Patent ID: 6587893
Filing Date: 2003-07-01
Classification: G06F

Abstract:
A method for determining completion of all of one or more operations for a particular input/output device initiated prior to an inquiry start time, the method comprising:providing one or more in-progress bits, each in-progress bit corresponding to a respective associated one of said one or more operations for said input/output device; setting an in-progress bit when said associated one of said one or more operations is initiated; clearing the in-progress bit when said associated one or more operations is completed; providing one or more snapshot bits of equal number to said in-progress bits; copying, at said inquiry start time, all of the one or more in-progress bits to the corresponding one or more snapshot bits; clearing each of said one or more snapshot bits when said associated one or more operations is completed; and determining whether every one of said one or more snapshot bits is cleared.