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Comparing IO-AIO/Changes (file contents):
Revision 1.134 by root, Sun Dec 2 20:54:33 2007 UTC vs.
Revision 1.318 by root, Mon Aug 18 04:26:03 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: fix setsig
7TODO: 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
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
23TODO: extra socket/tcp constants &c?
8 24
92.6 25TODO: rewrite rmtree et al. to support working directories (also speed them up)
264.31 Tue Jun 3 03:29:27 CEST 2014
27 - work around more 5.20 bugs. backwards compatibility my ass.
28
294.3 Fri Apr 11 06:22:38 CEST 2014
30 - perl5porters broke Async::Interrupt, BDB, EV, IO::AIO, OpenCL
31 without warning by switching the meaning of USE_SOCKETS_AS_HANDLES
32 in 5.18. What's so attractive about giving a shit about backwards
33 compatibility - I will never understand.
34
354.2 Sat Jan 25 01:13:14 CET 2014
36 - aio_group could corrupt memory because it didn't restore
37 the stack after req_submit.
38 - be more careful on (e.g. permission) errors in bin/treescan.
39 - work around changes in ExtUtils::MakeMaker.
40 - (libeio) implement aio_realpath for win32.
41 - (xthread) work around compile time bugs in ptw32.
42 - added IO::AIO::pipesize.
43 - (libecb) insignificant update.
44
454.19 Sun Jan 6 12:47:26 CET 2013
46 - avoid endless loop in fiemap with some XFS files.
47 - in aio_rename and aio_rmdir, specialcase the case of [$wd, "."]
48 and call rename/rmdir instead of renameat/unlinkat.
49
504.18 Thu Oct 11 07:01:26 CEST 2012
51 - fix unintended xthread_create by intentionalising it :)
52
534.17 Thu Oct 11 05:19:47 CEST 2012
54 - rename aio_fallocate to aio_allocate, to match documentation.
55 - add list of linux fsid values to aio_statvfs docs.
56 - work around a bug in btrfs' FIEMAP ioctl implementation.
57 - work around AIX bug: statvfs.f_fsid is a struct, not unsigned long
58 as per unix spec.
59
604.16 Tue Aug 14 05:39:03 CEST 2012
61 - aio_statvfs was wromgly marked for wd emulation, causing
62 it to malfunction for paths.
63 - fix a crash in aio_fiemap, when used on ranges without any
64 extents.
65 - work around linux kernel bug (at least in 3.2): kernel might
66 trash fiemap input arguments.
67 - work around linux kernel bug (at least in 3.2): kernel does not
68 set FIEMAP_EXTENT_LAST on last segment.
69 - work around linux kernel bug (at least in 3.2): kernel silently
70 truncates segment count if a file.
71 - make fh argument of IO::AIO::mmap optional, also add mmap/munmap
72 to quick overview.
73 - splice can corrupt data.
74 - (libeio) remove pread/pwrite emulation.
75 - do not grow mmaped scalars in aio_read.
76 - add FALLOC_FL_PUNCH_HOLE and document fallocate.
77 - provide pread/pwrite for win32, making it link again on native win32.
78
794.15 Tue Apr 10 06:59:00 CEST 2012
80 - always include linux/types.h for fiemap, for compatibility to
81 ancient systems (Paul Howarth).
82 - experimental support for IO::AIO::splice and ::tee (no aio_...).
83 - provide SEEK_HOLE and SEEK_DATA, if available.
84 - work around (again!) an immensely stupid bug in RHEL, defining
85 autoconf macros in linux system headers (analysed by Paul Howarth).
86
874.14 Sat Apr 7 02:45:18 CEST 2012
88 - fix stat structure usage on windows, which caused bogus stat results.
89 - (libeio) make readahead emulation behave more like actual readahead by never failing.
90 - new request aio_seek.
91 - new request aio_fiemap.
92 - autogenerate the #ifdef/#define 0 blocks for symbols we export.
93
944.12 Fri Dec 30 08:51:25 CET 2011
95 - realpath would return a random value if the name was too long,
96 instead of -1.
97 - port to c89.
98
994.11 Mon Oct 10 00:24:11 CEST 2011
100 - libeio didn't compile on !linux (Paul Howarth).
101
1024.1 Sun Oct 9 10:24:11 CEST 2011
103 - IO::AIO did access uninitialised memory on unsuccessful stats.
104 - (libeio) added syncfs syscall wrapper.
105 - (libeio) set thread name on linux (ps -L/Hcx, top, gdb).
106 - (libeio) support multiple indepenent working directories.
107 - applied speling corrections by Nicholas Bamber.
108 - tune treescan #threads and #outstanding requests a bit.
109 - reduce the number of file descriptors in use at any one time
110 in treescan, to avoid running out of them (and using too much ram).
