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Comparing IO-AIO/Changes (file contents):
Revision 1.19 by root, Sun Jul 31 17:24:05 2005 UTC vs.
Revision 1.381 by root, Mon Mar 18 23:52:09 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: http://lwn.net/Articles/593918/ SHMEM_SET_SEALS, SHMEM_GET_SEALS, SEAL_SHRINK, SEAL_GROW, SEAL_WRITE, int memfd_create(const char *name, u64 size, u64 flags);, MFD_CLOEXEC, int fd = open("/tmp", O_RDWR | O_TMPFILE | O_EXCL, S_IRWXU);
20TODO: name_to_handle_At + open_by_handle_at = clone fds
21TODO: lchown
22TODO: mount/umount2/MS_* flags
23
24TODO: rewrite rmtree et al. to support working directories (also speed them up)
25TODO: maybe IO::AIO leaks fds when requests are cancelled? maybe initialise result to -1?
26TODO: aio_wd should use O_PATH on linux, due to lacking O_SEARCH (http://comments.gmane.org/gmane.linux.file-systems/33611)
27 http://www.openwall.com/lists/musl/2013/02/23/4
28TODO: copy_file_range, copy_file_range
29TODO: FIDEDUPERANGE, file_ioctl.c
30TODO: mincore
31TODO: SOCK_CLOEXEc etc.
32TODO: unlinkat flags, linkat flags, statat, renameat2 flags
33TODO: https://kernelnewbies.org/Linux_4.11
34TODO: define useful rules for [[$wd, $path], $path] &c and implement them
35TODO: https://github.com/coreutils/coreutils/blob/master/src/stat.c maybe IO::AIO::FSID
36TODO: mlock2, MLOCK_ONFAULT
37TODO: dup3, pipe2, accept4
38TODO: dump config.log when automated testign and configure fails
39TODO: ns time resolution in utime
40TODO: statx
41
42 - (libeio) if fd 0 is available do not use it for aio_wd, as it
43 collides with IO::AIO::CWD.
44 - correctly include <sys/uio.h> in the vmsplice test.
45 - reduce codesize by ~7% on amd64 by declaring more functions
46 as noinline.
47
484.71 Sun Mar 10 13:09:26 CET 2019
49 - due to an error in the linux manpages, the configure tests
50 for readahead, sync_file_range, splice etc. failed. This has been fixed.
51
524.7 Mon Mar 4 11:28:13 CET 2019
53 - majorly speed up scandir for the very special case of a non-POSIX
54 filesystem that nevertheless reports valid dt_type information.
55 The only known filesystem of this type is currently btrfs, which
56 didn't get it's act together to implement POSIX semantics in all
57 these years, and I am tired of waiting.
58 - add IO::AIO::MCL_ONFAULT for mlockall, add IO::AIO::mlockall.
59 - neither sys/mkdev.h nor sys/sysmacros.h were included, even when they
60 were detected by autoconf.
61
624.6 Sat Aug 25 21:58:36 CEST 2018
63 - add st_btime, st_btimesec, st_btimensec and st_gen accessors,
64 mostly for bsds which expose birthtime and st_gen members (netbsd, freebsd
65 but only st_gen on openbsd because they compiled their perl without support
66 for birthtimes).
67 - fix madvise and munlock to properly support negative offsets.
68 - allocate fd for the aio_close at boot time, to guarantee it working
69 later, rather than calling abort when it fails. also avoids
70 close-on-exec race issues after module load.
71 - #undef utime on win32, maybe this helps some reports of utime hangs.
72 - minor doc improvements.
73 - minor configure cleanups.
74 - use $Config{perllibs} instead of libs for configure. might help people
75 who didn't install all perl dependencies (might break things as well).
76
774.54 Tue Aug 14 13:54:48 CEST 2018
78 - include sys/mkdev.h or sys/sysmacros.h if available.
79 - further tweaks to configure invocation for systems requiring --rpath.
80 - no longer rely on custom paths on win32 platforms.
81 - try to work around buggy PAGESIZE macro on solaris.
82
834.53 Tue Aug 14 11:27:50 CEST 2018
84 - add $Config{libs} to LIBS for configure, to work around systems
85 with broken library dependencies (... openbsd).
86
874.52 Sun Aug 12 08:09:45 CEST 2018
88 - config.h.in was missing in distribution.
89
904.51 Sun Aug 12 07:24:14 CEST 2018
91 - complete rework of the autoconf framework: IO::AIO now uses its own
92 config.h, separate from libeio, and tries to test the actual perl
93 environment, not the standard system environment.
