JPH0764896A - Network system service information processing method - Google Patents

Abstract

PURPOSE:To allow a terminal equipment to execute the function as an exclusive server which is necessary on a system, at need by temporarily registering a terminal connected onto a network as the server each time a request is issued from a terminal on a client side, and restoring it to the terminal equipment after a server processing ends. CONSTITUTION:A network means 104 is equipped with a program storage part which stores a protocol for controlling communication on the network, and each kind of table which manages the server right, and the switching of the access right is controlled by a network control part. Then, a client program stored in a terminal equipment 102 or 103 which issues a service information offering request is activated, and the acquiring of the service information is started. After the service information has been acquired, the server end is communicated to a server program, the server program of the server which is temporarily registered in a network control means is ended according to the server end, and the server automatically returns to the terminal equipment 102 or 103.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a service information processing method for a network system in which a plurality of computer devices connected on a network communicate with each other to provide a desired service.

[0002]

2. Description of the Related Art Conventionally, a program (called a server) that provides a network becomes accessible to a program (called a client) that requests a service after being started on a specific machine, and information is exchanged by network communication. The conventional service providing processing operation will be described below with reference to FIG.

FIG. 7 is a block diagram illustrating a system configuration to which a service information processing method of a conventional network system is applied.

As shown in this figure, when network services such as database access by multiple users are jointly used, at the same time, data management is centralized and performed by a specific computing device in order to prevent inconsistency changes. A computing device 701 that provides a network service and a computing device 70 that uses the same service
2 and the computing device 703 are connected by the network means 704.

To provide a service, first, a computing device 701 that provides a network service is activated, and when the necessary preparation is completed, the service provision starts. The computing device 702 or computing device 703 that uses the service then sends a service request through the network means 704 when needed. Since the computing device 701 that provides the network service places an order on the received requests, asynchronous problems such as simultaneous changes do not occur.

[0006]

However, under the conventional network system environment, when the number of services increases, a dedicated server is required for each service, and the cost for system construction increases, and
The system efficiency decreases due to the coexistence of the server that is used infrequently (in the unused state) and the server that is used frequently (in the overloaded state).

Further, when the system environment is changed, a dedicated server also needs to be adapted to the system environment, and the system changing work becomes very complicated.

Furthermore, depending on the type of service information,
If a server that is rarely used exists on the system, even if it does not require the service, other servers may not be used unless the server is started.

Further, if the server process is terminated and a subsequent server request is issued, the terminal device cannot complete the server process and return to the process as the terminal device. there were.

The present invention has been made in order to solve the above-mentioned problems, and a terminal connected to a network is provisionally registered as a server for each request from a terminal on the client side, and after the server processing is completed. A service information processing method for a network system is provided, which enables the terminal device to perform a function as a dedicated server required for the system in an appropriate period by returning to the terminal device.

[0011]

A first network system service information processing method according to the present invention activates a server program in response to a service information provision request from any terminal device, and the server program is activated. Client program stored in the terminal device that has issued the service information provision request by identifying the registered terminal device and temporarily registering it as a server in the network control means, permitting the temporarily registered server to access the resource. To start service information acquisition from the resource, notify the server program of server termination after acquiring the service information, and activate the server program of the server temporarily registered in the network control means in response to the server termination. Upon completion, the server is automatically returned to the terminal device.

A second network system service information processing method according to the present invention is a terminal for activating a server program by analyzing a service information provision request issued according to a client program activated by any of the terminal devices. Select a device and temporarily register it as a server, notify the terminal device that issued the service information provision request that the server has started, and after acquiring the notification, terminate the server program according to the server termination notified from the client side terminal. Then, the server automatically returns to the terminal device.

A third network system service information processing method according to the present invention is a terminal for activating a server program by analyzing a service information provision request issued in accordance with a client program activated by any terminal device. Select a device and provisionally register it as a server, notify the terminal device that issued the service information provision request that the server has started, and after obtaining the notification, wait for the subsequent server according to the server end notified from the client side terminal The client information is confirmed, the terminal device that is the next server candidate is selected based on the confirmation result, new temporary registration is performed, and the client information is inherited from the terminal device that terminates the server to the newly temporarily registered terminal device. And notify the client waiting for the server to start,
Switch the server destination continuously.

[0014]

In the first aspect of the present invention, the client program stored in the terminal device that has issued the service information providing request is activated to start obtaining service information from the resource, and after the service information is obtained, the server program is executed. Since the server end is notified, and the server program of the server temporarily registered in the network control means is terminated in response to the server end and the server is automatically returned to the terminal device, access to resources on the network occurs. Only in such a case, the server function is activated, so that the terminal device on the network can function as a server at any time.

