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Comparing IO-AIO/Changes (file contents):
Revision 1.73 by root, Sun Oct 22 13:52:11 2006 UTC vs.
Revision 1.375 by root, Thu Nov 29 21:48:44 2018 UTC

1Revision history for IO::AIO 1Revision history for IO::AIO
2 2
3TODO: better autoconf.pm that can return LIBS etc. 3TODO: scandir - some dirs mostly contain subdirs - invert logic?
4TODO: use feeder for aio_scandir. 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
5 23
62.0 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
39TODO: dump config.log when automated testign and configure fails
40TODO: ns time resolution in utime
41
42 - add IO::AIO::MCL_ONFAULT for mlockall, add IO::AIO::mlockall.
43 - neither sys/mkdev.h nor sys/sysmacros.h were included, even when they
44 were detected by autoconf.
45
464.6 Sat Aug 25 21:58:36 CEST 2018
47 - add st_btime, st_btimesec, st_btimensec and st_gen accessors,
48 mostly for bsds which expose birthtime and st_gen members (netbsd, freebsd
49 but only st_gen on openbsd because they compiled their perl without support
50 for birthtimes).
51 - fix madvise and munlock to properly support negative offsets.
52 - allocate fd for the aio_close at boot time, to guarantee it working
53 later, rather than calling abort when it fails. also avoids
54 close-on-exec race issues after module load.
55 - #undef utime on win32, maybe this helps some reports of utime hangs.
56 - minor doc improvements.
57 - minor configure cleanups.
58 - use $Config{perllibs} instead of libs for configure. might help people
59 who didn'T install all perl dependencies (might break things as well).
60
614.54 Tue Aug 14 13:54:48 CEST 2018
62 - include sys/mkdev.h or sys/sysmacros.h if available.
63 - further tweaks to configure invocation for systems requiring --rpath.
64 - no longer rely on custom paths on win32 platforms.
65 - try to work around buggy PAGESIZE macro on solaris.
66
674.53 Tue Aug 14 11:27:50 CEST 2018
68 - add $Config{libs} to LIBS for configure, to work around systems
69 with broken library dependencies (... openbsd).
70
714.52 Sun Aug 12 08:09:45 CEST 2018
72 - config.h.in was missing in distribution.
73
744.51 Sun Aug 12 07:24:14 CEST 2018
75 - complete rework of the autoconf framework: IO::AIO now uses its own
76 config.h, separate from libeio, and tries to test the actual perl
77 environment, not the standard system environment.
78 - provide nanosecond-accracy stat time accessors for both perl and IO::AIO
79 stat functions.
80 - removed non-portable C++ syntax from eio.c.
81 - try to fix readdir tests on cygwin spuriously failing.
82
834.5 Wed Aug 1 00:23:55 CEST 2018
84 - aio_mtouch touch all pages as requested, not just the first page in most cases.
85 - new function: IO::AIO::mremap, linux-specific mremap, with constants MREMAP_MAYMOVE
86 and MREMAP_FIXED.
87 - add O_ACCMODE.
88 - add (undocumented) MSG_CMSG_CLOEXEC and SOCK_CLOEXEC constants.
89
904.4 Tue Feb 20 07:54:12 CET 2018
91 - new aio_slurp request.
92 - add (experimental) IO::AIO::eventfd and timerfd* function.
93 - add (experimental) IO::AIO::get_fdlimit and IO::AIO::min_fdlimit.
94 - point out that aio_copy overwrites existing files.
95 - removed filesystem magic number table from aio_statvfs docs as
96 statvfs doesn't actually return this info at all (statfs does).
97 - add a bunch of (mostly linux-specific) constants for use in ioctls
98 (see aio_ioctl docs).
99 - treescan now has a proper manpage and useful --help output.
100 - new option --sync in treescan, to sync everything in a subtree.
101 - changed default for aio_msync flags to MSYNC_SYNC.
102 - document offset/length behaviour of mprotect/madvise.
103 - support linux's renameat2 (via aio_rename2).
104 - add aio_rename2, an aio_rename with flags.
105 - add F_DUPPFD_CLOEXEC, F_OFD_[SG]ETLKW? constants.
106 - add FALLOC_FL_INSERT_RANGE, FALLOC_FL_UNSHARE_RANGE.
107 - (libeio) use posix_close if available.
108 - (libeio) internal close() calls no longer disturb errno.
