#include <stdio.h>
#include <string.h>

int TCP_RUN_NUMBER;
/* 重新计时 */
extern char again_udp(void)
{
	if(TCP_RUN_NUMBER == 0)
	{
		return 1;
	}
	sleep(1);
	TCP_RUN_NUMBER--;
	
	return 0;
}
int main(void)
{
	TCP_RUN_NUMBER = 5;
	while(1){
		if (again_udp())
			break;
		printf("1\n");
	}
	printf("2\n");
}