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Comparing IO-AIO/Changes (file contents):
Revision 1.159 by root, Tue Jun 17 23:38:10 2008 UTC vs.
Revision 1.326 by root, Thu Jan 28 15:40:08 2016 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? 5TODO: reduce condvar fairness: schedule hot-cache-threads first?
6TODO: splice/tee/vmsplice/sync_file_range? (http://kerneltrap.org/node/6505 http://lwn.net/Articles/178199/) 6TODO: vmsplice? (http://kerneltrap.org/node/6505 http://lwn.net/Articles/178199/)
7TODO: aio_fcntl, at least for file-locking 7TODO: aio_fcntl, at least for file-locking
8TODO: aio_mincore?
9TODO: getxattr etc.?
10TODO: F_DUPFD_CLOEXEC
11TODO: emulation for splice?
12TODO: eio_mmap|mlock|munmap|splice...
13TODO: syncfs/sync windows:
14TODO: F_SETPIPE_SZ, F_GETPIPE_SZ
15TODO: posix_fallocate when flags=0
16http://stackoverflow.com/questions/65170/how-to-get-name-associated-with-open-handle/5286888#5286888
17http://blogs.msdn.com/b/adioltean/archive/2005/04/16/408947.aspx
18http://msdn.microsoft.com/en-us/library/aa366789%28v=vs.85%29.aspx
19http://msdn.microsoft.com/en-us/library/windows/desktop/aa366789%28v=vs.85%29.aspx
20http://msdn.microsoft.com/en-us/library/windows/desktop/aa364425%28v=vs.85%29.aspx
21http://msdn.microsoft.com/en-us/library/windows/desktop/aa364963%28v=vs.85%29.aspx
22http://msdn.microsoft.com/en-us/library/windows/desktop/aa364996%28v=vs.85%29.aspx
23http://msdn.microsoft.com/en-us/library/windows/desktop/aa364994%28v=vs.85%29.aspx
24TODO: extra socket/tcp constants &c?
25TODO: getrandom, GRND_NONBLOCK, GRND_NONBLOCK
26TODO: 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);
27TODO: O_TMPFILE
28TODO: FALLOC_FL_COLLAPSE_RANGE
29TODO: FALLOC_FL_ZERO_RANGE
30TODO: renameat RENAME_EXCHANGE, RENAME_NOREPLACE, RENAME_EXCHANGE
31TODO: fcntl F_GETLKP/F_SETLKP/F_SETLKPW, http://lwn.net/Articles/586904/
32TODO: flink + AT_EMPTY_PATH
33TODO: name_to_handle_At + open_by_handle_at = clone fds
34
35TODO: rewrite rmtree et al. to support working directories (also speed them up)
36TODO: maybe IO::AIO leaks fds when requests are cancelled? maybe initialise result to -1?
37TODO: aio_wd should use O_PATH on linux, due to lacking O_SEARCH (http://comments.gmane.org/gmane.linux.file-systems/33611)
38 http://www.openwall.com/lists/musl/2013/02/23/4
39
40 - removed duplicate definition of MAP_HUGETLB, that was found due to
41 a bug in Perl::Tidy (testcase by alaska332@gmail.com).
42
434.33 Mon Jan 18 12:50:10 CET 2016
44 - add IO::AIO::pipe2 function.
45 - added support for FALLOC_FL_COLLAPSE_RANGE and FALLOC_FL_ZERO_RANGE
46 constants.
47 - added support for O_TMPFILE and O_PATH constants.
48 - added support for MAP_FIXED, MAP_GROWSDOWN,MAP_32BIT, MAP_HUGETLB, MAP_STACK
49 consdtants, whether they can be sensibly used or not.
50 - use NO_INIT where applicable.
51 - update libecb.
52 - added stability canary support.
53 - updated linux super magic table to 4.3.3.
54
554.32 Wed Feb 11 20:32:11 CET 2015
56 - replace off_t by STRLEN where appropriate, should not result in
57 user-visible changes.
