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/* |
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* Copyright 2016, |
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* Olivier Stasse, |
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* |
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* CNRS |
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* |
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*/ |
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/* -------------------------------------------------------------------------- */ |
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/* --- INCLUDES ------------------------------------------------------------- */ |
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/* -------------------------------------------------------------------------- */ |
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#ifndef _SOT_LOADER_HH_ |
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#define _SOT_LOADER_HH_ |
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// STL includes |
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#include <map> |
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// Dynamic Graph embeded python interpreter. |
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#include <dynamic-graph/python/interpreter.hh> |
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// Sot Framework includes |
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#include <sot/core/abstract-sot-external-interface.hh> |
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#include <sot/core/debug.hh> |
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#include <sot/core/device.hh> |
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namespace dynamicgraph { |
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namespace sot { |
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/** |
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* @brief This class is loading the control part of the Stack-Of-Tasks. |
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* - 1/ It loads dynamically the graph interface. |
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* - 2/ It loads the python interpreter. |
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* - 3/ It loads the Device entity C++ pointer inside the python interpreter. |
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* - 4/ It provides the user interface to the graph: |
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* - 4.1/ starts and stop the graph executtion. |
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* - 4.2/ run a python command/script inside the embeded python interpreter. |
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* - 4.3/ execute one iteration of the graph. |
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* |
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* In order to Use this class you need to provide a dynamic library containing |
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* an implementation of the AbstractSotExternalInterface class. |
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* |
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* Then you can either inherite from this class an initialize and use the |
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* sensors_in_ and control_values_ objects. |
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* Or you can create you own outside of this class. |
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* And then use the oneIteration to execute the graph. |
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*/ |
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class SotLoader { |
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protected: |
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/// \brief Check if the dynamic graph is running or not. |
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bool dynamic_graph_stopped_; |
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/// \brief The interface between the device and the robot driver. |
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AbstractSotExternalInterface *sot_external_interface_; |
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/// \brief Name of the dynamic library containing the |
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/// dgs::AbstractSotExternalInterface object. |
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std::string sot_dynamic_library_filename_; |
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/// \brief Handle on the SoT library. |
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void *sot_dynamic_library_; |
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/// \brief Embeded python interpreter. |
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python::Interpreter embeded_python_interpreter_; |
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/// \brief Map of sensor readings |
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std::map<std::string, SensorValues> sensors_in_; |
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/// \brief Map of control values |
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std::map<std::string, ControlValues> control_values_; |
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/// \brief Device entity created and loaded, so we deregister it as the Pool |
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/// is not responsible for it's life time. |
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std::string device_name_; |
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public: |
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/// \brief Default constructor. |
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SotLoader(); |
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/// \brief Default destructor. |
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~SotLoader(); |
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/// \brief Read user input to extract the path of the SoT dynamic library. |
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int parseOptions(int argc, char *argv[]); |
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/// \brief Prepare the SoT framework. |
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bool initialization(); |
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/// \brief Unload the library which handles the robot device. |
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void cleanUp(); |
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/// \brief Get Status of dg. |
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inline bool isDynamicGraphStopped() { return dynamic_graph_stopped_; } |
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/// \brief Get Status of dg. |
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inline void startDG() { dynamic_graph_stopped_ = false; } |
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/// \brief Get Status of dg. |
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inline void stopDG() { dynamic_graph_stopped_ = true; } |
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/// \brief Specify the name of the dynamic library. |
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inline void setDynamicLibraryName(std::string &afilename) { |
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sot_dynamic_library_filename_ = afilename; |
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} |
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/// \brief Run a python command inside the embeded python interpreter. |
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void runPythonCommand(const std::string &command, std::string &result, |
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std::string &out, std::string &err); |
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/// \brief Run a python script inside the embeded python interpreter. |
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inline void runPythonFile(std::string ifilename, std::string &err) { |
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embeded_python_interpreter_.runPythonFile(ifilename, err); |
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} |
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/// \brief Run a python script inside the embeded python interpreter. |
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inline void runPythonFile(std::string ifilename) { |
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embeded_python_interpreter_.runPythonFile(ifilename); |
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} |
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/// \brief Compute one iteration of control. |
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/// Basically executes fillSensors, the SoT and the readControl. |
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void oneIteration(std::map<std::string, SensorValues> &sensors_in, |
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std::map<std::string, ControlValues> &control_values); |
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/// \brief Load the Device entity in the python global scope. |
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void loadDeviceInPython(const std::string &device_name); |
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}; |
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} /* namespace sot */ |
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} /* namespace dynamicgraph */ |
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#endif /* _SOT_LOADER_HH_ */ |
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