How to organize communication between golang applications on the same machine?

Question

go

There are two applications.
It is necessary that one periodically checks whether the other is running (well, it also transmits some data).
As an option, I thought the web server and communicate through it, but it's cumbersome just for the sake of it.
Heard about signals. How to organize communication through signal?

Answer 1

unix socket
But if you use Windows, then only through tcp.
Here is my communication implementation https://github.com/v-grabko/Core/wiki/TcpClientServer

Answer 2

https://golang.org/pkg/net/rpc/

Answer 3

через сигналы можно, если одно приложение запустило другое. тогда тому предку, кто запустил, известнен pid запущенного потомка.
но это только сигналы управления.
не передача данных.