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Comparing IO-AIO/Changes (file contents):
Revision 1.195 by root, Mon Jun 15 05:34:49 2009 UTC vs.
Revision 1.389 by root, Thu Sep 3 17:20:45 2020 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? (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: name_to_handle_At + open_by_handle_at = clone fds
20TODO: lchown
21TODO: mount/umount2/MS_* flags
22TODO: fsmount/fsconfig et al. https://lwn.net/Articles/759499/
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: FIDEDUPERANGE, file_ioctl.c
29TODO: mincore
30TODO: SOCK_CLOEXEc etc.
31TODO: unlinkat flags, linkat flags, statat, renameat2 flags
32TODO: https://kernelnewbies.org/Linux_4.11
33TODO: define useful rules for [[$wd, $path], $path] &c and implement them
34TODO: https://github.com/coreutils/coreutils/blob/master/src/stat.c maybe IO::AIO::FSID
35TODO: mlock2, MLOCK_ONFAULT
36TODO: dup3, pipe2, accept4
37TODO: dump config.log when automated testign and configure fails
38TODO: ns time resolution in utime
39TODO: statx
40TODO: pidfd_open/pidfd_send_signal (open/poll /proc?)
41
42TODO: rt-4.0.18-20109-1573826674-1229.126277-5-0@rt.cpan.org
43TODO: aio_splice, aio_tee
44TODO: copy_file_range
45TODO: write more abpout the threqad model, maybe bump some defaults?
46 - IO::AIO::splice and IO::AIO::tee didn't properly return
47 64 bit values.
48 - added IO::AIO::accept4.
49 - add various F_SEAL related fcntl constants.
50 - removed experimentla marker for fdlimit functions.
51 - fiemap now includes the last segment even if it overflows
52 the end offset, which is arguably the corretc behaviour.
53
544.72 Wed Apr 3 04:56:03 CEST 2019
55 - (libeio) if fd 0 is available do not use it for aio_wd, as it
56 collides with IO::AIO::CWD.
57 - added IO::AIO::memfd_create.
58 - correctly include <sys/uio.h> in the vmsplice test.
59 - reduce codesize by ~7% on amd64 by declaring more functions
60 as noinline.
61 - documentation fixes and updates.
62 - experimental and undocumented preliminary support for synchronous statx.
63
644.71 Sun Mar 10 13:09:26 CET 2019
65 - due to an error in the linux manpages, the configure tests
66 for readahead, sync_file_range, splice etc. failed. This has been fixed.
67
684.7 Mon Mar 4 11:28:13 CET 2019
69 - majorly speed up scandir for the very special case of a non-POSIX
70 filesystem that nevertheless reports valid dt_type information.
71 The only known filesystem of this type is currently btrfs, which
72 didn't get it's act together to implement POSIX semantics in all
73 these years, and I am tired of waiting.
74 - add IO::AIO::MCL_ONFAULT for mlockall, add IO::AIO::mlockall.
75 - neither sys/mkdev.h nor sys/sysmacros.h were included, even when they
76 were detected by autoconf.
77
784.6 Sat Aug 25 21:58:36 CEST 2018
79 - add st_btime, st_btimesec, st_btimensec and st_gen accessors,
80 mostly for bsds which expose birthtime and st_gen members (netbsd, freebsd
81 but only st_gen on openbsd because they compiled their perl without support
82 for birthtimes).
83 - fix madvise and munlock to properly support negative offsets.
84 - allocate fd for the aio_close at boot time, to guarantee it working
85 later, rather than calling abort when it fails. also avoids
86 close-on-exec race issues after module load.
87 - #undef utime on win32, maybe this helps some reports of utime hangs.
88 - minor doc improvements.
89 - minor configure cleanups.
90 - use $Config{perllibs} instead of libs for configure. might help people
91 who didn't install all perl dependencies (might break things as well).
92
934.54 Tue Aug 14 13:54:48 CEST 2018
94 - include sys/mkdev.h or sys/sysmacros.h if available.
95 - further tweaks to configure invocation for systems requiring --rpath.
96 - no longer rely on custom paths on win32 platforms.
97 - try to work around buggy PAGESIZE macro on solaris.
