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Comparing IO-AIO/Changes (file contents):
Revision 1.186 by root, Sun Jun 7 18:31:18 2009 UTC vs.
Revision 1.366 by root, Tue Aug 14 11:50:43 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.?
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
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
39
40 - include sys/mkdev.h or sys/sysmacros.h if available.
41
424.53 Tue Aug 14 11:27:50 CEST 2018
43 - add $Config{libs} to LIBS for configure, to work around systems
44 with broken library dependencies (... openbsd).
45
464.52 Sun Aug 12 08:09:45 CEST 2018
47 - config.h.in was missing in distribution.
48
494.51 Sun Aug 12 07:24:14 CEST 2018
50 - complete rework of the autoconf framework: IO::AIO now uses its own
51 config.h, separate from libeio, and tries to test the actual perl
52 environment, not the standard system environment.
53 - provide nanosecond-accracy stat time accessors for both perl and IO::AIO
54 stat functions.
55 - removed non-portable C++ syntax from eio.c.
56 - try to fix readdir tests on cygwin spuriously failing.
57
584.5 Wed Aug 1 00:23:55 CEST 2018
59 - aio_mtouch touch all pages as requested, not just the first page in most cases.
60 - new function: IO::AIO::mremap, linux-specific mremap, with constants MREMAP_MAYMOVE
61 and MREMAP_FIXED.
62 - add O_ACCMODE.
63 - add (undocumented) MSG_CMSG_CLOEXEC and SOCK_CLOEXEC constants.
64
654.4 Tue Feb 20 07:54:12 CET 2018
66 - new aio_slurp request.
67 - add (experimental) IO::AIO::eventfd and timerfd* function.
68 - add (experimental) IO::AIO::get_fdlimit and IO::AIO::min_fdlimit.
69 - point out that aio_copy overwrites existing files.
70 - removed filesystem magic number table from aio_statvfs docs as
71 statvfs doesn't actually return this info at all (statfs does).
72 - add a bunch of (mostly linux-specific) constants for use in ioctls
73 (see aio_ioctl docs).
74 - treescan now has a proper manpage and useful --help output.
75 - new option --sync in treescan, to sync everything in a subtree.
76 - changed default for aio_msync flags to MSYNC_SYNC.
77 - document offset/length behaviour of mprotect/madvise.
78 - support linux's renameat2 (via aio_rename2).
79 - add aio_rename2, an aio_rename with flags.
80 - add F_DUPPFD_CLOEXEC, F_OFD_[SG]ETLKW? constants.
81 - add FALLOC_FL_INSERT_RANGE, FALLOC_FL_UNSHARE_RANGE.
82 - (libeio) use posix_close if available.
83 - (libeio) internal close() calls no longer disturb errno.
84 - add IO:AIO::FALLOC_FL_UNSHARE.
85 - update schmorp.h for removal of USE_SOCKETS_AS_HANDLES
86 and better eventfd detection.
87
884.34 Sun May 1 19:18:24 CEST 2016
89 - def0.h was not properly generated during previous release, causing
90 compile errors on various platforms.
91 - major/minor were accidentally switched (reported by Alexander Lishenyuk).
92 - removed duplicate definition of MAP_HUGETLB, that was found due to
93 a bug in Perl::Tidy (testcase by alaska332@gmail.com).
94 - added (untested!) aio_fcntl, aio_ioctl requests.
95 - (libeio) names set via prctl are truncated to 15 chars + nul, not 16,
96 as manpages-dev originally claimed.
97
984.33 Mon Jan 18 12:50:10 CET 2016
99 - add IO::AIO::pipe2 function.
100 - added support for FALLOC_FL_COLLAPSE_RANGE and FALLOC_FL_ZERO_RANGE
101 constants.
102 - added support for O_TMPFILE and O_PATH constants.
103 - added support for MAP_FIXED, MAP_GROWSDOWN,MAP_32BIT, MAP_HUGETLB, MAP_STACK
104 consdtants, whether they can be sensibly used or not.
105 - use NO_INIT where applicable.
106 - update libecb.
107 - added stability canary support.
108 - updated linux super magic table to 4.3.3.
109
1104.32 Wed Feb 11 20:32:11 CET 2015
111 - replace off_t by STRLEN where appropriate, should not result in
112 user-visible changes.
113 - update ecb.h for C11 compatibility.
