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-rw-r--r--Source/cmDynamicLoaderC.c118
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diff --git a/Source/cmDynamicLoaderC.c b/Source/cmDynamicLoaderC.c
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-/*=========================================================================
-
- 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.
-
-=========================================================================*/
-
-/*
- * This file is actually 4 different implementations.
- * 1. HP machines which uses shl_load
- * 2. Apple OSX which uses NSLinkModule
- * 3. Windows which uses LoadLibrary
- * 4. Most unix systems which use dlopen (default )
- * Each part of the ifdef contains a complete implementation for
- * the static methods of cmDynamicLoader.
- */
-
-/* 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
-
-typedef void (*cmDynamicLoaderFunction)();
-
-/* --------------------------------------------------------------- */
-/* 1. Implementation for HPUX machines */
-#ifdef __hpux
-#define CMDYNAMICLOADER_DEFINED 1
-#include <dl.h>
-
-cmDynamicLoaderFunction cmDynamicLoaderGetSymbolAddress(cmLibHandle lib,
- const char* sym)
-{
- void* addr;
- int status;
-
- status = shl_findsym (&lib, sym, TYPE_PROCEDURE, &addr);
- return (cmDynamicLoaderFunction)((status < 0) ? (void*)0 : addr);
-}
-#endif
-
-
-/* --------------------------------------------------------------- */
-/* 2. Implementation for Darwin (including OSX) Machines */
-
-#ifdef __APPLE__
-#define CMDYNAMICLOADER_DEFINED
-#include <mach-o/dyld.h>
-
-cmDynamicLoaderFunction cmDynamicLoaderGetSymbolAddress(cmLibHandle lib,
- const char* sym)
-{
- void *result=0;
- if(NSIsSymbolNameDefined(sym))
- {
- NSSymbol symbol= NSLookupAndBindSymbol(sym);
- if(symbol)
- {
- result = NSAddressOfSymbol(symbol);
- }
- }
- return (cmDynamicLoaderFunction)result;
-}
-#endif
-
-
-/* --------------------------------------------------------------- */
-/* 3. Implementation for Windows win32 code */
-#ifdef _WIN32
-#include <windows.h>
-#define CMDYNAMICLOADER_DEFINED 1
-
-cmDynamicLoaderFunction cmDynamicLoaderGetSymbolAddress(cmLibHandle lib,
- const char* sym)
-{
-#ifdef UNICODE
- wchar_t *wsym = new wchar_t [mbstowcs(NULL, sym, 32000)];
- mbstowcs(wsym, sym, 32000);
- void *ret = GetProcAddress(lib, wsym);
- delete [] wsym;
- return (cmDynamicLoaderFunction)ret;
-#else
- return (cmDynamicLoaderFunction)GetProcAddress(lib, sym);
-#endif
-}
-#endif
-
-/* --------------------------------------------------------------- */
-/* 4. Implementation for default UNIX machines.
- if nothing has been defined then use this */
-#ifndef CMDYNAMICLOADER_DEFINED
-#define CMDYNAMICLOADER_DEFINED
-/* Setup for most unix machines */
-#include <dlfcn.h>
-
-cmDynamicLoaderFunction cmDynamicLoaderGetSymbolAddress(cmLibHandle lib,
- const char* sym)
-{
- return (cmDynamicLoaderFunction)dlsym(lib, sym);
-}
-#endif