Lecture 9B

Question 1

Describe Consumer-Producer scenario:

Answer 1

A thread called Producer provides data in a queue (called a buffer). Another thread (consumer) removed this data from the queue. On both sides the queue(buffer) is a gated resource.

Question 2

What does wait() do?

Answer 2

It suspends execution of the thread until it receives notification from some other thread. Signaling is done using notify() or notifyAll() in the other thread (producer).

Question 3

What are condition variables?

Answer 3

They allow a thread to block (suspend execution) until notified by another thread that a condition is fulfilled.