Method broadcast

sync2/example/before.go:33–41

(message string)

}

func (channel *ChannelBefore) broadcast(message string) {
	// channel.mu must be held
	for name, client := range channel.clients {
		n, err := client.Write([]byte(message))
		if err != nil || n != len(message) {
			channel.disconnect(name)
		}
	}
}