blob: 38054bface78849e8f082ef78ec9bb02910e5ec8 (
plain) (
tree)
|
|
/**
* @file
*
* @ingroup RTEMSScoreObject
*
* @brief Object ID to Name
*/
/*
* COPYRIGHT (c) 1989-2010.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems/score/objectimpl.h>
#include <string.h>
Objects_Control *_Objects_Get_by_name(
const Objects_Information *information,
const char *name,
size_t *name_length_p,
Objects_Get_by_name_error *error
)
{
size_t name_length;
size_t max_name_length;
Objects_Maximum maximum;
Objects_Maximum index;
_Assert( _Objects_Has_string_name( information ) );
_Assert( _Objects_Allocator_is_owner() );
if ( name == NULL ) {
*error = OBJECTS_GET_BY_NAME_INVALID_NAME;
return NULL;
}
name_length = strnlen( name, information->name_length + 1 );
max_name_length = information->name_length;
if ( name_length > max_name_length ) {
*error = OBJECTS_GET_BY_NAME_NAME_TOO_LONG;
return NULL;
}
if ( name_length_p != NULL ) {
*name_length_p = name_length;
}
maximum = _Objects_Get_maximum_index( information );
for ( index = 0; index < maximum; ++index ) {
Objects_Control *the_object;
the_object = information->local_table[ index ];
if ( the_object == NULL )
continue;
if ( the_object->name.name_p == NULL )
continue;
if ( strncmp( name, the_object->name.name_p, max_name_length ) == 0 ) {
return the_object;
}
}
*error = OBJECTS_GET_BY_NAME_NO_OBJECT;
return NULL;
}
|