// +build !windows
 

 package daemon // import "github.com/docker/docker/daemon"

 
 import (
 	"os"
 	"os/signal"
 

 	stackdump "github.com/docker/docker/pkg/signal"

 	"github.com/sirupsen/logrus"

 	"golang.org/x/sys/unix"

 )
 

 func (d *Daemon) setupDumpStackTrap(root string) {

 	c := make(chan os.Signal, 1)

 	signal.Notify(c, unix.SIGUSR1)

 	go func() {
 		for range c {

 			path, err := stackdump.DumpStacks(root)
 			if err != nil {
 				logrus.WithError(err).Error("failed to write goroutines dump")

 			} else {
 				logrus.Infof("goroutine stacks written to %s", path)
 			}

 		}
 	}()
 }