}
			ignoreWrite = true
		}
	}

	if !ignoreWrite {
		if wr.isControl() {
			sc.queuedControlFrames++
			// For extra safety, detect wraparounds, which should not happen,
			// and pull the plug.
			if sc.queuedControlFrames < 0 {
				sc.conn.Close()
			}
		}
		sc.writeSched.Push(wr)
	}
	sc.scheduleFrameWrite()
}