File: //usr/lib/python3/dist-packages/twisted/internet/__pycache__/interfaces.cpython-38.pyc
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Interface documentation.
Maintainer: Itamar Shtull-Trauring
� )�division�absolute_import)� Interface� Attributec @ s e Zd ZdZdS )�IAddresszr
An address, e.g. a TCP C{(host, port)}.
Default implementations are in L{twisted.internet.address}.
N��__name__�
__module__� __qualname__�__doc__� r r �=/usr/lib/python3/dist-packages/twisted/internet/interfaces.pyr s r c @ s0 e Zd ZdZdd� Zdd� Zdd� Zdd � Zd
S ) �
IConnectorzu
Object used to interface between connections and protocols.
Each L{IConnector} manages one connection.
c C s dS )z-
Stop attempting to connect.
Nr r r r r
�stopConnecting s zIConnector.stopConnectingc C s dS )z�
Disconnect regardless of the connection state.
If we are connected, disconnect, if we are trying to connect,
stop trying.
Nr r r r r
�
disconnect$ s zIConnector.disconnectc C s dS )z3
Try to connect to remote address.
Nr r r r r
�connect, s zIConnector.connectc C s dS )zy
Return destination this will try to connect to.
@return: An object which provides L{IAddress}.
Nr r r r r
�getDestination1 s zIConnector.getDestinationN)r r r
r r r r r r r r r
r s
r c @ s e Zd Zddd�ZdS )�IResolverSimple�� � � �- c C s dS )aO
Resolve the domain name C{name} into an IP address.
@type name: C{str}
@param name: DNS name to resolve.
@type timeout: Sequence of C{int}
@param timeout: Number of seconds after which to reissue the query.
When the last timeout expires, the query is considered failed.
@rtype: L{twisted.internet.defer.Deferred}
@return: The callback of the Deferred that is returned will be
passed a string that represents the IP address of the
specified name, or the errback will be called if the
lookup times out. If multiple types of address records
are associated with the name, A6 records will be returned
in preference to AAAA records, which will be returned in
preference to A records. If there are multiple records of
the type to be returned, one will be selected at random.
@raise twisted.internet.defer.TimeoutError: Raised
(asynchronously) if the name cannot be resolved within the
specified timeout period.
Nr ��name�timeoutr r r
�
getHostByName; s z IResolverSimple.getHostByNameN)r )r r r
r r r r r
r : s r c @ s e Zd ZdZed�Zdd� ZdS )�IHostResolutionz�
An L{IHostResolution} represents represents an in-progress recursive query
for a DNS name.
@since: Twisted 17.1.0
zB
L{unicode}; the name of the host being resolved.
c C s dS )z;
Stop the hostname resolution in progress.
Nr r r r r
�cancele s zIHostResolution.cancelN)r r r
r r r r r r r r
r W s
�r c @ s( e Zd ZdZdd� Zdd� Zdd� ZdS ) �IResolutionReceiverz�
An L{IResolutionReceiver} receives the results of a hostname resolution in
progress, initiated by an L{IHostnameResolver}.
@since: Twisted 17.1.0
c C s dS )zk
A hostname resolution began.
@param resolutionInProgress: an L{IHostResolution}.
Nr )ZresolutionInProgressr r r
�resolutionBegant s z#IResolutionReceiver.resolutionBeganc C s dS )a�
An internet address. This is called when an address for the given name
is discovered. In the current implementation this practically means
L{IPv4Address} or L{IPv6Address}, but implementations of this interface
should be lenient to other types being passed to this interface as
well, for future-proofing.
@param address: An address object.
@type address: L{IAddress}
Nr )�addressr r r
�addressResolved| s z#IResolutionReceiver.addressResolvedc C s dS )z�
Resolution has completed; no further addresses will be relayed to
L{IResolutionReceiver.addressResolved}.
Nr r r r r
�resolutionComplete� s z&IResolutionReceiver.resolutionCompleteN)r r r
r r r" r# r r r r
r l s
r c @ s e Zd ZdZddd�ZdS )�IHostnameResolverz�
An L{IHostnameResolver} can resolve a host name and port number into a
series of L{IAddress} objects.
@since: Twisted 17.1.0
r N�TCPc C s dS )a�
Initiate a hostname resolution.
@param resolutionReceiver: an object that will receive each resolved
address as it arrives.
@type resolutionReceiver: L{IResolutionReceiver}
@param hostName: The name of the host to resolve. If this contains
non-ASCII code points, they will be converted to IDNA first.
@type hostName: L{unicode}
@param portNumber: The port number that the returned addresses should
include.
@type portNumber: L{int} greater than or equal to 0 and less than 65536
@param addressTypes: An iterable of implementors of L{IAddress} that
are acceptable values for C{resolutionReceiver} to receive to its
L{addressResolved <IResolutionReceiver.addressResolved>}. In
practice, this means an iterable containing
L{twisted.internet.address.IPv4Address},
L{twisted.internet.address.IPv6Address}, both, or neither.
@type addressTypes: L{collections.abc.Iterable} of L{type}
@param transportSemantics: A string describing the semantics of the
transport; either C{'TCP'} for stream-oriented transports or
C{'UDP'} for datagram-oriented; see
L{twisted.internet.address.IPv6Address.type} and
L{twisted.internet.address.IPv4Address.type}.
@type transportSemantics: native L{str}
@return: The resolution in progress.
@rtype: L{IResolutionReceiver}
Nr )ZresolutionReceiverZhostNameZ
portNumberZ addressTypesZtransportSemanticsr r r
�resolveHostName� s z!IHostnameResolver.resolveHostName)r Nr% )r r r
r r& r r r r
r$ � s
�r$ c @ s� e Zd Zd3dd�Zd4dd�Zd5dd�Zd6dd �Zd7d
d �Zd8d d
�Zd9dd�Z d:dd�Z
d;dd�Z d<dd�Z d=dd�Z
d>dd�Zd?dd�Zd@d d �ZdAd d �ZdBd d!�ZdCd"d#�ZdDd$d%�ZdEd&d'�ZdFd(d)�ZdGd*d+�ZdHd-d.�ZdId/d0�ZdJd1d2�ZdS )K� IResolverNc C s dS )a�
Dispatch C{query} to the method which can handle its type.
@type query: L{twisted.names.dns.Query}
@param query: The DNS query being issued, to which a response is to be
generated.
@type timeout: Sequence of C{int}
@param timeout: Number of seconds after which to reissue the query.
When the last timeout expires, the query is considered failed.
@rtype: L{Deferred}
@return: A L{Deferred} which fires with a three-tuple of lists of
L{twisted.names.dns.RRHeader} instances. The first element of the
tuple gives answers. The second element of the tuple gives
authorities. The third element of the tuple gives additional
information. The L{Deferred} may instead fail with one of the
exceptions defined in L{twisted.names.error} or with
C{NotImplementedError}.
Nr )�queryr r r r
r( � s zIResolver.queryc C s dS )a/
Perform an A record lookup.
@type name: L{bytes}
@param name: DNS name to resolve.
@type timeout: Sequence of C{int}
@param timeout: Number of seconds after which to reissue the query.
When the last timeout expires, the query is considered failed.
@rtype: L{Deferred}
@return: A L{Deferred} which fires with a three-tuple of lists of
L{twisted.names.dns.RRHeader} instances. The first element of the
tuple gives answers. The second element of the tuple gives
authorities. The third element of the tuple gives additional
information. The L{Deferred} may instead fail with one of the
exceptions defined in L{twisted.names.error} or with
C{NotImplementedError}.
Nr r r r r
�
lookupAddress� s zIResolver.lookupAddressc C s dS )a.
Perform an A6 record lookup.
@type name: C{str}
@param name: DNS name to resolve.
@type timeout: Sequence of C{int}
@param timeout: Number of seconds after which to reissue the query.
When the last timeout expires, the query is considered failed.
@rtype: L{Deferred}
@return: A L{Deferred} which fires with a three-tuple of lists of
L{twisted.names.dns.RRHeader} instances. The first element of the
tuple gives answers. The second element of the tuple gives
authorities. The third element of the tuple gives additional
information. The L{Deferred} may instead fail with one of the
exceptions defined in L{twisted.names.error} or with
C{NotImplementedError}.
Nr r r r r
�lookupAddress6� s zIResolver.lookupAddress6c C s dS )a0
Perform an AAAA record lookup.
@type name: C{str}
@param name: DNS name to resolve.
@type timeout: Sequence of C{int}
@param timeout: Number of seconds after which to reissue the query.
When the last timeout expires, the query is considered failed.
@rtype: L{Deferred}
@return: A L{Deferred} which fires with a three-tuple of lists of
L{twisted.names.dns.RRHeader} instances. The first element of the
tuple gives answers. The second element of the tuple gives
authorities. The third element of the tuple gives additional
information. The L{Deferred} may instead fail with one of the
exceptions defined in L{twisted.names.error} or with
C{NotImplementedError}.
Nr r r r r
�lookupIPV6Address s zIResolver.lookupIPV6Addressc C s dS )a.
Perform an MX record lookup.
@type name: C{str}
@param name: DNS name to resolve.
@type timeout: Sequence of C{int}
@param timeout: Number of seconds after which to reissue the query.
When the last timeout expires, the query is considered failed.
