Re: [Discuss-gnuradio] simultanuous receive and transmit on USRP2 in C++, maybe use threads

[Eric Blossom]

On Tue, Mar 09, 2010 at 02:34:32AM +0100, Martin DvH wrote:
> Hi All,
> 
> I am building an application where I simultanuously want to receive and
> transmit using the USRP2.
> Since I also need the timestamps, I implement this using C++.
> (Building my own filewriter class which extends usrp2::rx_nop_handler,
> like in rx_streaming_samples.cc)
> 
> Should I use threads to keep TX and RX from interfering with each other.
> With threads I could just start the RX thread and TX thread.
> If I don't use threads I have to interleave sending and receiving
> packets.
> 
> 
> Is there an example I could look at.
> 
> I now based my code on :
> usrp2/host/apps/rx_streaming_samples.cc
> and
> usrp2/host/apps/tx_samples.cc
> 
> I know gnuradio has its own support code for threads, but I couldn't
> find an easy example on how to use it.

Martin, 

We just build everything on top of boost::thread and
gruel::thread_group (boost bug fixes) .  It's pretty straight-forward.
The boost docs will give you the details.

Eric