[ViewVC] Annotation of: cvs/IO-AIO/Changes

Revision history for IO::AIO

TODO: better autoconf.pm that can return LIBS etc.
TODO: aio_cptree/mvtree
TODO: reduce condvar fairness: schedule hot-cache-threads first?
TODO: splice/tee/vmsplice/sync_file_range? (http://kerneltrap.org/node/6505 http://lwn.net/Articles/178199/)
TODO: aio_fcntl, at least for file-locking

        - (libeio) make it compile on systems without readahead.
        - (libeio) improve configure check for readahead availability.
        - do not try to link against -lrt.
        - use a separate configure script for IO::AIO (not the libeio one).

3.0  Sun May 11 00:57:14 CEST 2008
        - added bin/treescan to the distribution.
        - switched to using libeio.
        - LOTS OF INCOMPATIBLE CHANGES:
          - remove signal functionality, it is not worth the effort.
          - max_outstanding no longer returns the previous number of requests.
          - poll_cb no longer returns number of requests.

2.62 Sat Apr 26 13:59:33 CEST 2008
        - port to solaris perls configured for old posix
          (analysed by Jost Krieger).
        - keep a reference to the perl filehandle object in aio_close,
          so it doesn't get closed prematurely, leading to ugly races.

2.61 Wed Apr 16 18:45:02 CEST 2008
        - fix treescan output duplication and improve output ordering.
          also display files given on the commandline.
        - use a different algorithm for aio_close that is faster
          and probably has even lower chances of blocking.
        - do our own stack memory management for threads - linux
          allocates outrageous amounts of VM (not so bad unless you
          use mlockall...), which severely limits the number of threads
          on 32-bit arches: stack size is the larger of PTHREAD_STACK_MIN
          and 4096 * sizeof (long) (usually this is 16..64k).

2.6  Sun Mar 30 08:28:11 CEST 2008
        - added aio_sync.
        - added aio_pathsync.
        - fix prototypes of (void) functions.

2.51 Sat Oct  6 16:04:54 CEST 2007
        - perlio isn't generally threadsafe, so aio_close could not work reliably.
          aio_close now tries a safe hack that might not be that asynchronous
          (see the manpage for details).
        - discard callback return values as to not grow the stack endlessly
          when poll_cb handles many requests without returning.
        - minor code cleanups.

2.5  Thu Oct  4 14:49:08 CEST 2007
        - replaced _fd2fh with faster xs code.
        - aio_close will now try to do "the right thing" and thus might
          work sensibly for the very first time.

2.41 Mon Sep 24 21:28:21 CEST 2007
        - after fork, invest some work to make sure that the poll_fileno
          stays stable (by dup2'ing the new fd over the old one), to make
          it easier for programs/libs that don't control their forking
          behaviour and cannot recreate their watchers.

2.4  Sun Aug  5 18:44:22 CEST 2007
        - add aio_truncate, aio_chmod, aio_chown, aio_utime (linux
          successfully demonstrated that you can block on futimes...).
        - allow undef as fileoffset for aio_read/write and use read/write(2)
          internally (useful for sockets or O_APPEND handles).
        - allow undef for length in aio_write.
        - negative dataoffsets work as expected now in aio_read/aio_write.
        - use NV instead of UV for 32 bit perls and file offsets, as NVs
          have a larger range then.
        - shared code between BDB and IO::AIO.
        - aio_busy was completely broken. now fixed.
        - readahead emulation now returns something.
        - correctly set errno to ENOSYS on unimplemented functions
          (should never happen, though).
        - large changes to make it partially compile and run on win32,
          but win32 lacks too much functionality, and perl overrides way
          too many functions with crashing versions.

2.33 Tue Jan 23 23:55:41 CET 2007
        - fix install path (Andreas J. Koenig).

2.32 Mon Jan 22 16:56:23 CET 2007
        - added aio_rmtree.
        - wow, aio_mkdir was missing.
        - aio_load did return undef on error, not -1.
        - use prefixexp not prefix in autoconf.pm
          (suggested by ... rt.cpan.org unreachable).
        - avoid installing autoconf.pm.

