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

There is no portable way to tell the amount of data coming from a pipe. The only thing you could do is to read and process data as it comes.

For that you could use something like a circular buffer