Determine the size of a pipe without calling read()

Question

I need a function called SizeOfPipe() which should return the size of a pipe - I only want to know how much data is in the pipe and not actually read data off t

Answer 1

You can wrap it in object with buffering that can be rewinded. This would be feasible only for small amounts of data.

One way to do this in C is to define stuct and wrap all functions operating on pipes for your struct.