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Comparing IO-AIO/Changes (file contents):
Revision 1.48 by root, Tue Aug 23 01:16:50 2005 UTC vs.
Revision 1.380 by root, Sun Mar 10 12:16:48 2019 UTC

1Revision history for IO::AIO 1Revision history for IO::AIO
2 2
3 - (experimental) sendfile support, including sendfile emulation 3TODO: scandir - some dirs mostly contain subdirs - invert logic?
4TODO: aio_cptree/mvtree
5TODO: vmsplice? (http://kerneltrap.org/node/6505 http://lwn.net/Articles/178199/)
6TODO: getxattr, setxattr, listxattr, removexattr etc.?
7TODO: emulation for splice?
8TODO: syncfs/sync windows:
9TODO: posix_fallocate when flags=0
10http://stackoverflow.com/questions/65170/how-to-get-name-associated-with-open-handle/5286888#5286888
11http://blogs.msdn.com/b/adioltean/archive/2005/04/16/408947.aspx
12http://msdn.microsoft.com/en-us/library/aa366789%28v=vs.85%29.aspx
13http://msdn.microsoft.com/en-us/library/windows/desktop/aa366789%28v=vs.85%29.aspx
14http://msdn.microsoft.com/en-us/library/windows/desktop/aa364425%28v=vs.85%29.aspx
15http://msdn.microsoft.com/en-us/library/windows/desktop/aa364963%28v=vs.85%29.aspx
16http://msdn.microsoft.com/en-us/library/windows/desktop/aa364996%28v=vs.85%29.aspx
17http://msdn.microsoft.com/en-us/library/windows/desktop/aa364994%28v=vs.85%29.aspx
18TODO: extra socket/tcp constants &c?
19TODO: http://lwn.net/Articles/593918/ SHMEM_SET_SEALS, SHMEM_GET_SEALS, SEAL_SHRINK, SEAL_GROW, SEAL_WRITE, int memfd_create(const char *name, u64 size, u64 flags);, MFD_CLOEXEC, int fd = open("/tmp", O_RDWR | O_TMPFILE | O_EXCL, S_IRWXU);
20TODO: name_to_handle_At + open_by_handle_at = clone fds
21TODO: lchown
22TODO: mount/umount2/MS_* flags
23
24TODO: rewrite rmtree et al. to support working directories (also speed them up)
25TODO: maybe IO::AIO leaks fds when requests are cancelled? maybe initialise result to -1?
26TODO: aio_wd should use O_PATH on linux, due to lacking O_SEARCH (http://comments.gmane.org/gmane.linux.file-systems/33611)
27 http://www.openwall.com/lists/musl/2013/02/23/4
28TODO: 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
40
41 - correctly include <sys/uio.h> in the vmsplice test.
42
434.71 Sun Mar 10 13:09:26 CET 2019
44 - due to an error in the linux manpages, the configure tests
45 for readahead, sync_file_range, splice etc. failed. This has been fixed.
46
474.7 Mon Mar 4 11:28:13 CET 2019
48 - majorly speed up scandir for the very special case of a non-POSIX
49 filesystem that nevertheless reports valid dt_type information.
50 The only known filesystem of this type is currently btrfs, which
51 didn't get it's act together to implement POSIX semantics in all
52 these years, and I am tired of waiting.
53 - add IO::AIO::MCL_ONFAULT for mlockall, add IO::AIO::mlockall.
54 - neither sys/mkdev.h nor sys/sysmacros.h were included, even when they
55 were detected by autoconf.
56
574.6 Sat Aug 25 21:58:36 CEST 2018
58 - add st_btime, st_btimesec, st_btimensec and st_gen accessors,
59 mostly for bsds which expose birthtime and st_gen members (netbsd, freebsd
60 but only st_gen on openbsd because they compiled their perl without support
61 for birthtimes).
62 - fix madvise and munlock to properly support negative offsets.
63 - allocate fd for the aio_close at boot time, to guarantee it working
64 later, rather than calling abort when it fails. also avoids
65 close-on-exec race issues after module load.
66 - #undef utime on win32, maybe this helps some reports of utime hangs.
67 - minor doc improvements.
68 - minor configure cleanups.
69 - use $Config{perllibs} instead of libs for configure. might help people
70 who didn't install all perl dependencies (might break things as well).
