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Comparing IO-AIO/Changes (file contents):
Revision 1.28 by root, Sun Aug 7 03:26:10 2005 UTC vs.
Revision 1.391 by root, Fri Dec 4 01:17:15 2020 UTC

1Revision history for IO::AIO 1Revision history for IO::AIO
2 2
31.1 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: FIDEDUPERANGE, file_ioctl.c
29TODO: mincore
30TODO: SOCK_CLOEXEc etc.
31TODO: unlinkat flags, linkat flags, statat, renameat2 flags
32TODO: https://kernelnewbies.org/Linux_4.11
33TODO: define useful rules for [[$wd, $path], $path] &c and implement them
34TODO: https://github.com/coreutils/coreutils/blob/master/src/stat.c maybe IO::AIO::FSID
35TODO: mlock2, MLOCK_ONFAULT
36TODO: dup3, pipe2, accept4
37TODO: dump config.log when automated testign and configure fails
38TODO: ns time resolution in utime
39TODO: statx
40TODO: pidfd_open/pidfd_send_signal (open/poll /proc?)
41TODO: aio_fchdir/chdir? emulate chdirat?
42TODO: rt-4.0.18-20109-1573826674-1229.126277-5-0@rt.cpan.org
43TODO: aio_splice, aio_tee
44TODO: copy_file_range
45TODO: write more abpout the thread model, maybe bump some defaults?
46TODO: io_uring, but it's so broken :/
47TODO: allow import of fds as aio_wd
48
494.73 Fri Dec 4 02:08:37 CET 2020
50 - def0.h was not uptodate, running into musl problems
51 (reported by B Fraser).
52 - IO::AIO::splice and IO::AIO::tee didn't properly return
53 64 bit values.
54 - added IO::AIO::accept4.
55 - add various F_SEAL related fcntl constants.
56 - removed experimental marker for fdlimit functions.
57 - fiemap now includes the last segment even if it overflows
58 the end offset, which is arguably the correct behaviour.
59
604.72 Wed Apr 3 04:56:03 CEST 2019
61 - (libeio) if fd 0 is available do not use it for aio_wd, as it
62 collides with IO::AIO::CWD.
63 - added IO::AIO::memfd_create.
64 - correctly include <sys/uio.h> in the vmsplice test.
65 - reduce codesize by ~7% on amd64 by declaring more functions
66 as noinline.
67 - documentation fixes and updates.
68 - experimental and undocumented preliminary support for synchronous statx.
69
704.71 Sun Mar 10 13:09:26 CET 2019
71 - due to an error in the linux manpages, the configure tests
72 for readahead, sync_file_range, splice etc. failed. This has been fixed.
73
744.7 Mon Mar 4 11:28:13 CET 2019
75 - majorly speed up scandir for the very special case of a non-POSIX
76 filesystem that nevertheless reports valid dt_type information.
77 The only known filesystem of this type is currently btrfs, which
78 didn't get it's act together to implement POSIX semantics in all
79 these years, and I am tired of waiting.
80 - add IO::AIO::MCL_ONFAULT for mlockall, add IO::AIO::mlockall.
81 - neither sys/mkdev.h nor sys/sysmacros.h were included, even when they
82 were detected by autoconf.
83
844.6 Sat Aug 25 21:58:36 CEST 2018
85 - add st_btime, st_btimesec, st_btimensec and st_gen accessors,
86 mostly for bsds which expose birthtime and st_gen members (netbsd, freebsd
87 but only st_gen on openbsd because they compiled their perl without support
88 for birthtimes).
89 - fix madvise and munlock to properly support negative offsets.
90 - allocate fd for the aio_close at boot time, to guarantee it working
91 later, rather than calling abort when it fails. also avoids
92 close-on-exec race issues after module load.
93 - #undef utime on win32, maybe this helps some reports of utime hangs.
94 - minor doc improvements.
95 - minor configure cleanups.
96 - use $Config{perllibs} instead of libs for configure. might help people
97 who didn't install all perl dependencies (might break things as well).
98
994.54 Tue Aug 14 13:54:48 CEST 2018
100 - include sys/mkdev.h or sys/sysmacros.h if available.
101 - further tweaks to configure invocation for systems requiring --rpath.
102 - no longer rely on custom paths on win32 platforms.
103 - try to work around buggy PAGESIZE macro on solaris.
