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haiku-beta6/src/system/kernel/cache/BlockMap.h
T
Axel Dörfler 2d690920ac Renamed system/core to system/kernel.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@12360 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-04-13 13:22:10 +00:00

36 lines
701 B
C++

/*
* Copyright 2004-2005, Axel Dörfler, [email protected]. All rights reserved.
* Distributed under the terms of the MIT License.
*/
#ifndef BLOCK_MAP_H
#define BLOCK_MAP_H
#include <OS.h>
#include <util/khash.h>
class BlockMap {
public:
BlockMap(off_t size);
~BlockMap();
status_t InitCheck() const;
void SetSize(off_t size);
off_t Size() const { return fSize; }
status_t Remove(off_t offset, off_t count = 1);
status_t Set(off_t offset, addr_t address);
status_t Get(off_t offset, addr_t &address);
private:
struct block_entry;
status_t GetBlockEntry(off_t offset, block_entry **_entry);
hash_table *fHashTable;
off_t fSize;
};
#endif /* BLOCK_MAP_H */