JPH0317751A - File controller - Google Patents

Abstract

PURPOSE:To improve the operability of a file system by deciding whether a file to be transcribed can be totally transcribed to a storage area, i.e., the transcribing destination in accordance with the size information added to the attribute information. CONSTITUTION:A CPU 10 stores a file system, in which a file of the transcribing destination serves as a part of constitution, into a real memory 16 from a file server 22 via an Ethernet control part 19. When a transcription operating request is received, the CPU 10 discontinues the transcribing operation as long as the shortage of the memory capacity is decided for the transcribing destination. If the sufficient memory capacity is confirmed, a file to be transcribed is totally transcribed to a directory file of the transcribing destination. Then the value of a partial tree size showing the memory capacity of a file smaller than the working directory file included in the attribute of the directory file is rewritten into the value added with the stored file size. At the same time, a transcribing operation is carried out for addition of the information on the transcribed file name. Then a operation is through.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention has a file server that stores a plurality of files, and stores a predetermined value of each file according to attribute information representing a directory file among the files. The present invention relates to a file management device that manages related structures.

[Conventional technology]

Conventionally, in this type of device, when a file system consisting of a related structure of subtrees such as a directory file and normal files for storing document data and graphic data as shown in Fig. 4 exists, the above-mentioned plurality of files are The attribute information of the directory file to be expressed is stored in a storage means such as a file server, and the user uses a terminal device such as a workstation to call up the target file and copy or delete the file as necessary. was.

If you want to transcribe all files below the file represented by certain attribute information, first select the directory of the file you want to transcribe using the workstation's keyboard, mouse, or other pointing device, and then press the transcribe key. By selecting the directory file to be transcribed, the transcribing operation was performed one by one for each file below the transcribing target file.

[Problem to be solved by the invention]

However, the above device does not check the storage capacity of the free space under the transcription destination directory file, and stores each file one by one after the transcription target file in the free space under the transcription destination directory file. Therefore, even if there is insufficient free space under the directory file at the above posting destination, if the above posting operation is executed and the file cannot be transferred, at that point the above posting operation will be judged as a failure. The transcription operation is interrupted and the operation is completed, which wastes the time spent halfway through the transcription operation, and other operations are delayed by the time of the transcription operation mentioned above, which worsens the operability of the device. There was a problem.

The present invention has been made in view of the above-mentioned problems, and prevents the above-mentioned transcription process from ending in failure due to interrupting the process in the middle of the transcription process for each file one by one after the transcription target file. Efficiently perform transcription processing of each file,
An object of the present invention is to provide a file management device that can improve system operability.

[Means to solve the problem]

The present invention has a storage means such as a file server that stores attribute information of directory files representing files such as directory files and regular files, and a file that manages a predetermined related structure of each file according to the attribute information. In the management device, size information indicating the storage capacity of a directory file having the attribute information or less is added to the attribute information in advance, and an instruction to transfer a file that is less than a predetermined related structure is given by an instruction means such as a keyboard or a mouse; Then, a central processing unit (hereinafter referred to as rCPU) determines whether each entire file below the file to be transcribed can be transcribed to the storage area of the destination file server according to the size information.
It's called J. ), and a transcription means such as a CPU, Ethernet, etc., which transcribes the entire file to be transcribed to a storage area of a file server as a transcription destination according to the determination of the determination means.

[Effect]

Depending on the size information added to the attribute information, the determining means determines whether the entire file to be transcribed can be transcribed to the storage area of the destination file server, and if transcribed is possible,
The transcription means transcribes the file to be transcribed into the storage area of the file server as the transcription destination.

Therefore, the above-mentioned transcription process is not interrupted in the middle of the transcription process, and the file transcription process can be performed efficiently.

〔Example〕

Embodiments of the present invention will be described in detail based on the drawings of FIGS. 1 to 3.

FIG. 1 is a block diagram showing a schematic configuration of a file management device according to the present invention. In the figure, a keyboard/mouse control section 11 inputs and controls various data, commands, etc. from a keyboard 12 and a mouse 13 connected to the keyboard 12. The central processing unit (hereinafter referred to as rCPUJ) 10 performs keyboard/mouse control according to commands manually inputted from the keyboard/mouse control section 11 and corresponding programs.
Mouse control section 11, disk control section 14, display control section 1
5. It controls the Ethernet control unit 19, the communication control unit 23, and other control units and the real memory 16 in a time-sharing manner, and performs predetermined calculations, processing, etc.

The real memory 16 consists of a RAM, and stores an operating program for operating the system, a group of instructions and data manually input from the keyboard 12 or mouse 13, a dictionary file for converting a hierarchical structure, a document file, and a bitmap for displaying each font. Stores part of the data group.