In the second invention, the terminal device which has issued the service information providing request is notified of the server start, and after acquiring the notification, the server program is terminated in response to the server termination notified from the client side terminal. Since the server automatically returns to the terminal device, it is possible to process the service information by switching the function processing as the terminal device and the server and the function on the network at any time, without making the dedicated server resident in the system. .

According to the third aspect of the present invention, the server device is notified of the start of the server to the terminal device which has issued the service information providing request, and after the notification is obtained, the server waits for the subsequent server in response to the server end notified from the client side terminal. The client information is confirmed, the terminal device that is the next server candidate is selected based on the confirmation result, new temporary registration is performed, and the client information is inherited from the terminal device that terminates the server to the newly temporarily registered terminal device. The server start is notified to the client waiting for the server, and the server destination is continuously switched, so even if a server request from a subsequent client occurs at the server end, the server request will not be interrupted to the subsequent server. Can be processed.

[0017]

【Example】

[First Embodiment] FIG. 1 is a block diagram illustrating a system example to which a service information processing method of a network system according to a first embodiment of the present invention is applied.

In the figure, reference numeral 101 is a storage device functioning as a database.

A function of arbitrating a read / write request from the user terminal 102 or the user terminal 103 and giving a read / write right to the storage device 101 and exclusively managing the setting of the right so as not to give a read / write right to both at the same time is provided. There is.

Reference numerals 102 and 103 denote user terminals (terminals) formed of workstations, for example. Reference numeral 104 denotes a network means, which is configured so that the above 101 to 103 can communicate with each other via the network means 104. The network means 104 includes
A program storage unit for storing a protocol for controlling communication on the network and various tables for managing server rights are provided, and access right switching is controlled by a network control unit (not shown).

The operations on the client side and the server side in the service information processing method of the first network system according to the present invention will be described below with reference to the flowcharts shown in FIGS.

FIG. 2 is a flow chart showing an example of a first client processing procedure in the service information processing method of the network system according to the present invention. In addition,
(1) to (9) indicate the respective steps, which correspond to the processing on the program (client) side that requests the service.

First, since a right is required before reading / writing the storage device 101, processing for obtaining the right is executed (1).
Then, it is determined whether or not there is already a server (a program that provides a service) that provides a network service (2). In the case of the first time, since the server has not been started, the procedure proceeds to step (3), and the server is newly started on the same terminal. Then, the existence of the server is registered in the network means 104 (4), and step (2)
Return to.

After that, the determination in step (2) determines that the server exists, and requests the right from the server via the network means 104 (5). Then, it is judged whether or not the right is permitted (6). If the right is not permitted, the process returns to the step (2) to request the right again from the server.

On the other hand, if it is determined in step (6) that the right is permitted, the storage device 101 is read and written via the network means 104 (7) and the server is notified of the return of the right ( 8), the process is ended (9).

FIG. 3 is a flow chart showing an example of a first server processing procedure in the service information processing method for the network system according to the present invention. In addition, (1) ~
(7) shows each step and corresponds to the processing of the program (server side) that provides the service.

First, when the server is started (1), the right state is set to "none" because the client is not given the right at the initial point (2). Next, it waits for a communication response from the client (3). FIG. 2 described above
If there is a right request from the client in step (5) shown in (4), it is judged whether the right setting state is “none” (4), and if YES, the right is permitted (6) and the right state is set to the client. Set with name (7) and return to step (3).

On the other hand, if the judgment in step (4) is NO, the right is rejected (5) and the process returns to step (3). In the waiting state of step (3), if there is a notification to restore the client right described above (in step (8) shown in FIG. 2), the process returns to step (2).

As described above, according to the first aspect of the present invention shown in the first embodiment, the client program stored in the terminal device that has issued the service information providing request is activated to start obtaining service information from the resource. , After the service information is obtained, notify the server program of the server termination,
When the server is terminated, the server program of the server temporarily registered in the network control means is terminated,
Since the server automatically returns to the terminal device, the server function is activated only when the resource on the network is accessed, so that the terminal device on the network can function as a server at any time.

As a result, which terminal 102 or terminal 1
If 03 does not request the server, the server function is not activated and there is no need to move it in vain.

When the terminal 102 activates the server function and then terminates the server function, if there is a request from the terminal 103 thereafter, the terminal 103 is newly activated at that point and continuously provides the network service. [Second Embodiment] FIG. 4 is a block diagram illustrating a system example to which a service information processing method of a network system according to a second embodiment of the present invention is applied.

In the figure, reference numeral 401 is a network means for communicatively connecting computing devices 402 to 404 having a function of performing data processing by a program. The network service in this embodiment receives an input, performs a calculation, and then returns the calculation result. The server that provides this network service is any computing device 40.
2, 403 and 404 are configured to be executable. The operations on the client side and the server side in the service information processing method of the second network system according to the present invention will be described below with reference to the flowcharts shown in FIGS.

