我们从Python开源项目中，提取了以下27个代码示例，用于说明如何使用errno.WSAEADDRINUSE。
def __init__(self): # Based on Zope select_trigger.py: # https://github.com/zopefoundation/Zope/blob/master/src/ZServer/medusa/thread/select_trigger.py self.writer = socket.socket() # Disable buffering -- pulling the trigger sends 1 byte, # and we want that sent immediately, to wake up ASAP. self.writer.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1) count = 0 while 1: count += 1 # Bind to a local port; for efficiency, let the OS pick # a free port for us. # Unfortunately, stress tests showed that we may not # be able to connect to that port ("Address already in # use") despite that the OS picked it. This appears # to be a race bug in the Windows socket implementation. # So we loop until a connect() succeeds (almost always # on the first try). See the long thread at # http://mail.zope.org/pipermail/zope/2005-July/160433.html # for hideous details. a = socket.socket() a.bind(("127.0.0.1", 0)) a.listen(1) connect_address = a.getsockname() # assigned (host, port) pair try: self.writer.connect(connect_address) break # success except socket.error as detail: if (not hasattr(errno, 'WSAEADDRINUSE') or detail[0] != errno.WSAEADDRINUSE): # "Address already in use" is the only error # I've seen on two WinXP Pro SP2 boxes, under # Pythons 2.3.5 and 2.4.1. raise # (10048, 'Address already in use') # assert count <= 2 # never triggered in Tim's tests if count >= 10: # I've never seen it go above 2 a.close() self.writer.close() raise socket.error("Cannot bind trigger!") # Close `a` and try again. Note: I originally put a short # sleep() here, but it didn't appear to help or hurt. a.close() self.reader, addr = a.accept() self.reader.setblocking(0) self.writer.setblocking(0) a.close() self.reader_fd = self.reader.fileno()
def __init__(self): # Based on Zope async.py: http://svn.zope.org/zc.ngi/trunk/src/zc/ngi/async.py self.writer = socket.socket() # Disable buffering -- pulling the trigger sends 1 byte, # and we want that sent immediately, to wake up ASAP. self.writer.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1) count = 0 while 1: count += 1 # Bind to a local port; for efficiency, let the OS pick # a free port for us. # Unfortunately, stress tests showed that we may not # be able to connect to that port ("Address already in # use") despite that the OS picked it. This appears # to be a race bug in the Windows socket implementation. # So we loop until a connect() succeeds (almost always # on the first try). See the long thread at # http://mail.zope.org/pipermail/zope/2005-July/160433.html # for hideous details. a = socket.socket() a.bind(("127.0.0.1", 0)) a.listen(1) connect_address = a.getsockname() # assigned (host, port) pair try: self.writer.connect(connect_address) break # success except socket.error as detail: if (not hasattr(errno, 'WSAEADDRINUSE') or detail[0] != errno.WSAEADDRINUSE): # "Address already in use" is the only error # I've seen on two WinXP Pro SP2 boxes, under # Pythons 2.3.5 and 2.4.1. raise # (10048, 'Address already in use') # assert count <= 2 # never triggered in Tim's tests if count >= 10: # I've never seen it go above 2 a.close() self.writer.close() raise socket.error("Cannot bind trigger!") # Close `a` and try again. Note: I originally put a short # sleep() here, but it didn't appear to help or hurt. a.close() self.reader, addr = a.accept() self.reader.setblocking(0) self.writer.setblocking(0) a.close() self.reader_fd = self.reader.fileno()
def __init__(self): # Based on Zope async.py: http://svn.zope.org/zc.ngi/trunk/src/zc/ngi/async.py self.writer = socket.socket() # Disable buffering -- pulling the trigger sends 1 byte, # and we want that sent immediately, to wake up ASAP. self.writer.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1) count = 0 while 1: count += 1 # Bind to a local port; for efficiency, let the OS pick # a free port for us. # Unfortunately, stress tests showed that we may not # be able to connect to that port ("Address already in # use") despite that the OS picked it. This appears # to be a race bug in the Windows socket implementation. # So we loop until a connect() succeeds (almost always # on the first try). See the long thread at # http://mail.zope.org/pipermail/zope/2005-July/160433.html # for hideous details. a = socket.socket() a.bind(("127.0.0.1", 0)) connect_address = a.getsockname() # assigned (host, port) pair a.listen(1) try: self.writer.connect(connect_address) break # success except socket.error, detail: if detail[0] != errno.WSAEADDRINUSE: # "Address already in use" is the only error # I've seen on two WinXP Pro SP2 boxes, under # Pythons 2.3.5 and 2.4.1. raise # (10048, 'Address already in use') # assert count <= 2 # never triggered in Tim's tests if count >= 10: # I've never seen it go above 2 a.close() self.writer.close() raise socket.error("Cannot bind trigger!") # Close `a` and try again. Note: I originally put a short # sleep() here, but it didn't appear to help or hurt. a.close() self.reader, addr = a.accept() self.reader.setblocking(0) self.writer.setblocking(0) a.close() self.reader_fd = self.reader.fileno()
def __init__(self): # The __init__ code is taken from ZODB 3.4.1's # ZEO/zrpc/trigger.py, to worm around problems in the original # Windows __init__ code. # Get a pair of connected sockets. The trigger is the 'w' # end of the pair, which is connected to 'r'. 'r' is put # in the asyncore socket map. "pulling the trigger" then # means writing something on w, which will wake up r. w = socket.socket() # Disable buffering -- pulling the trigger sends 1 byte, # and we want that sent immediately, to wake up asyncore's # select() ASAP. w.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1) count = 0 while 1: count += 1 # Bind to a local port; for efficiency, let the OS pick # a free port for us. # Unfortunately, stress tests showed that we may not # be able to connect to that port ("Address already in # use") despite that the OS picked it. This appears # to be a race bug in the Windows socket implementation. # So we loop until a connect() succeeds (almost always # on the first try). See the long thread at # http://mail.zope.org/pipermail/zope/2005-July/160433.html # for hideous details. a = socket.socket() a.bind(("127.0.0.1", 0)) connect_address = a.getsockname() # assigned (host, port) pair a.listen(1) try: w.connect(connect_address) break # success except socket.error as detail: if detail[0] != errno.WSAEADDRINUSE: # "Address already in use" is the only error # I've seen on two WinXP Pro SP2 boxes, under # Pythons 2.3.5 and 2.4.1. raise # (10048, 'Address already in use') # assert count <= 2 # never triggered in Tim's tests if count >= 10: # I've never seen it go above 2 a.close() w.close() raise BindError("Cannot bind trigger!") # Close `a` and try again. Note: I originally put a short # sleep() here, but it didn't appear to help or hurt. a.close() r, addr = a.accept() # r becomes asyncore's(self.)socket a.close() self.trigger = w asyncore.dispatcher.__init__(self, r) self.lock = thread.allocate_lock() self.thunks = [] self._trigger_connected = 0
