Revision 0c8d22a5 src/server/server.cpp
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* Excellence Initiative. |
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*/ |
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#include "server/server.h" |
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#include "server/middleware_ros.h" |
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#include <boost/algorithm/string.hpp> |
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#include <string> |
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using namespace std;
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using namespace boost;
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using namespace humotion; |
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using namespace humotion::server;
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#include "humotion/server/middleware_ros.h"
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#include "humotion/server/server.h"
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using humotion::server::Server;
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//! set up constant for updaterate (50Hz) |
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const float Server::MOTION_UPDATERATE = 50.0; |
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//! constructor |
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//! open a new server instance. |
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Server::Server(string scope, string mw, JointInterface *_joint_interface){
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//convert mw to uppercase:
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to_upper(mw); |
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Server::Server(std::string scope, std::string mw, JointInterface *_joint_interface) {
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// convert mw to uppercase
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boost::to_upper(mw);
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printf("> initializing humotion server (on %s, middleware=%s)\n",scope.c_str(),mw.c_str());
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printf("> initializing humotion server (on %s, middleware=%s)\n", scope.c_str(), mw.c_str());
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//store pointer to joint interface |
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// store pointer to joint interface
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joint_interface = _joint_interface; |
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//tell joint interface our framerate:
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// tell joint interface our framerate
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joint_interface->set_framerate(MOTION_UPDATERATE); |
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//create controller |
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// create controller
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controller = new Controller(joint_interface); |
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controller->init_motion_generators(); |
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//start middleware:
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if (mw == "ROS"){
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// start middleware
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if (mw == "ROS") {
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middleware = new MiddlewareROS(scope, controller); |
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}else{
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printf("> ERROR: invalid mw '%s' given. RSB support was dropped. Please use ROS\n\n",mw.c_str());
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} else {
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printf("> ERROR: invalid mw '%s' given. RSB support was dropped. Please use ROS\n\n",
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mw.c_str()); |
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exit(EXIT_FAILURE); |
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} |
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//start motion generation thread:
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// start motion generation thread
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start_motion_generation_thread(); |
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} |
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//! destructor |
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Server::~Server(){
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Server::~Server() {
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} |
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//! middleware still running? |
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bool Server::ok(){
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bool Server::ok() {
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return middleware->ok(); |
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} |
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//! start main thread |
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void Server::start_motion_generation_thread(){
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motion_generation_thread_ptr = new boost::thread(boost::bind( &Server::motion_generation_thread, this)); |
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void Server::start_motion_generation_thread() {
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motion_generation_thread_ptr = new boost::thread(boost::bind( |
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&Server::motion_generation_thread, this)); |
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} |
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//! main thread that handles all data in/out |
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//! this thread will take care of gathering all input data and |
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//! then generate the output targets at a fixed rate of \sa MOTION_UPDATERATE |
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void Server::motion_generation_thread(){
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void Server::motion_generation_thread() {
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unsigned int incoming_data_count_invalid = 0; |
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printf("> started motion generation thread\n");
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//calculate loop delay:
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// calculate loop delay
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float loop_delay = 1000.0 / MOTION_UPDATERATE; |
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boost::system_time timeout = get_system_time() + posix_time::milliseconds(loop_delay); |
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printf("> one loop = %3.1fms\n",loop_delay);
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boost::system_time timeout = boost::get_system_time() + |
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boost::posix_time::milliseconds(loop_delay); |
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printf("> one loop = %3.1fms\n", loop_delay);
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//wait for incoming joint data:
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while (middleware->ok()){
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//mw tick |
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// wait for incoming joint data
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while (middleware->ok()) {
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// mw tick
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middleware->tick(); |
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unsigned int incoming_data_count = joint_interface->get_and_clear_incoming_position_count(); |
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if (incoming_data_count == 0){
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if (incoming_data_count == 0) {
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incoming_data_count_invalid++; |
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if (incoming_data_count_invalid >= MOTION_UPDATERATE){
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if (incoming_data_count_invalid >= MOTION_UPDATERATE) {
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printf("> waiting for valid incoming joint data (position+velocity)\n");
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incoming_data_count_invalid = 0; |
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} |
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}else{
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//fine, joint data is arriving, exit waiting loop |
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} else {
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// fine, joint data is arriving, exit waiting loop
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break; |
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} |
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thread::sleep(timeout); |
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timeout = get_system_time() + posix_time::milliseconds(loop_delay);
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boost::thread::sleep(timeout);
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timeout = boost::get_system_time() + boost::posix_time::milliseconds(loop_delay);
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} |
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printf("> joint data arrived, control loop active.\n");
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controller->set_activated(); |
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//fine, data is arriving, activate and run control loop:
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while (middleware->ok()){
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//mw tick |
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// fine, data is arriving, activate and run control loop
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while (middleware->ok()) {
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// mw tick
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middleware->tick(); |
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//do some logging:
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//controller->dump_angles(); |
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// do some logging
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// controller->dump_angles();
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//calculate all targets |
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// calculate all targets
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controller->calculate_targets(); |
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//publish data to joints |
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// publish data to joints
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controller->publish_targets(); |
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//finally execute the movement:
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// finally execute the movement
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joint_interface->execute_motion(); |
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//check if we received joint information in the last step:
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// check if we received joint information in the last step
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unsigned int incoming_data_count = joint_interface->get_and_clear_incoming_position_count(); |
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if (incoming_data_count == 0){
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//printf("> WARNING: no incoming joint data during the last iteration...\n");
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if (incoming_data_count == 0) {
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// printf("> WARNING: no incoming joint data during the last iteration...\n");
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incoming_data_count_invalid++; |
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if (incoming_data_count_invalid >= MOTION_UPDATERATE){
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if (incoming_data_count_invalid >= MOTION_UPDATERATE) {
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printf("> ERROR: no incoming joint data for >1 second -> will exit now\n");
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exit(EXIT_FAILURE); |
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} |
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}else{
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} else {
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incoming_data_count_invalid = 0; |
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} |
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thread::sleep(timeout); |
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timeout = get_system_time() + posix_time::milliseconds(loop_delay);
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boost::thread::sleep(timeout);
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timeout = boost::get_system_time() + boost::posix_time::milliseconds(loop_delay);
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} |
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printf("> motion generation thread exited.\n");
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