JP2010049341A - Input/output terminal switching system, input/output terminal switching method, terminal, and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To continuously use an in-terminal window in use or an I/O resource such as voice data by different terminals without transferring a whole environment including an I/O function. <P>SOLUTION: A terminal 1 stores resource information such as an I/O resource identifier or the size of a graphical user interface (GUI) window and session information in a database 5. When any trigger of terminal switching is generated, a resource information collection function 4 acquires data whose additional acquisition is required for switching from an I/O function 8, and transfers the whole data to a terminal 2. A resource reproduction function 13 of the terminal 2 sets and reproduces the resource information and session information to an I/O function 15 based on the received I/O resource relevant information. The terminal 2 rewrites the resource ID or a parameter unique to the session between such two systems as an old transition origin and a new transition destination by referring to the resource information and session information. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a service terminal switching method for continuously using a service used by a user on another terminal, and in particular, an input / output terminal switching system for switching a terminal that executes an I / O (input / output) function, and input / output The present invention relates to a terminal switching method, a terminal, and a program.

  Conventionally, JAVA (registered trademark), VMware (registered trademark), etc. are used for both terminals as techniques for continuously using I / O resources such as in-terminal windows and audio data on different terminals. A technology for transferring the I / O function itself with the platform is known.

  As a related technology, there is a technique for continuously using a communication service with other devices, and a technique is proposed in which any communication service including existing clients and servers can be changed without adding a function to the network side. .

  As another related technique, a technique has been proposed in which applications developed on different GUIs (Graphical User Interfaces) are simultaneously displayed on the same display screen (for example, see Patent Document 1).

As a system for graphically displaying a user's keyboard or mouse input on a display, an X Windows (registered trademark) system used in a UNIX (registered trademark) OS (Operating System), Windows, or the like is used. There is a GDI (Graphic Device Interface) -based GUI used in the (registered trademark) OS.
Japanese Patent Laid-Open No. 05-11958

  However, in the related technology described above, when a platform such as JAVA (registered trademark) or VMware is installed, a large-scale implementation is required to transfer the entire environment including the I / O function. Further, when the I / O function itself is not transferred, it is necessary to save the ID (identifier) of the I / O resource before and after the transfer, but the ID may be batted between the transition source and the transition destination. There is a problem that it can not be realized because of the nature.

  In particular, in the other related technology (Patent Document 1) described above, the I / O function itself that collectively processes the GUI display in the OS needs to be modified. Also, the same intra-terminal processing is assumed in the first place, and there is no mention of adjustment of I / O resource ID between terminals.

  The present invention has been made in view of such circumstances, and its purpose is to transfer I / O resources such as in-terminal windows and voice data to the entire environment including I / O functions. It is an object to provide an input / output terminal switching system, an input / output terminal switching method, a terminal, and a program that can be used continuously in different terminals.

  In order to solve the above-described problem, the present invention continuously uses an I / O resource being used in one terminal between the first terminal and the second terminal in the other terminal. In the input / output terminal switching system, the first terminal and the second terminal each have an I / O function for executing I / O through a direct interface with an I / O resource, and the I / O When there is a trigger for terminal switching at one terminal and resource information collecting means for collecting I / O resource related information for I / O executed by the function, the I / O resource related information is sent to the other terminal Identification information related to the I / O resource described in the I / O processing request by relaying the I / O processing request by transferring the transferring unit, the resource reproducing unit reproducing according to the contents of the acquired I / O resource related information Input / output transition Comprise those old and the ID conversion means for rewriting between new one dual transition destination is an input-output terminal switching system according to claim.

  According to the present invention, in the above invention, the inter-terminal routing setting means for setting bidirectional routing between the first terminal and the second terminal, and the routing set by the inter-terminal routing setting means. A process utilization unit that uses a process that is a program subject to be executed on the transition source terminal from the input / output transition destination terminal, of the first terminal and the second terminal. Features.

  According to the present invention, in the above invention, the internal routing setting means for setting routing inside the first terminal and the second terminal, and the routing set by the internal routing setting means, Of the first terminal and the second terminal, there is provided a process using means for using a process that is a main program executed in the terminal of the input / output transition destination.

  According to the present invention, in the above invention, the inter-terminal routing setting means for setting bidirectional routing between the first terminal and the second terminal, and the routing set by the inter-terminal routing setting means. And a process utilization means for utilizing a process that is a program subject executed by the transition destination terminal from the input / output transition source terminal of the first terminal and the second terminal. Features.

  The present invention is characterized in that, in the above-mentioned invention, the resource information collection means acquires data that needs to be additionally acquired for terminal switching by directly connecting to the I / O function.

