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Diffstat (limited to 'thirdparty/embree/common/sys/library.cpp')
-rw-r--r-- | thirdparty/embree/common/sys/library.cpp | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/thirdparty/embree/common/sys/library.cpp b/thirdparty/embree/common/sys/library.cpp new file mode 100644 index 0000000000..fc983dffd5 --- /dev/null +++ b/thirdparty/embree/common/sys/library.cpp @@ -0,0 +1,83 @@ +// 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 |