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Comparing IO-AIO/Changes (file contents):
Revision 1.125 by root, Fri Jun 1 14:40:01 2007 UTC vs.
Revision 1.252 by root, Sun Jun 5 20:25:00 2011 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?
8 10
92.4 11TODO: MS_xxx
10 - fix aio_busy w.r.t. fractional delays. 12
11 - add aio_chmod, aio_chown, aio_utime (linux successfully demonstrated 133.9 Fri May 27 02:43:47 CEST 2011
14 - (libeio) fix memory corruption in aio_readdirx for the flags
15 combination READDIR_STAT_ORDER | READDIR_DIRS_FIRST.
16 - add lots of newre POSIX and GNU/Linux-specific open
17 flags.
18
193.8 Sun Mar 27 12:25:33 CEST 2011
20 - use nonstandard but maybe-working-on-bsd fork technique.
21 - support a max_idle value of 0.
22 - support setting of idle timeout value (IO::AIO::idle_timeout).
23
243.72 Fri Feb 11 04:25:38 CET 2011
25 - use _POSIX_MEMLOCK_RANGE to detect mlock/munlock.
26 - aio_mknod always used a dev_t value of 0.
27 - new treescan option: --grep.
28 - add more S_IF macros, and major/minor/makedev "macros".
29
303.71 Thu Dec 30 08:18:46 CET 2010
31 - the numerical result value passed to callbacks did not stringify
32 correctly, due to internal reuse and failure to reset the sv flags.
33 - actually test for posix_[mf]advise, as at least uClibc defines
34 _POSIX_ADVISORY_INFO without actually having any of the required
35 funcitonality. ugh.
36
373.7 Mon Nov 1 23:00:34 CET 2010
38 - implement/add madvise, mmap, munmap, aio_mlockall, munlockall,
39 aio_mlock, munlock, msync and mtouch to @EXPORT_OK.
40 - document the sad state of affairs w.r.t. pthread on many bsds.
41 - do not enable mmap on systems without _POSIX_MAPPED_FILES
42 (openbsd 4.8).
43 - do not leak memory in IO::AIO::mmap when the scalar already
44 had string-data.
45 - add O_RDWR, O_APPEND and O_EXCL symbols and semi-document
46 them.
47 - cache the result IV, for a minor speedup in the common case.
48 - croak when an mmapped-scalar changes location, to detect
49 user-errors better.
50 - fix aio_readlink prototype.
51
523.65 Wed Mar 31 02:45:05 CEST 2010
53 - actually use PATH_MAX instead of NAME_MAX for readlink, as to not
54 cut off long pathnames in aio_readlink (based on patch by
55 Rasmus Andersson).
56 - a double fork partially killed the event pipe (great testcase
57 by dormando). affects IO::AIO, BDB and Async::Interrupt.
58 - suck steve's dick and rename our symbols to avoid colliding
59 with nonstandard identifier spam on the broken os x pseudo-os.
60 affects IO::AIO and BDB.
61
623.6 Mon Jan 11 00:43:39 CET 2010
63 - (libeio) more fixes for the freebsd/apple sendfile - broken by
64 manpage standards, but apparently correct accoridng to actual
65 kernel sources.
66 - add IO::AIO::mmap/munmap support.
67 - add IO::AIO::m(un)lockall support.
68 - clean up manpage.
69
703.5 Thu Jan 7 21:25:04 CET 2010
71 - (liebio) fix freebsd sendfile (Vanilla Hsu).
72 - (libeio) also fix darwin sendfile that suffered from a similar bug.
73 - add aio_statvfs as interface to statvfs/fstatvfs.
74 - work around buggy symlink() on cygwin in the testsuite.
75 - wtf. freebsd-8.0 actually passes the testsuite! I knew
76 they could implement fork and semaphores one day! cheers!
77
783.4 Sat Jan 2 15:13:04 CET 2010
79 - (libeio) max_poll_time was not properly converted to ticks.
80 - clarify cancel_subs description.
81 - IO::AIO::sendfile did not actually return the return value
82 from the sendfile call.
83 - implement aio_msync, aio_mtouch.
84 - (libeio) tentatively support darwin in sendfile.
85
863.31 Thu Nov 12 02:14:29 CET 2009
87 - fix result status documentation of aio_copy, aio_move.
88 - speed up object creation considerably by avoiding
89 hash lookups.
90
913.3 Wed Aug 5 13:52:58 CEST 2009
92 - use common::sense.
93 - use common schmorp.h header.
94 - allow integers (file descriptors) in addition to file handles.
95 - take advantage of linux' eventfd (but it seems slower on smp?).
96 - use poll not select on posix platforms.
97
983.261 Wed Jul 1 10:11:51 CEST 2009
99 - more 0S X workarounds (patch by Tokuhiro Matsuno).
100
1013.26 Tue Jun 30 09:33:26 CEST 2009
102 - 0S X of course claims to be posix 2008 but lacks posix_fadvise.
