[Discuss-gnuradio] How to stop GRC flowgraph after a defined time

[Priyanka]

Hello,

I am very new to GNURadio and I have made a FM radio receiver in which I 
am recording the data in a file sink.

But, I want to record the data for one millisecond(means i want to stop 
the flow graph after 1 millisecond). How can I run the execution of the 
flow graph for this specified time?

Any help would be appreciated. Thank you.

Priyanka