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I believe the issue here is that you're supplying the service name to advertiseService(..).

According to the code of that function, it only accepts a reference to a ServiceServer instance, similar to how you advertise(..) a Publisher or Subscriber (see here).

The prototype of advertiseService(..) is actually:

template<class MReq, class MRes, class ObjT>
bool ros::NodeHandle_<Hardware, MAX_SUBSCRIBERS, MAX_PUBLISHERS, INPUT_SIZE, OUTPUT_SIZE>::advertiseService(ros::ServiceServer<MReq, MRes, ObjT>&)

Note there is no char[] or std::string in there anywhere.

To initialise the service server the code should probably be something like:

#include <ros.h>
#include <Arduino.h>
#include <std_srvs/Empty.h>

// Create roscpp's interface for creating subscribers, publishers, etc
ros::NodeHandle n;

// Create a service server that takes nothing and returns nothing
void callback(std_srvs::Empty::Request &req, std_srvs::Empty::Response &res)
{
  // Simulate function running for a non-deterministic amount of time
  delay(random(5,70));
}

ros::ServiceServer<std_srvs::Empty::Request, std_srvs::Empty::Response> service("get_nothing", &callback);

void setup()
{
  // Initialize node
  n.initNode();
  n.advertiseService(service);
}

void loop()
{
  n.spinOnce();
  delay(1000);
}

Note the use of advertiseService(..) in the setup() function, and the declaration of service with the service name and the callback.

I believe the issue here is that you're supplying the service name to advertiseService(..).

According to the code of that function, it only accepts a reference to a ServiceServer instance, similar to how you advertise(..) a Publisher or Subscriber in rosserial (see here).

The prototype of advertiseService(..) is actually:

template<class MReq, class MRes, class ObjT>
bool ros::NodeHandle_<Hardware, MAX_SUBSCRIBERS, MAX_PUBLISHERS, INPUT_SIZE, OUTPUT_SIZE>::advertiseService(ros::ServiceServer<MReq, MRes, ObjT>&)

Note there is no char[] or std::string in there anywhere.

To initialise the service server the code should probably be something like:

#include <ros.h>
#include <Arduino.h>
#include <std_srvs/Empty.h>

// Create roscpp's interface for creating subscribers, publishers, etc
ros::NodeHandle n;

// Create a service server that takes nothing and returns nothing
void callback(std_srvs::Empty::Request &req, std_srvs::Empty::Response &res)
{
  // Simulate function running for a non-deterministic amount of time
  delay(random(5,70));
}

ros::ServiceServer<std_srvs::Empty::Request, std_srvs::Empty::Response> service("get_nothing", &callback);

void setup()
{
  // Initialize node
  n.initNode();
  n.advertiseService(service);
}

void loop()
{
  n.spinOnce();
  delay(1000);
}

Note the use of advertiseService(..) in the setup() function, and the declaration of service with the service name and the callback.