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Comparing IO-AIO/Changes (file contents):
Revision 1.5 by root, Sun Jul 10 21:04:24 2005 UTC vs.
Revision 1.385 by root, Fri Sep 6 22:03:08 2019 UTC

1Revision history for IO::AIO 1Revision history for IO::AIO
2 2
3TODO: scandir - some dirs mostly contain subdirs - invert logic?
4TODO: aio_cptree/mvtree
5TODO: vmsplice? (http://kerneltrap.org/node/6505 http://lwn.net/Articles/178199/)
6TODO: getxattr, setxattr, listxattr, removexattr etc.?
7TODO: emulation for splice?
8TODO: syncfs/sync windows:
9TODO: posix_fallocate when flags=0
10http://stackoverflow.com/questions/65170/how-to-get-name-associated-with-open-handle/5286888#5286888
11http://blogs.msdn.com/b/adioltean/archive/2005/04/16/408947.aspx
12http://msdn.microsoft.com/en-us/library/aa366789%28v=vs.85%29.aspx
13http://msdn.microsoft.com/en-us/library/windows/desktop/aa366789%28v=vs.85%29.aspx
14http://msdn.microsoft.com/en-us/library/windows/desktop/aa364425%28v=vs.85%29.aspx
15http://msdn.microsoft.com/en-us/library/windows/desktop/aa364963%28v=vs.85%29.aspx
16http://msdn.microsoft.com/en-us/library/windows/desktop/aa364996%28v=vs.85%29.aspx
17http://msdn.microsoft.com/en-us/library/windows/desktop/aa364994%28v=vs.85%29.aspx
18TODO: extra socket/tcp constants &c?
19TODO: name_to_handle_At + open_by_handle_at = clone fds
20TODO: lchown
21TODO: mount/umount2/MS_* flags
22TODO: fsmount/fsconfig et al. https://lwn.net/Articles/759499/
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
40TODO: statx
41TODO: pidfd_open/pidfd_send_signal (open/poll /proc?)
42
43 - added IO::AIO::accept4.
44 - add various F_SEAL related fcntl constants.
45
464.72 Wed Apr 3 04:56:03 CEST 2019
47 - (libeio) if fd 0 is available do not use it for aio_wd, as it
48 collides with IO::AIO::CWD.
49 - added IO::AIO::memfd_create.
50 - correctly include <sys/uio.h> in the vmsplice test.
51 - reduce codesize by ~7% on amd64 by declaring more functions
52 as noinline.
53 - documentation fixes and updates.
54 - experimental and undocumented preliminary support for synchronous statx.
55
564.71 Sun Mar 10 13:09:26 CET 2019
57 - due to an error in the linux manpages, the configure tests
58 for readahead, sync_file_range, splice etc. failed. This has been fixed.
59
604.7 Mon Mar 4 11:28:13 CET 2019
61 - majorly speed up scandir for the very special case of a non-POSIX
62 filesystem that nevertheless reports valid dt_type information.
63 The only known filesystem of this type is currently btrfs, which
64 didn't get it's act together to implement POSIX semantics in all
65 these years, and I am tired of waiting.
66 - add IO::AIO::MCL_ONFAULT for mlockall, add IO::AIO::mlockall.
67 - neither sys/mkdev.h nor sys/sysmacros.h were included, even when they
68 were detected by autoconf.
69
704.6 Sat Aug 25 21:58:36 CEST 2018
71 - add st_btime, st_btimesec, st_btimensec and st_gen accessors,
72 mostly for bsds which expose birthtime and st_gen members (netbsd, freebsd
73 but only st_gen on openbsd because they compiled their perl without support
74 for birthtimes).
75 - fix madvise and munlock to properly support negative offsets.
76 - allocate fd for the aio_close at boot time, to guarantee it working
77 later, rather than calling abort when it fails. also avoids
78 close-on-exec race issues after module load.
79 - #undef utime on win32, maybe this helps some reports of utime hangs.
80 - minor doc improvements.
81 - minor configure cleanups.
82 - use $Config{perllibs} instead of libs for configure. might help people
83 who didn't install all perl dependencies (might break things as well).
84
854.54 Tue Aug 14 13:54:48 CEST 2018
86 - include sys/mkdev.h or sys/sysmacros.h if available.
87 - further tweaks to configure invocation for systems requiring --rpath.
88 - no longer rely on custom paths on win32 platforms.
89 - try to work around buggy PAGESIZE macro on solaris.
90
914.53 Tue Aug 14 11:27:50 CEST 2018
92 - add $Config{libs} to LIBS for configure, to work around systems
93 with broken library dependencies (... openbsd).
94
954.52 Sun Aug 12 08:09:45 CEST 2018
96 - config.h.in was missing in distribution.
