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Comparing IO-AIO/Changes (file contents):
Revision 1.89 by root, Thu Oct 26 12:38:04 2006 UTC vs.
Revision 1.246 by root, Tue Feb 15 03:21:41 2011 UTC

1Revision history for IO::AIO 1Revision history for IO::AIO
2 2
3TODO: better autoconf.pm that can return LIBS etc. 3TODO: better autoconf.pm that can return LIBS etc.
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/)
7TODO: aio_fcntl, at least for file-locking
8TODO: fallocate, if it wouldn't be so useless.
9TODO: aio_mincore?
10TODO: add? also linux-specific stuff?
11TODO: O_EXEC O_SEARCH O_CLOEXEC O_DIRECTORY O_DSYNC O_NOCTTY O_NOFOLLOW O_NONBLOCK O_RSYNC O_SYNC O_TTY_INIT O_DIRECT O_LARGEFILE O_NOATIME O_ASYNC
4 12
52.0 13 - use nonstandard but maybe-working-on-bsd fork technique.
6 - INCOMPATIBLE CHANGE: max_outstanding was removed, use 14 - support a max_idle value of 0.
7 a group with a feeder instead. 15 - support setting of idle timeout value (IO::AIO::idle_timeout).
16
173.72 Fri Feb 11 04:25:38 CET 2011
18 - use _POSIX_MEMLOCK_RANGE to detetc mlock/munlock.
19 - aio_mknod always used a dev_t value of 0.
20 - new treescan option: --grep.
21 - add more S_IF macros, and major/minor/makedev "macros".
22
233.71 Thu Dec 30 08:18:46 CET 2010
24 - the numerical result value passed to callbacks did not stringify
25 correctly, due to internal reuse and failure to reset the sv flags.
26 - actually test for posix_[mf]advise, as at least uClibc defines
27 _POSIX_ADVISORY_INFO without actually having any of the required
28 funcitonality. ugh.
29
303.7 Mon Nov 1 23:00:34 CET 2010
31 - implement/add madvise, mmap, munmap, aio_mlockall, munlockall,
32 aio_mlock, munlock, msync and mtouch to @EXPORT_OK.
33 - document the sad state of affairs w.r.t. pthread on many bsds.
34 - do not enable mmap on systems without _POSIX_MAPPED_FILES
35 (openbsd 4.8).
36 - do not leak memory in IO::AIO::mmap when the scalar already
37 had string-data.
38 - add O_RDWR, O_APPEND and O_EXCL symbols and semi-document
39 them.
40 - cache the result IV, for a minor speedup in the common case.
41 - croak when an mmapped-scalar changes location, to detect
42 user-errors better.
43 - fix aio_readlink prototype.
44
453.65 Wed Mar 31 02:45:05 CEST 2010
46 - actually use PATH_MAX instead of NAME_MAX for readlink, as to not
47 cut off long pathnames in aio_readlink (based on patch by
48 Rasmus Andersson).
49 - a double fork partially killed the event pipe (great testcase
50 by dormando). affects IO::AIO, BDB and Async::Interrupt.
51 - suck steve's dick and rename our symbols to avoid colliding
52 with nonstandard identifier spam on the broken os x pseudo-os.
53 affects IO::AIO and BDB.
54
553.6 Mon Jan 11 00:43:39 CET 2010
56 - (libeio) more fixes for the freebsd/apple sendfile - broken by
57 manpage standards, but apparently correct accoridng to actual
58 kernel sources.
59 - add IO::AIO::mmap/munmap support.
60 - add IO::AIO::m(un)lockall support.
61 - clean up manpage.
62
633.5 Thu Jan 7 21:25:04 CET 2010
64 - (liebio) fix freebsd sendfile (Vanilla Hsu).
65 - (libeio) also fix darwin sendfile that suffered from a similar bug.
66 - add aio_statvfs as interface to statvfs/fstatvfs.
67 - work around buggy symlink() on cygwin in the testsuite.
68 - wtf. freebsd-8.0 actually passes the testsuite! I knew
69 they could implement fork and semaphores one day! cheers!
70
713.4 Sat Jan 2 15:13:04 CET 2010
72 - (libeio) max_poll_time was not properly converted to ticks.
73 - clarify cancel_subs description.
74 - IO::AIO::sendfile did not actually return the return value
75 from the sendfile call.
76 - implement aio_msync, aio_mtouch.
77 - (libeio) tentatively support darwin in sendfile.
78
793.31 Thu Nov 12 02:14:29 CET 2009
80 - fix result status documentation of aio_copy, aio_move.
81 - speed up object creation considerably by avoiding
82 hash lookups.
83
843.3 Wed Aug 5 13:52:58 CEST 2009
85 - use common::sense.
86 - use common schmorp.h header.
87 - allow integers (file descriptors) in addition to file handles.