114
1154.31 Tue Jun 3 03:29:27 CEST 2014
116 - work around more 5.20 bugs. backwards compatibility my ass.
117
1184.3 Fri Apr 11 06:22:38 CEST 2014
119 - perl5porters broke Async::Interrupt, BDB, EV, IO::AIO, OpenCL
120 without warning by switching the meaning of USE_SOCKETS_AS_HANDLES
121 in 5.18. What's so attractive about giving a shit about backwards
122 compatibility - I will never understand.
123
1244.2 Sat Jan 25 01:13:14 CET 2014
125 - aio_group could corrupt memory because it didn't restore
126 the stack after req_submit.
127 - be more careful on (e.g. permission) errors in bin/treescan.
128 - work around changes in ExtUtils::MakeMaker.
129 - (libeio) implement aio_realpath for win32.
130 - (xthread) work around compile time bugs in ptw32.
131 - added IO::AIO::pipesize.
132 - (libecb) insignificant update.
133
1344.19 Sun Jan 6 12:47:26 CET 2013
135 - avoid endless loop in fiemap with some XFS files.
136 - in aio_rename and aio_rmdir, specialcase the case of [$wd, "."]
137 and call rename/rmdir instead of renameat/unlinkat.
138
1394.18 Thu Oct 11 07:01:26 CEST 2012
140 - fix unintended xthread_create by intentionalising it :)
141
1424.17 Thu Oct 11 05:19:47 CEST 2012
143 - rename aio_fallocate to aio_allocate, to match documentation.
144 - add list of linux fsid values to aio_statvfs docs.
145 - work around a bug in btrfs' FIEMAP ioctl implementation.
146 - work around AIX bug: statvfs.f_fsid is a struct, not unsigned long
147 as per unix spec.
148
1494.16 Tue Aug 14 05:39:03 CEST 2012
150 - aio_statvfs was wromgly marked for wd emulation, causing
151 it to malfunction for paths.
152 - fix a crash in aio_fiemap, when used on ranges without any
153 extents.
154 - work around linux kernel bug (at least in 3.2): kernel might
155 trash fiemap input arguments.
156 - work around linux kernel bug (at least in 3.2): kernel does not
157 set FIEMAP_EXTENT_LAST on last segment.
158 - work around linux kernel bug (at least in 3.2): kernel silently
159 truncates segment count if a file.
160 - make fh argument of IO::AIO::mmap optional, also add mmap/munmap
161 to quick overview.
162 - splice can corrupt data.
163 - (libeio) remove pread/pwrite emulation.
164 - do not grow mmaped scalars in aio_read.
165 - add FALLOC_FL_PUNCH_HOLE and document fallocate.
166 - provide pread/pwrite for win32, making it link again on native win32.
167
1684.15 Tue Apr 10 06:59:00 CEST 2012
169 - always include linux/types.h for fiemap, for compatibility to
170 ancient systems (Paul Howarth).
171 - experimental support for IO::AIO::splice and ::tee (no aio_...).
172 - provide SEEK_HOLE and SEEK_DATA, if available.
173 - work around (again!) an immensely stupid bug in RHEL, defining
174 autoconf macros in linux system headers (analysed by Paul Howarth).
175
1764.14 Sat Apr 7 02:45:18 CEST 2012
177 - fix stat structure usage on windows, which caused bogus stat results.
178 - (libeio) make readahead emulation behave more like actual readahead by never failing.
179 - new request aio_seek.
180 - new request aio_fiemap.
181 - autogenerate the #ifdef/#define 0 blocks for symbols we export.
182
1834.12 Fri Dec 30 08:51:25 CET 2011
184 - realpath would return a random value if the name was too long,
185 instead of -1.
186 - port to c89.
187
1884.11 Mon Oct 10 00:24:11 CEST 2011
189 - libeio didn't compile on !linux (Paul Howarth).
190
1914.1 Sun Oct 9 10:24:11 CEST 2011
192 - IO::AIO did access uninitialised memory on unsuccessful stats.
193 - (libeio) added syncfs syscall wrapper.
194 - (libeio) set thread name on linux (ps -L/Hcx, top, gdb).
195 - (libeio) support multiple indepenent working directories.
196 - applied speling corrections by Nicholas Bamber.
197 - tune treescan #threads and #outstanding requests a bit.
198 - reduce the number of file descriptors in use at any one time
199 in treescan, to avoid running out of them (and using too much ram).