FIG. 5 is a flow chart showing an example of a second client processing procedure in the service information processing method of the network system according to the present invention. In addition,
(1) to (12) indicate the respective steps, which correspond to the processing on the program (client) side that requests the service.

First, when the processing for using the network service executed on any of the computing devices 402 to 404 is started (1), it is determined whether the server is already running (2). Proceeding to (3), by the inquiry of the network means 401, the computing device 40
Check the one suitable for starting the server among 2 to 404. Then, as a result of the interrogation via the network means 401, a server on a suitable computing device is started, registered in the network means 401 (4), and after starting,
Return to step (2).

On the other hand, if the server already exists in step (2), a service request is sent to the server (5). This service request allows the server side to know which client is currently in use. Then, it is determined whether the service request is permitted (6). If it is determined that the service is not permitted, the process returns to step (2). If it is determined that the service is permitted,
It is determined whether or not there is data input (7). If NO, a service end notification is sent to the server (11), and the process ends (12).

On the other hand, if it is determined in step (7) that there is data input, the input data is selected and sent to the server being started (8), and a reply is received from the server (9), The received data is output (10) and the process returns to step (7).

FIG. 6 is a flow chart showing an example of the second server processing procedure in the service information processing method of the network system according to the present invention. In addition, (1) ~
(9) shows each step, which corresponds to the processing of the program (server side) that provides the service.

When the server is started (1), the client list (stored in the RAM of the terminal device started by the server) is initialized to empty (2). When the initialization is completed, it enters the communication waiting state (3), and when the service request is received,
Proceeding to step (4), the transmitted specific number of the computing device (for example, device number) is added to the client list, and the process returns to step (3) to enter the communication waiting state.

In the communication waiting state, when data is received from the client computing device which has already requested the service, calculation is performed in step (5). It should be noted that, in the present embodiment, since there is no particular relation to the calculation content, detailed description of the calculation processing will be omitted.

Then, a reply is sent to the computing device that sent the calculation result (6), and the process returns to step (3) to return to the communication waiting state.

On the other hand, in the communication waiting state of step (3), when the end of service is received from the client computing device which has already requested the service, the service request of the transmitted computing device is deleted from the client list (7). Then, the list of deleted clients is checked to determine whether it is empty (8). If NO, there is a client requesting another service, and the data is received. Therefore, the process returns to step (3). Return to communication status.

On the other hand, if it is determined in step (8) that the client list is empty, it is determined that there is no client requesting the service, and the server is terminated (9).

As described above, according to the second invention shown in the second embodiment, the terminal device that has issued the service information providing request is notified of the server start, and after the notification is obtained, the terminal on the client side is notified. When the server is terminated, the server program is terminated and the server is automatically returned to the terminal device, so even if you do not make the dedicated server resident in the system,
It becomes possible to process the service information by switching the function processing as the terminal device and the server and the function on the network at any time. [Third Embodiment] In the second embodiment, when all the clients requesting the service have finished the service,
Although the case where the server is no longer needed and the processing is terminated has been described, it is possible that another client requests the service immediately before the server is terminated, so the server being activated is transferred to another computing device, The service may be continuously provided. The case will be described in detail below.

After the server is started in the step (4) shown in FIG. 5 described in the second embodiment, the server is also ended when the service of the started client is ended. Therefore, the step (11) shown in FIG. ), The server end command is sent instead of the service end.

When the server receives this server end command, the client list is updated in the same way as the service end in step (7), and when it becomes empty, the same process as in the second embodiment ends.

However, the client list is not empty. In other words, if there are any clients requesting the service, the following processing is performed. That is, as in step (3) shown in FIG. 5, the network means is caused to select an appropriate computing device for newly starting the server. Then, when the server is started, the client list of the currently executing server is transmitted to another selected computing device.

Therefore, the acting server should start with the same client list. Then, after passing the client list, a new server is registered upon completion. During initialization and re-registration of a new server, the server that terminates will be refused if there is a new service request. In that case, the refused client makes a request again by step (6) shown in FIG. 5, and the request for the service is permitted when switched to the new server.

As described above, according to the third invention of the third embodiment, the terminal device that has issued the service information providing request is notified of the server start, and after the notification is obtained, the terminal on the client side is notified. When the server is terminated, the subsequent client information waiting for the server is confirmed, based on the confirmation result, the terminal device which is the next server candidate is selected and newly provisionally registered, and the newly provisionally registered terminal device is used as the server. The client information is inherited from the terminal device to be terminated, the server start is notified to the client waiting for the server, and the server destination is continuously switched.Therefore, when the server ends, a server request from a subsequent client occurs. Also, the subsequent server can process the server request without any trouble.

