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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 1.240 by root, Thu Dec 30 07:19:31 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?
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
8 12
92.6 133.71 Thu Dec 30 08:18:46 CET 2010
14 - the numerical result value passed to callbacks did not stringify
15 correctly, due to internal reuse and failure to reset the sv flags.
16 - actually test for posix_[mf]advise, as at least uClibc defines
17 _POSIX_ADVISORY_INFO without actually having any of the required
18 funcitonality. ugh.
19
203.7 Mon Nov 1 23:00:34 CET 2010
21 - implement/add madvise, mmap, munmap, aio_mlockall, munlockall,
22 aio_mlock, munlock, msync and mtouch to @EXPORT_OK.
23 - document the sad state of affairs w.r.t. pthread on many bsds.
24 - do not enable mmap on systems without _POSIX_MAPPED_FILES
25 (openbsd 4.8).
26 - do not leak memory in IO::AIO::mmap when the scalar already
27 had string-data.
28 - add O_RDWR, O_APPEND and O_EXCL symbols and semi-document
29 them.
30 - cache the result IV, for a minor speedup in the common case.
31 - croak when an mmapped-scalar changes location, to detect
32 user-errors better.
33 - fix aio_readlink prototype.
34
353.65 Wed Mar 31 02:45:05 CEST 2010
36 - actually use PATH_MAX instead of NAME_MAX for readlink, as to not
37 cut off long pathnames in aio_readlink (based on patch by
38 Rasmus Andersson).
39 - a double fork partially killed the event pipe (great testcase
40 by dormando). affects IO::AIO, BDB and Async::Interrupt.
41 - suck steve's dick and rename our symbols to avoid colliding
42 with nonstandard identifier spam on the broken os x pseudo-os.
43 affects IO::AIO and BDB.
44
453.6 Mon Jan 11 00:43:39 CET 2010
46 - (libeio) more fixes for the freebsd/apple sendfile - broken by
47 manpage standards, but apparently correct accoridng to actual
48 kernel sources.
49 - add IO::AIO::mmap/munmap support.
50 - add IO::AIO::m(un)lockall support.
51 - clean up manpage.
52
533.5 Thu Jan 7 21:25:04 CET 2010
54 - (liebio) fix freebsd sendfile (Vanilla Hsu).
55 - (libeio) also fix darwin sendfile that suffered from a similar bug.
56 - add aio_statvfs as interface to statvfs/fstatvfs.
57 - work around buggy symlink() on cygwin in the testsuite.
58 - wtf. freebsd-8.0 actually passes the testsuite! I knew
59 they could implement fork and semaphores one day! cheers!
60
613.4 Sat Jan 2 15:13:04 CET 2010
62 - (libeio) max_poll_time was not properly converted to ticks.
63 - clarify cancel_subs description.
64 - IO::AIO::sendfile did not actually return the return value
65 from the sendfile call.
66 - implement aio_msync, aio_mtouch.
67 - (libeio) tentatively support darwin in sendfile.
68
693.31 Thu Nov 12 02:14:29 CET 2009
70 - fix result status documentation of aio_copy, aio_move.
71 - speed up object creation considerably by avoiding
72 hash lookups.
73
743.3 Wed Aug 5 13:52:58 CEST 2009
75 - use common::sense.
76 - use common schmorp.h header.
77 - allow integers (file descriptors) in addition to file handles.
78 - take advantage of linux' eventfd (but it seems slower on smp?).
79 - use poll not select on posix platforms.
80
813.261 Wed Jul 1 10:11:51 CEST 2009
82 - more 0S X workarounds (patch by Tokuhiro Matsuno).
83
843.26 Tue Jun 30 09:33:26 CEST 2009
85 - 0S X of course claims to be posix 2008 but lacks posix_fadvise.
86 try to work around this horribly broken OS in a somewhat hackish
87 way. might help other os's too.
88
893.25 Sat Jun 27 05:18:26 CEST 2009
90 - added IO::AIO::fadvise and IO::AIO::sendfile.
91 - (libeio) replaced quicksort+insertion sort by a tuned radix
92 sort + insertion sort, resulting in comparable runtime (usually
93 faster) to the old version, but without any ill side effects on
94 degenerated (for quicksort) data.
95 - (libeio) correctly sort dirs by inodes if we have perfect type
96 knowledge and DIRS_FIRST is used.
97 - (libeio) internally the wrong DT_* constants were used, but no
98 known system has differing EIO_DT_*/DT_* values, so not an issue.
99 - removed a (harmless) assert that was left over on the code
100 but should not have been.
101 - use more correct types (change IO length from IV to VAL64,
102 which makes a difference on systems without 64 bit perls).
103
1043.23 Sat Jun 13 16:57:58 CEST 2009
105 - fix off-by-one bug in aio_readdir that was introduced in the
106 rushed 3.22 release.
107
1083.22 Sat Jun 13 15:32:40 CEST 2009
109 - speed up readdirx sort algorithm slightly.
110 - bin/treescan was missing from distro tarball.
111
1123.21 Fri Jun 12 18:45:53 CEST 2009
113 - new options --dirs and --files for treescan.
114 - install bin/treescan by default.
115 - (libeio) aio_readdir can now be cancelled while executing.
116 - fix a printf format string for 64 bit systems (could lead
117 to problems on big endian 64 bit systems).
118 - do not use qsort() but our own algorithm: glibc initialises
119 the whole locale and I/O subsystem inside qsort, causing
120 a stack overflow on 32 bit machines. The new sort uses much less
121 stack and is more than twice as fast in typical situations.
