hwpfilter/source/hstream.cxx

   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.hxx"
  23
  24 HStream::HStream()
  25     : pos(0)
  26 {
  27 }
  28
  29 void HStream::addData(const byte *buf, size_t aToAdd)
  30 {
  31     seq.insert(seq.end(), buf, buf + aToAdd);
  32 }
  33
  34 size_t HStream::readBytes(byte * buf, size_t aToRead)
  35 {
  36     auto size = seq.size();
  37     if (aToRead >= (size - pos))
  38         aToRead = size - pos;
  39     for (size_t i = 0; i < aToRead; ++i)
  40         buf[i] = seq[pos++];
  41     return aToRead;
  42 }
  43
  44 size_t HStream::skipBytes(size_t aToSkip)
  45 {
  46     auto size = seq.size();
  47     if (aToSkip >= (size - pos))
  48         aToSkip = size - pos;
  49     pos += aToSkip;
  50     return aToSkip;
  51 }
  52
  53 size_t HStream::available() const
  54 {
  55     return seq.size() - pos;
  56 }
  57
  58 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */