kubernetes/staging/src/k8s.io/kubectl/pkg/util/term/resizeevents.go

// monitorResizeEvents spawns a goroutine that waits for SIGWINCH signals (these indicate the
// terminal has resized). After receiving a SIGWINCH, this gets the terminal size and tries to send
// it to the resizeEvents channel. The goroutine stops when the stop channel is closed.
func monitorResizeEvents(fd uintptr, resizeEvents chan<- remotecommand.TerminalSize, stop chan struct{ … }