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Comparing IO-AIO/Changes (file contents):
Revision 1.202 by root, Tue Jul 14 00:13:36 2009 UTC vs.
Revision 1.372 by root, Sun Aug 26 03:17:35 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.?
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
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
424.6 Sat Aug 25 21:58:36 CEST 2018
43 - add st_btime, st_btimesec, st_btimensec and st_gen accessors,
44 mostly for bsds which expose birthtime and st_gen members (netbsd, freebsd
45 but only st_gen on openbsd because they compiled their perl without support
46 for birthtimes).
47 - fix madvise and munlock to properly support negative offsets.
48 - allocate fd for the aio_close at boot time, to guarantee it working
49 later, rather than calling abort when it fails. also avoids
50 close-on-exec race issues after module load.
51 - #undef utime on win32, maybe this helps some reports of utime hangs.
52 - minor doc improvements.
53 - minor configure cleanups.
54 - use $Config{perllibs} instead of libs for configure. might help people
55 who didn'T install all perl dependencies (might break things as well).
56
574.54 Tue Aug 14 13:54:48 CEST 2018
58 - include sys/mkdev.h or sys/sysmacros.h if available.
59 - further tweaks to configure invocation for systems requiring --rpath.
60 - no longer rely on custom paths on win32 platforms.
61 - try to work around buggy PAGESIZE macro on solaris.
62
634.53 Tue Aug 14 11:27:50 CEST 2018
64 - add $Config{libs} to LIBS for configure, to work around systems
65 with broken library dependencies (... openbsd).
66
674.52 Sun Aug 12 08:09:45 CEST 2018
68 - config.h.in was missing in distribution.
69
704.51 Sun Aug 12 07:24:14 CEST 2018
71 - complete rework of the autoconf framework: IO::AIO now uses its own
72 config.h, separate from libeio, and tries to test the actual perl
73 environment, not the standard system environment.
74 - provide nanosecond-accracy stat time accessors for both perl and IO::AIO
75 stat functions.
76 - removed non-portable C++ syntax from eio.c.
77 - try to fix readdir tests on cygwin spuriously failing.
78
794.5 Wed Aug 1 00:23:55 CEST 2018
80 - aio_mtouch touch all pages as requested, not just the first page in most cases.
81 - new function: IO::AIO::mremap, linux-specific mremap, with constants MREMAP_MAYMOVE
82 and MREMAP_FIXED.
83 - add O_ACCMODE.
84 - add (undocumented) MSG_CMSG_CLOEXEC and SOCK_CLOEXEC constants.
85
864.4 Tue Feb 20 07:54:12 CET 2018
87 - new aio_slurp request.
88 - add (experimental) IO::AIO::eventfd and timerfd* function.
89 - add (experimental) IO::AIO::get_fdlimit and IO::AIO::min_fdlimit.
90 - point out that aio_copy overwrites existing files.
91 - removed filesystem magic number table from aio_statvfs docs as
92 statvfs doesn't actually return this info at all (statfs does).
93 - add a bunch of (mostly linux-specific) constants for use in ioctls
94 (see aio_ioctl docs).
95 - treescan now has a proper manpage and useful --help output.
96 - new option --sync in treescan, to sync everything in a subtree.
97 - changed default for aio_msync flags to MSYNC_SYNC.
98 - document offset/length behaviour of mprotect/madvise.
99 - support linux's renameat2 (via aio_rename2).
100 - add aio_rename2, an aio_rename with flags.
101 - add F_DUPPFD_CLOEXEC, F_OFD_[SG]ETLKW? constants.
102 - add FALLOC_FL_INSERT_RANGE, FALLOC_FL_UNSHARE_RANGE.
103 - (libeio) use posix_close if available.
104 - (libeio) internal close() calls no longer disturb errno.
105 - add IO:AIO::FALLOC_FL_UNSHARE.
106 - update schmorp.h for removal of USE_SOCKETS_AS_HANDLES
107 and better eventfd detection.
108
1094.34 Sun May 1 19:18:24 CEST 2016
110 - def0.h was not properly generated during previous release, causing
111 compile errors on various platforms.
112 - major/minor were accidentally switched (reported by Alexander Lishenyuk).
113 - removed duplicate definition of MAP_HUGETLB, that was found due to
114 a bug in Perl::Tidy (testcase by alaska332@gmail.com).
