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Comparing IO-AIO/Changes (file contents):
Revision 1.134 by root, Sun Dec 2 20:54:33 2007 UTC vs.
Revision 1.350 by root, Mon Feb 19 13:37:13 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: fix setsig
7TODO: 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/)
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
92.6 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 flags
33TODO: https://kernelnewbies.org/Linux_4.11
34TODO: define useful rules for [[$wd, $path], $path] &c and implement them
35
36TODO: https://github.com/coreutils/coreutils/blob/master/src/stat.c maybe IO::AIO::FSID
37TODO: mmap on $hash->{key} keeps PVLV
38 - new aio_slurp request.
39 - removed filesystem magic number table from aio_statvfs docs as
40 statvfs doesn't actually return this info at all (statfs does).
41 - add a bunch of (mostly linux-specific) constants for use in ioctls
42 (see aio_ioctl docs).
43 - treescan now has a proper manpage and useful --help output.
44 - new option --sync in treescan, to sync everything in a subtree.
45 - changed default for aio_msync flags to MSYNC_SYNC.
46 - document offset/length behaviour of mprotect/madvise.
47 - support linux's renameat2 (via aio_rename2).
48 - add aio_rename2, an aio_rename with flags.
49 - add F_DUPPFD_CLOEXEC, F_OFD_[SG]ETLKW? constants.
50 - add FALLOC_FL_INSERT_RANGE, FALLOC_FL_UNSHARE_RANGE.
51 - add (experimental) IO::AIO::get_fdlimit and IO::AIO::min_fdlimit.
52 - point out that aio_copy overwrites existing files.
53 - (libeio) use posix_close if available.
54 - (libeio) internal close() calls no longer disturb errno.
55 - add IO:AIO::FALLOC_FL_UNSHARE.
56 - update schmorp.h for removal of USE_SOCKETS_AS_HANDLES.
57
584.34 Sun May 1 19:18:24 CEST 2016
59 - def0.h was not properly generated during previous release, causing
60 compile errors on various platforms.
61 - major/minor were accidentally switched (reported by Alexander Lishenyuk).
62 - removed duplicate definition of MAP_HUGETLB, that was found due to
63 a bug in Perl::Tidy (testcase by alaska332@gmail.com).
64 - added (untested!) aio_fcntl, aio_ioctl requests.
65 - (libeio) names set via prctl are truncated to 15 chars + nul, not 16,
66 as manpages-dev originally claimed.
67
684.33 Mon Jan 18 12:50:10 CET 2016
69 - add IO::AIO::pipe2 function.
70 - added support for FALLOC_FL_COLLAPSE_RANGE and FALLOC_FL_ZERO_RANGE
71 constants.
72 - added support for O_TMPFILE and O_PATH constants.
73 - added support for MAP_FIXED, MAP_GROWSDOWN,MAP_32BIT, MAP_HUGETLB, MAP_STACK
74 consdtants, whether they can be sensibly used or not.
75 - use NO_INIT where applicable.
76 - update libecb.
77 - added stability canary support.
78 - updated linux super magic table to 4.3.3.
79
804.32 Wed Feb 11 20:32:11 CET 2015
81 - replace off_t by STRLEN where appropriate, should not result in
82 user-visible changes.
83 - update ecb.h for C11 compatibility.
84
854.31 Tue Jun 3 03:29:27 CEST 2014
86 - work around more 5.20 bugs. backwards compatibility my ass.
87
884.3 Fri Apr 11 06:22:38 CEST 2014
89 - perl5porters broke Async::Interrupt, BDB, EV, IO::AIO, OpenCL
90 without warning by switching the meaning of USE_SOCKETS_AS_HANDLES
91 in 5.18. What's so attractive about giving a shit about backwards
92 compatibility - I will never understand.
93
944.2 Sat Jan 25 01:13:14 CET 2014
95 - aio_group could corrupt memory because it didn't restore
96 the stack after req_submit.
97 - be more careful on (e.g. permission) errors in bin/treescan.
98 - work around changes in ExtUtils::MakeMaker.
99 - (libeio) implement aio_realpath for win32.
100 - (xthread) work around compile time bugs in ptw32.
101 - added IO::AIO::pipesize.
102 - (libecb) insignificant update.
103
1044.19 Sun Jan 6 12:47:26 CET 2013
105 - avoid endless loop in fiemap with some XFS files.
