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Revision 1.194 by root, Sun Jun 14 20:36:59 2009 UTC vs.
Revision 1.379 by root, Sun Mar 10 12:11:46 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.?
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
9 - avoid some degenerate sorting cases on systems without d_ino, 24TODO: rewrite rmtree et al. to support working directories (also speed them up)
10 or when the dentries are mostly sorted by inode already (common 25TODO: maybe IO::AIO leaks fds when requests are cancelled? maybe initialise result to -1?
11 with freshly unpacked tarfiles for example). 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
414.71 Sun Mar 10 13:09:26 CET 2019
42 - due to an error in the linux manpages, the configure tests
43 for readahead, sync_file_range, splice etc. failed. This has been fixed.
44
454.7 Mon Mar 4 11:28:13 CET 2019
46 - majorly speed up scandir for the very special case of a non-POSIX
47 filesystem that nevertheless reports valid dt_type information.
48 The only known filesystem of this type is currently btrfs, which
49 didn't get it's act together to implement POSIX semantics in all
50 these years, and I am tired of waiting.
51 - add IO::AIO::MCL_ONFAULT for mlockall, add IO::AIO::mlockall.
52 - neither sys/mkdev.h nor sys/sysmacros.h were included, even when they
53 were detected by autoconf.
54
554.6 Sat Aug 25 21:58:36 CEST 2018
56 - add st_btime, st_btimesec, st_btimensec and st_gen accessors,
57 mostly for bsds which expose birthtime and st_gen members (netbsd, freebsd
58 but only st_gen on openbsd because they compiled their perl without support
59 for birthtimes).
60 - fix madvise and munlock to properly support negative offsets.
61 - allocate fd for the aio_close at boot time, to guarantee it working
62 later, rather than calling abort when it fails. also avoids
63 close-on-exec race issues after module load.
64 - #undef utime on win32, maybe this helps some reports of utime hangs.
65 - minor doc improvements.
66 - minor configure cleanups.
67 - use $Config{perllibs} instead of libs for configure. might help people
68 who didn't install all perl dependencies (might break things as well).
69
704.54 Tue Aug 14 13:54:48 CEST 2018
71 - include sys/mkdev.h or sys/sysmacros.h if available.
72 - further tweaks to configure invocation for systems requiring --rpath.
73 - no longer rely on custom paths on win32 platforms.
74 - try to work around buggy PAGESIZE macro on solaris.
75
764.53 Tue Aug 14 11:27:50 CEST 2018
77 - add $Config{libs} to LIBS for configure, to work around systems
78 with broken library dependencies (... openbsd).
79
804.52 Sun Aug 12 08:09:45 CEST 2018
81 - config.h.in was missing in distribution.
82
834.51 Sun Aug 12 07:24:14 CEST 2018
84 - complete rework of the autoconf framework: IO::AIO now uses its own
85 config.h, separate from libeio, and tries to test the actual perl
86 environment, not the standard system environment.
87 - provide nanosecond-accracy stat time accessors for both perl and IO::AIO
88 stat functions.
89 - removed non-portable C++ syntax from eio.c.
90 - try to fix readdir tests on cygwin spuriously failing.
91
924.5 Wed Aug 1 00:23:55 CEST 2018
93 - aio_mtouch touch all pages as requested, not just the first page in most cases.
94 - new function: IO::AIO::mremap, linux-specific mremap, with constants MREMAP_MAYMOVE
95 and MREMAP_FIXED.
96 - add O_ACCMODE.
97 - add (undocumented) MSG_CMSG_CLOEXEC and SOCK_CLOEXEC constants.
98
994.4 Tue Feb 20 07:54:12 CET 2018
100 - new aio_slurp request.
101 - add (experimental) IO::AIO::eventfd and timerfd* function.
102 - add (experimental) IO::AIO::get_fdlimit and IO::AIO::min_fdlimit.
103 - point out that aio_copy overwrites existing files.
104 - removed filesystem magic number table from aio_statvfs docs as
105 statvfs doesn't actually return this info at all (statfs does).
106 - add a bunch of (mostly linux-specific) constants for use in ioctls
107 (see aio_ioctl docs).
108 - treescan now has a proper manpage and useful --help output.
109 - new option --sync in treescan, to sync everything in a subtree.
110 - changed default for aio_msync flags to MSYNC_SYNC.
111 - document offset/length behaviour of mprotect/madvise.
112 - support linux's renameat2 (via aio_rename2).
113 - add aio_rename2, an aio_rename with flags.
114 - add F_DUPPFD_CLOEXEC, F_OFD_[SG]ETLKW? constants.
115 - add FALLOC_FL_INSERT_RANGE, FALLOC_FL_UNSHARE_RANGE.
