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13,000
def Pop ( self ) : if self . tagList : tag = self . tagList [ 0 ] del self . tagList [ 0 ] else : tag = None return tag
Remove the tag from the front of the list and return it .
13,001
def get_context ( self , context ) : i = 0 while i < len ( self . tagList ) : tag = self . tagList [ i ] if tag . tagClass == Tag . applicationTagClass : pass elif tag . tagClass == Tag . contextTagClass : if tag . tagNumber == context : return tag elif tag . tagClass == Tag . openingTagClass : keeper = tag . tagNumber...
Return a tag or a list of tags context encoded .
13,002
def decode ( self , pdu ) : while pdu . pduData : self . tagList . append ( Tag ( pdu ) )
decode the tags from a PDU .
13,003
def coerce ( cls , arg ) : try : return cls ( arg ) . value except ( ValueError , TypeError ) : raise InvalidParameterDatatype ( "%s coerce error" % ( cls . __name__ , ) )
Given an arg return the appropriate value given the class .
13,004
def keylist ( self ) : items = self . enumerations . items ( ) items . sort ( lambda a , b : self . cmp ( a [ 1 ] , b [ 1 ] ) ) rslt = [ None ] * ( items [ - 1 ] [ 1 ] + 1 ) for key , value in items : rslt [ value ] = key return rslt
Return a list of names in order by value .
13,005
def CalcDayOfWeek ( self ) : year , month , day , day_of_week = self . value day_of_week = 255 if year == 255 : pass elif month in _special_mon_inv : pass elif day in _special_day_inv : pass else : try : today = time . mktime ( ( year + 1900 , month , day , 0 , 0 , 0 , 0 , 0 , - 1 ) ) day_of_week = time . gmtime ( toda...
Calculate the correct day of the week .
13,006
def now ( self , when = None ) : if when is None : when = _TaskManager ( ) . get_time ( ) tup = time . localtime ( when ) self . value = ( tup [ 0 ] - 1900 , tup [ 1 ] , tup [ 2 ] , tup [ 6 ] + 1 ) return self
Set the current value to the correct tuple based on the seconds since the epoch . If when is not provided get the current time from the task manager .
13,007
def has_device_info ( self , key ) : if _debug : DeviceInfoCache . _debug ( "has_device_info %r" , key ) return key in self . cache
Return true iff cache has information about the device .
13,008
def iam_device_info ( self , apdu ) : if _debug : DeviceInfoCache . _debug ( "iam_device_info %r" , apdu ) if not isinstance ( apdu , IAmRequest ) : raise ValueError ( "not an IAmRequest: %r" % ( apdu , ) ) device_instance = apdu . iAmDeviceIdentifier [ 1 ] device_info = self . cache . get ( device_instance , None ) if...
Create a device information record based on the contents of an IAmRequest and put it in the cache .
13,009
def update_device_info ( self , device_info ) : if _debug : DeviceInfoCache . _debug ( "update_device_info %r" , device_info ) if not hasattr ( device_info , '_ref_count' ) : device_info . _ref_count = 0 cache_id , cache_address = getattr ( device_info , '_cache_keys' , ( None , None ) ) if ( cache_id is not None ) and...
The application has updated one or more fields in the device information record and the cache needs to be updated to reflect the changes . If this is a cached version of a persistent record then this is the opportunity to update the database .
13,010
def acquire ( self , key ) : if _debug : DeviceInfoCache . _debug ( "acquire %r" , key ) if isinstance ( key , int ) : device_info = self . cache . get ( key , None ) elif not isinstance ( key , Address ) : raise TypeError ( "key must be integer or an address" ) elif key . addrType not in ( Address . localStationAddr ,...
Return the known information about the device and mark the record as being used by a segmenation state machine .
13,011
def release ( self , device_info ) : if _debug : DeviceInfoCache . _debug ( "release %r" , device_info ) if device_info . _ref_count == 0 : raise RuntimeError ( "reference count" ) device_info . _ref_count -= 1
This function is called by the segmentation state machine when it has finished with the device information .
13,012
def get_services_supported ( self ) : if _debug : Application . _debug ( "get_services_supported" ) services_supported = ServicesSupported ( ) for service_choice , service_request_class in confirmed_request_types . items ( ) : service_helper = "do_" + service_request_class . __name__ if hasattr ( self , service_helper ...
Return a ServicesSupported bit string based in introspection look for helper methods that match confirmed and unconfirmed services .
13,013
def get_next_task ( self ) : if _debug : TaskManager . _debug ( "get_next_task" ) now = _time ( ) task = None delta = None if self . tasks : when , n , nxttask = self . tasks [ 0 ] if when <= now : heappop ( self . tasks ) task = nxttask task . isScheduled = False if self . tasks : when , n , nxttask = self . tasks [ 0...
get the next task if there s one that should be processed and return how long it will be until the next one should be processed .
