Destroy Independent Index (DESINX)

Instruction Syntax

Op Code (Hex) Operand 1
0451 Index

Operand 1: System pointer.

Bound Program Access 
Built-in number for DESINX is 35.
DESINX (
        index   : address of system pointer
)

Description:

A previously created index identified by operand 1 is destroyed, and addressability to the object is removed from any context in which addressability exists. The system pointer identified by operand 1 is not modified by the instruction, and a subsequent reference to the destroyed index through the pointer results in an object destroyed (hex 2202) exception.

Permanent index objects cannot be destroyed by user state programs when the system security level is 40 or above.

This operation will cause an object domain or hardware storage protection violation (hex 4401) exception if attempted from user state on an index object with the restrict index operations from user state at all security levels attribute set to binary 1.

Authorization Required

  • Object control
    • Operand 1
  • Execute
    • Contexts referenced for address resolution

Lock Enforcement

  • Materialize
    • Contexts referenced for address resolution
  • Object control
    • Operand 1
  • Modify
    • Access group which contains operand 1
    • Context which addresses operand 1
    • User profile which owns index

Exceptions

  • 06 Addressing
    • 0601 Space Addressing Violation
    • 0602 Boundary Alignment
    • 0603 Range
  • 08 Argument/Parameter
    • 0801 Parameter Reference Violation
  • 0A Authorization
    • 0A01 Unauthorized for Operation
  • 10 Damage Encountered
    • 1004 System Object Damage State
    • 1005 Authority Verification Terminated Due to Damaged Object
    • 1044 Partial System Object Damage
  • 1A Lock State
    • 1A01 Invalid Lock State
  • 1C Machine-Dependent
    • 1C03 Machine Storage Limit Exceeded
    • 1C11 Independent ASP Varied Off
  • 20 Machine Support
    • 2002 Machine Check
    • 2003 Function Check
  • 22 Object Access
    • 2201 Object Not Found
    • 2202 Object Destroyed
    • 2203 Object Suspended
    • 2207 Authority Verification Terminated Due to Destroyed Object
    • 2208 Object Compressed
    • 220B Object Not Available
  • 24 Pointer Specification
    • 2401 Pointer Does Not Exist
    • 2402 Pointer Type Invalid
    • 2403 Pointer Addressing Invalid Object Type
  • 2E Resource Control Limit
    • 2E01 User Profile Storage Limit Exceeded
  • 36 Space Management
    • 3601 Space Extension/Truncation
  • 44 Protection Violation
    • 4401 Object Domain or Hardware Storage Protection Violation