111 - take advantage of working directoriy abstractions
112 in aio_scandir and treescan.
113 - reduce compiled size by ~10% by not inlining some key functionality.
114 - added --progress switch to treescan.
115
1164.0 Mon Jul 18 05:01:10 CEST 2011
117 - INCOMPATIBLE CHANGE: fork is no longer supported (indeed, it never was),
118 see FORK BEHAVIOUR in manpage for details.
119 - passes testsuite on win32 now and may actually work
120 (activestate 5.10.1 / MSVC6, YMMV).
121 - (libeio) fix a deadlock where a wakeup signal could be missed when
122 a timeout occured at the same time.
123 - (libeio) added realpath.
124 - (libeio) added fallocate.
125 - (libeio) disabling sendfile on darwin unfortunately broke the emulation.
126 - (libeio) do not acquire any locks when forking.
127 - (libeio) use fewer time() syscalls when waiting for new requests.
128
1293.93 Wed Jun 29 23:44:18 CEST 2011
130 - ECB.H WAS MISSING.
131
1323.92 Wed Jun 29 14:45:41 CEST 2011
133 - ecb.h was missing.
134
1353.91 Wed Jun 29 13:24:42 CEST 2011
136 - (libeio) work around a Linux (and likely FreeBSD and other
137 kernels) bug where sendfile would not transfer all the requested
138 bytes on large transfers, using a heuristic.
139 - buggy sendfile caused aio_move/copy to sometimes fail for big
140 files (fortunately it checks that the whole file has been
141 transferred...)
142 - use libecb for higher performance and higher portability.
143 - (libeio) disable sendfile on darwin, it's too broken.
144 - disable fork tests on !linux, as only linux supports mixing
145 pthread and fork in perl.
146 - document the fact that fork doesn't work anymore when using
147 this module, on anything !GNU/Linux.
148 - increase timeout in t/04_fork.t, as too many CPAN-tester setups
149 run on a 0.1MHz cpu. Or so.
150
1513.9 Fri May 27 02:43:47 CEST 2011
152 - (libeio) fix memory corruption in aio_readdirx for the flags
153 combination READDIR_STAT_ORDER | READDIR_DIRS_FIRST.
154 - add lots of newer POSIX and GNU/Linux-specific open
155 flags.
156
1573.8 Sun Mar 27 12:25:33 CEST 2011
158 - use nonstandard but maybe-working-on-bsd fork technique.
159 - support a max_idle value of 0.
160 - support setting of idle timeout value (IO::AIO::idle_timeout).
161
1623.72 Fri Feb 11 04:25:38 CET 2011
163 - use _POSIX_MEMLOCK_RANGE to detect mlock/munlock.
164 - aio_mknod always used a dev_t value of 0.
165 - new treescan option: --grep.
166 - add more S_IF macros, and major/minor/makedev "macros".
167
1683.71 Thu Dec 30 08:18:46 CET 2010
169 - the numerical result value passed to callbacks did not stringify
170 correctly, due to internal reuse and failure to reset the sv flags.
171 - actually test for posix_[mf]advise, as at least uClibc defines
172 _POSIX_ADVISORY_INFO without actually having any of the required
173 funcitonality. ugh.
174
1753.7 Mon Nov 1 23:00:34 CET 2010
176 - implement/add madvise, mmap, munmap, aio_mlockall, munlockall,
177 aio_mlock, munlock, msync and mtouch to @EXPORT_OK.
178 - document the sad state of affairs w.r.t. pthread on many bsds.
179 - do not enable mmap on systems without _POSIX_MAPPED_FILES
180 (openbsd 4.8).
181 - do not leak memory in IO::AIO::mmap when the scalar already
182 had string-data.
183 - add O_RDWR, O_APPEND and O_EXCL symbols and semi-document
184 them.
185 - cache the result IV, for a minor speedup in the common case.
186 - croak when an mmapped-scalar changes location, to detect
187 user-errors better.
188 - fix aio_readlink prototype.
189
1903.65 Wed Mar 31 02:45:05 CEST 2010
191 - actually use PATH_MAX instead of NAME_MAX for readlink, as to not
192 cut off long pathnames in aio_readlink (based on patch by
193 Rasmus Andersson).
194 - a double fork partially killed the event pipe (great testcase
195 by dormando). affects IO::AIO, BDB and Async::Interrupt.
196 - suck steve's dick and rename our symbols to avoid colliding
197 with nonstandard identifier spam on the broken os x pseudo-os.
198 affects IO::AIO and BDB.
199
2003.6 Mon Jan 11 00:43:39 CET 2010
201 - (libeio) more fixes for the freebsd/apple sendfile - broken by
202 manpage standards, but apparently correct accoridng to actual
203 kernel sources.
