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/**
* @file
*
* @brief Extracts a Node from a Chain
*
* @ingroup Score
*/
/*
* COPYRIGHT (c) 1989-2008.
* 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/threadimpl.h>
#include <ctype.h>
/*
* This method objects the name of an object and returns its name
* in the form of a C string. It attempts to be careful about
* overflowing the user's string and about returning unprintable characters.
*/
char *_Objects_Get_name_as_string(
Objects_Id id,
size_t length,
char *name
)
{
Objects_Information *information;
const char *s;
char *d;
uint32_t i;
char lname[5];
Objects_Control *the_object;
ISR_lock_Context lock_context;
Objects_Id tmpId;
if ( length == 0 )
return NULL;
if ( name == NULL )
return NULL;
tmpId = (id == OBJECTS_ID_OF_SELF) ? _Thread_Get_executing()->Object.id : id;
information = _Objects_Get_information_id( tmpId );
if ( !information )
return NULL;
the_object = _Objects_Get_local( tmpId, &lock_context, information );
if ( the_object == NULL ) {
return NULL;
}
#if defined(RTEMS_SCORE_OBJECT_ENABLE_STRING_NAMES)
if ( information->is_string ) {
s = the_object->name.name_p;
} else
#endif
{
uint32_t u32_name = (uint32_t) the_object->name.name_u32;
lname[ 0 ] = (u32_name >> 24) & 0xff;
lname[ 1 ] = (u32_name >> 16) & 0xff;
lname[ 2 ] = (u32_name >> 8) & 0xff;
lname[ 3 ] = (u32_name >> 0) & 0xff;
lname[ 4 ] = '\0';
s = lname;
}
d = name;
if ( s ) {
for ( i=0 ; i<(length-1) && *s ; i++, s++, d++ ) {
*d = (isprint((unsigned char)*s)) ? *s : '*';
}
}
*d = '\0';
_ISR_lock_ISR_enable( &lock_context );
return name;
}
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