JP3932641B2 - Remote access system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a remote access system, and more particularly to a system for remotely accessing a computer resource connected to a network from an application, which can operate on any computer operating on a computer connected to a network.
[0002]
[Prior art]
FIG. 11 shows an example of a conventional remote access method. An application A91 that accesses the file F91 using the local environment L91 is created on the computer M91 (arrow 91). A similar environment is prepared for the computer M92 (arrow 92). A product that realizes the same function may be provided from the manufacturer instead of the application. Also, here, a file is cited as a local resource, but it may be a hardware device or a program.
[0003]
Next, when accessing the file F91 of the computer M91 from the application A93 of the computer M93, the application Shen A93 and the application A91 communicate (arrow 93) to realize remote access. The same processing is performed for the computer M92 (arrow 94). As described so far, in order to access local resources of a computer, it is necessary to communicate by placing an application that accesses the local resource for each computer, or to operate the application on a computer having local resources.
[0004]
[Problems to be solved by the invention]
The conventional method can operate only on a computer that runs an application, and access to the resources of the partner computer is realized by placing the application on the partner computer and performing communication. For this reason, it is necessary to review the work (applications) every time the network is expanded, and the functions provided by each computer are different, which makes it difficult to perform tests and a large amount of man-hours and ability. Was spent.
[0005]
The present invention has been made in view of such points, and one application can operate on any computer connected by a network and can access local resources of any computer. Remote debugging from a single computer equipped with a debugging environment, easy operation with a high-performance computer such as a CPU, and centralized management of applications are possible, enabling flexible business construction. The purpose is to do.
[0006]
[Means for Solving the Problems]
FIG. 1 is a principle diagram of the present invention that achieves the above object.
The computer M11 includes a remote environment R11, a local environment L11, an execution control unit P11, and an interface unit I11. The remote environment R11 includes a communication unit T11 and a distribution unit B11. The local environment R11 is a common function unit C11. The unique function unit O11. The computer M12 includes a remote environment R12, a local environment L12, an execution control unit P12, and an interface unit I12. The remote environment R12 includes a communication unit T12. The local environment R12 includes a common function unit C12 and a unique function unit O12. Consists of There are an application A11 that operates on the computer M11 and an application A11 ′ that operates on the computer M12. The application A11 and the application A11 ′ may be the same. The computer M11 and the computer M12 are connected by a network N11 (LAN or the like).
[0007]
According to the above configuration, in the execution control units P11 and P12, the applications A11 and A11 ′ hide the difference between the OSs of the computers M11 and M12 so that the application can operate on any computer, and the applications A11 and A11 ′ are interface units I11 and I12. Control by using. Also, access control of the remote environment R12 and the local environments L11 and L12 is performed. The same application A11 and application A11 ′ can operate as they are. The interface units I11 and I12 provide an interface common to all the computers so that the application can operate on any computer in the same manner as the execution control units P11 and P12, and are called from the applications A11 and A11 ′. The common function units C11 and C12 are program groups or library groups that realize common functions even if the OS is different in all computers in order to implement the execution control units P11 and P12 in a form independent of the OS of the computer. It is called from the control units P11 and P12 and the distribution unit B11. The unique function units O11 and O12 are a group of programs or libraries that realize functions using the functions of the OS of each computer, and are called from the common function units C11 and C12. The communication units T11 and T12 communicate information requested from the application and a result for the request. As a communication means, there is communication using a socket, etc., and any computer can be connected according to the definition of communication. The distribution unit B11 accesses the local resource by calling the common function unit C11 of the local environment L11 from the request received by the communication unit T11.
[0008]
As a result, by connecting the remote environments R11 and R12 of the computers M11 and M12, the same operation result as before can be obtained even if the application A11 that should originally operate on the computer M11 is brought to the computer M12 and operated.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
An outline of the present invention will be described with reference to the drawings. The configuration is the same as in FIG. The application A11 operating on the computer M11 operates on the execution control unit P11 and uses the interface unit I11 to make a request to the common function unit C11 of the local environment L11, so that the common function unit C11 calls the specific function unit O11. (Arrow 11). The application A11 is brought into the computer M12 and is operated as it is (it becomes the application A11 ′). The remote environment R11 of the computer M11 and the remote environment R12 of the computer M12 are connected by a network. At this time, only the common functional unit C11 of the local environment of the computer M11 to be used is defined in the remote environment R12 (the local environment L11 of the computer M11 may be used, but considering communication load, communication performance, and the like) Unless the use of the local environment L11 of the computer M11 such as file access is essential, the local environment L12 of the computer M12 is preferably used). The application A11 ′ operating on the computer M12 operates on the execution control unit P12 and accesses the remote environment R12 or the local environment L12 using the interface unit I12. As described above, in the case of a request for the common function defined in the remote environment, the communication unit T12 of the remote environment R12 notifies the request information to the communication unit T11 of the remote environment R11 of the computer M11, and the distribution unit B11 is local. By making a request to the common function unit C11 of the environment L11, the common function unit C11 realizes a call request to the unique function unit O11 (arrow 13). The execution result is notified by the reverse route. On the other hand, in the case of a request to the local environment, by making a request to the common function unit C12 of the local environment L12, the common function unit C12 realizes a call request for the unique function unit O12 (arrow 12). There is no need to be aware of calling the remote environment R12 and the local environment L12 from the application A11 ′.