13,014
def match_date ( date , date_pattern ) : year , month , day , day_of_week = date year_p , month_p , day_p , day_of_week_p = date_pattern if year_p == 255 : pass elif year != year_p : return False if month_p == 255 : pass elif month_p == 13 : if ( month % 2 ) == 0 : return False elif month_p == 14 : if ( month % 2 ) == ...
Match a specific date a four - tuple with no special values with a date pattern four - tuple possibly having special values .
13,015
def datetime_to_time ( date , time ) : if ( 255 in date ) or ( 255 in time ) : raise RuntimeError ( "specific date and time required" ) time_tuple = ( date [ 0 ] + 1900 , date [ 1 ] , date [ 2 ] , time [ 0 ] , time [ 1 ] , time [ 2 ] , 0 , 0 , - 1 , ) return _mktime ( time_tuple )
Take the date and time 4 - tuples and return the time in seconds since the epoch as a floating point number .
13,016
def _check_reliability ( self , old_value = None , new_value = None ) : if _debug : LocalScheduleObject . _debug ( "_check_reliability %r %r" , old_value , new_value ) try : schedule_default = self . scheduleDefault if schedule_default is None : raise ValueError ( "scheduleDefault expected" ) if not isinstance ( schedu...
This function is called when the object is created and after one of its configuration properties has changed . The new and old value parameters are ignored this is called after the property has been changed and this is only concerned with the current value .
13,017
def present_value_changed ( self , old_value , new_value ) : if _debug : LocalScheduleInterpreter . _debug ( "present_value_changed %s %s" , old_value , new_value ) if not self . sched_obj . _app : if _debug : LocalScheduleInterpreter . _debug ( " - no application" ) return obj_prop_refs = self . sched_obj . listOfO...
This function is called when the presentValue of the local schedule object has changed both internally by this interpreter or externally by some client using WriteProperty .
13,018
def do_gc ( self , args ) : instance_type = getattr ( types , 'InstanceType' , object ) type2count = { } type2all = { } for o in gc . get_objects ( ) : if type ( o ) == instance_type : type2count [ o . __class__ ] = type2count . get ( o . __class__ , 0 ) + 1 type2all [ o . __class__ ] = type2all . get ( o . __class__ ,...
gc - print out garbage collection information
13,019
def do_buggers ( self , args ) : args = args . split ( ) if _debug : ConsoleCmd . _debug ( "do_buggers %r" , args ) if not self . handlers : self . stdout . write ( "no handlers\n" ) else : self . stdout . write ( "handlers: " ) self . stdout . write ( ', ' . join ( loggerName or '__root__' for loggerName in self . han...
buggers - list the console logging handlers
13,020
def do_EOF ( self , args ) : if _debug : ConsoleCmd . _debug ( "do_EOF %r" , args ) return self . do_exit ( args )
Exit on system end of file character
13,021
def do_shell ( self , args ) : if _debug : ConsoleCmd . _debug ( "do_shell %r" , args ) os . system ( args )
Pass command to a system shell when line begins with !
13,022
def confirmation ( self , pdu ) : if _debug : NetworkAdapter . _debug ( "confirmation %r (net=%r)" , pdu , self . adapterNet ) npdu = NPDU ( user_data = pdu . pduUserData ) npdu . decode ( pdu ) self . adapterSAP . process_npdu ( self , npdu )
Decode upstream PDUs and pass them up to the service access point .
13,023
def process_npdu ( self , npdu ) : if _debug : NetworkAdapter . _debug ( "process_npdu %r (net=%r)" , npdu , self . adapterNet ) pdu = PDU ( user_data = npdu . pduUserData ) npdu . encode ( pdu ) self . request ( pdu )
Encode NPDUs from the service access point and send them downstream .
13,024
def bind ( self , server , net = None , address = None ) : if _debug : NetworkServiceAccessPoint . _debug ( "bind %r net=%r address=%r" , server , net , address ) if net in self . adapters : raise RuntimeError ( "already bound" ) adapter = NetworkAdapter ( self , net ) self . adapters [ net ] = adapter if _debug : Netw...
Create a network adapter object and bind .
13,025
def unpack_ip_addr ( addr ) : if isinstance ( addr , bytearray ) : addr = bytes ( addr ) return ( socket . inet_ntoa ( addr [ 0 : 4 ] ) , struct . unpack ( '!H' , addr [ 4 : 6 ] ) [ 0 ] )
Given a six - octet BACnet address return an IP address tuple .
