JDK14/Java14源码在线阅读

/*
 * Copyright (c) 2000, 2018, 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) throws IOException {
        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();

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