122
1233.2 Sun Jun 7 20:30:05 CEST 2009
124 - (libeio) pwrite emulation was even more flawed than intended and did
125 not restore the file offset.
126 - add aio_readdirx, which can return inode and filetype and sort
127 the names in various ways.
128 - unfortunately, utime, chmod, chown on an open file that has just
129 been written can easily block, which caused aio_copy to block the
130 process. no more!
131 - no longer rely on dst path in aio_copy when futime is available.
132
1333.19 Tue Apr 21 22:05:21 CEST 2009
134 - more perl 5.10 workarounds for aio_read and write.
135 - aio_write no longer modifies the sv (if possible).
136 - aio_read now works correctly with magic values.
137
1383.18 Sun Apr 19 21:17:32 CEST 2009
139 - better diagnostics when some aio_* functions get passed an illegal fh.
140 - try to avoid crashes due to incompatible 5.10 API changes. grmbl.
141
1423.17 Thu Nov 20 08:45:36 CET 2008
143 - (libeio) added aio_sync_file_range (untested).
144 - add aio_busy to @IO::AIO::AIO_REQ.
145
1463.16 Wed Oct 22 18:28:01 CEST 2008
147 - use SvREFCNT_inc instead of SvREFCNT_inc_NN in a non-speed critical
148 part to improve portability to perl 5.8 (reported by szymon).
149
1503.15 Mon Oct 13 00:39:55 CEST 2008
151 - automatic removal of feeders was broken.
152 - (libeio) use a more robust method to detect whether a feeder
153 has added something to the group or not.
154
1553.1 Thu Oct 2 13:34:40 CEST 2008
156 - pre-deref the passed callback object, for increased speed
157 and decreased memory usage.
158 - call on_next_submit callback even for aio_group - impact unknown,
159 but seems more correct.
160 - $req->cb now returns the original callback.
161 - (libeio) pass EIO_GROUP/aio_group requests through the queue without
162 requiring a thread switch.
163 - (libeio) status code of aio_futime and aio_utime was always passed 0.
164 - do some other ยต-optimisations.
165
1663.07 Sat Aug 2 16:06:13 CEST 2008
167 - do not include LIBS in autoconf tests.
168
1693.06 Tue Jul 15 12:41:32 CEST 2008
170 - move preadwritelock definition before it's first reference,
171 to make it compile again on broken platforms (they still exist)
172 or badly cofngiured perls (redhat...), reported by Rob Bloodgood.
173
1743.05 Thu Jun 19 23:23:52 CEST 2008
175 - work around perl overriding readdir etc. with thread-unsafe
176 (sic!) versions.
177
1783.04 Wed Jun 18 01:35:38 CEST 2008
179 - (libeio) fix eio_mknod, which confused it's arguments.
180 - (libeio) do not use readdir_r, as Ulrich Drepper pointed out that this
181 is stupid.
182 - (libeio) fix eio__readahead prototype, patch by Jost Krieger.
183 - (libeio) fix a bug that could potentially cause IO::AIO
184 not to get initialised properly.
185
1863.03 Thu May 29 05:33:30 CEST 2008
187 - (libeio) correctly call pthread_attr_destroy ().
188 - (libeio) work around broken bsd headers once more.
189 - reduce shared library size again by not including wrappers.
190 - max_outstanding could cause poll to enter a busy-waiting loop.
191 - document the new IO::AIO::poll_cb result value.
192
1933.02 Mon May 12 02:32:02 CEST 2008
194 - fix a memory leak on aio_readlink.
195 - bring back working fchmod.
196 - nop and busy now set result to 0.
197 - set errno to ENOMEM when allocation fails.
198
1993.01 Sun May 11 03:07:03 CEST 2008
200 - (libeio) make it compile on systems without readahead or readdir_r.
201 - (libeio) improve configure check for readahead availability.
202 - do not try to link against -lrt.
203 - use a separate configure script for IO::AIO (not the libeio one).
204
2053.0 Sun May 11 00:57:14 CEST 2008
206 - added bin/treescan to the distribution.
207 - switched to using libeio.
208 - LOTS OF INCOMPATIBLE CHANGES:
209 - remove signal functionality, it is not worth the effort.
210 - max_outstanding no longer returns the previous number of requests.
211 - poll_cb no longer returns number of requests.
212
2132.62 Sat Apr 26 13:59:33 CEST 2008
214 - port to solaris perls configured for old posix
215 (analysed by Jost Krieger).
216 - keep a reference to the perl filehandle object in aio_close,
217 so it doesn't get closed prematurely, leading to ugly races.
218
2192.61 Wed Apr 16 18:45:02 CEST 2008
220 - fix treescan output duplication and improve output ordering.
221 also display files given on the commandline.
222 - use a different algorithm for aio_close that is faster
223 and probably has even lower chances of blocking.
224 - do our own stack memory management for threads - linux
225 allocates outrageous amounts of VM (not so bad unless you
226 use mlockall...), which severely limits the number of threads
227 on 32-bit arches: stack size is the larger of PTHREAD_STACK_MIN
228 and 4096 * sizeof (long) (usually this is 16..64k).
229
2302.6 Sun Mar 30 08:28:11 CEST 2008
10 - added aio_sync. 231 - added aio_sync.
232 - added aio_pathsync.
233 - fix prototypes of (void) functions.
11 234
122.51 Sat Oct 6 16:04:54 CEST 2007 2352.51 Sat Oct 6 16:04:54 CEST 2007
13 - perlio isn't generally threadsafe, so aio_close could not work reliably. 236 - 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 237 aio_close now tries a safe hack that might not be that asynchronous
15 (see the manpage for details). 238 (see the manpage for details).

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