Method available

datafusion/execution/src/memory_pool/arrow.rs:68–73

(&self)

    }

    fn available(&self) -> isize {
        // The pool may be overfilled, so this method might return a negative value.
        (self.capacity() as i128 - self.used() as i128)
            .try_into()
            .unwrap_or(isize::MIN)
    }

    fn used(&self) -> usize {
        self.inner.reserved()