User Exits › Move Request MSL Exit Programs › Exit Calls

Exit Calls

You specify, in the Library Code definition, the MSL exit program to be invoked when an MSL is requested for a data set in the Library Code. If the Library Code does not specify an MSL exit program, a message to that effect is displayed at the user's terminal, and the MSL request is not processed.

The MSL Exit is called only when requested through a field on the Member Moves panel. The APXXFUNC field in the Exit Parameter Structure contains a code that indicates which of the following functions were being performed when the exit was called. (An exit can use the value of this code to determine processing requirements.)