UNCLASSIFIED
Gents,
I have set up our test system with an RCC worker (foo_generator) that
continuously generates data to its output port ("dataout").
The system is set up to either:
a) Attach an external port to dataout, which is read by the
application or
b) Create a second worker (foo_receiver) that accepts the data
through its input port ("datain").
In this case, there is no external port.
I.e:
[foo_generator] --(external port)--> <foo_application>
[foo_generator] --(dataout)--> [foo_receiver]
The difference is simply a parameter to determine the string used.
I have included the relevent code below, but in summary, a) always
generates a segmentation fault during the call to 'start', for the same
reasons I outlined in my previous email, i.e. the PORT_NOT_CONNECTED
error in OcpiRccWorker.cxx, while b) works fine.
No worker code is reached before the seg fault occurs, so I have not
included the start or run code here.
====== foo_generator.xml ======
<RccImplementation controloperations="start">
<xi:include href="foo_generator_spec.xml"/>
</RccImplementation>
====== foo_generator_spec.xml ======
<ComponentSpec Name="foo_generator">
<Properties>
<Property Name="numBuffers" type="ULong" Writable="true"/>
<Property Name="stopSending" type="Bool" Writable="true"/>
</Properties>
<DataInterfaceSpec Name="dataout" Producer="true">
<xi:include href="stream_protocol.xml"/>
</DataInterfaceSpec>
</ComponentSpec>
====== String used to create the system in OA::Application constructor -
for a) ======
std::string fooapp("<application>");
fooapp.append("<instance worker='foo_generator'>");
fooapp.append(" <property name='stopSending' value='0'/>");
fooapp.append("</instance>");
fooapp.append("<connection>"
" <external name='finaldata'/>"
" <port instance='foo_generator' name='dataout'/>"
"</connection>");
fooapp.append("</application>");
====== String used to create the system in OA::Application constructor -
for b) ======
std::string fooapp("<application>");
fooapp.append("<instance worker='foo_generator'>");
fooapp.append(" <property name='stopSending' value='0'/>");
fooapp.append("</instance>");
fooapp.append("<instance worker='foo_receiver'
selection='model=="RCC"'/>");
fooapp.append("<connection>"
" <port instance='foo_generator' name='dataout'/>"
" <port instance='foo_receiver' name='datain'/>"
"</connection>");
fooapp.append("</application>");
====== Text shown on error ======
Application established: containers, workers, connections all created
Communication with the application established
<<=== start called here ===>>
terminate called after throwing an instance of
'OCPI::Util::EmbeddedException'
Aborted
make: *** [run] Error 134
Nigel
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