97
984.51 Sun Aug 12 07:24:14 CEST 2018
99 - complete rework of the autoconf framework: IO::AIO now uses its own
100 config.h, separate from libeio, and tries to test the actual perl
101 environment, not the standard system environment.
102 - provide nanosecond-accracy stat time accessors for both perl and IO::AIO
103 stat functions.
104 - removed non-portable C++ syntax from eio.c.
105 - try to fix readdir tests on cygwin spuriously failing.
106
1074.5 Wed Aug 1 00:23:55 CEST 2018
108 - aio_mtouch touch all pages as requested, not just the first page in most cases.
109 - new function: IO::AIO::mremap, linux-specific mremap, with constants MREMAP_MAYMOVE
110 and MREMAP_FIXED.
111 - add O_ACCMODE.
112 - add (undocumented) MSG_CMSG_CLOEXEC and SOCK_CLOEXEC constants.
113
1144.4 Tue Feb 20 07:54:12 CET 2018
115 - new aio_slurp request.
116 - add (experimental) IO::AIO::eventfd and timerfd* function.
117 - add (experimental) IO::AIO::get_fdlimit and IO::AIO::min_fdlimit.
118 - point out that aio_copy overwrites existing files.
119 - removed filesystem magic number table from aio_statvfs docs as
120 statvfs doesn't actually return this info at all (statfs does).
121 - add a bunch of (mostly linux-specific) constants for use in ioctls
122 (see aio_ioctl docs).
123 - treescan now has a proper manpage and useful --help output.
124 - new option --sync in treescan, to sync everything in a subtree.
125 - changed default for aio_msync flags to MSYNC_SYNC.
126 - document offset/length behaviour of mprotect/madvise.
127 - support linux's renameat2 (via aio_rename2).
128 - add aio_rename2, an aio_rename with flags.
129 - add F_DUPPFD_CLOEXEC, F_OFD_[SG]ETLKW? constants.
130 - add FALLOC_FL_INSERT_RANGE, FALLOC_FL_UNSHARE_RANGE.
131 - (libeio) use posix_close if available.
132 - (libeio) internal close() calls no longer disturb errno.
133 - add IO:AIO::FALLOC_FL_UNSHARE.
134 - update schmorp.h for removal of USE_SOCKETS_AS_HANDLES
135 and better eventfd detection.
136
1374.34 Sun May 1 19:18:24 CEST 2016
138 - def0.h was not properly generated during previous release, causing
139 compile errors on various platforms.
140 - major/minor were accidentally switched (reported by Alexander Lishenyuk).
141 - removed duplicate definition of MAP_HUGETLB, that was found due to
142 a bug in Perl::Tidy (testcase by alaska332@gmail.com).
143 - added (untested!) aio_fcntl, aio_ioctl requests.
144 - (libeio) names set via prctl are truncated to 15 chars + nul, not 16,
145 as manpages-dev originally claimed.
146
1474.33 Mon Jan 18 12:50:10 CET 2016
148 - add IO::AIO::pipe2 function.
149 - added support for FALLOC_FL_COLLAPSE_RANGE and FALLOC_FL_ZERO_RANGE
150 constants.
151 - added support for O_TMPFILE and O_PATH constants.
152 - added support for MAP_FIXED, MAP_GROWSDOWN,MAP_32BIT, MAP_HUGETLB, MAP_STACK
153 consdtants, whether they can be sensibly used or not.
154 - use NO_INIT where applicable.
155 - update libecb.
156 - added stability canary support.
157 - updated linux super magic table to 4.3.3.
158
1594.32 Wed Feb 11 20:32:11 CET 2015
160 - replace off_t by STRLEN where appropriate, should not result in
161 user-visible changes.
162 - update ecb.h for C11 compatibility.
163
1644.31 Tue Jun 3 03:29:27 CEST 2014
165 - work around more 5.20 bugs. backwards compatibility my ass.
166
1674.3 Fri Apr 11 06:22:38 CEST 2014
168 - perl5porters broke Async::Interrupt, BDB, EV, IO::AIO, OpenCL
169 without warning by switching the meaning of USE_SOCKETS_AS_HANDLES
170 in 5.18. What's so attractive about giving a shit about backwards
171 compatibility - I will never understand.
172
1734.2 Sat Jan 25 01:13:14 CET 2014
174 - aio_group could corrupt memory because it didn't restore
175 the stack after req_submit.
176 - be more careful on (e.g. permission) errors in bin/treescan.
177 - work around changes in ExtUtils::MakeMaker.
178 - (libeio) implement aio_realpath for win32.
179 - (xthread) work around compile time bugs in ptw32.
180 - added IO::AIO::pipesize.
