45 lines
844 B
C++
45 lines
844 B
C++
#ifndef __BITMAP_H__
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#define __BITMAP_H__
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#include <stdint.h>
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class BlockDevice;
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namespace ProFUSE {
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class Bitmap {
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public:
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Bitmap(unsigned blocks);
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Bitmap(BlockDevice *device, int keyPointer, int blocks);
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//todo -- constructor by loading fro, block device...
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~Bitmap();
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int allocBlock();
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int allocBlock(unsigned block);
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void freeBlock(unsigned block);
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unsigned freeBlocks() const { return _freeBlocks; }
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unsigned blocks() const { return _blocks; }
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unsigned bitmapBlocks() const { return _bitmapBlocks; }
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unsigned bitmapSize() const { return _bitmapBlocks * 512; }
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const void *bitmap() const { return _bitmap; }
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private:
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unsigned _freeIndex;
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unsigned _freeBlocks;
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unsigned _blocks;
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unsigned _bitmapBlocks;
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uint8_t *_bitmap;
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};
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}
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#endif
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