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ClearScript/ClearScript/Util/NativeMethods.cs at master · iguanaware/ClearScript · GitHub
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// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT license.
using
System
;
using
System
.
ComponentModel
;
using
System
.
Runtime
.
InteropServices
;
namespace
Microsoft
.
ClearScript
.
Util
{
internal
static
class
NativeMethods
{
public
static
IntPtr
LoadLibrary
(
string
path
)
{
if
(
MiscHelpers
.
PlatformIsWindows
(
)
)
{
return
NativeWindowsMethods
.
LoadLibraryW
(
path
)
;
}
if
(
MiscHelpers
.
PlatformIsLinux
(
)
)
{
return
NativeLinuxMethods
.
LoadLibrary
(
path
)
;
}
if
(
MiscHelpers
.
PlatformIsOSX
(
)
)
{
return
NativeOSXMethods
.
LoadLibrary
(
path
)
;
}
throw
new
PlatformNotSupportedException
(
)
;
}
public
static
bool
FreeLibrary
(
IntPtr
hLibrary
)
{
if
(
MiscHelpers
.
PlatformIsWindows
(
)
)
{
return
NativeWindowsMethods
.
FreeLibrary
(
hLibrary
)
;
}
if
(
MiscHelpers
.
PlatformIsLinux
(
)
)
{
return
NativeLinuxMethods
.
FreeLibrary
(
hLibrary
)
==
0
;
}
if
(
MiscHelpers
.
PlatformIsOSX
(
)
)
{
return
NativeOSXMethods
.
FreeLibrary
(
hLibrary
)
==
0
;
}
throw
new
PlatformNotSupportedException
(
)
;
}
public
static
string
GetLoadLibraryErrorMessage
(
)
{
if
(
MiscHelpers
.
PlatformIsWindows
(
)
)
{
return
new
Win32Exception
(
)
.
Message
;
}
if
(
MiscHelpers
.
PlatformIsLinux
(
)
)
{
return
Marshal
.
PtrToStringAnsi
(
NativeLinuxMethods
.
GetLoadLibraryErrorMessage
(
)
)
;
}
if
(
MiscHelpers
.
PlatformIsOSX
(
)
)
{
return
Marshal
.
PtrToStringAnsi
(
NativeOSXMethods
.
GetLoadLibraryErrorMessage
(
)
)
;
}
throw
new
PlatformNotSupportedException
(
)
;
}
public
static
uint
CLSIDFromProgID
(
string
progID
,
out
Guid
clsid
)
{
if
(
MiscHelpers
.
PlatformIsWindows
(
)
)
{
return
NativeWindowsMethods
.
CLSIDFromProgID
(
progID
,
out
clsid
)
;
}
throw
new
PlatformNotSupportedException
(
)
;
}
public
static
uint
ProgIDFromCLSID
(
ref
Guid
clsid
,
out
string
progID
)
{
if
(
MiscHelpers
.
PlatformIsWindows
(
)
)
{
return
NativeWindowsMethods
.
ProgIDFromCLSID
(
ref
clsid
,
out
progID
)
;
}
throw
new
PlatformNotSupportedException
(
)
;
}
public
static
uint
CoCreateInstance
(
ref
Guid
clsid
,
IntPtr
pOuter
,
uint
clsContext
,
ref
Guid
iid
,
out
IntPtr
pInterface
)
{
if
(
MiscHelpers
.
PlatformIsWindows
(
)
)
{
return
NativeWindowsMethods
.
CoCreateInstance
(
ref
clsid
,
pOuter
,
clsContext
,
ref
iid
,
out
pInterface
)
;
}
throw
new
PlatformNotSupportedException
(
)
;
}
public
static
void
VariantInit
(
IntPtr
pVariant
)
{
if
(
MiscHelpers
.
PlatformIsWindows
(
)
)
{
NativeWindowsMethods
.
VariantInit
(
pVariant
)
;
}
else
{
throw
new
PlatformNotSupportedException
(
)
;
}
}
public
static
uint
VariantClear
(
IntPtr
pVariant
)
{
if
(
MiscHelpers
.
PlatformIsWindows
(
)
)
{
return
NativeWindowsMethods
.
VariantClear
(
pVariant
)
;
}
throw
new
PlatformNotSupportedException
(
)
;
}
public
static
IntPtr
HeapCreate
(
uint
options
,
UIntPtr
initialSize
,
UIntPtr
maximumSize
)
{
if
(
MiscHelpers
.
PlatformIsWindows
(
)
)
{
return
NativeWindowsMethods
.
HeapCreate
(
options
,
initialSize
,
maximumSize
)
;
}
throw
new
PlatformNotSupportedException
(
)
;
}
public
static
IntPtr
HeapAlloc
(
IntPtr
hHeap
,
uint
flags
,
UIntPtr
size
)
{
if
(
MiscHelpers
.
PlatformIsWindows
(
)
)
{
return
NativeWindowsMethods
.
HeapAlloc
(
hHeap
,
flags
,
size
)
;
}
throw
new
PlatformNotSupportedException
(
)
;
}
public
static
bool
HeapFree
(
IntPtr
hHeap
,
uint
flags
,
IntPtr
pBlock
)
{
if
(
MiscHelpers
.
PlatformIsWindows
(
)
)
{
return
NativeWindowsMethods
.
HeapFree
(
hHeap
,
flags
,
pBlock
)
;
}
throw
new
PlatformNotSupportedException
(
)
;
}
public
static
bool
HeapDestroy
(
IntPtr
hHeap
)
{
if
(
MiscHelpers
.
PlatformIsWindows
(
)
)
{
return
NativeWindowsMethods
.
HeapDestroy
(
hHeap
)
;
}
throw
new
PlatformNotSupportedException
(
)
;
}
public
static
bool
VirtualProtect
(
IntPtr
pBlock
,
UIntPtr
size
,
uint
newProtect
,
out
uint
oldProtect
)
{
if
(
MiscHelpers
.
PlatformIsWindows
(
)
)
{
return
NativeWindowsMethods
.
VirtualProtect
(
pBlock
,
size
,
newProtect
,
out
oldProtect
)
;
}
throw
new
PlatformNotSupportedException
(
)
;
}
#region Nested type: NativeWindowsMethods
private
static
class
NativeWindowsMethods
{
// ReSharper disable MemberHidesStaticFromOuterClass
[
DllImport
(
"kernel32.dll"
,
ExactSpelling
=
true
,
SetLastError
=
true
)
]
public
static
extern
IntPtr
LoadLibraryW
(
[
In
]
[
MarshalAs
(
UnmanagedType
.
LPWStr
)
]
string
path
)
;
[
DllImport
(
"kernel32.dll"
,
SetLastError
=
true
)
]
[
return
:
MarshalAs
(
UnmanagedType
.
Bool
)
]
public
static
extern
bool
FreeLibrary
(
[
In
]
IntPtr
hLibrary
)
;
[
DllImport
(
"ole32.dll"
,
ExactSpelling
=
true
)
]
public
static
extern
uint
CLSIDFromProgID
(
[
In
]
[
MarshalAs
(
UnmanagedType
.
LPWStr
)
]
string
progID
,
[
Out
]
out
Guid
clsid
)
;
[
DllImport
(
"ole32.dll"
)
]
public
static
extern
uint
ProgIDFromCLSID
(
[
In
]
ref
Guid
clsid
,
[
Out
]
[
MarshalAs
(
UnmanagedType
.
