RGBCube/serenity
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Import all this stuff into a single repo called Serenity.

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This commit is contained in:
Andreas Kling 2018-10-10 11:53:07 +02:00
commit 5a30055157
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30
VirtualFileSystem/DeviceBackedFileSystem.h Normal file
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#pragma once
#include "FileSystem.h"
#include <AK/ByteBuffer.h>
class DeviceBackedFileSystem : public FileSystem {
public:
virtual ~DeviceBackedFileSystem() override;
BlockDevice& device() { return *m_device; }
const BlockDevice& device() const { return *m_device; }
unsigned blockSize() const { return m_blockSize; }
protected:
explicit DeviceBackedFileSystem(RetainPtr<BlockDevice>&&);
void setBlockSize(unsigned);
void invalidateCaches();
ByteBuffer readBlock(unsigned index) const;
ByteBuffer readBlocks(unsigned index, unsigned count) const;
bool writeBlock(unsigned index, const ByteBuffer&);
bool writeBlocks(unsigned index, unsigned count, const ByteBuffer&);
private:
unsigned m_blockSize { 0 };
RetainPtr<BlockDevice> m_device;
};