Method wait

toys/condvar-struct/src/main.rs:19–26

(&self)

            }
        }
        fn wait(&self) {
            let mut started = self.lock.lock().unwrap();
            println!("start waiting!");
            while !*started {
                started = self.cvar.wait(started).unwrap();
            }
            println!("end waiting");
        }
        fn notify(&self) {
            let mut started = self.lock.lock().unwrap();
            println!("start notifying!");