104
1054.53 Tue Aug 14 11:27:50 CEST 2018
106 - add $Config{libs} to LIBS for configure, to work around systems
107 with broken library dependencies (... openbsd).
108
1094.52 Sun Aug 12 08:09:45 CEST 2018
110 - config.h.in was missing in distribution.
111
1124.51 Sun Aug 12 07:24:14 CEST 2018
113 - complete rework of the autoconf framework: IO::AIO now uses its own
114 config.h, separate from libeio, and tries to test the actual perl
115 environment, not the standard system environment.
116 - provide nanosecond-accracy stat time accessors for both perl and IO::AIO
117 stat functions.
118 - removed non-portable C++ syntax from eio.c.
119 - try to fix readdir tests on cygwin spuriously failing.
120
1214.5 Wed Aug 1 00:23:55 CEST 2018
122 - aio_mtouch touch all pages as requested, not just the first page in most cases.
123 - new function: IO::AIO::mremap, linux-specific mremap, with constants MREMAP_MAYMOVE
124 and MREMAP_FIXED.
125 - add O_ACCMODE.
126 - add (undocumented) MSG_CMSG_CLOEXEC and SOCK_CLOEXEC constants.
127
1284.4 Tue Feb 20 07:54:12 CET 2018
129 - new aio_slurp request.
130 - add (experimental) IO::AIO::eventfd and timerfd* function.
131 - add (experimental) IO::AIO::get_fdlimit and IO::AIO::min_fdlimit.
132 - point out that aio_copy overwrites existing files.
133 - removed filesystem magic number table from aio_statvfs docs as
134 statvfs doesn't actually return this info at all (statfs does).
135 - add a bunch of (mostly linux-specific) constants for use in ioctls
136 (see aio_ioctl docs).
137 - treescan now has a proper manpage and useful --help output.
138 - new option --sync in treescan, to sync everything in a subtree.
139 - changed default for aio_msync flags to MSYNC_SYNC.
140 - document offset/length behaviour of mprotect/madvise.
141 - support linux's renameat2 (via aio_rename2).
142 - add aio_rename2, an aio_rename with flags.
143 - add F_DUPPFD_CLOEXEC, F_OFD_[SG]ETLKW? constants.
144 - add FALLOC_FL_INSERT_RANGE, FALLOC_FL_UNSHARE_RANGE.
145 - (libeio) use posix_close if available.
146 - (libeio) internal close() calls no longer disturb errno.
147 - add IO:AIO::FALLOC_FL_UNSHARE.
148 - update schmorp.h for removal of USE_SOCKETS_AS_HANDLES
149 and better eventfd detection.
150
1514.34 Sun May 1 19:18:24 CEST 2016
152 - def0.h was not properly generated during previous release, causing
153 compile errors on various platforms.
154 - major/minor were accidentally switched (reported by Alexander Lishenyuk).
155 - removed duplicate definition of MAP_HUGETLB, that was found due to
156 a bug in Perl::Tidy (testcase by alaska332@gmail.com).
157 - added (untested!) aio_fcntl, aio_ioctl requests.
158 - (libeio) names set via prctl are truncated to 15 chars + nul, not 16,
159 as manpages-dev originally claimed.
160
1614.33 Mon Jan 18 12:50:10 CET 2016
162 - add IO::AIO::pipe2 function.
163 - added support for FALLOC_FL_COLLAPSE_RANGE and FALLOC_FL_ZERO_RANGE
164 constants.
165 - added support for O_TMPFILE and O_PATH constants.
166 - added support for MAP_FIXED, MAP_GROWSDOWN,MAP_32BIT, MAP_HUGETLB, MAP_STACK
167 consdtants, whether they can be sensibly used or not.
168 - use NO_INIT where applicable.
169 - update libecb.
170 - added stability canary support.
171 - updated linux super magic table to 4.3.3.
172
1734.32 Wed Feb 11 20:32:11 CET 2015
174 - replace off_t by STRLEN where appropriate, should not result in
175 user-visible changes.
176 - update ecb.h for C11 compatibility.
177
1784.31 Tue Jun 3 03:29:27 CEST 2014
179 - work around more 5.20 bugs. backwards compatibility my ass.
180
1814.3 Fri Apr 11 06:22:38 CEST 2014
182 - perl5porters broke Async::Interrupt, BDB, EV, IO::AIO, OpenCL
183 without warning by switching the meaning of USE_SOCKETS_AS_HANDLES
184 in 5.18. What's so attractive about giving a shit about backwards
185 compatibility - I will never understand.
