| /* |
| * Copyright (c) 2001, 2017, 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 6253145 |
| * @key intermittent |
| * @summary Test FileChannel.transferTo with file positions up to 8GB |
| * @run testng/timeout=300 TransferTo6GBFile |
| */ |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.io.PrintStream; |
| import java.io.RandomAccessFile; |
| import java.net.InetAddress; |
| import java.net.InetSocketAddress; |
| import java.nio.ByteBuffer; |
| import java.nio.channels.FileChannel; |
| import java.nio.channels.ServerSocketChannel; |
| import java.nio.channels.SocketChannel; |
| import java.util.concurrent.TimeUnit; |
| |
| import org.testng.annotations.Test; |
| |
| public class TransferTo6GBFile { |
| |
| private static PrintStream err = System.err; |
| private static PrintStream out = System.out; |
| |
| // Test transferTo with file positions larger than 2 and 4GB |
| @Test |
| public void xferTest08() throws Exception { // for bug 6253145 |
| final long G = 1024L * 1024L * 1024L; |
| |
| // Create 6GB file |
| |
| File file = File.createTempFile("source", null); |
| file.deleteOnExit(); |
| |
| RandomAccessFile raf = new RandomAccessFile(file, "rw"); |
| FileChannel fc = raf.getChannel(); |
| |
| out.println(" Writing large file..."); |
| long t0 = System.nanoTime(); |
| try { |
| fc.write(ByteBuffer.wrap("0123456789012345".getBytes("UTF-8")), 6*G); |
| long t1 = System.nanoTime(); |
| out.printf(" Wrote large file in %d ns (%d ms) %n", |
| t1 - t0, TimeUnit.NANOSECONDS.toMillis(t1 - t0)); |
| } catch (IOException x) { |
| err.println(" Unable to create test file:" + x); |
| fc.close(); |
| return; |
| } |
| |
| // Setup looback connection and echo server |
| |
| ServerSocketChannel ssc = ServerSocketChannel.open(); |
| ssc.socket().bind(new InetSocketAddress(0)); |
| |
| InetAddress lh = InetAddress.getLocalHost(); |
| InetSocketAddress isa = new InetSocketAddress(lh, ssc.socket().getLocalPort()); |
| SocketChannel source = SocketChannel.open(isa); |
| SocketChannel sink = ssc.accept(); |
| |
| Thread thr = new Thread(new EchoServer(sink)); |
| thr.start(); |
| |
| // Test data is array of positions and counts |
| |
| long testdata[][] = { |
| { 2*G-1, 1 }, |
| { 2*G-1, 10 }, // across 2GB boundary |
| { 2*G, 1 }, |
| { 2*G, 10 }, |
| { 2*G+1, 1 }, |
| { 4*G-1, 1 }, |
| { 4*G-1, 10 }, // across 4GB boundary |
| { 4*G, 1 }, |
| { 4*G, 10 }, |
| { 4*G+1, 1 }, |
| { 5*G-1, 1 }, |
| { 5*G-1, 10 }, |
| { 5*G, 1 }, |
| { 5*G, 10 }, |
| { 5*G+1, 1 }, |
| { 6*G, 1 }, |
| }; |
| |
| ByteBuffer sendbuf = ByteBuffer.allocateDirect(100); |
| ByteBuffer readbuf = ByteBuffer.allocateDirect(100); |
| |
| try { |
| byte value = 0; |
| for (int i=0; i<testdata.length; i++) { |
| long position = testdata[(int)i][0]; |
| long count = testdata[(int)i][1]; |
| |
| // generate bytes |
| for (long j=0; j<count; j++) { |
| sendbuf.put(++value); |
| } |
| sendbuf.flip(); |
| |
| // write to file and transfer to echo server |
| fc.write(sendbuf, position); |
| t0 = System.nanoTime(); |
| fc.transferTo(position, count, source); |
| out.printf(" transferTo(%d, %2d, source): %d ns%n", |
| position, count, System.nanoTime() - t0); |
| |
| // read from echo server |
| long nread = 0; |
| while (nread < count) { |
| int n = source.read(readbuf); |
| if (n < 0) |
| throw new RuntimeException("Premature EOF!"); |
| nread += n; |
| } |
| |
| // check reply from echo server |
| readbuf.flip(); |
| sendbuf.flip(); |
| if (!readbuf.equals(sendbuf)) |
| throw new RuntimeException("Echoed bytes do not match!"); |
| readbuf.clear(); |
| sendbuf.clear(); |
| } |
| } finally { |
| source.close(); |
| ssc.close(); |
| fc.close(); |
| file.delete(); |
| } |
| } |
| |
| /** |
| * Simple in-process server to echo bytes read by a given socket channel |
| */ |
| static class EchoServer implements Runnable { |
| private SocketChannel sc; |
| |
| public EchoServer(SocketChannel sc) { |
| this.sc = sc; |
| } |
| |
| public void run() { |
| ByteBuffer bb = ByteBuffer.allocateDirect(1024); |
| try { |
| for (;;) { |
| int n = sc.read(bb); |
| if (n < 0) |
| break; |
| |
| bb.flip(); |
| while (bb.remaining() > 0) { |
| sc.write(bb); |
| } |
| bb.clear(); |
| } |
| } catch (IOException x) { |
| x.printStackTrace(); |
| } finally { |
| try { |
| sc.close(); |
| } catch (IOException ignore) { } |
| } |
| } |
| } |
| } |