106 - in aio_rename and aio_rmdir, specialcase the case of [$wd, "."]
107 and call rename/rmdir instead of renameat/unlinkat.
108
1094.18 Thu Oct 11 07:01:26 CEST 2012
110 - fix unintended xthread_create by intentionalising it :)
111
1124.17 Thu Oct 11 05:19:47 CEST 2012
113 - rename aio_fallocate to aio_allocate, to match documentation.
114 - add list of linux fsid values to aio_statvfs docs.
115 - work around a bug in btrfs' FIEMAP ioctl implementation.
116 - work around AIX bug: statvfs.f_fsid is a struct, not unsigned long
117 as per unix spec.
118
1194.16 Tue Aug 14 05:39:03 CEST 2012
120 - aio_statvfs was wromgly marked for wd emulation, causing
121 it to malfunction for paths.
122 - fix a crash in aio_fiemap, when used on ranges without any
123 extents.
124 - work around linux kernel bug (at least in 3.2): kernel might
125 trash fiemap input arguments.
126 - work around linux kernel bug (at least in 3.2): kernel does not
127 set FIEMAP_EXTENT_LAST on last segment.
128 - work around linux kernel bug (at least in 3.2): kernel silently
129 truncates segment count if a file.
130 - make fh argument of IO::AIO::mmap optional, also add mmap/munmap
131 to quick overview.
132 - splice can corrupt data.
133 - (libeio) remove pread/pwrite emulation.
134 - do not grow mmaped scalars in aio_read.
135 - add FALLOC_FL_PUNCH_HOLE and document fallocate.
136 - provide pread/pwrite for win32, making it link again on native win32.
137
1384.15 Tue Apr 10 06:59:00 CEST 2012
139 - always include linux/types.h for fiemap, for compatibility to
140 ancient systems (Paul Howarth).
141 - experimental support for IO::AIO::splice and ::tee (no aio_...).
142 - provide SEEK_HOLE and SEEK_DATA, if available.
143 - work around (again!) an immensely stupid bug in RHEL, defining
144 autoconf macros in linux system headers (analysed by Paul Howarth).
145
1464.14 Sat Apr 7 02:45:18 CEST 2012
147 - fix stat structure usage on windows, which caused bogus stat results.
148 - (libeio) make readahead emulation behave more like actual readahead by never failing.
149 - new request aio_seek.
150 - new request aio_fiemap.
151 - autogenerate the #ifdef/#define 0 blocks for symbols we export.
152
1534.12 Fri Dec 30 08:51:25 CET 2011
154 - realpath would return a random value if the name was too long,
155 instead of -1.
156 - port to c89.
157
1584.11 Mon Oct 10 00:24:11 CEST 2011
159 - libeio didn't compile on !linux (Paul Howarth).
160
1614.1 Sun Oct 9 10:24:11 CEST 2011
162 - IO::AIO did access uninitialised memory on unsuccessful stats.
163 - (libeio) added syncfs syscall wrapper.
164 - (libeio) set thread name on linux (ps -L/Hcx, top, gdb).
165 - (libeio) support multiple indepenent working directories.
166 - applied speling corrections by Nicholas Bamber.
167 - tune treescan #threads and #outstanding requests a bit.
168 - reduce the number of file descriptors in use at any one time
169 in treescan, to avoid running out of them (and using too much ram).
170 - take advantage of working directoriy abstractions
171 in aio_scandir and treescan.
172 - reduce compiled size by ~10% by not inlining some key functionality.
173 - added --progress switch to treescan.
174
1754.0 Mon Jul 18 05:01:10 CEST 2011
176 - INCOMPATIBLE CHANGE: fork is no longer supported (indeed, it never was),
177 see FORK BEHAVIOUR in manpage for details.
178 - passes testsuite on win32 now and may actually work
179 (activestate 5.10.1 / MSVC6, YMMV).
180 - (libeio) fix a deadlock where a wakeup signal could be missed when
181 a timeout occured at the same time.
182 - (libeio) added realpath.
183 - (libeio) added fallocate.
184 - (libeio) disabling sendfile on darwin unfortunately broke the emulation.
185 - (libeio) do not acquire any locks when forking.
186 - (libeio) use fewer time() syscalls when waiting for new requests.
187
1883.93 Wed Jun 29 23:44:18 CEST 2011
189 - ECB.H WAS MISSING.
