runner.c

#include <stdio.h>
#include <stdlib.h>

void initializeFiles();
int runSample();
void runSampleNTimes(int n);

int main() 
{
	// initialize files
	initializeFiles();
	
	// run sample the first time to get the total synchronization points
	int n = runSample();
	//printf("n is %d\n",n);
	runSampleNTimes(n);
}

void initializeFiles() 
{
	FILE *f1 = fopen("syncpoints.txt","w");
	FILE *f2 = fopen("nth-thread.txt","w");

	system("touch results.txt");
	
	fprintf(f1,"%d\n",0);
	fprintf(f2,"%d\n",1);
	
	fclose(f1);
	fclose(f2);
}

// first execution	
// TODO change the sample file name here
int runSample()
{
	system("./run.sh ./sample2");
	int temp;
	FILE *f1 = fopen("syncpoints.txt","r");
	fscanf(f1,"%d",&temp);
	fclose(f1);
	//printf("points is \n");
	system("cat syncpoints.txt");
	return temp;
}

// runs sample file n amount of times
// TODO change the sample file name here
void runSampleNTimes(int n)
{
	//fprintf(stderr, "n is  %d\n\n", n);
	int i;
	FILE *outputfile = fopen("results.txt","a+");	
	for (i = 1 ; i <= n ; i++) 
	{
		fprintf(stderr, "iteration number %d\n", i);
		
		FILE *f = fopen("nth-thread.txt","w");
		fprintf(f,"%d",i);
		fclose(f);
		int result = system("./run.sh ./sample2");
		//fprintf(stderr,"result = %d\n", result);


		fprintf(outputfile,"%d\n",result);
	//	printf("@i = %d\n\n",i);
	//	system("cat nth-thread.txt");
	}
	fclose(outputfile);
}