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Comparing IO-AIO/Changes (file contents):
Revision 1.33 by root, Wed Aug 17 03:01:56 2005 UTC vs.
Revision 1.377 by root, Fri Dec 28 12:43:00 2018 UTC

1Revision history for IO::AIO 1Revision history for IO::AIO
2 2
31.3 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: copy_file_range, copy_file_range
29TODO: FIDEDUPERANGE, file_ioctl.c
30TODO: mincore
31TODO: SOCK_CLOEXEc etc.
32TODO: unlinkat flags, linkat flags, statat, renameat2 flags
33TODO: https://kernelnewbies.org/Linux_4.11
34TODO: define useful rules for [[$wd, $path], $path] &c and implement them
35TODO: https://github.com/coreutils/coreutils/blob/master/src/stat.c maybe IO::AIO::FSID
36TODO: mlock2, MLOCK_ONFAULT
37TODO: dup3, pipe2, accept4
38TODO: dump config.log when automated testign and configure fails
39TODO: ns time resolution in utime
40
41 - majorly speed up scandir for the very special case of a non-POSIX
42 filesystem that nevertheless reports valid dt_type information.
43 The only known filesystem of this type is currently btrfs, which
44 didn't get it's act together to implement POSIX semantics in all
45 these years, and I am tired of waiting.
46 - use a different strategy in aio_close that results in a real close
47 when used on perl filehandles, but rely onn dup2 for everything
48 else.
49 - add IO::AIO::MCL_ONFAULT for mlockall, add IO::AIO::mlockall.
50 - neither sys/mkdev.h nor sys/sysmacros.h were included, even when they
51 were detected by autoconf.
52
534.6 Sat Aug 25 21:58:36 CEST 2018
54 - add st_btime, st_btimesec, st_btimensec and st_gen accessors,
55 mostly for bsds which expose birthtime and st_gen members (netbsd, freebsd
56 but only st_gen on openbsd because they compiled their perl without support
57 for birthtimes).
58 - fix madvise and munlock to properly support negative offsets.
59 - allocate fd for the aio_close at boot time, to guarantee it working
60 later, rather than calling abort when it fails. also avoids
61 close-on-exec race issues after module load.
62 - #undef utime on win32, maybe this helps some reports of utime hangs.
63 - minor doc improvements.
64 - minor configure cleanups.
65 - use $Config{perllibs} instead of libs for configure. might help people
66 who didn'T install all perl dependencies (might break things as well).
67
684.54 Tue Aug 14 13:54:48 CEST 2018
69 - include sys/mkdev.h or sys/sysmacros.h if available.
70 - further tweaks to configure invocation for systems requiring --rpath.
71 - no longer rely on custom paths on win32 platforms.
72 - try to work around buggy PAGESIZE macro on solaris.
73
744.53 Tue Aug 14 11:27:50 CEST 2018
75 - add $Config{libs} to LIBS for configure, to work around systems
76 with broken library dependencies (... openbsd).
77
784.52 Sun Aug 12 08:09:45 CEST 2018
79 - config.h.in was missing in distribution.
80
814.51 Sun Aug 12 07:24:14 CEST 2018
82 - complete rework of the autoconf framework: IO::AIO now uses its own
83 config.h, separate from libeio, and tries to test the actual perl
84 environment, not the standard system environment.
85 - provide nanosecond-accracy stat time accessors for both perl and IO::AIO
86 stat functions.
87 - removed non-portable C++ syntax from eio.c.
88 - try to fix readdir tests on cygwin spuriously failing.
89
904.5 Wed Aug 1 00:23:55 CEST 2018
91 - aio_mtouch touch all pages as requested, not just the first page in most cases.
92 - new function: IO::AIO::mremap, linux-specific mremap, with constants MREMAP_MAYMOVE
93 and MREMAP_FIXED.
94 - add O_ACCMODE.
95 - add (undocumented) MSG_CMSG_CLOEXEC and SOCK_CLOEXEC constants.
96
974.4 Tue Feb 20 07:54:12 CET 2018
98 - new aio_slurp request.
99 - add (experimental) IO::AIO::eventfd and timerfd* function.
