gistfile1.txt

#define _BSD_SOURCE
#include <time.h>
#include <string.h>
#include "racer.h"
#include "display.h"
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <pthread.h>
long  maxSpeedDelay ;

void initRacers( long milliseconds ){
	srand(time(NULL));
	if(milliseconds<0) maxSpeedDelay = DEFAULT_WAIT;
	else
		maxSpeedDelay = milliseconds;

}

char * getfullCar(char * name,int isflat){
	char *car = malloc(sizeof(char)*(MAX_CAR_LEN+1));
	sprintf(car,"~%c=-------o>",isflat==1?'X':'O');
	for(int i =0;i<strlen(name);i++){
		car[i+3] = name[i];
	}
	return car;
	
}

Racer *makeRacer( char *name, int position ){
	Racer *racer = (Racer *)malloc(sizeof(Racer));
	racer->dist = 0;
	racer->row = position;
	racer->graphic = getfullCar(name,0);
	return racer;
}

void outputCar(Racer *racer){
	for(int i=0;i<MAX_CAR_LEN;i++){
		set_cur_pos(racer->row,racer->dist + i);
		put(racer->graphic[i]);
	}
}
void clearTail(Racer *racer){
	if(racer->dist==0)return;
	set_cur_pos(racer->row,racer->dist -1);
	put(' ');
}
void destroyRacer( Racer *racer ){
	free(racer->graphic);
	free(racer);
}

pthread_mutex_t count_mutex;

void *run( void *racer ){
	Racer *myracer = (Racer *)racer;
	int flatTire = 0;
	while(myracer->dist <= FINISH_LINE){

		pthread_mutex_lock(&count_mutex);
		outputCar(myracer);
		clearTail(myracer);
		pthread_mutex_unlock(&count_mutex);
		myracer->dist++;
		int speedDelay = rand()%maxSpeedDelay;
		if(speedDelay <= 3){
			myracer->graphic[1]='X';
			break;

		}
		usleep(rand()%speedDelay);
		
	}
	/*return 0;*/

}

gistfile2.txt

#include <pthread.h>
#include "racer.h"
#include "display.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>    /* for strerror() */
#define NUM_THREADS     5

void *PrintHello(void *threadid)
{
	long tid;
	tid = (long)threadid;
	printf("Hello World! It's me, thread #%ld!\n", tid);
	pthread_exit(NULL);

}

int main (int argc, char *argv[])
{
	clear();
	initRacers(500000);
	Racer *racecar = makeRacer("harsh",3);
	Racer *racecar2 = makeRacer("khant",6);


	pthread_t threads[2];
	pthread_create(&threads[0],NULL,run,(void *)racecar);
	pthread_create(&threads[1],NULL,run,(void *)racecar2);
	pthread_join(threads[0],NULL)	;
	pthread_join(threads[1],NULL)	;
	set_cur_pos(7,0);
	return 0;

	/*pthread_t threads[NUM_THREADS];*/
	/*int rc;*/
	/*long t;*/
	/*for(t=0; t<NUM_THREADS; t++){*/
		/*printf("In main: creating thread %ld\n", t);*/
		/*rc = pthread_create(&threads[t], NULL, PrintHello, (void *)t);*/
		/*if (rc){*/
			/*printf("ERROR; return code from pthread_create() is %d\n", rc);*/
			/*exit(-1);*/

		/*}*/

	/*}*/

	/*pthread_exit(NULL);*/


}