/*
* Copyright Amazon . com Inc . or its affiliates . All Rights Reserved .
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER .
*
* This code is free software ; you can redistribute it and / or modify it
* under the terms of the GNU General Public License version 2 only , as
* published by the Free Software Foundation .
*
* This code is distributed in the hope that it will be useful , but WITHOUT
* ANY WARRANTY ; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE . See the GNU General Public License
* version 2 for more details ( a copy is included in the LICENSE file that
* accompanied this code ) .
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work ; if not , write to the Free Software Foundation ,
* Inc . , 51 Franklin St , Fifth Floor , Boston , MA 02110 - 1301 USA .
*
* Please contact Oracle , 500 Oracle Parkway , Redwood Shores , CA 94065 USA
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* questions .
*
*/
#ifndef CPU_AARCH64_SPIN_WAIT_AARCH64_HPP
#define CPU_AARCH64_SPIN_WAIT_AARCH64_HPP
class SpinWait {
public :
enum Inst {
NONE = -1 ,
NOP,
ISB,
YIELD
};
private :
Inst _inst;
int _count;
public :
SpinWait(Inst inst = NONE, int count = 0 ) : _inst(inst), _count(count) {}
Inst inst() const { return _inst; }
int inst_count() const { return _count; }
};
#endif // CPU_AARCH64_SPIN_WAIT_AARCH64_HPP
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