94 - provide nanosecond-accracy stat time accessors for both perl and IO::AIO
95 stat functions.
96 - removed non-portable C++ syntax from eio.c.
97 - try to fix readdir tests on cygwin spuriously failing.
98
994.5 Wed Aug 1 00:23:55 CEST 2018
100 - aio_mtouch touch all pages as requested, not just the first page in most cases.
101 - new function: IO::AIO::mremap, linux-specific mremap, with constants MREMAP_MAYMOVE
102 and MREMAP_FIXED.
103 - add O_ACCMODE.
104 - add (undocumented) MSG_CMSG_CLOEXEC and SOCK_CLOEXEC constants.
105
1064.4 Tue Feb 20 07:54:12 CET 2018
107 - new aio_slurp request.
108 - add (experimental) IO::AIO::eventfd and timerfd* function.
109 - add (experimental) IO::AIO::get_fdlimit and IO::AIO::min_fdlimit.
110 - point out that aio_copy overwrites existing files.
111 - removed filesystem magic number table from aio_statvfs docs as
112 statvfs doesn't actually return this info at all (statfs does).
113 - add a bunch of (mostly linux-specific) constants for use in ioctls
114 (see aio_ioctl docs).
115 - treescan now has a proper manpage and useful --help output.
116 - new option --sync in treescan, to sync everything in a subtree.
117 - changed default for aio_msync flags to MSYNC_SYNC.
118 - document offset/length behaviour of mprotect/madvise.
119 - support linux's renameat2 (via aio_rename2).
120 - add aio_rename2, an aio_rename with flags.
121 - add F_DUPPFD_CLOEXEC, F_OFD_[SG]ETLKW? constants.
122 - add FALLOC_FL_INSERT_RANGE, FALLOC_FL_UNSHARE_RANGE.
123 - (libeio) use posix_close if available.
124 - (libeio) internal close() calls no longer disturb errno.
125 - add IO:AIO::FALLOC_FL_UNSHARE.
126 - update schmorp.h for removal of USE_SOCKETS_AS_HANDLES
127 and better eventfd detection.
128
1294.34 Sun May 1 19:18:24 CEST 2016
130 - def0.h was not properly generated during previous release, causing
131 compile errors on various platforms.
132 - major/minor were accidentally switched (reported by Alexander Lishenyuk).
133 - removed duplicate definition of MAP_HUGETLB, that was found due to
134 a bug in Perl::Tidy (testcase by alaska332@gmail.com).
135 - added (untested!) aio_fcntl, aio_ioctl requests.
136 - (libeio) names set via prctl are truncated to 15 chars + nul, not 16,
137 as manpages-dev originally claimed.
138
1394.33 Mon Jan 18 12:50:10 CET 2016
140 - add IO::AIO::pipe2 function.
141 - added support for FALLOC_FL_COLLAPSE_RANGE and FALLOC_FL_ZERO_RANGE
142 constants.
143 - added support for O_TMPFILE and O_PATH constants.
144 - added support for MAP_FIXED, MAP_GROWSDOWN,MAP_32BIT, MAP_HUGETLB, MAP_STACK
145 consdtants, whether they can be sensibly used or not.
146 - use NO_INIT where applicable.
147 - update libecb.
148 - added stability canary support.
149 - updated linux super magic table to 4.3.3.
150
1514.32 Wed Feb 11 20:32:11 CET 2015
152 - replace off_t by STRLEN where appropriate, should not result in
153 user-visible changes.
154 - update ecb.h for C11 compatibility.
155
1564.31 Tue Jun 3 03:29:27 CEST 2014
157 - work around more 5.20 bugs. backwards compatibility my ass.
158
1594.3 Fri Apr 11 06:22:38 CEST 2014
160 - perl5porters broke Async::Interrupt, BDB, EV, IO::AIO, OpenCL
161 without warning by switching the meaning of USE_SOCKETS_AS_HANDLES
162 in 5.18. What's so attractive about giving a shit about backwards
163 compatibility - I will never understand.
164
1654.2 Sat Jan 25 01:13:14 CET 2014
166 - aio_group could corrupt memory because it didn't restore
167 the stack after req_submit.
168 - be more careful on (e.g. permission) errors in bin/treescan.
169 - work around changes in ExtUtils::MakeMaker.
170 - (libeio) implement aio_realpath for win32.
171 - (xthread) work around compile time bugs in ptw32.
172 - added IO::AIO::pipesize.
