C user exit implementation functions

A set of implementation functions provide the functionality of the user exits.

Some implementation functions are mandatory, and must be implemented by the developer, as shown below.

This section covers the following topics:

Mandatory functions
Optional functions
Related concepts
Developing user exits
Planning user-defined extensions
Related tasks
Developing a user exit
Deploying a user exit
Developing user-defined extensions
Related reference
C user exit utility functions
C user exit API
C common API
C language user-defined node API
C language user-defined parser API
Header files