package cmd_signal

import (
	"fmt"
	"gitee.com/qdmc/async_task_demon/log"
	"os"
	"os/signal"
	"runtime"
	"syscall"
)

/*
syscall.SIGHUP  hongup 挂断
syscall.SIGINT  interrupt  前台终止   ctrl+C
syscall.SIGQUIT quit
syscall.SIGKILL signal: killed  由kill -9
syscall.SIGTERM 进程自己结束,kill
syscall.SIGUSR1, syscall.SIGUSR2   用户指令,win下没有
*/
// ListenProcess  创建进程退出的监听
func listenProcess(f func(s os.Signal)) {
	ch := make(chan os.Signal)
	if runtime.GOOS == "linux" {
		//signal.Notify(ch, syscall.SIGHUP, syscall.SIGINT, syscall.SIGTERM, syscall.SIGQUIT, syscall.SIGUSR1, syscall.SIGUSR2)
		signal.Notify(ch, syscall.SIGHUP, syscall.SIGINT, syscall.SIGTERM, syscall.SIGQUIT)
	} else {
		signal.Notify(ch, syscall.SIGHUP, syscall.SIGINT, syscall.SIGTERM, syscall.SIGQUIT)
	}
	go func() {
		for sig := range ch {
			f(sig)
		}
	}()
}

func processExitHandle(s os.Signal) {
	// todo 进程退出业务
	fmt.Println("---------  ", s.String())
	log.Info(fmt.Sprintf("进程退出:%s", s.String()))
}

func StartListen() {
	listenProcess(processExitHandle)
}