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diff --git a/src/type3_AndroidCloud/anbox-master/src/anbox/common/loop_device.h b/src/type3_AndroidCloud/anbox-master/src/anbox/common/loop_device.h
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+++ b/src/type3_AndroidCloud/anbox-master/src/anbox/common/loop_device.h
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+/*
+ * Copyright (C) 2017 Simon Fels <morphis@gravedo.de>
+ *
+ * This program is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 3, as published
+ * by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranties of
+ * MERCHANTABILITY, SATISFACTORY QUALITY, 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 this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef ANBOX_COMMON_LOOP_DEVICE_H_
+#define ANBOX_COMMON_LOOP_DEVICE_H_
+
+#include "anbox/common/fd.h"
+
+#include <boost/filesystem/path.hpp>
+
+namespace anbox {
+namespace common {
+class LoopDevice {
+ public:
+  static std::shared_ptr<LoopDevice> create(const boost::filesystem::path &path);
+
+  ~LoopDevice();
+
+  bool attach_file(const boost::filesystem::path &file_path);
+
+  boost::filesystem::path path() const { return path_; }
+
+ private:
+  LoopDevice(Fd fd, const boost::filesystem::path &path);
+
+  Fd fd_;
+  boost::filesystem::path path_;
+};
+} // namespace common
+} // namespace anbox
+
+#endif