71
724.54 Tue Aug 14 13:54:48 CEST 2018
73 - include sys/mkdev.h or sys/sysmacros.h if available.
74 - further tweaks to configure invocation for systems requiring --rpath.
75 - no longer rely on custom paths on win32 platforms.
76 - try to work around buggy PAGESIZE macro on solaris.
77
784.53 Tue Aug 14 11:27:50 CEST 2018
79 - add $Config{libs} to LIBS for configure, to work around systems
80 with broken library dependencies (... openbsd).
81
824.52 Sun Aug 12 08:09:45 CEST 2018
83 - config.h.in was missing in distribution.
84
854.51 Sun Aug 12 07:24:14 CEST 2018
86 - complete rework of the autoconf framework: IO::AIO now uses its own
87 config.h, separate from libeio, and tries to test the actual perl
88 environment, not the standard system environment.
89 - provide nanosecond-accracy stat time accessors for both perl and IO::AIO
90 stat functions.
91 - removed non-portable C++ syntax from eio.c.
92 - try to fix readdir tests on cygwin spuriously failing.
93
944.5 Wed Aug 1 00:23:55 CEST 2018
95 - aio_mtouch touch all pages as requested, not just the first page in most cases.
96 - new function: IO::AIO::mremap, linux-specific mremap, with constants MREMAP_MAYMOVE
97 and MREMAP_FIXED.
98 - add O_ACCMODE.
99 - add (undocumented) MSG_CMSG_CLOEXEC and SOCK_CLOEXEC constants.
100
1014.4 Tue Feb 20 07:54:12 CET 2018
102 - new aio_slurp request.
103 - add (experimental) IO::AIO::eventfd and timerfd* function.
104 - add (experimental) IO::AIO::get_fdlimit and IO::AIO::min_fdlimit.
105 - point out that aio_copy overwrites existing files.
106 - removed filesystem magic number table from aio_statvfs docs as
107 statvfs doesn't actually return this info at all (statfs does).
108 - add a bunch of (mostly linux-specific) constants for use in ioctls
109 (see aio_ioctl docs).
110 - treescan now has a proper manpage and useful --help output.
111 - new option --sync in treescan, to sync everything in a subtree.
112 - changed default for aio_msync flags to MSYNC_SYNC.
113 - document offset/length behaviour of mprotect/madvise.
114 - support linux's renameat2 (via aio_rename2).
115 - add aio_rename2, an aio_rename with flags.
116 - add F_DUPPFD_CLOEXEC, F_OFD_[SG]ETLKW? constants.
117 - add FALLOC_FL_INSERT_RANGE, FALLOC_FL_UNSHARE_RANGE.
118 - (libeio) use posix_close if available.
119 - (libeio) internal close() calls no longer disturb errno.
120 - add IO:AIO::FALLOC_FL_UNSHARE.
121 - update schmorp.h for removal of USE_SOCKETS_AS_HANDLES
122 and better eventfd detection.
123
1244.34 Sun May 1 19:18:24 CEST 2016
125 - def0.h was not properly generated during previous release, causing
126 compile errors on various platforms.
127 - major/minor were accidentally switched (reported by Alexander Lishenyuk).
128 - removed duplicate definition of MAP_HUGETLB, that was found due to
129 a bug in Perl::Tidy (testcase by alaska332@gmail.com).
130 - added (untested!) aio_fcntl, aio_ioctl requests.
131 - (libeio) names set via prctl are truncated to 15 chars + nul, not 16,
132 as manpages-dev originally claimed.
133
1344.33 Mon Jan 18 12:50:10 CET 2016
135 - add IO::AIO::pipe2 function.
136 - added support for FALLOC_FL_COLLAPSE_RANGE and FALLOC_FL_ZERO_RANGE
137 constants.
138 - added support for O_TMPFILE and O_PATH constants.
139 - added support for MAP_FIXED, MAP_GROWSDOWN,MAP_32BIT, MAP_HUGETLB, MAP_STACK
140 consdtants, whether they can be sensibly used or not.
141 - use NO_INIT where applicable.
142 - update libecb.
143 - added stability canary support.
144 - updated linux super magic table to 4.3.3.
145
1464.32 Wed Feb 11 20:32:11 CET 2015
147 - replace off_t by STRLEN where appropriate, should not result in
148 user-visible changes.
