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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 1.237 by root, Sun Sep 12 03:36:27 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 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: 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?
11O_EXEC
12O_SEARCH
13O_CLOEXEC
14O_DIRECTORY
15O_DSYNC
16O_NOCTTY
17O_NOFOLLOW
18O_NONBLOCK
19O_RSYNC
20O_SYNC
21O_TTY_INIT
8 22
92.6 23O_DIRECT
24O_LARGEFILE
25O_NOATIME
26O_ASYNC
27TODO: document/test madvise, mprotect
28TODO: aio_mlock/munlock, aio_mlockakk, munlockall
29 - do not leak memory in IO::AIO::mmap when the scalar already
30 had string-data.
31 - add O_RDWR, O_APPEND and O_EXCL symbols and semi-documented
32 them.
33 - cache the result IV, for a minor speedup in the common case.
34 - croak when an mmapped-scalar changes location, to detect
35 user-errors better.
36 - fix aio_readlink prototype.
37 - add madvise, mmap, munmap, aio_mlockall, munlockall,
38 aio_mlock, munlock, msync and mtouch to @EXPORT_OK.
39
403.65 Wed Mar 31 02:45:05 CEST 2010
41 - actually use PATH_MAX instead of NAME_MAX for readlink, as to not
42 cut off long pathnames in aio_readlink (based on patch by
43 Rasmus Andersson).
44 - a double fork partially killed the event pipe (great testcase
45 by dormando). affects IO::AIO, BDB and Async::Interrupt.
46 - suck steve's dick and rename our symbols to avoid colliding
47 with nonstandard identifier spam on the broken os x pseudo-os.
48 affects IO::AIO and BDB.
49
503.6 Mon Jan 11 00:43:39 CET 2010
51 - (libeio) more fixes for the freebsd/apple sendfile - broken by
52 manpage standards, but apparently correct accoridng to actual
53 kernel sources.
54 - add IO::AIO::mmap/munmap support.
55 - add IO::AIO::m(un)lockall support.
56 - clean up manpage.
57
583.5 Thu Jan 7 21:25:04 CET 2010
59 - (liebio) fix freebsd sendfile (Vanilla Hsu).
60 - (libeio) also fix darwin sendfile that suffered from a similar bug.
61 - add aio_statvfs as interface to statvfs/fstatvfs.
62 - work around buggy symlink() on cygwin in the testsuite.
63 - wtf. freebsd-8.0 actually passes the testsuite! I knew
64 they could implement fork and semaphores one day! cheers!
65
663.4 Sat Jan 2 15:13:04 CET 2010
67 - (libeio) max_poll_time was not properly converted to ticks.
68 - clarify cancel_subs description.
69 - IO::AIO::sendfile did not actually return the return value
70 from the sendfile call.
71 - implement aio_msync, aio_mtouch.
72 - (libeio) tentatively support darwin in sendfile.
73
743.31 Thu Nov 12 02:14:29 CET 2009
75 - fix result status documentation of aio_copy, aio_move.
76 - speed up object creation considerably by avoiding
77 hash lookups.
78
793.3 Wed Aug 5 13:52:58 CEST 2009
80 - use common::sense.
81 - use common schmorp.h header.
82 - allow integers (file descriptors) in addition to file handles.
83 - take advantage of linux' eventfd (but it seems slower on smp?).
84 - use poll not select on posix platforms.
85
863.261 Wed Jul 1 10:11:51 CEST 2009
87 - more 0S X workarounds (patch by Tokuhiro Matsuno).
88
893.26 Tue Jun 30 09:33:26 CEST 2009
90 - 0S X of course claims to be posix 2008 but lacks posix_fadvise.
91 try to work around this horribly broken OS in a somewhat hackish
92 way. might help other os's too.
93
943.25 Sat Jun 27 05:18:26 CEST 2009
95 - added IO::AIO::fadvise and IO::AIO::sendfile.
96 - (libeio) replaced quicksort+insertion sort by a tuned radix
97 sort + insertion sort, resulting in comparable runtime (usually
98 faster) to the old version, but without any ill side effects on
99 degenerated (for quicksort) data.
100 - (libeio) correctly sort dirs by inodes if we have perfect type
101 knowledge and DIRS_FIRST is used.
102 - (libeio) internally the wrong DT_* constants were used, but no
103 known system has differing EIO_DT_*/DT_* values, so not an issue.
104 - removed a (harmless) assert that was left over on the code
105 but should not have been.
106 - use more correct types (change IO length from IV to VAL64,
107 which makes a difference on systems without 64 bit perls).
108
1093.23 Sat Jun 13 16:57:58 CEST 2009
110 - fix off-by-one bug in aio_readdir that was introduced in the
111 rushed 3.22 release.
112
1133.22 Sat Jun 13 15:32:40 CEST 2009
114 - speed up readdirx sort algorithm slightly.
115 - bin/treescan was missing from distro tarball.
116
1173.21 Fri Jun 12 18:45:53 CEST 2009
118 - new options --dirs and --files for treescan.
119 - install bin/treescan by default.
120 - (libeio) aio_readdir can now be cancelled while executing.
121 - fix a printf format string for 64 bit systems (could lead
122 to problems on big endian 64 bit systems).
123 - do not use qsort() but our own algorithm: glibc initialises
124 the whole locale and I/O subsystem inside qsort, causing
125 a stack overflow on 32 bit machines. The new sort uses much less
126 stack and is more than twice as fast in typical situations.
127
1283.2 Sun Jun 7 20:30:05 CEST 2009
129 - (libeio) pwrite emulation was even more flawed than intended and did
130 not restore the file offset.
