forked from Imagelibrary/rtems
8932955e9a
* rtems/src/rtemsobjectsetname.c, score/src/objectgetinfoid.c, score/src/objectgetnameasstring.c, score/src/objectidtoname.c: Handle Object Id of SELF.
96 lines
2.2 KiB
C
96 lines
2.2 KiB
C
/*
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* COPYRIGHT (c) 1989-2008.
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* On-Line Applications Research Corporation (OAR).
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rtems.com/license/LICENSE.
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*
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* $Id$
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <rtems/system.h>
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#include <rtems/score/object.h>
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#include <rtems/score/thread.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <ctype.h>
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#include <inttypes.h>
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/*
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* This method objects the name of an object and returns its name
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* in the form of a C string. It attempts to be careful about
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* overflowing the user's string and about returning unprintable characters.
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*/
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char *_Objects_Get_name_as_string(
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Objects_Id id,
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size_t length,
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char *name
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)
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{
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Objects_Information *information;
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const char *s;
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char *d;
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uint32_t i;
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char lname[5];
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Objects_Control *the_object;
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Objects_Locations location;
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Objects_Id tmpId;
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if ( length == 0 )
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return NULL;
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if ( name == NULL )
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return NULL;
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tmpId = (id == OBJECTS_ID_OF_SELF) ? _Thread_Executing->Object.id : id;
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information = _Objects_Get_information_id( tmpId );
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if ( !information )
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return NULL;
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the_object = _Objects_Get( information, tmpId, &location );
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switch ( location ) {
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#if defined(RTEMS_MULTIPROCESSING)
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case OBJECTS_REMOTE:
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/* not supported */
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#endif
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case OBJECTS_ERROR:
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return NULL;
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case OBJECTS_LOCAL:
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if ( information->is_string ) {
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s = the_object->name.name_p;
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} else {
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uint32_t u32_name = (uint32_t) the_object->name.name_u32;
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lname[ 0 ] = (u32_name >> 24) & 0xff;
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lname[ 1 ] = (u32_name >> 16) & 0xff;
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lname[ 2 ] = (u32_name >> 8) & 0xff;
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lname[ 3 ] = (u32_name >> 0) & 0xff;
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lname[ 4 ] = '\0';
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s = lname;
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}
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d = name;
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if ( s ) {
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for ( i=0 ; i<(length-1) && *s ; i++, s++, d++ ) {
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*d = (isprint(*s)) ? *s : '*';
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}
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}
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*d = '\0';
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_Thread_Enable_dispatch();
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return name;
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}
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return NULL; /* unreachable path */
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}
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