  The present invention is characterized in that, in the above-mentioned invention, the resource information collection means relays the I / O processing request, extracts the I / O resource related information, and creates a database.

  Further, in order to solve the above-described problem, the present invention is a terminal that allows an I / O resource being used to be continuously used by a transition-destination terminal, and is an I / O resource through a direct interface with the I / O resource. When there is an I / O function for executing O, resource information collecting means for collecting I / O resource related information for I / O executed by the I / O function, and a terminal switching trigger, A transfer means for transferring / O resource related information to the other terminal.

  In order to solve the above-described problem, the present invention is a terminal that continuously uses an I / O resource that is being used in a transition source terminal, and that is obtained from the transition source terminal. Resource reproduction means that reproduces according to the contents of related information, I / O processing requests are relayed, and identification information related to I / O resources described in the I / O processing requests is changed from the old one before the input / output transition It is a terminal characterized by comprising ID conversion means for rewriting between the two systems of the previous new one.

  In order to solve the above-described problem, the present invention provides an input / output terminal switching method in which an I / O resource being used in a transition source terminal is continuously used in a transition destination terminal. Collecting I / O resource related information at the terminal of the terminal, and when there is a terminal switching trigger at the transition source terminal, transferring the I / O resource related information to the transition destination terminal; and The step of reproducing the I / O resource according to the content of the I / O resource related information at the terminal, the I / O processing request relayed at the input / output transition destination terminal, and described in the I / O processing request A step of rewriting identification information related to I / O resources between two systems, an old one before input / output transition and a new one at the transition destination, and identification information regarding the converted I / O resource at the transition destination terminal On the basis of the, An input-output terminal switching method characterized in that through direct interface with the serial I / O resources and a step of performing the execution of I / O.

  In order to solve the above-described problem, the present invention makes a transition to a computer that controls each terminal when the I / O resource being used by the transition source terminal is continuously used by the transition destination terminal. A step of collecting I / O resource related information at an original terminal, a step of transferring the I / O resource related information to a transition destination terminal when there is a terminal switching trigger at the transition source terminal, and the transition destination The terminal reproduces the I / O resource according to the contents of the I / O resource related information, relays the I / O processing request at the input / output transition destination terminal, and is described in the I / O processing request. Rewriting identification information related to the I / O resource between the old system before the input / output transition and the new system at the transition destination, and identification regarding the converted I / O resource at the transition destination terminal Based on information There are a program characterized by and a step of the execution of the I / O through the direct interface with the I / O resources.

  According to the present invention, when a transition source terminal collects I / O resource related information and there is a trigger for terminal switching, the collected I / O resource related information is transferred to the transition destination terminal, and the transition destination terminal The I / O resource is reproduced according to the contents of the I / O resource related information, the I / O processing request is relayed, and the ID related to the I / O resource described in the I / O processing request is input / output transitioned. I / O is executed through a direct interface with the I / O resource based on the ID related to the rewritten I / O resource between the old system and the new system of the transition destination. Therefore, the in-terminal window and the I / O resources such as audio data that are being used can be continuously used in different terminals without transferring the entire environment including the I / O function.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

A. First Embodiment FIG. 1 is a block diagram showing a configuration of an input / output terminal switching system according to a first embodiment of the present invention. In FIG. 1, a terminal 1 (A) and a terminal 2 (B) are terminals provided with some I / O devices such as a display, a speaker, a button, a keyboard, and a mouse. The terminal 1 and the terminal 2 are respectively provided with relay functions 17 and 18 including ID conversion functions 3 and 10, resource information collection functions 4 and 11, databases 5 and 12, resource reproduction functions 6 and 13, and inter-terminal communication functions 7 and 14. And I / O functions 8 and 15 and I / O resources 9 and 16. Between each functional block, a program command, data, and the like are exchanged by data communication or the like. Note that these function sets are the same for the terminal 1 and the terminal 2 in order to realize input / output terminal switching in both directions. Therefore, when switching in one direction, as will be described later in the explanation of the operation, some of these functions are not executed in one terminal.

Next, the operation of the input / output terminal switching system according to the first embodiment will be described.
FIG. 2 is a sequence diagram for explaining the operation of the input / output terminal switching system according to the first embodiment. In the first embodiment, the user uses a service using the I / O function 8 such as the display and keyboard of the terminal 1, and suddenly switches to the I / O function 15 of the terminal 2 to continue the service. Assuming that

  In the terminal 1, the resource information collection function 4 in the relay function 17 relays the request for I / O processing and saves its history, so that the resource information such as the I / O resource identifier, the size of the GUI window, etc. Then, two large groups of information such as session information for identifying connection to the I / O function 8 are extracted and stored in the database 5 (step Sa1).

