00001 /********************************************************************* 00002 * Software License Agreement (BSD License) 00003 * 00004 * Copyright (c) 2012, Willow Garage, Inc. 00005 * All rights reserved. 00006 * 00007 * Redistribution and use in source and binary forms, with or without 00008 * modification, are permitted provided that the following conditions 00009 * are met: 00010 * 00011 * * Redistributions of source code must retain the above copyright 00012 * notice, this list of conditions and the following disclaimer. 00013 * * Redistributions in binary form must reproduce the above 00014 * copyright notice, this list of conditions and the following 00015 * disclaimer in the documentation and/or other materials provided 00016 * with the distribution. 00017 * * Neither the name of Willow Garage nor the names of its 00018 * contributors may be used to endorse or promote products derived 00019 * from this software without specific prior written permission. 00020 * 00021 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 00022 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 00023 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 00024 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 00025 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 00026 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 00027 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 00028 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 00029 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 00030 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 00031 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 00032 * POSSIBILITY OF SUCH DAMAGE. 00033 *********************************************************************/ 00034 00035 /* Author: Ioan Sucan */ 00036 00037 #ifndef MOVEIT_BACKGROUND_PROCESSING_ 00038 #define MOVEIT_BACKGROUND_PROCESSING_ 00039 00040 #include <deque> 00041 #include <string> 00042 #include <boost/thread.hpp> 00043 #include <boost/function.hpp> 00044 #include <boost/scoped_ptr.hpp> 00045 #include <boost/noncopyable.hpp> 00046 00047 namespace moveit 00048 { 00052 namespace tools 00053 { 00057 class BackgroundProcessing : private boost::noncopyable 00058 { 00059 public: 00061 enum JobEvent 00062 { 00064 ADD, 00066 REMOVE, 00068 COMPLETE 00069 }; 00070 00073 typedef boost::function<void(JobEvent, const std::string&)> JobUpdateCallback; 00074 00076 typedef boost::function<void()> JobCallback; 00077 00079 BackgroundProcessing(); 00080 00082 ~BackgroundProcessing(); 00083 00085 void addJob(const JobCallback& job, const std::string& name); 00086 00088 std::size_t getJobCount() const; 00089 00091 void clear(); 00092 00094 void setJobUpdateEvent(const JobUpdateCallback& event); 00095 00097 void clearJobUpdateEvent(); 00098 00099 private: 00100 boost::scoped_ptr<boost::thread> processing_thread_; 00101 bool run_processing_thread_; 00102 00103 mutable boost::mutex action_lock_; 00104 boost::condition_variable new_action_condition_; 00105 std::deque<JobCallback> actions_; 00106 std::deque<std::string> action_names_; 00107 00108 JobUpdateCallback queue_change_event_; 00109 00110 bool processing_; 00111 00112 void processingThread(); 00113 }; 00114 } 00115 } 00116 00117 #endif