ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/IO-AIO/Changes
(Generate patch)

Comparing IO-AIO/Changes (file contents):
Revision 1.8 by root, Mon Jul 11 01:03:17 2005 UTC vs.
Revision 1.276 by root, Tue Sep 27 00:41:51 2011 UTC

1Revision history for IO::AIO 1Revision history for IO::AIO
2 2
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: aio_mincore?
9TODO: getxattr etc.?
10TODO: F_DUPFD_CLOEXEC
11
12 - (libeio) added syncfs syscall wrapper.
13 - (libeio) set thread name on linux (ps -L/Hcx, top, gdb).
14 - (libeio) support multiple indepenent working directories.
15 - applied speling corrections by Nicholas Bamber.
16
174.0 Mon Jul 18 05:01:10 CEST 2011
18 - INCOMPATIBLE CHANGE: fork is no longer supported (indeed, it never was),
19 see FORK BEHAVIOUR in manpage for details.
20 - passes testsuite on win32 now and may actually work
21 (activestate 5.10.1 / MSVC6, YMMV).
22 - (libeio) fix a deadlock where a wakeup signal could be missed when
23 a timeout occured at the same time.
24 - (libeio) added realpath.
25 - (libeio) added fallocate.
26 - (libeio) disabling sendfile on darwin unfortunately broke the emulation.
27 - (libeio) do not acquire any locks when forking.
28 - (libeio) use fewer time() syscalls when waiting for new requests.
29
303.93 Wed Jun 29 23:44:18 CEST 2011
31 - ECB.H WAS MISSING.
32
333.92 Wed Jun 29 14:45:41 CEST 2011
34 - ecb.h was missing.
35
363.91 Wed Jun 29 13:24:42 CEST 2011
37 - (libeio) work around a Linux (and likely FreeBSD and other
38 kernels) bug where sendfile would not transfer all the requested
39 bytes on large transfers, using a heuristic.
40 - buggy sendfile caused aio_move/copy to sometimes fail for big
41 files (fortunately it checks that the whole file has been
42 transferred...)
43 - use libecb for higher performance and higher portability.
44 - (libeio) disable sendfile on darwin, it's too broken.
45 - disable fork tests on !linux, as only linux supports mixing
46 pthread and fork in perl.
47 - document the fact that fork doesn't work anymore when using
48 this module, on anything !GNU/Linux.
49 - increase timeout in t/04_fork.t, as too many CPAN-tester setups
50 run on a 0.1MHz cpu. Or so.
51
523.9 Fri May 27 02:43:47 CEST 2011
53 - (libeio) fix memory corruption in aio_readdirx for the flags
54 combination READDIR_STAT_ORDER | READDIR_DIRS_FIRST.
55 - add lots of newer POSIX and GNU/Linux-specific open
56 flags.
57
583.8 Sun Mar 27 12:25:33 CEST 2011
59 - use nonstandard but maybe-working-on-bsd fork technique.
60 - support a max_idle value of 0.
61 - support setting of idle timeout value (IO::AIO::idle_timeout).
62
633.72 Fri Feb 11 04:25:38 CET 2011
64 - use _POSIX_MEMLOCK_RANGE to detect mlock/munlock.
65 - aio_mknod always used a dev_t value of 0.
66 - new treescan option: --grep.
67 - add more S_IF macros, and major/minor/makedev "macros".
68
693.71 Thu Dec 30 08:18:46 CET 2010
70 - the numerical result value passed to callbacks did not stringify
71 correctly, due to internal reuse and failure to reset the sv flags.
72 - actually test for posix_[mf]advise, as at least uClibc defines
73 _POSIX_ADVISORY_INFO without actually having any of the required
74 funcitonality. ugh.
75
763.7 Mon Nov 1 23:00:34 CET 2010
77 - implement/add madvise, mmap, munmap, aio_mlockall, munlockall,
78 aio_mlock, munlock, msync and mtouch to @EXPORT_OK.
79 - document the sad state of affairs w.r.t. pthread on many bsds.
80 - do not enable mmap on systems without _POSIX_MAPPED_FILES
81 (openbsd 4.8).
82 - do not leak memory in IO::AIO::mmap when the scalar already
83 had string-data.
