Recommendation for Space Data System Practices
Provider Side State Tables
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- 4.5.3.2Common State Table—User Initiated Binding
- 4.5.3.2.1.2Events sent to the Application Interface (ISLE_ServiceInform)
- 4.5.3.2.1.3Events received from the Management Interface (I _SIUpdate)
- 4.5.3.2.1.5Events sent to the Proxy Interface (ISLE_SrvProxyInitiate)
- 4.5.3.2.1.6Internal Events
- 4.5.3.2.3.1Discrete Actions
- 4.5.3.2.3.2Compound Actions
- 4.5.3.2.4Common State Table—Provider Side
- 4.5.3.3Return Link SLE Services
- 4.5.3.3.1.2Events sent to the Application Interface (ISLE_ServiceInform)
- 4.5.3.3.1.3Events received from the Proxy Interface (ISLE_SrvProxyInform)
- 4.5.3.3.1.5Internal Events
- 4.5.3.3.3.1Discrete Actions
- 4.5.3.3.3.2Compound Actions
- 4.5.3.3.4Return Link State Table—Provider Side
- 4.5.3.4Forward Link SLE Services
- 4.5.3.4.1.2Events sent to the Application Interface (ISLE_ServiceInform)
- 4.5.3.4.1.3Events received from the Proxy Interface (ISLE_SrvProxyInform)
- 4.5.3.4.1.4Events sent to the Proxy Interface (ISLE_SrvProxyInitiate)
- 4.5.3.4.3.1Discrete Actions
- 4.5.3.4.3.2Compound Actions
- 4.5.3.4.4Forward Link State Table—Provider Side
4.5.3Provider Side State Tables4.5.3.1StatesAll provider side state tables use the same set of states. The main states are identical to those defined in the CCSDS Recommended Standards for SLE transfer services. Sub-states have been added to allow presentation of further details related to the interactions with the application and the proxy. The states are defined as follows. UNBOUND:UNBOUND No user is bound. UNBOUND:BIND PEND A BIND invocation has been received, the application has not yet responded. READY:BOUND A BIND has been sent to the user and no START invocation has been received yet, or a STOP operation has been completed. READY:START PEND A START invocation has been received, the application has not yet responded. READY:UNBIND PEND An UNBIND invocation has been received, the application has not yet responded. ACTIVE:ACTIVE A START return with a positive result has been sent to the user. ACTIVE:STOP PEND A STOP invocation has been received, the application has not yet responded. NOTE – Sub-states are only shown in the tables if needed. If the processing is identical for all sub-states, only the main state is entered in the table.
4.5.3.2.1Events4.5.3.2.1.1Events received from the Application Interface (ISLE_ServiceInitiate)BindRet call to InitiateOpReturn() with a Bind operation UnbindRet call to InitiateOpReturn() with a Unbind operation PeerAbortInv call to InitiateOpInvoke() with a Peer Abort operation
UnbindInv call to InformOpInvoke() with a Unbind operation PeerAbortInv call to InformOpInvoke() with a PEER-ABORT operation ProtocolAbort call to ProtocolAbort() PPends call to ProvisionPeriodEnds()
4.5.3.2.1.4Events received from the Proxy Interface (ISLE_SrvProxyInform)BindInv call to InformOpInvoke() with a BIND operation UnbindInv call to InformOpInvoke() with a UNBIND operation GetPrmInv call to InformOpInvoke() with a GET-PARAMETER operation ScheduleStatRepInv call to InformOpInvoke() with a SCHEDULE-STATUS-REPORT operation PeerAbortInv call to InformOpInvoke() with a PEER-ABORT operation ProtocolAbort call to ProtocolAbort() 4.5.3.2.1.5Events sent to the Proxy Interface (ISLE_SrvProxyInitiate)BindRet call to InitiateOpReturn() with a BIND operation UnbindRet call to InitiateOpReturn() with a UNBIND operation GetPrmRet call to InitiateOpReturn() with a GET-PARAMETER operation ScheduleStatRepRet call to InitiateOpReturn() with a SCHEDULE-STATUS-REPORT operation StatusRepInv call to InitiateOpInvoke() with a STATUS-REPORT operation PeerAbortInv call to InitiateOpInvoke() with a PEER-ABORT operation 4.5.3.2.1.6Internal EventsReport timer expired the periodic status report timer has expired Return timeout the time to wait for a specific return-PDU has elapsed Provision period ends the service