Access locking means for memory access management unit and access conflict management using such locking means

Abstract

Abstract Access-locking means for memory-access management unit, for access to objects stored in a storage unit of a computer, comprising at least one table of access locks which is associated with each of the objects in the storage unit. Each specific item of object-locking information advantageously comprises at least one sub-field relating lock-setting, and one sub-field for transaction stamping. The object locks are preferably accessed via masking tables on one or more levels. The management of a conflict of request for access to a same object uses this locking structure, and, on the basis of the management of the locks and of duplicate locks, proposes procedures for detecting a conflict of concurrent transactions, for queuing transactions, and for restarting or abandoning queued transactions. <IMAGE>

Inventors

• 👤 Pascal Faudemay
• 👤 Georges Gardarin
• 👤 Philippe Pucheral
• 👤 Jean-Marc Thevenin

Bibliographic Details