// Drain blocks until all data written to the terminal fd are
// transmitted. See also tcdrain(3). If the system call is interrupted
// by a signal, Drain retries it automatically.
func Drain(fd int) error {
for {
r, err := C.tcdrain(C.int(fd))
if r < 0 {
if err == syscall.EINTR {
continue
}
return err
}
return nil
}
}
// Drain waits until all output written to the terminal
// referenced by fd has been transmitted to the terminal.
func Drain(fd uintptr) error {
//int tcdrain(int);
_, rv := C.tcdrain(C.int(fd))
return rv
}