181 - (libecb) insignificant update.
182
1834.19 Sun Jan 6 12:47:26 CET 2013
184 - avoid endless loop in fiemap with some XFS files.
185 - in aio_rename and aio_rmdir, specialcase the case of [$wd, "."]
186 and call rename/rmdir instead of renameat/unlinkat.
187
1884.18 Thu Oct 11 07:01:26 CEST 2012
189 - fix unintended xthread_create by intentionalising it :)
190
1914.17 Thu Oct 11 05:19:47 CEST 2012
192 - rename aio_fallocate to aio_allocate, to match documentation.
193 - add list of linux fsid values to aio_statvfs docs.
194 - work around a bug in btrfs' FIEMAP ioctl implementation.
195 - work around AIX bug: statvfs.f_fsid is a struct, not unsigned long
196 as per unix spec.
197
1984.16 Tue Aug 14 05:39:03 CEST 2012
199 - aio_statvfs was wromgly marked for wd emulation, causing
200 it to malfunction for paths.
201 - fix a crash in aio_fiemap, when used on ranges without any
202 extents.
203 - work around linux kernel bug (at least in 3.2): kernel might
204 trash fiemap input arguments.
205 - work around linux kernel bug (at least in 3.2): kernel does not
206 set FIEMAP_EXTENT_LAST on last segment.
207 - work around linux kernel bug (at least in 3.2): kernel silently
208 truncates segment count if a file.
209 - make fh argument of IO::AIO::mmap optional, also add mmap/munmap
210 to quick overview.
211 - splice can corrupt data.
212 - (libeio) remove pread/pwrite emulation.
213 - do not grow mmaped scalars in aio_read.
214 - add FALLOC_FL_PUNCH_HOLE and document fallocate.
215 - provide pread/pwrite for win32, making it link again on native win32.
216
2174.15 Tue Apr 10 06:59:00 CEST 2012
218 - always include linux/types.h for fiemap, for compatibility to
219 ancient systems (Paul Howarth).
220 - experimental support for IO::AIO::splice and ::tee (no aio_...).
221 - provide SEEK_HOLE and SEEK_DATA, if available.
222 - work around (again!) an immensely stupid bug in RHEL, defining
223 autoconf macros in linux system headers (analysed by Paul Howarth).
224
2254.14 Sat Apr 7 02:45:18 CEST 2012
226 - fix stat structure usage on windows, which caused bogus stat results.
227 - (libeio) make readahead emulation behave more like actual readahead by never failing.
228 - new request aio_seek.
229 - new request aio_fiemap.
230 - autogenerate the #ifdef/#define 0 blocks for symbols we export.
231
2324.12 Fri Dec 30 08:51:25 CET 2011
233 - realpath would return a random value if the name was too long,
234 instead of -1.
235 - port to c89.
236
2374.11 Mon Oct 10 00:24:11 CEST 2011
238 - libeio didn't compile on !linux (Paul Howarth).
239
2404.1 Sun Oct 9 10:24:11 CEST 2011
241 - IO::AIO did access uninitialised memory on unsuccessful stats.
242 - (libeio) added syncfs syscall wrapper.
243 - (libeio) set thread name on linux (ps -L/Hcx, top, gdb).
244 - (libeio) support multiple indepenent working directories.
245 - applied speling corrections by Nicholas Bamber.
246 - tune treescan #threads and #outstanding requests a bit.
247 - reduce the number of file descriptors in use at any one time
248 in treescan, to avoid running out of them (and using too much ram).
249 - take advantage of working directoriy abstractions
250 in aio_scandir and treescan.
251 - reduce compiled size by ~10% by not inlining some key functionality.
252 - added --progress switch to treescan.
253
2544.0 Mon Jul 18 05:01:10 CEST 2011
255 - INCOMPATIBLE CHANGE: fork is no longer supported (indeed, it never was),
256 see FORK BEHAVIOUR in manpage for details.
257 - passes testsuite on win32 now and may actually work
258 (activestate 5.10.1 / MSVC6, YMMV).
259 - (libeio) fix a deadlock where a wakeup signal could be missed when
260 a timeout occured at the same time.
261 - (libeio) added realpath.
262 - (libeio) added fallocate.
263 - (libeio) disabling sendfile on darwin unfortunately broke the emulation.
264 - (libeio) do not acquire any locks when forking.
265 - (libeio) use fewer time() syscalls when waiting for new requests.
266
2673.93 Wed Jun 29 23:44:18 CEST 2011
268 - ECB.H WAS MISSING.
269
2703.92 Wed Jun 29 14:45:41 CEST 2011
271 - ecb.h was missing.
