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WO2007066993A1 - Procede et dispositif de fourniture de logiciel par des unites fonctionnelles dans un systeme de logiciel en continu - Google Patents

Procede et dispositif de fourniture de logiciel par des unites fonctionnelles dans un systeme de logiciel en continu Download PDF

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Publication number
WO2007066993A1
WO2007066993A1 PCT/KR2006/005295 KR2006005295W WO2007066993A1 WO 2007066993 A1 WO2007066993 A1 WO 2007066993A1 KR 2006005295 W KR2006005295 W KR 2006005295W WO 2007066993 A1 WO2007066993 A1 WO 2007066993A1
Authority
WO
WIPO (PCT)
Prior art keywords
streaming
functional unit
execution
function
streamed
Prior art date
Application number
PCT/KR2006/005295
Other languages
English (en)
Inventor
Won-Young Kim
Wan Choi
Jeong-Min Shim
Original Assignee
Electronics And Telecommunications Research Institute
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 Electronics And Telecommunications Research Institute filed Critical Electronics And Telecommunications Research Institute
Priority to US12/088,073 priority Critical patent/US20080256178A1/en
Priority claimed from KR1020060123734A external-priority patent/KR100798928B1/ko
Publication of WO2007066993A1 publication Critical patent/WO2007066993A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/34—Network arrangements or protocols for supporting network services or applications involving the movement of software or configuration parameters 
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/60—Network streaming of media packets
    • H04L65/61—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio
    • H04L65/612—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio for unicast