@rtype: L{Deferred}
@return: A L{Deferred} which fires with a three-tuple of lists of
L{twisted.names.dns.RRHeader} instances. The first element of the
tuple gives answers. The second element of the tuple gives
authorities. The third element of the tuple gives additional
information. The L{Deferred} may instead fail with one of the
exceptions defined in L{twisted.names.error} or with
C{NotImplementedError}.
Nr r r r r
�lookupMailExchange s z IResolver.lookupMailExchangec C s dS )a.
Perform an NS record lookup.
@type name: C{str}
@param name: DNS name to resolve.
@type timeout: Sequence of C{int}
@param timeout: Number of seconds after which to reissue the query.
When the last timeout expires, the query is considered failed.
@rtype: L{Deferred}
@return: A L{Deferred} which fires with a three-tuple of lists of
L{twisted.names.dns.RRHeader} instances. The first element of the
tuple gives answers. The second element of the tuple gives
authorities. The third element of the tuple gives additional
information. The L{Deferred} may instead fail with one of the
exceptions defined in L{twisted.names.error} or with
C{NotImplementedError}.
Nr r r r r
�lookupNameservers/ s zIResolver.lookupNameserversc C s dS )a0
Perform a CNAME record lookup.
@type name: C{str}
@param name: DNS name to resolve.
@type timeout: Sequence of C{int}
@param timeout: Number of seconds after which to reissue the query.
When the last timeout expires, the query is considered failed.
@rtype: L{Deferred}
@return: A L{Deferred} which fires with a three-tuple of lists of
L{twisted.names.dns.RRHeader} instances. The first element of the
tuple gives answers. The second element of the tuple gives
authorities. The third element of the tuple gives additional
information. The L{Deferred} may instead fail with one of the
exceptions defined in L{twisted.names.error} or with
C{NotImplementedError}.
Nr r r r r
�lookupCanonicalNameE s z IResolver.lookupCanonicalNamec C s dS )a.
Perform an MB record lookup.
@type name: C{str}
@param name: DNS name to resolve.
@type timeout: Sequence of C{int}
@param timeout: Number of seconds after which to reissue the query.
When the last timeout expires, the query is considered failed.
@rtype: L{Deferred}
@return: A L{Deferred} which fires with a three-tuple of lists of
L{twisted.names.dns.RRHeader} instances. The first element of the
tuple gives answers. The second element of the tuple gives
authorities. The third element of the tuple gives additional
information. The L{Deferred} may instead fail with one of the
exceptions defined in L{twisted.names.error} or with
C{NotImplementedError}.
Nr r r r r
�
lookupMailBox[ s zIResolver.lookupMailBoxc C s dS )a.
Perform an MG record lookup.
@type name: C{str}
@param name: DNS name to resolve.
@type timeout: Sequence of C{int}
@param timeout: Number of seconds after which to reissue the query.
When the last timeout expires, the query is considered failed.
@rtype: L{Deferred}
@return: A L{Deferred} which fires with a three-tuple of lists of
L{twisted.names.dns.RRHeader} instances. The first element of the
tuple gives answers. The second element of the tuple gives
authorities. The third element of the tuple gives additional
information. The L{Deferred} may instead fail with one of the
exceptions defined in L{twisted.names.error} or with
C{NotImplementedError}.
Nr r r r r
�lookupMailGroupq s zIResolver.lookupMailGroupc C s dS )a.
Perform an MR record lookup.
@type name: C{str}
@param name: DNS name to resolve.
@type timeout: Sequence of C{int}
@param timeout: Number of seconds after which to reissue the query.
When the last timeout expires, the query is considered failed.
@rtype: L{Deferred}
@return: A L{Deferred} which fires with a three-tuple of lists of
L{twisted.names.dns.RRHeader} instances. The first element of the
tuple gives answers. The second element of the tuple gives
authorities. The third element of the tuple gives additional
information. The L{Deferred} may instead fail with one of the
exceptions defined in L{twisted.names.error} or with
C{NotImplementedError}.
Nr r r r r
�lookupMailRename� s zIResolver.lookupMailRenamec C s dS )a.
Perform a PTR record lookup.
@type name: C{str}
@param name: DNS name to resolve.
@type timeout: Sequence of C{int}
@param timeout: Number of seconds after which to reissue the query.
When the last timeout expires, the query is considered failed.
@rtype: L{Deferred}
@return: A L{Deferred} which fires with a three-tuple of lists of
L{twisted.names.dns.RRHeader} instances. The first element of the
tuple gives answers. The second element of the tuple gives
authorities. The third element of the tuple gives additional
information. The L{Deferred} may instead fail with one of the
exceptions defined in L{twisted.names.error} or with
C{NotImplementedError}.
Nr r r r r
�
lookupPointer� s zIResolver.lookupPointerc C s dS )a/
Perform an SOA record lookup.
@type name: C{str}
@param name: DNS name to resolve.
@type timeout: Sequence of C{int}
@param timeout: Number of seconds after which to reissue the query.
When the last timeout expires, the query is considered failed.
@rtype: L{Deferred}
@return: A L{Deferred} which fires with a three-tuple of lists of
L{twisted.names.dns.RRHeader} instances. The first element of the
tuple gives answers. The second element of the tuple gives
authorities. The third element of the tuple gives additional
information. The L{Deferred} may instead fail with one of the
exceptions defined in L{twisted.names.error} or with
C{NotImplementedError}.
Nr r r r r
�lookupAuthority� s zIResolver.lookupAuthorityc C s dS )a/
Perform a NULL record lookup.
@type name: C{str}
@param name: DNS name to resolve.
@type timeout: Sequence of C{int}
@param timeout: Number of seconds after which to reissue the query.
When the last timeout expires, the query is considered failed.
@rtype: L{Deferred}
@return: A L{Deferred} which fires with a three-tuple of lists of
L{twisted.names.dns.RRHeader} instances. The first element of the
tuple gives answers. The second element of the tuple gives
authorities. The third element of the tuple gives additional
information. The L{Deferred} may instead fail with one of the
exceptions defined in L{twisted.names.error} or with
C{NotImplementedError}.
Nr r r r r
�
lookupNull� s zIResolver.lookupNullc C s dS )a.
Perform a WKS record lookup.
@type name: C{str}
@param name: DNS name to resolve.
@type timeout: Sequence of C{int}
@param timeout: Number of seconds after which to reissue the query.
When the last timeout expires, the query is considered failed.
@rtype: L{Deferred}
@return: A L{Deferred} which fires with a three-tuple of lists of
L{twisted.names.dns.RRHeader} instances. The first element of the
tuple gives answers. The second element of the tuple gives
authorities. The third element of the tuple gives additional
information. The L{Deferred} may instead fail with one of the
exceptions defined in L{twisted.names.error} or with
C{NotImplementedError}.
Nr r r r r
�lookupWellKnownServices� s z!IResolver.lookupWellKnownServicesc C s dS )a0
Perform a HINFO record lookup.
@type name: C{str}
@param name: DNS name to resolve.
@type timeout: Sequence of C{int}
@param timeout: Number of seconds after which to reissue the query.
When the last timeout expires, the query is considered failed.
@rtype: L{Deferred}
@return: A L{Deferred} which fires with a three-tuple of lists of
L{twisted.names.dns.RRHeader} instances. The first element of the
tuple gives answers. The second element of the tuple gives
authorities. The third element of the tuple gives additional
information. The L{Deferred} may instead fail with one of the
exceptions defined in L{twisted.names.error} or with
C{NotImplementedError}.
Nr r r r r
�lookupHostInfo� s zIResolver.lookupHostInfoc C s dS )a1
Perform an MINFO record lookup.
@type name: C{str}
@param name: DNS name to resolve.
@type timeout: Sequence of C{int}
@param timeout: Number of seconds after which to reissue the query.
When the last timeout expires, the query is considered failed.
@rtype: L{Deferred}
@return: A L{Deferred} which fires with a three-tuple of lists of
L{twisted.names.dns.RRHeader} instances. The first element of the
tuple gives answers. The second element of the tuple gives
authorities. The third element of the tuple gives additional
information. The L{Deferred} may instead fail with one of the
exceptions defined in L{twisted.names.error} or with
C{NotImplementedError}.
Nr r r r r
�lookupMailboxInfo s zIResolver.lookupMailboxInfoc C s dS )a.
Perform a TXT record lookup.
@type name: C{str}
@param name: DNS name to resolve.
@type timeout: Sequence of C{int}
@param timeout: Number of seconds after which to reissue the query.
When the last timeout expires, the query is considered failed.
@rtype: L{Deferred}
@return: A L{Deferred} which fires with a three-tuple of lists of
L{twisted.names.dns.RRHeader} instances. The first element of the
tuple gives answers. The second element of the tuple gives
authorities. The third element of the tuple gives additional
information. The L{Deferred} may instead fail with one of the
exceptions defined in L{twisted.names.error} or with
C{NotImplementedError}.
Nr r r r r
�
lookupText! s zIResolver.lookupTextc C s dS )a.
Perform an RP record lookup.
@type name: C{str}
@param name: DNS name to resolve.
@type timeout: Sequence of C{int}
@param timeout: Number of seconds after which to reissue the query.
When the last timeout expires, the query is considered failed.
@rtype: L{Deferred}
@return: A L{Deferred} which fires with a three-tuple of lists of
L{twisted.names.dns.RRHeader} instances. The first element of the
tuple gives answers. The second element of the tuple gives
authorities. The third element of the tuple gives additional
information. The L{Deferred} may instead fail with one of the
exceptions defined in L{twisted.names.error} or with
C{NotImplementedError}.
