54         std::lock_guard<decltype(mutex_)> lock(mutex_);
70         std::lock_guard<decltype(mutex_)> lock(mutex_);
77         std::lock_guard<decltype(mutex_)> lock(mutex_);  in Emplace()
86         std::lock_guard<decltype(mutex_)> lock(mutex_);
95         std::lock_guard<decltype(mutex_)> lock(mutex_);  in Emplace()
105         std::lock_guard<decltype(mutex_)> lock(mutex_);  in Find()
116         std::lock_guard<decltype(mutex_)> lock(mutex_);  in Contains()
123         std::lock_guard<decltype(mutex_)> lock(mutex_);  in InsertOrAssign()
130         std::lock_guard<decltype(mutex_)> lock(mutex_);  in Insert()
137         std::lock_guard<decltype(mutex_)> lock(mutex_);  in Erase()
143         std::lock_guard<decltype(mutex_)> lock(mutex_);  in Clear()
149         std::lock_guard<decltype(mutex_)> lock(mutex_);  in Empty()
155         std::lock_guard<decltype(mutex_)> lock(mutex_);  in Size()
166         std::lock_guard<decltype(mutex_)> lock(mutex_);  in EraseIf()
189         std::lock_guard<decltype(mutex_)> lock(mutex_);  in ForEach()
216         std::lock_guard<decltype(mutex_)> lock(mutex_);  in Compute()
237         std::lock_guard<decltype(mutex_)> lock(mutex_);  in ComputeIfPresent()
253         std::lock_guard<decltype(mutex_)> lock(mutex_);  in ComputeIfAbsent()
267         std::lock_guard<decltype(mutex_)> lock(mutex_);  in ComputeIfAbsent()
287         std::lock_guard<decltype(mutex_)> lock(mutex_);  in Steal()
293         std::lock_guard<decltype(mutex_)> lock(mutex_);  in Clone()
298     mutable std::recursive_mutex mutex_;