Documentation for method
wait assembled from the following types:
Supply it is called on, and blocks execution until the either the supply is
done (in which case it evaluates to the final value that was emitted on the
Nil if not value was emitted) or
quit (in which case it will throw the exception that was passed to
my = Supplier.new;start.Supply.wait;say "Two seconds: done";
multi method wait( --> Nil )multi method wait( --> Nil )
Without any predicate, it waits on the condition variable itself; with a predicate, waits until the code returns a truish value.
my = 100;my ;my ;for ^
The condition we obtain from the
$l lock is awaited using a predicate, in this case, check if the counter is still zero. When it takes another value, the program flow continues in the next instruction.