13,026
def ModuleLogger ( globs ) : if not globs . has_key ( '_debug' ) : raise RuntimeError ( "define _debug before creating a module logger" ) logger_name = globs [ '__name__' ] logger = logging . getLogger ( logger_name ) logger . globs = globs if '.' not in logger_name : hdlr = logging . StreamHandler ( ) hdlr . setLevel ...
Create a module level logger .
13,027
def bacpypes_debugging ( obj ) : logger = logging . getLogger ( obj . __module__ + '.' + obj . __name__ ) obj . _logger = logger obj . _debug = logger . debug obj . _info = logger . info obj . _warning = logger . warning obj . _error = logger . error obj . _exception = logger . exception obj . _fatal = logger . fatal r...
Function for attaching a debugging logger to a class or function .
13,028
def add_node ( self , node ) : if _debug : Network . _debug ( "add_node %r" , node ) self . nodes . append ( node ) node . lan = self if not node . name : node . name = '%s:%s' % ( self . name , node . address )
Add a node to this network let the node know which network it s on .
13,029
def remove_node ( self , node ) : if _debug : Network . _debug ( "remove_node %r" , node ) self . nodes . remove ( node ) node . lan = None
Remove a node from this network .
13,030
def process_pdu ( self , pdu ) : if _debug : Network . _debug ( "process_pdu(%s) %r" , self . name , pdu ) if self . traffic_log : self . traffic_log ( self . name , pdu ) if self . drop_percent != 0.0 : if ( random . random ( ) * 100.0 ) < self . drop_percent : if _debug : Network . _debug ( " - packet dropped" ) r...
Process a PDU by sending a copy to each node as dictated by the addressing and if a node is promiscuous .
13,031
def bind ( self , lan ) : if _debug : Node . _debug ( "bind %r" , lan ) lan . add_node ( self )
bind to a LAN .
13,032
def Match ( addr1 , addr2 ) : if _debug : Match . _debug ( "Match %r %r" , addr1 , addr2 ) if ( addr2 . addrType == Address . localBroadcastAddr ) : return ( addr1 . addrType == Address . localStationAddr ) or ( addr1 . addrType == Address . localBroadcastAddr ) elif ( addr2 . addrType == Address . localStationAddr ) :...
Return true iff addr1 matches addr2 .
13,033
def do_WhoIsRequest ( self , apdu ) : if _debug : WhoIsIAmServices . _debug ( "do_WhoIsRequest %r" , apdu ) if not self . localDevice : if _debug : WhoIsIAmServices . _debug ( " - no local device" ) return low_limit = apdu . deviceInstanceRangeLowLimit high_limit = apdu . deviceInstanceRangeHighLimit if ( low_limit ...
Respond to a Who - Is request .
13,034
def do_IAmRequest ( self , apdu ) : if _debug : WhoIsIAmServices . _debug ( "do_IAmRequest %r" , apdu ) if apdu . iAmDeviceIdentifier is None : raise MissingRequiredParameter ( "iAmDeviceIdentifier required" ) if apdu . maxAPDULengthAccepted is None : raise MissingRequiredParameter ( "maxAPDULengthAccepted required" ) ...
Respond to an I - Am request .
13,035
def do_WhoHasRequest ( self , apdu ) : if _debug : WhoHasIHaveServices . _debug ( "do_WhoHasRequest, %r" , apdu ) if not self . localDevice : if _debug : WhoIsIAmServices . _debug ( " - no local device" ) return if apdu . limits is not None : low_limit = apdu . limits . deviceInstanceRangeLowLimit high_limit = apdu ...
Respond to a Who - Has request .
13,036
def do_IHaveRequest ( self , apdu ) : if _debug : WhoHasIHaveServices . _debug ( "do_IHaveRequest %r" , apdu ) if apdu . deviceIdentifier is None : raise MissingRequiredParameter ( "deviceIdentifier required" ) if apdu . objectIdentifier is None : raise MissingRequiredParameter ( "objectIdentifier required" ) if apdu ....
Respond to a I - Have request .
13,037
def set_state ( self , newState , timer = 0 ) : if _debug : SSM . _debug ( "set_state %r (%s) timer=%r" , newState , SSM . transactionLabels [ newState ] , timer ) if ( self . state == COMPLETED ) or ( self . state == ABORTED ) : e = RuntimeError ( "invalid state transition from %s to %s" % ( SSM . transactionLabels [ ...
This function is called when the derived class wants to change state .
13,038
def set_segmentation_context ( self , apdu ) : if _debug : SSM . _debug ( "set_segmentation_context %s" , repr ( apdu ) ) self . segmentAPDU = apdu
This function is called to set the segmentation context .
