Patent ID: 6393533
Filing Date: 2002-05-21
Classification: G06F,Y10S

Abstract:
A computing device for controlling access to memory comprising:a first process operable to execute on the computing device; a second process operable to execute on the computing device; a local memory shared by the first process and the second process, the local memory operable to receive a page of data from a database in response to an access request from the first process, the page including a counter location, the firsts process operable to determine that the page is accessible in response to the counter location, the first process operable to increment a value in the counter location upon write accessing the page in response to the page being accessible, the first process operable to compare an actual value in the counter location to an expected value upon completing the write access to the page, the first process operable to update the page if response to the actual value equaling the expected value.