272
2733.91 Wed Jun 29 13:24:42 CEST 2011
274 - (libeio) work around a Linux (and likely FreeBSD and other
275 kernels) bug where sendfile would not transfer all the requested
276 bytes on large transfers, using a heuristic.
277 - buggy sendfile caused aio_move/copy to sometimes fail for big
278 files (fortunately it checks that the whole file has been
279 transferred...)
280 - use libecb for higher performance and higher portability.
281 - (libeio) disable sendfile on darwin, it's too broken.
282 - disable fork tests on !linux, as only linux supports mixing
283 pthread and fork in perl.
284 - document the fact that fork doesn't work anymore when using
285 this module, on anything !GNU/Linux.
286 - increase timeout in t/04_fork.t, as too many CPAN-tester setups
287 run on a 0.1MHz cpu. Or so.
288
2893.9 Fri May 27 02:43:47 CEST 2011
290 - (libeio) fix memory corruption in aio_readdirx for the flags
291 combination READDIR_STAT_ORDER | READDIR_DIRS_FIRST.
292 - add lots of newer POSIX and GNU/Linux-specific open
293 flags.
294
2953.8 Sun Mar 27 12:25:33 CEST 2011
296 - use nonstandard but maybe-working-on-bsd fork technique.
297 - support a max_idle value of 0.
298 - support setting of idle timeout value (IO::AIO::idle_timeout).
299
3003.72 Fri Feb 11 04:25:38 CET 2011
301 - use _POSIX_MEMLOCK_RANGE to detect mlock/munlock.
302 - aio_mknod always used a dev_t value of 0.
303 - new treescan option: --grep.
304 - add more S_IF macros, and major/minor/makedev "macros".
305
3063.71 Thu Dec 30 08:18:46 CET 2010
307 - the numerical result value passed to callbacks did not stringify
308 correctly, due to internal reuse and failure to reset the sv flags.
309 - actually test for posix_[mf]advise, as at least uClibc defines
310 _POSIX_ADVISORY_INFO without actually having any of the required
311 funcitonality. ugh.
312
3133.7 Mon Nov 1 23:00:34 CET 2010
314 - implement/add madvise, mmap, munmap, aio_mlockall, munlockall,
315 aio_mlock, munlock, msync and mtouch to @EXPORT_OK.
316 - document the sad state of affairs w.r.t. pthread on many bsds.
317 - do not enable mmap on systems without _POSIX_MAPPED_FILES
318 (openbsd 4.8).
319 - do not leak memory in IO::AIO::mmap when the scalar already
320 had string-data.
321 - add O_RDWR, O_APPEND and O_EXCL symbols and semi-document
322 them.
323 - cache the result IV, for a minor speedup in the common case.
324 - croak when an mmapped-scalar changes location, to detect
325 user-errors better.
326 - fix aio_readlink prototype.
327
3283.65 Wed Mar 31 02:45:05 CEST 2010
329 - actually use PATH_MAX instead of NAME_MAX for readlink, as to not
330 cut off long pathnames in aio_readlink (based on patch by
331 Rasmus Andersson).
332 - a double fork partially killed the event pipe (great testcase
333 by dormando). affects IO::AIO, BDB and Async::Interrupt.
334 - suck steve's dick and rename our symbols to avoid colliding
335 with nonstandard identifier spam on the broken os x pseudo-os.
336 affects IO::AIO and BDB.
337
3383.6 Mon Jan 11 00:43:39 CET 2010
339 - (libeio) more fixes for the freebsd/apple sendfile - broken by
340 manpage standards, but apparently correct accoridng to actual
341 kernel sources.
342 - add IO::AIO::mmap/munmap support.
343 - add IO::AIO::m(un)lockall support.
344 - clean up manpage.
345
3463.5 Thu Jan 7 21:25:04 CET 2010
347 - (liebio) fix freebsd sendfile (Vanilla Hsu).
348 - (libeio) also fix darwin sendfile that suffered from a similar bug.
349 - add aio_statvfs as interface to statvfs/fstatvfs.
350 - work around buggy symlink() on cygwin in the testsuite.
351 - wtf. freebsd-8.0 actually passes the testsuite! I knew
352 they could implement fork and semaphores one day! cheers!
353
3543.4 Sat Jan 2 15:13:04 CET 2010
355 - (libeio) max_poll_time was not properly converted to ticks.
356 - clarify cancel_subs description.
357 - IO::AIO::sendfile did not actually return the return value
358 from the sendfile call.
359 - implement aio_msync, aio_mtouch.
360 - (libeio) tentatively support darwin in sendfile.
361
3623.31 Thu Nov 12 02:14:29 CET 2009
363 - fix result status documentation of aio_copy, aio_move.
364 - speed up object creation considerably by avoiding
365 hash lookups.