98
994.53 Tue Aug 14 11:27:50 CEST 2018
100 - add $Config{libs} to LIBS for configure, to work around systems
101 with broken library dependencies (... openbsd).
102
1034.52 Sun Aug 12 08:09:45 CEST 2018
104 - config.h.in was missing in distribution.
105
1064.51 Sun Aug 12 07:24:14 CEST 2018
107 - complete rework of the autoconf framework: IO::AIO now uses its own
108 config.h, separate from libeio, and tries to test the actual perl
109 environment, not the standard system environment.
110 - provide nanosecond-accracy stat time accessors for both perl and IO::AIO
111 stat functions.
112 - removed non-portable C++ syntax from eio.c.
113 - try to fix readdir tests on cygwin spuriously failing.
114
1154.5 Wed Aug 1 00:23:55 CEST 2018
116 - aio_mtouch touch all pages as requested, not just the first page in most cases.
117 - new function: IO::AIO::mremap, linux-specific mremap, with constants MREMAP_MAYMOVE
118 and MREMAP_FIXED.
119 - add O_ACCMODE.
120 - add (undocumented) MSG_CMSG_CLOEXEC and SOCK_CLOEXEC constants.
121
1224.4 Tue Feb 20 07:54:12 CET 2018
123 - new aio_slurp request.
124 - add (experimental) IO::AIO::eventfd and timerfd* function.
125 - add (experimental) IO::AIO::get_fdlimit and IO::AIO::min_fdlimit.
126 - point out that aio_copy overwrites existing files.
127 - removed filesystem magic number table from aio_statvfs docs as
128 statvfs doesn't actually return this info at all (statfs does).
129 - add a bunch of (mostly linux-specific) constants for use in ioctls
130 (see aio_ioctl docs).
131 - treescan now has a proper manpage and useful --help output.
132 - new option --sync in treescan, to sync everything in a subtree.
133 - changed default for aio_msync flags to MSYNC_SYNC.
134 - document offset/length behaviour of mprotect/madvise.
135 - support linux's renameat2 (via aio_rename2).
136 - add aio_rename2, an aio_rename with flags.
137 - add F_DUPPFD_CLOEXEC, F_OFD_[SG]ETLKW? constants.
138 - add FALLOC_FL_INSERT_RANGE, FALLOC_FL_UNSHARE_RANGE.
139 - (libeio) use posix_close if available.
140 - (libeio) internal close() calls no longer disturb errno.
141 - add IO:AIO::FALLOC_FL_UNSHARE.
142 - update schmorp.h for removal of USE_SOCKETS_AS_HANDLES
143 and better eventfd detection.
144
1454.34 Sun May 1 19:18:24 CEST 2016
146 - def0.h was not properly generated during previous release, causing
147 compile errors on various platforms.
148 - major/minor were accidentally switched (reported by Alexander Lishenyuk).
149 - removed duplicate definition of MAP_HUGETLB, that was found due to
150 a bug in Perl::Tidy (testcase by alaska332@gmail.com).
151 - added (untested!) aio_fcntl, aio_ioctl requests.
152 - (libeio) names set via prctl are truncated to 15 chars + nul, not 16,
153 as manpages-dev originally claimed.
154
1554.33 Mon Jan 18 12:50:10 CET 2016
156 - add IO::AIO::pipe2 function.
157 - added support for FALLOC_FL_COLLAPSE_RANGE and FALLOC_FL_ZERO_RANGE
158 constants.
159 - added support for O_TMPFILE and O_PATH constants.
160 - added support for MAP_FIXED, MAP_GROWSDOWN,MAP_32BIT, MAP_HUGETLB, MAP_STACK
161 consdtants, whether they can be sensibly used or not.
162 - use NO_INIT where applicable.
163 - update libecb.
164 - added stability canary support.
165 - updated linux super magic table to 4.3.3.
166
1674.32 Wed Feb 11 20:32:11 CET 2015
168 - replace off_t by STRLEN where appropriate, should not result in
169 user-visible changes.
170 - update ecb.h for C11 compatibility.
171
1724.31 Tue Jun 3 03:29:27 CEST 2014
173 - work around more 5.20 bugs. backwards compatibility my ass.