103 try to work around this horribly broken OS in a somewhat hackish
104 way. might help other os's too.
105
1063.25 Sat Jun 27 05:18:26 CEST 2009
107 - added IO::AIO::fadvise and IO::AIO::sendfile.
108 - (libeio) replaced quicksort+insertion sort by a tuned radix
109 sort + insertion sort, resulting in comparable runtime (usually
110 faster) to the old version, but without any ill side effects on
111 degenerated (for quicksort) data.
112 - (libeio) correctly sort dirs by inodes if we have perfect type
113 knowledge and DIRS_FIRST is used.
114 - (libeio) internally the wrong DT_* constants were used, but no
115 known system has differing EIO_DT_*/DT_* values, so not an issue.
116 - removed a (harmless) assert that was left over on the code
117 but should not have been.
118 - use more correct types (change IO length from IV to VAL64,
119 which makes a difference on systems without 64 bit perls).
120
1213.23 Sat Jun 13 16:57:58 CEST 2009
122 - fix off-by-one bug in aio_readdir that was introduced in the
123 rushed 3.22 release.
124
1253.22 Sat Jun 13 15:32:40 CEST 2009
126 - speed up readdirx sort algorithm slightly.
127 - bin/treescan was missing from distro tarball.
128
1293.21 Fri Jun 12 18:45:53 CEST 2009
130 - new options --dirs and --files for treescan.
131 - install bin/treescan by default.
132 - (libeio) aio_readdir can now be cancelled while executing.
133 - fix a printf format string for 64 bit systems (could lead
134 to problems on big endian 64 bit systems).
135 - do not use qsort() but our own algorithm: glibc initialises
136 the whole locale and I/O subsystem inside qsort, causing
137 a stack overflow on 32 bit machines. The new sort uses much less
138 stack and is more than twice as fast in typical situations.
139
1403.2 Sun Jun 7 20:30:05 CEST 2009
141 - (libeio) pwrite emulation was even more flawed than intended and did
142 not restore the file offset.
143 - add aio_readdirx, which can return inode and filetype and sort
144 the names in various ways.
145 - unfortunately, utime, chmod, chown on an open file that has just
146 been written can easily block, which caused aio_copy to block the
147 process. no more!
148 - no longer rely on dst path in aio_copy when futime is available.
149
1503.19 Tue Apr 21 22:05:21 CEST 2009
151 - more perl 5.10 workarounds for aio_read and write.
152 - aio_write no longer modifies the sv (if possible).
153 - aio_read now works correctly with magic values.
154
1553.18 Sun Apr 19 21:17:32 CEST 2009
156 - better diagnostics when some aio_* functions get passed an illegal fh.
157 - try to avoid crashes due to incompatible 5.10 API changes. grmbl.
158
1593.17 Thu Nov 20 08:45:36 CET 2008
160 - (libeio) added aio_sync_file_range (untested).
161 - add aio_busy to @IO::AIO::AIO_REQ.
162
1633.16 Wed Oct 22 18:28:01 CEST 2008
164 - use SvREFCNT_inc instead of SvREFCNT_inc_NN in a non-speed critical
165 part to improve portability to perl 5.8 (reported by szymon).
166
1673.15 Mon Oct 13 00:39:55 CEST 2008
168 - automatic removal of feeders was broken.
169 - (libeio) use a more robust method to detect whether a feeder
170 has added something to the group or not.
171
1723.1 Thu Oct 2 13:34:40 CEST 2008
173 - pre-deref the passed callback object, for increased speed
174 and decreased memory usage.
175 - call on_next_submit callback even for aio_group - impact unknown,
176 but seems more correct.
177 - $req->cb now returns the original callback.
178 - (libeio) pass EIO_GROUP/aio_group requests through the queue without
179 requiring a thread switch.
180 - (libeio) status code of aio_futime and aio_utime was always passed 0.
181 - do some other ยต-optimisations.
182
1833.07 Sat Aug 2 16:06:13 CEST 2008
184 - do not include LIBS in autoconf tests.
185
1863.06 Tue Jul 15 12:41:32 CEST 2008
187 - move preadwritelock definition before it's first reference,
188 to make it compile again on broken platforms (they still exist)
189 or badly cofngiured perls (redhat...), reported by Rob Bloodgood.
190
1913.05 Thu Jun 19 23:23:52 CEST 2008
192 - work around perl overriding readdir etc. with thread-unsafe
193 (sic!) versions.
194
1953.04 Wed Jun 18 01:35:38 CEST 2008
196 - (libeio) fix eio_mknod, which confused it's arguments.
197 - (libeio) do not use readdir_r, as Ulrich Drepper pointed out that this
198 is stupid.
199 - (libeio) fix eio__readahead prototype, patch by Jost Krieger.
200 - (libeio) fix a bug that could potentially cause IO::AIO
201 not to get initialised properly.
