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Comparing IO-AIO/Changes (file contents):
Revision 1.197 by root, Wed Jun 17 06:33:07 2009 UTC vs.
Revision 1.369 by root, Sat Aug 25 19:25:32 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
103.25 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
40
41 - add st_btime, st_btimesec, st_btimensec and st_gen accessors,
42 mostly for bsds which expose birthtime and st_gen members (netbsd, freebsd
43 but only st_gen on openbsd because they compiled their perl without support
44 for birthtimes).
45 - fix madvise and munlock to properly support negative offsets.
46 - allocate fd for the aio_close at boot time, to guarantee it working
47 later, rather than calling abort when it fails. also avoids
48 close-on-exec race issues after module load.
49 - #undef utime on win32, maybe this helps some reports of utime hangs.
50 - minor doc improvements.
51 - minor configure cleanups.
52
534.54 Tue Aug 14 13:54:48 CEST 2018
54 - include sys/mkdev.h or sys/sysmacros.h if available.
55 - further tweaks to configure invocation for systems requiring --rpath.
56 - no longer rely on custom paths on win32 platforms.
57 - try to work around buggy PAGESIZE macro on solaris.
58
594.53 Tue Aug 14 11:27:50 CEST 2018
60 - add $Config{libs} to LIBS for configure, to work around systems
61 with broken library dependencies (... openbsd).
62
634.52 Sun Aug 12 08:09:45 CEST 2018
64 - config.h.in was missing in distribution.
65
664.51 Sun Aug 12 07:24:14 CEST 2018
67 - complete rework of the autoconf framework: IO::AIO now uses its own
68 config.h, separate from libeio, and tries to test the actual perl
69 environment, not the standard system environment.
70 - provide nanosecond-accracy stat time accessors for both perl and IO::AIO
71 stat functions.
72 - removed non-portable C++ syntax from eio.c.
73 - try to fix readdir tests on cygwin spuriously failing.
74
754.5 Wed Aug 1 00:23:55 CEST 2018
76 - aio_mtouch touch all pages as requested, not just the first page in most cases.
77 - new function: IO::AIO::mremap, linux-specific mremap, with constants MREMAP_MAYMOVE
78 and MREMAP_FIXED.
79 - add O_ACCMODE.
80 - add (undocumented) MSG_CMSG_CLOEXEC and SOCK_CLOEXEC constants.
81
824.4 Tue Feb 20 07:54:12 CET 2018
83 - new aio_slurp request.
84 - add (experimental) IO::AIO::eventfd and timerfd* function.
85 - add (experimental) IO::AIO::get_fdlimit and IO::AIO::min_fdlimit.
86 - point out that aio_copy overwrites existing files.
87 - removed filesystem magic number table from aio_statvfs docs as
88 statvfs doesn't actually return this info at all (statfs does).
89 - add a bunch of (mostly linux-specific) constants for use in ioctls
90 (see aio_ioctl docs).
91 - treescan now has a proper manpage and useful --help output.
92 - new option --sync in treescan, to sync everything in a subtree.
93 - changed default for aio_msync flags to MSYNC_SYNC.
94 - document offset/length behaviour of mprotect/madvise.
95 - support linux's renameat2 (via aio_rename2).
96 - add aio_rename2, an aio_rename with flags.
97 - add F_DUPPFD_CLOEXEC, F_OFD_[SG]ETLKW? constants.
98 - add FALLOC_FL_INSERT_RANGE, FALLOC_FL_UNSHARE_RANGE.
99 - (libeio) use posix_close if available.
100 - (libeio) internal close() calls no longer disturb errno.
101 - add IO:AIO::FALLOC_FL_UNSHARE.
102 - update schmorp.h for removal of USE_SOCKETS_AS_HANDLES
103 and better eventfd detection.
104
1054.34 Sun May 1 19:18:24 CEST 2016
106 - def0.h was not properly generated during previous release, causing
107 compile errors on various platforms.
108 - major/minor were accidentally switched (reported by Alexander Lishenyuk).
109 - removed duplicate definition of MAP_HUGETLB, that was found due to
110 a bug in Perl::Tidy (testcase by alaska332@gmail.com).
111 - added (untested!) aio_fcntl, aio_ioctl requests.
