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DataBlock.hh
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28 
29 #ifndef __MEM_RUBY_COMMON_DATABLOCK_HH__
30 #define __MEM_RUBY_COMMON_DATABLOCK_HH__
31 
32 #include <inttypes.h>
33 
34 #include <cassert>
35 #include <iomanip>
36 #include <iostream>
37 
38 class WriteMask;
39 
40 class DataBlock
41 {
42  public:
44  {
45  alloc();
46  }
47 
48  DataBlock(const DataBlock &cp);
49 
51  {
52  if (m_alloc)
53  delete [] m_data;
54  }
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 };
77 
78 inline void
80 {
81  assert(data != NULL);
82  if (m_alloc) {
83  delete [] m_data;
84  }
85  m_data = data;
86  m_alloc = false;
87 }
88 
89 inline uint8_t
90 DataBlock::getByte(int whichByte) const
91 {
92  return m_data[whichByte];
93 }
94 
95 inline void
96 DataBlock::setByte(int whichByte, uint8_t data)
97 {
98  m_data[whichByte] = data;
99 }
100 
101 inline void
103 {
104  setData(&dblk.m_data[offset], offset, len);
105 }
106 
107 inline std::ostream&
108 operator<<(std::ostream& out, const DataBlock& obj)
109 {
110  obj.print(out);
111  out << std::flush;
112  return out;
113 }
114 
115 inline bool
116 operator==(const DataBlock& obj1,const DataBlock& obj2)
117 {
118  return obj1.equal(obj2);
119 }
120 
121 #endif // __MEM_RUBY_COMMON_DATABLOCK_HH__
void copyPartial(const DataBlock &dblk, int offset, int len)
Definition: DataBlock.hh:102
void alloc()
Definition: DataBlock.cc:42
bool operator==(const DataBlock &obj1, const DataBlock &obj2)
Definition: DataBlock.hh:116
Bitfield< 23, 0 > offset
Definition: types.hh:149
uint8_t getByte(int whichByte) const
Definition: DataBlock.hh:90
void setByte(int whichByte, uint8_t data)
Definition: DataBlock.hh:96
bool equal(const DataBlock &obj) const
Definition: DataBlock.cc:56
const char data[]
Definition: circlebuf.cc:43
void print(std::ostream &out) const
Definition: DataBlock.cc:81
DataBlock & operator=(const DataBlock &obj)
Definition: DataBlock.cc:115
void assign(uint8_t *data)
Definition: DataBlock.hh:79
bool m_alloc
Definition: DataBlock.hh:75
const uint8_t * getData(int offset, int len) const
Definition: DataBlock.cc:95
void clear()
Definition: DataBlock.cc:50
Bitfield< 18, 16 > len
Definition: miscregs.hh:1626
void atomicPartial(const DataBlock &dblk, const WriteMask &mask)
Definition: DataBlock.cc:72
void setData(const uint8_t *data, int offset, int len)
Definition: DataBlock.cc:108
Bitfield< 3, 0 > mask
Definition: types.hh:64
~DataBlock()
Definition: DataBlock.hh:50
std::ostream & operator<<(std::ostream &out, const DataBlock &obj)
Definition: DataBlock.hh:108
uint8_t * m_data
Definition: DataBlock.hh:74
uint8_t * getDataMod(int offset)
Definition: DataBlock.cc:102

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