Nr r r r r
�lookupResponsibility7 s z IResolver.lookupResponsibilityc C s dS )a1
Perform an AFSDB record lookup.
@type name: C{str}
@param name: DNS name to resolve.
@type timeout: Sequence of C{int}
@param timeout: Number of seconds after which to reissue the query.
When the last timeout expires, the query is considered failed.
@rtype: L{Deferred}
@return: A L{Deferred} which fires with a three-tuple of lists of
L{twisted.names.dns.RRHeader} instances. The first element of the
tuple gives answers. The second element of the tuple gives
authorities. The third element of the tuple gives additional
information. The L{Deferred} may instead fail with one of the
exceptions defined in L{twisted.names.error} or with
C{NotImplementedError}.
Nr r r r r
�lookupAFSDatabaseM s zIResolver.lookupAFSDatabasec C s dS )a/
Perform an SRV record lookup.
@type name: C{str}
@param name: DNS name to resolve.
@type timeout: Sequence of C{int}
@param timeout: Number of seconds after which to reissue the query.
When the last timeout expires, the query is considered failed.
@rtype: L{Deferred}
@return: A L{Deferred} which fires with a three-tuple of lists of
L{twisted.names.dns.RRHeader} instances. The first element of the
tuple gives answers. The second element of the tuple gives
authorities. The third element of the tuple gives additional
information. The L{Deferred} may instead fail with one of the
exceptions defined in L{twisted.names.error} or with
C{NotImplementedError}.
Nr r r r r
�
lookupServicec s zIResolver.lookupServicec C s dS )a/
Perform an ALL_RECORD lookup.
@type name: C{str}
@param name: DNS name to resolve.
@type timeout: Sequence of C{int}
@param timeout: Number of seconds after which to reissue the query.
When the last timeout expires, the query is considered failed.
@rtype: L{Deferred}
@return: A L{Deferred} which fires with a three-tuple of lists of
L{twisted.names.dns.RRHeader} instances. The first element of the
tuple gives answers. The second element of the tuple gives
authorities. The third element of the tuple gives additional
information. The L{Deferred} may instead fail with one of the
exceptions defined in L{twisted.names.error} or with
C{NotImplementedError}.
Nr r r r r
�lookupAllRecordsy s zIResolver.lookupAllRecords�
c C s dS )a.
Perform a SPF record lookup.
@type name: C{str}
@param name: DNS name to resolve.
@type timeout: Sequence of C{int}
@param timeout: Number of seconds after which to reissue the query.
When the last timeout expires, the query is considered failed.
@rtype: L{Deferred}
@return: A L{Deferred} which fires with a three-tuple of lists of
L{twisted.names.dns.RRHeader} instances. The first element of the
tuple gives answers. The second element of the tuple gives
authorities. The third element of the tuple gives additional
information. The L{Deferred} may instead fail with one of the
exceptions defined in L{twisted.names.error} or with
C{NotImplementedError}.
Nr r r r r
�lookupSenderPolicy� s z IResolver.lookupSenderPolicyc C s dS )a0
Perform a NAPTR record lookup.
@type name: C{str}
@param name: DNS name to resolve.
@type timeout: Sequence of C{int}
@param timeout: Number of seconds after which to reissue the query.
When the last timeout expires, the query is considered failed.
@rtype: L{Deferred}
@return: A L{Deferred} which fires with a three-tuple of lists of
L{twisted.names.dns.RRHeader} instances. The first element of the
tuple gives answers. The second element of the tuple gives
authorities. The third element of the tuple gives additional
information. The L{Deferred} may instead fail with one of the
exceptions defined in L{twisted.names.error} or with
C{NotImplementedError}.
Nr r r r r
� lookupNamingAuthorityPointer� s z&IResolver.lookupNamingAuthorityPointerc C s dS )a�
Perform an AXFR record lookup.
NB This is quite different from other DNS requests. See
U{http://cr.yp.to/djbdns/axfr-notes.html} for more
information.
NB Unlike other C{lookup*} methods, the timeout here is not a
list of ints, it is a single int.
@type name: C{str}
@param name: DNS name to resolve.
@type timeout: C{int}
@param timeout: When this timeout expires, the query is
considered failed.
@rtype: L{Deferred}
@return: A L{Deferred} which fires with a three-tuple of lists of
L{twisted.names.dns.RRHeader} instances.
The first element of the tuple gives answers.
The second and third elements are always empty.
The L{Deferred} may instead fail with one of the
exceptions defined in L{twisted.names.error} or with
C{NotImplementedError}.
Nr r r r r
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lookupZone� s zIResolver.lookupZone)N)N)N)N)N)N)N)N)N)N)N)N)N)N)N)N)N)N)N)N)N)r= )N)N)r r r
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Connects a given protocol factory to the given numeric TCP/IP port.
@param port: a port number on which to listen
@param factory: a L{twisted.internet.protocol.ServerFactory} instance
@param backlog: size of the listen queue
@param interface: The local IPv4 or IPv6 address to which to bind;
defaults to '', ie all IPv4 addresses. To bind to all IPv4 and IPv6
addresses, you must call this method twice.
@return: an object that provides L{IListeningPort}.
@raise CannotListenError: as defined here
L{twisted.internet.error.CannotListenError},
if it cannot listen on this port (e.g., it
cannot bind to the required port number)
Nr )�port�factory�backlog� interfacer r r
� listenTCP� s zIReactorTCP.listenTCP� Nc C s dS )a
Connect a TCP client.
@param host: A hostname or an IPv4 or IPv6 address literal.
@type host: L{bytes}
@param port: a port number
@param factory: a L{twisted.internet.protocol.ClientFactory} instance
@param timeout: number of seconds to wait before assuming the
connection has failed.
@param bindAddress: a (host, port) tuple of local address to bind
to, or None.
@return: An object which provides L{IConnector}. This connector will
call various callbacks on the factory when a connection is
made, failed, or lost - see
L{ClientFactory<twisted.internet.protocol.ClientFactory>}
docs for details.
Nr )�hostrD rE r � bindAddressr r r
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connectTCP� s zIReactorTCP.connectTCP)rB rC )rI N)r r r
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Connect a client Protocol to a remote SSL socket.
@param host: a host name
@param port: a port number
@param factory: a L{twisted.internet.protocol.ClientFactory} instance
@param contextFactory: a L{twisted.internet.ssl.ClientContextFactory} object.
@param timeout: number of seconds to wait before assuming the
connection has failed.
@param bindAddress: a (host, port) tuple of local address to bind to,
or L{None}.
@return: An object which provides L{IConnector}.
Nr )rJ rD rE �contextFactoryr rK r r r
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connectSSL s zIReactorSSL.connectSSLrB rC c C s dS )a�
Connects a given protocol factory to the given numeric TCP/IP port.
The connection is a SSL one, using contexts created by the context
factory.
@param port: a port number on which to listen
@param factory: a L{twisted.internet.protocol.ServerFactory} instance
@param contextFactory: an implementor of L{IOpenSSLContextFactory}
@param backlog: size of the listen queue
@param interface: the hostname to bind to, defaults to '' (all)
Nr )rD rE rN rF rG r r r
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UNIX socket methods.
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Connect a client protocol to a UNIX socket.
@param address: a path to a unix socket on the filesystem.
@param factory: a L{twisted.internet.protocol.ClientFactory} instance
@param timeout: number of seconds to wait before assuming the connection
has failed.
@param checkPID: if True, check for a pid file to verify that a server
is listening. If C{address} is a Linux abstract namespace path,
this must be C{False}.
@return: An object which provides L{IConnector}.
Nr )r! rE r ZcheckPIDr r r
� connectUNIX9 s zIReactorUNIX.connectUNIXrB � c C s dS )a�
Listen on a UNIX socket.
@param address: a path to a unix socket on the filesystem.
@param factory: a L{twisted.internet.protocol.Factory} instance.
@param backlog: number of connections to allow in backlog.
@param mode: The mode (B{not} umask) to set on the unix socket. See
platform specific documentation for information about how this
might affect connection attempts.
@type mode: C{int}
@param wantPID: if True, create a pidfile for the socket. If C{address}
is a Linux abstract namespace path, this must be C{False}.
@return: An object which provides L{IListeningPort}.
Nr )r! rE rF �modeZwantPIDr r r
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listenUNIXL s zIReactorUNIX.listenUNIXN)rI r )rB rS r )r r r
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Datagram UNIX socket methods.
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Connect a client protocol to a datagram UNIX socket.
@param address: a path to a unix socket on the filesystem.
@param protocol: a L{twisted.internet.protocol.ConnectedDatagramProtocol} instance
@param maxPacketSize: maximum packet size to accept
@param mode: The mode (B{not} umask) to set on the unix socket. See
platform specific documentation for information about how this
might affect connection attempts.
@type mode: C{int}
@param bindAddress: address to bind to
@return: An object which provides L{IConnector}.
Nr )r! �protocol�
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�connectUNIXDatagramh s z(IReactorUNIXDatagram.connectUNIXDatagramc C s dS )a(
Listen on a datagram UNIX socket.
@param address: a path to a unix socket on the filesystem.
@param protocol: a L{twisted.internet.protocol.DatagramProtocol} instance.
@param maxPacketSize: maximum packet size to accept
@param mode: The mode (B{not} umask) to set on the unix socket. See
platform specific documentation for information about how this
might affect connection attempts.
@type mode: C{int}
@return: An object which provides L{IListeningPort}.