186
1874.2 Sat Jan 25 01:13:14 CET 2014
188 - aio_group could corrupt memory because it didn't restore
189 the stack after req_submit.
190 - be more careful on (e.g. permission) errors in bin/treescan.
191 - work around changes in ExtUtils::MakeMaker.
192 - (libeio) implement aio_realpath for win32.
193 - (xthread) work around compile time bugs in ptw32.
194 - added IO::AIO::pipesize.
195 - (libecb) insignificant update.
196
1974.19 Sun Jan 6 12:47:26 CET 2013
198 - avoid endless loop in fiemap with some XFS files.
199 - in aio_rename and aio_rmdir, specialcase the case of [$wd, "."]
200 and call rename/rmdir instead of renameat/unlinkat.
201
2024.18 Thu Oct 11 07:01:26 CEST 2012
203 - fix unintended xthread_create by intentionalising it :)
204
2054.17 Thu Oct 11 05:19:47 CEST 2012
206 - rename aio_fallocate to aio_allocate, to match documentation.
207 - add list of linux fsid values to aio_statvfs docs.
208 - work around a bug in btrfs' FIEMAP ioctl implementation.
209 - work around AIX bug: statvfs.f_fsid is a struct, not unsigned long
210 as per unix spec.
211
2124.16 Tue Aug 14 05:39:03 CEST 2012
213 - aio_statvfs was wromgly marked for wd emulation, causing
214 it to malfunction for paths.
215 - fix a crash in aio_fiemap, when used on ranges without any
216 extents.
217 - work around linux kernel bug (at least in 3.2): kernel might
218 trash fiemap input arguments.
219 - work around linux kernel bug (at least in 3.2): kernel does not
220 set FIEMAP_EXTENT_LAST on last segment.
221 - work around linux kernel bug (at least in 3.2): kernel silently
222 truncates segment count if a file.
223 - make fh argument of IO::AIO::mmap optional, also add mmap/munmap
224 to quick overview.
225 - splice can corrupt data.
226 - (libeio) remove pread/pwrite emulation.
227 - do not grow mmaped scalars in aio_read.
228 - add FALLOC_FL_PUNCH_HOLE and document fallocate.
229 - provide pread/pwrite for win32, making it link again on native win32.
230
2314.15 Tue Apr 10 06:59:00 CEST 2012
232 - always include linux/types.h for fiemap, for compatibility to
233 ancient systems (Paul Howarth).
234 - experimental support for IO::AIO::splice and ::tee (no aio_...).
235 - provide SEEK_HOLE and SEEK_DATA, if available.
236 - work around (again!) an immensely stupid bug in RHEL, defining
237 autoconf macros in linux system headers (analysed by Paul Howarth).
238
2394.14 Sat Apr 7 02:45:18 CEST 2012
240 - fix stat structure usage on windows, which caused bogus stat results.
241 - (libeio) make readahead emulation behave more like actual readahead by never failing.
242 - new request aio_seek.
243 - new request aio_fiemap.
244 - autogenerate the #ifdef/#define 0 blocks for symbols we export.
245
2464.12 Fri Dec 30 08:51:25 CET 2011
247 - realpath would return a random value if the name was too long,
248 instead of -1.
249 - port to c89.
250
2514.11 Mon Oct 10 00:24:11 CEST 2011
252 - libeio didn't compile on !linux (Paul Howarth).
253
2544.1 Sun Oct 9 10:24:11 CEST 2011
255 - IO::AIO did access uninitialised memory on unsuccessful stats.
256 - (libeio) added syncfs syscall wrapper.
257 - (libeio) set thread name on linux (ps -L/Hcx, top, gdb).
258 - (libeio) support multiple indepenent working directories.
259 - applied speling corrections by Nicholas Bamber.
260 - tune treescan #threads and #outstanding requests a bit.
261 - reduce the number of file descriptors in use at any one time
262 in treescan, to avoid running out of them (and using too much ram).
263 - take advantage of working directoriy abstractions
264 in aio_scandir and treescan.
265 - reduce compiled size by ~10% by not inlining some key functionality.
266 - added --progress switch to treescan.
267
2684.0 Mon Jul 18 05:01:10 CEST 2011
269 - INCOMPATIBLE CHANGE: fork is no longer supported (indeed, it never was),
270 see FORK BEHAVIOUR in manpage for details.
