CONTENTS

  Title Page

  Copyright Page

  Preface

  1      Overview
    1.1 Introduction
    1.2 DCSC server Components
    1.3 Naming Conventions
      1.3.1      Named Constants
      1.3.2      DCSC RTL Routines
      1.3.3      File and Device Names
      1.3.4      Data Structures
    1.4 DCSC RTL and the DCSC Server Interface

  2      Applications Programming Considerations
    2.1 DCSC Server Configuration Maintenance
    2.2 Request Authorization Levels
      2.2.1      Unsupported Functions
    2.3 Option Flags
      2.3.1      DCSC_NOWAIT Option
      2.3.2      DCSC_FORCE Option
      2.3.3      DCSC_PRIVOP Option
      2.3.4      DCSC_XPOOLID Option (Extended Scratch Subpool ID Parameters)
    2.4 Response Data Files
    2.5 Data Input and Output Operations
    2.6 Virtual Device Assignments
    2.7 Status and Error Reporting
      2.7.1      Return Status
      2.7.2      Response Status
      2.7.3      Expanded Status
    2.8 Programming Environment Support
      2.8.1      Include Files
      2.8.2      DCSC RTL Data Types
    2.9 Compiling and Linking Application Programs
    2.10 Common Data Structures

  3      DCSC RTL Routine Descriptions

  CANCEL REQUEST

  CHECK REQUEST

  DISMOUNT SCRATCH

  DISMOUNT VOLUME

  EJECT VOLUME

  ENTER VOLUME

  GET_MESSAGE

  MOUNT SCRATCH

  MOUNT VOLUME

  QUERY ACS

  QUERY DRIVE

  QUERY DRIVE LIST

  QUERY FUNCTION

  QUERY LOGS

  QUERY LOGUNIT

  QUERY LSM

  QUERY REQUEST

  QUERY RESERVE

  QUERY SCRATCH

  QUERY SYSTEM

  QUERY VOLUME

  RELEASE DRIVE

  RELEASE SCRATCH

  RELEASE VOLUME

  REMOUNT SCRATCH

  REMOUNT VOLUME

  RESERVE DRIVE

  RESERVE SCRATCH

  RESERVE VOLUME

  SET FUNCTION

  SET LOG

  SET TRACE

  SET VOLUME

  SHUTDOWN

  A Sample DCSC RTL Program

  B DCSC RTL Request Type Codes

  C Error Status Codes