PipeImpl.java

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
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 * 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).
 *
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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;
    }

}