package daemon import ( "fmt" "os" "syscall" "github.com/Sirupsen/logrus" psignal "github.com/docker/docker/pkg/signal" "github.com/docker/docker/pkg/system" ) func setupDumpStackTrap() { // Windows does not support signals like *nix systems. So instead of // trapping on SIGUSR1 to dump stacks, we wait on a Win32 event to be // signaled. go func() { sa := syscall.SecurityAttributes{ Length: 0, } ev := "Global\\docker-daemon-" + fmt.Sprint(os.Getpid()) if h, _ := system.CreateEvent(&sa, false, false, ev); h != 0 { logrus.Debugf("Stackdump - waiting signal at %s", ev) for { syscall.WaitForSingleObject(h, syscall.INFINITE) psignal.DumpStacks() } } }() }