MySQL 8.0.39
Source Code Documentation
gtid.h
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23
24#ifndef BINARY_LOG_GTIDS_GTID_INCLUDED
25#define BINARY_LOG_GTIDS_GTID_INCLUDED
26
27#include <set>
28#include <sstream>
29
31
32namespace binary_log::gtids {
33
34/**
35 * @brief Represents a MySQL Global Transaction Identifier.
36 *
37 * This class abstracts the representation of a Global Transaction Identifier.
38 *
39 * It contains two fields, a UUID and a sequence number.
40 */
41class Gtid {
42 public:
43 /// In 'UUID:SEQNO', this is the ':'
44 static const inline std::string SEPARATOR_UUID_SEQNO{":"};
45
46 protected:
49
50 public:
51 /**
52 * @brief Construct a new Gtid object
53 *
54 * @param uuid the uuid part of the transaction identifier.
55 * @param gno The gno part of the transaction identfier.
56 */
57 Gtid(const Uuid &uuid, gno_t gno);
58
59 /**
60 * @brief Destroy the Gtid object
61 *
62 */
63 virtual ~Gtid();
64
65 /**
66 * @brief Get the sequence number of this transaction identifier.
67 *
68 * @return The sequence number part of this transaction identifier.
69 */
70 virtual gno_t get_gno() const;
71
72 /**
73 * @brief Get the uuid of this transaction identifier.
74 *
75 * @return The uuid part of this transaction identifier.
76 */
77 virtual const Uuid &get_uuid() const;
78
79 /**
80 * @brief Gets a human readable representation of this transaction identifier.
81 *
82 * @return A human readable representation of this transaction identifier.
83 */
84 virtual std::string to_string() const;
85
86 /**
87 * @brief Compares two identifiers and returns whether they match or not.
88 *
89 * @param other The other transaction identifier to compare to this one.
90 * @return true if the identifiers are equal.
91 * @return false otherwise.
92 */
93 virtual bool operator==(const Gtid &other) const;
94
95 /**
96 * @brief Compares two identifiers and returns whether they are different.
97 *
98 * @param other The other transaction identifier to compare to this one.
99 * @return true if the identifiers are different.
100 * @return false otherwise.
101 */
102 virtual bool operator!=(const Gtid &other) const;
103
104 /**
105 * @brief Copy assignment.
106 *
107 * Note that this operator will do a deep copy of the other identifier.
108 *
109 * @param other Copies the uuid and gno of the other identifier.
110 * @return a copy of the other identifier.
111 */
112 virtual Gtid &operator=(const Gtid &other);
113
114 /**
115 * @brief Construct a new Gtid object from another one, by deep copying its
116 * contents.
117 *
118 * @param other the other gtid to construct this gtid from.
119 */
120 Gtid(const Gtid &other);
121};
122
123} // namespace binary_log::gtids
124
125#endif
Represents a MySQL Global Transaction Identifier.
Definition: gtid.h:41
virtual ~Gtid()
Destroy the Gtid object.
virtual std::string to_string() const
Gets a human readable representation of this transaction identifier.
Definition: gtid.cpp:37
virtual bool operator==(const Gtid &other) const
Compares two identifiers and returns whether they match or not.
Definition: gtid.cpp:52
Gtid(const Uuid &uuid, gno_t gno)
Construct a new Gtid object.
Definition: gtid.cpp:30
Uuid m_uuid
Definition: gtid.h:47
virtual Gtid & operator=(const Gtid &other)
Copy assignment.
Definition: gtid.cpp:43
virtual gno_t get_gno() const
Get the sequence number of this transaction identifier.
Definition: gtid.cpp:34
gno_t m_gno
Definition: gtid.h:48
virtual const Uuid & get_uuid() const
Get the uuid of this transaction identifier.
Definition: gtid.cpp:35
virtual bool operator!=(const Gtid &other) const
Compares two identifiers and returns whether they are different.
Definition: gtid.cpp:56
static const std::string SEPARATOR_UUID_SEQNO
In 'UUID:SEQNO', this is the ':'.
Definition: gtid.h:44
Definition: global.h:32
std::int64_t gno_t
Definition: global.h:34
This is a POD.
Definition: uuid.h:61