fifo1.c

UNIX环境高级编程第二版（英文版）配书的源代码

#include "apue.h"
#include <fcntl.h>

#define	FIFO	"temp.fifo"

int
main(void)
{
	int		fdread, fdwrite;

	unlink(FIFO);
	if (mkfifo(FIFO, FILE_MODE) < 0)
		err_sys("mkfifo error");
	if ((fdread = open(FIFO, O_RDONLY | O_NONBLOCK)) < 0)
		err_sys("open error for reading");
	if ((fdwrite = open(FIFO, O_WRONLY)) < 0)
		err_sys("open error for writing");
	clr_fl(fdread, O_NONBLOCK);
	exit(0);
}