Rename FluxReader and FluxWriter to FluxSource and FluxSink.

lib/fluxsource/fluxsource.h

@@ -0,0 +1,30 @@
+#ifndef FLUXSOURCE_H
+#define FLUXSOURCE_H
+
+class Fluxmap;
+class DataSpec;
+
+class FluxSource
+{
+public:
+    virtual ~FluxSource() {}
+
+private:
+    static std::unique_ptr<FluxSource> createSqliteFluxSource(const std::string& filename);
+    static std::unique_ptr<FluxSource> createHardwareFluxSource(unsigned drive);
+    static std::unique_ptr<FluxSource> createStreamFluxSource(const std::string& path);
+
+public:
+    static std::unique_ptr<FluxSource> create(const DataSpec& spec);
+
+public:
+    virtual std::unique_ptr<Fluxmap> readFlux(int track, int side) = 0;
+    virtual void recalibrate() {}
+    virtual bool retryable() { return false; }
+};
+
+extern void setHardwareFluxSourceRevolutions(int revolutions);
+extern void setHardwareFluxSourceDensity(bool high_density);
+
+#endif
+