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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 1.250 by root, Thu May 26 03:51:55 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?
10TODO: add? also linux-specific stuff?
8 11
92.4 12 const_iv (O_ASYNC)
10 - fix aio_busy w.r.t. fractional delays. 13 const_iv (O_DIRECT)
11 - add aio_chmod, aio_chown, aio_utime (linux successfully demonstrated 14 const_iv (O_NOATIME)
15
16 const_iv (O_CLOEXEC)
17 const_iv (O_NOCTTY)
18 const_iv (O_NOFOLLOW)
19 const_iv (O_NONBLOCK)
20 const_iv (O_EXEC)
21 const_iv (O_SEARCH)
22 const_iv (O_DIRECTORY)
23 const_iv (O_DSYNC)
24 const_iv (O_RSYNC)
25 const_iv (O_SYNC)
26 const_iv (O_TTY_INIT)
27
28 - (libeio) fix memory corruption in aio_readdirx for the flags
29 combination READDIR_STAT_ORDER | READDIR_DIRS_FIRST.
30
313.8 Sun Mar 27 12:25:33 CEST 2011
32 - use nonstandard but maybe-working-on-bsd fork technique.
33 - support a max_idle value of 0.
34 - support setting of idle timeout value (IO::AIO::idle_timeout).
35
363.72 Fri Feb 11 04:25:38 CET 2011
37 - use _POSIX_MEMLOCK_RANGE to detect mlock/munlock.
38 - aio_mknod always used a dev_t value of 0.
39 - new treescan option: --grep.
40 - add more S_IF macros, and major/minor/makedev "macros".
41
423.71 Thu Dec 30 08:18:46 CET 2010
43 - the numerical result value passed to callbacks did not stringify
44 correctly, due to internal reuse and failure to reset the sv flags.
45 - actually test for posix_[mf]advise, as at least uClibc defines
46 _POSIX_ADVISORY_INFO without actually having any of the required
47 funcitonality. ugh.
48
493.7 Mon Nov 1 23:00:34 CET 2010
50 - implement/add madvise, mmap, munmap, aio_mlockall, munlockall,
51 aio_mlock, munlock, msync and mtouch to @EXPORT_OK.
52 - document the sad state of affairs w.r.t. pthread on many bsds.
53 - do not enable mmap on systems without _POSIX_MAPPED_FILES
54 (openbsd 4.8).
55 - do not leak memory in IO::AIO::mmap when the scalar already
56 had string-data.
57 - add O_RDWR, O_APPEND and O_EXCL symbols and semi-document
58 them.
59 - cache the result IV, for a minor speedup in the common case.
60 - croak when an mmapped-scalar changes location, to detect
61 user-errors better.
62 - fix aio_readlink prototype.
63
643.65 Wed Mar 31 02:45:05 CEST 2010
65 - actually use PATH_MAX instead of NAME_MAX for readlink, as to not
66 cut off long pathnames in aio_readlink (based on patch by
67 Rasmus Andersson).
68 - a double fork partially killed the event pipe (great testcase
69 by dormando). affects IO::AIO, BDB and Async::Interrupt.
70 - suck steve's dick and rename our symbols to avoid colliding
71 with nonstandard identifier spam on the broken os x pseudo-os.
72 affects IO::AIO and BDB.
73
743.6 Mon Jan 11 00:43:39 CET 2010
75 - (libeio) more fixes for the freebsd/apple sendfile - broken by
76 manpage standards, but apparently correct accoridng to actual
77 kernel sources.
78 - add IO::AIO::mmap/munmap support.
79 - add IO::AIO::m(un)lockall support.
80 - clean up manpage.
81
823.5 Thu Jan 7 21:25:04 CET 2010
83 - (liebio) fix freebsd sendfile (Vanilla Hsu).
84 - (libeio) also fix darwin sendfile that suffered from a similar bug.
85 - add aio_statvfs as interface to statvfs/fstatvfs.
86 - work around buggy symlink() on cygwin in the testsuite.
87 - wtf. freebsd-8.0 actually passes the testsuite! I knew
88 they could implement fork and semaphores one day! cheers!
89
903.4 Sat Jan 2 15:13:04 CET 2010
91 - (libeio) max_poll_time was not properly converted to ticks.
92 - clarify cancel_subs description.
93 - IO::AIO::sendfile did not actually return the return value
94 from the sendfile call.
95 - implement aio_msync, aio_mtouch.
96 - (libeio) tentatively support darwin in sendfile.
97
983.31 Thu Nov 12 02:14:29 CET 2009
99 - fix result status documentation of aio_copy, aio_move.
100 - speed up object creation considerably by avoiding
101 hash lookups.
102
1033.3 Wed Aug 5 13:52:58 CEST 2009
104 - use common::sense.
105 - use common schmorp.h header.
106 - allow integers (file descriptors) in addition to file handles.
107 - take advantage of linux' eventfd (but it seems slower on smp?).
108 - use poll not select on posix platforms.
