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Comparing IO-AIO/Changes (file contents):
Revision 1.188 by root, Sun Jun 7 22:37:54 2009 UTC vs.
Revision 1.367 by root, Tue Aug 14 14:03:15 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? (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
39
404.54 Tue Aug 14 13:54:48 CEST 2018
41 - include sys/mkdev.h or sys/sysmacros.h if available.
42 - further tweaks to configure invocation for systems requiring --rpath.
43 - no longer rely on custom paths on win32 platforms.
44 - try to work around buggy PAGESIZE macro on solaris.
45
464.53 Tue Aug 14 11:27:50 CEST 2018
47 - add $Config{libs} to LIBS for configure, to work around systems
48 with broken library dependencies (... openbsd).
49
504.52 Sun Aug 12 08:09:45 CEST 2018
51 - config.h.in was missing in distribution.
52
534.51 Sun Aug 12 07:24:14 CEST 2018
54 - complete rework of the autoconf framework: IO::AIO now uses its own
55 config.h, separate from libeio, and tries to test the actual perl
56 environment, not the standard system environment.
57 - provide nanosecond-accracy stat time accessors for both perl and IO::AIO
58 stat functions.
59 - removed non-portable C++ syntax from eio.c.
60 - try to fix readdir tests on cygwin spuriously failing.
61
624.5 Wed Aug 1 00:23:55 CEST 2018
63 - aio_mtouch touch all pages as requested, not just the first page in most cases.
64 - new function: IO::AIO::mremap, linux-specific mremap, with constants MREMAP_MAYMOVE
65 and MREMAP_FIXED.
66 - add O_ACCMODE.
67 - add (undocumented) MSG_CMSG_CLOEXEC and SOCK_CLOEXEC constants.
68
694.4 Tue Feb 20 07:54:12 CET 2018
70 - new aio_slurp request.
71 - add (experimental) IO::AIO::eventfd and timerfd* function.
72 - add (experimental) IO::AIO::get_fdlimit and IO::AIO::min_fdlimit.
73 - point out that aio_copy overwrites existing files.
74 - removed filesystem magic number table from aio_statvfs docs as
75 statvfs doesn't actually return this info at all (statfs does).
76 - add a bunch of (mostly linux-specific) constants for use in ioctls
77 (see aio_ioctl docs).
78 - treescan now has a proper manpage and useful --help output.
79 - new option --sync in treescan, to sync everything in a subtree.
80 - changed default for aio_msync flags to MSYNC_SYNC.
81 - document offset/length behaviour of mprotect/madvise.
82 - support linux's renameat2 (via aio_rename2).
83 - add aio_rename2, an aio_rename with flags.
84 - add F_DUPPFD_CLOEXEC, F_OFD_[SG]ETLKW? constants.
85 - add FALLOC_FL_INSERT_RANGE, FALLOC_FL_UNSHARE_RANGE.
86 - (libeio) use posix_close if available.
87 - (libeio) internal close() calls no longer disturb errno.
88 - add IO:AIO::FALLOC_FL_UNSHARE.
89 - update schmorp.h for removal of USE_SOCKETS_AS_HANDLES
90 and better eventfd detection.
91
924.34 Sun May 1 19:18:24 CEST 2016
93 - def0.h was not properly generated during previous release, causing
94 compile errors on various platforms.
95 - major/minor were accidentally switched (reported by Alexander Lishenyuk).
96 - removed duplicate definition of MAP_HUGETLB, that was found due to
97 a bug in Perl::Tidy (testcase by alaska332@gmail.com).
98 - added (untested!) aio_fcntl, aio_ioctl requests.
99 - (libeio) names set via prctl are truncated to 15 chars + nul, not 16,
100 as manpages-dev originally claimed.
101
1024.33 Mon Jan 18 12:50:10 CET 2016
103 - add IO::AIO::pipe2 function.
104 - added support for FALLOC_FL_COLLAPSE_RANGE and FALLOC_FL_ZERO_RANGE
105 constants.
106 - added support for O_TMPFILE and O_PATH constants.
107 - added support for MAP_FIXED, MAP_GROWSDOWN,MAP_32BIT, MAP_HUGETLB, MAP_STACK
108 consdtants, whether they can be sensibly used or not.
109 - use NO_INIT where applicable.
110 - update libecb.
111 - added stability canary support.
112 - updated linux super magic table to 4.3.3.
113
1144.32 Wed Feb 11 20:32:11 CET 2015
115 - replace off_t by STRLEN where appropriate, should not result in
116 user-visible changes.
