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Comparing IO-AIO/Changes (file contents):
Revision 1.48 by root, Tue Aug 23 01:16:50 2005 UTC vs.
Revision 1.369 by root, Sat Aug 25 19:25:32 2018 UTC

1Revision history for IO::AIO 1Revision history for IO::AIO
2 2
3 - (experimental) sendfile support, including sendfile emulation 3TODO: scandir - some dirs mostly contain subdirs - invert logic?
4TODO: aio_cptree/mvtree
5TODO: vmsplice? (http://kerneltrap.org/node/6505 http://lwn.net/Articles/178199/)
6TODO: getxattr, setxattr, listxattr, removexattr etc.?
7TODO: emulation for splice?
8TODO: syncfs/sync windows:
9TODO: posix_fallocate when flags=0
10http://stackoverflow.com/questions/65170/how-to-get-name-associated-with-open-handle/5286888#5286888
11http://blogs.msdn.com/b/adioltean/archive/2005/04/16/408947.aspx
12http://msdn.microsoft.com/en-us/library/aa366789%28v=vs.85%29.aspx
13http://msdn.microsoft.com/en-us/library/windows/desktop/aa366789%28v=vs.85%29.aspx
14http://msdn.microsoft.com/en-us/library/windows/desktop/aa364425%28v=vs.85%29.aspx
15http://msdn.microsoft.com/en-us/library/windows/desktop/aa364963%28v=vs.85%29.aspx
16http://msdn.microsoft.com/en-us/library/windows/desktop/aa364996%28v=vs.85%29.aspx
17http://msdn.microsoft.com/en-us/library/windows/desktop/aa364994%28v=vs.85%29.aspx
18TODO: extra socket/tcp constants &c?
19TODO: http://lwn.net/Articles/593918/ SHMEM_SET_SEALS, SHMEM_GET_SEALS, SEAL_SHRINK, SEAL_GROW, SEAL_WRITE, int memfd_create(const char *name, u64 size, u64 flags);, MFD_CLOEXEC, int fd = open("/tmp", O_RDWR | O_TMPFILE | O_EXCL, S_IRWXU);
20TODO: name_to_handle_At + open_by_handle_at = clone fds
21TODO: lchown
22TODO: mount/umount2/MS_* flags
23
24TODO: rewrite rmtree et al. to support working directories (also speed them up)
25TODO: maybe IO::AIO leaks fds when requests are cancelled? maybe initialise result to -1?
26TODO: aio_wd should use O_PATH on linux, due to lacking O_SEARCH (http://comments.gmane.org/gmane.linux.file-systems/33611)
27 http://www.openwall.com/lists/musl/2013/02/23/4
28TODO: maybe copy some hacks from PerlIOStdio_invalidate_fileno for faster close on certain platforms
29TODO: copy_file_range, copy_file_range
30TODO: FIDEDUPERANGE, file_ioctl.c
31TODO: mincore
32TODO: SOCK_CLOEXEc etc.
33TODO: unlinkat flags, linkat flags, statat, renameat2 flags
34TODO: https://kernelnewbies.org/Linux_4.11
35TODO: define useful rules for [[$wd, $path], $path] &c and implement them
36TODO: https://github.com/coreutils/coreutils/blob/master/src/stat.c maybe IO::AIO::FSID
37TODO: mlock2, MLOCK_ONFAULT
38TODO: dup3, pipe2, accept4
39TODO: dump config.log when automated testign and configure fails
40
41 - add st_btime, st_btimesec, st_btimensec and st_gen accessors,
42 mostly for bsds which expose birthtime and st_gen members (netbsd, freebsd
43 but only st_gen on openbsd because they compiled their perl without support
44 for birthtimes).
45 - fix madvise and munlock to properly support negative offsets.
46 - allocate fd for the aio_close at boot time, to guarantee it working
47 later, rather than calling abort when it fails. also avoids
48 close-on-exec race issues after module load.
49 - #undef utime on win32, maybe this helps some reports of utime hangs.
50 - minor doc improvements.
51 - minor configure cleanups.
52
534.54 Tue Aug 14 13:54:48 CEST 2018
54 - include sys/mkdev.h or sys/sysmacros.h if available.
55 - further tweaks to configure invocation for systems requiring --rpath.