88 - take advantage of linux' eventfd (but it seems slower on smp?).
89 - use poll not select on posix platforms.
90
913.261 Wed Jul 1 10:11:51 CEST 2009
92 - more 0S X workarounds (patch by Tokuhiro Matsuno).
93
943.26 Tue Jun 30 09:33:26 CEST 2009
95 - 0S X of course claims to be posix 2008 but lacks posix_fadvise.
96 try to work around this horribly broken OS in a somewhat hackish
97 way. might help other os's too.
98
993.25 Sat Jun 27 05:18:26 CEST 2009
100 - added IO::AIO::fadvise and IO::AIO::sendfile.
101 - (libeio) replaced quicksort+insertion sort by a tuned radix
102 sort + insertion sort, resulting in comparable runtime (usually
103 faster) to the old version, but without any ill side effects on
104 degenerated (for quicksort) data.
105 - (libeio) correctly sort dirs by inodes if we have perfect type
106 knowledge and DIRS_FIRST is used.
107 - (libeio) internally the wrong DT_* constants were used, but no
108 known system has differing EIO_DT_*/DT_* values, so not an issue.
109 - removed a (harmless) assert that was left over on the code
110 but should not have been.
111 - use more correct types (change IO length from IV to VAL64,
112 which makes a difference on systems without 64 bit perls).
113
1143.23 Sat Jun 13 16:57:58 CEST 2009
115 - fix off-by-one bug in aio_readdir that was introduced in the
116 rushed 3.22 release.
117
1183.22 Sat Jun 13 15:32:40 CEST 2009
119 - speed up readdirx sort algorithm slightly.
120 - bin/treescan was missing from distro tarball.
121
1223.21 Fri Jun 12 18:45:53 CEST 2009
123 - new options --dirs and --files for treescan.
124 - install bin/treescan by default.
125 - (libeio) aio_readdir can now be cancelled while executing.
126 - fix a printf format string for 64 bit systems (could lead
127 to problems on big endian 64 bit systems).
128 - do not use qsort() but our own algorithm: glibc initialises
129 the whole locale and I/O subsystem inside qsort, causing
130 a stack overflow on 32 bit machines. The new sort uses much less
131 stack and is more than twice as fast in typical situations.
132
1333.2 Sun Jun 7 20:30:05 CEST 2009
134 - (libeio) pwrite emulation was even more flawed than intended and did
135 not restore the file offset.
136 - add aio_readdirx, which can return inode and filetype and sort
137 the names in various ways.
138 - unfortunately, utime, chmod, chown on an open file that has just
139 been written can easily block, which caused aio_copy to block the
140 process. no more!
141 - no longer rely on dst path in aio_copy when futime is available.
142
1433.19 Tue Apr 21 22:05:21 CEST 2009
144 - more perl 5.10 workarounds for aio_read and write.
145 - aio_write no longer modifies the sv (if possible).
146 - aio_read now works correctly with magic values.
147
1483.18 Sun Apr 19 21:17:32 CEST 2009
149 - better diagnostics when some aio_* functions get passed an illegal fh.
150 - try to avoid crashes due to incompatible 5.10 API changes. grmbl.
151
1523.17 Thu Nov 20 08:45:36 CET 2008
153 - (libeio) added aio_sync_file_range (untested).
154 - add aio_busy to @IO::AIO::AIO_REQ.
155
1563.16 Wed Oct 22 18:28:01 CEST 2008
157 - use SvREFCNT_inc instead of SvREFCNT_inc_NN in a non-speed critical
158 part to improve portability to perl 5.8 (reported by szymon).
159
1603.15 Mon Oct 13 00:39:55 CEST 2008
161 - automatic removal of feeders was broken.
162 - (libeio) use a more robust method to detect whether a feeder
163 has added something to the group or not.
164
1653.1 Thu Oct 2 13:34:40 CEST 2008
166 - pre-deref the passed callback object, for increased speed
167 and decreased memory usage.
168 - call on_next_submit callback even for aio_group - impact unknown,
169 but seems more correct.
170 - $req->cb now returns the original callback.
171 - (libeio) pass EIO_GROUP/aio_group requests through the queue without
172 requiring a thread switch.
173 - (libeio) status code of aio_futime and aio_utime was always passed 0.
174 - do some other ยต-optimisations.
175
1763.07 Sat Aug 2 16:06:13 CEST 2008
177 - do not include LIBS in autoconf tests.
178
1793.06 Tue Jul 15 12:41:32 CEST 2008
180 - move preadwritelock definition before it's first reference,
181 to make it compile again on broken platforms (they still exist)
182 or badly cofngiured perls (redhat...), reported by Rob Bloodgood.
183
1843.05 Thu Jun 19 23:23:52 CEST 2008
185 - work around perl overriding readdir etc. with thread-unsafe
186 (sic!) versions.
