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Comparing IO-AIO/Changes (file contents):
Revision 1.105 by root, Tue Oct 31 00:32:19 2006 UTC vs.
Revision 1.231 by root, Wed Aug 4 14:02:58 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/rmtree 4TODO: aio_cptree/mvtree
5TODO: aio_utime, aio_chmod, aio_chown? should simply stat/open first? 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
23
24 - do not leak memory in IO::AIO::mmap when the scalar already
25 had string-data.
26 - add O_RDWR, O_APPEND and O_EXCL symbols and semi-documented
27 them.
28 - cache the result IV, for a minor speedup in the common case.
29 - croak when an mmapped-scalar changes location, to detect
30 user-errors better.
31
323.65 Wed Mar 31 02:45:05 CEST 2010
33 - actually use PATH_MAX instead of NAME_MAX for readlink, as to not
34 cut off long pathnames in aio_readlink (based on patch by
35 Rasmus Andersson).
36 - a double fork partially killed the event pipe (great testcase
37 by dormando). affects IO::AIO, BDB and Async::Interrupt.
38 - suck steve's dick and rename our symbols to avoid colliding
39 with nonstandard identifier spam on the broken os x pseudo-os.
40 affects IO::AIO and BDB.
41
423.6 Mon Jan 11 00:43:39 CET 2010
43 - (libeio) more fixes for the freebsd/apple sendfile - broken by
44 manpage standards, but apparently correct accoridng to actual
45 kernel sources.
46 - add IO::AIO::mmap/munmap support.
47 - add IO::AIO::m(un)lockall support.
48 - clean up manpage.
49
503.5 Thu Jan 7 21:25:04 CET 2010
51 - (liebio) fix freebsd sendfile (Vanilla Hsu).
52 - (libeio) also fix darwin sendfile that suffered from a similar bug.
53 - add aio_statvfs as interface to statvfs/fstatvfs.
54 - work around buggy symlink() on cygwin in the testsuite.
55 - wtf. freebsd-8.0 actually passes the testsuite! I knew
56 they could implement fork and semaphores one day! cheers!
57
583.4 Sat Jan 2 15:13:04 CET 2010
59 - (libeio) max_poll_time was not properly converted to ticks.
60 - clarify cancel_subs description.
61 - IO::AIO::sendfile did not actually return the return value
62 from the sendfile call.
63 - implement aio_msync, aio_mtouch.
64 - (libeio) tentatively support darwin in sendfile.
65
663.31 Thu Nov 12 02:14:29 CET 2009
67 - fix result status documentation of aio_copy, aio_move.
68 - speed up object creation considerably by avoiding
69 hash lookups.
70
713.3 Wed Aug 5 13:52:58 CEST 2009
72 - use common::sense.
73 - use common schmorp.h header.
74 - allow integers (file descriptors) in addition to file handles.
75 - take advantage of linux' eventfd (but it seems slower on smp?).
76 - use poll not select on posix platforms.
77
783.261 Wed Jul 1 10:11:51 CEST 2009
79 - more 0S X workarounds (patch by Tokuhiro Matsuno).
80
813.26 Tue Jun 30 09:33:26 CEST 2009
82 - 0S X of course claims to be posix 2008 but lacks posix_fadvise.
83 try to work around this horribly broken OS in a somewhat hackish
84 way. might help other os's too.
85
863.25 Sat Jun 27 05:18:26 CEST 2009
87 - added IO::AIO::fadvise and IO::AIO::sendfile.
88 - (libeio) replaced quicksort+insertion sort by a tuned radix
89 sort + insertion sort, resulting in comparable runtime (usually
90 faster) to the old version, but without any ill side effects on
91 degenerated (for quicksort) data.
92 - (libeio) correctly sort dirs by inodes if we have perfect type
93 knowledge and DIRS_FIRST is used.
94 - (libeio) internally the wrong DT_* constants were used, but no
95 known system has differing EIO_DT_*/DT_* values, so not an issue.
96 - removed a (harmless) assert that was left over on the code
97 but should not have been.
98 - use more correct types (change IO length from IV to VAL64,
99 which makes a difference on systems without 64 bit perls).
100
1013.23 Sat Jun 13 16:57:58 CEST 2009
102 - fix off-by-one bug in aio_readdir that was introduced in the
103 rushed 3.22 release.
104
1053.22 Sat Jun 13 15:32:40 CEST 2009
106 - speed up readdirx sort algorithm slightly.
107 - bin/treescan was missing from distro tarball.
108
1093.21 Fri Jun 12 18:45:53 CEST 2009
110 - new options --dirs and --files for treescan.
111 - install bin/treescan by default.
112 - (libeio) aio_readdir can now be cancelled while executing.
113 - fix a printf format string for 64 bit systems (could lead
114 to problems on big endian 64 bit systems).