56 - no longer rely on custom paths on win32 platforms.
57 - try to work around buggy PAGESIZE macro on solaris.
58
594.53 Tue Aug 14 11:27:50 CEST 2018
60 - add $Config{libs} to LIBS for configure, to work around systems
61 with broken library dependencies (... openbsd).
62
634.52 Sun Aug 12 08:09:45 CEST 2018
64 - config.h.in was missing in distribution.
65
664.51 Sun Aug 12 07:24:14 CEST 2018
67 - complete rework of the autoconf framework: IO::AIO now uses its own
68 config.h, separate from libeio, and tries to test the actual perl
69 environment, not the standard system environment.
70 - provide nanosecond-accracy stat time accessors for both perl and IO::AIO
71 stat functions.
72 - removed non-portable C++ syntax from eio.c.
73 - try to fix readdir tests on cygwin spuriously failing.
74
754.5 Wed Aug 1 00:23:55 CEST 2018
76 - aio_mtouch touch all pages as requested, not just the first page in most cases.
77 - new function: IO::AIO::mremap, linux-specific mremap, with constants MREMAP_MAYMOVE
78 and MREMAP_FIXED.
79 - add O_ACCMODE.
80 - add (undocumented) MSG_CMSG_CLOEXEC and SOCK_CLOEXEC constants.
81
824.4 Tue Feb 20 07:54:12 CET 2018
83 - new aio_slurp request.
84 - add (experimental) IO::AIO::eventfd and timerfd* function.
85 - add (experimental) IO::AIO::get_fdlimit and IO::AIO::min_fdlimit.
86 - point out that aio_copy overwrites existing files.
87 - removed filesystem magic number table from aio_statvfs docs as
88 statvfs doesn't actually return this info at all (statfs does).
89 - add a bunch of (mostly linux-specific) constants for use in ioctls
90 (see aio_ioctl docs).
91 - treescan now has a proper manpage and useful --help output.
92 - new option --sync in treescan, to sync everything in a subtree.
93 - changed default for aio_msync flags to MSYNC_SYNC.
94 - document offset/length behaviour of mprotect/madvise.
95 - support linux's renameat2 (via aio_rename2).
96 - add aio_rename2, an aio_rename with flags.
97 - add F_DUPPFD_CLOEXEC, F_OFD_[SG]ETLKW? constants.
98 - add FALLOC_FL_INSERT_RANGE, FALLOC_FL_UNSHARE_RANGE.
99 - (libeio) use posix_close if available.
100 - (libeio) internal close() calls no longer disturb errno.
101 - add IO:AIO::FALLOC_FL_UNSHARE.
102 - update schmorp.h for removal of USE_SOCKETS_AS_HANDLES
103 and better eventfd detection.
104
1054.34 Sun May 1 19:18:24 CEST 2016
106 - def0.h was not properly generated during previous release, causing
107 compile errors on various platforms.
108 - major/minor were accidentally switched (reported by Alexander Lishenyuk).
109 - removed duplicate definition of MAP_HUGETLB, that was found due to
110 a bug in Perl::Tidy (testcase by alaska332@gmail.com).
111 - added (untested!) aio_fcntl, aio_ioctl requests.
112 - (libeio) names set via prctl are truncated to 15 chars + nul, not 16,
113 as manpages-dev originally claimed.
114
1154.33 Mon Jan 18 12:50:10 CET 2016
116 - add IO::AIO::pipe2 function.
117 - added support for FALLOC_FL_COLLAPSE_RANGE and FALLOC_FL_ZERO_RANGE
118 constants.
119 - added support for O_TMPFILE and O_PATH constants.
120 - added support for MAP_FIXED, MAP_GROWSDOWN,MAP_32BIT, MAP_HUGETLB, MAP_STACK
121 consdtants, whether they can be sensibly used or not.
122 - use NO_INIT where applicable.
123 - update libecb.
124 - added stability canary support.
125 - updated linux super magic table to 4.3.3.
126
1274.32 Wed Feb 11 20:32:11 CET 2015
128 - replace off_t by STRLEN where appropriate, should not result in
129 user-visible changes.
130 - update ecb.h for C11 compatibility.
131
1324.31 Tue Jun 3 03:29:27 CEST 2014
133 - work around more 5.20 bugs. backwards compatibility my ass.
