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Comparing IO-AIO/Changes (file contents):
Revision 1.160 by root, Thu Jun 19 09:05:43 2008 UTC vs.
Revision 1.338 by root, Fri Jun 23 03:39:05 2017 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: execveat? really?
26TODO: getrandom, GRND_NONBLOCK, GRND_NONBLOCK
27TODO: 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);
28TODO: O_TMPFILE
29TODO: renameat2 RENAME_EXCHANGE, RENAME_NOREPLACE, RENAME_EXCHANGE
30TODO: fcntl F_GETLKP/F_SETLKP/F_SETLKPW, http://lwn.net/Articles/586904/
31TODO: linkat + AT_EMPTY_PATH
32TODO: name_to_handle_At + open_by_handle_at = clone fds
33TODO: lchown
34TODO: mount/umount2/MS_* flags
8 35
36TODO: rewrite rmtree et al. to support working directories (also speed them up)
37TODO: maybe IO::AIO leaks fds when requests are cancelled? maybe initialise result to -1?
38TODO: aio_wd should use O_PATH on linux, due to lacking O_SEARCH (http://comments.gmane.org/gmane.linux.file-systems/33611)
39 http://www.openwall.com/lists/musl/2013/02/23/4
40TODO: aio_fcntl/ioctl test.
41TODO: copy_file_range, copy_file_range
42TODO: FIDEDUPERANGE, file_ioctl.c
43TODO: mincore
44TODO: SOCK_CLOEXEc etc.
45TODO: unlinkat flags, linkat flags
46
47 - add MADV_FREE constant.
48 - add a bunch of (mostly linux-specific) constants for use in ioctls
49 (see aio_ioctl docs).
50 - treescan now has a proper manpage and useful --help output.
51 - new option --sync in treescan, to sync everything in a subtree.
52 - changed default for aio_msync flags to MSYNC_SYNC.
53 - document offset/length behaviour of mprotect/madvise.
54 - support linux's renameat2 (via aio_rename2).
55 - add aio_rename2, an aio_rename with flags.
56
574.34 Sun May 1 19:18:24 CEST 2016
58 - def0.h was not properly generated during previous release, causing
59 compile errors on various platforms.
60 - major/minor were accidentally switched (reported by Alexander Lishenyuk).
61 - removed duplicate definition of MAP_HUGETLB, that was found due to
62 a bug in Perl::Tidy (testcase by alaska332@gmail.com).
63 - added (untested!) aio_fcntl, aio_ioctl requests.
64 - (libeio) names set via prctl are truncated to 15 chars + nul, not 16,
65 as manpages-dev originally claimed.
66
674.33 Mon Jan 18 12:50:10 CET 2016
68 - add IO::AIO::pipe2 function.
69 - added support for FALLOC_FL_COLLAPSE_RANGE and FALLOC_FL_ZERO_RANGE
70 constants.
71 - added support for O_TMPFILE and O_PATH constants.
72 - added support for MAP_FIXED, MAP_GROWSDOWN,MAP_32BIT, MAP_HUGETLB, MAP_STACK
73 consdtants, whether they can be sensibly used or not.
74 - use NO_INIT where applicable.
75 - update libecb.
76 - added stability canary support.
77 - updated linux super magic table to 4.3.3.
78
794.32 Wed Feb 11 20:32:11 CET 2015
80 - replace off_t by STRLEN where appropriate, should not result in
81 user-visible changes.
82 - update ecb.h for C11 compatibility.
83
844.31 Tue Jun 3 03:29:27 CEST 2014
85 - work around more 5.20 bugs. backwards compatibility my ass.
86
874.3 Fri Apr 11 06:22:38 CEST 2014
88 - perl5porters broke Async::Interrupt, BDB, EV, IO::AIO, OpenCL
89 without warning by switching the meaning of USE_SOCKETS_AS_HANDLES
90 in 5.18. What's so attractive about giving a shit about backwards
91 compatibility - I will never understand.