112 - (libeio) names set via prctl are truncated to 15 chars + nul, not 16,
113 as manpages-dev originally claimed.
114
1154.33 Mon Jan 18 12:50:10 CET 2016
116 - add IO::AIO::pipe2 function.
117 - added support for FALLOC_FL_COLLAPSE_RANGE and FALLOC_FL_ZERO_RANGE
118 constants.
119 - added support for O_TMPFILE and O_PATH constants.
120 - added support for MAP_FIXED, MAP_GROWSDOWN,MAP_32BIT, MAP_HUGETLB, MAP_STACK
121 consdtants, whether they can be sensibly used or not.
122 - use NO_INIT where applicable.
123 - update libecb.
124 - added stability canary support.
125 - updated linux super magic table to 4.3.3.
126
1274.32 Wed Feb 11 20:32:11 CET 2015
128 - replace off_t by STRLEN where appropriate, should not result in
129 user-visible changes.
130 - update ecb.h for C11 compatibility.
131
1324.31 Tue Jun 3 03:29:27 CEST 2014
133 - work around more 5.20 bugs. backwards compatibility my ass.
134
1354.3 Fri Apr 11 06:22:38 CEST 2014
136 - perl5porters broke Async::Interrupt, BDB, EV, IO::AIO, OpenCL
137 without warning by switching the meaning of USE_SOCKETS_AS_HANDLES
138 in 5.18. What's so attractive about giving a shit about backwards
139 compatibility - I will never understand.
140
1414.2 Sat Jan 25 01:13:14 CET 2014
142 - aio_group could corrupt memory because it didn't restore
143 the stack after req_submit.
144 - be more careful on (e.g. permission) errors in bin/treescan.
145 - work around changes in ExtUtils::MakeMaker.
146 - (libeio) implement aio_realpath for win32.
147 - (xthread) work around compile time bugs in ptw32.
148 - added IO::AIO::pipesize.
149 - (libecb) insignificant update.
150
1514.19 Sun Jan 6 12:47:26 CET 2013
152 - avoid endless loop in fiemap with some XFS files.
153 - in aio_rename and aio_rmdir, specialcase the case of [$wd, "."]
154 and call rename/rmdir instead of renameat/unlinkat.
155
1564.18 Thu Oct 11 07:01:26 CEST 2012
157 - fix unintended xthread_create by intentionalising it :)
158
1594.17 Thu Oct 11 05:19:47 CEST 2012
160 - rename aio_fallocate to aio_allocate, to match documentation.
161 - add list of linux fsid values to aio_statvfs docs.
162 - work around a bug in btrfs' FIEMAP ioctl implementation.
163 - work around AIX bug: statvfs.f_fsid is a struct, not unsigned long
164 as per unix spec.
165
1664.16 Tue Aug 14 05:39:03 CEST 2012
167 - aio_statvfs was wromgly marked for wd emulation, causing
168 it to malfunction for paths.
169 - fix a crash in aio_fiemap, when used on ranges without any
170 extents.
171 - work around linux kernel bug (at least in 3.2): kernel might
172 trash fiemap input arguments.
173 - work around linux kernel bug (at least in 3.2): kernel does not
174 set FIEMAP_EXTENT_LAST on last segment.
175 - work around linux kernel bug (at least in 3.2): kernel silently
176 truncates segment count if a file.
177 - make fh argument of IO::AIO::mmap optional, also add mmap/munmap
178 to quick overview.
179 - splice can corrupt data.
180 - (libeio) remove pread/pwrite emulation.
181 - do not grow mmaped scalars in aio_read.
182 - add FALLOC_FL_PUNCH_HOLE and document fallocate.
183 - provide pread/pwrite for win32, making it link again on native win32.
184
1854.15 Tue Apr 10 06:59:00 CEST 2012
186 - always include linux/types.h for fiemap, for compatibility to
187 ancient systems (Paul Howarth).
188 - experimental support for IO::AIO::splice and ::tee (no aio_...).
189 - provide SEEK_HOLE and SEEK_DATA, if available.
190 - work around (again!) an immensely stupid bug in RHEL, defining
191 autoconf macros in linux system headers (analysed by Paul Howarth).
