JPH07107679B2 - Message communication control method between client and server - Google Patents

Description

DETAILED DESCRIPTION [Outline] A message communication control method between a client requesting a service and a server providing a service, the control of selective reception is performed for the purpose of reducing the processing load of the client and the server. The kernel that generates the screening ID and notifies the client when the client sends a request message with the reply destination information specified
Registers the reply destination information specified in the reply destination information management unit in association with the ID generation mechanism and the specified reply destination information, and notifies the server of the registered address information. When the mechanism and the server specify the registered address information and send a reply message, the corresponding selection of the reply destination information management unit to the reply message
A selection ID expansion mechanism that expands the ID is provided, and the service request source client receives the reply message according to the selection ID expanded by the selection ID expansion mechanism and the selection ID generated by the selection ID generation mechanism. To do.

[Industrial application field]

The present invention relates to a message communication control method between a client that requests a service and a server that provides the service,
In particular, the present invention relates to a message communication control method between a client and a server that can reduce the processing load on the client and the server for message communication.

The client that requests the service and the server that provides the service execute the process of requesting and providing the service according to the message. In the data processing system having such a configuration, the interface between the client and the server is simplified so that the processing load of the client and the server for message communication can be reduced. There is a need.

[Conventional technology]

FIG. 4 illustrates a client / server model. As shown in this figure, the client requests the server to provide the service by sending a request message, and the server executes a predetermined service in response to the request message and also performs the service according to the reply message. Process to send the execution result of to the client. In such message communication, it is necessary to execute selective reception control so that the execution result of the service requested by the client can be correctly received.

Next, referring to FIG. 5, a conventional technique of this selective reception will be described.

The client informs the server in advance of an index associated with its own destination information. This index is associated with the destination information of the client according to the kernel (a core program provided protected from general programs). Will be done.

Subsequently, when requesting a service to the server, the client determines a selection ID for identifying the service request, adds the determined selection ID to the request message, and notifies the server of the selection message. Sort ID notified
Is specified to process to wait for the reply message from the server. On the other hand, when the server receives the request message to which the selection ID is added from the client, it executes the service process corresponding to the request message. Next, the server uses the attached selection ID to specify the selection ID for displaying which request message is the response, and sends the index notified in advance to the reply destination. It is used as information to notify the service result by sending a reply message to the client.

Then, the kernel compares the screening ID specified by the client for selective reception with the screening ID specified by the server for reply, and when it judges that these two screening IDs match, it waits for the waiting client. By executing the processing for receiving the reply message from the server, the processing for realizing the selective reception control is performed.

[Problems to be Solved by the Invention]

However, in such a conventional technique, although there is only one service response to one service request, in order to control selective reception of the reply message,
There is a problem that the client and the server have to determine and control the selection ID as an interface between the client and the server. Then, there is a problem that it is necessary to send and receive the destination information for reply by itself and manage it. Therefore, there is a problem that the processing load of the client and the server for message communication becomes large.

The present invention has been made in view of the above circumstances, and by preventing the client and the server from controlling the interface between the client and the server, the processing load between the client and the server is reduced. It is intended to provide a message communication control system.

[Means for Solving the Problems]

 FIG. 1 is a block diagram showing the principle of the present invention.

In the figure, 1 is one or a plurality of clients, which are programs that request services, 2 is a server, which is a program that provides services, 3 is a kernel, which is a client 1. The control of message communication between the servers 2 is executed. The kernel 3 of the present invention includes a selection ID generation mechanism 30, a reply destination information registration mechanism 31, a reply destination information management unit 32, and a selection ID expansion mechanism 33.
And a selective reception mechanism 34. This identification ID generation mechanism 30
Processes to generate a screening ID and notify the client 1 of the generated screening ID when the client 1 sends a service request message to the server 2 by designating reply destination information. When the server 2 receives the request message, the reply destination information registration mechanism 31 associates the specified reply destination information with the generated selection ID and registers them in the reply destination information management unit 32. , The address information of the registration is notified to the server 2, and the reply destination information management unit 32 pairs the reply destination information and the identification ID registered by the reply destination information registration mechanism 31. When the server 2 specifies the address information registered in the reply destination information management unit 32 and sends a reply message as a service response, the selection message expanding mechanism 33 manages the reply message. Processing to expand the corresponding selection ID of the reply destination information management unit 32 to the selection reception mechanism 34
Controls the client 1 of the service request source to receive the corresponding reply message sent from the server 2.

[Action]

According to the present invention, when the client 1 specifies the reply destination information and transmits the request message to the server 2, the selection ID generation mechanism 30 assigns one unique selection ID to the request message. Client 1 that generated the selection ID and issued the request message
To notify. When the notification of the screening ID is received, the client 1 processes the received screening ID so as to have the reply message from the server by designating the screening ID as the screening ID for the screening reception request. Then, the reply destination information registration mechanism 31
When the server 2 receives the request message, the registered reply address information and the generated selection ID are associated with each other and registered in the reply address information management unit 32, and the registered address information is registered in the server. Notify 2.

On the other hand, when the server 2 receives the request message, the server 2 executes the requested service process, and then specifies the notified address information registered in the reply destination information management section 32 to request the client. The destination information for No. 1 is designated, and the execution result is sent to the requesting client 1 as a reply message. At the time of transmitting this reply message, the screening ID expansion mechanism 33 adds the screening ID corresponding to the reply message by expanding the corresponding screening ID of the reply destination information management unit 32 into the reply message.

Then, when the client 1 of the service request source designates the screening ID to make the screening reception request, the screening reception mechanism 34 determines the screening ID of the screening reception request and the screening ID added to the reply message. Specified sorting by comparing
It is determined whether or not the reply message having the ID has arrived, and the client 1 as the service request source is controlled to receive the correct reply message.

Thus, according to the present invention, the client 1 and the server 2
Can receive the message selective reception service from the kernel 3 without controlling the selective ID and the reply destination information.

〔Example〕

 Hereinafter, the present invention will be described in detail according to examples.

As described in FIG. 1, the kernel 3 of the present invention, in addition to the selective reception mechanism 34, the selective ID generation mechanism 30, the reply destination information registration mechanism 31, the reply destination information management unit 32, and the selective operation.
And an ID expansion mechanism 33. That is, the conventional kernel only has the selective reception mechanism 34 in addition to managing the destination information of the client 1 according to the index, whereas the kernel 3 of the present invention is
Further, a selection ID generation mechanism 30 and a reply destination information registration mechanism 31
And a reply destination information management unit 32 and a selection ID expansion mechanism 33.

Next, the operation processing of the present invention will be described in detail with reference to the flowchart shown in FIG.

The client 1 sends a request message to the server 2 when it needs to receive the service from the server 2. At this time, the client 1 notifies the kernel 3 of its own address information, which is the destination information for reply, as shown in. Since the kernel 3 of the present invention also manages the address information of each client 1 according to the index as in the conventional kernel, the notification processing of the reply destination information is also executed according to the index.

In this way, when the request message is transmitted, the screening ID generation mechanism 30 of the kernel 3 first creates one unique screening ID corresponding to this request message as shown in, and then As shown in, the generated selection ID is notified to the client 1 that issued the request message. Then, the client 1 that issued the request message selects the generated selection ID as shown in
It will be notified from the generation mechanism 30.

Then, the reply destination information registration mechanism 31 of the kernel 3 first associates the reply destination information from the client 1 with the generated selection ID, as shown in, and returns the reply destination information management unit. Register at 32. By this process, as shown in FIG. 3, the reply destination information and the selection ID are registered in the reply destination information management unit 32 as a pair. Next, the reply destination information registration mechanism 31 registers the registered reply destination information management unit 32 with respect to the server 2 as indicated by.
The index indicating the registered address information of is notified.

In this way, the server 2, when receiving the request message from the client 1, also receives the index indicating the registered address information of the reply destination information management unit 32, as shown in. Next, the server 2 executes the service process for the request message as shown in, and then sends the service result to the client 1 by the reply message as shown in. At this time, the index of the notified registered address information of the reply destination information management unit 32 is designated as the destination of the reply message.

When the reply message is transmitted from the server 2, the screening ID expansion mechanism 33 of the kernel 3 specifies the screening ID by searching the reply destination information management unit 32 according to the specified index as shown in , The specified selection ID is expanded to the reply message.

On the other hand, the client 1 that issued the request message
As shown in, the selection ID received from the selection ID generation mechanism 30 is designated as the selection ID for the selection reception request, and the selection reception request is received to receive the response to the request message. The selection receiving mechanism 34 of 3
As shown in FIG. 5, the reply message arriving at the client 1 is searched, and if there is a reply message having the same screening ID as the screening ID of the screening reception request, the reply message is requested for screening reception. When there is no reply message having the same screening ID as the screening ID of the screening reception request, the client 1 is provided with the screening message to execute the screening reception service.

As described above, in the present invention, the selection ID is controlled according to the process of the kernel 3, whereby the communication control of the message between the client and the server is executed.

Although the illustrated embodiment has been described, the present invention is not limited to this. For example, the number of clients 1 is not limited to one, and a plurality of clients 1 can be applied as they are.

〔The invention's effect〕

As described above, according to the present invention, the client 1
As a result, the server 2 can simplify the management of the reply destination information, and can receive the message identification and reception service from the kernel 3 without controlling the selection ID. From now on, the processing load on the client 1 and the server 2 can be greatly reduced.

[Brief description of drawings]

FIG. 1 is a block diagram of the principle of the present invention, FIG. 2 is a flowchart executed by the present invention, FIG. 3 is an explanatory diagram of a data structure of a reply destination information management unit, and FIG. 4 is an explanatory diagram of a client / server model. FIG. 5 is an explanatory diagram of a prior art of selective reception. In the figure, 1 is a client, 2 is a server, 3 is a kernel,
30 is a selection ID generation mechanism, 31 is a reply destination information registration mechanism, 32
Is a reply destination information management unit, 33 is a selection ID expansion mechanism, and 34 selection reception mechanism.

Claims (1)

[Claims] 1. One or more clients requesting a service according to a request message, a server that executes a predetermined service and provides a service result to the client according to a reply message, and a selection ID that identifies the request message. And a kernel for controlling the client of the service request source to receive the corresponding reply message according to the above, when the client sends the request message by specifying the reply destination information. , A unique sorting ID and a sorting ID generation mechanism (30) for notifying the generated sorting ID to the client, and when the server receives the request message, the destination information for reply specified is generated. Registered in the reply destination information management section (32) in association with the selected ID. A reply destination information registration mechanism (31) which records the registered address information to the server and sends a reply message when the server specifies the registered address information and sends the reply message. A sorting ID expanding mechanism (33) for expanding the corresponding sorting ID of the reply destination information management unit (32) in the message for sorting, the sorting ID expanded by the sorting ID expanding mechanism (33), and the above sorting A message communication control method between the client and the server, characterized in that the client of the service request source is controlled to receive the corresponding reply message according to the selection ID generated by the ID generation mechanism (30).