115 - added (untested!) aio_fcntl, aio_ioctl requests.
116 - (libeio) names set via prctl are truncated to 15 chars + nul, not 16,
117 as manpages-dev originally claimed.
118
1194.33 Mon Jan 18 12:50:10 CET 2016
120 - add IO::AIO::pipe2 function.
121 - added support for FALLOC_FL_COLLAPSE_RANGE and FALLOC_FL_ZERO_RANGE
122 constants.
123 - added support for O_TMPFILE and O_PATH constants.
124 - added support for MAP_FIXED, MAP_GROWSDOWN,MAP_32BIT, MAP_HUGETLB, MAP_STACK
125 consdtants, whether they can be sensibly used or not.
126 - use NO_INIT where applicable.
127 - update libecb.
128 - added stability canary support.
129 - updated linux super magic table to 4.3.3.
130
1314.32 Wed Feb 11 20:32:11 CET 2015
132 - replace off_t by STRLEN where appropriate, should not result in
133 user-visible changes.
134 - update ecb.h for C11 compatibility.
135
1364.31 Tue Jun 3 03:29:27 CEST 2014
137 - work around more 5.20 bugs. backwards compatibility my ass.
138
1394.3 Fri Apr 11 06:22:38 CEST 2014
140 - perl5porters broke Async::Interrupt, BDB, EV, IO::AIO, OpenCL
141 without warning by switching the meaning of USE_SOCKETS_AS_HANDLES
142 in 5.18. What's so attractive about giving a shit about backwards
143 compatibility - I will never understand.
144
1454.2 Sat Jan 25 01:13:14 CET 2014
146 - aio_group could corrupt memory because it didn't restore
147 the stack after req_submit.
148 - be more careful on (e.g. permission) errors in bin/treescan.
149 - work around changes in ExtUtils::MakeMaker.
150 - (libeio) implement aio_realpath for win32.
151 - (xthread) work around compile time bugs in ptw32.
152 - added IO::AIO::pipesize.
153 - (libecb) insignificant update.
154
1554.19 Sun Jan 6 12:47:26 CET 2013
156 - avoid endless loop in fiemap with some XFS files.
157 - in aio_rename and aio_rmdir, specialcase the case of [$wd, "."]
158 and call rename/rmdir instead of renameat/unlinkat.
159
1604.18 Thu Oct 11 07:01:26 CEST 2012
161 - fix unintended xthread_create by intentionalising it :)
162
1634.17 Thu Oct 11 05:19:47 CEST 2012
164 - rename aio_fallocate to aio_allocate, to match documentation.
165 - add list of linux fsid values to aio_statvfs docs.
166 - work around a bug in btrfs' FIEMAP ioctl implementation.
167 - work around AIX bug: statvfs.f_fsid is a struct, not unsigned long
168 as per unix spec.
169
1704.16 Tue Aug 14 05:39:03 CEST 2012
171 - aio_statvfs was wromgly marked for wd emulation, causing
172 it to malfunction for paths.
173 - fix a crash in aio_fiemap, when used on ranges without any
174 extents.
175 - work around linux kernel bug (at least in 3.2): kernel might
176 trash fiemap input arguments.
177 - work around linux kernel bug (at least in 3.2): kernel does not
178 set FIEMAP_EXTENT_LAST on last segment.
179 - work around linux kernel bug (at least in 3.2): kernel silently
180 truncates segment count if a file.
181 - make fh argument of IO::AIO::mmap optional, also add mmap/munmap
182 to quick overview.
183 - splice can corrupt data.
184 - (libeio) remove pread/pwrite emulation.
185 - do not grow mmaped scalars in aio_read.
186 - add FALLOC_FL_PUNCH_HOLE and document fallocate.
187 - provide pread/pwrite for win32, making it link again on native win32.
188
1894.15 Tue Apr 10 06:59:00 CEST 2012
190 - always include linux/types.h for fiemap, for compatibility to
191 ancient systems (Paul Howarth).
192 - experimental support for IO::AIO::splice and ::tee (no aio_...).
193 - provide SEEK_HOLE and SEEK_DATA, if available.
194 - work around (again!) an immensely stupid bug in RHEL, defining
195 autoconf macros in linux system headers (analysed by Paul Howarth).
196
1974.14 Sat Apr 7 02:45:18 CEST 2012
198 - fix stat structure usage on windows, which caused bogus stat results.
