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Comparing IO-AIO/Changes (file contents):
Revision 1.33 by root, Wed Aug 17 03:01:56 2005 UTC vs.
Revision 1.166 by root, Tue Sep 30 13:17:32 2008 UTC

1Revision history for IO::AIO 1Revision history for IO::AIO
2 2
31.3 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/sync_file_range? (http://kerneltrap.org/node/6505 http://lwn.net/Articles/178199/)
7TODO: aio_fcntl, at least for file-locking
8
9 - call on_next_submit callback even fro aio_group - impact unknown,
10 but seems more correct.
11 - (libeio) pass EIO_GROUP/aio_group requests through the queue without
12 requiring a thread switch.
13 - do some other ยต-optimisations.
14
153.07 Sat Aug 2 16:06:13 CEST 2008
16 - do not include LIBS in autoconf tests.
17
183.06 Tue Jul 15 12:41:32 CEST 2008
19 - move preadwritelock definition before it's first reference,
20 to make it compile again on broken platforms (they still exist)
21 or badly cofngiured perls (redhat...), reported by Rob Bloodgood.
22
233.05 Thu Jun 19 23:23:52 CEST 2008
24 - work around perl overriding readdir etc. with thread-unsafe
25 (sic!) versions.
26
273.04 Wed Jun 18 01:35:38 CEST 2008
28 - (libeio) fix eio_mknod, which confused it's arguments.
29 - (libeio) do not use readdir_r, as Ulrich Drepper pointed out that this
30 is stupid.
31 - (libeio) fix eio__readahead prototype, patch by Jost Krieger.
32 - (libeio) fix a bug that could potentially cause IO::AIO
33 not to get initialised properly.
34
353.03 Thu May 29 05:33:30 CEST 2008
36 - (libeio) correctly call pthread_attr_destroy ().
37 - (libeio) work around broken bsd headers once more.
38 - reduce shared library size again by not including wrappers.
39 - max_outstanding could cause poll to enter a busy-waiting loop.
40 - document the new IO::AIO::poll_cb result value.
41
423.02 Mon May 12 02:32:02 CEST 2008
43 - fix a memory leak on aio_readlink.
44 - bring back working fchmod.
45 - nop and busy now set result to 0.
46 - set errno to ENOMEM when allocation fails.
47
483.01 Sun May 11 03:07:03 CEST 2008
49 - (libeio) make it compile on systems without readahead or readdir_r.
50 - (libeio) improve configure check for readahead availability.
51 - do not try to link against -lrt.
52 - use a separate configure script for IO::AIO (not the libeio one).
53
543.0 Sun May 11 00:57:14 CEST 2008
55 - added bin/treescan to the distribution.
56 - switched to using libeio.
57 - LOTS OF INCOMPATIBLE CHANGES:
58 - remove signal functionality, it is not worth the effort.
59 - max_outstanding no longer returns the previous number of requests.
60 - poll_cb no longer returns number of requests.
61
622.62 Sat Apr 26 13:59:33 CEST 2008
63 - port to solaris perls configured for old posix
64 (analysed by Jost Krieger).
65 - keep a reference to the perl filehandle object in aio_close,
66 so it doesn't get closed prematurely, leading to ugly races.
67
682.61 Wed Apr 16 18:45:02 CEST 2008
69 - fix treescan output duplication and improve output ordering.
70 also display files given on the commandline.
71 - use a different algorithm for aio_close that is faster
72 and probably has even lower chances of blocking.
73 - do our own stack memory management for threads - linux
74 allocates outrageous amounts of VM (not so bad unless you
75 use mlockall...), which severely limits the number of threads
76 on 32-bit arches: stack size is the larger of PTHREAD_STACK_MIN
77 and 4096 * sizeof (long) (usually this is 16..64k).
78
792.6 Sun Mar 30 08:28:11 CEST 2008
80 - added aio_sync.
81 - added aio_pathsync.
82 - fix prototypes of (void) functions.
83
842.51 Sat Oct 6 16:04:54 CEST 2007
85 - perlio isn't generally threadsafe, so aio_close could not work reliably.
