blob: e3dda5b9e146c9007b74df3d08851c5722f5d3f7 (
plain) (
blame)
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
|
#include "./common.h"
#include "./providerEnumerator.h"
#include "./loginProvider.h"
LoginProviderEnumerator::LoginProviderEnumerator()
: ref(1), cursor(0), list(NULL), size(0)
{
}
LoginProviderEnumerator::~LoginProviderEnumerator()
{
if (NULL != list)
{
size_t index = size;
while(index--)
{
LoginProvider *provider = list[index];
if (NULL != provider) provider->Release();
}
free(list);
}
}
ULONG LoginProviderEnumerator::AddRef()
{
return InterlockedIncrement((LONG*)&ref);
}
ULONG LoginProviderEnumerator::Release()
{
if (0 == ref)
return ref;
LONG r = InterlockedDecrement((LONG*)&ref);
if (0 == r)
delete(this);
return r;
}
HRESULT LoginProviderEnumerator::CreateInstance(LoginProvider **list, size_t size, LoginProviderEnumerator **instance)
{
if (NULL == instance) return E_POINTER;
if (NULL == list) return E_INVALIDARG;
LoginProviderEnumerator *enumerator = new LoginProviderEnumerator();
if(NULL == enumerator)
return E_OUTOFMEMORY;
if (0 != size)
{
enumerator->list = (LoginProvider**)calloc(size, sizeof(LoginProvider*));
if (NULL == enumerator->list)
{
enumerator->Release();
return E_OUTOFMEMORY;
}
enumerator->size = size;
CopyMemory(enumerator->list, list, size * sizeof(LoginProvider*));
}
*instance = enumerator;
return S_OK;
}
HRESULT LoginProviderEnumerator::Next(ULONG listSize, LoginProvider **elementList, ULONG *elementCount)
{
if (NULL == elementList || 0 == listSize) return E_INVALIDARG;
if (cursor >= size)
{
if (NULL != elementCount) *elementCount = 0;
return S_FALSE;
}
ULONG count = 0;
for (;cursor < size && count < listSize; cursor++)
{
LoginProvider *provider = list[cursor];
if (NULL != provider)
{
provider->AddRef();
elementList[count] = provider;
count++;
}
}
if (NULL != elementCount) *elementCount = count;
return (count == listSize) ? S_OK : S_FALSE;
}
HRESULT LoginProviderEnumerator::Reset(void)
{
cursor = 0;
return S_OK;
}
HRESULT LoginProviderEnumerator::Skip(ULONG elementCount)
{
cursor += elementCount;
if (cursor >= size)
{
cursor = (size - 1);
return S_FALSE;
}
return S_OK;
}
|
