What Can I Use Besides usleep in a Modern POSIX Environment?

Question

I\'m fairly new to C but writing a small multithreaded application. I want to introduce a delay to a thread. I\'d been using \'usleep\' and the behavior is what I desire -

Answer 1

You are probably on a modern POSIX system:

POSIX.1-2008 removes the specification of usleep().

On my system (linux) there is a detailed explanation of the macros that must be set to get that function back. But you should just follow the advice that zvrba already gave, use nanosleep instead.