def filter(self, code, optimize=True, netmask=0):
if hasattr(self, "_fp"):
cpcap.freecode(self._fp)
if code:
self._fp = cpcap.filter(self._p, code, optimize, netmask)
def __del__(self):
if hasattr(self, "_fp"):
cpcap.freecode(self._fp)
cpcap.close(self._p)
del self._p
