Add a simple Node implementation for BFS files (and everything else that

needs access to the stream directly).


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@4654 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/kernel/boot/loader/file_systems/bfs/File.cpp

@@ -0,0 +1,79 @@
+/*
+** Copyright 2003, Axel Dörfler, [email protected]. All rights reserved.
+** Distributed under the terms of the OpenBeOS License.
+*/
+
+
+#include "File.h"
+
+
+namespace BFS {
+
+File::File(Volume &volume, block_run run)
+	:
+	fStream(volume, run)
+{
+}
+
+
+File::File(Volume &volume, off_t id)
+	:
+	fStream(volume, id)
+{
+}
+
+
+File::File(const Stream &stream)
+	:
+	fStream(stream)
+{
+}
+
+
+File::~File()
+{
+}
+
+
+status_t 
+File::InitCheck()
+{
+	return fStream.InitCheck();
+}
+
+
+ssize_t 
+File::ReadAt(void *cookie, off_t pos, void *buffer, size_t bufferSize)
+{
+	return fStream.ReadAt(pos, (uint8 *)buffer, &bufferSize);
+}
+
+
+ssize_t 
+File::WriteAt(void *cookie, off_t pos, const void *buffer, size_t bufferSize)
+{
+	return EROFS;
+}
+
+
+status_t 
+File::GetName(char *nameBuffer, size_t bufferSize) const
+{
+	return B_ERROR;
+}
+
+
+int32 
+File::Type() const
+{
+	return S_IFREG;
+}
+
+
+off_t 
+File::Size() const
+{
+	return fStream.Size();
+}
+
+}	// namespace BFS

src/kernel/boot/loader/file_systems/bfs/File.h

@@ -0,0 +1,39 @@
+/*
+** Copyright 2003, Axel Dörfler, [email protected]. All rights reserved.
+** Distributed under the terms of the OpenBeOS License.
+*/
+#ifndef FILE_H
+#define FILE_H
+
+
+#include <boot/vfs.h>
+
+#include "Volume.h"
+#include "Stream.h"
+
+
+namespace BFS {
+
+class File : public Node {
+	public:
+		File(Volume &volume, block_run run);
+		File(Volume &volume, off_t id);
+		File(const Stream &stream);
+		virtual ~File();
+
+		status_t InitCheck();
+
+		virtual ssize_t ReadAt(void *cookie, off_t pos, void *buffer, size_t bufferSize);
+		virtual ssize_t WriteAt(void *cookie, off_t pos, const void *buffer, size_t bufferSize);
+
+		virtual status_t GetName(char *nameBuffer, size_t bufferSize) const;
+		virtual int32 Type() const;
+		virtual off_t Size() const;
+
+	private:
+		Stream		fStream;
+};
+
+}	// namespace BFS
+
+#endif	/* FILE_H */