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Comparing IO-AIO/Changes (file contents):
Revision 1.96 by root, Sat Oct 28 01:24:19 2006 UTC vs.
Revision 1.212 by root, Sat Jan 2 14:11:32 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_cp/mvtree/rmtree 4TODO: aio_cptree/mvtree
5TODO: aio_utime, aio_chmod, aio_chown? 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: IO::AIO::mmap? aio_mincore?
6 10
7TODO: expose max_idle 11 - (libeio) max_poll_time was not properly converted to ticks.
12 - clarify cancel_subs description.
13 - IO::AIO::sendfile did not actually return the return value
14 from the sendfile call.
15 - implement aio_msync, aio_mtouch.
16 - (libeio) tentatively support darwin in sendfile.
17
183.31 Thu Nov 12 02:14:29 CET 2009
19 - fix result status documentation of aio_copy, aio_move.
20 - speed up object creation considerably by avoiding
21 hash lookups.
22
233.3 Wed Aug 5 13:52:58 CEST 2009
24 - use common::sense.
25 - use common schmorp.h header.
26 - allow integers (file descriptors) in addition to file handles.
27 - take advantage of linux' eventfd (but it seems slower on smp?).
28 - use poll not select on posix platforms.
29
303.261 Wed Jul 1 10:11:51 CEST 2009
31 - more 0S X workarounds (patch by Tokuhiro Matsuno).
32
333.26 Tue Jun 30 09:33:26 CEST 2009
34 - 0S X of course claims to be posix 2008 but lacks posix_fadvise.
35 try to work around this horribly broken OS in a somewhat hackish
36 way. might help other os's too.
37
383.25 Sat Jun 27 05:18:26 CEST 2009
39 - added IO::AIO::fadvise and IO::AIO::sendfile.
40 - (libeio) replaced quicksort+insertion sort by a tuned radix
41 sort + insertion sort, resulting in comparable runtime (usually
42 faster) to the old version, but without any ill side effects on
43 degenerated (for quicksort) data.
44 - (libeio) correctly sort dirs by inodes if we have perfect type
45 knowledge and DIRS_FIRST is used.
46 - (libeio) internally the wrong DT_* constants were used, but no
47 known system has differing EIO_DT_*/DT_* values, so not an issue.
48 - removed a (harmless) assert that was left over on the code
49 but should not have been.
50 - use more correct types (change IO length from IV to VAL64,
51 which makes a difference on systems without 64 bit perls).
52
533.23 Sat Jun 13 16:57:58 CEST 2009
54 - fix off-by-one bug in aio_readdir that was introduced in the
55 rushed 3.22 release.
56
573.22 Sat Jun 13 15:32:40 CEST 2009
58 - speed up readdirx sort algorithm slightly.
59 - bin/treescan was missing from distro tarball.
60
613.21 Fri Jun 12 18:45:53 CEST 2009
62 - new options --dirs and --files for treescan.
63 - install bin/treescan by default.
64 - (libeio) aio_readdir can now be cancelled while executing.
65 - fix a printf format string for 64 bit systems (could lead
66 to problems on big endian 64 bit systems).
67 - do not use qsort() but our own algorithm: glibc initialises
68 the whole locale and I/O subsystem inside qsort, causing
69 a stack overflow on 32 bit machines. The new sort uses much less
70 stack and is more than twice as fast in typical situations.
71
723.2 Sun Jun 7 20:30:05 CEST 2009
73 - (libeio) pwrite emulation was even more flawed than intended and did
74 not restore the file offset.
75 - add aio_readdirx, which can return inode and filetype and sort
76 the names in various ways.
77 - unfortunately, utime, chmod, chown on an open file that has just
78 been written can easily block, which caused aio_copy to block the
79 process. no more!
80 - no longer rely on dst path in aio_copy when futime is available.
81
823.19 Tue Apr 21 22:05:21 CEST 2009
83 - more perl 5.10 workarounds for aio_read and write.
84 - aio_write no longer modifies the sv (if possible).
85 - aio_read now works correctly with magic values.
86
873.18 Sun Apr 19 21:17:32 CEST 2009
88 - better diagnostics when some aio_* functions get passed an illegal fh.
89 - try to avoid crashes due to incompatible 5.10 API changes. grmbl.