100 - add (experimental) IO::AIO::get_fdlimit and IO::AIO::min_fdlimit.
101 - point out that aio_copy overwrites existing files.
102 - removed filesystem magic number table from aio_statvfs docs as
103 statvfs doesn't actually return this info at all (statfs does).
104 - add a bunch of (mostly linux-specific) constants for use in ioctls
105 (see aio_ioctl docs).
106 - treescan now has a proper manpage and useful --help output.
107 - new option --sync in treescan, to sync everything in a subtree.
108 - changed default for aio_msync flags to MSYNC_SYNC.
109 - document offset/length behaviour of mprotect/madvise.
110 - support linux's renameat2 (via aio_rename2).
111 - add aio_rename2, an aio_rename with flags.
112 - add F_DUPPFD_CLOEXEC, F_OFD_[SG]ETLKW? constants.
113 - add FALLOC_FL_INSERT_RANGE, FALLOC_FL_UNSHARE_RANGE.
114 - (libeio) use posix_close if available.
115 - (libeio) internal close() calls no longer disturb errno.
116 - add IO:AIO::FALLOC_FL_UNSHARE.
117 - update schmorp.h for removal of USE_SOCKETS_AS_HANDLES
118 and better eventfd detection.
119
1204.34 Sun May 1 19:18:24 CEST 2016
121 - def0.h was not properly generated during previous release, causing
122 compile errors on various platforms.
123 - major/minor were accidentally switched (reported by Alexander Lishenyuk).
124 - removed duplicate definition of MAP_HUGETLB, that was found due to
125 a bug in Perl::Tidy (testcase by alaska332@gmail.com).
126 - added (untested!) aio_fcntl, aio_ioctl requests.
127 - (libeio) names set via prctl are truncated to 15 chars + nul, not 16,
128 as manpages-dev originally claimed.
129
1304.33 Mon Jan 18 12:50:10 CET 2016
131 - add IO::AIO::pipe2 function.
132 - added support for FALLOC_FL_COLLAPSE_RANGE and FALLOC_FL_ZERO_RANGE
133 constants.
134 - added support for O_TMPFILE and O_PATH constants.
135 - added support for MAP_FIXED, MAP_GROWSDOWN,MAP_32BIT, MAP_HUGETLB, MAP_STACK
136 consdtants, whether they can be sensibly used or not.
137 - use NO_INIT where applicable.
138 - update libecb.
139 - added stability canary support.
140 - updated linux super magic table to 4.3.3.
141
1424.32 Wed Feb 11 20:32:11 CET 2015
143 - replace off_t by STRLEN where appropriate, should not result in
144 user-visible changes.
145 - update ecb.h for C11 compatibility.
146
1474.31 Tue Jun 3 03:29:27 CEST 2014
148 - work around more 5.20 bugs. backwards compatibility my ass.
149
1504.3 Fri Apr 11 06:22:38 CEST 2014
151 - perl5porters broke Async::Interrupt, BDB, EV, IO::AIO, OpenCL
152 without warning by switching the meaning of USE_SOCKETS_AS_HANDLES
153 in 5.18. What's so attractive about giving a shit about backwards
154 compatibility - I will never understand.
155
1564.2 Sat Jan 25 01:13:14 CET 2014
157 - aio_group could corrupt memory because it didn't restore
158 the stack after req_submit.
159 - be more careful on (e.g. permission) errors in bin/treescan.
160 - work around changes in ExtUtils::MakeMaker.
161 - (libeio) implement aio_realpath for win32.
162 - (xthread) work around compile time bugs in ptw32.
163 - added IO::AIO::pipesize.
164 - (libecb) insignificant update.
165
1664.19 Sun Jan 6 12:47:26 CET 2013
167 - avoid endless loop in fiemap with some XFS files.
168 - in aio_rename and aio_rmdir, specialcase the case of [$wd, "."]
169 and call rename/rmdir instead of renameat/unlinkat.
170
1714.18 Thu Oct 11 07:01:26 CEST 2012
172 - fix unintended xthread_create by intentionalising it :)
173
1744.17 Thu Oct 11 05:19:47 CEST 2012
175 - rename aio_fallocate to aio_allocate, to match documentation.
