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Revision: 1.354
Committed: Tue Feb 20 06:54:46 2018 UTC (6 years, 2 months ago) by root
Branch: MAIN
CVS Tags: rel-4_4
Changes since 1.353: +1 -1 lines
Log Message:
4.4

File Contents

# Content
1 Revision history for IO::AIO
2
3 TODO: scandir - some dirs mostly contain subdirs - invert logic?
4 TODO: aio_cptree/mvtree
5 TODO: vmsplice? (http://kerneltrap.org/node/6505 http://lwn.net/Articles/178199/)
6 TODO: getxattr, setxattr, listxattr, removexattr etc.?
7 TODO: emulation for splice?
8 TODO: syncfs/sync windows:
9 TODO: posix_fallocate when flags=0
10 http://stackoverflow.com/questions/65170/how-to-get-name-associated-with-open-handle/5286888#5286888
11 http://blogs.msdn.com/b/adioltean/archive/2005/04/16/408947.aspx
12 http://msdn.microsoft.com/en-us/library/aa366789%28v=vs.85%29.aspx
13 http://msdn.microsoft.com/en-us/library/windows/desktop/aa366789%28v=vs.85%29.aspx
14 http://msdn.microsoft.com/en-us/library/windows/desktop/aa364425%28v=vs.85%29.aspx
15 http://msdn.microsoft.com/en-us/library/windows/desktop/aa364963%28v=vs.85%29.aspx
16 http://msdn.microsoft.com/en-us/library/windows/desktop/aa364996%28v=vs.85%29.aspx
17 http://msdn.microsoft.com/en-us/library/windows/desktop/aa364994%28v=vs.85%29.aspx
18 TODO: extra socket/tcp constants &c?
19 TODO: 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);
20 TODO: name_to_handle_At + open_by_handle_at = clone fds
21 TODO: lchown
22 TODO: mount/umount2/MS_* flags
23
24 TODO: rewrite rmtree et al. to support working directories (also speed them up)
25 TODO: maybe IO::AIO leaks fds when requests are cancelled? maybe initialise result to -1?
26 TODO: 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
28 TODO: copy_file_range, copy_file_range
29 TODO: FIDEDUPERANGE, file_ioctl.c
30 TODO: mincore
31 TODO: SOCK_CLOEXEc etc.
32 TODO: unlinkat flags, linkat flags, statat flags
33 TODO: https://kernelnewbies.org/Linux_4.11
34 TODO: define useful rules for [[$wd, $path], $path] &c and implement them
35 TODO: https://github.com/coreutils/coreutils/blob/master/src/stat.c maybe IO::AIO::FSID
36
37 4.4 Tue Feb 20 07:54:12 CET 2018
38 - new aio_slurp request.
39 - add (experimental) IO::AIO::eventfd and timerfd* function.
40 - add (experimental) IO::AIO::get_fdlimit and IO::AIO::min_fdlimit.
41 - point out that aio_copy overwrites existing files.
42 - removed filesystem magic number table from aio_statvfs docs as
43 statvfs doesn't actually return this info at all (statfs does).
44 - add a bunch of (mostly linux-specific) constants for use in ioctls
45 (see aio_ioctl docs).
46 - treescan now has a proper manpage and useful --help output.
47 - new option --sync in treescan, to sync everything in a subtree.
48 - changed default for aio_msync flags to MSYNC_SYNC.
49 - document offset/length behaviour of mprotect/madvise.
50 - support linux's renameat2 (via aio_rename2).
51 - add aio_rename2, an aio_rename with flags.
52 - add F_DUPPFD_CLOEXEC, F_OFD_[SG]ETLKW? constants.
53 - add FALLOC_FL_INSERT_RANGE, FALLOC_FL_UNSHARE_RANGE.
54 - (libeio) use posix_close if available.
55 - (libeio) internal close() calls no longer disturb errno.
56 - add IO:AIO::FALLOC_FL_UNSHARE.
57 - update schmorp.h for removal of USE_SOCKETS_AS_HANDLES
58 and better eventfd detection.
59
60 4.34 Sun May 1 19:18:24 CEST 2016
61 - def0.h was not properly generated during previous release, causing
62 compile errors on various platforms.
63 - major/minor were accidentally switched (reported by Alexander Lishenyuk).
