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Comparing IO-AIO/Changes (file contents):
Revision 1.125 by root, Fri Jun 1 14:40:01 2007 UTC vs.
Revision 1.407 by root, Sun Sep 25 16:30:51 2022 UTC

1Revision history for IO::AIO 1Revision history for IO::AIO
2 2
3TODO: better autoconf.pm that can return LIBS etc. 3TODO: scandir - some dirs mostly contain subdirs - invert logic?
4TODO: aio_cptree/mvtree 4TODO: aio_cptree/mvtree
5TODO: reduce condvar fairness: schedule hot-cache-threads first?
6TODO: fix setsig
7TODO: splice/tee/vmsplice/sync_file_range? (http://kerneltrap.org/node/6505 http://lwn.net/Articles/178199/) 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: ioprio_get/set
8 22
92.4 23TODO: rewrite rmtree et al. to support working directories (also speed them up)
10 - fix aio_busy w.r.t. fractional delays. 24TODO: maybe IO::AIO leaks fds when requests are cancelled? maybe initialise result to -1?
11 - add aio_chmod, aio_chown, aio_utime (linux successfully demonstrated 25TODO: aio_wd should use O_PATH on linux, due to lacking O_SEARCH (http://comments.gmane.org/gmane.linux.file-systems/33611)
26 http://www.openwall.com/lists/musl/2013/02/23/4
27TODO: FIDEDUPERANGE, file_ioctl.c
28TODO: mincore
29TODO: SOCK_CLOEXEc etc.
30TODO: unlinkat flags, linkat flags, statat, renameat2 flags
31TODO: https://kernelnewbies.org/Linux_4.11
32TODO: define useful rules for [[$wd, $path], $path] &c and implement them
33TODO: https://github.com/coreutils/coreutils/blob/master/src/stat.c maybe IO::AIO::FSID
34TODO: mlock2, MLOCK_ONFAULT
35TODO: dup3, pipe2, accept4
36TODO: dump config.log when automated testign and configure fails
37TODO: ns time resolution in utime
38TODO: statx
39TODO: aio_fchdir/chdir? emulate chdirat?
40TODO: rt-4.0.18-20109-1573826674-1229.126277-5-0@rt.cpan.org
41TODO: aio_splice, aio_tee
42TODO: copy_file_range
43TODO: write more abpout the thread model, maybe bump some defaults?
44TODO: io_uring, but it's so broken :/
45TODO: allow import of fds as aio_wd
46TODO: close_range
47TODO: move_mount, open_tree, fsmount, fspick, fsconfig, fsopen https://lwn.net/Articles/759499/
48
494.79 Sun 25 Sep 2022 18:25:53 CEST
50 - the autoconf result of the mount check was not used, so it failed to
51 compile on most systems (reported by crackoff@tutanota.com).
52 - work around fedora not having a working C compiler setup by design
53 (reported by Paul Howarth).
54
554.78 Tue 06 Sep 2022 12:54:43 CEST
56 - add IO::AIO::mount and IO::AIO::umount.
57 - add a bunch of symbols from sys/mount.h.
58
594.77 Mon 05 Sep 2022 02:03:38 CEST
60 - add MFD_HUGETLB_2MB and MFD_HUGETLB_1GB constants.
61 - add fexecve.
62 - add lots of missing functions to @EXPORT_OK.
63
644.76 Tue Jul 27 20:45:01 CEST 2021
65 - add autoconf test for siginfo_t, which is, of course, not
66 available on windows (reported by Peter Petky).
67 - disable syscalls on solaris, as perl seems to provide an
68 incompatible syscall prototype that clashes with sys/syscall.h.
69 - add MAP_FIXED_NOREPLACE, MAP_SHARED_VALIDATE, MAP_SYNC and
70 MAP_UNINITIALIZED.
71
724.75 Wed Dec 30 08:44:55 CET 2020
73 - removed leftover debug output from treescan.