58 - update ecb.h for C11 compatibility.
59
604.31 Tue Jun 3 03:29:27 CEST 2014
61 - work around more 5.20 bugs. backwards compatibility my ass.
62
634.3 Fri Apr 11 06:22:38 CEST 2014
64 - perl5porters broke Async::Interrupt, BDB, EV, IO::AIO, OpenCL
65 without warning by switching the meaning of USE_SOCKETS_AS_HANDLES
66 in 5.18. What's so attractive about giving a shit about backwards
67 compatibility - I will never understand.
68
694.2 Sat Jan 25 01:13:14 CET 2014
70 - aio_group could corrupt memory because it didn't restore
71 the stack after req_submit.
72 - be more careful on (e.g. permission) errors in bin/treescan.
73 - work around changes in ExtUtils::MakeMaker.
74 - (libeio) implement aio_realpath for win32.
75 - (xthread) work around compile time bugs in ptw32.
76 - added IO::AIO::pipesize.
77 - (libecb) insignificant update.
78
794.19 Sun Jan 6 12:47:26 CET 2013
80 - avoid endless loop in fiemap with some XFS files.
81 - in aio_rename and aio_rmdir, specialcase the case of [$wd, "."]
82 and call rename/rmdir instead of renameat/unlinkat.
83
844.18 Thu Oct 11 07:01:26 CEST 2012
85 - fix unintended xthread_create by intentionalising it :)
86
874.17 Thu Oct 11 05:19:47 CEST 2012
88 - rename aio_fallocate to aio_allocate, to match documentation.
89 - add list of linux fsid values to aio_statvfs docs.
90 - work around a bug in btrfs' FIEMAP ioctl implementation.
91 - work around AIX bug: statvfs.f_fsid is a struct, not unsigned long
92 as per unix spec.
93
944.16 Tue Aug 14 05:39:03 CEST 2012
95 - aio_statvfs was wromgly marked for wd emulation, causing
96 it to malfunction for paths.
97 - fix a crash in aio_fiemap, when used on ranges without any
98 extents.
99 - work around linux kernel bug (at least in 3.2): kernel might
100 trash fiemap input arguments.
101 - work around linux kernel bug (at least in 3.2): kernel does not
102 set FIEMAP_EXTENT_LAST on last segment.
103 - work around linux kernel bug (at least in 3.2): kernel silently
104 truncates segment count if a file.
105 - make fh argument of IO::AIO::mmap optional, also add mmap/munmap
106 to quick overview.
107 - splice can corrupt data.
108 - (libeio) remove pread/pwrite emulation.
109 - do not grow mmaped scalars in aio_read.
110 - add FALLOC_FL_PUNCH_HOLE and document fallocate.
111 - provide pread/pwrite for win32, making it link again on native win32.
112
1134.15 Tue Apr 10 06:59:00 CEST 2012
114 - always include linux/types.h for fiemap, for compatibility to
115 ancient systems (Paul Howarth).
116 - experimental support for IO::AIO::splice and ::tee (no aio_...).
117 - provide SEEK_HOLE and SEEK_DATA, if available.
118 - work around (again!) an immensely stupid bug in RHEL, defining
119 autoconf macros in linux system headers (analysed by Paul Howarth).
120
1214.14 Sat Apr 7 02:45:18 CEST 2012
122 - fix stat structure usage on windows, which caused bogus stat results.
123 - (libeio) make readahead emulation behave more like actual readahead by never failing.
124 - new request aio_seek.
125 - new request aio_fiemap.
126 - autogenerate the #ifdef/#define 0 blocks for symbols we export.
127
1284.12 Fri Dec 30 08:51:25 CET 2011
129 - realpath would return a random value if the name was too long,
130 instead of -1.
131 - port to c89.
132
1334.11 Mon Oct 10 00:24:11 CEST 2011
134 - libeio didn't compile on !linux (Paul Howarth).
135
1364.1 Sun Oct 9 10:24:11 CEST 2011
137 - IO::AIO did access uninitialised memory on unsuccessful stats.
