Application Programming Interfaces
This section describes the Application Programming Interfaces (APIs)
USR0340N, USR0341N, USR4340N, USR4341N and USR4342N, which are used for
handling Natural objects currently loaded in the buffer pool and/or BP cache.
The APIs are supplied in the Natural system library SYSEXT.
For further information on these APIs, see the following:
Related Topic:
| API |
Functionality |
| USR0340N |
-
Deletes objects from the buffer pool and/or BP cache.
-
Marks objects as resident.
-
Removes the resident flag from objects.
-
Reads object directory information.
-
Retrieves general buffer pool statistics and buffer pool
load/locate statistics.
Corresponding SYSBPM functions:
|
| USR0341N |
Collects garbage to clean up the buffer pool by removing objects
which are no longer needed.
Selection criteria for specified objects are the relative age of an
object. Relative age is the time the object has been loaded in the buffer pool
which calculates from BP Last Action date. Minimum age is
30 minutes.
See also the SYSBPM function .
|
| USR4340N |
We recommend that you use this interface for batch processing
instead of using the SYSBPM utility in batch.
Lists objects loaded in the buffer pool and/or BP cache sorted by
Object Size (ObjSize), Total Use
Count (TotalUC) or BP Last Action. BP
Last Action only applies to the buffer pool.
Corresponding SYSBPM functions:
|
| USR4341N |
Maintains a blacklist of Natural objects, which are not to be
executed and loaded into the buffer pool.
See also the SYSBPM function .
|
| USR4342N
|
-
Deletes objects from the message pool.
-
Lists messages from the message pool.
-
Retrieves message pool statistics.
Corresponding SYSBPM functions:
|