74 - added (but not documented) waitid-P_*, FSPICK_*, FSOPEN_*,
75 FSCONFIG_*, MOUNT_ATTR_* constants.
76
774.74 Tue Dec 29 16:19:28 CET 2020
78 - added pidfd_open, pidfd_getfd and pidfd_send_signal functions.
79 - rework bin/treescan to avoid recursion. This fixes two bugs
80 where a deep directory traversal or a lot of command line
81 arguments could cause it to crash.
82 - added (but not documented) open_tree, AT_* and move_mount flags.
83 - support defining syscall numbers in gendef0.
84
854.73 Fri Dec 4 02:08:37 CET 2020
86 - def0.h was not uptodate, running into musl problems
87 (reported by B Fraser).
88 - IO::AIO::splice and IO::AIO::tee didn't properly return
89 64 bit values.
90 - added IO::AIO::accept4.
91 - add various F_SEAL related fcntl constants.
92 - removed experimental marker for fdlimit functions.
93 - fiemap now includes the last segment even if it overflows
94 the end offset, which is arguably the correct behaviour.
95
964.72 Wed Apr 3 04:56:03 CEST 2019
97 - (libeio) if fd 0 is available do not use it for aio_wd, as it
98 collides with IO::AIO::CWD.
99 - added IO::AIO::memfd_create.
100 - correctly include <sys/uio.h> in the vmsplice test.
101 - reduce codesize by ~7% on amd64 by declaring more functions
102 as noinline.
103 - documentation fixes and updates.
104 - experimental and undocumented preliminary support for synchronous statx.
105
1064.71 Sun Mar 10 13:09:26 CET 2019
107 - due to an error in the linux manpages, the configure tests
108 for readahead, sync_file_range, splice etc. failed. This has been fixed.
109
1104.7 Mon Mar 4 11:28:13 CET 2019
111 - majorly speed up scandir for the very special case of a non-POSIX
112 filesystem that nevertheless reports valid dt_type information.
113 The only known filesystem of this type is currently btrfs, which
114 didn't get it's act together to implement POSIX semantics in all
115 these years, and I am tired of waiting.
116 - add IO::AIO::MCL_ONFAULT for mlockall, add IO::AIO::mlockall.
117 - neither sys/mkdev.h nor sys/sysmacros.h were included, even when they
118 were detected by autoconf.
119
1204.6 Sat Aug 25 21:58:36 CEST 2018
121 - add st_btime, st_btimesec, st_btimensec and st_gen accessors,
122 mostly for bsds which expose birthtime and st_gen members (netbsd, freebsd
123 but only st_gen on openbsd because they compiled their perl without support
124 for birthtimes).
125 - fix madvise and munlock to properly support negative offsets.
126 - allocate fd for the aio_close at boot time, to guarantee it working
127 later, rather than calling abort when it fails. also avoids
128 close-on-exec race issues after module load.
129 - #undef utime on win32, maybe this helps some reports of utime hangs.
130 - minor doc improvements.
131 - minor configure cleanups.
132 - use $Config{perllibs} instead of libs for configure. might help people
133 who didn't install all perl dependencies (might break things as well).
134
1354.54 Tue Aug 14 13:54:48 CEST 2018
136 - include sys/mkdev.h or sys/sysmacros.h if available.
137 - further tweaks to configure invocation for systems requiring --rpath.
138 - no longer rely on custom paths on win32 platforms.
139 - try to work around buggy PAGESIZE macro on solaris.
140
1414.53 Tue Aug 14 11:27:50 CEST 2018
142 - add $Config{libs} to LIBS for configure, to work around systems
143 with broken library dependencies (... openbsd).
144
1454.52 Sun Aug 12 08:09:45 CEST 2018
146 - config.h.in was missing in distribution.
147
1484.51 Sun Aug 12 07:24:14 CEST 2018
149 - complete rework of the autoconf framework: IO::AIO now uses its own
150 config.h, separate from libeio, and tries to test the actual perl
151 environment, not the standard system environment.
152 - provide nanosecond-accracy stat time accessors for both perl and IO::AIO
153 stat functions.
