705x2b1s - CCSDS

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RECOMMENDATION FOR ADVANCED ORBITING SYSTEMS3.2 ABSTRACT DATA TYPESCCSDS HISTORICAL DOCUMENTlibrary CCSDSPacket, PathID, Boolean, NaturalNumber,Bit, SecondaryHeaderIndicator, DataLossIndicator endlib3.2.1 Service TypeThe Service type describes the two flavours of service available at the Path SAPs; Packet, wherethe user passes CCSDS Packets across the service interface and OctetString, where the userpasses a block of data across the service interface. The Packet service is referred to in theLOTOS as ‘UserFormatted’ to avoid confusion with other uses of the term ‘Packet’.type Service is Booleansorts Serviceopns UserFormatted : -> ServiceOctetString: -> Service_Ne_: Service, Service -> Bool_Eq_: Service, Service -> Booleqns forall S1, S2 : Serviceofsort BoolUserFormatted Eq UserFormattedUserFormatted Eq OctetStringOctetString Eq UserFormattedOctetString Eq OctetStringS1 Ne S2= True;= False;= False;= True;= Not (S1 Eq S2);endtypeCCSDS 705.2-B-1 Page 3-2 May 1994CCSDS HISTORICAL DOCUMENT
3.2.2 Packet QueueCCSDS HISTORICAL DOCUMENTRECOMMENDATION FOR ADVANCED ORBITING SYSTEMStype PacketQueue is CCSDSPacket, Booleansorts PacketQueueopns Create: -> PacketQueueAddBack: CCSDSPacket, PacketQueue -> PacketQueueFirst: PacketQueue -> CCSDSPacketRemoveFirst : PacketQueue -> PacketQueue_Eq_, _Ne_ : PacketQueue, PacketQueue -> Booleqns forall P1 : CCSDSPacket, PQ1, PQ2 : PacketQueueendtypeofsort PacketQueueRemoveFirst(Create) = Create ;RemoveFirst(AddBack(P1, Create)) = Create ;RemoveFirst(AddBack(P1, PQ1)) = AddBack(P1, RemoveFirst(PQ1)) ;ofsort CCSDSPacketFirst(AddBack(P1, Create)) = P1 ;First(AddBack(P1, PQ1)) = First(PQ1) ;ofsort BoolCreate Eq Create = True ;Create Eq AddBack(P1, Create) = False ;Create Eq AddBack(P1, PQ1) = False ;AddBack(P1, Create) Eq Create = False ;AddBack(P1, PQ1) Eq Create = False ;PQ1 Ne PQ2 = Not(PQ1 Eq PQ2) ;CCSDS 705.2-B-1 Page 3-3 May 1994CCSDS HISTORICAL DOCUMENT
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Page 3 and 4: CCSDS HISTORICAL DOCUMENTRECOMMENDA
Page 5 and 6: RECOMMENDATION FOR ADVANCED ORBITIN
Page 9 and 10: CCSDS HISTORICAL DOCUMENT1 INTRODUC
Page 11 and 12: 2.1.2 Logical Data PathsCCSDS HISTO
Page 15 and 16: 2.2.2 Relaying TableCCSDS HISTORICA
Page 19 and 20: 2.3 THE BEHAVIOURRECOMMENDATION FOR
Page 27 and 28: 2.3.4 TransferOut ProcessRECOMMENDA
Page 29: CCSDS HISTORICAL DOCUMENT3 PATH SER
Page 41 and 42: Path Protocol Test 1RECOMMENDATION
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Page 47 and 48: Path Protocol Test3RECOMMENDATION F
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CCSDS HISTORICAL DOCUMENTRECOMMENDA
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Path Protocol Test 12RECOMMENDATION
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705x2b1s - CCSDS

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