Abstract: A single sign-on server associated with a single sign-on client authenticates a user of a device. Subsequent to the authenticating, the single sign-on client receives a request for an authentication token from a single sign-on enabled application operating on the device. The single sign-on client determines whether an application lock flag for the single sign-on enabled application is set. Responsive to the determining, the single sign-on client provides the authentication token to the single sign-on enabled application when the application lock flag is not set and withholds the authentication token from the single sign-on enabled application when the application lock flag is set.

Abstract: This invention relates to an arrangement for distributing interrupts within a multiprocessing system and for processing personal computer (PC) interrupts as well as multiprocessor interrupts in that system. New interrupts are diverted from processors that have recently processed an interrupt, thus preventing any one processor from being overloaded with an interrupt processing work load. Some of the processors are equipped to process PC interrupts and multiprocessing system interrupts. In each processor classes of interrupts may be masked out. A distributed arbitrator is used to allocate an interrupt among a plurality of processors available to process the interrupt.