176 - add list of linux fsid values to aio_statvfs docs.
177 - work around a bug in btrfs' FIEMAP ioctl implementation.
178 - work around AIX bug: statvfs.f_fsid is a struct, not unsigned long
179 as per unix spec.
180
1814.16 Tue Aug 14 05:39:03 CEST 2012
182 - aio_statvfs was wromgly marked for wd emulation, causing
183 it to malfunction for paths.
184 - fix a crash in aio_fiemap, when used on ranges without any
185 extents.
186 - work around linux kernel bug (at least in 3.2): kernel might
187 trash fiemap input arguments.
188 - work around linux kernel bug (at least in 3.2): kernel does not
189 set FIEMAP_EXTENT_LAST on last segment.
190 - work around linux kernel bug (at least in 3.2): kernel silently
191 truncates segment count if a file.
192 - make fh argument of IO::AIO::mmap optional, also add mmap/munmap
193 to quick overview.
194 - splice can corrupt data.
195 - (libeio) remove pread/pwrite emulation.
196 - do not grow mmaped scalars in aio_read.
197 - add FALLOC_FL_PUNCH_HOLE and document fallocate.
198 - provide pread/pwrite for win32, making it link again on native win32.
199
2004.15 Tue Apr 10 06:59:00 CEST 2012
201 - always include linux/types.h for fiemap, for compatibility to
202 ancient systems (Paul Howarth).
203 - experimental support for IO::AIO::splice and ::tee (no aio_...).
204 - provide SEEK_HOLE and SEEK_DATA, if available.
205 - work around (again!) an immensely stupid bug in RHEL, defining
206 autoconf macros in linux system headers (analysed by Paul Howarth).
207
2084.14 Sat Apr 7 02:45:18 CEST 2012
209 - fix stat structure usage on windows, which caused bogus stat results.
210 - (libeio) make readahead emulation behave more like actual readahead by never failing.
211 - new request aio_seek.
212 - new request aio_fiemap.
213 - autogenerate the #ifdef/#define 0 blocks for symbols we export.
214
2154.12 Fri Dec 30 08:51:25 CET 2011
216 - realpath would return a random value if the name was too long,
217 instead of -1.
218 - port to c89.
219
2204.11 Mon Oct 10 00:24:11 CEST 2011
221 - libeio didn't compile on !linux (Paul Howarth).
222
2234.1 Sun Oct 9 10:24:11 CEST 2011
224 - IO::AIO did access uninitialised memory on unsuccessful stats.
225 - (libeio) added syncfs syscall wrapper.
226 - (libeio) set thread name on linux (ps -L/Hcx, top, gdb).
227 - (libeio) support multiple indepenent working directories.
228 - applied speling corrections by Nicholas Bamber.
229 - tune treescan #threads and #outstanding requests a bit.
230 - reduce the number of file descriptors in use at any one time
231 in treescan, to avoid running out of them (and using too much ram).
232 - take advantage of working directoriy abstractions
233 in aio_scandir and treescan.
234 - reduce compiled size by ~10% by not inlining some key functionality.
235 - added --progress switch to treescan.
236
2374.0 Mon Jul 18 05:01:10 CEST 2011
238 - INCOMPATIBLE CHANGE: fork is no longer supported (indeed, it never was),
239 see FORK BEHAVIOUR in manpage for details.
240 - passes testsuite on win32 now and may actually work
241 (activestate 5.10.1 / MSVC6, YMMV).
242 - (libeio) fix a deadlock where a wakeup signal could be missed when
243 a timeout occured at the same time.
244 - (libeio) added realpath.
245 - (libeio) added fallocate.
246 - (libeio) disabling sendfile on darwin unfortunately broke the emulation.
247 - (libeio) do not acquire any locks when forking.
248 - (libeio) use fewer time() syscalls when waiting for new requests.
249
2503.93 Wed Jun 29 23:44:18 CEST 2011
251 - ECB.H WAS MISSING.
252
2533.92 Wed Jun 29 14:45:41 CEST 2011
254 - ecb.h was missing.
