76 lines
1.4 KiB
C++
76 lines
1.4 KiB
C++
/*
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* \brief FFAT file-system node
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* \author Christian Prochaska
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* \date 2012-07-04
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*/
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/*
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* Copyright (C) 2012-2017 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU Affero General Public License version 3.
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*/
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#ifndef _NODE_H_
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#define _NODE_H_
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/* Genode includes */
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#include <file_system/node.h>
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#include <base/log.h>
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#include <os/path.h>
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/* ffat includes */
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namespace Ffat { extern "C" {
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#include <ffat/ff.h>
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} }
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namespace Ffat_fs {
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using namespace File_system;
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typedef Genode::Path<_MAX_LFN + 1> Absolute_path;
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class Node;
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}
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class Ffat_fs::Node : public Node_base
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{
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protected:
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Absolute_path _name;
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public:
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Node(const char *name) : _name(name) { }
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char const *name() { return _name.base(); }
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/*
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* A generic Node object can be created to represent a file or
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* directory by its name without opening it, so the functions
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* of this class must not be abstract.
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*/
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virtual size_t read(char *dst, size_t len, seek_off_t)
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{
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Genode::error("read() called on generic Node object");
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return 0;
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}
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virtual size_t write(char const *src, size_t len, seek_off_t)
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{
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Genode::error("write() called on generic Node object");
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return 0;
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}
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/*
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* File functionality
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*/
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virtual void truncate(file_size_t size)
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{
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Genode::error(__PRETTY_FUNCTION__, " called on a non-file node");
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}
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};
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#endif /* _NODE_H_ */
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