86 aio_close now tries a safe hack that might not be that asynchronous
87 (see the manpage for details).
88 - discard callback return values as to not grow the stack endlessly
89 when poll_cb handles many requests without returning.
90 - minor code cleanups.
91
922.5 Thu Oct 4 14:49:08 CEST 2007
93 - replaced _fd2fh with faster xs code.
94 - aio_close will now try to do "the right thing" and thus might
95 work sensibly for the very first time.
96
972.41 Mon Sep 24 21:28:21 CEST 2007
98 - after fork, invest some work to make sure that the poll_fileno
99 stays stable (by dup2'ing the new fd over the old one), to make
100 it easier for programs/libs that don't control their forking
101 behaviour and cannot recreate their watchers.
102
1032.4 Sun Aug 5 18:44:22 CEST 2007
104 - add aio_truncate, aio_chmod, aio_chown, aio_utime (linux
105 successfully demonstrated that you can block on futimes...).
106 - allow undef as fileoffset for aio_read/write and use read/write(2)
107 internally (useful for sockets or O_APPEND handles).
108 - allow undef for length in aio_write.
109 - negative dataoffsets work as expected now in aio_read/aio_write.
110 - use NV instead of UV for 32 bit perls and file offsets, as NVs
111 have a larger range then.
112 - shared code between BDB and IO::AIO.
113 - aio_busy was completely broken. now fixed.
114 - readahead emulation now returns something.
115 - correctly set errno to ENOSYS on unimplemented functions
116 (should never happen, though).
117 - large changes to make it partially compile and run on win32,
118 but win32 lacks too much functionality, and perl overrides way
119 too many functions with crashing versions.
120
1212.33 Tue Jan 23 23:55:41 CET 2007
122 - fix install path (Andreas J. Koenig).
123
1242.32 Mon Jan 22 16:56:23 CET 2007
125 - added aio_rmtree.
126 - wow, aio_mkdir was missing.
127 - aio_load did return undef on error, not -1.
128 - use prefixexp not prefix in autoconf.pm
129 (suggested by ... rt.cpan.org unreachable).
130 - avoid installing autoconf.pm.
131
1322.31 Sat Jan 6 03:46:02 CET 2007
133 - added aio_load.
134
1352.3 Sat Dec 23 05:48:07 CET 2006
136 - fix off-by-one bug in aio_read, causing memory corruption
137 or crashes.
138
1392.21 Fri Dec 22 05:03:38 CET 2006
140 - minor doc updates.
141 - minor cleanups.
142 - IO::AIO::poll returns request count.
143 - undocumented and unfinished async-signal-reporting.
144
1452.2 Tue Oct 31 00:31:00 CET 2006
146 - minor doc updates.
147 - added aio_readlink.
148 - properly zero-terminate aio_read buffer.
149 - fix aio_read/write with nonzero dataoffset.
150 - reduced size of aio request structure.
151 - better diagnostics when pathnames etc. are not byte-encoded;
152 do not leak request in that case, either.
153
1542.1 Sun Oct 29 02:01:57 CET 2006
155 - INCOMPATIBLE CHANGE: replace IO::AIO::poll_some by
156 IO::AIO::max_poll_reqs and IO::AIO::max_poll_time.
157 - fix a bug in aio_move where it would fail everytime
158 it would have to copy files manually.
159 - doc updates.
160 - start threads only on (very low) demand.
161 - end superfluous threads automatically after 10s idling.
162 - add IO::AIO::max_idle to control this.
163 - some tuning applied to random places.
164 - add aio_mknod.
165
1662.0 Thu Oct 26 18:27:58 CEST 2006
167 - minor incompatibility: max_outstanding semantics have changed.
168 - major rewrite, consider all functionality EXPERIMENTAL.
169 - aio requests can be cancelled.
170 - callbacks can be (re-)set later.
171 - aio requests can choose between 9 priorities.
172 - add aio_group: aio requests can be grouped
173 into composite requests.