92
934.2 Sat Jan 25 01:13:14 CET 2014
94 - aio_group could corrupt memory because it didn't restore
95 the stack after req_submit.
96 - be more careful on (e.g. permission) errors in bin/treescan.
97 - work around changes in ExtUtils::MakeMaker.
98 - (libeio) implement aio_realpath for win32.
99 - (xthread) work around compile time bugs in ptw32.
100 - added IO::AIO::pipesize.
101 - (libecb) insignificant update.
102
1034.19 Sun Jan 6 12:47:26 CET 2013
104 - avoid endless loop in fiemap with some XFS files.
105 - in aio_rename and aio_rmdir, specialcase the case of [$wd, "."]
106 and call rename/rmdir instead of renameat/unlinkat.
107
1084.18 Thu Oct 11 07:01:26 CEST 2012
109 - fix unintended xthread_create by intentionalising it :)
110
1114.17 Thu Oct 11 05:19:47 CEST 2012
112 - rename aio_fallocate to aio_allocate, to match documentation.
113 - add list of linux fsid values to aio_statvfs docs.
114 - work around a bug in btrfs' FIEMAP ioctl implementation.
115 - work around AIX bug: statvfs.f_fsid is a struct, not unsigned long
116 as per unix spec.
117
1184.16 Tue Aug 14 05:39:03 CEST 2012
119 - aio_statvfs was wromgly marked for wd emulation, causing
120 it to malfunction for paths.
121 - fix a crash in aio_fiemap, when used on ranges without any
122 extents.
123 - work around linux kernel bug (at least in 3.2): kernel might
124 trash fiemap input arguments.
125 - work around linux kernel bug (at least in 3.2): kernel does not
126 set FIEMAP_EXTENT_LAST on last segment.
127 - work around linux kernel bug (at least in 3.2): kernel silently
128 truncates segment count if a file.
129 - make fh argument of IO::AIO::mmap optional, also add mmap/munmap
130 to quick overview.
131 - splice can corrupt data.
132 - (libeio) remove pread/pwrite emulation.
133 - do not grow mmaped scalars in aio_read.
134 - add FALLOC_FL_PUNCH_HOLE and document fallocate.
135 - provide pread/pwrite for win32, making it link again on native win32.
136
1374.15 Tue Apr 10 06:59:00 CEST 2012
138 - always include linux/types.h for fiemap, for compatibility to
139 ancient systems (Paul Howarth).
140 - experimental support for IO::AIO::splice and ::tee (no aio_...).
141 - provide SEEK_HOLE and SEEK_DATA, if available.
142 - work around (again!) an immensely stupid bug in RHEL, defining
143 autoconf macros in linux system headers (analysed by Paul Howarth).
144
1454.14 Sat Apr 7 02:45:18 CEST 2012
146 - fix stat structure usage on windows, which caused bogus stat results.
147 - (libeio) make readahead emulation behave more like actual readahead by never failing.
148 - new request aio_seek.
149 - new request aio_fiemap.
150 - autogenerate the #ifdef/#define 0 blocks for symbols we export.
151
1524.12 Fri Dec 30 08:51:25 CET 2011
153 - realpath would return a random value if the name was too long,
154 instead of -1.
155 - port to c89.
156
1574.11 Mon Oct 10 00:24:11 CEST 2011
158 - libeio didn't compile on !linux (Paul Howarth).
159
1604.1 Sun Oct 9 10:24:11 CEST 2011
161 - IO::AIO did access uninitialised memory on unsuccessful stats.
162 - (libeio) added syncfs syscall wrapper.
163 - (libeio) set thread name on linux (ps -L/Hcx, top, gdb).
164 - (libeio) support multiple indepenent working directories.
165 - applied speling corrections by Nicholas Bamber.
166 - tune treescan #threads and #outstanding requests a bit.