109 - add IO:AIO::FALLOC_FL_UNSHARE.
110 - update schmorp.h for removal of USE_SOCKETS_AS_HANDLES
111 and better eventfd detection.
112
1134.34 Sun May 1 19:18:24 CEST 2016
114 - def0.h was not properly generated during previous release, causing
115 compile errors on various platforms.
116 - major/minor were accidentally switched (reported by Alexander Lishenyuk).
117 - removed duplicate definition of MAP_HUGETLB, that was found due to
118 a bug in Perl::Tidy (testcase by alaska332@gmail.com).
119 - added (untested!) aio_fcntl, aio_ioctl requests.
120 - (libeio) names set via prctl are truncated to 15 chars + nul, not 16,
121 as manpages-dev originally claimed.
122
1234.33 Mon Jan 18 12:50:10 CET 2016
124 - add IO::AIO::pipe2 function.
125 - added support for FALLOC_FL_COLLAPSE_RANGE and FALLOC_FL_ZERO_RANGE
126 constants.
127 - added support for O_TMPFILE and O_PATH constants.
128 - added support for MAP_FIXED, MAP_GROWSDOWN,MAP_32BIT, MAP_HUGETLB, MAP_STACK
129 consdtants, whether they can be sensibly used or not.
130 - use NO_INIT where applicable.
131 - update libecb.
132 - added stability canary support.
133 - updated linux super magic table to 4.3.3.
134
1354.32 Wed Feb 11 20:32:11 CET 2015
136 - replace off_t by STRLEN where appropriate, should not result in
137 user-visible changes.
138 - update ecb.h for C11 compatibility.
139
1404.31 Tue Jun 3 03:29:27 CEST 2014
141 - work around more 5.20 bugs. backwards compatibility my ass.
142
1434.3 Fri Apr 11 06:22:38 CEST 2014
144 - perl5porters broke Async::Interrupt, BDB, EV, IO::AIO, OpenCL
145 without warning by switching the meaning of USE_SOCKETS_AS_HANDLES
146 in 5.18. What's so attractive about giving a shit about backwards
147 compatibility - I will never understand.
148
1494.2 Sat Jan 25 01:13:14 CET 2014
150 - aio_group could corrupt memory because it didn't restore
151 the stack after req_submit.
152 - be more careful on (e.g. permission) errors in bin/treescan.
153 - work around changes in ExtUtils::MakeMaker.
154 - (libeio) implement aio_realpath for win32.
155 - (xthread) work around compile time bugs in ptw32.
156 - added IO::AIO::pipesize.
157 - (libecb) insignificant update.
158
1594.19 Sun Jan 6 12:47:26 CET 2013
160 - avoid endless loop in fiemap with some XFS files.
161 - in aio_rename and aio_rmdir, specialcase the case of [$wd, "."]
162 and call rename/rmdir instead of renameat/unlinkat.
163
1644.18 Thu Oct 11 07:01:26 CEST 2012
165 - fix unintended xthread_create by intentionalising it :)
166
1674.17 Thu Oct 11 05:19:47 CEST 2012
168 - rename aio_fallocate to aio_allocate, to match documentation.
169 - add list of linux fsid values to aio_statvfs docs.
170 - work around a bug in btrfs' FIEMAP ioctl implementation.
171 - work around AIX bug: statvfs.f_fsid is a struct, not unsigned long
172 as per unix spec.
173
1744.16 Tue Aug 14 05:39:03 CEST 2012
175 - aio_statvfs was wromgly marked for wd emulation, causing
176 it to malfunction for paths.
177 - fix a crash in aio_fiemap, when used on ranges without any
178 extents.
179 - work around linux kernel bug (at least in 3.2): kernel might
180 trash fiemap input arguments.
181 - work around linux kernel bug (at least in 3.2): kernel does not
182 set FIEMAP_EXTENT_LAST on last segment.
183 - work around linux kernel bug (at least in 3.2): kernel silently
184 truncates segment count if a file.
185 - make fh argument of IO::AIO::mmap optional, also add mmap/munmap
186 to quick overview.
187 - splice can corrupt data.
188 - (libeio) remove pread/pwrite emulation.
189 - do not grow mmaped scalars in aio_read.
190 - add FALLOC_FL_PUNCH_HOLE and document fallocate.
191 - provide pread/pwrite for win32, making it link again on native win32.
