rt-rosserial/examples/service_server.cpp

/*
 * rosserial Service Server
 */

#include <rtthread.h>
#include <ros.h>
#include <std_msgs/String.h>
#include "port/Test.h"

static ros::NodeHandle  nh;

using rosserial_rtt::Test;

static int i;
static void callback(const Test::Request & req, Test::Response & res){
  if((i++)%2)
  {
    res.output = "hello";
  }
  else
  {
    res.output = "world";
  }
}

static ros::ServiceServer<Test::Request, Test::Response> server("test_srv", &callback);

static std_msgs::String str_msg;
static ros::Publisher chatter("chatter", &str_msg);

static char hello[13] = "hello world!";

static void rosserial_server_thread_entry(void *parameter)
{
    nh.initNode();
    nh.advertiseService(server);
    nh.advertise(chatter);

    while (1)
    {
        str_msg.data = hello;
        chatter.publish( &str_msg );
        nh.spinOnce();
        rt_thread_mdelay(10);
    }
}

static void rosserial_server_example(int argc,char *argv[])
{
    rt_thread_t thread = rt_thread_create("r_server", rosserial_server_thread_entry, RT_NULL, 1024, 25, 10);
    if(thread != RT_NULL)
    {
        rt_thread_startup(thread);
        rt_kprintf("[rosserial] New thread r_server\n");
    }
    else
    {
        rt_kprintf("[rosserial] Failed to create thread r_server\n");
    }
}
MSH_CMD_EXPORT(rosserial_server_example, roserial publish and subscribe with UART);

// If you are using Keil, you can ignore everything below

// This is required
// If you'd like to compile with scons which uses arm-none-eabi-gcc
// extern "C" void __cxa_pure_virtual()
// {
//     while (1);
//}

// Moreover, you need to add:
// CXXFLAGS = CFLAGS + ' -fno-rtti'
// in rtconfig.py for arm-none-eabi-gcc