[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

        - automatic removal of feeders was broken.
        - (libeio) use a more robust method to detect whether a feeder
          has added something to the group or not.

3.1  Thu Oct  2 13:34:40 CEST 2008
        - pre-deref the passed callback object, for increased speed
          and decreased memory usage.
        - call on_next_submit callback even for aio_group - impact unknown,
          but seems more correct.
        - $req->cb now returns the original callback.
        - (libeio) pass EIO_GROUP/aio_group requests through the queue without
          requiring a thread switch.
        - (libeio) status code of aio_futime and aio_utime was always passed 0.
        - do some other µ-optimisations.

3.07 Sat Aug  2 16:06:13 CEST 2008
        - do not include LIBS in autoconf tests.

3.06 Tue Jul 15 12:41:32 CEST 2008
        - move preadwritelock definition before it's first reference,
          to make it compile again on broken platforms (they still exist)
          or badly cofngiured perls (redhat...), reported by Rob Bloodgood.

3.05 Thu Jun 19 23:23:52 CEST 2008
        - work around perl overriding readdir etc. with thread-unsafe
          (sic!) versions.

3.04 Wed Jun 18 01:35:38 CEST 2008
        - (libeio) fix eio_mknod, which confused it's arguments.
        - (libeio) do not use readdir_r, as Ulrich Drepper pointed out that this
          is stupid.
        - (libeio) fix eio__readahead prototype, patch by Jost Krieger.
        - (libeio) fix a bug that could potentially cause IO::AIO
          not to get initialised properly.

3.03 Thu May 29 05:33:30 CEST 2008
        - (libeio) correctly call pthread_attr_destroy ().
        - (libeio) work around broken bsd headers once more.
        - reduce shared library size again by not including wrappers.
        - max_outstanding could cause poll to enter a busy-waiting loop.
        - document the new IO::AIO::poll_cb result value.

3.02 Mon May 12 02:32:02 CEST 2008
        - fix a memory leak on aio_readlink.
        - bring back working fchmod.
        - nop and busy now set result to 0.
        - set errno to ENOMEM when allocation fails.