13,039
def get_segment ( self , indx ) : if _debug : SSM . _debug ( "get_segment %r" , indx ) if not self . segmentAPDU : raise RuntimeError ( "no segmentation context established" ) if indx >= self . segmentCount : raise RuntimeError ( "invalid segment number %r, APDU has %r segments" % ( indx , self . segmentCount ) ) if se...
This function returns an APDU coorisponding to a particular segment of a confirmed request or complex ack . The segmentAPDU is the context .
13,040
def append_segment ( self , apdu ) : if _debug : SSM . _debug ( "append_segment %r" , apdu ) if not self . segmentAPDU : raise RuntimeError ( "no segmentation context established" ) self . segmentAPDU . put_data ( apdu . pduData )
This function appends the apdu content to the end of the current APDU being built . The segmentAPDU is the context .
13,041
def fill_window ( self , seqNum ) : if _debug : SSM . _debug ( "fill_window %r" , seqNum ) if _debug : SSM . _debug ( " - actualWindowSize: %r" , self . actualWindowSize ) for ix in range ( self . actualWindowSize ) : apdu = self . get_segment ( seqNum + ix ) self . ssmSAP . request ( apdu ) if not apdu . apduMor : ...
This function sends all of the packets necessary to fill out the segmentation window .
13,042
def request ( self , apdu ) : if _debug : ClientSSM . _debug ( "request %r" , apdu ) apdu . pduSource = None apdu . pduDestination = self . pdu_address self . ssmSAP . request ( apdu )
This function is called by client transaction functions when it wants to send a message to the device .
13,043
def indication ( self , apdu ) : if _debug : ClientSSM . _debug ( "indication %r" , apdu ) if ( apdu . apduType != ConfirmedRequestPDU . pduType ) : raise RuntimeError ( "invalid APDU (1)" ) self . set_segmentation_context ( apdu ) if ( not self . device_info ) or ( self . device_info . maxApduLengthAccepted is None ) ...
This function is called after the device has bound a new transaction and wants to start the process rolling .
13,044
def response ( self , apdu ) : if _debug : ClientSSM . _debug ( "response %r" , apdu ) apdu . pduSource = self . pdu_address apdu . pduDestination = None self . ssmSAP . sap_response ( apdu )
This function is called by client transaction functions when they want to send a message to the application .
13,045
def confirmation ( self , apdu ) : if _debug : ClientSSM . _debug ( "confirmation %r" , apdu ) if self . state == SEGMENTED_REQUEST : self . segmented_request ( apdu ) elif self . state == AWAIT_CONFIRMATION : self . await_confirmation ( apdu ) elif self . state == SEGMENTED_CONFIRMATION : self . segmented_confirmation...
This function is called by the device for all upstream messages related to the transaction .
13,046
def process_task ( self ) : if _debug : ClientSSM . _debug ( "process_task" ) if self . state == SEGMENTED_REQUEST : self . segmented_request_timeout ( ) elif self . state == AWAIT_CONFIRMATION : self . await_confirmation_timeout ( ) elif self . state == SEGMENTED_CONFIRMATION : self . segmented_confirmation_timeout ( ...
This function is called when something has taken too long .
13,047
def abort ( self , reason ) : if _debug : ClientSSM . _debug ( "abort %r" , reason ) self . set_state ( ABORTED ) abort_pdu = AbortPDU ( False , self . invokeID , reason ) return abort_pdu
This function is called when the transaction should be aborted .
13,048
def segmented_request ( self , apdu ) : if _debug : ClientSSM . _debug ( "segmented_request %r" , apdu ) if apdu . apduType == SegmentAckPDU . pduType : if _debug : ClientSSM . _debug ( " - segment ack" ) self . actualWindowSize = apdu . apduWin if not self . in_window ( apdu . apduSeq , self . initialSequenceNumber...
This function is called when the client is sending a segmented request and receives an apdu .
13,049
def set_state ( self , newState , timer = 0 ) : if _debug : ServerSSM . _debug ( "set_state %r (%s) timer=%r" , newState , SSM . transactionLabels [ newState ] , timer ) SSM . set_state ( self , newState , timer ) if ( newState == COMPLETED ) or ( newState == ABORTED ) : if _debug : ServerSSM . _debug ( " - remove f...
This function is called when the client wants to change state .
13,050
def request ( self , apdu ) : if _debug : ServerSSM . _debug ( "request %r" , apdu ) apdu . pduSource = self . pdu_address apdu . pduDestination = None self . ssmSAP . sap_request ( apdu )
This function is called by transaction functions to send to the application .