134
1354.3 Fri Apr 11 06:22:38 CEST 2014
136 - perl5porters broke Async::Interrupt, BDB, EV, IO::AIO, OpenCL
137 without warning by switching the meaning of USE_SOCKETS_AS_HANDLES
138 in 5.18. What's so attractive about giving a shit about backwards
139 compatibility - I will never understand.
140
1414.2 Sat Jan 25 01:13:14 CET 2014
142 - aio_group could corrupt memory because it didn't restore
143 the stack after req_submit.
144 - be more careful on (e.g. permission) errors in bin/treescan.
145 - work around changes in ExtUtils::MakeMaker.
146 - (libeio) implement aio_realpath for win32.
147 - (xthread) work around compile time bugs in ptw32.
148 - added IO::AIO::pipesize.
149 - (libecb) insignificant update.
150
1514.19 Sun Jan 6 12:47:26 CET 2013
152 - avoid endless loop in fiemap with some XFS files.
153 - in aio_rename and aio_rmdir, specialcase the case of [$wd, "."]
154 and call rename/rmdir instead of renameat/unlinkat.
155
1564.18 Thu Oct 11 07:01:26 CEST 2012
157 - fix unintended xthread_create by intentionalising it :)
158
1594.17 Thu Oct 11 05:19:47 CEST 2012
160 - rename aio_fallocate to aio_allocate, to match documentation.
161 - add list of linux fsid values to aio_statvfs docs.
162 - work around a bug in btrfs' FIEMAP ioctl implementation.
163 - work around AIX bug: statvfs.f_fsid is a struct, not unsigned long
164 as per unix spec.
165
1664.16 Tue Aug 14 05:39:03 CEST 2012
167 - aio_statvfs was wromgly marked for wd emulation, causing
168 it to malfunction for paths.
169 - fix a crash in aio_fiemap, when used on ranges without any
170 extents.
171 - work around linux kernel bug (at least in 3.2): kernel might
172 trash fiemap input arguments.
173 - work around linux kernel bug (at least in 3.2): kernel does not
174 set FIEMAP_EXTENT_LAST on last segment.
175 - work around linux kernel bug (at least in 3.2): kernel silently
176 truncates segment count if a file.
177 - make fh argument of IO::AIO::mmap optional, also add mmap/munmap
178 to quick overview.
179 - splice can corrupt data.
180 - (libeio) remove pread/pwrite emulation.
181 - do not grow mmaped scalars in aio_read.
182 - add FALLOC_FL_PUNCH_HOLE and document fallocate.
183 - provide pread/pwrite for win32, making it link again on native win32.
184
1854.15 Tue Apr 10 06:59:00 CEST 2012
186 - always include linux/types.h for fiemap, for compatibility to
187 ancient systems (Paul Howarth).
188 - experimental support for IO::AIO::splice and ::tee (no aio_...).
189 - provide SEEK_HOLE and SEEK_DATA, if available.
190 - work around (again!) an immensely stupid bug in RHEL, defining
191 autoconf macros in linux system headers (analysed by Paul Howarth).
192
1934.14 Sat Apr 7 02:45:18 CEST 2012
194 - fix stat structure usage on windows, which caused bogus stat results.
195 - (libeio) make readahead emulation behave more like actual readahead by never failing.
196 - new request aio_seek.
197 - new request aio_fiemap.
198 - autogenerate the #ifdef/#define 0 blocks for symbols we export.
199
2004.12 Fri Dec 30 08:51:25 CET 2011
201 - realpath would return a random value if the name was too long,
202 instead of -1.
203 - port to c89.
204
2054.11 Mon Oct 10 00:24:11 CEST 2011
206 - libeio didn't compile on !linux (Paul Howarth).
207
2084.1 Sun Oct 9 10:24:11 CEST 2011
209 - IO::AIO did access uninitialised memory on unsuccessful stats.
210 - (libeio) added syncfs syscall wrapper.
211 - (libeio) set thread name on linux (ps -L/Hcx, top, gdb).
212 - (libeio) support multiple indepenent working directories.
213 - applied speling corrections by Nicholas Bamber.
214 - tune treescan #threads and #outstanding requests a bit.
215 - reduce the number of file descriptors in use at any one time
216 in treescan, to avoid running out of them (and using too much ram).
