C++ High Performance

Tasks

With futures and promises, we managed to get away from explicit locks and shared global data. Our code will benefit from using higher level abstractions when possible, especially when the code base grows. Here, we will go further and explore classes that make us have the futures and promises automatically set up for us. We will also see how we can get rid of the manual administration of threads and leave that to the library.

In many cases, we don't have any need for managing threads—instead, what we really need is to be able to execute a task asynchronously and have that task execute on its own concurrently with the rest of the program, and then eventually get the result or error communicated to the parts of the program that need it. ...