64 - removed duplicate definition of MAP_HUGETLB, that was found due to
65 a bug in Perl::Tidy (testcase by alaska332@gmail.com).
66 - added (untested!) aio_fcntl, aio_ioctl requests.
67 - (libeio) names set via prctl are truncated to 15 chars + nul, not 16,
68 as manpages-dev originally claimed.
69
70 4.33 Mon Jan 18 12:50:10 CET 2016
71 - add IO::AIO::pipe2 function.
72 - added support for FALLOC_FL_COLLAPSE_RANGE and FALLOC_FL_ZERO_RANGE
73 constants.
74 - added support for O_TMPFILE and O_PATH constants.
75 - added support for MAP_FIXED, MAP_GROWSDOWN,MAP_32BIT, MAP_HUGETLB, MAP_STACK
76 consdtants, whether they can be sensibly used or not.
77 - use NO_INIT where applicable.
78 - update libecb.
79 - added stability canary support.
80 - updated linux super magic table to 4.3.3.
81
82 4.32 Wed Feb 11 20:32:11 CET 2015
83 - replace off_t by STRLEN where appropriate, should not result in
84 user-visible changes.
85 - update ecb.h for C11 compatibility.
86
87 4.31 Tue Jun 3 03:29:27 CEST 2014
88 - work around more 5.20 bugs. backwards compatibility my ass.
89
90 4.3 Fri Apr 11 06:22:38 CEST 2014
91 - perl5porters broke Async::Interrupt, BDB, EV, IO::AIO, OpenCL
92 without warning by switching the meaning of USE_SOCKETS_AS_HANDLES
93 in 5.18. What's so attractive about giving a shit about backwards
94 compatibility - I will never understand.
95
96 4.2 Sat Jan 25 01:13:14 CET 2014
97 - aio_group could corrupt memory because it didn't restore
98 the stack after req_submit.
99 - be more careful on (e.g. permission) errors in bin/treescan.
100 - work around changes in ExtUtils::MakeMaker.
101 - (libeio) implement aio_realpath for win32.
102 - (xthread) work around compile time bugs in ptw32.
103 - added IO::AIO::pipesize.
104 - (libecb) insignificant update.
105
106 4.19 Sun Jan 6 12:47:26 CET 2013
107 - avoid endless loop in fiemap with some XFS files.
108 - in aio_rename and aio_rmdir, specialcase the case of [$wd, "."]
109 and call rename/rmdir instead of renameat/unlinkat.
110
111 4.18 Thu Oct 11 07:01:26 CEST 2012
112 - fix unintended xthread_create by intentionalising it :)
113
114 4.17 Thu Oct 11 05:19:47 CEST 2012
115 - rename aio_fallocate to aio_allocate, to match documentation.
116 - add list of linux fsid values to aio_statvfs docs.
117 - work around a bug in btrfs' FIEMAP ioctl implementation.
118 - work around AIX bug: statvfs.f_fsid is a struct, not unsigned long
119 as per unix spec.
120
121 4.16 Tue Aug 14 05:39:03 CEST 2012
122 - aio_statvfs was wromgly marked for wd emulation, causing
123 it to malfunction for paths.
124 - fix a crash in aio_fiemap, when used on ranges without any
125 extents.
126 - work around linux kernel bug (at least in 3.2): kernel might
127 trash fiemap input arguments.
128 - work around linux kernel bug (at least in 3.2): kernel does not
129 set FIEMAP_EXTENT_LAST on last segment.
130 - work around linux kernel bug (at least in 3.2): kernel silently
131 truncates segment count if a file.
132 - make fh argument of IO::AIO::mmap optional, also add mmap/munmap
133 to quick overview.
134 - splice can corrupt data.
135 - (libeio) remove pread/pwrite emulation.
136 - do not grow mmaped scalars in aio_read.
137 - add FALLOC_FL_PUNCH_HOLE and document fallocate.
138 - provide pread/pwrite for win32, making it link again on native win32.
139
140 4.15 Tue Apr 10 06:59:00 CEST 2012
141 - always include linux/types.h for fiemap, for compatibility to
142 ancient systems (Paul Howarth).
143 - experimental support for IO::AIO::splice and ::tee (no aio_...).
144 - provide SEEK_HOLE and SEEK_DATA, if available.
145 - work around (again!) an immensely stupid bug in RHEL, defining
146 autoconf macros in linux system headers (analysed by Paul Howarth).
