head	1.11;
access;
symbols
	SIO_0_9_3:1.11
	SIO_0_9_2:1.10
	SIO_0_9_1:1.10
	SIO_0_9_0:1.10;
locks; strict;
comment	@ * @;


1.11
date	2005.10.03.09.06.11;	author rse;	state Exp;
branches;
next	1.10;

1.10
date	2003.01.06.19.04.56;	author rse;	state Exp;
branches;
next	1.9;

1.9
date	2003.01.06.16.35.40;	author rse;	state Exp;
branches;
next	1.8;

1.8
date	2002.11.29.13.00.18;	author mlelstv;	state Exp;
branches;
next	1.7;

1.7
date	2002.11.27.15.50.29;	author mlelstv;	state Exp;
branches;
next	1.6;

1.6
date	2002.11.24.19.36.48;	author mlelstv;	state Exp;
branches;
next	1.5;

1.5
date	2002.11.14.15.56.10;	author mlelstv;	state Exp;
branches;
next	1.4;

1.4
date	2002.11.08.08.59.32;	author mlelstv;	state Exp;
branches;
next	1.3;

1.3
date	2002.11.05.13.23.36;	author mlelstv;	state Exp;
branches;
next	1.2;

1.2
date	2002.10.23.17.05.10;	author mlelstv;	state Exp;
branches;
next	1.1;

1.1
date	2002.10.22.12.57.20;	author mlelstv;	state Exp;
branches;
next	;


desc
@@


1.11
log
@adjust copyright messages
@
text
@/*
**  OSSP sio - Stream I/O
**  Copyright (c) 2002-2005 Cable & Wireless <http://www.cw.com/>
**  Copyright (c) 2002-2005 The OSSP Project <http://www.ossp.org/>
**  Copyright (c) 2002-2005 Ralf S. Engelschall <rse@@engelschall.com>
**
**  This file is part of OSSP sio, a layered stream I/O library
**  which can be found at http://www.ossp.org/pkg/lib/sio/.
**
**  Permission to use, copy, modify, and distribute this software for
**  any purpose with or without fee is hereby granted, provided that
**  the above copyright notice and this permission notice appear in all
**  copies.
**
**  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
**  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
**  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
**  IN NO EVENT SHALL THE AUTHORS AND COPYRIGHT HOLDERS AND THEIR
**  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
**  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
**  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
**  USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
**  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
**  OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
**  OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
**  SUCH DAMAGE.
**
**  sio_null.c: /dev/null stage
*/

#include <stddef.h>
#include <stdlib.h>

#include "al.h"
#include "sio.h"

typedef struct {
    int a;
    float b;
    char *c;
} private_t;

/*
 * create stage
 *
 * allocate private instance data
 */
static
sio_rc_t null_init(sio_t *sio, void **up)
{
    private_t *my;

    my = (private_t *)malloc(sizeof(private_t));
    if (my == NULL)
        return SIO_ERR_MEM;

    my->a = 42;
    my->b = 42.0;
    my->c = "42";

    *up = my;

    return SIO_OK;
}

/*
 * configure stage
 *
 * pass two void pointers
 */
static
sio_rc_t null_configure(sio_t *sio, void *u, void *obj, void *val)
{
    private_t *my = (private_t *)u;

    my->a = *(int *)val;

    return SIO_OK;
}

/*
 * destroy stage
 */
static
sio_rc_t null_cleanup(sio_t *sio, void *u)
{
    private_t *my = (private_t *)u;

    free(my);

    return SIO_OK;
}

static
sio_rc_t null_openr(sio_t *sio, al_t *al, void *u)
{
    return SIO_OK;
}

static
sio_rc_t null_closer(sio_t *sio, al_t *al, void *u)
{
    return SIO_OK;
}

static
sio_rc_t null_openw(sio_t *sio, al_t *al, void *u)
{
    return SIO_OK;
}

static
sio_rc_t null_closew(sio_t *sio, al_t *al, void *u)
{
    return SIO_OK;
}

static
sio_rc_t null_input(sio_t *sio, al_t *al, void *u, sio_rc_t orc)
{
    return SIO_OK;
}

static
sio_rc_t null_output(sio_t *sio, al_t *al, void *u, sio_rc_t orc)
{
    return SIO_OK;
}

static
sio_rc_t null_shutdown(sio_t *sio, void *u)
{
    return SIO_OK;
}

sio_module_t sio_module_null = {
    "null",
    null_init,
    null_configure,
    null_cleanup,
    null_openr,
    null_closer,
    null_openw,
    null_closew,
    null_input,
    null_output,
    null_shutdown
};

