2009-11-21 01:45:08 +00:00
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#ifndef __BLOCKDEVICE_H__
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#define __BLOCKDEVICE_H__
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#include <stdint.h>
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#include <sys/types.h>
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2009-12-16 01:33:28 +00:00
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#include <ProFUSE/Exception.h>
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2009-11-21 01:45:08 +00:00
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2009-12-21 13:57:48 +00:00
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#include <Device/TrackSector.h>
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2009-12-16 01:33:28 +00:00
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namespace Device {
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2009-11-21 01:45:08 +00:00
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2010-03-23 03:02:06 +00:00
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class BlockCache;
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2009-12-21 13:57:48 +00:00
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2009-11-21 01:45:08 +00:00
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class BlockDevice {
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public:
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2009-12-12 23:57:17 +00:00
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2009-11-21 01:45:08 +00:00
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virtual ~BlockDevice();
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virtual void read(unsigned block, void *bp) = 0;
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2009-12-21 13:57:48 +00:00
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virtual void read(TrackSector ts, void *bp);
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2009-11-21 01:45:08 +00:00
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virtual void write(unsigned block, const void *bp) = 0;
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2009-12-21 13:57:48 +00:00
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virtual void write(TrackSector ts, const void *bp);
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2009-11-21 01:45:08 +00:00
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2009-12-21 13:57:48 +00:00
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virtual unsigned blocks() = 0;
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virtual bool mapped();
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2009-11-21 01:45:08 +00:00
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virtual bool readOnly() = 0;
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2009-11-22 21:56:32 +00:00
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2009-12-21 13:57:48 +00:00
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virtual void sync() = 0;
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virtual void sync(unsigned block);
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virtual void sync(TrackSector ts);
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2009-11-23 03:19:38 +00:00
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2009-12-21 13:57:48 +00:00
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2009-11-22 21:56:32 +00:00
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void zeroBlock(unsigned block);
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2009-12-11 00:59:53 +00:00
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protected:
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2009-12-14 00:14:59 +00:00
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BlockDevice();
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2009-11-21 01:45:08 +00:00
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2010-03-23 03:02:06 +00:00
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friend BlockCache;
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virtual BlockCache *createBlockCache();
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2009-11-21 01:45:08 +00:00
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};
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}
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#endif
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