux_4.11
35TODO: define useful rules for [[$wd, $path], $path] &c and implement them
36TODO: https://github.com/coreutils/coreutils/blob/master/src/stat.c maybe IO::AIO::FSID
37TODO: mlock2, MLOCK_ONFAULT
38TODO: dup3, pipe2, accept4
39
40 - include sys/sysmacros.h if available.
41
424.53 Tue Aug 14 11:27:50 CEST 2018
43 - add $Config{libs} to LIBS for configure, to work around systems
44 with broken library dependencies (... openbsd).
45
464.52 Sun Aug 12 08:09:45 CEST 2018
47 - config.h.in was missing in distribution.
48
494.51 Sun Aug 12 07:24:14 CEST 2018
50 - complete rework of the autoconf framework: IO::AIO now uses its own
51 config.h, separate from libeio, and tries to test the actual perl
52 environment, not the standard system environment.
53 - provide nanosecond-accracy stat time accessors for both perl and IO::AIO
54 stat functions.
55 - removed non-portable C++ syntax from eio.c.
56 - try to fix readdir tests on cygwin spuriously failing.
57
584.5 Wed Aug 1 00:23:55 CEST 2018
59 - aio_mtouch touch all pages as requested, not just the first page in most cases.
60 - new function: IO::AIO::mremap, linux-specific mremap, with constants MREMAP_MAYMOVE
61 and MREMAP_FIXED.
62 - add O_ACCMODE.
63 - add (undocumented) MSG_CMSG_CLOEXEC and SOCK_CLOEXEC constants.
64
654.4 Tue Feb 20 07:54:12 CET 2018
66 - new aio_slurp request.
67 - add (experimental) IO::AIO::eventfd and timerfd* function.
68 - add (experimental) IO::AIO::get_fdlimit and IO::AIO::min_fdlimit.
69 - point out that aio_copy overwrites existing files.
70 - removed filesystem magic number table from aio_statvfs docs as
71 statvfs doesn't actually return this info at all (statfs does).
72 - add a bunch of (mostly linux-specific) constants for use in ioctls
73 (see aio_ioctl docs).
74 - treescan now has a proper manpage and useful --help output.
75 - new option --sync in treescan, to sync everything in a subtree.
76 - changed default for aio_msync flags to MSYNC_SYNC.
77 - document offset/length behaviour of mprotect/madvise.
78 - support linux's renameat2 (via aio_rename2).
79 - add aio_rename2, an aio_rename with flags.
80 - add F_DUPPFD_CLOEXEC, F_OFD_[SG]ETLKW? constants.
81 - add FALLOC_FL_INSERT_RANGE, FALLOC_FL_UNSHARE_RANGE.
82 - (libeio) use posix_close if available.
83 - (libeio) internal close() calls no longer disturb errno.
84 - add IO:AIO::FALLOC_FL_UNSHARE.
85 - update schmorp.h for removal of USE_SOCKETS_AS_HANDLES
86 and better eventfd detection.
87
884.34 Sun May 1 19:18:24 CEST 2016
89 - def0.h was not properly generated during previous release, causing
90 compile errors on various platforms.
91 - major/minor were accidentally switched (reported by Alexander Lishenyuk).
92 - removed duplicate definition of MAP_HUGETLB, that was found due to
93 a bug in Perl::Tidy (testcase by alaska332@gmail.com).
94 - added (untested!) aio_fcntl, aio_ioctl requests.
95 - (libeio) names set via prctl are truncated to 15 chars + nul, not 16,
96 as manpages-dev originally claimed.
97
984.33 Mon Jan 18 12:50:10 CET 2016
99 - add IO::AIO::pipe2 function.
100 - added support for FALLOC_FL_COLLAPSE_RANGE and FALLOC_FL_ZERO_RANGE
101 constants.
102 - added support for O_TMPFILE and O_PATH constants.
103 - added support for MAP_FIXED, MAP_GROWSDOWN,MAP_32BIT, MAP_HUGETLB, MAP_STACK
104 consdtants, whether they can be sensibly used or not.
105 - use NO_INIT where applicable.
106 - update libecb.
107 - added stability canary support.
108 - updated linux super magic table to 4.3.3.
109
1104.32 Wed Feb 11 20:32:11 CET 2015
111 - replace off_t by STRLEN where appropriate, should not result in
112 user-visible changes.
113 - update ecb.h for C11 compatibility.
