simple_gc.h
Go to the documentation of this file.00001 /********************************************************************* 00002 * Software License Agreement (BSD License) 00003 * 00004 * Copyright (c) 2010, 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 the 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 #ifndef ROSRT_SIMPLE_GC_H 00036 #define ROSRT_SIMPLE_GC_H 00037 00038 #include "mwsr_queue.h" 00039 00040 #include <ros/atomic.h> 00041 #include <lockfree/object_pool.h> 00042 #include <boost/thread/thread.hpp> 00043 00044 namespace rosrt 00045 { 00046 00047 struct InitOptions; 00048 00049 namespace detail 00050 { 00051 00052 class SimpleGC 00053 { 00054 public: 00055 typedef void(*DeleteFunc)(void* pool); 00056 typedef bool(*IsDeletableFunc)(void* pool); 00057 00058 SimpleGC(const InitOptions& ops); 00059 ~SimpleGC(); 00060 00061 void add(void* pool, DeleteFunc deleter, IsDeletableFunc deletable); 00062 00063 private: 00064 void gcThread(); 00065 00066 volatile bool running_; 00067 00068 struct PoolGCItem 00069 { 00070 void* pool; 00071 DeleteFunc deleter; 00072 IsDeletableFunc is_deletable; 00073 }; 00074 00075 boost::thread pool_gc_thread_; 00076 MWSRQueue<PoolGCItem> pool_gc_queue_; 00077 float period_; 00078 }; 00079 00080 } // namespace detail 00081 } // namespace rosrt 00082 00083 #endif // ROSRT_SIMPLE_GC_H 00084 00085