149 - update ecb.h for C11 compatibility.
150
1514.31 Tue Jun 3 03:29:27 CEST 2014
152 - work around more 5.20 bugs. backwards compatibility my ass.
153
1544.3 Fri Apr 11 06:22:38 CEST 2014
155 - perl5porters broke Async::Interrupt, BDB, EV, IO::AIO, OpenCL
156 without warning by switching the meaning of USE_SOCKETS_AS_HANDLES
157 in 5.18. What's so attractive about giving a shit about backwards
158 compatibility - I will never understand.
159
1604.2 Sat Jan 25 01:13:14 CET 2014
161 - aio_group could corrupt memory because it didn't restore
162 the stack after req_submit.
163 - be more careful on (e.g. permission) errors in bin/treescan.
164 - work around changes in ExtUtils::MakeMaker.
165 - (libeio) implement aio_realpath for win32.
166 - (xthread) work around compile time bugs in ptw32.
167 - added IO::AIO::pipesize.
168 - (libecb) insignificant update.
169
1704.19 Sun Jan 6 12:47:26 CET 2013
171 - avoid endless loop in fiemap with some XFS files.
172 - in aio_rename and aio_rmdir, specialcase the case of [$wd, "."]
173 and call rename/rmdir instead of renameat/unlinkat.
174
1754.18 Thu Oct 11 07:01:26 CEST 2012
176 - fix unintended xthread_create by intentionalising it :)
177
1784.17 Thu Oct 11 05:19:47 CEST 2012
179 - rename aio_fallocate to aio_allocate, to match documentation.
180 - add list of linux fsid values to aio_statvfs docs.
181 - work around a bug in btrfs' FIEMAP ioctl implementation.
182 - work around AIX bug: statvfs.f_fsid is a struct, not unsigned long
183 as per unix spec.
184
1854.16 Tue Aug 14 05:39:03 CEST 2012
186 - aio_statvfs was wromgly marked for wd emulation, causing
187 it to malfunction for paths.
188 - fix a crash in aio_fiemap, when used on ranges without any
189 extents.
190 - work around linux kernel bug (at least in 3.2): kernel might
191 trash fiemap input arguments.
192 - work around linux kernel bug (at least in 3.2): kernel does not
193 set FIEMAP_EXTENT_LAST on last segment.
194 - work around linux kernel bug (at least in 3.2): kernel silently
195 truncates segment count if a file.
196 - make fh argument of IO::AIO::mmap optional, also add mmap/munmap
197 to quick overview.
198 - splice can corrupt data.
199 - (libeio) remove pread/pwrite emulation.
200 - do not grow mmaped scalars in aio_read.
201 - add FALLOC_FL_PUNCH_HOLE and document fallocate.
202 - provide pread/pwrite for win32, making it link again on native win32.
203
2044.15 Tue Apr 10 06:59:00 CEST 2012
205 - always include linux/types.h for fiemap, for compatibility to
206 ancient systems (Paul Howarth).
207 - experimental support for IO::AIO::splice and ::tee (no aio_...).
208 - provide SEEK_HOLE and SEEK_DATA, if available.
209 - work around (again!) an immensely stupid bug in RHEL, defining
210 autoconf macros in linux system headers (analysed by Paul Howarth).
211
2124.14 Sat Apr 7 02:45:18 CEST 2012
213 - fix stat structure usage on windows, which caused bogus stat results.
214 - (libeio) make readahead emulation behave more like actual readahead by never failing.
215 - new request aio_seek.
216 - new request aio_fiemap.
217 - autogenerate the #ifdef/#define 0 blocks for symbols we export.
218
2194.12 Fri Dec 30 08:51:25 CET 2011
220 - realpath would return a random value if the name was too long,
221 instead of -1.
222 - port to c89.
223
2244.11 Mon Oct 10 00:24:11 CEST 2011
225 - libeio didn't compile on !linux (Paul Howarth).
226
2274.1 Sun Oct 9 10:24:11 CEST 2011
228 - IO::AIO did access uninitialised memory on unsuccessful stats.
229 - (libeio) added syncfs syscall wrapper.
230 - (libeio) set thread name on linux (ps -L/Hcx, top, gdb).
231 - (libeio) support multiple indepenent working directories.
232 - applied speling corrections by Nicholas Bamber.