147
148 4.14 Sat Apr 7 02:45:18 CEST 2012
149 - fix stat structure usage on windows, which caused bogus stat results.
150 - (libeio) make readahead emulation behave more like actual readahead by never failing.
151 - new request aio_seek.
152 - new request aio_fiemap.
153 - autogenerate the #ifdef/#define 0 blocks for symbols we export.
154
155 4.12 Fri Dec 30 08:51:25 CET 2011
156 - realpath would return a random value if the name was too long,
157 instead of -1.
158 - port to c89.
159
160 4.11 Mon Oct 10 00:24:11 CEST 2011
161 - libeio didn't compile on !linux (Paul Howarth).
162
163 4.1 Sun Oct 9 10:24:11 CEST 2011
164 - IO::AIO did access uninitialised memory on unsuccessful stats.
165 - (libeio) added syncfs syscall wrapper.
166 - (libeio) set thread name on linux (ps -L/Hcx, top, gdb).
167 - (libeio) support multiple indepenent working directories.
168 - applied speling corrections by Nicholas Bamber.
169 - tune treescan #threads and #outstanding requests a bit.
170 - reduce the number of file descriptors in use at any one time
171 in treescan, to avoid running out of them (and using too much ram).
172 - take advantage of working directoriy abstractions
173 in aio_scandir and treescan.
174 - reduce compiled size by ~10% by not inlining some key functionality.
175 - added --progress switch to treescan.
176
177 4.0 Mon Jul 18 05:01:10 CEST 2011
178 - INCOMPATIBLE CHANGE: fork is no longer supported (indeed, it never was),
179 see FORK BEHAVIOUR in manpage for details.
180 - passes testsuite on win32 now and may actually work
181 (activestate 5.10.1 / MSVC6, YMMV).
182 - (libeio) fix a deadlock where a wakeup signal could be missed when
183 a timeout occured at the same time.
184 - (libeio) added realpath.
185 - (libeio) added fallocate.
186 - (libeio) disabling sendfile on darwin unfortunately broke the emulation.
187 - (libeio) do not acquire any locks when forking.
188 - (libeio) use fewer time() syscalls when waiting for new requests.
189
190 3.93 Wed Jun 29 23:44:18 CEST 2011
191 - ECB.H WAS MISSING.
192
193 3.92 Wed Jun 29 14:45:41 CEST 2011
194 - ecb.h was missing.
195
196 3.91 Wed Jun 29 13:24:42 CEST 2011
197 - (libeio) work around a Linux (and likely FreeBSD and other
198 kernels) bug where sendfile would not transfer all the requested
199 bytes on large transfers, using a heuristic.
200 - buggy sendfile caused aio_move/copy to sometimes fail for big
201 files (fortunately it checks that the whole file has been
202 transferred...)
203 - use libecb for higher performance and higher portability.
204 - (libeio) disable sendfile on darwin, it's too broken.
205 - disable fork tests on !linux, as only linux supports mixing
206 pthread and fork in perl.
207 - document the fact that fork doesn't work anymore when using
208 this module, on anything !GNU/Linux.
209 - increase timeout in t/04_fork.t, as too many CPAN-tester setups
210 run on a 0.1MHz cpu. Or so.
211
212 3.9 Fri May 27 02:43:47 CEST 2011
213 - (libeio) fix memory corruption in aio_readdirx for the flags
214 combination READDIR_STAT_ORDER | READDIR_DIRS_FIRST.
215 - add lots of newer POSIX and GNU/Linux-specific open
216 flags.
217
218 3.8 Sun Mar 27 12:25:33 CEST 2011
219 - use nonstandard but maybe-working-on-bsd fork technique.
220 - support a max_idle value of 0.
221 - support setting of idle timeout value (IO::AIO::idle_timeout).
222
223 3.72 Fri Feb 11 04:25:38 CET 2011
224 - use _POSIX_MEMLOCK_RANGE to detect mlock/munlock.
225 - aio_mknod always used a dev_t value of 0.
226 - new treescan option: --grep.
227 - add more S_IF macros, and major/minor/makedev "macros".
228
229 3.71 Thu Dec 30 08:18:46 CET 2010
230 - the numerical result value passed to callbacks did not stringify
231 correctly, due to internal reuse and failure to reset the sv flags.
232 - actually test for posix_[mf]advise, as at least uClibc defines
233 _POSIX_ADVISORY_INFO without actually having any of the required
234 funcitonality. ugh.
235
236 3.7 Mon Nov 1 23:00:34 CET 2010
237 - implement/add madvise, mmap, munmap, aio_mlockall, munlockall,
238 aio_mlock, munlock, msync and mtouch to @EXPORT_OK.
239 - document the sad state of affairs w.r.t. pthread on many bsds.
240 - do not enable mmap on systems without _POSIX_MAPPED_FILES
241 (openbsd 4.8).
242 - do not leak memory in IO::AIO::mmap when the scalar already
243 had string-data.
244 - add O_RDWR, O_APPEND and O_EXCL symbols and semi-document
245 them.
246 - cache the result IV, for a minor speedup in the common case.
247 - croak when an mmapped-scalar changes location, to detect
248 user-errors better.
249 - fix aio_readlink prototype.
250
251 3.65 Wed Mar 31 02:45:05 CEST 2010
252 - actually use PATH_MAX instead of NAME_MAX for readlink, as to not
253 cut off long pathnames in aio_readlink (based on patch by
254 Rasmus Andersson).
255 - a double fork partially killed the event pipe (great testcase
256 by dormando). affects IO::AIO, BDB and Async::Interrupt.
257 - suck steve's dick and rename our symbols to avoid colliding
258 with nonstandard identifier spam on the broken os x pseudo-os.
259 affects IO::AIO and BDB.
260
261 3.6 Mon Jan 11 00:43:39 CET 2010
262 - (libeio) more fixes for the freebsd/apple sendfile - broken by
263 manpage standards, but apparently correct accoridng to actual
264 kernel sources.
265 - add IO::AIO::mmap/munmap support.
266 - add IO::AIO::m(un)lockall support.
267 - clean up manpage.
268
269 3.5 Thu Jan 7 21:25:04 CET 2010
270 - (liebio) fix freebsd sendfile (Vanilla Hsu).
271 - (libeio) also fix darwin sendfile that suffered from a similar bug.
272 - add aio_statvfs as interface to statvfs/fstatvfs.
273 - work around buggy symlink() on cygwin in the testsuite.
274 - wtf. freebsd-8.0 actually passes the testsuite! I knew
275 they could implement fork and semaphores one day! cheers!
276
277 3.4 Sat Jan 2 15:13:04 CET 2010
278 - (libeio) max_poll_time was not properly converted to ticks.
279 - clarify cancel_subs description.
280 - IO::AIO::sendfile did not actually return the return value
281 from the sendfile call.
282 - implement aio_msync, aio_mtouch.
283 - (libeio) tentatively support darwin in sendfile.
284
285 3.31 Thu Nov 12 02:14:29 CET 2009
286 - fix result status documentation of aio_copy, aio_move.
287 - speed up object creation considerably by avoiding
288 hash lookups.
289
290 3.3 Wed Aug 5 13:52:58 CEST 2009
291 - use common::sense.
292 - use common schmorp.h header.
293 - allow integers (file descriptors) in addition to file handles.
294 - take advantage of linux' eventfd (but it seems slower on smp?).
295 - use poll not select on posix platforms.
296
297 3.261 Wed Jul 1 10:11:51 CEST 2009
298 - more 0S X workarounds (patch by Tokuhiro Matsuno).
299
300 3.26 Tue Jun 30 09:33:26 CEST 2009
301 - 0S X of course claims to be posix 2008 but lacks posix_fadvise.
302 try to work around this horribly broken OS in a somewhat hackish
303 way. might help other os's too.
304
305 3.25 Sat Jun 27 05:18:26 CEST 2009
306 - added IO::AIO::fadvise and IO::AIO::sendfile.
307 - (libeio) replaced quicksort+insertion sort by a tuned radix
308 sort + insertion sort, resulting in comparable runtime (usually
309 faster) to the old version, but without any ill side effects on
310 degenerated (for quicksort) data.
311 - (libeio) correctly sort dirs by inodes if we have perfect type
312 knowledge and DIRS_FIRST is used.
313 - (libeio) internally the wrong DT_* constants were used, but no
314 known system has differing EIO_DT_*/DT_* values, so not an issue.
315 - removed a (harmless) assert that was left over on the code
316 but should not have been.
