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
|
#include "uuid.h"
#include <util/stream/str.h>
namespace NKikimr {
namespace NUuid {
static void WriteHexDigit(ui8 digit, IOutputStream& out) {
if (digit <= 9) {
out << char('0' + digit);
}
else {
out << char('a' + digit - 10);
}
}
static void WriteHex(ui16 bytes, IOutputStream& out, bool reverseBytes = false) {
if (reverseBytes) {
WriteHexDigit((bytes >> 4) & 0x0f, out);
WriteHexDigit(bytes & 0x0f, out);
WriteHexDigit((bytes >> 12) & 0x0f, out);
WriteHexDigit((bytes >> 8) & 0x0f, out);
} else {
WriteHexDigit((bytes >> 12) & 0x0f, out);
WriteHexDigit((bytes >> 8) & 0x0f, out);
WriteHexDigit((bytes >> 4) & 0x0f, out);
WriteHexDigit(bytes & 0x0f, out);
}
}
TString UuidBytesToString(const TString& in) {
TStringStream ss;
UuidBytesToString(in, ss);
return ss.Str();
}
void UuidBytesToString(const TString& in, IOutputStream& out) {
ui16 dw[8];
std::memcpy(dw, in.data(), sizeof(dw));
NUuid::UuidToString(dw, out);
}
void UuidHalfsToString(ui64 low, ui64 hi, IOutputStream& out) {
union {
ui16 dw[8];
ui64 half[2];
} buf;
buf.half[0] = low;
buf.half[1] = hi;
NUuid::UuidToString(buf.dw, out);
}
void UuidToString(ui16 dw[8], IOutputStream& out) {
WriteHex(dw[1], out);
WriteHex(dw[0], out);
out << '-';
WriteHex(dw[2], out);
out << '-';
WriteHex(dw[3], out);
out << '-';
WriteHex(dw[4], out, true);
out << '-';
WriteHex(dw[5], out, true);
WriteHex(dw[6], out, true);
WriteHex(dw[7], out, true);
}
void UuidHalfsToByteString(ui64 low, ui64 hi, IOutputStream& out) {
union {
char bytes[16];
ui64 half[2];
} buf;
buf.half[0] = low;
buf.half[1] = hi;
out.Write(buf.bytes, 16);
}
}
}
|