233 - tune treescan #threads and #outstanding requests a bit.
234 - reduce the number of file descriptors in use at any one time
235 in treescan, to avoid running out of them (and using too much ram).
236 - take advantage of working directoriy abstractions
237 in aio_scandir and treescan.
238 - reduce compiled size by ~10% by not inlining some key functionality.
239 - added --progress switch to treescan.
240
2414.0 Mon Jul 18 05:01:10 CEST 2011
242 - INCOMPATIBLE CHANGE: fork is no longer supported (indeed, it never was),
243 see FORK BEHAVIOUR in manpage for details.
244 - passes testsuite on win32 now and may actually work
245 (activestate 5.10.1 / MSVC6, YMMV).
246 - (libeio) fix a deadlock where a wakeup signal could be missed when
247 a timeout occured at the same time.
248 - (libeio) added realpath.
249 - (libeio) added fallocate.
250 - (libeio) disabling sendfile on darwin unfortunately broke the emulation.
251 - (libeio) do not acquire any locks when forking.
252 - (libeio) use fewer time() syscalls when waiting for new requests.
253
2543.93 Wed Jun 29 23:44:18 CEST 2011
255 - ECB.H WAS MISSING.
256
2573.92 Wed Jun 29 14:45:41 CEST 2011
258 - ecb.h was missing.
259
2603.91 Wed Jun 29 13:24:42 CEST 2011
261 - (libeio) work around a Linux (and likely FreeBSD and other
262 kernels) bug where sendfile would not transfer all the requested
263 bytes on large transfers, using a heuristic.
264 - buggy sendfile caused aio_move/copy to sometimes fail for big
265 files (fortunately it checks that the whole file has been
266 transferred...)
267 - use libecb for higher performance and higher portability.
268 - (libeio) disable sendfile on darwin, it's too broken.
269 - disable fork tests on !linux, as only linux supports mixing
270 pthread and fork in perl.
271 - document the fact that fork doesn't work anymore when using
272 this module, on anything !GNU/Linux.
273 - increase timeout in t/04_fork.t, as too many CPAN-tester setups
274 run on a 0.1MHz cpu. Or so.
275
2763.9 Fri May 27 02:43:47 CEST 2011
277 - (libeio) fix memory corruption in aio_readdirx for the flags
278 combination READDIR_STAT_ORDER | READDIR_DIRS_FIRST.
279 - add lots of newer POSIX and GNU/Linux-specific open
280 flags.
281
2823.8 Sun Mar 27 12:25:33 CEST 2011
283 - use nonstandard but maybe-working-on-bsd fork technique.
284 - support a max_idle value of 0.
285 - support setting of idle timeout value (IO::AIO::idle_timeout).
286
2873.72 Fri Feb 11 04:25:38 CET 2011
288 - use _POSIX_MEMLOCK_RANGE to detect mlock/munlock.
289 - aio_mknod always used a dev_t value of 0.
290 - new treescan option: --grep.
291 - add more S_IF macros, and major/minor/makedev "macros".
292
2933.71 Thu Dec 30 08:18:46 CET 2010
294 - the numerical result value passed to callbacks did not stringify
295 correctly, due to internal reuse and failure to reset the sv flags.
296 - actually test for posix_[mf]advise, as at least uClibc defines
297 _POSIX_ADVISORY_INFO without actually having any of the required
298 funcitonality. ugh.
299
3003.7 Mon Nov 1 23:00:34 CET 2010
301 - implement/add madvise, mmap, munmap, aio_mlockall, munlockall,
302 aio_mlock, munlock, msync and mtouch to @EXPORT_OK.
303 - document the sad state of affairs w.r.t. pthread on many bsds.
304 - do not enable mmap on systems without _POSIX_MAPPED_FILES
305 (openbsd 4.8).
306 - do not leak memory in IO::AIO::mmap when the scalar already
307 had string-data.
308 - add O_RDWR, O_APPEND and O_EXCL symbols and semi-document
309 them.
310 - cache the result IV, for a minor speedup in the common case.
311 - croak when an mmapped-scalar changes location, to detect
312 user-errors better.
313 - fix aio_readlink prototype.