2.31 Sat Jan  6 03:46:02 CET 2007
        - added aio_load.

2.3  Sat Dec 23 05:48:07 CET 2006
        - fix off-by-one bug in aio_read, causing memory corruption
          or crashes.

2.21  Fri Dec 22 05:03:38 CET 2006
        - minor doc updates.
        - minor cleanups.
        - IO::AIO::poll returns request count.
        - undocumented and unfinished async-signal-reporting.

2.2  Tue Oct 31 00:31:00 CET 2006
        - minor doc updates.
        - added aio_readlink.
        - properly zero-terminate aio_read buffer.
        - fix aio_read/write with nonzero dataoffset.
        - reduced size of aio request structure.
        - better diagnostics when pathnames etc. are not byte-encoded;
          do not leak request in that case, either.

2.1  Sun Oct 29 02:01:57 CET 2006
        - INCOMPATIBLE CHANGE: replace IO::AIO::poll_some by
          IO::AIO::max_poll_reqs and IO::AIO::max_poll_time.
        - fix a bug in aio_move where it would fail everytime
          it would have to copy files manually.
        - doc updates.
        - start threads only on (very low) demand.
        - end superfluous threads automatically after 10s idling.
        - add IO::AIO::max_idle to control this.
        - some tuning applied to random places.
        - add aio_mknod.

2.0  Thu Oct 26 18:27:58 CEST 2006
        - minor incompatibility: max_outstanding semantics have changed.
        - major rewrite, consider all functionality EXPERIMENTAL.
        - aio requests can be cancelled.
        - callbacks can be (re-)set later.
        - aio requests can choose between 9 priorities.
        - add aio_group: aio requests can be grouped
          into composite requests.
        - generator interface for groups.
        - add IO::AIO::poll_some.
        - major documentation improvements.
        - very minor bugfixes.
        - add aio_nop for dummy requests.
        - add aio_busy mainly for benchmarking and debugging.
        - use "fast" mutexes on linux.
        - use dynamic (and larger) buffers instead of
          putting them onto the stack.
        - optimise x86 and amd64 a bit.
        - better error checking when ENOMEM.
        - hopefully fix mem and dirp leaks on fork.
        - warn about broken perl malloc.
        - compiles on cygwin (but pread is broken on cygwin
          which is not detected by autoconf, so you have to
          edit autoconf/config.h yourself to enable emulation).

1.8  Sat Jun 24 22:20:44 CEST 2006
        - add and/or document aio_rename, aio_link, aio_symlink and aio_move.

1.73 Wed Mar  1 22:49:32 CET 2006
        - codename "jost"
        - AIX/Solaris(?) aren't being helpful again, hardcode a value
          for NAME_MAX and drive with your eyes closed (reported by
          wcooley@nakedape.cc).

1.72 Thu Feb  2 00:40:44 CET 2006
        - another minor bug in aio_scandir, again, the callback was called
          twice when the directory can't be stat'ed.

1.71 Mon Dec 26 20:20:03 CET 2005
        - grr, another minor bug in aio_scandir, this time resulting
          in a runtime error.

1.7  Mon Dec 26 19:29:48 CET 2005
        - aio_scandir errornously called callback twice in some cases.
        - added AnyEvent example.

1.61 Wed Sep  7 19:40:42 CEST 2005
        - no longer include $Config{libs}, as distros include too much
          garbage in there that is not installed on typical systems
          (for example, debian links perl against -lgdbm and many more
          libraries despite perl not needing it, slowing down startup and
          wasting memory).

1.6  Tue Aug 30 17:44:44 CEST 2005
        - added aio_readdir, aio_scandir.
        - added aio_sendfile, including sendfile emulation when sendfile
          isn't available. Linux, FreeBSD and HP-UX might work (sendfilev
          support is unavailable on my solaris 8 machine, but preliminary
          code is there. What's lacking is configury stuff and testing...).