Nr )r! rX rY rT r r r
�listenUNIXDatagram} s z'IReactorUNIXDatagram.listenUNIXDatagram)rW rS N)rW rS )r r r
r rZ r[ r r r r
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rV c @ s e Zd ZdZdd� Zdd� ZdS )�IReactorWin32Eventsz3
Win32 Event API methods
@since: 10.2
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Add a new win32 event to the event loop.
@param event: a Win32 event object created using win32event.CreateEvent()
@param fd: an instance of L{twisted.internet.abstract.FileDescriptor}
@param action: a string that is a method name of the fd instance.
This method is called in response to the event.
@return: None
Nr )�event�fd�actionr r r
�addEvent� s z IReactorWin32Events.addEventc C s dS )z�
Remove an event.
@param event: a Win32 event object added using L{IReactorWin32Events.addEvent}
@return: None
Nr )r] r r r
� removeEvent� s z IReactorWin32Events.removeEventN)r r r
r r` ra r r r r
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UDP socket methods.
rC rW c C s dS )a�
Connects a given L{DatagramProtocol} to the given numeric UDP port.
@param port: A port number on which to listen.
@type port: C{int}
@param protocol: A L{DatagramProtocol} instance which will be
connected to the given C{port}.
@type protocol: L{DatagramProtocol}
@param interface: The local IPv4 or IPv6 address to which to bind;
defaults to '', ie all IPv4 addresses.
@type interface: C{str}
@param maxPacketSize: The maximum packet size to accept.
@type maxPacketSize: C{int}
@return: object which provides L{IListeningPort}.
Nr )rD rX rG rY r r r
� listenUDP� s zIReactorUDP.listenUDPN)rC rW )r r r
r rc r r r r
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UDP socket methods that support multicast.
IMPORTANT: This is an experimental new interface. It may change
without backwards compatibility. Suggestions are welcome.
rC rW Fc C s dS )a
Connects a given
L{DatagramProtocol<twisted.internet.protocol.DatagramProtocol>} to the
given numeric UDP port.
@param listenMultiple: If set to True, allows multiple sockets to
bind to the same address and port number at the same time.
@type listenMultiple: C{bool}
@returns: An object which provides L{IListeningPort}.
@see: L{twisted.internet.interfaces.IMulticastTransport}
@see: U{http://twistedmatrix.com/documents/current/core/howto/udp.html}
Nr )rD rX rG rY ZlistenMultipler r r
�listenMulticast� s z!IReactorMulticast.listenMulticastN)rC rW F)r r r
r re r r r r
rd � s �rd c @ s* e Zd ZdZdd� Zdd� Zd
dd�Zd S ) �IReactorSocketa
Methods which allow a reactor to use externally created sockets.
For example, to use C{adoptStreamPort} to implement behavior equivalent
to that of L{IReactorTCP.listenTCP}, you might write code like this::
from socket import SOMAXCONN, AF_INET, SOCK_STREAM, socket
portSocket = socket(AF_INET, SOCK_STREAM)
# Set FD_CLOEXEC on port, left as an exercise. Then make it into a
# non-blocking listening port:
portSocket.setblocking(False)
portSocket.bind(('192.168.1.2', 12345))
portSocket.listen(SOMAXCONN)
# Now have the reactor use it as a TCP port
port = reactor.adoptStreamPort(
portSocket.fileno(), AF_INET, YourFactory())
# portSocket itself is no longer necessary, and needs to be cleaned
# up by us.
portSocket.close()
# Whenever the server is no longer needed, stop it as usual.
stoppedDeferred = port.stopListening()
Another potential use is to inherit a listening descriptor from a parent
process (for example, systemd or launchd), or to receive one over a UNIX
domain socket.
Some plans for extending this interface exist. See:
- U{http://twistedmatrix.com/trac/ticket/6594}: AF_UNIX SOCK_DGRAM ports
c C s dS )a9
Add an existing listening I{SOCK_STREAM} socket to the reactor to
monitor for new connections to accept and handle.
@param fileDescriptor: A file descriptor associated with a socket which
is already bound to an address and marked as listening. The socket
must be set non-blocking. Any additional flags (for example,
close-on-exec) must also be set by application code. Application
code is responsible for closing the file descriptor, which may be
done as soon as C{adoptStreamPort} returns.
@type fileDescriptor: C{int}
@param addressFamily: The address family (or I{domain}) of the socket.
For example, L{socket.AF_INET6}.
@param factory: A L{ServerFactory} instance to use to create new
protocols to handle connections accepted via this socket.
@return: An object providing L{IListeningPort}.
@raise twisted.internet.error.UnsupportedAddressFamily: If the
given address family is not supported by this reactor, or
not supported with the given socket type.
@raise twisted.internet.error.UnsupportedSocketType: If the
given socket type is not supported by this reactor, or not
supported with the given socket type.
Nr ��fileDescriptor�
addressFamilyrE r r r
�adoptStreamPort s z IReactorSocket.adoptStreamPortc C s dS )a9
Add an existing connected I{SOCK_STREAM} socket to the reactor to
monitor for data.
Note that the given factory won't have its C{startFactory} and
C{stopFactory} methods called, as there is no sensible time to call
them in this situation.
@param fileDescriptor: A file descriptor associated with a socket which
is already connected. The socket must be set non-blocking. Any
additional flags (for example, close-on-exec) must also be set by
application code. Application code is responsible for closing the
file descriptor, which may be done as soon as
C{adoptStreamConnection} returns.
@type fileDescriptor: C{int}
@param addressFamily: The address family (or I{domain}) of the socket.
For example, L{socket.AF_INET6}.
@param factory: A L{ServerFactory} instance to use to create a new
protocol to handle the connection via this socket.
@raise UnsupportedAddressFamily: If the given address family is not
supported by this reactor, or not supported with the given socket
type.
@raise UnsupportedSocketType: If the given socket type is not supported
by this reactor, or not supported with the given socket type.
Nr rg r r r
�adoptStreamConnection+ s z$IReactorSocket.adoptStreamConnectionrW c C s dS )a|
Add an existing listening I{SOCK_DGRAM} socket to the reactor to
monitor for read and write readiness.
@param fileDescriptor: A file descriptor associated with a socket which
is already bound to an address and marked as listening. The socket
must be set non-blocking. Any additional flags (for example,
close-on-exec) must also be set by application code. Application
code is responsible for closing the file descriptor, which may be
done as soon as C{adoptDatagramPort} returns.
@type fileDescriptor: C{int}
@param addressFamily: The address family or I{domain} of the socket.
For example, L{socket.AF_INET6}.
@type addressFamily: C{int}
@param protocol: A L{DatagramProtocol} instance to connect to
a UDP transport.
@type protocol: L{DatagramProtocol}
@param maxPacketSize: The maximum packet size to accept.
@type maxPacketSize: C{int}
@return: An object providing L{IListeningPort}.
@raise UnsupportedAddressFamily: If the given address family is not
supported by this reactor, or not supported with the given socket
type.
@raise UnsupportedSocketType: If the given socket type is not supported
by this reactor, or not supported with the given socket type.
Nr )rh ri rX rY r r r
�adoptDatagramPortK s z IReactorSocket.adoptDatagramPortN)rW )r r r
r rj rk rl r r r r
rf � s
" ! �rf c @ s$ e Zd Zdi dddddfdd�ZdS )�IReactorProcessr Nr c C s dS )a�
Spawn a process, with a process protocol.
Arguments given to this function that are listed as L{bytes} or
L{unicode} may be encoded or decoded depending on the platform and the
argument type given. On UNIX systems (Linux, FreeBSD, macOS) and
Python 2 on Windows, L{unicode} arguments will be encoded down to
L{bytes} using the encoding given by L{os.getfilesystemencoding}, to be
used with the "narrow" OS APIs. On Python 3 on Windows, L{bytes}
arguments will be decoded up to L{unicode} using the encoding given by
L{os.getfilesystemencoding} (C{mbcs} before Python 3.6, C{utf8}
thereafter) and given to Windows's native "wide" APIs.
@type processProtocol: L{IProcessProtocol} provider
@param processProtocol: An object which will be notified of all events
related to the created process.
@param executable: the file name to spawn - the full path should be
used.
@type executable: L{bytes} or L{unicode}
@param args: the command line arguments to pass to the process; a
sequence of strings. The first string should be the executable's
name.
@type args: L{list} with L{bytes} or L{unicode} items.
@type env: a L{dict} mapping L{bytes}/L{unicode} keys to
L{bytes}/L{unicode} items, or L{None}.
@param env: the environment variables to pass to the child process.
The resulting behavior varies between platforms. If:
- C{env} is not set:
- On POSIX: pass an empty environment.
- On Windows: pass L{os.environ}.
- C{env} is L{None}:
- On POSIX: pass L{os.environ}.
- On Windows: pass L{os.environ}.
- C{env} is a L{dict}:
- On POSIX: pass the key/value pairs in C{env} as the
complete environment.
- On Windows: update L{os.environ} with the key/value
pairs in the L{dict} before passing it. As a
consequence of U{bug #1640
<http://twistedmatrix.com/trac/ticket/1640>}, passing
keys with empty values in an effort to unset
environment variables I{won't} unset them.
@param path: the path to run the subprocess in - defaults to the
current directory.
@type path: L{bytes} or L{unicode} or L{None}
@param uid: user ID to run the subprocess as. (Only available on POSIX
systems.)