173 - (libecb) insignificant update.
174
1754.19 Sun Jan 6 12:47:26 CET 2013
176 - avoid endless loop in fiemap with some XFS files.
177 - in aio_rename and aio_rmdir, specialcase the case of [$wd, "."]
178 and call rename/rmdir instead of renameat/unlinkat.
179
1804.18 Thu Oct 11 07:01:26 CEST 2012
181 - fix unintended xthread_create by intentionalising it :)
182
1834.17 Thu Oct 11 05:19:47 CEST 2012
184 - rename aio_fallocate to aio_allocate, to match documentation.
185 - add list of linux fsid values to aio_statvfs docs.
186 - work around a bug in btrfs' FIEMAP ioctl implementation.
187 - work around AIX bug: statvfs.f_fsid is a struct, not unsigned long
188 as per unix spec.
189
1904.16 Tue Aug 14 05:39:03 CEST 2012
191 - aio_statvfs was wromgly marked for wd emulation, causing
192 it to malfunction for paths.
193 - fix a crash in aio_fiemap, when used on ranges without any
194 extents.
195 - work around linux kernel bug (at least in 3.2): kernel might
196 trash fiemap input arguments.
197 - work around linux kernel bug (at least in 3.2): kernel does not
198 set FIEMAP_EXTENT_LAST on last segment.
199 - work around linux kernel bug (at least in 3.2): kernel silently
200 truncates segment count if a file.
201 - make fh argument of IO::AIO::mmap optional, also add mmap/munmap
202 to quick overview.
203 - splice can corrupt data.
204 - (libeio) remove pread/pwrite emulation.
205 - do not grow mmaped scalars in aio_read.
206 - add FALLOC_FL_PUNCH_HOLE and document fallocate.
207 - provide pread/pwrite for win32, making it link again on native win32.
208
2094.15 Tue Apr 10 06:59:00 CEST 2012
210 - always include linux/types.h for fiemap, for compatibility to
211 ancient systems (Paul Howarth).
212 - experimental support for IO::AIO::splice and ::tee (no aio_...).
213 - provide SEEK_HOLE and SEEK_DATA, if available.
214 - work around (again!) an immensely stupid bug in RHEL, defining
215 autoconf macros in linux system headers (analysed by Paul Howarth).
216
2174.14 Sat Apr 7 02:45:18 CEST 2012
218 - fix stat structure usage on windows, which caused bogus stat results.
219 - (libeio) make readahead emulation behave more like actual readahead by never failing.
220 - new request aio_seek.
221 - new request aio_fiemap.
222 - autogenerate the #ifdef/#define 0 blocks for symbols we export.
223
2244.12 Fri Dec 30 08:51:25 CET 2011
225 - realpath would return a random value if the name was too long,
226 instead of -1.
227 - port to c89.
228
2294.11 Mon Oct 10 00:24:11 CEST 2011
230 - libeio didn't compile on !linux (Paul Howarth).
231
2324.1 Sun Oct 9 10:24:11 CEST 2011
233 - IO::AIO did access uninitialised memory on unsuccessful stats.
234 - (libeio) added syncfs syscall wrapper.
235 - (libeio) set thread name on linux (ps -L/Hcx, top, gdb).
236 - (libeio) support multiple indepenent working directories.
237 - applied speling corrections by Nicholas Bamber.
238 - tune treescan #threads and #outstanding requests a bit.
239 - reduce the number of file descriptors in use at any one time
240 in treescan, to avoid running out of them (and using too much ram).
241 - take advantage of working directoriy abstractions
242 in aio_scandir and treescan.
243 - reduce compiled size by ~10% by not inlining some key functionality.
244 - added --progress switch to treescan.
245
2464.0 Mon Jul 18 05:01:10 CEST 2011
247 - INCOMPATIBLE CHANGE: fork is no longer supported (indeed, it never was),
248 see FORK BEHAVIOUR in manpage for details.
249 - passes testsuite on win32 now and may actually work
250 (activestate 5.10.1 / MSVC6, YMMV).
251 - (libeio) fix a deadlock where a wakeup signal could be missed when
252 a timeout occured at the same time.
253 - (libeio) added realpath.
254 - (libeio) added fallocate.
255 - (libeio) disabling sendfile on darwin unfortunately broke the emulation.
256 - (libeio) do not acquire any locks when forking.
257 - (libeio) use fewer time() syscalls when waiting for new requests.
258
2593.93 Wed Jun 29 23:44:18 CEST 2011
260 - ECB.H WAS MISSING.
261
2623.92 Wed Jun 29 14:45:41 CEST 2011
263 - ecb.h was missing.
264
2653.91 Wed Jun 29 13:24:42 CEST 2011
266 - (libeio) work around a Linux (and likely FreeBSD and other
267 kernels) bug where sendfile would not transfer all the requested
268 bytes on large transfers, using a heuristic.
269 - buggy sendfile caused aio_move/copy to sometimes fail for big
270 files (fortunately it checks that the whole file has been
271 transferred...)
272 - use libecb for higher performance and higher portability.
273 - (libeio) disable sendfile on darwin, it's too broken.
274 - disable fork tests on !linux, as only linux supports mixing
275 pthread and fork in perl.
276 - document the fact that fork doesn't work anymore when using
277 this module, on anything !GNU/Linux.
278 - increase timeout in t/04_fork.t, as too many CPAN-tester setups
279 run on a 0.1MHz cpu. Or so.
280
2813.9 Fri May 27 02:43:47 CEST 2011
282 - (libeio) fix memory corruption in aio_readdirx for the flags
283 combination READDIR_STAT_ORDER | READDIR_DIRS_FIRST.
284 - add lots of newer POSIX and GNU/Linux-specific open
285 flags.
286
2873.8 Sun Mar 27 12:25:33 CEST 2011
288 - use nonstandard but maybe-working-on-bsd fork technique.
289 - support a max_idle value of 0.
290 - support setting of idle timeout value (IO::AIO::idle_timeout).
291
2923.72 Fri Feb 11 04:25:38 CET 2011
293 - use _POSIX_MEMLOCK_RANGE to detect mlock/munlock.
294 - aio_mknod always used a dev_t value of 0.
295 - new treescan option: --grep.
296 - add more S_IF macros, and major/minor/makedev "macros".
297
2983.71 Thu Dec 30 08:18:46 CET 2010
299 - the numerical result value passed to callbacks did not stringify
300 correctly, due to internal reuse and failure to reset the sv flags.
301 - actually test for posix_[mf]advise, as at least uClibc defines
302 _POSIX_ADVISORY_INFO without actually having any of the required
303 funcitonality. ugh.
304
3053.7 Mon Nov 1 23:00:34 CET 2010
306 - implement/add madvise, mmap, munmap, aio_mlockall, munlockall,
307 aio_mlock, munlock, msync and mtouch to @EXPORT_OK.
308 - document the sad state of affairs w.r.t. pthread on many bsds.
309 - do not enable mmap on systems without _POSIX_MAPPED_FILES
310 (openbsd 4.8).
311 - do not leak memory in IO::AIO::mmap when the scalar already
312 had string-data.
313 - add O_RDWR, O_APPEND and O_EXCL symbols and semi-document
314 them.
315 - cache the result IV, for a minor speedup in the common case.
316 - croak when an mmapped-scalar changes location, to detect
317 user-errors better.
318 - fix aio_readlink prototype.
319
3203.65 Wed Mar 31 02:45:05 CEST 2010
321 - actually use PATH_MAX instead of NAME_MAX for readlink, as to not
322 cut off long pathnames in aio_readlink (based on patch by
323 Rasmus Andersson).
324 - a double fork partially killed the event pipe (great testcase
325 by dormando). affects IO::AIO, BDB and Async::Interrupt.
326 - suck steve's dick and rename our symbols to avoid colliding
327 with nonstandard identifier spam on the broken os x pseudo-os.
328 affects IO::AIO and BDB.
329
3303.6 Mon Jan 11 00:43:39 CET 2010
331 - (libeio) more fixes for the freebsd/apple sendfile - broken by
332 manpage standards, but apparently correct accoridng to actual
333 kernel sources.
334 - add IO::AIO::mmap/munmap support.
335 - add IO::AIO::m(un)lockall support.
336 - clean up manpage.
337
3383.5 Thu Jan 7 21:25:04 CET 2010
339 - (liebio) fix freebsd sendfile (Vanilla Hsu).
340 - (libeio) also fix darwin sendfile that suffered from a similar bug.
341 - add aio_statvfs as interface to statvfs/fstatvfs.
342 - work around buggy symlink() on cygwin in the testsuite.
343 - wtf. freebsd-8.0 actually passes the testsuite! I knew
344 they could implement fork and semaphores one day! cheers!
345
3463.4 Sat Jan 2 15:13:04 CET 2010
347 - (libeio) max_poll_time was not properly converted to ticks.
348 - clarify cancel_subs description.