1.5  Sat Aug 20 02:32:19 CEST 2005
        - create the aio threads on demand only (good after forking).
        - somebody nagged about C89 compatibility, so this release should
          be C89 compatible, but no guarantees for future ones.
        - abort when the configure script fails.

1.4  Wed Aug 17 08:07:27 CEST 2005
        - forgot to recreate the pipe after forking, this could cause
          deadlocks.

1.3  Wed Aug 17 07:25:54 CEST 2005
        - properly propagate exceptions from callbacks, instead of silently
          eating them.
        - use a different fork algorithm that avoids recursive callback
          invocations and reduces fork latency in busy processes.
        - fix a bug where the buffer scalar in aio_read got assigned the wrong
          length after reading.
        - fix a bug where the child would process some outstanding requests
          from the parent.
        - make a copy of the callback scalar, to avoid some very uncommon
          (but valid) usages where the callback scalar changes.
        - the callback was never freed in aio_read/aio_write.
        - aio_read/aio_write will now set the readonly flag on the data
          scalar for better error reporting.

1.2  Wed Aug 17 01:22:58 CEST 2005
        - verified on cygwin, linux/amd64+ia32+alpha, solaris.
        - use SvPVbyte for filenames now. You *need* to encode your strings to
          the external filename encoding first.
        - fix the bug where filehandles could leak (again).
        - clarify freebsd situation: make it work and tell me how, or go away
          with your underdocumented, broken and outdated OS.
        - fork'ing should now be officially supported (where linux and
          posix contradict each other, I followed posix).
        - only call read() once per poll, not twice (speedup).
        - new functions: aio_rmdir, aio_symlink.
        - force callback arguments to be undef or a reference, for better
          error catching.

1.1  Sun Aug  7 05:27:23 CEST 2005
        - added configure script to detect availability of some calls.
          (imperfect, as we cannot detect things like -lrt due to missing
          feedback yet).
        - emulate fdatasync via fsync, pread/pwrite via unsafe read/write
          and readahead via manual reading on platforms lacking those.
        - ported t/03_errors.t+framework by Brad Fitzpatrick
          from Linux::AIO.
        - removed XOPEN_SOURCE because stupid solaris 9 doesn't
          compile with it enabled. Probably breaks others. Oh well.
        - try to be more careful with errno on non-threaded perls.
        - cygwins perl insisted on a matching open mode when morphing
          the fd to an fh.
        - convert sv's to "byte" encoding in aio_read/aio_write. Might
          do that for pathnames, too, in the future, so make sure you
          properly encode your pathnames.

1.0  Fri Jul 22 10:43:30 CEST 2005
        - aio_open did not reliably deliver (open) filehandles.
        - all aio_*-functions keep a reference to the filehandle so
          it doesn't go away while the aio requests is working on it.
        - disable warnings in AIO.pm.

0.9  Wed Jul 20 23:55:04 CEST 2005
        - allow recursive calls to poll_cb, use less locking calls, too.
        - fix the Gtk2-example in the SYNOPSIS.
        - use pread/pwrite not pread64/pwrite64. this was simply a leftover
          from Linux::AIO.
          (found by compiling on cygwin. Unfortunately, cygwin declares but
          does not implement pread/pwrite).
        - only include <sys/syscall.h> on linux.

0.5  Tue Jul 12 13:03:09 CEST 2005
        - removed #include <endian.h>, it's not portable, and we don't
          need it anyway.
        - link against -lrt, as it might contain goodies such as fdatasync,
          and often aio_read, which we do not use yet, but it shouldn't hurt.

0.4  Mon Jul 11 05:28:25 CEST 2005
        - added IO::AIO::flush, IO::AIO::poll.
        - make callback argument optional for all calls.

0.3  Mon Jul 11 01:42:37 CEST 2005
        - restructured manpage.
        - added SYNOPSIS with examples for Event, Glib, Tk.
        - remove explicit context support so I don't have to maintain
          it for threaded perls (i.e. it should work now :).