115 - do not use qsort() but our own algorithm: glibc initialises
116 the whole locale and I/O subsystem inside qsort, causing
117 a stack overflow on 32 bit machines. The new sort uses much less
118 stack and is more than twice as fast in typical situations.
119
1203.2 Sun Jun 7 20:30:05 CEST 2009
121 - (libeio) pwrite emulation was even more flawed than intended and did
122 not restore the file offset.
123 - add aio_readdirx, which can return inode and filetype and sort
124 the names in various ways.
125 - unfortunately, utime, chmod, chown on an open file that has just
126 been written can easily block, which caused aio_copy to block the
127 process. no more!
128 - no longer rely on dst path in aio_copy when futime is available.
129
1303.19 Tue Apr 21 22:05:21 CEST 2009
131 - more perl 5.10 workarounds for aio_read and write.
132 - aio_write no longer modifies the sv (if possible).
133 - aio_read now works correctly with magic values.
134
1353.18 Sun Apr 19 21:17:32 CEST 2009
136 - better diagnostics when some aio_* functions get passed an illegal fh.
137 - try to avoid crashes due to incompatible 5.10 API changes. grmbl.
138
1393.17 Thu Nov 20 08:45:36 CET 2008
140 - (libeio) added aio_sync_file_range (untested).
141 - add aio_busy to @IO::AIO::AIO_REQ.
142
1433.16 Wed Oct 22 18:28:01 CEST 2008
144 - use SvREFCNT_inc instead of SvREFCNT_inc_NN in a non-speed critical
145 part to improve portability to perl 5.8 (reported by szymon).
146
1473.15 Mon Oct 13 00:39:55 CEST 2008
148 - automatic removal of feeders was broken.
149 - (libeio) use a more robust method to detect whether a feeder
150 has added something to the group or not.
151
1523.1 Thu Oct 2 13:34:40 CEST 2008
153 - pre-deref the passed callback object, for increased speed
154 and decreased memory usage.
155 - call on_next_submit callback even for aio_group - impact unknown,
156 but seems more correct.
157 - $req->cb now returns the original callback.
158 - (libeio) pass EIO_GROUP/aio_group requests through the queue without
159 requiring a thread switch.
160 - (libeio) status code of aio_futime and aio_utime was always passed 0.
161 - do some other ยต-optimisations.
162
1633.07 Sat Aug 2 16:06:13 CEST 2008
164 - do not include LIBS in autoconf tests.
165
1663.06 Tue Jul 15 12:41:32 CEST 2008
167 - move preadwritelock definition before it's first reference,
168 to make it compile again on broken platforms (they still exist)
169 or badly cofngiured perls (redhat...), reported by Rob Bloodgood.
170
1713.05 Thu Jun 19 23:23:52 CEST 2008
172 - work around perl overriding readdir etc. with thread-unsafe
173 (sic!) versions.
174
1753.04 Wed Jun 18 01:35:38 CEST 2008
176 - (libeio) fix eio_mknod, which confused it's arguments.
177 - (libeio) do not use readdir_r, as Ulrich Drepper pointed out that this
178 is stupid.
179 - (libeio) fix eio__readahead prototype, patch by Jost Krieger.
180 - (libeio) fix a bug that could potentially cause IO::AIO
181 not to get initialised properly.
182
1833.03 Thu May 29 05:33:30 CEST 2008
184 - (libeio) correctly call pthread_attr_destroy ().
185 - (libeio) work around broken bsd headers once more.
186 - reduce shared library size again by not including wrappers.
187 - max_outstanding could cause poll to enter a busy-waiting loop.
188 - document the new IO::AIO::poll_cb result value.
189
1903.02 Mon May 12 02:32:02 CEST 2008
191 - fix a memory leak on aio_readlink.
192 - bring back working fchmod.
193 - nop and busy now set result to 0.
194 - set errno to ENOMEM when allocation fails.
195
1963.01 Sun May 11 03:07:03 CEST 2008
197 - (libeio) make it compile on systems without readahead or readdir_r.
198 - (libeio) improve configure check for readahead availability.
199 - do not try to link against -lrt.
200 - use a separate configure script for IO::AIO (not the libeio one).
201
2023.0 Sun May 11 00:57:14 CEST 2008
203 - added bin/treescan to the distribution.
204 - switched to using libeio.
205 - LOTS OF INCOMPATIBLE CHANGES:
206 - remove signal functionality, it is not worth the effort.
207 - max_outstanding no longer returns the previous number of requests.
208 - poll_cb no longer returns number of requests.
209
2102.62 Sat Apr 26 13:59:33 CEST 2008
211 - port to solaris perls configured for old posix
212 (analysed by Jost Krieger).
213 - keep a reference to the perl filehandle object in aio_close,
214 so it doesn't get closed prematurely, leading to ugly races.