84 - add O_RDWR, O_APPEND and O_EXCL symbols and semi-document
85 them.
86 - cache the result IV, for a minor speedup in the common case.
87 - croak when an mmapped-scalar changes location, to detect
88 user-errors better.
89 - fix aio_readlink prototype.
90
913.65 Wed Mar 31 02:45:05 CEST 2010
92 - actually use PATH_MAX instead of NAME_MAX for readlink, as to not
93 cut off long pathnames in aio_readlink (based on patch by
94 Rasmus Andersson).
95 - a double fork partially killed the event pipe (great testcase
96 by dormando). affects IO::AIO, BDB and Async::Interrupt.
97 - suck steve's dick and rename our symbols to avoid colliding
98 with nonstandard identifier spam on the broken os x pseudo-os.
99 affects IO::AIO and BDB.
100
1013.6 Mon Jan 11 00:43:39 CET 2010
102 - (libeio) more fixes for the freebsd/apple sendfile - broken by
103 manpage standards, but apparently correct accoridng to actual
104 kernel sources.
105 - add IO::AIO::mmap/munmap support.
106 - add IO::AIO::m(un)lockall support.
107 - clean up manpage.
108
1093.5 Thu Jan 7 21:25:04 CET 2010
110 - (liebio) fix freebsd sendfile (Vanilla Hsu).
111 - (libeio) also fix darwin sendfile that suffered from a similar bug.
112 - add aio_statvfs as interface to statvfs/fstatvfs.
113 - work around buggy symlink() on cygwin in the testsuite.
114 - wtf. freebsd-8.0 actually passes the testsuite! I knew
115 they could implement fork and semaphores one day! cheers!
116
1173.4 Sat Jan 2 15:13:04 CET 2010
118 - (libeio) max_poll_time was not properly converted to ticks.
119 - clarify cancel_subs description.
120 - IO::AIO::sendfile did not actually return the return value
121 from the sendfile call.
122 - implement aio_msync, aio_mtouch.
123 - (libeio) tentatively support darwin in sendfile.
124
1253.31 Thu Nov 12 02:14:29 CET 2009
126 - fix result status documentation of aio_copy, aio_move.
127 - speed up object creation considerably by avoiding
128 hash lookups.
129
1303.3 Wed Aug 5 13:52:58 CEST 2009
131 - use common::sense.
132 - use common schmorp.h header.
133 - allow integers (file descriptors) in addition to file handles.
134 - take advantage of linux' eventfd (but it seems slower on smp?).
135 - use poll not select on posix platforms.
136
1373.261 Wed Jul 1 10:11:51 CEST 2009
138 - more 0S X workarounds (patch by Tokuhiro Matsuno).
139
1403.26 Tue Jun 30 09:33:26 CEST 2009
141 - 0S X of course claims to be posix 2008 but lacks posix_fadvise.
142 try to work around this horribly broken OS in a somewhat hackish
143 way. might help other os's too.
144
1453.25 Sat Jun 27 05:18:26 CEST 2009
146 - added IO::AIO::fadvise and IO::AIO::sendfile.
147 - (libeio) replaced quicksort+insertion sort by a tuned radix
148 sort + insertion sort, resulting in comparable runtime (usually
149 faster) to the old version, but without any ill side effects on
150 degenerated (for quicksort) data.
151 - (libeio) correctly sort dirs by inodes if we have perfect type
152 knowledge and DIRS_FIRST is used.
153 - (libeio) internally the wrong DT_* constants were used, but no
154 known system has differing EIO_DT_*/DT_* values, so not an issue.
155 - removed a (harmless) assert that was left over on the code
156 but should not have been.
157 - use more correct types (change IO length from IV to VAL64,
158 which makes a difference on systems without 64 bit perls).
159
1603.23 Sat Jun 13 16:57:58 CEST 2009
161 - fix off-by-one bug in aio_readdir that was introduced in the
162 rushed 3.22 release.
163
1643.22 Sat Jun 13 15:32:40 CEST 2009
165 - speed up readdirx sort algorithm slightly.
166 - bin/treescan was missing from distro tarball.
167
1683.21 Fri Jun 12 18:45:53 CEST 2009
169 - new options --dirs and --files for treescan.