116 - (libeio) use posix_close if available.
117 - (libeio) internal close() calls no longer disturb errno.
118 - add IO:AIO::FALLOC_FL_UNSHARE.
119 - update schmorp.h for removal of USE_SOCKETS_AS_HANDLES
120 and better eventfd detection.
121
1224.34 Sun May 1 19:18:24 CEST 2016
123 - def0.h was not properly generated during previous release, causing
124 compile errors on various platforms.
125 - major/minor were accidentally switched (reported by Alexander Lishenyuk).
126 - removed duplicate definition of MAP_HUGETLB, that was found due to
127 a bug in Perl::Tidy (testcase by alaska332@gmail.com).
128 - added (untested!) aio_fcntl, aio_ioctl requests.
129 - (libeio) names set via prctl are truncated to 15 chars + nul, not 16,
130 as manpages-dev originally claimed.
131
1324.33 Mon Jan 18 12:50:10 CET 2016
133 - add IO::AIO::pipe2 function.
134 - added support for FALLOC_FL_COLLAPSE_RANGE and FALLOC_FL_ZERO_RANGE
135 constants.
136 - added support for O_TMPFILE and O_PATH constants.
137 - added support for MAP_FIXED, MAP_GROWSDOWN,MAP_32BIT, MAP_HUGETLB, MAP_STACK
138 consdtants, whether they can be sensibly used or not.
139 - use NO_INIT where applicable.
140 - update libecb.
141 - added stability canary support.
142 - updated linux super magic table to 4.3.3.
143
1444.32 Wed Feb 11 20:32:11 CET 2015
145 - replace off_t by STRLEN where appropriate, should not result in
146 user-visible changes.
147 - update ecb.h for C11 compatibility.
148
1494.31 Tue Jun 3 03:29:27 CEST 2014
150 - work around more 5.20 bugs. backwards compatibility my ass.
151
1524.3 Fri Apr 11 06:22:38 CEST 2014
153 - perl5porters broke Async::Interrupt, BDB, EV, IO::AIO, OpenCL
154 without warning by switching the meaning of USE_SOCKETS_AS_HANDLES
155 in 5.18. What's so attractive about giving a shit about backwards
156 compatibility - I will never understand.
157
1584.2 Sat Jan 25 01:13:14 CET 2014
159 - aio_group could corrupt memory because it didn't restore
160 the stack after req_submit.
161 - be more careful on (e.g. permission) errors in bin/treescan.
162 - work around changes in ExtUtils::MakeMaker.
163 - (libeio) implement aio_realpath for win32.
164 - (xthread) work around compile time bugs in ptw32.
165 - added IO::AIO::pipesize.
166 - (libecb) insignificant update.
167
1684.19 Sun Jan 6 12:47:26 CET 2013
169 - avoid endless loop in fiemap with some XFS files.
170 - in aio_rename and aio_rmdir, specialcase the case of [$wd, "."]
171 and call rename/rmdir instead of renameat/unlinkat.
172
1734.18 Thu Oct 11 07:01:26 CEST 2012
174 - fix unintended xthread_create by intentionalising it :)
175
1764.17 Thu Oct 11 05:19:47 CEST 2012
177 - rename aio_fallocate to aio_allocate, to match documentation.
178 - add list of linux fsid values to aio_statvfs docs.
179 - work around a bug in btrfs' FIEMAP ioctl implementation.
180 - work around AIX bug: statvfs.f_fsid is a struct, not unsigned long
181 as per unix spec.
182
1834.16 Tue Aug 14 05:39:03 CEST 2012
184 - aio_statvfs was wromgly marked for wd emulation, causing
185 it to malfunction for paths.
186 - fix a crash in aio_fiemap, when used on ranges without any
187 extents.
188 - work around linux kernel bug (at least in 3.2): kernel might
189 trash fiemap input arguments.
190 - work around linux kernel bug (at least in 3.2): kernel does not
191 set FIEMAP_EXTENT_LAST on last segment.
192 - work around linux kernel bug (at least in 3.2): kernel silently
193 truncates segment count if a file.
194 - make fh argument of IO::AIO::mmap optional, also add mmap/munmap
195 to quick overview.
196 - splice can corrupt data.
197 - (libeio) remove pread/pwrite emulation.
198 - do not grow mmaped scalars in aio_read.
199 - add FALLOC_FL_PUNCH_HOLE and document fallocate.
200 - provide pread/pwrite for win32, making it link again on native win32.
201
2024.15 Tue Apr 10 06:59:00 CEST 2012
203 - always include linux/types.h for fiemap, for compatibility to
204 ancient systems (Paul Howarth).
205 - experimental support for IO::AIO::splice and ::tee (no aio_...).
