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/*****************************************************************************
* *
* OpenNI 2.x Alpha *
* Copyright (C) 2012 PrimeSense Ltd. *
* *
* This file is part of OpenNI. *
* *
* Licensed 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 *
* *
* http://www.apache.org/licenses/LICENSE-2.0 *
* *
* Unless required by applicable law or agreed to in writing, software *
* distributed under the License is distributed on an "AS IS" BASIS, *
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. *
* See the License for the specific language governing permissions and *
* limitations under the License. *
* *
*****************************************************************************/
//---------------------------------------------------------------------------
// Includes
//---------------------------------------------------------------------------
#include "XnDataProcessorHolder.h"
#include <XnOS.h>
//---------------------------------------------------------------------------
// Code
//---------------------------------------------------------------------------
XnDataProcessorHolder::XnDataProcessorHolder() :
m_hLock(NULL),
m_pProcessor(NULL)
{
}
XnDataProcessorHolder::~XnDataProcessorHolder()
{
xnOSCloseCriticalSection(&m_hLock);
XN_DELETE(m_pProcessor);
}
XnStatus XnDataProcessorHolder::Init()
{
XnStatus nRetVal = XN_STATUS_OK;
nRetVal = xnOSCreateCriticalSection(&m_hLock);
XN_IS_STATUS_OK(nRetVal);
return (XN_STATUS_OK);
}
void XnDataProcessorHolder::Lock()
{
xnOSEnterCriticalSection(&m_hLock);
}
void XnDataProcessorHolder::Unlock()
{
xnOSLeaveCriticalSection(&m_hLock);
}
void XnDataProcessorHolder::Replace(XnDataProcessor* pNew)
{
// lock first, to make sure processor is not in use right now
Lock();
if (m_pProcessor != NULL)
{
XN_DELETE(m_pProcessor);
}
m_pProcessor = pNew;
Unlock();
}
void XnDataProcessorHolder::ProcessData(const XnSensorProtocolResponseHeader* pHeader, const XnUChar* pData, XnUInt32 nDataOffset, XnUInt32 nDataSize)
{
if (m_pProcessor == NULL)
return;
// lock first
Lock();
// check again (it could have been replaced while we waited to lock)
if (m_pProcessor != NULL)
{
m_pProcessor->ProcessData(pHeader, pData, nDataOffset, nDataSize);
}
Unlock();
}
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