[Discuss-gnuradio] using control_loop in OOT module , AttributeError: 'module' object has no attribute

[mohammad nejati]

Hi ,
I want to use control_loop block in my custom cpp out of tree module ,
for start i'm trying to make some thing like pll_carriertracking_cc
when i add just control_loop to virtual public class in header file in
include folder .

I can compile and install module without problem but wen i try to
execute flow graph i got this error :

self.ashtum_fll_cc_1 = ashtum.fll_cc(6.28/100, .4, -.4)
AttributeError: 'module' object has no attribute 'fll_cc'

‌But when i remove "virtual public blocks::control_loop" line every
thing become ok and of course i can't use control_loop members but
myblock (fll_cc) run in flow graph without any problem .

This my header file fll_cc.h :

#ifndef INCLUDED_ASHTUM_FLL_CC_H
#define INCLUDED_ASHTUM_FLL_CC_H

#include <ashtum/api.h>
#include <gnuradio/sync_block.h>
#include <gnuradio/blocks/control_loop.h>


namespace gr {
  namespace ashtum {

    class ASHTUM_API fll_cc
      : virtual public sync_block,
        virtual public blocks::control_loop
    {
    public:
      typedef boost::shared_ptr<fll_cc> sptr;
      static sptr make(float loop_bw, float max_freq, float min_freq);
      virtual bool lock_detector(void) = 0;
      virtual bool squelch_enable(bool) = 0;
      virtual float set_lock_threshold(float) = 0;


    };

  } // namespace ashtum
} // namespace gr

#endif /* INCLUDED_ASHTUM_FLL_CC_H */