On Wed, Sep 18, 2013 at 3:27 PM, NaceurElOuni <naceuram...@gmail.com> wrote: > Hi, > > I am developping some source code using a boost shared pointer > gr_message_sptr > which is retrieving from a queue (gr_msg_queue_sptr), > The issue is that when calling : > > gr_message_sptr mesg = queue->delete_head_nowait(); > > from within a while loop (BTW the queue itself is being passed from a thread > function to a subsequent function which process it), > > I got an error stated as: > > ... /usr/include/boost/smart_ptr/shared_ptr.hpp:424: T* > boost::shared_ptr<T>::operator->() const [with T = gr_message]: Assertion > `px != 0' failed. > Aborted (core dumped), > Even after googling the issue I got no clear explanation of am I doing wrong > or missing. > > All clarifications are welcome, thank you, > > Regards,
This is very little information to go on. But it looks like you aren't initializing your messages correctly. It's core dumping. Do a search for how to create a core dump file and read it with gdb; that can give you a lot more information about where and why things are breaking. -- Tom GRCon13 Oct. 1 - 4 http://www.trondeau.com/grcon13 _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
