def listen_udp_proc(self, addrinfo, task=None):
task.set_daemon()
if addrinfo.family == socket.AF_INET6:
mreq = socket.inet_pton(addrinfo.family, addrinfo.broadcast)
mreq += struct.pack('@I', addrinfo.ifn)
bc_sock = AsyncSocket(socket.socket(addrinfo.family, socket.SOCK_DGRAM))
if addrinfo.family == socket.AF_INET:
bc_sock.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)
else: # addrinfo.family == socket.AF_INET6
bc_sock.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_MULTICAST_HOPS,
struct.pack('@i', 1))
bc_sock.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_MULTICAST_IF, addrinfo.ifn)
bc_sock.bind((addrinfo.ip, 0))
if self.scheduler_ip_addrs and self.scheduler_port:
relay_request = {'ip_addrs': self.scheduler_ip_addrs, 'port': self.scheduler_port,
'version': __version__, 'sign': None}
bc_sock.sendto('PING:'.encode() + serialize(relay_request),
(self._broadcast, self.node_port))
listen_sock = AsyncSocket(socket.socket(addrinfo.family, socket.SOCK_DGRAM))
if addrinfo.family == socket.AF_INET:
listen_sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
else: # addrinfo.family == socket.AF_INET6
listen_sock.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_JOIN_GROUP, mreq)
listen_sock.bind((addrinfo.ip, self.listen_port))
while 1:
msg, addr = yield listen_sock.recvfrom(1024)
if not msg.startswith('PING:'.encode()):
logger.debug('Ignoring message "%s" from %s',
msg[:min(len(msg), 5)], addr[0])
continue
logger.debug('Ping message from %s (%s)', addr[0], addr[1])
try:
info = deserialize(msg[len('PING:'.encode()):])
if info['version'] != __version__:
logger.warning('Ignoring %s due to version mismatch: %s / %s',
info['ip_addrs'], info['version'], __version__)
continue
self.scheduler_ip_addrs = info['ip_addrs'] + [addr[0]]
self.scheduler_port = info['port']
except:
logger.debug('Ignoring ping message from %s (%s)', addr[0], addr[1])
logger.debug(traceback.format_exc())
continue
if info.get('relay', None):
logger.debug('Ignoring ping back (from %s)', addr[0])
continue
logger.debug('relaying ping from %s / %s', info['ip_addrs'], addr[0])
if self.node_port == self.listen_port:
info['relay'] = 'y' # 'check if this message loops back to self
yield bc_sock.sendto('PING:'.encode() + serialize(info), addr)
def discover_nodes(self, task=None):
addrinfos = list(self.addrinfos.values())
for addrinfo in addrinfos:
info_msg = {
'ip_addr': addrinfo.ip,
'port': self.info_port,
'sign': self.sign,
'version': _dispy_version
}
bc_sock = AsyncSocket(
socket.socket(addrinfo.family, socket.SOCK_DGRAM))
bc_sock.settimeout(MsgTimeout)
ttl_bin = struct.pack('@i', 1)
if addrinfo.family == socket.AF_INET:
if self.ipv4_udp_multicast:
bc_sock.setsockopt(socket.IPPROTO_IP,
socket.IP_MULTICAST_TTL, ttl_bin)
else:
bc_sock.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST,
1)
else: # addrinfo.family == socket.AF_INET6
bc_sock.setsockopt(socket.IPPROTO_IPV6,
socket.IPV6_MULTICAST_HOPS, ttl_bin)
bc_sock.setsockopt(socket.IPPROTO_IPV6,
socket.IPV6_MULTICAST_IF, addrinfo.ifn)
bc_sock.bind((addrinfo.ip, 0))
try:
yield bc_sock.sendto(b'NODE_INFO:' + serialize(info_msg),
(addrinfo.broadcast, self.node_port))
except Exception:
pass
bc_sock.close()
def verify_broadcast(self, addrinfo, msg, task=None):
if msg.get('relay', None):
raise StopIteration
msg['relay'] = 'y'
# TODO: check if current scheduler is done with nodes?
if msg['sign']:
msg['auth'] = dispy.auth_code(self.secret, msg['sign'])
reply = None
for scheduler_ip_addr in msg['ip_addrs']:
msg['scheduler_ip_addr'] = scheduler_ip_addr
sock = AsyncSocket(socket.socket(addrinfo.family,
socket.SOCK_STREAM),
keyfile=self.keyfile,
certfile=self.certfile)
sock.settimeout(dispy.MsgTimeout)
try:
yield sock.connect((scheduler_ip_addr, msg['port']))
yield sock.send_msg('RELAY_INFO:'.encode() + serialize(msg))
reply = yield sock.recv_msg()
reply = deserialize(reply)
except:
continue
else:
break
finally:
sock.close()
if not reply:
raise StopIteration
# TODO: since dispynetrelay is not aware of computations closing, if
# more than one client sends ping, nodes will respond to different
# clients
self.scheduler_ip_addr = reply['ip_addrs'] = [scheduler_ip_addr]
self.scheduler_port = reply['port']
bc_sock = AsyncSocket(socket.socket(addrinfo.family,
socket.SOCK_DGRAM))
ttl_bin = struct.pack('@i', 1)
if addrinfo.family == socket.AF_INET:
if self.ipv4_udp_multicast:
bc_sock.setsockopt(socket.IPPROTO_IP, socket.IP_MULTICAST_TTL,
ttl_bin)
else:
bc_sock.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)
else: # addrinfo.family == socket.AF_INET6
bc_sock.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_MULTICAST_HOPS,
ttl_bin)
bc_sock.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_MULTICAST_IF,
addrinfo.ifn)
bc_sock.bind((addrinfo.ip, 0))
yield bc_sock.sendto('PING:'.encode() + serialize(msg),
(addrinfo.broadcast, self.node_port))
bc_sock.close()
def verify_broadcast(self, addrinfo, msg, task=None):
if msg.get('relay', None):
raise StopIteration
msg['relay'] = 'y'
