#!/usr/local/bin/tcc -run
#include <stdio.h>
#include <stdlib.h>
#include <sys/time.h>
#include <termios.h>
#include <unistd.h>
struct termios otm,ntm;
struct timeval tv, start;
int main(void) {
  sleep(5);
	int milli; char c;
	if(tcgetattr(0,&otm)<0){exit(1);}
	ntm=otm;
	cfmakeraw(&ntm);
	ntm.c_oflag |=ONLCR|OPOST;
	ntm.c_lflag &= ~(ICANON|ECHO);
	if(tcsetattr(0,TCSANOW,&ntm)<0){exit (1);}

  printf("go\n");
	gettimeofday(&start,0);

  c=getchar();
	gettimeofday(&tv,0);
	milli=(tv.tv_sec-start.tv_sec)*1000+(tv.tv_usec-start.tv_usec)/1000;
	printf("[%c] %d ms\n",c,milli);

  c=getchar();
	gettimeofday(&tv,0);
	milli=(tv.tv_sec-start.tv_sec)*1000+(tv.tv_usec-start.tv_usec)/1000;
	printf("[%c] %d ms\n",c,milli);

  tcsetattr(0,TCSANOW,&otm);
  printf("fin.\n");
	return 0;
}