Adding Code for freeRTOS

osal/FreeRTOS/Timekeeper.h

@@ -0,0 +1,33 @@
+#ifndef FRAMEWORK_OSAL_FREERTOS_TIMEKEEPER_H_
+#define FRAMEWORK_OSAL_FREERTOS_TIMEKEEPER_H_
+
+#include <framework/timemanager/Clock.h>
+
+#include <FreeRTOS.h>
+
+/**
+ * A Class to basically store the time difference between uptime and UTC
+ * so the "time-agnostic" FreeRTOS can keep an UTC Time
+ *
+ * Implemented as Singleton, so the FSFW Clock Implementation (see Clock.cpp)
+ * can use it without having a member.
+ */
+
+class Timekeeper {
+private:
+	Timekeeper();
+
+	timeval offset;
+
+	static Timekeeper * myinstance;
+public:
+	static Timekeeper * instance();
+	virtual ~Timekeeper();
+
+	static timeval ticksToTimeval(TickType_t ticks);
+
+	const timeval& getOffset() const;
+	void setOffset(const timeval& offset);
+};
+
+#endif /* FRAMEWORK_OSAL_FREERTOS_TIMEKEEPER_H_ */