271 - passes testsuite on win32 now and may actually work
272 (activestate 5.10.1 / MSVC6, YMMV).
273 - (libeio) fix a deadlock where a wakeup signal could be missed when
274 a timeout occured at the same time.
275 - (libeio) added realpath.
276 - (libeio) added fallocate.
277 - (libeio) disabling sendfile on darwin unfortunately broke the emulation.
278 - (libeio) do not acquire any locks when forking.
279 - (libeio) use fewer time() syscalls when waiting for new requests.
280
2813.93 Wed Jun 29 23:44:18 CEST 2011
282 - ECB.H WAS MISSING.
283
2843.92 Wed Jun 29 14:45:41 CEST 2011
285 - ecb.h was missing.
286
2873.91 Wed Jun 29 13:24:42 CEST 2011
288 - (libeio) work around a Linux (and likely FreeBSD and other
289 kernels) bug where sendfile would not transfer all the requested
290 bytes on large transfers, using a heuristic.
291 - buggy sendfile caused aio_move/copy to sometimes fail for big
292 files (fortunately it checks that the whole file has been
293 transferred...)
294 - use libecb for higher performance and higher portability.
295 - (libeio) disable sendfile on darwin, it's too broken.
296 - disable fork tests on !linux, as only linux supports mixing
297 pthread and fork in perl.
298 - document the fact that fork doesn't work anymore when using
299 this module, on anything !GNU/Linux.
300 - increase timeout in t/04_fork.t, as too many CPAN-tester setups
301 run on a 0.1MHz cpu. Or so.
302
3033.9 Fri May 27 02:43:47 CEST 2011
304 - (libeio) fix memory corruption in aio_readdirx for the flags
305 combination READDIR_STAT_ORDER | READDIR_DIRS_FIRST.
306 - add lots of newer POSIX and GNU/Linux-specific open
307 flags.
308
3093.8 Sun Mar 27 12:25:33 CEST 2011
310 - use nonstandard but maybe-working-on-bsd fork technique.
311 - support a max_idle value of 0.
312 - support setting of idle timeout value (IO::AIO::idle_timeout).
313
3143.72 Fri Feb 11 04:25:38 CET 2011
315 - use _POSIX_MEMLOCK_RANGE to detect mlock/munlock.
316 - aio_mknod always used a dev_t value of 0.
317 - new treescan option: --grep.
318 - add more S_IF macros, and major/minor/makedev "macros".
319
3203.71 Thu Dec 30 08:18:46 CET 2010
321 - the numerical result value passed to callbacks did not stringify
322 correctly, due to internal reuse and failure to reset the sv flags.
323 - actually test for posix_[mf]advise, as at least uClibc defines
324 _POSIX_ADVISORY_INFO without actually having any of the required
325 funcitonality. ugh.
326
3273.7 Mon Nov 1 23:00:34 CET 2010
328 - implement/add madvise, mmap, munmap, aio_mlockall, munlockall,
329 aio_mlock, munlock, msync and mtouch to @EXPORT_OK.
330 - document the sad state of affairs w.r.t. pthread on many bsds.
331 - do not enable mmap on systems without _POSIX_MAPPED_FILES
332 (openbsd 4.8).
333 - do not leak memory in IO::AIO::mmap when the scalar already
334 had string-data.
335 - add O_RDWR, O_APPEND and O_EXCL symbols and semi-document
336 them.
337 - cache the result IV, for a minor speedup in the common case.
338 - croak when an mmapped-scalar changes location, to detect
339 user-errors better.
340 - fix aio_readlink prototype.
341
3423.65 Wed Mar 31 02:45:05 CEST 2010
343 - actually use PATH_MAX instead of NAME_MAX for readlink, as to not
344 cut off long pathnames in aio_readlink (based on patch by
345 Rasmus Andersson).
346 - a double fork partially killed the event pipe (great testcase
347 by dormando). affects IO::AIO, BDB and Async::Interrupt.
348 - suck steve's dick and rename our symbols to avoid colliding
349 with nonstandard identifier spam on the broken os x pseudo-os.
350 affects IO::AIO and BDB.
351
3523.6 Mon Jan 11 00:43:39 CET 2010
353 - (libeio) more fixes for the freebsd/apple sendfile - broken by
354 manpage standards, but apparently correct accoridng to actual
355 kernel sources.
356 - add IO::AIO::mmap/munmap support.
357 - add IO::AIO::m(un)lockall support.
