/*

 * 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

 * or visit www.oracle.com if you need additional information or have any

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 */

package jdk.net;

import java.net.SocketException;

import jdk.net.RdmaSocketOptions.PlatformRdmaSocketOptions;

class LinuxRdmaSocketOptions extends PlatformRdmaSocketOptions {

    private static final UnsupportedOperationException unsupported;

    private static final Void checkSupported() {

        if (unsupported != null)

            throw new UnsupportedOperationException(unsupported.getMessage(), unsupported);

        else

            return null;

    }

    public LinuxRdmaSocketOptions() {

        this(checkSupported());

    }

    private LinuxRdmaSocketOptions(Void unused) { }

    @Override native void setSockOpt(int fd, int opt, int value)

            throws SocketException;

    @Override native int getSockOpt(int fd, int opt)

            throws SocketException;

    @Override native boolean rdmaSocketSupported();

    static {

        java.security.AccessController.doPrivileged(

            new java.security.PrivilegedAction<>() {

                public Void run() {

                    System.loadLibrary("extnet");

                    return null;

                }

            });

        UnsupportedOperationException uoe = null;

        try {

            init();

        } catch (UnsupportedOperationException e) {

            uoe = e;

        }

        unsupported = uoe;

    }

    private static native void init() throws UnsupportedOperationException;

}