192
1934.15 Tue Apr 10 06:59:00 CEST 2012
194 - always include linux/types.h for fiemap, for compatibility to
195 ancient systems (Paul Howarth).
196 - experimental support for IO::AIO::splice and ::tee (no aio_...).
197 - provide SEEK_HOLE and SEEK_DATA, if available.
198 - work around (again!) an immensely stupid bug in RHEL, defining
199 autoconf macros in linux system headers (analysed by Paul Howarth).
200
2014.14 Sat Apr 7 02:45:18 CEST 2012
202 - fix stat structure usage on windows, which caused bogus stat results.
203 - (libeio) make readahead emulation behave more like actual readahead by never failing.
204 - new request aio_seek.
205 - new request aio_fiemap.
206 - autogenerate the #ifdef/#define 0 blocks for symbols we export.
207
2084.12 Fri Dec 30 08:51:25 CET 2011
209 - realpath would return a random value if the name was too long,
210 instead of -1.
211 - port to c89.
212
2134.11 Mon Oct 10 00:24:11 CEST 2011
214 - libeio didn't compile on !linux (Paul Howarth).
215
2164.1 Sun Oct 9 10:24:11 CEST 2011
217 - IO::AIO did access uninitialised memory on unsuccessful stats.
218 - (libeio) added syncfs syscall wrapper.
219 - (libeio) set thread name on linux (ps -L/Hcx, top, gdb).
220 - (libeio) support multiple indepenent working directories.
221 - applied speling corrections by Nicholas Bamber.
222 - tune treescan #threads and #outstanding requests a bit.
223 - reduce the number of file descriptors in use at any one time
224 in treescan, to avoid running out of them (and using too much ram).
225 - take advantage of working directoriy abstractions
226 in aio_scandir and treescan.
227 - reduce compiled size by ~10% by not inlining some key functionality.
228 - added --progress switch to treescan.
229
2304.0 Mon Jul 18 05:01:10 CEST 2011
231 - INCOMPATIBLE CHANGE: fork is no longer supported (indeed, it never was),
232 see FORK BEHAVIOUR in manpage for details.
233 - passes testsuite on win32 now and may actually work
234 (activestate 5.10.1 / MSVC6, YMMV).
235 - (libeio) fix a deadlock where a wakeup signal could be missed when
236 a timeout occured at the same time.
237 - (libeio) added realpath.
238 - (libeio) added fallocate.
239 - (libeio) disabling sendfile on darwin unfortunately broke the emulation.
240 - (libeio) do not acquire any locks when forking.
241 - (libeio) use fewer time() syscalls when waiting for new requests.
242
2433.93 Wed Jun 29 23:44:18 CEST 2011
244 - ECB.H WAS MISSING.
245
2463.92 Wed Jun 29 14:45:41 CEST 2011
247 - ecb.h was missing.
248
2493.91 Wed Jun 29 13:24:42 CEST 2011
250 - (libeio) work around a Linux (and likely FreeBSD and other
251 kernels) bug where sendfile would not transfer all the requested
252 bytes on large transfers, using a heuristic.
253 - buggy sendfile caused aio_move/copy to sometimes fail for big
254 files (fortunately it checks that the whole file has been
255 transferred...)
256 - use libecb for higher performance and higher portability.
257 - (libeio) disable sendfile on darwin, it's too broken.
258 - disable fork tests on !linux, as only linux supports mixing
259 pthread and fork in perl.
260 - document the fact that fork doesn't work anymore when using
261 this module, on anything !GNU/Linux.
262 - increase timeout in t/04_fork.t, as too many CPAN-tester setups
263 run on a 0.1MHz cpu. Or so.
264
2653.9 Fri May 27 02:43:47 CEST 2011
266 - (libeio) fix memory corruption in aio_readdirx for the flags
267 combination READDIR_STAT_ORDER | READDIR_DIRS_FIRST.
268 - add lots of newer POSIX and GNU/Linux-specific open
269 flags.
270
2713.8 Sun Mar 27 12:25:33 CEST 2011
272 - use nonstandard but maybe-working-on-bsd fork technique.
273 - support a max_idle value of 0.
274 - support setting of idle timeout value (IO::AIO::idle_timeout).
275
2763.72 Fri Feb 11 04:25:38 CET 2011
277 - use _POSIX_MEMLOCK_RANGE to detect mlock/munlock.