199 - (libeio) make readahead emulation behave more like actual readahead by never failing.
200 - new request aio_seek.
201 - new request aio_fiemap.
202 - autogenerate the #ifdef/#define 0 blocks for symbols we export.
203
2044.12 Fri Dec 30 08:51:25 CET 2011
205 - realpath would return a random value if the name was too long,
206 instead of -1.
207 - port to c89.
208
2094.11 Mon Oct 10 00:24:11 CEST 2011
210 - libeio didn't compile on !linux (Paul Howarth).
211
2124.1 Sun Oct 9 10:24:11 CEST 2011
213 - IO::AIO did access uninitialised memory on unsuccessful stats.
214 - (libeio) added syncfs syscall wrapper.
215 - (libeio) set thread name on linux (ps -L/Hcx, top, gdb).
216 - (libeio) support multiple indepenent working directories.
217 - applied speling corrections by Nicholas Bamber.
218 - tune treescan #threads and #outstanding requests a bit.
219 - reduce the number of file descriptors in use at any one time
220 in treescan, to avoid running out of them (and using too much ram).
221 - take advantage of working directoriy abstractions
222 in aio_scandir and treescan.
223 - reduce compiled size by ~10% by not inlining some key functionality.
224 - added --progress switch to treescan.
225
2264.0 Mon Jul 18 05:01:10 CEST 2011
227 - INCOMPATIBLE CHANGE: fork is no longer supported (indeed, it never was),
228 see FORK BEHAVIOUR in manpage for details.
229 - passes testsuite on win32 now and may actually work
230 (activestate 5.10.1 / MSVC6, YMMV).
231 - (libeio) fix a deadlock where a wakeup signal could be missed when
232 a timeout occured at the same time.
233 - (libeio) added realpath.
234 - (libeio) added fallocate.
235 - (libeio) disabling sendfile on darwin unfortunately broke the emulation.
236 - (libeio) do not acquire any locks when forking.
237 - (libeio) use fewer time() syscalls when waiting for new requests.
238
2393.93 Wed Jun 29 23:44:18 CEST 2011
240 - ECB.H WAS MISSING.
241
2423.92 Wed Jun 29 14:45:41 CEST 2011
243 - ecb.h was missing.
244
2453.91 Wed Jun 29 13:24:42 CEST 2011
246 - (libeio) work around a Linux (and likely FreeBSD and other
247 kernels) bug where sendfile would not transfer all the requested
248 bytes on large transfers, using a heuristic.
249 - buggy sendfile caused aio_move/copy to sometimes fail for big
250 files (fortunately it checks that the whole file has been
251 transferred...)
252 - use libecb for higher performance and higher portability.
253 - (libeio) disable sendfile on darwin, it's too broken.
254 - disable fork tests on !linux, as only linux supports mixing
255 pthread and fork in perl.
256 - document the fact that fork doesn't work anymore when using
257 this module, on anything !GNU/Linux.
258 - increase timeout in t/04_fork.t, as too many CPAN-tester setups
259 run on a 0.1MHz cpu. Or so.
260
2613.9 Fri May 27 02:43:47 CEST 2011
262 - (libeio) fix memory corruption in aio_readdirx for the flags
263 combination READDIR_STAT_ORDER | READDIR_DIRS_FIRST.
264 - add lots of newer POSIX and GNU/Linux-specific open
265 flags.
266
2673.8 Sun Mar 27 12:25:33 CEST 2011
268 - use nonstandard but maybe-working-on-bsd fork technique.
269 - support a max_idle value of 0.
270 - support setting of idle timeout value (IO::AIO::idle_timeout).
271
2723.72 Fri Feb 11 04:25:38 CET 2011
273 - use _POSIX_MEMLOCK_RANGE to detect mlock/munlock.
274 - aio_mknod always used a dev_t value of 0.
275 - new treescan option: --grep.
276 - add more S_IF macros, and major/minor/makedev "macros".
277
2783.71 Thu Dec 30 08:18:46 CET 2010
279 - the numerical result value passed to callbacks did not stringify
280 correctly, due to internal reuse and failure to reset the sv flags.
281 - actually test for posix_[mf]advise, as at least uClibc defines
282 _POSIX_ADVISORY_INFO without actually having any of the required
283 funcitonality. ugh.