3.01 Sun May 11 03:07:03 CEST 2008
        - (libeio) make it compile on systems without readahead or readdir_r.
        - (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:	1.171
Committed:	Sun Oct 12 22:30:33 2008 UTC (15 years, 7 months ago) by root
Branch:	MAIN
Changes since 1.170:	+4 -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	1.171	- automatic removal of feeders was broken.
10			- (libeio) use a more robust method to detect whether a feeder
11			has added something to the group or not.
12
13	root	1.170	3.1 Thu Oct 2 13:34:40 CEST 2008
14	root	1.168	- pre-deref the passed callback object, for increased speed
15			and decreased memory usage.
16	root	1.167	- call on_next_submit callback even for aio_group - impact unknown,
17	root	1.166	but seems more correct.
18	root	1.168	- $req->cb now returns the original callback.
19	root	1.166	- (libeio) pass EIO_GROUP/aio_group requests through the queue without
20			requiring a thread switch.
21	root	1.169	- (libeio) status code of aio_futime and aio_utime was always passed 0.
22	root	1.166	- do some other µ-optimisations.
23
24	root	1.165	3.07 Sat Aug 2 16:06:13 CEST 2008
25			- do not include LIBS in autoconf tests.
26
27	root	1.164	3.06 Tue Jul 15 12:41:32 CEST 2008
28	root	1.162	- move preadwritelock definition before it's first reference,
29	root	1.164	to make it compile again on broken platforms (they still exist)
30			or badly cofngiured perls (redhat...), reported by Rob Bloodgood.
31	root	1.162
32	root	1.161	3.05 Thu Jun 19 23:23:52 CEST 2008
33	root	1.160	- work around perl overriding readdir etc. with thread-unsafe
34	root	1.161	(sic!) versions.
35	root	1.160
36	root	1.159	3.04 Wed Jun 18 01:35:38 CEST 2008
37			- (libeio) fix eio_mknod, which confused it's arguments.
38	root	1.158	- (libeio) do not use readdir_r, as Ulrich Drepper pointed out that this
39			is stupid.
40	root	1.159	- (libeio) fix eio__readahead prototype, patch by Jost Krieger.
41			- (libeio) fix a bug that could potentially cause IO::AIO
42			not to get initialised properly.
43	root	1.158
44	root	1.157	3.03 Thu May 29 05:33:30 CEST 2008
45	root	1.153	- (libeio) correctly call pthread_attr_destroy ().
46	root	1.155	- (libeio) work around broken bsd headers once more.
47	root	1.154	- reduce shared library size again by not including wrappers.
48	root	1.156	- max_outstanding could cause poll to enter a busy-waiting loop.
49			- document the new IO::AIO::poll_cb result value.
50	root	1.153
51	root	1.152	3.02 Mon May 12 02:32:02 CEST 2008
52	root	1.150	- fix a memory leak on aio_readlink.
53			- bring back working fchmod.
54	root	1.151	- nop and busy now set result to 0.
55			- set errno to ENOMEM when allocation fails.
56	root	1.150
57	root	1.149	3.01 Sun May 11 03:07:03 CEST 2008
58			- (libeio) make it compile on systems without readahead or readdir_r.
59	root	1.148	- (libeio) improve configure check for readahead availability.
60			- do not try to link against -lrt.
61	root	1.147	- use a separate configure script for IO::AIO (not the libeio one).
62
63	root	1.146	3.0 Sun May 11 00:57:14 CEST 2008
64	root	1.145	- added bin/treescan to the distribution.
65			- switched to using libeio.
66			- LOTS OF INCOMPATIBLE CHANGES:
67			- remove signal functionality, it is not worth the effort.
68			- max_outstanding no longer returns the previous number of requests.
69			- poll_cb no longer returns number of requests.
70	root	1.143
71	root	1.142	2.62 Sat Apr 26 13:59:33 CEST 2008
72	root	1.141	- port to solaris perls configured for old posix
73			(analysed by Jost Krieger).
74	root	1.142	- keep a reference to the perl filehandle object in aio_close,
75			so it doesn't get closed prematurely, leading to ugly races.
76	root	1.141
77	root	1.140	2.61 Wed Apr 16 18:45:02 CEST 2008
78	root	1.137	- fix treescan output duplication and improve output ordering.
79			also display files given on the commandline.
80	root	1.140	- use a different algorithm for aio_close that is faster
81			and probably has even lower chances of blocking.
82	root	1.138	- do our own stack memory management for threads - linux