170 - install bin/treescan by default.
171 - (libeio) aio_readdir can now be cancelled while executing.
172 - fix a printf format string for 64 bit systems (could lead
173 to problems on big endian 64 bit systems).
174 - do not use qsort() but our own algorithm: glibc initialises
175 the whole locale and I/O subsystem inside qsort, causing
176 a stack overflow on 32 bit machines. The new sort uses much less
177 stack and is more than twice as fast in typical situations.
178
1793.2 Sun Jun 7 20:30:05 CEST 2009
180 - (libeio) pwrite emulation was even more flawed than intended and did
181 not restore the file offset.
182 - add aio_readdirx, which can return inode and filetype and sort
183 the names in various ways.
184 - unfortunately, utime, chmod, chown on an open file that has just
185 been written can easily block, which caused aio_copy to block the
186 process. no more!
187 - no longer rely on dst path in aio_copy when futime is available.
188
1893.19 Tue Apr 21 22:05:21 CEST 2009
190 - more perl 5.10 workarounds for aio_read and write.
191 - aio_write no longer modifies the sv (if possible).
192 - aio_read now works correctly with magic values.
193
1943.18 Sun Apr 19 21:17:32 CEST 2009
195 - better diagnostics when some aio_* functions get passed an illegal fh.
196 - try to avoid crashes due to incompatible 5.10 API changes. grmbl.
197
1983.17 Thu Nov 20 08:45:36 CET 2008
199 - (libeio) added aio_sync_file_range (untested).
200 - add aio_busy to @IO::AIO::AIO_REQ.
201
2023.16 Wed Oct 22 18:28:01 CEST 2008
203 - use SvREFCNT_inc instead of SvREFCNT_inc_NN in a non-speed critical
204 part to improve portability to perl 5.8 (reported by szymon).
205
2063.15 Mon Oct 13 00:39:55 CEST 2008
207 - automatic removal of feeders was broken.
208 - (libeio) use a more robust method to detect whether a feeder
209 has added something to the group or not.
210
2113.1 Thu Oct 2 13:34:40 CEST 2008
212 - pre-deref the passed callback object, for increased speed
213 and decreased memory usage.
214 - call on_next_submit callback even for aio_group - impact unknown,
215 but seems more correct.
216 - $req->cb now returns the original callback.
217 - (libeio) pass EIO_GROUP/aio_group requests through the queue without
218 requiring a thread switch.
219 - (libeio) status code of aio_futime and aio_utime was always passed 0.
220 - do some other ยต-optimisations.
221
2223.07 Sat Aug 2 16:06:13 CEST 2008
223 - do not include LIBS in autoconf tests.
224
2253.06 Tue Jul 15 12:41:32 CEST 2008
226 - move preadwritelock definition before it's first reference,
227 to make it compile again on broken platforms (they still exist)
228 or badly cofngiured perls (redhat...), reported by Rob Bloodgood.
229
2303.05 Thu Jun 19 23:23:52 CEST 2008
231 - work around perl overriding readdir etc. with thread-unsafe
232 (sic!) versions.
233
2343.04 Wed Jun 18 01:35:38 CEST 2008
235 - (libeio) fix eio_mknod, which confused it's arguments.
236 - (libeio) do not use readdir_r, as Ulrich Drepper pointed out that this
237 is stupid.
238 - (libeio) fix eio__readahead prototype, patch by Jost Krieger.
239 - (libeio) fix a bug that could potentially cause IO::AIO
240 not to get initialised properly.
241
2423.03 Thu May 29 05:33:30 CEST 2008
243 - (libeio) correctly call pthread_attr_destroy ().
244 - (libeio) work around broken bsd headers once more.
245 - reduce shared library size again by not including wrappers.
246 - max_outstanding could cause poll to enter a busy-waiting loop.
247 - document the new IO::AIO::poll_cb result value.
248
2493.02 Mon May 12 02:32:02 CEST 2008
250 - fix a memory leak on aio_readlink.
251 - bring back working fchmod.
252 - nop and busy now set result to 0.
253 - set errno to ENOMEM when allocation fails.
