resolver.py 文件源码

def __init__(self, max_size=100000):
        """Initialize a DNS cache.

        @param max_size: The maximum number of nodes to cache; the default is
        100000. Must be > 1.
        @type max_size: int
        """
        self.data = {}
        self.set_max_size(max_size)
        self.sentinel = LRUCacheNode(None, None)
        self.lock = _threading.Lock()