JPH02266443A - File control system for file system - Google Patents

Abstract

PURPOSE:To simply access a required directory, file or the like by accessing a target portion based upon a bus name registered in a registering means corresponding to an inputted identification(ID) code. CONSTITUTION:At the time of forming a directory, the bus name of the directory is registered in a file control device 2 correspondingly to the ID code, and when the ID code is inputted to a terminal equipment 1, the directory consisting of the set of files is accessed based upon the bus name corresponding to the ID code. In addition to the directory, a normal file and a specific file can be formed, accessed and delected similarly to the directory. Thus, the objective file, directory or the like are accessed based upon the bus name corresponding to the ID code by inputting the ID code from the terminal or the like.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a file management method for a computer system having a tree-structured file set.

[Conventional technology]

This type of file system has, for example, a tree-structured file set as shown in FIG.
and normal files 64 are connected, and then each directory 67 is connected to each directory 63 through its respective branch.
, each special file 68 and each normal file 69 are connected and further expanded sequentially through lower branches.

Note that a normal file is a collection of documents stored in the file system, a special file is a physical device such as a terminal device or disk memory, and a directory is a collection of files and other directories. For example, it can be created for each user.

Here, "5 tars" for the top level directory 61
When revealing the location of the directory 67 called “hip”, the top level directory 61 called “root”
It is necessary to show a route from ``/user 1'' to the directory 67 ``5tarship'' via the directory 63 ``user 1''.
1 / 5tarsh ip" and the name of the user are displayed. And from the top level directory 61 ' 5t
Access to the directory 67 called "Arship" is performed using the path name "/user1/5tarShll)". Therefore, in order to access desired other directories, files, etc. from the currently located directory, Requires a pathname to indicate relative location.

(Problem to be Solved by the Invention) However, in conventional file systems, in order to access directories, files, etc., it is necessary to specify a path name that indicates the position in the file set. It was necessary to understand the tree structure.Also, this path name tends to become longer as the tree structure of the file set becomes more complex.
It has been desired to realize easy access to desired directories, files, etc.

Therefore, an object of the present invention is to provide a file management method for a file system that allows easy access to desired directories, files, etc.

[Means to solve the problem]

The present invention includes a file identification code management table section for registering a path name indicating the location of a target file, directory, etc. in a file set in correspondence with an identification code, and a terminal for inputting the identification code, The system is characterized in that the target file, directory, etc. is accessed based on the path name registered in the file identification code management table section corresponding to the identification code input by the terminal or the like.

[Operation] According to the present invention, when an identification code is input from a terminal etc.,
A target file, directory, etc. is accessed based on the path name corresponding to this identification code.

〔implementation! J) Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a block diagram showing a first embodiment of a file management system according to the present invention. In the figure, a terminal device 1 is, for example, a workstation, and a file management wave [2
The file system 3 can be accessed through. The file system 3 is a file system managed by an operating system, and has a tree-structured file set as shown in FIG. 7 mentioned above.

Now, for example, “” in the file set shown in Figure 7
5tarShip", the path name indicating the location of the directory 67 relative to the top-level directory 61" / user i /5
Enter tarshipn on the terminal device 1. This path name "/user 1 / 5tarshio" is transmitted from the terminal @ 1 to the user interface section 21 of the file management device 2 , and inputted from there to the file registration section 22 . In response, the file registration unit 22 accesses the file system 3 via the file management table 23 and registers the path name "/use" in the file set.
``5'' in the position corresponding to ``rl/5tarship''
Create a directory 67 called "tarship".

Further, the file registration unit 22 stores the path name ", 'user
1/5tarship'' is registered in the file management table section 23.

The file management table section 23 includes a table 24 having a configuration as shown in FIG. 2, and the path name "/user 1/5tarship" is registered in this table 24. Here, the table 24 has a path name of 1, for example.
Up to 0 path names can be registered, and has an extension indicating whether a new path name can be registered. For example, terminal device 1. If the extension of the table 24 assigned to the user is "o o", a new path name can be registered in the table 24. On the other hand, the extension is “0”
1'', 10 path names have already been registered in this table 24, and no new path name can be registered in this table 24. Therefore, the file registration unit 2
2 is a table 24 in the file management table section 23
After confirming that the extension is "o o", the path name "/user l/5" is added to the table 24.
tarShil)'. If the extension of the existing table 24 is 01, a new table 24 is created in the file management table section 23, and the file registration section 22 adds the path name "/unse" to the new table 24.
r 1 /5tarship". Here, the first created table 24 has the table name "T 8
L 1 ", and the table 24 created second is given the table name "TBL2" so that the tables created sequentially can be identified.

The table 24 also includes file end offset data DF indicating the end of the table 24, and file end offset data DF indicating the end of the table 24.
Each entry offset data DE1 to DE1o indicating the search position of each of the 10 path names in , path name length data DL indicating the length of the path name, and path name data DP indicating the path name are registered. Ru. here,
When one path name is registered as path name data DP in any part of each entry offset data DE1 to DE1o, the search position of the path name, that is, the path name length data OL immediately before the path name data DP. The search position of is registered, and each entry offset data DE1 to D
The code string "o o o o" is registered in the part of E1o in which no search position is registered.