204 - add IO::AIO::mmap/munmap support.
205 - add IO::AIO::m(un)lockall support.
206 - clean up manpage.
207
2083.5 Thu Jan 7 21:25:04 CET 2010
209 - (liebio) fix freebsd sendfile (Vanilla Hsu).
210 - (libeio) also fix darwin sendfile that suffered from a similar bug.
211 - add aio_statvfs as interface to statvfs/fstatvfs.
212 - work around buggy symlink() on cygwin in the testsuite.
213 - wtf. freebsd-8.0 actually passes the testsuite! I knew
214 they could implement fork and semaphores one day! cheers!
215
2163.4 Sat Jan 2 15:13:04 CET 2010
217 - (libeio) max_poll_time was not properly converted to ticks.
218 - clarify cancel_subs description.
219 - IO::AIO::sendfile did not actually return the return value
220 from the sendfile call.
221 - implement aio_msync, aio_mtouch.
222 - (libeio) tentatively support darwin in sendfile.
223
2243.31 Thu Nov 12 02:14:29 CET 2009
225 - fix result status documentation of aio_copy, aio_move.
226 - speed up object creation considerably by avoiding
227 hash lookups.
228
2293.3 Wed Aug 5 13:52:58 CEST 2009
230 - use common::sense.
231 - use common schmorp.h header.
232 - allow integers (file descriptors) in addition to file handles.
233 - take advantage of linux' eventfd (but it seems slower on smp?).
234 - use poll not select on posix platforms.
235
2363.261 Wed Jul 1 10:11:51 CEST 2009
237 - more 0S X workarounds (patch by Tokuhiro Matsuno).
238
2393.26 Tue Jun 30 09:33:26 CEST 2009
240 - 0S X of course claims to be posix 2008 but lacks posix_fadvise.
241 try to work around this horribly broken OS in a somewhat hackish
242 way. might help other os's too.
243
2443.25 Sat Jun 27 05:18:26 CEST 2009
245 - added IO::AIO::fadvise and IO::AIO::sendfile.
246 - (libeio) replaced quicksort+insertion sort by a tuned radix
247 sort + insertion sort, resulting in comparable runtime (usually
248 faster) to the old version, but without any ill side effects on
249 degenerated (for quicksort) data.
250 - (libeio) correctly sort dirs by inodes if we have perfect type
251 knowledge and DIRS_FIRST is used.
252 - (libeio) internally the wrong DT_* constants were used, but no
253 known system has differing EIO_DT_*/DT_* values, so not an issue.
254 - removed a (harmless) assert that was left over on the code
255 but should not have been.
256 - use more correct types (change IO length from IV to VAL64,
257 which makes a difference on systems without 64 bit perls).
258
2593.23 Sat Jun 13 16:57:58 CEST 2009
260 - fix off-by-one bug in aio_readdir that was introduced in the
261 rushed 3.22 release.
262
2633.22 Sat Jun 13 15:32:40 CEST 2009
264 - speed up readdirx sort algorithm slightly.
265 - bin/treescan was missing from distro tarball.
266
2673.21 Fri Jun 12 18:45:53 CEST 2009
268 - new options --dirs and --files for treescan.
269 - install bin/treescan by default.
270 - (libeio) aio_readdir can now be cancelled while executing.
271 - fix a printf format string for 64 bit systems (could lead
272 to problems on big endian 64 bit systems).
273 - do not use qsort() but our own algorithm: glibc initialises
274 the whole locale and I/O subsystem inside qsort, causing
275 a stack overflow on 32 bit machines. The new sort uses much less
276 stack and is more than twice as fast in typical situations.
277
2783.2 Sun Jun 7 20:30:05 CEST 2009
279 - (libeio) pwrite emulation was even more flawed than intended and did
280 not restore the file offset.
281 - add aio_readdirx, which can return inode and filetype and sort
282 the names in various ways.
283 - unfortunately, utime, chmod, chown on an open file that has just
284 been written can easily block, which caused aio_copy to block the
285 process. no more!
286 - no longer rely on dst path in aio_copy when futime is available.
287
2883.19 Tue Apr 21 22:05:21 CEST 2009
289 - more perl 5.10 workarounds for aio_read and write.
290 - aio_write no longer modifies the sv (if possible).
291 - aio_read now works correctly with magic values.
292
2933.18 Sun Apr 19 21:17:32 CEST 2009
294 - better diagnostics when some aio_* functions get passed an illegal fh.
295 - try to avoid crashes due to incompatible 5.10 API changes. grmbl.
296
2973.17 Thu Nov 20 08:45:36 CET 2008
298 - (libeio) added aio_sync_file_range (untested).
299 - add aio_busy to @IO::AIO::AIO_REQ.
