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Comparing IO-AIO/Changes (file contents):
Revision 1.219 by root, Sat Jan 9 10:03:09 2010 UTC vs.
Revision 1.390 by root, Thu Oct 29 05:13:55 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.?
8TODO: fallocate, if it wouldn't be so useless. 7TODO: emulation for splice?
9TODO: IO::AIO::mmap? aio_mincore? 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/
10 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?)
41TODO: aio_fchdir/chdir? emulate chdirat?
42
43TODO: rt-4.0.18-20109-1573826674-1229.126277-5-0@rt.cpan.org
44TODO: aio_splice, aio_tee
45TODO: copy_file_range
46TODO: write more abpout the thread model, maybe bump some defaults?
47TODO: io_uring, but it's so broken :/
48TODO: allow import of fds as aio_wd
49 - IO::AIO::splice and IO::AIO::tee didn't properly return
50 64 bit values.
51 - added IO::AIO::accept4.
52 - add various F_SEAL related fcntl constants.
53 - removed experimentla marker for fdlimit functions.
54 - fiemap now includes the last segment even if it overflows
55 the end offset, which is arguably the correct behaviour.
56
574.72 Wed Apr 3 04:56:03 CEST 2019
58 - (libeio) if fd 0 is available do not use it for aio_wd, as it
59 collides with IO::AIO::CWD.
60 - added IO::AIO::memfd_create.
61 - correctly include <sys/uio.h> in the vmsplice test.
62 - reduce codesize by ~7% on amd64 by declaring more functions
63 as noinline.
64 - documentation fixes and updates.
65 - experimental and undocumented preliminary support for synchronous statx.
66
674.71 Sun Mar 10 13:09:26 CET 2019
68 - due to an error in the linux manpages, the configure tests
69 for readahead, sync_file_range, splice etc. failed. This has been fixed.
70
714.7 Mon Mar 4 11:28:13 CET 2019
72 - majorly speed up scandir for the very special case of a non-POSIX
73 filesystem that nevertheless reports valid dt_type information.
74 The only known filesystem of this type is currently btrfs, which
75 didn't get it's act together to implement POSIX semantics in all
76 these years, and I am tired of waiting.
77 - add IO::AIO::MCL_ONFAULT for mlockall, add IO::AIO::mlockall.
78 - neither sys/mkdev.h nor sys/sysmacros.h were included, even when they
79 were detected by autoconf.
80
814.6 Sat Aug 25 21:58:36 CEST 2018
82 - add st_btime, st_btimesec, st_btimensec and st_gen accessors,
83 mostly for bsds which expose birthtime and st_gen members (netbsd, freebsd
84 but only st_gen on openbsd because they compiled their perl without support
85 for birthtimes).
86 - fix madvise and munlock to properly support negative offsets.
87 - allocate fd for the aio_close at boot time, to guarantee it working
88 later, rather than calling abort when it fails. also avoids
89 close-on-exec race issues after module load.
90 - #undef utime on win32, maybe this helps some reports of utime hangs.
91 - minor doc improvements.
92 - minor configure cleanups.
93 - use $Config{perllibs} instead of libs for configure. might help people
94 who didn't install all perl dependencies (might break things as well).
95
964.54 Tue Aug 14 13:54:48 CEST 2018
97 - include sys/mkdev.h or sys/sysmacros.h if available.
98 - further tweaks to configure invocation for systems requiring --rpath.
99 - no longer rely on custom paths on win32 platforms.
100 - try to work around buggy PAGESIZE macro on solaris.
101
1024.53 Tue Aug 14 11:27:50 CEST 2018
103 - add $Config{libs} to LIBS for configure, to work around systems
104 with broken library dependencies (... openbsd).
105
1064.52 Sun Aug 12 08:09:45 CEST 2018
107 - config.h.in was missing in distribution.
108
1094.51 Sun Aug 12 07:24:14 CEST 2018
110 - complete rework of the autoconf framework: IO::AIO now uses its own
111 config.h, separate from libeio, and tries to test the actual perl
112 environment, not the standard system environment.
113 - provide nanosecond-accracy stat time accessors for both perl and IO::AIO
114 stat functions.
115 - removed non-portable C++ syntax from eio.c.
116 - try to fix readdir tests on cygwin spuriously failing.
117
1184.5 Wed Aug 1 00:23:55 CEST 2018
119 - aio_mtouch touch all pages as requested, not just the first page in most cases.
120 - new function: IO::AIO::mremap, linux-specific mremap, with constants MREMAP_MAYMOVE
121 and MREMAP_FIXED.
122 - add O_ACCMODE.
123 - add (undocumented) MSG_CMSG_CLOEXEC and SOCK_CLOEXEC constants.
124
1254.4 Tue Feb 20 07:54:12 CET 2018
126 - new aio_slurp request.
127 - add (experimental) IO::AIO::eventfd and timerfd* function.
128 - add (experimental) IO::AIO::get_fdlimit and IO::AIO::min_fdlimit.
129 - point out that aio_copy overwrites existing files.
130 - removed filesystem magic number table from aio_statvfs docs as
131 statvfs doesn't actually return this info at all (statfs does).
132 - add a bunch of (mostly linux-specific) constants for use in ioctls
133 (see aio_ioctl docs).
134 - treescan now has a proper manpage and useful --help output.
135 - new option --sync in treescan, to sync everything in a subtree.
136 - changed default for aio_msync flags to MSYNC_SYNC.
137 - document offset/length behaviour of mprotect/madvise.
138 - support linux's renameat2 (via aio_rename2).
139 - add aio_rename2, an aio_rename with flags.
140 - add F_DUPPFD_CLOEXEC, F_OFD_[SG]ETLKW? constants.
141 - add FALLOC_FL_INSERT_RANGE, FALLOC_FL_UNSHARE_RANGE.
142 - (libeio) use posix_close if available.
143 - (libeio) internal close() calls no longer disturb errno.
144 - add IO:AIO::FALLOC_FL_UNSHARE.
145 - update schmorp.h for removal of USE_SOCKETS_AS_HANDLES
146 and better eventfd detection.
147
1484.34 Sun May 1 19:18:24 CEST 2016
149 - def0.h was not properly generated during previous release, causing
150 compile errors on various platforms.
151 - major/minor were accidentally switched (reported by Alexander Lishenyuk).
152 - removed duplicate definition of MAP_HUGETLB, that was found due to
153 a bug in Perl::Tidy (testcase by alaska332@gmail.com).
154 - added (untested!) aio_fcntl, aio_ioctl requests.
155 - (libeio) names set via prctl are truncated to 15 chars + nul, not 16,
156 as manpages-dev originally claimed.
157
1584.33 Mon Jan 18 12:50:10 CET 2016
159 - add IO::AIO::pipe2 function.
160 - added support for FALLOC_FL_COLLAPSE_RANGE and FALLOC_FL_ZERO_RANGE
161 constants.
162 - added support for O_TMPFILE and O_PATH constants.
163 - added support for MAP_FIXED, MAP_GROWSDOWN,MAP_32BIT, MAP_HUGETLB, MAP_STACK
164 consdtants, whether they can be sensibly used or not.
165 - use NO_INIT where applicable.
166 - update libecb.
167 - added stability canary support.
168 - updated linux super magic table to 4.3.3.
169
1704.32 Wed Feb 11 20:32:11 CET 2015
171 - replace off_t by STRLEN where appropriate, should not result in
172 user-visible changes.
173 - update ecb.h for C11 compatibility.
174
1754.31 Tue Jun 3 03:29:27 CEST 2014
176 - work around more 5.20 bugs. backwards compatibility my ass.
177
1784.3 Fri Apr 11 06:22:38 CEST 2014
179 - perl5porters broke Async::Interrupt, BDB, EV, IO::AIO, OpenCL
180 without warning by switching the meaning of USE_SOCKETS_AS_HANDLES
181 in 5.18. What's so attractive about giving a shit about backwards
182 compatibility - I will never understand.
183
1844.2 Sat Jan 25 01:13:14 CET 2014
185 - aio_group could corrupt memory because it didn't restore
186 the stack after req_submit.
187 - be more careful on (e.g. permission) errors in bin/treescan.
188 - work around changes in ExtUtils::MakeMaker.
189 - (libeio) implement aio_realpath for win32.
190 - (xthread) work around compile time bugs in ptw32.
191 - added IO::AIO::pipesize.
192 - (libecb) insignificant update.
193
1944.19 Sun Jan 6 12:47:26 CET 2013
195 - avoid endless loop in fiemap with some XFS files.
196 - in aio_rename and aio_rmdir, specialcase the case of [$wd, "."]
197 and call rename/rmdir instead of renameat/unlinkat.
198
1994.18 Thu Oct 11 07:01:26 CEST 2012
200 - fix unintended xthread_create by intentionalising it :)
201
2024.17 Thu Oct 11 05:19:47 CEST 2012
203 - rename aio_fallocate to aio_allocate, to match documentation.
204 - add list of linux fsid values to aio_statvfs docs.
205 - work around a bug in btrfs' FIEMAP ioctl implementation.
206 - work around AIX bug: statvfs.f_fsid is a struct, not unsigned long
207 as per unix spec.
208
2094.16 Tue Aug 14 05:39:03 CEST 2012
210 - aio_statvfs was wromgly marked for wd emulation, causing
211 it to malfunction for paths.
212 - fix a crash in aio_fiemap, when used on ranges without any
213 extents.
214 - work around linux kernel bug (at least in 3.2): kernel might
215 trash fiemap input arguments.
216 - work around linux kernel bug (at least in 3.2): kernel does not
217 set FIEMAP_EXTENT_LAST on last segment.
218 - work around linux kernel bug (at least in 3.2): kernel silently
219 truncates segment count if a file.
220 - make fh argument of IO::AIO::mmap optional, also add mmap/munmap
221 to quick overview.
222 - splice can corrupt data.
223 - (libeio) remove pread/pwrite emulation.
224 - do not grow mmaped scalars in aio_read.
225 - add FALLOC_FL_PUNCH_HOLE and document fallocate.
226 - provide pread/pwrite for win32, making it link again on native win32.
227
2284.15 Tue Apr 10 06:59:00 CEST 2012
229 - always include linux/types.h for fiemap, for compatibility to
230 ancient systems (Paul Howarth).
231 - experimental support for IO::AIO::splice and ::tee (no aio_...).
232 - provide SEEK_HOLE and SEEK_DATA, if available.
233 - work around (again!) an immensely stupid bug in RHEL, defining
234 autoconf macros in linux system headers (analysed by Paul Howarth).
235
2364.14 Sat Apr 7 02:45:18 CEST 2012
237 - fix stat structure usage on windows, which caused bogus stat results.
238 - (libeio) make readahead emulation behave more like actual readahead by never failing.
239 - new request aio_seek.
240 - new request aio_fiemap.
241 - autogenerate the #ifdef/#define 0 blocks for symbols we export.
242
2434.12 Fri Dec 30 08:51:25 CET 2011
244 - realpath would return a random value if the name was too long,
245 instead of -1.
246 - port to c89.
247
2484.11 Mon Oct 10 00:24:11 CEST 2011
249 - libeio didn't compile on !linux (Paul Howarth).
250
2514.1 Sun Oct 9 10:24:11 CEST 2011
252 - IO::AIO did access uninitialised memory on unsuccessful stats.
253 - (libeio) added syncfs syscall wrapper.
254 - (libeio) set thread name on linux (ps -L/Hcx, top, gdb).
255 - (libeio) support multiple indepenent working directories.
256 - applied speling corrections by Nicholas Bamber.
257 - tune treescan #threads and #outstanding requests a bit.
258 - reduce the number of file descriptors in use at any one time
259 in treescan, to avoid running out of them (and using too much ram).
260 - take advantage of working directoriy abstractions
261 in aio_scandir and treescan.
262 - reduce compiled size by ~10% by not inlining some key functionality.
263 - added --progress switch to treescan.
264
2654.0 Mon Jul 18 05:01:10 CEST 2011
266 - INCOMPATIBLE CHANGE: fork is no longer supported (indeed, it never was),
267 see FORK BEHAVIOUR in manpage for details.
268 - passes testsuite on win32 now and may actually work
269 (activestate 5.10.1 / MSVC6, YMMV).
270 - (libeio) fix a deadlock where a wakeup signal could be missed when
271 a timeout occured at the same time.
272 - (libeio) added realpath.
273 - (libeio) added fallocate.
274 - (libeio) disabling sendfile on darwin unfortunately broke the emulation.
275 - (libeio) do not acquire any locks when forking.
276 - (libeio) use fewer time() syscalls when waiting for new requests.
277
2783.93 Wed Jun 29 23:44:18 CEST 2011
279 - ECB.H WAS MISSING.
280
2813.92 Wed Jun 29 14:45:41 CEST 2011
282 - ecb.h was missing.
283
2843.91 Wed Jun 29 13:24:42 CEST 2011
285 - (libeio) work around a Linux (and likely FreeBSD and other
286 kernels) bug where sendfile would not transfer all the requested
287 bytes on large transfers, using a heuristic.
288 - buggy sendfile caused aio_move/copy to sometimes fail for big
289 files (fortunately it checks that the whole file has been
290 transferred...)
291 - use libecb for higher performance and higher portability.
292 - (libeio) disable sendfile on darwin, it's too broken.
293 - disable fork tests on !linux, as only linux supports mixing
294 pthread and fork in perl.
295 - document the fact that fork doesn't work anymore when using
296 this module, on anything !GNU/Linux.
297 - increase timeout in t/04_fork.t, as too many CPAN-tester setups
298 run on a 0.1MHz cpu. Or so.
299
3003.9 Fri May 27 02:43:47 CEST 2011
301 - (libeio) fix memory corruption in aio_readdirx for the flags
302 combination READDIR_STAT_ORDER | READDIR_DIRS_FIRST.
303 - add lots of newer POSIX and GNU/Linux-specific open
304 flags.
305
3063.8 Sun Mar 27 12:25:33 CEST 2011
307 - use nonstandard but maybe-working-on-bsd fork technique.
308 - support a max_idle value of 0.
309 - support setting of idle timeout value (IO::AIO::idle_timeout).
310
3113.72 Fri Feb 11 04:25:38 CET 2011
312 - use _POSIX_MEMLOCK_RANGE to detect mlock/munlock.
313 - aio_mknod always used a dev_t value of 0.
314 - new treescan option: --grep.
315 - add more S_IF macros, and major/minor/makedev "macros".
316
3173.71 Thu Dec 30 08:18:46 CET 2010
318 - the numerical result value passed to callbacks did not stringify
319 correctly, due to internal reuse and failure to reset the sv flags.
320 - actually test for posix_[mf]advise, as at least uClibc defines
321 _POSIX_ADVISORY_INFO without actually having any of the required
322 funcitonality. ugh.
323
3243.7 Mon Nov 1 23:00:34 CET 2010
325 - implement/add madvise, mmap, munmap, aio_mlockall, munlockall,
326 aio_mlock, munlock, msync and mtouch to @EXPORT_OK.
327 - document the sad state of affairs w.r.t. pthread on many bsds.
328 - do not enable mmap on systems without _POSIX_MAPPED_FILES
329 (openbsd 4.8).
330 - do not leak memory in IO::AIO::mmap when the scalar already
331 had string-data.
332 - add O_RDWR, O_APPEND and O_EXCL symbols and semi-document
333 them.
334 - cache the result IV, for a minor speedup in the common case.
335 - croak when an mmapped-scalar changes location, to detect
336 user-errors better.
337 - fix aio_readlink prototype.
338
3393.65 Wed Mar 31 02:45:05 CEST 2010
340 - actually use PATH_MAX instead of NAME_MAX for readlink, as to not
341 cut off long pathnames in aio_readlink (based on patch by
342 Rasmus Andersson).
343 - a double fork partially killed the event pipe (great testcase
344 by dormando). affects IO::AIO, BDB and Async::Interrupt.
345 - suck steve's dick and rename our symbols to avoid colliding
346 with nonstandard identifier spam on the broken os x pseudo-os.
347 affects IO::AIO and BDB.
348
3493.6 Mon Jan 11 00:43:39 CET 2010
11 - (libeio) more fixes for the freebsd/apple sendfile - broken by 350 - (libeio) more fixes for the freebsd/apple sendfile - broken by
12 manpage standards, but apparently correct accoridng to actual 351 manpage standards, but apparently correct accoridng to actual
13 kernel sources. 352 kernel sources.
353 - add IO::AIO::mmap/munmap support.
354 - add IO::AIO::m(un)lockall support.
355 - clean up manpage.
14 356
153.5 Thu Jan 7 21:25:04 CET 2010 3573.5 Thu Jan 7 21:25:04 CET 2010
16 - (liebio) fix freebsd sendfile (Vanilla Hsu). 358 - (liebio) fix freebsd sendfile (Vanilla Hsu).
17 - (libeio) also fix darwin sendfile that suffered from a similar bug. 359 - (libeio) also fix darwin sendfile that suffered from a similar bug.
18 - add aio_statvfs as interface to statvfs/fstatvfs. 360 - add aio_statvfs as interface to statvfs/fstatvfs.

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