/*****************************************************************************
* attachment.c: Input attachments
*****************************************************************************
* Copyright (C) 1999-2020 VLC authors and VideoLAN
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <vlc_common.h>
#include <vlc_input.h>
#include <vlc_atomic.h>
struct input_attachment_priv
{
input_attachment_t a;
vlc_atomic_rc_t rc;
};
static struct input_attachment_priv* input_attachment_priv( input_attachment_t* a )
{
return container_of( a, struct input_attachment_priv, a );
}
void vlc_input_attachment_Release( input_attachment_t *a )
{
if( !a )
return;
struct input_attachment_priv* p = input_attachment_priv( a );
if( !vlc_atomic_rc_dec( &p->rc ) )
return;
free( a->p_data );
free( a->psz_description );
free( a->psz_mime );
free( a->psz_name );
free( p );
}
input_attachment_t *vlc_input_attachment_New( const char *psz_name,
const char *psz_mime,
const char *psz_description,
const void *p_data,
size_t i_data )
{
struct input_attachment_priv *a = (struct input_attachment_priv *)malloc( sizeof (*a) );
if( unlikely(a == NULL) )
return NULL;
vlc_atomic_rc_init( &a->rc );
a->a.psz_name = strdup( psz_name ? psz_name : "" );
a->a.psz_mime = strdup( psz_mime ? psz_mime : "" );
a->a.psz_description = strdup( psz_description ? psz_description : "" );
a->a.i_data = i_data;
a->a.p_data = malloc( i_data );
if( i_data > 0 && likely(a->a.p_data != NULL) )
memcpy( a->a.p_data, p_data, i_data );
if( unlikely(a->a.psz_name == NULL || a->a.psz_mime == NULL
|| a->a.psz_description == NULL || (i_data > 0 && a->a.p_data == NULL)) )
{
vlc_input_attachment_Release( &a->a );
return NULL;
}
return &a->a;
}
input_attachment_t *vlc_input_attachment_Hold( input_attachment_t *a )
{
struct input_attachment_priv* p = input_attachment_priv( a );
vlc_atomic_rc_inc( &p->rc );
return a;
}
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