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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 1.359 by root, Tue Jul 24 19:32:20 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
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: 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 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 - aio_mtouch touch all pages as requested, not just the first page in most cases.
41 - new function: IO::AIO::mremap, linux-specific mremap, with constants MREMAP_MAYMOVE
42 and MREMAP_FIXED.
43 - add O_ACCMODE.
44 - add (undocumented) MSG_CMSG_CLOEXEC and SOCK_CLOEXEC constants.
45
464.4 Tue Feb 20 07:54:12 CET 2018
47 - new aio_slurp request.
48 - add (experimental) IO::AIO::eventfd and timerfd* function.
49 - add (experimental) IO::AIO::get_fdlimit and IO::AIO::min_fdlimit.
50 - point out that aio_copy overwrites existing files.
51 - removed filesystem magic number table from aio_statvfs docs as
52 statvfs doesn't actually return this info at all (statfs does).
53 - add a bunch of (mostly linux-specific) constants for use in ioctls
54 (see aio_ioctl docs).
55 - treescan now has a proper manpage and useful --help output.
56 - new option --sync in treescan, to sync everything in a subtree.
57 - changed default for aio_msync flags to MSYNC_SYNC.
58 - document offset/length behaviour of mprotect/madvise.
59 - support linux's renameat2 (via aio_rename2).
60 - add aio_rename2, an aio_rename with flags.
61 - add F_DUPPFD_CLOEXEC, F_OFD_[SG]ETLKW? constants.
62 - add FALLOC_FL_INSERT_RANGE, FALLOC_FL_UNSHARE_RANGE.
63 - (libeio) use posix_close if available.
64 - (libeio) internal close() calls no longer disturb errno.
65 - add IO:AIO::FALLOC_FL_UNSHARE.
66 - update schmorp.h for removal of USE_SOCKETS_AS_HANDLES
67 and better eventfd detection.
68
694.34 Sun May 1 19:18:24 CEST 2016
70 - def0.h was not properly generated during previous release, causing
71 compile errors on various platforms.
72 - major/minor were accidentally switched (reported by Alexander Lishenyuk).
73 - removed duplicate definition of MAP_HUGETLB, that was found due to
74 a bug in Perl::Tidy (testcase by alaska332@gmail.com).
75 - added (untested!) aio_fcntl, aio_ioctl requests.
76 - (libeio) names set via prctl are truncated to 15 chars + nul, not 16,
77 as manpages-dev originally claimed.
78
794.33 Mon Jan 18 12:50:10 CET 2016
80 - add IO::AIO::pipe2 function.
81 - added support for FALLOC_FL_COLLAPSE_RANGE and FALLOC_FL_ZERO_RANGE
82 constants.
83 - added support for O_TMPFILE and O_PATH constants.
84 - added support for MAP_FIXED, MAP_GROWSDOWN,MAP_32BIT, MAP_HUGETLB, MAP_STACK
85 consdtants, whether they can be sensibly used or not.
86 - use NO_INIT where applicable.
87 - update libecb.
88 - added stability canary support.
89 - updated linux super magic table to 4.3.3.
90
914.32 Wed Feb 11 20:32:11 CET 2015
92 - replace off_t by STRLEN where appropriate, should not result in
93 user-visible changes.
94 - update ecb.h for C11 compatibility.
95
964.31 Tue Jun 3 03:29:27 CEST 2014
97 - work around more 5.20 bugs. backwards compatibility my ass.
98
994.3 Fri Apr 11 06:22:38 CEST 2014
100 - perl5porters broke Async::Interrupt, BDB, EV, IO::AIO, OpenCL
101 without warning by switching the meaning of USE_SOCKETS_AS_HANDLES
102 in 5.18. What's so attractive about giving a shit about backwards
103 compatibility - I will never understand.
104
1054.2 Sat Jan 25 01:13:14 CET 2014
106 - aio_group could corrupt memory because it didn't restore
107 the stack after req_submit.
108 - be more careful on (e.g. permission) errors in bin/treescan.
109 - work around changes in ExtUtils::MakeMaker.
110 - (libeio) implement aio_realpath for win32.
111 - (xthread) work around compile time bugs in ptw32.
112 - added IO::AIO::pipesize.
113 - (libecb) insignificant update.
114
1154.19 Sun Jan 6 12:47:26 CET 2013
116 - avoid endless loop in fiemap with some XFS files.
117 - in aio_rename and aio_rmdir, specialcase the case of [$wd, "."]
118 and call rename/rmdir instead of renameat/unlinkat.
119
1204.18 Thu Oct 11 07:01:26 CEST 2012
121 - fix unintended xthread_create by intentionalising it :)
122
1234.17 Thu Oct 11 05:19:47 CEST 2012
124 - rename aio_fallocate to aio_allocate, to match documentation.
