BooleanSemaphore.h

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// This file is part of the Peano project. For conditions of distribution and
// use, please see the copyright notice at www.peano-framework.org
#pragma once
 
#include <string>
#include "tarch/multicore/multicore.h"
#include "tarch/multicore/BooleanSemaphore.h"
 
 
namespace tarch {
  namespace multicore {
    class BooleanSemaphore;
    class Lock;
  }
}
 
#if defined(SharedTBB)
 
#include <tbb/spin_mutex.h>
 
class tarch::multicore::BooleanSemaphore {
  private:
    friend class tarch::multicore::Lock;
    friend class tarch::mpi::BooleanSemaphore;
    friend class MultiReadSingleWriteSemaphore;
    friend class RecursiveSemaphore;
 
    tbb::spin_mutex   _mutex;
 
    void enterCriticalSection();
    void leaveCriticalSection();
    bool tryEnterCriticalSection();
 
    inline BooleanSemaphore(const BooleanSemaphore&) {}
 
    inline BooleanSemaphore& operator = (const BooleanSemaphore&) { return *this; }
 
  public:
    BooleanSemaphore();
    ~BooleanSemaphore();
 
    using Lock = tarch::multicore::Lock;
};
 
#endif