def keepalive(connection, version_msg):
"""
Periodically sends a ping message to the specified node to maintain open
connection. Open connections are tracked in open set with the associated
data stored in opendata set in Redis.
"""
node = connection.to_addr
version = version_msg.get('version', "")
user_agent = version_msg.get('user_agent', "")
now = int(time.time())
data = node + (version, user_agent, now)
REDIS_CONN.sadd('open', node)
REDIS_CONN.sadd('opendata', data)
redis_pipe = REDIS_CONN.pipeline()
last_ping = now
while True:
try:
wait = int(REDIS_CONN.get('elapsed'))
except TypeError as err:
wait = 60
if time.time() > last_ping + wait:
nonce = random.getrandbits(64)
try:
connection.ping(nonce=nonce)
except socket.error as err:
logging.debug("Closing {} ({})".format(node, err))
break
last_ping = time.time()
key = "ping:{}-{}:{}".format(node[0], node[1], nonce)
redis_pipe.lpush(key, int(last_ping * 1000)) # in ms
redis_pipe.expire(key, SETTINGS['ttl'])
redis_pipe.execute()
# Sink received messages to flush them off socket buffer
try:
connection.get_messages()
except socket.timeout as err:
pass
except (ProtocolError, ConnectionError, socket.error) as err:
logging.debug("Closing {} ({})".format(node, err))
break
gevent.sleep(0.3)
connection.close()
REDIS_CONN.srem('open', node)
REDIS_CONN.srem('opendata', data)
def keepalive(connection, version_msg):
"""
Periodically sends a ping message to the specified node to maintain open
connection. Open connections are tracked in open set with the associated
data stored in opendata set in Redis.
"""
node = connection.to_addr
version = version_msg.get('version', "")
user_agent = version_msg.get('user_agent', "")
now = int(time.time())
data = node + (version, user_agent, now)
REDIS_CONN.sadd('open', node)
REDIS_CONN.sadd('opendata', data)
redis_pipe = REDIS_CONN.pipeline()
last_ping = now
while True:
try:
wait = int(REDIS_CONN.get('elapsed'))
except TypeError as err:
wait = 60
if time.time() > last_ping + wait:
nonce = random.getrandbits(64)
try:
connection.ping(nonce=nonce)
except socket.error as err:
logging.debug("Closing {} ({})".format(node, err))
break
last_ping = time.time()
key = "ping:{}-{}:{}".format(node[0], node[1], nonce)
redis_pipe.lpush(key, int(last_ping * 1000)) # in ms
redis_pipe.expire(key, SETTINGS['ttl'])
redis_pipe.execute()
# Sink received messages to flush them off socket buffer
try:
connection.get_messages()
except socket.timeout as err:
pass
except (ProtocolError, ConnectionError, socket.error) as err:
logging.debug("Closing {} ({})".format(node, err))
break
gevent.sleep(0.3)
connection.close()
REDIS_CONN.srem('open', node)
REDIS_CONN.srem('opendata', data)
def keepalive(connection, version_msg):
"""
Periodically sends a ping message to the specified node to maintain open
connection. Open connections are tracked in open set with the associated
data stored in opendata set in Redis.
"""
node = connection.to_addr
version = version_msg.get('version', "")
user_agent = version_msg.get('user_agent', "")
now = int(time.time())
data = node + (version, user_agent, now)
REDIS_CONN.sadd('open', node)
REDIS_CONN.sadd('opendata', data)
last_ping = now
while True:
try:
ttl = int(REDIS_CONN.get('elapsed'))
except TypeError as err:
ttl = 60
if time.time() > last_ping + ttl:
try:
connection.ping()
except socket.error as err:
logging.debug("Closing {} ({})".format(node, err))
break
last_ping = time.time()
# Sink received messages to flush them off socket buffer
try:
connection.get_messages()
except socket.timeout as err:
pass
except (ProtocolError, socket.error) as err:
logging.debug("Closing {} ({})".format(node, err))
break
gevent.sleep(0.3)
connection.close()
REDIS_CONN.srem('open', node)
REDIS_CONN.srem('opendata', data)
def keepalive(connection, version_msg):
"""
Periodically sends a ping message to the specified node to maintain open
connection. Open connections are tracked in open set with the associated
data stored in opendata set in Redis.
"""
node = connection.to_addr
version = version_msg.get('version', "")
user_agent = version_msg.get('user_agent', "")
now = int(time.time())
data = node + (version, user_agent, now)
REDIS_CONN.sadd('open', node)
REDIS_CONN.sadd('opendata', data)
last_ping = now
while True:
try:
ttl = int(REDIS_CONN.get('elapsed'))
except TypeError as err:
ttl = 60
if time.time() > last_ping + ttl:
try:
connection.ping()
except socket.error as err:
logging.debug("Closing {} ({})".format(node, err))
break
last_ping = time.time()
# Sink received messages to flush them off socket buffer
try:
connection.get_messages()
except socket.timeout as err:
pass
except (ProtocolError, socket.error) as err:
logging.debug("Closing {} ({})".format(node, err))
break
gevent.sleep(0.3)
connection.close()
REDIS_CONN.srem('open', node)
REDIS_CONN.srem('opendata', data)
def keepalive(connection, version_msg):
"""
Periodically sends a ping message to the specified node to maintain open
connection and yields received inv messages. Open connections are tracked
in open set with the associated data stored in opendata set in Redis.
"""
node = connection.to_addr
version = version_msg.get('version', "")
user_agent = version_msg.get('user_agent', "")
start_height = version_msg.get('start_height', 0)
now = int(time.time())
data = node + (version, user_agent, now)
REDIS_CONN.sadd('open', node)
REDIS_CONN.sadd('opendata', data)
start_height_key = "start_height:{}-{}".format(node[0], node[1])
start_height_ttl = SETTINGS['keepalive'] * 2 # > keepalive
REDIS_CONN.setex(start_height_key, start_height_ttl, start_height)
last_ping = now
while True:
if time.time() > last_ping + SETTINGS['keepalive']:
REDIS_CONN.expire(start_height_key, start_height_ttl)
try:
logging.debug("Ping: {}".format(node))
connection.ping()
except socket.error as err:
logging.debug("Closing {} ({})".format(node, err))
break
last_ping = time.time()
try:
msgs = connection.get_messages(commands=["inv"])
except socket.timeout as err:
logging.debug("{}: {}".format(node, err))
except (ProtocolError, socket.error) as err:
logging.debug("Closing {} ({})".format(node, err))
break
else:
yield msgs
gevent.sleep()
connection.close()
REDIS_CONN.srem('open', node)
REDIS_CONN.srem('opendata', data)