Definitions

  • the present invention relates to a software streaming service and, more particularly, to a method and apparatus for providing software by function units in order to stream execution pages required for performing predetermined functions of software at once in a software streaming system.
  • a software streaming service is a service technology to execute a software
  • FIG. 1 is a block diagram illustrating a procedure for transmitting and receiving control data and streaming data related to application software execution between a streaming server and a client for providing a software streaming service according to the related art.
  • a streaming client 110 and a streaming server 120 are identical to a streaming client 110 and a streaming server 120 .
  • a communication network such as the Internet for the software streaming service.
  • the streaming client 110 is installed at a user terminal for receiving a streaming service.
  • the streaming client 110 transmits a request of an execution code for executing application software to the streaming server 120.
  • the streaming server 120 receives the request for executing application software from the streaming client 110. Then, the streaming server 120 finds the requested execution code from entire execution code 130 of application software, that is, predetermined execution pages, according to the received request, and transmits the found execution code to the client 110 through the Internet.
  • the streaming client 110 receives execution pages of the application software from the streaming server 120 and performs the received execution pages, thereby using application software not installed in the streaming client 110 like as application software installed in the streaming client 110.
  • execution page units it requires the streaming client to repeatedly request a related streaming service and receive execution pages as many as the number of execution pages necessary for performing a corresponding function in order to perform the pre- determined function of application software.
  • the streaming client 110 repeatedly requests a related streaming service to the streaming server 120 and receives execution pages five times to perform the printing function.
  • the execution of requested function may be delayed due to the repeated requests and receiving processes as many as the number of information required for performing the predetermined function.
  • An aspect of the present invention is to provide a method and apparatus for
  • the invention provides a method for
  • a software streaming system including a streaming client and a streaming server, including: at the streaming client, creating a functional unit identification for identifying a function requested from a user by intercepting a request of a predetermined function in application software from a user; determining whether a functional unit corresponding to the created functional unit identification is streamed or not; determining whether each of execution pages of the functional unit is streamed or not when the functional unit is not streamed; composing a streaming list with execution pages that are not streamed based on the determination result; requesting a streaming service by transmitting the composed streaming list to the streaming server; and receiving execution pages transmitted from the streaming server and storing the received execution pages.
  • the invention provides an apparatus for providing software by functional units in a software streaming system including: a function recognition library for creating a functional unit identification to identify a function requested from a user by intercepting a request of a function in application software from a user; a streaming controller for requesting streaming of a functional unit corresponding to the created functional unit identification from the function recognition library and for receiving execution pages included in a functional unit transmitted from the streaming server; and a local cache for storing the streamed execution pages.
  • a streaming controller is independently embodied separately from a streaming file system filter.
  • Such a structure allows easy porting of client engine, and various services can be provided by providing various streaming policies from a streaming controller that is a typical process, not an operation system. Since the execution pages are provided by function units, corresponding application software can be limitedly used based on the streamed functional unit although a related network is malfunctioned while using a streaming service. Moreover, by providing software by function units, it is possible to charge a service fee for a streaming service by function units.
  • FIG. 1 is a block diagram illustrating a software streaming service system according to the related art
  • FIG. 2 is a block diagram illustrating a streaming client according to an
  • FIG. 3 is a diagram for describing the configuration of functional unit according to an embodiment of the present invention.
  • FIG. 4 is a flowchart illustrating the operation of a streaming client according to an embodiment of the present invention.
  • FIG. 5 is a flowchart illustrating the operation of a streaming file system filter
  • FIG. 2 is a block diagram illustrating a streaming client according to an
  • the streaming client 200 includes a function recognition library 220, a streaming controller 240, a local cache 270, and a streaming file system filter (SFSF) 250.
  • the function recognition library 220 intercepts are a request of a predetermined function from a user for streamed application software 210, creates a functional unit identification corresponding to the requested function, and requests a related streaming service to the streaming controller 240.
  • the streaming controller 240 manages the states of streaming by function units, and determines whether a streaming service of a function unit requested from the function recognition library 220 is provided or not. If not, the streaming controller 240 determines whether execution pages included in the corresponding functional unit are not streamed or not.
  • the streaming controller 240 composes a streaming list with execution pages not previously streamed, and receives the execution pages of the streaming list from the streaming server 100 at once.
  • the local cache 270 stores execution pages streamed by the streaming controller 240.
  • the streaming file system filter (SFSF) 250 processes a file calculation or a page fault generated while executing the streamed application software 210.
  • the functional unit denotes a set of execution pages required for performing any function of application software.
  • the functional units are managed by the functional unit identification that is a unique identification of a functional unit. It assumes that a list of execution pages included in a predetermined functional unit is previously defined.
  • the function recognition library always generates the same function unit identification of the same function unit.
  • the application software 210 is typical application software linked to the function recognition library. By replacing or adding the library of the application software 210 to have a function of generating a functional unit identification, a function requested by a user can be recognized and a streaming service can be provided by function units without modifying application program.
  • the streaming controller 240 includes a cache manager 260 for managing the local cache 270 and stores the streamed execution pages into the local cache 270 through the cache manager 260.
  • the streaming controller 240 also confirms or reads the execution pages stored in the local cache 270 and provides the read execution pages to the ap- plication software 210 through the cache manger 260.
  • the SFSF 250 determines whether a page with a fault is stored in the local cache 270 or not when a page fault is generated from a predetermined page while a predetermined function is performing. If the page with fault is not stored in the local cache 270, the SFSF 250 requests the streaming service of a corresponding execution page to the streaming controller 240 and returns the corresponding execution page received as a result thereof to the operating system 280.
  • the streaming controller 240 receives a request of a predetermined execution page from the SFSF 250, the streaming controller 240 determines whether the requested execution page is included in the current streaming list or not. If it is in the current streaming list, the streaming controller 240 provides an execution page to the SFSF 250 after completely streaming the streaming list. If not, the streaming controller 240 requests a corresponding execution page to the streaming server 100 and provides the execution page received from the streaming server 100 to the SFSF 250.
  • the streaming client 240 can receive execution pages to
  • the streaming client 200 sets and manages the functional unit that is a set of execution pages required by functions performed in application software.
  • Fig. 3 is a diagram for describing a function unit according to an embodiment of the present invention.
  • a functional unit for performing the printing function in the application software is formed of the execution files p2 and p3 in the first file 1, the execution file ql of the second file 2, and the execution files r2 and r5 of the third file 3.
  • Such a functional unit is identified by a unique identification.
  • the streaming controller 240 in the streaming client 200 requests the
  • streaming service for the execution pages p2, p3, ql, r2, and r5 of the functional unit corresponding to the functional unit identification at one time and receives the requested execution pages at once.
  • the same execution pages per each function may overlap. That is, previously streamed execution pages for performing different function may be included in a currently requested functional unit.
  • the streaming controller 240 checks each of execution pages in a functional unit whether it is previously streamed or not, composes a streaming list with execution pages not previously streamed, and transmits the composed streaming list to the streaming server 100, thereby receiving the streaming service of the execution pages.
  • the streaming controller 240 performs asynchronous file input/output and synchronous transmission with a server while being operated with at least one of threads or processes, thereby preventing the performance from being degraded due to direct network delay or I/O delay.
  • FIG. 4 is a flowchart illustrating a method for providing software by function units in a streaming client 200 according to an embodiment of the present invention. With reference to Fig. 4, the method for providing software by functional units will be described.
  • the function recognition library 220 of the application software requests the streaming service of a functional unit corresponding to the selected function to the streaming controller 240. That is, the function recognition library 220 creates a functional unit identification for the requested function and transmits the created identification, thereby requesting the streaming request of the functional unit.
  • the function recognition library 220 requests the streaming service for the functional unit at steps S410 and S411. Then, the streaming controller 240 determines whether a streaming service of a corresponding functional unit is provided or not by confirming a functional unit corresponding to the functional unit identification at step S412. In order to determine, the streaming controller 240 manages the streaming state value of a corresponding function unit as a streaming completion state after providing the streaming service of a predetermined functional unit. At the step S412, the streaming controller 240 confirms whether the streaming state value of the functional unit is the streaming completion state value or not.
  • the streaming controller 240 waits for the next request because additional streaming request is not necessary.
  • step S412 if the requested functional unit is not in the streaming completion state, it determines whether execution pages of the requested function unit are streamed and stored in the local cache 270 or not at step S413.
  • the streaming state value of the corresponding function unit changes to the streaming completion state at step S417 because additional streaming for execution pages is not necessary. Then, it waits for the next request.
  • a streaming list is composed by registering execution pages not stored in the local cache 270 at step S414. Then, the streaming service is requested to the streaming server 100 at once by transmitting the composed streaming list, and the requested execution pages are received through the streaming service at once at step S415.
  • the streaming request from the streaming client 200 to the streaming server 100 is performed at once, the streaming server 100 may asynchronously transmit the requested execution pages to the streaming client 200.
  • the streaming controller 240 stores execution pages asynchronously received from the streaming server 100 according to the request in the local cache 270, and the execution pages stored in the local cache 270 are deleted from the streaming list at step S416.
  • streaming state value of the corresponding function unit changes to the streaming completion state, and it waits for the next request at step S417.
  • the execution pages of the corresponding functional unit stored in the local cache 270 are provided to the application software 210 by the SFSF 250.
  • a page fault may be generated for a predetermined execution page.
  • the SFSF 250 performs a necessary operation to process the page fault. The operation of the SFSF 250 will be described with reference to Fig. 5, hereinafter.
  • the SFSF 250 confirms whether a corresponding execution page is present in the local cache 270 or not at step S512.
  • the SFSF 250 requests the streaming controller 250 to stream a corresponding page, receives the pages streamed from the streaming controller 240 at step S516, and returns the received execution page to the operation system 280 at step S518.
  • the step S418 is performed to confirm whether the requested execution page is in the previous streaming list or not because it is not the request of the application software 210 at the step S411.
  • the streaming controller 240 requests the streaming service for a corresponding execution page to the streaming server 100 at step S421. Then, the streaming controller 240 receives the corresponding execution page streamed from the streaming server 100, transfers the received execution page to the SFSF 250, and stores it in the local cache 270 at steps S422 and S423.
  • the method and apparatus for providing software by function units according to the certain embodiments of the present invention can be applied to a software streaming service field and can stream execution pages required for performing a predetermined function of software at once in a software streaming system.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Information Transfer Between Computers (AREA)

