Data processing system and method for providing notification in

Details Data processing system and method for providing notification in Data processing system and method for providing notification in

1992-03-30

1995-02-14

Chan, Eddie P.

Boots, shoes, and leggings

364DIG2, 364940, 3649425, 3649467, 364284, 3642646, G06F 1300, G06F 946

Patent

active

053903285

ABSTRACT:
Two or more user applications executing on one or more processors, each controlled by an operating system, share use of a list structure within a Structured External Storage (SES) facility to which each processor is connected. One of the applications registers interest in particular state transitions affecting one or more lists within the list structure, causing a process within the SES to notify the appropriate processor when a list operation causes the particular state transition, without interrupting processing on the processor. The application receives notice of the state transition by periodically polling a vector within the processor, or by receiving control when a test by the operating system of a summary indicator for the vector causes an application exit to be driven.

REFERENCES:
patent: 4399504 (1983-08-01), Obermarck et al.
patent: 4543626 (1985-09-01), Bean et al.
patent: 4851988 (1989-07-01), Trottier et al.
patent: 5008853 (1991-04-01), Bly et al.

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