/*
 * GDevelop Core
 * Copyright 2008-2016 Florian Rival (Florian.Rival@gmail.com). All rights
 * reserved. This project is released under the MIT License.
 */

#ifndef DYNAMICLIBRARIESTOOLS_H
#define DYNAMICLIBRARIESTOOLS_H

#include <string>
#include "GDCore/String.h"

#if defined(WINDOWS)
#ifndef _WINDEF_
class HINSTANCE__;  // Forward or never
typedef HINSTANCE__* HINSTANCE;
#endif
typedef HINSTANCE Handle;
#elif defined(LINUX) || defined(MACOS)
typedef void* Handle;
#else
#warning system not supported for dynamic libraries loading
typedef void* Handle;
#endif

namespace gd {

/**
 * \brief Open a raw C++ dynamic library.
 *
 * On system with POSIX support, loading is made with RTLD_LAZY and RTLD_LOCAL
 * flags. If symbols of libraries need to be available globally, call
 * SetLibraryGlobal after.
 */
Handle GD_CORE_API OpenLibrary(const char* path);

/**
 * \brief Get a raw symbol from a raw C++ dynamic library
 */
void* GD_CORE_API GetSymbol(Handle library, const char* name);

/**
 * \brief Close a raw C++ dynamic library
 * \note Libraries are reference counted, so that the library will be really
 * freed from memory when CloseLibrary will be called with the same amount of
 * time OpenLibrary was called.
 */
void GD_CORE_API CloseLibrary(Handle library);

/**
 * \brief Get the last error occurred when loading a dynamic library
 */
gd::String GD_CORE_API DynamicLibraryLastError();

#if defined(LINUX) || defined(MACOS)
/**
 * \brief Set all symbols from a raw C++ dynamic library available ( RTLD_GLOBAL
 * )
 *
 * Useless for Windows : dynamic libraries opened have their symbols available
 * globally, and when getting a symbol, the lookup is properly made.
 */
Handle GD_CORE_API SetLibraryGlobal(const char* path);
#endif

};  // namespace gd

#endif  // DYNAMICLIBRARIESTOOLS_H