117 - update ecb.h for C11 compatibility.
118
1194.31 Tue Jun 3 03:29:27 CEST 2014
120 - work around more 5.20 bugs. backwards compatibility my ass.
121
1224.3 Fri Apr 11 06:22:38 CEST 2014
123 - perl5porters broke Async::Interrupt, BDB, EV, IO::AIO, OpenCL
124 without warning by switching the meaning of USE_SOCKETS_AS_HANDLES
125 in 5.18. What's so attractive about giving a shit about backwards
126 compatibility - I will never understand.
127
1284.2 Sat Jan 25 01:13:14 CET 2014
129 - aio_group could corrupt memory because it didn't restore
130 the stack after req_submit.
131 - be more careful on (e.g. permission) errors in bin/treescan.
132 - work around changes in ExtUtils::MakeMaker.
133 - (libeio) implement aio_realpath for win32.
134 - (xthread) work around compile time bugs in ptw32.
135 - added IO::AIO::pipesize.
136 - (libecb) insignificant update.
137
1384.19 Sun Jan 6 12:47:26 CET 2013
139 - avoid endless loop in fiemap with some XFS files.
140 - in aio_rename and aio_rmdir, specialcase the case of [$wd, "."]
141 and call rename/rmdir instead of renameat/unlinkat.
142
1434.18 Thu Oct 11 07:01:26 CEST 2012
144 - fix unintended xthread_create by intentionalising it :)
145
1464.17 Thu Oct 11 05:19:47 CEST 2012
147 - rename aio_fallocate to aio_allocate, to match documentation.
148 - add list of linux fsid values to aio_statvfs docs.
149 - work around a bug in btrfs' FIEMAP ioctl implementation.
150 - work around AIX bug: statvfs.f_fsid is a struct, not unsigned long
151 as per unix spec.
152
1534.16 Tue Aug 14 05:39:03 CEST 2012
154 - aio_statvfs was wromgly marked for wd emulation, causing
155 it to malfunction for paths.
156 - fix a crash in aio_fiemap, when used on ranges without any
157 extents.
158 - work around linux kernel bug (at least in 3.2): kernel might
159 trash fiemap input arguments.
160 - work around linux kernel bug (at least in 3.2): kernel does not
161 set FIEMAP_EXTENT_LAST on last segment.
162 - work around linux kernel bug (at least in 3.2): kernel silently
163 truncates segment count if a file.
164 - make fh argument of IO::AIO::mmap optional, also add mmap/munmap
165 to quick overview.
166 - splice can corrupt data.
167 - (libeio) remove pread/pwrite emulation.
168 - do not grow mmaped scalars in aio_read.
169 - add FALLOC_FL_PUNCH_HOLE and document fallocate.
170 - provide pread/pwrite for win32, making it link again on native win32.
171
1724.15 Tue Apr 10 06:59:00 CEST 2012
173 - always include linux/types.h for fiemap, for compatibility to
174 ancient systems (Paul Howarth).
175 - experimental support for IO::AIO::splice and ::tee (no aio_...).
176 - provide SEEK_HOLE and SEEK_DATA, if available.
177 - work around (again!) an immensely stupid bug in RHEL, defining
178 autoconf macros in linux system headers (analysed by Paul Howarth).
179
1804.14 Sat Apr 7 02:45:18 CEST 2012
181 - fix stat structure usage on windows, which caused bogus stat results.
182 - (libeio) make readahead emulation behave more like actual readahead by never failing.
183 - new request aio_seek.
184 - new request aio_fiemap.
185 - autogenerate the #ifdef/#define 0 blocks for symbols we export.
186
1874.12 Fri Dec 30 08:51:25 CET 2011
188 - realpath would return a random value if the name was too long,
189 instead of -1.
190 - port to c89.
191
1924.11 Mon Oct 10 00:24:11 CEST 2011
193 - libeio didn't compile on !linux (Paul Howarth).
194
1954.1 Sun Oct 9 10:24:11 CEST 2011
196 - IO::AIO did access uninitialised memory on unsuccessful stats.
197 - (libeio) added syncfs syscall wrapper.
198 - (libeio) set thread name on linux (ps -L/Hcx, top, gdb).
199 - (libeio) support multiple indepenent working directories.
200 - applied speling corrections by Nicholas Bamber.
201 - tune treescan #threads and #outstanding requests a bit.
202 - reduce the number of file descriptors in use at any one time
203 in treescan, to avoid running out of them (and using too much ram).
