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Comparing IO-AIO/Changes (file contents):
Revision 1.41 by root, Thu Aug 18 16:32:10 2005 UTC vs.
Revision 1.244 by root, Fri Feb 11 00:53:24 2011 UTC

1Revision history for IO::AIO 1Revision history for IO::AIO
2 2
31.5 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? (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
12
13 - use _POSIX_MEMLOCK_RANGE to detetc mlock/munlock.
14 - aio_mknod always used a dev_t value of 0.
15 - new treescan option: --grep.
16 - add more S_IF macros, and major/minor/makedev "macros".
17
183.71 Thu Dec 30 08:18:46 CET 2010
19 - the numerical result value passed to callbacks did not stringify
20 correctly, due to internal reuse and failure to reset the sv flags.
21 - actually test for posix_[mf]advise, as at least uClibc defines
22 _POSIX_ADVISORY_INFO without actually having any of the required
23 funcitonality. ugh.
24
253.7 Mon Nov 1 23:00:34 CET 2010
26 - implement/add madvise, mmap, munmap, aio_mlockall, munlockall,
27 aio_mlock, munlock, msync and mtouch to @EXPORT_OK.
28 - document the sad state of affairs w.r.t. pthread on many bsds.
29 - do not enable mmap on systems without _POSIX_MAPPED_FILES
30 (openbsd 4.8).
31 - do not leak memory in IO::AIO::mmap when the scalar already
32 had string-data.
33 - add O_RDWR, O_APPEND and O_EXCL symbols and semi-document
34 them.
35 - cache the result IV, for a minor speedup in the common case.
36 - croak when an mmapped-scalar changes location, to detect
37 user-errors better.
38 - fix aio_readlink prototype.
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
236 - added aio_sync.
237 - added aio_pathsync.
238 - fix prototypes of (void) functions.
239
2402.51 Sat Oct 6 16:04:54 CEST 2007
241 - perlio isn't generally threadsafe, so aio_close could not work reliably.
242 aio_close now tries a safe hack that might not be that asynchronous
243 (see the manpage for details).
244 - discard callback return values as to not grow the stack endlessly
245 when poll_cb handles many requests without returning.
246 - minor code cleanups.
247
2482.5 Thu Oct 4 14:49:08 CEST 2007
249 - replaced _fd2fh with faster xs code.
250 - aio_close will now try to do "the right thing" and thus might
251 work sensibly for the very first time.
252
2532.41 Mon Sep 24 21:28:21 CEST 2007
254 - after fork, invest some work to make sure that the poll_fileno
255 stays stable (by dup2'ing the new fd over the old one), to make
256 it easier for programs/libs that don't control their forking
257 behaviour and cannot recreate their watchers.
258
2592.4 Sun Aug 5 18:44:22 CEST 2007
260 - add aio_truncate, aio_chmod, aio_chown, aio_utime (linux
261 successfully demonstrated that you can block on futimes...).
262 - allow undef as fileoffset for aio_read/write and use read/write(2)
263 internally (useful for sockets or O_APPEND handles).
264 - allow undef for length in aio_write.
265 - negative dataoffsets work as expected now in aio_read/aio_write.
266 - use NV instead of UV for 32 bit perls and file offsets, as NVs
267 have a larger range then.
268 - shared code between BDB and IO::AIO.
269 - aio_busy was completely broken. now fixed.
270 - readahead emulation now returns something.
271 - correctly set errno to ENOSYS on unimplemented functions
272 (should never happen, though).
273 - large changes to make it partially compile and run on win32,
274 but win32 lacks too much functionality, and perl overrides way
275 too many functions with crashing versions.
276
2772.33 Tue Jan 23 23:55:41 CET 2007
278 - fix install path (Andreas J. Koenig).
279
2802.32 Mon Jan 22 16:56:23 CET 2007
281 - added aio_rmtree.
282 - wow, aio_mkdir was missing.
283 - aio_load did return undef on error, not -1.
284 - use prefixexp not prefix in autoconf.pm
285 (suggested by ... rt.cpan.org unreachable).
286 - avoid installing autoconf.pm.
287
2882.31 Sat Jan 6 03:46:02 CET 2007
289 - added aio_load.
290
2912.3 Sat Dec 23 05:48:07 CET 2006
292 - fix off-by-one bug in aio_read, causing memory corruption
293 or crashes.
294
2952.21 Fri Dec 22 05:03:38 CET 2006
296 - minor doc updates.
297 - minor cleanups.
298 - IO::AIO::poll returns request count.
299 - undocumented and unfinished async-signal-reporting.
300
3012.2 Tue Oct 31 00:31:00 CET 2006
302 - minor doc updates.
