[thin_show_dups] pull the various streams out to their own files

thin-provisioning/cache_stream.h

@@ -0,0 +1,41 @@
+#ifndef THIN_PROVISIONING_CACHE_STREAM_H
+#define THIN_PROVISIONING_CACHE_STREAM_H
+
+#include "thin-provisioning/chunk_stream.h"
+
+//----------------------------------------------------------------
+
+namespace thin_provisioning {
+	using namespace bcache;
+
+	class cache_stream : public chunk_stream {
+	public:
+		cache_stream(std::string const &path,
+			     block_address block_size,
+			     size_t cache_mem);
+
+		virtual block_address nr_chunks() const;
+		virtual void rewind();
+		virtual bool advance(block_address count = 1ull);
+		virtual block_address index() const;
+		virtual chunk const &get() const;
+
+	private:
+		void load(block_address b);
+
+		block_address block_size_;
+		block_address nr_blocks_;
+		block_address cache_blocks_;
+		int fd_;
+		validator::ptr v_;
+		std::auto_ptr<block_cache> cache_;
+
+		block_address current_index_;
+		block_cache::auto_block current_block_;
+		chunk current_chunk_;
+	};
+}
+
+//----------------------------------------------------------------
+
+#endif