#ifndef _THREAD_H
#define _THREAD_H
#include <pthread.h>

	
int sem=0;	/*the semphore variable*/
pthread_mutex_t ndone_mutex=PTHREAD_MUTEX_INITIALIZER;  /*thread lock*/
pthread_cond_t ndone_cond=PTHREAD_COND_INITIALIZER;		/*the condition variable*/	


#endif 	/*thread.h*/