202
2033.03 Thu May 29 05:33:30 CEST 2008
204 - (libeio) correctly call pthread_attr_destroy ().
205 - (libeio) work around broken bsd headers once more.
206 - reduce shared library size again by not including wrappers.
207 - max_outstanding could cause poll to enter a busy-waiting loop.
208 - document the new IO::AIO::poll_cb result value.
209
2103.02 Mon May 12 02:32:02 CEST 2008
211 - fix a memory leak on aio_readlink.
212 - bring back working fchmod.
213 - nop and busy now set result to 0.
214 - set errno to ENOMEM when allocation fails.
215
2163.01 Sun May 11 03:07:03 CEST 2008
217 - (libeio) make it compile on systems without readahead or readdir_r.
218 - (libeio) improve configure check for readahead availability.
219 - do not try to link against -lrt.
220 - use a separate configure script for IO::AIO (not the libeio one).
221
2223.0 Sun May 11 00:57:14 CEST 2008
223 - added bin/treescan to the distribution.
224 - switched to using libeio.
225 - LOTS OF INCOMPATIBLE CHANGES:
226 - remove signal functionality, it is not worth the effort.
227 - max_outstanding no longer returns the previous number of requests.
228 - poll_cb no longer returns number of requests.
229
2302.62 Sat Apr 26 13:59:33 CEST 2008
231 - port to solaris perls configured for old posix
232 (analysed by Jost Krieger).
233 - keep a reference to the perl filehandle object in aio_close,
234 so it doesn't get closed prematurely, leading to ugly races.
235
2362.61 Wed Apr 16 18:45:02 CEST 2008
237 - fix treescan output duplication and improve output ordering.
238 also display files given on the commandline.
239 - use a different algorithm for aio_close that is faster
240 and probably has even lower chances of blocking.
241 - do our own stack memory management for threads - linux
242 allocates outrageous amounts of VM (not so bad unless you
243 use mlockall...), which severely limits the number of threads
244 on 32-bit arches: stack size is the larger of PTHREAD_STACK_MIN
245 and 4096 * sizeof (long) (usually this is 16..64k).
246
2472.6 Sun Mar 30 08:28:11 CEST 2008
248 - added aio_sync.
249 - added aio_pathsync.
250 - fix prototypes of (void) functions.
251
2522.51 Sat Oct 6 16:04:54 CEST 2007
253 - perlio isn't generally threadsafe, so aio_close could not work reliably.
254 aio_close now tries a safe hack that might not be that asynchronous
255 (see the manpage for details).
256 - discard callback return values as to not grow the stack endlessly
257 when poll_cb handles many requests without returning.
258 - minor code cleanups.
259
2602.5 Thu Oct 4 14:49:08 CEST 2007
261 - replaced _fd2fh with faster xs code.
262 - aio_close will now try to do "the right thing" and thus might
263 work sensibly for the very first time.
264
2652.41 Mon Sep 24 21:28:21 CEST 2007
266 - after fork, invest some work to make sure that the poll_fileno
267 stays stable (by dup2'ing the new fd over the old one), to make
268 it easier for programs/libs that don't control their forking
269 behaviour and cannot recreate their watchers.
270
2712.4 Sun Aug 5 18:44:22 CEST 2007
272 - add aio_truncate, aio_chmod, aio_chown, aio_utime (linux
12 that you can block on futimes...). 273 successfully demonstrated that you can block on futimes...).
13 - allow undef as fileoffset for aio_read/write and use read/write(2) 274 - allow undef as fileoffset for aio_read/write and use read/write(2)
14 internally (useful for sockets or O_APPEND handles). 275 internally (useful for sockets or O_APPEND handles).
276 - allow undef for length in aio_write.
277 - negative dataoffsets work as expected now in aio_read/aio_write.
15 - use NV instead of UV for 32 bit perls and file offsets, as NVs 278 - use NV instead of UV for 32 bit perls and file offsets, as NVs
16 have a larger range then. 279 have a larger range then.
17 - shared code between BDB and IO::AIO. 280 - shared code between BDB and IO::AIO.
281 - aio_busy was completely broken. now fixed.
282 - readahead emulation now returns something.
18 - correctly set errno to ENOSYS on unimplemented functions 283 - correctly set errno to ENOSYS on unimplemented functions
19 (should never happen, though). 284 (should never happen, though).
285 - large changes to make it partially compile and run on win32,
286 but win32 lacks too much functionality, and perl overrides way
287 too many functions with crashing versions.
20 288
212.33 Tue Jan 23 23:55:41 CET 2007 2892.33 Tue Jan 23 23:55:41 CET 2007
22 - fix install path (Andreas J. Koenig). 290 - fix install path (Andreas J. Koenig).
23 291
242.32 Mon Jan 22 16:56:23 CET 2007 2922.32 Mon Jan 22 16:56:23 CET 2007

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