192
1934.14 Sat Apr 7 02:45:18 CEST 2012
194 - fix stat structure usage on windows, which caused bogus stat results.
195 - (libeio) make readahead emulation behave more like actual readahead by never failing.
196 - new request aio_seek.
197 - new request aio_fiemap.
198 - autogenerate the #ifdef/#define 0 blocks for symbols we export.
199
2004.12 Fri Dec 30 08:51:25 CET 2011
201 - realpath would return a random value if the name was too long,
202 instead of -1.
203 - port to c89.
204
2054.11 Mon Oct 10 00:24:11 CEST 2011
206 - libeio didn't compile on !linux (Paul Howarth).
207
2084.1 Sun Oct 9 10:24:11 CEST 2011
209 - IO::AIO did access uninitialised memory on unsuccessful stats.
210 - (libeio) added syncfs syscall wrapper.
211 - (libeio) set thread name on linux (ps -L/Hcx, top, gdb).
212 - (libeio) support multiple indepenent working directories.
213 - applied speling corrections by Nicholas Bamber.
214 - tune treescan #threads and #outstanding requests a bit.
215 - reduce the number of file descriptors in use at any one time
216 in treescan, to avoid running out of them (and using too much ram).
217 - take advantage of working directoriy abstractions
218 in aio_scandir and treescan.
219 - reduce compiled size by ~10% by not inlining some key functionality.
220 - added --progress switch to treescan.
221
2224.0 Mon Jul 18 05:01:10 CEST 2011
223 - INCOMPATIBLE CHANGE: fork is no longer supported (indeed, it never was),
224 see FORK BEHAVIOUR in manpage for details.
225 - passes testsuite on win32 now and may actually work
226 (activestate 5.10.1 / MSVC6, YMMV).
227 - (libeio) fix a deadlock where a wakeup signal could be missed when
228 a timeout occured at the same time.
229 - (libeio) added realpath.
230 - (libeio) added fallocate.
231 - (libeio) disabling sendfile on darwin unfortunately broke the emulation.
232 - (libeio) do not acquire any locks when forking.
233 - (libeio) use fewer time() syscalls when waiting for new requests.
234
2353.93 Wed Jun 29 23:44:18 CEST 2011
236 - ECB.H WAS MISSING.
237
2383.92 Wed Jun 29 14:45:41 CEST 2011
239 - ecb.h was missing.
240
2413.91 Wed Jun 29 13:24:42 CEST 2011
242 - (libeio) work around a Linux (and likely FreeBSD and other
243 kernels) bug where sendfile would not transfer all the requested
244 bytes on large transfers, using a heuristic.
245 - buggy sendfile caused aio_move/copy to sometimes fail for big
246 files (fortunately it checks that the whole file has been
247 transferred...)
248 - use libecb for higher performance and higher portability.
249 - (libeio) disable sendfile on darwin, it's too broken.
250 - disable fork tests on !linux, as only linux supports mixing
251 pthread and fork in perl.
252 - document the fact that fork doesn't work anymore when using
253 this module, on anything !GNU/Linux.
254 - increase timeout in t/04_fork.t, as too many CPAN-tester setups
255 run on a 0.1MHz cpu. Or so.
256
2573.9 Fri May 27 02:43:47 CEST 2011
258 - (libeio) fix memory corruption in aio_readdirx for the flags
259 combination READDIR_STAT_ORDER | READDIR_DIRS_FIRST.
260 - add lots of newer POSIX and GNU/Linux-specific open
261 flags.
262
2633.8 Sun Mar 27 12:25:33 CEST 2011
264 - use nonstandard but maybe-working-on-bsd fork technique.
265 - support a max_idle value of 0.
266 - support setting of idle timeout value (IO::AIO::idle_timeout).
267
2683.72 Fri Feb 11 04:25:38 CET 2011
269 - use _POSIX_MEMLOCK_RANGE to detect mlock/munlock.
270 - aio_mknod always used a dev_t value of 0.
271 - new treescan option: --grep.
272 - add more S_IF macros, and major/minor/makedev "macros".
273
2743.71 Thu Dec 30 08:18:46 CET 2010
275 - the numerical result value passed to callbacks did not stringify
276 correctly, due to internal reuse and failure to reset the sv flags.