278 - aio_mknod always used a dev_t value of 0.
279 - new treescan option: --grep.
280 - add more S_IF macros, and major/minor/makedev "macros".
281
2823.71 Thu Dec 30 08:18:46 CET 2010
283 - the numerical result value passed to callbacks did not stringify
284 correctly, due to internal reuse and failure to reset the sv flags.
285 - actually test for posix_[mf]advise, as at least uClibc defines
286 _POSIX_ADVISORY_INFO without actually having any of the required
287 funcitonality. ugh.
288
2893.7 Mon Nov 1 23:00:34 CET 2010
290 - implement/add madvise, mmap, munmap, aio_mlockall, munlockall,
291 aio_mlock, munlock, msync and mtouch to @EXPORT_OK.
292 - document the sad state of affairs w.r.t. pthread on many bsds.
293 - do not enable mmap on systems without _POSIX_MAPPED_FILES
294 (openbsd 4.8).
295 - do not leak memory in IO::AIO::mmap when the scalar already
296 had string-data.
297 - add O_RDWR, O_APPEND and O_EXCL symbols and semi-document
298 them.
299 - cache the result IV, for a minor speedup in the common case.
300 - croak when an mmapped-scalar changes location, to detect
301 user-errors better.
302 - fix aio_readlink prototype.
303
3043.65 Wed Mar 31 02:45:05 CEST 2010
305 - actually use PATH_MAX instead of NAME_MAX for readlink, as to not
306 cut off long pathnames in aio_readlink (based on patch by
307 Rasmus Andersson).
308 - a double fork partially killed the event pipe (great testcase
309 by dormando). affects IO::AIO, BDB and Async::Interrupt.
310 - suck steve's dick and rename our symbols to avoid colliding
311 with nonstandard identifier spam on the broken os x pseudo-os.
312 affects IO::AIO and BDB.
313
3143.6 Mon Jan 11 00:43:39 CET 2010
315 - (libeio) more fixes for the freebsd/apple sendfile - broken by
316 manpage standards, but apparently correct accoridng to actual
317 kernel sources.
318 - add IO::AIO::mmap/munmap support.
319 - add IO::AIO::m(un)lockall support.
320 - clean up manpage.
321
3223.5 Thu Jan 7 21:25:04 CET 2010
323 - (liebio) fix freebsd sendfile (Vanilla Hsu).
324 - (libeio) also fix darwin sendfile that suffered from a similar bug.
325 - add aio_statvfs as interface to statvfs/fstatvfs.
326 - work around buggy symlink() on cygwin in the testsuite.
327 - wtf. freebsd-8.0 actually passes the testsuite! I knew
328 they could implement fork and semaphores one day! cheers!
329
3303.4 Sat Jan 2 15:13:04 CET 2010
331 - (libeio) max_poll_time was not properly converted to ticks.
332 - clarify cancel_subs description.
333 - IO::AIO::sendfile did not actually return the return value
334 from the sendfile call.
335 - implement aio_msync, aio_mtouch.
336 - (libeio) tentatively support darwin in sendfile.
337
3383.31 Thu Nov 12 02:14:29 CET 2009
339 - fix result status documentation of aio_copy, aio_move.
340 - speed up object creation considerably by avoiding
341 hash lookups.
342
3433.3 Wed Aug 5 13:52:58 CEST 2009
344 - use common::sense.
345 - use common schmorp.h header.
346 - allow integers (file descriptors) in addition to file handles.
347 - take advantage of linux' eventfd (but it seems slower on smp?).
348 - use poll not select on posix platforms.
349
3503.261 Wed Jul 1 10:11:51 CEST 2009
351 - more 0S X workarounds (patch by Tokuhiro Matsuno).
352
3533.26 Tue Jun 30 09:33:26 CEST 2009
354 - 0S X of course claims to be posix 2008 but lacks posix_fadvise.
355 try to work around this horribly broken OS in a somewhat hackish
356 way. might help other os's too.
357
3583.25 Sat Jun 27 05:18:26 CEST 2009
359 - added IO::AIO::fadvise and IO::AIO::sendfile.
360 - (libeio) replaced quicksort+insertion sort by a tuned radix
361 sort + insertion sort, resulting in comparable runtime (usually
362 faster) to the old version, but without any ill side effects on
363 degenerated (for quicksort) data.
