mirror of
https://github.com/OpenSpace/OpenSpace.git
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80 lines
3.0 KiB
C++
80 lines
3.0 KiB
C++
/*****************************************************************************************
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* *
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* OpenSpace *
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* *
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* Copyright (c) 2014-2015 *
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* *
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* Permission is hereby granted, free of charge, to any person obtaining a copy of this *
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* software and associated documentation files (the "Software"), to deal in the Software *
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* without restriction, including without limitation the rights to use, copy, modify, *
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* merge, publish, distribute, sublicense, and/or sell copies of the Software, and to *
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* permit persons to whom the Software is furnished to do so, subject to the following *
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* conditions: *
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* *
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* The above copyright notice and this permission notice shall be included in all copies *
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* or substantial portions of the Software. *
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* *
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, *
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* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A *
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* PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT *
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF *
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* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE *
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* OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
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****************************************************************************************/
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#ifndef SYNCBUFFER_H
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#define SYNCBUFFER_H
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#include <vector>
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#include <sgct.h>
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namespace openspace {
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class SyncBuffer {
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public:
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SyncBuffer(size_t n);
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template<typename T>
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void encode(const T& v) {
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const size_t size = sizeof(T);
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assert(_encodeOffset + size < _n);
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memcpy(_dataStream.data() + _encodeOffset, &v, size);
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_encodeOffset += size;
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}
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template<typename T>
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T decode() {
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const size_t size = sizeof(T);
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assert(_decodeOffset + size < _n);
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T value;
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memcpy(&value, _dataStream.data() + _decodeOffset, size);
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_decodeOffset += size;
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return value;
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}
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template<typename T>
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void decode(T& value) {
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const size_t size = sizeof(T);
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assert(_decodeOffset + size < _n);
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memcpy(&value, _dataStream.data() + _decodeOffset, size);
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_decodeOffset += size;
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}
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void write();
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void read();
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private:
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size_t _n;
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size_t _encodeOffset;
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size_t _decodeOffset;
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std::vector<char> _dataStream;
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sgct::SharedVector<char> _synchronizationBuffer;
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};
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} // namespace openspace
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#endif // SYNCBUFFER_H
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