instance provision period has ended Peer Abort peer abort event generated by a pre-processing function 4.5.3.2.2Predicatesdelivery mode = offline The delivery mode of the service instance is ‘offline’. report timer active The periodic status report timer is active. reason = end The unbind-reason is ‘end of service provision’. reason <> end The unbind-reason is not equal ‘end of service provision’. result = positive The result parameter in the PDU indicates ‘positive result’. result = negative The result parameter in the PDU indicates ‘negative result’. type = stop The type parameter in the schedule-status-report invocation is set to ‘stop’. type = periodically The type parameter in the schedule-status-report invocation is set to ‘periodically’. 4.5.3.2.3Actions4.5.3.2.3.1Discrete Actions/reject(reason) Reject the event by returning an error code to the function invoking the event. /cancel report timer Cancel the periodic status-report timer, if active. /start report timer Start the periodic status-report timer. /generate end of PP Generate the internal event ‘Provision period ends’. /clear remote returns Cancel return timers for all pending remote returns, clear the list of pending remote returns, and release operation objects. /store parameter value Store the value of the service parameter passed. 4.5.3.2.3.2Compound Actions/PROCESS SSREP(type) is defined as IF delivery mode = offline THEN /reject(not supported in this delivery mode) ELSE
IF type = stop THEN /cancel report timer ^PIF.ScheduleStatusRepRet(positive result) ELSE PIF.ScheduleStatusRepRet(already stopped) END IF ELSE
/cancel report timer ^PIF.ScheduleStatusRepRet(positive result) ^PIF.StatusReportInv IF type = periodically THEN /start report timer END IF
END IF END IF
/ABORT(diagnostic) Abort processing is forward/return-service specific (see /ABORT in 4.5.3.3 and 4.5.3.4). /CLEANUP Cleanup processing is forward/return-service specific (see /CLEANUP in 4.5.3.3 and 4.5.3.4). 4.5.3.2.4Common State Table—Provider Side
NOTES
4.5.3.3Return Link SLE Services4.5.3.3.1Events4.5.3.3.1.1Events received from the Application Interface (ISLE_ServiceInitiate)StartRet call to InitiateOpReturn() with a START operation StopRet call to InitiateOpReturn() with a STOP operation TransferDataInv call to InitiateOpInvoke() with a TRANSFER DATA operation SyncNotifyInv call to InitiateOpInvoke() with a SYNC NOTIFY operation 4.5.3.3.1.2Events sent to the Application Interface (ISLE_ServiceInform)StartInv call to InformOpInvoke() with a START operation StopInv call to InformOpInvoke() with a STOP operation ResumeDataTransfer call to ResumeDataTransfer() PeerAbortInv call to InformOpInvoke() with a PEER-ABORT operation 4.5.3.3.1.3Events received from the Proxy Interface (ISLE_SrvProxyInform)StartInv call to InformOpInvoke() with a START operation StopInv call to InformOpInvoke() with a STOP operation PDUTransmitted call to PDUTransmitted()
4.5.3.3.1.4Events sent to the Proxy Interface (ISLE_SrvProxyInitiate)StartRet call to InitiateOpReturn() with a START operation StopRet call to InitiateOpReturn() with a STOP operation TransferBufferInv call to InitiateOpInvoke() with a TRANSFER BUFFER operation. This event is always transmitted with the request to notify transmission of the PDU. DiscardBuffer call to DiscardBuffer() PeerAbortInv call to InitiateOpInvoke() with a PEER-ABORT operation
4.5.3.3.2Predicatesresult = positive The result parameter in the PDU indicates ‘positive result’. result = negative The result parameter in the PDU indicates ‘negative result’. timely online The delivery mode is timely online. complete online The delivery mode is complete online. online The delivery mode is either timely online or complete online. buffer full The transfer buffer is full. buffer queued A transfer buffer has been passed to the proxy for transfer and the PDU Transmitted event has not yet been received for that buffer. buffer empty The transfer buffer is empty. buffer discarded The proxy has actually discarded the queued transfer buffer as indicated by the return code. buffer transmitted The transfer buffer passed to the proxy could be transmitted immediately as indicated by the return code of the function. data transfer suspended The application has been requested to suspend data transfer to the user. end of data The SYNC NOTIFY invocation is ‘end of data’. 