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Revision: 1.312
Committed: Mon Jun 10 01:50:24 2013 UTC (10 years, 11 months ago) by root
Branch: MAIN
Changes since 1.311: +9 -0 lines
Log Message:
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# Content
1 Revision history for IO::AIO
2
3 TODO: aio_cptree/mvtree
4 TODO: reduce condvar fairness: schedule hot-cache-threads first?
5 TODO: vmsplice? (http://kerneltrap.org/node/6505 http://lwn.net/Articles/178199/)
6 TODO: aio_fcntl, at least for file-locking
7 TODO: aio_mincore?
8 TODO: getxattr etc.?
9 TODO: F_DUPFD_CLOEXEC
10 TODO: emulation for splice?
11 TODO: eio_mmap|mlock|munmap|splice...
12 TODO: syncfs/sync windows:
13 http://stackoverflow.com/questions/65170/how-to-get-name-associated-with-open-handle/5286888#5286888
14 http://blogs.msdn.com/b/adioltean/archive/2005/04/16/408947.aspx
15 http://msdn.microsoft.com/en-us/library/aa366789%28v=vs.85%29.aspx
16 http://msdn.microsoft.com/en-us/library/windows/desktop/aa366789%28v=vs.85%29.aspx
17 http://msdn.microsoft.com/en-us/library/windows/desktop/aa364425%28v=vs.85%29.aspx
18 http://msdn.microsoft.com/en-us/library/windows/desktop/aa364963%28v=vs.85%29.aspx
19 http://msdn.microsoft.com/en-us/library/windows/desktop/aa364996%28v=vs.85%29.aspx
20 http://msdn.microsoft.com/en-us/library/windows/desktop/aa364994%28v=vs.85%29.aspx
21
22 - (libeio) implement aio_realpath for win32.
23 - (xthread) work around compile time bugs in ptw32.
24
25 4.19 Sun Jan 6 12:47:26 CET 2013
26 - avoid endless loop in fiemap with some XFS files.
27 - in aio_rename and aio_rmdir, specialcase the case of [$wd, "."]
28 and call rename/rmdir instead of renameat/unlinkat.
29
30 4.18 Thu Oct 11 07:01:26 CEST 2012
31 - fix unintended xthread_create by intentionalising it :)
32
33 4.17 Thu Oct 11 05:19:47 CEST 2012
34 - rename aio_fallocate to aio_allocate, to match documentation.
35 - add list of linux fsid values to aio_statvfs docs.
36 - work around a bug in btrfs' FIEMAP ioctl implementation.
37 - work around AIX bug: statvfs.f_fsid is a struct, not unsigned long
38 as per unix spec.
39
40 4.16 Tue Aug 14 05:39:03 CEST 2012
41 - aio_statvfs was wromgly marked for wd emulation, causing
42 it to malfunction for paths.
43 - fix a crash in aio_fiemap, when used on ranges without any
44 extents.
45 - work around linux kernel bug (at least in 3.2): kernel might
46 trash fiemap input arguments.
47 - work around linux kernel bug (at least in 3.2): kernel does not
48 set FIEMAP_EXTENT_LAST on last segment.
49 - work around linux kernel bug (at least in 3.2): kernel silently
50 truncates segment count if a file.
51 - make fh argument of IO::AIO::mmap optional, also add mmap/munmap
52 to quick overview.
53 - splice can corrupt data.
54 - (libeio) remove pread/pwrite emulation.
55 - do not grow mmaped scalars in aio_read.
56 - add FALLOC_FL_PUNCH_HOLE and document fallocate.
57 - provide pread/pwrite for win32, making it link again on native win32.
58
59 4.15 Tue Apr 10 06:59:00 CEST 2012
60 - always include linux/types.h for fiemap, for compatibility to
61 ancient systems (Paul Howarth).
62 - experimental support for IO::AIO::splice and ::tee (no aio_...).
63 - provide SEEK_HOLE and SEEK_DATA, if available.
64 - work around (again!) an immensely stupid bug in RHEL, defining
65 autoconf macros in linux system headers (analysed by Paul Howarth).
66
67 4.14 Sat Apr 7 02:45:18 CEST 2012
68 - fix stat structure usage on windows, which caused bogus stat results.
69 - (libeio) make readahead emulation behave more like actual readahead by never failing.