217 - take advantage of working directoriy abstractions
218 in aio_scandir and treescan.
219 - reduce compiled size by ~10% by not inlining some key functionality.
220 - added --progress switch to treescan.
221
2224.0 Mon Jul 18 05:01:10 CEST 2011
223 - INCOMPATIBLE CHANGE: fork is no longer supported (indeed, it never was),
224 see FORK BEHAVIOUR in manpage for details.
225 - passes testsuite on win32 now and may actually work
226 (activestate 5.10.1 / MSVC6, YMMV).
227 - (libeio) fix a deadlock where a wakeup signal could be missed when
228 a timeout occured at the same time.
229 - (libeio) added realpath.
230 - (libeio) added fallocate.
231 - (libeio) disabling sendfile on darwin unfortunately broke the emulation.
232 - (libeio) do not acquire any locks when forking.
233 - (libeio) use fewer time() syscalls when waiting for new requests.
234
2353.93 Wed Jun 29 23:44:18 CEST 2011
236 - ECB.H WAS MISSING.
237
2383.92 Wed Jun 29 14:45:41 CEST 2011
239 - ecb.h was missing.
240
2413.91 Wed Jun 29 13:24:42 CEST 2011
242 - (libeio) work around a Linux (and likely FreeBSD and other
243 kernels) bug where sendfile would not transfer all the requested
244 bytes on large transfers, using a heuristic.
245 - buggy sendfile caused aio_move/copy to sometimes fail for big
246 files (fortunately it checks that the whole file has been
247 transferred...)
248 - use libecb for higher performance and higher portability.
249 - (libeio) disable sendfile on darwin, it's too broken.
250 - disable fork tests on !linux, as only linux supports mixing
251 pthread and fork in perl.
252 - document the fact that fork doesn't work anymore when using
253 this module, on anything !GNU/Linux.
254 - increase timeout in t/04_fork.t, as too many CPAN-tester setups
255 run on a 0.1MHz cpu. Or so.
256
2573.9 Fri May 27 02:43:47 CEST 2011
258 - (libeio) fix memory corruption in aio_readdirx for the flags
259 combination READDIR_STAT_ORDER | READDIR_DIRS_FIRST.
260 - add lots of newer POSIX and GNU/Linux-specific open
261 flags.
262
2633.8 Sun Mar 27 12:25:33 CEST 2011
264 - use nonstandard but maybe-working-on-bsd fork technique.
265 - support a max_idle value of 0.
266 - support setting of idle timeout value (IO::AIO::idle_timeout).
267
2683.72 Fri Feb 11 04:25:38 CET 2011
269 - use _POSIX_MEMLOCK_RANGE to detect mlock/munlock.
270 - aio_mknod always used a dev_t value of 0.
271 - new treescan option: --grep.
272 - add more S_IF macros, and major/minor/makedev "macros".
273
2743.71 Thu Dec 30 08:18:46 CET 2010
275 - the numerical result value passed to callbacks did not stringify
276 correctly, due to internal reuse and failure to reset the sv flags.
277 - actually test for posix_[mf]advise, as at least uClibc defines
278 _POSIX_ADVISORY_INFO without actually having any of the required
279 funcitonality. ugh.
280
2813.7 Mon Nov 1 23:00:34 CET 2010
282 - implement/add madvise, mmap, munmap, aio_mlockall, munlockall,
283 aio_mlock, munlock, msync and mtouch to @EXPORT_OK.
284 - document the sad state of affairs w.r.t. pthread on many bsds.
285 - do not enable mmap on systems without _POSIX_MAPPED_FILES
286 (openbsd 4.8).
287 - do not leak memory in IO::AIO::mmap when the scalar already
288 had string-data.
289 - add O_RDWR, O_APPEND and O_EXCL symbols and semi-document
290 them.
291 - cache the result IV, for a minor speedup in the common case.
292 - croak when an mmapped-scalar changes location, to detect
293 user-errors better.
294 - fix aio_readlink prototype.
295
2963.65 Wed Mar 31 02:45:05 CEST 2010
297 - actually use PATH_MAX instead of NAME_MAX for readlink, as to not
298 cut off long pathnames in aio_readlink (based on patch by
299 Rasmus Andersson).
300 - a double fork partially killed the event pipe (great testcase
301 by dormando). affects IO::AIO, BDB and Async::Interrupt.