114
1154.31 Tue Jun 3 03:29:27 CEST 2014
116 - work around more 5.20 bugs. backwards compatibility my ass.
117
1184.3 Fri Apr 11 06:22:38 CEST 2014
119 - perl5porters broke Async::Interrupt, BDB, EV, IO::AIO, OpenCL
120 without warning by switching the meaning of USE_SOCKETS_AS_HANDLES
121 in 5.18. What's so attractive about giving a shit about backwards
122 compatibility - I will never understand.
123
1244.2 Sat Jan 25 01:13:14 CET 2014
125 - aio_group could corrupt memory because it didn't restore
126 the stack after req_submit.
127 - be more careful on (e.g. permission) errors in bin/treescan.
128 - work around changes in ExtUtils::MakeMaker.
129 - (libeio) implement aio_realpath for win32.
130 - (xthread) work around compile time bugs in ptw32.
131 - added IO::AIO::pipesize.
132 - (libecb) insignificant update.
133
1344.19 Sun Jan 6 12:47:26 CET 2013
135 - avoid endless loop in fiemap with some XFS files.
136 - in aio_rename and aio_rmdir, specialcase the case of [$wd, "."]
137 and call rename/rmdir instead of renameat/unlinkat.
138
1394.18 Thu Oct 11 07:01:26 CEST 2012
140 - fix unintended xthread_create by intentionalising it :)
141
1424.17 Thu Oct 11 05:19:47 CEST 2012
143 - rename aio_fallocate to aio_allocate, to match documentation.
144 - add list of linux fsid values to aio_statvfs docs.
145 - work around a bug in btrfs' FIEMAP ioctl implementation.
146 - work around AIX bug: statvfs.f_fsid is a struct, not unsigned long
147 as per unix spec.
148
1494.16 Tue Aug 14 05:39:03 CEST 2012
150 - aio_statvfs was wromgly marked for wd emulation, causing
151 it to malfunction for paths.
152 - fix a crash in aio_fiemap, when used on ranges without any
153 extents.
154 - work around linux kernel bug (at least in 3.2): kernel might
155 trash fiemap input arguments.
156 - work around linux kernel bug (at least in 3.2): kernel does not
157 set FIEMAP_EXTENT_LAST on last segment.
158 - work around linux kernel bug (at least in 3.2): kernel silently
159 truncates segment count if a file.
160 - make fh argument of IO::AIO::mmap optional, also add mmap/munmap
161 to quick overview.
162 - splice can corrupt data.
163 - (libeio) remove pread/pwrite emulation.
164 - do not grow mmaped scalars in aio_read.
165 - add FALLOC_FL_PUNCH_HOLE and document fallocate.
166 - provide pread/pwrite for win32, making it link again on native win32.
167
1684.15 Tue Apr 10 06:59:00 CEST 2012
169 - always include linux/types.h for fiemap, for compatibility to
170 ancient systems (Paul Howarth).
171 - experimental support for IO::AIO::splice and ::tee (no aio_...).
172 - provide SEEK_HOLE and SEEK_DATA, if available.
173 - work around (again!) an immensely stupid bug in RHEL, defining
174 autoconf macros in linux system headers (analysed by Paul Howarth).
175
1764.14 Sat Apr 7 02:45:18 CEST 2012
177 - fix stat structure usage on windows, which caused bogus stat results.
178 - (libeio) make readahead emulation behave more like actual readahead by never failing.
179 - new request aio_seek.
180 - new request aio_fiemap.
181 - autogenerate the #ifdef/#define 0 blocks for symbols we export.
182
1834.12 Fri Dec 30 08:51:25 CET 2011
184 - realpath would return a random value if the name was too long,
185 instead of -1.
186 - port to c89.
187
1884.11 Mon Oct 10 00:24:11 CEST 2011
189 - libeio didn't compile on !linux (Paul Howarth).
190
1914.1 Sun Oct 9 10:24:11 CEST 2011
192 - IO::AIO did access uninitialised memory on unsuccessful stats.
193 - (libeio) added syncfs syscall wrapper.
194 - (libeio) set thread name on linux (ps -L/Hcx, top, gdb).
195 - (libeio) support multiple indepenent working directories.
196 - applied speling corrections by Nicholas Bamber.
197 - tune treescan #threads and #outstanding requests a bit.
198 - reduce the number of file descriptors in use at any one time
199 in treescan, to avoid running out of them (and using too much ram).
