dns :: resolver :: Cache :: Class Cache

Class Cache

object --+
         |
        Cache

Simple thread-safe DNS answer cache.

Instance Methods

[hide private]

__init__(self, cleaning_interval=300.0)
*cleaning_interval*, a ``float`` is the number of seconds between periodic cleanings.

source code

_maybe_clean(self)
Clean the cache if it's time to do so.

source code

get(self, key)
Get the answer associated with *key*.

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put(self, key, value)
Associate key and value in the cache.

source code

flush(self, key=None)
Flush the cache.

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Inherited from object: __delattr__, __format__, __getattribute__, __hash__, __new__, __reduce__, __reduce_ex__, __repr__, __setattr__, __sizeof__, __str__, __subclasshook__

Properties

[hide private]

Inherited from object: __class__

Method Details

[hide private]

init(self, cleaning_interval=300.0)
(Constructor)

source code

*cleaning_interval*, a ``float`` is the number of seconds between periodic cleanings.

Overrides: object.__init__

get(self, key)

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Get the answer associated with *key*.

Returns None if no answer is cached for the key.

*key*, a ``(dns.name.Name, int, int)`` tuple whose values are the query name, rdtype, and rdclass respectively.

Returns a ``dns.resolver.Answer`` or ``None``.

put(self, key, value)

source code

Associate key and value in the cache.

*key*, a ``(dns.name.Name, int, int)`` tuple whose values are the query name, rdtype, and rdclass respectively.

*value*, a ``dns.resolver.Answer``, the answer.

flush(self, key=None)

source code

Flush the cache.

If *key* is not ``None``, only that item is flushed. Otherwise the entire cache is flushed.

*key*, a ``(dns.name.Name, int, int)`` tuple whose values are the query name, rdtype, and rdclass respectively.

Class Cache

__init__(self, cleaning_interval=300.0) (Constructor)

get(self, key)

put(self, key, value)

flush(self, key=None)

init(self, cleaning_interval=300.0)
(Constructor)