302 - suck steve's dick and rename our symbols to avoid colliding
303 with nonstandard identifier spam on the broken os x pseudo-os.
304 affects IO::AIO and BDB.
305
3063.6 Mon Jan 11 00:43:39 CET 2010
307 - (libeio) more fixes for the freebsd/apple sendfile - broken by
308 manpage standards, but apparently correct accoridng to actual
309 kernel sources.
310 - add IO::AIO::mmap/munmap support.
311 - add IO::AIO::m(un)lockall support.
312 - clean up manpage.
313
3143.5 Thu Jan 7 21:25:04 CET 2010
315 - (liebio) fix freebsd sendfile (Vanilla Hsu).
316 - (libeio) also fix darwin sendfile that suffered from a similar bug.
317 - add aio_statvfs as interface to statvfs/fstatvfs.
318 - work around buggy symlink() on cygwin in the testsuite.
319 - wtf. freebsd-8.0 actually passes the testsuite! I knew
320 they could implement fork and semaphores one day! cheers!
321
3223.4 Sat Jan 2 15:13:04 CET 2010
323 - (libeio) max_poll_time was not properly converted to ticks.
324 - clarify cancel_subs description.
325 - IO::AIO::sendfile did not actually return the return value
326 from the sendfile call.
327 - implement aio_msync, aio_mtouch.
328 - (libeio) tentatively support darwin in sendfile.
329
3303.31 Thu Nov 12 02:14:29 CET 2009
331 - fix result status documentation of aio_copy, aio_move.
332 - speed up object creation considerably by avoiding
333 hash lookups.
334
3353.3 Wed Aug 5 13:52:58 CEST 2009
336 - use common::sense.
337 - use common schmorp.h header.
338 - allow integers (file descriptors) in addition to file handles.
339 - take advantage of linux' eventfd (but it seems slower on smp?).
340 - use poll not select on posix platforms.
341
3423.261 Wed Jul 1 10:11:51 CEST 2009
343 - more 0S X workarounds (patch by Tokuhiro Matsuno).
344
3453.26 Tue Jun 30 09:33:26 CEST 2009
346 - 0S X of course claims to be posix 2008 but lacks posix_fadvise.
347 try to work around this horribly broken OS in a somewhat hackish
348 way. might help other os's too.
349
3503.25 Sat Jun 27 05:18:26 CEST 2009
351 - added IO::AIO::fadvise and IO::AIO::sendfile.
352 - (libeio) replaced quicksort+insertion sort by a tuned radix
353 sort + insertion sort, resulting in comparable runtime (usually
354 faster) to the old version, but without any ill side effects on
355 degenerated (for quicksort) data.
356 - (libeio) correctly sort dirs by inodes if we have perfect type
357 knowledge and DIRS_FIRST is used.
358 - (libeio) internally the wrong DT_* constants were used, but no
359 known system has differing EIO_DT_*/DT_* values, so not an issue.
360 - removed a (harmless) assert that was left over on the code
361 but should not have been.
362 - use more correct types (change IO length from IV to VAL64,
363 which makes a difference on systems without 64 bit perls).
364
3653.23 Sat Jun 13 16:57:58 CEST 2009
366 - fix off-by-one bug in aio_readdir that was introduced in the
367 rushed 3.22 release.
368
3693.22 Sat Jun 13 15:32:40 CEST 2009
370 - speed up readdirx sort algorithm slightly.
371 - bin/treescan was missing from distro tarball.
372
3733.21 Fri Jun 12 18:45:53 CEST 2009
374 - new options --dirs and --files for treescan.
375 - install bin/treescan by default.
376 - (libeio) aio_readdir can now be cancelled while executing.
377 - fix a printf format string for 64 bit systems (could lead
378 to problems on big endian 64 bit systems).
379 - do not use qsort() but our own algorithm: glibc initialises
380 the whole locale and I/O subsystem inside qsort, causing
381 a stack overflow on 32 bit machines. The new sort uses much less
382 stack and is more than twice as fast in typical situations.
383
3843.2 Sun Jun 7 20:30:05 CEST 2009
385 - (libeio) pwrite emulation was even more flawed than intended and did
386 not restore the file offset.
