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sendmsg(2) and recvmsg(2) support for Python.
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Send a message on a socket.
@param socket: The socket to send the message on.
@param data: Bytes to write to the socket.
@param ancillary: Extra data to send over the socket outside of the normal
datagram or stream mechanism. By default no ancillary data is sent.
@param flags: Flags to affect how the message is sent. See the C{MSG_}
constants in the sendmsg(2) manual page. By default no flags are set.
@return: The return value of the underlying syscall, if it succeeds.
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Receive a message on a socket.
@param socket: The socket to receive the message on.
@param maxSize: The maximum number of bytes to receive from the socket using
the datagram or stream mechanism. The default maximum is 8192.
@param cmsgSize: The maximum number of bytes to receive from the socket
outside of the normal datagram or stream mechanism. The default maximum
is 4096.
@param flags: Flags to affect how the message is sent. See the C{MSG_}
constants in the sendmsg(2) manual page. By default no flags are set.
@return: A named 3-tuple of the bytes received using the datagram/stream
mechanism, a L{list} of L{tuple}s giving ancillary received data, and
flags as an L{int} describing the data received.
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Return the family of the given socket.
@param socket: The socket to get the family of.
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