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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 1.230 by root, Sun May 9 20:42:55 2010 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: posix_madvise.
11TODO: add? also linux-specific stuff?
12O_EXEC
13O_SEARCH
14O_CLOEXEC
15O_DIRECTORY
16O_DSYNC
17O_NOCTTY
18O_NOFOLLOW
19O_NONBLOCK
20O_RSYNC
21O_SYNC
22O_TTY_INIT
4 23
52.0 24 - add O_RDWR, O_APPEND and O_EXCL symbols and semi-documented
6 - INCOMPATIBLE CHANGE: max_outstanding was removed, use 25 them.
7 a group with a feeder instead. 26 - cache the result IV, for a minor speedup in the common case.
27
283.65 Wed Mar 31 02:45:05 CEST 2010
29 - actually use PATH_MAX instead of NAME_MAX for readlink, as to not
30 cut off long pathnames in aio_readlink (based on patch by
31 Rasmus Andersson).
32 - a double fork partially killed the event pipe (great testcase
33 by dormando). affects IO::AIO, BDB and Async::Interrupt.
34 - suck steve's dick and rename our symbols to avoid colliding
35 with nonstandard identifier spam on the broken os x pseudo-os.
36 affects IO::AIO and BDB.
37
383.6 Mon Jan 11 00:43:39 CET 2010
39 - (libeio) more fixes for the freebsd/apple sendfile - broken by
40 manpage standards, but apparently correct accoridng to actual
41 kernel sources.
42 - add IO::AIO::mmap/munmap support.
43 - add IO::AIO::m(un)lockall support.
44 - clean up manpage.
45
463.5 Thu Jan 7 21:25:04 CET 2010
47 - (liebio) fix freebsd sendfile (Vanilla Hsu).
48 - (libeio) also fix darwin sendfile that suffered from a similar bug.
49 - add aio_statvfs as interface to statvfs/fstatvfs.
50 - work around buggy symlink() on cygwin in the testsuite.
51 - wtf. freebsd-8.0 actually passes the testsuite! I knew
52 they could implement fork and semaphores one day! cheers!
53
543.4 Sat Jan 2 15:13:04 CET 2010
55 - (libeio) max_poll_time was not properly converted to ticks.
56 - clarify cancel_subs description.
57 - IO::AIO::sendfile did not actually return the return value
58 from the sendfile call.
59 - implement aio_msync, aio_mtouch.
60 - (libeio) tentatively support darwin in sendfile.
61
623.31 Thu Nov 12 02:14:29 CET 2009
63 - fix result status documentation of aio_copy, aio_move.
64 - speed up object creation considerably by avoiding
65 hash lookups.
66
673.3 Wed Aug 5 13:52:58 CEST 2009
68 - use common::sense.
69 - use common schmorp.h header.
70 - allow integers (file descriptors) in addition to file handles.
71 - take advantage of linux' eventfd (but it seems slower on smp?).
72 - use poll not select on posix platforms.
73
743.261 Wed Jul 1 10:11:51 CEST 2009
75 - more 0S X workarounds (patch by Tokuhiro Matsuno).
76
773.26 Tue Jun 30 09:33:26 CEST 2009
78 - 0S X of course claims to be posix 2008 but lacks posix_fadvise.
79 try to work around this horribly broken OS in a somewhat hackish
80 way. might help other os's too.
81
823.25 Sat Jun 27 05:18:26 CEST 2009
83 - added IO::AIO::fadvise and IO::AIO::sendfile.
84 - (libeio) replaced quicksort+insertion sort by a tuned radix
85 sort + insertion sort, resulting in comparable runtime (usually
86 faster) to the old version, but without any ill side effects on
87 degenerated (for quicksort) data.
88 - (libeio) correctly sort dirs by inodes if we have perfect type
89 knowledge and DIRS_FIRST is used.
90 - (libeio) internally the wrong DT_* constants were used, but no
91 known system has differing EIO_DT_*/DT_* values, so not an issue.
92 - removed a (harmless) assert that was left over on the code
93 but should not have been.
94 - use more correct types (change IO length from IV to VAL64,
95 which makes a difference on systems without 64 bit perls).
96
973.23 Sat Jun 13 16:57:58 CEST 2009
98 - fix off-by-one bug in aio_readdir that was introduced in the
99 rushed 3.22 release.
100
1013.22 Sat Jun 13 15:32:40 CEST 2009
102 - speed up readdirx sort algorithm slightly.
103 - bin/treescan was missing from distro tarball.
104
1053.21 Fri Jun 12 18:45:53 CEST 2009
106 - new options --dirs and --files for treescan.
107 - install bin/treescan by default.
108 - (libeio) aio_readdir can now be cancelled while executing.
109 - fix a printf format string for 64 bit systems (could lead
110 to problems on big endian 64 bit systems).
111 - do not use qsort() but our own algorithm: glibc initialises
112 the whole locale and I/O subsystem inside qsort, causing
113 a stack overflow on 32 bit machines. The new sort uses much less
114 stack and is more than twice as fast in typical situations.
115
1163.2 Sun Jun 7 20:30:05 CEST 2009
117 - (libeio) pwrite emulation was even more flawed than intended and did
118 not restore the file offset.
119 - add aio_readdirx, which can return inode and filetype and sort
120 the names in various ways.
121 - unfortunately, utime, chmod, chown on an open file that has just
122 been written can easily block, which caused aio_copy to block the
123 process. no more!
124 - no longer rely on dst path in aio_copy when futime is available.
125
1263.19 Tue Apr 21 22:05:21 CEST 2009
127 - more perl 5.10 workarounds for aio_read and write.
128 - aio_write no longer modifies the sv (if possible).
129 - aio_read now works correctly with magic values.
130
1313.18 Sun Apr 19 21:17:32 CEST 2009
132 - better diagnostics when some aio_* functions get passed an illegal fh.
133 - try to avoid crashes due to incompatible 5.10 API changes. grmbl.
134
1353.17 Thu Nov 20 08:45:36 CET 2008
136 - (libeio) added aio_sync_file_range (untested).
137 - add aio_busy to @IO::AIO::AIO_REQ.
138
1393.16 Wed Oct 22 18:28:01 CEST 2008
140 - use SvREFCNT_inc instead of SvREFCNT_inc_NN in a non-speed critical
141 part to improve portability to perl 5.8 (reported by szymon).
142
1433.15 Mon Oct 13 00:39:55 CEST 2008
144 - automatic removal of feeders was broken.
145 - (libeio) use a more robust method to detect whether a feeder
146 has added something to the group or not.
147
1483.1 Thu Oct 2 13:34:40 CEST 2008
149 - pre-deref the passed callback object, for increased speed
150 and decreased memory usage.
151 - call on_next_submit callback even for aio_group - impact unknown,
152 but seems more correct.
153 - $req->cb now returns the original callback.
154 - (libeio) pass EIO_GROUP/aio_group requests through the queue without
155 requiring a thread switch.
156 - (libeio) status code of aio_futime and aio_utime was always passed 0.
157 - do some other ยต-optimisations.
158
1593.07 Sat Aug 2 16:06:13 CEST 2008
160 - do not include LIBS in autoconf tests.
161
1623.06 Tue Jul 15 12:41:32 CEST 2008
163 - move preadwritelock definition before it's first reference,
164 to make it compile again on broken platforms (they still exist)
165 or badly cofngiured perls (redhat...), reported by Rob Bloodgood.
166
1673.05 Thu Jun 19 23:23:52 CEST 2008
168 - work around perl overriding readdir etc. with thread-unsafe
169 (sic!) versions.
170
1713.04 Wed Jun 18 01:35:38 CEST 2008
172 - (libeio) fix eio_mknod, which confused it's arguments.
173 - (libeio) do not use readdir_r, as Ulrich Drepper pointed out that this
174 is stupid.
175 - (libeio) fix eio__readahead prototype, patch by Jost Krieger.
176 - (libeio) fix a bug that could potentially cause IO::AIO
177 not to get initialised properly.
178
1793.03 Thu May 29 05:33:30 CEST 2008
180 - (libeio) correctly call pthread_attr_destroy ().
181 - (libeio) work around broken bsd headers once more.
182 - reduce shared library size again by not including wrappers.
183 - max_outstanding could cause poll to enter a busy-waiting loop.
184 - document the new IO::AIO::poll_cb result value.
185
1863.02 Mon May 12 02:32:02 CEST 2008
187 - fix a memory leak on aio_readlink.
188 - bring back working fchmod.
189 - nop and busy now set result to 0.
190 - set errno to ENOMEM when allocation fails.
191
1923.01 Sun May 11 03:07:03 CEST 2008
193 - (libeio) make it compile on systems without readahead or readdir_r.
194 - (libeio) improve configure check for readahead availability.
195 - do not try to link against -lrt.
196 - use a separate configure script for IO::AIO (not the libeio one).
197
1983.0 Sun May 11 00:57:14 CEST 2008
199 - added bin/treescan to the distribution.
200 - switched to using libeio.
201 - LOTS OF INCOMPATIBLE CHANGES:
202 - remove signal functionality, it is not worth the effort.
203 - max_outstanding no longer returns the previous number of requests.
204 - poll_cb no longer returns number of requests.
205
2062.62 Sat Apr 26 13:59:33 CEST 2008
207 - port to solaris perls configured for old posix
208 (analysed by Jost Krieger).
209 - keep a reference to the perl filehandle object in aio_close,
210 so it doesn't get closed prematurely, leading to ugly races.
211
2122.61 Wed Apr 16 18:45:02 CEST 2008
213 - fix treescan output duplication and improve output ordering.
214 also display files given on the commandline.
215 - use a different algorithm for aio_close that is faster
216 and probably has even lower chances of blocking.
217 - do our own stack memory management for threads - linux
218 allocates outrageous amounts of VM (not so bad unless you
219 use mlockall...), which severely limits the number of threads
220 on 32-bit arches: stack size is the larger of PTHREAD_STACK_MIN
221 and 4096 * sizeof (long) (usually this is 16..64k).
222
2232.6 Sun Mar 30 08:28:11 CEST 2008
224 - added aio_sync.
225 - added aio_pathsync.
226 - fix prototypes of (void) functions.
227
2282.51 Sat Oct 6 16:04:54 CEST 2007
229 - perlio isn't generally threadsafe, so aio_close could not work reliably.
230 aio_close now tries a safe hack that might not be that asynchronous
231 (see the manpage for details).
232 - discard callback return values as to not grow the stack endlessly
233 when poll_cb handles many requests without returning.
234 - minor code cleanups.
235
2362.5 Thu Oct 4 14:49:08 CEST 2007
237 - replaced _fd2fh with faster xs code.
238 - aio_close will now try to do "the right thing" and thus might
239 work sensibly for the very first time.
240
2412.41 Mon Sep 24 21:28:21 CEST 2007
242 - after fork, invest some work to make sure that the poll_fileno
243 stays stable (by dup2'ing the new fd over the old one), to make
244 it easier for programs/libs that don't control their forking
245 behaviour and cannot recreate their watchers.
246
2472.4 Sun Aug 5 18:44:22 CEST 2007
248 - add aio_truncate, aio_chmod, aio_chown, aio_utime (linux
249 successfully demonstrated that you can block on futimes...).
250 - allow undef as fileoffset for aio_read/write and use read/write(2)
251 internally (useful for sockets or O_APPEND handles).
252 - allow undef for length in aio_write.
253 - negative dataoffsets work as expected now in aio_read/aio_write.
254 - use NV instead of UV for 32 bit perls and file offsets, as NVs
255 have a larger range then.
256 - shared code between BDB and IO::AIO.
257 - aio_busy was completely broken. now fixed.
258 - readahead emulation now returns something.
259 - correctly set errno to ENOSYS on unimplemented functions
260 (should never happen, though).
261 - large changes to make it partially compile and run on win32,
262 but win32 lacks too much functionality, and perl overrides way
263 too many functions with crashing versions.
264
2652.33 Tue Jan 23 23:55:41 CET 2007
266 - fix install path (Andreas J. Koenig).
267
2682.32 Mon Jan 22 16:56:23 CET 2007
269 - added aio_rmtree.
270 - wow, aio_mkdir was missing.
271 - aio_load did return undef on error, not -1.
272 - use prefixexp not prefix in autoconf.pm
273 (suggested by ... rt.cpan.org unreachable).
274 - avoid installing autoconf.pm.
275
2762.31 Sat Jan 6 03:46:02 CET 2007
277 - added aio_load.
278
2792.3 Sat Dec 23 05:48:07 CET 2006
280 - fix off-by-one bug in aio_read, causing memory corruption
281 or crashes.
