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Comparing IO-AIO/Changes (file contents):
Revision 1.197 by root, Wed Jun 17 06:33:07 2009 UTC vs.
Revision 1.380 by root, Sun Mar 10 12:16:48 2019 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?
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
9 23
103.25 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: copy_file_range, copy_file_range
29TODO: FIDEDUPERANGE, file_ioctl.c
30TODO: mincore
31TODO: SOCK_CLOEXEc etc.
32TODO: unlinkat flags, linkat flags, statat, renameat2 flags
33TODO: https://kernelnewbies.org/Linux_4.11
34TODO: define useful rules for [[$wd, $path], $path] &c and implement them
35TODO: https://github.com/coreutils/coreutils/blob/master/src/stat.c maybe IO::AIO::FSID
36TODO: mlock2, MLOCK_ONFAULT
37TODO: dup3, pipe2, accept4
38TODO: dump config.log when automated testign and configure fails
39TODO: ns time resolution in utime
40
41 - correctly include <sys/uio.h> in the vmsplice test.
42
434.71 Sun Mar 10 13:09:26 CET 2019
44 - due to an error in the linux manpages, the configure tests
45 for readahead, sync_file_range, splice etc. failed. This has been fixed.
46
474.7 Mon Mar 4 11:28:13 CET 2019
48 - majorly speed up scandir for the very special case of a non-POSIX
49 filesystem that nevertheless reports valid dt_type information.
50 The only known filesystem of this type is currently btrfs, which
51 didn't get it's act together to implement POSIX semantics in all
52 these years, and I am tired of waiting.
53 - add IO::AIO::MCL_ONFAULT for mlockall, add IO::AIO::mlockall.
54 - neither sys/mkdev.h nor sys/sysmacros.h were included, even when they
55 were detected by autoconf.
56
574.6 Sat Aug 25 21:58:36 CEST 2018
58 - add st_btime, st_btimesec, st_btimensec and st_gen accessors,
59 mostly for bsds which expose birthtime and st_gen members (netbsd, freebsd
60 but only st_gen on openbsd because they compiled their perl without support
61 for birthtimes).
62 - fix madvise and munlock to properly support negative offsets.
63 - allocate fd for the aio_close at boot time, to guarantee it working
64 later, rather than calling abort when it fails. also avoids
65 close-on-exec race issues after module load.
66 - #undef utime on win32, maybe this helps some reports of utime hangs.
67 - minor doc improvements.
68 - minor configure cleanups.
69 - use $Config{perllibs} instead of libs for configure. might help people
70 who didn't install all perl dependencies (might break things as well).
71
724.54 Tue Aug 14 13:54:48 CEST 2018
73 - include sys/mkdev.h or sys/sysmacros.h if available.
74 - further tweaks to configure invocation for systems requiring --rpath.
75 - no longer rely on custom paths on win32 platforms.
76 - try to work around buggy PAGESIZE macro on solaris.
77
784.53 Tue Aug 14 11:27:50 CEST 2018
79 - add $Config{libs} to LIBS for configure, to work around systems
80 with broken library dependencies (... openbsd).
81
824.52 Sun Aug 12 08:09:45 CEST 2018
83 - config.h.in was missing in distribution.
84
854.51 Sun Aug 12 07:24:14 CEST 2018
86 - complete rework of the autoconf framework: IO::AIO now uses its own
87 config.h, separate from libeio, and tries to test the actual perl
88 environment, not the standard system environment.
89 - provide nanosecond-accracy stat time accessors for both perl and IO::AIO
90 stat functions.
91 - removed non-portable C++ syntax from eio.c.
92 - try to fix readdir tests on cygwin spuriously failing.
93
944.5 Wed Aug 1 00:23:55 CEST 2018
95 - aio_mtouch touch all pages as requested, not just the first page in most cases.
96 - new function: IO::AIO::mremap, linux-specific mremap, with constants MREMAP_MAYMOVE
97 and MREMAP_FIXED.
98 - add O_ACCMODE.
99 - add (undocumented) MSG_CMSG_CLOEXEC and SOCK_CLOEXEC constants.
100
1014.4 Tue Feb 20 07:54:12 CET 2018
102 - new aio_slurp request.
103 - add (experimental) IO::AIO::eventfd and timerfd* function.
104 - add (experimental) IO::AIO::get_fdlimit and IO::AIO::min_fdlimit.
105 - point out that aio_copy overwrites existing files.
106 - removed filesystem magic number table from aio_statvfs docs as
107 statvfs doesn't actually return this info at all (statfs does).
108 - add a bunch of (mostly linux-specific) constants for use in ioctls
109 (see aio_ioctl docs).