Abstract

Procédé et dispositif de fourniture de logiciel par des unités fonctionnelles. Selon le procédé, au niveau du client en continu, une identification d'unité fonctionnelle est créée pour l'identification d'une fonction demandée par un utilisateur, à travers une interception de demande de fonction préétablie dans un logiciel d'application émanant d'un utilisateur ; ensuite, il est déterminé si une unité fonctionnelle correspondant à l'identification ainsi créée est en continu ou non, et si chacune des pages d'exécution de l'unité fonctionnelle est en continu ou non lorsque l'unité fonctionnelle n'est pas en continu ; après une telle détermination, une liste de mode en continu est dressée avec les pages d'exécution qui ne sont pas en continu, sur la base du résultat de la détermination ; enfin, un service en continu est demandé par transmission de la liste dressée, au serveur en continu, et les pages d'exécution transmises depuis ce serveur sont reçues et enregistrées.
PCT/KR2006/005295 2005-12-08 2006-12-07 Procede et dispositif de fourniture de logiciel par des unites fonctionnelles dans un systeme de logiciel en continu WO2007066993A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US12/088,073 US20080256178A1 (en) 2005-12-08 2006-12-07 Method and Apparatus for Providing Software by Functional Units in a Software Streaming System

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2005-0120156 2005-12-08
KR20050120156 2005-12-08
KR1020060123734A KR100798928B1 (ko) 2005-12-08 2006-12-07 소프트웨어 스트리밍 시스템에서 기능 단위 소프트웨어제공 방법 및 장치
KR10-2006-0123734 2006-12-07

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Publication Number Publication Date
WO2007066993A1 true WO2007066993A1 (fr) 2007-06-14

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010037399A1 (en) * 1998-07-22 2001-11-01 Dan Eylon Method and system for streaming software applications to a client
US20010044850A1 (en) * 1998-07-22 2001-11-22 Uri Raz Method and apparatus for determining the order of streaming modules
US20020091763A1 (en) * 2000-11-06 2002-07-11 Shah Lacky Vasant Client-side performance optimization system for streamed applications
US20050066063A1 (en) * 2003-08-01 2005-03-24 Microsoft Corporation Sparse caching for streaming media

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010037399A1 (en) * 1998-07-22 2001-11-01 Dan Eylon Method and system for streaming software applications to a client
US20010044850A1 (en) * 1998-07-22 2001-11-22 Uri Raz Method and apparatus for determining the order of streaming modules
US20020091763A1 (en) * 2000-11-06 2002-07-11 Shah Lacky Vasant Client-side performance optimization system for streamed applications
US20050066063A1 (en) * 2003-08-01 2005-03-24 Microsoft Corporation Sparse caching for streaming media

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