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Revision 1.5 by root, Sun Jul 10 21:04:24 2005 UTC vs.
Revision 1.363 by root, Sun Aug 12 06:10:31 2018 UTC

1Revision history for IO::AIO 1Revision history for IO::AIO
2 2
3TODO: scandir - some dirs mostly contain subdirs - invert logic?
4TODO: aio_cptree/mvtree
5TODO: vmsplice? (http://kerneltrap.org/node/6505 http://lwn.net/Articles/178199/)
6TODO: getxattr, setxattr, listxattr, removexattr etc.?
7TODO: emulation for splice?
8TODO: syncfs/sync windows:
9TODO: posix_fallocate when flags=0
10http://stackoverflow.com/questions/65170/how-to-get-name-associated-with-open-handle/5286888#5286888
11http://blogs.msdn.com/b/adioltean/archive/2005/04/16/408947.aspx
12http://msdn.microsoft.com/en-us/library/aa366789%28v=vs.85%29.aspx
13http://msdn.microsoft.com/en-us/library/windows/desktop/aa366789%28v=vs.85%29.aspx
14http://msdn.microsoft.com/en-us/library/windows/desktop/aa364425%28v=vs.85%29.aspx
15http://msdn.microsoft.com/en-us/library/windows/desktop/aa364963%28v=vs.85%29.aspx
16http://msdn.microsoft.com/en-us/library/windows/desktop/aa364996%28v=vs.85%29.aspx
17http://msdn.microsoft.com/en-us/library/windows/desktop/aa364994%28v=vs.85%29.aspx
18TODO: extra socket/tcp constants &c?
19TODO: http://lwn.net/Articles/593918/ SHMEM_SET_SEALS, SHMEM_GET_SEALS, SEAL_SHRINK, SEAL_GROW, SEAL_WRITE, int memfd_create(const char *name, u64 size, u64 flags);, MFD_CLOEXEC, int fd = open("/tmp", O_RDWR | O_TMPFILE | O_EXCL, S_IRWXU);
20TODO: name_to_handle_At + open_by_handle_at = clone fds
21TODO: lchown
22TODO: mount/umount2/MS_* flags
23
24TODO: rewrite rmtree et al. to support working directories (also speed them up)
25TODO: maybe IO::AIO leaks fds when requests are cancelled? maybe initialise result to -1?
26TODO: aio_wd should use O_PATH on linux, due to lacking O_SEARCH (http://comments.gmane.org/gmane.linux.file-systems/33611)
27 http://www.openwall.com/lists/musl/2013/02/23/4
28TODO: maybe copy some hacks from PerlIOStdio_invalidate_fileno for faster close on certain platforms
29TODO: copy_file_range, copy_file_range
30TODO: FIDEDUPERANGE, file_ioctl.c
31TODO: mincore
32TODO: SOCK_CLOEXEc etc.
33TODO: unlinkat flags, linkat flags, statat, renameat2 flags
34TODO: https://kernelnewbies.org/Linux_4.11
35TODO: define useful rules for [[$wd, $path], $path] &c and implement them
36TODO: https://github.com/coreutils/coreutils/blob/master/src/stat.c maybe IO::AIO::FSID
37TODO: mlock2, MLOCK_ONFAULT
38TODO: dup3, pipe2, accept4
39
404.52 Sun Aug 12 08:09:45 CEST 2018
41 - config.h.in was missing in distribution.
42
434.51 Sun Aug 12 07:24:14 CEST 2018
44 - complete rework of the autoconf framework: IO::AIO now uses its own
45 config.h, separate from libeio, and tries to test the actual perl
46 environment, not the standard system environment.
47 - provide nanosecond-accracy stat time accessors for both perl and IO::AIO
48 stat functions.
49 - removed non-portable C++ syntax from eio.c.
50 - try to fix readdir tests on cygwin spuriously failing.
51
524.5 Wed Aug 1 00:23:55 CEST 2018
53 - aio_mtouch touch all pages as requested, not just the first page in most cases.
54 - new function: IO::AIO::mremap, linux-specific mremap, with constants MREMAP_MAYMOVE
55 and MREMAP_FIXED.
56 - add O_ACCMODE.
57 - add (undocumented) MSG_CMSG_CLOEXEC and SOCK_CLOEXEC constants.
58
594.4 Tue Feb 20 07:54:12 CET 2018
60 - new aio_slurp request.
61 - add (experimental) IO::AIO::eventfd and timerfd* function.
62 - add (experimental) IO::AIO::get_fdlimit and IO::AIO::min_fdlimit.
63 - point out that aio_copy overwrites existing files.
64 - removed filesystem magic number table from aio_statvfs docs as
65 statvfs doesn't actually return this info at all (statfs does).
66 - add a bunch of (mostly linux-specific) constants for use in ioctls
67 (see aio_ioctl docs).
68 - treescan now has a proper manpage and useful --help output.
69 - new option --sync in treescan, to sync everything in a subtree.
70 - changed default for aio_msync flags to MSYNC_SYNC.
71 - document offset/length behaviour of mprotect/madvise.
72 - support linux's renameat2 (via aio_rename2).
73 - add aio_rename2, an aio_rename with flags.
74 - add F_DUPPFD_CLOEXEC, F_OFD_[SG]ETLKW? constants.
75 - add FALLOC_FL_INSERT_RANGE, FALLOC_FL_UNSHARE_RANGE.
76 - (libeio) use posix_close if available.
77 - (libeio) internal close() calls no longer disturb errno.
78 - add IO:AIO::FALLOC_FL_UNSHARE.
79 - update schmorp.h for removal of USE_SOCKETS_AS_HANDLES
80 and better eventfd detection.
81
824.34 Sun May 1 19:18:24 CEST 2016
83 - def0.h was not properly generated during previous release, causing
84 compile errors on various platforms.
85 - major/minor were accidentally switched (reported by Alexander Lishenyuk).
86 - removed duplicate definition of MAP_HUGETLB, that was found due to
87 a bug in Perl::Tidy (testcase by alaska332@gmail.com).
88 - added (untested!) aio_fcntl, aio_ioctl requests.
89 - (libeio) names set via prctl are truncated to 15 chars + nul, not 16,
90 as manpages-dev originally claimed.
91
924.33 Mon Jan 18 12:50:10 CET 2016
93 - add IO::AIO::pipe2 function.
94 - added support for FALLOC_FL_COLLAPSE_RANGE and FALLOC_FL_ZERO_RANGE
95 constants.
96 - added support for O_TMPFILE and O_PATH constants.
97 - added support for MAP_FIXED, MAP_GROWSDOWN,MAP_32BIT, MAP_HUGETLB, MAP_STACK
98 consdtants, whether they can be sensibly used or not.
99 - use NO_INIT where applicable.
100 - update libecb.
101 - added stability canary support.
102 - updated linux super magic table to 4.3.3.
103
1044.32 Wed Feb 11 20:32:11 CET 2015
105 - replace off_t by STRLEN where appropriate, should not result in
106 user-visible changes.
107 - update ecb.h for C11 compatibility.
108
1094.31 Tue Jun 3 03:29:27 CEST 2014
110 - work around more 5.20 bugs. backwards compatibility my ass.
111
1124.3 Fri Apr 11 06:22:38 CEST 2014
113 - perl5porters broke Async::Interrupt, BDB, EV, IO::AIO, OpenCL
114 without warning by switching the meaning of USE_SOCKETS_AS_HANDLES
115 in 5.18. What's so attractive about giving a shit about backwards
116 compatibility - I will never understand.
117
1184.2 Sat Jan 25 01:13:14 CET 2014
119 - aio_group could corrupt memory because it didn't restore
120 the stack after req_submit.
121 - be more careful on (e.g. permission) errors in bin/treescan.
122 - work around changes in ExtUtils::MakeMaker.
123 - (libeio) implement aio_realpath for win32.
124 - (xthread) work around compile time bugs in ptw32.
125 - added IO::AIO::pipesize.
126 - (libecb) insignificant update.
127
1284.19 Sun Jan 6 12:47:26 CET 2013
129 - avoid endless loop in fiemap with some XFS files.
130 - in aio_rename and aio_rmdir, specialcase the case of [$wd, "."]
131 and call rename/rmdir instead of renameat/unlinkat.
132
1334.18 Thu Oct 11 07:01:26 CEST 2012
134 - fix unintended xthread_create by intentionalising it :)
135
1364.17 Thu Oct 11 05:19:47 CEST 2012
137 - rename aio_fallocate to aio_allocate, to match documentation.
138 - add list of linux fsid values to aio_statvfs docs.
139 - work around a bug in btrfs' FIEMAP ioctl implementation.
140 - work around AIX bug: statvfs.f_fsid is a struct, not unsigned long
141 as per unix spec.
142
1434.16 Tue Aug 14 05:39:03 CEST 2012
144 - aio_statvfs was wromgly marked for wd emulation, causing
145 it to malfunction for paths.
