Re: [Discuss-gnuradio] Error in running a custom block

[Eric Blossom]

On Wed, Jun 24, 2009 at 12:10:29PM -0400, Mark Porter wrote:
> Hi all,
> 
> I have compiled a custom block for GNURadio, and it is not running properly.
> My error message below seems to indicate a problem with swig or something
> similar.


Did you define an out-of-line virtual destructor for your block?


> self.usrp is the usrp source, self.minmax is the custom block
> ###
> File "script.py", line 76, in <module>
>   tb = my_top_block()
> File "script.py", line 64, in __init__
>   self.connect (self.usrp, self.minmax, self.nullsink)
> File "/usr/lib/python2.6/site-packages/gnuradio/gr/top_block.py", line 99,
> in connect
>   self._connect(points[i-1],points[i])
> File
> "/usr/lib/python2.6/site-packages/gnuradio/gr/gnuradio_swig_py_runtime.py",
> line 1481, in connect
>      return _gnuradio_swig_py_runtime.gr_top_block_sptr_connect(self,*args)
> NotImplementedError: Wrong number of arguments for overloaded function
> 'gr_top_block_sptr_connect'.
>      Possible C/C++ prototypes are:
>          connect(boost::shared_ptr< gr_top_block > *, gr_basic_block_sptr)
>          connect(boost::shared_ptr< gr_top_block > *,
> gr_basic_block_sptr,int,gr_basic_block_sptr,int)
> 
> swig/python detected a memory leak of type 'gr_basic_block_sptr *', no
> destructor found.
> ###
> 
> Here's the kicker. The script works with a block compiled for an x86 PC.
> However the above error occurs with a block compiled for an ARM platform
> using openembedded and bitbake. It seems to compile just fine and I have put
> all the necessary files in the /usr/include and /usr/lib on the platform. I
> am looking at any input from this list as to where the problem might be...
> 
> Thanks
> 
> -- 
> Mark