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/*******************************************************************************
* Copyright (c) 2009 STMicroelectronics.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Xavier Raynaud <xavier.raynaud@st.com> - initial API and implementation
*******************************************************************************/
package org.eclipse.linuxtools.internal.gcov.utils;
import java.io.DataInput;
import java.io.DataInputStream;
import java.io.IOException;
/**
*
*/
public class BEDataInputStream implements DataInput {
private final DataInputStream in;
private final byte[] buffer = new byte[8];
/**
* Constructor
* @param in
*/
public BEDataInputStream(DataInputStream in) {
this.in = in;
}
@Override
public final short readShort() throws IOException
{
return in.readShort();
}
@Override
public final int readUnsignedShort() throws IOException
{
return in.readUnsignedShort();
}
@Override
public final char readChar() throws IOException
{
return in.readChar();
}
@Override
public final int readInt() throws IOException
{
return in.readInt();
}
@Override
public final long readLong() throws IOException
{
in.readFully(buffer, 0, 8);
return (((long)buffer[7] << 32) +
((long)(buffer[6] & 255) << 40) +
((long)(buffer[5] & 255) << 48) +
((long)(buffer[4] & 255) << 56) +
((long)(buffer[3] & 255) << 0) +
((buffer[2] & 255) << 8) +
((buffer[1] & 255) << 16) +
((buffer[0] & 255) << 24));
}
@Override
public final float readFloat() throws IOException
{
return Float.intBitsToFloat(readInt());
}
@Override
public final double readDouble() throws IOException
{
return Double.longBitsToDouble(readLong());
}
@Override
public boolean readBoolean() throws IOException {
return in.readBoolean();
}
@Override
public byte readByte() throws IOException {
return in.readByte();
}
@Override
public void readFully(byte[] b) throws IOException {
in.readFully(b);
}
@Override
public void readFully(byte[] b, int off, int len) throws IOException {
in.readFully(b,off,len);
}
@Override
@Deprecated
public String readLine() throws IOException {
return in.readLine();
}
@Override
public String readUTF() throws IOException {
return in.readUTF();
}
@Override
public int readUnsignedByte() throws IOException {
return in.readUnsignedByte();
}
@Override
public int skipBytes(int n) throws IOException {
return in.skipBytes(n);
}
/**
* Close this stream.
*/
public void close() throws IOException {
in.close();
}
public final long readUnsignedInt() throws IOException
{
in.readFully(buffer, 0, 4);
return
((
(buffer[0]) << 24 |
(buffer[1]&0xff) << 16 |
(buffer[2]&0xff) << 8 |
(buffer[3]&0xff)
)
& MasksGenerator.UNSIGNED_INT_MASK );
}
}
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