90
913.17 Thu Nov 20 08:45:36 CET 2008
92 - (libeio) added aio_sync_file_range (untested).
93 - add aio_busy to @IO::AIO::AIO_REQ.
94
953.16 Wed Oct 22 18:28:01 CEST 2008
96 - use SvREFCNT_inc instead of SvREFCNT_inc_NN in a non-speed critical
97 part to improve portability to perl 5.8 (reported by szymon).
98
993.15 Mon Oct 13 00:39:55 CEST 2008
100 - automatic removal of feeders was broken.
101 - (libeio) use a more robust method to detect whether a feeder
102 has added something to the group or not.
103
1043.1 Thu Oct 2 13:34:40 CEST 2008
105 - pre-deref the passed callback object, for increased speed
106 and decreased memory usage.
107 - call on_next_submit callback even for aio_group - impact unknown,
108 but seems more correct.
109 - $req->cb now returns the original callback.
110 - (libeio) pass EIO_GROUP/aio_group requests through the queue without
111 requiring a thread switch.
112 - (libeio) status code of aio_futime and aio_utime was always passed 0.
113 - do some other ยต-optimisations.
114
1153.07 Sat Aug 2 16:06:13 CEST 2008
116 - do not include LIBS in autoconf tests.
117
1183.06 Tue Jul 15 12:41:32 CEST 2008
119 - move preadwritelock definition before it's first reference,
120 to make it compile again on broken platforms (they still exist)
121 or badly cofngiured perls (redhat...), reported by Rob Bloodgood.
122
1233.05 Thu Jun 19 23:23:52 CEST 2008
124 - work around perl overriding readdir etc. with thread-unsafe
125 (sic!) versions.
126
1273.04 Wed Jun 18 01:35:38 CEST 2008
128 - (libeio) fix eio_mknod, which confused it's arguments.
129 - (libeio) do not use readdir_r, as Ulrich Drepper pointed out that this
130 is stupid.
131 - (libeio) fix eio__readahead prototype, patch by Jost Krieger.
132 - (libeio) fix a bug that could potentially cause IO::AIO
133 not to get initialised properly.
134
1353.03 Thu May 29 05:33:30 CEST 2008
136 - (libeio) correctly call pthread_attr_destroy ().
137 - (libeio) work around broken bsd headers once more.
138 - reduce shared library size again by not including wrappers.
139 - max_outstanding could cause poll to enter a busy-waiting loop.
140 - document the new IO::AIO::poll_cb result value.
141
1423.02 Mon May 12 02:32:02 CEST 2008
143 - fix a memory leak on aio_readlink.
144 - bring back working fchmod.
145 - nop and busy now set result to 0.
146 - set errno to ENOMEM when allocation fails.
147
1483.01 Sun May 11 03:07:03 CEST 2008
149 - (libeio) make it compile on systems without readahead or readdir_r.
150 - (libeio) improve configure check for readahead availability.
151 - do not try to link against -lrt.
152 - use a separate configure script for IO::AIO (not the libeio one).
153
1543.0 Sun May 11 00:57:14 CEST 2008
155 - added bin/treescan to the distribution.
156 - switched to using libeio.
157 - LOTS OF INCOMPATIBLE CHANGES:
158 - remove signal functionality, it is not worth the effort.
159 - max_outstanding no longer returns the previous number of requests.
160 - poll_cb no longer returns number of requests.
161
1622.62 Sat Apr 26 13:59:33 CEST 2008
163 - port to solaris perls configured for old posix
164 (analysed by Jost Krieger).
165 - keep a reference to the perl filehandle object in aio_close,
166 so it doesn't get closed prematurely, leading to ugly races.
167
1682.61 Wed Apr 16 18:45:02 CEST 2008
169 - fix treescan output duplication and improve output ordering.
170 also display files given on the commandline.
171 - use a different algorithm for aio_close that is faster
172 and probably has even lower chances of blocking.
173 - do our own stack memory management for threads - linux
174 allocates outrageous amounts of VM (not so bad unless you
175 use mlockall...), which severely limits the number of threads
176 on 32-bit arches: stack size is the larger of PTHREAD_STACK_MIN
177 and 4096 * sizeof (long) (usually this is 16..64k).
178
1792.6 Sun Mar 30 08:28:11 CEST 2008
180 - added aio_sync.