284
2853.7 Mon Nov 1 23:00:34 CET 2010
286 - implement/add madvise, mmap, munmap, aio_mlockall, munlockall,
287 aio_mlock, munlock, msync and mtouch to @EXPORT_OK.
288 - document the sad state of affairs w.r.t. pthread on many bsds.
289 - do not enable mmap on systems without _POSIX_MAPPED_FILES
290 (openbsd 4.8).
291 - do not leak memory in IO::AIO::mmap when the scalar already
292 had string-data.
293 - add O_RDWR, O_APPEND and O_EXCL symbols and semi-document
294 them.
295 - cache the result IV, for a minor speedup in the common case.
296 - croak when an mmapped-scalar changes location, to detect
297 user-errors better.
298 - fix aio_readlink prototype.
299
3003.65 Wed Mar 31 02:45:05 CEST 2010
301 - actually use PATH_MAX instead of NAME_MAX for readlink, as to not
302 cut off long pathnames in aio_readlink (based on patch by
303 Rasmus Andersson).
304 - a double fork partially killed the event pipe (great testcase
305 by dormando). affects IO::AIO, BDB and Async::Interrupt.
306 - suck steve's dick and rename our symbols to avoid colliding
307 with nonstandard identifier spam on the broken os x pseudo-os.
308 affects IO::AIO and BDB.
309
3103.6 Mon Jan 11 00:43:39 CET 2010
311 - (libeio) more fixes for the freebsd/apple sendfile - broken by
312 manpage standards, but apparently correct accoridng to actual
313 kernel sources.
314 - add IO::AIO::mmap/munmap support.
315 - add IO::AIO::m(un)lockall support.
316 - clean up manpage.
317
3183.5 Thu Jan 7 21:25:04 CET 2010
319 - (liebio) fix freebsd sendfile (Vanilla Hsu).
320 - (libeio) also fix darwin sendfile that suffered from a similar bug.
321 - add aio_statvfs as interface to statvfs/fstatvfs.
322 - work around buggy symlink() on cygwin in the testsuite.
323 - wtf. freebsd-8.0 actually passes the testsuite! I knew
324 they could implement fork and semaphores one day! cheers!
325
3263.4 Sat Jan 2 15:13:04 CET 2010
327 - (libeio) max_poll_time was not properly converted to ticks.
328 - clarify cancel_subs description.
329 - IO::AIO::sendfile did not actually return the return value
330 from the sendfile call.
331 - implement aio_msync, aio_mtouch.
332 - (libeio) tentatively support darwin in sendfile.
333
3343.31 Thu Nov 12 02:14:29 CET 2009
335 - fix result status documentation of aio_copy, aio_move.
336 - speed up object creation considerably by avoiding
337 hash lookups.
338
3393.3 Wed Aug 5 13:52:58 CEST 2009
10 - use common::sense. 340 - use common::sense.
11 - use common schmorp.h header. 341 - use common schmorp.h header.
12 - allow integers (file descriptors) in addition to file handles. 342 - allow integers (file descriptors) in addition to file handles.
343 - take advantage of linux' eventfd (but it seems slower on smp?).
344 - use poll not select on posix platforms.
13 345
143.261 Wed Jul 1 10:11:51 CEST 2009 3463.261 Wed Jul 1 10:11:51 CEST 2009
15 - more OS X workarounds (patch by Tokuhiro Matsuno). 347 - more 0S X workarounds (patch by Tokuhiro Matsuno).
16 348
173.26 Tue Jun 30 09:33:26 CEST 2009 3493.26 Tue Jun 30 09:33:26 CEST 2009
18 - os x of course claims posix 2008 but lacks posix_fadvise. try to work 350 - 0S X of course claims to be posix 2008 but lacks posix_fadvise.
19 around this horribly broken OS in a somewhat hackish way. might help 351 try to work around this horribly broken OS in a somewhat hackish
20 other os's too. 352 way. might help other os's too.
21 353
223.25 Sat Jun 27 05:18:26 CEST 2009 3543.25 Sat Jun 27 05:18:26 CEST 2009
23 - added IO::AIO::fadvise and IO::AIO::sendfile. 355 - added IO::AIO::fadvise and IO::AIO::sendfile.
24 - (libeio) replaced quicksort+insertion sort by a tuned radix 356 - (libeio) replaced quicksort+insertion sort by a tuned radix
25 sort + insertion sort, resulting in comparable runtime (usually 357 sort + insertion sort, resulting in comparable runtime (usually

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