forked from External/mage
90 lines
2.8 KiB
Java
90 lines
2.8 KiB
Java
/*
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* Copyright 2010 BetaSteward_at_googlemail.com. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification, are
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* permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this list of
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* conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice, this list
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* of conditions and the following disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY BetaSteward_at_googlemail.com ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL BetaSteward_at_googlemail.com OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* The views and conclusions contained in the software and documentation are those of the
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* authors and should not be interpreted as representing official policies, either expressed
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* or implied, of BetaSteward_at_googlemail.com.
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*/
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package mage.util;
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import java.io.InputStream;
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/**
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* ByteArrayInputStream implementation that does not synchronize methods.
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*/
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public class FastByteArrayInputStream extends InputStream {
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/**
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* Our byte buffer
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*/
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protected byte[] buf = null;
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/**
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* Number of bytes that we can read from the buffer
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*/
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protected int count = 0;
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/**
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* Number of bytes that have been read from the buffer
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*/
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protected int pos = 0;
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public FastByteArrayInputStream(byte[] buf, int count) {
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this.buf = buf;
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this.count = count;
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}
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@Override
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public final int available() {
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return count - pos;
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}
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@Override
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public final int read() {
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return (pos < count) ? (buf[pos++] & 0xff) : -1;
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}
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@Override
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public final int read(byte[] b, int off, int len) {
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if (pos >= count)
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return -1;
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if ((pos + len) > count)
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len = (count - pos);
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System.arraycopy(buf, pos, b, off, len);
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pos += len;
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return len;
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}
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@Override
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public final long skip(long n) {
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if ((pos + n) > count)
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n = count - pos;
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if (n < 0)
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return 0;
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pos += n;
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return n;
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}
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}
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