167 - reduce the number of file descriptors in use at any one time
168 in treescan, to avoid running out of them (and using too much ram).
169 - take advantage of working directoriy abstractions
170 in aio_scandir and treescan.
171 - reduce compiled size by ~10% by not inlining some key functionality.
172 - added --progress switch to treescan.
173
1744.0 Mon Jul 18 05:01:10 CEST 2011
175 - INCOMPATIBLE CHANGE: fork is no longer supported (indeed, it never was),
176 see FORK BEHAVIOUR in manpage for details.
177 - passes testsuite on win32 now and may actually work
178 (activestate 5.10.1 / MSVC6, YMMV).
179 - (libeio) fix a deadlock where a wakeup signal could be missed when
180 a timeout occured at the same time.
181 - (libeio) added realpath.
182 - (libeio) added fallocate.
183 - (libeio) disabling sendfile on darwin unfortunately broke the emulation.
184 - (libeio) do not acquire any locks when forking.
185 - (libeio) use fewer time() syscalls when waiting for new requests.
186
1873.93 Wed Jun 29 23:44:18 CEST 2011
188 - ECB.H WAS MISSING.
189
1903.92 Wed Jun 29 14:45:41 CEST 2011
191 - ecb.h was missing.
192
1933.91 Wed Jun 29 13:24:42 CEST 2011
194 - (libeio) work around a Linux (and likely FreeBSD and other
195 kernels) bug where sendfile would not transfer all the requested
196 bytes on large transfers, using a heuristic.
197 - buggy sendfile caused aio_move/copy to sometimes fail for big
198 files (fortunately it checks that the whole file has been
199 transferred...)
200 - use libecb for higher performance and higher portability.
201 - (libeio) disable sendfile on darwin, it's too broken.
202 - disable fork tests on !linux, as only linux supports mixing
203 pthread and fork in perl.
204 - document the fact that fork doesn't work anymore when using
205 this module, on anything !GNU/Linux.
206 - increase timeout in t/04_fork.t, as too many CPAN-tester setups
207 run on a 0.1MHz cpu. Or so.
208
2093.9 Fri May 27 02:43:47 CEST 2011
210 - (libeio) fix memory corruption in aio_readdirx for the flags
211 combination READDIR_STAT_ORDER | READDIR_DIRS_FIRST.
212 - add lots of newer POSIX and GNU/Linux-specific open
213 flags.
214
2153.8 Sun Mar 27 12:25:33 CEST 2011
216 - use nonstandard but maybe-working-on-bsd fork technique.
217 - support a max_idle value of 0.
218 - support setting of idle timeout value (IO::AIO::idle_timeout).
219
2203.72 Fri Feb 11 04:25:38 CET 2011
221 - use _POSIX_MEMLOCK_RANGE to detect mlock/munlock.
222 - aio_mknod always used a dev_t value of 0.
223 - new treescan option: --grep.
224 - add more S_IF macros, and major/minor/makedev "macros".
225
2263.71 Thu Dec 30 08:18:46 CET 2010
227 - the numerical result value passed to callbacks did not stringify
228 correctly, due to internal reuse and failure to reset the sv flags.
229 - actually test for posix_[mf]advise, as at least uClibc defines
230 _POSIX_ADVISORY_INFO without actually having any of the required
231 funcitonality. ugh.
232
2333.7 Mon Nov 1 23:00:34 CET 2010
234 - implement/add madvise, mmap, munmap, aio_mlockall, munlockall,
235 aio_mlock, munlock, msync and mtouch to @EXPORT_OK.
236 - document the sad state of affairs w.r.t. pthread on many bsds.
237 - do not enable mmap on systems without _POSIX_MAPPED_FILES
238 (openbsd 4.8).
239 - do not leak memory in IO::AIO::mmap when the scalar already
240 had string-data.
241 - add O_RDWR, O_APPEND and O_EXCL symbols and semi-document
242 them.
