/*
	Copyright (c) 2009-2011 Olivier Chafik, All Rights Reserved
	
	This file is part of JNAerator (http://jnaerator.googlecode.com/).
	
	JNAerator is free software: you can redistribute it and/or modify
	it under the terms of the GNU Lesser General Public License as published by
	the Free Software Foundation, either version 3 of the License, or
	(at your option) any later version.
	
	JNAerator 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 Lesser General Public License for more details.
	
	You should have received a copy of the GNU Lesser General Public License
	along with JNAerator.  If not, see <http://www.gnu.org/licenses/>.
*/
package com.ochafik.lang.jnaerator.runtime.globals;

import com.sun.jna.NativeLibrary;
import com.sun.jna.Pointer;

public abstract class Global {
	protected String[] symbols;
	protected NativeLibrary library;
	protected Pointer pointer;
	public Global(NativeLibrary library, String... symbols) {
		this.symbols = symbols;
		this.library = library;
	}
	protected Pointer getPointer() {
		if (pointer == null)
			for (String symbol : symbols)
				if ((pointer = library.getGlobalVariableAddress(symbol)) != null)
					break;
		return pointer;
	}
}