/*
 * Copyright 2011, Blender Foundation.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 */

#include <stdlib.h>

#include "util_dynlib.h"

#ifdef _WIN32

#include <Windows.h>

CCL_NAMESPACE_BEGIN

struct DynamicLibrary {
	HMODULE module;
};

DynamicLibrary *dynamic_library_open(const char *name)
{
	HMODULE module = LoadLibrary(name);

	if(!module)
		return NULL;

	DynamicLibrary *lib = new DynamicLibrary();
	lib->module = module;

	return lib;
}

void *dynamic_library_find(DynamicLibrary *lib, const char *name)
{
	return (void*)GetProcAddress(lib->module, name);
}

void dynamic_library_close(DynamicLibrary *lib)
{
	FreeLibrary(lib->module);
	delete lib;
}

CCL_NAMESPACE_END

#else

#include <dlfcn.h>

CCL_NAMESPACE_BEGIN

struct DynamicLibrary {
	void *module;
};

DynamicLibrary *dynamic_library_open(const char *name)
{
	void *module = dlopen(name, RTLD_NOW);

	if(!module)
		return NULL;

	DynamicLibrary *lib = new DynamicLibrary();
	lib->module = module;

	return lib;
}

void *dynamic_library_find(DynamicLibrary *lib, const char *name)
{
	return dlsym(lib->module, name);
}

void dynamic_library_close(DynamicLibrary *lib)
{
	dlclose(lib->module);
	delete lib;
}

CCL_NAMESPACE_END

#endif