58 lines
1.6 KiB
C++
58 lines
1.6 KiB
C++
/*
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* Copyright (c) Facebook, Inc. and its affiliates.
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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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* 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
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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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*/
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#pragma once
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#include <atomic>
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namespace folly {
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namespace detail {
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inline std::memory_order default_failure_memory_order(
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std::memory_order successMode) {
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switch (successMode) {
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case std::memory_order_acq_rel:
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return std::memory_order_acquire;
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case std::memory_order_release:
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return std::memory_order_relaxed;
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case std::memory_order_relaxed:
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case std::memory_order_consume:
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case std::memory_order_acquire:
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case std::memory_order_seq_cst:
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default:
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return successMode;
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}
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}
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inline char const* memory_order_to_str(std::memory_order mo) {
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switch (mo) {
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case std::memory_order_relaxed:
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return "relaxed";
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case std::memory_order_consume:
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return "consume";
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case std::memory_order_acquire:
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return "acquire";
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case std::memory_order_release:
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return "release";
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case std::memory_order_acq_rel:
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return "acq_rel";
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case std::memory_order_seq_cst:
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return "seq_cst";
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}
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}
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} // namespace detail
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} // namespace folly
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