0.2  Sun Jul 10 22:57:12 CEST 2005
        - return immediately from poll_wait if nreqs==0.
        - get rid of the request pipe and use faster thread-thread
          communications for most requests and responses.

0.1
        - cloned from Linux::AIO, which is very similar.

Revision:	1.148
Committed:	Sun May 11 01:00:03 2008 UTC (16 years ago) by root
Branch:	MAIN
Changes since 1.147:	+3 -0 lines
Log Message:	* empty log message *
#	User	Rev	Content
1	root	1.31	Revision history for IO::AIO
2	root	1.30
3	root	1.59	TODO: better autoconf.pm that can return LIBS etc.
4	root	1.114	TODO: aio_cptree/mvtree
5	root	1.106	TODO: reduce condvar fairness: schedule hot-cache-threads first?
6	root	1.123	TODO: splice/tee/vmsplice/sync_file_range? (http://kerneltrap.org/node/6505 http://lwn.net/Articles/178199/)
7	root	1.136	TODO: aio_fcntl, at least for file-locking
8	root	1.100
9	root	1.148	- (libeio) make it compile on systems without readahead.
10			- (libeio) improve configure check for readahead availability.
11			- do not try to link against -lrt.
12	root	1.147	- use a separate configure script for IO::AIO (not the libeio one).
13
14	root	1.146	3.0 Sun May 11 00:57:14 CEST 2008
15	root	1.145	- added bin/treescan to the distribution.
16			- switched to using libeio.
17			- LOTS OF INCOMPATIBLE CHANGES:
18			- remove signal functionality, it is not worth the effort.
19			- max_outstanding no longer returns the previous number of requests.
20			- poll_cb no longer returns number of requests.
21	root	1.143
22	root	1.142	2.62 Sat Apr 26 13:59:33 CEST 2008
23	root	1.141	- port to solaris perls configured for old posix
24			(analysed by Jost Krieger).
25	root	1.142	- keep a reference to the perl filehandle object in aio_close,
26			so it doesn't get closed prematurely, leading to ugly races.
27	root	1.141
28	root	1.140	2.61 Wed Apr 16 18:45:02 CEST 2008
29	root	1.137	- fix treescan output duplication and improve output ordering.
30			also display files given on the commandline.
31	root	1.140	- use a different algorithm for aio_close that is faster
32			and probably has even lower chances of blocking.
33	root	1.138	- do our own stack memory management for threads - linux
34			allocates outrageous amounts of VM (not so bad unless you
35			use mlockall...), which severely limits the number of threads
36	root	1.139	on 32-bit arches: stack size is the larger of PTHREAD_STACK_MIN
37			and 4096 * sizeof (long) (usually this is 16..64k).
38	root	1.137
39	root	1.136	2.6 Sun Mar 30 08:28:11 CEST 2008
40	root	1.134	- added aio_sync.
41	root	1.135	- added aio_pathsync.
42	root	1.136	- fix prototypes of (void) functions.
43	root	1.134
44	root	1.133	2.51 Sat Oct 6 16:04:54 CEST 2007
45			- perlio isn't generally threadsafe, so aio_close could not work reliably.
46			aio_close now tries a safe hack that might not be that asynchronous
47			(see the manpage for details).
48			- discard callback return values as to not grow the stack endlessly
49			when poll_cb handles many requests without returning.
50			- minor code cleanups.
51
52	root	1.132	2.5 Thu Oct 4 14:49:08 CEST 2007
53	root	1.131	- replaced _fd2fh with faster xs code.
54			- aio_close will now try to do "the right thing" and thus might
55			work sensibly for the very first time.
56
57	root	1.130	2.41 Mon Sep 24 21:28:21 CEST 2007
58	root	1.129	- after fork, invest some work to make sure that the poll_fileno
59			stays stable (by dup2'ing the new fd over the old one), to make
60			it easier for programs/libs that don't control their forking
61			behaviour and cannot recreate their watchers.
