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

TODO: linux form of sendfile()

Revision history for IO::AIO

1.5  Sat Aug 20 02:32:19 CEST 2005
        - create the aio threads on demand only.
        - 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
        - forget 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          with your underdocumented, broken and outdated OS.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:	1.45
Committed:	Mon Aug 22 11:59:15 2005 UTC (18 years, 9 months ago) by root
Branch:	MAIN
Changes since 1.44:	+2 -0 lines
Log Message:	* empty log message *
#	User	Rev	Content
1	root	1.45	TODO: linux form of sendfile()
2
3	root	1.31	Revision history for IO::AIO
4	root	1.30
5	root	1.44	1.5 Sat Aug 20 02:32:19 CEST 2005
6	root	1.41	- create the aio threads on demand only.
7			- somebody nagged about C89 compatibility, so this release should
8	root	1.42	be C89 compatible, but no guarantees for future ones.
9	root	1.43	- abort when the configure script fails.
10	root	1.41
11	root	1.40	1.4 Wed Aug 17 08:07:27 CEST 2005
12			- forget to recreate the pipe after forking, this could cause
13			deadlocks.
14
15	root	1.39	1.3 Wed Aug 17 07:25:54 CEST 2005
16	root	1.33	- properly propagate exceptions from callbacks, instead of silently
17			eating them.
18	root	1.38	- use a different fork algorithm that avoids recursive callback
19			invocations and reduces fork latency in busy processes.
20	root	1.37	- fix a bug where the buffer scalar in aio_read got assigned the wrong
21			length after reading.
22			- fix a bug where the child would process some outstanding requests
23			from the parent.
24			- make a copy of the callback scalar, to avoid some very uncommon
25			(but valid) usages where the callback scalar changes.
26			- the callback was never freed in aio_read/aio_write.
27	root	1.38	- aio_read/aio_write will now set the readonly flag on the data
28			scalar for better error reporting.
29	root	1.33
30	root	1.32	1.2 Wed Aug 17 01:22:58 CEST 2005
31			- verified on cygwin, linux/amd64+ia32+alpha, solaris.
32	root	1.31	- use SvPVbyte for filenames now. You need to encode your strings to
33			the external filename encoding first.
34	root	1.32	- fix the bug where filehandles could leak (again).
35	root	1.31	- clarify freebsd situation: make it work and tell me how, or go away
36			with your underdocumented, broken and outdated OS.
37			- fork'ing should now be officially supported (where linux and
38			posix contradict each other, I followed posix).
39	root	1.32	- only call read() once per poll, not twice (speedup).
40			- new functions: aio_rmdir, aio_symlink.
41	root	1.31	- force callback arguments to be undef or a reference, for better
42			error catching.
43	root	1.1
44	root	1.29	1.1 Sun Aug 7 05:27:23 CEST 2005
45	root	1.25	- added configure script to detect availability of some calls.
46	root	1.27	(imperfect, as we cannot detect things like -lrt due to missing
47	root	1.23	feedback yet).
48	root	1.27	- emulate fdatasync via fsync, pread/pwrite via unsafe read/write
49			and readahead via manual reading on platforms lacking those.
50	root	1.19	- ported t/03_errors.t+framework by Brad Fitzpatrick
51			from Linux::AIO.
52	root	1.18	- removed XOPEN_SOURCE because stupid solaris 9 doesn't
53			compile with it enabled. Probably breaks others. Oh well.
54	root	1.24	- try to be more careful with errno on non-threaded perls.
55	root	1.26	- cygwins perl insisted on a matching open mode when morphing
56			the fd to an fh.
57	root	1.28	- convert sv's to "byte" encoding in aio_read/aio_write. Might
58			do that for pathnames, too, in the future, so make sure you
59			properly encode your pathnames.
60	root	1.18
61	root	1.17	1.0 Fri Jul 22 10:43:30 CEST 2005
62			- aio_open did not reliably deliver (open) filehandles.
63	root	1.16	- all aio_*-functions keep a reference to the filehandle so
64			it doesn't go away while the aio requests is working on it.
65			- disable warnings in AIO.pm.
66
67	root	1.15	0.9 Wed Jul 20 23:55:04 CEST 2005
68			- allow recursive calls to poll_cb, use less locking calls, too.
69			- fix the Gtk2-example in the SYNOPSIS.
70	root	1.14	- use pread/pwrite not pread64/pwrite64. this was simply a leftover
71			from Linux::AIO.
72			(found by compiling on cygwin. Unfortunately, cygwin declares but
73			does not implement pread/pwrite).
74			- only include <sys/syscall.h> on linux.
75
76	root	1.13	0.5 Tue Jul 12 13:03:09 CEST 2005
77	root	1.12	- removed #include <endian.h>, it's not portable, and we don't
78			need it anyway.
79			- link against -lrt, as it might contain goodies such as fdatasync,
80			and often aio_read, which we do not use yet, but it shouldn't hurt.
81
82	root	1.11	0.4 Mon Jul 11 05:28:25 CEST 2005
83	root	1.9	- added IO::AIO::flush, IO::AIO::poll.
84	root	1.10	- make callback argument optional for all calls.
85	root	1.8
86	root	1.7	0.3 Mon Jul 11 01:42:37 CEST 2005
87	root	1.5	- restructured manpage.
88	root	1.7	- added SYNOPSIS with examples for Event, Glib, Tk.
89			- remove explicit context support so I don't have to maintain
90			it for threaded perls (i.e. it should work now :).
91	root	1.5
92	root	1.4	0.2 Sun Jul 10 22:57:12 CEST 2005
93	root	1.2	- return immediately from poll_wait if nreqs==0.
94			- get rid of the request pipe and use faster thread-thread
95	root	1.3	communications for most requests and responses.
96	root	1.2
97	root	1.1	0.1
98			- cloned from Linux::AIO, which is very similar.
99