83			allocates outrageous amounts of VM (not so bad unless you
84			use mlockall...), which severely limits the number of threads
85	root	1.139	on 32-bit arches: stack size is the larger of PTHREAD_STACK_MIN
86			and 4096 * sizeof (long) (usually this is 16..64k).
87	root	1.137
88	root	1.136	2.6 Sun Mar 30 08:28:11 CEST 2008
89	root	1.134	- added aio_sync.
90	root	1.135	- added aio_pathsync.
91	root	1.136	- fix prototypes of (void) functions.
92	root	1.134
93	root	1.133	2.51 Sat Oct 6 16:04:54 CEST 2007
94			- perlio isn't generally threadsafe, so aio_close could not work reliably.
95			aio_close now tries a safe hack that might not be that asynchronous
96			(see the manpage for details).
97			- discard callback return values as to not grow the stack endlessly
98			when poll_cb handles many requests without returning.
99			- minor code cleanups.
100
101	root	1.132	2.5 Thu Oct 4 14:49:08 CEST 2007
102	root	1.131	- replaced _fd2fh with faster xs code.
103			- aio_close will now try to do "the right thing" and thus might
104			work sensibly for the very first time.
105
106	root	1.130	2.41 Mon Sep 24 21:28:21 CEST 2007
107	root	1.129	- after fork, invest some work to make sure that the poll_fileno
108			stays stable (by dup2'ing the new fd over the old one), to make
109			it easier for programs/libs that don't control their forking
110			behaviour and cannot recreate their watchers.
111
112	root	1.128	2.4 Sun Aug 5 18:44:22 CEST 2007
113	root	1.127	- add aio_truncate, aio_chmod, aio_chown, aio_utime (linux
114			successfully demonstrated that you can block on futimes...).
115	root	1.124	- allow undef as fileoffset for aio_read/write and use read/write(2)
116			internally (useful for sockets or O_APPEND handles).
117	root	1.126	- allow undef for length in aio_write.
118			- negative dataoffsets work as expected now in aio_read/aio_write.
119	root	1.124	- use NV instead of UV for 32 bit perls and file offsets, as NVs
120	root	1.125	have a larger range then.
121	root	1.120	- shared code between BDB and IO::AIO.
122	root	1.127	- aio_busy was completely broken. now fixed.
123			- readahead emulation now returns something.
124	root	1.121	- correctly set errno to ENOSYS on unimplemented functions
125			(should never happen, though).
126	root	1.127	- large changes to make it partially compile and run on win32,
127			but win32 lacks too much functionality, and perl overrides way
128			too many functions with crashing versions.
129	root	1.120
130	root	1.119	2.33 Tue Jan 23 23:55:41 CET 2007
131			- fix install path (Andreas J. Koenig).
132
133	root	1.118	2.32 Mon Jan 22 16:56:23 CET 2007
134	root	1.114	- added aio_rmtree.
135	root	1.115	- wow, aio_mkdir was missing.
136	root	1.116	- aio_load did return undef on error, not -1.
137	root	1.117	- use prefixexp not prefix in autoconf.pm
138			(suggested by ... rt.cpan.org unreachable).
139	root	1.118	- avoid installing autoconf.pm.
140	root	1.114
141	root	1.113	2.31 Sat Jan 6 03:46:02 CET 2007
142	root	1.112	- added aio_load.
143
144	root	1.111	2.3 Sat Dec 23 05:48:07 CET 2006
145			- fix off-by-one bug in aio_read, causing memory corruption
146			or crashes.
147
148	root	1.110	2.21 Fri Dec 22 05:03:38 CET 2006
149	root	1.108	- minor doc updates.
150	root	1.107	- minor cleanups.
151			- IO::AIO::poll returns request count.
152	root	1.109	- undocumented and unfinished async-signal-reporting.
153	root	1.107
154	root	1.103	2.2 Tue Oct 31 00:31:00 CET 2006
155	root	1.100	- minor doc updates.
156	root	1.101	- added aio_readlink.
157			- properly zero-terminate aio_read buffer.
158			- fix aio_read/write with nonzero dataoffset.
159	root	1.104	- reduced size of aio request structure.
160	root	1.106	- better diagnostics when pathnames etc. are not byte-encoded;
161	root	1.105	do not leak request in that case, either.
162	root	1.94
163	root	1.99	2.1 Sun Oct 29 02:01:57 CET 2006
164	root	1.98	- INCOMPATIBLE CHANGE: replace IO::AIO::poll_some by
165			IO::AIO::max_poll_reqs and IO::AIO::max_poll_time.
166	root	1.95	- fix a bug in aio_move where it would fail everytime
