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41 lines
800 B
41 lines
800 B
7 years ago
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/*
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* Copyright (c) 2017 - present Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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#include <mutex>
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namespace basics {
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class StdLock {
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public:
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StdLock() {}
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void set_ok(StdLock* other) {
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std::lock(mutex_, other->mutex_);
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guarded = other->guarded;
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}
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int get_ok() {
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mutex_.lock();
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return guarded;
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}
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void set_bad(StdLock* other) {
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std::lock(mutex_, other->mutex_);
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not_guarded = other->not_guarded;
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}
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int get_bad() { return not_guarded; }
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private:
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int guarded;
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int not_guarded;
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std::mutex mutex_;
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};
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} // namespace basics
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