gtpi1m2wSystem Installation Support Reference

Clock Global Update Exits

The clock exits are used to update the subsystem user global clock and calendar fields. They are copy members that get expanded in other ECB-controlled clock segments. Each contains sample code which copies the global fields from the first subsystem user to the rest of the subsystem users in the subsystem. If the system does not contain multiple subsystem users, the sample code will return control to the expanding (or parent) segment.

Exit Parent Segment Function
GCALX CDTC Initializes the global calendar fields when the system is cycled above 1052 state.
GDATX CDTD Updates the global calendar fields whenever a midnight boundary is crossed.
GCLKX GLBL Updates the global clock fields every time a minute boundary is crossed.

The interface requirements for each user exit are described in the prologue of its parent segment.