174
1754.3 Fri Apr 11 06:22:38 CEST 2014
176 - perl5porters broke Async::Interrupt, BDB, EV, IO::AIO, OpenCL
177 without warning by switching the meaning of USE_SOCKETS_AS_HANDLES
178 in 5.18. What's so attractive about giving a shit about backwards
179 compatibility - I will never understand.
180
1814.2 Sat Jan 25 01:13:14 CET 2014
182 - aio_group could corrupt memory because it didn't restore
183 the stack after req_submit.
184 - be more careful on (e.g. permission) errors in bin/treescan.
185 - work around changes in ExtUtils::MakeMaker.
186 - (libeio) implement aio_realpath for win32.
187 - (xthread) work around compile time bugs in ptw32.
188 - added IO::AIO::pipesize.
189 - (libecb) insignificant update.
190
1914.19 Sun Jan 6 12:47:26 CET 2013
192 - avoid endless loop in fiemap with some XFS files.
193 - in aio_rename and aio_rmdir, specialcase the case of [$wd, "."]
194 and call rename/rmdir instead of renameat/unlinkat.
195
1964.18 Thu Oct 11 07:01:26 CEST 2012
197 - fix unintended xthread_create by intentionalising it :)
198
1994.17 Thu Oct 11 05:19:47 CEST 2012
200 - rename aio_fallocate to aio_allocate, to match documentation.
201 - add list of linux fsid values to aio_statvfs docs.
202 - work around a bug in btrfs' FIEMAP ioctl implementation.
203 - work around AIX bug: statvfs.f_fsid is a struct, not unsigned long
204 as per unix spec.
205
2064.16 Tue Aug 14 05:39:03 CEST 2012
207 - aio_statvfs was wromgly marked for wd emulation, causing
208 it to malfunction for paths.
209 - fix a crash in aio_fiemap, when used on ranges without any
210 extents.
211 - work around linux kernel bug (at least in 3.2): kernel might
212 trash fiemap input arguments.
213 - work around linux kernel bug (at least in 3.2): kernel does not
214 set FIEMAP_EXTENT_LAST on last segment.
215 - work around linux kernel bug (at least in 3.2): kernel silently
216 truncates segment count if a file.
217 - make fh argument of IO::AIO::mmap optional, also add mmap/munmap
218 to quick overview.
219 - splice can corrupt data.
220 - (libeio) remove pread/pwrite emulation.
221 - do not grow mmaped scalars in aio_read.
222 - add FALLOC_FL_PUNCH_HOLE and document fallocate.
223 - provide pread/pwrite for win32, making it link again on native win32.
224
2254.15 Tue Apr 10 06:59:00 CEST 2012
226 - always include linux/types.h for fiemap, for compatibility to
227 ancient systems (Paul Howarth).
228 - experimental support for IO::AIO::splice and ::tee (no aio_...).
229 - provide SEEK_HOLE and SEEK_DATA, if available.
230 - work around (again!) an immensely stupid bug in RHEL, defining
231 autoconf macros in linux system headers (analysed by Paul Howarth).
232
2334.14 Sat Apr 7 02:45:18 CEST 2012
234 - fix stat structure usage on windows, which caused bogus stat results.
235 - (libeio) make readahead emulation behave more like actual readahead by never failing.
236 - new request aio_seek.
237 - new request aio_fiemap.
238 - autogenerate the #ifdef/#define 0 blocks for symbols we export.
239
2404.12 Fri Dec 30 08:51:25 CET 2011
241 - realpath would return a random value if the name was too long,
242 instead of -1.
243 - port to c89.
244
2454.11 Mon Oct 10 00:24:11 CEST 2011
246 - libeio didn't compile on !linux (Paul Howarth).
247
2484.1 Sun Oct 9 10:24:11 CEST 2011
249 - IO::AIO did access uninitialised memory on unsuccessful stats.
250 - (libeio) added syncfs syscall wrapper.
251 - (libeio) set thread name on linux (ps -L/Hcx, top, gdb).
252 - (libeio) support multiple indepenent working directories.
253 - applied speling corrections by Nicholas Bamber.
254 - tune treescan #threads and #outstanding requests a bit.
255 - reduce the number of file descriptors in use at any one time
256 in treescan, to avoid running out of them (and using too much ram).