125 - add list of linux fsid values to aio_statvfs docs.
126 - work around a bug in btrfs' FIEMAP ioctl implementation.
127 - work around AIX bug: statvfs.f_fsid is a struct, not unsigned long
128 as per unix spec.
129
1304.16 Tue Aug 14 05:39:03 CEST 2012
131 - aio_statvfs was wromgly marked for wd emulation, causing
132 it to malfunction for paths.
133 - fix a crash in aio_fiemap, when used on ranges without any
134 extents.
135 - work around linux kernel bug (at least in 3.2): kernel might
136 trash fiemap input arguments.
137 - work around linux kernel bug (at least in 3.2): kernel does not
138 set FIEMAP_EXTENT_LAST on last segment.
139 - work around linux kernel bug (at least in 3.2): kernel silently
140 truncates segment count if a file.
141 - make fh argument of IO::AIO::mmap optional, also add mmap/munmap
142 to quick overview.
143 - splice can corrupt data.
144 - (libeio) remove pread/pwrite emulation.
145 - do not grow mmaped scalars in aio_read.
146 - add FALLOC_FL_PUNCH_HOLE and document fallocate.
147 - provide pread/pwrite for win32, making it link again on native win32.
148
1494.15 Tue Apr 10 06:59:00 CEST 2012
150 - always include linux/types.h for fiemap, for compatibility to
151 ancient systems (Paul Howarth).
152 - experimental support for IO::AIO::splice and ::tee (no aio_...).
153 - provide SEEK_HOLE and SEEK_DATA, if available.
154 - work around (again!) an immensely stupid bug in RHEL, defining
155 autoconf macros in linux system headers (analysed by Paul Howarth).
156
1574.14 Sat Apr 7 02:45:18 CEST 2012
158 - fix stat structure usage on windows, which caused bogus stat results.
159 - (libeio) make readahead emulation behave more like actual readahead by never failing.
160 - new request aio_seek.
161 - new request aio_fiemap.
162 - autogenerate the #ifdef/#define 0 blocks for symbols we export.
163
1644.12 Fri Dec 30 08:51:25 CET 2011
165 - realpath would return a random value if the name was too long,
166 instead of -1.
167 - port to c89.
168
1694.11 Mon Oct 10 00:24:11 CEST 2011
170 - libeio didn't compile on !linux (Paul Howarth).
171
1724.1 Sun Oct 9 10:24:11 CEST 2011
173 - IO::AIO did access uninitialised memory on unsuccessful stats.
174 - (libeio) added syncfs syscall wrapper.
175 - (libeio) set thread name on linux (ps -L/Hcx, top, gdb).
176 - (libeio) support multiple indepenent working directories.
177 - applied speling corrections by Nicholas Bamber.
178 - tune treescan #threads and #outstanding requests a bit.
179 - reduce the number of file descriptors in use at any one time
180 in treescan, to avoid running out of them (and using too much ram).
181 - take advantage of working directoriy abstractions
182 in aio_scandir and treescan.
183 - reduce compiled size by ~10% by not inlining some key functionality.
184 - added --progress switch to treescan.
185
1864.0 Mon Jul 18 05:01:10 CEST 2011
187 - INCOMPATIBLE CHANGE: fork is no longer supported (indeed, it never was),
188 see FORK BEHAVIOUR in manpage for details.
189 - passes testsuite on win32 now and may actually work
190 (activestate 5.10.1 / MSVC6, YMMV).
191 - (libeio) fix a deadlock where a wakeup signal could be missed when
192 a timeout occured at the same time.
193 - (libeio) added realpath.
194 - (libeio) added fallocate.
195 - (libeio) disabling sendfile on darwin unfortunately broke the emulation.
196 - (libeio) do not acquire any locks when forking.
197 - (libeio) use fewer time() syscalls when waiting for new requests.
198
1993.93 Wed Jun 29 23:44:18 CEST 2011
200 - ECB.H WAS MISSING.
201
2023.92 Wed Jun 29 14:45:41 CEST 2011
203 - ecb.h was missing.
204
2053.91 Wed Jun 29 13:24:42 CEST 2011
206 - (libeio) work around a Linux (and likely FreeBSD and other
207 kernels) bug where sendfile would not transfer all the requested
208 bytes on large transfers, using a heuristic.
209 - buggy sendfile caused aio_move/copy to sometimes fail for big
210 files (fortunately it checks that the whole file has been
211 transferred...)
212 - use libecb for higher performance and higher portability.
213 - (libeio) disable sendfile on darwin, it's too broken.
214 - disable fork tests on !linux, as only linux supports mixing
215 pthread and fork in perl.
