What does poll() do with a timeout of 0?

Question

I\'m looking at the poll() man page, and it tells me the behavior of poll() when positive and negative values are passed in for the timeout parameter.

Answer 1

From the Ubuntu man pages:

The timeout argument specifies an upper limit on the time for which poll() will block, in milliseconds. Specifying a negative value in timeout means an infinite timeout.

Because there is no special case for 0, I would assume that poll() will block for 0 milliseconds.