387 - add aio_readdirx, which can return inode and filetype and sort
388 the names in various ways.
389 - unfortunately, utime, chmod, chown on an open file that has just
390 been written can easily block, which caused aio_copy to block the
391 process. no more!
392 - no longer rely on dst path in aio_copy when futime is available.
393
3943.19 Tue Apr 21 22:05:21 CEST 2009
395 - more perl 5.10 workarounds for aio_read and write.
396 - aio_write no longer modifies the sv (if possible).
397 - aio_read now works correctly with magic values.
398
3993.18 Sun Apr 19 21:17:32 CEST 2009
400 - better diagnostics when some aio_* functions get passed an illegal fh.
401 - try to avoid crashes due to incompatible 5.10 API changes. grmbl.
402
4033.17 Thu Nov 20 08:45:36 CET 2008
404 - (libeio) added aio_sync_file_range (untested).
405 - add aio_busy to @IO::AIO::AIO_REQ.
406
4073.16 Wed Oct 22 18:28:01 CEST 2008
408 - use SvREFCNT_inc instead of SvREFCNT_inc_NN in a non-speed critical
409 part to improve portability to perl 5.8 (reported by szymon).
410
4113.15 Mon Oct 13 00:39:55 CEST 2008
412 - automatic removal of feeders was broken.
413 - (libeio) use a more robust method to detect whether a feeder
414 has added something to the group or not.
415
4163.1 Thu Oct 2 13:34:40 CEST 2008
417 - pre-deref the passed callback object, for increased speed
418 and decreased memory usage.
419 - call on_next_submit callback even for aio_group - impact unknown,
420 but seems more correct.
421 - $req->cb now returns the original callback.
422 - (libeio) pass EIO_GROUP/aio_group requests through the queue without
423 requiring a thread switch.
424 - (libeio) status code of aio_futime and aio_utime was always passed 0.
425 - do some other ยต-optimisations.
426
4273.07 Sat Aug 2 16:06:13 CEST 2008
428 - do not include LIBS in autoconf tests.
429
4303.06 Tue Jul 15 12:41:32 CEST 2008
431 - move preadwritelock definition before it's first reference,
432 to make it compile again on broken platforms (they still exist)
433 or badly cofngiured perls (redhat...), reported by Rob Bloodgood.
434
4353.05 Thu Jun 19 23:23:52 CEST 2008
436 - work around perl overriding readdir etc. with thread-unsafe
437 (sic!) versions.
438
4393.04 Wed Jun 18 01:35:38 CEST 2008
440 - (libeio) fix eio_mknod, which confused it's arguments.
441 - (libeio) do not use readdir_r, as Ulrich Drepper pointed out that this
442 is stupid.
443 - (libeio) fix eio__readahead prototype, patch by Jost Krieger.
444 - (libeio) fix a bug that could potentially cause IO::AIO
445 not to get initialised properly.
446
4473.03 Thu May 29 05:33:30 CEST 2008
448 - (libeio) correctly call pthread_attr_destroy ().
449 - (libeio) work around broken bsd headers once more.
450 - reduce shared library size again by not including wrappers.
451 - max_outstanding could cause poll to enter a busy-waiting loop.
452 - document the new IO::AIO::poll_cb result value.
453
4543.02 Mon May 12 02:32:02 CEST 2008
455 - fix a memory leak on aio_readlink.
456 - bring back working fchmod.
457 - nop and busy now set result to 0.
458 - set errno to ENOMEM when allocation fails.
459
4603.01 Sun May 11 03:07:03 CEST 2008
461 - (libeio) make it compile on systems without readahead or readdir_r.
462 - (libeio) improve configure check for readahead availability.
463 - do not try to link against -lrt.
464 - use a separate configure script for IO::AIO (not the libeio one).
465
4663.0 Sun May 11 00:57:14 CEST 2008
467 - added bin/treescan to the distribution.
468 - switched to using libeio.
469 - LOTS OF INCOMPATIBLE CHANGES:
470 - remove signal functionality, it is not worth the effort.
471 - max_outstanding no longer returns the previous number of requests.
472 - poll_cb no longer returns number of requests.
473
4742.62 Sat Apr 26 13:59:33 CEST 2008
475 - port to solaris perls configured for old posix
476 (analysed by Jost Krieger).