70 - new request aio_seek.
71 - new request aio_fiemap.
72 - autogenerate the #ifdef/#define 0 blocks for symbols we export.
73
74 4.12 Fri Dec 30 08:51:25 CET 2011
75 - realpath would return a random value if the name was too long,
76 instead of -1.
77 - port to c89.
78
79 4.11 Mon Oct 10 00:24:11 CEST 2011
80 - libeio didn't compile on !linux (Paul Howarth).
81
82 4.1 Sun Oct 9 10:24:11 CEST 2011
83 - IO::AIO did access uninitialised memory on unsuccessful stats.
84 - (libeio) added syncfs syscall wrapper.
85 - (libeio) set thread name on linux (ps -L/Hcx, top, gdb).
86 - (libeio) support multiple indepenent working directories.
87 - applied speling corrections by Nicholas Bamber.
88 - tune treescan #threads and #outstanding requests a bit.
89 - reduce the number of file descriptors in use at any one time
90 in treescan, to avoid running out of them (and using too much ram).
91 - take advantage of working directoriy abstractions
92 in aio_scandir and treescan.
93 - reduce compiled size by ~10% by not inlining some key functionality.
94 - added --progress switch to treescan.
95
96 4.0 Mon Jul 18 05:01:10 CEST 2011
97 - INCOMPATIBLE CHANGE: fork is no longer supported (indeed, it never was),
98 see FORK BEHAVIOUR in manpage for details.
99 - passes testsuite on win32 now and may actually work
100 (activestate 5.10.1 / MSVC6, YMMV).
101 - (libeio) fix a deadlock where a wakeup signal could be missed when
102 a timeout occured at the same time.
103 - (libeio) added realpath.
104 - (libeio) added fallocate.
105 - (libeio) disabling sendfile on darwin unfortunately broke the emulation.
106 - (libeio) do not acquire any locks when forking.
107 - (libeio) use fewer time() syscalls when waiting for new requests.
108
109 3.93 Wed Jun 29 23:44:18 CEST 2011
110 - ECB.H WAS MISSING.
111
112 3.92 Wed Jun 29 14:45:41 CEST 2011
113 - ecb.h was missing.
114
115 3.91 Wed Jun 29 13:24:42 CEST 2011
116 - (libeio) work around a Linux (and likely FreeBSD and other
117 kernels) bug where sendfile would not transfer all the requested
118 bytes on large transfers, using a heuristic.
119 - buggy sendfile caused aio_move/copy to sometimes fail for big
120 files (fortunately it checks that the whole file has been
121 transferred...)
122 - use libecb for higher performance and higher portability.
123 - (libeio) disable sendfile on darwin, it's too broken.
124 - disable fork tests on !linux, as only linux supports mixing
125 pthread and fork in perl.
126 - document the fact that fork doesn't work anymore when using
127 this module, on anything !GNU/Linux.
128 - increase timeout in t/04_fork.t, as too many CPAN-tester setups
129 run on a 0.1MHz cpu. Or so.
130
131 3.9 Fri May 27 02:43:47 CEST 2011
132 - (libeio) fix memory corruption in aio_readdirx for the flags
133 combination READDIR_STAT_ORDER | READDIR_DIRS_FIRST.
134 - add lots of newer POSIX and GNU/Linux-specific open
135 flags.
136
137 3.8 Sun Mar 27 12:25:33 CEST 2011
138 - use nonstandard but maybe-working-on-bsd fork technique.
139 - support a max_idle value of 0.
140 - support setting of idle timeout value (IO::AIO::idle_timeout).
141
142 3.72 Fri Feb 11 04:25:38 CET 2011
143 - use _POSIX_MEMLOCK_RANGE to detect mlock/munlock.
144 - aio_mknod always used a dev_t value of 0.
145 - new treescan option: --grep.
146 - add more S_IF macros, and major/minor/makedev "macros".
147
148 3.71 Thu Dec 30 08:18:46 CET 2010
149 - the numerical result value passed to callbacks did not stringify
150 correctly, due to internal reuse and failure to reset the sv flags.
151 - actually test for posix_[mf]advise, as at least uClibc defines
152 _POSIX_ADVISORY_INFO without actually having any of the required
153 funcitonality. ugh.
