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      1 /*
      2  * Copyright (c) 2011-2014, Intel Corporation
      3  * All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without modification,
      6  * are permitted provided that the following conditions are met:
      7  *
      8  * 1. Redistributions of source code must retain the above copyright notice, this
      9  * list of conditions and the following disclaimer.
     10  *
     11  * 2. Redistributions in binary form must reproduce the above copyright notice,
     12  * this list of conditions and the following disclaimer in the documentation and/or
     13  * other materials provided with the distribution.
     14  *
     15  * 3. Neither the name of the copyright holder nor the names of its contributors
     16  * may be used to endorse or promote products derived from this software without
     17  * specific prior written permission.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
     20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     21  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     22  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
     23  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     24  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     25  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
     26  * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
     28  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 #pragma once
     31 
     32 #include <stdint.h>
     33 #include "BinaryStream.h"
     34 #include <string>
     35 
     36 class CParameterBlackboard
     37 {
     38 public:
     39     CParameterBlackboard();
     40     ~CParameterBlackboard();
     41 
     42     // Size
     43     void setSize(uint32_t uiSize);
     44     uint32_t getSize() const;
     45 
     46     // Single parameter access
     47     void writeInteger(const void* pvSrcData, uint32_t uiSize, uint32_t uiOffset, bool bBigEndian);
     48     void readInteger(void* pvDstData, uint32_t uiSize, uint32_t uiOffset, bool bBigEndian) const;
     49     void writeString(const std::string &input, uint32_t uiOffset);
     50     void readString(std::string &output, uint32_t uiOffset) const;
     51 
     52     // Access from/to subsystems
     53     uint8_t* getLocation(uint32_t uiOffset);
     54 
     55     // Configuration handling
     56     void restoreFrom(const CParameterBlackboard* pFromBlackboard, uint32_t uiOffset);
     57     void saveTo(CParameterBlackboard* pToBlackboard, uint32_t uiOffset) const;
     58 
     59     // Serialization
     60     void serialize(CBinaryStream& binaryStream);
     61 private:
     62     CParameterBlackboard(const CParameterBlackboard&);
     63     CParameterBlackboard& operator=(const CParameterBlackboard&);
     64 
     65     uint8_t* _pucData;
     66     uint32_t _uiSize;
     67 };
     68 
     69