ex0300_port_callback.cpp

/*
 * SPDX-FileCopyrightText: 2006-2021 Istituto Italiano di Tecnologia (IIT)
 * SPDX-FileCopyrightText: 2006-2010 RobotCub Consortium
 * SPDX-License-Identifier: BSD-3-Clause
 */

#include <stdio.h>
#include <yarp/os/all.h>
using namespace yarp::os;

class DataProcessor : public PortReader {
     virtual bool read(ConnectionReader& connection) {
          Bottle b;
          b.read(connection);
          // process data in b
          printf("Got %s\n", b.toString().c_str());
          return true;
     }
};
DataProcessor processor;

int main() {
    Network yarp;

    Port p;            // Create a port.
    p.open("/in");     // Give it a name on the network.
    p.setReader(processor);  // no need to call p.read() on port any more.

    while (true) {
        printf("main thread free to do whatever it wants\n");
        Time::delay(10);
    }

    return 0;
}