204 - take advantage of working directoriy abstractions
205 in aio_scandir and treescan.
206 - reduce compiled size by ~10% by not inlining some key functionality.
207 - added --progress switch to treescan.
208
2094.0 Mon Jul 18 05:01:10 CEST 2011
210 - INCOMPATIBLE CHANGE: fork is no longer supported (indeed, it never was),
211 see FORK BEHAVIOUR in manpage for details.
212 - passes testsuite on win32 now and may actually work
213 (activestate 5.10.1 / MSVC6, YMMV).
214 - (libeio) fix a deadlock where a wakeup signal could be missed when
215 a timeout occured at the same time.
216 - (libeio) added realpath.
217 - (libeio) added fallocate.
218 - (libeio) disabling sendfile on darwin unfortunately broke the emulation.
219 - (libeio) do not acquire any locks when forking.
220 - (libeio) use fewer time() syscalls when waiting for new requests.
221
2223.93 Wed Jun 29 23:44:18 CEST 2011
223 - ECB.H WAS MISSING.
224
2253.92 Wed Jun 29 14:45:41 CEST 2011
226 - ecb.h was missing.
227
2283.91 Wed Jun 29 13:24:42 CEST 2011
229 - (libeio) work around a Linux (and likely FreeBSD and other
230 kernels) bug where sendfile would not transfer all the requested
231 bytes on large transfers, using a heuristic.
232 - buggy sendfile caused aio_move/copy to sometimes fail for big
233 files (fortunately it checks that the whole file has been
234 transferred...)
235 - use libecb for higher performance and higher portability.
236 - (libeio) disable sendfile on darwin, it's too broken.
237 - disable fork tests on !linux, as only linux supports mixing
238 pthread and fork in perl.
239 - document the fact that fork doesn't work anymore when using
240 this module, on anything !GNU/Linux.
241 - increase timeout in t/04_fork.t, as too many CPAN-tester setups
242 run on a 0.1MHz cpu. Or so.
243
2443.9 Fri May 27 02:43:47 CEST 2011
245 - (libeio) fix memory corruption in aio_readdirx for the flags
246 combination READDIR_STAT_ORDER | READDIR_DIRS_FIRST.
247 - add lots of newer POSIX and GNU/Linux-specific open
248 flags.
249
2503.8 Sun Mar 27 12:25:33 CEST 2011
251 - use nonstandard but maybe-working-on-bsd fork technique.
252 - support a max_idle value of 0.
253 - support setting of idle timeout value (IO::AIO::idle_timeout).
254
2553.72 Fri Feb 11 04:25:38 CET 2011
256 - use _POSIX_MEMLOCK_RANGE to detect mlock/munlock.
257 - aio_mknod always used a dev_t value of 0.
258 - new treescan option: --grep.
259 - add more S_IF macros, and major/minor/makedev "macros".
260
2613.71 Thu Dec 30 08:18:46 CET 2010
262 - the numerical result value passed to callbacks did not stringify
263 correctly, due to internal reuse and failure to reset the sv flags.
264 - actually test for posix_[mf]advise, as at least uClibc defines
265 _POSIX_ADVISORY_INFO without actually having any of the required
266 funcitonality. ugh.
267
2683.7 Mon Nov 1 23:00:34 CET 2010
269 - implement/add madvise, mmap, munmap, aio_mlockall, munlockall,
270 aio_mlock, munlock, msync and mtouch to @EXPORT_OK.
271 - document the sad state of affairs w.r.t. pthread on many bsds.
272 - do not enable mmap on systems without _POSIX_MAPPED_FILES
273 (openbsd 4.8).
274 - do not leak memory in IO::AIO::mmap when the scalar already
275 had string-data.
276 - add O_RDWR, O_APPEND and O_EXCL symbols and semi-document
277 them.
278 - cache the result IV, for a minor speedup in the common case.
279 - croak when an mmapped-scalar changes location, to detect
280 user-errors better.
281 - fix aio_readlink prototype.
282
2833.65 Wed Mar 31 02:45:05 CEST 2010
284 - actually use PATH_MAX instead of NAME_MAX for readlink, as to not
285 cut off long pathnames in aio_readlink (based on patch by
286 Rasmus Andersson).
287 - a double fork partially killed the event pipe (great testcase
288 by dormando). affects IO::AIO, BDB and Async::Interrupt.
289 - suck steve's dick and rename our symbols to avoid colliding
290 with nonstandard identifier spam on the broken os x pseudo-os.
