mirror of
https://github.com/OpenSpace/OpenSpace.git
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98 lines
3.7 KiB
C++
98 lines
3.7 KiB
C++
/*****************************************************************************************
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* *
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* OpenSpace *
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* *
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* Copyright (c) 2014-2020 *
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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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#include <openspace/util/syncbuffer.h>
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#include <ghoul/misc/profiling.h>
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namespace openspace {
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SyncBuffer::SyncBuffer(size_t n)
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: _n(n)
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{
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_dataStream.resize(_n);
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}
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SyncBuffer::~SyncBuffer() {} // NOLINT
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void SyncBuffer::encode(const std::string& s) {
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ZoneScoped
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int32_t anticpatedBufferSize = _encodeOffset + (sizeof(char) * s.size())
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+ sizeof(int32_t);
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if (anticpatedBufferSize >= _n) {
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_dataStream.resize(anticpatedBufferSize);
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}
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int32_t length = static_cast<int32_t>(s.size() * sizeof(char));
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memcpy(
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_dataStream.data() + _encodeOffset,
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reinterpret_cast<const char*>(&length),
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sizeof(int32_t)
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);
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_encodeOffset += sizeof(int32_t);
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memcpy(_dataStream.data() + _encodeOffset, s.c_str(), length);
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_encodeOffset += length;
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}
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std::string SyncBuffer::decode() {
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ZoneScoped
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int32_t length;
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memcpy(
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reinterpret_cast<char*>(&length),
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_dataStream.data() + _decodeOffset,
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sizeof(int32_t)
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);
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std::vector<char> tmp(length + 1);
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_decodeOffset += sizeof(int32_t);
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memcpy(tmp.data(), _dataStream.data() + _decodeOffset, length);
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_decodeOffset += length;
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tmp[length] = '\0';
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std::string ret(tmp.data());
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return ret;
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}
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void SyncBuffer::decode(std::string& s) {
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s = decode();
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}
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void SyncBuffer::setData(std::vector<char> data) {
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_dataStream = std::move(data);
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}
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std::vector<char> SyncBuffer::data() {
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_dataStream.resize(_encodeOffset);
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return _dataStream;
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}
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void SyncBuffer::reset() {
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_dataStream.resize(_n);
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_encodeOffset = 0;
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_decodeOffset = 0;
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}
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} // namespace openspace
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