  Here, if there is any terminal switching trigger (user designation or the like) (step Sa2), the resource information collection function 4 sends the latest image data or the like that needs to be additionally acquired for switching to the I / O function 8. Obtained by direct access (step Sa3). Further, after adding the additional data to the database 5, all the data is set as I / O resource related information, and the relay function 18 of the terminal 2 is passed through the inter-terminal communication functions 7 and 14 of the respective terminals 1 and 2. Are registered in the database 12 (step Sa4). The resource reproduction function 13 of the terminal 2 constructs a new session with the I / O function 15 and sends resource information and session information to the I / O function 15 based on the received I / O resource related information. Set (step Sa5).

  Here, in the terminal 2, when the ID conversion function 10 receives a notification of completion of switching (step Sa6), the resource information and the session information in the database 12 are referred to, and thereafter all the information that passes through the ID conversion function 10 is referred to. The process of rewriting the resource ID described in the I / O processing request and the session-specific parameter between the two systems of the old transition source and the new transition destination is started (step Sa7). That is, as shown in FIG. 1, conversion is performed between a set of old resource ID: old parameter = AA: aa and a set of new resource ID: new parameter = BB: bb.

  In this way, the user can switch to the I / O function 15 of the terminal 2 and continue the service. In addition, when it is desired to return to the I / O function 8 of the terminal 1 again and continue the service, the same is applied with the contents of “terminal 1” and “terminal 2” interchanged in the above description (numeric notations in the figure are different). May be performed.

B. Second Embodiment Next, a second embodiment of the present invention will be described.
FIG. 3 is a block diagram showing the configuration of the input / output terminal switching system according to the second embodiment. The second embodiment is based on the configuration shown in FIG. 1 and is a system configuration when the service process used by the user does not change. In FIG. 3, a terminal 51 (A) and a terminal 52 (B) are terminals each provided with some I / O devices among a display, a speaker, a button, a keyboard, a mouse, and the like. The terminal 51 and the terminal 52 are respectively provided with relay functions 53 and 54 including ID conversion functions 55 and 62, resource information collection functions 56 and 63, databases 57 and 64, resource reproduction functions 58 and 65, and inter-terminal communication functions 59 and 66, respectively. And process 69, I / O functions 60 and 67, and I / O resources 61 and 68. Between each functional block, a program command, data, and the like are exchanged by data communication or the like. Note that these function sets are the same in the terminal 51 and the terminal 52 in order to realize bidirectional input / output terminal switching. Therefore, at the time of one-way switching, some of these functions are not executed in one terminal, as will be described later.

  In the second embodiment, the user uses the service application process 69 using the I / O function 60 such as the display and keyboard of the terminal 51, and suddenly switches to the I / O function 67 of the terminal 52 for service. It is assumed that it is necessary to continue. In this case, the processing performance of the terminal 51 is sufficient, so that the connection destination of the process does not directly become the I / O functions 60 and 67 in the terminals 51 and 52 without switching the execution terminal of the process 69. Relay functions 53 and 54 for relaying are installed.

Next, the operation of the input / output terminal switching system according to the second embodiment will be described.
FIG. 4 is a sequence diagram for explaining the operation of the input / output terminal switching system according to the second embodiment. In the terminal 51, the resource information collection function 56 in the relay function 53 relays the request for I / O processing and saves the history, so that the resource information such as the I / O resource identifier, the size of the GUI window, etc. Then, two large information groups such as session information for identifying the connection to the I / O function 60 are extracted and stored in the database 57 (step Sb1).

  When the process 69 is stopped and a terminal switching trigger is applied (step Sb2), the resource information collection function 56 of the terminal 51 acquires the latest image data and the like that need to be additionally acquired for switching. The function 60 is directly accessed and acquired (step Sb3). Further, after adding the additional data to the database 57, all the data is set as I / O resource related information, and the relay function 54 of the terminal 52 is passed through the inter-terminal communication functions 59 and 66 of the respective terminals 51 and 52. Are transferred to the resource information collection function 63 and registered in the database 64 (step Sb4). The resource reproduction function 65 of the terminal 52 constructs a new session with the I / O function 67 and sends resource information and session information to the I / O function 67 based on the received I / O resource related information. Set (step Sb5).

  Here, since the inter-terminal communication function 66 in the terminal 52 is connected to the process 69 in the terminal 51, it communicates with the inter-terminal communication function 59 in the terminal 51, and all subsequent I / O processing requests are: It goes through one or both of the inter-terminal communication function 59 and the inter-terminal communication function 66. When the I / O processing request is received, the inter-terminal communication functions 59 and 66 refer to the session information in the databases 57 and 64 in the respective terminals and correspond to a session for which input / output terminal switching is to be performed. Are set so as to be bidirectionally routable through the route of the I / O function 67-terminal communication function 66-terminal communication function 59-process 69 (step Sb6).