Therefore, there is a correspondence relationship between the path name data DP indicating the path name and the entry offset data DE indicating the search position of the path name. Further, the path name data DP is added together with the path name length data DL each time a path name is registered, and for this reason, the contents of the file end offset data DF are changed each time a path name is additionally registered.

Now, the file registration section 22 uses the path name '/userl'.
/5tarship' is registered in table 24,
The table name of the table 24 indicating the search position of the path name "/userl/5tarshil)" and the identification code corresponding to the entry offset data DE are transmitted to the terminal device 1 via the user interface section 21. Terminal device 1 displays this identification code and uses it as a path name.
The user is notified that "userl/5tarship" has been registered in correspondence with the identification code.

FIG. 3 shows the correspondence between the table name and entry offset data DE of the table 24 and the identification code. For example, each entry offset data DE1 to D E +o in the table with the table name "T811"
and each identification code 1 to 10 correspond to each other, and each entry offset data DE1 to D E +o and each identification code 1 in the table with the table name ``TBL2'' correspond to each other.
1 to 20 correspond to each other, and the table name is the same below.
Each entry offset data DE1.DE2, . . . in the table of TBL(n+1)'', DE+o and each identification code n1, n2. ..., (n+1)O correspond to each other.

Therefore, when creating the directory 67 "5tarship" shown in FIG. 7, the path name indicating the location of the directory 67 in the file set is "/".
1Iser 1/5tarShiD" is registered in the table 24 of the file management table section 23, and the terminal device 1 notifies the user of an identification code indicating the search position of the path name.

Next, "5tar" in the already registered file set
When accessing the directory 67 called "Ship", the identification code previously notified to the user is input to the terminal device 1.
Enter it at . This identification code is transmitted from the terminal device 1 to the user interface section 21 of the file management device t2, and inputted from there to the identification code path name conversion section 25. In response to this, the identification code path name conversion section 25 searches the table 24 in the file management table section 23 based on the identification code. That is, the path name length data DL and the path name length data DL are obtained from the table name of the table 24 corresponding to the identification code and the search position indicated by the entry offset data DE.
The path name data DP of the data length indicated by is read. This path name data DP is the path name "/user1/
5tarship'', and the identification code path name converter 2
5 to the terminal device 1 via the user interface section 21.
, and this terminal device 1 uses the path name "/use
r 1/5 tarship" is displayed. Also,
The path name data DP, that is, the path name” / user 1
/5tarship” is the file management table section 2
3 to the file system 3, thereby creating a directory 6 called "5tarship" at the location indicated by the pathname "/user1/5tarShil)".
7 is accessed.

Therefore, if you specify the identification code notified when creating the directory 67 called "5tarship", the path name "/userl/5tar" based on this identification code will be created.
'ship' is read from the file management table section 23, this path name is transmitted to the terminal device 1, and the '5tars' in the file set is read based on the path name.
The directory 67 called "hip" is accessed. Therefore, without specifying a long path name, the directory at the position indicated by the path name in the file set can be accessed by simply specifying a simple identification code. .

Next, "5ta" in the already registered file set
When deleting the directory 67 named "rsh i p", the terminal device 1 instructs the file management device 8 to delete the path name based on the identification code notified to the user first.The file management device 2 is received by the file deletion unit 26 via the user interface unit 21, and in response, the file deletion unit 26 deletes table 2/2 in the file management table unit 23 based on the identification code.
Search for I. As a result, the path name length data OL and the path name data OP are read from the search position indicated by the table name and entry offset data DE of the table 24 corresponding to the identification code, and the file deletion unit 26 reads the path name data DP, that is, the path name data OP. name”/us
"" 5tarship in the file set corresponding to the position indicated by "er'l /5tarship"
Instructs the file system 3 via the file management table section 23 to delete the directory 67 named "p".In response, the path name "'/USer 1/5tar is deleted.
"5tarship" at the position indicated by "ship"
” is deleted from the file system 3.Furthermore, the file deletion unit 26 changes the contents of the entry offset data DE to the code string “oooo”.

In this way, in the above embodiment, when a directory is created, the path name of the directory is registered in the file management device e12 in correspondence with the identification code, and when the identification code is then inputted on the terminal device 1, the path name of the directory is registered in the file management device e12 in correspondence with the identification code. The directories in the file set are accessed based on the path name. In addition to directories, create regular files and special files in the same way as directories.
Can be accessed and deleted.

Figure 4 shows the second file management system to which the file management method according to the present invention is applied.
An example of this is shown. In the same figure, user hardware 3
1 corresponds to the terminal@box 1 and the file management device 2 shown in FIG. Further, as file systems, a first file system 32 and a second file system 33 each having a file set are provided.

Therefore, in the user hardware 31, the path names indicating the locations of directories, files, etc. in the file set of the first file system 32 and the second file system 33 are stored.
The first and second file systems 32 . 33
I am trying to choose one of them. for example,
If "10" is added to the beginning of the identification code, it is assumed that the identification code corresponds to a path name indicating the location of a directory, file, etc. in the file set of the first file system 32.

