signals _ golang

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Sometimes we'd like our Go programs to intelligently handle Unix signals. For example, we might want a server to gracefully shutdown when it receives a SIGTERM, or a command-line tool stop processing input if it receives a SIGINT. Here's how to handle signals in Go with channels

package mainimport (    "fmt"    "os"    "os/signal"    "syscall")func main() {    sigs := make(chan os.Signal, 1)    done := make(chan bool, 1)    signal.Notify(sigs, syscall.SIGINT, syscall.SIGTERM)    go func() {        sig := <-sigs        fmt.Println("")        fmt.Println(sig)        done <- true    }()    fmt.Println("awaiting signal")    <-done    fmt.Println("exiting")}

awaiting signalexit^Cinterruptexiting

總結 :

 　　1 : ......