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32 lines
629 B
32 lines
629 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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#include <map>
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namespace containers {
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struct A {
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int value;
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};
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struct B {
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void access_container_and_contents_ok(int key, int value) {
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int s = map.size();
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mutex_.lock();
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map[key].value = value;
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}
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private:
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std::map<int, A> map;
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std::mutex mutex_;
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};
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} // namespace containers
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