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40 lines
1.0 KiB
C++
40 lines
1.0 KiB
C++
// Copyright (C) 2019-2020 Zilliz. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://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 distributed under the License
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// is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
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// or implied. See the License for the specific language governing permissions and limitations under the License.
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#pragma once
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#include <mutex>
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namespace milvus {
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template <typename T>
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class Value {
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public:
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const T&
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operator()() {
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std::lock_guard<std::mutex> lock(mutex_);
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return value_;
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}
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Value&
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operator=(T value) {
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std::lock_guard<std::mutex> lock(mutex_);
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value_ = value;
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return *this;
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}
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private:
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std::mutex mutex_;
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T value_;
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};
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} // namespace milvus
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