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wowlet/contrib/openvr/src/vrcommon/sharedlibtools_public.cpp

64 lines
1.2 KiB

//========= Copyright Valve Corporation ============//
#include <vrcommon/sharedlibtools_public.h>
#include <string.h>
#if defined(_WIN32)
#include <windows.h>
#endif
#if defined(POSIX)
#include <dlfcn.h>
#endif
SharedLibHandle SharedLib_Load( const char *pchPath, uint32_t *pErrorCode )
{
SharedLibHandle pHandle = nullptr;
#if defined( _WIN32)
pHandle = ( SharedLibHandle )LoadLibraryEx( pchPath, NULL, LOAD_WITH_ALTERED_SEARCH_PATH );
#elif defined(POSIX)
pHandle = (SharedLibHandle) dlopen(pchPath, RTLD_LOCAL|RTLD_NOW);
#endif
if ( pErrorCode )
{
if ( pHandle == nullptr )
{
#if defined( _WIN32)
*pErrorCode = ( uint32_t ) GetLastError();
#elif defined(POSIX)
*pErrorCode = 1;
#endif
}
else
{
*pErrorCode = 0;
}
}
return pHandle;
}
void *SharedLib_GetFunction( SharedLibHandle lib, const char *pchFunctionName)
{
#if defined( _WIN32)
return (void*)GetProcAddress( (HMODULE)lib, pchFunctionName );
#elif defined(POSIX)
return dlsym( lib, pchFunctionName );
#endif
}
void SharedLib_Unload( SharedLibHandle lib )
{
if ( !lib )
return;
#if defined( _WIN32)
FreeLibrary( (HMODULE)lib );
#elif defined(POSIX)
dlclose( lib );
#endif
}