190
1913.92 Wed Jun 29 14:45:41 CEST 2011
192 - ecb.h was missing.
193
1943.91 Wed Jun 29 13:24:42 CEST 2011
195 - (libeio) work around a Linux (and likely FreeBSD and other
196 kernels) bug where sendfile would not transfer all the requested
197 bytes on large transfers, using a heuristic.
198 - buggy sendfile caused aio_move/copy to sometimes fail for big
199 files (fortunately it checks that the whole file has been
200 transferred...)
201 - use libecb for higher performance and higher portability.
202 - (libeio) disable sendfile on darwin, it's too broken.
203 - disable fork tests on !linux, as only linux supports mixing
204 pthread and fork in perl.
205 - document the fact that fork doesn't work anymore when using
206 this module, on anything !GNU/Linux.
207 - increase timeout in t/04_fork.t, as too many CPAN-tester setups
208 run on a 0.1MHz cpu. Or so.
209
2103.9 Fri May 27 02:43:47 CEST 2011
211 - (libeio) fix memory corruption in aio_readdirx for the flags
212 combination READDIR_STAT_ORDER | READDIR_DIRS_FIRST.
213 - add lots of newer POSIX and GNU/Linux-specific open
214 flags.
215
2163.8 Sun Mar 27 12:25:33 CEST 2011
217 - use nonstandard but maybe-working-on-bsd fork technique.
218 - support a max_idle value of 0.
219 - support setting of idle timeout value (IO::AIO::idle_timeout).
220
2213.72 Fri Feb 11 04:25:38 CET 2011
222 - use _POSIX_MEMLOCK_RANGE to detect mlock/munlock.
223 - aio_mknod always used a dev_t value of 0.
224 - new treescan option: --grep.
225 - add more S_IF macros, and major/minor/makedev "macros".
226
2273.71 Thu Dec 30 08:18:46 CET 2010
228 - the numerical result value passed to callbacks did not stringify
229 correctly, due to internal reuse and failure to reset the sv flags.
230 - actually test for posix_[mf]advise, as at least uClibc defines
231 _POSIX_ADVISORY_INFO without actually having any of the required
232 funcitonality. ugh.
233
2343.7 Mon Nov 1 23:00:34 CET 2010
235 - implement/add madvise, mmap, munmap, aio_mlockall, munlockall,
236 aio_mlock, munlock, msync and mtouch to @EXPORT_OK.
237 - document the sad state of affairs w.r.t. pthread on many bsds.
238 - do not enable mmap on systems without _POSIX_MAPPED_FILES
239 (openbsd 4.8).
240 - do not leak memory in IO::AIO::mmap when the scalar already
241 had string-data.
242 - add O_RDWR, O_APPEND and O_EXCL symbols and semi-document
243 them.
244 - cache the result IV, for a minor speedup in the common case.
245 - croak when an mmapped-scalar changes location, to detect
246 user-errors better.
247 - fix aio_readlink prototype.
248
2493.65 Wed Mar 31 02:45:05 CEST 2010
250 - actually use PATH_MAX instead of NAME_MAX for readlink, as to not
251 cut off long pathnames in aio_readlink (based on patch by
252 Rasmus Andersson).
253 - a double fork partially killed the event pipe (great testcase
254 by dormando). affects IO::AIO, BDB and Async::Interrupt.
255 - suck steve's dick and rename our symbols to avoid colliding
256 with nonstandard identifier spam on the broken os x pseudo-os.
257 affects IO::AIO and BDB.
258
2593.6 Mon Jan 11 00:43:39 CET 2010
260 - (libeio) more fixes for the freebsd/apple sendfile - broken by
261 manpage standards, but apparently correct accoridng to actual
262 kernel sources.
263 - add IO::AIO::mmap/munmap support.
264 - add IO::AIO::m(un)lockall support.
265 - clean up manpage.
266
2673.5 Thu Jan 7 21:25:04 CET 2010
268 - (liebio) fix freebsd sendfile (Vanilla Hsu).
269 - (libeio) also fix darwin sendfile that suffered from a similar bug.
270 - add aio_statvfs as interface to statvfs/fstatvfs.
271 - work around buggy symlink() on cygwin in the testsuite.
272 - wtf. freebsd-8.0 actually passes the testsuite! I knew
273 they could implement fork and semaphores one day! cheers!
274
2753.4 Sat Jan 2 15:13:04 CET 2010
276 - (libeio) max_poll_time was not properly converted to ticks.