154 - removed non-portable C++ syntax from eio.c.
155 - try to fix readdir tests on cygwin spuriously failing.
156
1574.5 Wed Aug 1 00:23:55 CEST 2018
158 - aio_mtouch touch all pages as requested, not just the first page in most cases.
159 - new function: IO::AIO::mremap, linux-specific mremap, with constants MREMAP_MAYMOVE
160 and MREMAP_FIXED.
161 - add O_ACCMODE.
162 - add (undocumented) MSG_CMSG_CLOEXEC and SOCK_CLOEXEC constants.
163
1644.4 Tue Feb 20 07:54:12 CET 2018
165 - new aio_slurp request.
166 - add (experimental) IO::AIO::eventfd and timerfd* function.
167 - add (experimental) IO::AIO::get_fdlimit and IO::AIO::min_fdlimit.
168 - point out that aio_copy overwrites existing files.
169 - removed filesystem magic number table from aio_statvfs docs as
170 statvfs doesn't actually return this info at all (statfs does).
171 - add a bunch of (mostly linux-specific) constants for use in ioctls
172 (see aio_ioctl docs).
173 - treescan now has a proper manpage and useful --help output.
174 - new option --sync in treescan, to sync everything in a subtree.
175 - changed default for aio_msync flags to MSYNC_SYNC.
176 - document offset/length behaviour of mprotect/madvise.
177 - support linux's renameat2 (via aio_rename2).
178 - add aio_rename2, an aio_rename with flags.
179 - add F_DUPPFD_CLOEXEC, F_OFD_[SG]ETLKW? constants.
180 - add FALLOC_FL_INSERT_RANGE, FALLOC_FL_UNSHARE_RANGE.
181 - (libeio) use posix_close if available.
182 - (libeio) internal close() calls no longer disturb errno.
183 - add IO:AIO::FALLOC_FL_UNSHARE.
184 - update schmorp.h for removal of USE_SOCKETS_AS_HANDLES
185 and better eventfd detection.
186
1874.34 Sun May 1 19:18:24 CEST 2016
188 - def0.h was not properly generated during previous release, causing
189 compile errors on various platforms.
190 - major/minor were accidentally switched (reported by Alexander Lishenyuk).
191 - removed duplicate definition of MAP_HUGETLB, that was found due to
192 a bug in Perl::Tidy (testcase by alaska332@gmail.com).
193 - added (untested!) aio_fcntl, aio_ioctl requests.
194 - (libeio) names set via prctl are truncated to 15 chars + nul, not 16,
195 as manpages-dev originally claimed.
196
1974.33 Mon Jan 18 12:50:10 CET 2016
198 - add IO::AIO::pipe2 function.
199 - added support for FALLOC_FL_COLLAPSE_RANGE and FALLOC_FL_ZERO_RANGE
200 constants.
201 - added support for O_TMPFILE and O_PATH constants.
202 - added support for MAP_FIXED, MAP_GROWSDOWN,MAP_32BIT, MAP_HUGETLB, MAP_STACK
203 consdtants, whether they can be sensibly used or not.
204 - use NO_INIT where applicable.
205 - update libecb.
206 - added stability canary support.
207 - updated linux super magic table to 4.3.3.
208
2094.32 Wed Feb 11 20:32:11 CET 2015
210 - replace off_t by STRLEN where appropriate, should not result in
211 user-visible changes.
212 - update ecb.h for C11 compatibility.
213
2144.31 Tue Jun 3 03:29:27 CEST 2014
215 - work around more 5.20 bugs. backwards compatibility my ass.
216
2174.3 Fri Apr 11 06:22:38 CEST 2014
218 - perl5porters broke Async::Interrupt, BDB, EV, IO::AIO, OpenCL
219 without warning by switching the meaning of USE_SOCKETS_AS_HANDLES
220 in 5.18. What's so attractive about giving a shit about backwards
221 compatibility - I will never understand.
222
2234.2 Sat Jan 25 01:13:14 CET 2014
224 - aio_group could corrupt memory because it didn't restore
225 the stack after req_submit.
