Re: [ros-users] Weird ros::ok() actionlib::SimpleActionClien…

Vijay,

On 4 févr. 2011, at 19:12, Vijay Pradeep wrote:

> Can you check what version of the common stack you are running?
>
> > roscd common
> > cat CMakeLists.txt
>
> You'll see something like rosbuild_make_distribution(1.x.x)

rosbuild_make_distribution(1.2.2)

felix@cturtle:/opt/ros/cturtle/stacks/common$ grep isServerConnected /opt/ros/cturtle/stacks/common/actionlib/include/actionlib/client/simple_action_client.h
felix@cturtle:/opt/ros/cturtle/stacks/common$


Compiling I get this:

pr2-action.cc:234: error: ‘class actionlib::SimpleActionClient<learning_actionlib::FibonacciAction_<std::allocator<void> > >’ has no member named ‘isServerConnected’

I can find isServerConnected in connection_monitor.h, but not in simple_action_client.h

felix@cturtle:/opt/ros/cturtle/stacks/common$ grep isServerConnected /opt/ros/cturtle/stacks/common/actionlib/include/actionlib/client/*.h
/opt/ros/cturtle/stacks/common/actionlib/include/actionlib/client/connection_monitor.h: bool isServerConnected();
felix@cturtle:/opt/ros/cturtle/stacks/common$



> isServerConnected was added in Common 1.2.0. If you have an up-to-date C-Turtle release, it should definitely be there.
>
> > should I also check that isServerConnected? before the waitForServer? or isServerConnected just similar to waitForServer but return immediately? in this case, it is probably better to use it in place of waitForServer.
>
> In the actual implementation, waitForServer actually repeatedly calls isServerConnected until the timeout is reached or the server connects. Thus, for your case, you should probably just use isServerConnected.

OK, I will use isServerConnected... as soon as I can find it ;-)

>
> Vijay
>
> On Fri, Feb 4, 2011 at 1:17 AM, Felix Ingrand <felix@laas.fr> wrote:
> Hi Vijay,
>
> On 3 févr. 2011, at 22:33, Vijay Pradeep wrote:
>
> > Hi Felix,
> >
> >
> > Waiting for Server:
> > Instead of calling waitForServer(), you can repeatedly call isServerConnected()
> > Refer to the docs: SimpleActionClient::isServerConnected()
>
>
> Is SimpleActionClient::isServerConnected() a recent addition? it does not seem to be define in my:
>
> /opt/ros/cturtle/stacks/common/actionlib/include/actionlib/client/simple_action_client.h
>
> while it is indeed in :
>
> http://www.ros.org/doc/api/actionlib/html/simple__action__client_8h_source.html
>
> Or am I including the wrong simple_action_client.h?
>

> PS: I am using the Ubuntu 10.4 VirtualBox appliance provided by WG, and which I regularly update.
> --
>     Felix
> The danger of science denial: http://tinyurl.com/yyg5sfd

>
>
>
> _______________________________________________
> ros-users mailing list
> ros-users@code.ros.org
> https://code.ros.org/mailman/listinfo/ros-users
>
>
>
> --
> Vijay Pradeep
> Systems Engineer
> Willow Garage, Inc.
> vpradeep@willowgarage.com
>
> _______________________________________________
> ros-users mailing list
> ros-users@code.ros.org
> https://code.ros.org/mailman/listinfo/ros-users

-- 
     Felix
You think you are making economical rational decisions...
http://tinyurl.com/kvu9ck