  Here, the process 69 is restarted at the terminal 51 (step Sb7), and when the ID conversion function 62 detects the completion of the routing setting, the terminal 52 refers to the resource information and session information in the database 64 and thereafter. Start processing to rewrite the resource IDs and session-specific parameters described in all I / O processing requests via the ID conversion function 62 between the old transition source and the new transition destination. (Step Sb8). That is, as shown in FIG. 3, conversion is performed between a set of old resource ID: old parameter = AA: aa and a set of new resource ID: new parameter = BB: bb.

  In this way, the user connects through the path of the I / O function 67-terminal communication function 66-terminal communication function 59-process 69, and switches to the I / O function 67 of the terminal 52 to continue the service. (Step Sb9). In addition, when it is desired to return to the I / O function 60 of the terminal 51 again and continue the service, the same is applied with the contents of replacing the “terminal 51” and “terminal 52” in the above description (numeric notation in the figure is different). May be performed.

C. Third Embodiment Next, a third embodiment of the present invention will be described.
FIG. 5 is a block diagram showing the configuration of the input / output terminal switching system according to the third embodiment. The third embodiment is based on the configuration shown in FIG. 1 and is a system configuration in the case of transitioning a service process used by a user. In FIG. 5, a terminal 101 (A) and a terminal 102 (B) are terminals including some I / O devices such as a display, a speaker, a button, a keyboard, and a mouse. The terminal 101 (A) and the terminal 102 (B) have ID conversion functions 105 and 112, resource information collection functions 106 and 113, databases 107 and 114, resource reproduction functions 108 and 115, and inter-terminal communication functions 109 and 116, respectively. And 119, 120, service HO functions 121, 122, I / O functions 110, 117, and I / O resources 111, 118. Between each functional block, a program command, data, and the like are exchanged by data communication or the like. Note that these function sets are the same in the terminal 101 and the terminal 102 in order to realize bidirectional input / output terminal switching. Therefore, at the time of one-way switching, some of these functions are not executed in one terminal, as will be described later.

  In the third embodiment, the user uses the service application process 119 using the I / O function 110 such as the display and keyboard of the terminal 101, and suddenly switches to the I / O function 117 of the terminal 102 for service. Since the processing performance of the terminal 101 is insufficient, it is assumed that the execution terminal of the process 119 is switched. In this case, relay functions 103 and 104 for relaying as a proxy are installed in the terminals 101 and 102 so that the connection destination of the process does not directly become the I / O functions 110 and 117.

Next, the operation of the input / output terminal switching system according to the third embodiment will be described.
FIG. 6 is a sequence diagram for explaining the operation of the input / output terminal switching system according to the third embodiment. In the terminal 101, the resource information collection function 106 in the relay function 103 relays the request for I / O processing and saves its history, so that the resource information such as the I / O resource identifier, the size of the GUI window, etc. Then, two large information groups such as session information for identifying connection to the I / O function 110 are extracted and stored in the database 107 (step Sc1).

  Here, when the process 119 is stopped and a terminal switching trigger is applied (step Sc2), the resource information collection function 106 of the terminal 101 transmits the latest image data and the like that need to be additionally acquired for switching to the I / O function. 110 is directly accessed and acquired (step Sc3). Further, after adding the additional data to the database 107, all the data is set as I / O resource related information, and the relay function 104 of the terminal 102 is passed through the inter-terminal communication functions 109 and 116 of the respective terminals 101 and 102. Are transferred to the resource information collection function 113 and registered in the database 114 (step Sc4). The resource reproduction function 115 of the terminal 102 constructs a new session with the I / O function 117 and sends resource information and session information to the I / O function 117 based on the received I / O resource related information. Set (step Sc5).

  Here, the process 119 being executed (the process 120 at the transition destination) cooperates with the service HO functions 121 and 122 to make a process transition from the terminal 101 to the terminal 102 (step Sc6). The technology applied to the service handover is not limited to any technology such as JAVA (registered trademark) or VMware process migration in addition to the technology defined in the related technology.

  Here, since the inter-terminal communication function 116 in the terminal 102 does not need to be connected to an external process by the service HO, routing setting in the terminal is performed (step Sc7). That is, when the terminal-to-terminal communication function 116 receives an I / O processing request, the session information in the database 114 is referred to, and if the I / O function 117- The terminal-to-terminal communication function 116 is set so that it can be routed bidirectionally by the route of the process 120.