200 - take advantage of working directoriy abstractions
201 in aio_scandir and treescan.
202 - reduce compiled size by ~10% by not inlining some key functionality.
203 - added --progress switch to treescan.
204
2054.0 Mon Jul 18 05:01:10 CEST 2011
206 - INCOMPATIBLE CHANGE: fork is no longer supported (indeed, it never was),
207 see FORK BEHAVIOUR in manpage for details.
208 - passes testsuite on win32 now and may actually work
209 (activestate 5.10.1 / MSVC6, YMMV).
210 - (libeio) fix a deadlock where a wakeup signal could be missed when
211 a timeout occured at the same time.
212 - (libeio) added realpath.
213 - (libeio) added fallocate.
214 - (libeio) disabling sendfile on darwin unfortunately broke the emulation.
215 - (libeio) do not acquire any locks when forking.
216 - (libeio) use fewer time() syscalls when waiting for new requests.
217
2183.93 Wed Jun 29 23:44:18 CEST 2011
219 - ECB.H WAS MISSING.
220
2213.92 Wed Jun 29 14:45:41 CEST 2011
222 - ecb.h was missing.
223
2243.91 Wed Jun 29 13:24:42 CEST 2011
225 - (libeio) work around a Linux (and likely FreeBSD and other
226 kernels) bug where sendfile would not transfer all the requested
227 bytes on large transfers, using a heuristic.
228 - buggy sendfile caused aio_move/copy to sometimes fail for big
229 files (fortunately it checks that the whole file has been
230 transferred...)
231 - use libecb for higher performance and higher portability.
232 - (libeio) disable sendfile on darwin, it's too broken.
233 - disable fork tests on !linux, as only linux supports mixing
234 pthread and fork in perl.
235 - document the fact that fork doesn't work anymore when using
236 this module, on anything !GNU/Linux.
237 - increase timeout in t/04_fork.t, as too many CPAN-tester setups
238 run on a 0.1MHz cpu. Or so.
239
2403.9 Fri May 27 02:43:47 CEST 2011
241 - (libeio) fix memory corruption in aio_readdirx for the flags
242 combination READDIR_STAT_ORDER | READDIR_DIRS_FIRST.
243 - add lots of newer POSIX and GNU/Linux-specific open
244 flags.
245
2463.8 Sun Mar 27 12:25:33 CEST 2011
247 - use nonstandard but maybe-working-on-bsd fork technique.
248 - support a max_idle value of 0.
249 - support setting of idle timeout value (IO::AIO::idle_timeout).
250
2513.72 Fri Feb 11 04:25:38 CET 2011
252 - use _POSIX_MEMLOCK_RANGE to detect mlock/munlock.
253 - aio_mknod always used a dev_t value of 0.
254 - new treescan option: --grep.
255 - add more S_IF macros, and major/minor/makedev "macros".
256
2573.71 Thu Dec 30 08:18:46 CET 2010
258 - the numerical result value passed to callbacks did not stringify
259 correctly, due to internal reuse and failure to reset the sv flags.
260 - actually test for posix_[mf]advise, as at least uClibc defines
261 _POSIX_ADVISORY_INFO without actually having any of the required
262 funcitonality. ugh.
263
2643.7 Mon Nov 1 23:00:34 CET 2010
265 - implement/add madvise, mmap, munmap, aio_mlockall, munlockall,
266 aio_mlock, munlock, msync and mtouch to @EXPORT_OK.
267 - document the sad state of affairs w.r.t. pthread on many bsds.
268 - do not enable mmap on systems without _POSIX_MAPPED_FILES
269 (openbsd 4.8).
270 - do not leak memory in IO::AIO::mmap when the scalar already
271 had string-data.
272 - add O_RDWR, O_APPEND and O_EXCL symbols and semi-document
273 them.
274 - cache the result IV, for a minor speedup in the common case.
275 - croak when an mmapped-scalar changes location, to detect
276 user-errors better.
277 - fix aio_readlink prototype.
278
2793.65 Wed Mar 31 02:45:05 CEST 2010
280 - actually use PATH_MAX instead of NAME_MAX for readlink, as to not
281 cut off long pathnames in aio_readlink (based on patch by
282 Rasmus Andersson).
283 - a double fork partially killed the event pipe (great testcase
284 by dormando). affects IO::AIO, BDB and Async::Interrupt.
285 - suck steve's dick and rename our symbols to avoid colliding
286 with nonstandard identifier spam on the broken os x pseudo-os.
