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99 lines
2.4 KiB
Python
99 lines
2.4 KiB
Python
import socket
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class TransportSocket:
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"""A socket-like wrapper for exposing real transport sockets.
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These objects can be safely returned by APIs like
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`transport.get_extra_info('socket')`. All potentially disruptive
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operations (like "socket.close()") are banned.
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"""
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__slots__ = ('_sock',)
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def __init__(self, sock: socket.socket):
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self._sock = sock
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@property
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def family(self):
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return self._sock.family
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@property
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def type(self):
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return self._sock.type
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@property
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def proto(self):
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return self._sock.proto
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def __repr__(self):
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s = (
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f"<asyncio.TransportSocket fd={self.fileno()}, "
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f"family={self.family!s}, type={self.type!s}, "
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f"proto={self.proto}"
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)
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if self.fileno() != -1:
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try:
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laddr = self.getsockname()
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if laddr:
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s = f"{s}, laddr={laddr}"
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except socket.error:
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pass
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try:
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raddr = self.getpeername()
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if raddr:
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s = f"{s}, raddr={raddr}"
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except socket.error:
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pass
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return f"{s}>"
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def __getstate__(self):
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raise TypeError("Cannot serialize asyncio.TransportSocket object")
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def fileno(self):
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return self._sock.fileno()
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def dup(self):
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return self._sock.dup()
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def get_inheritable(self):
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return self._sock.get_inheritable()
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def shutdown(self, how):
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# asyncio doesn't currently provide a high-level transport API
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# to shutdown the connection.
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self._sock.shutdown(how)
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def getsockopt(self, *args, **kwargs):
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return self._sock.getsockopt(*args, **kwargs)
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def setsockopt(self, *args, **kwargs):
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self._sock.setsockopt(*args, **kwargs)
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def getpeername(self):
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return self._sock.getpeername()
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def getsockname(self):
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return self._sock.getsockname()
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def getsockbyname(self):
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return self._sock.getsockbyname()
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def settimeout(self, value):
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if value == 0:
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return
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raise ValueError(
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'settimeout(): only 0 timeout is allowed on transport sockets')
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def gettimeout(self):
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return 0
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def setblocking(self, flag):
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if not flag:
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return
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raise ValueError(
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'setblocking(): transport sockets cannot be blocking')
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