  Here, the process 120 is restarted (step Sc8), and when the ID conversion function 112 detects the completion of the routing setting, the resource information and session information in the database 114 are referred to, and thereafter, the ID conversion function 112 is passed through. Processing for rewriting the resource IDs and session-specific parameters described in all the I / O processing requests to be performed between the two systems of the old transition source and the new transition destination is started (step Sc9). That is, as shown in FIG. 5, conversion is performed between a set of old resource ID: old parameter = AA: aa and a set of new resource ID: new parameter = BB: bb.

  In this way, the user can connect through the path of the I / O function 117-terminal communication function 116-process 120, and can continue the service by switching to the I / O function 117 of the terminal 102 (step Sc10). . If it is desired to return to the I / O function 110 of the terminal 101 and continue the service again, the same is true with the contents of “terminal 101” and “terminal 102” in the above description being replaced (numeric notations in the figure are different). Perform the process.

D. Fourth Embodiment Next, a fourth embodiment of the present invention will be described.
In the fourth embodiment, a case will be described in which a process of a service used by a user is transitioned but input / output is not switched. The input / output terminal switching system according to the fourth embodiment is the same as that shown in FIG. In the fourth embodiment, the user uses the process 119 of the service application using the I / O function 110 such as the display and keyboard of the terminal A101, and the execution terminal of the process 119 is suddenly insufficient because the processing performance is insufficient. On the other hand, it is assumed that the service is continued with the terminal A101 being input / output. In this case, relay functions 103 and 104 for relaying as a proxy are installed in the terminals 101 and 102 so that the connection destination of the process does not directly become the I / O functions 110 and 117.

  FIG. 7 is a sequence diagram for explaining the operation of the input / output terminal switching system according to the fourth embodiment. In the terminal 101, the resource information collection function 106 in the relay function 103 relays the request for I / O processing and saves its history, so that the resource information such as the I / O resource identifier, the size of the GUI window, etc. Then, two large information groups such as session information for identifying the connection to the I / O function 110 are extracted and stored in the database 107 (step Sd1).

  Here, when the process 119 is stopped and a terminal switching trigger is applied (step Sd2), the resource information collection function 106 of the terminal 101 transmits the latest image data and the like that need to be additionally acquired for switching to the I / O function. 110 is directly accessed and acquired (step Sd3). Further, after adding the additional data to the database 107, all the data is set as I / O resource related information, and the relay function 104 of the terminal 102 is passed through the inter-terminal communication functions 109 and 116 of the respective terminals 101 and 102. Are transferred to the resource information collection function 113 and registered in the database 114 (step Sd4). The resource reproduction function 115 of the terminal 102 constructs a new session with the I / O function 117 and sends resource information and session information to the I / O function 117 based on the received I / O resource related information. Set (step Sd5).

  Here, the process 119 being executed (the process 120 at the transition destination) cooperates with the service HO functions 121 and 122 to make a process transition from the terminal 101 to the terminal 102 (step Sd6). The technology applied to the service handover is not limited to any technology such as JAVA (registered trademark) or VMware process migration in addition to the technology defined in the related technology.

  Here, the process 120 in the terminal 102 is connected to the I / O function 110 in the terminal 101 in order to continue the service while the input / output remains in the terminal 101. For this reason, the inter-terminal communication function 116 in the terminal 102 communicates with the inter-terminal communication function 109 in the terminal 101, and all subsequent I / O processing requests are transmitted between the inter-terminal communication function 109 and the inter-terminal communication function 116. Either one or both. When receiving the I / O processing request, the inter-terminal communication functions 109 and 116 refer to the session information in the databases 107 and 114 in the respective terminals, and correspond to a session for switching terminals. A setting is made so that bidirectional routing is possible through the path of the I / O function 110-terminal communication function 109-terminal communication function 116-process 120 (step Sd7).

  Here, the process 120 is restarted (step Sd8), and when the ID conversion function 112 detects the completion of the routing setting, the resource information and session information in the database 114 are referred to and the ID conversion function 112 is subsequently referred to. Processing for rewriting the resource IDs and session-specific parameters described in all I / O processing requests to be performed between the two systems of the old transition source and the new transition destination is started (step Sd9). That is, as shown in FIG. 5, conversion is performed between a set of old resource ID: old parameter = AA: aa and a set of new resource ID: new parameter = BB: bb.

  In this way, the user can connect through the path of the I / O function 110-terminal communication function 109-terminal communication function 116-process 120, and can continue the service by switching the process execution to the terminal 102 ( Step Sd10). In addition, when it is desired to return the process execution to the terminal 101 and continue the service, the same processing is performed with the contents (the numerical notation in the figure is different) in which “terminal 101” and “terminal 102” in the above description are replaced. Do.

