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++ // Copyright 2009-2021 Intel Corporation
++ // SPDX-License-Identifier: Apache-2.0
++
++ #include "library.h"
++ #include "sysinfo.h"
++ #include "filename.h"
++
++ ////////////////////////////////////////////////////////////////////////////////
++ /// Windows Platform
++ ////////////////////////////////////////////////////////////////////////////////
++
++ #if defined(__WIN32__)
++
++ #define WIN32_LEAN_AND_MEAN
++ #include <windows.h>
++
++ namespace embree
++ {
++ /* opens a shared library */
++ lib_t openLibrary(const std::string& file)
++ {
++ std::string fullName = file+".dll";
++ FileName executable = getExecutableFileName();
++ HANDLE handle = LoadLibrary((executable.path() + fullName).c_str());
++ return lib_t(handle);
++ }
++
++ /* returns address of a symbol from the library */
++ void* getSymbol(lib_t lib, const std::string& sym) {
++ return (void*)GetProcAddress(HMODULE(lib),sym.c_str());
++ }
++
++ /* closes the shared library */
++ void closeLibrary(lib_t lib) {
++ FreeLibrary(HMODULE(lib));
++ }
++ }
++ #endif
++
++ ////////////////////////////////////////////////////////////////////////////////
++ /// Unix Platform
++ ////////////////////////////////////////////////////////////////////////////////
++
++ #if defined(__UNIX__)
++
++ #include <dlfcn.h>
++
++ namespace embree
++ {
++ /* opens a shared library */
++ lib_t openLibrary(const std::string& file)
++ {
++ #if defined(__MACOSX__)
++ std::string fullName = "lib"+file+".dylib";
++ #else
++ std::string fullName = "lib"+file+".so";
++ #endif
++ void* lib = dlopen(fullName.c_str(), RTLD_NOW);
++ if (lib) return lib_t(lib);
++ FileName executable = getExecutableFileName();
++ lib = dlopen((executable.path() + fullName).c_str(),RTLD_NOW);
++ if (lib == nullptr) {
++ const char* error = dlerror();
++ if (error) {
++ THROW_RUNTIME_ERROR(error);
++ } else {
++ THROW_RUNTIME_ERROR("could not load library "+executable.str());
++ }
++ }
++ return lib_t(lib);
++ }
++
++ /* returns address of a symbol from the library */
++ void* getSymbol(lib_t lib, const std::string& sym) {
++ return dlsym(lib,sym.c_str());
++ }
++
++ /* closes the shared library */
++ void closeLibrary(lib_t lib) {
++ dlclose(lib);
++ }
++ }
++ #endif