317 - use more correct types (change IO length from IV to VAL64,
318 which makes a difference on systems without 64 bit perls).
319
320 3.23 Sat Jun 13 16:57:58 CEST 2009
321 - fix off-by-one bug in aio_readdir that was introduced in the
322 rushed 3.22 release.
323
324 3.22 Sat Jun 13 15:32:40 CEST 2009
325 - speed up readdirx sort algorithm slightly.
326 - bin/treescan was missing from distro tarball.
327
328 3.21 Fri Jun 12 18:45:53 CEST 2009
329 - new options --dirs and --files for treescan.
330 - install bin/treescan by default.
331 - (libeio) aio_readdir can now be cancelled while executing.
332 - fix a printf format string for 64 bit systems (could lead
333 to problems on big endian 64 bit systems).
334 - do not use qsort() but our own algorithm: glibc initialises
335 the whole locale and I/O subsystem inside qsort, causing
336 a stack overflow on 32 bit machines. The new sort uses much less
337 stack and is more than twice as fast in typical situations.
338
339 3.2 Sun Jun 7 20:30:05 CEST 2009
340 - (libeio) pwrite emulation was even more flawed than intended and did
341 not restore the file offset.
342 - add aio_readdirx, which can return inode and filetype and sort
343 the names in various ways.
344 - unfortunately, utime, chmod, chown on an open file that has just
345 been written can easily block, which caused aio_copy to block the
346 process. no more!
347 - no longer rely on dst path in aio_copy when futime is available.
348
349 3.19 Tue Apr 21 22:05:21 CEST 2009
350 - more perl 5.10 workarounds for aio_read and write.
351 - aio_write no longer modifies the sv (if possible).
352 - aio_read now works correctly with magic values.
353
354 3.18 Sun Apr 19 21:17:32 CEST 2009
355 - better diagnostics when some aio_* functions get passed an illegal fh.
356 - try to avoid crashes due to incompatible 5.10 API changes. grmbl.
357
358 3.17 Thu Nov 20 08:45:36 CET 2008
359 - (libeio) added aio_sync_file_range (untested).
360 - add aio_busy to @IO::AIO::AIO_REQ.
361
362 3.16 Wed Oct 22 18:28:01 CEST 2008
363 - use SvREFCNT_inc instead of SvREFCNT_inc_NN in a non-speed critical
364 part to improve portability to perl 5.8 (reported by szymon).
365
366 3.15 Mon Oct 13 00:39:55 CEST 2008
367 - automatic removal of feeders was broken.
368 - (libeio) use a more robust method to detect whether a feeder
369 has added something to the group or not.
370
371 3.1 Thu Oct 2 13:34:40 CEST 2008
372 - pre-deref the passed callback object, for increased speed
373 and decreased memory usage.
374 - call on_next_submit callback even for aio_group - impact unknown,
375 but seems more correct.
376 - $req->cb now returns the original callback.
377 - (libeio) pass EIO_GROUP/aio_group requests through the queue without
378 requiring a thread switch.
379 - (libeio) status code of aio_futime and aio_utime was always passed 0.
380 - do some other µ-optimisations.
381
382 3.07 Sat Aug 2 16:06:13 CEST 2008
383 - do not include LIBS in autoconf tests.
384
385 3.06 Tue Jul 15 12:41:32 CEST 2008
386 - move preadwritelock definition before it's first reference,
387 to make it compile again on broken platforms (they still exist)
388 or badly cofngiured perls (redhat...), reported by Rob Bloodgood.
389
390 3.05 Thu Jun 19 23:23:52 CEST 2008
391 - work around perl overriding readdir etc. with thread-unsafe
392 (sic!) versions.
393
394 3.04 Wed Jun 18 01:35:38 CEST 2008
395 - (libeio) fix eio_mknod, which confused it's arguments.
396 - (libeio) do not use readdir_r, as Ulrich Drepper pointed out that this
397 is stupid.
398 - (libeio) fix eio__readahead prototype, patch by Jost Krieger.
399 - (libeio) fix a bug that could potentially cause IO::AIO
400 not to get initialised properly.
401
402 3.03 Thu May 29 05:33:30 CEST 2008
403 - (libeio) correctly call pthread_attr_destroy ().
404 - (libeio) work around broken bsd headers once more.
405 - reduce shared library size again by not including wrappers.
406 - max_outstanding could cause poll to enter a busy-waiting loop.
407 - document the new IO::AIO::poll_cb result value.
408
409 3.02 Mon May 12 02:32:02 CEST 2008
410 - fix a memory leak on aio_readlink.
411 - bring back working fchmod.
412 - nop and busy now set result to 0.
413 - set errno to ENOMEM when allocation fails.
414
415 3.01 Sun May 11 03:07:03 CEST 2008
416 - (libeio) make it compile on systems without readahead or readdir_r.
417 - (libeio) improve configure check for readahead availability.
418 - do not try to link against -lrt.
419 - use a separate configure script for IO::AIO (not the libeio one).
420
421 3.0 Sun May 11 00:57:14 CEST 2008
422 - added bin/treescan to the distribution.
423 - switched to using libeio.
424 - LOTS OF INCOMPATIBLE CHANGES:
425 - remove signal functionality, it is not worth the effort.
426 - max_outstanding no longer returns the previous number of requests.
427 - poll_cb no longer returns number of requests.
428
429 2.62 Sat Apr 26 13:59:33 CEST 2008
430 - port to solaris perls configured for old posix
431 (analysed by Jost Krieger).
432 - keep a reference to the perl filehandle object in aio_close,
433 so it doesn't get closed prematurely, leading to ugly races.
434
435 2.61 Wed Apr 16 18:45:02 CEST 2008
436 - fix treescan output duplication and improve output ordering.
437 also display files given on the commandline.
438 - use a different algorithm for aio_close that is faster
439 and probably has even lower chances of blocking.
440 - do our own stack memory management for threads - linux
441 allocates outrageous amounts of VM (not so bad unless you
442 use mlockall...), which severely limits the number of threads
443 on 32-bit arches: stack size is the larger of PTHREAD_STACK_MIN
444 and 4096 * sizeof (long) (usually this is 16..64k).
445
446 2.6 Sun Mar 30 08:28:11 CEST 2008
447 - added aio_sync.
448 - added aio_pathsync.
449 - fix prototypes of (void) functions.
450
451 2.51 Sat Oct 6 16:04:54 CEST 2007
452 - perlio isn't generally threadsafe, so aio_close could not work reliably.
453 aio_close now tries a safe hack that might not be that asynchronous
454 (see the manpage for details).
455 - discard callback return values as to not grow the stack endlessly
456 when poll_cb handles many requests without returning.
457 - minor code cleanups.
458
459 2.5 Thu Oct 4 14:49:08 CEST 2007
460 - replaced _fd2fh with faster xs code.
461 - aio_close will now try to do "the right thing" and thus might
462 work sensibly for the very first time.
463
464 2.41 Mon Sep 24 21:28:21 CEST 2007
465 - after fork, invest some work to make sure that the poll_fileno
466 stays stable (by dup2'ing the new fd over the old one), to make
467 it easier for programs/libs that don't control their forking
468 behaviour and cannot recreate their watchers.
469
470 2.4 Sun Aug 5 18:44:22 CEST 2007
471 - add aio_truncate, aio_chmod, aio_chown, aio_utime (linux
472 successfully demonstrated that you can block on futimes...).
473 - allow undef as fileoffset for aio_read/write and use read/write(2)
474 internally (useful for sockets or O_APPEND handles).
475 - allow undef for length in aio_write.
476 - negative dataoffsets work as expected now in aio_read/aio_write.
477 - use NV instead of UV for 32 bit perls and file offsets, as NVs
478 have a larger range then.
479 - shared code between BDB and IO::AIO.
480 - aio_busy was completely broken. now fixed.
481 - readahead emulation now returns something.
482 - correctly set errno to ENOSYS on unimplemented functions
483 (should never happen, though).
484 - large changes to make it partially compile and run on win32,
485 but win32 lacks too much functionality, and perl overrides way
486 too many functions with crashing versions.
487
488 2.33 Tue Jan 23 23:55:41 CET 2007
489 - fix install path (Andreas J. Koenig).
490
491 2.32 Mon Jan 22 16:56:23 CET 2007
492 - added aio_rmtree.
493 - wow, aio_mkdir was missing.
494 - aio_load did return undef on error, not -1.
495 - use prefixexp not prefix in autoconf.pm
496 (suggested by ... rt.cpan.org unreachable).
497 - avoid installing autoconf.pm.
498
499 2.31 Sat Jan 6 03:46:02 CET 2007
500 - added aio_load.