226 - be more careful on (e.g. permission) errors in bin/treescan.
227 - work around changes in ExtUtils::MakeMaker.
228 - (libeio) implement aio_realpath for win32.
229 - (xthread) work around compile time bugs in ptw32.
230 - added IO::AIO::pipesize.
231 - (libecb) insignificant update.
232
2334.19 Sun Jan 6 12:47:26 CET 2013
234 - avoid endless loop in fiemap with some XFS files.
235 - in aio_rename and aio_rmdir, specialcase the case of [$wd, "."]
236 and call rename/rmdir instead of renameat/unlinkat.
237
2384.18 Thu Oct 11 07:01:26 CEST 2012
239 - fix unintended xthread_create by intentionalising it :)
240
2414.17 Thu Oct 11 05:19:47 CEST 2012
242 - rename aio_fallocate to aio_allocate, to match documentation.
243 - add list of linux fsid values to aio_statvfs docs.
244 - work around a bug in btrfs' FIEMAP ioctl implementation.
245 - work around AIX bug: statvfs.f_fsid is a struct, not unsigned long
246 as per unix spec.
247
2484.16 Tue Aug 14 05:39:03 CEST 2012
249 - aio_statvfs was wromgly marked for wd emulation, causing
250 it to malfunction for paths.
251 - fix a crash in aio_fiemap, when used on ranges without any
252 extents.
253 - work around linux kernel bug (at least in 3.2): kernel might
254 trash fiemap input arguments.
255 - work around linux kernel bug (at least in 3.2): kernel does not
256 set FIEMAP_EXTENT_LAST on last segment.
257 - work around linux kernel bug (at least in 3.2): kernel silently
258 truncates segment count if a file.
259 - make fh argument of IO::AIO::mmap optional, also add mmap/munmap
260 to quick overview.
261 - splice can corrupt data.
262 - (libeio) remove pread/pwrite emulation.
263 - do not grow mmaped scalars in aio_read.
264 - add FALLOC_FL_PUNCH_HOLE and document fallocate.
265 - provide pread/pwrite for win32, making it link again on native win32.
266
2674.15 Tue Apr 10 06:59:00 CEST 2012
268 - always include linux/types.h for fiemap, for compatibility to
269 ancient systems (Paul Howarth).
270 - experimental support for IO::AIO::splice and ::tee (no aio_...).
271 - provide SEEK_HOLE and SEEK_DATA, if available.
272 - work around (again!) an immensely stupid bug in RHEL, defining
273 autoconf macros in linux system headers (analysed by Paul Howarth).
274
2754.14 Sat Apr 7 02:45:18 CEST 2012
276 - fix stat structure usage on windows, which caused bogus stat results.
277 - (libeio) make readahead emulation behave more like actual readahead by never failing.
278 - new request aio_seek.
279 - new request aio_fiemap.
280 - autogenerate the #ifdef/#define 0 blocks for symbols we export.
281
2824.12 Fri Dec 30 08:51:25 CET 2011
283 - realpath would return a random value if the name was too long,
284 instead of -1.
285 - port to c89.
286
2874.11 Mon Oct 10 00:24:11 CEST 2011
288 - libeio didn't compile on !linux (Paul Howarth).
289
2904.1 Sun Oct 9 10:24:11 CEST 2011
291 - IO::AIO did access uninitialised memory on unsuccessful stats.
292 - (libeio) added syncfs syscall wrapper.
293 - (libeio) set thread name on linux (ps -L/Hcx, top, gdb).
294 - (libeio) support multiple indepenent working directories.
295 - applied speling corrections by Nicholas Bamber.
296 - tune treescan #threads and #outstanding requests a bit.
297 - reduce the number of file descriptors in use at any one time
298 in treescan, to avoid running out of them (and using too much ram).
299 - take advantage of working directoriy abstractions
300 in aio_scandir and treescan.
301 - reduce compiled size by ~10% by not inlining some key functionality.
302 - added --progress switch to treescan.
303
3044.0 Mon Jul 18 05:01:10 CEST 2011
305 - INCOMPATIBLE CHANGE: fork is no longer supported (indeed, it never was),
306 see FORK BEHAVIOUR in manpage for details.
307 - passes testsuite on win32 now and may actually work
308 (activestate 5.10.1 / MSVC6, YMMV).
309 - (libeio) fix a deadlock where a wakeup signal could be missed when
310 a timeout occured at the same time.
311 - (libeio) added realpath.
312 - (libeio) added fallocate.
313 - (libeio) disabling sendfile on darwin unfortunately broke the emulation.
314 - (libeio) do not acquire any locks when forking.
315 - (libeio) use fewer time() syscalls when waiting for new requests.
316
3173.93 Wed Jun 29 23:44:18 CEST 2011
318 - ECB.H WAS MISSING.
319
3203.92 Wed Jun 29 14:45:41 CEST 2011
321 - ecb.h was missing.
322
3233.91 Wed Jun 29 13:24:42 CEST 2011
324 - (libeio) work around a Linux (and likely FreeBSD and other
325 kernels) bug where sendfile would not transfer all the requested
326 bytes on large transfers, using a heuristic.
327 - buggy sendfile caused aio_move/copy to sometimes fail for big
328 files (fortunately it checks that the whole file has been
329 transferred...)
330 - use libecb for higher performance and higher portability.
331 - (libeio) disable sendfile on darwin, it's too broken.
332 - disable fork tests on !linux, as only linux supports mixing
333 pthread and fork in perl.
334 - document the fact that fork doesn't work anymore when using
335 this module, on anything !GNU/Linux.
336 - increase timeout in t/04_fork.t, as too many CPAN-tester setups
337 run on a 0.1MHz cpu. Or so.
338
3393.9 Fri May 27 02:43:47 CEST 2011
340 - (libeio) fix memory corruption in aio_readdirx for the flags
341 combination READDIR_STAT_ORDER | READDIR_DIRS_FIRST.
342 - add lots of newer POSIX and GNU/Linux-specific open
343 flags.
344
3453.8 Sun Mar 27 12:25:33 CEST 2011
346 - use nonstandard but maybe-working-on-bsd fork technique.
347 - support a max_idle value of 0.
348 - support setting of idle timeout value (IO::AIO::idle_timeout).
349
3503.72 Fri Feb 11 04:25:38 CET 2011
351 - use _POSIX_MEMLOCK_RANGE to detect mlock/munlock.
352 - aio_mknod always used a dev_t value of 0.
353 - new treescan option: --grep.
354 - add more S_IF macros, and major/minor/makedev "macros".
355
3563.71 Thu Dec 30 08:18:46 CET 2010
357 - the numerical result value passed to callbacks did not stringify
358 correctly, due to internal reuse and failure to reset the sv flags.
359 - actually test for posix_[mf]advise, as at least uClibc defines
360 _POSIX_ADVISORY_INFO without actually having any of the required
361 funcitonality. ugh.
362
3633.7 Mon Nov 1 23:00:34 CET 2010
364 - implement/add madvise, mmap, munmap, aio_mlockall, munlockall,
365 aio_mlock, munlock, msync and mtouch to @EXPORT_OK.
366 - document the sad state of affairs w.r.t. pthread on many bsds.
367 - do not enable mmap on systems without _POSIX_MAPPED_FILES
368 (openbsd 4.8).
369 - do not leak memory in IO::AIO::mmap when the scalar already
370 had string-data.
371 - add O_RDWR, O_APPEND and O_EXCL symbols and semi-document
372 them.
373 - cache the result IV, for a minor speedup in the common case.
374 - croak when an mmapped-scalar changes location, to detect
375 user-errors better.
376 - fix aio_readlink prototype.
377
3783.65 Wed Mar 31 02:45:05 CEST 2010
379 - actually use PATH_MAX instead of NAME_MAX for readlink, as to not
380 cut off long pathnames in aio_readlink (based on patch by
381 Rasmus Andersson).
382 - a double fork partially killed the event pipe (great testcase
383 by dormando). affects IO::AIO, BDB and Async::Interrupt.
