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Comparing IO-AIO/Changes (file contents):
Revision 1.166 by root, Tue Sep 30 13:17:32 2008 UTC vs.
Revision 1.373 by root, Thu Nov 29 19:49:48 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
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, 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
39TODO: dump config.log when automated testign and configure fails
40TODO: ns time resolution in utime
41
42 - neither sys/mkdev.h nor sys/sysmacros.h were included, even when they
43 were detected by autoconf.
44
454.6 Sat Aug 25 21:58:36 CEST 2018
46 - add st_btime, st_btimesec, st_btimensec and st_gen accessors,
47 mostly for bsds which expose birthtime and st_gen members (netbsd, freebsd
48 but only st_gen on openbsd because they compiled their perl without support
49 for birthtimes).
50 - fix madvise and munlock to properly support negative offsets.
51 - allocate fd for the aio_close at boot time, to guarantee it working
52 later, rather than calling abort when it fails. also avoids
53 close-on-exec race issues after module load.
54 - #undef utime on win32, maybe this helps some reports of utime hangs.
55 - minor doc improvements.
56 - minor configure cleanups.
57 - use $Config{perllibs} instead of libs for configure. might help people
58 who didn'T install all perl dependencies (might break things as well).
59
604.54 Tue Aug 14 13:54:48 CEST 2018
61 - include sys/mkdev.h or sys/sysmacros.h if available.
62 - further tweaks to configure invocation for systems requiring --rpath.
63 - no longer rely on custom paths on win32 platforms.
64 - try to work around buggy PAGESIZE macro on solaris.
65
664.53 Tue Aug 14 11:27:50 CEST 2018
67 - add $Config{libs} to LIBS for configure, to work around systems
68 with broken library dependencies (... openbsd).
69
704.52 Sun Aug 12 08:09:45 CEST 2018
71 - config.h.in was missing in distribution.
72
734.51 Sun Aug 12 07:24:14 CEST 2018
74 - complete rework of the autoconf framework: IO::AIO now uses its own
75 config.h, separate from libeio, and tries to test the actual perl
76 environment, not the standard system environment.
77 - provide nanosecond-accracy stat time accessors for both perl and IO::AIO
78 stat functions.
79 - removed non-portable C++ syntax from eio.c.
80 - try to fix readdir tests on cygwin spuriously failing.
81
824.5 Wed Aug 1 00:23:55 CEST 2018
83 - aio_mtouch touch all pages as requested, not just the first page in most cases.
84 - new function: IO::AIO::mremap, linux-specific mremap, with constants MREMAP_MAYMOVE
85 and MREMAP_FIXED.
86 - add O_ACCMODE.
87 - add (undocumented) MSG_CMSG_CLOEXEC and SOCK_CLOEXEC constants.
88
894.4 Tue Feb 20 07:54:12 CET 2018
90 - new aio_slurp request.
91 - add (experimental) IO::AIO::eventfd and timerfd* function.
92 - add (experimental) IO::AIO::get_fdlimit and IO::AIO::min_fdlimit.
93 - point out that aio_copy overwrites existing files.
94 - removed filesystem magic number table from aio_statvfs docs as
95 statvfs doesn't actually return this info at all (statfs does).
96 - add a bunch of (mostly linux-specific) constants for use in ioctls
97 (see aio_ioctl docs).
98 - treescan now has a proper manpage and useful --help output.
99 - new option --sync in treescan, to sync everything in a subtree.
100 - changed default for aio_msync flags to MSYNC_SYNC.
101 - document offset/length behaviour of mprotect/madvise.
102 - support linux's renameat2 (via aio_rename2).
103 - add aio_rename2, an aio_rename with flags.
104 - add F_DUPPFD_CLOEXEC, F_OFD_[SG]ETLKW? constants.
105 - add FALLOC_FL_INSERT_RANGE, FALLOC_FL_UNSHARE_RANGE.
106 - (libeio) use posix_close if available.
107 - (libeio) internal close() calls no longer disturb errno.
108 - add IO:AIO::FALLOC_FL_UNSHARE.
109 - update schmorp.h for removal of USE_SOCKETS_AS_HANDLES
110 and better eventfd detection.