On the other hand, if "20" is added to the beginning of the identification code, it is assumed that the identification code corresponds to a path name indicating the position of a directory, file, etc. in the file set of the second file system 33. And at the beginning Pa 10''
A path name indicating the location of the directory, file, etc. in the file set of the first file system 32 is registered in correspondence with the identification code appended with '20' at the beginning.
A path name indicating the location of a directory, file, etc. in the file set of the second file system 33 is registered in correspondence with the identification code to which is added. As a result, when the user hardware 31 specifies an identification code with 10'' added to the beginning, the directory, file, etc. indicated by the path name corresponding to the identification code is accessed from the first file system 32. In addition, user hardware 31
When an identification code with "20" added to the beginning is specified, the directory, file, etc. indicated by the path name corresponding to the Kl-specific code is accessed from the second file system 33.

Therefore, in this embodiment, directories, files, etc. in either of the two file sets can be accessed simply by specifying the identification code. In addition, when managing three or more file sets, it is sufficient to set respective identification codes that can distinguish each file set.

FIG. 5 shows a third example to which the file management method according to the present invention is applied.
An example of this is shown. In the figure, a file system 41 is provided with a first disk memory 42 and a second disk memory 43 that are managed by the file system 41, and the first disk memory 42 and the second disk memory 43 each store a set of files. have.

Therefore, the user's hardware 31 stores the first disk memo υ
The path name used in the file set of 42 and the path name used in the file set of the second disk memory 43 are distinguished from each other. Either one of the first and second disk memories 42, 43 is selected. For example, the first disk memory 42
' at the beginning of the identification code corresponding to the path name used in
30" is added to register the path name and the identification code. On the other hand, "40" is added to the beginning of the identification code corresponding to the path name used in the second disk memory 43 to register the path name. and the identification code is registered.As a result, when the user hardware 31 specifies the identification code with "'30" added at the beginning, the directory, file, etc. indicated by the path name corresponding to the identification code is stored in the first directory. It is accessed from the disk memory 42. Also, the data is accessed from the disk memory 42.
When the identification code with "" added thereto is specified, the directory, file, etc. indicated by the path name corresponding to the identification code is accessed from the second disk memory 43.

Therefore, in this embodiment, directories, files, etc. in either of the two disk memories can be accessed simply by specifying the identification code. Note that when three or more disk memories are provided, an identification code may be set for each disk memory so that each disk memory can be distinguished.

FIG. 6 shows a fourth example to which the file management method according to the present invention is applied.
An example of this is shown. In this example, the second
It is constructed by combining the embodiment and the third embodiment,
A first file system 51 and a second file system 52 are provided, and the first file system 51 is provided with a first disk memory 53 and a second disk memory 5-4 each having a file set. ing.

For this reason, the user hardware 31 distinguishes between a first disk memory 53 in the first file system 51, a second disk memory 53 in the first file system 51, and a second file system 52. For example, "50" is added to the beginning of the identification code corresponding to the path name used in the first disk memory 53, and the path name and the identification g+1 code are registered. Further, '60'' is added to the beginning of the identification code corresponding to the path name used in the second disk memory 54, and the path name and the identification code are registered. ``70'' is added to the beginning of the identification code corresponding to the path name, and the path name and identification code are registered.

Therefore, in this embodiment, by simply instructing the identification code on the user hardware 31, the first disk memory 5
3. Select one of the file sets from the second disk memory 54 and the second file system 52,
Disks, files, etc. in the selected file set can be accessed.

(Effect of R-mei) According to Kokumei, when you enter the identification code from a terminal, etc.
Since the target file, directory, etc. is accessed based on the path name corresponding to this identification code, it is possible to provide a file management method for a file system that allows access to desired directories, files, etc. .

[Brief explanation of drawings]

FIG. 1 is a block diagram showing a first embodiment of the file management system according to the present invention, FIG. 2 is a diagram showing the structure of a table in the file management table section shown in FIG. 1, and FIG. FIG. 4 is a block diagram showing the second embodiment of the file management system according to the present invention, and FIG. FIG. 6 is a block diagram showing a third embodiment of the file management method according to the present invention, FIG. 6 is a block diagram showing a fourth embodiment of the file management method according to the present invention, and FIG. FIG. 1...Terminal device, 2...File management device, 3...
- File system, 21... User interface section, 22... File registration section, 23... File management table section, 24... Table, 25... Identification code path name conversion section, 26... File deletion section, 31.
...User hardware, 32.51...First file system, 33.52...Second file system, 4
1... File system, 4.2.53... First disk memory, 43.54... Second disk memory.

Claims (1)

[Claims] In a file system that has a tree-structured file set that is sequentially expanded from a higher branch to a lower branch and accesses a target part in this file set, a path name indicating the target part is identified. a registration means for registering in correspondence with a code; an input means for inputting the identification code; and the target region is selected based on a path name registered in the registration means corresponding to the identification code inputted by the input means. A file management method for a file system that has a means of accessing it.