@


1.10
log
@- consistently use standard OSSP copyright message everywhere
- strip trailing whitespaces
@
text
@d3 3
a5 3
**  Copyright (c) 2002-2003 Cable & Wireless Deutschland <http://www.cw.com/de/>
**  Copyright (c) 2002-2003 The OSSP Project <http://www.ossp.org/>
**  Copyright (c) 2002-2003 Ralf S. Engelschall <rse@@engelschall.com>
@


1.9
log
@fix signature
@
text
@d1 30
d52 1
a52 1
    
@


1.8
log
@input/output now gets another parameter where scheduler tells
them from where they methods called by passing the return value
of the previously called stage.

PR:
Submitted by:
Reviewed by:
Approved by:
Obtained from:
@
text
@d101 1
a101 1
sio_rc_t null_shutdown(sio_t *sio, al_t *al, void *u)
@


1.7
log
@code cleanup

PR:
Submitted by:
Reviewed by:
Approved by:
Obtained from:
@
text
@d89 1
a89 1
sio_rc_t null_input(sio_t *sio, al_t *al, void *u)
d95 1
a95 1
sio_rc_t null_output(sio_t *sio, al_t *al, void *u)
@


1.6
log
@add optional shutdown function to modules. On detach, it is called
and if returning SIO_OK another round through output and input
is done.
modules are now pushed at pipe head instead of appended so that
a module can do upstream I/O while being wound up.

PR:
Submitted by:
Reviewed by:
Approved by:
Obtained from:
@
text
@d19 1
a19 1
sio_rc_t null_init(sio_t *sio, void **u)
d31 1
a31 1
    *u = my;
@


1.5
log
@merged sio_module.h into sio.h
renamed scheduler codes to SIO_SCHED_*
added comments to sio.c

PR:
Submitted by:
Reviewed by:
Approved by:
Obtained from:
@
text
@d100 6
d116 2
a117 1
    null_output
@


1.4
log
@less cluttering name for private data pointer

PR:
Submitted by:
Reviewed by:
Approved by:
Obtained from:
@
text
@a5 1
#include "sio_module.h"
@


1.3
log
@snapshot
- sio_strategy now has a default direction triggered by SIO_OK result
- added structure tag to aid debugging
- sio_hole eats all data and returns downstream (correct ?)
- sio_null now uses default directio
- sio_sa puts wrapper on sa objects
- sio_hello.c implements a trivial protocol handler

PR:
Submitted by:
Reviewed by:
Approved by:
Obtained from:
@
text
@d22 1
a22 1
    private_t *mydata;
d24 2
a25 2
    mydata = (private_t *)malloc(sizeof(private_t));
    if (mydata == NULL)
d28 3
a30 3
    mydata->a = 42;
    mydata->b = 42.0;
    mydata->c = "42";
d32 1
a32 1
    *u = mydata;
d45 1
a45 1
    private_t *mydata = (private_t *)u;
d47 1
a47 1
    mydata->a = *(int *)val;
d58 1
a58 1
    private_t *mydata = (private_t *)u;
d60 1
a60 1
    free(mydata);
@


1.2
log
@snapshot

PR:
Submitted by:
Reviewed by:
Approved by:
Obtained from:
@
text
@d92 1
a92 1
    return SIO_DOWNSTREAM;
d98 1
a98 1
    return SIO_UPSTREAM;
@


1.1
log
@initial commit

PR:
Submitted by:
Reviewed by:
Approved by:
Obtained from:
@
text
@d66 1
a66 1
sio_rc_t null_open(sio_t *sio, void *u)
d72 13
a84 1
sio_rc_t null_close(sio_t *sio, void *u)
d92 1
a92 1
    return SIO_OK;
d98 1
a98 1
    return SIO_OK;
d101 1
a101 1
sio_module_t sio_null_module = {
d106 4
a109 2
    null_open,
    null_close,
@