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UUID.h
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28 
36 #ifndef _ARGUS_UUID_H
37 #define _ARGUS_UUID_H
38 
39 #include <stdint.h>
40 #include <cstring>
41 
42 namespace Argus
43 {
44 
45 const uint32_t MAX_UUID_NAME_SIZE = 32;
46 
50 struct UUID
51 {
52  uint32_t time_low;
53  uint16_t time_mid;
55  uint16_t clock_seq;
56  uint8_t node[6];
57 
58  bool operator==(const UUID &r) const
59  {
60  return memcmp(this, &r, sizeof(UUID)) == 0;
61  }
62 
63  bool operator<(const UUID &r) const
64  {
65  return memcmp(this, &r, sizeof(UUID)) < 0;
66  }
67 };
68 
72 class NamedUUID : public UUID
73 {
74 public:
75  NamedUUID(uint32_t time_low_
76  , uint16_t time_mid_
77  , uint16_t time_hi_and_version_
78  , uint16_t clock_seq_
79  , uint8_t c0, uint8_t c1, uint8_t c2, uint8_t c3, uint8_t c4, uint8_t c5
80  , const char* name)
81  {
82  time_low = time_low_;
83  time_mid = time_mid_;
84  time_hi_and_version = time_hi_and_version_;
85  clock_seq = clock_seq_;
86  node[0] = c0; node[1] = c1; node[2] = c2; node[3] = c3; node[4] = c4; node[5] = c5;
87  strncpy(m_name, name, sizeof(m_name)-1);
88  m_name[sizeof(m_name)-1] = '\0';
89  }
90 
91  NamedUUID(const NamedUUID& copied)
92  : UUID(copied)
93  {
94  strncpy(m_name, copied.m_name, sizeof(m_name)-1);
95  m_name[sizeof(m_name)-1] = '\0';
96  }
97 
98  NamedUUID& operator=(const NamedUUID& copied)
99  {
100  static_cast<UUID&>(*this) = copied;
101 
102  return *this;
103  }
104 
105  bool operator==(const NamedUUID& compared) const
106  {
107  return static_cast<const UUID&>(*this) == compared;
108  }
109 
110  bool operator!=(const NamedUUID& compared) const
111  {
112  return !(static_cast<const UUID&>(*this) == compared);
113  }
114 
115  const char* getName() const { return m_name; }
116 
117 private:
118  char m_name[MAX_UUID_NAME_SIZE];
119 
120  NamedUUID();
121 };
122 
124 #define DEFINE_UUID(TYPE, NAME, l, s0, s1, s2, c0,c1,c2,c3,c4,c5) \
125  static const TYPE NAME(0x##l, 0x##s0, 0x##s1, 0x##s2, \
126  0x##c0, 0x##c1, 0x##c2, 0x##c3, 0x##c4, 0x##c5, #NAME);
127 
128 #define DEFINE_NAMED_UUID_CLASS(NAME) \
129  class NAME : public NamedUUID \
130  { \
131  public: \
132  NAME(uint32_t time_low_ \
133  , uint16_t time_mid_ \
134  , uint16_t time_hi_and_version_ \
135  , uint16_t clock_seq_ \
136  , uint8_t c0, uint8_t c1, uint8_t c2, uint8_t c3, uint8_t c4, uint8_t c5 \
137  , const char* name) \
138  : NamedUUID(time_low_, time_mid_, time_hi_and_version_, clock_seq_, \
139  c0, c1, c2, c3, c4, c5, name) \
140  {} \
141  private: \
142  NAME();\
143  };
144 
145 } // namespace Argus
146 
147 #endif // _ARGUS_UUID_H
bool operator<(const UUID &r) const
Definition: UUID.h:63
NamedUUID(const NamedUUID &copied)
Definition: UUID.h:91
uint16_t clock_seq
Definition: UUID.h:55
bool operator==(const UUID &r) const
Definition: UUID.h:58
uint16_t time_hi_and_version
Definition: UUID.h:54
uint32_t time_low
Definition: UUID.h:52
A universally unique identifier.
Definition: UUID.h:50
bool operator==(const NamedUUID &compared) const
Definition: UUID.h:105
NamedUUID(uint32_t time_low_, uint16_t time_mid_, uint16_t time_hi_and_version_, uint16_t clock_seq_, uint8_t c0, uint8_t c1, uint8_t c2, uint8_t c3, uint8_t c4, uint8_t c5, const char *name)
Definition: UUID.h:75
uint8_t node[6]
Definition: UUID.h:56
const char * getName() const
Definition: UUID.h:115
const uint32_t MAX_UUID_NAME_SIZE
Definition: UUID.h:45
A universally unique identifier with a name (used for debugging purposes).
Definition: UUID.h:72
bool operator!=(const NamedUUID &compared) const
Definition: UUID.h:110
NamedUUID & operator=(const NamedUUID &copied)
Definition: UUID.h:98
uint16_t time_mid
Definition: UUID.h:53