gtps1m19System Macros

$ULKRC-Unlock a Virtual File Access (VFA) or Record Hold Table (RHT) Lock

Use this system macro to unlock a virtual file access (VFA) or a record hold table (RHT) lock.

Format




label
A symbolic name can be assigned to the macro statement.

LOCK
Specifies the type of lock, where:

VFA
Specifies a VFA lock.

RHT
Specifies an RHT lock.

TYPE
Specifies whether the lock is immediate or delayed, where:

I
Specifies immediate.

D
Specifies delayed. A delayed unlock is cached whenever possible, which means the lock is saved in the module file status table (MFST) and processed as part of the next channel program that communicates with the device.

Entry Requirements

Register 5 (R5) must contain the address of the VFA buffer control area (BCA) only.

Return Conditions

Programming Considerations

Examples

The following example shows you how to unlock a VFA lock using this macro.

$ULKRC LOCK=VFA