The present invention may be applied to a system composed of a plurality of devices or an apparatus composed of one device. Further, it goes without saying that the present invention can be applied to the case where it is achieved by supplying a program to a system or an apparatus.

[0050]

As described above, the first aspect of the present invention
According to the present invention, the client program stored in the terminal device that has issued the service information providing request is activated to start obtaining service information from the resource, and after the service information is obtained, the server program is notified of server termination. Then, the server program of the server temporarily registered in the network control means is terminated according to the termination of the server, and the server is automatically returned to the terminal device. Therefore, only when access to resources on the network occurs. Since the server function is activated, the terminal device on the network can function as a server at any time.

According to the second invention, the terminal device which has issued the service information providing request is notified of the server start, and after the notification is obtained, the server program is ended in response to the server end notified from the client side terminal. Since the server automatically returns to the terminal device, the service information can be processed by switching the function processing as the terminal device and the server and the function on the network at any time without making the dedicated server resident in the system.

According to the third invention, the terminal device which has issued the service information providing request is notified of the server start, and after the notification is acquired, the server waits for the subsequent server according to the server end notified from the client side terminal. The client information is confirmed, the terminal device that is the next server candidate is selected based on the confirmation result, new temporary registration is performed, and the client information is inherited from the terminal device that terminates the server to the newly temporarily registered terminal device. Then, the server start is notified to the client waiting for the server, and the server destination is continuously switched. Therefore, even if a server request from a subsequent client occurs at the server end, the subsequent server will not interfere with the server. The request can be processed.

Therefore, the service information can be processed by switching the terminal device on the system as a server at one time and as a client at another time, and the terminal device can function as a virtual server on the system only when necessary. While automatically returning to the terminal device at each end,
It is possible to construct a system that can efficiently execute network processing at low cost.

[Brief description of drawings]

FIG. 1 is a block diagram illustrating a system example to which a service information processing method for a network system according to a first embodiment of the present invention is applied.

FIG. 2 is a flowchart showing an example of a first client processing procedure in the service information processing method of the network system according to the present invention.

FIG. 3 is a flowchart showing an example of a first server processing procedure in the service information processing method for the network system according to the present invention.

FIG. 4 is a block diagram illustrating a system example to which a service information processing method for a network system according to a second embodiment of the present invention is applied.

FIG. 5 is a flowchart showing an example of a second client processing procedure in the service information processing method of the network system according to the present invention.

FIG. 6 is a flowchart showing an example of a second server processing procedure in the service information processing method of the network system according to the present invention.

FIG. 7 is a block diagram illustrating a system configuration to which a service information processing method of a conventional network system is applied.

[Explanation of symbols]

 101 storage device 102 terminal 103 terminal 104 network means

Claims (3)

[Claims] 1. A service information processing method for a network system to which a plurality of terminal devices for processing service information provided from resources connected to a network control means are connected, the service information being provided from one of the terminal devices. A server program is activated in response to a request, the terminal device on which the server program is activated is identified, and the network control means is provisionally registered as a server, and the provisionally registered server is granted an access right to the resource. , Activating a client program stored in the terminal device that issued the service information providing request to start obtaining service information from the resource, and after obtaining the service information,
A network system characterized by notifying the server program of server termination, terminating the server program of the server temporarily registered in the network control means in response to the server termination, and automatically returning the server to the terminal device. Service information processing method. 2. A service information processing method of a network system in which a plurality of terminal devices connected to a network control means communicate with each other via a predetermined network to process service information, and a client activated by any one of the terminal devices. The service information provision request issued according to the program is analyzed, the terminal device that activates the server program is selected and provisionally registered as a server, the terminal device that issued the service information provision request is notified of the server start, and A service information processing method for a network system, characterized in that after the notification is obtained, the server program is terminated and the server is automatically returned to the terminal device according to the termination of the server notified from the client side terminal. 3. A service information processing method of a network system, wherein a plurality of terminal devices connected to a network control means communicate with each other via a predetermined network to process service information, and a client activated by any one of the terminal devices. The service information provision request issued according to the program is analyzed, the terminal device that activates the server program is selected and provisionally registered as a server, the terminal device that issued the service information provision request is notified of the server start, and After the notification is obtained, the client information waiting for the subsequent server is confirmed according to the server termination notified from the client side terminal, and based on the confirmation result, the terminal device which is the next server candidate is selected and a new temporary is selected. From the terminal device that registers and terminates the server to the newly provisionally registered terminal device, A service information processing method for a network system, which inherits the server information, notifies the client of server start to the server waiting, and continuously switches the server destination.