216 - document the fact that fork doesn't work anymore when using
217 this module, on anything !GNU/Linux.
218 - increase timeout in t/04_fork.t, as too many CPAN-tester setups
219 run on a 0.1MHz cpu. Or so.
220
2213.9 Fri May 27 02:43:47 CEST 2011
222 - (libeio) fix memory corruption in aio_readdirx for the flags
223 combination READDIR_STAT_ORDER | READDIR_DIRS_FIRST.
224 - add lots of newer POSIX and GNU/Linux-specific open
225 flags.
226
2273.8 Sun Mar 27 12:25:33 CEST 2011
228 - use nonstandard but maybe-working-on-bsd fork technique.
229 - support a max_idle value of 0.
230 - support setting of idle timeout value (IO::AIO::idle_timeout).
231
2323.72 Fri Feb 11 04:25:38 CET 2011
233 - use _POSIX_MEMLOCK_RANGE to detect mlock/munlock.
234 - aio_mknod always used a dev_t value of 0.
235 - new treescan option: --grep.
236 - add more S_IF macros, and major/minor/makedev "macros".
237
2383.71 Thu Dec 30 08:18:46 CET 2010
239 - the numerical result value passed to callbacks did not stringify
240 correctly, due to internal reuse and failure to reset the sv flags.
241 - actually test for posix_[mf]advise, as at least uClibc defines
242 _POSIX_ADVISORY_INFO without actually having any of the required
243 funcitonality. ugh.
244
2453.7 Mon Nov 1 23:00:34 CET 2010
246 - implement/add madvise, mmap, munmap, aio_mlockall, munlockall,
247 aio_mlock, munlock, msync and mtouch to @EXPORT_OK.
248 - document the sad state of affairs w.r.t. pthread on many bsds.
249 - do not enable mmap on systems without _POSIX_MAPPED_FILES
250 (openbsd 4.8).
251 - do not leak memory in IO::AIO::mmap when the scalar already
252 had string-data.
253 - add O_RDWR, O_APPEND and O_EXCL symbols and semi-document
254 them.
255 - cache the result IV, for a minor speedup in the common case.
256 - croak when an mmapped-scalar changes location, to detect
257 user-errors better.
258 - fix aio_readlink prototype.
259
2603.65 Wed Mar 31 02:45:05 CEST 2010
261 - actually use PATH_MAX instead of NAME_MAX for readlink, as to not
262 cut off long pathnames in aio_readlink (based on patch by
263 Rasmus Andersson).
264 - a double fork partially killed the event pipe (great testcase
265 by dormando). affects IO::AIO, BDB and Async::Interrupt.
266 - suck steve's dick and rename our symbols to avoid colliding
267 with nonstandard identifier spam on the broken os x pseudo-os.
268 affects IO::AIO and BDB.
269
2703.6 Mon Jan 11 00:43:39 CET 2010
271 - (libeio) more fixes for the freebsd/apple sendfile - broken by
272 manpage standards, but apparently correct accoridng to actual
273 kernel sources.
274 - add IO::AIO::mmap/munmap support.
275 - add IO::AIO::m(un)lockall support.
276 - clean up manpage.
277
2783.5 Thu Jan 7 21:25:04 CET 2010
279 - (liebio) fix freebsd sendfile (Vanilla Hsu).
280 - (libeio) also fix darwin sendfile that suffered from a similar bug.
281 - add aio_statvfs as interface to statvfs/fstatvfs.
282 - work around buggy symlink() on cygwin in the testsuite.
283 - wtf. freebsd-8.0 actually passes the testsuite! I knew
284 they could implement fork and semaphores one day! cheers!
285
2863.4 Sat Jan 2 15:13:04 CET 2010
287 - (libeio) max_poll_time was not properly converted to ticks.
288 - clarify cancel_subs description.
289 - IO::AIO::sendfile did not actually return the return value
290 from the sendfile call.
291 - implement aio_msync, aio_mtouch.
292 - (libeio) tentatively support darwin in sendfile.
293
2943.31 Thu Nov 12 02:14:29 CET 2009
295 - fix result status documentation of aio_copy, aio_move.
296 - speed up object creation considerably by avoiding
297 hash lookups.
298
2993.3 Wed Aug 5 13:52:58 CEST 2009
300 - use common::sense.
301 - use common schmorp.h header.
302 - allow integers (file descriptors) in addition to file handles.
303 - take advantage of linux' eventfd (but it seems slower on smp?).
304 - use poll not select on posix platforms.
305
3063.261 Wed Jul 1 10:11:51 CEST 2009
307 - more 0S X workarounds (patch by Tokuhiro Matsuno).