@param gid: group ID to run the subprocess as. (Only available on
POSIX systems.)
@param usePTY: if true, run this process in a pseudo-terminal.
optionally a tuple of C{(masterfd, slavefd, ttyname)}, in which
case use those file descriptors. (Not available on all systems.)
@param childFDs: A dictionary mapping file descriptors in the new child
process to an integer or to the string 'r' or 'w'.
If the value is an integer, it specifies a file descriptor in the
parent process which will be mapped to a file descriptor (specified
by the key) in the child process. This is useful for things like
inetd and shell-like file redirection.
If it is the string 'r', a pipe will be created and attached to the
child at that file descriptor: the child will be able to write to
that file descriptor and the parent will receive read notification
via the L{IProcessProtocol.childDataReceived} callback. This is
useful for the child's stdout and stderr.
If it is the string 'w', similar setup to the previous case will
occur, with the pipe being readable by the child instead of
writeable. The parent process can write to that file descriptor
using L{IProcessTransport.writeToChild}. This is useful for the
child's stdin.
If childFDs is not passed, the default behaviour is to use a
mapping that opens the usual stdin/stdout/stderr pipes.
@type childFDs: L{dict} of L{int} to L{int} or L{str}
@see: L{twisted.internet.protocol.ProcessProtocol}
@return: An object which provides L{IProcessTransport}.
@raise OSError: Raised with errno C{EAGAIN} or C{ENOMEM} if there are
insufficient system resources to create a new process.
Nr ) ZprocessProtocol�
executable�args�env�pathZuid�gidZusePTYZchildFDsr r r
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rs r r r r
rm p s �rm c @ s( e Zd ZdZdd� Zdd� Zdd� ZdS ) � IReactorTimez7
Time methods that a Reactor should implement.
c C s dS )zg
Get the current time in seconds.
@return: A number-like object of some sort.
Nr r r r r
�seconds� s zIReactorTime.secondsc O s dS )a5
Call a function later.
@type delay: C{float}
@param delay: the number of seconds to wait.
@param callable: the callable object to call later.
@param args: the arguments to call it with.
@param kw: the keyword arguments to call it with.
@return: An object which provides L{IDelayedCall} and can be used to
cancel the scheduled call, by calling its C{cancel()} method.
It also may be rescheduled by calling its C{delay()} or
C{reset()} methods.
Nr )�delay�callablero �kwr r r
� callLater� s zIReactorTime.callLaterc C s dS )a
Retrieve all currently scheduled delayed calls.
@return: A list of L{IDelayedCall} providers representing all
currently scheduled calls. This is everything that has been
returned by C{callLater} but not yet called or cancelled.
Nr r r r r
�getDelayedCalls� s z IReactorTime.getDelayedCallsN)r r r
r ru ry rz r r r r
rt � s rt c @ s8 e Zd ZdZdd� Zdd� Zdd� Zdd � Zd
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A scheduled call.
There are probably other useful methods we can add to this interface;
suggestions are welcome.
c C s dS )zr
Get time when delayed call will happen.
@return: time in seconds since epoch (a float).
Nr r r r r
�getTime s zIDelayedCall.getTimec C s dS )z�
Cancel the scheduled call.
@raises twisted.internet.error.AlreadyCalled: if the call has already
happened.
@raises twisted.internet.error.AlreadyCancelled: if the call has already
been cancelled.
Nr r r r r
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Delay the scheduled call.
@param secondsLater: how many seconds from its current firing time to delay
@raises twisted.internet.error.AlreadyCalled: if the call has already
happened.
@raises twisted.internet.error.AlreadyCancelled: if the call has already
been cancelled.
Nr )Z secondsLaterr r r
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Reset the scheduled call's timer.
@param secondsFromNow: how many seconds from now it should fire,
equivalent to C{.cancel()} and then doing another
C{reactor.callLater(secondsLater, ...)}
@raises twisted.internet.error.AlreadyCalled: if the call has already
happened.
@raises twisted.internet.error.AlreadyCancelled: if the call has already
been cancelled.
Nr )ZsecondsFromNowr r r
�reset! s zIDelayedCall.resetc C s dS )zx
@return: True if this call is still active, False if it has been
called or cancelled.
Nr r r r r
�active/ s zIDelayedCall.activeN) r r r
r r| r rv r} r~ r r r r
r{ � s
r{ c @ s e Zd ZdZdd� ZdS )�IReactorFromThreadsz�
This interface is the set of thread-safe methods which may be invoked on
the reactor from other threads.
@since: 15.4
c O s dS )a�
Cause a function to be executed by the reactor thread.
Use this method when you want to run a function in the reactor's thread
from another thread. Calling L{callFromThread} should wake up the main
thread (where L{reactor.run() <IReactorCore.run>} is executing) and run
the given callable in that thread.
If you're writing a multi-threaded application the C{callable} may need
to be thread safe, but this method doesn't require it as such. If you
want to call a function in the next mainloop iteration, but you're in
the same thread, use L{callLater} with a delay of 0.
Nr �rw ro rx r r r
�callFromThread? s z"IReactorFromThreads.callFromThreadN)r r r
r r� r r r r
r 7 s r c @ s e Zd ZdZdd� ZdS )�IReactorInThreadsz�
This interface contains the methods exposed by a reactor which will let you
run functions in another thread.
@since: 15.4
c O s dS )z}
Run the given callable object in a separate thread, with the given
arguments and keyword arguments.
Nr )rw ro �kwargsr r r
� callInThreadW s z IReactorInThreads.callInThreadN)r r r
r r� r r r r
r� O s r� c @ s e Zd ZdZdd� Zdd� ZdS )�IReactorThreadsz}
Dispatch methods to be run in threads.
Internally, this should use a thread pool and dispatch methods to them.
c C s dS )z�
Return the threadpool used by L{IReactorInThreads.callInThread}.
Create it first if necessary.
@rtype: L{twisted.python.threadpool.ThreadPool}
Nr r r r r
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Suggest the size of the internal threadpool used to dispatch functions
passed to L{IReactorInThreads.callInThread}.
Nr )�sizer r r
�suggestThreadPoolSizeo s z%IReactorThreads.suggestThreadPoolSizeN)r r r
r r� r� r r r r
r� _ s r� c @ sd e Zd ZdZed�Zddd�Zdd� Zdd � Zd
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Core methods that a Reactor must implement.
zjA C{bool} which is C{True} from I{during startup} to I{during shutdown} and C{False} the rest of the time.r= c C s dS )z[
Return a L{twisted.internet.defer.Deferred} that will resolve a hostname.
Nr r r r r
�resolve� s zIReactorCore.resolvec C s dS )z�
Fire 'startup' System Events, move the reactor to the 'running'
state, then run the main loop until it is stopped with C{stop()} or
C{crash()}.
Nr r r r r
�run� s zIReactorCore.runc C s dS )z�
Fire 'shutdown' System Events, which will move the reactor to the
'stopped' state and cause C{reactor.run()} to exit.
Nr r r r r
�stop� s zIReactorCore.stopc C s dS )as
Stop the main loop *immediately*, without firing any system events.
This is named as it is because this is an extremely "rude" thing to do;
it is possible to lose data and put your system in an inconsistent
state by calling this. However, it is necessary, as sometimes a system
can become wedged in a pre-shutdown call.
Nr r r r r
�crash� s zIReactorCore.crashr c C s dS )ap
Run the main loop's I/O polling function for a period of time.
This is most useful in applications where the UI is being drawn "as
fast as possible", such as games. All pending L{IDelayedCall}s will
be called.
The reactor must have been started (via the C{run()} method) prior to
any invocations of this method. It must also be stopped manually
after the last call to this method (via the C{stop()} method). This
method is not re-entrant: you must not call it recursively; in
particular, you must not call it while the reactor is running.
Nr )rv r r r
�iterate� s zIReactorCore.iteratec C s dS )z�
Fire a system-wide event.
System-wide events are things like 'startup', 'shutdown', and
'persist'.
Nr )� eventTyper r r
�fireSystemEvent� s z IReactorCore.fireSystemEventc O s dS )a%
Add a function to be called when a system event occurs.
Each "system event" in Twisted, such as 'startup', 'shutdown', and
'persist', has 3 phases: 'before', 'during', and 'after' (in that
order, of course). These events will be fired internally by the
Reactor.
An implementor of this interface must only implement those events
described here.
Callbacks registered for the "before" phase may return either None or a
Deferred. The "during" phase will not execute until all of the
Deferreds from the "before" phase have fired.
Once the "during" phase is running, all of the remaining triggers must
execute; their return values must be ignored.
@param phase: a time to call the event -- either the string 'before',
'after', or 'during', describing when to call it
relative to the event's execution.
@param eventType: this is a string describing the type of event.
@param callable: the object to call before shutdown.
@param args: the arguments to call it with.
@param kw: the keyword arguments to call it with.
@return: an ID that can be used to remove this call with
removeSystemEventTrigger.
Nr )Zphaser� rw ro rx r r r
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Removes a trigger added with addSystemEventTrigger.
@param triggerID: a value returned from addSystemEventTrigger.
@raise KeyError: If there is no system event trigger for the given
C{triggerID}.
@raise ValueError: If there is no system event trigger for the given
C{triggerID}.
@raise TypeError: If there is no system event trigger for the given
C{triggerID}.
Nr )Z triggerIDr r r
�removeSystemEventTrigger� s z%IReactorCore.removeSystemEventTriggerc O s dS )a
Call a function when the reactor is running.
