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| package main | |
| import ( | |
| "fmt" | |
| "time" | |
| ) | |
| func Mux(funcs []func(string)) chan string { | |
| ch := make(chan string) | |
| childrens := GetChannelsWriterForFuncs(funcs) | |
| go ChannelMux(ch, childrens) | |
| return ch | |
| } | |
| func GetChannelsWriterForFuncs(funcs []func(string)) []chan string { | |
| if len(funcs) == 0 { | |
| funcs = append(funcs, func(string) {}) | |
| } | |
| childrenChan := []chan string{} | |
| for _, fn := range funcs { | |
| childChan := make(chan string) | |
| childrenChan = append(childrenChan, childChan) | |
| go ReadChanWithFunc(childChan, fn) | |
| } | |
| return childrenChan | |
| } | |
| func ReadChanWithFunc(ch chan string, fn func(string)) { | |
| for elem := range ch { | |
| fn(elem) | |
| } | |
| fn("dying") | |
| } | |
| func ChannelMux(from chan string, to []chan string) { | |
| for elem := range from { | |
| fmt.Println("sending elem", elem) | |
| for _, c := range to { | |
| c <- elem | |
| } | |
| } | |
| fmt.Println("killing children") | |
| for _, c := range to { | |
| close(c) | |
| } | |
| } | |
| func main() { | |
| ch := Mux([]func(string){ | |
| func(s string) { | |
| fmt.Println("1", s) | |
| }, | |
| func(s string) { | |
| fmt.Println("2", s) | |
| }, | |
| }) | |
| for i := 0; i < 10; i++ { | |
| ch <- fmt.Sprintf("step %d", i) | |
| time.Sleep(time.Second) | |
| } | |
| close(ch) | |
| time.Sleep(time.Second) | |
| } |
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