314
3153.65 Wed Mar 31 02:45:05 CEST 2010
316 - actually use PATH_MAX instead of NAME_MAX for readlink, as to not
317 cut off long pathnames in aio_readlink (based on patch by
318 Rasmus Andersson).
319 - a double fork partially killed the event pipe (great testcase
320 by dormando). affects IO::AIO, BDB and Async::Interrupt.
321 - suck steve's dick and rename our symbols to avoid colliding
322 with nonstandard identifier spam on the broken os x pseudo-os.
323 affects IO::AIO and BDB.
324
3253.6 Mon Jan 11 00:43:39 CET 2010
326 - (libeio) more fixes for the freebsd/apple sendfile - broken by
327 manpage standards, but apparently correct accoridng to actual
328 kernel sources.
329 - add IO::AIO::mmap/munmap support.
330 - add IO::AIO::m(un)lockall support.
331 - clean up manpage.
332
3333.5 Thu Jan 7 21:25:04 CET 2010
334 - (liebio) fix freebsd sendfile (Vanilla Hsu).
335 - (libeio) also fix darwin sendfile that suffered from a similar bug.
336 - add aio_statvfs as interface to statvfs/fstatvfs.
337 - work around buggy symlink() on cygwin in the testsuite.
338 - wtf. freebsd-8.0 actually passes the testsuite! I knew
339 they could implement fork and semaphores one day! cheers!
340
3413.4 Sat Jan 2 15:13:04 CET 2010
342 - (libeio) max_poll_time was not properly converted to ticks.
343 - clarify cancel_subs description.
344 - IO::AIO::sendfile did not actually return the return value
345 from the sendfile call.
346 - implement aio_msync, aio_mtouch.
347 - (libeio) tentatively support darwin in sendfile.
348
3493.31 Thu Nov 12 02:14:29 CET 2009
350 - fix result status documentation of aio_copy, aio_move.
351 - speed up object creation considerably by avoiding
352 hash lookups.
353
3543.3 Wed Aug 5 13:52:58 CEST 2009
355 - use common::sense.
356 - use common schmorp.h header.
357 - allow integers (file descriptors) in addition to file handles.
358 - take advantage of linux' eventfd (but it seems slower on smp?).
359 - use poll not select on posix platforms.
360
3613.261 Wed Jul 1 10:11:51 CEST 2009
362 - more 0S X workarounds (patch by Tokuhiro Matsuno).
363
3643.26 Tue Jun 30 09:33:26 CEST 2009
365 - 0S X of course claims to be posix 2008 but lacks posix_fadvise.
366 try to work around this horribly broken OS in a somewhat hackish
367 way. might help other os's too.
368
3693.25 Sat Jun 27 05:18:26 CEST 2009
370 - added IO::AIO::fadvise and IO::AIO::sendfile.
371 - (libeio) replaced quicksort+insertion sort by a tuned radix
372 sort + insertion sort, resulting in comparable runtime (usually
373 faster) to the old version, but without any ill side effects on
374 degenerated (for quicksort) data.
375 - (libeio) correctly sort dirs by inodes if we have perfect type
376 knowledge and DIRS_FIRST is used.
377 - (libeio) internally the wrong DT_* constants were used, but no
378 known system has differing EIO_DT_*/DT_* values, so not an issue.
379 - removed a (harmless) assert that was left over on the code
380 but should not have been.
381 - use more correct types (change IO length from IV to VAL64,
382 which makes a difference on systems without 64 bit perls).
383
3843.23 Sat Jun 13 16:57:58 CEST 2009
385 - fix off-by-one bug in aio_readdir that was introduced in the
386 rushed 3.22 release.
387
3883.22 Sat Jun 13 15:32:40 CEST 2009
389 - speed up readdirx sort algorithm slightly.
390 - bin/treescan was missing from distro tarball.
391
3923.21 Fri Jun 12 18:45:53 CEST 2009
393 - new options --dirs and --files for treescan.
394 - install bin/treescan by default.
395 - (libeio) aio_readdir can now be cancelled while executing.
396 - fix a printf format string for 64 bit systems (could lead
397 to problems on big endian 64 bit systems).
398 - do not use qsort() but our own algorithm: glibc initialises
399 the whole locale and I/O subsystem inside qsort, causing
400 a stack overflow on 32 bit machines. The new sort uses much less
401 stack and is more than twice as fast in typical situations.
402
4033.2 Sun Jun 7 20:30:05 CEST 2009
404 - (libeio) pwrite emulation was even more flawed than intended and did
405 not restore the file offset.