501
502 2.3 Sat Dec 23 05:48:07 CET 2006
503 - fix off-by-one bug in aio_read, causing memory corruption
504 or crashes.
505
506 2.21 Fri Dec 22 05:03:38 CET 2006
507 - minor doc updates.
508 - minor cleanups.
509 - IO::AIO::poll returns request count.
510 - undocumented and unfinished async-signal-reporting.
511
512 2.2 Tue Oct 31 00:31:00 CET 2006
513 - minor doc updates.
514 - added aio_readlink.
515 - properly zero-terminate aio_read buffer.
516 - fix aio_read/write with nonzero dataoffset.
517 - reduced size of aio request structure.
518 - better diagnostics when pathnames etc. are not byte-encoded;
519 do not leak request in that case, either.
520
521 2.1 Sun Oct 29 02:01:57 CET 2006
522 - INCOMPATIBLE CHANGE: replace IO::AIO::poll_some by
523 IO::AIO::max_poll_reqs and IO::AIO::max_poll_time.
524 - fix a bug in aio_move where it would fail everytime
525 it would have to copy files manually.
526 - doc updates.
527 - start threads only on (very low) demand.
528 - end superfluous threads automatically after 10s idling.
529 - add IO::AIO::max_idle to control this.
530 - some tuning applied to random places.
531 - add aio_mknod.
532
533 2.0 Thu Oct 26 18:27:58 CEST 2006
534 - minor incompatibility: max_outstanding semantics have changed.
535 - major rewrite, consider all functionality EXPERIMENTAL.
536 - aio requests can be cancelled.
537 - callbacks can be (re-)set later.
538 - aio requests can choose between 9 priorities.
539 - add aio_group: aio requests can be grouped
540 into composite requests.
541 - generator interface for groups.
542 - add IO::AIO::poll_some.
543 - major documentation improvements.
544 - very minor bugfixes.
545 - add aio_nop for dummy requests.
546 - add aio_busy mainly for benchmarking and debugging.
547 - use "fast" mutexes on linux.
548 - use dynamic (and larger) buffers instead of
549 putting them onto the stack.
550 - optimise x86 and amd64 a bit.
551 - better error checking when ENOMEM.
552 - hopefully fix mem and dirp leaks on fork.
553 - warn about broken perl malloc.
554 - compiles on cygwin (but pread is broken on cygwin
555 which is not detected by autoconf, so you have to
556 edit autoconf/config.h yourself to enable emulation).
557
558 1.8 Sat Jun 24 22:20:44 CEST 2006
559 - add and/or document aio_rename, aio_link, aio_symlink and aio_move.
560
561 1.73 Wed Mar 1 22:49:32 CET 2006
562 - codename "jost"
563 - AIX/Solaris(?) aren't being helpful again, hardcode a value
564 for NAME_MAX and drive with your eyes closed (reported by
565 wcooley@nakedape.cc).
566
567 1.72 Thu Feb 2 00:40:44 CET 2006
568 - another minor bug in aio_scandir, again, the callback was called
569 twice when the directory can't be stat'ed.
570
571 1.71 Mon Dec 26 20:20:03 CET 2005
572 - grr, another minor bug in aio_scandir, this time resulting
573 in a runtime error.
574
575 1.7 Mon Dec 26 19:29:48 CET 2005
576 - aio_scandir errornously called callback twice in some cases.
577 - added AnyEvent example.
578
579 1.61 Wed Sep 7 19:40:42 CEST 2005
580 - no longer include $Config{libs}, as distros include too much
581 garbage in there that is not installed on typical systems
582 (for example, debian links perl against -lgdbm and many more
583 libraries despite perl not needing it, slowing down startup and
584 wasting memory).
585
586 1.6 Tue Aug 30 17:44:44 CEST 2005
587 - added aio_readdir, aio_scandir.
588 - added aio_sendfile, including sendfile emulation when sendfile
589 isn't available. Linux, FreeBSD and HP-UX might work (sendfilev
590 support is unavailable on my solaris 8 machine, but preliminary
591 code is there. What's lacking is configury stuff and testing...).
592
593 1.5 Sat Aug 20 02:32:19 CEST 2005
594 - create the aio threads on demand only (good after forking).
595 - somebody nagged about C89 compatibility, so this release should
596 be C89 compatible, but no guarantees for future ones.
