What are some examples of condition variables in programming?

What are some examples of condition variables in programming?

Condition variables are synchronization primitives that enable threads to wait until a particular condition occurs. Examples include using condition variables in producer-consumer problems, where a consumer waits for a product to be available.

Can you explain how they work in a multi-threaded environment?

Sure! In a multi-threaded environment, a condition variable allows one or more threads to wait until they are notified by another thread that a condition has changed, typically using 'wait' and 'notify' methods.

What programming languages support condition variables?

Most modern programming languages like C++, Java, and Python support condition variables, often through their threading libraries.

Can you give a code example in Python?

Certainly! Here's a simple example using Python's threading module:

import threading

condition = threading.Condition()

def producer():
    with condition:
        print('Producing item...')
        condition.notify()  # Notify the consumer

def consumer():
    with condition:
        condition.wait()  # Wait for the producer
        print('Consuming item...')