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 * 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.
 *
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package sun.security.action;

import jdk.internal.loader.BootLoader;

import java.io.*;

import java.security.AccessController;
import java.security.PrivilegedAction;

/**
 * A convenience class for loading a native library as a privileged action.
 */
public class LoadLibraryAction implements PrivilegedAction<Void> {
    private final String name;
    LoadLibraryAction(String name) {
        this.name = name;
    }

    @Override
    public Void run() {
        BootLoader.getNativeLibraries().loadLibrary(name);
        return null;
    }

    /**
     * Convenience method to load a native library without going through doPrivileged
     * if no security manager is present. This is unsafe for inclusion in a
     * public API but allowable here since this class is now encapsulated.
     *
     * Note: This should only be used by modules defined to the boot loader.
     *
     * @param name the library name
     */
    public static void privilegedLoadLibrary(String name) {
        assert name.indexOf(File.separatorChar) < 0;
        if (System.getSecurityManager() == null) {
            BootLoader.getNativeLibraries().loadLibrary(name);
        } else {
            AccessController.doPrivileged(new LoadLibraryAction(name));
        }
    }
}