154
155 3.7 Mon Nov 1 23:00:34 CET 2010
156 - implement/add madvise, mmap, munmap, aio_mlockall, munlockall,
157 aio_mlock, munlock, msync and mtouch to @EXPORT_OK.
158 - document the sad state of affairs w.r.t. pthread on many bsds.
159 - do not enable mmap on systems without _POSIX_MAPPED_FILES
160 (openbsd 4.8).
161 - do not leak memory in IO::AIO::mmap when the scalar already
162 had string-data.
163 - add O_RDWR, O_APPEND and O_EXCL symbols and semi-document
164 them.
165 - cache the result IV, for a minor speedup in the common case.
166 - croak when an mmapped-scalar changes location, to detect
167 user-errors better.
168 - fix aio_readlink prototype.
169
170 3.65 Wed Mar 31 02:45:05 CEST 2010
171 - actually use PATH_MAX instead of NAME_MAX for readlink, as to not
172 cut off long pathnames in aio_readlink (based on patch by
173 Rasmus Andersson).
174 - a double fork partially killed the event pipe (great testcase
175 by dormando). affects IO::AIO, BDB and Async::Interrupt.
176 - suck steve's dick and rename our symbols to avoid colliding
177 with nonstandard identifier spam on the broken os x pseudo-os.
178 affects IO::AIO and BDB.
179
180 3.6 Mon Jan 11 00:43:39 CET 2010
181 - (libeio) more fixes for the freebsd/apple sendfile - broken by
182 manpage standards, but apparently correct accoridng to actual
183 kernel sources.
184 - add IO::AIO::mmap/munmap support.
185 - add IO::AIO::m(un)lockall support.
186 - clean up manpage.
187
188 3.5 Thu Jan 7 21:25:04 CET 2010
189 - (liebio) fix freebsd sendfile (Vanilla Hsu).
190 - (libeio) also fix darwin sendfile that suffered from a similar bug.
191 - add aio_statvfs as interface to statvfs/fstatvfs.
192 - work around buggy symlink() on cygwin in the testsuite.
193 - wtf. freebsd-8.0 actually passes the testsuite! I knew
194 they could implement fork and semaphores one day! cheers!
195
196 3.4 Sat Jan 2 15:13:04 CET 2010
197 - (libeio) max_poll_time was not properly converted to ticks.
198 - clarify cancel_subs description.
199 - IO::AIO::sendfile did not actually return the return value
200 from the sendfile call.
201 - implement aio_msync, aio_mtouch.
202 - (libeio) tentatively support darwin in sendfile.
203
204 3.31 Thu Nov 12 02:14:29 CET 2009
205 - fix result status documentation of aio_copy, aio_move.
206 - speed up object creation considerably by avoiding
207 hash lookups.
208
209 3.3 Wed Aug 5 13:52:58 CEST 2009
210 - use common::sense.
211 - use common schmorp.h header.
212 - allow integers (file descriptors) in addition to file handles.
213 - take advantage of linux' eventfd (but it seems slower on smp?).
214 - use poll not select on posix platforms.
215
216 3.261 Wed Jul 1 10:11:51 CEST 2009
217 - more 0S X workarounds (patch by Tokuhiro Matsuno).
218
219 3.26 Tue Jun 30 09:33:26 CEST 2009
220 - 0S X of course claims to be posix 2008 but lacks posix_fadvise.
221 try to work around this horribly broken OS in a somewhat hackish
222 way. might help other os's too.
223
224 3.25 Sat Jun 27 05:18:26 CEST 2009
225 - added IO::AIO::fadvise and IO::AIO::sendfile.
226 - (libeio) replaced quicksort+insertion sort by a tuned radix
227 sort + insertion sort, resulting in comparable runtime (usually
228 faster) to the old version, but without any ill side effects on
229 degenerated (for quicksort) data.
230 - (libeio) correctly sort dirs by inodes if we have perfect type
231 knowledge and DIRS_FIRST is used.
232 - (libeio) internally the wrong DT_* constants were used, but no
233 known system has differing EIO_DT_*/DT_* values, so not an issue.
234 - removed a (harmless) assert that was left over on the code
235 but should not have been.
236 - use more correct types (change IO length from IV to VAL64,
237 which makes a difference on systems without 64 bit perls).
238
239 3.23 Sat Jun 13 16:57:58 CEST 2009
240 - fix off-by-one bug in aio_readdir that was introduced in the
241 rushed 3.22 release.