62
63	root	1.128	2.4 Sun Aug 5 18:44:22 CEST 2007
64	root	1.127	- add aio_truncate, aio_chmod, aio_chown, aio_utime (linux
65			successfully demonstrated that you can block on futimes...).
66	root	1.124	- allow undef as fileoffset for aio_read/write and use read/write(2)
67			internally (useful for sockets or O_APPEND handles).
68	root	1.126	- allow undef for length in aio_write.
69			- negative dataoffsets work as expected now in aio_read/aio_write.
70	root	1.124	- use NV instead of UV for 32 bit perls and file offsets, as NVs
71	root	1.125	have a larger range then.
72	root	1.120	- shared code between BDB and IO::AIO.
73	root	1.127	- aio_busy was completely broken. now fixed.
74			- readahead emulation now returns something.
75	root	1.121	- correctly set errno to ENOSYS on unimplemented functions
76			(should never happen, though).
77	root	1.127	- large changes to make it partially compile and run on win32,
78			but win32 lacks too much functionality, and perl overrides way
79			too many functions with crashing versions.
80	root	1.120
81	root	1.119	2.33 Tue Jan 23 23:55:41 CET 2007
82			- fix install path (Andreas J. Koenig).
83
84	root	1.118	2.32 Mon Jan 22 16:56:23 CET 2007
85	root	1.114	- added aio_rmtree.
86	root	1.115	- wow, aio_mkdir was missing.
87	root	1.116	- aio_load did return undef on error, not -1.
88	root	1.117	- use prefixexp not prefix in autoconf.pm
89			(suggested by ... rt.cpan.org unreachable).
90	root	1.118	- avoid installing autoconf.pm.
91	root	1.114
92	root	1.113	2.31 Sat Jan 6 03:46:02 CET 2007
93	root	1.112	- added aio_load.
94
95	root	1.111	2.3 Sat Dec 23 05:48:07 CET 2006
96			- fix off-by-one bug in aio_read, causing memory corruption
97			or crashes.
98
99	root	1.110	2.21 Fri Dec 22 05:03:38 CET 2006
100	root	1.108	- minor doc updates.
101	root	1.107	- minor cleanups.
102			- IO::AIO::poll returns request count.
103	root	1.109	- undocumented and unfinished async-signal-reporting.
104	root	1.107
105	root	1.103	2.2 Tue Oct 31 00:31:00 CET 2006
106	root	1.100	- minor doc updates.
107	root	1.101	- added aio_readlink.
108			- properly zero-terminate aio_read buffer.
109			- fix aio_read/write with nonzero dataoffset.
110	root	1.104	- reduced size of aio request structure.
111	root	1.106	- better diagnostics when pathnames etc. are not byte-encoded;
112	root	1.105	do not leak request in that case, either.
113	root	1.94
114	root	1.99	2.1 Sun Oct 29 02:01:57 CET 2006
115	root	1.98	- INCOMPATIBLE CHANGE: replace IO::AIO::poll_some by
116			IO::AIO::max_poll_reqs and IO::AIO::max_poll_time.
117	root	1.95	- fix a bug in aio_move where it would fail everytime
118			it would have to copy files manually.
119	root	1.98	- doc updates.
120	root	1.94	- start threads only on (very low) demand.
121	root	1.97	- end superfluous threads automatically after 10s idling.
122	root	1.98	- add IO::AIO::max_idle to control this.
123	root	1.94	- some tuning applied to random places.
124	root	1.95	- add aio_mknod.
125	root	1.59
126	root	1.92	2.0 Thu Oct 26 18:27:58 CEST 2006
127	root	1.90	- minor incompatibility: max_outstanding semantics have changed.
128	root	1.86	- major rewrite, consider all functionality EXPERIMENTAL.
129	root	1.68	- aio requests can be cancelled.
130	root	1.81	- callbacks can be (re-)set later.
131	root	1.93	- aio requests can choose between 9 priorities.
132	root	1.83	- add aio_group: aio requests can be grouped
133			into composite requests.
134			- generator interface for groups.
135	root	1.89	- add IO::AIO::poll_some.
136	root	1.72	- major documentation improvements.
137			- very minor bugfixes.
