Passing channels over channels to create a connection pool

pool.go

package main

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

type Request struct {}

func connect(trigger chan bool, ch chan (chan Request)) {
	for {
		conn := make(chan Request)
		// ...get a connection and set it up to communicate on 'conn'...
		ch <- conn
		<-trigger // block until signalled
	}
}

func main() {
	var pool []chan Request
	trigger := make(chan bool)
	ch := make(chan (chan Request))
	for i := 0; i < 3; i++ {
		go connect(trigger, ch)
	}
	go func() {
		for {
			if rand.Float32() > 0.5 {
				trigger <- true
			}
			time.Sleep(2 * time.Second)
		}
	}()
	for conn := range ch {
		pool = append(pool, conn)
		fmt.Println("Created connection.")
		fmt.Println(pool)
	}
}