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33 lines
661 B
C
33 lines
661 B
C
/*
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* Copyright (C) 2014 Freie Universität Berlin
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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/**
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* @ingroup cpu
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* @{
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*
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* @file atomic.c
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* @brief atomic set and return function
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*
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* @author Kaspar Schleiser <kaspar@schleiser.de>
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* @author Oliver Hahm <oliver.hahm@inria.fr>
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*
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* @}
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*/
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#include "atomic.h"
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#include "cpu.h"
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unsigned int atomic_set_return(unsigned int *val, unsigned int set)
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{
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dINT();
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unsigned int old_val = *val;
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*val = set;
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eINT();
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return old_val;
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}
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