349 - IO::AIO::sendfile did not actually return the return value
350 from the sendfile call.
351 - implement aio_msync, aio_mtouch.
352 - (libeio) tentatively support darwin in sendfile.
353
3543.31 Thu Nov 12 02:14:29 CET 2009
355 - fix result status documentation of aio_copy, aio_move.
356 - speed up object creation considerably by avoiding
357 hash lookups.
358
3593.3 Wed Aug 5 13:52:58 CEST 2009
360 - use common::sense.
361 - use common schmorp.h header.
362 - allow integers (file descriptors) in addition to file handles.
363 - take advantage of linux' eventfd (but it seems slower on smp?).
364 - use poll not select on posix platforms.
365
3663.261 Wed Jul 1 10:11:51 CEST 2009
367 - more 0S X workarounds (patch by Tokuhiro Matsuno).
368
3693.26 Tue Jun 30 09:33:26 CEST 2009
370 - 0S X of course claims to be posix 2008 but lacks posix_fadvise.
371 try to work around this horribly broken OS in a somewhat hackish
372 way. might help other os's too.
373
3743.25 Sat Jun 27 05:18:26 CEST 2009
375 - added IO::AIO::fadvise and IO::AIO::sendfile.
376 - (libeio) replaced quicksort+insertion sort by a tuned radix
377 sort + insertion sort, resulting in comparable runtime (usually
378 faster) to the old version, but without any ill side effects on
379 degenerated (for quicksort) data.
380 - (libeio) correctly sort dirs by inodes if we have perfect type
381 knowledge and DIRS_FIRST is used.
382 - (libeio) internally the wrong DT_* constants were used, but no
383 known system has differing EIO_DT_*/DT_* values, so not an issue.
384 - removed a (harmless) assert that was left over on the code
385 but should not have been.
386 - use more correct types (change IO length from IV to VAL64,
387 which makes a difference on systems without 64 bit perls).
388
3893.23 Sat Jun 13 16:57:58 CEST 2009
390 - fix off-by-one bug in aio_readdir that was introduced in the
391 rushed 3.22 release.
392
3933.22 Sat Jun 13 15:32:40 CEST 2009
394 - speed up readdirx sort algorithm slightly.
395 - bin/treescan was missing from distro tarball.
396
3973.21 Fri Jun 12 18:45:53 CEST 2009
398 - new options --dirs and --files for treescan.
399 - install bin/treescan by default.
400 - (libeio) aio_readdir can now be cancelled while executing.
401 - fix a printf format string for 64 bit systems (could lead
402 to problems on big endian 64 bit systems).
403 - do not use qsort() but our own algorithm: glibc initialises
404 the whole locale and I/O subsystem inside qsort, causing
405 a stack overflow on 32 bit machines. The new sort uses much less
406 stack and is more than twice as fast in typical situations.
407
4083.2 Sun Jun 7 20:30:05 CEST 2009
409 - (libeio) pwrite emulation was even more flawed than intended and did
410 not restore the file offset.
411 - add aio_readdirx, which can return inode and filetype and sort
412 the names in various ways.
413 - unfortunately, utime, chmod, chown on an open file that has just
414 been written can easily block, which caused aio_copy to block the
415 process. no more!
416 - no longer rely on dst path in aio_copy when futime is available.
417
4183.19 Tue Apr 21 22:05:21 CEST 2009
419 - more perl 5.10 workarounds for aio_read and write.
420 - aio_write no longer modifies the sv (if possible).
421 - aio_read now works correctly with magic values.
422
4233.18 Sun Apr 19 21:17:32 CEST 2009
424 - better diagnostics when some aio_* functions get passed an illegal fh.
425 - try to avoid crashes due to incompatible 5.10 API changes. grmbl.
426
4273.17 Thu Nov 20 08:45:36 CET 2008
428 - (libeio) added aio_sync_file_range (untested).
429 - add aio_busy to @IO::AIO::AIO_REQ.
430
4313.16 Wed Oct 22 18:28:01 CEST 2008
432 - use SvREFCNT_inc instead of SvREFCNT_inc_NN in a non-speed critical
433 part to improve portability to perl 5.8 (reported by szymon).
434
4353.15 Mon Oct 13 00:39:55 CEST 2008
436 - automatic removal of feeders was broken.
437 - (libeio) use a more robust method to detect whether a feeder
438 has added something to the group or not.
439
4403.1 Thu Oct 2 13:34:40 CEST 2008
441 - pre-deref the passed callback object, for increased speed
442 and decreased memory usage.
