Producer-consumer model
A producer-consumer model is a design that divides processing into small components that send messages to other components. One produces a message and the other consumes and acts on it. It provides an abstraction to easily implement an application optimized to utilize all the resources. A producer-consumer model starts with a queue of messages. Producers publish messages in this queue and consumers receive them. This queue is different from the queues we have studied so far in a few ways. We want this queue to be thread-safe, which is required for the queue to work correctly in a multithreaded environment. We do not need to worry about the exact order of the messages being dequeued. After all, the order of messages does not matter when they are being received by different threads. In these conditions, we optimize the delivery of the messages. Before implementing this queue, let's discuss a few thread synchronization techniques beyond what we have learned so...
