#pragma once

#include "q3common.h"
#include <uPRNG.h>
#include "BargingCheckBridge.h"

using namespace std;

#if defined( MC ) // Mutex/Cond Soln
class Bridge {
	// YOU ADD DECLARATIONS AND MEMBERS	
#elif defined( SEM ) // Semaphore Soln
#include <uSemaphore.h>
class Bridge {
	// YOU ADD DECLARATIONS AND MEMBERS
#else
	#error unsupported bridge type
#endif
	BCHECK_DECL;	
	void startNorth( unsigned int id );
	void startSouth( unsigned int id );
	void endNorth( unsigned int id );
	void endSouth( unsigned int id );
	// YOU ADD COMMON PRIVATE DECLARATIONS AND MEMBERS
  public:												// common interface
	enum Direction { NORTH = 'N', SOUTH = 'S' };
	void cross( unsigned int id, Direction dir ) {
		// YOU WRITE THIS CODE
	} // cross
}; // Bridge

// Local Variables: //
// tab-width: 4 //
// mode: c++ //
// compile-command: "make bridge BIMPL=EXT" //
// End: //