E. Other Embodiments Next, other embodiments of the present invention will be described.
In the second embodiment described above, when the process transition does not occur, the ID conversion function 62 converts the IDs related to the I / O resources 61 and 68 between the transition source and the transition destination two systems with the configuration shown in FIG. Processing is performed, but these are executed in the function block of the transition destination. This may be changed so as to be executed by the transition source ID conversion function 55.

  In the first to fourth embodiments described above, since the input / output terminal is switched for each I / O processing session, the video is based on the performance information of each terminal. It is also possible to execute input / output by a combination of a plurality of terminals, such as handling by 101 and voice being handled by terminals 2, 52 and 102.

F. Example Next, in the second embodiment and the third embodiment described above, an example of input / output transitions on the X Window system will be described with reference to FIGS. 8 and 9.

F-1. First Example FIG. 8 is a block diagram illustrating a case where input / output on the X Window system is transitioned in the above-described second embodiment (configuration of FIG. 3). The user is using the terminal 221 (A) based on the X Window system. Now, the user uses a service application process corresponding to the X client 239 using the X server 230 that controls input / output devices such as a display and a keyboard, and suddenly, the X server 237 of the terminal 222 (B) Assuming a case where the service is continued after switching, it is assumed that the execution terminal of the X client 239 is not switched because the processing performance of the terminal 221 is sufficient. Therefore, in the terminals 221 and 222, relay functions 223 and 224 that relay as a proxy are installed so that the connection destination of the process does not directly become the X servers 230 and 237, and the connection destination of the process is relayed by specifying an environment variable or the like. Functions 223 and 224 are set.

  First, in the terminal 221, the resource information collection function 226 in the relay function 223 relays the request for I / O processing and saves the history so that resources such as the I / O resource identifier and the size of the GUI window are stored. Two groups of information such as information and session information for identifying connection to the X server 230 are extracted and stored in the database 227.

  Here, when the X client 239 is stopped and a terminal switching trigger is applied, the resource information collection function 226 directly accesses and acquires the latest image data or the like that needs to be additionally acquired for switching. Further, after adding the additional data to the database 227, the resource information collection function in the relay function 224 of the terminal B222 via the inter-terminal communication functions 229 and 236 of each terminal as all data as I / O resource related information Transfer to 233 and register in database 234. The resource reproduction function 235 establishes a new session with the X server 237 and sets resource information and session information for the X server 237 based on the received I / O resource related information.

  Here, since the inter-terminal communication function 236 in the terminal 222 is connected to the X client 239 in the terminal 221, it communicates with the inter-terminal communication function 229 in the terminal 221, and all subsequent I / O processing requests are Then, either one or both of the inter-terminal communication function 229 and the inter-terminal communication function 236 are used. When receiving the I / O processing request, the inter-terminal communication functions 229 and 236 refer to the session information in the databases 227 and 234 in the respective terminals 221 and 223 to determine the session for switching the input / output terminals. In such a case, the X server 237-terminal communication function 236-terminal communication function 229-X client 239 is set so that bidirectional routing is possible.

  Here, when the X client 239 is restarted and the ID conversion function 232 detects the completion of the above routing setting, the resource information and session information in the database 234 are referred to, and thereafter, all IDs that pass through the ID conversion function 232 are referred to. The process of rewriting the resource ID described in the I / O processing request and the session-specific sequence number (#) between the two systems of the old transition source and the new transition destination is started. That is, as shown in FIG. 8, conversion is performed between a set of old resource ID: old sequence # = 0x03c1: 0x0036 and a set of new resource ID: new sequence # = 0x04d0: 0x0001.

  In this way, the user can connect via the route of the X server 237-terminal communication function 236-terminal communication function 229-X client 239 and switch to the X server 237 of the terminal 222 to continue the service.

  If it is desired to return to the X server 230 of the terminal 221 and continue the service, the same processing is performed with the contents of the “terminal 221” and the “terminal 222” in the above description replaced (numeric notations in the figure are different). Can be done.

F-2. Second Example FIG. 9 is a block diagram illustrating a case where input / output on the X Window system is transitioned in the above-described third embodiment (configuration of FIG. 5). The user is using the terminal 271 (A) based on the X Window system. Now, the user is using the service application process corresponding to the X client 289 using the X server 280 that controls input / output devices such as a display and a keyboard, and suddenly, the X server 287 of the terminal 272 (B) Assuming that the service is to be continued after switching, it is assumed that the execution terminal of the X client 289 is switched because the processing performance of the terminal 271 is insufficient. Therefore, relay functions 273 and 274 are installed in the terminals 271 and 272 so that the process connection destination does not directly become the X servers 280 and 287, and the process connection destination is relayed by specifying an environment variable or the like. Functions 273 and 274 are provided.

