Specifications

Operat ion Page 55
The Must-transact algorithm is:
Set no intervention, no error, and no message received.
WHILE no intervention AND no error AND no messaqe received.
Transmit message.
IF successful transmit:
Receive message.
CASE return-status
Receive successful:
.
Set message received.
Receive aborted:
Set intervention.
ENDCASE
ELSE
IF fatal transmit error:
Set error.
ENDIF
ENDIF
ENDWH
I LE
The Transact algorithm is:
Set retry counter to
0, no error, and no message received.
WHILE no error and no messaqe received.
~ransmit message.
IF successful transmit:
Receive message.
IF successful receive:
Set messaqe received.
ELSE
IF receive timed out:
IF retry counter
<= maximum-retries:
Increment retry counter.
ELSE
Set channel communication error.
END
I F
ELSE
Set error from Receive.
ENDIF
ENDIF
ELSE
Set error from Transmit.
END
I F
ENDWHI LE
This section describes the operation of the Dump/Load Server and
Requester. In this section the term "target system" describes the
system being dumped or loaded (i.e. the one running the Dump/Load
Requester).
The term "assisting system" describes the system that
is
providing file services
(i.e.
the one running the Dump/Load Server).