os/view_count/view_count.cpp

View countdown messages coming from a port (paired with os/make_count.cpp example).

/*
 * Copyright (C) 2006-2020 Istituto Italiano di Tecnologia (IIT)
 * Copyright (C) 2006-2010 RobotCub Consortium
 * All rights reserved.
 *
 * This software may be modified and distributed under the terms of the
 * BSD-3-Clause license. See the accompanying LICENSE file for details.
 */
 
#include <yarp/os/Bottle.h>
#include <yarp/os/BufferedPort.h>
#include <yarp/os/Network.h>
 
#include <cstdio>
 
using yarp::os::Bottle;
using yarp::os::BufferedPort;
using yarp::os::Network;
 
int main(int argc, char* argv[])
{
    if (argc != 2) {
        return 1;
    }
    Network yarp;
 
    BufferedPort<Bottle> in;
    in.open(argv[1]);
 
    int count = 1;
    while (count > 0) {
        Bottle* msg = in.read();
        count = msg->get(1).asInt32();
        printf("at %d\n", count);
    }
 
    return 0;
}