131 - add aio_readdirx, which can return inode and filetype and sort
132 the names in various ways.
133 - unfortunately, utime, chmod, chown on an open file that has just
134 been written can easily block, which caused aio_copy to block the
135 process. no more!
136 - no longer rely on dst path in aio_copy when futime is available.
137
1383.19 Tue Apr 21 22:05:21 CEST 2009
139 - more perl 5.10 workarounds for aio_read and write.
140 - aio_write no longer modifies the sv (if possible).
141 - aio_read now works correctly with magic values.
142
1433.18 Sun Apr 19 21:17:32 CEST 2009
144 - better diagnostics when some aio_* functions get passed an illegal fh.
145 - try to avoid crashes due to incompatible 5.10 API changes. grmbl.
146
1473.17 Thu Nov 20 08:45:36 CET 2008
148 - (libeio) added aio_sync_file_range (untested).
149 - add aio_busy to @IO::AIO::AIO_REQ.
150
1513.16 Wed Oct 22 18:28:01 CEST 2008
152 - use SvREFCNT_inc instead of SvREFCNT_inc_NN in a non-speed critical
153 part to improve portability to perl 5.8 (reported by szymon).
154
1553.15 Mon Oct 13 00:39:55 CEST 2008
156 - automatic removal of feeders was broken.
157 - (libeio) use a more robust method to detect whether a feeder
158 has added something to the group or not.
159
1603.1 Thu Oct 2 13:34:40 CEST 2008
161 - pre-deref the passed callback object, for increased speed
162 and decreased memory usage.
163 - call on_next_submit callback even for aio_group - impact unknown,
164 but seems more correct.
165 - $req->cb now returns the original callback.
166 - (libeio) pass EIO_GROUP/aio_group requests through the queue without
167 requiring a thread switch.
168 - (libeio) status code of aio_futime and aio_utime was always passed 0.
169 - do some other ยต-optimisations.
170
1713.07 Sat Aug 2 16:06:13 CEST 2008
172 - do not include LIBS in autoconf tests.
173
1743.06 Tue Jul 15 12:41:32 CEST 2008
175 - move preadwritelock definition before it's first reference,
176 to make it compile again on broken platforms (they still exist)
177 or badly cofngiured perls (redhat...), reported by Rob Bloodgood.
178
1793.05 Thu Jun 19 23:23:52 CEST 2008
180 - work around perl overriding readdir etc. with thread-unsafe
181 (sic!) versions.
182
1833.04 Wed Jun 18 01:35:38 CEST 2008
184 - (libeio) fix eio_mknod, which confused it's arguments.
185 - (libeio) do not use readdir_r, as Ulrich Drepper pointed out that this
186 is stupid.
187 - (libeio) fix eio__readahead prototype, patch by Jost Krieger.
188 - (libeio) fix a bug that could potentially cause IO::AIO
189 not to get initialised properly.
190
1913.03 Thu May 29 05:33:30 CEST 2008
192 - (libeio) correctly call pthread_attr_destroy ().
193 - (libeio) work around broken bsd headers once more.
194 - reduce shared library size again by not including wrappers.
195 - max_outstanding could cause poll to enter a busy-waiting loop.
196 - document the new IO::AIO::poll_cb result value.
197
1983.02 Mon May 12 02:32:02 CEST 2008
199 - fix a memory leak on aio_readlink.
200 - bring back working fchmod.
201 - nop and busy now set result to 0.
202 - set errno to ENOMEM when allocation fails.
203
2043.01 Sun May 11 03:07:03 CEST 2008
205 - (libeio) make it compile on systems without readahead or readdir_r.
206 - (libeio) improve configure check for readahead availability.
207 - do not try to link against -lrt.
208 - use a separate configure script for IO::AIO (not the libeio one).
209
2103.0 Sun May 11 00:57:14 CEST 2008
211 - added bin/treescan to the distribution.
212 - switched to using libeio.
213 - LOTS OF INCOMPATIBLE CHANGES:
214 - remove signal functionality, it is not worth the effort.
215 - max_outstanding no longer returns the previous number of requests.
216 - poll_cb no longer returns number of requests.
217
2182.62 Sat Apr 26 13:59:33 CEST 2008
219 - port to solaris perls configured for old posix
220 (analysed by Jost Krieger).
221 - keep a reference to the perl filehandle object in aio_close,
222 so it doesn't get closed prematurely, leading to ugly races.
223
2242.61 Wed Apr 16 18:45:02 CEST 2008
225 - fix treescan output duplication and improve output ordering.
226 also display files given on the commandline.
227 - use a different algorithm for aio_close that is faster
228 and probably has even lower chances of blocking.
229 - do our own stack memory management for threads - linux
230 allocates outrageous amounts of VM (not so bad unless you
231 use mlockall...), which severely limits the number of threads
232 on 32-bit arches: stack size is the larger of PTHREAD_STACK_MIN
233 and 4096 * sizeof (long) (usually this is 16..64k).
234
2352.6 Sun Mar 30 08:28:11 CEST 2008
10 - added aio_sync. 236 - added aio_sync.
237 - added aio_pathsync.
238 - fix prototypes of (void) functions.
11 239
122.51 Sat Oct 6 16:04:54 CEST 2007 2402.51 Sat Oct 6 16:04:54 CEST 2007
13 - perlio isn't generally threadsafe, so aio_close could not work reliably. 241 - 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 242 aio_close now tries a safe hack that might not be that asynchronous
15 (see the manpage for details). 243 (see the manpage for details).

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