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trsock.py
import socket import warnings class TransportSocket: """A socket-like wrapper for exposing real transport sockets. These objects can be safely returned by APIs like `transport.get_extra_info('socket')`. All potentially disruptive operations (like "socket.close()") are banned. """ __slots__ = ('_sock',) def __init__(self, sock: socket.socket): self._sock = sock def _na(self, what): warnings.warn( f"Using {what} on sockets returned from get_extra_info('socket') " f"will be prohibited in asyncio 3.9. Please report your use case " f"to bugs.python.org.", DeprecationWarning, source=self) @property def family(self): return self._sock.family @property def type(self): return self._sock.type @property def proto(self): return self._sock.proto def __repr__(self): s = ( f"<asyncio.TransportSocket fd={self.fileno()}, " f"family={self.family!s}, type={self.type!s}, " f"proto={self.proto}" ) if self.fileno() != -1: try: laddr = self.getsockname() if laddr: s = f"{s}, laddr={laddr}" except socket.error: pass try: raddr = self.getpeername() if raddr: s = f"{s}, raddr={raddr}" except socket.error: pass return f"{s}>" def __getstate__(self): raise TypeError("Cannot serialize asyncio.TransportSocket object") def fileno(self): return self._sock.fileno() def dup(self): return self._sock.dup() def get_inheritable(self): return self._sock.get_inheritable() def shutdown(self, how): # asyncio doesn't currently provide a high-level transport API # to shutdown the connection. self._sock.shutdown(how) def getsockopt(self, *args, **kwargs): return self._sock.getsockopt(*args, **kwargs) def setsockopt(self, *args, **kwargs): self._sock.setsockopt(*args, **kwargs) def getpeername(self): return self._sock.getpeername() def getsockname(self): return self._sock.getsockname() def getsockbyname(self): return self._sock.getsockbyname() def accept(self): self._na('accept() method') return self._sock.accept() def connect(self, *args, **kwargs): self._na('connect() method') return self._sock.connect(*args, **kwargs) def connect_ex(self, *args, **kwargs): self._na('connect_ex() method') return self._sock.connect_ex(*args, **kwargs) def bind(self, *args, **kwargs): self._na('bind() method') return self._sock.bind(*args, **kwargs) def ioctl(self, *args, **kwargs): self._na('ioctl() method') return self._sock.ioctl(*args, **kwargs) def listen(self, *args, **kwargs): self._na('listen() method') return self._sock.listen(*args, **kwargs) def makefile(self): self._na('makefile() method') return self._sock.makefile() def sendfile(self, *args, **kwargs): self._na('sendfile() method') return self._sock.sendfile(*args, **kwargs) def close(self): self._na('close() method') return self._sock.close() def detach(self): self._na('detach() method') return self._sock.detach() def sendmsg_afalg(self, *args, **kwargs): self._na('sendmsg_afalg() method') return self._sock.sendmsg_afalg(*args, **kwargs) def sendmsg(self, *args, **kwargs): self._na('sendmsg() method') return self._sock.sendmsg(*args, **kwargs) def sendto(self, *args, **kwargs): self._na('sendto() method') return self._sock.sendto(*args, **kwargs) def send(self, *args, **kwargs): self._na('send() method') return self._sock.send(*args, **kwargs) def sendall(self, *args, **kwargs): self._na('sendall() method') return self._sock.sendall(*args, **kwargs) def set_inheritable(self, *args, **kwargs): self._na('set_inheritable() method') return self._sock.set_inheritable(*args, **kwargs) def share(self, process_id): self._na('share() method') return self._sock.share(process_id) def recv_into(self, *args, **kwargs): self._na('recv_into() method') return self._sock.recv_into(*args, **kwargs) def recvfrom_into(self, *args, **kwargs): self._na('recvfrom_into() method') return self._sock.recvfrom_into(*args, **kwargs) def recvmsg_into(self, *args, **kwargs): self._na('recvmsg_into() method') return self._sock.recvmsg_into(*args, **kwargs) def recvmsg(self, *args, **kwargs): self._na('recvmsg() method') return self._sock.recvmsg(*args, **kwargs) def recvfrom(self, *args, **kwargs): self._na('recvfrom() method') return self._sock.recvfrom(*args, **kwargs) def recv(self, *args, **kwargs): self._na('recv() method') return self._sock.recv(*args, **kwargs) def settimeout(self, value): if value == 0: return raise ValueError( 'settimeout(): only 0 timeout is allowed on transport sockets') def gettimeout(self): return 0 def setblocking(self, flag): if not flag: return raise ValueError( 'setblocking(): transport sockets cannot be blocking') def __enter__(self): self._na('context manager protocol') return self._sock.__enter__() def __exit__(self, *err): self._na('context manager protocol') return self._sock.__exit__(*err)
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