287 affects IO::AIO and BDB.
288
2893.6 Mon Jan 11 00:43:39 CET 2010
290 - (libeio) more fixes for the freebsd/apple sendfile - broken by
291 manpage standards, but apparently correct accoridng to actual
292 kernel sources.
293 - add IO::AIO::mmap/munmap support.
294 - add IO::AIO::m(un)lockall support.
295 - clean up manpage.
296
2973.5 Thu Jan 7 21:25:04 CET 2010
298 - (liebio) fix freebsd sendfile (Vanilla Hsu).
299 - (libeio) also fix darwin sendfile that suffered from a similar bug.
300 - add aio_statvfs as interface to statvfs/fstatvfs.
301 - work around buggy symlink() on cygwin in the testsuite.
302 - wtf. freebsd-8.0 actually passes the testsuite! I knew
303 they could implement fork and semaphores one day! cheers!
304
3053.4 Sat Jan 2 15:13:04 CET 2010
306 - (libeio) max_poll_time was not properly converted to ticks.
307 - clarify cancel_subs description.
308 - IO::AIO::sendfile did not actually return the return value
309 from the sendfile call.
310 - implement aio_msync, aio_mtouch.
311 - (libeio) tentatively support darwin in sendfile.
312
3133.31 Thu Nov 12 02:14:29 CET 2009
314 - fix result status documentation of aio_copy, aio_move.
315 - speed up object creation considerably by avoiding
316 hash lookups.
317
3183.3 Wed Aug 5 13:52:58 CEST 2009
319 - use common::sense.
320 - use common schmorp.h header.
321 - allow integers (file descriptors) in addition to file handles.
322 - take advantage of linux' eventfd (but it seems slower on smp?).
323 - use poll not select on posix platforms.
324
3253.261 Wed Jul 1 10:11:51 CEST 2009
326 - more 0S X workarounds (patch by Tokuhiro Matsuno).
327
3283.26 Tue Jun 30 09:33:26 CEST 2009
329 - 0S X of course claims to be posix 2008 but lacks posix_fadvise.
330 try to work around this horribly broken OS in a somewhat hackish
331 way. might help other os's too.
332
3333.25 Sat Jun 27 05:18:26 CEST 2009
334 - added IO::AIO::fadvise and IO::AIO::sendfile.
335 - (libeio) replaced quicksort+insertion sort by a tuned radix
336 sort + insertion sort, resulting in comparable runtime (usually
337 faster) to the old version, but without any ill side effects on
338 degenerated (for quicksort) data.
339 - (libeio) correctly sort dirs by inodes if we have perfect type
340 knowledge and DIRS_FIRST is used.
341 - (libeio) internally the wrong DT_* constants were used, but no
342 known system has differing EIO_DT_*/DT_* values, so not an issue.
343 - removed a (harmless) assert that was left over on the code
344 but should not have been.
345 - use more correct types (change IO length from IV to VAL64,
346 which makes a difference on systems without 64 bit perls).
347
3483.23 Sat Jun 13 16:57:58 CEST 2009
349 - fix off-by-one bug in aio_readdir that was introduced in the
350 rushed 3.22 release.
351
3523.22 Sat Jun 13 15:32:40 CEST 2009
353 - speed up readdirx sort algorithm slightly.
354 - bin/treescan was missing from distro tarball.
355
3563.21 Fri Jun 12 18:45:53 CEST 2009
357 - new options --dirs and --files for treescan.
358 - install bin/treescan by default.
359 - (libeio) aio_readdir can now be cancelled while executing.
360 - fix a printf format string for 64 bit systems (could lead
361 to problems on big endian 64 bit systems).
362 - do not use qsort() but our own algorithm: glibc initialises
363 the whole locale and I/O subsystem inside qsort, causing
364 a stack overflow on 32 bit machines. The new sort uses much less
365 stack and is more than twice as fast in typical situations.
8 366
93.2 Sun Jun 7 20:30:05 CEST 2009 3673.2 Sun Jun 7 20:30:05 CEST 2009
10 - (libeio) pwrite emulation was even more flawed than intended and did 368 - (libeio) pwrite emulation was even more flawed than intended and did
11 not restore the file offset. 369 not restore the file offset.
12 - add aio_readdirx, which can return inode and filetype and sort 370 - add aio_readdirx, which can return inode and filetype and sort

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