Type ASSEMBLE
Source Lines : 748
Fixes Applied : 4
Most Recent Version : Thursday, December 7, 1978
Last Fix ID : [R12568DK]

Module

       DMKLOK

Function

       THE FUNCTION OF THIS ROUTINE IS TO PROVIDE A CENTRALIZED
       PLACE FOR ALL LOCKING MANIPULATIONS.  ALL LOCKING FUNCTIONS
       REQUIRED WHEN A LOCK IS NOT OBTAINED OR RELEASED ON THE
       FIRST ATTEMPT ARE DIRECTED TO THIS MODULE.  THIS ROUTINE
       WILL ALSO SERVE AS A CENTRAL SPIN FUNCTION FOR THE SYSTEM.
       ALL OBTAIN REQUESTS FOR THE VMBLOK LOCK WILL BE
       DIRECTED TO THIS MODULE.

Attributes

       RESIDENT, BALR CALLED

Operation

       SEE ENTRY POINT PROLOGUES

Calls to Other Routines

       DMKVMASW - TO FLIP SHARED SYSTEM SEGMENT POINTERS
       DMKCVTAB - ABEND IF STCK FAILS
       DMKSTKSW - STACK A PRIORITY CPEXBLOK