138 - (libeio) added syncfs syscall wrapper.
139 - (libeio) set thread name on linux (ps -L/Hcx, top, gdb).
140 - (libeio) support multiple indepenent working directories.
141 - applied speling corrections by Nicholas Bamber.
142 - tune treescan #threads and #outstanding requests a bit.
143 - reduce the number of file descriptors in use at any one time
144 in treescan, to avoid running out of them (and using too much ram).
145 - take advantage of working directoriy abstractions
146 in aio_scandir and treescan.
147 - reduce compiled size by ~10% by not inlining some key functionality.
148 - added --progress switch to treescan.
149
1504.0 Mon Jul 18 05:01:10 CEST 2011
151 - INCOMPATIBLE CHANGE: fork is no longer supported (indeed, it never was),
152 see FORK BEHAVIOUR in manpage for details.
153 - passes testsuite on win32 now and may actually work
154 (activestate 5.10.1 / MSVC6, YMMV).
155 - (libeio) fix a deadlock where a wakeup signal could be missed when
156 a timeout occured at the same time.
157 - (libeio) added realpath.
158 - (libeio) added fallocate.
159 - (libeio) disabling sendfile on darwin unfortunately broke the emulation.
160 - (libeio) do not acquire any locks when forking.
161 - (libeio) use fewer time() syscalls when waiting for new requests.
162
1633.93 Wed Jun 29 23:44:18 CEST 2011
164 - ECB.H WAS MISSING.
165
1663.92 Wed Jun 29 14:45:41 CEST 2011
167 - ecb.h was missing.
168
1693.91 Wed Jun 29 13:24:42 CEST 2011
170 - (libeio) work around a Linux (and likely FreeBSD and other
171 kernels) bug where sendfile would not transfer all the requested
172 bytes on large transfers, using a heuristic.
173 - buggy sendfile caused aio_move/copy to sometimes fail for big
174 files (fortunately it checks that the whole file has been
175 transferred...)
176 - use libecb for higher performance and higher portability.
177 - (libeio) disable sendfile on darwin, it's too broken.
178 - disable fork tests on !linux, as only linux supports mixing
179 pthread and fork in perl.
180 - document the fact that fork doesn't work anymore when using
181 this module, on anything !GNU/Linux.
182 - increase timeout in t/04_fork.t, as too many CPAN-tester setups
183 run on a 0.1MHz cpu. Or so.
184
1853.9 Fri May 27 02:43:47 CEST 2011
186 - (libeio) fix memory corruption in aio_readdirx for the flags
187 combination READDIR_STAT_ORDER | READDIR_DIRS_FIRST.
188 - add lots of newer POSIX and GNU/Linux-specific open
189 flags.
190
1913.8 Sun Mar 27 12:25:33 CEST 2011
192 - use nonstandard but maybe-working-on-bsd fork technique.
193 - support a max_idle value of 0.
194 - support setting of idle timeout value (IO::AIO::idle_timeout).
195
1963.72 Fri Feb 11 04:25:38 CET 2011
197 - use _POSIX_MEMLOCK_RANGE to detect mlock/munlock.
198 - aio_mknod always used a dev_t value of 0.
199 - new treescan option: --grep.
200 - add more S_IF macros, and major/minor/makedev "macros".
201
2023.71 Thu Dec 30 08:18:46 CET 2010
203 - the numerical result value passed to callbacks did not stringify
204 correctly, due to internal reuse and failure to reset the sv flags.
205 - actually test for posix_[mf]advise, as at least uClibc defines
206 _POSIX_ADVISORY_INFO without actually having any of the required
207 funcitonality. ugh.
208
2093.7 Mon Nov 1 23:00:34 CET 2010
210 - implement/add madvise, mmap, munmap, aio_mlockall, munlockall,
211 aio_mlock, munlock, msync and mtouch to @EXPORT_OK.
212 - document the sad state of affairs w.r.t. pthread on many bsds.
