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/*
* Copyright (C) 2006-2008, Shawn O. Pearce <spearce@spearce.org> and others
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Distribution License v. 1.0 which is available at
* https://www.eclipse.org/org/documents/edl-v10.php.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
package org.eclipse.jgit.internal.storage.file;
import java.io.BufferedInputStream;
import java.io.EOFException;
import java.io.IOException;
import java.io.InputStream;
import org.eclipse.jgit.util.NB;
class XInputStream extends BufferedInputStream {
private final byte[] intbuf = new byte[8];
XInputStream(InputStream s) {
super(s);
}
synchronized byte[] readFully(final int len) throws IOException {
final byte[] b = new byte[len];
readFully(b, 0, len);
return b;
}
synchronized void readFully(byte[] b, int o, int len)
throws IOException {
int r;
while (len > 0 && (r = read(b, o, len)) > 0) {
o += r;
len -= r;
}
if (len > 0)
throw new EOFException();
}
int readUInt8() throws IOException {
final int r = read();
if (r < 0)
throw new EOFException();
return r;
}
long readUInt32() throws IOException {
readFully(intbuf, 0, 4);
return NB.decodeUInt32(intbuf, 0);
}
}
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