255
2563.91 Wed Jun 29 13:24:42 CEST 2011
257 - (libeio) work around a Linux (and likely FreeBSD and other
258 kernels) bug where sendfile would not transfer all the requested
259 bytes on large transfers, using a heuristic.
260 - buggy sendfile caused aio_move/copy to sometimes fail for big
261 files (fortunately it checks that the whole file has been
262 transferred...)
263 - use libecb for higher performance and higher portability.
264 - (libeio) disable sendfile on darwin, it's too broken.
265 - disable fork tests on !linux, as only linux supports mixing
266 pthread and fork in perl.
267 - document the fact that fork doesn't work anymore when using
268 this module, on anything !GNU/Linux.
269 - increase timeout in t/04_fork.t, as too many CPAN-tester setups
270 run on a 0.1MHz cpu. Or so.
271
2723.9 Fri May 27 02:43:47 CEST 2011
273 - (libeio) fix memory corruption in aio_readdirx for the flags
274 combination READDIR_STAT_ORDER | READDIR_DIRS_FIRST.
275 - add lots of newer POSIX and GNU/Linux-specific open
276 flags.
277
2783.8 Sun Mar 27 12:25:33 CEST 2011
279 - use nonstandard but maybe-working-on-bsd fork technique.
280 - support a max_idle value of 0.
281 - support setting of idle timeout value (IO::AIO::idle_timeout).
282
2833.72 Fri Feb 11 04:25:38 CET 2011
284 - use _POSIX_MEMLOCK_RANGE to detect mlock/munlock.
285 - aio_mknod always used a dev_t value of 0.
286 - new treescan option: --grep.
287 - add more S_IF macros, and major/minor/makedev "macros".
288
2893.71 Thu Dec 30 08:18:46 CET 2010
290 - the numerical result value passed to callbacks did not stringify
291 correctly, due to internal reuse and failure to reset the sv flags.
292 - actually test for posix_[mf]advise, as at least uClibc defines
293 _POSIX_ADVISORY_INFO without actually having any of the required
294 funcitonality. ugh.
295
2963.7 Mon Nov 1 23:00:34 CET 2010
297 - implement/add madvise, mmap, munmap, aio_mlockall, munlockall,
298 aio_mlock, munlock, msync and mtouch to @EXPORT_OK.
299 - document the sad state of affairs w.r.t. pthread on many bsds.
300 - do not enable mmap on systems without _POSIX_MAPPED_FILES
301 (openbsd 4.8).
302 - do not leak memory in IO::AIO::mmap when the scalar already
303 had string-data.
304 - add O_RDWR, O_APPEND and O_EXCL symbols and semi-document
305 them.
306 - cache the result IV, for a minor speedup in the common case.
307 - croak when an mmapped-scalar changes location, to detect
308 user-errors better.
309 - fix aio_readlink prototype.
310
3113.65 Wed Mar 31 02:45:05 CEST 2010
312 - actually use PATH_MAX instead of NAME_MAX for readlink, as to not
313 cut off long pathnames in aio_readlink (based on patch by
314 Rasmus Andersson).
315 - a double fork partially killed the event pipe (great testcase
316 by dormando). affects IO::AIO, BDB and Async::Interrupt.
317 - suck steve's dick and rename our symbols to avoid colliding
318 with nonstandard identifier spam on the broken os x pseudo-os.
319 affects IO::AIO and BDB.
320
3213.6 Mon Jan 11 00:43:39 CET 2010
322 - (libeio) more fixes for the freebsd/apple sendfile - broken by
323 manpage standards, but apparently correct accoridng to actual
324 kernel sources.
325 - add IO::AIO::mmap/munmap support.
326 - add IO::AIO::m(un)lockall support.
327 - clean up manpage.
328
3293.5 Thu Jan 7 21:25:04 CET 2010
330 - (liebio) fix freebsd sendfile (Vanilla Hsu).
331 - (libeio) also fix darwin sendfile that suffered from a similar bug.
332 - add aio_statvfs as interface to statvfs/fstatvfs.
333 - work around buggy symlink() on cygwin in the testsuite.
