Table 62 summarizes the loader domain’s generic gates. It shows the level-1 trace point IDs of the modules providing the functions for the gates, the functions provided by the gates, and the generic formats for calls to the gates.
Gate | Trace | Function | Format |
---|---|---|---|
DMDM |
LD 6001 LD 6002 |
PRE_INITIALIZE INITIALIZE_DOMAIN QUIESCE_DOMAIN TERMINATE_DOMAIN |
DMDM |
STST |
LD 5001 LD 5002 |
COLLECT_STATISTICS COLLECT_RESOURCE_STATS |
STST |
SMNT |
LD 4001 LD 4002 |
STORAGE_NOTIFY | SMNT |
For descriptions of these functions and their input and output parameters, refer to the topics dealing with the corresponding generic formats:
In preinitialization processing, the LDLD gate is added, enabling programs to be loaded.
In initialization processing, on a cold start, the loader domain purges the loader program definitions (for user application programs and non-nucleus CICS® modules) from the CICS global catalog. The loader domain then reads program definitions from the local catalog, and makes them available to CICS.
On a warm or emergency start, the loader domain reads program definitions from the global and local CICS catalogs, and makes them available to CICS.
For any type of start, the loader domain loads the subset of CICS nucleus programs that are defined as resident.
In quiesce and termination processing, the loader domain performs only internal routines.
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