JPH09282216A - Client server system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the efficiency of file utilization by making a file server inform the open request origin client and in-use client of a file of file conditions and close urge. SOLUTION: The file server 2 and the clients 3 are respectively provided with file condition informing parts 22 and 32, and when an open/close request is presented to the shared file 21 of the file server 2, the file condition informing part 32 of the client 3 informs the file server 2 of the request. The file condition informing part 22 of the file server 2 refers to the request and the conditions of the file and informs the client 3 while utilizing the file of the close request and the request origin client 3 of the file conditions. The respective request origin and in-use clients 3 convert the file conditions and the close request to messages and display and output them on a monitor 34.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a client server system, and in particular, a file server responds to a file open request by issuing a file close request to a client who is using the file and notifying a file status to an open request source client Regarding the system.

[0002]

2. Description of the Related Art When a client edits a shared file on a network and the shared file is already opened by another client, the requesting client cannot open the file until the file is closed. . In such a case, since the requesting client cannot know who is using the file, it does not know the timing at which the file can be obtained and the editing work is performed, and the editing work is hindered. It was

According to Japanese Patent Laid-Open No. 5-241765,
The requesting client is notified of the name of the user client who has opened the shared file, and the icon can be displayed according to the status of the file (resource).
The requesting client can know that the shared file has already been opened by the icon display. If the open status of the file is known, the request source client can request the user client to close the file and start editing. However, in this publication, there is no means for making a file close request to a client, even if the client can know that another client has already opened the file to be edited. Therefore, especially when the requesting client and the client being used are located apart from each other, the requesting client is troublesome to contact the user.

[0004]

When a client makes an open request for a file to be edited, the file server notifies the client of the status of the file and closes the file to other clients that have already opened the file. Is requested and when the file is closed, the requesting client is notified that the file can be edited.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to reduce unnecessary time and man-hours caused by waiting for a file open by letting a file server notify a file open request source client of a file status and a timing when the file becomes available. It is in.

Therefore, when the client of the present invention requests the file server to open a shared file,
The file server has a file status notification unit that notifies the client of the status of the shared file, and the client has a file status notification unit that outputs the status of the shared file based on the notification. In the client server system, the file status notifying unit of the file server includes a file control unit that controls opening / closing of the shared file, and an information acquisition unit that acquires a request to open / close the shared file from the client. An information storage unit that stores a file status including a name of a client who is using the shared file and an open / closed state, and refers to the file status in response to the open / close request, and responds to the requesting client with the file status. And the requested shared file is open When the shared file close request is sent to the client in use, and when the shared file is in the closed state, the status determiner that responds to the requesting client with the closed state, and the response from the status determiner And an information notifying unit for notifying the client of the file status notification unit for notifying the file server of an application open / close request for a shared file, and the open / close request An information acquisition unit that acquires a notification of the file server for the file, a status determination unit that determines the status of the shared file based on the notification, and an information display unit that converts the determination result into a message and outputs the message for display on a monitor. And are provided.

When an open command is issued to the shared file from the client application, the client notifies the file server of the open request.
The file server inquires about the open request file and the status of the file stored in the information storage means. If the file has already been opened, the file server notifies the client that has already opened the file of the file close request and the file open request source client of the file status by the information notifying means.

The file open request source and the client using the file are identified by the means for judging the file status based on the respective acquired notifications, and displayed and output as a message on the monitor.

The message displayed and output on the monitor allows the client requesting to open the file to know who is already using the file. In addition, it is possible to notify a client who has already opened a file and is using the file that another user is trying to use the file, and urge closing of the file. The file status can be notified and grasped in a timely manner among the clients sharing the file.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings.

Referring to FIG. 1 showing an embodiment of the present invention, a client / server system 1 includes a file server 2 having a shared file, a plurality of clients 3 for accessing the shared file to edit the file, and a file. A network 4 connecting the server 2 and the client 3 is provided. The file server 2 manages the shared file 21 that stores the shared file, the shared file 21, and a file status notification unit 22 that notifies the client 3 of a file close request and a file status, and a client server system on the network 4. And a network OS 23 that operates. Also client 3
Indicates an application 31 requesting to open or close the shared file 21, a file status notifying unit 32 for judging the file status notified from the file server 2, a network OS 33 for controlling the client server system 1, and a file status. A monitor 34 for displaying and outputting a message.

File status notification unit 2 of file server 2
2 and FIG. 2 showing the configuration of the file status notification unit 32 of the client 3. The file status notification unit 22 is a file control unit 221 that controls opening / closing of the shared file 21, an open / close status of each file of the shared file 21, and an information storage unit that stores the in-use client 3 and the open request client 3. Two
24, the information acquisition unit 223 that acquires an open request from the client 3, and the information storage unit 224 based on the open request to notify the requester of the file status, and when the requested file is in the open status, the file A status determination unit 222 that makes a close request to the in-use client 3 and notifies the request source client 3 of the closed status when the requested file is closed, and an information notification unit that notifies the request source client 3 of the close request and the file status. 225 and.

The file status notifying section 32 of the client 3
Is an information notification unit 324 that notifies the file server 2 of an open / close request for the shared file 21 of the application 31, an information acquisition unit 321 that acquires a close notification or a close request or file status from the file server 2, and the status. And a status judgment unit 322 for converting the message into a message corresponding to a close notification, a close request, or an open status, and an information display unit 32 for displaying and outputting the message on the monitor 34.
3 and.

Next, referring to FIG. 5 exemplifying the display output obtained by converting the file status notification into a message, the operation of the file status notification unit 32 and the file status notification unit 22 will be illustrated when the application 31 makes a file open request. A description will be given according to the flowchart of FIG. When the application 31 makes an open request to the shared file 21, the information notifying unit 324 causes the file status notifying unit 22 to
The request is notified to the information acquisition unit 223 (step 10).
2). The file status notification unit 22 acquires the request by the information acquisition unit 223 (step 103), analyzes the request, and inquires the file status of the shared file 21 held in the information storage unit 224 (step 104). As a result of the inquiry, when the shared file 21 is not opened (N in step 105), the open request for the shared file 21 is stored in the information storage unit 224 (step 106), and the shared file 21 is opened by the file control unit 221. (Step 107). When the shared file 21 is already opened (Y in step 105), the open request client name is stored in the information storage unit 224 (step 108), and the information notification unit 225 opens the shared file 21. The middle client 3 is notified of the close request (step 109), and the file status notification unit 32 of the open request source client 3 is notified of the file status (step 110). Shared file 21
On the other hand, the file status notification unit 32 of the open request source client 3 acquires the closed status of the file by the information acquisition unit 321 (step 111), determines that the shared file 21 for which the open request is made is already open, and 5
The information display unit 323 displays and outputs the message 51 shown in (1) to the monitor 34 (step 112). The file status notification unit 32 of the client 3 in use who has already opened the shared file 21
Acquires a close request by the information acquisition unit 321 (step 113), determines that it is a reminder of the acquired close request, converts it to a message 52 by the information display unit 19 and outputs it to the monitor 34 for display (step). 114).

Next, the operation of the file status notifying unit 22 and the file status notifying unit 32 when the application 31 issues a close request to the already-open shared file 21 will be described with reference to the flowchart of FIG. When the application 31 issues a close request to the already-open shared file 21, the information notifying unit 324 notifies the file status notifying unit 22 of the close request (step 202). File status notification section 2
2 acquires the close request by the information acquisition unit 223 (step 203), and closes the shared file 21 by the file control unit 221 (step 204). The file status of the information storage unit 224 is inquired about the acquired close request (step 205), and it is judged whether or not there is an open request for the shared file 21 (step 20).
6) If there is no such request (N in step 201), the file status regarding the shared file 21 is deleted from the information storage unit 224 (step 207). When there is an open request for the shared file 21 (Y in step 206),
File status notification unit 3 of the open request source client 3
2 is notified of the file status (step 208), the file status related to the shared file 21 of the close request is deleted from the information storage unit 224 (step 209). The file status notification unit 32 of the open request source client 3 for the shared file 21 acquires the file status notification by the information acquisition unit 321 (step 210), converts the file closed status notification into the message 53, The information display unit 323 displays and outputs it on the monitor 34 (step 211).

According to the above description, in this embodiment, when the shared file 21 shared by a plurality of clients is used,
The file status can be displayed and output as a message on the monitor 34 of the in-use client 3 that has already opened the file 21 and the monitor 34 of the client 3 that has requested to open the file.

[0017]

As described above, according to the present invention, the file open request source client grasps the file status and prompts the client who is using the file for a file close request, thereby wasting a file waiting time. Can be omitted, and the file can be used efficiently.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a client server system of the present invention.

FIG. 2 is a diagram showing a configuration of a file status notification unit in FIG.

FIG. 3 is a flowchart showing an operation of a file status notification unit when an application executes a file open request in the embodiment of FIG.

FIG. 4 is a flowchart showing an operation of a file status notification unit when an application executes a file close request in the embodiment of FIG.

FIG. 5 is a diagram illustrating a message indicating a file status displayed on the monitor of FIG.

[Explanation of symbols]

 1 Client Server System 2 File Server 3 Client 4 Network 21 Shared File 22 File Status Notification Unit 23 Network OS 31 Application 32 File Status Notification Unit 33 Network OS 34 Monitor 221 File Control Unit 222 Status Judgment Unit 223 Information Acquisition Unit 224 Information Storage Unit 225 information notification unit 321 information acquisition unit 322 status determination unit 323 information display unit 324 information notification unit

Claims (1)

[Claims] 1. When a client requests a file server to open a shared file, the file server has a file status notification unit for notifying the client of the status of the shared file, and the client is based on the notification. A file status notification unit for displaying and outputting the status of the shared file, wherein the file status notification unit of the file server is a file control unit for controlling opening / closing of the shared file. An information acquisition unit that acquires an open / close request for a shared file from the client; an information storage unit that stores a file status including the name of the client that is using the shared file and the open / closed state; File form for request When the shared file of the request is opened and the shared file of the request is in the open state, the request for closing the shared file is returned to the client in use and the shared file is in the closed state. A status determination unit that responds to the requesting client with a closed state; and an information notification unit that notifies the client of the response from the status determination unit. The file status notification unit of the client is an application for a shared file. An information notification unit that notifies the file server of an open / close request, an information acquisition unit that acquires a notification of the file server for the open / close request, and a status determination that determines the status of the shared file based on the notification Part, and the judgment result is converted into a message and displayed on the monitor. Client-server system characterized by being provided with an information display unit which shows output, a.