/** * @file * * @brief Get the First Node * @ingroup ScoreChain */ /* * COPYRIGHT (c) 1989-2007. * 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. */ #if HAVE_CONFIG_H #include "config.h" #endif #include #include #include #include Chain_Node *_Chain_Get( Chain_Control *the_chain ) { ISR_Level level; Chain_Node *return_node; return_node = NULL; _ISR_Disable( level ); if ( !_Chain_Is_empty( the_chain ) ) return_node = _Chain_Get_first_unprotected( the_chain ); _ISR_Enable( level ); return return_node; }