291 affects IO::AIO and BDB.
292
2933.6 Mon Jan 11 00:43:39 CET 2010
294 - (libeio) more fixes for the freebsd/apple sendfile - broken by
295 manpage standards, but apparently correct accoridng to actual
296 kernel sources.
297 - add IO::AIO::mmap/munmap support.
298 - add IO::AIO::m(un)lockall support.
299 - clean up manpage.
300
3013.5 Thu Jan 7 21:25:04 CET 2010
302 - (liebio) fix freebsd sendfile (Vanilla Hsu).
303 - (libeio) also fix darwin sendfile that suffered from a similar bug.
304 - add aio_statvfs as interface to statvfs/fstatvfs.
305 - work around buggy symlink() on cygwin in the testsuite.
306 - wtf. freebsd-8.0 actually passes the testsuite! I knew
307 they could implement fork and semaphores one day! cheers!
308
3093.4 Sat Jan 2 15:13:04 CET 2010
310 - (libeio) max_poll_time was not properly converted to ticks.
311 - clarify cancel_subs description.
312 - IO::AIO::sendfile did not actually return the return value
313 from the sendfile call.
314 - implement aio_msync, aio_mtouch.
315 - (libeio) tentatively support darwin in sendfile.
316
3173.31 Thu Nov 12 02:14:29 CET 2009
318 - fix result status documentation of aio_copy, aio_move.
319 - speed up object creation considerably by avoiding
320 hash lookups.
321
3223.3 Wed Aug 5 13:52:58 CEST 2009
323 - use common::sense.
324 - use common schmorp.h header.
325 - allow integers (file descriptors) in addition to file handles.
326 - take advantage of linux' eventfd (but it seems slower on smp?).
327 - use poll not select on posix platforms.
328
3293.261 Wed Jul 1 10:11:51 CEST 2009
330 - more 0S X workarounds (patch by Tokuhiro Matsuno).
331
3323.26 Tue Jun 30 09:33:26 CEST 2009
333 - 0S X of course claims to be posix 2008 but lacks posix_fadvise.
334 try to work around this horribly broken OS in a somewhat hackish
335 way. might help other os's too.
336
3373.25 Sat Jun 27 05:18:26 CEST 2009
338 - added IO::AIO::fadvise and IO::AIO::sendfile.
339 - (libeio) replaced quicksort+insertion sort by a tuned radix
340 sort + insertion sort, resulting in comparable runtime (usually
341 faster) to the old version, but without any ill side effects on
342 degenerated (for quicksort) data.
343 - (libeio) correctly sort dirs by inodes if we have perfect type
344 knowledge and DIRS_FIRST is used.
345 - (libeio) internally the wrong DT_* constants were used, but no
346 known system has differing EIO_DT_*/DT_* values, so not an issue.
347 - removed a (harmless) assert that was left over on the code
348 but should not have been.
349 - use more correct types (change IO length from IV to VAL64,
350 which makes a difference on systems without 64 bit perls).
351
3523.23 Sat Jun 13 16:57:58 CEST 2009
353 - fix off-by-one bug in aio_readdir that was introduced in the
354 rushed 3.22 release.
355
3563.22 Sat Jun 13 15:32:40 CEST 2009
357 - speed up readdirx sort algorithm slightly.
358 - bin/treescan was missing from distro tarball.
359
3603.21 Fri Jun 12 18:45:53 CEST 2009
9 - new options --dirs and --files for treescan. 361 - new options --dirs and --files for treescan.
10 - install bin/treescan by default. 362 - install bin/treescan by default.
363 - (libeio) aio_readdir can now be cancelled while executing.
364 - fix a printf format string for 64 bit systems (could lead
365 to problems on big endian 64 bit systems).
366 - do not use qsort() but our own algorithm: glibc initialises
367 the whole locale and I/O subsystem inside qsort, causing
368 a stack overflow on 32 bit machines. The new sort uses much less
369 stack and is more than twice as fast in typical situations.
11 370
123.2 Sun Jun 7 20:30:05 CEST 2009 3713.2 Sun Jun 7 20:30:05 CEST 2009
13 - (libeio) pwrite emulation was even more flawed than intended and did 372 - (libeio) pwrite emulation was even more flawed than intended and did
14 not restore the file offset. 373 not restore the file offset.
15 - add aio_readdirx, which can return inode and filetype and sort 374 - add aio_readdirx, which can return inode and filetype and sort

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