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

thin-provisioning/pool_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 POOL_STREAM_H
+#define POOL_STREAM_H
+
+#include "thin-provisioning/cache_stream.h"
+#include "thin-provisioning/rmap_visitor.h"
+#include "thin-provisioning/superblock.h"
+
+//----------------------------------------------------------------
+
+namespace thin_provisioning {
+	class pool_stream : public chunk_stream {
+	public:
+		pool_stream(cache_stream &stream,
+			    transaction_manager::ptr tm, superblock_detail::superblock const &sb,
+			    block_address nr_blocks);
+
+		block_address nr_chunks() const;
+		void rewind();
+		bool advance(block_address count = 1ull);
+		block_address index() const;
+		chunk const &get() const;
+
+	private:
+		typedef rmap_visitor::region region;
+		typedef rmap_visitor::rmap_region rmap_region;
+
+		// FIXME: too big to return by value
+		vector<rmap_region> read_rmap(transaction_manager::ptr tm, superblock_detail::superblock const &sb,
+					      block_address nr_blocks);
+		void init_rmap(transaction_manager::ptr tm, superblock_detail::superblock const &sb,
+			       block_address nr_blocks);
+		bool advance_one();
+
+		cache_stream &stream_;
+		vector<uint32_t> block_to_thin_;
+		block_address nr_mapped_;
+	};
+}
+
+//----------------------------------------------------------------
+
+#endif