static int wdt_fd = -1;
static int wdt_frequency = 5;
-static void watchdog_timeout_cb(struct uloop_timeout *t)
+void watchdog_ping(void)
{
DEBUG(4, "Ping\n");
- if (write(wdt_fd, "X", 1) < 0)
+ if (wdt_fd >= 0 && write(wdt_fd, "X", 1) < 0)
ERROR("WDT failed to write: %s\n", strerror(errno));
+}
+
+static void watchdog_timeout_cb(struct uloop_timeout *t)
+{
+ watchdog_ping();
uloop_timeout_set(t, wdt_frequency * 1000);
}