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
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
|
/* ---------------------------------------------------------------------------
Nullsoft Database Engine
--------------------
codename: Near Death Experience
--------------------------------------------------------------------------- */
/* ---------------------------------------------------------------------------
Int128Field Class
Field data layout:
[16 bytes] value
--------------------------------------------------------------------------- */
#include "nde.h"
#include "Int128Field.h"
#include <time.h>
//---------------------------------------------------------------------------
Int128Field::Int128Field(void *data)
{
InitField();
Type = FIELD_INT128;
memcpy(Value, data, 16);
}
//---------------------------------------------------------------------------
void Int128Field::InitField(void)
{
Type = FIELD_INT128;
memset(Value, 0, 16);
}
//---------------------------------------------------------------------------
Int128Field::Int128Field()
{
InitField();
}
//---------------------------------------------------------------------------
Int128Field::~Int128Field()
{
}
//---------------------------------------------------------------------------
void Int128Field::ReadTypedData(const uint8_t *data, size_t len)
{
if (len < 16) return;
memcpy(Value, data, 16);
}
//---------------------------------------------------------------------------
void Int128Field::WriteTypedData(uint8_t *data, size_t len)
{
if (len < 16) return;
memcpy(data, Value, 16);
}
//---------------------------------------------------------------------------
void *Int128Field::GetValue(void)
{
return Value;
}
//---------------------------------------------------------------------------
void Int128Field::SetValue(const void *Val)
{
memcpy(Value, Val, 16);
}
//---------------------------------------------------------------------------
size_t Int128Field::GetDataSize(void)
{
return 16;
}
//---------------------------------------------------------------------------
int Int128Field::Compare(Field *Entry)
{
if (!Entry) return -1;
return memcmp(Value, ((Int128Field*)Entry)->GetValue(), 16);
}
static char zerobuf[16]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
//---------------------------------------------------------------------------
bool Int128Field::ApplyFilter(Field *Data, int op)
{
void *p = ((Int128Field *)Data)->GetValue();
void *d = Value;
if (!p)
p = zerobuf;
if (!d)
d = zerobuf;
bool r;
switch (op)
{
case FILTER_EQUALS:
r = !memcmp(d, p, 16);
break;
case FILTER_CONTAINS:
r = !memcmp(d, p, 16);
break;
case FILTER_ABOVE:
r = (memcmp(d, p, 16) > 0);
break;
case FILTER_BELOW:
r = (memcmp(d, p, 16) < 0);
break;
case FILTER_BELOWOREQUAL:
r = (memcmp(d, p, 16) <= 0);
break;
case FILTER_ABOVEOREQUAL:
r = (memcmp(d, p, 16) >= 0);
break;
case FILTER_ISEMPTY:
r = !d || (!memcmp(d, zerobuf, 16));
break;
case FILTER_ISNOTEMPTY:
r = d && (memcmp(d, zerobuf, 16));
break;
default:
r = true;
break;
}
return r;
}
|