146 - fix a crash in aio_fiemap, when used on ranges without any
147 extents.
148 - work around linux kernel bug (at least in 3.2): kernel might
149 trash fiemap input arguments.
150 - work around linux kernel bug (at least in 3.2): kernel does not
151 set FIEMAP_EXTENT_LAST on last segment.
152 - work around linux kernel bug (at least in 3.2): kernel silently
153 truncates segment count if a file.
154 - make fh argument of IO::AIO::mmap optional, also add mmap/munmap
155 to quick overview.
156 - splice can corrupt data.
157 - (libeio) remove pread/pwrite emulation.
158 - do not grow mmaped scalars in aio_read.
159 - add FALLOC_FL_PUNCH_HOLE and document fallocate.
160 - provide pread/pwrite for win32, making it link again on native win32.
161
1624.15 Tue Apr 10 06:59:00 CEST 2012
163 - always include linux/types.h for fiemap, for compatibility to
164 ancient systems (Paul Howarth).
165 - experimental support for IO::AIO::splice and ::tee (no aio_...).
166 - provide SEEK_HOLE and SEEK_DATA, if available.
167 - work around (again!) an immensely stupid bug in RHEL, defining
168 autoconf macros in linux system headers (analysed by Paul Howarth).
169
1704.14 Sat Apr 7 02:45:18 CEST 2012
171 - fix stat structure usage on windows, which caused bogus stat results.
172 - (libeio) make readahead emulation behave more like actual readahead by never failing.
173 - new request aio_seek.
174 - new request aio_fiemap.
175 - autogenerate the #ifdef/#define 0 blocks for symbols we export.
176
1774.12 Fri Dec 30 08:51:25 CET 2011
178 - realpath would return a random value if the name was too long,
179 instead of -1.
180 - port to c89.
181
1824.11 Mon Oct 10 00:24:11 CEST 2011
183 - libeio didn't compile on !linux (Paul Howarth).
184
1854.1 Sun Oct 9 10:24:11 CEST 2011
186 - IO::AIO did access uninitialised memory on unsuccessful stats.
187 - (libeio) added syncfs syscall wrapper.
188 - (libeio) set thread name on linux (ps -L/Hcx, top, gdb).
189 - (libeio) support multiple indepenent working directories.
190 - applied speling corrections by Nicholas Bamber.
191 - tune treescan #threads and #outstanding requests a bit.
192 - reduce the number of file descriptors in use at any one time
193 in treescan, to avoid running out of them (and using too much ram).
194 - take advantage of working directoriy abstractions
195 in aio_scandir and treescan.
196 - reduce compiled size by ~10% by not inlining some key functionality.
197 - added --progress switch to treescan.
198
1994.0 Mon Jul 18 05:01:10 CEST 2011
200 - INCOMPATIBLE CHANGE: fork is no longer supported (indeed, it never was),
201 see FORK BEHAVIOUR in manpage for details.
202 - passes testsuite on win32 now and may actually work
203 (activestate 5.10.1 / MSVC6, YMMV).
204 - (libeio) fix a deadlock where a wakeup signal could be missed when
205 a timeout occured at the same time.
206 - (libeio) added realpath.
207 - (libeio) added fallocate.
208 - (libeio) disabling sendfile on darwin unfortunately broke the emulation.
209 - (libeio) do not acquire any locks when forking.
210 - (libeio) use fewer time() syscalls when waiting for new requests.
211
2123.93 Wed Jun 29 23:44:18 CEST 2011
213 - ECB.H WAS MISSING.
214
2153.92 Wed Jun 29 14:45:41 CEST 2011
216 - ecb.h was missing.
217
2183.91 Wed Jun 29 13:24:42 CEST 2011
219 - (libeio) work around a Linux (and likely FreeBSD and other
220 kernels) bug where sendfile would not transfer all the requested
221 bytes on large transfers, using a heuristic.
222 - buggy sendfile caused aio_move/copy to sometimes fail for big
223 files (fortunately it checks that the whole file has been
224 transferred...)
225 - use libecb for higher performance and higher portability.
226 - (libeio) disable sendfile on darwin, it's too broken.
227 - disable fork tests on !linux, as only linux supports mixing
228 pthread and fork in perl.
229 - document the fact that fork doesn't work anymore when using
230 this module, on anything !GNU/Linux.
231 - increase timeout in t/04_fork.t, as too many CPAN-tester setups
232 run on a 0.1MHz cpu. Or so.
233
2343.9 Fri May 27 02:43:47 CEST 2011
235 - (libeio) fix memory corruption in aio_readdirx for the flags
236 combination READDIR_STAT_ORDER | READDIR_DIRS_FIRST.
237 - add lots of newer POSIX and GNU/Linux-specific open
238 flags.
239
2403.8 Sun Mar 27 12:25:33 CEST 2011
241 - use nonstandard but maybe-working-on-bsd fork technique.
242 - support a max_idle value of 0.
243 - support setting of idle timeout value (IO::AIO::idle_timeout).
244
2453.72 Fri Feb 11 04:25:38 CET 2011
246 - use _POSIX_MEMLOCK_RANGE to detect mlock/munlock.
247 - aio_mknod always used a dev_t value of 0.
248 - new treescan option: --grep.
249 - add more S_IF macros, and major/minor/makedev "macros".
250
2513.71 Thu Dec 30 08:18:46 CET 2010
252 - the numerical result value passed to callbacks did not stringify
253 correctly, due to internal reuse and failure to reset the sv flags.
254 - actually test for posix_[mf]advise, as at least uClibc defines
255 _POSIX_ADVISORY_INFO without actually having any of the required
256 funcitonality. ugh.
257
2583.7 Mon Nov 1 23:00:34 CET 2010
259 - implement/add madvise, mmap, munmap, aio_mlockall, munlockall,
260 aio_mlock, munlock, msync and mtouch to @EXPORT_OK.
261 - document the sad state of affairs w.r.t. pthread on many bsds.
262 - do not enable mmap on systems without _POSIX_MAPPED_FILES
263 (openbsd 4.8).
264 - do not leak memory in IO::AIO::mmap when the scalar already
265 had string-data.
266 - add O_RDWR, O_APPEND and O_EXCL symbols and semi-document
267 them.
268 - cache the result IV, for a minor speedup in the common case.
269 - croak when an mmapped-scalar changes location, to detect
270 user-errors better.
271 - fix aio_readlink prototype.
272
2733.65 Wed Mar 31 02:45:05 CEST 2010
274 - actually use PATH_MAX instead of NAME_MAX for readlink, as to not
275 cut off long pathnames in aio_readlink (based on patch by
276 Rasmus Andersson).
277 - a double fork partially killed the event pipe (great testcase
278 by dormando). affects IO::AIO, BDB and Async::Interrupt.
279 - suck steve's dick and rename our symbols to avoid colliding
280 with nonstandard identifier spam on the broken os x pseudo-os.
281 affects IO::AIO and BDB.
282
2833.6 Mon Jan 11 00:43:39 CET 2010
284 - (libeio) more fixes for the freebsd/apple sendfile - broken by
285 manpage standards, but apparently correct accoridng to actual
286 kernel sources.
287 - add IO::AIO::mmap/munmap support.
288 - add IO::AIO::m(un)lockall support.
289 - clean up manpage.
290
2913.5 Thu Jan 7 21:25:04 CET 2010
292 - (liebio) fix freebsd sendfile (Vanilla Hsu).
293 - (libeio) also fix darwin sendfile that suffered from a similar bug.
294 - add aio_statvfs as interface to statvfs/fstatvfs.
295 - work around buggy symlink() on cygwin in the testsuite.
296 - wtf. freebsd-8.0 actually passes the testsuite! I knew
297 they could implement fork and semaphores one day! cheers!
298
2993.4 Sat Jan 2 15:13:04 CET 2010
300 - (libeio) max_poll_time was not properly converted to ticks.
301 - clarify cancel_subs description.
302 - IO::AIO::sendfile did not actually return the return value
303 from the sendfile call.
304 - implement aio_msync, aio_mtouch.
305 - (libeio) tentatively support darwin in sendfile.
306
3073.31 Thu Nov 12 02:14:29 CET 2009
308 - fix result status documentation of aio_copy, aio_move.
309 - speed up object creation considerably by avoiding
310 hash lookups.
311
3123.3 Wed Aug 5 13:52:58 CEST 2009
313 - use common::sense.
314 - use common schmorp.h header.
315 - allow integers (file descriptors) in addition to file handles.
316 - take advantage of linux' eventfd (but it seems slower on smp?).
317 - use poll not select on posix platforms.
318
3193.261 Wed Jul 1 10:11:51 CEST 2009
320 - more 0S X workarounds (patch by Tokuhiro Matsuno).
321
3223.26 Tue Jun 30 09:33:26 CEST 2009
323 - 0S X of course claims to be posix 2008 but lacks posix_fadvise.
324 try to work around this horribly broken OS in a somewhat hackish
325 way. might help other os's too.
