def __init__(self, base=None, session=None, profile=None, **_):
"""Base is the AS we will be stacking on top of, opts are options which
we may use.
Args:
base: A base address space to stack on top of (i.e. delegate to it for
satisfying read requests).
session: An optional session object.
profile: An optional profile to use for parsing the address space
(e.g. needed for hibernation, crash etc.)
"""
if session is None and base is not None:
session = base.session
self.base = base
if base:
self.volatile = self.base.volatile
self.profile = profile
self.session = session
if session is None:
raise RuntimeError("Session must be provided.")
# This is a short lived cache. If we use a static image, this cache need
# not expire, however, when analysing a live system we need to flush the
# cache frequently.
self.cache = utils.AgeBasedCache(max_age=20)
def __init__(self,
base=None,
session=None,
write=False,
profile=None,
**_):
"""Base is the AS we will be stacking on top of, opts are options which
we may use.
Args:
base: A base address space to stack on top of (i.e. delegate to it for
satisfying read requests).
session: An optional session object.
write: Should writing be allowed? Not currently implemented.
profile: An optional profile to use for parsing the address space
(e.g. needed for hibernation, crash etc.)
"""
if session is None and base is not None:
session = base.session
self.base = base
if base:
self.volatile = self.base.volatile
# This is the base address space which this address space reads from. In
# this context, this address space is used to read physical addresses as
# obtained from get_available_addresses(). NOTE: This is a weak
# reference to avoid creating a cycle.
self.phys_base = weakref.proxy(self)
self.profile = profile
self.session = session
if session is None:
raise RuntimeError("Session must be provided.")
self.writeable = (self.session and self.session.writable_address_space
or write)
# This is a short lived cache. If we use a static image, this cache need
# not expire, however, when analysing a live system we need to flush the
# cache frequently.
self.cache = utils.AgeBasedCache(max_age=20)