364 - (libeio) correctly sort dirs by inodes if we have perfect type
365 knowledge and DIRS_FIRST is used.
366 - (libeio) internally the wrong DT_* constants were used, but no
367 known system has differing EIO_DT_*/DT_* values, so not an issue.
368 - removed a (harmless) assert that was left over on the code
369 but should not have been.
370 - use more correct types (change IO length from IV to VAL64,
371 which makes a difference on systems without 64 bit perls).
372
3733.23 Sat Jun 13 16:57:58 CEST 2009
374 - fix off-by-one bug in aio_readdir that was introduced in the
375 rushed 3.22 release.
376
3773.22 Sat Jun 13 15:32:40 CEST 2009
378 - speed up readdirx sort algorithm slightly.
379 - bin/treescan was missing from distro tarball.
380
3813.21 Fri Jun 12 18:45:53 CEST 2009
382 - new options --dirs and --files for treescan.
383 - install bin/treescan by default.
384 - (libeio) aio_readdir can now be cancelled while executing.
385 - fix a printf format string for 64 bit systems (could lead
386 to problems on big endian 64 bit systems).
387 - do not use qsort() but our own algorithm: glibc initialises
388 the whole locale and I/O subsystem inside qsort, causing
389 a stack overflow on 32 bit machines. The new sort uses much less
390 stack and is more than twice as fast in typical situations.
391
3923.2 Sun Jun 7 20:30:05 CEST 2009
393 - (libeio) pwrite emulation was even more flawed than intended and did
394 not restore the file offset.
395 - add aio_readdirx, which can return inode and filetype and sort
396 the names in various ways.
397 - unfortunately, utime, chmod, chown on an open file that has just
398 been written can easily block, which caused aio_copy to block the
399 process. no more!
400 - no longer rely on dst path in aio_copy when futime is available.
401
4023.19 Tue Apr 21 22:05:21 CEST 2009
403 - more perl 5.10 workarounds for aio_read and write.
404 - aio_write no longer modifies the sv (if possible).
405 - aio_read now works correctly with magic values.
406
4073.18 Sun Apr 19 21:17:32 CEST 2009
408 - better diagnostics when some aio_* functions get passed an illegal fh.
409 - try to avoid crashes due to incompatible 5.10 API changes. grmbl.
410
4113.17 Thu Nov 20 08:45:36 CET 2008
412 - (libeio) added aio_sync_file_range (untested).
413 - add aio_busy to @IO::AIO::AIO_REQ.
414
4153.16 Wed Oct 22 18:28:01 CEST 2008
416 - use SvREFCNT_inc instead of SvREFCNT_inc_NN in a non-speed critical
417 part to improve portability to perl 5.8 (reported by szymon).
418
4193.15 Mon Oct 13 00:39:55 CEST 2008
420 - automatic removal of feeders was broken.
421 - (libeio) use a more robust method to detect whether a feeder
422 has added something to the group or not.
423
4243.1 Thu Oct 2 13:34:40 CEST 2008
425 - pre-deref the passed callback object, for increased speed
426 and decreased memory usage.
427 - call on_next_submit callback even for aio_group - impact unknown,
428 but seems more correct.
429 - $req->cb now returns the original callback.
430 - (libeio) pass EIO_GROUP/aio_group requests through the queue without
431 requiring a thread switch.
432 - (libeio) status code of aio_futime and aio_utime was always passed 0.
433 - do some other ยต-optimisations.
434
4353.07 Sat Aug 2 16:06:13 CEST 2008
436 - do not include LIBS in autoconf tests.
437
4383.06 Tue Jul 15 12:41:32 CEST 2008
439 - move preadwritelock definition before it's first reference,
440 to make it compile again on broken platforms (they still exist)
441 or badly cofngiured perls (redhat...), reported by Rob Bloodgood.
442
4433.05 Thu Jun 19 23:23:52 CEST 2008
444 - work around perl overriding readdir etc. with thread-unsafe
445 (sic!) versions.
446
4473.04 Wed Jun 18 01:35:38 CEST 2008
448 - (libeio) fix eio_mknod, which confused it's arguments.
449 - (libeio) do not use readdir_r, as Ulrich Drepper pointed out that this
450 is stupid.
451 - (libeio) fix eio__readahead prototype, patch by Jost Krieger.
452 - (libeio) fix a bug that could potentially cause IO::AIO
453 not to get initialised properly.