334 - wtf. freebsd-8.0 actually passes the testsuite! I knew
335 they could implement fork and semaphores one day! cheers!
336
3373.4 Sat Jan 2 15:13:04 CET 2010
338 - (libeio) max_poll_time was not properly converted to ticks.
339 - clarify cancel_subs description.
340 - IO::AIO::sendfile did not actually return the return value
341 from the sendfile call.
342 - implement aio_msync, aio_mtouch.
343 - (libeio) tentatively support darwin in sendfile.
344
3453.31 Thu Nov 12 02:14:29 CET 2009
346 - fix result status documentation of aio_copy, aio_move.
347 - speed up object creation considerably by avoiding
348 hash lookups.
349
3503.3 Wed Aug 5 13:52:58 CEST 2009
351 - use common::sense.
352 - use common schmorp.h header.
353 - allow integers (file descriptors) in addition to file handles.
354 - take advantage of linux' eventfd (but it seems slower on smp?).
355 - use poll not select on posix platforms.
356
3573.261 Wed Jul 1 10:11:51 CEST 2009
358 - more 0S X workarounds (patch by Tokuhiro Matsuno).
359
3603.26 Tue Jun 30 09:33:26 CEST 2009
361 - 0S X of course claims to be posix 2008 but lacks posix_fadvise.
362 try to work around this horribly broken OS in a somewhat hackish
363 way. might help other os's too.
364
3653.25 Sat Jun 27 05:18:26 CEST 2009
366 - added IO::AIO::fadvise and IO::AIO::sendfile.
367 - (libeio) replaced quicksort+insertion sort by a tuned radix
368 sort + insertion sort, resulting in comparable runtime (usually
369 faster) to the old version, but without any ill side effects on
370 degenerated (for quicksort) data.
371 - (libeio) correctly sort dirs by inodes if we have perfect type
372 knowledge and DIRS_FIRST is used.
373 - (libeio) internally the wrong DT_* constants were used, but no
374 known system has differing EIO_DT_*/DT_* values, so not an issue.
375 - removed a (harmless) assert that was left over on the code
376 but should not have been.
377 - use more correct types (change IO length from IV to VAL64,
378 which makes a difference on systems without 64 bit perls).
379
3803.23 Sat Jun 13 16:57:58 CEST 2009
381 - fix off-by-one bug in aio_readdir that was introduced in the
382 rushed 3.22 release.
383
3843.22 Sat Jun 13 15:32:40 CEST 2009
385 - speed up readdirx sort algorithm slightly.
386 - bin/treescan was missing from distro tarball.
387
3883.21 Fri Jun 12 18:45:53 CEST 2009
389 - new options --dirs and --files for treescan.
390 - install bin/treescan by default.
391 - (libeio) aio_readdir can now be cancelled while executing.
392 - fix a printf format string for 64 bit systems (could lead
393 to problems on big endian 64 bit systems).
394 - do not use qsort() but our own algorithm: glibc initialises
395 the whole locale and I/O subsystem inside qsort, causing
396 a stack overflow on 32 bit machines. The new sort uses much less
397 stack and is more than twice as fast in typical situations.
398
3993.2 Sun Jun 7 20:30:05 CEST 2009
400 - (libeio) pwrite emulation was even more flawed than intended and did
401 not restore the file offset.
402 - add aio_readdirx, which can return inode and filetype and sort
403 the names in various ways.
404 - unfortunately, utime, chmod, chown on an open file that has just
405 been written can easily block, which caused aio_copy to block the
406 process. no more!
407 - no longer rely on dst path in aio_copy when futime is available.
408
4093.19 Tue Apr 21 22:05:21 CEST 2009
410 - more perl 5.10 workarounds for aio_read and write.
411 - aio_write no longer modifies the sv (if possible).
412 - aio_read now works correctly with magic values.
413
4143.18 Sun Apr 19 21:17:32 CEST 2009
415 - better diagnostics when some aio_* functions get passed an illegal fh.
416 - try to avoid crashes due to incompatible 5.10 API changes. grmbl.
417
4183.17 Thu Nov 20 08:45:36 CET 2008
419 - (libeio) added aio_sync_file_range (untested).
