[Rock-dev] Asynchronous method to write on InputPorts

[Alexander Duda]

On 05/21/2014 01:29 PM, Javier Hidalgo Carrió wrote:
> Hi,
>
> I am trying to write information in an Input port using the
> Orocos::Async interface in ruby.
> My question is how to access to an Input port in an asynchronous manner,
> in a similar way when using the "blocking/non-async" method.
>
> I am trying the following
>
> locomotion_control = Orocos::Async.proxy 'locomotion_control'
> locomotion_control.on_reachable do
>                   motion_cmd = Types::Base::Commands::Motion2D.new
>                   motion_cmd.translation = translation
>                   motion_cmd.rotation =  rotation
>                   port = locomotion_control.port('motion_command')
>                   port.write(motion_cmd)
> end
>
> But the write method is expecting another type. Does anyone know how to
> do it?
> the write method expect something like:
>
>    def write(sample,&block)
>               if block
>       [...]
> end
port.write(sample) do |result,error|
     puts "could not send sample" if error
end

port.write(sample) do |result|
     # will only be called if sample was sent
end

Alex
>
>
> Thanks,
>
> Javier.
>
> _______________________________________________
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> Rock-dev at dfki.de
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Dipl.-Ing. Alexander Duda
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