326
3273.25 Sat Jun 27 05:18:26 CEST 2009
328 - added IO::AIO::fadvise and IO::AIO::sendfile.
329 - (libeio) replaced quicksort+insertion sort by a tuned radix
330 sort + insertion sort, resulting in comparable runtime (usually
331 faster) to the old version, but without any ill side effects on
332 degenerated (for quicksort) data.
333 - (libeio) correctly sort dirs by inodes if we have perfect type
334 knowledge and DIRS_FIRST is used.
335 - (libeio) internally the wrong DT_* constants were used, but no
336 known system has differing EIO_DT_*/DT_* values, so not an issue.
337 - removed a (harmless) assert that was left over on the code
338 but should not have been.
339 - use more correct types (change IO length from IV to VAL64,
340 which makes a difference on systems without 64 bit perls).
341
3423.23 Sat Jun 13 16:57:58 CEST 2009
343 - fix off-by-one bug in aio_readdir that was introduced in the
344 rushed 3.22 release.
345
3463.22 Sat Jun 13 15:32:40 CEST 2009
347 - speed up readdirx sort algorithm slightly.
348 - bin/treescan was missing from distro tarball.
349
3503.21 Fri Jun 12 18:45:53 CEST 2009
351 - new options --dirs and --files for treescan.
352 - install bin/treescan by default.
353 - (libeio) aio_readdir can now be cancelled while executing.
354 - fix a printf format string for 64 bit systems (could lead
355 to problems on big endian 64 bit systems).
356 - do not use qsort() but our own algorithm: glibc initialises
357 the whole locale and I/O subsystem inside qsort, causing
358 a stack overflow on 32 bit machines. The new sort uses much less
359 stack and is more than twice as fast in typical situations.
360
3613.2 Sun Jun 7 20:30:05 CEST 2009
362 - (libeio) pwrite emulation was even more flawed than intended and did
363 not restore the file offset.
364 - add aio_readdirx, which can return inode and filetype and sort
365 the names in various ways.
366 - unfortunately, utime, chmod, chown on an open file that has just
367 been written can easily block, which caused aio_copy to block the
368 process. no more!
369 - no longer rely on dst path in aio_copy when futime is available.
370
3713.19 Tue Apr 21 22:05:21 CEST 2009
372 - more perl 5.10 workarounds for aio_read and write.
373 - aio_write no longer modifies the sv (if possible).
374 - aio_read now works correctly with magic values.
375
3763.18 Sun Apr 19 21:17:32 CEST 2009
377 - better diagnostics when some aio_* functions get passed an illegal fh.
378 - try to avoid crashes due to incompatible 5.10 API changes. grmbl.
379
3803.17 Thu Nov 20 08:45:36 CET 2008
381 - (libeio) added aio_sync_file_range (untested).
382 - add aio_busy to @IO::AIO::AIO_REQ.
383
3843.16 Wed Oct 22 18:28:01 CEST 2008
385 - use SvREFCNT_inc instead of SvREFCNT_inc_NN in a non-speed critical
386 part to improve portability to perl 5.8 (reported by szymon).
387
3883.15 Mon Oct 13 00:39:55 CEST 2008
389 - automatic removal of feeders was broken.
390 - (libeio) use a more robust method to detect whether a feeder
391 has added something to the group or not.
392
3933.1 Thu Oct 2 13:34:40 CEST 2008
394 - pre-deref the passed callback object, for increased speed
395 and decreased memory usage.
396 - call on_next_submit callback even for aio_group - impact unknown,
397 but seems more correct.
398 - $req->cb now returns the original callback.
399 - (libeio) pass EIO_GROUP/aio_group requests through the queue without
400 requiring a thread switch.
401 - (libeio) status code of aio_futime and aio_utime was always passed 0.
402 - do some other ยต-optimisations.
403
4043.07 Sat Aug 2 16:06:13 CEST 2008
405 - do not include LIBS in autoconf tests.
406
4073.06 Tue Jul 15 12:41:32 CEST 2008
408 - move preadwritelock definition before it's first reference,
409 to make it compile again on broken platforms (they still exist)
410 or badly cofngiured perls (redhat...), reported by Rob Bloodgood.
411
4123.05 Thu Jun 19 23:23:52 CEST 2008
413 - work around perl overriding readdir etc. with thread-unsafe
414 (sic!) versions.
415
4163.04 Wed Jun 18 01:35:38 CEST 2008
417 - (libeio) fix eio_mknod, which confused it's arguments.
418 - (libeio) do not use readdir_r, as Ulrich Drepper pointed out that this
419 is stupid.