277 - clarify cancel_subs description.
278 - IO::AIO::sendfile did not actually return the return value
279 from the sendfile call.
280 - implement aio_msync, aio_mtouch.
281 - (libeio) tentatively support darwin in sendfile.
282
2833.31 Thu Nov 12 02:14:29 CET 2009
284 - fix result status documentation of aio_copy, aio_move.
285 - speed up object creation considerably by avoiding
286 hash lookups.
287
2883.3 Wed Aug 5 13:52:58 CEST 2009
289 - use common::sense.
290 - use common schmorp.h header.
291 - allow integers (file descriptors) in addition to file handles.
292 - take advantage of linux' eventfd (but it seems slower on smp?).
293 - use poll not select on posix platforms.
294
2953.261 Wed Jul 1 10:11:51 CEST 2009
296 - more 0S X workarounds (patch by Tokuhiro Matsuno).
297
2983.26 Tue Jun 30 09:33:26 CEST 2009
299 - 0S X of course claims to be posix 2008 but lacks posix_fadvise.
300 try to work around this horribly broken OS in a somewhat hackish
301 way. might help other os's too.
302
3033.25 Sat Jun 27 05:18:26 CEST 2009
304 - added IO::AIO::fadvise and IO::AIO::sendfile.
305 - (libeio) replaced quicksort+insertion sort by a tuned radix
306 sort + insertion sort, resulting in comparable runtime (usually
307 faster) to the old version, but without any ill side effects on
308 degenerated (for quicksort) data.
309 - (libeio) correctly sort dirs by inodes if we have perfect type
310 knowledge and DIRS_FIRST is used.
311 - (libeio) internally the wrong DT_* constants were used, but no
312 known system has differing EIO_DT_*/DT_* values, so not an issue.
313 - removed a (harmless) assert that was left over on the code
314 but should not have been.
315 - use more correct types (change IO length from IV to VAL64,
316 which makes a difference on systems without 64 bit perls).
317
3183.23 Sat Jun 13 16:57:58 CEST 2009
319 - fix off-by-one bug in aio_readdir that was introduced in the
320 rushed 3.22 release.
321
3223.22 Sat Jun 13 15:32:40 CEST 2009
323 - speed up readdirx sort algorithm slightly.
324 - bin/treescan was missing from distro tarball.
325
3263.21 Fri Jun 12 18:45:53 CEST 2009
327 - new options --dirs and --files for treescan.
328 - install bin/treescan by default.
329 - (libeio) aio_readdir can now be cancelled while executing.
330 - fix a printf format string for 64 bit systems (could lead
331 to problems on big endian 64 bit systems).
332 - do not use qsort() but our own algorithm: glibc initialises
333 the whole locale and I/O subsystem inside qsort, causing
334 a stack overflow on 32 bit machines. The new sort uses much less
335 stack and is more than twice as fast in typical situations.
336
3373.2 Sun Jun 7 20:30:05 CEST 2009
338 - (libeio) pwrite emulation was even more flawed than intended and did
339 not restore the file offset.
340 - add aio_readdirx, which can return inode and filetype and sort
341 the names in various ways.
342 - unfortunately, utime, chmod, chown on an open file that has just
343 been written can easily block, which caused aio_copy to block the
344 process. no more!
345 - no longer rely on dst path in aio_copy when futime is available.
346
3473.19 Tue Apr 21 22:05:21 CEST 2009
348 - more perl 5.10 workarounds for aio_read and write.
349 - aio_write no longer modifies the sv (if possible).
350 - aio_read now works correctly with magic values.
351
3523.18 Sun Apr 19 21:17:32 CEST 2009
353 - better diagnostics when some aio_* functions get passed an illegal fh.
354 - try to avoid crashes due to incompatible 5.10 API changes. grmbl.
355
3563.17 Thu Nov 20 08:45:36 CET 2008
357 - (libeio) added aio_sync_file_range (untested).
358 - add aio_busy to @IO::AIO::AIO_REQ.
359
3603.16 Wed Oct 22 18:28:01 CEST 2008
361 - use SvREFCNT_inc instead of SvREFCNT_inc_NN in a non-speed critical
362 part to improve portability to perl 5.8 (reported by szymon).
363
3643.15 Mon Oct 13 00:39:55 CEST 2008
365 - automatic removal of feeders was broken.