242
243 3.22 Sat Jun 13 15:32:40 CEST 2009
244 - speed up readdirx sort algorithm slightly.
245 - bin/treescan was missing from distro tarball.
246
247 3.21 Fri Jun 12 18:45:53 CEST 2009
248 - new options --dirs and --files for treescan.
249 - install bin/treescan by default.
250 - (libeio) aio_readdir can now be cancelled while executing.
251 - fix a printf format string for 64 bit systems (could lead
252 to problems on big endian 64 bit systems).
253 - do not use qsort() but our own algorithm: glibc initialises
254 the whole locale and I/O subsystem inside qsort, causing
255 a stack overflow on 32 bit machines. The new sort uses much less
256 stack and is more than twice as fast in typical situations.
257
258 3.2 Sun Jun 7 20:30:05 CEST 2009
259 - (libeio) pwrite emulation was even more flawed than intended and did
260 not restore the file offset.
261 - add aio_readdirx, which can return inode and filetype and sort
262 the names in various ways.
263 - unfortunately, utime, chmod, chown on an open file that has just
264 been written can easily block, which caused aio_copy to block the
265 process. no more!
266 - no longer rely on dst path in aio_copy when futime is available.
267
268 3.19 Tue Apr 21 22:05:21 CEST 2009
269 - more perl 5.10 workarounds for aio_read and write.
270 - aio_write no longer modifies the sv (if possible).
271 - aio_read now works correctly with magic values.
272
273 3.18 Sun Apr 19 21:17:32 CEST 2009
274 - better diagnostics when some aio_* functions get passed an illegal fh.
275 - try to avoid crashes due to incompatible 5.10 API changes. grmbl.
276
277 3.17 Thu Nov 20 08:45:36 CET 2008
278 - (libeio) added aio_sync_file_range (untested).
279 - add aio_busy to @IO::AIO::AIO_REQ.
280
281 3.16 Wed Oct 22 18:28:01 CEST 2008
282 - use SvREFCNT_inc instead of SvREFCNT_inc_NN in a non-speed critical
283 part to improve portability to perl 5.8 (reported by szymon).
284
285 3.15 Mon Oct 13 00:39:55 CEST 2008
286 - automatic removal of feeders was broken.
287 - (libeio) use a more robust method to detect whether a feeder
288 has added something to the group or not.
289
290 3.1 Thu Oct 2 13:34:40 CEST 2008
291 - pre-deref the passed callback object, for increased speed
292 and decreased memory usage.
293 - call on_next_submit callback even for aio_group - impact unknown,
294 but seems more correct.
295 - $req->cb now returns the original callback.
296 - (libeio) pass EIO_GROUP/aio_group requests through the queue without
297 requiring a thread switch.
298 - (libeio) status code of aio_futime and aio_utime was always passed 0.
299 - do some other µ-optimisations.
300
301 3.07 Sat Aug 2 16:06:13 CEST 2008
302 - do not include LIBS in autoconf tests.
303
304 3.06 Tue Jul 15 12:41:32 CEST 2008
305 - move preadwritelock definition before it's first reference,
306 to make it compile again on broken platforms (they still exist)
307 or badly cofngiured perls (redhat...), reported by Rob Bloodgood.
308
309 3.05 Thu Jun 19 23:23:52 CEST 2008
310 - work around perl overriding readdir etc. with thread-unsafe
311 (sic!) versions.
312
313 3.04 Wed Jun 18 01:35:38 CEST 2008
314 - (libeio) fix eio_mknod, which confused it's arguments.
315 - (libeio) do not use readdir_r, as Ulrich Drepper pointed out that this
316 is stupid.
317 - (libeio) fix eio__readahead prototype, patch by Jost Krieger.
318 - (libeio) fix a bug that could potentially cause IO::AIO
319 not to get initialised properly.
320
321 3.03 Thu May 29 05:33:30 CEST 2008
322 - (libeio) correctly call pthread_attr_destroy ().
323 - (libeio) work around broken bsd headers once more.
324 - reduce shared library size again by not including wrappers.
325 - max_outstanding could cause poll to enter a busy-waiting loop.
326 - document the new IO::AIO::poll_cb result value.