420 - add aio_busy to @IO::AIO::AIO_REQ.
421
4223.16 Wed Oct 22 18:28:01 CEST 2008
423 - use SvREFCNT_inc instead of SvREFCNT_inc_NN in a non-speed critical
424 part to improve portability to perl 5.8 (reported by szymon).
425
4263.15 Mon Oct 13 00:39:55 CEST 2008
427 - automatic removal of feeders was broken.
428 - (libeio) use a more robust method to detect whether a feeder
429 has added something to the group or not.
430
4313.1 Thu Oct 2 13:34:40 CEST 2008
432 - pre-deref the passed callback object, for increased speed
433 and decreased memory usage.
434 - call on_next_submit callback even for aio_group - impact unknown,
435 but seems more correct.
436 - $req->cb now returns the original callback.
437 - (libeio) pass EIO_GROUP/aio_group requests through the queue without
438 requiring a thread switch.
439 - (libeio) status code of aio_futime and aio_utime was always passed 0.
440 - do some other ยต-optimisations.
441
4423.07 Sat Aug 2 16:06:13 CEST 2008
443 - do not include LIBS in autoconf tests.
444
4453.06 Tue Jul 15 12:41:32 CEST 2008
446 - move preadwritelock definition before it's first reference,
447 to make it compile again on broken platforms (they still exist)
448 or badly cofngiured perls (redhat...), reported by Rob Bloodgood.
449
4503.05 Thu Jun 19 23:23:52 CEST 2008
451 - work around perl overriding readdir etc. with thread-unsafe
452 (sic!) versions.
453
4543.04 Wed Jun 18 01:35:38 CEST 2008
455 - (libeio) fix eio_mknod, which confused it's arguments.
456 - (libeio) do not use readdir_r, as Ulrich Drepper pointed out that this
457 is stupid.
458 - (libeio) fix eio__readahead prototype, patch by Jost Krieger.
459 - (libeio) fix a bug that could potentially cause IO::AIO
460 not to get initialised properly.
461
4623.03 Thu May 29 05:33:30 CEST 2008
463 - (libeio) correctly call pthread_attr_destroy ().
464 - (libeio) work around broken bsd headers once more.
465 - reduce shared library size again by not including wrappers.
466 - max_outstanding could cause poll to enter a busy-waiting loop.
467 - document the new IO::AIO::poll_cb result value.
468
4693.02 Mon May 12 02:32:02 CEST 2008
470 - fix a memory leak on aio_readlink.
471 - bring back working fchmod.
472 - nop and busy now set result to 0.
473 - set errno to ENOMEM when allocation fails.
474
4753.01 Sun May 11 03:07:03 CEST 2008
476 - (libeio) make it compile on systems without readahead or readdir_r.
477 - (libeio) improve configure check for readahead availability.
478 - do not try to link against -lrt.
479 - use a separate configure script for IO::AIO (not the libeio one).
480
4813.0 Sun May 11 00:57:14 CEST 2008
482 - added bin/treescan to the distribution.
483 - switched to using libeio.
484 - LOTS OF INCOMPATIBLE CHANGES:
485 - remove signal functionality, it is not worth the effort.
486 - max_outstanding no longer returns the previous number of requests.
487 - poll_cb no longer returns number of requests.
488
4892.62 Sat Apr 26 13:59:33 CEST 2008
490 - port to solaris perls configured for old posix
491 (analysed by Jost Krieger).
492 - keep a reference to the perl filehandle object in aio_close,
493 so it doesn't get closed prematurely, leading to ugly races.
494
4952.61 Wed Apr 16 18:45:02 CEST 2008
496 - fix treescan output duplication and improve output ordering.
497 also display files given on the commandline.
498 - use a different algorithm for aio_close that is faster
499 and probably has even lower chances of blocking.
500 - do our own stack memory management for threads - linux
501 allocates outrageous amounts of VM (not so bad unless you
502 use mlockall...), which severely limits the number of threads
503 on 32-bit arches: stack size is the larger of PTHREAD_STACK_MIN
504 and 4096 * sizeof (long) (usually this is 16..64k).
505
5062.6 Sun Mar 30 08:28:11 CEST 2008
507 - added aio_sync.