420 - (libeio) fix eio__readahead prototype, patch by Jost Krieger.
421 - (libeio) fix a bug that could potentially cause IO::AIO
422 not to get initialised properly.
423
4243.03 Thu May 29 05:33:30 CEST 2008
425 - (libeio) correctly call pthread_attr_destroy ().
426 - (libeio) work around broken bsd headers once more.
427 - reduce shared library size again by not including wrappers.
428 - max_outstanding could cause poll to enter a busy-waiting loop.
429 - document the new IO::AIO::poll_cb result value.
430
4313.02 Mon May 12 02:32:02 CEST 2008
432 - fix a memory leak on aio_readlink.
433 - bring back working fchmod.
434 - nop and busy now set result to 0.
435 - set errno to ENOMEM when allocation fails.
436
4373.01 Sun May 11 03:07:03 CEST 2008
438 - (libeio) make it compile on systems without readahead or readdir_r.
439 - (libeio) improve configure check for readahead availability.
440 - do not try to link against -lrt.
441 - use a separate configure script for IO::AIO (not the libeio one).
442
4433.0 Sun May 11 00:57:14 CEST 2008
444 - added bin/treescan to the distribution.
445 - switched to using libeio.
446 - LOTS OF INCOMPATIBLE CHANGES:
447 - remove signal functionality, it is not worth the effort.
448 - max_outstanding no longer returns the previous number of requests.
449 - poll_cb no longer returns number of requests.
450
4512.62 Sat Apr 26 13:59:33 CEST 2008
452 - port to solaris perls configured for old posix
453 (analysed by Jost Krieger).
454 - keep a reference to the perl filehandle object in aio_close,
455 so it doesn't get closed prematurely, leading to ugly races.
456
4572.61 Wed Apr 16 18:45:02 CEST 2008
458 - fix treescan output duplication and improve output ordering.
459 also display files given on the commandline.
460 - use a different algorithm for aio_close that is faster
461 and probably has even lower chances of blocking.
462 - do our own stack memory management for threads - linux
463 allocates outrageous amounts of VM (not so bad unless you
464 use mlockall...), which severely limits the number of threads
465 on 32-bit arches: stack size is the larger of PTHREAD_STACK_MIN
466 and 4096 * sizeof (long) (usually this is 16..64k).
467
4682.6 Sun Mar 30 08:28:11 CEST 2008
469 - added aio_sync.
470 - added aio_pathsync.
471 - fix prototypes of (void) functions.
472
4732.51 Sat Oct 6 16:04:54 CEST 2007
474 - perlio isn't generally threadsafe, so aio_close could not work reliably.
475 aio_close now tries a safe hack that might not be that asynchronous
476 (see the manpage for details).
477 - discard callback return values as to not grow the stack endlessly
478 when poll_cb handles many requests without returning.
479 - minor code cleanups.
480
4812.5 Thu Oct 4 14:49:08 CEST 2007
482 - replaced _fd2fh with faster xs code.
483 - aio_close will now try to do "the right thing" and thus might
484 work sensibly for the very first time.
485
4862.41 Mon Sep 24 21:28:21 CEST 2007
487 - after fork, invest some work to make sure that the poll_fileno
488 stays stable (by dup2'ing the new fd over the old one), to make
489 it easier for programs/libs that don't control their forking
490 behaviour and cannot recreate their watchers.
491
4922.4 Sun Aug 5 18:44:22 CEST 2007
493 - add aio_truncate, aio_chmod, aio_chown, aio_utime (linux
494 successfully demonstrated that you can block on futimes...).
495 - allow undef as fileoffset for aio_read/write and use read/write(2)
496 internally (useful for sockets or O_APPEND handles).
497 - allow undef for length in aio_write.
498 - negative dataoffsets work as expected now in aio_read/aio_write.
499 - use NV instead of UV for 32 bit perls and file offsets, as NVs
500 have a larger range then.
501 - shared code between BDB and IO::AIO.
502 - aio_busy was completely broken. now fixed.
503 - readahead emulation now returns something.
504 - correctly set errno to ENOSYS on unimplemented functions
505 (should never happen, though).
506 - large changes to make it partially compile and run on win32,
507 but win32 lacks too much functionality, and perl overrides way
508 too many functions with crashing versions.
509
5102.33 Tue Jan 23 23:55:41 CET 2007
511 - fix install path (Andreas J. Koenig).
512
5132.32 Mon Jan 22 16:56:23 CET 2007
514 - added aio_rmtree.