111
1124.34 Sun May 1 19:18:24 CEST 2016
113 - def0.h was not properly generated during previous release, causing
114 compile errors on various platforms.
115 - major/minor were accidentally switched (reported by Alexander Lishenyuk).
116 - removed duplicate definition of MAP_HUGETLB, that was found due to
117 a bug in Perl::Tidy (testcase by alaska332@gmail.com).
118 - added (untested!) aio_fcntl, aio_ioctl requests.
119 - (libeio) names set via prctl are truncated to 15 chars + nul, not 16,
120 as manpages-dev originally claimed.
121
1224.33 Mon Jan 18 12:50:10 CET 2016
123 - add IO::AIO::pipe2 function.
124 - added support for FALLOC_FL_COLLAPSE_RANGE and FALLOC_FL_ZERO_RANGE
125 constants.
126 - added support for O_TMPFILE and O_PATH constants.
127 - added support for MAP_FIXED, MAP_GROWSDOWN,MAP_32BIT, MAP_HUGETLB, MAP_STACK
128 consdtants, whether they can be sensibly used or not.
129 - use NO_INIT where applicable.
130 - update libecb.
131 - added stability canary support.
132 - updated linux super magic table to 4.3.3.
133
1344.32 Wed Feb 11 20:32:11 CET 2015
135 - replace off_t by STRLEN where appropriate, should not result in
136 user-visible changes.
137 - update ecb.h for C11 compatibility.
138
1394.31 Tue Jun 3 03:29:27 CEST 2014
140 - work around more 5.20 bugs. backwards compatibility my ass.
141
1424.3 Fri Apr 11 06:22:38 CEST 2014
143 - perl5porters broke Async::Interrupt, BDB, EV, IO::AIO, OpenCL
144 without warning by switching the meaning of USE_SOCKETS_AS_HANDLES
145 in 5.18. What's so attractive about giving a shit about backwards
146 compatibility - I will never understand.
147
1484.2 Sat Jan 25 01:13:14 CET 2014
149 - aio_group could corrupt memory because it didn't restore
150 the stack after req_submit.
151 - be more careful on (e.g. permission) errors in bin/treescan.
152 - work around changes in ExtUtils::MakeMaker.
153 - (libeio) implement aio_realpath for win32.
154 - (xthread) work around compile time bugs in ptw32.
155 - added IO::AIO::pipesize.
156 - (libecb) insignificant update.
157
1584.19 Sun Jan 6 12:47:26 CET 2013
159 - avoid endless loop in fiemap with some XFS files.
160 - in aio_rename and aio_rmdir, specialcase the case of [$wd, "."]
161 and call rename/rmdir instead of renameat/unlinkat.
162
1634.18 Thu Oct 11 07:01:26 CEST 2012
164 - fix unintended xthread_create by intentionalising it :)
165
1664.17 Thu Oct 11 05:19:47 CEST 2012
167 - rename aio_fallocate to aio_allocate, to match documentation.
168 - add list of linux fsid values to aio_statvfs docs.
169 - work around a bug in btrfs' FIEMAP ioctl implementation.
170 - work around AIX bug: statvfs.f_fsid is a struct, not unsigned long
171 as per unix spec.
172
1734.16 Tue Aug 14 05:39:03 CEST 2012
174 - aio_statvfs was wromgly marked for wd emulation, causing
175 it to malfunction for paths.
176 - fix a crash in aio_fiemap, when used on ranges without any
177 extents.
178 - work around linux kernel bug (at least in 3.2): kernel might
179 trash fiemap input arguments.
180 - work around linux kernel bug (at least in 3.2): kernel does not
181 set FIEMAP_EXTENT_LAST on last segment.
182 - work around linux kernel bug (at least in 3.2): kernel silently
183 truncates segment count if a file.
184 - make fh argument of IO::AIO::mmap optional, also add mmap/munmap
185 to quick overview.
186 - splice can corrupt data.
187 - (libeio) remove pread/pwrite emulation.
188 - do not grow mmaped scalars in aio_read.
189 - add FALLOC_FL_PUNCH_HOLE and document fallocate.
190 - provide pread/pwrite for win32, making it link again on native win32.
