gistfile1.txt

        task::spawn {|move lock2|
            let lock = arc::get(&lock2);
            (*lock).lock_cond {|c|
                c.wait();
            }
        }


// lock should be a & reference to one of these:
resource lock_and_signal(lock: rust_cond_lock) {
    rustrt::rust_destroy_cond_lock(lock);
}

More details:

impl methods for lock_and_signal {
    fn lock<T>(f: fn() -> T) -> T {
        rustrt::rust_lock_cond_lock(*self);
        let _r = unlock(*self);
        f()
    }

    fn lock_cond<T>(f: fn(condition) -> T) -> T {
        rustrt::rust_lock_cond_lock(*self);
        let _r = unlock(*self);
        f(condition_(*self))
    }
}

impl methods for condition {
    fn wait() {
        rustrt::rust_wait_cond_lock(*self);
    }

    fn signal() -> bool {
        rustrt::rust_signal_cond_lock(*self)
    }
}