181 - added aio_pathsync.
182 - fix prototypes of (void) functions.
183
1842.51 Sat Oct 6 16:04:54 CEST 2007
185 - perlio isn't generally threadsafe, so aio_close could not work reliably.
186 aio_close now tries a safe hack that might not be that asynchronous
187 (see the manpage for details).
188 - discard callback return values as to not grow the stack endlessly
189 when poll_cb handles many requests without returning.
190 - minor code cleanups.
191
1922.5 Thu Oct 4 14:49:08 CEST 2007
193 - replaced _fd2fh with faster xs code.
194 - aio_close will now try to do "the right thing" and thus might
195 work sensibly for the very first time.
196
1972.41 Mon Sep 24 21:28:21 CEST 2007
198 - after fork, invest some work to make sure that the poll_fileno
199 stays stable (by dup2'ing the new fd over the old one), to make
200 it easier for programs/libs that don't control their forking
201 behaviour and cannot recreate their watchers.
202
2032.4 Sun Aug 5 18:44:22 CEST 2007
204 - add aio_truncate, aio_chmod, aio_chown, aio_utime (linux
205 successfully demonstrated that you can block on futimes...).
206 - allow undef as fileoffset for aio_read/write and use read/write(2)
207 internally (useful for sockets or O_APPEND handles).
208 - allow undef for length in aio_write.
209 - negative dataoffsets work as expected now in aio_read/aio_write.
210 - use NV instead of UV for 32 bit perls and file offsets, as NVs
211 have a larger range then.
212 - shared code between BDB and IO::AIO.
213 - aio_busy was completely broken. now fixed.
214 - readahead emulation now returns something.
215 - correctly set errno to ENOSYS on unimplemented functions
216 (should never happen, though).
217 - large changes to make it partially compile and run on win32,
218 but win32 lacks too much functionality, and perl overrides way
219 too many functions with crashing versions.
220
2212.33 Tue Jan 23 23:55:41 CET 2007
222 - fix install path (Andreas J. Koenig).
223
2242.32 Mon Jan 22 16:56:23 CET 2007
225 - added aio_rmtree.
226 - wow, aio_mkdir was missing.
227 - aio_load did return undef on error, not -1.
228 - use prefixexp not prefix in autoconf.pm
229 (suggested by ... rt.cpan.org unreachable).
230 - avoid installing autoconf.pm.
231
2322.31 Sat Jan 6 03:46:02 CET 2007
233 - added aio_load.
234
2352.3 Sat Dec 23 05:48:07 CET 2006
236 - fix off-by-one bug in aio_read, causing memory corruption
237 or crashes.
238
2392.21 Fri Dec 22 05:03:38 CET 2006
240 - minor doc updates.
241 - minor cleanups.
242 - IO::AIO::poll returns request count.
243 - undocumented and unfinished async-signal-reporting.
244
2452.2 Tue Oct 31 00:31:00 CET 2006
246 - minor doc updates.
247 - added aio_readlink.
248 - properly zero-terminate aio_read buffer.
249 - fix aio_read/write with nonzero dataoffset.
250 - reduced size of aio request structure.
251 - better diagnostics when pathnames etc. are not byte-encoded;
252 do not leak request in that case, either.
253
2542.1 Sun Oct 29 02:01:57 CET 2006
255 - INCOMPATIBLE CHANGE: replace IO::AIO::poll_some by
256 IO::AIO::max_poll_reqs and IO::AIO::max_poll_time.
8 - fix a bug in aio_move where it would fail everytime 257 - fix a bug in aio_move where it would fail everytime
9 it would have to copy files manually. 258 it would have to copy files manually.
259 - doc updates.
10 - start threads only on (very low) demand. 260 - start threads only on (very low) demand.
11 - end threads automatically after 10s idle. 261 - end superfluous threads automatically after 10s idling.
262 - add IO::AIO::max_idle to control this.
12 - some tuning applied to random places. 263 - some tuning applied to random places.
13 - add aio_mknod. 264 - add aio_mknod.
14 265
152.0 Thu Oct 26 18:27:58 CEST 2006 2662.0 Thu Oct 26 18:27:58 CEST 2006
16 - minor incompatibility: max_outstanding semantics have changed. 267 - minor incompatibility: max_outstanding semantics have changed.

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