#ifndef _mutex_h
#define _mutex_h

#include <pthread.h>


// Start class mutex
class Mutex {

public:
  // Constructors
  Mutex();

  ~Mutex();

  // Custom constructor not provided for portability
  // There is not much you can customize anyway
  //  Mutex(pthread_mutexattr_t attribute);


  // P() and V() return 0 on successful completion
  int P(void);	// Lock a mutex
  int V(void);	// Unlock the mutex


private:
  pthread_mutex_t mutex_var;
  bool locked;

}; 	// End class mutex


#endif