327
328 3.02 Mon May 12 02:32:02 CEST 2008
329 - fix a memory leak on aio_readlink.
330 - bring back working fchmod.
331 - nop and busy now set result to 0.
332 - set errno to ENOMEM when allocation fails.
333
334 3.01 Sun May 11 03:07:03 CEST 2008
335 - (libeio) make it compile on systems without readahead or readdir_r.
336 - (libeio) improve configure check for readahead availability.
337 - do not try to link against -lrt.
338 - use a separate configure script for IO::AIO (not the libeio one).
339
340 3.0 Sun May 11 00:57:14 CEST 2008
341 - added bin/treescan to the distribution.
342 - switched to using libeio.
343 - LOTS OF INCOMPATIBLE CHANGES:
344 - remove signal functionality, it is not worth the effort.
345 - max_outstanding no longer returns the previous number of requests.
346 - poll_cb no longer returns number of requests.
347
348 2.62 Sat Apr 26 13:59:33 CEST 2008
349 - port to solaris perls configured for old posix
350 (analysed by Jost Krieger).
351 - keep a reference to the perl filehandle object in aio_close,
352 so it doesn't get closed prematurely, leading to ugly races.
353
354 2.61 Wed Apr 16 18:45:02 CEST 2008
355 - fix treescan output duplication and improve output ordering.
356 also display files given on the commandline.
357 - use a different algorithm for aio_close that is faster
358 and probably has even lower chances of blocking.
359 - do our own stack memory management for threads - linux
360 allocates outrageous amounts of VM (not so bad unless you
361 use mlockall...), which severely limits the number of threads
362 on 32-bit arches: stack size is the larger of PTHREAD_STACK_MIN
363 and 4096 * sizeof (long) (usually this is 16..64k).
364
365 2.6 Sun Mar 30 08:28:11 CEST 2008
366 - added aio_sync.
367 - added aio_pathsync.
368 - fix prototypes of (void) functions.
369
370 2.51 Sat Oct 6 16:04:54 CEST 2007
371 - perlio isn't generally threadsafe, so aio_close could not work reliably.
372 aio_close now tries a safe hack that might not be that asynchronous
373 (see the manpage for details).
374 - discard callback return values as to not grow the stack endlessly
375 when poll_cb handles many requests without returning.
376 - minor code cleanups.
377
378 2.5 Thu Oct 4 14:49:08 CEST 2007
379 - replaced _fd2fh with faster xs code.
380 - aio_close will now try to do "the right thing" and thus might
381 work sensibly for the very first time.
382
383 2.41 Mon Sep 24 21:28:21 CEST 2007
384 - after fork, invest some work to make sure that the poll_fileno
385 stays stable (by dup2'ing the new fd over the old one), to make
386 it easier for programs/libs that don't control their forking
387 behaviour and cannot recreate their watchers.
388
389 2.4 Sun Aug 5 18:44:22 CEST 2007
390 - add aio_truncate, aio_chmod, aio_chown, aio_utime (linux
391 successfully demonstrated that you can block on futimes...).
392 - allow undef as fileoffset for aio_read/write and use read/write(2)
393 internally (useful for sockets or O_APPEND handles).
394 - allow undef for length in aio_write.
395 - negative dataoffsets work as expected now in aio_read/aio_write.
396 - use NV instead of UV for 32 bit perls and file offsets, as NVs
397 have a larger range then.
398 - shared code between BDB and IO::AIO.
399 - aio_busy was completely broken. now fixed.
400 - readahead emulation now returns something.
401 - correctly set errno to ENOSYS on unimplemented functions
402 (should never happen, though).
403 - large changes to make it partially compile and run on win32,
404 but win32 lacks too much functionality, and perl overrides way
405 too many functions with crashing versions.
406
407 2.33 Tue Jan 23 23:55:41 CET 2007
408 - fix install path (Andreas J. Koenig).
409
410 2.32 Mon Jan 22 16:56:23 CET 2007
411 - added aio_rmtree.
412 - wow, aio_mkdir was missing.
413 - aio_load did return undef on error, not -1.
414 - use prefixexp not prefix in autoconf.pm
415 (suggested by ... rt.cpan.org unreachable).
416 - avoid installing autoconf.pm.
417
418 2.31 Sat Jan 6 03:46:02 CET 2007
419 - added aio_load.
