Table of Contents

DMTGIV Abstract

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Type ASSEMBLE
Source Lines : 176
Fixes Applied : 0
Most Recent Version : Thursday, December 7, 1978
Last Fix ID : [Unmodified]

Synopsis

Module 

       DMTGIV

Function 

       DMTGIV IS A SUPERVISOR SERVICE ROUTINE WHICH ENQUEUES
       GIVE REQUESTS FROM TASKS TO BE DELIVERED TO OTHER
       TASKS BY DMTAKE.

Attributes 

       REUSABLE, NON-INTERRUPTABLE

Operation 

       DMTGIV  BEGINS  PROCESSING  BY SUSPENDING  CALLING
       TASK EXECUTION THROUGH THE  FREEZE SVC FUNCTION. A
       SUPERVISOR STATUS QUEUE ELEMENT  IS GOTTEN THROUGH
       A  CALL  TO  DMTQRQ,  A  GIVE  REQUEST ELEMENT  IS
       BUILT  USING  THE  INFORMATION   SUPPLIED  BY  THE
       CALLING TASK, AND  THE ELEMENT IS ENQUEUED  ON THE
       GIVE REQUEST QUEUE. THE ADDRESSED TASK IS LOCATED,
       AND  IF ITS  REQUEST  ARRIVAL  SYNCH LOCK  IS  NOT
       ALREADY POSTED,  IT IS POSTED BY  DMTGIV.  CONTROL
       IS RETURNED TO THE DISPATCHER.

Calls to Other Routines 

       DMTQRQ -   TO RESERVE AND RELEASE SUP QUEUE ELEMENTS
       DMTPST -   TO NOTIFY A TASK OF REQUEST AVAILABILITY