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/* SPDX-License-Identifier: BSD-2-Clause */
/**
* @file
*
* @ingroup RTEMSScoreObject
*
* @brief This source file contains the implementation of
* _Objects_Get_information().
*/
/*
* COPYRIGHT (c) 1989-2008.
* On-Line Applications Research Corporation (OAR).
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems/score/objectimpl.h>
Objects_Information *_Objects_Get_information(
Objects_APIs the_api,
uint16_t the_class
)
{
Objects_Information *info;
int the_class_api_maximum;
if ( !the_class )
return NULL;
/*
* This call implicitly validates the_api so we do not call
* _Objects_Is_api_valid above here.
*/
the_class_api_maximum = _Objects_API_maximum_class( the_api );
if ( the_class_api_maximum == 0 )
return NULL;
if ( the_class > (uint32_t) the_class_api_maximum )
return NULL;
if ( !_Objects_Information_table[ the_api ] )
return NULL;
info = _Objects_Information_table[ the_api ][ the_class ];
if ( !info )
return NULL;
/*
* In a multiprocessing configuration, we may access remote objects.
* Thus we may have 0 local instances and still have a valid object
* pointer.
*/
#if !defined(RTEMS_MULTIPROCESSING)
if ( _Objects_Get_maximum_index( info ) == 0 ) {
return NULL;
}
#endif
return info;
}
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