477 - keep a reference to the perl filehandle object in aio_close,
478 so it doesn't get closed prematurely, leading to ugly races.
479
4802.61 Wed Apr 16 18:45:02 CEST 2008
481 - fix treescan output duplication and improve output ordering.
482 also display files given on the commandline.
483 - use a different algorithm for aio_close that is faster
484 and probably has even lower chances of blocking.
485 - do our own stack memory management for threads - linux
486 allocates outrageous amounts of VM (not so bad unless you
487 use mlockall...), which severely limits the number of threads
488 on 32-bit arches: stack size is the larger of PTHREAD_STACK_MIN
489 and 4096 * sizeof (long) (usually this is 16..64k).
490
4912.6 Sun Mar 30 08:28:11 CEST 2008
492 - added aio_sync.
493 - added aio_pathsync.
494 - fix prototypes of (void) functions.
495
4962.51 Sat Oct 6 16:04:54 CEST 2007
497 - perlio isn't generally threadsafe, so aio_close could not work reliably.
498 aio_close now tries a safe hack that might not be that asynchronous
499 (see the manpage for details).
500 - discard callback return values as to not grow the stack endlessly
501 when poll_cb handles many requests without returning.
502 - minor code cleanups.
503
5042.5 Thu Oct 4 14:49:08 CEST 2007
505 - replaced _fd2fh with faster xs code.
506 - aio_close will now try to do "the right thing" and thus might
507 work sensibly for the very first time.
508
5092.41 Mon Sep 24 21:28:21 CEST 2007
510 - after fork, invest some work to make sure that the poll_fileno
511 stays stable (by dup2'ing the new fd over the old one), to make
512 it easier for programs/libs that don't control their forking
513 behaviour and cannot recreate their watchers.
514
5152.4 Sun Aug 5 18:44:22 CEST 2007
516 - add aio_truncate, aio_chmod, aio_chown, aio_utime (linux
517 successfully demonstrated that you can block on futimes...).
518 - allow undef as fileoffset for aio_read/write and use read/write(2)
519 internally (useful for sockets or O_APPEND handles).
520 - allow undef for length in aio_write.
521 - negative dataoffsets work as expected now in aio_read/aio_write.
522 - use NV instead of UV for 32 bit perls and file offsets, as NVs
523 have a larger range then.
524 - shared code between BDB and IO::AIO.
525 - aio_busy was completely broken. now fixed.
526 - readahead emulation now returns something.
527 - correctly set errno to ENOSYS on unimplemented functions
528 (should never happen, though).
529 - large changes to make it partially compile and run on win32,
530 but win32 lacks too much functionality, and perl overrides way
531 too many functions with crashing versions.
532
5332.33 Tue Jan 23 23:55:41 CET 2007
534 - fix install path (Andreas J. Koenig).
535
5362.32 Mon Jan 22 16:56:23 CET 2007
537 - added aio_rmtree.
538 - wow, aio_mkdir was missing.
539 - aio_load did return undef on error, not -1.
540 - use prefixexp not prefix in autoconf.pm
541 (suggested by ... rt.cpan.org unreachable).
542 - avoid installing autoconf.pm.
543
5442.31 Sat Jan 6 03:46:02 CET 2007
545 - added aio_load.
546
5472.3 Sat Dec 23 05:48:07 CET 2006
548 - fix off-by-one bug in aio_read, causing memory corruption
549 or crashes.
550
5512.21 Fri Dec 22 05:03:38 CET 2006
552 - minor doc updates.
553 - minor cleanups.
554 - IO::AIO::poll returns request count.
555 - undocumented and unfinished async-signal-reporting.
556
5572.2 Tue Oct 31 00:31:00 CET 2006
558 - minor doc updates.
559 - added aio_readlink.
560 - properly zero-terminate aio_read buffer.
561 - fix aio_read/write with nonzero dataoffset.
562 - reduced size of aio request structure.
563 - better diagnostics when pathnames etc. are not byte-encoded;
564 do not leak request in that case, either.
565
5662.1 Sun Oct 29 02:01:57 CET 2006
567 - INCOMPATIBLE CHANGE: replace IO::AIO::poll_some by
568 IO::AIO::max_poll_reqs and IO::AIO::max_poll_time.
569 - fix a bug in aio_move where it would fail everytime
570 it would have to copy files manually.
