Using messages in Rust (with crossbeam) to send information between threads. This can be extremely useful for thread communication and data transfer, and avoids having to tangle with mutexes and thread synchronisation in general.
I've found it indispensable in building a multi-threaded MVC app.
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https://open.substack.com/pub/caveofprogramming/p/sending-messages-across-threads-in?r=4p4gjc&utm_campaign=post&utm_medium=web&showWelcomeOnShare=true