384 - suck steve's dick and rename our symbols to avoid colliding
385 with nonstandard identifier spam on the broken os x pseudo-os.
386 affects IO::AIO and BDB.
387
3883.6 Mon Jan 11 00:43:39 CET 2010
389 - (libeio) more fixes for the freebsd/apple sendfile - broken by
390 manpage standards, but apparently correct accoridng to actual
391 kernel sources.
392 - add IO::AIO::mmap/munmap support.
393 - add IO::AIO::m(un)lockall support.
394 - clean up manpage.
395
3963.5 Thu Jan 7 21:25:04 CET 2010
397 - (liebio) fix freebsd sendfile (Vanilla Hsu).
398 - (libeio) also fix darwin sendfile that suffered from a similar bug.
399 - add aio_statvfs as interface to statvfs/fstatvfs.
400 - work around buggy symlink() on cygwin in the testsuite.
401 - wtf. freebsd-8.0 actually passes the testsuite! I knew
402 they could implement fork and semaphores one day! cheers!
403
4043.4 Sat Jan 2 15:13:04 CET 2010
405 - (libeio) max_poll_time was not properly converted to ticks.
406 - clarify cancel_subs description.
407 - IO::AIO::sendfile did not actually return the return value
408 from the sendfile call.
409 - implement aio_msync, aio_mtouch.
410 - (libeio) tentatively support darwin in sendfile.
411
4123.31 Thu Nov 12 02:14:29 CET 2009
413 - fix result status documentation of aio_copy, aio_move.
414 - speed up object creation considerably by avoiding
415 hash lookups.
416
4173.3 Wed Aug 5 13:52:58 CEST 2009
418 - use common::sense.
419 - use common schmorp.h header.
420 - allow integers (file descriptors) in addition to file handles.
421 - take advantage of linux' eventfd (but it seems slower on smp?).
422 - use poll not select on posix platforms.
423
4243.261 Wed Jul 1 10:11:51 CEST 2009
425 - more 0S X workarounds (patch by Tokuhiro Matsuno).
426
4273.26 Tue Jun 30 09:33:26 CEST 2009
428 - 0S X of course claims to be posix 2008 but lacks posix_fadvise.
429 try to work around this horribly broken OS in a somewhat hackish
430 way. might help other os's too.
431
4323.25 Sat Jun 27 05:18:26 CEST 2009
433 - added IO::AIO::fadvise and IO::AIO::sendfile.
434 - (libeio) replaced quicksort+insertion sort by a tuned radix
435 sort + insertion sort, resulting in comparable runtime (usually
436 faster) to the old version, but without any ill side effects on
437 degenerated (for quicksort) data.
438 - (libeio) correctly sort dirs by inodes if we have perfect type
439 knowledge and DIRS_FIRST is used.
440 - (libeio) internally the wrong DT_* constants were used, but no
441 known system has differing EIO_DT_*/DT_* values, so not an issue.
442 - removed a (harmless) assert that was left over on the code
443 but should not have been.
444 - use more correct types (change IO length from IV to VAL64,
445 which makes a difference on systems without 64 bit perls).
446
4473.23 Sat Jun 13 16:57:58 CEST 2009
448 - fix off-by-one bug in aio_readdir that was introduced in the
449 rushed 3.22 release.
450
4513.22 Sat Jun 13 15:32:40 CEST 2009
452 - speed up readdirx sort algorithm slightly.
453 - bin/treescan was missing from distro tarball.
454
4553.21 Fri Jun 12 18:45:53 CEST 2009
456 - new options --dirs and --files for treescan.
457 - install bin/treescan by default.
458 - (libeio) aio_readdir can now be cancelled while executing.
459 - fix a printf format string for 64 bit systems (could lead
460 to problems on big endian 64 bit systems).
461 - do not use qsort() but our own algorithm: glibc initialises
462 the whole locale and I/O subsystem inside qsort, causing
463 a stack overflow on 32 bit machines. The new sort uses much less
464 stack and is more than twice as fast in typical situations.
