GB2390713B - Concurrent file access - Google Patents

Concurrent file access

Info

Publication number
GB2390713B
GB2390713B GB0311372A GB0311372A GB2390713B GB 2390713 B GB2390713 B GB 2390713B GB 0311372 A GB0311372 A GB 0311372A GB 0311372 A GB0311372 A GB 0311372A GB 2390713 B GB2390713 B GB 2390713B
Authority
GB
United Kingdom
Prior art keywords
file
block
client application
editing
delivering
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
GB0311372A
Other versions
GB2390713A (en
GB0311372D0 (en
Inventor
Peter Ward
Mark Paul Norman
Joanne Clark
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHASSERAL Ltd
Original Assignee
CHASSERAL Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CHASSERAL Ltd filed Critical CHASSERAL Ltd
Publication of GB0311372D0 publication Critical patent/GB0311372D0/en
Publication of GB2390713A publication Critical patent/GB2390713A/en
Application granted granted Critical
Publication of GB2390713B publication Critical patent/GB2390713B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
    • H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
    • H04L69/322—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
    • H04L69/329—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions in the application layer [OSI layer 7]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/10—File systems; File servers
    • G06F16/17—Details of further file system functions
    • G06F16/176—Support for shared access to files; File sharing support
    • G06F16/1767—Concurrency control, e.g. optimistic or pessimistic approaches
    • G06F16/1774—Locking methods, e.g. locking methods for file systems allowing shared and concurrent access to files
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q10/00—Administration; Management
    • G06Q10/10—Office automation; Time management

Landscapes

  • Engineering & Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Data Mining & Analysis (AREA)
  • Physics & Mathematics (AREA)
  • Strategic Management (AREA)
  • Human Resources & Organizations (AREA)
  • Entrepreneurship & Innovation (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Operations Research (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Databases & Information Systems (AREA)
  • Economics (AREA)
  • Marketing (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Tourism & Hospitality (AREA)
  • General Business, Economics & Management (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
  • Stored Programmes (AREA)
  • Document Processing Apparatus (AREA)

Abstract

Shared file access may be achieved in a computer network using the following steps; storing the file in the form of a plurality of blocks, delivering the file to a first client application by delivering the block contents to the client application, monitoring user editing actions performed on the delivered file in the first client application, during editing of the delivered file, locking a stored block which corresponds to the portion of the file being edited to prevent other client applications editing the same block, and updating the locked block with edits performed by the first client application, after editing of the locked block is finished, delivering the updated block to other client applications.
GB0311372A 2000-10-18 2001-10-18 Concurrent file access Expired - Fee Related GB2390713B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US69470900A 2000-10-18 2000-10-18
PCT/GB2001/004653 WO2002033575A2 (en) 2000-10-18 2001-10-18 Concurrent file access

Publications (3)

Publication Number Publication Date
GB0311372D0 GB0311372D0 (en) 2003-06-25
GB2390713A GB2390713A (en) 2004-01-14
GB2390713B true GB2390713B (en) 2005-03-23

Family

ID=24789953

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0311372A Expired - Fee Related GB2390713B (en) 2000-10-18 2001-10-18 Concurrent file access

Country Status (3)

Country Link
AU (1) AU2001295748A1 (en)
GB (1) GB2390713B (en)
WO (1) WO2002033575A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7818663B2 (en) 2003-12-23 2010-10-19 Onedoc Limited Editable information management system and method

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7065249B2 (en) * 2002-07-25 2006-06-20 Microsoft Corp. System and method for image editing
US6928476B2 (en) * 2002-08-23 2005-08-09 Mirra, Inc. Peer to peer remote data storage and collaboration
WO2006084331A1 (en) * 2005-02-11 2006-08-17 Nsynergy Pty Ltd Communication system
CN100438416C (en) * 2005-12-02 2008-11-26 无锡永中科技有限公司 Method for realizing file coordination processing
JP4661574B2 (en) * 2005-12-14 2011-03-30 セイコーエプソン株式会社 Embedded device, electronic device, embedded device control method, control program, and recording medium
US7707299B2 (en) 2006-11-21 2010-04-27 International Business Machines Corporation Data package with recovery data
US7941399B2 (en) 2007-11-09 2011-05-10 Microsoft Corporation Collaborative authoring
US8825758B2 (en) 2007-12-14 2014-09-02 Microsoft Corporation Collaborative authoring modes
US8301588B2 (en) 2008-03-07 2012-10-30 Microsoft Corporation Data storage for file updates
US8352870B2 (en) 2008-04-28 2013-01-08 Microsoft Corporation Conflict resolution
US8346768B2 (en) 2009-04-30 2013-01-01 Microsoft Corporation Fast merge support for legacy documents
US8655847B2 (en) 2010-08-16 2014-02-18 Microsoft Corporation Mirroring data changes in a database system
CN105681367A (en) * 2014-11-17 2016-06-15 中国移动通信集团公司 Method, server and client for sharing file contents

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0348614A2 (en) * 1988-05-27 1990-01-03 International Business Machines Corporation Method for supporting a shared file system
US5999976A (en) * 1997-07-11 1999-12-07 International Business Machines Corporation Parallel file system and method with byte range API locking

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0348614A2 (en) * 1988-05-27 1990-01-03 International Business Machines Corporation Method for supporting a shared file system
US5999976A (en) * 1997-07-11 1999-12-07 International Business Machines Corporation Parallel file system and method with byte range API locking

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"Rich Text Format (RTF) Version 1.5 Specification" RESEARCH INFORMATION MANAGER BIBLIOSCAPE <url:http://www.biblioscape.com/rtf15_spec.htm> *
Conditional locking of nonroot index pages, IBM Technical Disclosure Bulletin, Vol. 32, No. 2B, August 1989, pages 57-58 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7818663B2 (en) 2003-12-23 2010-10-19 Onedoc Limited Editable information management system and method

Also Published As

Publication number Publication date
GB2390713A (en) 2004-01-14
WO2002033575A2 (en) 2002-04-25
WO2002033575A3 (en) 2003-10-16
AU2001295748A1 (en) 2002-04-29
GB0311372D0 (en) 2003-06-25

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20061018