mirror of
https://github.com/reactos/CMake.git
synced 2024-12-04 17:56:26 +00:00
92 lines
2.9 KiB
C++
92 lines
2.9 KiB
C++
/*=========================================================================
|
|
|
|
Program: Insight Segmentation & Registration Toolkit
|
|
Module: $RCSfile$
|
|
Language: C++
|
|
Date: $Date$
|
|
Version: $Revision$
|
|
|
|
Copyright (c) 2002 Insight Consortium. All rights reserved.
|
|
See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.
|
|
|
|
This software is distributed WITHOUT ANY WARRANTY; without even
|
|
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
|
|
PURPOSE. See the above copyright notices for more information.
|
|
|
|
=========================================================================*/
|
|
// .NAME cmDynamicLoader - class interface to system dynamic libraries
|
|
// .SECTION Description
|
|
// cmDynamicLoader provides a portable interface to loading dynamic
|
|
// libraries into a process.
|
|
|
|
|
|
#ifndef __cmDynamicLoader_h
|
|
#define __cmDynamicLoader_h
|
|
|
|
#include "cmStandardIncludes.h"
|
|
|
|
// Ugly stuff for library handles
|
|
// They are different on several different OS's
|
|
#if defined(__hpux)
|
|
# include <dl.h>
|
|
typedef shl_t cmLibHandle;
|
|
#elif defined(_WIN32)
|
|
#include <windows.h>
|
|
typedef HMODULE cmLibHandle;
|
|
#else
|
|
typedef void* cmLibHandle;
|
|
#endif
|
|
|
|
// C++ Does not allow casts from pointer-to-data types to
|
|
// pointer-to-function types. However, the return type from each
|
|
// platform's symbol lookup implementation is void*. We need to hide
|
|
// the cast from void* to a pointer-to-function type in C code. The
|
|
// implementation of cmDynamicLoader::GetSymbolAddress simply calls a
|
|
// C-based implementation in cmDynamicLoaderC.c. This
|
|
// cmDynamicLoaderFunction type is the return type of
|
|
// cmDynamicLoader::GetSymbolAddress and can be cast to any other
|
|
// pointer-to-function type safely in C++.
|
|
extern "C" { typedef void (*cmDynamicLoaderFunction)(); }
|
|
|
|
class cmDynamicLoader
|
|
{
|
|
public:
|
|
// Description:
|
|
// Load a dynamic library into the current process.
|
|
// The returned cmLibHandle can be used to access the symbols in the
|
|
// library.
|
|
static cmLibHandle OpenLibrary(const char*);
|
|
|
|
// Description:
|
|
// Attempt to detach a dynamic library from the
|
|
// process. A value of true is returned if it is successful.
|
|
static int CloseLibrary(cmLibHandle);
|
|
|
|
// Description:
|
|
// Find the address of the symbol in the given library
|
|
static cmDynamicLoaderFunction GetSymbolAddress(cmLibHandle, const char*);
|
|
|
|
// Description:
|
|
// Return the library prefix for the given architecture
|
|
static const char* LibPrefix();
|
|
|
|
// Description:
|
|
// Return the library extension for the given architecture
|
|
static const char* LibExtension();
|
|
|
|
// Description:
|
|
// Return the last error produced from a calls made on this class.
|
|
static const char* LastError();
|
|
|
|
protected:
|
|
cmDynamicLoader() {};
|
|
~cmDynamicLoader() {};
|
|
|
|
|
|
private:
|
|
cmDynamicLoader(const cmDynamicLoader&); // Not implemented.
|
|
void operator=(const cmDynamicLoader&); // Not implemented.
|
|
};
|
|
|
|
#endif
|