Using Popen to start a pipe and pass the input

GNU Radio
1

Hello All,

I am trying to use popen to open an application under a block.

This looks something like that:

fp = popen(command, “w”); //doing it in write mode

if(!fp){
#Handle the error
}

…

pclose(fp);

Now the thing is even if I am trying to track using (fp != NULL) it
still keep executing the command over and over. Any ideas on that? May
somebody can guide me through right way to use popen?

Also to pass the c++ output stream, std::cout will work, right?

Thanks

2

On Mon, Jul 29, 2013 at 4:02 AM, Shashank G. [email protected]
wrote:

}

Thanks

Hi Shashank,

I know you are working on GNU Radio for the GSoC, but this question
isn’t related to GNU Radio. You’ll be better off asking another forum
like Stack Overflow.

Tom

3

Apologies, I asked on Stack Overflow but posted here as well.

Thanks