191
1924.15 Tue Apr 10 06:59:00 CEST 2012
193 - always include linux/types.h for fiemap, for compatibility to
194 ancient systems (Paul Howarth).
195 - experimental support for IO::AIO::splice and ::tee (no aio_...).
196 - provide SEEK_HOLE and SEEK_DATA, if available.
197 - work around (again!) an immensely stupid bug in RHEL, defining
198 autoconf macros in linux system headers (analysed by Paul Howarth).
199
2004.14 Sat Apr 7 02:45:18 CEST 2012
201 - fix stat structure usage on windows, which caused bogus stat results.
202 - (libeio) make readahead emulation behave more like actual readahead by never failing.
203 - new request aio_seek.
204 - new request aio_fiemap.
205 - autogenerate the #ifdef/#define 0 blocks for symbols we export.
206
2074.12 Fri Dec 30 08:51:25 CET 2011
208 - realpath would return a random value if the name was too long,
209 instead of -1.
210 - port to c89.
211
2124.11 Mon Oct 10 00:24:11 CEST 2011
213 - libeio didn't compile on !linux (Paul Howarth).
214
2154.1 Sun Oct 9 10:24:11 CEST 2011
216 - IO::AIO did access uninitialised memory on unsuccessful stats.
217 - (libeio) added syncfs syscall wrapper.
218 - (libeio) set thread name on linux (ps -L/Hcx, top, gdb).
219 - (libeio) support multiple indepenent working directories.
220 - applied speling corrections by Nicholas Bamber.
221 - tune treescan #threads and #outstanding requests a bit.
222 - reduce the number of file descriptors in use at any one time
223 in treescan, to avoid running out of them (and using too much ram).
224 - take advantage of working directoriy abstractions
225 in aio_scandir and treescan.
226 - reduce compiled size by ~10% by not inlining some key functionality.
227 - added --progress switch to treescan.
228
2294.0 Mon Jul 18 05:01:10 CEST 2011
230 - INCOMPATIBLE CHANGE: fork is no longer supported (indeed, it never was),
231 see FORK BEHAVIOUR in manpage for details.
232 - passes testsuite on win32 now and may actually work
233 (activestate 5.10.1 / MSVC6, YMMV).
234 - (libeio) fix a deadlock where a wakeup signal could be missed when
235 a timeout occured at the same time.
236 - (libeio) added realpath.
237 - (libeio) added fallocate.
238 - (libeio) disabling sendfile on darwin unfortunately broke the emulation.
239 - (libeio) do not acquire any locks when forking.
240 - (libeio) use fewer time() syscalls when waiting for new requests.
241
2423.93 Wed Jun 29 23:44:18 CEST 2011
243 - ECB.H WAS MISSING.
244
2453.92 Wed Jun 29 14:45:41 CEST 2011
246 - ecb.h was missing.
247
2483.91 Wed Jun 29 13:24:42 CEST 2011
249 - (libeio) work around a Linux (and likely FreeBSD and other
250 kernels) bug where sendfile would not transfer all the requested
251 bytes on large transfers, using a heuristic.
252 - buggy sendfile caused aio_move/copy to sometimes fail for big
253 files (fortunately it checks that the whole file has been
254 transferred...)
255 - use libecb for higher performance and higher portability.
256 - (libeio) disable sendfile on darwin, it's too broken.
257 - disable fork tests on !linux, as only linux supports mixing
258 pthread and fork in perl.
259 - document the fact that fork doesn't work anymore when using
260 this module, on anything !GNU/Linux.
261 - increase timeout in t/04_fork.t, as too many CPAN-tester setups
262 run on a 0.1MHz cpu. Or so.
263
2643.9 Fri May 27 02:43:47 CEST 2011
265 - (libeio) fix memory corruption in aio_readdirx for the flags
266 combination READDIR_STAT_ORDER | READDIR_DIRS_FIRST.
267 - add lots of newer POSIX and GNU/Linux-specific open
268 flags.
269
2703.8 Sun Mar 27 12:25:33 CEST 2011
271 - use nonstandard but maybe-working-on-bsd fork technique.
272 - support a max_idle value of 0.
273 - support setting of idle timeout value (IO::AIO::idle_timeout).
