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00014 #ifndef ACE_UUID_H
00015 #define ACE_UUID_H
00016 #include "ace/pre.h"
00017
00018 #include "ace/config-all.h"
00019
00020 #if !defined (ACE_LACKS_PRAGMA_ONCE)
00021 # pragma once
00022 #endif
00023
00024 #include "ace/SString.h"
00025 #include "ace/Singleton.h"
00026 #include "ace/Synch_Traits.h"
00027
00028 ACE_BEGIN_VERSIONED_NAMESPACE_DECL
00029
00030 namespace ACE_Utils
00031 {
00032
00033 class ACE_Export UUID_node
00034 {
00035 public:
00036
00037
00038 UUID_node (void);
00039
00040 enum {NODE_ID_SIZE = 6};
00041 typedef u_char NodeID[NODE_ID_SIZE];
00042
00043 NodeID& nodeID (void);
00044 void nodeID (NodeID&);
00045
00046
00047 bool operator == (const UUID_node& right) const;
00048 bool operator != (const UUID_node& right) const;
00049
00050
00051
00052
00053 private:
00054 NodeID nodeID_;
00055 };
00056
00057
00058
00059
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00063
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00067
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00072
00073
00074
00075
00076
00077 class ACE_Export UUID
00078 {
00079 public:
00080
00081
00082 UUID (void);
00083
00084
00085 UUID (const ACE_CString& uuidString);
00086
00087 UUID (const UUID &right);
00088
00089
00090 ~UUID (void);
00091
00092 ACE_UINT32 timeLow (void) const;
00093 void timeLow (ACE_UINT32);
00094
00095 ACE_UINT16 timeMid (void) const;
00096 void timeMid (ACE_UINT16);
00097
00098 ACE_UINT16 timeHiAndVersion (void) const;
00099 void timeHiAndVersion (ACE_UINT16);
00100
00101 u_char clockSeqHiAndReserved (void) const;
00102 void clockSeqHiAndReserved (u_char);
00103
00104 u_char clockSeqLow (void) const;
00105 void clockSeqLow (u_char);
00106
00107 UUID_node* node (void) const;
00108 void node (UUID_node*);
00109
00110 ACE_CString* thr_id (void);
00111 void thr_id (char*);
00112
00113 ACE_CString* pid (void);
00114 void pid (char*);
00115
00116
00117 const ACE_CString* to_string (void);
00118
00119
00120 void from_string (const ACE_CString& uuid_string);
00121
00122 static UUID NIL_UUID;
00123
00124
00125 bool operator== (const UUID &right) const;
00126 bool operator!= (const UUID &right) const;
00127
00128
00129
00130
00131
00132
00133
00134 private:
00135 void from_string_i (const ACE_CString& uuidString);
00136
00137 UUID& operator= (const UUID&);
00138
00139
00140 ACE_UINT32 timeLow_;
00141 ACE_UINT16 timeMid_;
00142 ACE_UINT16 timeHiAndVersion_;
00143 u_char clockSeqHiAndReserved_;
00144 u_char clockSeqLow_;
00145 UUID_node* node_;
00146 bool node_release_;
00147 ACE_CString thr_id_;
00148 ACE_CString pid_;
00149
00150
00151
00152 ACE_CString *as_string_;
00153 };
00154
00155
00156
00157
00158
00159
00160
00161
00162 class ACE_Export UUID_Generator
00163 {
00164 public:
00165
00166 enum {ACE_UUID_CLOCK_SEQ_MASK = 0x3FFF};
00167
00168 UUID_Generator();
00169 ~UUID_Generator();
00170
00171 void init (void);
00172
00173
00174
00175
00176 void generateUUID (UUID&, ACE_UINT16 version=0x0001, u_char variant=0x80);
00177
00178
00179
00180 UUID* generateUUID (ACE_UINT16 version=0x0001, u_char variant=0x80);
00181
00182
00183
00184 typedef ACE_UINT64 UUID_time;
00185
00186
00187
00188 ACE_SYNCH_MUTEX* lock (void);
00189
00190
00191 void lock (ACE_SYNCH_MUTEX* lock,
00192 bool release_lock);
00193
00194 private:
00195
00196
00197 UUID_time timeLast_;
00198
00199
00200
00201 struct UUID_State
00202 {
00203 UUID_time timestamp;
00204 UUID_node node;
00205 ACE_UINT16 clockSequence;
00206 };
00207
00208
00209
00210 void get_timestamp (UUID_time& timestamp);
00211
00212
00213
00214
00215 void get_systemtime( UUID_time& timeNow);
00216
00217
00218 UUID_State uuid_state_;
00219
00220 ACE_SYNCH_MUTEX* lock_;
00221 bool destroy_lock_;
00222 };
00223
00224 typedef ACE_Singleton<UUID_Generator, ACE_SYNCH_MUTEX> UUID_GENERATOR;
00225
00226 }
00227
00228 ACE_END_VERSIONED_NAMESPACE_DECL
00229
00230 #if defined (__ACE_INLINE__)
00231 #include "ace/UUID.inl"
00232 #endif
00233
00234 #include "ace/post.h"
00235 #endif // ACE_UUID_H