channel example

chan.go

package main

import (
	"fmt"
	"math/rand"
	"time"
)

func produce(c chan int) {
	// loop indefinitely
	for {
		// write a random number from 0 to 99 into the channel
		c <- rand.Intn(100)

		// sleep for 0 to 9 milliseconds
		time.Sleep(time.Millisecond * time.Duration(rand.Intn(10)))
	}
}

func main() {
	rand.Seed(time.Now().Unix())

	// create a channel for communicating ints across goroutines.
	c := make(chan int)

	// run the producer in a new goroutine
	// pass it the channel so that it knows where to send values
	go produce(c)

	// read values off of the channel and print them (forever)
	for i := range c {
		fmt.Println(i)
	}
}