Message passing in Elixir processes - part 2

when terminal hangs waiting for a message in OTP

Yesterday I attended an Elixir meetup where they were demonstrating how we send a message and receive it using receive block. This demo was shown referring to Documentation. During demo I saw a screen which was hanged because no message received. To continue, presentor pressed ctrl + c twice and forcefully stopped the process and started iex again.

In this post we see more advance part of message passing. When terminal hangs waiting for message, how to send a message to that process.

This is my journey about what all I tried and the learnings.

example for other

hanged / waiting for a message

Now I started once again, keeping in mind I want to send message from another process.

So we have everything like before.

Let us try to send a message from another terminal.

received message to cookie from cake

Now let us again make it wait for messages

waiting for messages

sent message from Cake

This might be a little confusing, let me try to create a Video recording that will be more easy to understand.