366
3673.3 Wed Aug 5 13:52:58 CEST 2009
368 - use common::sense.
369 - use common schmorp.h header.
370 - allow integers (file descriptors) in addition to file handles.
371 - take advantage of linux' eventfd (but it seems slower on smp?).
372 - use poll not select on posix platforms.
373
3743.261 Wed Jul 1 10:11:51 CEST 2009
375 - more 0S X workarounds (patch by Tokuhiro Matsuno).
376
3773.26 Tue Jun 30 09:33:26 CEST 2009
378 - 0S X of course claims to be posix 2008 but lacks posix_fadvise.
379 try to work around this horribly broken OS in a somewhat hackish
380 way. might help other os's too.
381
3823.25 Sat Jun 27 05:18:26 CEST 2009
383 - added IO::AIO::fadvise and IO::AIO::sendfile.
384 - (libeio) replaced quicksort+insertion sort by a tuned radix
385 sort + insertion sort, resulting in comparable runtime (usually
386 faster) to the old version, but without any ill side effects on
387 degenerated (for quicksort) data.
388 - (libeio) correctly sort dirs by inodes if we have perfect type
389 knowledge and DIRS_FIRST is used.
390 - (libeio) internally the wrong DT_* constants were used, but no
391 known system has differing EIO_DT_*/DT_* values, so not an issue.
392 - removed a (harmless) assert that was left over on the code
393 but should not have been.
394 - use more correct types (change IO length from IV to VAL64,
395 which makes a difference on systems without 64 bit perls).
396
3973.23 Sat Jun 13 16:57:58 CEST 2009
398 - fix off-by-one bug in aio_readdir that was introduced in the
399 rushed 3.22 release.
400
4013.22 Sat Jun 13 15:32:40 CEST 2009
402 - speed up readdirx sort algorithm slightly.
403 - bin/treescan was missing from distro tarball.
404
4053.21 Fri Jun 12 18:45:53 CEST 2009
406 - new options --dirs and --files for treescan.
407 - install bin/treescan by default.
408 - (libeio) aio_readdir can now be cancelled while executing.
409 - fix a printf format string for 64 bit systems (could lead
410 to problems on big endian 64 bit systems).
411 - do not use qsort() but our own algorithm: glibc initialises
412 the whole locale and I/O subsystem inside qsort, causing
413 a stack overflow on 32 bit machines. The new sort uses much less
414 stack and is more than twice as fast in typical situations.
415
4163.2 Sun Jun 7 20:30:05 CEST 2009
417 - (libeio) pwrite emulation was even more flawed than intended and did
418 not restore the file offset.
419 - add aio_readdirx, which can return inode and filetype and sort
420 the names in various ways.
421 - unfortunately, utime, chmod, chown on an open file that has just
422 been written can easily block, which caused aio_copy to block the
423 process. no more!
424 - no longer rely on dst path in aio_copy when futime is available.
425
4263.19 Tue Apr 21 22:05:21 CEST 2009
427 - more perl 5.10 workarounds for aio_read and write.
428 - aio_write no longer modifies the sv (if possible).
429 - aio_read now works correctly with magic values.
430
4313.18 Sun Apr 19 21:17:32 CEST 2009
432 - better diagnostics when some aio_* functions get passed an illegal fh.
433 - try to avoid crashes due to incompatible 5.10 API changes. grmbl.
434
4353.17 Thu Nov 20 08:45:36 CET 2008
436 - (libeio) added aio_sync_file_range (untested).
437 - add aio_busy to @IO::AIO::AIO_REQ.
438
4393.16 Wed Oct 22 18:28:01 CEST 2008
440 - use SvREFCNT_inc instead of SvREFCNT_inc_NN in a non-speed critical
441 part to improve portability to perl 5.8 (reported by szymon).
442
4433.15 Mon Oct 13 00:39:55 CEST 2008
444 - automatic removal of feeders was broken.
445 - (libeio) use a more robust method to detect whether a feeder
446 has added something to the group or not.
447
4483.1 Thu Oct 2 13:34:40 CEST 2008
449 - pre-deref the passed callback object, for increased speed
450 and decreased memory usage.
451 - call on_next_submit callback even for aio_group - impact unknown,
452 but seems more correct.
453 - $req->cb now returns the original callback.
454 - (libeio) pass EIO_GROUP/aio_group requests through the queue without
455 requiring a thread switch.
456 - (libeio) status code of aio_futime and aio_utime was always passed 0.
457 - do some other ยต-optimisations.
458
4593.07 Sat Aug 2 16:06:13 CEST 2008
460 - do not include LIBS in autoconf tests.
461
4623.06 Tue Jul 15 12:41:32 CEST 2008
463 - move preadwritelock definition before it's first reference,
464 to make it compile again on broken platforms (they still exist)
465 or badly cofngiured perls (redhat...), reported by Rob Bloodgood.
466
4673.05 Thu Jun 19 23:23:52 CEST 2008
468 - work around perl overriding readdir etc. with thread-unsafe
469 (sic!) versions.
470
4713.04 Wed Jun 18 01:35:38 CEST 2008
472 - (libeio) fix eio_mknod, which confused it's arguments.
473 - (libeio) do not use readdir_r, as Ulrich Drepper pointed out that this
474 is stupid.
475 - (libeio) fix eio__readahead prototype, patch by Jost Krieger.
476 - (libeio) fix a bug that could potentially cause IO::AIO
477 not to get initialised properly.
478
4793.03 Thu May 29 05:33:30 CEST 2008
480 - (libeio) correctly call pthread_attr_destroy ().
481 - (libeio) work around broken bsd headers once more.
482 - reduce shared library size again by not including wrappers.
483 - max_outstanding could cause poll to enter a busy-waiting loop.
484 - document the new IO::AIO::poll_cb result value.
485
4863.02 Mon May 12 02:32:02 CEST 2008
487 - fix a memory leak on aio_readlink.
488 - bring back working fchmod.
489 - nop and busy now set result to 0.
490 - set errno to ENOMEM when allocation fails.
491
4923.01 Sun May 11 03:07:03 CEST 2008
493 - (libeio) make it compile on systems without readahead or readdir_r.
494 - (libeio) improve configure check for readahead availability.
495 - do not try to link against -lrt.
496 - use a separate configure script for IO::AIO (not the libeio one).
497
4983.0 Sun May 11 00:57:14 CEST 2008
499 - added bin/treescan to the distribution.
500 - switched to using libeio.
501 - LOTS OF INCOMPATIBLE CHANGES:
502 - remove signal functionality, it is not worth the effort.
503 - max_outstanding no longer returns the previous number of requests.
504 - poll_cb no longer returns number of requests.
505
5062.62 Sat Apr 26 13:59:33 CEST 2008
507 - port to solaris perls configured for old posix
508 (analysed by Jost Krieger).
509 - keep a reference to the perl filehandle object in aio_close,
510 so it doesn't get closed prematurely, leading to ugly races.
511
5122.61 Wed Apr 16 18:45:02 CEST 2008
513 - fix treescan output duplication and improve output ordering.
514 also display files given on the commandline.
515 - use a different algorithm for aio_close that is faster
516 and probably has even lower chances of blocking.
517 - do our own stack memory management for threads - linux
518 allocates outrageous amounts of VM (not so bad unless you
519 use mlockall...), which severely limits the number of threads
520 on 32-bit arches: stack size is the larger of PTHREAD_STACK_MIN
521 and 4096 * sizeof (long) (usually this is 16..64k).
522
5232.6 Sun Mar 30 08:28:11 CEST 2008
524 - added aio_sync.
525 - added aio_pathsync.
526 - fix prototypes of (void) functions.
527
5282.51 Sat Oct 6 16:04:54 CEST 2007
529 - perlio isn't generally threadsafe, so aio_close could not work reliably.
530 aio_close now tries a safe hack that might not be that asynchronous
531 (see the manpage for details).
532 - discard callback return values as to not grow the stack endlessly
533 when poll_cb handles many requests without returning.
534 - minor code cleanups.
535
5362.5 Thu Oct 4 14:49:08 CEST 2007
537 - replaced _fd2fh with faster xs code.
538 - aio_close will now try to do "the right thing" and thus might
539 work sensibly for the very first time.
540
5412.41 Mon Sep 24 21:28:21 CEST 2007
542 - after fork, invest some work to make sure that the poll_fileno
543 stays stable (by dup2'ing the new fd over the old one), to make
544 it easier for programs/libs that don't control their forking
545 behaviour and cannot recreate their watchers.
546
5472.4 Sun Aug 5 18:44:22 CEST 2007
548 - add aio_truncate, aio_chmod, aio_chown, aio_utime (linux
549 successfully demonstrated that you can block on futimes...).
550 - allow undef as fileoffset for aio_read/write and use read/write(2)
551 internally (useful for sockets or O_APPEND handles).
552 - allow undef for length in aio_write.
553 - negative dataoffsets work as expected now in aio_read/aio_write.
554 - use NV instead of UV for 32 bit perls and file offsets, as NVs
555 have a larger range then.
556 - shared code between BDB and IO::AIO.
557 - aio_busy was completely broken. now fixed.
558 - readahead emulation now returns something.
559 - correctly set errno to ENOSYS on unimplemented functions
560 (should never happen, though).