274
2753.72 Fri Feb 11 04:25:38 CET 2011
276 - use _POSIX_MEMLOCK_RANGE to detect mlock/munlock.
277 - aio_mknod always used a dev_t value of 0.
278 - new treescan option: --grep.
279 - add more S_IF macros, and major/minor/makedev "macros".
280
2813.71 Thu Dec 30 08:18:46 CET 2010
282 - the numerical result value passed to callbacks did not stringify
283 correctly, due to internal reuse and failure to reset the sv flags.
284 - actually test for posix_[mf]advise, as at least uClibc defines
285 _POSIX_ADVISORY_INFO without actually having any of the required
286 funcitonality. ugh.
287
2883.7 Mon Nov 1 23:00:34 CET 2010
289 - implement/add madvise, mmap, munmap, aio_mlockall, munlockall,
290 aio_mlock, munlock, msync and mtouch to @EXPORT_OK.
291 - document the sad state of affairs w.r.t. pthread on many bsds.
292 - do not enable mmap on systems without _POSIX_MAPPED_FILES
293 (openbsd 4.8).
294 - do not leak memory in IO::AIO::mmap when the scalar already
295 had string-data.
296 - add O_RDWR, O_APPEND and O_EXCL symbols and semi-document
297 them.
298 - cache the result IV, for a minor speedup in the common case.
299 - croak when an mmapped-scalar changes location, to detect
300 user-errors better.
301 - fix aio_readlink prototype.
302
3033.65 Wed Mar 31 02:45:05 CEST 2010
304 - actually use PATH_MAX instead of NAME_MAX for readlink, as to not
305 cut off long pathnames in aio_readlink (based on patch by
306 Rasmus Andersson).
307 - a double fork partially killed the event pipe (great testcase
308 by dormando). affects IO::AIO, BDB and Async::Interrupt.
309 - suck steve's dick and rename our symbols to avoid colliding
310 with nonstandard identifier spam on the broken os x pseudo-os.
311 affects IO::AIO and BDB.
312
3133.6 Mon Jan 11 00:43:39 CET 2010
314 - (libeio) more fixes for the freebsd/apple sendfile - broken by
315 manpage standards, but apparently correct accoridng to actual
316 kernel sources.
317 - add IO::AIO::mmap/munmap support.
318 - add IO::AIO::m(un)lockall support.
319 - clean up manpage.
320
3213.5 Thu Jan 7 21:25:04 CET 2010
322 - (liebio) fix freebsd sendfile (Vanilla Hsu).
323 - (libeio) also fix darwin sendfile that suffered from a similar bug.
324 - add aio_statvfs as interface to statvfs/fstatvfs.
325 - work around buggy symlink() on cygwin in the testsuite.
326 - wtf. freebsd-8.0 actually passes the testsuite! I knew
327 they could implement fork and semaphores one day! cheers!
328
3293.4 Sat Jan 2 15:13:04 CET 2010
330 - (libeio) max_poll_time was not properly converted to ticks.
331 - clarify cancel_subs description.
332 - IO::AIO::sendfile did not actually return the return value
333 from the sendfile call.
334 - implement aio_msync, aio_mtouch.
335 - (libeio) tentatively support darwin in sendfile.
336
3373.31 Thu Nov 12 02:14:29 CET 2009
338 - fix result status documentation of aio_copy, aio_move.
339 - speed up object creation considerably by avoiding
340 hash lookups.
341
3423.3 Wed Aug 5 13:52:58 CEST 2009
343 - use common::sense.
344 - use common schmorp.h header.
345 - allow integers (file descriptors) in addition to file handles.
346 - take advantage of linux' eventfd (but it seems slower on smp?).
347 - use poll not select on posix platforms.
348
3493.261 Wed Jul 1 10:11:51 CEST 2009
350 - more 0S X workarounds (patch by Tokuhiro Matsuno).
351
3523.26 Tue Jun 30 09:33:26 CEST 2009
353 - 0S X of course claims to be posix 2008 but lacks posix_fadvise.
354 try to work around this horribly broken OS in a somewhat hackish
355 way. might help other os's too.
356
3573.25 Sat Jun 27 05:18:26 CEST 2009
358 - added IO::AIO::fadvise and IO::AIO::sendfile.
