Initial checkin of unified hierarchy of WPILib 2015

wpilibc/src/main/include/Timer.h

@@ -0,0 +1,49 @@
+/*----------------------------------------------------------------------------*/
+/* Copyright (c) FIRST 2008. All Rights Reserved.							  */
+/* Open Source Software - may be modified and shared by FRC teams. The code   */
+/* must be accompanied by the FIRST BSD license file in $(WIND_BASE)/WPILib.  */
+/*----------------------------------------------------------------------------*/
+
+#ifndef TIMER_H_
+#define TIMER_H_
+
+#include "HAL/Semaphore.h"
+#include "Base.h"
+
+typedef void (*TimerInterruptHandler)(void *param);
+
+void Wait(double seconds);
+double GetClock();
+double GetTime();
+
+
+/**
+ * Timer objects measure accumulated time in seconds.
+ * The timer object functions like a stopwatch. It can be started, stopped, and cleared. When the
+ * timer is running its value counts up in seconds. When stopped, the timer holds the current
+ * value. The implementation simply records the time when started and subtracts the current time
+ * whenever the value is requested.
+ */
+class Timer
+{
+public:
+	Timer();
+	virtual ~Timer();
+	double Get();
+	void Reset();
+	void Start();
+	void Stop();
+	bool HasPeriodPassed(double period);
+
+	static double GetFPGATimestamp();
+	static double GetPPCTimestamp();
+
+private:
+	double m_startTime;
+	double m_accumulatedTime;
+	bool m_running;
+	MUTEX_ID m_semaphore;
+	DISALLOW_COPY_AND_ASSIGN(Timer);
+};
+
+#endif