periodic_monitor.c

fsmlabs的real time linux的内核

/*
 * (C) Finite State Machine Labs Inc. 1999 [e-mail]
 *
 * Released under the terms of GPL 2.
 * Open RTLinux makes use of a patented process described in
 * US Patent 5,995,745. Use of this process is governed
 * by the Open RTLinux Patent License which can be obtained from
 * www.fsmlabs.com/PATENT or by sending email to
 * [e-mail]
 */

#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 "common.h"

int main()
{
	int n, i = 0, fd0;
	struct sample samp;

	if ((fd0 = open("/dev/rtf0", O_RDONLY)) < 0) {
		fprintf(stderr, "Error opening /dev/rtf0\n");
		exit(1);
	}


	while (i++ < 100) {
		n = read(fd0, &samp, sizeof(samp));
	}

	return 0;
}