597 - abort when the configure script fails.
598
599 1.4 Wed Aug 17 08:07:27 CEST 2005
600 - forgot to recreate the pipe after forking, this could cause
601 deadlocks.
602
603 1.3 Wed Aug 17 07:25:54 CEST 2005
604 - properly propagate exceptions from callbacks, instead of silently
605 eating them.
606 - use a different fork algorithm that avoids recursive callback
607 invocations and reduces fork latency in busy processes.
608 - fix a bug where the buffer scalar in aio_read got assigned the wrong
609 length after reading.
610 - fix a bug where the child would process some outstanding requests
611 from the parent.
612 - make a copy of the callback scalar, to avoid some very uncommon
613 (but valid) usages where the callback scalar changes.
614 - the callback was never freed in aio_read/aio_write.
615 - aio_read/aio_write will now set the readonly flag on the data
616 scalar for better error reporting.
617
618 1.2 Wed Aug 17 01:22:58 CEST 2005
619 - verified on cygwin, linux/amd64+ia32+alpha, solaris.
620 - use SvPVbyte for filenames now. You *need* to encode your strings to
621 the external filename encoding first.
622 - fix the bug where filehandles could leak (again).
623 - clarify freebsd situation: make it work and tell me how, or go away
624 with your underdocumented, broken and outdated OS.
625 - fork'ing should now be officially supported (where linux and
626 posix contradict each other, I followed posix).
627 - only call read() once per poll, not twice (speedup).
628 - new functions: aio_rmdir, aio_symlink.
629 - force callback arguments to be undef or a reference, for better
630 error catching.
631
632 1.1 Sun Aug 7 05:27:23 CEST 2005
633 - added configure script to detect availability of some calls.
634 (imperfect, as we cannot detect things like -lrt due to missing
635 feedback yet).
636 - emulate fdatasync via fsync, pread/pwrite via unsafe read/write
637 and readahead via manual reading on platforms lacking those.
638 - ported t/03_errors.t+framework by Brad Fitzpatrick
639 from Linux::AIO.
640 - removed XOPEN_SOURCE because stupid solaris 9 doesn't
641 compile with it enabled. Probably breaks others. Oh well.
642 - try to be more careful with errno on non-threaded perls.
643 - cygwins perl insisted on a matching open mode when morphing
644 the fd to an fh.
645 - convert sv's to "byte" encoding in aio_read/aio_write. Might
646 do that for pathnames, too, in the future, so make sure you
647 properly encode your pathnames.
648
649 1.0 Fri Jul 22 10:43:30 CEST 2005
650 - aio_open did not reliably deliver (open) filehandles.
651 - all aio_*-functions keep a reference to the filehandle so
652 it doesn't go away while the aio requests is working on it.
653 - disable warnings in AIO.pm.
654
655 0.9 Wed Jul 20 23:55:04 CEST 2005
656 - allow recursive calls to poll_cb, use less locking calls, too.
657 - fix the Gtk2-example in the SYNOPSIS.
658 - use pread/pwrite not pread64/pwrite64. this was simply a leftover
659 from Linux::AIO.
660 (found by compiling on cygwin. Unfortunately, cygwin declares but
661 does not implement pread/pwrite).
662 - only include <sys/syscall.h> on linux.
663
664 0.5 Tue Jul 12 13:03:09 CEST 2005
665 - removed #include <endian.h>, it's not portable, and we don't
666 need it anyway.
667 - link against -lrt, as it might contain goodies such as fdatasync,
668 and often aio_read, which we do not use yet, but it shouldn't hurt.
669
670 0.4 Mon Jul 11 05:28:25 CEST 2005
671 - added IO::AIO::flush, IO::AIO::poll.
672 - make callback argument optional for all calls.
673
674 0.3 Mon Jul 11 01:42:37 CEST 2005
675 - restructured manpage.
676 - added SYNOPSIS with examples for Event, Glib, Tk.
677 - remove explicit context support so I don't have to maintain
678 it for threaded perls (i.e. it should work now :).
679
680 0.2 Sun Jul 10 22:57:12 CEST 2005
681 - return immediately from poll_wait if nreqs==0.
682 - get rid of the request pipe and use faster thread-thread
683 communications for most requests and responses.
684
685 0.1
686 - cloned from Linux::AIO, which is very similar.
687