1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
|
#ifndef MYGRATE_MYSQL_TYPES_H
#define MYGRATE_MYSQL_TYPES_H
#include "bitset.h"
#include <cstddef>
#include <cstdint>
#include <ctime>
#include <mysql.h>
#include <span>
#include <string_view>
#include <variant>
struct timespec;
namespace MyGrate {
class RawDataReader;
namespace MySQL {
struct Date {
uint16_t year;
uint8_t month;
uint8_t day;
};
struct Time {
uint8_t hour;
uint8_t minute;
uint8_t second;
};
struct DateTime : public Date, public Time {
};
using Blob = std::span<const std::byte>;
template<enum_field_types, bool /*unsigned*/ = false> struct Type;
#define DEFINE_BASE_TYPE(ET, CT, MDS, SIGN) \
template<> struct Type<ET, SIGN> { \
using C = CT; \
constexpr static size_t md_bytes {MDS}; \
static C read(RawDataReader & md, RawDataReader & data); \
}
#define DEFINE_TYPE(ET, CT, MDS) DEFINE_BASE_TYPE(ET, CT, MDS, false)
#define DEFINE_ITYPE(ET, BCT, MDS) \
DEFINE_BASE_TYPE(ET, BCT, MDS, false); \
DEFINE_BASE_TYPE(ET, u##BCT, MDS, true)
DEFINE_TYPE(MYSQL_TYPE_DECIMAL, double, 2);
DEFINE_ITYPE(MYSQL_TYPE_TINY, int8_t, 0);
DEFINE_ITYPE(MYSQL_TYPE_SHORT, int16_t, 0);
DEFINE_ITYPE(MYSQL_TYPE_LONG, int32_t, 0);
DEFINE_TYPE(MYSQL_TYPE_FLOAT, float, 1);
DEFINE_TYPE(MYSQL_TYPE_DOUBLE, double, 1);
DEFINE_TYPE(MYSQL_TYPE_NULL, std::nullptr_t, 0);
DEFINE_TYPE(MYSQL_TYPE_TIMESTAMP, timespec, 0);
DEFINE_TYPE(MYSQL_TYPE_TIMESTAMP2, timespec, 1);
DEFINE_ITYPE(MYSQL_TYPE_LONGLONG, int64_t, 0);
DEFINE_ITYPE(MYSQL_TYPE_INT24, int32_t, 0);
DEFINE_TYPE(MYSQL_TYPE_DATE, Date, 0);
DEFINE_TYPE(MYSQL_TYPE_TIME, Time, 0);
DEFINE_TYPE(MYSQL_TYPE_TIME2, Time, 0);
DEFINE_TYPE(MYSQL_TYPE_DATETIME, DateTime, 0);
DEFINE_TYPE(MYSQL_TYPE_DATETIME2, DateTime, 1);
DEFINE_TYPE(MYSQL_TYPE_YEAR, int16_t, 0);
DEFINE_TYPE(MYSQL_TYPE_NEWDATE, Date, 0);
DEFINE_TYPE(MYSQL_TYPE_VARCHAR, std::string_view, 2);
DEFINE_TYPE(MYSQL_TYPE_BIT, BitSet, 2);
DEFINE_TYPE(MYSQL_TYPE_NEWDECIMAL, double, 2);
DEFINE_TYPE(MYSQL_TYPE_ENUM, std::string_view, 0);
DEFINE_TYPE(MYSQL_TYPE_SET, std::string_view, 0);
DEFINE_TYPE(MYSQL_TYPE_TINY_BLOB, Blob, 0);
DEFINE_TYPE(MYSQL_TYPE_MEDIUM_BLOB, Blob, 0);
DEFINE_TYPE(MYSQL_TYPE_LONG_BLOB, Blob, 0);
DEFINE_TYPE(MYSQL_TYPE_BLOB, std::string_view, 1);
DEFINE_TYPE(MYSQL_TYPE_VAR_STRING, std::string_view, 2);
DEFINE_TYPE(MYSQL_TYPE_STRING, std::string_view, 2);
DEFINE_TYPE(MYSQL_TYPE_JSON, std::string_view, 2);
DEFINE_TYPE(MYSQL_TYPE_GEOMETRY, Blob, 1);
#undef DEFINE_ITYPE
#undef DEFINE_USTYPE
#undef DEFINE_TYPE
using FieldValue = std::variant<std::nullptr_t, double, float, int8_t, uint8_t, int16_t, uint16_t, int32_t,
uint32_t, int64_t, uint64_t, timespec, Date, Time, DateTime, std::string_view, BitSet, Blob>;
}
}
#endif
|
