def create_socket(family, bindaddr, port):
sockaddr = ('', port)
if bindaddr is not None:
gai_family = 0 if family == socket.AF_INET6 else family
addrs = socket.getaddrinfo(bindaddr, port, gai_family)
family, socktype, proto, canonname, sockaddr = addrs[0]
try:
sock = socket.socket(family, socket.SOCK_STREAM)
if family == socket.AF_INET6 and socket.has_ipv6:
# Windows needs this socket option set to listen on both IPV4 and
# IPV6. However, IPPROTO_IPV6 is missing from the socket module on Windows.
# Since the value is likely to never change, just include it here.
IPPROTO_IPV6 = 41
sock.setsockopt(IPPROTO_IPV6, socket.IPV6_V6ONLY, 0)
sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
_core._mark_non_inheritable(sock.fileno())
sock.bind(sockaddr)
return sock
except socket.error as e:
print(family, sockaddr)
# Fall back to IPv4
if family == socket.AF_INET6 and e.args[0] in (97, 10047):
return create_socket(socket.AF_INET, bindaddr, port)
raise
def spawn_local(clientclass=_core.Client, **kw):
'''Create a private server instance and connect to it.'''
global _local_id
csock, ssock = socketpair()
_core._mark_non_inheritable(csock.fileno())
spawn_runner_process(ssock, 'local:%d' % _local_id, b'', kw, (csock,))
ssock.close()
rc = clientclass(b'')
rc.set_socket(csock, 'local:%d' % _local_id)
_local_id += 1
return rc