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Comparing IO-AIO/Changes (file contents):
Revision 1.142 by root, Sat Apr 26 12:00:23 2008 UTC vs.
Revision 1.314 by root, Fri Jan 24 23:46:17 2014 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
15http://stackoverflow.com/questions/65170/how-to-get-name-associated-with-open-handle/5286888#5286888
16http://blogs.msdn.com/b/adioltean/archive/2005/04/16/408947.aspx
17http://msdn.microsoft.com/en-us/library/aa366789%28v=vs.85%29.aspx
18http://msdn.microsoft.com/en-us/library/windows/desktop/aa366789%28v=vs.85%29.aspx
19http://msdn.microsoft.com/en-us/library/windows/desktop/aa364425%28v=vs.85%29.aspx
20http://msdn.microsoft.com/en-us/library/windows/desktop/aa364963%28v=vs.85%29.aspx
21http://msdn.microsoft.com/en-us/library/windows/desktop/aa364996%28v=vs.85%29.aspx
22http://msdn.microsoft.com/en-us/library/windows/desktop/aa364994%28v=vs.85%29.aspx
23
24TODO: extra socket/tcp constants &c?
25TODO: take permission denied into account in treescan
26 - aio_group could corrupt memory because it didn't restore
27 the stack after req_submit.
28 - work around changes in ExtUtils::MakeMaker.
29 - (libeio) implement aio_realpath for win32.
30 - (xthread) work around compile time bugs in ptw32.
31 - added IO::AIO::pipesize.
32 - (libecb) insignificant update.
33
344.19 Sun Jan 6 12:47:26 CET 2013
35 - avoid endless loop in fiemap with some XFS files.
36 - in aio_rename and aio_rmdir, specialcase the case of [$wd, "."]
37 and call rename/rmdir instead of renameat/unlinkat.
38
394.18 Thu Oct 11 07:01:26 CEST 2012
40 - fix unintended xthread_create by intentionalising it :)
41
424.17 Thu Oct 11 05:19:47 CEST 2012
43 - rename aio_fallocate to aio_allocate, to match documentation.
44 - add list of linux fsid values to aio_statvfs docs.
45 - work around a bug in btrfs' FIEMAP ioctl implementation.
46 - work around AIX bug: statvfs.f_fsid is a struct, not unsigned long
47 as per unix spec.
48
494.16 Tue Aug 14 05:39:03 CEST 2012
50 - aio_statvfs was wromgly marked for wd emulation, causing
51 it to malfunction for paths.
52 - fix a crash in aio_fiemap, when used on ranges without any
53 extents.
54 - work around linux kernel bug (at least in 3.2): kernel might
55 trash fiemap input arguments.
56 - work around linux kernel bug (at least in 3.2): kernel does not
57 set FIEMAP_EXTENT_LAST on last segment.
58 - work around linux kernel bug (at least in 3.2): kernel silently
59 truncates segment count if a file.
60 - make fh argument of IO::AIO::mmap optional, also add mmap/munmap
61 to quick overview.
62 - splice can corrupt data.
63 - (libeio) remove pread/pwrite emulation.
64 - do not grow mmaped scalars in aio_read.
65 - add FALLOC_FL_PUNCH_HOLE and document fallocate.
66 - provide pread/pwrite for win32, making it link again on native win32.
67
684.15 Tue Apr 10 06:59:00 CEST 2012
69 - always include linux/types.h for fiemap, for compatibility to
70 ancient systems (Paul Howarth).
71 - experimental support for IO::AIO::splice and ::tee (no aio_...).
72 - provide SEEK_HOLE and SEEK_DATA, if available.
73 - work around (again!) an immensely stupid bug in RHEL, defining
74 autoconf macros in linux system headers (analysed by Paul Howarth).
75
764.14 Sat Apr 7 02:45:18 CEST 2012
77 - fix stat structure usage on windows, which caused bogus stat results.
78 - (libeio) make readahead emulation behave more like actual readahead by never failing.
79 - new request aio_seek.
80 - new request aio_fiemap.
81 - autogenerate the #ifdef/#define 0 blocks for symbols we export.
82
834.12 Fri Dec 30 08:51:25 CET 2011
84 - realpath would return a random value if the name was too long,
85 instead of -1.
86 - port to c89.
87
884.11 Mon Oct 10 00:24:11 CEST 2011
89 - libeio didn't compile on !linux (Paul Howarth).
90
914.1 Sun Oct 9 10:24:11 CEST 2011
92 - IO::AIO did access uninitialised memory on unsuccessful stats.