LPWStr
)
]
out
string
progID
)
;
[
DllImport
(
"ole32.dll"
,
ExactSpelling
=
true
)
]
public
static
extern
uint
CoCreateInstance
(
[
In
]
ref
Guid
clsid
,
[
In
]
IntPtr
pOuter
,
[
In
]
uint
clsContext
,
[
In
]
ref
Guid
iid
,
[
Out
]
out
IntPtr
pInterface
)
;
[
DllImport
(
"oleaut32.dll"
,
ExactSpelling
=
true
)
]
public
static
extern
void
VariantInit
(
[
In
]
IntPtr
pVariant
)
;
[
DllImport
(
"oleaut32.dll"
,
ExactSpelling
=
true
)
]
public
static
extern
uint
VariantClear
(
[
In
]
IntPtr
pVariant
)
;
[
DllImport
(
"kernel32.dll"
,
SetLastError
=
true
)
]
public
static
extern
IntPtr
HeapCreate
(
[
In
]
uint
options
,
[
In
]
UIntPtr
initialSize
,
[
In
]
UIntPtr
maximumSize
)
;
[
DllImport
(
"kernel32.dll"
,
SetLastError
=
false
)
]
public
static
extern
IntPtr
HeapAlloc
(
[
In
]
IntPtr
hHeap
,
[
In
]
uint
flags
,
[
In
]
UIntPtr
size
)
;
[
DllImport
(
"kernel32.dll"
,
SetLastError
=
true
)
]
public
static
extern
bool
HeapFree
(
[
In
]
IntPtr
hHeap
,
[
In
]
uint
flags
,
[
In
]
IntPtr
pBlock
)
;
[
DllImport
(
"kernel32.dll"
,
SetLastError
=
true
)
]
public
static
extern
bool
HeapDestroy
(
[
In
]
IntPtr
hHeap
)
;
[
DllImport
(
"kernel32.dll"
,
SetLastError
=
true
)
]
public
static
extern
bool
VirtualProtect
(
[
In
]
IntPtr
pBlock
,
[
In
]
UIntPtr
size
,
[
In
]
uint
newProtect
,
[
Out
]
out
uint
oldProtect
)
;
// ReSharper restore MemberHidesStaticFromOuterClass
}
#endregion
#region Nested type: NativeLinuxMethods
private
static
class
NativeLinuxMethods
{
// ReSharper disable MemberHidesStaticFromOuterClass
[
Flags
]
public
enum
LoadLibraryFlags
{
// ReSharper disable UnusedMember.Local
None
=
0
,
Lazy
=
0x0001
,
Now
=
0x0002
,
BindingMask
=
0x0003
,
NoLoad
=
0x0004
,
DeepBind
=
0x0008
,
Local
=
None
,
Global
=
0x0100
,
NoDelete
=
0x1000
// ReSharper restore UnusedMember.Local
}
[
DllImport
(
"libdl.so"
,
EntryPoint
=
"dlopen"
)
]
public
static
extern
IntPtr
LoadLibrary
(
[
In
]
[
MarshalAs
(
UnmanagedType
.
LPStr
)
]
string
path
,
[
In
]
LoadLibraryFlags
flags
=
LoadLibraryFlags
.
Now
|
LoadLibraryFlags
.
Global
)
;
[
DllImport
(
"libdl.so"
,
EntryPoint
=
"dlclose"
)
]
public
static
extern
int
FreeLibrary
(
[
In
]
IntPtr
hLibrary
)
;
[
DllImport
(
"libdl.so"
,
EntryPoint
=
"dlerror"
)
]
public
static
extern
IntPtr
GetLoadLibraryErrorMessage
(
)
;
// ReSharper restore MemberHidesStaticFromOuterClass
}
#endregion
#region Nested type: NativeOSXMethods
private
static
class
NativeOSXMethods
{
// ReSharper disable MemberHidesStaticFromOuterClass
[
Flags
]
public
enum
LoadLibraryFlags
{
// ReSharper disable UnusedMember.Local
None
=
0
,
Lazy
=
0x01
,
Now
=
0x02
,
Local
=
0x04
,
Global
=
0x08
,
NoLoad
=
0x10
,
NoDelete
=
0x80
// ReSharper restore UnusedMember.Local
}
[
DllImport
(
"libdl.dylib"
,
EntryPoint
=
"dlopen"
)
]
public
static
extern
IntPtr
LoadLibrary
(
[
In
]
[
MarshalAs
(
UnmanagedType
.
LPStr
)
]
string
path
,
[
In
]
LoadLibraryFlags
flags
=
LoadLibraryFlags
.
Now
|
LoadLibraryFlags
.
Global
)
;
[
DllImport
(
"libdl.dylib"
,
EntryPoint
=
"dlclose"
)
]
public
static
extern
int
FreeLibrary
(
[
In
]
IntPtr
hLibrary
)
;
[
DllImport
(
"libdl.dylib"
,
EntryPoint
=
"dlerror"
)
]
public
static
extern
IntPtr
GetLoadLibraryErrorMessage
(
)
;
// ReSharper restore MemberHidesStaticFromOuterClass
}
#endregion
}
}
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