359 - (libeio) replaced quicksort+insertion sort by a tuned radix
360 sort + insertion sort, resulting in comparable runtime (usually
361 faster) to the old version, but without any ill side effects on
362 degenerated (for quicksort) data.
363 - (libeio) correctly sort dirs by inodes if we have perfect type
364 knowledge and DIRS_FIRST is used.
365 - (libeio) internally the wrong DT_* constants were used, but no
366 known system has differing EIO_DT_*/DT_* values, so not an issue.
367 - removed a (harmless) assert that was left over on the code
368 but should not have been.
369 - use more correct types (change IO length from IV to VAL64,
370 which makes a difference on systems without 64 bit perls).
371
3723.23 Sat Jun 13 16:57:58 CEST 2009
373 - fix off-by-one bug in aio_readdir that was introduced in the
374 rushed 3.22 release.
375
3763.22 Sat Jun 13 15:32:40 CEST 2009
377 - speed up readdirx sort algorithm slightly.
378 - bin/treescan was missing from distro tarball.
379
3803.21 Fri Jun 12 18:45:53 CEST 2009
381 - new options --dirs and --files for treescan.
382 - install bin/treescan by default.
383 - (libeio) aio_readdir can now be cancelled while executing.
384 - fix a printf format string for 64 bit systems (could lead
385 to problems on big endian 64 bit systems).
386 - do not use qsort() but our own algorithm: glibc initialises
387 the whole locale and I/O subsystem inside qsort, causing
388 a stack overflow on 32 bit machines. The new sort uses much less
389 stack and is more than twice as fast in typical situations.
390
3913.2 Sun Jun 7 20:30:05 CEST 2009
392 - (libeio) pwrite emulation was even more flawed than intended and did
393 not restore the file offset.
394 - add aio_readdirx, which can return inode and filetype and sort
395 the names in various ways.
396 - unfortunately, utime, chmod, chown on an open file that has just
397 been written can easily block, which caused aio_copy to block the
398 process. no more!
399 - no longer rely on dst path in aio_copy when futime is available.
400
4013.19 Tue Apr 21 22:05:21 CEST 2009
402 - more perl 5.10 workarounds for aio_read and write.
403 - aio_write no longer modifies the sv (if possible).
404 - aio_read now works correctly with magic values.
405
4063.18 Sun Apr 19 21:17:32 CEST 2009
407 - better diagnostics when some aio_* functions get passed an illegal fh.
408 - try to avoid crashes due to incompatible 5.10 API changes. grmbl.
409
4103.17 Thu Nov 20 08:45:36 CET 2008
411 - (libeio) added aio_sync_file_range (untested).
412 - add aio_busy to @IO::AIO::AIO_REQ.
413
4143.16 Wed Oct 22 18:28:01 CEST 2008
415 - use SvREFCNT_inc instead of SvREFCNT_inc_NN in a non-speed critical
416 part to improve portability to perl 5.8 (reported by szymon).
417
4183.15 Mon Oct 13 00:39:55 CEST 2008
419 - automatic removal of feeders was broken.
420 - (libeio) use a more robust method to detect whether a feeder
421 has added something to the group or not.
422
4233.1 Thu Oct 2 13:34:40 CEST 2008
424 - pre-deref the passed callback object, for increased speed
425 and decreased memory usage.
9 - call on_next_submit callback even fro aio_group - impact unknown, 426 - call on_next_submit callback even for aio_group - impact unknown,
10 but seems more correct. 427 but seems more correct.
428 - $req->cb now returns the original callback.
11 - (libeio) pass EIO_GROUP/aio_group requests through the queue without 429 - (libeio) pass EIO_GROUP/aio_group requests through the queue without
12 requiring a thread switch. 430 requiring a thread switch.
431 - (libeio) status code of aio_futime and aio_utime was always passed 0.
13 - do some other µ-optimisations. 432 - do some other µ-optimisations.
14 433
153.07 Sat Aug 2 16:06:13 CEST 2008 4343.07 Sat Aug 2 16:06:13 CEST 2008
16 - do not include LIBS in autoconf tests. 435 - do not include LIBS in autoconf tests.
17 436

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