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Handling Errors
Your application logic should test for error conditions for the calls that have return values, and take appropriate action when an error occurs.
The following example shows a typical method of handling errors. The term ATMICALL(3) is used in this example to represent a generic ATMI call.
Handling Errors
. . .
CALL "TPINITIALIZE" USING TPINFDEF-REC
USR-DATA-REC
TPSTATUS-REC.
IF NOT TPOK
error message, EXIT PROGRAM
CALL "TPBEGIN" USING TPTRXDEF-REC
TPSTATUS-REC.
IF NOT TPOK
error message, EXIT PROGRAM
Make atmi calls
Check return values
IF TPEINVAL
DISPLAY "Invalid arguments were given."
IF TPEPROTO
DISPLAY "A call was made in an improper context."
. . .
Include all error cases described in the ATMICALL(3)
reference page. Other return codes are not possible,
so there is no need to test them.
. . .
continue
The values of TP-STATUS provide details about the nature of each problem and suggest the level at which it can be corrected. If your application defines a list of error conditions specific to your processing, the same can be said for the values of APPL-RETURN-CODE IN TPSTATUS-REC.
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Copyright © 2000 BEA Systems, Inc. All rights reserved.
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