Further, the disk 17 stores data that cannot be stored in the real memory 16, such as conversion dictionary files and document files. The file server 22 also stores directory files, directory files having attribute information representing regular files, and regular files for storing document data and graphic data, and can be shared by multiple users. . The file server 22 has an Ethernet transceiver 2
0 and a local network 21 to an Ethernet control unit 19 of the workstation. Note that data that is not stored in the real memory 16 is read out from the disk 17 or file server 22 and stored in the real memory 16 under the control of the CPUIO as necessary. will be paid. The data structure of a directory file, as shown in Figure 2 (a), includes a content section that describes the contents of the file, a subtree size that indicates the storage capacity of files under the currently used directory, and the name of the file. ,
Creation date, maximum subtree size that the directory file can store, creator, and file type (e.g., if the above file is created with ASCII code, an ASCII file, if it is created with an executable image) In the case of a file that can be interpreted by a printer, an attribute of the file type is ``binary file'' or ``interpress file'' if the file can be interpreted by a printer. It is composed of parts. Note that since a directory file normally does not have the contents of the file as data, there is no data written in the contents section. As shown in Figure 2(b), the data structure of a normal file consists of a content section that describes the contents of the file such as document data and graphic data, a file size that indicates the storage capacity of the file, and a file size section that indicates the storage capacity of the file. Like a directory file, it is composed of items such as file name, creation date, creator, and file type, and an attribute section that describes information indicating the characteristics of the file having the values.

The communication control unit 23 controls communication of the communication boat 24 and executes data communication services between the communication boat 24 and various host computers connected via communication lines (not shown). Data received through the communication service is stored in the real memory 16 under the control of the CPUIO.

Next, the transcription operation of the file management device shown in FIG. 1 will be explained based on the flowchart shown in FIG. 3. In addition, in the above-mentioned transcription operation, the CPUIO has already transferred the transcription destination file from the file server 22 via one Ethernet control unit, as shown in FIG. 4, as part of the configuration.
Assume that a file system is stored in the real memory 16.

In the figure, the user first selects the keyboard 12 or the mouse 1.
3 to select the file to be transcribed from the file list (not shown) displayed on the screen of the display device 18, and press the transcribe key to select the transcribing destination directory.When a transcribing operation request is made, (Step 101)
, CPUIO is the subtree size A (block) that indicates the storage capacity of files under the currently used directory from the attribute information of the directory file at the transcription destination, and the maximum subtree size B that can be stored by the above directory file.
(block), and also obtains the file size C (block) from the attribute information of the transcription target file (step 102). Then, the maximum subtree size B≧A+
It is determined whether it is C (step 103).

Here, if B<A+C, it is determined that the storage capacity of the transcription destination is insufficient, and the transcription operation is canceled (step 104). In addition, in the case of BkA+C, it is determined that the storage capacity of the transfer destination is sufficient for transfer, and the entire file to be transferred is transferred to the transfer destination directory file, and the attribute information of the transfer destination directory file is The value of subtree size A, which indicates the storage capacity of files under the currently used directory, is rewritten to a value that adds the size C of the transferred file, and information on the file name of the transferred file is added. A transcription operation is performed to add (step 105), and the above transcription operation is ended.

Therefore, in the present invention, the entire transcription target file is transcribed based on the subtree size, maximum subtree size, and file size of the transcription target file indicating the storage capacity of files under the currently used directory in the attribute information of the directory file. It is determined whether it is possible to post to the storage area of the destination file server, and if it is, the actual posting operation is performed to transfer the file to be posted to the storage area of the destination file server. This prevents the above-mentioned transcription process from being interrupted, and the file transcription process can be performed efficiently.

〔Effect of the invention〕

As explained above, in the present invention, it is determined whether the entire file to be transferred can be transferred to the destination storage area according to the size information added to the attribute information, and only if it is possible to transfer, the file is stored in the destination storage area. Since the files to be transcribed are transcribed to the area, it is possible to efficiently transcribe each file by preventing the process from being interrupted in the middle of the transcribing process of the transcribing file and ultimately ending in failure. This can improve the operability of the system.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing a schematic structure of a file management device according to the present invention, FIG. 2 is a diagram showing an example of the data structure of a directory file and a normal file, and FIG. 3 is a block diagram showing an example of the data structure of a directory file and a regular file. FIG. 4 is a flowchart for explaining the operation of the transcription process of the file management device, and is a diagram showing an example of the configuration of a file system consisting of a related structure of subtrees. 10...Central processing unit (CPU), 1 1...
・Keyboard/mouse control unit, 12...keyboard,
13...Mouse, 14...Disk control section, 15.
...Display control unit, 16...Real memory, 17...Disk, 18...Display device, one...Ethernet control unit, 2o...Ethernet transceiver, 21...
・Local net, 22...File server, 23・
...Communication control unit, 24...Communication boat.・Noni ゛1'"11'

Claims (1)

[Scope of Claims] A file management device having a storage means for storing attribute information of directory files, and managing a predetermined related structure of each file according to the attribute information, wherein the attribute information has the attribute information. Size information indicating the storage capacity below the directory file is added in advance, and when an instruction to transfer a file below a predetermined related structure is given,
determining means for determining whether the entire file to be transcribed can be transcribed to the storage area of the transcription destination according to the size information; and transcribing the entire file to be transcribed to the storage area of the transcription destination according to the determination of the determination means. A file management device characterized by comprising a transcription means.