308
3093.26 Tue Jun 30 09:33:26 CEST 2009
310 - 0S X of course claims to be posix 2008 but lacks posix_fadvise.
311 try to work around this horribly broken OS in a somewhat hackish
312 way. might help other os's too.
313
3143.25 Sat Jun 27 05:18:26 CEST 2009
315 - added IO::AIO::fadvise and IO::AIO::sendfile.
316 - (libeio) replaced quicksort+insertion sort by a tuned radix
317 sort + insertion sort, resulting in comparable runtime (usually
318 faster) to the old version, but without any ill side effects on
319 degenerated (for quicksort) data.
320 - (libeio) correctly sort dirs by inodes if we have perfect type
321 knowledge and DIRS_FIRST is used.
322 - (libeio) internally the wrong DT_* constants were used, but no
323 known system has differing EIO_DT_*/DT_* values, so not an issue.
324 - removed a (harmless) assert that was left over on the code
325 but should not have been.
326 - use more correct types (change IO length from IV to VAL64,
327 which makes a difference on systems without 64 bit perls).
328
3293.23 Sat Jun 13 16:57:58 CEST 2009
330 - fix off-by-one bug in aio_readdir that was introduced in the
331 rushed 3.22 release.
332
3333.22 Sat Jun 13 15:32:40 CEST 2009
334 - speed up readdirx sort algorithm slightly.
335 - bin/treescan was missing from distro tarball.
336
3373.21 Fri Jun 12 18:45:53 CEST 2009
338 - new options --dirs and --files for treescan.
339 - install bin/treescan by default.
340 - (libeio) aio_readdir can now be cancelled while executing.
341 - fix a printf format string for 64 bit systems (could lead
342 to problems on big endian 64 bit systems).
343 - do not use qsort() but our own algorithm: glibc initialises
344 the whole locale and I/O subsystem inside qsort, causing
345 a stack overflow on 32 bit machines. The new sort uses much less
346 stack and is more than twice as fast in typical situations.
347
3483.2 Sun Jun 7 20:30:05 CEST 2009
349 - (libeio) pwrite emulation was even more flawed than intended and did
350 not restore the file offset.
351 - add aio_readdirx, which can return inode and filetype and sort
352 the names in various ways.
353 - unfortunately, utime, chmod, chown on an open file that has just
354 been written can easily block, which caused aio_copy to block the
355 process. no more!
356 - no longer rely on dst path in aio_copy when futime is available.
357
3583.19 Tue Apr 21 22:05:21 CEST 2009
359 - more perl 5.10 workarounds for aio_read and write.
360 - aio_write no longer modifies the sv (if possible).
361 - aio_read now works correctly with magic values.
362
3633.18 Sun Apr 19 21:17:32 CEST 2009
364 - better diagnostics when some aio_* functions get passed an illegal fh.
365 - try to avoid crashes due to incompatible 5.10 API changes. grmbl.
366
3673.17 Thu Nov 20 08:45:36 CET 2008
368 - (libeio) added aio_sync_file_range (untested).
369 - add aio_busy to @IO::AIO::AIO_REQ.
370
3713.16 Wed Oct 22 18:28:01 CEST 2008
372 - use SvREFCNT_inc instead of SvREFCNT_inc_NN in a non-speed critical
373 part to improve portability to perl 5.8 (reported by szymon).
374
3753.15 Mon Oct 13 00:39:55 CEST 2008
376 - automatic removal of feeders was broken.
377 - (libeio) use a more robust method to detect whether a feeder
378 has added something to the group or not.
379
3803.1 Thu Oct 2 13:34:40 CEST 2008
381 - pre-deref the passed callback object, for increased speed
382 and decreased memory usage.
383 - call on_next_submit callback even for aio_group - impact unknown,
384 but seems more correct.
385 - $req->cb now returns the original callback.
386 - (libeio) pass EIO_GROUP/aio_group requests through the queue without
387 requiring a thread switch.
388 - (libeio) status code of aio_futime and aio_utime was always passed 0.
389 - do some other ยต-optimisations.
390
3913.07 Sat Aug 2 16:06:13 CEST 2008
392 - do not include LIBS in autoconf tests.
393
3943.06 Tue Jul 15 12:41:32 CEST 2008
395 - move preadwritelock definition before it's first reference,
396 to make it compile again on broken platforms (they still exist)
397 or badly cofngiured perls (redhat...), reported by Rob Bloodgood.
8 398
93.05 Thu Jun 19 23:23:52 CEST 2008 3993.05 Thu Jun 19 23:23:52 CEST 2008
10 - work around perl overriding readdir etc. with thread-unsafe 400 - work around perl overriding readdir etc. with thread-unsafe
11 (sic!) versions. 401 (sic!) versions.
12 402

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