[openrtm-users 01193] Re: Problem shutting down component when more then one connection exists

[Geoffrey Biggs]

Although it's Python, not C++, and hasn't been as extensively tested as
data ports, there is an example of making a service port connection in
the rtctree library and the rtcshell toolkit. Try using rtcon to make
the connections and see if you get the same error.

Geoff

On 17/04/10 04:25, Steffen Wittmeier wrote:
> Hi,
> 
> I have to add that the problem seems to appear only when I use our own
> component connection code. Manual connection in the system editor works.
> 
> Could you maybe provide some example code for corba port connection? In
> the examples I could only find example code for data port connection.
> 
> Thanks,
> Steffen Wittmeier
> 
> On 04/16/2010 04:53 PM, Steffen Wittmeier wrote:
>> Hi,
>>
>> I receive a seg-fault when calling cleanupComponents(). The problem only
>> occurs in the following setups (see also attached screenshot).
>>
>> If component A (here LogViewer) is destructed by calling exit() on the
>> component and cleanupComponents() on the manager (somehow
>> cleanupComponent(rtc) does not call the destructor?) and this component
>> A is connected to a port of component B (LogManager) which is turn
>> connected to a component C (EcceosModel) I receive the seg-fault.
>>
>> In contrast, if I remove the connection between component B and C and
>> call exit() on component A, the application exits normally.
>>
>> I attached a backtrace of the seg-fault. You can see that I am calling
>> cleanupComponents() that leads to the destructor call of the PortProfile
>> which causes the error.
>>
>> Is this some internal error where you could provide a fix for? As I
>> receive the same error when I exit the component A in the
>> RTSystemEditor, it seems that it is not a problem of the component
>> deletion within my code.
>>
>> Any help is appreciated...
>>
>>
>> Many thanks in advance,
>> Steffen Wittmeier
>>
>>
>> #0 0x00007ffff2129f3f in omni::releaseObjRef(omniObjRef*) () from
>> /usr/lib/libomniORB4.so.1
>> #1 0x00007ffff74aa18b in RTC::PortProfile::~PortProfile() () from
>> /usr/local/lib/libRTC-1.0.0.so.0
>> #2 0x00007ffff750e6e0 in RTC::PortBase::~PortBase() () from
>> /usr/local/lib/libRTC-1.0.0.so.0
>> #3 0x00007ffff74ef6f6 in RTC::CorbaPort::~CorbaPort() () from
>> /usr/local/lib/libRTC-1.0.0.so.0
>> #4 0x00007ffff5ec4f1c in ~LogViewer (this=0xbcdfb0, __in_chrg=<value
>> optimized out>, __vtt_parm=<value optimized out>)
>> at
>> /home/wittmeis/projects/eccerobot/workspaces/workspaceC++/gui ＠ src/src/er/gui/util/log/LogViewer.cpp:111
>>
>>
>> #5 0x00007ffff5ec9d6f in RTC::Delete<er::gui::util::log::LogViewer>
>> (rtc=0xbce080) at /usr/local/include/rtm/Factory.h:94
>> #6 0x00007ffff747e688 in RTC::FactoryCXX::destroy(RTC::RTObject_impl*)
>> () from /usr/local/lib/libRTC-1.0.0.so.0
>> #7 0x00007ffff748e027 in
>> RTC::Manager::deleteComponent(RTC::RTObject_impl*) () from
>> /usr/local/lib/libRTC-1.0.0.so.0
>> #8 0x00007ffff748e8a4 in RTC::Manager::cleanupComponents() () from
>> /usr/local/lib/libRTC-1.0.0.so.0
>> #9 0x00007ffff1a05e77 in coil::Timer::invoke() () from
>> /usr/local/stow/OpenRTM-aist-1.0.0/lib/libcoil.so.0
>> #10 0x00007ffff1a05ef8 in coil::Timer::svc() () from
>> /usr/local/stow/OpenRTM-aist-1.0.0/lib/libcoil.so.0
>> #11 0x00007ffff1a0a24a in coil::Task::svc_run(void*) () from
>> /usr/local/stow/OpenRTM-aist-1.0.0/lib/libcoil.so.0
>> #12 0x00007ffff240ca04 in start_thread (arg=<value optimized out>) at
>> pthread_create.c:300
>> #13 0x00007ffff270180d in clone () at
>> ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
>>
>>
>>
>