200 - take advantage of working directoriy abstractions
201 in aio_scandir and treescan.
202 - reduce compiled size by ~10% by not inlining some key functionality.
203 - added --progress switch to treescan.
204
2054.0 Mon Jul 18 05:01:10 CEST 2011
206 - INCOMPATIBLE CHANGE: fork is no longer supported (indeed, it never was),
207 see FORK BEHAVIOUR in manpage for details.
208 - passes testsuite on win32 now and may actually work
209 (activestate 5.10.1 / MSVC6, YMMV).
210 - (libeio) fix a deadlock where a wakeup signal could be missed when
211 a timeout occured at the same time.
212 - (libeio) added realpath.
213 - (libeio) added fallocate.
214 - (libeio) disabling sendfile on darwin unfortunately broke the emulation.
215 - (libeio) do not acquire any locks when forking.
216 - (libeio) use fewer time() syscalls when waiting for new requests.
217
2183.93 Wed Jun 29 23:44:18 CEST 2011
219 - ECB.H WAS MISSING.
220
2213.92 Wed Jun 29 14:45:41 CEST 2011
222 - ecb.h was missing.
223
2243.91 Wed Jun 29 13:24:42 CEST 2011
225 - (libeio) work around a Linux (and likely FreeBSD and other
226 kernels) bug where sendfile would not transfer all the requested
227 bytes on large transfers, using a heuristic.
228 - buggy sendfile caused aio_move/copy to sometimes fail for big
229 files (fortunately it checks that the whole file has been
230 transferred...)
231 - use libecb for higher performance and higher portability.
232 - (libeio) disable sendfile on darwin, it's too broken.
233 - disable fork tests on !linux, as only linux supports mixing
234 pthread and fork in perl.
235 - document the fact that fork doesn't work anymore when using
236 this module, on anything !GNU/Linux.
237 - increase timeout in t/04_fork.t, as too many CPAN-tester setups
238 run on a 0.1MHz cpu. Or so.
239
2403.9 Fri May 27 02:43:47 CEST 2011
241 - (libeio) fix memory corruption in aio_readdirx for the flags
242 combination READDIR_STAT_ORDER | READDIR_DIRS_FIRST.
243 - add lots of newer POSIX and GNU/Linux-specific open
244 flags.
245
2463.8 Sun Mar 27 12:25:33 CEST 2011
247 - use nonstandard but maybe-working-on-bsd fork technique.
248 - support a max_idle value of 0.
249 - support setting of idle timeout value (IO::AIO::idle_timeout).
250
2513.72 Fri Feb 11 04:25:38 CET 2011
252 - use _POSIX_MEMLOCK_RANGE to detect mlock/munlock.
253 - aio_mknod always used a dev_t value of 0.
254 - new treescan option: --grep.
255 - add more S_IF macros, and major/minor/makedev "macros".
256
2573.71 Thu Dec 30 08:18:46 CET 2010
258 - the numerical result value passed to callbacks did not stringify
259 correctly, due to internal reuse and failure to reset the sv flags.
260 - actually test for posix_[mf]advise, as at least uClibc defines
261 _POSIX_ADVISORY_INFO without actually having any of the required
262 funcitonality. ugh.
263
2643.7 Mon Nov 1 23:00:34 CET 2010
265 - implement/add madvise, mmap, munmap, aio_mlockall, munlockall,
266 aio_mlock, munlock, msync and mtouch to @EXPORT_OK.
267 - document the sad state of affairs w.r.t. pthread on many bsds.
268 - do not enable mmap on systems without _POSIX_MAPPED_FILES
269 (openbsd 4.8).
270 - do not leak memory in IO::AIO::mmap when the scalar already
271 had string-data.
272 - add O_RDWR, O_APPEND and O_EXCL symbols and semi-document
273 them.
274 - cache the result IV, for a minor speedup in the common case.
275 - croak when an mmapped-scalar changes location, to detect
276 user-errors better.
277 - fix aio_readlink prototype.
278
2793.65 Wed Mar 31 02:45:05 CEST 2010
280 - actually use PATH_MAX instead of NAME_MAX for readlink, as to not
281 cut off long pathnames in aio_readlink (based on patch by
282 Rasmus Andersson).
283 - a double fork partially killed the event pipe (great testcase
284 by dormando). affects IO::AIO, BDB and Async::Interrupt.
285 - suck steve's dick and rename our symbols to avoid colliding
286 with nonstandard identifier spam on the broken os x pseudo-os.
