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

thin-provisioning/chunk_stream.h

@@ -0,0 +1,60 @@
+// Copyright (C) 2015 Red Hat, Inc. All rights reserved.
+//
+// This file is part of the thin-provisioning-tools source.
+//
+// thin-provisioning-tools is free software: you can redistribute it
+// and/or modify it under the terms of the GNU General Public License
+// as published by the Free Software Foundation, either version 3 of
+// the License, or (at your option) any later version.
+//
+// thin-provisioning-tools is distributed in the hope that it will be
+// useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+// of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along
+// with thin-provisioning-tools.  If not, see
+// <http://www.gnu.org/licenses/>.
+
+#ifndef CHUNK_STREAM_H
+#define CHUNK_STREAM_H
+
+#include "block-cache/block_cache.h"
+
+#include <deque>
+#include <stdint.h>
+
+//----------------------------------------------------------------
+
+namespace thin_provisioning {
+	struct mem {
+		mem(uint8_t *b, uint8_t *e)
+			: begin(b),
+			  end(e) {
+		}
+
+		uint8_t *begin, *end;
+	};
+
+	struct chunk {
+		// FIXME: switch to bytes rather than sectors
+		// FIXME: add length too
+		uint64_t offset_sectors_;
+		std::deque<mem> mem_;
+	};
+
+	class chunk_stream {
+	public:
+		virtual ~chunk_stream() {}
+
+		virtual bcache::block_address nr_chunks() const = 0;
+		virtual void rewind() = 0;
+		virtual bool advance(bcache::block_address count = 1ull) = 0;
+		virtual bcache::block_address index() const = 0;
+		virtual chunk const &get() const = 0;
+	};
+}
+
+//----------------------------------------------------------------
+
+#endif