443 - call on_next_submit callback even for aio_group - impact unknown,
444 but seems more correct.
445 - $req->cb now returns the original callback.
446 - (libeio) pass EIO_GROUP/aio_group requests through the queue without
447 requiring a thread switch.
448 - (libeio) status code of aio_futime and aio_utime was always passed 0.
449 - do some other ยต-optimisations.
450
4513.07 Sat Aug 2 16:06:13 CEST 2008
452 - do not include LIBS in autoconf tests.
453
4543.06 Tue Jul 15 12:41:32 CEST 2008
455 - move preadwritelock definition before it's first reference,
456 to make it compile again on broken platforms (they still exist)
457 or badly cofngiured perls (redhat...), reported by Rob Bloodgood.
458
4593.05 Thu Jun 19 23:23:52 CEST 2008
460 - work around perl overriding readdir etc. with thread-unsafe
461 (sic!) versions.
462
4633.04 Wed Jun 18 01:35:38 CEST 2008
464 - (libeio) fix eio_mknod, which confused it's arguments.
465 - (libeio) do not use readdir_r, as Ulrich Drepper pointed out that this
466 is stupid.
467 - (libeio) fix eio__readahead prototype, patch by Jost Krieger.
468 - (libeio) fix a bug that could potentially cause IO::AIO
469 not to get initialised properly.
470
4713.03 Thu May 29 05:33:30 CEST 2008
472 - (libeio) correctly call pthread_attr_destroy ().
473 - (libeio) work around broken bsd headers once more.
474 - reduce shared library size again by not including wrappers.
475 - max_outstanding could cause poll to enter a busy-waiting loop.
476 - document the new IO::AIO::poll_cb result value.
477
4783.02 Mon May 12 02:32:02 CEST 2008
479 - fix a memory leak on aio_readlink.
480 - bring back working fchmod.
481 - nop and busy now set result to 0.
482 - set errno to ENOMEM when allocation fails.
483
4843.01 Sun May 11 03:07:03 CEST 2008
485 - (libeio) make it compile on systems without readahead or readdir_r.
486 - (libeio) improve configure check for readahead availability.
487 - do not try to link against -lrt.
488 - use a separate configure script for IO::AIO (not the libeio one).
489
4903.0 Sun May 11 00:57:14 CEST 2008
491 - added bin/treescan to the distribution.
492 - switched to using libeio.
493 - LOTS OF INCOMPATIBLE CHANGES:
494 - remove signal functionality, it is not worth the effort.
495 - max_outstanding no longer returns the previous number of requests.
496 - poll_cb no longer returns number of requests.
497
4982.62 Sat Apr 26 13:59:33 CEST 2008
499 - port to solaris perls configured for old posix
500 (analysed by Jost Krieger).
501 - keep a reference to the perl filehandle object in aio_close,
502 so it doesn't get closed prematurely, leading to ugly races.
503
5042.61 Wed Apr 16 18:45:02 CEST 2008
505 - fix treescan output duplication and improve output ordering.
506 also display files given on the commandline.
507 - use a different algorithm for aio_close that is faster
508 and probably has even lower chances of blocking.
509 - do our own stack memory management for threads - linux
510 allocates outrageous amounts of VM (not so bad unless you
511 use mlockall...), which severely limits the number of threads
512 on 32-bit arches: stack size is the larger of PTHREAD_STACK_MIN
513 and 4096 * sizeof (long) (usually this is 16..64k).
514
5152.6 Sun Mar 30 08:28:11 CEST 2008
516 - added aio_sync.
517 - added aio_pathsync.
518 - fix prototypes of (void) functions.
519
5202.51 Sat Oct 6 16:04:54 CEST 2007
521 - perlio isn't generally threadsafe, so aio_close could not work reliably.
522 aio_close now tries a safe hack that might not be that asynchronous
523 (see the manpage for details).
524 - discard callback return values as to not grow the stack endlessly
525 when poll_cb handles many requests without returning.
526 - minor code cleanups.
527
5282.5 Thu Oct 4 14:49:08 CEST 2007
529 - replaced _fd2fh with faster xs code.
530 - aio_close will now try to do "the right thing" and thus might
531 work sensibly for the very first time.
532
5332.41 Mon Sep 24 21:28:21 CEST 2007
534 - after fork, invest some work to make sure that the poll_fileno
535 stays stable (by dup2'ing the new fd over the old one), to make
536 it easier for programs/libs that don't control their forking
537 behaviour and cannot recreate their watchers.
