133 lines
3.5 KiB
Java
133 lines
3.5 KiB
Java
/*
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* Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/* @test
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* @bug 4854354
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* @summary Test vector write faster than can be read
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* @library ..
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*/
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import java.io.*;
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import java.net.*;
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import java.nio.*;
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import java.nio.channels.*;
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import java.util.*;
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public class Write {
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static Random generator = new Random();
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static int testSize = 15;
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public static void main(String[] args) throws Exception {
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WriteServer sv = new WriteServer();
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sv.start();
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bufferTest(sv.port());
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if (sv.finish(8000) == 0)
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throw new Exception("Failed" );
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}
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static void bufferTest(int port) throws Exception {
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ByteBuffer[] bufs = new ByteBuffer[testSize];
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for(int i=0; i<testSize; i++) {
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String source =
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"a muchmuchmuchmuchmuchmuchmuchmuch larger buffer numbered " +
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i;
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bufs[i] = ByteBuffer.allocateDirect(source.length());
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}
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// Get a connection to the server
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InetAddress lh = InetAddress.getLocalHost();
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InetSocketAddress isa = new InetSocketAddress(lh, port);
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SocketChannel sc = SocketChannel.open();
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sc.connect(isa);
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sc.configureBlocking(false);
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// Try to overflow the socket buffer
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long total = 0;
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for (int i=0; i<100; i++) {
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long bytesWritten = sc.write(bufs);
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if (bytesWritten > 0)
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total += bytesWritten;
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for(int j=0; j<testSize; j++)
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bufs[j].rewind();
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}
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// Clean up
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sc.close();
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}
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}
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class WriteServer extends TestThread {
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static Random generator = new Random();
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final ServerSocketChannel ssc;
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WriteServer() throws IOException {
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super("WriteServer");
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this.ssc = ServerSocketChannel.open().bind(new InetSocketAddress(0));
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}
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int port() {
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return ssc.socket().getLocalPort();
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}
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void go() throws Exception {
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bufferTest();
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}
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void bufferTest() throws Exception {
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ByteBuffer buf = ByteBuffer.allocateDirect(5);
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// Get a connection from client
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SocketChannel sc = null;
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try {
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ssc.configureBlocking(false);
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for (;;) {
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sc = ssc.accept();
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if (sc != null)
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break;
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Thread.sleep(50);
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}
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// I'm a slow reader...
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Thread.sleep(3000);
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} finally {
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// Clean up
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ssc.close();
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if (sc != null)
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sc.close();
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}
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}
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}
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