358 - clean up manpage.
359
3603.5 Thu Jan 7 21:25:04 CET 2010
361 - (liebio) fix freebsd sendfile (Vanilla Hsu).
362 - (libeio) also fix darwin sendfile that suffered from a similar bug.
363 - add aio_statvfs as interface to statvfs/fstatvfs.
364 - work around buggy symlink() on cygwin in the testsuite.
365 - wtf. freebsd-8.0 actually passes the testsuite! I knew
366 they could implement fork and semaphores one day! cheers!
367
3683.4 Sat Jan 2 15:13:04 CET 2010
369 - (libeio) max_poll_time was not properly converted to ticks.
370 - clarify cancel_subs description.
371 - IO::AIO::sendfile did not actually return the return value
372 from the sendfile call.
373 - implement aio_msync, aio_mtouch.
374 - (libeio) tentatively support darwin in sendfile.
375
3763.31 Thu Nov 12 02:14:29 CET 2009
377 - fix result status documentation of aio_copy, aio_move.
378 - speed up object creation considerably by avoiding
379 hash lookups.
380
3813.3 Wed Aug 5 13:52:58 CEST 2009
382 - use common::sense.
383 - use common schmorp.h header.
384 - allow integers (file descriptors) in addition to file handles.
385 - take advantage of linux' eventfd (but it seems slower on smp?).
386 - use poll not select on posix platforms.
387
3883.261 Wed Jul 1 10:11:51 CEST 2009
389 - more 0S X workarounds (patch by Tokuhiro Matsuno).
390
3913.26 Tue Jun 30 09:33:26 CEST 2009
392 - 0S X of course claims to be posix 2008 but lacks posix_fadvise.
393 try to work around this horribly broken OS in a somewhat hackish
394 way. might help other os's too.
395
3963.25 Sat Jun 27 05:18:26 CEST 2009
397 - added IO::AIO::fadvise and IO::AIO::sendfile.
398 - (libeio) replaced quicksort+insertion sort by a tuned radix
399 sort + insertion sort, resulting in comparable runtime (usually
400 faster) to the old version, but without any ill side effects on
401 degenerated (for quicksort) data.
402 - (libeio) correctly sort dirs by inodes if we have perfect type
403 knowledge and DIRS_FIRST is used.
404 - (libeio) internally the wrong DT_* constants were used, but no
405 known system has differing EIO_DT_*/DT_* values, so not an issue.
406 - removed a (harmless) assert that was left over on the code
407 but should not have been.
408 - use more correct types (change IO length from IV to VAL64,
409 which makes a difference on systems without 64 bit perls).
410
4113.23 Sat Jun 13 16:57:58 CEST 2009
412 - fix off-by-one bug in aio_readdir that was introduced in the
413 rushed 3.22 release.
414
4153.22 Sat Jun 13 15:32:40 CEST 2009
416 - speed up readdirx sort algorithm slightly.
417 - bin/treescan was missing from distro tarball.
418
4193.21 Fri Jun 12 18:45:53 CEST 2009
420 - new options --dirs and --files for treescan.
421 - install bin/treescan by default.
422 - (libeio) aio_readdir can now be cancelled while executing.
423 - fix a printf format string for 64 bit systems (could lead
424 to problems on big endian 64 bit systems).
425 - do not use qsort() but our own algorithm: glibc initialises
426 the whole locale and I/O subsystem inside qsort, causing
427 a stack overflow on 32 bit machines. The new sort uses much less
428 stack and is more than twice as fast in typical situations.
429
4303.2 Sun Jun 7 20:30:05 CEST 2009
431 - (libeio) pwrite emulation was even more flawed than intended and did
432 not restore the file offset.
433 - add aio_readdirx, which can return inode and filetype and sort
434 the names in various ways.
435 - unfortunately, utime, chmod, chown on an open file that has just
436 been written can easily block, which caused aio_copy to block the
437 process. no more!
438 - no longer rely on dst path in aio_copy when futime is available.
439
4403.19 Tue Apr 21 22:05:21 CEST 2009
441 - more perl 5.10 workarounds for aio_read and write.
442 - aio_write no longer modifies the sv (if possible).
443 - aio_read now works correctly with magic values.
444
4453.18 Sun Apr 19 21:17:32 CEST 2009
446 - better diagnostics when some aio_* functions get passed an illegal fh.
447 - try to avoid crashes due to incompatible 5.10 API changes. grmbl.