571 - doc updates.
572 - start threads only on (very low) demand.
573 - end superfluous threads automatically after 10s idling.
574 - add IO::AIO::max_idle to control this.
575 - some tuning applied to random places.
576 - add aio_mknod.
577
5782.0 Thu Oct 26 18:27:58 CEST 2006
579 - minor incompatibility: max_outstanding semantics have changed.
580 - major rewrite, consider all functionality EXPERIMENTAL.
581 - aio requests can be cancelled.
582 - callbacks can be (re-)set later.
583 - aio requests can choose between 9 priorities.
584 - add aio_group: aio requests can be grouped
585 into composite requests.
586 - generator interface for groups.
587 - add IO::AIO::poll_some.
588 - major documentation improvements.
589 - very minor bugfixes.
590 - add aio_nop for dummy requests.
591 - add aio_busy mainly for benchmarking and debugging.
592 - use "fast" mutexes on linux.
593 - use dynamic (and larger) buffers instead of
594 putting them onto the stack.
595 - optimise x86 and amd64 a bit.
596 - better error checking when ENOMEM.
597 - hopefully fix mem and dirp leaks on fork.
598 - warn about broken perl malloc.
599 - compiles on cygwin (but pread is broken on cygwin
600 which is not detected by autoconf, so you have to
601 edit autoconf/config.h yourself to enable emulation).
602
6031.8 Sat Jun 24 22:20:44 CEST 2006
604 - add and/or document aio_rename, aio_link, aio_symlink and aio_move.
605
6061.73 Wed Mar 1 22:49:32 CET 2006
607 - codename "jost"
608 - AIX/Solaris(?) aren't being helpful again, hardcode a value
609 for NAME_MAX and drive with your eyes closed (reported by
610 wcooley@nakedape.cc).
611
6121.72 Thu Feb 2 00:40:44 CET 2006
613 - another minor bug in aio_scandir, again, the callback was called
614 twice when the directory can't be stat'ed.
615
6161.71 Mon Dec 26 20:20:03 CET 2005
617 - grr, another minor bug in aio_scandir, this time resulting
618 in a runtime error.
619
6201.7 Mon Dec 26 19:29:48 CET 2005
621 - aio_scandir errornously called callback twice in some cases.
622 - added AnyEvent example.
623
6241.61 Wed Sep 7 19:40:42 CEST 2005
625 - no longer include $Config{libs}, as distros include too much
626 garbage in there that is not installed on typical systems
627 (for example, debian links perl against -lgdbm and many more
628 libraries despite perl not needing it, slowing down startup and
629 wasting memory).
630
6311.6 Tue Aug 30 17:44:44 CEST 2005
632 - added aio_readdir, aio_scandir.
633 - added aio_sendfile, including sendfile emulation when sendfile
4 when sendfile isn't available. Linux, FreeBSD and HP-UX might 634 isn't available. Linux, FreeBSD and HP-UX might work (sendfilev
5 work (sendfilev support is unavailable on my solaris 8 machine...). 635 support is unavailable on my solaris 8 machine, but preliminary
636 code is there. What's lacking is configury stuff and testing...).
6 637
71.5 Sat Aug 20 02:32:19 CEST 2005 6381.5 Sat Aug 20 02:32:19 CEST 2005
8 - create the aio threads on demand only. 639 - create the aio threads on demand only (good after forking).
9 - somebody nagged about C89 compatibility, so this release should 640 - somebody nagged about C89 compatibility, so this release should
10 be C89 compatible, but no guarantees for future ones. 641 be C89 compatible, but no guarantees for future ones.
11 - abort when the configure script fails. 642 - abort when the configure script fails.
12 643
131.4 Wed Aug 17 08:07:27 CEST 2005 6441.4 Wed Aug 17 08:07:27 CEST 2005
14 - forget to recreate the pipe after forking, this could cause 645 - forgot to recreate the pipe after forking, this could cause
15 deadlocks. 646 deadlocks.
16 647
171.3 Wed Aug 17 07:25:54 CEST 2005 6481.3 Wed Aug 17 07:25:54 CEST 2005
18 - properly propagate exceptions from callbacks, instead of silently 649 - properly propagate exceptions from callbacks, instead of silently
19 eating them. 650 eating them.

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