300
3013.16 Wed Oct 22 18:28:01 CEST 2008
302 - use SvREFCNT_inc instead of SvREFCNT_inc_NN in a non-speed critical
303 part to improve portability to perl 5.8 (reported by szymon).
304
3053.15 Mon Oct 13 00:39:55 CEST 2008
306 - automatic removal of feeders was broken.
307 - (libeio) use a more robust method to detect whether a feeder
308 has added something to the group or not.
309
3103.1 Thu Oct 2 13:34:40 CEST 2008
311 - pre-deref the passed callback object, for increased speed
312 and decreased memory usage.
313 - call on_next_submit callback even for aio_group - impact unknown,
314 but seems more correct.
315 - $req->cb now returns the original callback.
316 - (libeio) pass EIO_GROUP/aio_group requests through the queue without
317 requiring a thread switch.
318 - (libeio) status code of aio_futime and aio_utime was always passed 0.
319 - do some other ยต-optimisations.
320
3213.07 Sat Aug 2 16:06:13 CEST 2008
322 - do not include LIBS in autoconf tests.
323
3243.06 Tue Jul 15 12:41:32 CEST 2008
325 - move preadwritelock definition before it's first reference,
326 to make it compile again on broken platforms (they still exist)
327 or badly cofngiured perls (redhat...), reported by Rob Bloodgood.
328
3293.05 Thu Jun 19 23:23:52 CEST 2008
330 - work around perl overriding readdir etc. with thread-unsafe
331 (sic!) versions.
332
3333.04 Wed Jun 18 01:35:38 CEST 2008
334 - (libeio) fix eio_mknod, which confused it's arguments.
335 - (libeio) do not use readdir_r, as Ulrich Drepper pointed out that this
336 is stupid.
337 - (libeio) fix eio__readahead prototype, patch by Jost Krieger.
338 - (libeio) fix a bug that could potentially cause IO::AIO
339 not to get initialised properly.
340
3413.03 Thu May 29 05:33:30 CEST 2008
342 - (libeio) correctly call pthread_attr_destroy ().
343 - (libeio) work around broken bsd headers once more.
344 - reduce shared library size again by not including wrappers.
345 - max_outstanding could cause poll to enter a busy-waiting loop.
346 - document the new IO::AIO::poll_cb result value.
347
3483.02 Mon May 12 02:32:02 CEST 2008
349 - fix a memory leak on aio_readlink.
350 - bring back working fchmod.
351 - nop and busy now set result to 0.
352 - set errno to ENOMEM when allocation fails.
353
3543.01 Sun May 11 03:07:03 CEST 2008
355 - (libeio) make it compile on systems without readahead or readdir_r.
356 - (libeio) improve configure check for readahead availability.
357 - do not try to link against -lrt.
358 - use a separate configure script for IO::AIO (not the libeio one).
359
3603.0 Sun May 11 00:57:14 CEST 2008
361 - added bin/treescan to the distribution.
362 - switched to using libeio.
363 - LOTS OF INCOMPATIBLE CHANGES:
364 - remove signal functionality, it is not worth the effort.
365 - max_outstanding no longer returns the previous number of requests.
366 - poll_cb no longer returns number of requests.
367
3682.62 Sat Apr 26 13:59:33 CEST 2008
369 - port to solaris perls configured for old posix
370 (analysed by Jost Krieger).
371 - keep a reference to the perl filehandle object in aio_close,
372 so it doesn't get closed prematurely, leading to ugly races.
373
3742.61 Wed Apr 16 18:45:02 CEST 2008
375 - fix treescan output duplication and improve output ordering.
376 also display files given on the commandline.
377 - use a different algorithm for aio_close that is faster
378 and probably has even lower chances of blocking.
379 - do our own stack memory management for threads - linux
380 allocates outrageous amounts of VM (not so bad unless you
381 use mlockall...), which severely limits the number of threads
382 on 32-bit arches: stack size is the larger of PTHREAD_STACK_MIN
383 and 4096 * sizeof (long) (usually this is 16..64k).
384
3852.6 Sun Mar 30 08:28:11 CEST 2008
10 - added aio_sync. 386 - added aio_sync.
387 - added aio_pathsync.
388 - fix prototypes of (void) functions.
11 389
122.51 Sat Oct 6 16:04:54 CEST 2007 3902.51 Sat Oct 6 16:04:54 CEST 2007
13 - perlio isn't generally threadsafe, so aio_close could not work reliably. 391 - perlio isn't generally threadsafe, so aio_close could not work reliably.
14 aio_close now tries a safe hack that might not be that asynchronous 392 aio_close now tries a safe hack that might not be that asynchronous
15 (see the manpage for details). 393 (see the manpage for details).

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