Created
November 23, 2024 15:40
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Go binary that waits n seconds to exit after receiving SIGINT
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| package main | |
| import ( | |
| "fmt" | |
| "os" | |
| "os/signal" | |
| "strconv" | |
| "syscall" | |
| "time" | |
| ) | |
| func main() { | |
| if len(os.Args) != 2 { | |
| fmt.Fprintf(os.Stderr, "Needs an argument\n") | |
| os.Exit(1) | |
| } | |
| wait, err := strconv.Atoi(os.Args[1]) | |
| if err != nil { | |
| fmt.Fprintf(os.Stderr, "Error parsing %w\n", os.Args[1]) | |
| os.Exit(1) | |
| } | |
| sigs := make(chan os.Signal, 1) | |
| signal.Notify(sigs, syscall.SIGINT) | |
| done := make(chan bool, 1) | |
| go func() { | |
| <- sigs | |
| fmt.Printf("Recieved SIGINT, waiting %d seconds.\n", wait) | |
| time.Sleep(time.Duration(wait) * time.Second) | |
| done <- true | |
| }() | |
| fmt.Println("awaiting signal") | |
| <-done | |
| } |
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