13,051
def indication ( self , apdu ) : if _debug : ServerSSM . _debug ( "indication %r" , apdu ) if self . state == IDLE : self . idle ( apdu ) elif self . state == SEGMENTED_REQUEST : self . segmented_request ( apdu ) elif self . state == AWAIT_RESPONSE : self . await_response ( apdu ) elif self . state == SEGMENTED_RESPONS...
This function is called for each downstream packet related to the transaction .
13,052
def confirmation ( self , apdu ) : if _debug : ServerSSM . _debug ( "confirmation %r" , apdu ) if self . state != AWAIT_RESPONSE : if _debug : ServerSSM . _debug ( " - warning: not expecting a response" ) if ( apdu . apduType == AbortPDU . pduType ) : if _debug : ServerSSM . _debug ( " - abort" ) self . set_state...
This function is called when the application has provided a response and needs it to be sent to the client .
13,053
def process_task ( self ) : if _debug : ServerSSM . _debug ( "process_task" ) if self . state == SEGMENTED_REQUEST : self . segmented_request_timeout ( ) elif self . state == AWAIT_RESPONSE : self . await_response_timeout ( ) elif self . state == SEGMENTED_RESPONSE : self . segmented_response_timeout ( ) elif self . st...
This function is called when the client has failed to send all of the segments of a segmented request the application has taken too long to complete the request or the client failed to ack the segments of a segmented response .
13,054
def abort ( self , reason ) : if _debug : ServerSSM . _debug ( "abort %r" , reason ) self . set_state ( ABORTED ) return AbortPDU ( True , self . invokeID , reason )
This function is called when the application would like to abort the transaction . There is no notification back to the application .
13,055
def await_response_timeout ( self ) : if _debug : ServerSSM . _debug ( "await_response_timeout" ) abort = self . abort ( AbortReason . serverTimeout ) self . request ( abort )
This function is called when the application has taken too long to respond to a clients request . The client has probably long since given up .
13,056
def get_next_invoke_id ( self , addr ) : if _debug : StateMachineAccessPoint . _debug ( "get_next_invoke_id" ) initialID = self . nextInvokeID while 1 : invokeID = self . nextInvokeID self . nextInvokeID = ( self . nextInvokeID + 1 ) % 256 if initialID == self . nextInvokeID : raise RuntimeError ( "no available invoke ...
Called by clients to get an unused invoke ID .
13,057
def sap_indication ( self , apdu ) : if _debug : StateMachineAccessPoint . _debug ( "sap_indication %r" , apdu ) if self . dccEnableDisable == 'enable' : if _debug : StateMachineAccessPoint . _debug ( " - communications enabled" ) elif self . dccEnableDisable == 'disable' : if _debug : StateMachineAccessPoint . _deb...
This function is called when the application is requesting a new transaction as a client .
13,058
def sap_confirmation ( self , apdu ) : if _debug : StateMachineAccessPoint . _debug ( "sap_confirmation %r" , apdu ) if isinstance ( apdu , SimpleAckPDU ) or isinstance ( apdu , ComplexAckPDU ) or isinstance ( apdu , ErrorPDU ) or isinstance ( apdu , RejectPDU ) or isinstance ( apdu , AbortPDU ) : for tr in self . serv...
This function is called when the application is responding to a request the apdu may be a simple ack complex ack error reject or abort .
13,059
def add_peer ( self , peerAddr , networks = None ) : if _debug : BTR . _debug ( "add_peer %r networks=%r" , peerAddr , networks ) if peerAddr in self . peers : if not networks : networks = [ ] else : self . peers [ peerAddr ] . extend ( networks ) else : if not networks : networks = [ ] self . peers [ peerAddr ] = netw...
Add a peer and optionally provide a list of the reachable networks .
13,060
def delete_peer ( self , peerAddr ) : if _debug : BTR . _debug ( "delete_peer %r" , peerAddr ) del self . peers [ peerAddr ]
Delete a peer .
13,061
def register ( self , addr , ttl ) : if ttl <= 0 : raise ValueError ( "time-to-live must be greater than zero" ) if isinstance ( addr , Address ) : self . bbmdAddress = addr else : self . bbmdAddress = Address ( addr ) self . bbmdTimeToLive = ttl self . install_task ( when = 0 )
Initiate the process of registering with a BBMD .
13,062
def unregister ( self ) : pdu = RegisterForeignDevice ( 0 ) pdu . pduDestination = self . bbmdAddress self . request ( pdu ) self . registrationStatus = - 2 self . bbmdAddress = None self . bbmdTimeToLive = None
Drop the registration with a BBMD .