213 - do not enable mmap on systems without _POSIX_MAPPED_FILES
214 (openbsd 4.8).
215 - do not leak memory in IO::AIO::mmap when the scalar already
216 had string-data.
217 - add O_RDWR, O_APPEND and O_EXCL symbols and semi-document
218 them.
219 - cache the result IV, for a minor speedup in the common case.
220 - croak when an mmapped-scalar changes location, to detect
221 user-errors better.
222 - fix aio_readlink prototype.
223
2243.65 Wed Mar 31 02:45:05 CEST 2010
225 - actually use PATH_MAX instead of NAME_MAX for readlink, as to not
226 cut off long pathnames in aio_readlink (based on patch by
227 Rasmus Andersson).
228 - a double fork partially killed the event pipe (great testcase
229 by dormando). affects IO::AIO, BDB and Async::Interrupt.
230 - suck steve's dick and rename our symbols to avoid colliding
231 with nonstandard identifier spam on the broken os x pseudo-os.
232 affects IO::AIO and BDB.
233
2343.6 Mon Jan 11 00:43:39 CET 2010
235 - (libeio) more fixes for the freebsd/apple sendfile - broken by
236 manpage standards, but apparently correct accoridng to actual
237 kernel sources.
238 - add IO::AIO::mmap/munmap support.
239 - add IO::AIO::m(un)lockall support.
240 - clean up manpage.
241
2423.5 Thu Jan 7 21:25:04 CET 2010
243 - (liebio) fix freebsd sendfile (Vanilla Hsu).
244 - (libeio) also fix darwin sendfile that suffered from a similar bug.
245 - add aio_statvfs as interface to statvfs/fstatvfs.
246 - work around buggy symlink() on cygwin in the testsuite.
247 - wtf. freebsd-8.0 actually passes the testsuite! I knew
248 they could implement fork and semaphores one day! cheers!
249
2503.4 Sat Jan 2 15:13:04 CET 2010
251 - (libeio) max_poll_time was not properly converted to ticks.
252 - clarify cancel_subs description.
253 - IO::AIO::sendfile did not actually return the return value
254 from the sendfile call.
255 - implement aio_msync, aio_mtouch.
256 - (libeio) tentatively support darwin in sendfile.
257
2583.31 Thu Nov 12 02:14:29 CET 2009
259 - fix result status documentation of aio_copy, aio_move.
260 - speed up object creation considerably by avoiding
261 hash lookups.
262
2633.3 Wed Aug 5 13:52:58 CEST 2009
264 - use common::sense.
265 - use common schmorp.h header.
266 - allow integers (file descriptors) in addition to file handles.
267 - take advantage of linux' eventfd (but it seems slower on smp?).
268 - use poll not select on posix platforms.
269
2703.261 Wed Jul 1 10:11:51 CEST 2009
271 - more 0S X workarounds (patch by Tokuhiro Matsuno).
272
2733.26 Tue Jun 30 09:33:26 CEST 2009
274 - 0S X of course claims to be posix 2008 but lacks posix_fadvise.
275 try to work around this horribly broken OS in a somewhat hackish
276 way. might help other os's too.
277
2783.25 Sat Jun 27 05:18:26 CEST 2009
279 - added IO::AIO::fadvise and IO::AIO::sendfile.
280 - (libeio) replaced quicksort+insertion sort by a tuned radix
281 sort + insertion sort, resulting in comparable runtime (usually
282 faster) to the old version, but without any ill side effects on
283 degenerated (for quicksort) data.
284 - (libeio) correctly sort dirs by inodes if we have perfect type
285 knowledge and DIRS_FIRST is used.
286 - (libeio) internally the wrong DT_* constants were used, but no
287 known system has differing EIO_DT_*/DT_* values, so not an issue.
288 - removed a (harmless) assert that was left over on the code
289 but should not have been.
290 - use more correct types (change IO length from IV to VAL64,
291 which makes a difference on systems without 64 bit perls).
