Method evict_entries

datafusion/execution/src/cache/list_files_cache.rs:270–283

Evicts entries from the LRU cache until `memory_used` is lower than `memory_limit`.

(&mut self)

    /// Evicts entries from the LRU cache until `memory_used` is lower than `memory_limit`.
    fn evict_entries(&mut self) {
        while self.memory_used > self.memory_limit {
            if let Some(removed) = self.lru_queue.pop() {
                self.memory_used -= removed.1.size_bytes;
            } else {
                // cache is empty while memory_used > memory_limit, cannot happen
                debug_assert!(
                    false,
                    "cache is empty while memory_used > memory_limit, cannot happen"
                );
                return;
            }
        }
    }

    /// Removes an entry from the cache and returns it, if it exists.
    fn remove(&mut self, k: &TableScopedPath) -> Option<CachedFileList> {