gardentech
48 lines
1.6 KiB
C++
48 lines
1.6 KiB
C++
//
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// The MIT License (MIT)
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//
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// Copyright (c) 2022 Livox. All rights reserved.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies 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
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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//
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#include "generate_seq.h"
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#include <cstdint>
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namespace livox {
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namespace lidar {
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uint32_t GenerateSeq::GetSeq() {
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static std::atomic<std::uint32_t> seq(1);
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uint32_t value = seq.load();
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uint32_t desired = 0;
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do {
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if (value == UINT16_MAX) {
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desired = 1;
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} else {
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desired = value + 1;
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}
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} while (!seq.compare_exchange_weak(value, desired));
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return desired;
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}
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} // namespace lidar
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} // namespace livox
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