448
4493.17 Thu Nov 20 08:45:36 CET 2008
450 - (libeio) added aio_sync_file_range (untested).
451 - add aio_busy to @IO::AIO::AIO_REQ.
452
4533.16 Wed Oct 22 18:28:01 CEST 2008
454 - use SvREFCNT_inc instead of SvREFCNT_inc_NN in a non-speed critical
455 part to improve portability to perl 5.8 (reported by szymon).
456
4573.15 Mon Oct 13 00:39:55 CEST 2008
458 - automatic removal of feeders was broken.
459 - (libeio) use a more robust method to detect whether a feeder
460 has added something to the group or not.
461
4623.1 Thu Oct 2 13:34:40 CEST 2008
463 - pre-deref the passed callback object, for increased speed
464 and decreased memory usage.
465 - call on_next_submit callback even for aio_group - impact unknown,
466 but seems more correct.
467 - $req->cb now returns the original callback.
468 - (libeio) pass EIO_GROUP/aio_group requests through the queue without
469 requiring a thread switch.
470 - (libeio) status code of aio_futime and aio_utime was always passed 0.
471 - do some other ยต-optimisations.
472
4733.07 Sat Aug 2 16:06:13 CEST 2008
474 - do not include LIBS in autoconf tests.
475
4763.06 Tue Jul 15 12:41:32 CEST 2008
477 - move preadwritelock definition before it's first reference,
478 to make it compile again on broken platforms (they still exist)
479 or badly cofngiured perls (redhat...), reported by Rob Bloodgood.
480
4813.05 Thu Jun 19 23:23:52 CEST 2008
482 - work around perl overriding readdir etc. with thread-unsafe
483 (sic!) versions.
484
4853.04 Wed Jun 18 01:35:38 CEST 2008
486 - (libeio) fix eio_mknod, which confused it's arguments.
487 - (libeio) do not use readdir_r, as Ulrich Drepper pointed out that this
488 is stupid.
489 - (libeio) fix eio__readahead prototype, patch by Jost Krieger.
490 - (libeio) fix a bug that could potentially cause IO::AIO
491 not to get initialised properly.
492
4933.03 Thu May 29 05:33:30 CEST 2008
494 - (libeio) correctly call pthread_attr_destroy ().
495 - (libeio) work around broken bsd headers once more.
496 - reduce shared library size again by not including wrappers.
497 - max_outstanding could cause poll to enter a busy-waiting loop.
498 - document the new IO::AIO::poll_cb result value.
499
5003.02 Mon May 12 02:32:02 CEST 2008
501 - fix a memory leak on aio_readlink.
502 - bring back working fchmod.
503 - nop and busy now set result to 0.
504 - set errno to ENOMEM when allocation fails.
505
5063.01 Sun May 11 03:07:03 CEST 2008
507 - (libeio) make it compile on systems without readahead or readdir_r.
508 - (libeio) improve configure check for readahead availability.
509 - do not try to link against -lrt.
510 - use a separate configure script for IO::AIO (not the libeio one).
511
5123.0 Sun May 11 00:57:14 CEST 2008
513 - added bin/treescan to the distribution.
514 - switched to using libeio.
515 - LOTS OF INCOMPATIBLE CHANGES:
516 - remove signal functionality, it is not worth the effort.
517 - max_outstanding no longer returns the previous number of requests.
518 - poll_cb no longer returns number of requests.
519
5202.62 Sat Apr 26 13:59:33 CEST 2008
521 - port to solaris perls configured for old posix
522 (analysed by Jost Krieger).
523 - keep a reference to the perl filehandle object in aio_close,
524 so it doesn't get closed prematurely, leading to ugly races.
525
5262.61 Wed Apr 16 18:45:02 CEST 2008
527 - fix treescan output duplication and improve output ordering.
528 also display files given on the commandline.
529 - use a different algorithm for aio_close that is faster
530 and probably has even lower chances of blocking.
531 - do our own stack memory management for threads - linux
532 allocates outrageous amounts of VM (not so bad unless you
533 use mlockall...), which severely limits the number of threads
534 on 32-bit arches: stack size is the larger of PTHREAD_STACK_MIN
535 and 4096 * sizeof (long) (usually this is 16..64k).
536
5372.6 Sun Mar 30 08:28:11 CEST 2008
538 - added aio_sync.
539 - added aio_pathsync.
540 - fix prototypes of (void) functions.