187
1883.04 Wed Jun 18 01:35:38 CEST 2008
189 - (libeio) fix eio_mknod, which confused it's arguments.
190 - (libeio) do not use readdir_r, as Ulrich Drepper pointed out that this
191 is stupid.
192 - (libeio) fix eio__readahead prototype, patch by Jost Krieger.
193 - (libeio) fix a bug that could potentially cause IO::AIO
194 not to get initialised properly.
195
1963.03 Thu May 29 05:33:30 CEST 2008
197 - (libeio) correctly call pthread_attr_destroy ().
198 - (libeio) work around broken bsd headers once more.
199 - reduce shared library size again by not including wrappers.
200 - max_outstanding could cause poll to enter a busy-waiting loop.
201 - document the new IO::AIO::poll_cb result value.
202
2033.02 Mon May 12 02:32:02 CEST 2008
204 - fix a memory leak on aio_readlink.
205 - bring back working fchmod.
206 - nop and busy now set result to 0.
207 - set errno to ENOMEM when allocation fails.
208
2093.01 Sun May 11 03:07:03 CEST 2008
210 - (libeio) make it compile on systems without readahead or readdir_r.
211 - (libeio) improve configure check for readahead availability.
212 - do not try to link against -lrt.
213 - use a separate configure script for IO::AIO (not the libeio one).
214
2153.0 Sun May 11 00:57:14 CEST 2008
216 - added bin/treescan to the distribution.
217 - switched to using libeio.
218 - LOTS OF INCOMPATIBLE CHANGES:
219 - remove signal functionality, it is not worth the effort.
220 - max_outstanding no longer returns the previous number of requests.
221 - poll_cb no longer returns number of requests.
222
2232.62 Sat Apr 26 13:59:33 CEST 2008
224 - port to solaris perls configured for old posix
225 (analysed by Jost Krieger).
226 - keep a reference to the perl filehandle object in aio_close,
227 so it doesn't get closed prematurely, leading to ugly races.
228
2292.61 Wed Apr 16 18:45:02 CEST 2008
230 - fix treescan output duplication and improve output ordering.
231 also display files given on the commandline.
232 - use a different algorithm for aio_close that is faster
233 and probably has even lower chances of blocking.
234 - do our own stack memory management for threads - linux
235 allocates outrageous amounts of VM (not so bad unless you
236 use mlockall...), which severely limits the number of threads
237 on 32-bit arches: stack size is the larger of PTHREAD_STACK_MIN
238 and 4096 * sizeof (long) (usually this is 16..64k).
239
2402.6 Sun Mar 30 08:28:11 CEST 2008
241 - added aio_sync.
242 - added aio_pathsync.
243 - fix prototypes of (void) functions.
244
2452.51 Sat Oct 6 16:04:54 CEST 2007
246 - perlio isn't generally threadsafe, so aio_close could not work reliably.
247 aio_close now tries a safe hack that might not be that asynchronous
248 (see the manpage for details).
249 - discard callback return values as to not grow the stack endlessly
250 when poll_cb handles many requests without returning.
251 - minor code cleanups.
252
2532.5 Thu Oct 4 14:49:08 CEST 2007
254 - replaced _fd2fh with faster xs code.
255 - aio_close will now try to do "the right thing" and thus might
256 work sensibly for the very first time.
257
2582.41 Mon Sep 24 21:28:21 CEST 2007
259 - after fork, invest some work to make sure that the poll_fileno
260 stays stable (by dup2'ing the new fd over the old one), to make
261 it easier for programs/libs that don't control their forking
262 behaviour and cannot recreate their watchers.
263
2642.4 Sun Aug 5 18:44:22 CEST 2007
265 - add aio_truncate, aio_chmod, aio_chown, aio_utime (linux
266 successfully demonstrated that you can block on futimes...).
267 - allow undef as fileoffset for aio_read/write and use read/write(2)
268 internally (useful for sockets or O_APPEND handles).
269 - allow undef for length in aio_write.
270 - negative dataoffsets work as expected now in aio_read/aio_write.
271 - use NV instead of UV for 32 bit perls and file offsets, as NVs
272 have a larger range then.
273 - shared code between BDB and IO::AIO.
274 - aio_busy was completely broken. now fixed.
275 - readahead emulation now returns something.
276 - correctly set errno to ENOSYS on unimplemented functions
277 (should never happen, though).
278 - large changes to make it partially compile and run on win32,
279 but win32 lacks too much functionality, and perl overrides way
280 too many functions with crashing versions.
281
2822.33 Tue Jan 23 23:55:41 CET 2007
283 - fix install path (Andreas J. Koenig).
284
2852.32 Mon Jan 22 16:56:23 CET 2007
286 - added aio_rmtree.
287 - wow, aio_mkdir was missing.
288 - aio_load did return undef on error, not -1.
289 - use prefixexp not prefix in autoconf.pm
290 (suggested by ... rt.cpan.org unreachable).
291 - avoid installing autoconf.pm.
292
2932.31 Sat Jan 6 03:46:02 CET 2007
294 - added aio_load.
295
2962.3 Sat Dec 23 05:48:07 CET 2006
297 - fix off-by-one bug in aio_read, causing memory corruption
298 or crashes.
299
3002.21 Fri Dec 22 05:03:38 CET 2006
301 - minor doc updates.
302 - minor cleanups.
303 - IO::AIO::poll returns request count.
304 - undocumented and unfinished async-signal-reporting.
305
3062.2 Tue Oct 31 00:31:00 CET 2006
307 - minor doc updates.
308 - added aio_readlink.
309 - properly zero-terminate aio_read buffer.
310 - fix aio_read/write with nonzero dataoffset.
311 - reduced size of aio request structure.
312 - better diagnostics when pathnames etc. are not byte-encoded;
313 do not leak request in that case, either.
314
3152.1 Sun Oct 29 02:01:57 CET 2006
316 - INCOMPATIBLE CHANGE: replace IO::AIO::poll_some by
317 IO::AIO::max_poll_reqs and IO::AIO::max_poll_time.
318 - fix a bug in aio_move where it would fail everytime
319 it would have to copy files manually.
320 - doc updates.
321 - start threads only on (very low) demand.
322 - end superfluous threads automatically after 10s idling.
323 - add IO::AIO::max_idle to control this.
324 - some tuning applied to random places.
325 - add aio_mknod.
326
3272.0 Thu Oct 26 18:27:58 CEST 2006
328 - minor incompatibility: max_outstanding semantics have changed.
8 - major rewrite, consider all functionality EXPERIMENTAL. 329 - major rewrite, consider all functionality EXPERIMENTAL.
9 - aio requests can be cancelled. 330 - aio requests can be cancelled.
10 - callbacks can be (re-)set later. 331 - callbacks can be (re-)set later.
11 - aio requests can have choose 9 priorities. 332 - aio requests can choose between 9 priorities.
12 - add aio_group: aio requests can be grouped 333 - add aio_group: aio requests can be grouped
13 into composite requests. 334 into composite requests.
14 - generator interface for groups. 335 - generator interface for groups.
15 - add IO::AIO::poll_some. 336 - add IO::AIO::poll_some.
16 - major documentation improvements. 337 - major documentation improvements.
17 - very minor bugfixes. 338 - very minor bugfixes.
18 - add aio_nop for dummy requests. 339 - add aio_nop for dummy requests.
19 - add aio_busy mainly for benchmarking and debugging. 340 - add aio_busy mainly for benchmarking and debugging.
20 - deprecated max_outstanding.
21 - use "fast" mutexes on linux. 341 - use "fast" mutexes on linux.
22 - use dynamic (and larger) buffers instead of 342 - use dynamic (and larger) buffers instead of
23 putting them onto the stack. 343 putting them onto the stack.
24 - optimise x86 and amd64 a bit. 344 - optimise x86 and amd64 a bit.
25 - better error checking when ENOMEM. 345 - better error checking when ENOMEM.
26 - hopefully fix mem and dirp leaks on fork. 346 - hopefully fix mem and dirp leaks on fork.
347 - warn about broken perl malloc.
27 - compiles on cygwin (but pread is broken on cygwin 348 - compiles on cygwin (but pread is broken on cygwin
28 which is not detected by autoconf, so you have to 349 which is not detected by autoconf, so you have to
29 edit autoconf/config.h yourself to enable emulation). 350 edit autoconf/config.h yourself to enable emulation).
30 351
311.8 Sat Jun 24 22:20:44 CEST 2006 3521.8 Sat Jun 24 22:20:44 CEST 2006
… …
68 - somebody nagged about C89 compatibility, so this release should 389 - somebody nagged about C89 compatibility, so this release should
69 be C89 compatible, but no guarantees for future ones. 390 be C89 compatible, but no guarantees for future ones.
70 - abort when the configure script fails. 391 - abort when the configure script fails.
71 392
721.4 Wed Aug 17 08:07:27 CEST 2005 3931.4 Wed Aug 17 08:07:27 CEST 2005
73 - forget to recreate the pipe after forking, this could cause 394 - forgot to recreate the pipe after forking, this could cause
74 deadlocks. 395 deadlocks.
75 396
761.3 Wed Aug 17 07:25:54 CEST 2005 3971.3 Wed Aug 17 07:25:54 CEST 2005
77 - properly propagate exceptions from callbacks, instead of silently 398 - properly propagate exceptions from callbacks, instead of silently
78 eating them. 399 eating them.

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