| /* |
| * Copyright (c) 2011-2014, Intel Corporation |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without modification, |
| * are permitted provided that the following conditions are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright notice, this |
| * list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright notice, |
| * this list of conditions and the following disclaimer in the documentation and/or |
| * other materials provided with the distribution. |
| * |
| * 3. Neither the name of the copyright holder nor the names of its contributors |
| * may be used to endorse or promote products derived from this software without |
| * specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR |
| * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON |
| * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| #pragma once |
| |
| #include "NonCopyable.hpp" |
| |
| #include <cstdint> |
| #include <string> |
| #include <vector> |
| |
| class CParameterBlackboard : private utility::NonCopyable |
| { |
| public: |
| // Size |
| void setSize(size_t size); |
| size_t getSize() const; |
| |
| // Single parameter access |
| void writeInteger(const void *pvSrcData, size_t size, size_t offset); |
| void readInteger(void *pvDstData, size_t size, size_t offset) const; |
| |
| void writeString(const std::string &input, size_t offset); |
| void readString(std::string &output, size_t offset) const; |
| |
| void writeBuffer(const void *pvSrcData, size_t size, size_t offset); |
| void readBuffer(void *pvDstData, size_t size, size_t offset) const; |
| |
| /** |
| * Raw write the blackboard memory. |
| * |
| * May be used to write a configurable element's settings |
| * |
| * @param[in] bytes the source data bytes vector. |
| * @param[in] offset the destination offset in the blackboard. |
| * |
| * Notes: |
| * - This function asserts that the input vector's size + the offset |
| * does not exceed the size of the blackboard istelf. |
| */ |
| void writeBytes(const std::vector<uint8_t> &bytes, size_t offset); |
| |
| /** |
| * Raw read the blackboard memory. |
| * |
| * May be used to read a configurable element's settings |
| * |
| * @param[out] bytes the destination data bytes vector. |
| * @param[in] offset the source offset in the blackboard. |
| * |
| * Notes: |
| * - This function asserts that the output vector's size + the offset |
| * does not exceed the size of the blackboard itself. |
| * - The user MUST resize the output vector to exactly the number of |
| * elements to be read |
| */ |
| void readBytes(std::vector<uint8_t> &bytes, size_t offset) const; |
| |
| // Access from/to subsystems |
| uint8_t *getLocation(size_t offset); |
| |
| // Configuration handling |
| void restoreFrom(const CParameterBlackboard *pFromBlackboard, size_t offset); |
| void saveTo(CParameterBlackboard *pToBlackboard, size_t offset) const; |
| |
| private: |
| void assertValidAccess(size_t offset, size_t size) const; |
| |
| using Blackboard = std::vector<uint8_t>; |
| Blackboard mBlackboard; |
| |
| Blackboard::iterator atOffset(size_t offset) { return begin(mBlackboard) + offset; } |
| Blackboard::const_iterator atOffset(size_t offset) const { return begin(mBlackboard) + offset; } |
| }; |