257 - take advantage of working directoriy abstractions
258 in aio_scandir and treescan.
259 - reduce compiled size by ~10% by not inlining some key functionality.
260 - added --progress switch to treescan.
261
2624.0 Mon Jul 18 05:01:10 CEST 2011
263 - INCOMPATIBLE CHANGE: fork is no longer supported (indeed, it never was),
264 see FORK BEHAVIOUR in manpage for details.
265 - passes testsuite on win32 now and may actually work
266 (activestate 5.10.1 / MSVC6, YMMV).
267 - (libeio) fix a deadlock where a wakeup signal could be missed when
268 a timeout occured at the same time.
269 - (libeio) added realpath.
270 - (libeio) added fallocate.
271 - (libeio) disabling sendfile on darwin unfortunately broke the emulation.
272 - (libeio) do not acquire any locks when forking.
273 - (libeio) use fewer time() syscalls when waiting for new requests.
274
2753.93 Wed Jun 29 23:44:18 CEST 2011
276 - ECB.H WAS MISSING.
277
2783.92 Wed Jun 29 14:45:41 CEST 2011
279 - ecb.h was missing.
280
2813.91 Wed Jun 29 13:24:42 CEST 2011
282 - (libeio) work around a Linux (and likely FreeBSD and other
283 kernels) bug where sendfile would not transfer all the requested
284 bytes on large transfers, using a heuristic.
285 - buggy sendfile caused aio_move/copy to sometimes fail for big
286 files (fortunately it checks that the whole file has been
287 transferred...)
288 - use libecb for higher performance and higher portability.
289 - (libeio) disable sendfile on darwin, it's too broken.
290 - disable fork tests on !linux, as only linux supports mixing
291 pthread and fork in perl.
292 - document the fact that fork doesn't work anymore when using
293 this module, on anything !GNU/Linux.
294 - increase timeout in t/04_fork.t, as too many CPAN-tester setups
295 run on a 0.1MHz cpu. Or so.
296
2973.9 Fri May 27 02:43:47 CEST 2011
298 - (libeio) fix memory corruption in aio_readdirx for the flags
299 combination READDIR_STAT_ORDER | READDIR_DIRS_FIRST.
300 - add lots of newer POSIX and GNU/Linux-specific open
301 flags.
302
3033.8 Sun Mar 27 12:25:33 CEST 2011
304 - use nonstandard but maybe-working-on-bsd fork technique.
305 - support a max_idle value of 0.
306 - support setting of idle timeout value (IO::AIO::idle_timeout).
307
3083.72 Fri Feb 11 04:25:38 CET 2011
309 - use _POSIX_MEMLOCK_RANGE to detect mlock/munlock.
310 - aio_mknod always used a dev_t value of 0.
311 - new treescan option: --grep.
312 - add more S_IF macros, and major/minor/makedev "macros".
313
3143.71 Thu Dec 30 08:18:46 CET 2010
315 - the numerical result value passed to callbacks did not stringify
316 correctly, due to internal reuse and failure to reset the sv flags.
317 - actually test for posix_[mf]advise, as at least uClibc defines
318 _POSIX_ADVISORY_INFO without actually having any of the required
319 funcitonality. ugh.
320
3213.7 Mon Nov 1 23:00:34 CET 2010
322 - implement/add madvise, mmap, munmap, aio_mlockall, munlockall,
323 aio_mlock, munlock, msync and mtouch to @EXPORT_OK.
324 - document the sad state of affairs w.r.t. pthread on many bsds.
325 - do not enable mmap on systems without _POSIX_MAPPED_FILES
326 (openbsd 4.8).
327 - do not leak memory in IO::AIO::mmap when the scalar already
328 had string-data.
329 - add O_RDWR, O_APPEND and O_EXCL symbols and semi-document
330 them.
331 - cache the result IV, for a minor speedup in the common case.
332 - croak when an mmapped-scalar changes location, to detect
333 user-errors better.
334 - fix aio_readlink prototype.
335
3363.65 Wed Mar 31 02:45:05 CEST 2010
337 - actually use PATH_MAX instead of NAME_MAX for readlink, as to not
338 cut off long pathnames in aio_readlink (based on patch by
339 Rasmus Andersson).
340 - a double fork partially killed the event pipe (great testcase
341 by dormando). affects IO::AIO, BDB and Async::Interrupt.
342 - suck steve's dick and rename our symbols to avoid colliding
343 with nonstandard identifier spam on the broken os x pseudo-os.
344 affects IO::AIO and BDB.
345
3463.6 Mon Jan 11 00:43:39 CET 2010
347 - (libeio) more fixes for the freebsd/apple sendfile - broken by
348 manpage standards, but apparently correct accoridng to actual
349 kernel sources.
350 - add IO::AIO::mmap/munmap support.
351 - add IO::AIO::m(un)lockall support.
352 - clean up manpage.
353
3543.5 Thu Jan 7 21:25:04 CET 2010
355 - (liebio) fix freebsd sendfile (Vanilla Hsu).
356 - (libeio) also fix darwin sendfile that suffered from a similar bug.
357 - add aio_statvfs as interface to statvfs/fstatvfs.
358 - work around buggy symlink() on cygwin in the testsuite.
359 - wtf. freebsd-8.0 actually passes the testsuite! I knew
360 they could implement fork and semaphores one day! cheers!
361
3623.4 Sat Jan 2 15:13:04 CET 2010
363 - (libeio) max_poll_time was not properly converted to ticks.
364 - clarify cancel_subs description.
365 - IO::AIO::sendfile did not actually return the return value
366 from the sendfile call.
367 - implement aio_msync, aio_mtouch.
368 - (libeio) tentatively support darwin in sendfile.
369
3703.31 Thu Nov 12 02:14:29 CET 2009
371 - fix result status documentation of aio_copy, aio_move.
372 - speed up object creation considerably by avoiding
373 hash lookups.
374
3753.3 Wed Aug 5 13:52:58 CEST 2009
376 - use common::sense.
377 - use common schmorp.h header.
378 - allow integers (file descriptors) in addition to file handles.
379 - take advantage of linux' eventfd (but it seems slower on smp?).
380 - use poll not select on posix platforms.
381
3823.261 Wed Jul 1 10:11:51 CEST 2009
383 - more 0S X workarounds (patch by Tokuhiro Matsuno).
384
3853.26 Tue Jun 30 09:33:26 CEST 2009
386 - 0S X of course claims to be posix 2008 but lacks posix_fadvise.
387 try to work around this horribly broken OS in a somewhat hackish
388 way. might help other os's too.
389
3903.25 Sat Jun 27 05:18:26 CEST 2009
391 - added IO::AIO::fadvise and IO::AIO::sendfile.
9 - (libeio) replaced quicksort+insertion sort by a tuned radix 392 - (libeio) replaced quicksort+insertion sort by a tuned radix
10 sort + insertion sort, resulting in comparable runtime (usually 393 sort + insertion sort, resulting in comparable runtime (usually
11 faster) to the old version, but without any ill side effects on 394 faster) to the old version, but without any ill side effects on
12 degenerated (for quicksort) data. 395 degenerated (for quicksort) data.
13 - (libeio) correctly sort dirs by inodes if we have perfect type 396 - (libeio) correctly sort dirs by inodes if we have perfect type
14 knowledge and DIRS_FIRST is used. 397 knowledge and DIRS_FIRST is used.
15 - (libeio) internally the wrong DT_* constants were used, but no 398 - (libeio) internally the wrong DT_* constants were used, but no
16 known system has differing EIO_DT_*/DT_* values, so not an issue. 399 known system has differing EIO_DT_*/DT_* values, so not an issue.
17 - removed a (harmless) assert that was left over on the code 400 - removed a (harmless) assert that was left over on the code
18 but should not have been. 401 but should not have been.
402 - use more correct types (change IO length from IV to VAL64,
403 which makes a difference on systems without 64 bit perls).
19 404
203.23 Sat Jun 13 16:57:58 CEST 2009 4053.23 Sat Jun 13 16:57:58 CEST 2009
21 - fix off-by-one bug in aio_readdir that was introduced in the 406 - fix off-by-one bug in aio_readdir that was introduced in the
22 rushed 3.22 release. 407 rushed 3.22 release.
23 408

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