73 lines
2.3 KiB
Java
73 lines
2.3 KiB
Java
/*
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* Copyright (c) 2001, 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 4526754
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* @summary Test Pipe scattering reads
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* @key randomness
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*/
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import java.nio.channels.*;
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import java.nio.*;
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import java.util.Random;
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public class ScatteringRead {
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private static Random generator = new Random();
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public static void main(String[] args) throws Exception {
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scScatter();
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}
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private static void scScatter() throws Exception {
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Pipe p = Pipe.open();
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Pipe.SinkChannel sink = p.sink();
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Pipe.SourceChannel source = p.source();
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sink.configureBlocking(false);
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ByteBuffer outgoingdata = ByteBuffer.allocateDirect(30);
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byte[] someBytes = new byte[30];
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generator.nextBytes(someBytes);
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outgoingdata.put(someBytes);
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outgoingdata.flip();
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int totalWritten = 0;
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while (totalWritten < 30) {
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int written = sink.write(outgoingdata);
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if (written < 0)
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throw new Exception("Write failed");
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totalWritten += written;
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}
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ByteBuffer[] bufs = new ByteBuffer[3];
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for(int i=0; i<3; i++)
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bufs[i] = ByteBuffer.allocateDirect(10);
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long numBytesRead = source.read(bufs);
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if (numBytesRead < 30)
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throw new Exception("Pipe test failed");
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sink.close();
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source.close();
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}
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}
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