Modify Independent Index (MODINX)

Operand 2: Character(4) scalar.

Built-in number for MODINX is 39.
MODINX (
        independent_index     : address of system pointer
        modification_option   : address
)

Warning

The following information is subject to change from release to release. Use it with caution and be prepared to adjust for changes with each new release.

Description

Modify the selected attributes of the independent index specified by operand 1 to have the values specified in operand 2. The modification options specified in operand 2 have the following format:

If the immediate update attribute of the index was previously set to no immediate update, and it is being modified to immediate update, then the index is ensured before the attribute is modified.

If the modification selection index coherency tracking is binary 0, then the index coherency tracking attribute is not changed. If the modification selection index coherency tracking bit is binary 1, the index coherency tracking attribute is changed to the new attribute value index coherency tracking value.

If the modification selection reset index is binary 0, then the index is not reset. If the modification selection reset index is binary 1, then the index will be reset to its state at create time. In addition, all entries will be removed and any additional allocated space will be freed.

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 management

  • Operand 1

• Execute

  • Contexts referenced for address resolution

Lock Enforcement

• Modify

  • Operand 1

• Materialization

  • Contexts referenced for address resolution

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
• 1C0E IASP Resources 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

32 Scalar Specification

• 3201 Scalar Type Invalid
• 3202 Scalar Attributes Invalid

36 Space Management

• 3601 Space Extension/Truncation

44 Protection Violation

• 4401 Object Domain or Hardware Storage Protection Violation