454
4553.03 Thu May 29 05:33:30 CEST 2008
456 - (libeio) correctly call pthread_attr_destroy ().
457 - (libeio) work around broken bsd headers once more.
458 - reduce shared library size again by not including wrappers.
459 - max_outstanding could cause poll to enter a busy-waiting loop.
460 - document the new IO::AIO::poll_cb result value.
461
4623.02 Mon May 12 02:32:02 CEST 2008
463 - fix a memory leak on aio_readlink.
464 - bring back working fchmod.
465 - nop and busy now set result to 0.
466 - set errno to ENOMEM when allocation fails.
467
4683.01 Sun May 11 03:07:03 CEST 2008
469 - (libeio) make it compile on systems without readahead or readdir_r.
470 - (libeio) improve configure check for readahead availability.
471 - do not try to link against -lrt.
472 - use a separate configure script for IO::AIO (not the libeio one).
473
4743.0 Sun May 11 00:57:14 CEST 2008
475 - added bin/treescan to the distribution.
476 - switched to using libeio.
477 - LOTS OF INCOMPATIBLE CHANGES:
478 - remove signal functionality, it is not worth the effort.
479 - max_outstanding no longer returns the previous number of requests.
480 - poll_cb no longer returns number of requests.
481
4822.62 Sat Apr 26 13:59:33 CEST 2008
483 - port to solaris perls configured for old posix
484 (analysed by Jost Krieger).
485 - keep a reference to the perl filehandle object in aio_close,
486 so it doesn't get closed prematurely, leading to ugly races.
487
4882.61 Wed Apr 16 18:45:02 CEST 2008
489 - fix treescan output duplication and improve output ordering.
490 also display files given on the commandline.
491 - use a different algorithm for aio_close that is faster
492 and probably has even lower chances of blocking.
493 - do our own stack memory management for threads - linux
494 allocates outrageous amounts of VM (not so bad unless you
495 use mlockall...), which severely limits the number of threads
496 on 32-bit arches: stack size is the larger of PTHREAD_STACK_MIN
497 and 4096 * sizeof (long) (usually this is 16..64k).
498
4992.6 Sun Mar 30 08:28:11 CEST 2008
500 - added aio_sync.
501 - added aio_pathsync.
502 - fix prototypes of (void) functions.
503
5042.51 Sat Oct 6 16:04:54 CEST 2007
505 - perlio isn't generally threadsafe, so aio_close could not work reliably.
506 aio_close now tries a safe hack that might not be that asynchronous
507 (see the manpage for details).
508 - discard callback return values as to not grow the stack endlessly
509 when poll_cb handles many requests without returning.
510 - minor code cleanups.
511
5122.5 Thu Oct 4 14:49:08 CEST 2007
513 - replaced _fd2fh with faster xs code.
514 - aio_close will now try to do "the right thing" and thus might
515 work sensibly for the very first time.
516
5172.41 Mon Sep 24 21:28:21 CEST 2007
518 - after fork, invest some work to make sure that the poll_fileno
519 stays stable (by dup2'ing the new fd over the old one), to make
520 it easier for programs/libs that don't control their forking
521 behaviour and cannot recreate their watchers.
522
5232.4 Sun Aug 5 18:44:22 CEST 2007
524 - add aio_truncate, aio_chmod, aio_chown, aio_utime (linux
525 successfully demonstrated that you can block on futimes...).
526 - allow undef as fileoffset for aio_read/write and use read/write(2)
527 internally (useful for sockets or O_APPEND handles).
528 - allow undef for length in aio_write.
529 - negative dataoffsets work as expected now in aio_read/aio_write.
530 - use NV instead of UV for 32 bit perls and file offsets, as NVs
531 have a larger range then.
532 - shared code between BDB and IO::AIO.
533 - aio_busy was completely broken. now fixed.
534 - readahead emulation now returns something.
535 - correctly set errno to ENOSYS on unimplemented functions
536 (should never happen, though).
537 - large changes to make it partially compile and run on win32,
538 but win32 lacks too much functionality, and perl overrides way
539 too many functions with crashing versions.
540
5412.33 Tue Jan 23 23:55:41 CET 2007
542 - fix install path (Andreas J. Koenig).
543
5442.32 Mon Jan 22 16:56:23 CET 2007
545 - added aio_rmtree.
546 - wow, aio_mkdir was missing.
