AOO410/main/hwpfilter/source/hstream.cpp

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 * Licensed to the Apache Software Foundation (ASF) under one
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 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
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#include <string.h>
#include <stdlib.h>
#include "hstream.h"

HStream::HStream() : size(0), pos(0)
{
    seq = 0;
}


HStream::~HStream()
{
    if( seq )
        free( seq );
}


void HStream::addData( const byte *buf, int aToAdd)
{
    seq = (byte *)realloc( seq, size + aToAdd );
    memcpy( seq + size, buf, aToAdd );
    size += aToAdd;
}


int HStream::readBytes(byte * buf, int aToRead)
{
    if (aToRead >= (size - pos))
        aToRead = size - pos;
    for (int i = 0; i < aToRead; i++)
        buf[i] = seq[pos++];
    return aToRead;
}


int HStream::skipBytes(int aToSkip)
{
    if (aToSkip >= (size - pos))
        aToSkip = size - pos;
    pos += aToSkip;
    return aToSkip;
}


int HStream::available()
{
    return size - pos;
}


void HStream::closeInput()
{
}