Go-CNS-talk-2018/simdemo/simdemo.go

package main

import (
	"fmt"
	"math/rand"
)

func RunSim(name string, steps int) <-chan int {

	spikechan := make(chan int)
	go func() {
		defer close(spikechan)
		for t := 0; t < steps; t++ {
			if rand.Float32() > 0.8 {
				spikechan <- t
			}
		}
		return
	}()

	return spikechan
}

func main() {

	a := RunSim("A", 100)
	b := RunSim("B", 100)
	c := RunSim("C", 100)

	for {
		select {
		case ta, ok := <-a:
			if ok {
				fmt.Printf("A spiked at %d\n", ta)
			} else {
				a = nil
			}
		case tb, ok := <-b:
			if ok {
				fmt.Printf("B spiked at %d\n", tb)
			} else {
				b = nil
			}
		case tc, ok := <-c:
			if ok {
				fmt.Printf("C spiked at %d\n", tc)
			} else {
				c = nil
			}
		}
		if a == nil && b == nil && c == nil {
			break
		}

	}
}