| /** |
| * 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_WINDOWS_MUTEX_HPP_ |
| #define QUICKSTEP_THREADING_WINDOWS_MUTEX_HPP_ |
| |
| #include "threading/Mutex.hpp" |
| #include "threading/WinThreadsAPI.hpp" |
| #include "threading/windows/ConditionVariable.hpp" |
| #include "utility/Macros.hpp" |
| #include "utility/PtrVector.hpp" |
| |
| #include "glog/logging.h" |
| |
| namespace quickstep { |
| |
| /** \addtogroup Threading |
| * @{ |
| */ |
| |
| /** |
| * @brief Implementation of RecursiveMutex using MS Windows threads. |
| **/ |
| class RecursiveMutexImplWindows { |
| public: |
| RecursiveMutexImplWindows() { |
| InitializeCriticalSection(&critical_section_); |
| } |
| |
| ~RecursiveMutexImplWindows() { |
| DeleteCriticalSection(&critical_section_); |
| } |
| |
| inline void lock() { |
| EnterCriticalSection(&critical_section_); |
| } |
| |
| inline void unlock() { |
| LeaveCriticalSection(&critical_section_); |
| } |
| |
| ConditionVariable* createConditionVariable() { |
| ConditionVariable *new_condition = new ConditionVariable(&critical_section_); |
| condition_vars_.push_back(new_condition); |
| return new_condition; |
| } |
| |
| private: |
| CRITICAL_SECTION critical_section_; |
| PtrVector<ConditionVariable> condition_vars_; |
| |
| DISALLOW_COPY_AND_ASSIGN(RecursiveMutexImplWindows); |
| }; |
| typedef RecursiveMutexImplWindows RecursiveMutex; |
| |
| // For debug builds, use an implementation which actually prevents recursive |
| // locking. For release builds, don't bother (it's faster). |
| #ifdef QUICKSTEP_DEBUG |
| /** |
| * @brief Implementation of Mutex using MS Windows threads. |
| **/ |
| class MutexImplWindows { |
| public: |
| MutexImplWindows() |
| : held_(false) { |
| } |
| |
| ~MutexImplWindows() { |
| } |
| |
| inline void lock() { |
| internal_mutex_.lock(); |
| DCHECK(!held_); |
| held_ = true; |
| } |
| |
| inline void unlock() { |
| DCHECK(held_); |
| held_ = false; |
| internal_mutex_.unlock(); |
| } |
| |
| ConditionVariableImplWindows* createConditionVariable() { |
| return internal_mutex_.createConditionVariable(); |
| } |
| |
| private: |
| RecursiveMutexImplWindows internal_mutex_; |
| bool held_; |
| |
| DISALLOW_COPY_AND_ASSIGN(MutexImplWindows); |
| }; |
| typedef MutexImplWindows Mutex; |
| #else |
| typedef RecursiveMutexImplWindows Mutex; |
| #endif |
| |
| /** @} */ |
| |
| } // namespace quickstep |
| |
| #endif // QUICKSTEP_THREADING_WINDOWS_MUTEX_HPP_ |