515 - wow, aio_mkdir was missing.
516 - aio_load did return undef on error, not -1.
517 - use prefixexp not prefix in autoconf.pm
518 (suggested by ... rt.cpan.org unreachable).
519 - avoid installing autoconf.pm.
520
5212.31 Sat Jan 6 03:46:02 CET 2007
522 - added aio_load.
523
5242.3 Sat Dec 23 05:48:07 CET 2006
525 - fix off-by-one bug in aio_read, causing memory corruption
526 or crashes.
527
5282.21 Fri Dec 22 05:03:38 CET 2006
529 - minor doc updates.
530 - minor cleanups.
531 - IO::AIO::poll returns request count.
532 - undocumented and unfinished async-signal-reporting.
533
5342.2 Tue Oct 31 00:31:00 CET 2006
535 - minor doc updates.
536 - added aio_readlink.
537 - properly zero-terminate aio_read buffer.
538 - fix aio_read/write with nonzero dataoffset.
539 - reduced size of aio request structure.
540 - better diagnostics when pathnames etc. are not byte-encoded;
541 do not leak request in that case, either.
542
5432.1 Sun Oct 29 02:01:57 CET 2006
544 - INCOMPATIBLE CHANGE: replace IO::AIO::poll_some by
545 IO::AIO::max_poll_reqs and IO::AIO::max_poll_time.
546 - fix a bug in aio_move where it would fail everytime
547 it would have to copy files manually.
548 - doc updates.
549 - start threads only on (very low) demand.
550 - end superfluous threads automatically after 10s idling.
551 - add IO::AIO::max_idle to control this.
552 - some tuning applied to random places.
553 - add aio_mknod.
554
5552.0 Thu Oct 26 18:27:58 CEST 2006
556 - minor incompatibility: max_outstanding semantics have changed.
557 - major rewrite, consider all functionality EXPERIMENTAL.
558 - aio requests can be cancelled.
559 - callbacks can be (re-)set later.
560 - aio requests can choose between 9 priorities.
561 - add aio_group: aio requests can be grouped
562 into composite requests.
563 - generator interface for groups.
564 - add IO::AIO::poll_some.
565 - major documentation improvements.
566 - very minor bugfixes.
567 - add aio_nop for dummy requests.
568 - add aio_busy mainly for benchmarking and debugging.
569 - use "fast" mutexes on linux.
570 - use dynamic (and larger) buffers instead of
571 putting them onto the stack.
572 - optimise x86 and amd64 a bit.
573 - better error checking when ENOMEM.
574 - hopefully fix mem and dirp leaks on fork.
575 - warn about broken perl malloc.
576 - compiles on cygwin (but pread is broken on cygwin
577 which is not detected by autoconf, so you have to
578 edit autoconf/config.h yourself to enable emulation).
579
5801.8 Sat Jun 24 22:20:44 CEST 2006
581 - add and/or document aio_rename, aio_link, aio_symlink and aio_move.
582
5831.73 Wed Mar 1 22:49:32 CET 2006
584 - codename "jost"
585 - AIX/Solaris(?) aren't being helpful again, hardcode a value
586 for NAME_MAX and drive with your eyes closed (reported by
587 wcooley@nakedape.cc).
588
5891.72 Thu Feb 2 00:40:44 CET 2006
590 - another minor bug in aio_scandir, again, the callback was called
591 twice when the directory can't be stat'ed.
592
5931.71 Mon Dec 26 20:20:03 CET 2005
594 - grr, another minor bug in aio_scandir, this time resulting
595 in a runtime error.
596
5971.7 Mon Dec 26 19:29:48 CET 2005
598 - aio_scandir errornously called callback twice in some cases.
599 - added AnyEvent example.
600
6011.61 Wed Sep 7 19:40:42 CEST 2005
602 - no longer include $Config{libs}, as distros include too much
603 garbage in there that is not installed on typical systems
604 (for example, debian links perl against -lgdbm and many more
605 libraries despite perl not needing it, slowing down startup and
606 wasting memory).
607
6081.6 Tue Aug 30 17:44:44 CEST 2005
609 - added aio_readdir, aio_scandir.
610 - added aio_sendfile, including sendfile emulation when sendfile
611 isn't available. Linux, FreeBSD and HP-UX might work (sendfilev
612 support is unavailable on my solaris 8 machine, but preliminary
613 code is there. What's lacking is configury stuff and testing...).
614
6151.5 Sat Aug 20 02:32:19 CEST 2005
616 - create the aio threads on demand only (good after forking).