254
2553.01 Sun May 11 03:07:03 CEST 2008
256 - (libeio) make it compile on systems without readahead or readdir_r.
257 - (libeio) improve configure check for readahead availability.
258 - do not try to link against -lrt.
259 - use a separate configure script for IO::AIO (not the libeio one).
260
2613.0 Sun May 11 00:57:14 CEST 2008
262 - added bin/treescan to the distribution.
263 - switched to using libeio.
264 - LOTS OF INCOMPATIBLE CHANGES:
265 - remove signal functionality, it is not worth the effort.
266 - max_outstanding no longer returns the previous number of requests.
267 - poll_cb no longer returns number of requests.
268
2692.62 Sat Apr 26 13:59:33 CEST 2008
270 - port to solaris perls configured for old posix
271 (analysed by Jost Krieger).
272 - keep a reference to the perl filehandle object in aio_close,
273 so it doesn't get closed prematurely, leading to ugly races.
274
2752.61 Wed Apr 16 18:45:02 CEST 2008
276 - fix treescan output duplication and improve output ordering.
277 also display files given on the commandline.
278 - use a different algorithm for aio_close that is faster
279 and probably has even lower chances of blocking.
280 - do our own stack memory management for threads - linux
281 allocates outrageous amounts of VM (not so bad unless you
282 use mlockall...), which severely limits the number of threads
283 on 32-bit arches: stack size is the larger of PTHREAD_STACK_MIN
284 and 4096 * sizeof (long) (usually this is 16..64k).
285
2862.6 Sun Mar 30 08:28:11 CEST 2008
287 - added aio_sync.
288 - added aio_pathsync.
289 - fix prototypes of (void) functions.
290
2912.51 Sat Oct 6 16:04:54 CEST 2007
292 - perlio isn't generally threadsafe, so aio_close could not work reliably.
293 aio_close now tries a safe hack that might not be that asynchronous
294 (see the manpage for details).
295 - discard callback return values as to not grow the stack endlessly
296 when poll_cb handles many requests without returning.
297 - minor code cleanups.
298
2992.5 Thu Oct 4 14:49:08 CEST 2007
300 - replaced _fd2fh with faster xs code.
301 - aio_close will now try to do "the right thing" and thus might
302 work sensibly for the very first time.
303
3042.41 Mon Sep 24 21:28:21 CEST 2007
305 - after fork, invest some work to make sure that the poll_fileno
306 stays stable (by dup2'ing the new fd over the old one), to make
307 it easier for programs/libs that don't control their forking
308 behaviour and cannot recreate their watchers.
309
3102.4 Sun Aug 5 18:44:22 CEST 2007
311 - add aio_truncate, aio_chmod, aio_chown, aio_utime (linux
312 successfully demonstrated that you can block on futimes...).
313 - allow undef as fileoffset for aio_read/write and use read/write(2)
314 internally (useful for sockets or O_APPEND handles).
315 - allow undef for length in aio_write.
316 - negative dataoffsets work as expected now in aio_read/aio_write.
317 - use NV instead of UV for 32 bit perls and file offsets, as NVs
318 have a larger range then.
319 - shared code between BDB and IO::AIO.
320 - aio_busy was completely broken. now fixed.
321 - readahead emulation now returns something.
322 - correctly set errno to ENOSYS on unimplemented functions
323 (should never happen, though).
324 - large changes to make it partially compile and run on win32,
325 but win32 lacks too much functionality, and perl overrides way
326 too many functions with crashing versions.
327
3282.33 Tue Jan 23 23:55:41 CET 2007
329 - fix install path (Andreas J. Koenig).
330
3312.32 Mon Jan 22 16:56:23 CET 2007
332 - added aio_rmtree.
333 - wow, aio_mkdir was missing.
334 - aio_load did return undef on error, not -1.
335 - use prefixexp not prefix in autoconf.pm
336 (suggested by ... rt.cpan.org unreachable).
337 - avoid installing autoconf.pm.
338
3392.31 Sat Jan 6 03:46:02 CET 2007
340 - added aio_load.
341
3422.3 Sat Dec 23 05:48:07 CET 2006
343 - fix off-by-one bug in aio_read, causing memory corruption
344 or crashes.
