| /* |
| * 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 _DECAF_UTIL_CONCURRENT_POOLEDTHREAD_H_ |
| #define _DECAF_UTIL_CONCURRENT_POOLEDTHREAD_H_ |
| |
| #include <decaf/lang/Thread.h> |
| #include <decaf/util/concurrent/PooledThreadListener.h> |
| #include <decaf/util/logging/LoggerDefines.h> |
| #include <decaf/util/Config.h> |
| |
| #include <decaf/lang/Exception.h> |
| |
| namespace decaf{ |
| namespace util{ |
| namespace concurrent{ |
| |
| class ThreadPool; |
| |
| class DECAF_API PooledThread : public lang::Thread |
| { |
| private: |
| |
| // Is this thread currently processing something |
| bool busy; |
| |
| // Boolean flag indicating thread should stop |
| bool done; |
| |
| // Listener for Task related events |
| PooledThreadListener* listener; |
| |
| // The thread pool this Pooled Thread is Servicing |
| ThreadPool* pool; |
| |
| // Logger Init |
| LOGDECAF_DECLARE(logger) |
| |
| public: |
| |
| /** |
| * Constructor |
| * @param pool the parant ThreadPool object |
| */ |
| PooledThread( ThreadPool* pool ); |
| |
| virtual ~PooledThread(); |
| |
| /** |
| * Run Method for this object waits for something to be |
| * enqueued on the ThreadPool and then grabs it and calls |
| * its run method. |
| */ |
| virtual void run(); |
| |
| /** |
| * Stops the Thread, thread will complete its task if currently |
| * running one, and then die. Does not block. |
| * @throws Exception |
| */ |
| virtual void stop() throw ( lang::Exception ); |
| |
| /** |
| * Checks to see if the thread is busy, if busy it means |
| * that this thread has taken a task from the ThreadPool's |
| * queue and is processing it. |
| * @returns true if the Thread is busy |
| */ |
| virtual bool isBusy() { return busy; } |
| |
| /** |
| * Adds a listener to this <code>PooledThread</code> to be |
| * notified when this thread starts and completes a task. |
| * @param listener the listener to send notifications to. |
| */ |
| virtual void setPooledThreadListener( PooledThreadListener* listener ) |
| { |
| this->listener = listener; |
| } |
| |
| /** |
| * Removes a listener for this <code>PooledThread</code> to be |
| * notified when this thread starts and completes a task. |
| * @return a pointer to this thread's listener or NULL |
| */ |
| virtual PooledThreadListener* getPooledThreadListener() |
| { |
| return this->listener; |
| } |
| }; |
| |
| }}} |
| |
| #endif /*_DECAF_UTIL_CONCURRENT_POOLEDTHREAD_H_*/ |