465
4663.2 Sun Jun 7 20:30:05 CEST 2009
467 - (libeio) pwrite emulation was even more flawed than intended and did
468 not restore the file offset.
469 - add aio_readdirx, which can return inode and filetype and sort
470 the names in various ways.
471 - unfortunately, utime, chmod, chown on an open file that has just
472 been written can easily block, which caused aio_copy to block the
473 process. no more!
474 - no longer rely on dst path in aio_copy when futime is available.
475
4763.19 Tue Apr 21 22:05:21 CEST 2009
477 - more perl 5.10 workarounds for aio_read and write.
478 - aio_write no longer modifies the sv (if possible).
479 - aio_read now works correctly with magic values.
480
4813.18 Sun Apr 19 21:17:32 CEST 2009
482 - better diagnostics when some aio_* functions get passed an illegal fh.
483 - try to avoid crashes due to incompatible 5.10 API changes. grmbl.
484
4853.17 Thu Nov 20 08:45:36 CET 2008
486 - (libeio) added aio_sync_file_range (untested).
487 - add aio_busy to @IO::AIO::AIO_REQ.
488
4893.16 Wed Oct 22 18:28:01 CEST 2008
490 - use SvREFCNT_inc instead of SvREFCNT_inc_NN in a non-speed critical
491 part to improve portability to perl 5.8 (reported by szymon).
492
4933.15 Mon Oct 13 00:39:55 CEST 2008
494 - automatic removal of feeders was broken.
495 - (libeio) use a more robust method to detect whether a feeder
496 has added something to the group or not.
497
4983.1 Thu Oct 2 13:34:40 CEST 2008
499 - pre-deref the passed callback object, for increased speed
500 and decreased memory usage.
501 - call on_next_submit callback even for aio_group - impact unknown,
502 but seems more correct.
503 - $req->cb now returns the original callback.
504 - (libeio) pass EIO_GROUP/aio_group requests through the queue without
505 requiring a thread switch.
506 - (libeio) status code of aio_futime and aio_utime was always passed 0.
507 - do some other ยต-optimisations.
508
5093.07 Sat Aug 2 16:06:13 CEST 2008
510 - do not include LIBS in autoconf tests.
511
5123.06 Tue Jul 15 12:41:32 CEST 2008
513 - move preadwritelock definition before it's first reference,
514 to make it compile again on broken platforms (they still exist)
515 or badly cofngiured perls (redhat...), reported by Rob Bloodgood.
516
5173.05 Thu Jun 19 23:23:52 CEST 2008
518 - work around perl overriding readdir etc. with thread-unsafe
519 (sic!) versions.
520
5213.04 Wed Jun 18 01:35:38 CEST 2008
522 - (libeio) fix eio_mknod, which confused it's arguments.
523 - (libeio) do not use readdir_r, as Ulrich Drepper pointed out that this
524 is stupid.
525 - (libeio) fix eio__readahead prototype, patch by Jost Krieger.
526 - (libeio) fix a bug that could potentially cause IO::AIO
527 not to get initialised properly.
528
5293.03 Thu May 29 05:33:30 CEST 2008
530 - (libeio) correctly call pthread_attr_destroy ().
531 - (libeio) work around broken bsd headers once more.
532 - reduce shared library size again by not including wrappers.
533 - max_outstanding could cause poll to enter a busy-waiting loop.
534 - document the new IO::AIO::poll_cb result value.
535
5363.02 Mon May 12 02:32:02 CEST 2008
537 - fix a memory leak on aio_readlink.
538 - bring back working fchmod.
539 - nop and busy now set result to 0.
540 - set errno to ENOMEM when allocation fails.
541
5423.01 Sun May 11 03:07:03 CEST 2008
543 - (libeio) make it compile on systems without readahead or readdir_r.
544 - (libeio) improve configure check for readahead availability.
545 - do not try to link against -lrt.