508 - added aio_pathsync.
509 - fix prototypes of (void) functions.
510
5112.51 Sat Oct 6 16:04:54 CEST 2007
512 - perlio isn't generally threadsafe, so aio_close could not work reliably.
513 aio_close now tries a safe hack that might not be that asynchronous
514 (see the manpage for details).
515 - discard callback return values as to not grow the stack endlessly
516 when poll_cb handles many requests without returning.
517 - minor code cleanups.
518
5192.5 Thu Oct 4 14:49:08 CEST 2007
520 - replaced _fd2fh with faster xs code.
521 - aio_close will now try to do "the right thing" and thus might
522 work sensibly for the very first time.
523
5242.41 Mon Sep 24 21:28:21 CEST 2007
525 - after fork, invest some work to make sure that the poll_fileno
526 stays stable (by dup2'ing the new fd over the old one), to make
527 it easier for programs/libs that don't control their forking
528 behaviour and cannot recreate their watchers.
529
5302.4 Sun Aug 5 18:44:22 CEST 2007
531 - add aio_truncate, aio_chmod, aio_chown, aio_utime (linux
532 successfully demonstrated that you can block on futimes...).
533 - allow undef as fileoffset for aio_read/write and use read/write(2)
534 internally (useful for sockets or O_APPEND handles).
535 - allow undef for length in aio_write.
536 - negative dataoffsets work as expected now in aio_read/aio_write.
537 - use NV instead of UV for 32 bit perls and file offsets, as NVs
538 have a larger range then.
539 - shared code between BDB and IO::AIO.
540 - aio_busy was completely broken. now fixed.
541 - readahead emulation now returns something.
542 - correctly set errno to ENOSYS on unimplemented functions
543 (should never happen, though).
544 - large changes to make it partially compile and run on win32,
545 but win32 lacks too much functionality, and perl overrides way
546 too many functions with crashing versions.
547
5482.33 Tue Jan 23 23:55:41 CET 2007
549 - fix install path (Andreas J. Koenig).
550
5512.32 Mon Jan 22 16:56:23 CET 2007
552 - added aio_rmtree.
553 - wow, aio_mkdir was missing.
554 - aio_load did return undef on error, not -1.
555 - use prefixexp not prefix in autoconf.pm
556 (suggested by ... rt.cpan.org unreachable).
557 - avoid installing autoconf.pm.
558
5592.31 Sat Jan 6 03:46:02 CET 2007
560 - added aio_load.
561
5622.3 Sat Dec 23 05:48:07 CET 2006
563 - fix off-by-one bug in aio_read, causing memory corruption
564 or crashes.
565
5662.21 Fri Dec 22 05:03:38 CET 2006
567 - minor doc updates.
568 - minor cleanups.
569 - IO::AIO::poll returns request count.
570 - undocumented and unfinished async-signal-reporting.
571
5722.2 Tue Oct 31 00:31:00 CET 2006
573 - minor doc updates.
574 - added aio_readlink.
575 - properly zero-terminate aio_read buffer.
576 - fix aio_read/write with nonzero dataoffset.
577 - reduced size of aio request structure.
578 - better diagnostics when pathnames etc. are not byte-encoded;
579 do not leak request in that case, either.
580
5812.1 Sun Oct 29 02:01:57 CET 2006
582 - INCOMPATIBLE CHANGE: replace IO::AIO::poll_some by
583 IO::AIO::max_poll_reqs and IO::AIO::max_poll_time.
584 - fix a bug in aio_move where it would fail everytime
585 it would have to copy files manually.
586 - doc updates.
587 - start threads only on (very low) demand.
588 - end superfluous threads automatically after 10s idling.
589 - add IO::AIO::max_idle to control this.
590 - some tuning applied to random places.
591 - add aio_mknod.
592
5932.0 Thu Oct 26 18:27:58 CEST 2006
594 - minor incompatibility: max_outstanding semantics have changed.
595 - major rewrite, consider all functionality EXPERIMENTAL.
596 - aio requests can be cancelled.
597 - callbacks can be (re-)set later.
598 - aio requests can choose between 9 priorities.
