1/*
2 * Copyright (c) 1999-2008 Mark D. Hill and David A. Wood
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;

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30#define __MEM_RUBY_COMMON_DATABLOCK_HH__
31
32#include <inttypes.h>
33
34#include <cassert>
35#include <iomanip>
36#include <iostream>
37
38class WriteMask;
39
40class DataBlock
41{
42 public:
43 DataBlock()
44 {
45 alloc();
46 }
47

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55
56 DataBlock& operator=(const DataBlock& obj);
57
58 void assign(uint8_t *data);
59
60 void clear();
61 uint8_t getByte(int whichByte) const;
62 const uint8_t *getData(int offset, int len) const;
63 uint8_t *getDataMod(int offset);
64 void setByte(int whichByte, uint8_t data);
65 void setData(const uint8_t *data, int offset, int len);
66 void copyPartial(const DataBlock &dblk, int offset, int len);
67 void copyPartial(const DataBlock &dblk, const WriteMask &mask);
68 void atomicPartial(const DataBlock & dblk, const WriteMask & mask);
69 bool equal(const DataBlock& obj) const;
70 void print(std::ostream& out) const;
71
72 private:
73 void alloc();
74 uint8_t *m_data;
75 bool m_alloc;
76};

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