#include <stdio.h>#include <errno.h>#include <sys/time.h>#include <sys/types.h>#include <fcntl.h>#include <unistd.h>#include <sys/ioctl.h>#include <rtl_fifo.h>#include <rtl_time.h>#include "bulk.h"struct timeval t,t2;int buf[BUF_SIZE];int main(){	int fdr;	int fdw;	int n,i;	unsigned long long  us =0,mbps;		if ((fdr = open("/dev/rtf1", O_RDONLY)) < 0) {		fprintf(stderr, "Error opening /dev/rtf1\n");		exit(1);	}	if ((fdw = open("/dev/rtf2", O_WRONLY)) < 0) {		fprintf(stderr, "Error opening /dev/rtf2\n");		exit(1);	}	gettimeofday(&t,0);	for (i = 0; i < COUNT* (BUF_SIZE* sizeof(int)); i+=n) {	    n = read(fdr, buf, sizeof(buf));	    if(n <0){		    printf("Error in reading %d\n",n);		    break;	    }	}	gettimeofday(&t2,0);	us = ((t2.tv_sec - t.tv_sec)*1000000) + t2.tv_usec;	us -= t.tv_usec;	mbps = i/us;        printf("Read %d bytes in %Ld microseconds = %Ld Mb/second \n",i,us,mbps);	fflush(stdout);	gettimeofday(&t,0);	for (i = 0; i < COUNT* (BUF_SIZE* sizeof(int)); i+=n) {	    n = write(fdw, buf, sizeof(buf));	    if(n <0){		    printf("Error in writing %d\n",n);		    break;	    }	}	gettimeofday(&t2,0);	us = (t2.tv_sec*1000000) + t2.tv_usec;	us -= ((t.tv_sec*1000000) + t.tv_usec);	mbps = i/us;        printf("Wrote %d bytes in %Ld microseconds = %Ld Mb/second \n",i,us,mbps);	return 0;}