Method and apparatus for the management of queue pointers by multiple processors in a digital communications network
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United States of America
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Feb 18, 2003
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app pub date -
Apr 7, 1995
filing date -
Apr 7, 1995
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Abstract
A method for managing a buffer queue that stores a data queue, wherein the data queue comprises a set of n data elements, n being at least zero. A head pointer is stored at a first location, which may be in a cache controlled by a first processor. The head pointer indicates a head buffer of the buffer queue. The first processor reads the head pointer to determine the head buffer of the buffer queue when a data element is to be removed from the data queue. The first processor reads a next pointer of the head buffer to determine whether the data queue is empty. The first processor determines that the data queue is empty when the next pointer has a first value, which indicates that the head buffer is a dummy buffer.
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