4.5.3.3.3Actions4.5.3.3.3.1Discrete Actions/reject(reason) Reject the event by returning an error code to the function invoking the event. /clear remote returns Cancel return times for all pending remote returns, clear the list of pending remote returns, and release operation objects. /clear local returns Clear the list of pending local returns and release operation objects. /cancel report timer Cancel the periodic status-report timer, if active. /reset service parameters Reset the service parameters to the initial values. Resetting of service parameters must be checked individually for each parameter. Depending on the service type some parameters may have to be reset to the initial values, while others must keep their current values. /start release timer Start the release timer. /cancel release timer Cancel the release timer, if active. /create new buffer Create a new transfer buffer. /append PDU Append the PDU to the transfer buffer. /prepend notification Prepend the SYNC-NOTIFY invocation, indicating ‘data discarded due to excessive backlog’, to the transfer buffer. /discard buffer Discard transfer buffer and all contained PDUs. /suspend data transfer Request the application to suspend data transfer. 4.5.3.3.3.2Compound Actions/ABORT(diagnostic) is defined as ^PIF.PeerAbort(diagnostic) ^AIF.PeerAbort(diagnostic) /CLEANUP
/CLEANUP is defined as /clear remote returns /clear local returns /cancel release timer /cancel report timer /discard buffer /set data transfer suspended = FALSE /set buffer queued = FALSE /reset service parameters
IF online and buffer empty THEN /start release timer END IF
/append PDU IF buffer full THEN IF buffer queued THEN ^PIF.DiscardBuffer /prepend notification END IF
^PIF.TransferBuffer IF not buffer transmitted THEN /set buffer queued = TRUE END IF
/cancel release timer ELSE
IF complete online THEN /cancel release timer END IF /set data transfer suspended = TRUE /suspend data transfer END IF
ELSE IF online THEN /cancel release timer END IF
^PIF.TransferBuffer IF not buffer transmitted THEN /set buffer queued = TRUE END IF
END IF /create new buffer END IF NOTE – Processing as specified here, uses a single transfer buffer. Multiple buffers can be used by an implementation to increase performance. /PROCESS RELEASE TIMER is defined as IF buffer queued THEN IF timely online THEN ^PIF.DiscardBuffer IF buffer discarded THEN /prepend notification END IF END IF
IF complete online THEN /suspend data transfer END IF END IF
^PIF.TransferBuffer IF not buffer transmitted THEN /set buffer queued = TRUE END IF
/create new buffer /PROCESS PDU TRANSMITTED is defined as /set buffer queued = FALSE IF data transfer suspended THEN /set data transfer suspended = FALSE ^AIF.ResumeDataTransfer END IF
/PROCESS STOP PDU is defined as IF not buffer empty THEN IF online THEN /cancel release timer END IF IF timely online THEN IF buffer queued THEN ^PIF.DiscardBuffer IF buffer discarded THEN /prepend notification END IF END IF
END IF ^PIF.TransferBuffer IF not buffer transmitted THEN /set buffer queued = TRUE END IF END IF
/PROCESS EOD is defined as /append PDU IF online THEN /cancel release timer END IF IF timely online THEN IF buffer queued THEN ^PIF.DiscardBuffer IF buffer discarded THEN /prepend notification END IF END IF
END IF ^PIF.TransferBuffer IF not buffer transmitted THEN /set buffer queued = TRUE END IF /create new buffer 4.5.3.3.4Return Link State Table—Provider Side
