def __init__(self, host='localhost', port=9090, unix_socket=None, socket_family=socket.AF_UNSPEC):
"""Initialize a TSocket
@param host(str) The host to connect to.
@param port(int) The (TCP) port to connect to.
@param unix_socket(str) The filename of a unix socket to connect to.
(host and port will be ignored.)
@param socket_family(int) The socket family to use with this socket.
"""
self.host = host
self.port = port
self._unix_socket = unix_socket
self._socket_family = socket_family
self._timeout = None
self.socket = None
self.socket_buf = SocketBuffer()
self.handle = None
class TRBuffSocket(TSocketBase):
__slots__ = ("host", "port", "_unix_socket", "_socket_family", "_timeout", "socket", "socket_buf", "handle")
"""
1. 支持 inet, unix domain socket通信的socket
2. 带有read buffer的socket, 算法来自redis-py
"""
def __init__(self, host='localhost', port=9090, unix_socket=None, socket_family=socket.AF_UNSPEC):
"""Initialize a TSocket
@param host(str) The host to connect to.
@param port(int) The (TCP) port to connect to.
@param unix_socket(str) The filename of a unix socket to connect to.
(host and port will be ignored.)
@param socket_family(int) The socket family to use with this socket.
"""
self.host = host
self.port = port
self._unix_socket = unix_socket
self._socket_family = socket_family
self._timeout = None
self.socket = None
self.socket_buf = SocketBuffer()
self.handle = None
def setHandle(self, h):
self.setSocket(h)
def setSocket(self, s):
"""
更新Socket, 以及对应的SocketBuffer
"""
self.socket = s
self.socket_buf.update_socket(self.socket)
def isOpen(self):
return self.socket is not None
def close(self):
if self.socket:
self.socket.close()
self.socket = None
self.socket_buf.update_socket(self.socket)
def setTimeout(self, ms):
if ms is None:
self._timeout = None
else:
self._timeout = ms / 1000.0
if self.socket is not None:
self.socket.settimeout(self._timeout)
def open(self):
try:
res0 = self._resolveAddr()
for res in res0:
self.socket = socket.socket(res[0], res[1])
self.socket.settimeout(self._timeout)
self.socket_buf.update_socket(self.socket)
# 拷贝自redis-py
if res[0] == socket.AF_INET:
self.socket.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1)
try:
self.socket.connect(res[4])
except socket.error, e:
if res is not res0[-1]:
continue
else:
raise e
break
except socket.error, e:
# 遇到这种socket的Error, 似乎没有必要Retry, 直接报错
if self._unix_socket:
message = 'Could not connect to socket %s' % self._unix_socket
else:
message = 'Could not connect to %s:%d' % (self.host, self.port)
raise TTransportException(type=TTransportException.NOT_OPEN, message=message)