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// Helper for
// Copyright (c) 2001 Free Software Foundation
// This file is part of Mauve.
// Tags: not-a-test
package gnu.testlet.java.io.BufferedOutputStream;
import java.io.*;
public class helper extends OutputStream
{
// Number of bytes we've read.
int count;
// When we should stop.
int stop;
public helper (int size)
{
stop = size;
}
private void update (int howmuch) throws InterruptedIOException
{
if (count + howmuch > stop)
{
InterruptedIOException ioe = new InterruptedIOException ();
ioe.bytesTransferred = stop - count;
count = stop;
throw ioe;
}
count += howmuch;
}
public void write (int b) throws InterruptedIOException
{
update (1);
}
public void write (byte[] b, int off, int len) throws InterruptedIOException
{
if (off < 0 || len < 0 || off + len > b.length)
throw new ArrayIndexOutOfBoundsException ();
update (len);
}
}
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