If the reactor has not started, the callable will be scheduled
to run when it does start. Otherwise, the callable will be invoked
immediately.
@param callable: the callable object to call later.
@param args: the arguments to call it with.
@param kw: the keyword arguments to call it with.
@return: None if the callable was invoked, otherwise a system
event id for the scheduled call.
Nr r� r r r
�callWhenRunning� s z IReactorCore.callWhenRunningN)r= )r )r r r
r r �runningr� r� r� r� r� r� r� r� r� r r r r
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#r� c @ s e Zd ZdZdd� ZdS )�IReactorPluggableResolvera
An L{IReactorPluggableResolver} is a reactor which can be customized with
an L{IResolverSimple}. This is a fairly limited interface, that supports
only IPv4; you should use L{IReactorPluggableNameResolver} instead.
@see: L{IReactorPluggableNameResolver}
c C s dS )a"
Set the internal resolver to use to for name lookups.
@type resolver: An object implementing the L{IResolverSimple} interface
@param resolver: The new resolver to use.
@return: The previously installed resolver.
@rtype: L{IResolverSimple}
Nr �Zresolverr r r
�installResolver s z)IReactorPluggableResolver.installResolverN)r r r
r r� r r r r
r� � s r� c @ s e Zd ZdZed�Zdd� ZdS )� IReactorPluggableNameResolverzx
An L{IReactorPluggableNameResolver} is a reactor whose name resolver can be
set to a user-supplied object.
zw
Read-only attribute; the resolver installed with L{installResolver}.
An L{IHostnameResolver}.
c C s dS )a!
Set the internal resolver to use for name lookups.
@type resolver: An object providing the L{IHostnameResolver} interface.
@param resolver: The new resolver to use.
@return: The previously installed resolver.
@rtype: L{IHostnameResolver}
Nr r� r r r
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r r Z nameResolverr� r r r r
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�r� c @ s e Zd ZdZdd� Zdd� ZdS )�IReactorDaemonizea�
A reactor which provides hooks that need to be called before and after
daemonization.
Notes:
- This interface SHOULD NOT be called by applications.
- This interface should only be implemented by reactors as a workaround
(in particular, it's implemented currently only by kqueue()).
For details please see the comments on ticket #1918.
c C s dS )z�
Hook to be called immediately before daemonization. No reactor methods
may be called until L{afterDaemonize} is called.
@return: L{None}.
Nr r r r r
�beforeDaemonize7 s z!IReactorDaemonize.beforeDaemonizec C s dS )z�
Hook to be called immediately after daemonization. This may only be
called after L{beforeDaemonize} had been called previously.
@return: L{None}.
Nr r r r r
�afterDaemonize@ s z IReactorDaemonize.afterDaemonizeN)r r r
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Implement me to be able to use L{IFileDescriptor} type resources.
This assumes that your main-loop uses UNIX-style numeric file descriptors
(or at least similarly opaque IDs returned from a .fileno() method)
c C s dS )a5
I add reader to the set of file descriptors to get read events for.
@param reader: An L{IReadDescriptor} provider that will be checked for
read events until it is removed from the reactor with
L{removeReader}.
@return: L{None}.
Nr ��readerr r r
� addReaderR s zIReactorFDSet.addReaderc C s dS )a8
I add writer to the set of file descriptors to get write events for.
@param writer: An L{IWriteDescriptor} provider that will be checked for
write events until it is removed from the reactor with
L{removeWriter}.
@return: L{None}.
Nr ��writerr r r
� addWriter] s zIReactorFDSet.addWriterc C s dS )zb
Removes an object previously added with L{addReader}.
@return: L{None}.
Nr r� r r r
� removeReaderh s zIReactorFDSet.removeReaderc C s dS )zb
Removes an object previously added with L{addWriter}.
@return: L{None}.
Nr r� r r r
� removeWritero s zIReactorFDSet.removeWriterc C s dS )z�
Remove all readers and writers.
Should not remove reactor internal reactor connections (like a waker).
@return: A list of L{IReadDescriptor} and L{IWriteDescriptor} providers
which were removed.
Nr r r r r
� removeAllv s zIReactorFDSet.removeAllc C s dS )z�
Return the list of file descriptors currently monitored for input
events by the reactor.
@return: the list of file descriptors monitored for input events.
@rtype: C{list} of C{IReadDescriptor}
Nr r r r r
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Return the list file descriptors currently monitored for output events
by the reactor.
@return: the list of file descriptors monitored for output events.
@rtype: C{list} of C{IWriteDescriptor}
Nr r r r r
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r� J s
r� c @ s( e Zd ZdZdd� Zdd� Zdd� ZdS ) �IListeningPortz
A listening port.
c C s dS )a
Start listening on this port.
@raise CannotListenError: If it cannot listen on this port (e.g., it is
a TCP port and it cannot bind to the required
port number).
Nr r r r r
�startListening� s z IListeningPort.startListeningc C s dS )z�
Stop listening on this port.
If it does not complete immediately, will return Deferred that fires
upon completion.
Nr r r r r
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stopListening� s z IListeningPort.stopListeningc C s dS )zj
Get the host that this port is listening for.
@return: An L{IAddress} provider.
Nr r r r r
�getHost� s zIListeningPort.getHostN)r r r
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r� � s r� c @ s e Zd ZdZdd� ZdS )�ILoggingContextz^
Give context information that will be used to log events generated by
this item.
c C s dS )zh
@return: Prefix used during log formatting to indicate context.
@rtype: C{str}
Nr r r r r
� logPrefix� s zILoggingContext.logPrefixN)r r r
r r� r r r r
r� � s r� c @ s e Zd ZdZdd� Zdd� ZdS )�IFileDescriptorzI
An interface representing a UNIX-style numeric file descriptor.
c C s dS )a�
@raise: If the descriptor no longer has a valid file descriptor
number associated with it.
@return: The platform-specified representation of a file descriptor
number. Or C{-1} if the descriptor no longer has a valid file
descriptor number associated with it. As long as the descriptor
is valid, calls to this method on a particular instance must
return the same value.
Nr r r r r
�fileno� s zIFileDescriptor.filenoc C s dS )a�
Called when the connection was lost.
This is called when the connection on a selectable object has been
lost. It will be called whether the connection was closed explicitly,
an exception occurred in an event handler, or the other end of the
connection closed it first.
See also L{IHalfCloseableDescriptor} if your descriptor wants to be
notified separately of the two halves of the connection being closed.
@param reason: A failure instance indicating the reason why the
connection was lost. L{error.ConnectionLost} and
L{error.ConnectionDone} are of special note, but the
failure may be of other classes as well.
Nr ��reasonr r r
�connectionLost� s z IFileDescriptor.connectionLostN)r r r
r r� r� r r r r
r� � s
r� c @ s e Zd ZdZdd� ZdS )�IReadDescriptorzz
An L{IFileDescriptor} that can read.
This interface is generally used in conjunction with L{IReactorFDSet}.
c C s dS )z�
Some data is available for reading on your descriptor.
@return: If an error is encountered which causes the descriptor to
no longer be valid, a L{Failure} should be returned. Otherwise,
L{None}.
Nr r r r r
�doRead� s zIReadDescriptor.doReadN)r r r
r r� r r r r
r� � s r� c @ s e Zd ZdZdd� ZdS )�IWriteDescriptorz{
An L{IFileDescriptor} that can write.
This interface is generally used in conjunction with L{IReactorFDSet}.
c C s dS )z�
Some data can be written to your descriptor.
@return: If an error is encountered which causes the descriptor to
no longer be valid, a L{Failure} should be returned. Otherwise,
L{None}.
Nr r r r r
�doWrite� s zIWriteDescriptor.doWriteN)r r r
r r� r r r r
r� � s r� c @ s e Zd ZdZdS )�IReadWriteDescriptorz=
An L{IFileDescriptor} that can both read and write.
Nr r r r r
r� s r� c @ s e Zd ZdZdd� Zdd� ZdS )�IHalfCloseableDescriptorz/
A descriptor that can be half-closed.
c C s dS )z6
Indicates write connection was lost.
Nr r� r r r
�writeConnectionLost s z,IHalfCloseableDescriptor.writeConnectionLostc C s dS )z5
Indicates read connection was lost.
Nr r� r r r
�readConnectionLost s z+IHalfCloseableDescriptor.readConnectionLostN)r r r
r r� r� r r r r
r�
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ISystemHandlez?
An object that wraps a networking OS-specific handle.
c C s dS )ab
Return a system- and reactor-specific handle.
This might be a socket.socket() object, or some other type of
object, depending on which reactor is being used. Use and
manipulate at your own risk.
This might be used in cases where you want to set specific
options not exposed by the Twisted APIs.
Nr r r r r
� getHandle" s zISystemHandle.getHandleN)r r r
r r� r r r r
r� s r� c @ s( e Zd ZdZdd� Zdd� Zdd� ZdS ) � IConsumerz3
A consumer consumes data from a producer.
c C s dS )a�
Register to receive data from a producer.
This sets self to be a consumer for a producer. When this object runs
out of data (as when a send(2) call on a socket succeeds in moving the
last data from a userspace buffer into a kernelspace buffer), it will
ask the producer to resumeProducing().
For L{IPullProducer} providers, C{resumeProducing} will be called once
each time data is required.
For L{IPushProducer} providers, C{pauseProducing} will be called
whenever the write buffer fills up and C{resumeProducing} will only be
called when it empties.