547 - aio_load did return undef on error, not -1.
548 - use prefixexp not prefix in autoconf.pm
549 (suggested by ... rt.cpan.org unreachable).
550 - avoid installing autoconf.pm.
551
5522.31 Sat Jan 6 03:46:02 CET 2007
553 - added aio_load.
554
5552.3 Sat Dec 23 05:48:07 CET 2006
556 - fix off-by-one bug in aio_read, causing memory corruption
557 or crashes.
558
5592.21 Fri Dec 22 05:03:38 CET 2006
560 - minor doc updates.
561 - minor cleanups.
562 - IO::AIO::poll returns request count.
563 - undocumented and unfinished async-signal-reporting.
564
5652.2 Tue Oct 31 00:31:00 CET 2006
566 - minor doc updates.
567 - added aio_readlink.
568 - properly zero-terminate aio_read buffer.
569 - fix aio_read/write with nonzero dataoffset.
570 - reduced size of aio request structure.
571 - better diagnostics when pathnames etc. are not byte-encoded;
572 do not leak request in that case, either.
573
5742.1 Sun Oct 29 02:01:57 CET 2006
575 - INCOMPATIBLE CHANGE: replace IO::AIO::poll_some by
576 IO::AIO::max_poll_reqs and IO::AIO::max_poll_time.
577 - fix a bug in aio_move where it would fail everytime
578 it would have to copy files manually.
579 - doc updates.
580 - start threads only on (very low) demand.
581 - end superfluous threads automatically after 10s idling.
582 - add IO::AIO::max_idle to control this.
583 - some tuning applied to random places.
584 - add aio_mknod.
585
5862.0 Thu Oct 26 18:27:58 CEST 2006
587 - minor incompatibility: max_outstanding semantics have changed.
588 - major rewrite, consider all functionality EXPERIMENTAL.
7 - aio requests can be cancelled. 589 - aio requests can be cancelled.
590 - callbacks can be (re-)set later.
591 - aio requests can choose between 9 priorities.
8 - add aio_group: aio requests can be grouped. 592 - add aio_group: aio requests can be grouped
593 into composite requests.
9 - implement generator interface for groups. 594 - generator interface for groups.
10 - add aio_sleep mainly for benchmarking and debugging. 595 - add IO::AIO::poll_some.
11 - major documentation improvements. 596 - major documentation improvements.
12 - very minor bugfixes. 597 - very minor bugfixes.
598 - add aio_nop for dummy requests.
599 - add aio_busy mainly for benchmarking and debugging.
600 - use "fast" mutexes on linux.
601 - use dynamic (and larger) buffers instead of
602 putting them onto the stack.
603 - optimise x86 and amd64 a bit.
604 - better error checking when ENOMEM.
605 - hopefully fix mem and dirp leaks on fork.
606 - warn about broken perl malloc.
607 - compiles on cygwin (but pread is broken on cygwin
608 which is not detected by autoconf, so you have to
609 edit autoconf/config.h yourself to enable emulation).
13 610
141.8 Sat Jun 24 22:20:44 CEST 2006 6111.8 Sat Jun 24 22:20:44 CEST 2006
15 - add and/or document aio_rename, aio_link, aio_symlink and aio_move. 612 - add and/or document aio_rename, aio_link, aio_symlink and aio_move.
16 613
171.73 Wed Mar 1 22:49:32 CET 2006 6141.73 Wed Mar 1 22:49:32 CET 2006
… …
51 - somebody nagged about C89 compatibility, so this release should 648 - somebody nagged about C89 compatibility, so this release should
52 be C89 compatible, but no guarantees for future ones. 649 be C89 compatible, but no guarantees for future ones.
53 - abort when the configure script fails. 650 - abort when the configure script fails.
54 651
551.4 Wed Aug 17 08:07:27 CEST 2005 6521.4 Wed Aug 17 08:07:27 CEST 2005
56 - forget to recreate the pipe after forking, this could cause 653 - forgot to recreate the pipe after forking, this could cause
57 deadlocks. 654 deadlocks.
58 655
591.3 Wed Aug 17 07:25:54 CEST 2005 6561.3 Wed Aug 17 07:25:54 CEST 2005
60 - properly propagate exceptions from callbacks, instead of silently 657 - properly propagate exceptions from callbacks, instead of silently
61 eating them. 658 eating them.

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