def dbcall():
with self.node.db.open_session() as sess:
tlocked = False
batch = []
added = []
for peer in peers:
assert type(peer) is Peer
if not check_address(peer.address):
continue
if not tlocked:
self.node.db.lock_table(sess, Peer)
tlocked = True
q = sess.query(func.count("*"))
if peer.pubkey:
assert peer.node_id is None
peer.node_id = enc.generate_ID(peer.pubkey)
peer.distance, peer.direction = calc_log_distance(self.node_id, peer.node_id)
q = q.filter(Peer.node_id == peer.node_id)
elif peer.address:
assert peer.node_id is None
q = q.filter(Peer.address == peer.address)
if q.scalar() > 0:
if log.isEnabledFor(logging.DEBUG):
log.debug("Peer [{}] already in list.".format(peer.address))
continue
peer.connected = False
if log.isEnabledFor(logging.INFO):
log.info("Adding Peer [{}].".format(peer.address))
sess.add(peer)
batch.append(peer)
if len(batch) == 10:
sess.commit()
for dbpeer in batch:
fetch_id_in_thread = dbpeer.id
added.extend(batch)
batch.clear()
sess.expunge_all()
tlocked = False
if batch and tlocked:
sess.commit()
for dbpeer in batch:
fetch_id_in_thread = dbpeer.id
added.extend(batch)
sess.expunge_all()
return added
def __find_noonce(rp):
# log.debug("Worker running.")
wid, prefix, nbits, data, noonce_offset, noonce_size = rp.recv()
max_dist = HASH_BITS - nbits
nbytes = int(nbits / 8)
nbytes += 4 # Extra bytes to increase probability of enough possibilities.
nbytes = min(nbytes, noonce_size)
ne = noonce_offset + noonce_size
noonce_offset = ne - nbytes
noonce = wid
while True:
noonce_bytes = noonce.to_bytes(nbytes, "big")
data[noonce_offset:ne] = noonce_bytes
h = enc.generate_ID(data)
try:
dist, direction = mutil.calc_log_distance(h, prefix)
match = dist <= max_dist and direction == -1
except IndexError:
# log.debug("Exactly matched prefix.")
match = True
if match:
# if log.isEnabledFor(logging.INFO):
# log.info("noonce_bytes=[{}]."\
# .format(mutil.hex_string(noonce_bytes)))
# if log.isEnabledFor(logging.DEBUG):
# log.debug("resulting block=[\n{}]."\
# .format(mutil.hex_dump(data)))
rp.send(noonce_bytes)
return
noonce += WORKERS
def update_distance(self):
self.distance, self.direction =\
mutil.calc_log_distance(self.engine.node_id, self.node_id)
def update_distance(self):
self.distance, self.direction =\
mutil.calc_log_distance(self.engine.node_id, self.node_id)
def dbcall():
with self.node.db.open_session() as sess:
tlocked = False
batch = []
added = []
for peer in peers:
assert type(peer) is Peer
if not check_address(peer.address):
continue
if not tlocked:
self.node.db.lock_table(sess, Peer)
tlocked = True
q = sess.query(func.count("*")).select_from(Peer)
if peer.pubkey:
assert peer.node_id is None
peer.node_id = enc.generate_ID(peer.pubkey)
peer.distance, peer.direction =\
calc_log_distance(\
self.node_id,\
peer.node_id)
q = q.filter(Peer.node_id == peer.node_id)
elif peer.address:
assert peer.node_id is None
q = q.filter(Peer.address == peer.address)
if q.scalar() > 0:
if log.isEnabledFor(logging.DEBUG):
log.debug("Peer [{}] already in list."\
.format(peer.address))
continue
peer.connected = False
if log.isEnabledFor(logging.INFO):
log.info("Adding Peer [{}].".format(peer.address))
sess.add(peer)
batch.append(peer)
if len(batch) == 10:
sess.commit()
for dbpeer in batch:
fetch_id_in_thread = dbpeer.id
added.extend(batch)
batch.clear()
sess.expunge_all()
tlocked = False
if batch and tlocked:
sess.commit()
for dbpeer in batch:
fetch_id_in_thread = dbpeer.id
added.extend(batch)
sess.expunge_all()
return added