@type producer: L{IProducer} provider
@type streaming: C{bool}
@param streaming: C{True} if C{producer} provides L{IPushProducer},
C{False} if C{producer} provides L{IPullProducer}.
@raise RuntimeError: If a producer is already registered.
@return: L{None}
Nr )ZproducerZ streamingr r r
�registerProducer4 s zIConsumer.registerProducerc C s dS )zM
Stop consuming data from a producer, without disconnecting.
Nr r r r r
�unregisterProducerP s z IConsumer.unregisterProducerc C s dS )a@
The producer will write data by calling this method.
The implementation must be non-blocking and perform whatever
buffering is necessary. If the producer has provided enough data
for now and it is a L{IPushProducer}, the consumer may call its
C{pauseProducing} method.
Nr ��datar r r
�writeV s zIConsumer.writeN)r r r
r r� r� r� r r r r
r� / s r� c @ s e Zd ZdZdd� ZdS )� IProducerz�
A producer produces data for a consumer.
Typically producing is done by calling the write method of a class
implementing L{IConsumer}.
c C s dS )z�
Stop producing data.
This tells a producer that its consumer has died, so it must stop
producing data for good.
Nr r r r r
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stopProducingj s zIProducer.stopProducingN)r r r
r r� r r r r
r� b s r� c @ s e Zd ZdZdd� Zdd� ZdS )�
IPushProducera[
A push producer, also known as a streaming producer is expected to
produce (write to this consumer) data on a continuous basis, unless
it has been paused. A paused push producer will resume producing
after its resumeProducing() method is called. For a push producer
which is not pauseable, these functions may be noops.
c C s dS )z�
Pause producing data.
Tells a producer that it has produced too much data to process for
the time being, and to stop until resumeProducing() is called.
Nr r r r r
�pauseProducing| s z IPushProducer.pauseProducingc C s dS )z�
Resume producing data.
This tells a producer to re-add itself to the main loop and produce
more data for its consumer.
Nr r r r r
�resumeProducing� s z IPushProducer.resumeProducingN)r r r
r r� r� r r r r
r� s s r� c @ s e Zd ZdZdd� ZdS )�
IPullProducerz�
A pull producer, also known as a non-streaming producer, is
expected to produce data each time resumeProducing() is called.
c C s dS )a
Produce data for the consumer a single time.
This tells a producer to produce data for the consumer once
(not repeatedly, once only). Typically this will be done
by calling the consumer's write() method a single time with
produced data.
Nr r r r r
r� � s z IPullProducer.resumeProducingN)r r r
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r� � s r� c @ s, e Zd Zdd� Zdd� Zdd� Zdd� Zd S )
� IProtocolc C s dS )aO
Called whenever data is received.
Use this method to translate to a higher-level message. Usually, some
callback will be made upon the receipt of each complete protocol
message.
Please keep in mind that you will probably need to buffer some data
as partial (or multiple) protocol messages may be received! We
recommend that unit tests for protocols call through to this method
with differing chunk sizes, down to one byte at a time.
@param data: bytes of indeterminate length
@type data: L{bytes}
Nr r� r r r
� dataReceived� s zIProtocol.dataReceivedc C s dS )a�
Called when the connection is shut down.
Clear any circular references here, and any external references
to this Protocol. The connection has been closed. The C{reason}
Failure wraps a L{twisted.internet.error.ConnectionDone} or
L{twisted.internet.error.ConnectionLost} instance (or a subclass
of one of those).
@type reason: L{twisted.python.failure.Failure}
Nr r� r r r
r� � s zIProtocol.connectionLostc C s dS )z@
Make a connection to a transport and a server.
Nr )Z transportr r r
�makeConnection� s zIProtocol.makeConnectionc C s dS )a�
Called when a connection is made.
This may be considered the initializer of the protocol, because
it is called when the connection is completed. For clients,
this is called once the connection to the server has been
established; for servers, this is called after an accept() call
stops blocking and a socket has been received. If you need to
send any greeting or initial message, do it here.
Nr r r r r
�connectionMade� s zIProtocol.connectionMadeN)r r r
r� r� r� r� r r r r
r� � s
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�IProcessProtocolz7
Interface for process-related event handlers.
c C s dS )z�
Called when the process has been created.
@type process: L{IProcessTransport} provider
@param process: An object representing the process which has been
created and associated with this protocol.
Nr )Zprocessr r r
r� � s z IProcessProtocol.makeConnectionc C s dS )a
Called when data arrives from the child process.
@type childFD: L{int}
@param childFD: The file descriptor from which the data was
received.
@type data: L{bytes}
@param data: The data read from the child's file descriptor.
Nr ��childFDr� r r r
�childDataReceived� s z"IProcessProtocol.childDataReceivedc C s dS )z�
Called when a file descriptor associated with the child process is
closed.
@type childFD: C{int}
@param childFD: The file descriptor which was closed.
Nr )r� r r r
�childConnectionLost� s z$IProcessProtocol.childConnectionLostc C s dS )a�
Called when the child process exits.
@type reason: L{twisted.python.failure.Failure}
@param reason: A failure giving the reason the child process
terminated. The type of exception for this failure is either
L{twisted.internet.error.ProcessDone} or
L{twisted.internet.error.ProcessTerminated}.
@since: 8.2
Nr r� r r r
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processExited� s z IProcessProtocol.processExitedc C s dS )a�
Called when the child process exits and all file descriptors associated
with it have been closed.
@type reason: L{twisted.python.failure.Failure}
@param reason: A failure giving the reason the child process
terminated. The type of exception for this failure is either
L{twisted.internet.error.ProcessDone} or
L{twisted.internet.error.ProcessTerminated}.
Nr r� r r r
� processEnded s z IProcessProtocol.processEndedN) r r r
r r� r� r� r� r� r r r r
r� � s
r� c @ s e Zd ZdZdd� Zdd� ZdS )�IHalfCloseableProtocolaA
Implemented to indicate they want notification of half-closes.
TCP supports the notion of half-closing the connection, e.g.
closing the write side but still not stopping reading. A protocol
that implements this interface will be notified of such events,
instead of having connectionLost called.
c C s dS )a=
Notification of the read connection being closed.
This indicates peer did half-close of write side. It is now
the responsibility of the this protocol to call
loseConnection(). In addition, the protocol MUST make sure a
reference to it still exists (i.e. by doing a callLater with
one of its methods, etc.) as the reactor will only have a
reference to it if it is writing.
If the protocol does not do so, it might get garbage collected
without the connectionLost method ever being called.
Nr r r r r
r� s z)IHalfCloseableProtocol.readConnectionLostc C s dS )z�
Notification of the write connection being closed.
This will never be called for TCP connections as TCP does not
support notification of this type of half-close.
Nr r r r r
r� ( s z*IHalfCloseableProtocol.writeConnectionLostN)r r r
r r� r� r r r r
r� s r� c @ s e Zd ZdZdd� ZdS )�IHandshakeListeneraC
An interface implemented by a L{IProtocol} to indicate that it would like
to be notified when TLS handshakes complete when run over a TLS-based
transport.
This interface is only guaranteed to be called when run over a TLS-based
transport: non TLS-based transports will not respect this interface.
c C s dS )ax
Notification of the TLS handshake being completed.
This notification fires when OpenSSL has completed the TLS handshake.
At this point the TLS connection is established, and the protocol can
interrogate its transport (usually an L{ISSLTransport}) for details of
the TLS connection.
This notification *also* fires whenever the TLS session is
renegotiated. As a result, protocols that have certain minimum security
requirements should implement this interface to ensure that they are
able to re-evaluate the security of the TLS session if it changes.
Nr r r r r
�handshakeCompleted< s z%IHandshakeListener.handshakeCompletedN)r r r
r r� r r r r
r� 2 s r� c @ s e Zd ZdZdd� ZdS )�IFileDescriptorReceiverz�
Protocols may implement L{IFileDescriptorReceiver} to receive file
descriptors sent to them. This is useful in conjunction with
L{IUNIXTransport}, which allows file descriptors to be sent between
processes on a single host.
c C s dS )z�
Called when a file descriptor is received over the connection.
@param descriptor: The descriptor which was received.
@type descriptor: C{int}
@return: L{None}
Nr �Z
descriptorr r r
�fileDescriptorReceivedT s z.IFileDescriptorReceiver.fileDescriptorReceivedN)r r r
r r� r r r r
r� M s r� c @ s( e Zd ZdZdd� Zdd� Zdd� ZdS ) �IProtocolFactoryz+
Interface for protocol factories.
c C s dS )a�
Called when a connection has been established to addr.
If None is returned, the connection is assumed to have been refused,
and the Port will close the connection.
@type addr: (host, port)
@param addr: The address of the newly-established connection
@return: None if the connection was refused, otherwise an object
providing L{IProtocol}.
Nr ��addrr r r
�
buildProtocole s z IProtocolFactory.buildProtocolc C s dS )zM
Called every time this is connected to a Port or Connector.
Nr r r r r
�doStarts s zIProtocolFactory.doStartc C s dS )zQ
Called every time this is unconnected from a Port or Connector.
Nr r r r r
�doStopx s zIProtocolFactory.doStopN)r r r
r r� r� r� r r r r
r� ` s r� c @ s8 e Zd ZdZdd� Zdd� Zdd� Zdd � Zd
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�
ITransporta�
I am a transport for bytes.