287 affects IO::AIO and BDB.
288
2893.6 Mon Jan 11 00:43:39 CET 2010
290 - (libeio) more fixes for the freebsd/apple sendfile - broken by
291 manpage standards, but apparently correct accoridng to actual
292 kernel sources.
293 - add IO::AIO::mmap/munmap support.
294 - add IO::AIO::m(un)lockall support.
295 - clean up manpage.
296
2973.5 Thu Jan 7 21:25:04 CET 2010
298 - (liebio) fix freebsd sendfile (Vanilla Hsu).
299 - (libeio) also fix darwin sendfile that suffered from a similar bug.
300 - add aio_statvfs as interface to statvfs/fstatvfs.
301 - work around buggy symlink() on cygwin in the testsuite.
302 - wtf. freebsd-8.0 actually passes the testsuite! I knew
303 they could implement fork and semaphores one day! cheers!
304
3053.4 Sat Jan 2 15:13:04 CET 2010
306 - (libeio) max_poll_time was not properly converted to ticks.
307 - clarify cancel_subs description.
308 - IO::AIO::sendfile did not actually return the return value
309 from the sendfile call.
310 - implement aio_msync, aio_mtouch.
311 - (libeio) tentatively support darwin in sendfile.
312
3133.31 Thu Nov 12 02:14:29 CET 2009
314 - fix result status documentation of aio_copy, aio_move.
315 - speed up object creation considerably by avoiding
316 hash lookups.
317
3183.3 Wed Aug 5 13:52:58 CEST 2009
319 - use common::sense.
320 - use common schmorp.h header.
321 - allow integers (file descriptors) in addition to file handles.
322 - take advantage of linux' eventfd (but it seems slower on smp?).
323 - use poll not select on posix platforms.
324
3253.261 Wed Jul 1 10:11:51 CEST 2009
326 - more 0S X workarounds (patch by Tokuhiro Matsuno).
327
3283.26 Tue Jun 30 09:33:26 CEST 2009
329 - 0S X of course claims to be posix 2008 but lacks posix_fadvise.
330 try to work around this horribly broken OS in a somewhat hackish
331 way. might help other os's too.
332
3333.25 Sat Jun 27 05:18:26 CEST 2009
334 - added IO::AIO::fadvise and IO::AIO::sendfile.
335 - (libeio) replaced quicksort+insertion sort by a tuned radix
336 sort + insertion sort, resulting in comparable runtime (usually
337 faster) to the old version, but without any ill side effects on
338 degenerated (for quicksort) data.
339 - (libeio) correctly sort dirs by inodes if we have perfect type
340 knowledge and DIRS_FIRST is used.
341 - (libeio) internally the wrong DT_* constants were used, but no
342 known system has differing EIO_DT_*/DT_* values, so not an issue.
343 - removed a (harmless) assert that was left over on the code
344 but should not have been.
345 - use more correct types (change IO length from IV to VAL64,
346 which makes a difference on systems without 64 bit perls).
347
3483.23 Sat Jun 13 16:57:58 CEST 2009
349 - fix off-by-one bug in aio_readdir that was introduced in the
350 rushed 3.22 release.
351
3523.22 Sat Jun 13 15:32:40 CEST 2009
353 - speed up readdirx sort algorithm slightly.
354 - bin/treescan was missing from distro tarball.
355
3563.21 Fri Jun 12 18:45:53 CEST 2009
357 - new options --dirs and --files for treescan.
358 - install bin/treescan by default.
359 - (libeio) aio_readdir can now be cancelled while executing.
360 - fix a printf format string for 64 bit systems (could lead
361 to problems on big endian 64 bit systems).
362 - do not use qsort() but our own algorithm: glibc initialises
363 the whole locale and I/O subsystem inside qsort, causing
364 a stack overflow on 32 bit machines. The new sort uses much less
365 stack and is more than twice as fast in typical situations.
366
3673.2 Sun Jun 7 20:30:05 CEST 2009
368 - (libeio) pwrite emulation was even more flawed than intended and did
369 not restore the file offset.
370 - add aio_readdirx, which can return inode and filetype and sort
371 the names in various ways.
372 - unfortunately, utime, chmod, chown on an open file that has just
373 been written can easily block, which caused aio_copy to block the
374 process. no more!
375 - no longer rely on dst path in aio_copy when futime is available.