13,063
def process_task ( self ) : pdu = RegisterForeignDevice ( self . bbmdTimeToLive ) pdu . pduDestination = self . bbmdAddress self . request ( pdu )
Called when the registration request should be sent to the BBMD .
13,064
def register_foreign_device ( self , addr , ttl ) : if _debug : BIPBBMD . _debug ( "register_foreign_device %r %r" , addr , ttl ) if isinstance ( addr , Address ) : pass elif isinstance ( addr , str ) : addr = Address ( addr ) else : raise TypeError ( "addr must be a string or an Address" ) for fdte in self . bbmdFDT :...
Add a foreign device to the FDT .
13,065
def encode_max_segments_accepted ( arg ) : if not arg : return 0 if arg > 64 : return 7 for i in range ( 6 , 0 , - 1 ) : if _max_segments_accepted_encoding [ i ] <= arg : return i raise ValueError ( "invalid max max segments accepted: %r" % ( arg , ) )
Encode the maximum number of segments the device will accept Section 20 . 1 . 2 . 4 and if the device says it can only accept one segment it shouldn t say that it supports segmentation!
13,066
def encode_max_apdu_length_accepted ( arg ) : for i in range ( 5 , - 1 , - 1 ) : if ( arg >= _max_apdu_length_encoding [ i ] ) : return i raise ValueError ( "invalid max APDU length accepted: %r" % ( arg , ) )
Return the encoding of the highest encodable value less than the value of the arg .
13,067
def encode ( self , pdu ) : if _debug : APCI . _debug ( "encode %r" , pdu ) PCI . update ( pdu , self ) if ( self . apduType == ConfirmedRequestPDU . pduType ) : buff = self . apduType << 4 if self . apduSeg : buff += 0x08 if self . apduMor : buff += 0x04 if self . apduSA : buff += 0x02 pdu . put ( buff ) pdu . put ( (...
encode the contents of the APCI into the PDU .
13,068
def decode ( self , pdu ) : if _debug : APCI . _debug ( "decode %r" , pdu ) PCI . update ( self , pdu ) buff = pdu . get ( ) self . apduType = ( buff >> 4 ) & 0x0F if ( self . apduType == ConfirmedRequestPDU . pduType ) : self . apduSeg = ( ( buff & 0x08 ) != 0 ) self . apduMor = ( ( buff & 0x04 ) != 0 ) self . apduSA ...
decode the contents of the PDU into the APCI .
13,069
def decode ( self , pdu ) : try : tag = pdu . get ( ) self . tagClass = ( tag >> 3 ) & 0x01 self . tagNumber = ( tag >> 4 ) if ( self . tagNumber == 0x0F ) : self . tagNumber = pdu . get ( ) self . tagLVT = tag & 0x07 if ( self . tagLVT == 5 ) : self . tagLVT = pdu . get ( ) if ( self . tagLVT == 254 ) : self . tagLVT ...
Decode a tag from the PDU .
13,070
def app_to_context ( self , context ) : if self . tagClass != Tag . applicationTagClass : raise ValueError ( "application tag required" ) if ( self . tagNumber == Tag . booleanAppTag ) : return ContextTag ( context , chr ( self . tagLVT ) ) else : return ContextTag ( context , self . tagData )
Return a context encoded tag .
13,071
def context_to_app ( self , dataType ) : if self . tagClass != Tag . contextTagClass : raise ValueError ( "context tag required" ) if ( dataType == Tag . booleanAppTag ) : return Tag ( Tag . applicationTagClass , Tag . booleanAppTag , struct . unpack ( 'B' , self . tagData ) [ 0 ] , '' ) else : return ApplicationTag ( ...
Return an application encoded tag .
13,072
def encode ( self , pdu ) : if _debug : BSLCI . _debug ( "encode %r" , pdu ) PCI . update ( pdu , self ) pdu . put ( self . bslciType ) pdu . put ( self . bslciFunction ) if ( self . bslciLength != len ( self . pduData ) + 4 ) : raise EncodingError ( "invalid BSLCI length" ) pdu . put_short ( self . bslciLength )
encode the contents of the BSLCI into the PDU .
13,073
def decode ( self , pdu ) : if _debug : BSLCI . _debug ( "decode %r" , pdu ) PCI . update ( self , pdu ) self . bslciType = pdu . get ( ) if self . bslciType != 0x83 : raise DecodingError ( "invalid BSLCI type" ) self . bslciFunction = pdu . get ( ) self . bslciLength = pdu . get_short ( ) if ( self . bslciLength != le...
decode the contents of the PDU into the BSLCI .