277 - actually test for posix_[mf]advise, as at least uClibc defines
278 _POSIX_ADVISORY_INFO without actually having any of the required
279 funcitonality. ugh.
280
2813.7 Mon Nov 1 23:00:34 CET 2010
282 - implement/add madvise, mmap, munmap, aio_mlockall, munlockall,
283 aio_mlock, munlock, msync and mtouch to @EXPORT_OK.
284 - document the sad state of affairs w.r.t. pthread on many bsds.
285 - do not enable mmap on systems without _POSIX_MAPPED_FILES
286 (openbsd 4.8).
287 - do not leak memory in IO::AIO::mmap when the scalar already
288 had string-data.
289 - add O_RDWR, O_APPEND and O_EXCL symbols and semi-document
290 them.
291 - cache the result IV, for a minor speedup in the common case.
292 - croak when an mmapped-scalar changes location, to detect
293 user-errors better.
294 - fix aio_readlink prototype.
295
2963.65 Wed Mar 31 02:45:05 CEST 2010
297 - actually use PATH_MAX instead of NAME_MAX for readlink, as to not
298 cut off long pathnames in aio_readlink (based on patch by
299 Rasmus Andersson).
300 - a double fork partially killed the event pipe (great testcase
301 by dormando). affects IO::AIO, BDB and Async::Interrupt.
302 - suck steve's dick and rename our symbols to avoid colliding
303 with nonstandard identifier spam on the broken os x pseudo-os.
304 affects IO::AIO and BDB.
305
3063.6 Mon Jan 11 00:43:39 CET 2010
307 - (libeio) more fixes for the freebsd/apple sendfile - broken by
308 manpage standards, but apparently correct accoridng to actual
309 kernel sources.
310 - add IO::AIO::mmap/munmap support.
311 - add IO::AIO::m(un)lockall support.
312 - clean up manpage.
313
3143.5 Thu Jan 7 21:25:04 CET 2010
315 - (liebio) fix freebsd sendfile (Vanilla Hsu).
316 - (libeio) also fix darwin sendfile that suffered from a similar bug.
317 - add aio_statvfs as interface to statvfs/fstatvfs.
318 - work around buggy symlink() on cygwin in the testsuite.
319 - wtf. freebsd-8.0 actually passes the testsuite! I knew
320 they could implement fork and semaphores one day! cheers!
321
3223.4 Sat Jan 2 15:13:04 CET 2010
323 - (libeio) max_poll_time was not properly converted to ticks.
324 - clarify cancel_subs description.
325 - IO::AIO::sendfile did not actually return the return value
326 from the sendfile call.
327 - implement aio_msync, aio_mtouch.
328 - (libeio) tentatively support darwin in sendfile.
329
3303.31 Thu Nov 12 02:14:29 CET 2009
331 - fix result status documentation of aio_copy, aio_move.
332 - speed up object creation considerably by avoiding
333 hash lookups.
334
3353.3 Wed Aug 5 13:52:58 CEST 2009
336 - use common::sense.
337 - use common schmorp.h header.
338 - allow integers (file descriptors) in addition to file handles.
339 - take advantage of linux' eventfd (but it seems slower on smp?).
340 - use poll not select on posix platforms.
341
3423.261 Wed Jul 1 10:11:51 CEST 2009
343 - more 0S X workarounds (patch by Tokuhiro Matsuno).
344
3453.26 Tue Jun 30 09:33:26 CEST 2009
346 - 0S X of course claims to be posix 2008 but lacks posix_fadvise.
347 try to work around this horribly broken OS in a somewhat hackish
348 way. might help other os's too.
349
3503.25 Sat Jun 27 05:18:26 CEST 2009
11 - added IO::AIO::fadvise and IO::AIO::sendfile. 351 - added IO::AIO::fadvise and IO::AIO::sendfile.
12 - (libeio) replaced quicksort+insertion sort by a tuned radix 352 - (libeio) replaced quicksort+insertion sort by a tuned radix
13 sort + insertion sort, resulting in comparable runtime (usually 353 sort + insertion sort, resulting in comparable runtime (usually
14 faster) to the old version, but without any ill side effects on 354 faster) to the old version, but without any ill side effects on
15 degenerated (for quicksort) data. 355 degenerated (for quicksort) data.

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