Efficiently searching and modifying a variable length queue
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United States of America Patent
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Jan 26, 2016
Grant Date -
Sep 18, 2014
app pub date -
Mar 12, 2013
filing date -
Mar 12, 2013
priority date (Note) -
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Abstract
A system for ensuring that serialization is maintained between separate transactions while searching and/or modifying a variable length queue is system includes a computer processor and logic executable by the computer processor. The logic is configured to implement a method. The method includes searching, by a processing device, a queue using a transaction. A first sequence number is retrieved from a queue header and a second sequence number is retrieved from local storage for the transaction. The first sequence number is compared with the second sequence number according to embodiments. The search of the queue is resumed using an address of a next element saved from a previous transaction responsive to the first sequence number matching the second sequence number. The search of the queue is restarted at a first element responsive to the first sequence number not matching the second sequence number.
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