/*

 * 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

 * questions.

 */

package sun.nio.ch;

/**

 * Allows different platforms to call different native methods

 * for read and write operations.

 */

    int read(FileDescriptor fd, long address, int len) throws IOException {

        return read0(fd, address, len);

    }

    long readv(FileDescriptor fd, long address, int len) throws IOException {

        return readv0(fd, address, len);

    }

    int write(FileDescriptor fd, long address, int len) throws IOException {

        return write0(fd, address, len);

    }

    long writev(FileDescriptor fd, long address, int len) throws IOException {

        return writev0(fd, address, len);

    }

    void preClose(FileDescriptor fd) throws IOException {

        preClose0(fd);

    }

    void close(FileDescriptor fd) throws IOException {

        close0(fd);

    }

    static native int read0(FileDescriptor fd, long address, int len)

        throws IOException;

    static native long readv0(FileDescriptor fd, long address, int len)

        throws IOException;

    static native int write0(FileDescriptor fd, long address, int len)

        throws IOException;

    static native long writev0(FileDescriptor fd, long address, int len)

        throws IOException;

    static native void preClose0(FileDescriptor fd) throws IOException;

    static native void close0(FileDescriptor fd) throws IOException;

}