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UDP support for IOCP reactor
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UDP port, listening for packets.
@ivar addressFamily: L{socket.AF_INET} or L{socket.AF_INET6}, depending on
whether this port is listening on an IPv4 address or an IPv6 address.
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Initialize with a numeric port to listen on.
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Resolve address family for the socket.
znot an IPv4 or IPv6 addressN) r r r �AF_INET6r r �AF_INETr �InvalidAddressError�r& r+ r+ r, r @ s
�zPort._setAddressFamilyc C s. | j d k r d| jj| j f S d| jjf S d S )Nz
<%s on %s>z<%s not connected>)�_realPortNumberr � __class__r0 r+ r+ r, �__repr__M s
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Return a socket object.
)r r0 r+ r+ r, � getHandleU s zPort.getHandlec C s | � � | �� dS )z�
Create and bind my socket, and begin listening on it.
This is called on unserialization, and must be called after creating a
server to begin listening on the specified port.
N)� _bindSocket�_connectToProtocolr0 r+ r+ r, �startListening\ s zPort.startListeningc C s | j �| j| j�S �N)r) � createSocketr r r0 r+ r+ r, r9 g s zPort.createSocketc
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�zPort._bindSocketc C s$ | j �| � | �� | j�| � d S r8 )r ZmakeConnectionZ startReadingr) ZaddActiveHandler0 r+ r+ r, r6 ~ s zPort._connectToProtocolc C s | j r | �|||� | �� d S r8 )Zreading�
handleRead�doRead�r& �rc�data�evtr+ r+ r, �cbRead� s z Port.cbReadc C s� |t jt jttfkr&| jr�| j�� n`|rHt� dt j
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addr_len_buffZrecvfromr? r rA )r& rF rN rO rR rD rE r+ r+ r, rB � s � z Port.doReadc
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Write a datagram.
@param addr: should be a tuple (ip, port), can be None in connected
mode.
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writeSequence� s zPort.writeSequencec C sH | j rtd��t|�s*t|�s*t�|d��||f| _ | j�||f� dS )z-
'Connect' to remote server.
z\already connected, reconnecting is not currently supported (talk to itamar if you want this)z not an IPv4 or IPv6 address.N)r � RuntimeErrorr r r r/ r �connect)r& Zhostr r+ r+ r, r] � s � �
z Port.connectc C s. | � � | j�| � | jr*| j�d| j� d S rQ )Z stopReadingr) ZremoveActiveHandler> Z callLater�connectionLostr0 r+ r+ r, �_loseConnection� s zPort._loseConnectionc C s& | j rt�� }| _nd }| �� |S r8 )r> r ZDeferred�dr_ )r& �resultr+ r+ r, �
stopListening� s
zPort.stopListeningc C s t jdtdd� | �� d S )Nz-Please use stopListening() to disconnect port� )�
stacklevel)�warnings�warn�DeprecationWarningrb r0 r+ r+ r, �loseConnection� s
�zPort.loseConnectionc C s^ t �d| j � d| _tj�| |� | j�� | j� � | `| `
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Cleans up my socket.
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zPort.connectionLostc C s | � | j�}d| | _dS )zP
Initialize the C{logstr} attribute to be used by C{logPrefix}.
z%s (UDP)N)r= r �logstr)r& � logPrefixr+ r+ r, r s zPort.setLogStrc C s | j S )zK
Returns the name of my class, to prefix log entries with.
)rm r0 r+ r+ r, rn s zPort.logPrefixc C sJ | j �� }| jt jkr$tjd|�� S | jt jkrFtjd|dd� �� S dS )z�
Return the local address of the UDP connection
@returns: the local address of the UDP connection
@rtype: L{IPv4Address} or L{IPv6Address}
�UDPNrc )ro )ro )r r; r r. r Z IPv4Addressr- Z IPv6Address�r& rW r+ r+ r, �getHost$ s
z Port.getHostc C s | j �t jt j|� dS )z�
Set whether this port may broadcast. This is disabled by default.
@param enabled: Whether the port may broadcast.
@type enabled: L{bool}
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Checks if broadcast is currently allowed on this port.
@return: Whether this port may broadcast.
@rtype: L{bool}
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getsockoptrs rt r0 r+ r+ r, �getBroadcastAllowed= s �zPort.getBroadcastAllowed)r r N)N)N)"�__name__�
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Implement multicast functionality.
c C s$ | j �t jt j�}t �t�d|��S )Nz@i)r ry �
IPPROTO_IP�IP_MULTICAST_IFZ inet_ntoar$ �pack)r& r r+ r+ r, �getOutgoingInterfaceO s z#MulticastMixin.getOutgoingInterfacec C s | j �|��| j�S )z.
Returns Deferred of success.
)r) �resolve� addCallback�
_setInterfacerp r+ r+ r, �setOutgoingInterfaceT s z#MulticastMixin.setOutgoingInterfacec C s" t �|�}| j �t jt j|� dS )Nr: )r � inet_atonrr r� r� )r& rW r r+ r+ r, r� [ s
z MulticastMixin._setInterfacec C s | j �t jt j�S r8 )r ry r� �IP_MULTICAST_LOOPr0 r+ r+ r, �getLoopbackModea s
�z MulticastMixin.getLoopbackModec C s* t �dt�|��}| j�tjtj|� d S )N�b)r$ r� rw rx r rr r� r� )r& �moder+ r+ r, �setLoopbackModef s �z MulticastMixin.setLoopbackModec C s | j �t jt j�S r8 )r ry r� �IP_MULTICAST_TTLr0 r+ r+ r, �getTTLl s
�zMulticastMixin.getTTLc C s$ t �d|�}| j�tjtj|� d S )N�B)r$ r� r rr r� r� )r& Zttlr+ r+ r, �setTTLq s zMulticastMixin.setTTLr c C s | j �|��| j|d�S )zF
Join a multicast group. Returns Deferred of success.
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_joinAddr1�r& rW r r+ r+ r, � joinGroupv s �zMulticastMixin.joinGroupc C s | j �|��| j||�S r8 )r) r� r� �
_joinAddr2)r& rW r rY r+ r+ r, r� ~ s �zMulticastMixin._joinAddr1c
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�zMulticastMixin._joinAddr2c C s | j �|��| j|d�S )zD
Leave multicast group, return Deferred of success.
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leaveGroup� s �zMulticastMixin.leaveGroupN)r )r )r{ r| r} r~ r� r� r� r� r� r� r� r� r� r� r� r+ r+ r+ r, r I s
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MulticastPortz.
UDP Port that supports multicasting.
r r NFc C s t �| |||||� || _d S r8 )r r �listenMultiple)r& r r' r r( r) r� r+ r+ r, r � s zMulticastPort.__init__c C sB t �| �}| jr>|�tjtjd� ttd�r>|�tjtjd� |S )Nr: � SO_REUSEPORT) r r9 r� rr r rs Z SO_REUSEADDRrj r� )r& r* r+ r+ r, r9 � s
zMulticastPort.createSocket)r r NF)r{ r| r} r~ r r9 r+ r+ r+ r, r� � s �
r� )%r~ r rw r$ re rH Zzope.interfacer Ztwisted.internetr r r r Ztwisted.internet.abstractr r Ztwisted.pythonr r
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