546 - use a separate configure script for IO::AIO (not the libeio one).
547
5483.0 Sun May 11 00:57:14 CEST 2008
549 - added bin/treescan to the distribution.
550 - switched to using libeio.
551 - LOTS OF INCOMPATIBLE CHANGES:
552 - remove signal functionality, it is not worth the effort.
553 - max_outstanding no longer returns the previous number of requests.
554 - poll_cb no longer returns number of requests.
555
5562.62 Sat Apr 26 13:59:33 CEST 2008
557 - port to solaris perls configured for old posix
558 (analysed by Jost Krieger).
559 - keep a reference to the perl filehandle object in aio_close,
560 so it doesn't get closed prematurely, leading to ugly races.
561
5622.61 Wed Apr 16 18:45:02 CEST 2008
563 - fix treescan output duplication and improve output ordering.
564 also display files given on the commandline.
565 - use a different algorithm for aio_close that is faster
566 and probably has even lower chances of blocking.
567 - do our own stack memory management for threads - linux
568 allocates outrageous amounts of VM (not so bad unless you
569 use mlockall...), which severely limits the number of threads
570 on 32-bit arches: stack size is the larger of PTHREAD_STACK_MIN
571 and 4096 * sizeof (long) (usually this is 16..64k).
572
5732.6 Sun Mar 30 08:28:11 CEST 2008
574 - added aio_sync.
575 - added aio_pathsync.
576 - fix prototypes of (void) functions.
577
5782.51 Sat Oct 6 16:04:54 CEST 2007
579 - perlio isn't generally threadsafe, so aio_close could not work reliably.
580 aio_close now tries a safe hack that might not be that asynchronous
581 (see the manpage for details).
582 - discard callback return values as to not grow the stack endlessly
583 when poll_cb handles many requests without returning.
584 - minor code cleanups.
585
5862.5 Thu Oct 4 14:49:08 CEST 2007
587 - replaced _fd2fh with faster xs code.
588 - aio_close will now try to do "the right thing" and thus might
589 work sensibly for the very first time.
590
5912.41 Mon Sep 24 21:28:21 CEST 2007
592 - after fork, invest some work to make sure that the poll_fileno
593 stays stable (by dup2'ing the new fd over the old one), to make
594 it easier for programs/libs that don't control their forking
595 behaviour and cannot recreate their watchers.
596
5972.4 Sun Aug 5 18:44:22 CEST 2007
598 - add aio_truncate, aio_chmod, aio_chown, aio_utime (linux
12 that you can block on futimes...). 599 successfully demonstrated that you can block on futimes...).
13 - allow undef as fileoffset for aio_read/write and use read/write(2) 600 - allow undef as fileoffset for aio_read/write and use read/write(2)
14 internally (useful for sockets or O_APPEND handles). 601 internally (useful for sockets or O_APPEND handles).
602 - allow undef for length in aio_write.
603 - negative dataoffsets work as expected now in aio_read/aio_write.
15 - use NV instead of UV for 32 bit perls and file offsets, as NVs 604 - use NV instead of UV for 32 bit perls and file offsets, as NVs
16 have a larger range then. 605 have a larger range then.
17 - shared code between BDB and IO::AIO. 606 - shared code between BDB and IO::AIO.
607 - aio_busy was completely broken. now fixed.
608 - readahead emulation now returns something.
18 - correctly set errno to ENOSYS on unimplemented functions 609 - correctly set errno to ENOSYS on unimplemented functions
19 (should never happen, though). 610 (should never happen, though).
611 - large changes to make it partially compile and run on win32,
612 but win32 lacks too much functionality, and perl overrides way
613 too many functions with crashing versions.
20 614
212.33 Tue Jan 23 23:55:41 CET 2007 6152.33 Tue Jan 23 23:55:41 CET 2007
22 - fix install path (Andreas J. Koenig). 616 - fix install path (Andreas J. Koenig).
23 617
242.32 Mon Jan 22 16:56:23 CET 2007 6182.32 Mon Jan 22 16:56:23 CET 2007

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