# TODO: check if current scheduler is done with nodes?
if msg['sign']:
msg['auth'] = dispy.auth_code(self.secret, msg['sign'])
reply = None
for scheduler_ip_addr in msg['ip_addrs']:
msg['scheduler_ip_addr'] = scheduler_ip_addr
sock = AsyncSocket(socket.socket(addrinfo.family, socket.SOCK_STREAM),
keyfile=self.keyfile, certfile=self.certfile)
sock.settimeout(dispy.MsgTimeout)
try:
yield sock.connect((scheduler_ip_addr, msg['port']))
yield sock.send_msg('RELAY_INFO:'.encode() + serialize(msg))
reply = yield sock.recv_msg()
reply = deserialize(reply)
except Exception:
continue
else:
break
finally:
sock.close()
if not reply:
raise StopIteration
# TODO: since dispynetrelay is not aware of computations closing, if
# more than one client sends ping, nodes will respond to different
# clients
self.scheduler_ip_addr = reply['ip_addrs'] = [scheduler_ip_addr]
self.scheduler_port = reply['port']
bc_sock = AsyncSocket(socket.socket(addrinfo.family, socket.SOCK_DGRAM))
ttl_bin = struct.pack('@i', 1)
if addrinfo.family == socket.AF_INET:
if self.ipv4_udp_multicast:
bc_sock.setsockopt(socket.IPPROTO_IP, socket.IP_MULTICAST_TTL, ttl_bin)
else:
bc_sock.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)
else: # addrinfo.family == socket.AF_INET6
bc_sock.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_MULTICAST_HOPS, ttl_bin)
bc_sock.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_MULTICAST_IF, addrinfo.ifn)
bc_sock.bind((addrinfo.ip, 0))
yield bc_sock.sendto('PING:'.encode() + serialize(msg),
(addrinfo.broadcast, self.node_port))
bc_sock.close()
def sched_udp_proc(self, addrinfo, task=None):
task.set_daemon()
sched_sock = AsyncSocket(
socket.socket(addrinfo.family, socket.SOCK_DGRAM))
if addrinfo.family == socket.AF_INET:
sched_sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
else: # addrinfo.family == socket.AF_INET6
mreq = socket.inet_pton(addrinfo.family, addrinfo.broadcast)
mreq += struct.pack('@I', addrinfo.ifn)
sched_sock.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_JOIN_GROUP,
mreq)
sched_sock.bind((addrinfo.ip, self.scheduler_port))
while 1:
msg, addr = yield sched_sock.recvfrom(1024)
if (not msg.startswith('PING:'.encode())
or not self.scheduler_ip_addrs or not self.scheduler_port):
logger.debug('Ignoring ping message from %s (%s)', addr[0],
addr[1])
continue
try:
info = deserialize(msg[len('PING:'.encode()):])
assert info['version'] == __version__
# assert isinstance(info['cpus'], int)
except:
logger.debug(traceback.format_exc())
msg = {
'ip_addrs': self.scheduler_ip_addrs,
'port': self.scheduler_port,
'version': __version__
}
if info.get('relay', None):
logger.debug('Ignoring ping back from %s: %s', addr[0], info)
continue
msg['relay'] = 'y'
relay_sock = AsyncSocket(
socket.socket(addrinfo.family, socket.SOCK_DGRAM))
relay_sock.bind((addrinfo.ip, 0))
yield relay_sock.sendto('PING:'.encode() + serialize(msg),
(info['ip_addr'], info['port']))
relay_sock.close()
def timer_proc(self, task=None):
task.set_daemon()
last_ping = 0
addrinfos = list(self.addrinfos.values())
while 1:
yield task.sleep(self.poll_interval)
now = time.time()
with self.lock:
nodes = list(self.nodes.values())
# TODO: it may be better to have nodes send updates periodically
for node in nodes:
if node._priv.auth:
Task(self.update_node_info, node)
if (now - last_ping) >= self.ping_interval:
last_ping = now
for addrinfo in addrinfos:
info_msg = {'ip_addr': addrinfo.ip, 'port': self.info_port,
'sign': self.sign, 'version': _dispy_version}
bc_sock = AsyncSocket(socket.socket(addrinfo.family, socket.SOCK_DGRAM))
bc_sock.settimeout(MsgTimeout)
ttl_bin = struct.pack('@i', 1)
if addrinfo.family == socket.AF_INET:
if self.ipv4_udp_multicast:
bc_sock.setsockopt(socket.IPPROTO_IP, socket.IP_MULTICAST_TTL, ttl_bin)
else:
bc_sock.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)
else: # addrinfo.family == socket.AF_INET6
bc_sock.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_MULTICAST_HOPS, ttl_bin)
bc_sock.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_MULTICAST_IF,
addrinfo.ifn)
bc_sock.bind((addrinfo.ip, 0))
try:
yield bc_sock.sendto('NODE_INFO:' + serialize(info_msg),
(addrinfo.broadcast, self.node_port))
except Exception:
pass
bc_sock.close()