617 - somebody nagged about C89 compatibility, so this release should
618 be C89 compatible, but no guarantees for future ones.
619 - abort when the configure script fails.
620
6211.4 Wed Aug 17 08:07:27 CEST 2005
622 - forgot to recreate the pipe after forking, this could cause
623 deadlocks.
624
6251.3 Wed Aug 17 07:25:54 CEST 2005
626 - properly propagate exceptions from callbacks, instead of silently
627 eating them.
628 - use a different fork algorithm that avoids recursive callback
629 invocations and reduces fork latency in busy processes.
630 - fix a bug where the buffer scalar in aio_read got assigned the wrong
631 length after reading.
632 - fix a bug where the child would process some outstanding requests
633 from the parent.
634 - make a copy of the callback scalar, to avoid some very uncommon
635 (but valid) usages where the callback scalar changes.
636 - the callback was never freed in aio_read/aio_write.
637 - aio_read/aio_write will now set the readonly flag on the data
638 scalar for better error reporting.
639
6401.2 Wed Aug 17 01:22:58 CEST 2005
641 - verified on cygwin, linux/amd64+ia32+alpha, solaris.
642 - use SvPVbyte for filenames now. You *need* to encode your strings to
643 the external filename encoding first.
644 - fix the bug where filehandles could leak (again).
645 - clarify freebsd situation: make it work and tell me how, or go away
646 with your underdocumented, broken and outdated OS.
647 - fork'ing should now be officially supported (where linux and
648 posix contradict each other, I followed posix).
649 - only call read() once per poll, not twice (speedup).
650 - new functions: aio_rmdir, aio_symlink.
651 - force callback arguments to be undef or a reference, for better
652 error catching.
653
6541.1 Sun Aug 7 05:27:23 CEST 2005
655 - added configure script to detect availability of some calls.
656 (imperfect, as we cannot detect things like -lrt due to missing
657 feedback yet).
658 - emulate fdatasync via fsync, pread/pwrite via unsafe read/write
659 and readahead via manual reading on platforms lacking those.
660 - ported t/03_errors.t+framework by Brad Fitzpatrick
661 from Linux::AIO.
662 - removed XOPEN_SOURCE because stupid solaris 9 doesn't
663 compile with it enabled. Probably breaks others. Oh well.
664 - try to be more careful with errno on non-threaded perls.
665 - cygwins perl insisted on a matching open mode when morphing
666 the fd to an fh.
667 - convert sv's to "byte" encoding in aio_read/aio_write. Might
668 do that for pathnames, too, in the future, so make sure you
669 properly encode your pathnames.
670
6711.0 Fri Jul 22 10:43:30 CEST 2005
672 - aio_open did not reliably deliver (open) filehandles.
673 - all aio_*-functions keep a reference to the filehandle so
674 it doesn't go away while the aio requests is working on it.
675 - disable warnings in AIO.pm.
676
6770.9 Wed Jul 20 23:55:04 CEST 2005
678 - allow recursive calls to poll_cb, use less locking calls, too.
679 - fix the Gtk2-example in the SYNOPSIS.
680 - use pread/pwrite not pread64/pwrite64. this was simply a leftover
681 from Linux::AIO.
682 (found by compiling on cygwin. Unfortunately, cygwin declares but
683 does not implement pread/pwrite).
684 - only include <sys/syscall.h> on linux.
685
6860.5 Tue Jul 12 13:03:09 CEST 2005
687 - removed #include <endian.h>, it's not portable, and we don't
688 need it anyway.
689 - link against -lrt, as it might contain goodies such as fdatasync,
690 and often aio_read, which we do not use yet, but it shouldn't hurt.
691
6920.4 Mon Jul 11 05:28:25 CEST 2005
693 - added IO::AIO::flush, IO::AIO::poll.
694 - make callback argument optional for all calls.
695
6960.3 Mon Jul 11 01:42:37 CEST 2005
3 - restructured manpage. 697 - restructured manpage.
698 - added SYNOPSIS with examples for Event, Glib, Tk.
699 - remove explicit context support so I don't have to maintain
700 it for threaded perls (i.e. it should work now :).
4 701
50.2 Sun Jul 10 22:57:12 CEST 2005 7020.2 Sun Jul 10 22:57:12 CEST 2005
6 - return immediately from poll_wait if nreqs==0. 703 - return immediately from poll_wait if nreqs==0.
7 - get rid of the request pipe and use faster thread-thread 704 - get rid of the request pipe and use faster thread-thread
8 communications for most requests and responses. 705 communications for most requests and responses.

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