206 - provide SEEK_HOLE and SEEK_DATA, if available.
207 - work around (again!) an immensely stupid bug in RHEL, defining
208 autoconf macros in linux system headers (analysed by Paul Howarth).
209
2104.14 Sat Apr 7 02:45:18 CEST 2012
211 - fix stat structure usage on windows, which caused bogus stat results.
212 - (libeio) make readahead emulation behave more like actual readahead by never failing.
213 - new request aio_seek.
214 - new request aio_fiemap.
215 - autogenerate the #ifdef/#define 0 blocks for symbols we export.
216
2174.12 Fri Dec 30 08:51:25 CET 2011
218 - realpath would return a random value if the name was too long,
219 instead of -1.
220 - port to c89.
221
2224.11 Mon Oct 10 00:24:11 CEST 2011
223 - libeio didn't compile on !linux (Paul Howarth).
224
2254.1 Sun Oct 9 10:24:11 CEST 2011
226 - IO::AIO did access uninitialised memory on unsuccessful stats.
227 - (libeio) added syncfs syscall wrapper.
228 - (libeio) set thread name on linux (ps -L/Hcx, top, gdb).
229 - (libeio) support multiple indepenent working directories.
230 - applied speling corrections by Nicholas Bamber.
231 - tune treescan #threads and #outstanding requests a bit.
232 - reduce the number of file descriptors in use at any one time
233 in treescan, to avoid running out of them (and using too much ram).
234 - take advantage of working directoriy abstractions
235 in aio_scandir and treescan.
236 - reduce compiled size by ~10% by not inlining some key functionality.
237 - added --progress switch to treescan.
238
2394.0 Mon Jul 18 05:01:10 CEST 2011
240 - INCOMPATIBLE CHANGE: fork is no longer supported (indeed, it never was),
241 see FORK BEHAVIOUR in manpage for details.
242 - passes testsuite on win32 now and may actually work
243 (activestate 5.10.1 / MSVC6, YMMV).
244 - (libeio) fix a deadlock where a wakeup signal could be missed when
245 a timeout occured at the same time.
246 - (libeio) added realpath.
247 - (libeio) added fallocate.
248 - (libeio) disabling sendfile on darwin unfortunately broke the emulation.
249 - (libeio) do not acquire any locks when forking.
250 - (libeio) use fewer time() syscalls when waiting for new requests.
251
2523.93 Wed Jun 29 23:44:18 CEST 2011
253 - ECB.H WAS MISSING.
254
2553.92 Wed Jun 29 14:45:41 CEST 2011
256 - ecb.h was missing.
257
2583.91 Wed Jun 29 13:24:42 CEST 2011
259 - (libeio) work around a Linux (and likely FreeBSD and other
260 kernels) bug where sendfile would not transfer all the requested
261 bytes on large transfers, using a heuristic.
262 - buggy sendfile caused aio_move/copy to sometimes fail for big
263 files (fortunately it checks that the whole file has been
264 transferred...)
265 - use libecb for higher performance and higher portability.
266 - (libeio) disable sendfile on darwin, it's too broken.
267 - disable fork tests on !linux, as only linux supports mixing
268 pthread and fork in perl.
269 - document the fact that fork doesn't work anymore when using
270 this module, on anything !GNU/Linux.
271 - increase timeout in t/04_fork.t, as too many CPAN-tester setups
272 run on a 0.1MHz cpu. Or so.
273
2743.9 Fri May 27 02:43:47 CEST 2011
275 - (libeio) fix memory corruption in aio_readdirx for the flags
276 combination READDIR_STAT_ORDER | READDIR_DIRS_FIRST.
277 - add lots of newer POSIX and GNU/Linux-specific open
278 flags.
279
2803.8 Sun Mar 27 12:25:33 CEST 2011
281 - use nonstandard but maybe-working-on-bsd fork technique.
282 - support a max_idle value of 0.
283 - support setting of idle timeout value (IO::AIO::idle_timeout).
284
2853.72 Fri Feb 11 04:25:38 CET 2011
286 - use _POSIX_MEMLOCK_RANGE to detect mlock/munlock.
287 - aio_mknod always used a dev_t value of 0.
288 - new treescan option: --grep.
289 - add more S_IF macros, and major/minor/makedev "macros".
290
2913.71 Thu Dec 30 08:18:46 CET 2010
292 - the numerical result value passed to callbacks did not stringify
293 correctly, due to internal reuse and failure to reset the sv flags.
294 - actually test for posix_[mf]advise, as at least uClibc defines
295 _POSIX_ADVISORY_INFO without actually having any of the required
296 funcitonality. ugh.