303 - added aio_readlink.
304 - properly zero-terminate aio_read buffer.
305 - fix aio_read/write with nonzero dataoffset.
306 - reduced size of aio request structure.
307 - better diagnostics when pathnames etc. are not byte-encoded;
308 do not leak request in that case, either.
309
3102.1 Sun Oct 29 02:01:57 CET 2006
311 - INCOMPATIBLE CHANGE: replace IO::AIO::poll_some by
312 IO::AIO::max_poll_reqs and IO::AIO::max_poll_time.
313 - fix a bug in aio_move where it would fail everytime
314 it would have to copy files manually.
315 - doc updates.
316 - start threads only on (very low) demand.
317 - end superfluous threads automatically after 10s idling.
318 - add IO::AIO::max_idle to control this.
319 - some tuning applied to random places.
320 - add aio_mknod.
321
3222.0 Thu Oct 26 18:27:58 CEST 2006
323 - minor incompatibility: max_outstanding semantics have changed.
324 - major rewrite, consider all functionality EXPERIMENTAL.
325 - aio requests can be cancelled.
326 - callbacks can be (re-)set later.
327 - aio requests can choose between 9 priorities.
328 - add aio_group: aio requests can be grouped
329 into composite requests.
330 - generator interface for groups.
331 - add IO::AIO::poll_some.
332 - major documentation improvements.
333 - very minor bugfixes.
334 - add aio_nop for dummy requests.
335 - add aio_busy mainly for benchmarking and debugging.
336 - use "fast" mutexes on linux.
337 - use dynamic (and larger) buffers instead of
338 putting them onto the stack.
339 - optimise x86 and amd64 a bit.
340 - better error checking when ENOMEM.
341 - hopefully fix mem and dirp leaks on fork.
342 - warn about broken perl malloc.
343 - compiles on cygwin (but pread is broken on cygwin
344 which is not detected by autoconf, so you have to
345 edit autoconf/config.h yourself to enable emulation).
346
3471.8 Sat Jun 24 22:20:44 CEST 2006
348 - add and/or document aio_rename, aio_link, aio_symlink and aio_move.
349
3501.73 Wed Mar 1 22:49:32 CET 2006
351 - codename "jost"
352 - AIX/Solaris(?) aren't being helpful again, hardcode a value
353 for NAME_MAX and drive with your eyes closed (reported by
354 wcooley@nakedape.cc).
355
3561.72 Thu Feb 2 00:40:44 CET 2006
357 - another minor bug in aio_scandir, again, the callback was called
358 twice when the directory can't be stat'ed.
359
3601.71 Mon Dec 26 20:20:03 CET 2005
361 - grr, another minor bug in aio_scandir, this time resulting
362 in a runtime error.
363
3641.7 Mon Dec 26 19:29:48 CET 2005
365 - aio_scandir errornously called callback twice in some cases.
366 - added AnyEvent example.
367
3681.61 Wed Sep 7 19:40:42 CEST 2005
369 - no longer include $Config{libs}, as distros include too much
370 garbage in there that is not installed on typical systems
371 (for example, debian links perl against -lgdbm and many more
372 libraries despite perl not needing it, slowing down startup and
373 wasting memory).
374
3751.6 Tue Aug 30 17:44:44 CEST 2005
376 - added aio_readdir, aio_scandir.
377 - added aio_sendfile, including sendfile emulation when sendfile
378 isn't available. Linux, FreeBSD and HP-UX might work (sendfilev
379 support is unavailable on my solaris 8 machine, but preliminary
380 code is there. What's lacking is configury stuff and testing...).
381
3821.5 Sat Aug 20 02:32:19 CEST 2005
4 - create the aio threads on demand only. 383 - create the aio threads on demand only (good after forking).
5 - somebody nagged about C89 compatibility, so this release should 384 - somebody nagged about C89 compatibility, so this release should
6 be C89 compatible, but no guarentees for future ones. 385 be C89 compatible, but no guarantees for future ones.
386 - abort when the configure script fails.
7 387
81.4 Wed Aug 17 08:07:27 CEST 2005 3881.4 Wed Aug 17 08:07:27 CEST 2005
9 - forget to recreate the pipe after forking, this could cause 389 - forgot to recreate the pipe after forking, this could cause
10 deadlocks. 390 deadlocks.
11 391
121.3 Wed Aug 17 07:25:54 CEST 2005 3921.3 Wed Aug 17 07:25:54 CEST 2005
13 - properly propagate exceptions from callbacks, instead of silently 393 - properly propagate exceptions from callbacks, instead of silently
14 eating them. 394 eating them.

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