243 - cache the result IV, for a minor speedup in the common case.
244 - croak when an mmapped-scalar changes location, to detect
245 user-errors better.
246 - fix aio_readlink prototype.
247
2483.65 Wed Mar 31 02:45:05 CEST 2010
249 - actually use PATH_MAX instead of NAME_MAX for readlink, as to not
250 cut off long pathnames in aio_readlink (based on patch by
251 Rasmus Andersson).
252 - a double fork partially killed the event pipe (great testcase
253 by dormando). affects IO::AIO, BDB and Async::Interrupt.
254 - suck steve's dick and rename our symbols to avoid colliding
255 with nonstandard identifier spam on the broken os x pseudo-os.
256 affects IO::AIO and BDB.
257
2583.6 Mon Jan 11 00:43:39 CET 2010
259 - (libeio) more fixes for the freebsd/apple sendfile - broken by
260 manpage standards, but apparently correct accoridng to actual
261 kernel sources.
262 - add IO::AIO::mmap/munmap support.
263 - add IO::AIO::m(un)lockall support.
264 - clean up manpage.
265
2663.5 Thu Jan 7 21:25:04 CET 2010
267 - (liebio) fix freebsd sendfile (Vanilla Hsu).
268 - (libeio) also fix darwin sendfile that suffered from a similar bug.
269 - add aio_statvfs as interface to statvfs/fstatvfs.
270 - work around buggy symlink() on cygwin in the testsuite.
271 - wtf. freebsd-8.0 actually passes the testsuite! I knew
272 they could implement fork and semaphores one day! cheers!
273
2743.4 Sat Jan 2 15:13:04 CET 2010
275 - (libeio) max_poll_time was not properly converted to ticks.
276 - clarify cancel_subs description.
277 - IO::AIO::sendfile did not actually return the return value
278 from the sendfile call.
279 - implement aio_msync, aio_mtouch.
280 - (libeio) tentatively support darwin in sendfile.
281
2823.31 Thu Nov 12 02:14:29 CET 2009
283 - fix result status documentation of aio_copy, aio_move.
284 - speed up object creation considerably by avoiding
285 hash lookups.
286
2873.3 Wed Aug 5 13:52:58 CEST 2009
288 - use common::sense.
289 - use common schmorp.h header.
290 - allow integers (file descriptors) in addition to file handles.
291 - take advantage of linux' eventfd (but it seems slower on smp?).
292 - use poll not select on posix platforms.
293
2943.261 Wed Jul 1 10:11:51 CEST 2009
295 - more 0S X workarounds (patch by Tokuhiro Matsuno).
296
2973.26 Tue Jun 30 09:33:26 CEST 2009
298 - 0S X of course claims to be posix 2008 but lacks posix_fadvise.
299 try to work around this horribly broken OS in a somewhat hackish
300 way. might help other os's too.
301
3023.25 Sat Jun 27 05:18:26 CEST 2009
303 - added IO::AIO::fadvise and IO::AIO::sendfile.
304 - (libeio) replaced quicksort+insertion sort by a tuned radix
305 sort + insertion sort, resulting in comparable runtime (usually
306 faster) to the old version, but without any ill side effects on
307 degenerated (for quicksort) data.
308 - (libeio) correctly sort dirs by inodes if we have perfect type
309 knowledge and DIRS_FIRST is used.
310 - (libeio) internally the wrong DT_* constants were used, but no
311 known system has differing EIO_DT_*/DT_* values, so not an issue.
312 - removed a (harmless) assert that was left over on the code
313 but should not have been.
314 - use more correct types (change IO length from IV to VAL64,
315 which makes a difference on systems without 64 bit perls).
316
3173.23 Sat Jun 13 16:57:58 CEST 2009
318 - fix off-by-one bug in aio_readdir that was introduced in the
319 rushed 3.22 release.
