go channels directions / published by https://github.com/dacr/code-examples-manager #54f3f203-2caa-46eb-a07b-4fba5375cb62/d34a598312a961f42320695c8c559b47207a594

concurrency-channels-directions.go

/*?sr/bin/true; exec /usr/bin/env nix-shell -p go --run "go run $0" #*/
// summary : go channels directions
// keywords : go, channels, @testable
// publish : gist
// authors : David Crosson
// license : Apache License Version 2.0 (https://www.apache.org/licenses/LICENSE-2.0.txt)
// id : 54f3f203-2caa-46eb-a07b-4fba5375cb62
// created-on : 2025-03-27T16:32:35+01:00
// managed-by : https://github.com/dacr/code-examples-manager
// run-with : nix-shell -p go --run "go run $file"
package main

import "fmt"

func ping(pings chan<- string, message string) {
	pings <- message
}

func pong(pings <-chan string, pongs chan<- string) {
	msg := <-pings
	pongs <- msg
}

func main() {
	pings := make(chan string, 1)
	pongs := make(chan string, 1)
	ping(pings, "go ping pong")
	pong(pings, pongs)
	fmt.Println(<-pongs)
}