| /* |
| * 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); |
| } |
| } |