I represent (and wrap) the physical connection and synchronicity
of the framework which is talking to the network. I make no
representations about whether calls to me will happen immediately
or require returning to a control loop, or whether they will happen
in the same or another thread. Consider methods of this class
(aside from getPeer) to be 'thrown over the wall', to happen at some
indeterminate time.
c C s dS )ae
Write some data to the physical connection, in sequence, in a
non-blocking fashion.
If possible, make sure that it is all written. No data will
ever be lost, although (obviously) the connection may be closed
before it all gets through.
@type data: L{bytes}
@param data: The data to write.
Nr r� r r r
r� � s zITransport.writec C s dS )aC
Write an iterable of byte strings to the physical connection.
If possible, make sure that all of the data is written to
the socket at once, without first copying it all into a
single byte string.
@type data: an iterable of L{bytes}
@param data: The data to write.
Nr r� r r r
�
writeSequence� s zITransport.writeSequencec C s dS )z�
Close my connection, after writing all pending data.
Note that if there is a registered producer on a transport it
will not be closed until the producer has been unregistered.
Nr r r r r
�loseConnection� s zITransport.loseConnectionc C s dS )ah
Get the remote address of this connection.
Treat this method with caution. It is the unfortunate result of the
CGI and Jabber standards, but should not be considered reliable for
the usual host of reasons; port forwarding, proxying, firewalls, IP
masquerading, etc.
@return: An L{IAddress} provider.
Nr r r r r
�getPeer� s zITransport.getPeerc C s dS )z�
Similar to getPeer, but returns an address describing this side of the
connection.
@return: An L{IAddress} provider.
Nr r r r r
r� � s zITransport.getHostN) r r r
r r� r� r� r� r� r r r r
r� ~ s
r� c @ sP e Zd ZdZdd� Zdd� Zdd� Zdd � Zd
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� Z dd� Z
dd� Z dS )�
ITCPTransportz
A TCP based transport.
c C s dS )aq
Half-close the write side of a TCP connection.
If the protocol instance this is attached to provides
IHalfCloseableProtocol, it will get notified when the operation is
done. When closing write connection, as with loseConnection this will
only happen when buffer has emptied and there is no registered
producer.
Nr r r r r
�loseWriteConnection� s z!ITCPTransport.loseWriteConnectionc C s dS )z�
Close the connection abruptly.
Discards any buffered data, stops any registered producer,
and, if possible, notifies the other end of the unclean
closure.
@since: 11.1
Nr r r r r
�abortConnection� s z ITCPTransport.abortConnectionc C s dS )z6
Return if C{TCP_NODELAY} is enabled.
Nr r r r r
�
getTcpNoDelay� s zITCPTransport.getTcpNoDelayc C s dS )z�
Enable/disable C{TCP_NODELAY}.
Enabling C{TCP_NODELAY} turns off Nagle's algorithm. Small packets are
sent sooner, possibly at the expense of overall throughput.
Nr ��enabledr r r
�
setTcpNoDelay� s zITCPTransport.setTcpNoDelayc C s dS )z7
Return if C{SO_KEEPALIVE} is enabled.
Nr r r r r
�getTcpKeepAlive� s z ITCPTransport.getTcpKeepAlivec C s dS )a
Enable/disable C{SO_KEEPALIVE}.
Enabling C{SO_KEEPALIVE} sends packets periodically when the connection
is otherwise idle, usually once every two hours. They are intended
to allow detection of lost peers in a non-infinite amount of time.
Nr r� r r r
�setTcpKeepAlive� s z ITCPTransport.setTcpKeepAlivec C s dS �z;
Returns L{IPv4Address} or L{IPv6Address}.
Nr r r r r
r� � s zITCPTransport.getHostc C s dS r� r r r r r
r� � s zITCPTransport.getPeerN) r r r
r r� r� r� r� r� r� r� r� r r r r
r� � s r� c @ s e Zd ZdZdd� ZdS )�IUNIXTransportz@
Transport for stream-oriented unix domain connections.
c C s dS )a�
Send a duplicate of this (file, socket, pipe, etc) descriptor to the
other end of this connection.
The send is non-blocking and will be queued if it cannot be performed
immediately. The send will be processed in order with respect to other
C{sendFileDescriptor} calls on this transport, but not necessarily with
respect to C{write} calls on this transport. The send can only be
processed if there are also bytes in the normal connection-oriented send
buffer (ie, you must call C{write} at least as many times as you call
C{sendFileDescriptor}).
@param descriptor: An C{int} giving a valid file descriptor in this
process. Note that a I{file descriptor} may actually refer to a
socket, a pipe, or anything else POSIX tries to treat in the same
way as a file.
@return: L{None}
Nr r� r r r
�sendFileDescriptor s z!IUNIXTransport.sendFileDescriptorN)r r r
r r� r r r r
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A provider of L{IOpenSSLServerConnectionCreator} can create
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@see: L{twisted.internet.ssl}
@note: Creating OpenSSL connection objects is subtle, error-prone, and
security-critical. Before implementing this interface yourself,
consider using L{twisted.internet.ssl.CertificateOptions} as your
C{contextFactory}. (For historical reasons, that class does not
actually I{implement} this interface; nevertheless it is usable in all
Twisted APIs which require a provider of this interface.)
c C s dS )aq
Create a connection for the given server protocol.
@param tlsProtocol: the protocol server making the request.
@type tlsProtocol: L{twisted.protocols.tls.TLSMemoryBIOProtocol}.
@return: an OpenSSL connection object configured appropriately for the
given Twisted protocol.
@rtype: L{OpenSSL.SSL.Connection}
Nr �Z tlsProtocolr r r
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@see: L{twisted.internet.ssl}
@note: Creating OpenSSL connection objects is subtle, error-prone, and
security-critical. Before implementing this interface yourself,
consider using L{twisted.internet.ssl.optionsForClientTLS} as your
C{contextFactory}.
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Create a connection for the given client protocol.
@param tlsProtocol: the client protocol making the request.
@type tlsProtocol: L{twisted.protocols.tls.TLSMemoryBIOProtocol}.
@return: an OpenSSL connection object configured appropriately for the
given Twisted protocol.
@rtype: L{OpenSSL.SSL.Connection}
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A provider of L{IProtocolNegotiationFactory} can provide information about
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@see: L{twisted.internet.ssl}
c C s dS )a
Returns a list of protocols that can be spoken by the connection
factory in the form of ALPN tokens, as laid out in the IANA registry
for ALPN tokens.
@return: a list of ALPN tokens in order of preference.
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contexts as needed for individual connections.
@see: L{twisted.internet.ssl}
c C s dS )a!
Returns a TLS context object, suitable for securing a TLS connection.
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Nr r r r r
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A TCP transport that supports switching to TLS midstream.
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Initiate TLS negotiation.
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TLS connections.
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servers, use L{twisted.internet.ssl.CertificateOptions}.
@type contextFactory: L{IOpenSSLClientConnectionCreator} or
L{IOpenSSLServerConnectionCreator}, depending on whether this
L{ITLSTransport} is a server or not. If the appropriate interface
is not provided by the value given for C{contextFactory}, it must
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A TLS based transport that supports using ALPN/NPN to negotiate the
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peer does not support ALPN or NPN, or neither NPN or ALPN are available
on this machine, will be L{None}. Otherwise, will be the name of the
selected protocol as C{bytes}. Note that until the handshake has
completed this property may incorrectly return L{None}: wait until data
has been received before trusting it (see
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Join a multicast group. Returns L{Deferred} of success or failure.
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A stream client endpoint is a place that L{ClientFactory} can connect to.
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Connect the C{protocolFactory} to the location specified by this
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connection otherwise a L{Failure} wrapping L{ConnectError} or
L{NoProtocol <twisted.internet.error.NoProtocol>}.
Nr �ZprotocolFactoryr r r
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L{CannotListenError}
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An L{IStreamServerEndpointStringParser} is like an
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A C{str}, the description prefix to respond to. For example, an
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c O s dS )a
Parse a stream server endpoint from a reactor and string-only arguments
and keyword arguments.
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@return: a stream server endpoint
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Nr �Zreactorro r� r r r
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This interface is really only useful in the context of the plugin system
for L{endpoints.clientFromString}. See the document entitled "I{The
Twisted Plugin System}" for more details on how to write a plugin.
If you place an L{IStreamClientEndpointStringParserWithReactor} plugin in
the C{twisted.plugins} package, that plugin's C{parseStreamClient} method
will be used to produce endpoints for any description string that begins
with the result of that L{IStreamClientEndpointStringParserWithReactor}'s
prefix attribute.
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L{bytes}, the description prefix to respond to. For example, an
L{IStreamClientEndpointStringParserWithReactor} plugin which had
C{b"foo"} for its C{prefix} attribute would be called for endpoint
descriptions like C{b"foo:bar:baz"} or C{b"foo:"}.
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This method is invoked by L{endpoints.clientFromString}, if the type of
endpoint matches the return value from this
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@param args: The byte string arguments, minus the endpoint type, in the
endpoint description string, parsed according to the rules
described in L{endpoints.quoteStringArgument}. For example, if the
description were C{b"my-type:foo:bar:baz=qux"}, C{args} would be
C{(b'foo', b'bar')}
@param kwargs: The byte string arguments from the endpoint description
passed as keyword arguments. For example, if the description were
C{b"my-type:foo:bar:baz=qux"}, C{kwargs} would be
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it has installed a handler. The caught signal number is made available in
the _exitSignal attribute.
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