added eive-watchdog

watchdog/Watchdog.h

@@ -0,0 +1,37 @@
+#ifndef WATCHDOG_WATCHDOG_H_
+#define WATCHDOG_WATCHDOG_H_
+
+#include <array>
+
+
+class WatchdogTask {
+public:
+    enum class States {
+        NOT_STARTED,
+        RUNNING,
+        SUSPENDED,
+        FAULTY
+    };
+
+    enum class LoopResult {
+        OK,
+        CANCEL_RQ,
+        RESTART_RQ,
+        TIMEOUT
+    };
+
+    WatchdogTask();
+
+    virtual ~WatchdogTask();
+
+    int performOperation();
+private:
+    int fd = 0;
+
+    std::array<uint8_t, 64> buf;
+    States state = States::NOT_STARTED;
+
+    LoopResult watchdogLoop();
+};
+
+#endif /* WATCHDOG_WATCHDOG_H_ */