93 - (libeio) added syncfs syscall wrapper.
94 - (libeio) set thread name on linux (ps -L/Hcx, top, gdb).
95 - (libeio) support multiple indepenent working directories.
96 - applied speling corrections by Nicholas Bamber.
97 - tune treescan #threads and #outstanding requests a bit.
98 - reduce the number of file descriptors in use at any one time
99 in treescan, to avoid running out of them (and using too much ram).
100 - take advantage of working directoriy abstractions
101 in aio_scandir and treescan.
102 - reduce compiled size by ~10% by not inlining some key functionality.
103 - added --progress switch to treescan.
104
1054.0 Mon Jul 18 05:01:10 CEST 2011
106 - INCOMPATIBLE CHANGE: fork is no longer supported (indeed, it never was),
107 see FORK BEHAVIOUR in manpage for details.
108 - passes testsuite on win32 now and may actually work
109 (activestate 5.10.1 / MSVC6, YMMV).
110 - (libeio) fix a deadlock where a wakeup signal could be missed when
111 a timeout occured at the same time.
112 - (libeio) added realpath.
113 - (libeio) added fallocate.
114 - (libeio) disabling sendfile on darwin unfortunately broke the emulation.
115 - (libeio) do not acquire any locks when forking.
116 - (libeio) use fewer time() syscalls when waiting for new requests.
117
1183.93 Wed Jun 29 23:44:18 CEST 2011
119 - ECB.H WAS MISSING.
120
1213.92 Wed Jun 29 14:45:41 CEST 2011
122 - ecb.h was missing.
123
1243.91 Wed Jun 29 13:24:42 CEST 2011
125 - (libeio) work around a Linux (and likely FreeBSD and other
126 kernels) bug where sendfile would not transfer all the requested
127 bytes on large transfers, using a heuristic.
128 - buggy sendfile caused aio_move/copy to sometimes fail for big
129 files (fortunately it checks that the whole file has been
130 transferred...)
131 - use libecb for higher performance and higher portability.
132 - (libeio) disable sendfile on darwin, it's too broken.
133 - disable fork tests on !linux, as only linux supports mixing
134 pthread and fork in perl.
135 - document the fact that fork doesn't work anymore when using
136 this module, on anything !GNU/Linux.
137 - increase timeout in t/04_fork.t, as too many CPAN-tester setups
138 run on a 0.1MHz cpu. Or so.
139
1403.9 Fri May 27 02:43:47 CEST 2011
141 - (libeio) fix memory corruption in aio_readdirx for the flags
142 combination READDIR_STAT_ORDER | READDIR_DIRS_FIRST.
143 - add lots of newer POSIX and GNU/Linux-specific open
144 flags.
145
1463.8 Sun Mar 27 12:25:33 CEST 2011
147 - use nonstandard but maybe-working-on-bsd fork technique.
148 - support a max_idle value of 0.
149 - support setting of idle timeout value (IO::AIO::idle_timeout).
150
1513.72 Fri Feb 11 04:25:38 CET 2011
152 - use _POSIX_MEMLOCK_RANGE to detect mlock/munlock.
153 - aio_mknod always used a dev_t value of 0.
154 - new treescan option: --grep.
155 - add more S_IF macros, and major/minor/makedev "macros".
156
1573.71 Thu Dec 30 08:18:46 CET 2010
158 - the numerical result value passed to callbacks did not stringify
159 correctly, due to internal reuse and failure to reset the sv flags.
160 - actually test for posix_[mf]advise, as at least uClibc defines
161 _POSIX_ADVISORY_INFO without actually having any of the required
162 funcitonality. ugh.
163
1643.7 Mon Nov 1 23:00:34 CET 2010
165 - implement/add madvise, mmap, munmap, aio_mlockall, munlockall,
166 aio_mlock, munlock, msync and mtouch to @EXPORT_OK.
167 - document the sad state of affairs w.r.t. pthread on many bsds.
168 - do not enable mmap on systems without _POSIX_MAPPED_FILES
169 (openbsd 4.8).
170 - do not leak memory in IO::AIO::mmap when the scalar already
171 had string-data.
172 - add O_RDWR, O_APPEND and O_EXCL symbols and semi-document
173 them.
174 - cache the result IV, for a minor speedup in the common case.
175 - croak when an mmapped-scalar changes location, to detect
176 user-errors better.
177 - fix aio_readlink prototype.
