| #pragma once |
| |
| #ifndef GEODE_THREADPOOL_H_ |
| #define GEODE_THREADPOOL_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. |
| */ |
| /* |
| * ThreadPool.hpp |
| * |
| * Created on: 16-Mar-2010 |
| * Author: ankurs |
| */ |
| |
| #include <ace/Method_Request.h> |
| #include <ace/Task.h> |
| //#include <ace/Future.h> |
| #include <condition_variable> |
| #include <mutex> |
| |
| #include <ace/Activation_Queue.h> |
| #include <ace/Condition_T.h> |
| #include <ace/Guard_T.h> |
| #include <ace/Singleton.h> |
| namespace apache { |
| namespace geode { |
| namespace client { |
| |
| template <class T> |
| class PooledWork : public ACE_Method_Request { |
| private: |
| T m_retVal; |
| std::recursive_mutex m_mutex; |
| std::condition_variable_any m_cond; |
| bool m_done; |
| |
| public: |
| PooledWork() : m_mutex(), m_cond(), m_done(false) {} |
| |
| virtual ~PooledWork() {} |
| |
| virtual int call(void) { |
| T res = execute(); |
| |
| std::lock_guard<decltype(m_mutex)> lock(m_mutex); |
| |
| m_retVal = res; |
| m_done = true; |
| m_cond.notify_all(); |
| |
| return 0; |
| } |
| |
| T getResult(void) { |
| std::unique_lock<decltype(m_mutex)> lock(m_mutex); |
| |
| while (!m_done) { |
| m_cond.wait(lock, [this] { return m_done; }); |
| } |
| |
| return m_retVal; |
| } |
| |
| protected: |
| virtual T execute(void) = 0; |
| }; |
| |
| template <typename S, typename R = int> |
| class PooledWorkFP : public PooledWork<R> { |
| public: |
| typedef R (S::*OPERATION)(void); |
| PooledWorkFP(S* op_handler, OPERATION op) |
| : op_handler_(op_handler), m_op(op) {} |
| virtual ~PooledWorkFP() {} |
| |
| protected: |
| virtual R execute(void) { return (this->op_handler_->*m_op)(); } |
| |
| private: |
| S* op_handler_; |
| OPERATION m_op; |
| }; |
| |
| class ThreadPoolWorker; |
| |
| class IThreadPool { |
| public: |
| virtual int returnToWork(ThreadPoolWorker* worker) = 0; |
| virtual ~IThreadPool() {} |
| }; |
| |
| class ThreadPoolWorker : public ACE_Task<ACE_MT_SYNCH> { |
| public: |
| explicit ThreadPoolWorker(IThreadPool* manager); |
| virtual ~ThreadPoolWorker(); |
| int perform(ACE_Method_Request* req); |
| int shutDown(void); |
| |
| virtual int svc(void); |
| ACE_thread_t threadId(void); |
| |
| private: |
| IThreadPool* manager_; |
| ACE_thread_t threadId_; |
| ACE_Activation_Queue queue_; |
| int shutdown_; |
| }; |
| |
| class ThreadPool : public ACE_Task_Base, IThreadPool { |
| friend class ACE_Singleton<ThreadPool, ACE_Recursive_Thread_Mutex>; |
| |
| public: |
| explicit ThreadPool(uint32_t threadPoolSize); |
| virtual ~ThreadPool(); |
| int perform(ACE_Method_Request* req); |
| int svc(void); |
| int shutDown(void); |
| virtual int returnToWork(ThreadPoolWorker* worker); |
| |
| private: |
| ThreadPoolWorker* chooseWorker(void); |
| int createWorkerPool(void); |
| int done(void); |
| ACE_thread_t threadId(ThreadPoolWorker* worker); |
| |
| private: |
| int poolSize_; |
| int shutdown_; |
| ACE_Thread_Mutex workersLock_; |
| ACE_Condition<ACE_Thread_Mutex> workersCond_; |
| ACE_Unbounded_Queue<ThreadPoolWorker*> workers_; |
| ACE_Activation_Queue queue_; |
| static const char* NC_Pool_Thread; |
| }; |
| } // namespace client |
| } // namespace geode |
| } // namespace apache |
| |
| #endif // GEODE_THREADPOOL_H_ |