<s> """<STR_LIT>""" <EOL> import heapq <EOL> from operator import itemgetter <EOL> from protos import objects <EOL> class Node ( object ) : <EOL> def __init__ ( self , node_id , ip = None , port = None , pubkey = None , <EOL> relay_node = None , nat_type = None , vendor = False ) : <EOL> self . id = node_id <EOL> self . ip = ip <EOL> self . port = port <EOL> self . pubkey = pubkey <EOL> self . relay_node = relay_node <EOL> self . nat_type = nat_type <EOL> self . vendor = vendor <EOL> self . long_id = long ( node_id . encode ( '<STR_LIT>' ) , <NUM_LIT:16> ) <EOL> def getProto ( self ) : <EOL> node_address = objects . Node . IPAddress ( ) <EOL> node_address . ip = self . ip <EOL> node_address . port = self . port <EOL> n = objects . Node ( ) <EOL> n . guid = self . id <EOL> n . publicKey = self . pubkey <EOL> n . natType = self . nat_type <EOL> n . nodeAddress . MergeFrom ( node_address ) <EOL> n . vendor = self . vendor <EOL> if self . relay_node is not None : <EOL> relay_address = objects . Node . IPAddress ( ) <EOL> relay_address . ip = self . relay_node [ <NUM_LIT:0> ] <EOL> relay_address . port = self . relay_node [ <NUM_LIT:1> ] <EOL> n . relayAddress . MergeFrom ( relay_address ) <EOL> return n <EOL> def sameHomeAs ( self , node ) : <EOL> return self . ip == node . ip and self . port == node . port <EOL> def distanceTo ( self , node ) : <EOL> """<STR_LIT>""" <EOL> return self . long_id ^ node . long_id <EOL> def __iter__ ( self ) : <EOL> """<STR_LIT>""" <EOL> return iter ( [ self . id , self . ip , self . port ] ) <EOL> def __repr__ ( self ) : <EOL> return repr ( [ self . long_id , self . ip , self . port ] ) <EOL> def __str__ ( self ) : <EOL> return "<STR_LIT>" % ( self . ip , str ( self . port ) ) <EOL> class NodeHeap ( object ) : <EOL> """<STR_LIT>""" <EOL> def __init__ ( self , node , maxsize ) : <EOL> """<STR_LIT>""" <EOL> self . node = node <EOL> self . heap = [ ] <EOL> self . contacted = set ( ) <EOL> self . maxsize = maxsize <EOL> def remove ( self , peerIDs ) : <EOL> """<STR_LIT>""" <EOL> peerIDs = set ( peerIDs ) <EOL> if len ( peerIDs ) == <NUM_LIT:0> : <EOL> return <EOL> nheap = [ ] <EOL> for distance , node in self . heap : <EOL> if node . id not in peerIDs : <EOL> heapq . heappush ( nheap , ( distance , node ) ) <EOL> self . heap = nheap <EOL> def getNodeById ( self , node_id ) : <EOL> for _ , node in self . heap : <EOL> if node . id == node_id : <EOL> return node <EOL> return None <EOL> def allBeenContacted ( self ) : <EOL> return len ( self . getUncontacted ( ) ) == <NUM_LIT:0> <EOL> def getIDs ( self ) : <EOL> return [ n . id for n in self ] <EOL> def markContacted ( self , node ) : <EOL> self . contacted . add ( node . id ) <EOL> def popleft ( self ) : <EOL> if len ( self ) > <NUM_LIT:0> : <EOL> return heapq . heappop ( self . heap ) [ <NUM_LIT:1> ] <EOL> return None <EOL> def push ( self , nodes ) : <EOL> """<STR_LIT>""" <EOL> if not isinstance ( nodes , list ) : <EOL> nodes = [ nodes ] <EOL> for node in nodes : <EOL> if node not in self : <EOL> distance = self . node . distanceTo ( node ) <EOL> heapq . heappush ( self . heap , ( distance , node ) ) <EOL> def __len__ ( self ) : <EOL> return min ( len ( self . heap ) , self . maxsize ) <EOL> def __iter__ ( self ) : <EOL> nodes = heapq . nsmallest ( self . maxsize , self . heap ) <EOL> return iter ( map ( itemgetter ( <NUM_LIT:1> ) , nodes ) ) <EOL> def __contains__ ( self , node ) : <EOL> for distance , n in self . heap : <EOL> if node . id == n . id : <EOL> return True <EOL> return False <EOL> def getUncontacted ( self ) : <EOL> return [ n for n in self if n . id not in self . contacted ] </s>
