62 lines
1.7 KiB
C++
62 lines
1.7 KiB
C++
/*
|
|
Copyright (C) 2005 NSRT Team ( http://nsrt.edgeemu.com )
|
|
Copyright (C) 2002 Andrea Mazzoleni ( http://advancemame.sf.net )
|
|
Copyright (C) 2001-4 Igor Pavlov ( http://www.7-zip.org )
|
|
|
|
This library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
This library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with this library; if not, write to the Free Software
|
|
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
#include "inbyte.h"
|
|
|
|
namespace NStream{
|
|
|
|
CInByte::CInByte(UINT32 aBufferSize):
|
|
m_BufferBase(0),
|
|
m_BufferSize(aBufferSize)
|
|
{
|
|
m_BufferBase = new BYTE[m_BufferSize];
|
|
}
|
|
|
|
CInByte::~CInByte()
|
|
{
|
|
delete []m_BufferBase;
|
|
}
|
|
|
|
void CInByte::Init(ISequentialInStream *aStream)
|
|
{
|
|
m_Stream = aStream;
|
|
m_ProcessedSize = 0;
|
|
m_Buffer = m_BufferBase;
|
|
m_BufferLimit = m_Buffer;
|
|
m_StreamWasExhausted = false;
|
|
}
|
|
|
|
bool CInByte::ReadBlock()
|
|
{
|
|
if (m_StreamWasExhausted)
|
|
return false;
|
|
m_ProcessedSize += (m_Buffer - m_BufferBase);
|
|
UINT32 aNumProcessedBytes;
|
|
HRESULT aResult = m_Stream->Read(m_BufferBase, m_BufferSize, &aNumProcessedBytes);
|
|
if (aResult != S_OK)
|
|
throw aResult;
|
|
m_Buffer = m_BufferBase;
|
|
m_BufferLimit = m_Buffer + aNumProcessedBytes;
|
|
m_StreamWasExhausted = (aNumProcessedBytes == 0);
|
|
return (!m_StreamWasExhausted);
|
|
}
|
|
|
|
}
|