420
421 2.3 Sat Dec 23 05:48:07 CET 2006
422 - fix off-by-one bug in aio_read, causing memory corruption
423 or crashes.
424
425 2.21 Fri Dec 22 05:03:38 CET 2006
426 - minor doc updates.
427 - minor cleanups.
428 - IO::AIO::poll returns request count.
429 - undocumented and unfinished async-signal-reporting.
430
431 2.2 Tue Oct 31 00:31:00 CET 2006
432 - minor doc updates.
433 - added aio_readlink.
434 - properly zero-terminate aio_read buffer.
435 - fix aio_read/write with nonzero dataoffset.
436 - reduced size of aio request structure.
437 - better diagnostics when pathnames etc. are not byte-encoded;
438 do not leak request in that case, either.
439
440 2.1 Sun Oct 29 02:01:57 CET 2006
441 - INCOMPATIBLE CHANGE: replace IO::AIO::poll_some by
442 IO::AIO::max_poll_reqs and IO::AIO::max_poll_time.
443 - fix a bug in aio_move where it would fail everytime
444 it would have to copy files manually.
445 - doc updates.
446 - start threads only on (very low) demand.
447 - end superfluous threads automatically after 10s idling.
448 - add IO::AIO::max_idle to control this.
449 - some tuning applied to random places.
450 - add aio_mknod.
451
452 2.0 Thu Oct 26 18:27:58 CEST 2006
453 - minor incompatibility: max_outstanding semantics have changed.
454 - major rewrite, consider all functionality EXPERIMENTAL.
455 - aio requests can be cancelled.
456 - callbacks can be (re-)set later.
457 - aio requests can choose between 9 priorities.
458 - add aio_group: aio requests can be grouped
459 into composite requests.
460 - generator interface for groups.
461 - add IO::AIO::poll_some.
462 - major documentation improvements.
463 - very minor bugfixes.
464 - add aio_nop for dummy requests.
465 - add aio_busy mainly for benchmarking and debugging.
466 - use "fast" mutexes on linux.
467 - use dynamic (and larger) buffers instead of
468 putting them onto the stack.
469 - optimise x86 and amd64 a bit.
470 - better error checking when ENOMEM.
471 - hopefully fix mem and dirp leaks on fork.
472 - warn about broken perl malloc.
473 - compiles on cygwin (but pread is broken on cygwin
474 which is not detected by autoconf, so you have to
475 edit autoconf/config.h yourself to enable emulation).
476
477 1.8 Sat Jun 24 22:20:44 CEST 2006
478 - add and/or document aio_rename, aio_link, aio_symlink and aio_move.
479
480 1.73 Wed Mar 1 22:49:32 CET 2006
481 - codename "jost"
482 - AIX/Solaris(?) aren't being helpful again, hardcode a value
483 for NAME_MAX and drive with your eyes closed (reported by
484 wcooley@nakedape.cc).
485
486 1.72 Thu Feb 2 00:40:44 CET 2006
487 - another minor bug in aio_scandir, again, the callback was called
488 twice when the directory can't be stat'ed.
489
490 1.71 Mon Dec 26 20:20:03 CET 2005
491 - grr, another minor bug in aio_scandir, this time resulting
492 in a runtime error.
493
494 1.7 Mon Dec 26 19:29:48 CET 2005
495 - aio_scandir errornously called callback twice in some cases.
496 - added AnyEvent example.
497
498 1.61 Wed Sep 7 19:40:42 CEST 2005
499 - no longer include $Config{libs}, as distros include too much
500 garbage in there that is not installed on typical systems
501 (for example, debian links perl against -lgdbm and many more
502 libraries despite perl not needing it, slowing down startup and
503 wasting memory).
504
505 1.6 Tue Aug 30 17:44:44 CEST 2005
506 - added aio_readdir, aio_scandir.
507 - added aio_sendfile, including sendfile emulation when sendfile
508 isn't available. Linux, FreeBSD and HP-UX might work (sendfilev
509 support is unavailable on my solaris 8 machine, but preliminary
510 code is there. What's lacking is configury stuff and testing...).
511
512 1.5 Sat Aug 20 02:32:19 CEST 2005
513 - create the aio threads on demand only (good after forking).
514 - somebody nagged about C89 compatibility, so this release should
515 be C89 compatible, but no guarantees for future ones.
