moved trunk into place

bindings/cpp/include/portaudiocpp/CallbackStream.hxx

@@ -0,0 +1,40 @@
+#ifndef INCLUDED_PORTAUDIO_CALLBACKSTREAM_HXX
+#define INCLUDED_PORTAUDIO_CALLBACKSTREAM_HXX
+
+// ---------------------------------------------------------------------------------------
+
+#include "portaudio.h"
+
+#include "portaudiocpp/Stream.hxx"
+
+// ---------------------------------------------------------------------------------------
+
+// Declaration(s):
+namespace portaudio
+{
+
+
+	//////
+	/// @brief Base class for all Streams which use a callback-based mechanism.
+	//////
+	class CallbackStream : public Stream
+	{
+	protected:
+		CallbackStream();
+		virtual ~CallbackStream();
+
+	public:
+		// stream info (time-varying)
+		double cpuLoad() const;
+
+	private:
+		CallbackStream(const CallbackStream &); // non-copyable
+		CallbackStream &operator=(const CallbackStream &); // non-copyable
+	};
+
+
+} // namespace portaudio
+
+// ---------------------------------------------------------------------------------------
+
+#endif // INCLUDED_PORTAUDIO_CALLBACKSTREAM_HXX