541
5422.51 Sat Oct 6 16:04:54 CEST 2007
543 - perlio isn't generally threadsafe, so aio_close could not work reliably.
544 aio_close now tries a safe hack that might not be that asynchronous
545 (see the manpage for details).
546 - discard callback return values as to not grow the stack endlessly
547 when poll_cb handles many requests without returning.
548 - minor code cleanups.
549
5502.5 Thu Oct 4 14:49:08 CEST 2007
551 - replaced _fd2fh with faster xs code.
552 - aio_close will now try to do "the right thing" and thus might
553 work sensibly for the very first time.
554
5552.41 Mon Sep 24 21:28:21 CEST 2007
556 - after fork, invest some work to make sure that the poll_fileno
557 stays stable (by dup2'ing the new fd over the old one), to make
558 it easier for programs/libs that don't control their forking
559 behaviour and cannot recreate their watchers.
560
5612.4 Sun Aug 5 18:44:22 CEST 2007
562 - add aio_truncate, aio_chmod, aio_chown, aio_utime (linux
563 successfully demonstrated that you can block on futimes...).
564 - allow undef as fileoffset for aio_read/write and use read/write(2)
565 internally (useful for sockets or O_APPEND handles).
566 - allow undef for length in aio_write.
567 - negative dataoffsets work as expected now in aio_read/aio_write.
568 - use NV instead of UV for 32 bit perls and file offsets, as NVs
569 have a larger range then.
570 - shared code between BDB and IO::AIO.
571 - aio_busy was completely broken. now fixed.
572 - readahead emulation now returns something.
573 - correctly set errno to ENOSYS on unimplemented functions
574 (should never happen, though).
575 - large changes to make it partially compile and run on win32,
576 but win32 lacks too much functionality, and perl overrides way
577 too many functions with crashing versions.
578
5792.33 Tue Jan 23 23:55:41 CET 2007
580 - fix install path (Andreas J. Koenig).
581
5822.32 Mon Jan 22 16:56:23 CET 2007
583 - added aio_rmtree.
584 - wow, aio_mkdir was missing.
585 - aio_load did return undef on error, not -1.
586 - use prefixexp not prefix in autoconf.pm
587 (suggested by ... rt.cpan.org unreachable).
588 - avoid installing autoconf.pm.
589
5902.31 Sat Jan 6 03:46:02 CET 2007
591 - added aio_load.
592
5932.3 Sat Dec 23 05:48:07 CET 2006
594 - fix off-by-one bug in aio_read, causing memory corruption
595 or crashes.
596
5972.21 Fri Dec 22 05:03:38 CET 2006
598 - minor doc updates.
599 - minor cleanups.
600 - IO::AIO::poll returns request count.
601 - undocumented and unfinished async-signal-reporting.
602
6032.2 Tue Oct 31 00:31:00 CET 2006
604 - minor doc updates.
605 - added aio_readlink.
606 - properly zero-terminate aio_read buffer.
607 - fix aio_read/write with nonzero dataoffset.
608 - reduced size of aio request structure.
609 - better diagnostics when pathnames etc. are not byte-encoded;
610 do not leak request in that case, either.
611
6122.1 Sun Oct 29 02:01:57 CET 2006
613 - INCOMPATIBLE CHANGE: replace IO::AIO::poll_some by
614 IO::AIO::max_poll_reqs and IO::AIO::max_poll_time.
615 - fix a bug in aio_move where it would fail everytime
616 it would have to copy files manually.
617 - doc updates.
618 - start threads only on (very low) demand.
619 - end superfluous threads automatically after 10s idling.
620 - add IO::AIO::max_idle to control this.
621 - some tuning applied to random places.
622 - add aio_mknod.
623
6242.0 Thu Oct 26 18:27:58 CEST 2006
625 - minor incompatibility: max_outstanding semantics have changed.
626 - major rewrite, consider all functionality EXPERIMENTAL.
627 - aio requests can be cancelled.
628 - callbacks can be (re-)set later.
629 - aio requests can choose between 9 priorities.
630 - add aio_group: aio requests can be grouped
631 into composite requests.
632 - generator interface for groups.
633 - add IO::AIO::poll_some.
634 - major documentation improvements.
635 - very minor bugfixes.
636 - add aio_nop for dummy requests.
637 - add aio_busy mainly for benchmarking and debugging.
638 - use "fast" mutexes on linux.
639 - use dynamic (and larger) buffers instead of
640 putting them onto the stack.