178
1793.65 Wed Mar 31 02:45:05 CEST 2010
180 - actually use PATH_MAX instead of NAME_MAX for readlink, as to not
181 cut off long pathnames in aio_readlink (based on patch by
182 Rasmus Andersson).
183 - a double fork partially killed the event pipe (great testcase
184 by dormando). affects IO::AIO, BDB and Async::Interrupt.
185 - suck steve's dick and rename our symbols to avoid colliding
186 with nonstandard identifier spam on the broken os x pseudo-os.
187 affects IO::AIO and BDB.
188
1893.6 Mon Jan 11 00:43:39 CET 2010
190 - (libeio) more fixes for the freebsd/apple sendfile - broken by
191 manpage standards, but apparently correct accoridng to actual
192 kernel sources.
193 - add IO::AIO::mmap/munmap support.
194 - add IO::AIO::m(un)lockall support.
195 - clean up manpage.
196
1973.5 Thu Jan 7 21:25:04 CET 2010
198 - (liebio) fix freebsd sendfile (Vanilla Hsu).
199 - (libeio) also fix darwin sendfile that suffered from a similar bug.
200 - add aio_statvfs as interface to statvfs/fstatvfs.
201 - work around buggy symlink() on cygwin in the testsuite.
202 - wtf. freebsd-8.0 actually passes the testsuite! I knew
203 they could implement fork and semaphores one day! cheers!
204
2053.4 Sat Jan 2 15:13:04 CET 2010
206 - (libeio) max_poll_time was not properly converted to ticks.
207 - clarify cancel_subs description.
208 - IO::AIO::sendfile did not actually return the return value
209 from the sendfile call.
210 - implement aio_msync, aio_mtouch.
211 - (libeio) tentatively support darwin in sendfile.
212
2133.31 Thu Nov 12 02:14:29 CET 2009
214 - fix result status documentation of aio_copy, aio_move.
215 - speed up object creation considerably by avoiding
216 hash lookups.
217
2183.3 Wed Aug 5 13:52:58 CEST 2009
219 - use common::sense.
220 - use common schmorp.h header.
221 - allow integers (file descriptors) in addition to file handles.
222 - take advantage of linux' eventfd (but it seems slower on smp?).
223 - use poll not select on posix platforms.
224
2253.261 Wed Jul 1 10:11:51 CEST 2009
226 - more 0S X workarounds (patch by Tokuhiro Matsuno).
227
2283.26 Tue Jun 30 09:33:26 CEST 2009
229 - 0S X of course claims to be posix 2008 but lacks posix_fadvise.
230 try to work around this horribly broken OS in a somewhat hackish
231 way. might help other os's too.
232
2333.25 Sat Jun 27 05:18:26 CEST 2009
234 - added IO::AIO::fadvise and IO::AIO::sendfile.
235 - (libeio) replaced quicksort+insertion sort by a tuned radix
236 sort + insertion sort, resulting in comparable runtime (usually
237 faster) to the old version, but without any ill side effects on
238 degenerated (for quicksort) data.
239 - (libeio) correctly sort dirs by inodes if we have perfect type
240 knowledge and DIRS_FIRST is used.
241 - (libeio) internally the wrong DT_* constants were used, but no
242 known system has differing EIO_DT_*/DT_* values, so not an issue.
243 - removed a (harmless) assert that was left over on the code
244 but should not have been.
245 - use more correct types (change IO length from IV to VAL64,
246 which makes a difference on systems without 64 bit perls).
247
2483.23 Sat Jun 13 16:57:58 CEST 2009
249 - fix off-by-one bug in aio_readdir that was introduced in the
250 rushed 3.22 release.
251
2523.22 Sat Jun 13 15:32:40 CEST 2009
253 - speed up readdirx sort algorithm slightly.
254 - bin/treescan was missing from distro tarball.
255
2563.21 Fri Jun 12 18:45:53 CEST 2009
257 - new options --dirs and --files for treescan.
258 - install bin/treescan by default.
259 - (libeio) aio_readdir can now be cancelled while executing.
260 - fix a printf format string for 64 bit systems (could lead
261 to problems on big endian 64 bit systems).
262 - do not use qsort() but our own algorithm: glibc initialises
263 the whole locale and I/O subsystem inside qsort, causing
264 a stack overflow on 32 bit machines. The new sort uses much less
265 stack and is more than twice as fast in typical situations.
266
2673.2 Sun Jun 7 20:30:05 CEST 2009
268 - (libeio) pwrite emulation was even more flawed than intended and did
269 not restore the file offset.
270 - add aio_readdirx, which can return inode and filetype and sort
271 the names in various ways.