215
2162.61 Wed Apr 16 18:45:02 CEST 2008
217 - fix treescan output duplication and improve output ordering.
218 also display files given on the commandline.
219 - use a different algorithm for aio_close that is faster
220 and probably has even lower chances of blocking.
221 - do our own stack memory management for threads - linux
222 allocates outrageous amounts of VM (not so bad unless you
223 use mlockall...), which severely limits the number of threads
224 on 32-bit arches: stack size is the larger of PTHREAD_STACK_MIN
225 and 4096 * sizeof (long) (usually this is 16..64k).
226
2272.6 Sun Mar 30 08:28:11 CEST 2008
228 - added aio_sync.
229 - added aio_pathsync.
230 - fix prototypes of (void) functions.
231
2322.51 Sat Oct 6 16:04:54 CEST 2007
233 - perlio isn't generally threadsafe, so aio_close could not work reliably.
234 aio_close now tries a safe hack that might not be that asynchronous
235 (see the manpage for details).
236 - discard callback return values as to not grow the stack endlessly
237 when poll_cb handles many requests without returning.
238 - minor code cleanups.
239
2402.5 Thu Oct 4 14:49:08 CEST 2007
241 - replaced _fd2fh with faster xs code.
242 - aio_close will now try to do "the right thing" and thus might
243 work sensibly for the very first time.
244
2452.41 Mon Sep 24 21:28:21 CEST 2007
246 - after fork, invest some work to make sure that the poll_fileno
247 stays stable (by dup2'ing the new fd over the old one), to make
248 it easier for programs/libs that don't control their forking
249 behaviour and cannot recreate their watchers.
250
2512.4 Sun Aug 5 18:44:22 CEST 2007
252 - add aio_truncate, aio_chmod, aio_chown, aio_utime (linux
253 successfully demonstrated that you can block on futimes...).
254 - allow undef as fileoffset for aio_read/write and use read/write(2)
255 internally (useful for sockets or O_APPEND handles).
256 - allow undef for length in aio_write.
257 - negative dataoffsets work as expected now in aio_read/aio_write.
258 - use NV instead of UV for 32 bit perls and file offsets, as NVs
259 have a larger range then.
260 - shared code between BDB and IO::AIO.
261 - aio_busy was completely broken. now fixed.
262 - readahead emulation now returns something.
263 - correctly set errno to ENOSYS on unimplemented functions
264 (should never happen, though).
265 - large changes to make it partially compile and run on win32,
266 but win32 lacks too much functionality, and perl overrides way
267 too many functions with crashing versions.
268
2692.33 Tue Jan 23 23:55:41 CET 2007
270 - fix install path (Andreas J. Koenig).
271
2722.32 Mon Jan 22 16:56:23 CET 2007
273 - added aio_rmtree.
274 - wow, aio_mkdir was missing.
275 - aio_load did return undef on error, not -1.
276 - use prefixexp not prefix in autoconf.pm
277 (suggested by ... rt.cpan.org unreachable).
278 - avoid installing autoconf.pm.
279
2802.31 Sat Jan 6 03:46:02 CET 2007
281 - added aio_load.
282
2832.3 Sat Dec 23 05:48:07 CET 2006
284 - fix off-by-one bug in aio_read, causing memory corruption
285 or crashes.
286
2872.21 Fri Dec 22 05:03:38 CET 2006
288 - minor doc updates.
289 - minor cleanups.
290 - IO::AIO::poll returns request count.
291 - undocumented and unfinished async-signal-reporting.
6 292
72.2 Tue Oct 31 00:31:00 CET 2006 2932.2 Tue Oct 31 00:31:00 CET 2006
8 - minor doc updates. 294 - minor doc updates.
9 - added aio_readlink. 295 - added aio_readlink.
10 - properly zero-terminate aio_read buffer. 296 - properly zero-terminate aio_read buffer.
11 - fix aio_read/write with nonzero dataoffset. 297 - fix aio_read/write with nonzero dataoffset.
12 - reduced size of aio request structure. 298 - reduced size of aio request structure.
13 - better diagnostics when pathnames etc. are unicode-encoded, 299 - better diagnostics when pathnames etc. are not byte-encoded;
14 do not leak request in that case, either. 300 do not leak request in that case, either.
15 301
162.1 Sun Oct 29 02:01:57 CET 2006 3022.1 Sun Oct 29 02:01:57 CET 2006
17 - INCOMPATIBLE CHANGE: replace IO::AIO::poll_some by 303 - INCOMPATIBLE CHANGE: replace IO::AIO::poll_some by
18 IO::AIO::max_poll_reqs and IO::AIO::max_poll_time. 304 IO::AIO::max_poll_reqs and IO::AIO::max_poll_time.

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