aucoin/tools/stress.py

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2018-07-15 23:30:55 +02:00
import logging
import random
import time
from threading import Thread
from aucoin.core import Core
from aucoin.database import session_scope
logger = logging.getLogger(__name__)
class Stressor(object):
def __init__(self, core: Core, receiver_address=None):
self.core = core
self.receiver_address = receiver_address
logger.info("Starting stressor")
Thread(target=self.sender, daemon=True).start()
def sender(self):
# Receiver address is either provided by parameter or chosen at random. We set it here (in the thread) instead
# of in the constructor because random_address() might loop.
receiver_address = self.receiver_address or self.random_address()
logger.info("Chosen receiver address: %s", receiver_address.hex())
while True:
time.sleep(1)
with self.core.lock:
balance = sum(self.core.wallet.balance) # sum of confirmed and unconfirmed balance
while balance >= 110:
amount = random.randint(10, 100)
fee = random.randint(0, 10)
logger.info("Sending %s auc to %s with %s auc fee", amount, receiver_address.hex(), fee)
self.core.wallet.make_transaction(receiver_address, amount, fee)
balance -= amount + fee
def random_address(self):
logger.debug("Choosing random receiver address..")
# Loop until we get an address because the blockchain might be empty (or only contain our addresses), in which
# case we need to keep trying until somebody else mines a block.
receiver_address = None
while receiver_address is None:
with session_scope() as session:
# Known addresses are all addresses on the chain minus the address of the genesis block and ourselves
known_addresses = self.core.blockchain.known_addresses(session) - {bytes(32)} - self.core.wallet.addresses
if known_addresses:
return random.choice(tuple(known_addresses)) # random.choice doesn't work with sets
time.sleep(1)
continue