599 - add aio_group: aio requests can be grouped
600 into composite requests.
601 - generator interface for groups.
602 - add IO::AIO::poll_some.
603 - major documentation improvements.
604 - very minor bugfixes.
605 - add aio_nop for dummy requests.
606 - add aio_busy mainly for benchmarking and debugging.
607 - use "fast" mutexes on linux.
608 - use dynamic (and larger) buffers instead of
609 putting them onto the stack.
610 - optimise x86 and amd64 a bit.
611 - better error checking when ENOMEM.
612 - hopefully fix mem and dirp leaks on fork.
613 - warn about broken perl malloc.
614 - compiles on cygwin (but pread is broken on cygwin
615 which is not detected by autoconf, so you have to
616 edit autoconf/config.h yourself to enable emulation).
617
6181.8 Sat Jun 24 22:20:44 CEST 2006
619 - add and/or document aio_rename, aio_link, aio_symlink and aio_move.
620
6211.73 Wed Mar 1 22:49:32 CET 2006
622 - codename "jost"
623 - AIX/Solaris(?) aren't being helpful again, hardcode a value
624 for NAME_MAX and drive with your eyes closed (reported by
625 wcooley@nakedape.cc).
626
6271.72 Thu Feb 2 00:40:44 CET 2006
628 - another minor bug in aio_scandir, again, the callback was called
629 twice when the directory can't be stat'ed.
630
6311.71 Mon Dec 26 20:20:03 CET 2005
632 - grr, another minor bug in aio_scandir, this time resulting
633 in a runtime error.
634
6351.7 Mon Dec 26 19:29:48 CET 2005
636 - aio_scandir errornously called callback twice in some cases.
637 - added AnyEvent example.
638
6391.61 Wed Sep 7 19:40:42 CEST 2005
640 - no longer include $Config{libs}, as distros include too much
641 garbage in there that is not installed on typical systems
642 (for example, debian links perl against -lgdbm and many more
643 libraries despite perl not needing it, slowing down startup and
644 wasting memory).
645
6461.6 Tue Aug 30 17:44:44 CEST 2005
647 - added aio_readdir, aio_scandir.
648 - added aio_sendfile, including sendfile emulation when sendfile
649 isn't available. Linux, FreeBSD and HP-UX might work (sendfilev
650 support is unavailable on my solaris 8 machine, but preliminary
651 code is there. What's lacking is configury stuff and testing...).
652
6531.5 Sat Aug 20 02:32:19 CEST 2005
654 - create the aio threads on demand only (good after forking).
655 - somebody nagged about C89 compatibility, so this release should
656 be C89 compatible, but no guarantees for future ones.
657 - abort when the configure script fails.
658
6591.4 Wed Aug 17 08:07:27 CEST 2005
660 - forgot to recreate the pipe after forking, this could cause
661 deadlocks.
662
6631.3 Wed Aug 17 07:25:54 CEST 2005
4 - properly propagate exceptions from callbacks, instead of silently 664 - properly propagate exceptions from callbacks, instead of silently
5 eating them. 665 eating them.
666 - use a different fork algorithm that avoids recursive callback
667 invocations and reduces fork latency in busy processes.
668 - fix a bug where the buffer scalar in aio_read got assigned the wrong
669 length after reading.
670 - fix a bug where the child would process some outstanding requests
671 from the parent.
672 - make a copy of the callback scalar, to avoid some very uncommon
673 (but valid) usages where the callback scalar changes.
674 - the callback was never freed in aio_read/aio_write.
675 - aio_read/aio_write will now set the readonly flag on the data
676 scalar for better error reporting.
6 677
71.2 Wed Aug 17 01:22:58 CEST 2005 6781.2 Wed Aug 17 01:22:58 CEST 2005
8 - verified on cygwin, linux/amd64+ia32+alpha, solaris. 679 - verified on cygwin, linux/amd64+ia32+alpha, solaris.
9 - use SvPVbyte for filenames now. You *need* to encode your strings to 680 - use SvPVbyte for filenames now. You *need* to encode your strings to
10 the external filename encoding first. 681 the external filename encoding first.

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