561 - large changes to make it partially compile and run on win32,
562 but win32 lacks too much functionality, and perl overrides way
563 too many functions with crashing versions.
564
5652.33 Tue Jan 23 23:55:41 CET 2007
566 - fix install path (Andreas J. Koenig).
567
5682.32 Mon Jan 22 16:56:23 CET 2007
569 - added aio_rmtree.
570 - wow, aio_mkdir was missing.
571 - aio_load did return undef on error, not -1.
572 - use prefixexp not prefix in autoconf.pm
573 (suggested by ... rt.cpan.org unreachable).
574 - avoid installing autoconf.pm.
575
5762.31 Sat Jan 6 03:46:02 CET 2007
577 - added aio_load.
578
5792.3 Sat Dec 23 05:48:07 CET 2006
580 - fix off-by-one bug in aio_read, causing memory corruption
581 or crashes.
582
5832.21 Fri Dec 22 05:03:38 CET 2006
584 - minor doc updates.
585 - minor cleanups.
586 - IO::AIO::poll returns request count.
587 - undocumented and unfinished async-signal-reporting.
588
5892.2 Tue Oct 31 00:31:00 CET 2006
590 - minor doc updates.
591 - added aio_readlink.
592 - properly zero-terminate aio_read buffer.
593 - fix aio_read/write with nonzero dataoffset.
594 - reduced size of aio request structure.
595 - better diagnostics when pathnames etc. are not byte-encoded;
596 do not leak request in that case, either.
597
5982.1 Sun Oct 29 02:01:57 CET 2006
599 - INCOMPATIBLE CHANGE: replace IO::AIO::poll_some by
600 IO::AIO::max_poll_reqs and IO::AIO::max_poll_time.
601 - fix a bug in aio_move where it would fail everytime
602 it would have to copy files manually.
603 - doc updates.
604 - start threads only on (very low) demand.
605 - end superfluous threads automatically after 10s idling.
606 - add IO::AIO::max_idle to control this.
607 - some tuning applied to random places.
608 - add aio_mknod.
609
6102.0 Thu Oct 26 18:27:58 CEST 2006
611 - minor incompatibility: max_outstanding semantics have changed.
612 - major rewrite, consider all functionality EXPERIMENTAL.
613 - aio requests can be cancelled.
614 - callbacks can be (re-)set later.
615 - aio requests can choose between 9 priorities.
616 - add aio_group: aio requests can be grouped
617 into composite requests.
618 - generator interface for groups.
619 - add IO::AIO::poll_some.
620 - major documentation improvements.
621 - very minor bugfixes.
622 - add aio_nop for dummy requests.
623 - add aio_busy mainly for benchmarking and debugging.
624 - use "fast" mutexes on linux.
625 - use dynamic (and larger) buffers instead of
626 putting them onto the stack.
627 - optimise x86 and amd64 a bit.
628 - better error checking when ENOMEM.
629 - hopefully fix mem and dirp leaks on fork.
630 - warn about broken perl malloc.
631 - compiles on cygwin (but pread is broken on cygwin
632 which is not detected by autoconf, so you have to
633 edit autoconf/config.h yourself to enable emulation).
634
6351.8 Sat Jun 24 22:20:44 CEST 2006
636 - add and/or document aio_rename, aio_link, aio_symlink and aio_move.
637
6381.73 Wed Mar 1 22:49:32 CET 2006
639 - codename "jost"
640 - AIX/Solaris(?) aren't being helpful again, hardcode a value
641 for NAME_MAX and drive with your eyes closed (reported by
642 wcooley@nakedape.cc).
643
6441.72 Thu Feb 2 00:40:44 CET 2006
645 - another minor bug in aio_scandir, again, the callback was called
646 twice when the directory can't be stat'ed.
647
6481.71 Mon Dec 26 20:20:03 CET 2005
649 - grr, another minor bug in aio_scandir, this time resulting
650 in a runtime error.
651
6521.7 Mon Dec 26 19:29:48 CET 2005
653 - aio_scandir errornously called callback twice in some cases.
654 - added AnyEvent example.
655
6561.61 Wed Sep 7 19:40:42 CEST 2005
657 - no longer include $Config{libs}, as distros include too much
658 garbage in there that is not installed on typical systems
659 (for example, debian links perl against -lgdbm and many more
660 libraries despite perl not needing it, slowing down startup and
661 wasting memory).
662
6631.6 Tue Aug 30 17:44:44 CEST 2005
664 - added aio_readdir, aio_scandir.
665 - added aio_sendfile, including sendfile emulation when sendfile
666 isn't available. Linux, FreeBSD and HP-UX might work (sendfilev
667 support is unavailable on my solaris 8 machine, but preliminary
668 code is there. What's lacking is configury stuff and testing...).
