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https://github.com/kidfromjupiter/nearby.git
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43 lines
1.4 KiB
C++
43 lines
1.4 KiB
C++
// Copyright 2023 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef PLATFORM_IMPL_LINUX_ATOMIC_UINT32_H_
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#define PLATFORM_IMPL_LINUX_ATOMIC_UINT32_H_
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#include "internal/platform/implementation/atomic_reference.h"
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#include <atomic>
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#include <cstdint>
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namespace nearby {
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namespace linux {
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// A boolean value that may be updated atomically.
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class AtomicUint32 : public api::AtomicUint32 {
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public:
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AtomicUint32(std::uint32_t initial_value) : atomic_uint_(initial_value) {}
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~AtomicUint32() override = default;
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// Atomically read and return current value.
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std::uint32_t Get() const override { return atomic_uint_; };
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// Atomically exchange original value with a new one. Return previous value.
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void Set(std::uint32_t value) override { atomic_uint_ = value; };
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private:
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std::atomic_bool atomic_uint_ = false;
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};
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} // namespace linux
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} // namespace nearby
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#endif
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