Thanks.
I did try to create a client inside the server. For some reason I thought
it didn’t work. But maybe I messed something up. I think it would
hang when I called tempclient.waitForServer().
Vijay: I
don’t want the server to be active on a null goal. I do want a
goal. I want to provide the goal from inside the client. This is to
simplify testing and debugging.
This is the
pattern I am looking for:
void MyActionServer::goalCallback()
{
// accept goal from client
goal_ = *server_.acceptNewGoal();
this->performAction(goal_);
}
void MyActionServer::triggerGoalInternallyCallback()
{
// create a goal for internal testing
MyActionServerGoal tempGoal;
tempGoal.foo = “bar”;
this->performAction(tempGoal);
}
However, I have
no performAction() method. And because the service routine uses a timer,
and relies on the server being active, it is not so easy to split out.
So, ideally,
I would have this:
void MyActionServer::triggerGoalInternallyCallback()
{
// create a goal for internal testing
MyActionServerGoal tempGoal;
tempGoal.foo = “bar”;
this->server_->setGoal(tempGoal);
}
Which would
then trigger the MyActionServer::goalCallback().
From:
ros-users-bounces@code.ros.org [mailto:ros-users-bounces@code.ros.org] On
Behalf Of Vijay Pradeep
Sent: Monday, October 18, 2010 1:21 PM
To: User discussions
Subject: Re: [ros-users] trigger goal from inside actionlib server
Hi Ben,
If this is what you want to do, I would go with Blaise's suggestion and send a
goal using the action client with no callbacks registered.
However, I'm not really sure why you would want to have the SimpleActionServer
be active on null goal. Understanding your use case would help us get a
feel for exactly what functionality you need.
Vijay
On Mon, Oct 18, 2010 at 9:44 AM, Blaise Gassend <blaise@willowgarage.com> wrote:
Hi Ben,
On Mon, Oct 18, 2010 at 9:06 AM, Axelrod, Benjamin <baxelrod@irobot.com> wrote:
> I have an actionlib server and I would like to be able to trigger its own
> goal. I don’t need any callbacks for goal accepted, feedback,
or even
> result. I just want to manually set the server to be active.
Is this
> possible? I can’t figure out a way to do this.
Why don't you use a SimpleActionClient to set the goal? If
you don't
specify the callbacks when setting you call sendGoal, those callbacks
default to being null. Is that not what you want?
http://www.ros.org/doc/api/actionlib/html/classactionlib_1_1SimpleActionClient.html#ae6a2e6904495e7c20c59e96af0d86801
> It might be nice if actionlib::SimpleActionServer::acceptNewGoal()
was
> overloaded to accept a goal parameter. That would set the server
active,
> but with NULL callbacks.
Is there a strong reason for wanting to do this without
explicitly
having a client?
Blaise
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Vijay Pradeep
Systems Engineer
Willow Garage, Inc.
vpradeep@willowgarage.com