272 - unfortunately, utime, chmod, chown on an open file that has just
273 been written can easily block, which caused aio_copy to block the
274 process. no more!
275 - no longer rely on dst path in aio_copy when futime is available.
276
2773.19 Tue Apr 21 22:05:21 CEST 2009
278 - more perl 5.10 workarounds for aio_read and write.
279 - aio_write no longer modifies the sv (if possible).
280 - aio_read now works correctly with magic values.
281
2823.18 Sun Apr 19 21:17:32 CEST 2009
283 - better diagnostics when some aio_* functions get passed an illegal fh.
284 - try to avoid crashes due to incompatible 5.10 API changes. grmbl.
285
2863.17 Thu Nov 20 08:45:36 CET 2008
287 - (libeio) added aio_sync_file_range (untested).
288 - add aio_busy to @IO::AIO::AIO_REQ.
289
2903.16 Wed Oct 22 18:28:01 CEST 2008
291 - use SvREFCNT_inc instead of SvREFCNT_inc_NN in a non-speed critical
292 part to improve portability to perl 5.8 (reported by szymon).
293
2943.15 Mon Oct 13 00:39:55 CEST 2008
295 - automatic removal of feeders was broken.
296 - (libeio) use a more robust method to detect whether a feeder
297 has added something to the group or not.
298
2993.1 Thu Oct 2 13:34:40 CEST 2008
300 - pre-deref the passed callback object, for increased speed
301 and decreased memory usage.
302 - call on_next_submit callback even for aio_group - impact unknown,
303 but seems more correct.
304 - $req->cb now returns the original callback.
305 - (libeio) pass EIO_GROUP/aio_group requests through the queue without
306 requiring a thread switch.
307 - (libeio) status code of aio_futime and aio_utime was always passed 0.
308 - do some other ยต-optimisations.
309
3103.07 Sat Aug 2 16:06:13 CEST 2008
311 - do not include LIBS in autoconf tests.
312
3133.06 Tue Jul 15 12:41:32 CEST 2008
314 - move preadwritelock definition before it's first reference,
315 to make it compile again on broken platforms (they still exist)
316 or badly cofngiured perls (redhat...), reported by Rob Bloodgood.
317
3183.05 Thu Jun 19 23:23:52 CEST 2008
319 - work around perl overriding readdir etc. with thread-unsafe
320 (sic!) versions.
321
3223.04 Wed Jun 18 01:35:38 CEST 2008
323 - (libeio) fix eio_mknod, which confused it's arguments.
324 - (libeio) do not use readdir_r, as Ulrich Drepper pointed out that this
325 is stupid.
326 - (libeio) fix eio__readahead prototype, patch by Jost Krieger.
327 - (libeio) fix a bug that could potentially cause IO::AIO
328 not to get initialised properly.
329
3303.03 Thu May 29 05:33:30 CEST 2008
331 - (libeio) correctly call pthread_attr_destroy ().
332 - (libeio) work around broken bsd headers once more.
333 - reduce shared library size again by not including wrappers.
334 - max_outstanding could cause poll to enter a busy-waiting loop.
335 - document the new IO::AIO::poll_cb result value.
336
3373.02 Mon May 12 02:32:02 CEST 2008
338 - fix a memory leak on aio_readlink.
339 - bring back working fchmod.
340 - nop and busy now set result to 0.
341 - set errno to ENOMEM when allocation fails.
342
3433.01 Sun May 11 03:07:03 CEST 2008
344 - (libeio) make it compile on systems without readahead or readdir_r.
345 - (libeio) improve configure check for readahead availability.
346 - do not try to link against -lrt.
347 - use a separate configure script for IO::AIO (not the libeio one).
348
3493.0 Sun May 11 00:57:14 CEST 2008
350 - added bin/treescan to the distribution.
351 - switched to using libeio.
352 - LOTS OF INCOMPATIBLE CHANGES:
353 - remove signal functionality, it is not worth the effort.
354 - max_outstanding no longer returns the previous number of requests.
355 - poll_cb no longer returns number of requests.
8 356
92.62 Sat Apr 26 13:59:33 CEST 2008 3572.62 Sat Apr 26 13:59:33 CEST 2008
10 - port to solaris perls configured for old posix 358 - port to solaris perls configured for old posix
11 (analysed by Jost Krieger). 359 (analysed by Jost Krieger).
12 - keep a reference to the perl filehandle object in aio_close, 360 - keep a reference to the perl filehandle object in aio_close,

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