JDK 11 java.base.jmod - Base Module

JDK 11 java.base.jmod is the JMOD file for JDK 11 Base module.

JDK 11 Base module compiled class files are stored in \fyicenter\jdk-11.0.1\jmods\java.base.jmod.

JDK 11 Base module compiled class files are also linked and stored in the \fyicenter\jdk-11.0.1\lib\modules JImage file.

JDK 11 Base module source code files are stored in \fyicenter\jdk-11.0.1\lib\src.zip\java.base.

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java/nio/channels/ReadableByteChannel.java

/*
 * Copyright (c) 2000, 2001, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
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package java.nio.channels;

import java.io.IOException;
import java.nio.ByteBuffer;


/**
 * A channel that can read bytes.
 *
 * <p> Only one read operation upon a readable channel may be in progress at
 * any given time.  If one thread initiates a read operation upon a channel
 * then any other thread that attempts to initiate another read operation will
 * block until the first operation is complete.  Whether or not other kinds of
 * I/O operations may proceed concurrently with a read operation depends upon
 * the type of the channel. </p>
 *
 *
 * @author Mark Reinhold
 * @author JSR-51 Expert Group
 * @since 1.4
 */

public interface ReadableByteChannel extends Channel {

    /**
     * Reads a sequence of bytes from this channel into the given buffer.
     *
     * <p> An attempt is made to read up to <i>r</i> bytes from the channel,
     * where <i>r</i> is the number of bytes remaining in the buffer, that is,
     * {@code dst.remaining()}, at the moment this method is invoked.
     *
     * <p> Suppose that a byte sequence of length <i>n</i> is read, where
     * {@code 0}&nbsp;{@code <=}&nbsp;<i>n</i>&nbsp;{@code <=}&nbsp;<i>r</i>.
     * This byte sequence will be transferred into the buffer so that the first
     * byte in the sequence is at index <i>p</i> and the last byte is at index
     * <i>p</i>&nbsp;{@code +}&nbsp;<i>n</i>&nbsp;{@code -}&nbsp;{@code 1},
     * where <i>p</i> is the buffer's position at the moment this method is
     * invoked.  Upon return the buffer's position will be equal to
     * <i>p</i>&nbsp;{@code +}&nbsp;<i>n</i>; its limit will not have changed.
     *
     * <p> A read operation might not fill the buffer, and in fact it might not
     * read any bytes at all.  Whether or not it does so depends upon the
     * nature and state of the channel.  A socket channel in non-blocking mode,
     * for example, cannot read any more bytes than are immediately available
     * from the socket's input buffer; similarly, a file channel cannot read
     * any more bytes than remain in the file.  It is guaranteed, however, that
     * if a channel is in blocking mode and there is at least one byte
     * remaining in the buffer then this method will block until at least one
     * byte is read.
     *
     * <p> This method may be invoked at any time.  If another thread has
     * already initiated a read operation upon this channel, however, then an
     * invocation of this method will block until the first operation is
     * complete. </p>
     *
     * @param  dst
     *         The buffer into which bytes are to be transferred
     *
     * @return  The number of bytes read, possibly zero, or {@code -1} if the
     *          channel has reached end-of-stream
     *
     * @throws  NonReadableChannelException
     *          If this channel was not opened for reading
     *
     * @throws  ClosedChannelException
     *          If this channel is closed
     *
     * @throws  AsynchronousCloseException
     *          If another thread closes this channel
     *          while the read operation is in progress
     *
     * @throws  ClosedByInterruptException
     *          If another thread interrupts the current thread
     *          while the read operation is in progress, thereby
     *          closing the channel and setting the current thread's
     *          interrupt status
     *
     * @throws  IOException
     *          If some other I/O error occurs
     */
    public int read(ByteBuffer dst) throws IOException;

}

java/nio/channels/ReadableByteChannel.java

 

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File name: java.base-11.0.1-src.zip
File size: 8740354 bytes
Release date: 2018-11-04
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