RecursiveSemaphore.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
#include "tarch/multicore/multicore.h"
#if !defined(_TARCH_MULTICORE_CPP_RECURSIVE_SEMAPHORE_H_) && defined(SharedCPP)
#define _TARCH_MULTICORE_CPP_RECURSIVE_SEMAPHORE_H_
 
#include <string>
#include <thread>
 
#include "tarch/multicore/BooleanSemaphore.h"
#include "tarch/logging/Log.h"
 
namespace tarch {
  namespace multicore {
    class RecursiveSemaphore;
    class RecursiveLock;
  }
}
 
class tarch::multicore::RecursiveSemaphore {
  private:
    friend class tarch::multicore::RecursiveLock;
 
    std::recursive_mutex _mutex;
 
    void enterCriticalSection();
    void leaveCriticalSection();
    bool tryEnterCriticalSection();
 
    inline RecursiveSemaphore(const RecursiveSemaphore&) {}
 
    inline RecursiveSemaphore& operator = (const RecursiveSemaphore&) { return *this; }
 
  public:
    RecursiveSemaphore();
    ~RecursiveSemaphore();
 
    using Lock = tarch::multicore::RecursiveLock;
};
 
#endif