A Simple Process
Explore how to create simple concurrent processes in Elixir using the spawn function. Understand sending and receiving messages between processes, handling multiple messages with recursion, and how Elixir manages process execution efficiently through tail-call optimization. This lesson helps you grasp Elixir's actor model for safe and robust concurrent programming.
We'll cover the following...
One of Elixir’s key features is the idea of packaging code into small chunks that can be run independently and concurrently.
Concurrent programming is known to be difficult, and there’s a performance penalty to pay when we create lots of processes.
Elixir doesn’t have these issues, thanks to the architecture of the Erlang VM on which it runs. Elixir uses the actor model of concurrency. An actor is an independent process that shares nothing with any other process. We can spawn new processes, send them messages, and receive messages back. And that’s it.
In the past, we may have had to use threads or operating system processes to achieve concurrency. Each time, it might’ve felt very risky. There was so much that could go wrong. But that worry just evaporates in Elixir. In fact, Elixir developers are so ...