It is accomplished ...

git-svn-id: file:///srv/svn/repos/haiku/trunk/current@10 a95241bf-73f2-0310-859d-f6bbb57e9c96
2002-07-09 12:24:59 +00:00
commit 52a3801208
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+//----------------------------------------------------------------------
+//  This software is part of the OpenBeOS distribution and is covered 
+//  by the OpenBeOS license.
+//---------------------------------------------------------------------
+/*!
+	\file File.h
+	BFile interface declaration.
+*/
+#ifndef __sk_file_h__
+#define __sk_file_h__
+
+#include <DataIO.h>
+#include <Node.h>
+#include <StorageDefs.Private.h>
+
+#ifdef USE_OPENBEOS_NAMESPACE
+namespace OpenBeOS {
+#endif
+
+/*!
+	\class BFile
+	\brief BFile is a wrapper class for common operations on files providing
+	access to the file's content data and its attributes.
+	
+	A BFile represents a file in some file system. It implements the
+	BPositionIO interface and thus the methods to read from and write to the
+	file, and is derived of BNode to provide access to the file's attributes.
+
+	\author <a href='mailto:[email protected]'>Ingo Weinhold</a>
+	
+	\version 0.0.0
+*/
+class BFile : public BNode, public BPositionIO {
+public:
+	BFile();
+	BFile(const BFile &file);
+	BFile(const entry_ref *ref, uint32 openMode);
+	BFile(const BEntry *entry, uint32 openMode);
+	BFile(const char *path, uint32 openMode);
+	BFile(BDirectory *dir, const char *path, uint32 openMode);
+	virtual ~BFile();
+
+	status_t SetTo(const entry_ref *ref, uint32 openMode);
+	status_t SetTo(const BEntry *entry, uint32 openMode);
+	status_t SetTo(const char *path, uint32 openMode);
+	status_t SetTo(const BDirectory *dir, const char *path, uint32 openMode);
+
+	bool IsReadable() const;
+	bool IsWritable() const;
+
+	virtual ssize_t Read(void *buffer, size_t size);
+	virtual ssize_t ReadAt(off_t location, void *buffer, size_t size);
+	virtual ssize_t Write(const void *buffer, size_t size);
+	virtual ssize_t WriteAt(off_t location, const void *buffer, size_t size);
+
+	virtual off_t Seek(off_t offset, uint32 seekMode);
+	virtual off_t Position() const;
+
+	virtual status_t SetSize(off_t size);
+
+	BFile &operator=(const BFile &file);
+
+private:
+	virtual void _ReservedFile1();
+	virtual void _ReservedFile2();
+	virtual void _ReservedFile3();
+	virtual void _ReservedFile4();
+	virtual void _ReservedFile5();
+	virtual void _ReservedFile6();
+
+	uint32 _reservedData[8];
+
+private:
+	StorageKit::FileDescriptor get_fd() const;
+
+private:
+	//! The file's open mode.
+	uint32 fMode;
+};
+
+#ifdef USE_OPENBEOS_NAMESPACE
+};		// namespace OpenBeOS
+#endif
+
+#endif	// __sk_file_h__