13,074
def ConsoleLogHandler ( loggerRef = '' , handler = None , level = logging . DEBUG , color = None ) : if isinstance ( loggerRef , logging . Logger ) : pass elif isinstance ( loggerRef , str ) : if not loggerRef : loggerRef = _log elif loggerRef not in logging . Logger . manager . loggerDict : raise RuntimeError ( "not a...
Add a handler to stderr with our custom formatter to a logger .
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def call_me ( iocb ) : if _debug : call_me . _debug ( "callback_function %r" , iocb ) print ( "call me, %r or %r" % ( iocb . ioResponse , iocb . ioError ) )
When a controller completes the processing of a request the IOCB can contain one or more functions to be called .
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def get_object_class ( object_type , vendor_id = 0 ) : if _debug : get_object_class . _debug ( "get_object_class %r vendor_id=%r" , object_type , vendor_id ) cls = registered_object_types . get ( ( object_type , vendor_id ) ) if _debug : get_object_class . _debug ( " - direct lookup: %s" , repr ( cls ) ) if ( not cl...
Return the class associated with an object type .
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def _attr_to_property ( self , attr ) : prop = self . _properties . get ( attr ) if not prop : raise PropertyError ( attr ) return prop
Common routine to translate a python attribute name to a property name and return the appropriate property .
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def add_property ( self , prop ) : if _debug : Object . _debug ( "add_property %r" , prop ) self . _properties = _copy ( self . _properties ) self . _properties [ prop . identifier ] = prop self . _values [ prop . identifier ] = prop . default
Add a property to an object . The property is an instance of a Property or one of its derived classes . Adding a property disconnects it from the collection of properties common to all of the objects of its class .
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def delete_property ( self , prop ) : if _debug : Object . _debug ( "delete_property %r" , prop ) self . _properties = _copy ( self . _properties ) del self . _properties [ prop . identifier ] if prop . identifier in self . _values : del self . _values [ prop . identifier ]
Delete a property from an object . The property is an instance of a Property or one of its derived classes but only the property is relavent . Deleting a property disconnects it from the collection of properties common to all of the objects of its class .
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def debug_contents ( self , indent = 1 , file = sys . stdout , _ids = None ) : klasses = list ( self . __class__ . __mro__ ) klasses . reverse ( ) previous_attrs = ( ) for c in klasses : attrs = getattr ( c , '_debug_contents' , ( ) ) if attrs is previous_attrs : continue for attr in attrs : file . write ( "%s%s = %s\n...
Print out interesting things about the object .
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def encode ( self , pdu ) : if _debug : BVLCI . _debug ( "encode %s" , str ( pdu ) ) PCI . update ( pdu , self ) pdu . put ( self . bvlciType ) pdu . put ( self . bvlciFunction ) if ( self . bvlciLength != len ( self . pduData ) + 4 ) : raise EncodingError ( "invalid BVLCI length" ) pdu . put_short ( self . bvlciLength...
encode the contents of the BVLCI into the PDU .
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def decode ( self , pdu ) : if _debug : BVLCI . _debug ( "decode %s" , str ( pdu ) ) PCI . update ( self , pdu ) self . bvlciType = pdu . get ( ) if self . bvlciType != 0x81 : raise DecodingError ( "invalid BVLCI type" ) self . bvlciFunction = pdu . get ( ) self . bvlciLength = pdu . get_short ( ) if ( self . bvlciLeng...
decode the contents of the PDU into the BVLCI .
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def indication ( self , * args , ** kwargs ) : if not self . current_terminal : raise RuntimeError ( "no active terminal" ) if not isinstance ( self . current_terminal , Server ) : raise RuntimeError ( "current terminal not a server" ) self . current_terminal . indication ( * args , ** kwargs )
Downstream packet send to current terminal .
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def confirmation ( self , * args , ** kwargs ) : if not self . current_terminal : raise RuntimeError ( "no active terminal" ) if not isinstance ( self . current_terminal , Client ) : raise RuntimeError ( "current terminal not a client" ) self . current_terminal . confirmation ( * args , ** kwargs )
Upstream packet send to current terminal .
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def do_ReadPropertyRequest ( self , apdu ) : if _debug : ReadWritePropertyServices . _debug ( "do_ReadPropertyRequest %r" , apdu ) objId = apdu . objectIdentifier if ( objId == ( 'device' , 4194303 ) ) and self . localDevice is not None : if _debug : ReadWritePropertyServices . _debug ( " - wildcard device identifie...
Return the value of some property of one of our objects .
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def do_WritePropertyRequest ( self , apdu ) : if _debug : ReadWritePropertyServices . _debug ( "do_WritePropertyRequest %r" , apdu ) obj = self . get_object_id ( apdu . objectIdentifier ) if _debug : ReadWritePropertyServices . _debug ( " - object: %r" , obj ) if not obj : raise ExecutionError ( errorClass = 'object...