167			it would have to copy files manually.
168	root	1.98	- doc updates.
169	root	1.94	- start threads only on (very low) demand.
170	root	1.97	- end superfluous threads automatically after 10s idling.
171	root	1.98	- add IO::AIO::max_idle to control this.
172	root	1.94	- some tuning applied to random places.
173	root	1.95	- add aio_mknod.
174	root	1.59
175	root	1.92	2.0 Thu Oct 26 18:27:58 CEST 2006
176	root	1.90	- minor incompatibility: max_outstanding semantics have changed.
177	root	1.86	- major rewrite, consider all functionality EXPERIMENTAL.
178	root	1.68	- aio requests can be cancelled.
179	root	1.81	- callbacks can be (re-)set later.
180	root	1.93	- aio requests can choose between 9 priorities.
181	root	1.83	- add aio_group: aio requests can be grouped
182			into composite requests.
183			- generator interface for groups.
184	root	1.89	- add IO::AIO::poll_some.
185	root	1.72	- major documentation improvements.
186			- very minor bugfixes.
187	root	1.76	- add aio_nop for dummy requests.
188	root	1.84	- add aio_busy mainly for benchmarking and debugging.
189	root	1.79	- use "fast" mutexes on linux.
190	root	1.80	- use dynamic (and larger) buffers instead of
191			putting them onto the stack.
192			- optimise x86 and amd64 a bit.
193			- better error checking when ENOMEM.
194	root	1.85	- hopefully fix mem and dirp leaks on fork.
195	root	1.92	- warn about broken perl malloc.
196	root	1.88	- compiles on cygwin (but pread is broken on cygwin
197			which is not detected by autoconf, so you have to
198			edit autoconf/config.h yourself to enable emulation).
199	root	1.68
200	root	1.67	1.8 Sat Jun 24 22:20:44 CEST 2006
201	root	1.66	- add and/or document aio_rename, aio_link, aio_symlink and aio_move.
202
203	root	1.65	1.73 Wed Mar 1 22:49:32 CET 2006
204			- codename "jost"
205			- AIX/Solaris(?) aren't being helpful again, hardcode a value
206			for NAME_MAX and drive with your eyes closed (reported by
207			wcooley@nakedape.cc).
208	root	1.63
209	root	1.62	1.72 Thu Feb 2 00:40:44 CET 2006
210	root	1.61	- another minor bug in aio_scandir, again, the callback was called
211			twice when the directory can't be stat'ed.
212
213	root	1.60	1.71 Mon Dec 26 20:20:03 CET 2005
214			- grr, another minor bug in aio_scandir, this time resulting
215			in a runtime error.
216
217	root	1.59	1.7 Mon Dec 26 19:29:48 CET 2005
218	root	1.58	- aio_scandir errornously called callback twice in some cases.
219	root	1.57	- added AnyEvent example.
220
221	root	1.55	1.61 Wed Sep 7 19:40:42 CEST 2005
222	root	1.54	- no longer include $Config{libs}, as distros include too much
223	root	1.56	garbage in there that is not installed on typical systems
224	root	1.54	(for example, debian links perl against -lgdbm and many more
225			libraries despite perl not needing it, slowing down startup and
226			wasting memory).
227
228	root	1.53	1.6 Tue Aug 30 17:44:44 CEST 2005
229			- added aio_readdir, aio_scandir.
230	root	1.51	- added aio_sendfile, including sendfile emulation when sendfile
231			isn't available. Linux, FreeBSD and HP-UX might work (sendfilev
232			support is unavailable on my solaris 8 machine, but preliminary
233			code is there. What's lacking is configury stuff and testing...).
234	root	1.46
235	root	1.44	1.5 Sat Aug 20 02:32:19 CEST 2005
236	root	1.51	- create the aio threads on demand only (good after forking).
237	root	1.41	- somebody nagged about C89 compatibility, so this release should
238	root	1.42	be C89 compatible, but no guarantees for future ones.
239	root	1.43	- abort when the configure script fails.
240	root	1.41
241	root	1.40	1.4 Wed Aug 17 08:07:27 CEST 2005
242	root	1.93	- forgot to recreate the pipe after forking, this could cause
243	root	1.40	deadlocks.
244
245	root	1.39	1.3 Wed Aug 17 07:25:54 CEST 2005
246	root	1.33	- properly propagate exceptions from callbacks, instead of silently
247			eating them.
248	root	1.38	- use a different fork algorithm that avoids recursive callback
249			invocations and reduces fork latency in busy processes.
