Use std::condition_variable to Resolve the Producer-Consumer

The simplest version of the producer-consumer problem is where you have one process that produces data and another that consumes data, using one buffer or container to hold the data. This requires coordination between the producer and consumer to manage the buffer and prevent unwanted side effects.

How to do it

In this recipe, we consider a simple solution to the producer-consumer problem using std::condition_variable to coordinate the processes:

• We begin with some namespace and alias declarations for convenience: