| /* |
| * Copyright (c) 2003, 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. |
| * |
| * 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 |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* @test |
| * @bug 4854354 |
| * @summary Test vector write faster than can be read |
| * @library .. |
| */ |
| |
| import java.io.*; |
| import java.net.*; |
| import java.nio.*; |
| import java.nio.channels.*; |
| import java.util.*; |
| |
| |
| public class Write { |
| |
| static Random generator = new Random(); |
| |
| static int testSize = 15; |
| |
| public static void main(String[] args) throws Exception { |
| WriteServer sv = new WriteServer(); |
| sv.start(); |
| bufferTest(sv.port()); |
| if (sv.finish(8000) == 0) |
| throw new Exception("Failed" ); |
| } |
| |
| static void bufferTest(int port) throws Exception { |
| ByteBuffer[] bufs = new ByteBuffer[testSize]; |
| for(int i=0; i<testSize; i++) { |
| String source = |
| "a muchmuchmuchmuchmuchmuchmuchmuch larger buffer numbered " + |
| i; |
| bufs[i] = ByteBuffer.allocateDirect(source.length()); |
| } |
| |
| // Get a connection to the server |
| InetAddress lh = InetAddress.getLocalHost(); |
| InetSocketAddress isa = new InetSocketAddress(lh, port); |
| SocketChannel sc = SocketChannel.open(); |
| sc.connect(isa); |
| sc.configureBlocking(false); |
| |
| // Try to overflow the socket buffer |
| long total = 0; |
| for (int i=0; i<100; i++) { |
| long bytesWritten = sc.write(bufs); |
| if (bytesWritten > 0) |
| total += bytesWritten; |
| for(int j=0; j<testSize; j++) |
| bufs[j].rewind(); |
| } |
| |
| // Clean up |
| sc.close(); |
| } |
| |
| } |
| |
| |
| class WriteServer extends TestThread { |
| |
| static Random generator = new Random(); |
| |
| |
| final ServerSocketChannel ssc; |
| |
| WriteServer() throws IOException { |
| super("WriteServer"); |
| this.ssc = ServerSocketChannel.open().bind(new InetSocketAddress(0)); |
| } |
| |
| int port() { |
| return ssc.socket().getLocalPort(); |
| } |
| |
| void go() throws Exception { |
| bufferTest(); |
| } |
| |
| void bufferTest() throws Exception { |
| ByteBuffer buf = ByteBuffer.allocateDirect(5); |
| |
| // Get a connection from client |
| SocketChannel sc = null; |
| |
| try { |
| ssc.configureBlocking(false); |
| |
| for (;;) { |
| sc = ssc.accept(); |
| if (sc != null) |
| break; |
| Thread.sleep(50); |
| } |
| |
| // I'm a slow reader... |
| Thread.sleep(3000); |
| |
| } finally { |
| // Clean up |
| ssc.close(); |
| if (sc != null) |
| sc.close(); |
| } |
| |
| } |
| |
| } |