FTAM/9000 Programmer's Guide

338 Chapter 9
Handling Errors
Interpreting Errors
Interpreting Errors
Your program detects errors in two locations.
• Function Return Values (includes Event Management (EM) values)
• Output parameters
Function Return Values
Function return values indicate whether an error occurred.
• Function return values return in the program as integers.
• These values may occur because of errors on previous calls. For
example, if the first call within a group fails, thereafter every function
within the group fails.
• The value zero indicates SUCCESS.
Refer to the HP FTAM/9000 Reference Manual for a list of function
return values.
Synchronous Calls • If the value is SUCCESS, the request
successfully passed to the application
interface, ftam_init, and responder, and
returned back to the user program.
• If the value indicates an error, the
application interface, ftam_init, or responder
detected the error.
Asynchronous
Calls
• If the value is SUCCESS, the request
successfully passed from the application
interface to ftam_init.
• If the value indicates an error, the
application interface detected the error.