blob: 52656f6711364c35ae9e146ec602dca4101cdf50 (
plain)
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
|
// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
//
// File: MscorpeSxSWrapper.h
//
//
// This file defines a wrapper for SxS version of mscorpe.dll (dynamically loaded via shim).
//
#pragma once
#include "utilcode.h"
#include "iceefilegen.h"
//
// Wrapper for calls into mscorpehost.dll (SxS version of mscorpe.dll).
// Template parameter will load the DLL as it is required in the context.
//
// Note that _LoadMscorpeDll method can be called more than once and in parallel from more threads if race
// happens.
//
template <HRESULT (* _LoadMscorpeDll)(HMODULE * phModule)>
class MscorpeSxSWrapper
{
private:
// mscorpehost.dll module, if not NULL, entry points are already initialized
static Volatile<HMODULE> s_hModule;
// mscorpehost.dll entry points
static Volatile<PFN_CreateICeeFileGen> s_pfnCreateICeeFileGen;
static Volatile<PFN_DestroyICeeFileGen> s_pfnDestroyICeeFileGen;
// Loads the DLL and sets all statics
static HRESULT Init();
public:
// Wrapper of file:ICeeFileGen.cpp#CreateICeeFileGen from mscorpehost.dll
static HRESULT CreateICeeFileGen(ICeeFileGen ** ppCeeFileGen)
{
HRESULT hr = S_OK;
IfFailGo(Init());
hr = s_pfnCreateICeeFileGen(ppCeeFileGen);
ErrExit:
return hr;
}
// Wrapper of file:ICeeFileGen.cpp#DestroyICeeFileGen from mscorpehost.dll
static HRESULT DestroyICeeFileGen(ICeeFileGen ** ppCeeFileGen)
{
HRESULT hr = S_OK;
IfFailGo(Init());
hr = s_pfnDestroyICeeFileGen(ppCeeFileGen);
ErrExit:
return hr;
}
#ifdef _DEBUG
// Returns TRUE if the DLL has been already loaded
static BOOL Debug_IsLoaded()
{
return (s_hModule != (HMODULE)NULL);
}
#endif //_DEBUG
}; // class MscorpeSxS
template <HRESULT (* _LoadMscorpeDll)(HMODULE * phModule)>
// code:MscorpeSxS statics initialization
Volatile<HMODULE> MscorpeSxSWrapper<_LoadMscorpeDll>::s_hModule = NULL;
template <HRESULT (* _LoadMscorpeDll)(HMODULE * phModule)>
Volatile<PFN_CreateICeeFileGen> MscorpeSxSWrapper<_LoadMscorpeDll>::s_pfnCreateICeeFileGen = NULL;
template <HRESULT (* _LoadMscorpeDll)(HMODULE * phModule)>
Volatile<PFN_DestroyICeeFileGen> MscorpeSxSWrapper<_LoadMscorpeDll>::s_pfnDestroyICeeFileGen = NULL;
// Loads the DLL and sets all statics
//static
template <HRESULT (* _LoadMscorpeDll)(HMODULE * phModule)>
HRESULT
MscorpeSxSWrapper<_LoadMscorpeDll>::Init()
{
HRESULT hr = S_OK;
if (s_hModule != (HMODULE)NULL)
{
return S_OK;
}
// Local mscorpehost.dll module
HMODULE hModule = NULL;
// Local mscorpehost.dll entry points
PFN_CreateICeeFileGen pfnCreateICeeFileGen = NULL;
PFN_DestroyICeeFileGen pfnDestroyICeeFileGen = NULL;
// Load mscorpehost.dll and initialize it
IfFailGo(_LoadMscorpeDll(&hModule));
_ASSERTE(hModule != NULL);
pfnCreateICeeFileGen = (PFN_CreateICeeFileGen)GetProcAddress(hModule, "CreateICeeFileGen");
if (pfnCreateICeeFileGen == NULL)
{
IfFailGo(COR_E_EXECUTIONENGINE);
}
pfnDestroyICeeFileGen = (PFN_DestroyICeeFileGen)GetProcAddress(hModule, "DestroyICeeFileGen");
if (pfnDestroyICeeFileGen == NULL)
{
IfFailGo(COR_E_EXECUTIONENGINE);
}
ErrExit:
if (SUCCEEDED(hr))
{
// First publish mscorpehost.dll entry points
s_pfnCreateICeeFileGen = pfnCreateICeeFileGen;
s_pfnDestroyICeeFileGen = pfnDestroyICeeFileGen;
// Then we can publish/initialize the mscorpehost.dll module
s_hModule = hModule;
}
return hr;
} // MscorpeSxSWrapper::Init
|
