Method and system for optimizing file table usage

Details Method and system for optimizing file table usage Method and system for optimizing file table usage

2011-04-26

2011-04-26

Nguyen, Van H (Department: 2196)

Electrical computers and digital processing systems: interprogra

Interprogram communication using message

Agent

C719S312000, C709S202000

Reexamination Certificate

active

07934220

ABSTRACT:
An operating system directed to using special properties of a common inter-process communications mechanism (IPC), namely UNIX domain socket-pairs or stream-pipes alternatively as a storage medium for file-descriptors of UNIX processes. When a file-descriptor is written into a socket-pair, and closed in the UNIX process, the file remains open, but occupies no space in the process' file-table. The file-descriptor may later be read out of the socket-pair to reestablish it in the file-table, and access it. This property is implemented in an IPC mechanism of UNIX operating system whereby a process such as a dispatcher may manage more connections and processes than its file-table size allow. This provides scalability improvements of the UNIX operating system.

REFERENCES:
patent: 4825354 (1989-04-01), Agrawal et al.
patent: 4984272 (1991-01-01), McLlroy et al.
patent: 5566326 (1996-10-01), Hirsch et al.
patent: 5572711 (1996-11-01), Hirsch et al.
patent: 5652885 (1997-07-01), Reed et al.
patent: 5721876 (1998-02-01), Yu
patent: 6044475 (2000-03-01), Chung et al.
patent: 6105148 (2000-08-01), Chung et al.
patent: 6108309 (2000-08-01), Cohoe et al.
patent: 6170045 (2001-01-01), Bobak
patent: 6192389 (2001-02-01), Ault
patent: 6493729 (2002-12-01), Gusler et al.
patent: 6567811 (2003-05-01), Edwards et al.
patent: 6604046 (2003-08-01), Van Watermulen et al.
patent: 6604123 (2003-08-01), Bruno et al.
patent: 6662268 (2003-12-01), McBrearty et al.
patent: 6718372 (2004-04-01), Bober
patent: 6802068 (2004-10-01), Guruprasad
patent: 6832236 (2004-12-01), Hamilton, II et al.
patent: 6931449 (2005-08-01), Schmidt et al.
patent: 6944860 (2005-09-01), Schmidt
patent: 6976258 (2005-12-01), Goyal et al.
patent: 7162719 (2007-01-01), Schmidt
patent: 7246167 (2007-07-01), Kalmuk et al.
patent: 7251816 (2007-07-01), Jones
patent: 7373647 (2008-05-01), Kalmuk et al.
patent: 7546612 (2009-06-01), Skinner et al.
patent: 2002/0199000 (2002-12-01), Banerjee
Linux System Calls, http://studies.ac.upc.es/ETSETB/ARISO2/'documentacion/ficheros man.pdf, Jun. 3, 1999.
Unix—Modelo Computactional—IPC, GOTOBUTTONBM—1—http://mega.ist.utl.pt/˜ic˜so/teoricas/10%20Unix%20pipes.pdf, Oct. 30, 2002.
Parenty, “The Incorporation of Multi-Level IPC into UNIX”, 1989 IEEE, pp. 94-99.

Affiliated with

Also associated with

Rating

Method and system for optimizing file table usage does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and system for optimizing file table usage, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and system for optimizing file table usage will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2669019