Orocos Real-Time Toolkit
2.6.0
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00001 /*************************************************************************** 00002 tag: Peter Soetens Wed Jan 18 14:11:40 CET 2006 ExecutionEngine.hpp 00003 00004 ExecutionEngine.hpp - description 00005 ------------------- 00006 begin : Wed January 18 2006 00007 copyright : (C) 2006 Peter Soetens 00008 email : peter.soetens@mech.kuleuven.be 00009 00010 *************************************************************************** 00011 * This library is free software; you can redistribute it and/or * 00012 * modify it under the terms of the GNU General Public * 00013 * License as published by the Free Software Foundation; * 00014 * version 2 of the License. * 00015 * * 00016 * As a special exception, you may use this file as part of a free * 00017 * software library without restriction. Specifically, if other files * 00018 * instantiate templates or use macros or inline functions from this * 00019 * file, or you compile this file and link it with other files to * 00020 * produce an executable, this file does not by itself cause the * 00021 * resulting executable to be covered by the GNU General Public * 00022 * License. This exception does not however invalidate any other * 00023 * reasons why the executable file might be covered by the GNU General * 00024 * Public License. * 00025 * * 00026 * This library is distributed in the hope that it will be useful, * 00027 * but WITHOUT ANY WARRANTY; without even the implied warranty of * 00028 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * 00029 * Lesser General Public License for more details. * 00030 * * 00031 * You should have received a copy of the GNU General Public * 00032 * License along with this library; if not, write to the Free Software * 00033 * Foundation, Inc., 59 Temple Place, * 00034 * Suite 330, Boston, MA 02111-1307 USA * 00035 * * 00036 ***************************************************************************/ 00037 00038 00039 #ifndef ORO_EXECUTION_ENGINE_HPP 00040 #define ORO_EXECUTION_ENGINE_HPP 00041 00042 #include "os/Mutex.hpp" 00043 #include "os/MutexLock.hpp" 00044 #include "os/Condition.hpp" 00045 #include "base/RunnableInterface.hpp" 00046 #include "base/ActivityInterface.hpp" 00047 #include "base/DisposableInterface.hpp" 00048 #include "base/ExecutableInterface.hpp" 00049 #include "internal/List.hpp" 00050 #include <vector> 00051 #include <boost/function.hpp> 00052 00053 #include "rtt-config.h" 00054 #include "internal/rtt-internal-fwd.hpp" 00055 00056 namespace RTT 00057 { 00058 00077 class RTT_API ExecutionEngine 00078 : public base::RunnableInterface 00079 { 00080 public: 00087 ExecutionEngine( base::TaskCore* owner = 0); 00088 00089 ~ExecutionEngine(); 00090 00094 base::TaskCore* getParent(); 00095 00099 virtual void addChild(base::TaskCore* tc); 00100 00104 virtual void removeChild(base::TaskCore* tc); 00105 00109 base::TaskCore* getTaskCore() const { return taskc; } 00110 00122 virtual bool process(base::DisposableInterface* c); 00123 00132 virtual bool runFunction(base::ExecutableInterface* f); 00133 00139 virtual bool removeFunction(base::ExecutableInterface* f); 00140 00146 virtual bool removeSelfFunction(base::ExecutableInterface* f); 00147 00157 void waitForMessages(const boost::function<bool(void)>& pred); 00158 00168 void waitForFunctions(const boost::function<bool(void)>& pred); 00169 00178 bool stopTask(base::TaskCore* task); 00179 00180 00184 void setExceptionTask(); 00185 protected: 00199 void waitForMessagesInternal( boost::function<bool(void)> const& pred); 00200 00213 void waitAndProcessMessages(boost::function<bool(void)> const& pred); 00214 00227 void waitAndProcessFunctions(boost::function<bool(void)> const& pred); 00228 00232 base::TaskCore* taskc; 00233 00237 internal::MWSRQueue<base::DisposableInterface*>* mqueue; 00238 00239 std::vector<base::TaskCore*> children; 00240 00244 internal::MWSRQueue<base::ExecutableInterface*>* f_queue; 00245 00246 os::Mutex msg_lock; 00247 os::Condition msg_cond; 00248 00249 void processMessages(); 00250 void processFunctions(); 00251 void processChildren(); 00252 00253 virtual bool initialize(); 00254 00259 virtual void step(); 00260 00261 virtual bool breakLoop(); 00262 00263 virtual void finalize(); 00264 00265 virtual bool hasWork(); 00266 00267 }; 00268 00269 } 00270 #endif