Change the value of some property of one of our objects .
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def do_ReadPropertyMultipleRequest ( self , apdu ) : if _debug : ReadWritePropertyMultipleServices . _debug ( "do_ReadPropertyMultipleRequest %r" , apdu ) resp = None read_access_result_list = [ ] for read_access_spec in apdu . listOfReadAccessSpecs : objectIdentifier = read_access_spec . objectIdentifier if _debug : R...
Respond to a ReadPropertyMultiple Request .
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def handle_write ( self ) : if _debug : UDPDirector . _debug ( "handle_write" ) try : pdu = self . request . get ( ) sent = self . socket . sendto ( pdu . pduData , pdu . pduDestination ) if _debug : UDPDirector . _debug ( " - sent %d octets to %s" , sent , pdu . pduDestination ) except socket . error , err : if _de...
get a PDU from the queue and send it .
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def indication ( self , pdu ) : if _debug : UDPDirector . _debug ( "indication %r" , pdu ) addr = pdu . pduDestination peer = self . peers . get ( addr , None ) if not peer : peer = self . actorClass ( self , addr ) peer . indication ( pdu )
Client requests are queued for delivery .
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def _response ( self , pdu ) : if _debug : UDPDirector . _debug ( "_response %r" , pdu ) addr = pdu . pduSource peer = self . peers . get ( addr , None ) if not peer : peer = self . actorClass ( self , addr ) peer . response ( pdu )
Incoming datagrams are routed through an actor .
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def subscriptions ( self ) : if _debug : ChangeOfValueServices . _debug ( "subscriptions" ) subscription_list = [ ] for obj , cov_detection in self . cov_detections . items ( ) : for cov in cov_detection . cov_subscriptions : subscription_list . append ( cov ) return subscription_list
Generator for the active subscriptions .
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def bind ( * args ) : if _debug : bind . _debug ( "bind %r" , args ) if not args : for cid , client in client_map . items ( ) : if client . clientPeer : continue if not cid in server_map : raise RuntimeError ( "unmatched server {!r}" . format ( cid ) ) server = server_map [ cid ] if server . serverPeer : raise RuntimeE...
bind a list of clients and servers together top down .
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def encode ( self , pdu ) : if _debug : NPCI . _debug ( "encode %s" , repr ( pdu ) ) PCI . update ( pdu , self ) pdu . put ( self . npduVersion ) if self . npduNetMessage is not None : netLayerMessage = 0x80 else : netLayerMessage = 0x00 dnetPresent = 0x00 if self . npduDADR is not None : dnetPresent = 0x20 snetPresent...
encode the contents of the NPCI into the PDU .
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def decode ( self , pdu ) : if _debug : NPCI . _debug ( "decode %s" , str ( pdu ) ) PCI . update ( self , pdu ) if len ( pdu . pduData ) < 2 : raise DecodingError ( "invalid length" ) self . npduVersion = pdu . get ( ) if ( self . npduVersion != 0x01 ) : raise DecodingError ( "only version 1 messages supported" ) self ...
decode the contents of the PDU and put them into the NPDU .
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def del_actor ( self , actor ) : if _debug : TCPClientDirector . _debug ( "del_actor %r" , actor ) del self . clients [ actor . peer ] if self . serviceElement : self . sap_request ( del_actor = actor ) if actor . peer in self . reconnect : connect_task = FunctionTask ( self . connect , actor . peer ) connect_task . in...
Remove an actor when the socket is closed .
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def indication ( self , pdu ) : if _debug : TCPClientDirector . _debug ( "indication %r" , pdu ) addr = pdu . pduDestination client = self . clients . get ( addr , None ) if not client : client = self . actorClass ( self , addr ) client . indication ( pdu )
Direct this PDU to the appropriate server create a connection if one hasn t already been created .
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def indication ( self , pdu ) : if _debug : TCPServerDirector . _debug ( "indication %r" , pdu ) addr = pdu . pduDestination server = self . servers . get ( addr , None ) if not server : raise RuntimeError ( "not a connected server" ) server . indication ( pdu )
Direct this PDU to the appropriate server .
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def indication ( self , pdu ) : if _debug : StreamToPacket . _debug ( "indication %r" , pdu ) for packet in self . packetize ( pdu , self . downstreamBuffer ) : self . request ( packet )
Message going downstream .
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def confirmation ( self , pdu ) : if _debug : StreamToPacket . _debug ( "StreamToPacket.confirmation %r" , pdu ) for packet in self . packetize ( pdu , self . upstreamBuffer ) : self . response ( packet )
Message going upstream .