297
2983.7 Mon Nov 1 23:00:34 CET 2010
299 - implement/add madvise, mmap, munmap, aio_mlockall, munlockall,
300 aio_mlock, munlock, msync and mtouch to @EXPORT_OK.
301 - document the sad state of affairs w.r.t. pthread on many bsds.
302 - do not enable mmap on systems without _POSIX_MAPPED_FILES
303 (openbsd 4.8).
304 - do not leak memory in IO::AIO::mmap when the scalar already
305 had string-data.
306 - add O_RDWR, O_APPEND and O_EXCL symbols and semi-document
307 them.
308 - cache the result IV, for a minor speedup in the common case.
309 - croak when an mmapped-scalar changes location, to detect
310 user-errors better.
311 - fix aio_readlink prototype.
312
3133.65 Wed Mar 31 02:45:05 CEST 2010
314 - actually use PATH_MAX instead of NAME_MAX for readlink, as to not
315 cut off long pathnames in aio_readlink (based on patch by
316 Rasmus Andersson).
317 - a double fork partially killed the event pipe (great testcase
318 by dormando). affects IO::AIO, BDB and Async::Interrupt.
319 - suck steve's dick and rename our symbols to avoid colliding
320 with nonstandard identifier spam on the broken os x pseudo-os.
321 affects IO::AIO and BDB.
322
3233.6 Mon Jan 11 00:43:39 CET 2010
324 - (libeio) more fixes for the freebsd/apple sendfile - broken by
325 manpage standards, but apparently correct accoridng to actual
326 kernel sources.
327 - add IO::AIO::mmap/munmap support.
328 - add IO::AIO::m(un)lockall support.
329 - clean up manpage.
330
3313.5 Thu Jan 7 21:25:04 CET 2010
332 - (liebio) fix freebsd sendfile (Vanilla Hsu).
333 - (libeio) also fix darwin sendfile that suffered from a similar bug.
334 - add aio_statvfs as interface to statvfs/fstatvfs.
335 - work around buggy symlink() on cygwin in the testsuite.
336 - wtf. freebsd-8.0 actually passes the testsuite! I knew
337 they could implement fork and semaphores one day! cheers!
338
3393.4 Sat Jan 2 15:13:04 CET 2010
340 - (libeio) max_poll_time was not properly converted to ticks.
341 - clarify cancel_subs description.
342 - IO::AIO::sendfile did not actually return the return value
343 from the sendfile call.
344 - implement aio_msync, aio_mtouch.
345 - (libeio) tentatively support darwin in sendfile.
346
3473.31 Thu Nov 12 02:14:29 CET 2009
348 - fix result status documentation of aio_copy, aio_move.
349 - speed up object creation considerably by avoiding
350 hash lookups.
351
3523.3 Wed Aug 5 13:52:58 CEST 2009
353 - use common::sense.
354 - use common schmorp.h header.
355 - allow integers (file descriptors) in addition to file handles.
356 - take advantage of linux' eventfd (but it seems slower on smp?).
357 - use poll not select on posix platforms.
358
3593.261 Wed Jul 1 10:11:51 CEST 2009
360 - more 0S X workarounds (patch by Tokuhiro Matsuno).
361
3623.26 Tue Jun 30 09:33:26 CEST 2009
363 - 0S X of course claims to be posix 2008 but lacks posix_fadvise.
364 try to work around this horribly broken OS in a somewhat hackish
365 way. might help other os's too.
366
3673.25 Sat Jun 27 05:18:26 CEST 2009
368 - added IO::AIO::fadvise and IO::AIO::sendfile.
369 - (libeio) replaced quicksort+insertion sort by a tuned radix
370 sort + insertion sort, resulting in comparable runtime (usually
371 faster) to the old version, but without any ill side effects on
372 degenerated (for quicksort) data.
12 - correctly sort dirs by inodes only if we have perfect type 373 - (libeio) correctly sort dirs by inodes if we have perfect type
13 knowledge and DIRS_FIRST is used. 374 knowledge and DIRS_FIRST is used.
14 - speed up directory entry sorting further by some 20%. 375 - (libeio) internally the wrong DT_* constants were used, but no
376 known system has differing EIO_DT_*/DT_* values, so not an issue.
377 - removed a (harmless) assert that was left over on the code
378 but should not have been.
379 - use more correct types (change IO length from IV to VAL64,
380 which makes a difference on systems without 64 bit perls).
15 381
163.23 Sat Jun 13 16:57:58 CEST 2009 3823.23 Sat Jun 13 16:57:58 CEST 2009
17 - fix off-by-one bug in aio_readdir that was introduced in the 383 - fix off-by-one bug in aio_readdir that was introduced in the
18 rushed 3.22 release. 384 rushed 3.22 release.
19 385

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