Mutex.h

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#ifndef included_AMP_Mutex
#define included_AMP_Mutex
 
#include <atomic>
#include <memory>
#include <mutex>
 
 
namespace AMP {
 
 
class AMP_MPI; // Forward decleration of AMP_MPI
 
 
class Mutex
{
public:
    Mutex();
    explicit Mutex( bool recursive );
    ~Mutex() = default;
    Mutex( const Mutex & ) = delete;
    Mutex &operator=( const Mutex & ) = delete;
    void lock();
    void unlock();
    bool tryLock();
    bool ownLock() const;
 
private:
    bool d_recursive;     // Is the lock recursive (this attribute cannot be changed)
    volatile int d_count; // lock_count
    volatile int d_id;    // thread_id
    std::mutex d_mutex;   // internal mutex
};
 
 
void lock_MPI_Mutex( AMP::Mutex &mutex, const AMP::AMP_MPI &comm );
 
 
} // namespace AMP
 
#endif