umc_mail_box.h

这是在PCA下的基于IPP库示例代码例子,在网上下了IPP的库之后,设置相关参数就可以编译该代码.

/*//////////////////////////////////////////////////////////////////////////////
//
//                  INTEL CORPORATION PROPRIETARY INFORMATION
//     This software is supplied under the terms of a license agreement or
//     nondisclosure agreement with Intel Corporation and may not be copied
//     or disclosed except in accordance with the terms of that agreement.
//          Copyright(c) 2003-2005 Intel Corporation. All Rights Reserved.
//
*/

#ifndef __UMC_MAIL_BOX_H__
#define __UMC_MAIL_BOX_H__

#include "umc_mutex.h"

namespace UMC
{
    template <class T>
    class MailBox
    {
    public:
        MailBox():m_bHasMessage(false){}

        Status Init();
        Status Put(T& rMessage);
        Status Get(T& rMessage);

    protected:
        Mutex m_Access;
        bool m_bHasMessage;
        T m_Message;
    };
}  //  namespace UMC

template <class T>
UMC::Status
UMC::MailBox<T>::Init()
{
    m_bHasMessage = false;
    return m_Access.Init();
}

template <class T>
UMC::Status
UMC::MailBox<T>::Put(T& rMessage)
{
    Status umcRes = UMC_OK;
    m_Access.Lock();
    m_Message = rMessage;
    m_bHasMessage = true;
    m_Access.Unlock();
    return umcRes;
}

template <class T>
UMC::Status
UMC::MailBox<T>::Get(T& rMessage)
{
    Status umcRes = UMC_OK;
    m_Access.Lock();
    if (m_bHasMessage) {
        rMessage = m_Message;
        m_bHasMessage = false;
    }
    else
    {    umcRes = UMC_TIMEOUT;    }
    m_Access.Unlock();
    return umcRes;
}

#endif    //    __UMC_MAIL_BOX_H__