| #pragma once |
| |
| #ifndef GEODE_READWRITELOCK_H_ |
| #define GEODE_READWRITELOCK_H_ |
| |
| /* |
| * 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. |
| */ |
| |
| #include <ace/RW_Thread_Mutex.h> |
| #include "Condition.hpp" |
| |
| namespace apache { |
| namespace geode { |
| namespace client { |
| class TimedTryWriteGuard { |
| public: |
| TimedTryWriteGuard(ACE_RW_Thread_Mutex& lock, uint32_t usec); |
| bool tryAcquireLock(uint32_t usec); |
| ~TimedTryWriteGuard() { |
| if (isAcquired_) lock_.release(); |
| } |
| bool isAcquired() const { return isAcquired_; } |
| |
| private: |
| ACE_RW_Thread_Mutex& lock_; |
| bool isAcquired_; |
| ACE_Recursive_Thread_Mutex mutex_; |
| Condition cond_; |
| }; |
| |
| class APACHE_GEODE_EXPORT ReadGuard { |
| public: |
| explicit ReadGuard(ACE_RW_Thread_Mutex& lock) : lock_(lock) { |
| lock_.acquire_read(); |
| } |
| |
| ~ReadGuard() { lock_.release(); } |
| bool isAcquired() { return true; } |
| |
| private: |
| ACE_RW_Thread_Mutex& lock_; |
| }; |
| |
| class WriteGuard { |
| public: |
| explicit WriteGuard(ACE_RW_Thread_Mutex& lock) : lock_(lock) { |
| lock_.acquire_write(); |
| } |
| |
| ~WriteGuard() { lock_.release(); } |
| |
| private: |
| ACE_RW_Thread_Mutex& lock_; |
| }; |
| |
| class TryReadGuard { |
| public: |
| TryReadGuard(ACE_RW_Thread_Mutex& lock, const volatile bool& exitCondition); |
| ~TryReadGuard() { |
| if (isAcquired_) lock_.release(); |
| } |
| bool isAcquired() const { return isAcquired_; } |
| |
| private: |
| ACE_RW_Thread_Mutex& lock_; |
| bool isAcquired_; |
| }; |
| |
| class TryWriteGuard { |
| public: |
| TryWriteGuard(ACE_RW_Thread_Mutex& lock, const volatile bool& exitCondition); |
| ~TryWriteGuard() { |
| if (isAcquired_) lock_.release(); |
| } |
| bool isAcquired() const { return isAcquired_; } |
| |
| private: |
| ACE_RW_Thread_Mutex& lock_; |
| bool isAcquired_; |
| }; |
| } // namespace client |
| } // namespace geode |
| } // namespace apache |
| |
| #endif // GEODE_READWRITELOCK_H_ |