282
2832.21 Fri Dec 22 05:03:38 CET 2006
284 - minor doc updates.
285 - minor cleanups.
286 - IO::AIO::poll returns request count.
287 - undocumented and unfinished async-signal-reporting.
288
2892.2 Tue Oct 31 00:31:00 CET 2006
290 - minor doc updates.
291 - added aio_readlink.
292 - properly zero-terminate aio_read buffer.
293 - fix aio_read/write with nonzero dataoffset.
294 - reduced size of aio request structure.
295 - better diagnostics when pathnames etc. are not byte-encoded;
296 do not leak request in that case, either.
297
2982.1 Sun Oct 29 02:01:57 CET 2006
299 - INCOMPATIBLE CHANGE: replace IO::AIO::poll_some by
300 IO::AIO::max_poll_reqs and IO::AIO::max_poll_time.
301 - fix a bug in aio_move where it would fail everytime
302 it would have to copy files manually.
303 - doc updates.
304 - start threads only on (very low) demand.
305 - end superfluous threads automatically after 10s idling.
306 - add IO::AIO::max_idle to control this.
307 - some tuning applied to random places.
308 - add aio_mknod.
309
3102.0 Thu Oct 26 18:27:58 CEST 2006
311 - minor incompatibility: max_outstanding semantics have changed.
8 - major rewrite, consider all functionality EXPERIMENTAL. 312 - major rewrite, consider all functionality EXPERIMENTAL.
9 - aio requests can be cancelled. 313 - aio requests can be cancelled.
10 - callbacks can be (re-)set later. 314 - callbacks can be (re-)set later.
11 - aio requests can have choose 9 priorities. 315 - aio requests can choose between 9 priorities.
12 - add aio_group: aio requests can be grouped 316 - add aio_group: aio requests can be grouped
13 into composite requests. 317 into composite requests.
14 - generator interface for groups. 318 - generator interface for groups.
15 - add IO::AIO::poll_some. 319 - add IO::AIO::poll_some.
16 - major documentation improvements. 320 - major documentation improvements.
17 - very minor bugfixes. 321 - very minor bugfixes.
18 - add aio_nop for dummy requests. 322 - add aio_nop for dummy requests.
19 - add aio_busy mainly for benchmarking and debugging. 323 - add aio_busy mainly for benchmarking and debugging.
20 - deprecated max_outstanding.
21 - use "fast" mutexes on linux. 324 - use "fast" mutexes on linux.
22 - use dynamic (and larger) buffers instead of 325 - use dynamic (and larger) buffers instead of
23 putting them onto the stack. 326 putting them onto the stack.
24 - optimise x86 and amd64 a bit. 327 - optimise x86 and amd64 a bit.
25 - better error checking when ENOMEM. 328 - better error checking when ENOMEM.
26 - hopefully fix mem and dirp leaks on fork. 329 - hopefully fix mem and dirp leaks on fork.
330 - warn about broken perl malloc.
27 - compiles on cygwin (but pread is broken on cygwin 331 - compiles on cygwin (but pread is broken on cygwin
28 which is not detected by autoconf, so you have to 332 which is not detected by autoconf, so you have to
29 edit autoconf/config.h yourself to enable emulation). 333 edit autoconf/config.h yourself to enable emulation).
30 334
311.8 Sat Jun 24 22:20:44 CEST 2006 3351.8 Sat Jun 24 22:20:44 CEST 2006
… …
68 - somebody nagged about C89 compatibility, so this release should 372 - somebody nagged about C89 compatibility, so this release should
69 be C89 compatible, but no guarantees for future ones. 373 be C89 compatible, but no guarantees for future ones.
70 - abort when the configure script fails. 374 - abort when the configure script fails.
71 375
721.4 Wed Aug 17 08:07:27 CEST 2005 3761.4 Wed Aug 17 08:07:27 CEST 2005
73 - forget to recreate the pipe after forking, this could cause 377 - forgot to recreate the pipe after forking, this could cause
74 deadlocks. 378 deadlocks.
75 379
761.3 Wed Aug 17 07:25:54 CEST 2005 3801.3 Wed Aug 17 07:25:54 CEST 2005
77 - properly propagate exceptions from callbacks, instead of silently 381 - properly propagate exceptions from callbacks, instead of silently
78 eating them. 382 eating them.

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