110 - treescan now has a proper manpage and useful --help output.
111 - new option --sync in treescan, to sync everything in a subtree.
112 - changed default for aio_msync flags to MSYNC_SYNC.
113 - document offset/length behaviour of mprotect/madvise.
114 - support linux's renameat2 (via aio_rename2).
115 - add aio_rename2, an aio_rename with flags.
116 - add F_DUPPFD_CLOEXEC, F_OFD_[SG]ETLKW? constants.
117 - add FALLOC_FL_INSERT_RANGE, FALLOC_FL_UNSHARE_RANGE.
118 - (libeio) use posix_close if available.
119 - (libeio) internal close() calls no longer disturb errno.
120 - add IO:AIO::FALLOC_FL_UNSHARE.
121 - update schmorp.h for removal of USE_SOCKETS_AS_HANDLES
122 and better eventfd detection.
123
1244.34 Sun May 1 19:18:24 CEST 2016
125 - def0.h was not properly generated during previous release, causing
126 compile errors on various platforms.
127 - major/minor were accidentally switched (reported by Alexander Lishenyuk).
128 - removed duplicate definition of MAP_HUGETLB, that was found due to
129 a bug in Perl::Tidy (testcase by alaska332@gmail.com).
130 - added (untested!) aio_fcntl, aio_ioctl requests.
131 - (libeio) names set via prctl are truncated to 15 chars + nul, not 16,
132 as manpages-dev originally claimed.
133
1344.33 Mon Jan 18 12:50:10 CET 2016
135 - add IO::AIO::pipe2 function.
136 - added support for FALLOC_FL_COLLAPSE_RANGE and FALLOC_FL_ZERO_RANGE
137 constants.
138 - added support for O_TMPFILE and O_PATH constants.
139 - added support for MAP_FIXED, MAP_GROWSDOWN,MAP_32BIT, MAP_HUGETLB, MAP_STACK
140 consdtants, whether they can be sensibly used or not.
141 - use NO_INIT where applicable.
142 - update libecb.
143 - added stability canary support.
144 - updated linux super magic table to 4.3.3.
145
1464.32 Wed Feb 11 20:32:11 CET 2015
147 - replace off_t by STRLEN where appropriate, should not result in
148 user-visible changes.
149 - update ecb.h for C11 compatibility.
150
1514.31 Tue Jun 3 03:29:27 CEST 2014
152 - work around more 5.20 bugs. backwards compatibility my ass.
153
1544.3 Fri Apr 11 06:22:38 CEST 2014
155 - perl5porters broke Async::Interrupt, BDB, EV, IO::AIO, OpenCL
156 without warning by switching the meaning of USE_SOCKETS_AS_HANDLES
157 in 5.18. What's so attractive about giving a shit about backwards
158 compatibility - I will never understand.
159
1604.2 Sat Jan 25 01:13:14 CET 2014
161 - aio_group could corrupt memory because it didn't restore
162 the stack after req_submit.
163 - be more careful on (e.g. permission) errors in bin/treescan.
164 - work around changes in ExtUtils::MakeMaker.
165 - (libeio) implement aio_realpath for win32.
166 - (xthread) work around compile time bugs in ptw32.
167 - added IO::AIO::pipesize.
168 - (libecb) insignificant update.
169
1704.19 Sun Jan 6 12:47:26 CET 2013
171 - avoid endless loop in fiemap with some XFS files.
172 - in aio_rename and aio_rmdir, specialcase the case of [$wd, "."]
173 and call rename/rmdir instead of renameat/unlinkat.
174
1754.18 Thu Oct 11 07:01:26 CEST 2012
176 - fix unintended xthread_create by intentionalising it :)
177
1784.17 Thu Oct 11 05:19:47 CEST 2012
179 - rename aio_fallocate to aio_allocate, to match documentation.
180 - add list of linux fsid values to aio_statvfs docs.
181 - work around a bug in btrfs' FIEMAP ioctl implementation.
182 - work around AIX bug: statvfs.f_fsid is a struct, not unsigned long
183 as per unix spec.
184
1854.16 Tue Aug 14 05:39:03 CEST 2012
186 - aio_statvfs was wromgly marked for wd emulation, causing
187 it to malfunction for paths.
188 - fix a crash in aio_fiemap, when used on ranges without any
189 extents.
190 - work around linux kernel bug (at least in 3.2): kernel might
191 trash fiemap input arguments.
192 - work around linux kernel bug (at least in 3.2): kernel does not
193 set FIEMAP_EXTENT_LAST on last segment.
194 - work around linux kernel bug (at least in 3.2): kernel silently
195 truncates segment count if a file.
