Method read

easy-fs/src/block_cache.rs:55–57

(&self, offset: usize, f: impl FnOnce(&T) -> V)

    }

    pub fn read<T, V>(&self, offset: usize, f: impl FnOnce(&T) -> V) -> V {
        f(self.get_ref(offset))
    }

    pub fn modify<T, V>(&mut self, offset: usize, f: impl FnOnce(&mut T) -> V) -> V {
        f(self.get_mut(offset))