Electronic data structure for controlling access to data objects using locks
Patent 7756813 Issued on July 13, 2010. Estimated Expiration Date: September 4, 2023. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
A data structure is provided for preventing access, in a computer system, to a data object having an identifier (ID). The data structure comprises a first lock object, in which the ID of the data object is stored, and in which a link to a storage location of the data object is assigned to the ID, and a second lock object, in which the ID of the data object is stored. In one embodiment, the ID is stored in the second lock object before storing the ID in the first lock object or before assigning the storage location of the data object to the ID in first lock object. Further, the ID is deleted from the second lock object after storing the ID in the first lock object or after assigning the storage location of the data object to the ID in the first lock object. The data object may be accessible by a software application, whereby the access of the software application to the data object is prevented if the ID is stored in the first or second lock object.
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September 4, 2023. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