196 - make fh argument of IO::AIO::mmap optional, also add mmap/munmap
197 to quick overview.
198 - splice can corrupt data.
199 - (libeio) remove pread/pwrite emulation.
200 - do not grow mmaped scalars in aio_read.
201 - add FALLOC_FL_PUNCH_HOLE and document fallocate.
202 - provide pread/pwrite for win32, making it link again on native win32.
203
2044.15 Tue Apr 10 06:59:00 CEST 2012
205 - always include linux/types.h for fiemap, for compatibility to
206 ancient systems (Paul Howarth).
207 - experimental support for IO::AIO::splice and ::tee (no aio_...).
208 - provide SEEK_HOLE and SEEK_DATA, if available.
209 - work around (again!) an immensely stupid bug in RHEL, defining
210 autoconf macros in linux system headers (analysed by Paul Howarth).
211
2124.14 Sat Apr 7 02:45:18 CEST 2012
213 - fix stat structure usage on windows, which caused bogus stat results.
214 - (libeio) make readahead emulation behave more like actual readahead by never failing.
215 - new request aio_seek.
216 - new request aio_fiemap.
217 - autogenerate the #ifdef/#define 0 blocks for symbols we export.
218
2194.12 Fri Dec 30 08:51:25 CET 2011
220 - realpath would return a random value if the name was too long,
221 instead of -1.
222 - port to c89.
223
2244.11 Mon Oct 10 00:24:11 CEST 2011
225 - libeio didn't compile on !linux (Paul Howarth).
226
2274.1 Sun Oct 9 10:24:11 CEST 2011
228 - IO::AIO did access uninitialised memory on unsuccessful stats.
229 - (libeio) added syncfs syscall wrapper.
230 - (libeio) set thread name on linux (ps -L/Hcx, top, gdb).
231 - (libeio) support multiple indepenent working directories.
232 - applied speling corrections by Nicholas Bamber.
233 - tune treescan #threads and #outstanding requests a bit.
234 - reduce the number of file descriptors in use at any one time
235 in treescan, to avoid running out of them (and using too much ram).
236 - take advantage of working directoriy abstractions
237 in aio_scandir and treescan.
238 - reduce compiled size by ~10% by not inlining some key functionality.
239 - added --progress switch to treescan.
240
2414.0 Mon Jul 18 05:01:10 CEST 2011
242 - INCOMPATIBLE CHANGE: fork is no longer supported (indeed, it never was),
243 see FORK BEHAVIOUR in manpage for details.
244 - passes testsuite on win32 now and may actually work
245 (activestate 5.10.1 / MSVC6, YMMV).
246 - (libeio) fix a deadlock where a wakeup signal could be missed when
247 a timeout occured at the same time.
248 - (libeio) added realpath.
249 - (libeio) added fallocate.
250 - (libeio) disabling sendfile on darwin unfortunately broke the emulation.
251 - (libeio) do not acquire any locks when forking.
252 - (libeio) use fewer time() syscalls when waiting for new requests.
253
2543.93 Wed Jun 29 23:44:18 CEST 2011
255 - ECB.H WAS MISSING.
256
2573.92 Wed Jun 29 14:45:41 CEST 2011
258 - ecb.h was missing.
259
2603.91 Wed Jun 29 13:24:42 CEST 2011
261 - (libeio) work around a Linux (and likely FreeBSD and other
262 kernels) bug where sendfile would not transfer all the requested
263 bytes on large transfers, using a heuristic.
264 - buggy sendfile caused aio_move/copy to sometimes fail for big
265 files (fortunately it checks that the whole file has been
266 transferred...)
267 - use libecb for higher performance and higher portability.
268 - (libeio) disable sendfile on darwin, it's too broken.
269 - disable fork tests on !linux, as only linux supports mixing
270 pthread and fork in perl.
271 - document the fact that fork doesn't work anymore when using
272 this module, on anything !GNU/Linux.
273 - increase timeout in t/04_fork.t, as too many CPAN-tester setups
274 run on a 0.1MHz cpu. Or so.
275
2763.9 Fri May 27 02:43:47 CEST 2011
277 - (libeio) fix memory corruption in aio_readdirx for the flags
278 combination READDIR_STAT_ORDER | READDIR_DIRS_FIRST.
279 - add lots of newer POSIX and GNU/Linux-specific open
280 flags.
281
2823.8 Sun Mar 27 12:25:33 CEST 2011
283 - use nonstandard but maybe-working-on-bsd fork technique.
284 - support a max_idle value of 0.
285 - support setting of idle timeout value (IO::AIO::idle_timeout).
286
2873.72 Fri Feb 11 04:25:38 CET 2011
288 - use _POSIX_MEMLOCK_RANGE to detect mlock/munlock.