250	root	1.37	- fix a bug where the buffer scalar in aio_read got assigned the wrong
251			length after reading.
252			- fix a bug where the child would process some outstanding requests
253			from the parent.
254			- make a copy of the callback scalar, to avoid some very uncommon
255			(but valid) usages where the callback scalar changes.
256			- the callback was never freed in aio_read/aio_write.
257	root	1.38	- aio_read/aio_write will now set the readonly flag on the data
258			scalar for better error reporting.
259	root	1.33
260	root	1.32	1.2 Wed Aug 17 01:22:58 CEST 2005
261			- verified on cygwin, linux/amd64+ia32+alpha, solaris.
262	root	1.31	- use SvPVbyte for filenames now. You need to encode your strings to
263			the external filename encoding first.
264	root	1.32	- fix the bug where filehandles could leak (again).
265	root	1.31	- clarify freebsd situation: make it work and tell me how, or go away
266			with your underdocumented, broken and outdated OS.
267			- fork'ing should now be officially supported (where linux and
268			posix contradict each other, I followed posix).
269	root	1.32	- only call read() once per poll, not twice (speedup).
270			- new functions: aio_rmdir, aio_symlink.
271	root	1.31	- force callback arguments to be undef or a reference, for better
272			error catching.
273	root	1.1
274	root	1.29	1.1 Sun Aug 7 05:27:23 CEST 2005
275	root	1.25	- added configure script to detect availability of some calls.
276	root	1.27	(imperfect, as we cannot detect things like -lrt due to missing
277	root	1.23	feedback yet).
278	root	1.27	- emulate fdatasync via fsync, pread/pwrite via unsafe read/write
279			and readahead via manual reading on platforms lacking those.
280	root	1.19	- ported t/03_errors.t+framework by Brad Fitzpatrick
281			from Linux::AIO.
282	root	1.18	- removed XOPEN_SOURCE because stupid solaris 9 doesn't
283			compile with it enabled. Probably breaks others. Oh well.
284	root	1.24	- try to be more careful with errno on non-threaded perls.
285	root	1.26	- cygwins perl insisted on a matching open mode when morphing
286			the fd to an fh.
287	root	1.28	- convert sv's to "byte" encoding in aio_read/aio_write. Might
288			do that for pathnames, too, in the future, so make sure you
289			properly encode your pathnames.
290	root	1.18
291	root	1.17	1.0 Fri Jul 22 10:43:30 CEST 2005
292			- aio_open did not reliably deliver (open) filehandles.
293	root	1.16	- all aio_*-functions keep a reference to the filehandle so
294			it doesn't go away while the aio requests is working on it.
295			- disable warnings in AIO.pm.
296
297	root	1.15	0.9 Wed Jul 20 23:55:04 CEST 2005
298			- allow recursive calls to poll_cb, use less locking calls, too.
299			- fix the Gtk2-example in the SYNOPSIS.
300	root	1.14	- use pread/pwrite not pread64/pwrite64. this was simply a leftover
301			from Linux::AIO.
302			(found by compiling on cygwin. Unfortunately, cygwin declares but
303			does not implement pread/pwrite).
304			- only include <sys/syscall.h> on linux.
305
306	root	1.13	0.5 Tue Jul 12 13:03:09 CEST 2005
307	root	1.12	- removed #include <endian.h>, it's not portable, and we don't
308			need it anyway.
309			- link against -lrt, as it might contain goodies such as fdatasync,
310			and often aio_read, which we do not use yet, but it shouldn't hurt.
311
312	root	1.11	0.4 Mon Jul 11 05:28:25 CEST 2005
313	root	1.9	- added IO::AIO::flush, IO::AIO::poll.
314	root	1.10	- make callback argument optional for all calls.
315	root	1.8
316	root	1.7	0.3 Mon Jul 11 01:42:37 CEST 2005
317	root	1.5	- restructured manpage.
318	root	1.7	- added SYNOPSIS with examples for Event, Glib, Tk.
319			- remove explicit context support so I don't have to maintain
320			it for threaded perls (i.e. it should work now :).
321	root	1.5
322	root	1.4	0.2 Sun Jul 10 22:57:12 CEST 2005
323	root	1.2	- return immediately from poll_wait if nreqs==0.
324			- get rid of the request pipe and use faster thread-thread
325	root	1.3	communications for most requests and responses.
326	root	1.2
327	root	1.1	0.1
328			- cloned from Linux::AIO, which is very similar.
329