4.5.3.4Forward Link SLE Services4.5.3.4.1Events4.5.3.4.1.1Events received from the Application Interface (ISLE_ServiceInitiate)StartRet call to InitiateOpReturn() with a START operation StopRet call to InitiateOpReturn() with a STOP operation TransferDataRet call to InitiateOpReturn() with a TRANSFER DATA operation InvokeDirectiveRet call to InitiateOpReturn() with an INVOKE DIRECTIVE operation AsyncNotifyInv call to InitiateOpInvoke() with an ASYNC NOTIFY operation ThrowEventRet call to InitiateOpInvoke() with a THROW-EVENT operation 4.5.3.4.1.2Events sent to the Application Interface (ISLE_ServiceInform)StartInv call to InformOpInvoke() with a START operation StopInv call to InformOpInvoke() with a STOP operation TransferDataInv call to InformOpInvoke() with a TRANSFER DATA operation InvokeDirectiveInv call to InformOpInvoke() with an INVOKE DIRECTIVE operation ThrowEventInv call to InformOpInvoke() with a THROW-EVENT operation PeerAbortInv call to InformOpInvoke() with a PEER-ABORT operation 4.5.3.4.1.3Events received from the Proxy Interface (ISLE_SrvProxyInform)StartInv call to InformOpInvoke() with a START operation StopInv call to InformOpInvoke() with a STOP operation TransferDataInv call to InformOpInvoke() with a TRANSFER DATA operation InvokeDirectiveInv call to InformOpInvoke() with an INVOKE DIRECTIVE operation ThrowEventInv call to InformOpInvoke() with a THROW-EVENT operation
StopRet call to InitiateOpReturn() with a STOP operation TransferDataRet call to InitiateOpReturn() with a TRANSFER DATA operation InvokeDirectiveRet call to InitiateOpReturn() with a INVOKE DIRECTIVE operation AsyncNotifyInv call to InitiateOpInvoke() with an ASYNC-NOTIFY operation ThrowEventRet call to InitiateOpReturn() with a THROW-EVENT operation PeerAbortInv call to InitiateOpInvoke() with a PEER-ABORT operation
4.5.3.4.2Predicatesresult = positive The result parameter in the PDU indicates ‘positive result’. result = negative The result parameter in the PDU indicates ‘negative result’. 4.5.3.4.3Actions4.5.3.4.3.1Discrete Actions/reject(reason) Reject the event by returning an error code to the function invoking the event. /clear remote returns Cancel return timers for all pending remote returns, clear the list of pending remote returns, and release the operation objects. /clear local returns Clear the list of pending local returns and release the operation objects. /cancel report timer Cancel the periodic status-report timer, if active. /reset service parameters Reset the service parameters to the initial values. Resetting of service parameters must be checked individually for each parameter. Depending on the service type some parameters may have to be reset to the initial values, while others must keep their current values.
^PIF.PeerAbort(diagnostic) ^AIF.PeerAbort(diagnostic) /CLEANUP
/CLEANUP is defined as /clear remote returns /clear local returns /cancel report timer /reset service parameters
NOTE – The operation THROW EVENT is defined in the transfer services but the associated management support is not yet in place. As long as this situation exists, applications should respond with a return holding a negative result and the diagnostic ‘other reason’. Directory: sec -> docs -> 201510 Documents for SC13 Submission sec -> Security Education Narrative Database Patterns of Professional Education sec -> Guidelines for implementation of Prime Minister’s New 15 Point Programme for the Welfare of Minorities sec -> Morphodynamics of a Constructed Marsh: Project Greenshores, Pensacola, Florida sec -> Registration 6: 00pm – 6: 10pm Welcome/Opening Remarks sec -> ¡bienvenidos! Welcome to Puerto Rico! 2 Things to know immediately upon arrival 2 sec -> Cadillac Racing cts-v coupe Media Kit sec -> Sure Bet Narrative Nonfiction Suggestions sec -> Executive Board of the United Nations Development Programme, the United Nations Population Fund and the United Nations Office for Project Services 201510 Documents for SC13 Submission -> Recommendation for Space Data System Practices Download 2.26 Mb. Share with your friends:
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