Sleeping on a Fiber

Question Text

What happens if a fiber calls sleep()?

Question Answers

• the whole kernel-level thread is blocked

• only that fiber is blocked, and is scheduled out

• nothing, a fiber can’t sleep

• the whole process sleeps - regardless of how many threads there are

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The whole thread on which the fiber runs is blocked until the sleep() call is finished. For this reason, the fibers are best used with asynchronous operations, which you will explore in the following weeks.