/*

 * Copyright (c) 2000, 2010, 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 sun.nio.ch;

import java.io.*;

import java.nio.channels.*;

import java.nio.channels.spi.*;

class PipeImpl

    extends Pipe

{

    // Source and sink channels

    private final SourceChannel source;

    private final SinkChannel sink;

    PipeImpl(SelectorProvider sp) {

        long pipeFds = IOUtil.makePipe(true);

        int readFd = (int) (pipeFds >>> 32);

        int writeFd = (int) pipeFds;

        FileDescriptor sourcefd = new FileDescriptor();

        IOUtil.setfdVal(sourcefd, readFd);

        source = new SourceChannelImpl(sp, sourcefd);

        FileDescriptor sinkfd = new FileDescriptor();

        IOUtil.setfdVal(sinkfd, writeFd);

        sink = new SinkChannelImpl(sp, sinkfd);

    }

    public SourceChannel source() {

        return source;

    }

    public SinkChannel sink() {

        return sink;

    }

}