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

I don't think it is possible, isn't the point of a pipe to provide interprocess communication between the two ends (in one direction). If I'm correct in that assertion, the send may not yet have finished pushing data into the pipe -- so it'd be impossible to determine the length.

What platform are you using?