109
1103.261 Wed Jul 1 10:11:51 CEST 2009
111 - more 0S X workarounds (patch by Tokuhiro Matsuno).
112
1133.26 Tue Jun 30 09:33:26 CEST 2009
114 - 0S X of course claims to be posix 2008 but lacks posix_fadvise.
115 try to work around this horribly broken OS in a somewhat hackish
116 way. might help other os's too.
117
1183.25 Sat Jun 27 05:18:26 CEST 2009
119 - added IO::AIO::fadvise and IO::AIO::sendfile.
120 - (libeio) replaced quicksort+insertion sort by a tuned radix
121 sort + insertion sort, resulting in comparable runtime (usually
122 faster) to the old version, but without any ill side effects on
123 degenerated (for quicksort) data.
124 - (libeio) correctly sort dirs by inodes if we have perfect type
125 knowledge and DIRS_FIRST is used.
126 - (libeio) internally the wrong DT_* constants were used, but no
127 known system has differing EIO_DT_*/DT_* values, so not an issue.
128 - removed a (harmless) assert that was left over on the code
129 but should not have been.
130 - use more correct types (change IO length from IV to VAL64,
131 which makes a difference on systems without 64 bit perls).
132
1333.23 Sat Jun 13 16:57:58 CEST 2009
134 - fix off-by-one bug in aio_readdir that was introduced in the
135 rushed 3.22 release.
136
1373.22 Sat Jun 13 15:32:40 CEST 2009
138 - speed up readdirx sort algorithm slightly.
139 - bin/treescan was missing from distro tarball.
140
1413.21 Fri Jun 12 18:45:53 CEST 2009
142 - new options --dirs and --files for treescan.
143 - install bin/treescan by default.
144 - (libeio) aio_readdir can now be cancelled while executing.
145 - fix a printf format string for 64 bit systems (could lead
146 to problems on big endian 64 bit systems).
147 - do not use qsort() but our own algorithm: glibc initialises
148 the whole locale and I/O subsystem inside qsort, causing
149 a stack overflow on 32 bit machines. The new sort uses much less
150 stack and is more than twice as fast in typical situations.
151
1523.2 Sun Jun 7 20:30:05 CEST 2009
153 - (libeio) pwrite emulation was even more flawed than intended and did
154 not restore the file offset.
155 - add aio_readdirx, which can return inode and filetype and sort
156 the names in various ways.
157 - unfortunately, utime, chmod, chown on an open file that has just
158 been written can easily block, which caused aio_copy to block the
159 process. no more!
160 - no longer rely on dst path in aio_copy when futime is available.
161
1623.19 Tue Apr 21 22:05:21 CEST 2009
163 - more perl 5.10 workarounds for aio_read and write.
164 - aio_write no longer modifies the sv (if possible).
165 - aio_read now works correctly with magic values.
166
1673.18 Sun Apr 19 21:17:32 CEST 2009
168 - better diagnostics when some aio_* functions get passed an illegal fh.
169 - try to avoid crashes due to incompatible 5.10 API changes. grmbl.
170
1713.17 Thu Nov 20 08:45:36 CET 2008
172 - (libeio) added aio_sync_file_range (untested).
173 - add aio_busy to @IO::AIO::AIO_REQ.
174
1753.16 Wed Oct 22 18:28:01 CEST 2008
176 - use SvREFCNT_inc instead of SvREFCNT_inc_NN in a non-speed critical
177 part to improve portability to perl 5.8 (reported by szymon).
178
1793.15 Mon Oct 13 00:39:55 CEST 2008
180 - automatic removal of feeders was broken.
181 - (libeio) use a more robust method to detect whether a feeder
182 has added something to the group or not.
183
1843.1 Thu Oct 2 13:34:40 CEST 2008
185 - pre-deref the passed callback object, for increased speed
186 and decreased memory usage.
187 - call on_next_submit callback even for aio_group - impact unknown,
188 but seems more correct.
189 - $req->cb now returns the original callback.
190 - (libeio) pass EIO_GROUP/aio_group requests through the queue without
191 requiring a thread switch.
192 - (libeio) status code of aio_futime and aio_utime was always passed 0.
193 - do some other ยต-optimisations.
194
1953.07 Sat Aug 2 16:06:13 CEST 2008
196 - do not include LIBS in autoconf tests.
197
1983.06 Tue Jul 15 12:41:32 CEST 2008
199 - move preadwritelock definition before it's first reference,
200 to make it compile again on broken platforms (they still exist)
201 or badly cofngiured perls (redhat...), reported by Rob Bloodgood.
202
2033.05 Thu Jun 19 23:23:52 CEST 2008
204 - work around perl overriding readdir etc. with thread-unsafe
205 (sic!) versions.
206
2073.04 Wed Jun 18 01:35:38 CEST 2008
208 - (libeio) fix eio_mknod, which confused it's arguments.
209 - (libeio) do not use readdir_r, as Ulrich Drepper pointed out that this
210 is stupid.