538
5392.4 Sun Aug 5 18:44:22 CEST 2007
540 - add aio_truncate, aio_chmod, aio_chown, aio_utime (linux
541 successfully demonstrated that you can block on futimes...).
542 - allow undef as fileoffset for aio_read/write and use read/write(2)
543 internally (useful for sockets or O_APPEND handles).
544 - allow undef for length in aio_write.
545 - negative dataoffsets work as expected now in aio_read/aio_write.
546 - use NV instead of UV for 32 bit perls and file offsets, as NVs
547 have a larger range then.
548 - shared code between BDB and IO::AIO.
549 - aio_busy was completely broken. now fixed.
550 - readahead emulation now returns something.
551 - correctly set errno to ENOSYS on unimplemented functions
552 (should never happen, though).
553 - large changes to make it partially compile and run on win32,
554 but win32 lacks too much functionality, and perl overrides way
555 too many functions with crashing versions.
556
5572.33 Tue Jan 23 23:55:41 CET 2007
558 - fix install path (Andreas J. Koenig).
559
5602.32 Mon Jan 22 16:56:23 CET 2007
561 - added aio_rmtree.
562 - wow, aio_mkdir was missing.
563 - aio_load did return undef on error, not -1.
564 - use prefixexp not prefix in autoconf.pm
565 (suggested by ... rt.cpan.org unreachable).
566 - avoid installing autoconf.pm.
567
5682.31 Sat Jan 6 03:46:02 CET 2007
569 - added aio_load.
570
5712.3 Sat Dec 23 05:48:07 CET 2006
572 - fix off-by-one bug in aio_read, causing memory corruption
573 or crashes.
574
5752.21 Fri Dec 22 05:03:38 CET 2006
576 - minor doc updates.
577 - minor cleanups.
578 - IO::AIO::poll returns request count.
579 - undocumented and unfinished async-signal-reporting.
580
5812.2 Tue Oct 31 00:31:00 CET 2006
582 - minor doc updates.
583 - added aio_readlink.
584 - properly zero-terminate aio_read buffer.
585 - fix aio_read/write with nonzero dataoffset.
586 - reduced size of aio request structure.
587 - better diagnostics when pathnames etc. are not byte-encoded;
588 do not leak request in that case, either.
589
5902.1 Sun Oct 29 02:01:57 CET 2006
591 - INCOMPATIBLE CHANGE: replace IO::AIO::poll_some by
592 IO::AIO::max_poll_reqs and IO::AIO::max_poll_time.
593 - fix a bug in aio_move where it would fail everytime
594 it would have to copy files manually.
595 - doc updates.
596 - start threads only on (very low) demand.
597 - end superfluous threads automatically after 10s idling.
598 - add IO::AIO::max_idle to control this.
599 - some tuning applied to random places.
600 - add aio_mknod.
601
6022.0 Thu Oct 26 18:27:58 CEST 2006
603 - minor incompatibility: max_outstanding semantics have changed.
604 - major rewrite, consider all functionality EXPERIMENTAL.
605 - aio requests can be cancelled.
606 - callbacks can be (re-)set later.
607 - aio requests can choose between 9 priorities.
608 - add aio_group: aio requests can be grouped
609 into composite requests.
610 - generator interface for groups.
611 - add IO::AIO::poll_some.
612 - major documentation improvements.
613 - very minor bugfixes.
614 - add aio_nop for dummy requests.
615 - add aio_busy mainly for benchmarking and debugging.
616 - use "fast" mutexes on linux.
617 - use dynamic (and larger) buffers instead of
618 putting them onto the stack.
619 - optimise x86 and amd64 a bit.
620 - better error checking when ENOMEM.
621 - hopefully fix mem and dirp leaks on fork.
622 - warn about broken perl malloc.
623 - compiles on cygwin (but pread is broken on cygwin
624 which is not detected by autoconf, so you have to
625 edit autoconf/config.h yourself to enable emulation).
626
6271.8 Sat Jun 24 22:20:44 CEST 2006
628 - add and/or document aio_rename, aio_link, aio_symlink and aio_move.
629
6301.73 Wed Mar 1 22:49:32 CET 2006
631 - codename "jost"
632 - AIX/Solaris(?) aren't being helpful again, hardcode a value
633 for NAME_MAX and drive with your eyes closed (reported by
634 wcooley@nakedape.cc).
635
6361.72 Thu Feb 2 00:40:44 CET 2006
637 - another minor bug in aio_scandir, again, the callback was called
638 twice when the directory can't be stat'ed.
