| #pragma once |
| |
| #ifndef GEODE_INTQUEUE_H_ |
| #define GEODE_INTQUEUE_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 <deque> |
| #include <ace/ACE.h> |
| #include <ace/Condition_Recursive_Thread_Mutex.h> |
| #include <ace/Time_Value.h> |
| #include <ace/Guard_T.h> |
| #include <ace/Recursive_Thread_Mutex.h> |
| |
| namespace apache { |
| namespace geode { |
| namespace client { |
| |
| template <class T> |
| |
| class CPPCACHE_EXPORT IntQueue { |
| public: |
| IntQueue() : m_cond(m_mutex) {} |
| |
| ~IntQueue() { |
| ACE_Guard<ACE_Recursive_Thread_Mutex> _guard(m_mutex); |
| |
| while (m_queue.size() > 0) { |
| m_queue.pop_back(); |
| } |
| } |
| |
| /** wait usec time until notified */ |
| T get(long usec) { |
| ACE_Time_Value interval(usec / 1000000, usec % 1000000); |
| return getUntil(interval); |
| } |
| |
| T get() { |
| T mp = 0; |
| |
| getInternal(mp); |
| return mp; |
| } |
| |
| void put(T mp) { |
| ACE_Guard<ACE_Recursive_Thread_Mutex> _guard(m_mutex); |
| m_queue.push_front(mp); |
| m_cond.signal(); |
| } |
| |
| uint32_t size() { |
| ACE_Guard<ACE_Recursive_Thread_Mutex> _guard(m_mutex); |
| return static_cast<uint32_t>(m_queue.size()); |
| } |
| |
| void clear() { |
| ACE_Guard<ACE_Recursive_Thread_Mutex> _guard(m_mutex); |
| m_queue.clear(); |
| m_cond.signal(); |
| } |
| |
| bool empty() { return size() == 0; } |
| |
| private: |
| inline bool getInternal(T& val) { |
| ACE_Guard<ACE_Recursive_Thread_Mutex> _guard(m_mutex); |
| |
| if (m_queue.size() > 0) { |
| val = m_queue.back(); |
| m_queue.pop_back(); |
| return true; |
| } |
| |
| return false; |
| } |
| |
| T getUntil(const ACE_Time_Value& interval) { |
| T mp = 0; |
| bool found = getInternal(mp); |
| |
| if (!found) { |
| ACE_Time_Value stopAt(ACE_OS::gettimeofday()); |
| stopAt += interval; |
| |
| while (!found && ACE_OS::gettimeofday() < stopAt) { |
| ACE_Guard<ACE_Recursive_Thread_Mutex> _guard(m_mutex); |
| m_cond.wait(&stopAt); |
| if (m_queue.size() > 0) { |
| mp = m_queue.back(); |
| m_queue.pop_back(); |
| found = true; |
| } |
| } |
| } |
| return mp; |
| } |
| |
| typedef std::deque<T> LocalQueue; |
| LocalQueue m_queue; |
| ACE_Recursive_Thread_Mutex m_mutex; |
| ACE_Condition<ACE_Recursive_Thread_Mutex> m_cond; |
| }; |
| } // namespace client |
| } // namespace geode |
| } // namespace apache |
| |
| #endif // GEODE_INTQUEUE_H_ |