/*

 * Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code 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

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

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 */

package jdk.internal.loader;

/**

 * NativeLibrary represents a loaded native library instance.

 */

public interface NativeLibrary {

    String name();

    /**

     * Finds the address of the entry of the given name.  Returns 0

     * if not found.

     *

     * @param name the name of the symbol to be found

     */

    long find(String name);

    /**

     * Finds the address of the entry of the given name.

     *

     * @param name the name of the symbol to be found

     * @throws NoSuchMethodException if the named entry is not found.

     */

    default long lookup(String name) throws NoSuchMethodException {

        long addr = find(name);

        if (0 == addr) {

            throw new NoSuchMethodException("Cannot find symbol " + name + " in library " + name());

        }

        return addr;

    }

}