SNAX/APC Application Programming Manual

Application Prototype Simulator
SNAX/APC Application Programming Manual—138786
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SEND-ERROR (F8)
SEND-ERROR (F8)
The SEND-ERROR verb notifies the partner TP that the local TP has detected an error.
The local TP can issue the SEND-ERROR verb in either the Send or Receive state. If
the local TP is in the Receive state, the SEND-ERROR verb notifies the partner TP that
the received data cannot be processed. If the local TP is in the Send state, the SEND-
ERROR verb notifies the partner TP that recently sent data contains an error. The
SEND-ERROR verb does not terminate the conversation.
If the local TP is in the Send state, the SEND-ERROR verb causes SNAX/APC to
transmit the contents of the send buffer to the partner TP. The FMH-7 response
generated by the SEND-ERROR verb is not transmitted until a later request causes the
send buffer to be transmitted again. The SEND-ERROR verb completes immediately.
If the local TP is in Receive state, the SEND-ERROR verb completes immediately and
changes the local TP to Send state. SNAX/APC sends a negative response to the remote
TP. The FMH-7 generated by the SEND-ERROR verb is not transmitted until a later
request flushes the buffer again. The FMH-7 directs the remote LU to halt the data flow;
the remote LU responds with end-of-chain and change direction indicators.
Request Fields
Program Type (0)
specifies the type of error being sent. The value 0 specifies the type of error is
PROGRAM-TYPE.
The value 2 specifies the type of error is BACKOUT-NO-RESYNC.
Resynchronization is not possible after the Backout operation.
The value 3 specifies the type of error is BACKOUT-RESYNC. Resynchronization
is possible after the Backout operation.
SNAX/APC Application Prototype Simulator (APS) System (T9096D30 15FEB95 21c)
Request: Send_Error Resource ID: 1 0 0 1 0 0
Program Type (0): 0000
Reply: Send_Error
IPC Return Code: 0 IPC Ok
IPC Return Code Detail: 0 IPC Ok
UOWs In: 0001 UOWs Out: 0001
Header Return Code: 0 RC Ok
Request to Send Ind:
Request Completed
F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 F13 F14 F15 F16
TPR Aloc Deal TPE R&W RTS SD SE Cnf Cnfd GA Send Prnt Hex Rcov Exit
ActS Dact PRcv RcvI Flsh Gtyp GTP A(T) E(T) Exit