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39 lines
724 B
39 lines
724 B
4 years ago
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/*
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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#include <mutex>
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class Lambdas {
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public:
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void race_in_lambda_even_without_call_ok() {
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auto lambda_with_sync = [&]() {
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mutex_.lock();
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f = 0;
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mutex_.unlock();
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return f;
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};
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}
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// access propagation to callees does not currently work
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int FN_race_in_lambda_bad() {
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auto lambda_with_sync = [&]() { return g; };
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return lambda_with_sync();
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}
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void set_under_lock(int value) {
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mutex_.lock();
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g = value;
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mutex_.unlock();
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}
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private:
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int f;
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int g;
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std::mutex mutex_;
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};
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