  First, in the terminal 271, the resource information collection function 276 in the relay function 273 relays a request for I / O processing and saves its history, so that resources such as an I / O resource identifier and a GUI window size are stored. Two groups of information such as information and session information for identifying connection to the X server 280 are extracted and stored in the database 277.

  Here, when the X client 289 is stopped and a terminal switching trigger is applied, the resource information collection function 276 directly accesses the X server 280 to acquire the latest image data that needs to be additionally acquired for switching. Further, after adding the additional data to the database 277, all the data is set as I / O resource related information, and the relay function 274 of the terminal 272 is passed through the inter-terminal communication functions 279 and 286 of the respective terminals 271 and 272. Are transferred to the resource information collection function 283 and registered in the database 284. The resource reproduction function 285 constructs a new session with the X server 287 and sets resource information and session information for the X server 287 based on the received I / O resource related information.

  Here, the running X client 289 (the X client 290 at the transition destination) makes a process transition from the terminal 271 to the terminal 272 in cooperation with the service HO functions 291 and 292. The technology applied to the service handover is not limited to any technology such as JAVA (registered trademark) or VMware process migration in addition to the technology defined in the related technology.

  Here, the inter-terminal communication function 286 in the terminal 272 does not need to be connected to an external process by the service HO, and performs routing setting inside the terminal. That is, when the inter-terminal communication function 286 of the terminal 272 receives the I / O processing request, the session information in the database 284 is referred to, and if the session is going to be switched to the input / output terminal, the X server 287 -Terminal-to-terminal communication function 286-X The client 290 is set so that it can be routed in both directions.

  Here, when the process 290 is restarted and the ID conversion function 282 detects the completion of the routing setting, the resource information and session information in the database 284 are referred to, and thereafter all I's passing through the ID conversion function 282 are referred to. The process of rewriting the resource ID and the session-specific sequence number (#) described in the / O processing request between the two systems of the old transition source and the new transition destination is started. That is, as shown in FIG. 9, conversion is performed between a set of old resource ID: old sequence # = 0x03c1: 0x0036 and a set of new resource ID: new sequence # = 0x04d0: 0x0001.

  In this way, the user can connect via the route of the X server 287-terminal communication function 286-X client 290 and switch to the X server 287 of the terminal 272 to continue the service.

  In addition, when it is desired to return to the X server 280 of the terminal 271 and continue the service, the same processing is performed with the contents in which “terminal 271” and “terminal 272” in the above description are replaced (numeric notations in the figure are different). I do.

  According to the first to fourth embodiments described above, when I / O resources such as in-terminal windows and audio data used by the user are continuously used in different terminals, the entire environment including the I / O function is included. Can be realized without transferring. In addition, it can be realized without modifying the functions of the existing OS. Further, depending on the processing performance of the terminal, all combinations of transitions between the process execution terminal and the input / output execution terminal ((terminal A: terminal B) = (process: input / output), (none: process, input / output), (Input / output: process)).

It is a block diagram which shows the structure of the input / output terminal switching system by 1st Embodiment of this invention. It is a sequence diagram for demonstrating operation | movement of the input / output terminal switching system by this 1st Embodiment. It is a block diagram which shows the structure of the input / output terminal switching system by this 2nd Embodiment. It is a sequence diagram for demonstrating operation | movement of the input / output terminal switching system by this 2nd Embodiment. It is a block diagram which shows the structure of the input / output terminal switching system by this 3rd Embodiment. It is a sequence diagram for demonstrating operation | movement of the input / output terminal switching system by this 3rd Embodiment. It is a sequence diagram for demonstrating operation | movement of the input-output terminal switching system by this 4th Embodiment. FIG. 10 is a block diagram illustrating a case where input / output on X Window is transitioned in the second embodiment (configuration of FIG. 3). It is a block diagram explaining the case where the input / output on X Window is changed in 3rd Embodiment (structure of FIG. 5).

Explanation of symbols

1, 2 terminal 3, 10 ID conversion function 4, 11 resource information collection function 5, 12 database 6, 13 resource reproduction function 7, 14 inter-terminal communication function 8, 15 I / O function 9, 16 I / O resource 17, 18 Relay function 51, 52 Terminal 53, 54 Relay function 55, 62 ID conversion function 56, 63 Resource information collection function 57, 64 Database 58, 65 Resource reproduction function 59, 66 Inter-terminal communication function 60, 67 I / O function 61 , 68 I / O resource 69 Process 101, 102 Terminal 103, 104 Relay function 105, 112 ID conversion function 106, 113 Resource information collection function 107, 114 Database 108, 115 Resource reproduction function 109, 116 Inter-terminal communication function 110, 117 I / O function 111, 118 I / O resource 119, 120 Process 121, 122 Service HO function 221, 222 Terminal 223, 224 Relay function 225, 232 ID conversion function 226, 233 Resource information collection function 227, 234 Database 228, 235 Resource reproduction function 229, 236 Inter-terminal communication function 230 237 X server 231 238 I / O resource 239 X client 271 272 terminal 273 274 Relay function 275 282 ID conversion function 276 283 Resource information collection function 277 284 Database 278 285 Resource reproduction function 279 286 terminal Communication function 280, 287 X server 281, 288 I / O resource 289, 290 X client 291, 292 Service HO function

