It make sense.
Thank you for the quick response.

Arturo

Am 04.05.11 17:52, schrieb Peter Soetens:
> On Wed, May 4, 2011 at 4:56 PM, Arturo Reuschenbach
> <d2133087 [..] ...> wrote:
>> Hello,
>> I'm still trying to execute a command with the class RTT::CommandC like
>> this:
>>
>> RTT::TaskContext * task = findPeer(peer, refPeer);
>> if (task) {
>> RTT::CommandRepository * commandRepository = task->commands();
>> RTT::CommandC command(task->commands(), commandName);
>> float seekValue = 0.0;
> This line is the bug. The seekValue is created on the stack, and the
> command function will try to write that value, while it no longer
> exists during the execution. You need to make this variable a class
> member variable or make sure that it exists while the command is
> executed in the peer.
>
>> command.argC(seekValue);
>> command.execute();
>> }
>>
>> but I'm getting the following error:
>>
>> #0 0x00007fffd8556f60 in ?? ()
>> #1 0x00007ffff7879025 in RTT::CommandProcessor::step (this=0xf18c60)
>> at /home/robocup/build/orocos-rtt-1.12.1/src/CommandProcessor.cpp:85
>> #2 0x00007ffff785b1aa in RTT::ExecutionEngine::step (this=0xf189b0)
>>
>> at /home/robocup/build/orocos-rtt-1.12.1/src/ExecutionEngine.cpp:318
>> #3 0x00007ffff78feeee in RTT::TimerThread::step (this=0xf2bef0)
>> at /home/robocup/build/orocos-rtt-1.12.1/src/TimerThread.cpp:146
>> #4 0x00007ffff79349ec in RTT::OS::periodicThread (t=<value optimized out>)
>>
>> at /home/robocup/build/orocos-rtt-1.12.1/src/os/PeriodicThread.cpp:106
>> #5 0x00007fffee92a971 in start_thread () from /lib/libpthread.so.0
>> #6 0x00007fffeae9792d in clone () from /lib/libc.so.6
>> #7 0x0000000000000000 in ?? ()
>>
>> Someone guide me on how to use the "RTT::CommandC" or give me some example?
> The rest of your code is correct use.
>
> Peter

--
Arturo Reuschenbach
AG Künstliche Intelligenz,
Projekt AutoNOMOS, Wissenschaftlicher Mitarbeiter Cog.-Nav.-Lab

Freie Universität Berlin
Institut für Informatik
Arnimallee 7, Raum 011
14195 Berlin
Tel 0049 / 30 838 75117
Fax 0049 / 30 838 75059

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