--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vd_watchdog/vd_watchdog.c	Tue Jul 08 09:57:54 2008 +0800
@@ -0,0 +1,48 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#include "vordog.h"
+
+#define DEVNAME "/dev/vordog0"
+#define PROG "vd_watchdog"
+
+static void
+watchdog(int min) {
+    struct vordog_cfg cfg;
+    int intval;
+    int r;
+    int fd;
+
+    fd = open(DEVNAME, O_RDWR);
+    if(fd == -1) {
+	perror(PROG);
+	exit(1);
+    }
+    cfg.init_val = min;
+    cfg.unit = VDT_1M;
+    r = ioctl(fd, VDCTL_ENABLE, &cfg);
+    if(r == -1) {
+	perror(PROG);
+	exit(1);
+    }
+    
+    intval = min * 60 * 3 / 4;
+    while(1) {
+	sleep(intval);
+	r = ioctl(fd, VDCTL_RESET);
+	if(r == -1) {
+	    perror(PROG);
+	    exit(1);
+	}
+	printf("reset\n");
+    }
+}
+
+
+int
+main(int argc, const char *argv[]) {
+    watchdog(1);
+    return 0;
+}