/**
* Finds the value of a variable. If the specified object does not hold a
* variable with the specified name, try the parent object, and iterate until
* the top of the tree. If no match is found, the value is read from the
* configuration.
*/
int var_Inherit( vlc_object_t *p_this, const char *psz_name, int i_type,
vlc_value_t *p_val )
{
i_type &= VLC_VAR_CLASS;
for( vlc_object_t *obj = p_this; obj != NULL; obj = obj->obj.parent )
{
if( var_GetChecked( obj, psz_name, i_type, p_val ) == VLC_SUCCESS )
return VLC_SUCCESS;
}
/* else take value from config */
switch( i_type & VLC_VAR_CLASS )
{
case VLC_VAR_STRING:
p_val->psz_string = config_GetPsz( p_this, psz_name );
if( !p_val->psz_string ) p_val->psz_string = strdup("");
break;
case VLC_VAR_FLOAT:
p_val->f_float = config_GetFloat( p_this, psz_name );
break;
case VLC_VAR_INTEGER:
p_val->i_int = config_GetInt( p_this, psz_name );
break;
case VLC_VAR_BOOL:
p_val->b_bool = config_GetInt( p_this, psz_name );
break;
default:
vlc_assert_unreachable();
case VLC_VAR_ADDRESS:
return VLC_ENOOBJ;
}
return VLC_SUCCESS;
}
/**
* Finds the value of a variable. If the specified object does not hold a
* variable with the specified name, try the parent object, and iterate until
* the top of the tree. If no match is found, the value is read from the
* configuration.
*/
int var_Inherit( vlc_object_t *p_this, const char *psz_name, int i_type,
vlc_value_t *p_val )
{
#ifndef NDEBUG
if (p_this != VLC_OBJECT(p_this->p_libvlc)
&& unlikely(p_this->p_parent == NULL))
{
msg_Info (p_this, "%s(%s) on detached object", __func__, psz_name);
//vlc_backtrace ();
}
#endif
i_type &= VLC_VAR_CLASS;
for( vlc_object_t *obj = p_this; obj != NULL; obj = obj->p_parent )
{
if( var_GetChecked( obj, psz_name, i_type, p_val ) == VLC_SUCCESS )
return VLC_SUCCESS;
#ifndef NDEBUG
if (obj != p_this && obj != VLC_OBJECT(p_this->p_libvlc)
&& unlikely(obj->p_parent == NULL))
{
msg_Info (p_this, "%s(%s) on detached tree [%p] %s", __func__,
psz_name, obj, obj->psz_object_type);
//vlc_backtrace ();
}
#endif
}
/* else take value from config */
switch( i_type & VLC_VAR_CLASS )
{
case VLC_VAR_STRING:
p_val->psz_string = config_GetPsz( p_this, psz_name );
if( !p_val->psz_string ) p_val->psz_string = strdup("");
break;
case VLC_VAR_FLOAT:
p_val->f_float = config_GetFloat( p_this, psz_name );
break;
case VLC_VAR_INTEGER:
p_val->i_int = config_GetInt( p_this, psz_name );
break;
case VLC_VAR_BOOL:
p_val->b_bool = config_GetInt( p_this, psz_name );
break;
case VLC_VAR_ADDRESS:
return VLC_ENOOBJ;
default:
msg_Warn( p_this, "Could not inherit value for var %s "
"from config. Invalid Type", psz_name );
return VLC_ENOOBJ;
}
/*msg_Dbg( p_this, "Inherited value for var %s from config", psz_name );*/
return VLC_SUCCESS;
}
/**
* Get a variable's value
*
* \param p_this The object that holds the variable
* \param psz_name The name of the variable
* \param p_val Pointer to a vlc_value_t that will hold the variable's value
* after the function is finished
*/
int var_Get( vlc_object_t *p_this, const char *psz_name, vlc_value_t *p_val )
{
return var_GetChecked( p_this, psz_name, 0, p_val );
}
