Line data    Source code

       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /*
       3             :  * This file is part of the LibreOffice project.
       4             :  *
       5             :  * This Source Code Form is subject to the terms of the Mozilla Public
       6             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8             :  *
       9             :  * This file incorporates work covered by the following license notice:
      10             :  *
      11             :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12             :  *   contributor license agreements. See the NOTICE file distributed
      13             :  *   with this work for additional information regarding copyright
      14             :  *   ownership. The ASF licenses this file to you under the Apache
      15             :  *   License, Version 2.0 (the "License"); you may not use this file
      16             :  *   except in compliance with the License. You may obtain a copy of
      17             :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18             :  */
      19             : 
      20             : #include <string.h>
      21             : #include <stdlib.h>
      22             : #include "hstream.h"
      23             : 
      24           4 : HStream::HStream() : size(0), pos(0)
      25             : {
      26           4 :     seq = 0;
      27           4 : }
      28             : 
      29             : 
      30           8 : HStream::~HStream()
      31             : {
      32           4 :     if( seq )
      33           4 :         free( seq );
      34           8 : }
      35             : 
      36             : 
      37           4 : void HStream::addData( const byte *buf, int aToAdd)
      38             : {
      39           4 :     seq = (byte *)realloc( seq, size + aToAdd );
      40           4 :     memcpy( seq + size, buf, aToAdd );
      41           4 :     size += aToAdd;
      42           4 : }
      43             : 
      44             : 
      45        1224 : int HStream::readBytes(byte * buf, int aToRead)
      46             : {
      47        1224 :     if (aToRead >= (size - pos))
      48           2 :         aToRead = size - pos;
      49       24358 :     for (int i = 0; i < aToRead; i++)
      50       23134 :         buf[i] = seq[pos++];
      51        1224 :     return aToRead;
      52             : }
      53             : 
      54             : 
      55           0 : int HStream::skipBytes(int aToSkip)
      56             : {
      57           0 :     if (aToSkip >= (size - pos))
      58           0 :         aToSkip = size - pos;
      59           0 :     pos += aToSkip;
      60           0 :     return aToSkip;
      61             : }
      62             : 
      63             : 
      64           4 : int HStream::available() const
      65             : {
      66           4 :     return size - pos;
      67             : }
      68             : 
      69             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */