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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>
/*
* Do not use isprint() from <ctypes.h> since this depends on the heavy weight
* C locale support of Newlib.
*/
static bool _Objects_Name_char_is_printable( char c )
{
unsigned char uc;
uc = (unsigned char) c;
return uc >= ' ' && uc <= '~';
}
size_t _Objects_Name_to_string(
Objects_Name name,
bool is_string,
char *buffer,
size_t buffer_size
)
{
char lname[ 5 ];
const char *s;
char *d;
size_t i;
#if defined(RTEMS_SCORE_OBJECT_ENABLE_STRING_NAMES)
if ( is_string ) {
s = name.name_p;
} else
#endif
{
lname[ 0 ] = (name.name_u32 >> 24) & 0xff;
lname[ 1 ] = (name.name_u32 >> 16) & 0xff;
lname[ 2 ] = (name.name_u32 >> 8) & 0xff;
lname[ 3 ] = (name.name_u32 >> 0) & 0xff;
lname[ 4 ] = '\0';
s = lname;
}
d = buffer;
i = 1;
if ( s != NULL ) {
while ( *s != '\0' ) {
if ( i < buffer_size ) {
*d = _Objects_Name_char_is_printable(*s) ? *s : '*';
++d;
}
++s;
++i;
}
}
if ( buffer_size > 0 ) {
*d = '\0';
}
return i - 1;
}
/*
* 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;
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( tmpId, &lock_context, information );
if ( the_object == NULL ) {
return NULL;
}
_Objects_Name_to_string(
the_object->name,
#if defined(RTEMS_SCORE_OBJECT_ENABLE_STRING_NAMES)
information->is_string,
#else
false,
#endif
name,
length
);
_ISR_lock_ISR_enable( &lock_context );
return name;
}
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