292
2933.23 Sat Jun 13 16:57:58 CEST 2009
294 - fix off-by-one bug in aio_readdir that was introduced in the
295 rushed 3.22 release.
296
2973.22 Sat Jun 13 15:32:40 CEST 2009
298 - speed up readdirx sort algorithm slightly.
299 - bin/treescan was missing from distro tarball.
300
3013.21 Fri Jun 12 18:45:53 CEST 2009
302 - new options --dirs and --files for treescan.
303 - install bin/treescan by default.
304 - (libeio) aio_readdir can now be cancelled while executing.
305 - fix a printf format string for 64 bit systems (could lead
306 to problems on big endian 64 bit systems).
307 - do not use qsort() but our own algorithm: glibc initialises
308 the whole locale and I/O subsystem inside qsort, causing
309 a stack overflow on 32 bit machines. The new sort uses much less
310 stack and is more than twice as fast in typical situations.
311
3123.2 Sun Jun 7 20:30:05 CEST 2009
313 - (libeio) pwrite emulation was even more flawed than intended and did
314 not restore the file offset.
315 - add aio_readdirx, which can return inode and filetype and sort
316 the names in various ways.
317 - unfortunately, utime, chmod, chown on an open file that has just
318 been written can easily block, which caused aio_copy to block the
319 process. no more!
320 - no longer rely on dst path in aio_copy when futime is available.
321
3223.19 Tue Apr 21 22:05:21 CEST 2009
323 - more perl 5.10 workarounds for aio_read and write.
324 - aio_write no longer modifies the sv (if possible).
325 - aio_read now works correctly with magic values.
326
3273.18 Sun Apr 19 21:17:32 CEST 2009
328 - better diagnostics when some aio_* functions get passed an illegal fh.
329 - try to avoid crashes due to incompatible 5.10 API changes. grmbl.
330
3313.17 Thu Nov 20 08:45:36 CET 2008
332 - (libeio) added aio_sync_file_range (untested).
333 - add aio_busy to @IO::AIO::AIO_REQ.
334
3353.16 Wed Oct 22 18:28:01 CEST 2008
336 - use SvREFCNT_inc instead of SvREFCNT_inc_NN in a non-speed critical
337 part to improve portability to perl 5.8 (reported by szymon).
338
3393.15 Mon Oct 13 00:39:55 CEST 2008
340 - automatic removal of feeders was broken.
341 - (libeio) use a more robust method to detect whether a feeder
342 has added something to the group or not.
343
3443.1 Thu Oct 2 13:34:40 CEST 2008
345 - pre-deref the passed callback object, for increased speed
346 and decreased memory usage.
347 - call on_next_submit callback even for aio_group - impact unknown,
348 but seems more correct.
349 - $req->cb now returns the original callback.
350 - (libeio) pass EIO_GROUP/aio_group requests through the queue without
351 requiring a thread switch.
352 - (libeio) status code of aio_futime and aio_utime was always passed 0.
353 - do some other ยต-optimisations.
354
3553.07 Sat Aug 2 16:06:13 CEST 2008
356 - do not include LIBS in autoconf tests.
357
3583.06 Tue Jul 15 12:41:32 CEST 2008
359 - move preadwritelock definition before it's first reference,
360 to make it compile again on broken platforms (they still exist)
361 or badly cofngiured perls (redhat...), reported by Rob Bloodgood.
362
3633.05 Thu Jun 19 23:23:52 CEST 2008
364 - work around perl overriding readdir etc. with thread-unsafe
365 (sic!) versions.
8 366
93.04 Wed Jun 18 01:35:38 CEST 2008 3673.04 Wed Jun 18 01:35:38 CEST 2008
10 - (libeio) fix eio_mknod, which confused it's arguments. 368 - (libeio) fix eio_mknod, which confused it's arguments.
11 - (libeio) do not use readdir_r, as Ulrich Drepper pointed out that this 369 - (libeio) do not use readdir_r, as Ulrich Drepper pointed out that this
12 is stupid. 370 is stupid.

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