376
3773.19 Tue Apr 21 22:05:21 CEST 2009
378 - more perl 5.10 workarounds for aio_read and write.
379 - aio_write no longer modifies the sv (if possible).
380 - aio_read now works correctly with magic values.
381
3823.18 Sun Apr 19 21:17:32 CEST 2009
383 - better diagnostics when some aio_* functions get passed an illegal fh.
384 - try to avoid crashes due to incompatible 5.10 API changes. grmbl.
385
3863.17 Thu Nov 20 08:45:36 CET 2008
387 - (libeio) added aio_sync_file_range (untested).
388 - add aio_busy to @IO::AIO::AIO_REQ.
389
3903.16 Wed Oct 22 18:28:01 CEST 2008
391 - use SvREFCNT_inc instead of SvREFCNT_inc_NN in a non-speed critical
392 part to improve portability to perl 5.8 (reported by szymon).
393
3943.15 Mon Oct 13 00:39:55 CEST 2008
395 - automatic removal of feeders was broken.
396 - (libeio) use a more robust method to detect whether a feeder
397 has added something to the group or not.
398
3993.1 Thu Oct 2 13:34:40 CEST 2008
400 - pre-deref the passed callback object, for increased speed
401 and decreased memory usage.
402 - call on_next_submit callback even for aio_group - impact unknown,
403 but seems more correct.
404 - $req->cb now returns the original callback.
405 - (libeio) pass EIO_GROUP/aio_group requests through the queue without
406 requiring a thread switch.
407 - (libeio) status code of aio_futime and aio_utime was always passed 0.
408 - do some other ยต-optimisations.
409
4103.07 Sat Aug 2 16:06:13 CEST 2008
411 - do not include LIBS in autoconf tests.
412
4133.06 Tue Jul 15 12:41:32 CEST 2008
414 - move preadwritelock definition before it's first reference,
415 to make it compile again on broken platforms (they still exist)
416 or badly cofngiured perls (redhat...), reported by Rob Bloodgood.
417
4183.05 Thu Jun 19 23:23:52 CEST 2008
419 - work around perl overriding readdir etc. with thread-unsafe
420 (sic!) versions.
421
4223.04 Wed Jun 18 01:35:38 CEST 2008
423 - (libeio) fix eio_mknod, which confused it's arguments.
424 - (libeio) do not use readdir_r, as Ulrich Drepper pointed out that this
425 is stupid.
426 - (libeio) fix eio__readahead prototype, patch by Jost Krieger.
427 - (libeio) fix a bug that could potentially cause IO::AIO
428 not to get initialised properly.
429
4303.03 Thu May 29 05:33:30 CEST 2008
431 - (libeio) correctly call pthread_attr_destroy ().
432 - (libeio) work around broken bsd headers once more.
433 - reduce shared library size again by not including wrappers.
434 - max_outstanding could cause poll to enter a busy-waiting loop.
435 - document the new IO::AIO::poll_cb result value.
436
4373.02 Mon May 12 02:32:02 CEST 2008
438 - fix a memory leak on aio_readlink.
439 - bring back working fchmod.
440 - nop and busy now set result to 0.
441 - set errno to ENOMEM when allocation fails.
442
4433.01 Sun May 11 03:07:03 CEST 2008
444 - (libeio) make it compile on systems without readahead or readdir_r.
445 - (libeio) improve configure check for readahead availability.
446 - do not try to link against -lrt.
447 - use a separate configure script for IO::AIO (not the libeio one).
448
4493.0 Sun May 11 00:57:14 CEST 2008
450 - added bin/treescan to the distribution.
451 - switched to using libeio.
452 - LOTS OF INCOMPATIBLE CHANGES:
11 - remove signal functionality, it is not worth the effort. 453 - remove signal functionality, it is not worth the effort.
12 - max_outstanding no longer returns the previous number of requests. 454 - max_outstanding no longer returns the previous number of requests.
13 - poll_cb no longer returns number of requests. 455 - poll_cb no longer returns number of requests.
14 456
152.62 Sat Apr 26 13:59:33 CEST 2008 4572.62 Sat Apr 26 13:59:33 CEST 2008
16 - port to solaris perls configured for old posix 458 - port to solaris perls configured for old posix
17 (analysed by Jost Krieger). 459 (analysed by Jost Krieger).
18 - keep a reference to the perl filehandle object in aio_close, 460 - keep a reference to the perl filehandle object in aio_close,

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