641 - optimise x86 and amd64 a bit.
642 - better error checking when ENOMEM.
643 - hopefully fix mem and dirp leaks on fork.
644 - warn about broken perl malloc.
645 - compiles on cygwin (but pread is broken on cygwin
646 which is not detected by autoconf, so you have to
647 edit autoconf/config.h yourself to enable emulation).
648
6491.8 Sat Jun 24 22:20:44 CEST 2006
650 - add and/or document aio_rename, aio_link, aio_symlink and aio_move.
651
6521.73 Wed Mar 1 22:49:32 CET 2006
653 - codename "jost"
654 - AIX/Solaris(?) aren't being helpful again, hardcode a value
655 for NAME_MAX and drive with your eyes closed (reported by
656 wcooley@nakedape.cc).
657
6581.72 Thu Feb 2 00:40:44 CET 2006
659 - another minor bug in aio_scandir, again, the callback was called
660 twice when the directory can't be stat'ed.
661
6621.71 Mon Dec 26 20:20:03 CET 2005
663 - grr, another minor bug in aio_scandir, this time resulting
664 in a runtime error.
665
6661.7 Mon Dec 26 19:29:48 CET 2005
667 - aio_scandir errornously called callback twice in some cases.
668 - added AnyEvent example.
669
6701.61 Wed Sep 7 19:40:42 CEST 2005
671 - no longer include $Config{libs}, as distros include too much
672 garbage in there that is not installed on typical systems
673 (for example, debian links perl against -lgdbm and many more
674 libraries despite perl not needing it, slowing down startup and
675 wasting memory).
676
6771.6 Tue Aug 30 17:44:44 CEST 2005
678 - added aio_readdir, aio_scandir.
679 - added aio_sendfile, including sendfile emulation when sendfile
680 isn't available. Linux, FreeBSD and HP-UX might work (sendfilev
681 support is unavailable on my solaris 8 machine, but preliminary
682 code is there. What's lacking is configury stuff and testing...).
683
6841.5 Sat Aug 20 02:32:19 CEST 2005
685 - create the aio threads on demand only (good after forking).
686 - somebody nagged about C89 compatibility, so this release should
687 be C89 compatible, but no guarantees for future ones.
688 - abort when the configure script fails.
689
6901.4 Wed Aug 17 08:07:27 CEST 2005
691 - forgot to recreate the pipe after forking, this could cause
692 deadlocks.
693
6941.3 Wed Aug 17 07:25:54 CEST 2005
695 - properly propagate exceptions from callbacks, instead of silently
696 eating them.
697 - use a different fork algorithm that avoids recursive callback
698 invocations and reduces fork latency in busy processes.
699 - fix a bug where the buffer scalar in aio_read got assigned the wrong
700 length after reading.
701 - fix a bug where the child would process some outstanding requests
702 from the parent.
703 - make a copy of the callback scalar, to avoid some very uncommon
704 (but valid) usages where the callback scalar changes.
705 - the callback was never freed in aio_read/aio_write.
706 - aio_read/aio_write will now set the readonly flag on the data
707 scalar for better error reporting.
708
7091.2 Wed Aug 17 01:22:58 CEST 2005
710 - verified on cygwin, linux/amd64+ia32+alpha, solaris.
711 - use SvPVbyte for filenames now. You *need* to encode your strings to
712 the external filename encoding first.
713 - fix the bug where filehandles could leak (again).
714 - clarify freebsd situation: make it work and tell me how, or go away
715 with your underdocumented, broken and outdated OS.
716 - fork'ing should now be officially supported (where linux and
717 posix contradict each other, I followed posix).
718 - only call read() once per poll, not twice (speedup).
719 - new functions: aio_rmdir, aio_symlink.
720 - force callback arguments to be undef or a reference, for better
721 error catching.
722
7231.1 Sun Aug 7 05:27:23 CEST 2005
4 - added configure script to detect availability of some calls. 724 - added configure script to detect availability of some calls.
5 (imperfect, as we cannot detect things like -lrt due to missing 725 (imperfect, as we cannot detect things like -lrt due to missing
6 feedback yet). 726 feedback yet).
7 - emulate fdatasync via fsync, pread/pwrite via unsafe read/write 727 - emulate fdatasync via fsync, pread/pwrite via unsafe read/write
8 and readahead via manual reading on platforms lacking those. 728 and readahead via manual reading on platforms lacking those.

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