[Discuss-gnuradio] Storing temporary data in GNU Radio

[Nick Sukhov]

Greetings!

I need to implement following procedure in GNU Radio and I’m lost on how to do 
it. I want to split a stream of data into a vectors, than add up these vectors 
consequently for some time (1000 additions for instance) and then store the 
information into file. I wanted to design a block for that consequent addition, 
but I can’t find a standard way to create temporary storage (like an array) in 
a block so every time GNU Radio runs the block, I would have access to this 
storage and could change it. I could probably define a global variable and 
manually write it in the block, but that feels wrong and cannot be realized in 
GRC blocks alone. I also tried redirecting a stream from the output of the 
block to it’s input, but GNU Radio does not allow me to do that, and I don’t 
know if I can bypass it.

Do you know a nice way to design such block? I cannot simply store a lot of 
data in a file and process it later, because I’m planning to record a signal 
for days and I would definitely run out of memory.

Thank you!

Nick Sukhov