Initial checkin. Mostly empty implementation of UDF 2.50 metadata partitions.

git-svn-id: file:///srv/svn/repos/haiku/trunk/current@5230 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/add-ons/kernel/file_systems/udf/MetadataPartition.cpp

@@ -0,0 +1,44 @@
+#include "MetadataPartition.h"
+
+#define B_NOT_IMPLEMENTED B_ERROR
+
+using namespace Udf;
+
+/*! \brief Creates a new MetadataPartition object.
+*/
+MetadataPartition::MetadataPartition(Partition &parentPartition,
+                                     uint32 metadataFileLocation,
+	                                 uint32 metadataMirrorFileLocation,
+	                                 uint32 metadataBitmapFileLocation,
+	                                 uint32 allocationUnitSize,
+	                                 uint16 alignmentUnitSize,
+	                                 bool metadataIsDuplicated)
+	: fParentPartition(parentPartition)
+	, fAllocationUnitSize(allocationUnitSize)
+	, fAlignmentUnitSize(alignmentUnitSize)
+	, fMetadataIsDuplicated(metadataIsDuplicated)
+	, fInitStatus(B_NO_INIT)
+{
+}
+
+/*! \brief Destroys the MetadataPartition object.
+*/
+MetadataPartition::~MetadataPartition()
+{
+}
+
+/*! \brief Maps the given logical block to a physical block on disc.
+*/
+status_t
+MetadataPartition::MapBlock(uint32 logicalBlock, uint32 &physicalBlock)
+{
+	return B_NOT_IMPLEMENTED;
+}
+
+/*! Returns the initialization status of the object.
+*/
+status_t
+MetadataPartition::InitCheck()
+{
+	return fInitStatus;
+}

src/add-ons/kernel/file_systems/udf/MetadataPartition.h

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+//----------------------------------------------------------------------
+//  This software is part of the OpenBeOS distribution and is covered 
+//  by the OpenBeOS license.
+//
+//  Copyright (c) 2003 Tyler Dauwalder, [email protected]
+//---------------------------------------------------------------------
+#ifndef _UDF_METADATA_PARTITION_H
+#define _UDF_METADATA_PARTITION_H
+
+/*! \file MetadataPartition.h
+*/
+
+#include <kernel_cpp.h>
+
+#include "Partition.h"
+#include "UdfDebug.h"
+
+namespace Udf {
+
+/*! \brief Type 2 metadata partition
+
+	Metadata partitions allow for clustering of metadata (ICBs, directory
+	contents, etc.) and also provide the option of metadata duplication.
+	
+	See also UDF-2.50 2.2.10, UDF-2.50 2.2.13
+*/
+class MetadataPartition : public Partition {
+public:
+	MetadataPartition(Partition &parentPartition, uint32 metadataFileLocation,
+	                  uint32 metadataMirrorFileLocation, uint32 metadataBitmapFileLocation,
+	                  uint32 allocationUnitSize, uint16 alignmentUnitSize,
+	                  bool metadataIsDuplicated);
+	virtual ~MetadataPartition();
+	virtual status_t MapBlock(uint32 logicalBlock, uint32 &physicalBlock);
+	
+	status_t InitCheck();
+
+	uint32 AllocationUnitSize() const { return fAllocationUnitSize; }
+	uint16 AlignmentUnitSize() const { return fAlignmentUnitSize; }
+	uint32 MetadataIsDuplicated() const { return fMetadataIsDuplicated; }
+private:
+	Partition &fParentPartition;
+	uint32 fAllocationUnitSize;
+	uint16 fAlignmentUnitSize;
+	bool fMetadataIsDuplicated;
+	status_t fInitStatus;
+};
+
+};	// namespace Udf
+
+#endif	// _UDF_METADATA_PARTITION_H