406 - add aio_readdirx, which can return inode and filetype and sort
407 the names in various ways.
408 - unfortunately, utime, chmod, chown on an open file that has just
409 been written can easily block, which caused aio_copy to block the
410 process. no more!
411 - no longer rely on dst path in aio_copy when futime is available.
412
4133.19 Tue Apr 21 22:05:21 CEST 2009
414 - more perl 5.10 workarounds for aio_read and write.
415 - aio_write no longer modifies the sv (if possible).
416 - aio_read now works correctly with magic values.
417
4183.18 Sun Apr 19 21:17:32 CEST 2009
419 - better diagnostics when some aio_* functions get passed an illegal fh.
420 - try to avoid crashes due to incompatible 5.10 API changes. grmbl.
421
4223.17 Thu Nov 20 08:45:36 CET 2008
423 - (libeio) added aio_sync_file_range (untested).
424 - add aio_busy to @IO::AIO::AIO_REQ.
425
4263.16 Wed Oct 22 18:28:01 CEST 2008
427 - use SvREFCNT_inc instead of SvREFCNT_inc_NN in a non-speed critical
428 part to improve portability to perl 5.8 (reported by szymon).
429
4303.15 Mon Oct 13 00:39:55 CEST 2008
431 - automatic removal of feeders was broken.
432 - (libeio) use a more robust method to detect whether a feeder
433 has added something to the group or not.
434
4353.1 Thu Oct 2 13:34:40 CEST 2008
436 - pre-deref the passed callback object, for increased speed
437 and decreased memory usage.
438 - call on_next_submit callback even for aio_group - impact unknown,
439 but seems more correct.
440 - $req->cb now returns the original callback.
441 - (libeio) pass EIO_GROUP/aio_group requests through the queue without
442 requiring a thread switch.
443 - (libeio) status code of aio_futime and aio_utime was always passed 0.
444 - do some other ยต-optimisations.
445
4463.07 Sat Aug 2 16:06:13 CEST 2008
447 - do not include LIBS in autoconf tests.
448
4493.06 Tue Jul 15 12:41:32 CEST 2008
450 - move preadwritelock definition before it's first reference,
451 to make it compile again on broken platforms (they still exist)
452 or badly cofngiured perls (redhat...), reported by Rob Bloodgood.
453
4543.05 Thu Jun 19 23:23:52 CEST 2008
455 - work around perl overriding readdir etc. with thread-unsafe
456 (sic!) versions.
457
4583.04 Wed Jun 18 01:35:38 CEST 2008
459 - (libeio) fix eio_mknod, which confused it's arguments.
460 - (libeio) do not use readdir_r, as Ulrich Drepper pointed out that this
461 is stupid.
462 - (libeio) fix eio__readahead prototype, patch by Jost Krieger.
463 - (libeio) fix a bug that could potentially cause IO::AIO
464 not to get initialised properly.
465
4663.03 Thu May 29 05:33:30 CEST 2008
467 - (libeio) correctly call pthread_attr_destroy ().
468 - (libeio) work around broken bsd headers once more.
469 - reduce shared library size again by not including wrappers.
470 - max_outstanding could cause poll to enter a busy-waiting loop.
471 - document the new IO::AIO::poll_cb result value.
472
4733.02 Mon May 12 02:32:02 CEST 2008
474 - fix a memory leak on aio_readlink.
475 - bring back working fchmod.
476 - nop and busy now set result to 0.
477 - set errno to ENOMEM when allocation fails.
478
4793.01 Sun May 11 03:07:03 CEST 2008
480 - (libeio) make it compile on systems without readahead or readdir_r.
481 - (libeio) improve configure check for readahead availability.
482 - do not try to link against -lrt.
483 - use a separate configure script for IO::AIO (not the libeio one).
484
4853.0 Sun May 11 00:57:14 CEST 2008
486 - added bin/treescan to the distribution.
487 - switched to using libeio.
488 - LOTS OF INCOMPATIBLE CHANGES:
489 - remove signal functionality, it is not worth the effort.
490 - max_outstanding no longer returns the previous number of requests.
491 - poll_cb no longer returns number of requests.
492
4932.62 Sat Apr 26 13:59:33 CEST 2008
494 - port to solaris perls configured for old posix
495 (analysed by Jost Krieger).
496 - keep a reference to the perl filehandle object in aio_close,
497 so it doesn't get closed prematurely, leading to ugly races.
498
4992.61 Wed Apr 16 18:45:02 CEST 2008
500 - fix treescan output duplication and improve output ordering.
501 also display files given on the commandline.
502 - use a different algorithm for aio_close that is faster
503 and probably has even lower chances of blocking.
504 - do our own stack memory management for threads - linux
505 allocates outrageous amounts of VM (not so bad unless you
506 use mlockall...), which severely limits the number of threads
507 on 32-bit arches: stack size is the larger of PTHREAD_STACK_MIN
508 and 4096 * sizeof (long) (usually this is 16..64k).
509
5102.6 Sun Mar 30 08:28:11 CEST 2008
511 - added aio_sync.
512 - added aio_pathsync.
513 - fix prototypes of (void) functions.
514
5152.51 Sat Oct 6 16:04:54 CEST 2007
516 - perlio isn't generally threadsafe, so aio_close could not work reliably.
517 aio_close now tries a safe hack that might not be that asynchronous
518 (see the manpage for details).
519 - discard callback return values as to not grow the stack endlessly
520 when poll_cb handles many requests without returning.
521 - minor code cleanups.
522
5232.5 Thu Oct 4 14:49:08 CEST 2007
524 - replaced _fd2fh with faster xs code.
525 - aio_close will now try to do "the right thing" and thus might
526 work sensibly for the very first time.
527
5282.41 Mon Sep 24 21:28:21 CEST 2007
529 - after fork, invest some work to make sure that the poll_fileno
530 stays stable (by dup2'ing the new fd over the old one), to make
531 it easier for programs/libs that don't control their forking
532 behaviour and cannot recreate their watchers.
533
5342.4 Sun Aug 5 18:44:22 CEST 2007
535 - add aio_truncate, aio_chmod, aio_chown, aio_utime (linux
536 successfully demonstrated that you can block on futimes...).
537 - allow undef as fileoffset for aio_read/write and use read/write(2)
538 internally (useful for sockets or O_APPEND handles).
539 - allow undef for length in aio_write.
540 - negative dataoffsets work as expected now in aio_read/aio_write.
541 - use NV instead of UV for 32 bit perls and file offsets, as NVs
542 have a larger range then.
543 - shared code between BDB and IO::AIO.
544 - aio_busy was completely broken. now fixed.
545 - readahead emulation now returns something.
546 - correctly set errno to ENOSYS on unimplemented functions
547 (should never happen, though).
548 - large changes to make it partially compile and run on win32,
549 but win32 lacks too much functionality, and perl overrides way
550 too many functions with crashing versions.
551
5522.33 Tue Jan 23 23:55:41 CET 2007
553 - fix install path (Andreas J. Koenig).
554
5552.32 Mon Jan 22 16:56:23 CET 2007
556 - added aio_rmtree.
557 - wow, aio_mkdir was missing.
558 - aio_load did return undef on error, not -1.
559 - use prefixexp not prefix in autoconf.pm
560 (suggested by ... rt.cpan.org unreachable).
561 - avoid installing autoconf.pm.
562
5632.31 Sat Jan 6 03:46:02 CET 2007
564 - added aio_load.
565
5662.3 Sat Dec 23 05:48:07 CET 2006
567 - fix off-by-one bug in aio_read, causing memory corruption
568 or crashes.
569
5702.21 Fri Dec 22 05:03:38 CET 2006
571 - minor doc updates.
572 - minor cleanups.
573 - IO::AIO::poll returns request count.
574 - undocumented and unfinished async-signal-reporting.
575
5762.2 Tue Oct 31 00:31:00 CET 2006
577 - minor doc updates.
578 - added aio_readlink.
579 - properly zero-terminate aio_read buffer.
580 - fix aio_read/write with nonzero dataoffset.
581 - reduced size of aio request structure.
582 - better diagnostics when pathnames etc. are not byte-encoded;
583 do not leak request in that case, either.
584
5852.1 Sun Oct 29 02:01:57 CET 2006
586 - INCOMPATIBLE CHANGE: replace IO::AIO::poll_some by
587 IO::AIO::max_poll_reqs and IO::AIO::max_poll_time.
588 - fix a bug in aio_move where it would fail everytime
589 it would have to copy files manually.
