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60 lines
2.1 KiB
C++
60 lines
2.1 KiB
C++
///////////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2012 maintech GmbH, Otto-Hahn-Str. 15, 97204 Hoechberg, Germany //
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// written by Christian Daniel //
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// Copyright (C) 2016, 2018 Edouard Griffiths, F4EXB <f4exb06@gmail.com> //
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// //
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// This program is free software; you can redistribute it and/or modify //
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// it under the terms of the GNU General Public License as published by //
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// the Free Software Foundation as version 3 of the License, or //
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// (at your option) any later version. //
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// //
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// This program is distributed in the hope that it will be useful, //
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// but WITHOUT ANY WARRANTY; without even the implied warranty of //
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
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// GNU General Public License V3 for more details. //
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// //
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// You should have received a copy of the GNU General Public License //
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// along with this program. If not, see <http://www.gnu.org/licenses/>. //
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///////////////////////////////////////////////////////////////////////////////////////
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#ifndef INCLUDE_SPINLOCK_H
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#define INCLUDE_SPINLOCK_H
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#include <QAtomicInt>
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#include "export.h"
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class SDRBASE_API Spinlock {
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public:
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void lock()
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{
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while(!m_atomic.testAndSetAcquire(0, 1)) ;
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}
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void unlock()
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{
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while(!m_atomic.testAndSetRelease(1, 0)) ;
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}
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protected:
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QAtomicInt m_atomic;
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};
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class SpinlockHolder {
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public:
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SpinlockHolder(Spinlock* spinlock) :
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m_spinlock(spinlock)
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{
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m_spinlock->lock();
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}
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~SpinlockHolder()
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{
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m_spinlock->unlock();
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}
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protected:
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Spinlock* m_spinlock;
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};
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#endif // INCLUDE_SPINLOCK_H
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