| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| **/ |
| |
| #ifndef QUICKSTEP_THREADING_CPP11_CONDITION_VARIABLE_HPP_ |
| #define QUICKSTEP_THREADING_CPP11_CONDITION_VARIABLE_HPP_ |
| |
| #include <chrono> |
| #include <cstdint> |
| #include <condition_variable> // NOLINT(build/c++11) |
| #include <mutex> // NOLINT(build/c++11) |
| |
| #include "threading/ConditionVariable.hpp" |
| #include "utility/Macros.hpp" |
| |
| namespace quickstep { |
| |
| template <class InternalMutexType> class MutexImplCPP11; |
| |
| /** \addtogroup Threading |
| * @{ |
| */ |
| |
| /** |
| * @brief Implementation of ConditionVariable using C++11 threads. |
| **/ |
| template <typename InternalMutexType> |
| class ConditionVariableImplCPP11 { |
| public: |
| inline void await() { |
| internal_condition_var_.wait(*parent_mutex_); |
| } |
| |
| inline bool awaitWithTimeout(std::uint64_t milliseconds) { |
| std::cv_status status = internal_condition_var_.wait_for(*parent_mutex_, |
| std::chrono::milliseconds(milliseconds)); |
| return std::cv_status::no_timeout == status; |
| } |
| |
| inline void signalOne() { |
| internal_condition_var_.notify_one(); |
| } |
| |
| inline void signalAll() { |
| internal_condition_var_.notify_all(); |
| } |
| |
| private: |
| explicit ConditionVariableImplCPP11(InternalMutexType *parent_mutex) |
| : parent_mutex_(parent_mutex) { |
| } |
| |
| InternalMutexType *parent_mutex_; |
| std::condition_variable_any internal_condition_var_; |
| |
| friend class MutexImplCPP11<std::mutex>; |
| friend class MutexImplCPP11<std::recursive_mutex>; |
| |
| DISALLOW_COPY_AND_ASSIGN(ConditionVariableImplCPP11); |
| }; |
| typedef ConditionVariableImplCPP11<std::mutex> ConditionVariable; |
| |
| /** @} */ |
| |
| } // namespace quickstep |
| |
| #endif // QUICKSTEP_THREADING_CPP11_CONDITION_VARIABLE_HPP_ |