345
3462.21 Fri Dec 22 05:03:38 CET 2006
347 - minor doc updates.
348 - minor cleanups.
349 - IO::AIO::poll returns request count.
350 - undocumented and unfinished async-signal-reporting.
351
3522.2 Tue Oct 31 00:31:00 CET 2006
353 - minor doc updates.
354 - added aio_readlink.
355 - properly zero-terminate aio_read buffer.
356 - fix aio_read/write with nonzero dataoffset.
357 - reduced size of aio request structure.
358 - better diagnostics when pathnames etc. are not byte-encoded;
359 do not leak request in that case, either.
360
3612.1 Sun Oct 29 02:01:57 CET 2006
362 - INCOMPATIBLE CHANGE: replace IO::AIO::poll_some by
363 IO::AIO::max_poll_reqs and IO::AIO::max_poll_time.
364 - fix a bug in aio_move where it would fail everytime
365 it would have to copy files manually.
366 - doc updates.
367 - start threads only on (very low) demand.
368 - end superfluous threads automatically after 10s idling.
369 - add IO::AIO::max_idle to control this.
370 - some tuning applied to random places.
371 - add aio_mknod.
372
3732.0 Thu Oct 26 18:27:58 CEST 2006
374 - minor incompatibility: max_outstanding semantics have changed.
375 - major rewrite, consider all functionality EXPERIMENTAL.
376 - aio requests can be cancelled.
377 - callbacks can be (re-)set later.
378 - aio requests can choose between 9 priorities.
379 - add aio_group: aio requests can be grouped
380 into composite requests.
381 - generator interface for groups.
382 - add IO::AIO::poll_some.
383 - major documentation improvements.
384 - very minor bugfixes.
385 - add aio_nop for dummy requests.
386 - add aio_busy mainly for benchmarking and debugging.
387 - use "fast" mutexes on linux.
388 - use dynamic (and larger) buffers instead of
389 putting them onto the stack.
390 - optimise x86 and amd64 a bit.
391 - better error checking when ENOMEM.
392 - hopefully fix mem and dirp leaks on fork.
393 - warn about broken perl malloc.
394 - compiles on cygwin (but pread is broken on cygwin
395 which is not detected by autoconf, so you have to
396 edit autoconf/config.h yourself to enable emulation).
397
3981.8 Sat Jun 24 22:20:44 CEST 2006
399 - add and/or document aio_rename, aio_link, aio_symlink and aio_move.
400
4011.73 Wed Mar 1 22:49:32 CET 2006
402 - codename "jost"
403 - AIX/Solaris(?) aren't being helpful again, hardcode a value
404 for NAME_MAX and drive with your eyes closed (reported by
405 wcooley@nakedape.cc).
406
4071.72 Thu Feb 2 00:40:44 CET 2006
408 - another minor bug in aio_scandir, again, the callback was called
409 twice when the directory can't be stat'ed.
410
4111.71 Mon Dec 26 20:20:03 CET 2005
412 - grr, another minor bug in aio_scandir, this time resulting
413 in a runtime error.
414
4151.7 Mon Dec 26 19:29:48 CET 2005
416 - aio_scandir errornously called callback twice in some cases.
417 - added AnyEvent example.
418
4191.61 Wed Sep 7 19:40:42 CEST 2005
420 - no longer include $Config{libs}, as distros include too much
421 garbage in there that is not installed on typical systems
422 (for example, debian links perl against -lgdbm and many more
423 libraries despite perl not needing it, slowing down startup and
424 wasting memory).
425
4261.6 Tue Aug 30 17:44:44 CEST 2005
427 - added aio_readdir, aio_scandir.
428 - added aio_sendfile, including sendfile emulation when sendfile
429 isn't available. Linux, FreeBSD and HP-UX might work (sendfilev
430 support is unavailable on my solaris 8 machine, but preliminary
431 code is there. What's lacking is configury stuff and testing...).
432
4331.5 Sat Aug 20 02:32:19 CEST 2005
434 - create the aio threads on demand only (good after forking).
435 - somebody nagged about C89 compatibility, so this release should
436 be C89 compatible, but no guarantees for future ones.
437 - abort when the configure script fails.