138	root	1.76	- add aio_nop for dummy requests.
139	root	1.84	- add aio_busy mainly for benchmarking and debugging.
140	root	1.79	- use "fast" mutexes on linux.
141	root	1.80	- use dynamic (and larger) buffers instead of
142			putting them onto the stack.
143			- optimise x86 and amd64 a bit.
144			- better error checking when ENOMEM.
145	root	1.85	- hopefully fix mem and dirp leaks on fork.
146	root	1.92	- warn about broken perl malloc.
147	root	1.88	- compiles on cygwin (but pread is broken on cygwin
148			which is not detected by autoconf, so you have to
149			edit autoconf/config.h yourself to enable emulation).
150	root	1.68
151	root	1.67	1.8 Sat Jun 24 22:20:44 CEST 2006
152	root	1.66	- add and/or document aio_rename, aio_link, aio_symlink and aio_move.
153
154	root	1.65	1.73 Wed Mar 1 22:49:32 CET 2006
155			- codename "jost"
156			- AIX/Solaris(?) aren't being helpful again, hardcode a value
157			for NAME_MAX and drive with your eyes closed (reported by
158			wcooley@nakedape.cc).
159	root	1.63
160	root	1.62	1.72 Thu Feb 2 00:40:44 CET 2006
161	root	1.61	- another minor bug in aio_scandir, again, the callback was called
162			twice when the directory can't be stat'ed.
163
164	root	1.60	1.71 Mon Dec 26 20:20:03 CET 2005
165			- grr, another minor bug in aio_scandir, this time resulting
166			in a runtime error.
167
168	root	1.59	1.7 Mon Dec 26 19:29:48 CET 2005
169	root	1.58	- aio_scandir errornously called callback twice in some cases.
170	root	1.57	- added AnyEvent example.
171
172	root	1.55	1.61 Wed Sep 7 19:40:42 CEST 2005
173	root	1.54	- no longer include $Config{libs}, as distros include too much
174	root	1.56	garbage in there that is not installed on typical systems
175	root	1.54	(for example, debian links perl against -lgdbm and many more
176			libraries despite perl not needing it, slowing down startup and
177			wasting memory).
178
179	root	1.53	1.6 Tue Aug 30 17:44:44 CEST 2005
180			- added aio_readdir, aio_scandir.
181	root	1.51	- added aio_sendfile, including sendfile emulation when sendfile
182			isn't available. Linux, FreeBSD and HP-UX might work (sendfilev
183			support is unavailable on my solaris 8 machine, but preliminary
184			code is there. What's lacking is configury stuff and testing...).
185	root	1.46
186	root	1.44	1.5 Sat Aug 20 02:32:19 CEST 2005
187	root	1.51	- create the aio threads on demand only (good after forking).
188	root	1.41	- somebody nagged about C89 compatibility, so this release should
189	root	1.42	be C89 compatible, but no guarantees for future ones.
190	root	1.43	- abort when the configure script fails.
191	root	1.41
192	root	1.40	1.4 Wed Aug 17 08:07:27 CEST 2005
193	root	1.93	- forgot to recreate the pipe after forking, this could cause
194	root	1.40	deadlocks.
195
196	root	1.39	1.3 Wed Aug 17 07:25:54 CEST 2005
197	root	1.33	- properly propagate exceptions from callbacks, instead of silently
198			eating them.
199	root	1.38	- use a different fork algorithm that avoids recursive callback
200			invocations and reduces fork latency in busy processes.
201	root	1.37	- fix a bug where the buffer scalar in aio_read got assigned the wrong
202			length after reading.
203			- fix a bug where the child would process some outstanding requests
204			from the parent.
205			- make a copy of the callback scalar, to avoid some very uncommon
206			(but valid) usages where the callback scalar changes.
207			- the callback was never freed in aio_read/aio_write.
208	root	1.38	- aio_read/aio_write will now set the readonly flag on the data
209			scalar for better error reporting.
