OSI/AS Programming Manual

Procedure Call Descriptions
APS Procedure Calls
3–4 056783 Tandem Computers Incorporated
Figure 3-1. Sample APS Procedure Call Description (Page 1 of 2)
status :=
This indicates the type of value that the procedure returns. For the
APS procedures, the variable name is always either
status or error. The
status values returned are from the list of ZAPS-VAL-STATUS- xxx status
codes given in Appendix B; the
error values returned are from
the list of ZAPS-ERR-
xxx error values given in Appendix B.
This is the name of the procedure. It must appear in the program
exactly as shown, including the underline characters. In a C program,
all letters in the name must be uppercase.
You must enclose the list of parameters in parentheses. Use commas
to separate multiple parameters. In the notation, optional parameters
are enclosed in square brackets (“[“ and “]”); these brackets must not
appear in the program. If you omit optional parameters, a placeholder
comma “,” must be present for each omitted parameter, except for
parameters omitted from the end of the list.
status := APS_ASSOC_ATTACH_ ( cepi ! O
,
api-environment ! I
,
local-appl ! I
,[
tag ] ! I
,[
service-id ] ! I
,[
subdevice-name ] ); ! I
status returned value
INT
indicates the outcome of the call...
cepi output
INT .EXT:ref:1
is the connection endpoint identifier (CEPI)...
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