volatility.cache.CacheDecorator Class Reference

This decorator will memoise a function in the cache. More...

Inheritance diagram for volatility.cache.CacheDecorator:

Public Member Functions
def	__init__ (self, path)
	Wraps a function in a cache decorator. More...
def	generate (self, path, g)
	Special handling for generators. More...
def	dump (self, path, payload)
def	__call__ (self, f)

Public Attributes
	path
	node
	See if the path is callable: More...

Detailed Description

This decorator will memoise a function in the cache.

Constructor & Destructor Documentation

def volatility.cache.CacheDecorator.__init__	(		self,
			path
	)

Wraps a function in a cache decorator.

The results of the function will be cached and memoised. Further calls to the function will retrieve the result from the cache. Cached objects are stored with the specified path as a key.

Args: path: Key for storage into the cache. If this is callable, it will be called with the function's args and is expected to return a string which will be used as a path.

Returns: A decorator.

Example: Suppose the calculate function is decorated:

(lambda self: "tests/pslist/pid{0}/".format(self._config.PID)) def calculate(self): ....

Note the use of the callback to finely tune the cache key depending on external variables.

Member Function Documentation

def volatility.cache.CacheDecorator.generate	(		self,
			path,
			g
	)

Special handling for generators.

We pass each iteration back immediately, and keep it in a list. Note that if the generator is aborted, the cache is not dumped.

Member Data Documentation

volatility.cache.CacheDecorator.node

See if the path is callable:

Check if the result can be retrieved

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The documentation for this class was generated from the following file:

• volatility/cache.py