438
4391.4 Wed Aug 17 08:07:27 CEST 2005
440 - forgot to recreate the pipe after forking, this could cause
441 deadlocks.
442
4431.3 Wed Aug 17 07:25:54 CEST 2005
444 - properly propagate exceptions from callbacks, instead of silently
445 eating them.
446 - use a different fork algorithm that avoids recursive callback
447 invocations and reduces fork latency in busy processes.
448 - fix a bug where the buffer scalar in aio_read got assigned the wrong
449 length after reading.
450 - fix a bug where the child would process some outstanding requests
451 from the parent.
452 - make a copy of the callback scalar, to avoid some very uncommon
453 (but valid) usages where the callback scalar changes.
454 - the callback was never freed in aio_read/aio_write.
455 - aio_read/aio_write will now set the readonly flag on the data
456 scalar for better error reporting.
457
4581.2 Wed Aug 17 01:22:58 CEST 2005
459 - verified on cygwin, linux/amd64+ia32+alpha, solaris.
460 - use SvPVbyte for filenames now. You *need* to encode your strings to
461 the external filename encoding first.
462 - fix the bug where filehandles could leak (again).
463 - clarify freebsd situation: make it work and tell me how, or go away
464 with your underdocumented, broken and outdated OS.
465 - fork'ing should now be officially supported (where linux and
466 posix contradict each other, I followed posix).
467 - only call read() once per poll, not twice (speedup).
468 - new functions: aio_rmdir, aio_symlink.
469 - force callback arguments to be undef or a reference, for better
470 error catching.
471
4721.1 Sun Aug 7 05:27:23 CEST 2005
473 - added configure script to detect availability of some calls.
474 (imperfect, as we cannot detect things like -lrt due to missing
475 feedback yet).
476 - emulate fdatasync via fsync, pread/pwrite via unsafe read/write
477 and readahead via manual reading on platforms lacking those.
478 - ported t/03_errors.t+framework by Brad Fitzpatrick
479 from Linux::AIO.
480 - removed XOPEN_SOURCE because stupid solaris 9 doesn't
481 compile with it enabled. Probably breaks others. Oh well.
482 - try to be more careful with errno on non-threaded perls.
483 - cygwins perl insisted on a matching open mode when morphing
484 the fd to an fh.
485 - convert sv's to "byte" encoding in aio_read/aio_write. Might
486 do that for pathnames, too, in the future, so make sure you
487 properly encode your pathnames.
488
4891.0 Fri Jul 22 10:43:30 CEST 2005
490 - aio_open did not reliably deliver (open) filehandles.
491 - all aio_*-functions keep a reference to the filehandle so
492 it doesn't go away while the aio requests is working on it.
493 - disable warnings in AIO.pm.
494
4950.9 Wed Jul 20 23:55:04 CEST 2005
496 - allow recursive calls to poll_cb, use less locking calls, too.
497 - fix the Gtk2-example in the SYNOPSIS.
498 - use pread/pwrite not pread64/pwrite64. this was simply a leftover
499 from Linux::AIO.
500 (found by compiling on cygwin. Unfortunately, cygwin declares but
501 does not implement pread/pwrite).
502 - only include <sys/syscall.h> on linux.
503
5040.5 Tue Jul 12 13:03:09 CEST 2005
505 - removed #include <endian.h>, it's not portable, and we don't
506 need it anyway.
507 - link against -lrt, as it might contain goodies such as fdatasync,
508 and often aio_read, which we do not use yet, but it shouldn't hurt.
509
5100.4 Mon Jul 11 05:28:25 CEST 2005
3 - added IO::AIO::flush. 511 - added IO::AIO::flush, IO::AIO::poll.
512 - make callback argument optional for all calls.
4 513
50.3 Mon Jul 11 01:42:37 CEST 2005 5140.3 Mon Jul 11 01:42:37 CEST 2005
6 - restructured manpage. 515 - restructured manpage.
7 - added SYNOPSIS with examples for Event, Glib, Tk. 516 - added SYNOPSIS with examples for Event, Glib, Tk.
8 - remove explicit context support so I don't have to maintain 517 - remove explicit context support so I don't have to maintain

Diff Legend

Removed lines
+ Added lines
< Changed lines
> Changed lines