Method and system for avoiding blocking in a data processing sys

Details Method and system for avoiding blocking in a data processing sys Method and system for avoiding blocking in a data processing sys

1995-02-06

1997-10-21

Black, Thomas G.

Multiplex communications

Wide area network

Packet switching

395609, 395490, 395800, 395858, 370235, G06F 1580, G06F 1730

Patent

active

056806086

ABSTRACT:
In a system having producer and consumer processes, a producing process look ahead in its outgoing data stream to ensure that there is data available to consumers on all outgoing streams. The producer looks ahead by keeping a data array in its memory space with an entry for each connected consumer. When the outgoing data stream becomes blocked, the producer searches the array for empty connections. Then, the producer scans the outgoing data stream for messages to send over the empty connections and sends such messages. Periodically, the producer checks the original connection to see if the blocking condition has ended.

REFERENCES:
patent: 4380063 (1983-04-01), Janson et al.
patent: 4875224 (1989-10-01), Simpson
patent: 5055999 (1991-10-01), Frank et al.
patent: 5243699 (1993-09-01), Nickolls et al.
patent: 5412784 (1995-05-01), Rechtschaffen et al.
patent: 5448735 (1995-09-01), Anderson et al.
patent: 5550982 (1996-08-01), Long et al.

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