def bind_to_random_port(self, addr, min_port=49152, max_port=65536, max_tries=100):
"""bind this socket to a random port in a range
Parameters
----------
addr : str
The address string without the port to pass to ``Socket.bind()``.
min_port : int, optional
The minimum port in the range of ports to try (inclusive).
max_port : int, optional
The maximum port in the range of ports to try (exclusive).
max_tries : int, optional
The maximum number of bind attempts to make.
Returns
-------
port : int
The port the socket was bound to.
Raises
------
ZMQBindError
if `max_tries` reached before successful bind
"""
for i in range(max_tries):
try:
port = random.randrange(min_port, max_port)
self.bind('%s:%s' % (addr, port))
except ZMQError as exception:
if not exception.errno == zmq.EADDRINUSE:
raise
else:
return port
raise ZMQBindError("Could not bind socket to random port.")
def bind_to_random_port(self,
addr,
min_port=49152,
max_port=65536,
max_tries=100):
"""Bind this socket to a random port in a range.
If the port range is unspecified, the system will choose the port.
Parameters
----------
addr : str
The address string without the port to pass to ``Socket.bind()``.
min_port : int, optional
The minimum port in the range of ports to try (inclusive).
max_port : int, optional
The maximum port in the range of ports to try (exclusive).
max_tries : int, optional
The maximum number of bind attempts to make.
Returns
-------
port : int
The port the socket was bound to.
Raises
------
ZMQBindError
if `max_tries` reached before successful bind
"""
if hasattr(
constants,
'LAST_ENDPOINT') and min_port == 49152 and max_port == 65536:
# if LAST_ENDPOINT is supported, and min_port / max_port weren't specified,
# we can bind to port 0 and let the OS do the work
self.bind("%s:*" % addr)
url = self.last_endpoint.decode('ascii', 'replace')
_, port_s = url.rsplit(':', 1)
return int(port_s)
for i in range(max_tries):
try:
port = random.randrange(min_port, max_port)
self.bind('%s:%s' % (addr, port))
except ZMQError as exception:
en = exception.errno
if en == zmq.EADDRINUSE:
continue
elif sys.platform == 'win32' and en == errno.EACCES:
continue
else:
raise
else:
return port
raise ZMQBindError("Could not bind socket to random port.")