210	root	1.33
211	root	1.32	1.2 Wed Aug 17 01:22:58 CEST 2005
212			- verified on cygwin, linux/amd64+ia32+alpha, solaris.
213	root	1.31	- use SvPVbyte for filenames now. You need to encode your strings to
214			the external filename encoding first.
215	root	1.32	- fix the bug where filehandles could leak (again).
216	root	1.31	- clarify freebsd situation: make it work and tell me how, or go away
217			with your underdocumented, broken and outdated OS.
218			- fork'ing should now be officially supported (where linux and
219			posix contradict each other, I followed posix).
220	root	1.32	- only call read() once per poll, not twice (speedup).
221			- new functions: aio_rmdir, aio_symlink.
222	root	1.31	- force callback arguments to be undef or a reference, for better
223			error catching.
224	root	1.1
225	root	1.29	1.1 Sun Aug 7 05:27:23 CEST 2005
226	root	1.25	- added configure script to detect availability of some calls.
227	root	1.27	(imperfect, as we cannot detect things like -lrt due to missing
228	root	1.23	feedback yet).
229	root	1.27	- emulate fdatasync via fsync, pread/pwrite via unsafe read/write
230			and readahead via manual reading on platforms lacking those.
231	root	1.19	- ported t/03_errors.t+framework by Brad Fitzpatrick
232			from Linux::AIO.
233	root	1.18	- removed XOPEN_SOURCE because stupid solaris 9 doesn't
234			compile with it enabled. Probably breaks others. Oh well.
235	root	1.24	- try to be more careful with errno on non-threaded perls.
236	root	1.26	- cygwins perl insisted on a matching open mode when morphing
237			the fd to an fh.
238	root	1.28	- convert sv's to "byte" encoding in aio_read/aio_write. Might
239			do that for pathnames, too, in the future, so make sure you
240			properly encode your pathnames.
241	root	1.18
242	root	1.17	1.0 Fri Jul 22 10:43:30 CEST 2005
243			- aio_open did not reliably deliver (open) filehandles.
244	root	1.16	- all aio_*-functions keep a reference to the filehandle so
245			it doesn't go away while the aio requests is working on it.
246			- disable warnings in AIO.pm.
247
248	root	1.15	0.9 Wed Jul 20 23:55:04 CEST 2005
249			- allow recursive calls to poll_cb, use less locking calls, too.
250			- fix the Gtk2-example in the SYNOPSIS.
251	root	1.14	- use pread/pwrite not pread64/pwrite64. this was simply a leftover
252			from Linux::AIO.
253			(found by compiling on cygwin. Unfortunately, cygwin declares but
254			does not implement pread/pwrite).
255			- only include <sys/syscall.h> on linux.
256
257	root	1.13	0.5 Tue Jul 12 13:03:09 CEST 2005
258	root	1.12	- removed #include <endian.h>, it's not portable, and we don't
259			need it anyway.
260			- link against -lrt, as it might contain goodies such as fdatasync,
261			and often aio_read, which we do not use yet, but it shouldn't hurt.
262
263	root	1.11	0.4 Mon Jul 11 05:28:25 CEST 2005
264	root	1.9	- added IO::AIO::flush, IO::AIO::poll.
265	root	1.10	- make callback argument optional for all calls.
266	root	1.8
267	root	1.7	0.3 Mon Jul 11 01:42:37 CEST 2005
268	root	1.5	- restructured manpage.
269	root	1.7	- added SYNOPSIS with examples for Event, Glib, Tk.
270			- remove explicit context support so I don't have to maintain
271			it for threaded perls (i.e. it should work now :).
272	root	1.5
273	root	1.4	0.2 Sun Jul 10 22:57:12 CEST 2005
274	root	1.2	- return immediately from poll_wait if nreqs==0.
275			- get rid of the request pipe and use faster thread-thread
276	root	1.3	communications for most requests and responses.
277	root	1.2
278	root	1.1	0.1
279			- cloned from Linux::AIO, which is very similar.
280