174 - generator interface for groups.
175 - add IO::AIO::poll_some.
176 - major documentation improvements.
177 - very minor bugfixes.
178 - add aio_nop for dummy requests.
179 - add aio_busy mainly for benchmarking and debugging.
180 - use "fast" mutexes on linux.
181 - use dynamic (and larger) buffers instead of
182 putting them onto the stack.
183 - optimise x86 and amd64 a bit.
184 - better error checking when ENOMEM.
185 - hopefully fix mem and dirp leaks on fork.
186 - warn about broken perl malloc.
187 - compiles on cygwin (but pread is broken on cygwin
188 which is not detected by autoconf, so you have to
189 edit autoconf/config.h yourself to enable emulation).
190
1911.8 Sat Jun 24 22:20:44 CEST 2006
192 - add and/or document aio_rename, aio_link, aio_symlink and aio_move.
193
1941.73 Wed Mar 1 22:49:32 CET 2006
195 - codename "jost"
196 - AIX/Solaris(?) aren't being helpful again, hardcode a value
197 for NAME_MAX and drive with your eyes closed (reported by
198 wcooley@nakedape.cc).
199
2001.72 Thu Feb 2 00:40:44 CET 2006
201 - another minor bug in aio_scandir, again, the callback was called
202 twice when the directory can't be stat'ed.
203
2041.71 Mon Dec 26 20:20:03 CET 2005
205 - grr, another minor bug in aio_scandir, this time resulting
206 in a runtime error.
207
2081.7 Mon Dec 26 19:29:48 CET 2005
209 - aio_scandir errornously called callback twice in some cases.
210 - added AnyEvent example.
211
2121.61 Wed Sep 7 19:40:42 CEST 2005
213 - no longer include $Config{libs}, as distros include too much
214 garbage in there that is not installed on typical systems
215 (for example, debian links perl against -lgdbm and many more
216 libraries despite perl not needing it, slowing down startup and
217 wasting memory).
218
2191.6 Tue Aug 30 17:44:44 CEST 2005
220 - added aio_readdir, aio_scandir.
221 - added aio_sendfile, including sendfile emulation when sendfile
222 isn't available. Linux, FreeBSD and HP-UX might work (sendfilev
223 support is unavailable on my solaris 8 machine, but preliminary
224 code is there. What's lacking is configury stuff and testing...).
225
2261.5 Sat Aug 20 02:32:19 CEST 2005
227 - create the aio threads on demand only (good after forking).
228 - somebody nagged about C89 compatibility, so this release should
229 be C89 compatible, but no guarantees for future ones.
230 - abort when the configure script fails.
231
2321.4 Wed Aug 17 08:07:27 CEST 2005
233 - forgot to recreate the pipe after forking, this could cause
234 deadlocks.
235
2361.3 Wed Aug 17 07:25:54 CEST 2005
4 - properly propagate exceptions from callbacks, instead of silently 237 - properly propagate exceptions from callbacks, instead of silently
5 eating them. 238 eating them.
239 - use a different fork algorithm that avoids recursive callback
240 invocations and reduces fork latency in busy processes.
241 - fix a bug where the buffer scalar in aio_read got assigned the wrong
242 length after reading.
243 - fix a bug where the child would process some outstanding requests
244 from the parent.
245 - make a copy of the callback scalar, to avoid some very uncommon
246 (but valid) usages where the callback scalar changes.
247 - the callback was never freed in aio_read/aio_write.
248 - aio_read/aio_write will now set the readonly flag on the data
249 scalar for better error reporting.
6 250
71.2 Wed Aug 17 01:22:58 CEST 2005 2511.2 Wed Aug 17 01:22:58 CEST 2005
8 - verified on cygwin, linux/amd64+ia32+alpha, solaris. 252 - verified on cygwin, linux/amd64+ia32+alpha, solaris.
9 - use SvPVbyte for filenames now. You *need* to encode your strings to 253 - use SvPVbyte for filenames now. You *need* to encode your strings to
10 the external filename encoding first. 254 the external filename encoding first.

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