Function sendfds

Lib/multiprocessing/reduction.py:142–148

Send an array of fds over an AF_UNIX socket.

(sock, fds)

    import array

    def sendfds(sock, fds):
        '''Send an array of fds over an AF_UNIX socket.'''
        fds = array.array('i', fds)
        msg = bytes([len(fds) % 256])
        sock.sendmsg([msg], [(socket.SOL_SOCKET, socket.SCM_RIGHTS, fds)])
        if sock.recv(1) != b'A':
            raise RuntimeError('did not receive acknowledgement of fd')

    def recvfds(sock, size):
        '''Receive an array of fds over an AF_UNIX socket.'''