[0010]
FIG. 2 is a diagram showing a control structure of the remote access method of the present invention. In (a), an interface is provided to the application in units of common functions, and a communication unit and a distribution unit are realized for each common function. For example, when the number of common functions increases, it is necessary to add a communication unit and a distribution unit corresponding to this. In (b), an interface is provided to the application in units of common functions, and distribution of each common function is realized by one communication unit and one distribution unit. For example, when the number of common functions increases, it is necessary to modify the communication unit and the distribution unit corresponding to this.
[0011]
FIG. 3 is a diagram showing a control example of the remote access method of the present invention. When the application A31 of the computer M31 calls A which is a common function (callA), if the common function A is defined in the remote environment R11, the remote environment R31 is called from the execution control unit P31 and the remote environment R31. The communication unit T31 passes the request to the communication unit T32 of the computer M32 that is the connection destination of the remote environment. The computer M32 calls the common function unit C32 via the communication unit T32 and the distribution unit B32 for the received request.
[0012]
The common function unit C32 calls the unique function unit O32 to realize the request, and returns the result through a reverse route. On the other hand, when the common function A is not defined in the remote environment R11, the local environment L31 is called from the execution control unit P31, and the common function unit C31 is called. The common function unit C31 calls the unique function unit O31 to realize the request, and returns the result through a reverse route.
[0013]
FIG. 4 is a diagram showing an example of management of the environment of the remote access method of the present invention. The remote environment R41 and the local environment L41 are defined for each application. The directory d1 of the remote environment R41 and the directory d1 of the local environment L41 exist under the application home directory d0. Under the directory d1 of the remote environment R41, common function units f1 and f2 exist. On the other hand, common function units f1 and f3 exist under the directory d2 of the local environment L41. Here, f1 exists in both environments, but it is only necessary to determine a rule that the execution control unit refers to from the remote environment R41. If this rule is taken over, f1 of the remote environment R41 is used. Become.
[0014]
FIG. 5 is a diagram showing an embodiment of remote debugging using the remote access method of the present invention. The configuration is the same as in FIG. Here, a debug function D52 is added. Although the debugging function D52 is positioned below the execution control unit P52 in this description, it may be positioned above the execution control unit P52 (from the application A51 ′). Here, since the original computer M51 on which the application A51 operates does not have a debug function, the computer M52 having the debug function D52 remotely debugs the application A51 (the same as the application A51 ′ on the computer M52). . The application A51 of the computer M51 normally accesses the local environment L51 of the computer M51 (arrow 51). However, since the computer M51 does not have a debugging function, a series of processes cannot be debugged. Therefore, the application M51 of the computer M51 is brought to the computer M51. As described above, since the execution control units P51 and P52 provide an environment in which the application can be operated without reworking the application, the application A51 can operate as the application A51 ′ without any problem. The application A51 ′ operates on the execution environment unit P52 and the debug function D52, so that the local environment access (arrow 53) and the remote environments R51 and R52 access the local environment L51 of the computer M51 via the network N51. (Arrow 52). As a result, it becomes possible to debug the application A51 that could not be debugged in the real environment.
[0015]
FIG. 6 is a diagram showing an example of using other computer resources using the remote access method of the present invention. The configuration is the same as in FIG. Here, the files F61 and F62 are added. Here, resources on the network are accessed from a computer application in the same manner as local resources.
In the access method, the application A61 of the computer M61 accesses the file F61 in the local environment L61 locally (arrow 61), or the application A62 of the computer M62 accesses the file F62 in the local environment L62 locally (arrow 62). A completely different application A63 of the computer M63 remotely accesses the file F62 of the local environment L62 of the computer M62 via the network N61 using the remote environments R62 and R63 (arrow 64). This method is similar to conventional remote access. The other is that the application A61 running on the computer M61 is operated as the application A61 ′ on the computer M63, and the application A61 ′ remotely accesses the file F61 in the local environment L61 of the computer M61 (arrow 63). This method is effective when the line speed is faster than ever and the performance of the CPU of the computer M63 is higher than that of the computer M61. It is also an effective means for constructing a simple business or performing unified management of applications.
[0016]
FIG. 7 is a flowchart showing a processing procedure on the application operation side of the remote access method of the present invention. In the description of this flowchart, the number following S indicates a step number.
[S71] Define a path for the local environment and the remote environment for operating the application (in the first case, generate a path), and install common functions and uniqueness required for the local environment.
[0017]
[S72] A common function used in the remote environment is defined in the remote environment. Also, define the network with the remote environment of the partner computer (create an environment that can communicate with the partner).
[S73] The local environment and remote environment paths are specified to start the application.
[0018]
[S74] If the execution of the application is terminated (return to OS), the process is terminated. Otherwise, the process proceeds to step S75.
[S75] If the call is for a common function defined in the remote environment, the process proceeds to step S77, otherwise the process proceeds to step S76.
[S76] The common function of the local environment is called to realize the requested function, and the process proceeds to step S74.
[0019]
[S77] The remote environment is called, the common function of the partner computer is called, the requested function is realized, and the process proceeds to step S74.
FIG. 8 is a flowchart showing a processing procedure on the resource side accessed by the remote access method application of the present invention. In the description of this flowchart, the number following S indicates a step number.
[0020]
[S81] A common function name to be executed and information necessary for execution are received from the partner computer connected in the remote environment.
[S82] A common function in the local environment is called from the common function name. At this time, the information received from the partner computer is also passed.
[S83] The common function in the local environment is realized by calling the specific function for the requested function.
[0021]
[S84] The execution result is notified to the partner computer through the reverse route when called, and the processing for the request is terminated.
FIG. 9 is a diagram showing an embodiment in which a terminal-side GUI is used in the remote access method of the present invention. The configuration is the same as in FIG. What is added here is a GUI control unit G102. Here, a case where the computer M101 on which the application A101 operates does not have a GUI function (user interface) or uses a terminal having an excellent GUI function will be described.
[0022]
The application A101 of the computer M101 accesses and processes / edits the file resource F101 (arrow 100). The processed / edited data is processed as if it is stored in a file in the local environment. At this time, the stored data is notified to the local environment L102 of the terminal W101 by passing through the remote environment R101, the network N101, and the remote environment R102 (arrow 101). Next, when the GUI control unit G102 is called from the local environment L102, data processed by the computer M101 is displayed on the terminal W102 (arrow 102).
[0023]
The data input from the terminal W101 is notified to the application A101 of the computer M101 through the reverse route.
FIG. 10 is a diagram showing another example in which resources of other computers are used in the remote access method of the present invention. The configuration is the same as in FIG. Here, a pseudo environment S111 is added. Here, the application A111 of the computer M113 accesses the file resource F111 of the computer M111 and the file resource F112 of the computer M112 on the network N111 in the same manner as local resources.
[0024]
The computer M112 has been described with reference to FIG. Since the computer M111 does not have an execution control unit and a remote environment, control cannot be performed in the same manner as the computer M112. Further, the application A111 cannot operate on the computer M111. However, by determining the data format (protocol) that flows through the network N111, by creating a pseudo environment S111 that interprets the data format by the computer M111 without the execution control unit and the remote environment, the application A111 of the computer M113 is The file resources of each computer (M111, M112) can be accessed in the same way without being aware of the mounting status of each computer (M111, M112) (arrow 111).
[0025]
【The invention's effect】
As described above, according to the present invention, since one application can operate on any computer connected via a network and can access local resources of any computer, for example, one computer having a debugging environment. Can be remotely debugged, easily operated on a high-performance computer such as a CPU, and centralized management of applications, enabling flexible business construction.
[Brief description of the drawings]
FIG. 1 is a principle configuration diagram of a remote access system of the present invention.
FIG. 2 is a diagram showing a control structure of a remote access method of the present invention.
FIG. 3 is a diagram illustrating a control example of a remote access method according to the present invention.
FIG. 4 is a diagram showing an example of management of the environment of the remote access method of the present invention.
FIG. 5 is a diagram showing an embodiment of remote debugging using the remote access method of the present invention.
FIG. 6 is a diagram showing an example of using other computer resources using the remote access method of the present invention.
FIG. 7 is a flowchart showing a processing procedure on the application operation side of the remote access method of the present invention.
FIG. 8 is a flowchart showing a processing procedure on the resource side accessed by an application of the remote access method of the present invention.
FIG. 9 is a diagram illustrating an embodiment in which a terminal-side GUI is used in the remote access method of the present invention.
FIG. 10 is a diagram showing another example in which resources of other computers are used in the remote access method of the present invention.
FIG. 11 is a diagram illustrating an example of a conventional remote access method.
[Explanation of symbols]
A11, A11 ′, A21, A22, A31, A51, A51, A61, A61, A62, A63, A91, A92, A93, A101, A111 Applications B11, B21, B22, B32 Distribution units C11, C12, C21, C22 , C31, C32 Common function part D52 Debug function I11, I12, I21, I22, I31 Interface part L11, L12, L31, L41, L51, L52, L61, L62, L91, L92, L102, L1114, L112 Local environment M11, M12, M21, M22, M23, M24, M31, M51, M52, M61, M62, M63, M91, M92, M93, M101, M111, M112, M113 Computers N11, N51, N61, N91, N101, N102 Network O 1, O12, O21, O22, O31, O32 Specific function units P11, P12, P31, P51, P52, P61, P62, P63, P101, P102, P112, P113 Execution control units R11, R12, R31, R41, R51, R52, R61, R62, R63, R101, R102, R112, R113 Remote environment T11, T12, T21, T22, T23, T24, T31, T32 Communication unit G102 GUI control unit S111 Pseudo environment F61, F62, F91, F92, F101 , F111, F112 File resources

Claims (3)

A remote access system comprising a plurality of computers connected by a network,
Each of the computers is
Upon receiving a processing request, a unique function unit that performs processing using the function of the computer and sends back the result,
Upon receiving the common function information, and a plurality of common function section for outputting a result subjected to the processing request by the inherent function unit a corresponding,
When common function information is received from another computer, the processing related to the common function information is distributed to the common function unit corresponding to the common function information, and the processing result from the distributed common function unit is transmitted to the other computer A sorting part to send back;
If the calling of the common function information from the application running on the host computer is Tsu Oh determines whether the definition of the corresponding common function information of another computer as a target has been made,
If the definition has been made, send the common function information to the corresponding other computer, and then output the execution result from the other computer to the application,
If the definition is not made, a request for processing the common function information is sent to the corresponding common function unit, and a result from the common function unit that made the request for processing is sent back to the application. A remote access system comprising: an execution control unit for outputting. A computer in a remote access system comprising a plurality of computers connected by a network,
The calculator is
Upon receiving a processing request, a unique function unit that performs processing using the function of the computer and sends back the result,
Upon receiving the common function information, and a plurality of common function section for outputting a result subjected to the processing request by the inherent function unit a corresponding,
When common function information is received from another computer, the processing related to the common function information is distributed to the common function unit corresponding to the common function information, and the processing result from the distributed common function unit is transmitted to the other computer A sorting part to send back;
If the calling of the common function information from the application running on the host computer is Tsu Oh determines whether the definition of the corresponding common function information of another computer as a target has been made,
If the definition has been made, send the common function information to the corresponding other computer, and then output the execution result from the other computer to the application,
If the definition is not made, a request for processing the common function information is sent to the corresponding common function unit, and a result from the common function unit that made the request for processing is sent back to the application. A computer having an execution control unit for outputting. A computer in a remote access system consisting of multiple computers connected by a network
Upon receiving a processing request, a unique function unit that performs processing using the function of the computer and sends back the result,
Upon receiving the common function information, and a plurality of common function section for outputting a result subjected to the processing request by the inherent function unit a corresponding,
When common function information is received from another computer, the processing related to the common function information is distributed to the common function unit corresponding to the common function information, and the processing result from the distributed common function unit is transmitted to the other computer A sorting part to send back;
If the calling of the common function information from the application running on the host computer is Tsu Oh determines whether the definition of the corresponding common function information of another computer as a target has been made,
If the definition has been made, send the common function information to the corresponding other computer, and then output the execution result from the other computer to the application,
If the definition is not made, a request for processing the common function information is sent to the corresponding common function unit, and a result from the common function unit that made the request for processing is sent back to the application. A computer-readable recording medium storing a remote access program that functions as an output execution control unit.

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