Initial checkin of unified hierarchy of WPILib 2015

wpilibc/src/main/include/CounterBase.h

@@ -0,0 +1,31 @@
+/*----------------------------------------------------------------------------*/
+/* 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 CPPCOUNTER_BASE_H_
+#define CPPCOUNTER_BASE_H_
+
+/**
+ * Interface for counting the number of ticks on a digital input channel.
+ * Encoders, Gear tooth sensors, and counters should all subclass this so it can be used to
+ * build more advanced classes for control and driving.
+ */
+class CounterBase
+{
+public:
+	typedef enum {k1X, k2X, k4X} EncodingType;
+
+	virtual ~CounterBase() {}
+	virtual void Start() = 0;
+	virtual int32_t Get() = 0;
+	virtual void Reset() = 0;
+	virtual void Stop() = 0;
+	virtual double GetPeriod() = 0;
+	virtual void SetMaxPeriod(double maxPeriod) = 0;
+	virtual bool GetStopped() = 0;
+	virtual bool GetDirection() = 0;
+};
+
+#endif