366 - (libeio) use a more robust method to detect whether a feeder
367 has added something to the group or not.
368
3693.1 Thu Oct 2 13:34:40 CEST 2008
370 - pre-deref the passed callback object, for increased speed
371 and decreased memory usage.
372 - call on_next_submit callback even for aio_group - impact unknown,
373 but seems more correct.
374 - $req->cb now returns the original callback.
375 - (libeio) pass EIO_GROUP/aio_group requests through the queue without
376 requiring a thread switch.
377 - (libeio) status code of aio_futime and aio_utime was always passed 0.
378 - do some other ยต-optimisations.
379
3803.07 Sat Aug 2 16:06:13 CEST 2008
381 - do not include LIBS in autoconf tests.
382
3833.06 Tue Jul 15 12:41:32 CEST 2008
384 - move preadwritelock definition before it's first reference,
385 to make it compile again on broken platforms (they still exist)
386 or badly cofngiured perls (redhat...), reported by Rob Bloodgood.
387
3883.05 Thu Jun 19 23:23:52 CEST 2008
389 - work around perl overriding readdir etc. with thread-unsafe
390 (sic!) versions.
391
3923.04 Wed Jun 18 01:35:38 CEST 2008
393 - (libeio) fix eio_mknod, which confused it's arguments.
394 - (libeio) do not use readdir_r, as Ulrich Drepper pointed out that this
395 is stupid.
396 - (libeio) fix eio__readahead prototype, patch by Jost Krieger.
397 - (libeio) fix a bug that could potentially cause IO::AIO
398 not to get initialised properly.
399
4003.03 Thu May 29 05:33:30 CEST 2008
401 - (libeio) correctly call pthread_attr_destroy ().
402 - (libeio) work around broken bsd headers once more.
403 - reduce shared library size again by not including wrappers.
404 - max_outstanding could cause poll to enter a busy-waiting loop.
405 - document the new IO::AIO::poll_cb result value.
406
4073.02 Mon May 12 02:32:02 CEST 2008
408 - fix a memory leak on aio_readlink.
409 - bring back working fchmod.
410 - nop and busy now set result to 0.
411 - set errno to ENOMEM when allocation fails.
412
4133.01 Sun May 11 03:07:03 CEST 2008
414 - (libeio) make it compile on systems without readahead or readdir_r.
415 - (libeio) improve configure check for readahead availability.
416 - do not try to link against -lrt.
417 - use a separate configure script for IO::AIO (not the libeio one).
418
4193.0 Sun May 11 00:57:14 CEST 2008
420 - added bin/treescan to the distribution.
421 - switched to using libeio.
422 - LOTS OF INCOMPATIBLE CHANGES:
423 - remove signal functionality, it is not worth the effort.
424 - max_outstanding no longer returns the previous number of requests.
425 - poll_cb no longer returns number of requests.
426
4272.62 Sat Apr 26 13:59:33 CEST 2008
428 - port to solaris perls configured for old posix
429 (analysed by Jost Krieger).
430 - keep a reference to the perl filehandle object in aio_close,
431 so it doesn't get closed prematurely, leading to ugly races.
432
4332.61 Wed Apr 16 18:45:02 CEST 2008
434 - fix treescan output duplication and improve output ordering.
435 also display files given on the commandline.
436 - use a different algorithm for aio_close that is faster
437 and probably has even lower chances of blocking.
438 - do our own stack memory management for threads - linux
439 allocates outrageous amounts of VM (not so bad unless you
440 use mlockall...), which severely limits the number of threads
441 on 32-bit arches: stack size is the larger of PTHREAD_STACK_MIN
442 and 4096 * sizeof (long) (usually this is 16..64k).
443
4442.6 Sun Mar 30 08:28:11 CEST 2008
10 - added aio_sync. 445 - added aio_sync.
446 - added aio_pathsync.
447 - fix prototypes of (void) functions.
11 448
122.51 Sat Oct 6 16:04:54 CEST 2007 4492.51 Sat Oct 6 16:04:54 CEST 2007
13 - perlio isn't generally threadsafe, so aio_close could not work reliably. 450 - perlio isn't generally threadsafe, so aio_close could not work reliably.
14 aio_close now tries a safe hack that might not be that asynchronous 451 aio_close now tries a safe hack that might not be that asynchronous
15 (see the manpage for details). 452 (see the manpage for details).

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