320
3213.22 Sat Jun 13 15:32:40 CEST 2009
322 - speed up readdirx sort algorithm slightly.
323 - bin/treescan was missing from distro tarball.
324
3253.21 Fri Jun 12 18:45:53 CEST 2009
326 - new options --dirs and --files for treescan.
327 - install bin/treescan by default.
328 - (libeio) aio_readdir can now be cancelled while executing.
329 - fix a printf format string for 64 bit systems (could lead
330 to problems on big endian 64 bit systems).
331 - do not use qsort() but our own algorithm: glibc initialises
332 the whole locale and I/O subsystem inside qsort, causing
333 a stack overflow on 32 bit machines. The new sort uses much less
334 stack and is more than twice as fast in typical situations.
335
3363.2 Sun Jun 7 20:30:05 CEST 2009
337 - (libeio) pwrite emulation was even more flawed than intended and did
338 not restore the file offset.
339 - add aio_readdirx, which can return inode and filetype and sort
340 the names in various ways.
341 - unfortunately, utime, chmod, chown on an open file that has just
342 been written can easily block, which caused aio_copy to block the
343 process. no more!
344 - no longer rely on dst path in aio_copy when futime is available.
345
3463.19 Tue Apr 21 22:05:21 CEST 2009
347 - more perl 5.10 workarounds for aio_read and write.
348 - aio_write no longer modifies the sv (if possible).
349 - aio_read now works correctly with magic values.
350
3513.18 Sun Apr 19 21:17:32 CEST 2009
352 - better diagnostics when some aio_* functions get passed an illegal fh.
353 - try to avoid crashes due to incompatible 5.10 API changes. grmbl.
354
3553.17 Thu Nov 20 08:45:36 CET 2008
356 - (libeio) added aio_sync_file_range (untested).
357 - add aio_busy to @IO::AIO::AIO_REQ.
358
3593.16 Wed Oct 22 18:28:01 CEST 2008
360 - use SvREFCNT_inc instead of SvREFCNT_inc_NN in a non-speed critical
361 part to improve portability to perl 5.8 (reported by szymon).
362
3633.15 Mon Oct 13 00:39:55 CEST 2008
364 - automatic removal of feeders was broken.
365 - (libeio) use a more robust method to detect whether a feeder
366 has added something to the group or not.
367
3683.1 Thu Oct 2 13:34:40 CEST 2008
369 - pre-deref the passed callback object, for increased speed
370 and decreased memory usage.
371 - call on_next_submit callback even for aio_group - impact unknown,
372 but seems more correct.
373 - $req->cb now returns the original callback.
374 - (libeio) pass EIO_GROUP/aio_group requests through the queue without
375 requiring a thread switch.
376 - (libeio) status code of aio_futime and aio_utime was always passed 0.
377 - do some other ยต-optimisations.
378
3793.07 Sat Aug 2 16:06:13 CEST 2008
380 - do not include LIBS in autoconf tests.
381
3823.06 Tue Jul 15 12:41:32 CEST 2008
383 - move preadwritelock definition before it's first reference,
384 to make it compile again on broken platforms (they still exist)
385 or badly cofngiured perls (redhat...), reported by Rob Bloodgood.
386
3873.05 Thu Jun 19 23:23:52 CEST 2008
9 - work around perl overriding readdir etc. with thread-unsafe 388 - work around perl overriding readdir etc. with thread-unsafe
10 versions (omg). 389 (sic!) versions.
11 390
123.04 Wed Jun 18 01:35:38 CEST 2008 3913.04 Wed Jun 18 01:35:38 CEST 2008
13 - (libeio) fix eio_mknod, which confused it's arguments. 392 - (libeio) fix eio_mknod, which confused it's arguments.
14 - (libeio) do not use readdir_r, as Ulrich Drepper pointed out that this 393 - (libeio) do not use readdir_r, as Ulrich Drepper pointed out that this
15 is stupid. 394 is stupid.

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