669
6701.5 Sat Aug 20 02:32:19 CEST 2005
671 - create the aio threads on demand only (good after forking).
672 - somebody nagged about C89 compatibility, so this release should
673 be C89 compatible, but no guarantees for future ones.
674 - abort when the configure script fails.
675
6761.4 Wed Aug 17 08:07:27 CEST 2005
677 - forgot to recreate the pipe after forking, this could cause
678 deadlocks.
679
6801.3 Wed Aug 17 07:25:54 CEST 2005
681 - properly propagate exceptions from callbacks, instead of silently
682 eating them.
683 - use a different fork algorithm that avoids recursive callback
684 invocations and reduces fork latency in busy processes.
685 - fix a bug where the buffer scalar in aio_read got assigned the wrong
686 length after reading.
687 - fix a bug where the child would process some outstanding requests
688 from the parent.
689 - make a copy of the callback scalar, to avoid some very uncommon
690 (but valid) usages where the callback scalar changes.
691 - the callback was never freed in aio_read/aio_write.
692 - aio_read/aio_write will now set the readonly flag on the data
693 scalar for better error reporting.
694
6951.2 Wed Aug 17 01:22:58 CEST 2005
696 - verified on cygwin, linux/amd64+ia32+alpha, solaris.
697 - use SvPVbyte for filenames now. You *need* to encode your strings to
698 the external filename encoding first.
699 - fix the bug where filehandles could leak (again).
700 - clarify freebsd situation: make it work and tell me how, or go away
701 with your underdocumented, broken and outdated OS.
702 - fork'ing should now be officially supported (where linux and
703 posix contradict each other, I followed posix).
704 - only call read() once per poll, not twice (speedup).
705 - new functions: aio_rmdir, aio_symlink.
706 - force callback arguments to be undef or a reference, for better
707 error catching.
708
7091.1 Sun Aug 7 05:27:23 CEST 2005
710 - added configure script to detect availability of some calls.
711 (imperfect, as we cannot detect things like -lrt due to missing
712 feedback yet).
713 - emulate fdatasync via fsync, pread/pwrite via unsafe read/write
714 and readahead via manual reading on platforms lacking those.
715 - ported t/03_errors.t+framework by Brad Fitzpatrick
716 from Linux::AIO.
717 - removed XOPEN_SOURCE because stupid solaris 9 doesn't
718 compile with it enabled. Probably breaks others. Oh well.
719 - try to be more careful with errno on non-threaded perls.
720 - cygwins perl insisted on a matching open mode when morphing
721 the fd to an fh.
722 - convert sv's to "byte" encoding in aio_read/aio_write. Might
723 do that for pathnames, too, in the future, so make sure you
724 properly encode your pathnames.
725
7261.0 Fri Jul 22 10:43:30 CEST 2005
727 - aio_open did not reliably deliver (open) filehandles.
728 - all aio_*-functions keep a reference to the filehandle so
729 it doesn't go away while the aio requests is working on it.
730 - disable warnings in AIO.pm.
731
7320.9 Wed Jul 20 23:55:04 CEST 2005
733 - allow recursive calls to poll_cb, use less locking calls, too.
734 - fix the Gtk2-example in the SYNOPSIS.
735 - use pread/pwrite not pread64/pwrite64. this was simply a leftover
736 from Linux::AIO.
737 (found by compiling on cygwin. Unfortunately, cygwin declares but
738 does not implement pread/pwrite).
739 - only include <sys/syscall.h> on linux.
740
7410.5 Tue Jul 12 13:03:09 CEST 2005
742 - removed #include <endian.h>, it's not portable, and we don't
743 need it anyway.
744 - link against -lrt, as it might contain goodies such as fdatasync,
745 and often aio_read, which we do not use yet, but it shouldn't hurt.
746
7470.4 Mon Jul 11 05:28:25 CEST 2005
748 - added IO::AIO::flush, IO::AIO::poll.
749 - make callback argument optional for all calls.
750
7510.3 Mon Jul 11 01:42:37 CEST 2005
3 - restructured manpage. 752 - restructured manpage.
753 - added SYNOPSIS with examples for Event, Glib, Tk.
754 - remove explicit context support so I don't have to maintain
755 it for threaded perls (i.e. it should work now :).
4 756
50.2 Sun Jul 10 22:57:12 CEST 2005 7570.2 Sun Jul 10 22:57:12 CEST 2005
6 - return immediately from poll_wait if nreqs==0. 758 - return immediately from poll_wait if nreqs==0.
7 - get rid of the request pipe and use faster thread-thread 759 - get rid of the request pipe and use faster thread-thread
8 communications for most requests and responses. 760 communications for most requests and responses.

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