516 - abort when the configure script fails.
517
518 1.4 Wed Aug 17 08:07:27 CEST 2005
519 - forgot to recreate the pipe after forking, this could cause
520 deadlocks.
521
522 1.3 Wed Aug 17 07:25:54 CEST 2005
523 - properly propagate exceptions from callbacks, instead of silently
524 eating them.
525 - use a different fork algorithm that avoids recursive callback
526 invocations and reduces fork latency in busy processes.
527 - fix a bug where the buffer scalar in aio_read got assigned the wrong
528 length after reading.
529 - fix a bug where the child would process some outstanding requests
530 from the parent.
531 - make a copy of the callback scalar, to avoid some very uncommon
532 (but valid) usages where the callback scalar changes.
533 - the callback was never freed in aio_read/aio_write.
534 - aio_read/aio_write will now set the readonly flag on the data
535 scalar for better error reporting.
536
537 1.2 Wed Aug 17 01:22:58 CEST 2005
538 - verified on cygwin, linux/amd64+ia32+alpha, solaris.
539 - use SvPVbyte for filenames now. You *need* to encode your strings to
540 the external filename encoding first.
541 - fix the bug where filehandles could leak (again).
542 - clarify freebsd situation: make it work and tell me how, or go away
543 with your underdocumented, broken and outdated OS.
544 - fork'ing should now be officially supported (where linux and
545 posix contradict each other, I followed posix).
546 - only call read() once per poll, not twice (speedup).
547 - new functions: aio_rmdir, aio_symlink.
548 - force callback arguments to be undef or a reference, for better
549 error catching.
550
551 1.1 Sun Aug 7 05:27:23 CEST 2005
552 - added configure script to detect availability of some calls.
553 (imperfect, as we cannot detect things like -lrt due to missing
554 feedback yet).
555 - emulate fdatasync via fsync, pread/pwrite via unsafe read/write
556 and readahead via manual reading on platforms lacking those.
557 - ported t/03_errors.t+framework by Brad Fitzpatrick
558 from Linux::AIO.
559 - removed XOPEN_SOURCE because stupid solaris 9 doesn't
560 compile with it enabled. Probably breaks others. Oh well.
561 - try to be more careful with errno on non-threaded perls.
562 - cygwins perl insisted on a matching open mode when morphing
563 the fd to an fh.
564 - convert sv's to "byte" encoding in aio_read/aio_write. Might
565 do that for pathnames, too, in the future, so make sure you
566 properly encode your pathnames.
567
568 1.0 Fri Jul 22 10:43:30 CEST 2005
569 - aio_open did not reliably deliver (open) filehandles.
570 - all aio_*-functions keep a reference to the filehandle so
571 it doesn't go away while the aio requests is working on it.
572 - disable warnings in AIO.pm.
573
574 0.9 Wed Jul 20 23:55:04 CEST 2005
575 - allow recursive calls to poll_cb, use less locking calls, too.
576 - fix the Gtk2-example in the SYNOPSIS.
577 - use pread/pwrite not pread64/pwrite64. this was simply a leftover
578 from Linux::AIO.
579 (found by compiling on cygwin. Unfortunately, cygwin declares but
580 does not implement pread/pwrite).
581 - only include <sys/syscall.h> on linux.
582
583 0.5 Tue Jul 12 13:03:09 CEST 2005
584 - removed #include <endian.h>, it's not portable, and we don't
585 need it anyway.
586 - link against -lrt, as it might contain goodies such as fdatasync,
587 and often aio_read, which we do not use yet, but it shouldn't hurt.
588
589 0.4 Mon Jul 11 05:28:25 CEST 2005
590 - added IO::AIO::flush, IO::AIO::poll.
591 - make callback argument optional for all calls.
592
593 0.3 Mon Jul 11 01:42:37 CEST 2005
594 - restructured manpage.
595 - added SYNOPSIS with examples for Event, Glib, Tk.
596 - remove explicit context support so I don't have to maintain
597 it for threaded perls (i.e. it should work now :).
598
599 0.2 Sun Jul 10 22:57:12 CEST 2005
600 - return immediately from poll_wait if nreqs==0.
601 - get rid of the request pipe and use faster thread-thread
602 communications for most requests and responses.
603
604 0.1
605 - cloned from Linux::AIO, which is very similar.
606