Peter Surda
e6ce73f4bd
- fixes "fast python" (multiprocessing) PoW - python PoW (both slow and fast) interruptible on *NIX - signal handler should handle multiple processes and threads correctly (only tested on Linux) - popul window asking whether to interrupt PoW when quitting QT GUI - PoW status in "sent" folder fixes and now also displays broadcast status which didn't exist before - Fixes #894
56 lines
2.3 KiB
Python
56 lines
2.3 KiB
Python
# objectHashHolder is a timer-driven thread. One objectHashHolder thread is used
|
|
# by each sendDataThread. The sendDataThread uses it whenever it needs to
|
|
# advertise an object to peers in an inv message, or advertise a peer to other
|
|
# peers in an addr message. Instead of sending them out immediately, it must
|
|
# wait a random number of seconds for each connection so that different peers
|
|
# get different objects at different times. Thus an attacker who is
|
|
# connecting to many network nodes who receives a message first from Alice
|
|
# cannot be sure if Alice is the node who originated the message.
|
|
|
|
import random
|
|
import time
|
|
import threading
|
|
|
|
class objectHashHolder(threading.Thread):
|
|
size = 10
|
|
def __init__(self, sendDataThreadMailbox):
|
|
threading.Thread.__init__(self, name="objectHashHolder")
|
|
self.shutdown = False
|
|
self.sendDataThreadMailbox = sendDataThreadMailbox # This queue is used to submit data back to our associated sendDataThread.
|
|
self.collectionOfHashLists = {}
|
|
self.collectionOfPeerLists = {}
|
|
for i in range(self.size):
|
|
self.collectionOfHashLists[i] = []
|
|
self.collectionOfPeerLists[i] = []
|
|
|
|
def run(self):
|
|
iterator = 0
|
|
while not self.shutdown:
|
|
if len(self.collectionOfHashLists[iterator]) > 0:
|
|
self.sendDataThreadMailbox.put((0, 'sendinv', self.collectionOfHashLists[iterator]))
|
|
self.collectionOfHashLists[iterator] = []
|
|
if len(self.collectionOfPeerLists[iterator]) > 0:
|
|
self.sendDataThreadMailbox.put((0, 'sendaddr', self.collectionOfPeerLists[iterator]))
|
|
self.collectionOfPeerLists[iterator] = []
|
|
iterator += 1
|
|
iterator %= self.size
|
|
time.sleep(1)
|
|
|
|
def holdHash(self,hash):
|
|
self.collectionOfHashLists[random.randrange(0, self.size)].append(hash)
|
|
|
|
def hasHash(self, hash):
|
|
if hash in (hashlist for hashlist in self.collectionOfHashLists):
|
|
logger.debug("Hash in hashHolder")
|
|
return True
|
|
return False
|
|
|
|
def holdPeer(self,peerDetails):
|
|
self.collectionOfPeerLists[random.randrange(0, self.size)].append(peerDetails)
|
|
|
|
def hashCount(self):
|
|
return sum([len(x) for x in self.collectionOfHashLists])
|
|
|
|
def close(self):
|
|
self.shutdown = True
|