590 - doc updates.
591 - start threads only on (very low) demand.
592 - end superfluous threads automatically after 10s idling.
593 - add IO::AIO::max_idle to control this.
594 - some tuning applied to random places.
595 - add aio_mknod.
596
5972.0 Thu Oct 26 18:27:58 CEST 2006
598 - minor incompatibility: max_outstanding semantics have changed.
599 - major rewrite, consider all functionality EXPERIMENTAL.
600 - aio requests can be cancelled.
601 - callbacks can be (re-)set later.
602 - aio requests can choose between 9 priorities.
603 - add aio_group: aio requests can be grouped
604 into composite requests.
605 - generator interface for groups.
606 - add IO::AIO::poll_some.
607 - major documentation improvements.
608 - very minor bugfixes.
609 - add aio_nop for dummy requests.
610 - add aio_busy mainly for benchmarking and debugging.
611 - use "fast" mutexes on linux.
612 - use dynamic (and larger) buffers instead of
613 putting them onto the stack.
614 - optimise x86 and amd64 a bit.
615 - better error checking when ENOMEM.
616 - hopefully fix mem and dirp leaks on fork.
617 - warn about broken perl malloc.
618 - compiles on cygwin (but pread is broken on cygwin
619 which is not detected by autoconf, so you have to
620 edit autoconf/config.h yourself to enable emulation).
621
6221.8 Sat Jun 24 22:20:44 CEST 2006
623 - add and/or document aio_rename, aio_link, aio_symlink and aio_move.
624
6251.73 Wed Mar 1 22:49:32 CET 2006
626 - codename "jost"
627 - AIX/Solaris(?) aren't being helpful again, hardcode a value
628 for NAME_MAX and drive with your eyes closed (reported by
629 wcooley@nakedape.cc).
630
6311.72 Thu Feb 2 00:40:44 CET 2006
632 - another minor bug in aio_scandir, again, the callback was called
633 twice when the directory can't be stat'ed.
634
6351.71 Mon Dec 26 20:20:03 CET 2005
636 - grr, another minor bug in aio_scandir, this time resulting
637 in a runtime error.
638
6391.7 Mon Dec 26 19:29:48 CET 2005
640 - aio_scandir errornously called callback twice in some cases.
641 - added AnyEvent example.
642
6431.61 Wed Sep 7 19:40:42 CEST 2005
644 - no longer include $Config{libs}, as distros include too much
645 garbage in there that is not installed on typical systems
646 (for example, debian links perl against -lgdbm and many more
647 libraries despite perl not needing it, slowing down startup and
648 wasting memory).
649
6501.6 Tue Aug 30 17:44:44 CEST 2005
651 - added aio_readdir, aio_scandir.
652 - added aio_sendfile, including sendfile emulation when sendfile
4 when sendfile isn't available. Linux, FreeBSD and HP-UX might 653 isn't available. Linux, FreeBSD and HP-UX might work (sendfilev
5 work (sendfilev support is unavailable on my solaris 8 machine...). 654 support is unavailable on my solaris 8 machine, but preliminary
655 code is there. What's lacking is configury stuff and testing...).
6 656
71.5 Sat Aug 20 02:32:19 CEST 2005 6571.5 Sat Aug 20 02:32:19 CEST 2005
8 - create the aio threads on demand only. 658 - create the aio threads on demand only (good after forking).
9 - somebody nagged about C89 compatibility, so this release should 659 - somebody nagged about C89 compatibility, so this release should
10 be C89 compatible, but no guarantees for future ones. 660 be C89 compatible, but no guarantees for future ones.
11 - abort when the configure script fails. 661 - abort when the configure script fails.
12 662
131.4 Wed Aug 17 08:07:27 CEST 2005 6631.4 Wed Aug 17 08:07:27 CEST 2005
14 - forget to recreate the pipe after forking, this could cause 664 - forgot to recreate the pipe after forking, this could cause
15 deadlocks. 665 deadlocks.
16 666
171.3 Wed Aug 17 07:25:54 CEST 2005 6671.3 Wed Aug 17 07:25:54 CEST 2005
18 - properly propagate exceptions from callbacks, instead of silently 668 - properly propagate exceptions from callbacks, instead of silently
19 eating them. 669 eating them.

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