Claims (10)

An input / output terminal switching system that continuously uses an I / O resource being used in one terminal between the first terminal and the second terminal in the other terminal,
Each of the first terminal and the second terminal is
An I / O function that performs I / O through a direct interface with an I / O resource;
Resource information collection means for collecting I / O resource related information for I / O executed by the I / O function;
When there is a terminal switching trigger at any terminal, transfer means for transferring the I / O resource related information to the other terminal;
Resource reproduction means for reproducing according to the content of the acquired I / O resource related information;
An ID conversion unit that relays an I / O processing request and rewrites identification information related to the I / O resource described in the I / O processing request between the old system before the input / output transition and the new system at the transition destination. And an input / output terminal switching system. Inter-terminal routing setting means for setting bidirectional routing between the first terminal and the second terminal;
Through the routing set by the inter-terminal routing setting means, the program is executed by the transition source terminal from the input / output transition destination terminal of the first terminal and the second terminal. The input / output terminal switching system according to claim 1, further comprising: a process using unit that uses the process. Internal routing setting means for setting routing inside the first terminal and the second terminal;
A process that is the main body of a program executed inside the input / output transition destination terminal of the first terminal and the second terminal is used via the routing set by the internal routing setting means. The input / output terminal switching system according to claim 1, further comprising: a process using unit. Inter-terminal routing setting means for setting bidirectional routing between the first terminal and the second terminal;
Through the routing set by the inter-terminal routing setting means, the program is executed from the input / output transition source terminal to the transition destination terminal among the first terminal and the second terminal. The input / output terminal switching system according to claim 1, further comprising: a process using unit that uses the process.   5. The input according to claim 1, wherein the resource information collection unit acquires data that needs to be additionally acquired for terminal switching by directly connecting to the I / O function. 6. Output terminal switching system.   5. The input / output terminal according to claim 1, wherein the resource information collecting unit relays the I / O processing request, extracts the I / O resource related information, and creates a database. Switching system. A terminal that continuously uses an I / O resource being used by a transition destination terminal,
An I / O function that performs I / O through a direct interface with an I / O resource;
Resource information collection means for collecting I / O resource related information for I / O executed by the I / O function;
And a transfer means for transferring the I / O resource related information to the other terminal when there is a terminal switching trigger. A terminal that continuously uses the I / O resource being used by the transition source terminal,
Resource reproduction means for reproducing according to the content of the I / O resource related information acquired from the transition source terminal;
An ID conversion unit that relays an I / O processing request and rewrites identification information related to the I / O resource described in the I / O processing request between the old system before the input / output transition and the new system at the transition destination. And a terminal. An input / output terminal switching method for continuously using I / O resources being used in a transition source terminal by a transition destination terminal,
Collecting I / O resource related information at the transition source terminal;
When there is a terminal switching trigger at the transition source terminal, the I / O resource related information is transferred to the transition destination terminal;
Reproducing the I / O resource in accordance with the content of the I / O resource related information in the transition destination terminal;
The I / O processing request is relayed at the input / output transition destination terminal, and the identification information regarding the I / O resource described in the I / O processing request is changed between the old one before the input / output transition and the new one at the transition destination. A step to rewrite between the two systems;
And executing I / O at the transition destination terminal through a direct interface with the I / O resource based on the identification information regarding the converted I / O resource. Output terminal switching method. To the computer that controls each terminal when the I / O resource being used in the transition source terminal is continuously used in the transition destination terminal,
Collecting I / O resource related information at the transition source terminal;
When there is a terminal switching trigger at the transition source terminal, the I / O resource related information is transferred to the transition destination terminal;
Reproducing the I / O resource in accordance with the content of the I / O resource related information in the transition destination terminal;
The I / O processing request is relayed at the input / output transition destination terminal, and the identification information regarding the I / O resource described in the I / O processing request is changed between the old one before the input / output transition and the new one at the transition destination. A step to rewrite between the two systems;
The transition destination terminal executes I / O execution through a direct interface with the I / O resource based on the identification information regarding the converted I / O resource. program.

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