639
6401.71 Mon Dec 26 20:20:03 CET 2005
641 - grr, another minor bug in aio_scandir, this time resulting
642 in a runtime error.
643
6441.7 Mon Dec 26 19:29:48 CET 2005
645 - aio_scandir errornously called callback twice in some cases.
646 - added AnyEvent example.
647
6481.61 Wed Sep 7 19:40:42 CEST 2005
649 - no longer include $Config{libs}, as distros include too much
650 garbage in there that is not installed on typical systems
651 (for example, debian links perl against -lgdbm and many more
652 libraries despite perl not needing it, slowing down startup and
653 wasting memory).
654
6551.6 Tue Aug 30 17:44:44 CEST 2005
656 - added aio_readdir, aio_scandir.
657 - added aio_sendfile, including sendfile emulation when sendfile
658 isn't available. Linux, FreeBSD and HP-UX might work (sendfilev
659 support is unavailable on my solaris 8 machine, but preliminary
660 code is there. What's lacking is configury stuff and testing...).
661
6621.5 Sat Aug 20 02:32:19 CEST 2005
663 - create the aio threads on demand only (good after forking).
664 - somebody nagged about C89 compatibility, so this release should
665 be C89 compatible, but no guarantees for future ones.
666 - abort when the configure script fails.
667
6681.4 Wed Aug 17 08:07:27 CEST 2005
669 - forgot to recreate the pipe after forking, this could cause
670 deadlocks.
671
6721.3 Wed Aug 17 07:25:54 CEST 2005
673 - properly propagate exceptions from callbacks, instead of silently
674 eating them.
675 - use a different fork algorithm that avoids recursive callback
676 invocations and reduces fork latency in busy processes.
677 - fix a bug where the buffer scalar in aio_read got assigned the wrong
678 length after reading.
679 - fix a bug where the child would process some outstanding requests
680 from the parent.
681 - make a copy of the callback scalar, to avoid some very uncommon
682 (but valid) usages where the callback scalar changes.
683 - the callback was never freed in aio_read/aio_write.
684 - aio_read/aio_write will now set the readonly flag on the data
685 scalar for better error reporting.
686
6871.2 Wed Aug 17 01:22:58 CEST 2005
688 - verified on cygwin, linux/amd64+ia32+alpha, solaris.
689 - use SvPVbyte for filenames now. You *need* to encode your strings to
690 the external filename encoding first.
691 - fix the bug where filehandles could leak (again).
692 - clarify freebsd situation: make it work and tell me how, or go away
693 with your underdocumented, broken and outdated OS.
694 - fork'ing should now be officially supported (where linux and
695 posix contradict each other, I followed posix).
696 - only call read() once per poll, not twice (speedup).
697 - new functions: aio_rmdir, aio_symlink.
698 - force callback arguments to be undef or a reference, for better
699 error catching.
700
7011.1 Sun Aug 7 05:27:23 CEST 2005
702 - added configure script to detect availability of some calls.
703 (imperfect, as we cannot detect things like -lrt due to missing
704 feedback yet).
705 - emulate fdatasync via fsync, pread/pwrite via unsafe read/write
706 and readahead via manual reading on platforms lacking those.
3 - ported t/03_errors.t+framework by Brad Fitzpatrick 707 - ported t/03_errors.t+framework by Brad Fitzpatrick
4 from Linux::AIO. 708 from Linux::AIO.
5 - removed XOPEN_SOURCE because stupid solaris 9 doesn't 709 - removed XOPEN_SOURCE because stupid solaris 9 doesn't
6 compile with it enabled. Probably breaks others. Oh well. 710 compile with it enabled. Probably breaks others. Oh well.
711 - try to be more careful with errno on non-threaded perls.
712 - cygwins perl insisted on a matching open mode when morphing
713 the fd to an fh.
714 - convert sv's to "byte" encoding in aio_read/aio_write. Might
715 do that for pathnames, too, in the future, so make sure you
716 properly encode your pathnames.
7 717
81.0 Fri Jul 22 10:43:30 CEST 2005 7181.0 Fri Jul 22 10:43:30 CEST 2005
9 - aio_open did not reliably deliver (open) filehandles. 719 - aio_open did not reliably deliver (open) filehandles.
10 - all aio_*-functions keep a reference to the filehandle so 720 - all aio_*-functions keep a reference to the filehandle so
11 it doesn't go away while the aio requests is working on it. 721 it doesn't go away while the aio requests is working on it.

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