Method and system for locking resources in a computer system

Details Method and system for locking resources in a computer system Method and system for locking resources in a computer system

1997-10-31

2000-08-22

Kulik, Paul V.

Data processing: database and file management or data structures

Database design

Data structure types

710200, G06F 1200

Patent

active

061086541

ABSTRACT:
Methods and systems are provided for providing locking in a system. The resource objects of the system can be persistent, and thus provide finer granularity locking by allowing shared resource objects to be dynamically allocated and de-allocated. The persistent nature of the resource objects allows for the dynamic allocation and de-allocation of the resource objects, while guarding against the abnormal release of resource locks that result in the possibility of inconsistent data. If abnormal release occurs, the affected resource object(s) are marked to indicate that they are in a "dubious" state. The dubious resource objects are not dynamically de-allocated, but are instead allowed to persist until corrective or validation actions are taken. If the locks are validly released, then the resource objects can be safely de-allocated. In this manner, fine granularity locks can be created to cover minute portions of the shared system resources for some duration, without excessively incurring system overhead and memory.

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