211 - (libeio) fix eio__readahead prototype, patch by Jost Krieger.
212 - (libeio) fix a bug that could potentially cause IO::AIO
213 not to get initialised properly.
214
2153.03 Thu May 29 05:33:30 CEST 2008
216 - (libeio) correctly call pthread_attr_destroy ().
217 - (libeio) work around broken bsd headers once more.
218 - reduce shared library size again by not including wrappers.
219 - max_outstanding could cause poll to enter a busy-waiting loop.
220 - document the new IO::AIO::poll_cb result value.
221
2223.02 Mon May 12 02:32:02 CEST 2008
223 - fix a memory leak on aio_readlink.
224 - bring back working fchmod.
225 - nop and busy now set result to 0.
226 - set errno to ENOMEM when allocation fails.
227
2283.01 Sun May 11 03:07:03 CEST 2008
229 - (libeio) make it compile on systems without readahead or readdir_r.
230 - (libeio) improve configure check for readahead availability.
231 - do not try to link against -lrt.
232 - use a separate configure script for IO::AIO (not the libeio one).
233
2343.0 Sun May 11 00:57:14 CEST 2008
235 - added bin/treescan to the distribution.
236 - switched to using libeio.
237 - LOTS OF INCOMPATIBLE CHANGES:
238 - remove signal functionality, it is not worth the effort.
239 - max_outstanding no longer returns the previous number of requests.
240 - poll_cb no longer returns number of requests.
241
2422.62 Sat Apr 26 13:59:33 CEST 2008
243 - port to solaris perls configured for old posix
244 (analysed by Jost Krieger).
245 - keep a reference to the perl filehandle object in aio_close,
246 so it doesn't get closed prematurely, leading to ugly races.
247
2482.61 Wed Apr 16 18:45:02 CEST 2008
249 - fix treescan output duplication and improve output ordering.
250 also display files given on the commandline.
251 - use a different algorithm for aio_close that is faster
252 and probably has even lower chances of blocking.
253 - do our own stack memory management for threads - linux
254 allocates outrageous amounts of VM (not so bad unless you
255 use mlockall...), which severely limits the number of threads
256 on 32-bit arches: stack size is the larger of PTHREAD_STACK_MIN
257 and 4096 * sizeof (long) (usually this is 16..64k).
258
2592.6 Sun Mar 30 08:28:11 CEST 2008
260 - added aio_sync.
261 - added aio_pathsync.
262 - fix prototypes of (void) functions.
263
2642.51 Sat Oct 6 16:04:54 CEST 2007
265 - perlio isn't generally threadsafe, so aio_close could not work reliably.
266 aio_close now tries a safe hack that might not be that asynchronous
267 (see the manpage for details).
268 - discard callback return values as to not grow the stack endlessly
269 when poll_cb handles many requests without returning.
270 - minor code cleanups.
271
2722.5 Thu Oct 4 14:49:08 CEST 2007
273 - replaced _fd2fh with faster xs code.
274 - aio_close will now try to do "the right thing" and thus might
275 work sensibly for the very first time.
276
2772.41 Mon Sep 24 21:28:21 CEST 2007
278 - after fork, invest some work to make sure that the poll_fileno
279 stays stable (by dup2'ing the new fd over the old one), to make
280 it easier for programs/libs that don't control their forking
281 behaviour and cannot recreate their watchers.
282
2832.4 Sun Aug 5 18:44:22 CEST 2007
284 - add aio_truncate, aio_chmod, aio_chown, aio_utime (linux
12 that you can block on futimes...). 285 successfully demonstrated that you can block on futimes...).
13 - allow undef as fileoffset for aio_read/write and use read/write(2) 286 - allow undef as fileoffset for aio_read/write and use read/write(2)
14 internally (useful for sockets or O_APPEND handles). 287 internally (useful for sockets or O_APPEND handles).
288 - allow undef for length in aio_write.
289 - 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 290 - use NV instead of UV for 32 bit perls and file offsets, as NVs
16 have a larger range then. 291 have a larger range then.
17 - shared code between BDB and IO::AIO. 292 - shared code between BDB and IO::AIO.
293 - aio_busy was completely broken. now fixed.
294 - readahead emulation now returns something.
18 - correctly set errno to ENOSYS on unimplemented functions 295 - correctly set errno to ENOSYS on unimplemented functions
19 (should never happen, though). 296 (should never happen, though).
297 - large changes to make it partially compile and run on win32,
298 but win32 lacks too much functionality, and perl overrides way
299 too many functions with crashing versions.
20 300
212.33 Tue Jan 23 23:55:41 CET 2007 3012.33 Tue Jan 23 23:55:41 CET 2007
22 - fix install path (Andreas J. Koenig). 302 - fix install path (Andreas J. Koenig).
23 303
242.32 Mon Jan 22 16:56:23 CET 2007 3042.32 Mon Jan 22 16:56:23 CET 2007

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