289 - aio_mknod always used a dev_t value of 0.
290 - new treescan option: --grep.
291 - add more S_IF macros, and major/minor/makedev "macros".
292
2933.71 Thu Dec 30 08:18:46 CET 2010
294 - the numerical result value passed to callbacks did not stringify
295 correctly, due to internal reuse and failure to reset the sv flags.
296 - actually test for posix_[mf]advise, as at least uClibc defines
297 _POSIX_ADVISORY_INFO without actually having any of the required
298 funcitonality. ugh.
299
3003.7 Mon Nov 1 23:00:34 CET 2010
301 - implement/add madvise, mmap, munmap, aio_mlockall, munlockall,
302 aio_mlock, munlock, msync and mtouch to @EXPORT_OK.
303 - document the sad state of affairs w.r.t. pthread on many bsds.
304 - do not enable mmap on systems without _POSIX_MAPPED_FILES
305 (openbsd 4.8).
306 - do not leak memory in IO::AIO::mmap when the scalar already
307 had string-data.
308 - add O_RDWR, O_APPEND and O_EXCL symbols and semi-document
309 them.
310 - cache the result IV, for a minor speedup in the common case.
311 - croak when an mmapped-scalar changes location, to detect
312 user-errors better.
313 - fix aio_readlink prototype.
314
3153.65 Wed Mar 31 02:45:05 CEST 2010
316 - actually use PATH_MAX instead of NAME_MAX for readlink, as to not
317 cut off long pathnames in aio_readlink (based on patch by
318 Rasmus Andersson).
319 - a double fork partially killed the event pipe (great testcase
320 by dormando). affects IO::AIO, BDB and Async::Interrupt.
321 - suck steve's dick and rename our symbols to avoid colliding
322 with nonstandard identifier spam on the broken os x pseudo-os.
323 affects IO::AIO and BDB.
324
3253.6 Mon Jan 11 00:43:39 CET 2010
326 - (libeio) more fixes for the freebsd/apple sendfile - broken by
327 manpage standards, but apparently correct accoridng to actual
328 kernel sources.
329 - add IO::AIO::mmap/munmap support.
330 - add IO::AIO::m(un)lockall support.
331 - clean up manpage.
332
3333.5 Thu Jan 7 21:25:04 CET 2010
334 - (liebio) fix freebsd sendfile (Vanilla Hsu).
335 - (libeio) also fix darwin sendfile that suffered from a similar bug.
336 - add aio_statvfs as interface to statvfs/fstatvfs.
337 - work around buggy symlink() on cygwin in the testsuite.
338 - wtf. freebsd-8.0 actually passes the testsuite! I knew
339 they could implement fork and semaphores one day! cheers!
340
3413.4 Sat Jan 2 15:13:04 CET 2010
342 - (libeio) max_poll_time was not properly converted to ticks.
343 - clarify cancel_subs description.
344 - IO::AIO::sendfile did not actually return the return value
345 from the sendfile call.
346 - implement aio_msync, aio_mtouch.
347 - (libeio) tentatively support darwin in sendfile.
348
3493.31 Thu Nov 12 02:14:29 CET 2009
350 - fix result status documentation of aio_copy, aio_move.
351 - speed up object creation considerably by avoiding
352 hash lookups.
353
3543.3 Wed Aug 5 13:52:58 CEST 2009
355 - use common::sense.
356 - use common schmorp.h header.
357 - allow integers (file descriptors) in addition to file handles.
358 - take advantage of linux' eventfd (but it seems slower on smp?).
359 - use poll not select on posix platforms.
360
3613.261 Wed Jul 1 10:11:51 CEST 2009
362 - more 0S X workarounds (patch by Tokuhiro Matsuno).
363
3643.26 Tue Jun 30 09:33:26 CEST 2009
365 - 0S X of course claims to be posix 2008 but lacks posix_fadvise.
366 try to work around this horribly broken OS in a somewhat hackish
367 way. might help other os's too.
368
3693.25 Sat Jun 27 05:18:26 CEST 2009
11 - added IO::AIO::fadvise and IO::AIO::sendfile. 370 - added IO::AIO::fadvise and IO::AIO::sendfile.
12 - (libeio) replaced quicksort+insertion sort by a tuned radix 371 - (libeio) replaced quicksort+insertion sort by a tuned radix
13 sort + insertion sort, resulting in comparable runtime (usually 372 sort + insertion sort, resulting in comparable runtime (usually
14 faster) to the old version, but without any ill side effects on 373 faster) to the old version, but without any ill side effects on
15 degenerated (for quicksort) data. 374 degenerated (for quicksort) data.

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