JPS63233445A - Local addition system for internal file name - Google Patents

Abstract

PURPOSE:To use an internal file name only in one TSS command execution program and to prevent an unnecessary internal file name from being left by locally adding a uniform internal file name necessary for file access to an external file name. CONSTITUTION:A TSS command execution program 1 is started by a command inputted by a user and outputs an internal file name adding request to a local addition declaring means 2 in order to a uniform internal filename to an external file name. Receiving the request, the declaring means 2 declares a local type and accesses in internal file name setting means 3. The means 3 executes two checks at the time of processing. In a 1st check, whether a file entry storing the external file name to which the internal file name is to be added is registered in a file managing table 7 or not is checked. When the entry is not registered, abnormality is decided because of the absence of the external file name.

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention provides access to files from a TSS command execution program when developing software or conducting business using TSS commands under a time sharing system. The present invention relates to a method for locally adding an internal file name, which makes it possible to make the internal file name valid only within one TSS command execution program by locally adding the internal file name necessary for the external file name to the external file name.

(Prior art) Generally, an external file name with a large number of characters is used as a file identification name, but when a file is accessed from a TSS command execution program using a TSS command, a user-defined name with a small number of characters is used as a file identification name. Use a valid internal file name. Therefore, when the user adds a unique internal file name to the external file name, the TSS command execution program identifies and accesses the file. Once this internal file name is appended to the external file name, it remains appended until the file is allocated, and the internal file name remains set in the file entry in the file management table. It becomes. The conventional technology employs the global addition method as described above.

(Problems to be Solved by the Invention) In the conventional global addition method of internal file names, in a time sharing system where many TSS command execution programs are used continuously, it is difficult to use multiple TSS commands. When performing a series of tasks, TS
Since the internal file name of the file accessed by the S command execution program remains in the file entry in the file management table, duplication of internal file names with a small number of characters occurs, and a unique internal file name is added to the external file name. The problem is that it cannot be done.

Therefore, there is a need for a means to add an internal file name that is valid only during execution of one TSS command execution program.

(Means for Solving the Problems) The local addition method for internal file names of the present invention includes a local addition declaration means that declares that an internal file name added to an external file name is a local type, and an internal file name 7. internal file name setting means for setting a name to a file entry in a file management table; and local identifier setting means for setting a local identifier to the file entry;
At the end of the TSS command execution program, a file entry detection means searches the file management table to detect a file entry in which a local identifier is set, and an internal file name and an internal file name in the file entry detected by the file entry detection means. and internal file name deletion means for deleting the local identifier.

(Example) An example of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a block diagram of one embodiment of the present invention, in which the TSS
Command execution program 1. Local addition declaration means 2.
Internal file name setting means 3. Local identifier setting means 4
．． File entry detection means 5, internal file name deletion means 6. It consists of a file management table 7.

FIG. 2 is a top view of the file management table.

File entries storing external and internal file names and local identifiers are created when a file is allocated, and are deleted when the file is released.

The TSS command execution program 1 is activated by a command input by the user, and requests the local addition declaration means 2 to add an internal file name in order to add a unique internal file name to the external file name. When the local addition declaration means 2 receives this request, it declares it as a local type and calls the internal file name setting means 3.

During the process, the internal file name setting means 3 performs the following two checks.The first check is whether a file entry storing an external file name to which an internal file name is to be added is registered in the file management table 7. If it is not registered, it is treated as an error because there is no external file name. In the second check, it is checked whether a file entry storing the internal file name to be appended to the external file name is registered in the file management table 7, and if it is registered, the internal file name is duplicated. If no abnormality is detected in the two checks of 9 or more, the internal file name setting means 3 adds the external file name specified by the user to the file entry that stores the external file name specified by the user. Set the internal file name. Furthermore, if an abnormality is detected, the process is aborted and the reason for the abnormality is notified to the TSS command execution program 1.

The local identifier setting means 4 sets a local identifier in the file entry for which the internal file name has been set by the internal file name setting means, and informs the TSS command execution program 1 that the process for the internal file name addition request has been successfully completed. Notify.

At the end of the TSS command execution program 1, the file entry detection means 5 searches the file management table 7, and if a file entry to which a local identifier is set exists, calls the internal file name deletion means 6 and deletes the existence. If not, the process ends.

The internal file name deletion means 6 deletes the internal file name and local identifier in the file entry detected by the file entry detection means 5. Since the external file name is not deleted at this time, the file allocation status continues.

As described above, in the embodiment employing the local addition method of internal file names of the present invention, the internal file name added to the external file name is valid only within one TSS command execution program 1, and then It becomes a local item that is not inherited by the TSS command execution program that is executed.

(Effects of the Invention) As explained above, the present invention adds a unique internal file name necessary for file access to an external file name locally, and uses it only within one TSS command execution program. This has the effect of preventing unnecessary internal file names from remaining and eliminating failures in adding unique internal file names due to duplication of internal file names.

Furthermore, by adopting the present invention, it becomes possible for different TSS command execution programs to use the same internal file name, so that each TSS command execution program can can use independently unique internal file names.

[Brief explanation of drawings]

FIG. 1 is a block diagram of one embodiment of the present invention, and FIG. 2 is a block diagram of an embodiment of the present invention.
FIG. 3 is a configuration diagram of the file management table shown in FIG. 1... TSS command execution program, 2... Local addition declaration means, 3... Internal file name setting means,
4... Local identifier setting means, 5... File entry detection means, 6... Internal file name deletion means, 7
...File management table.

Claims (1)

[Claims] A file management table for managing files assigned to users is provided, and files can be accessed from a TSS command execution program by adding an internal file name to an external file name serving as a file identification name. In a time-sharing system that can perform the following steps, there is provided a local addition declaration means for declaring an internal file name to be added to an external file name as a local type, and an internal file name setting for setting the internal file name to a file entry in the file management table. means for setting a local identifier in a file entry in the file management table; and searching the file management table to detect a file entry to which a local identifier is set when the TSS command execution program ends. A method for locally adding an internal file name, comprising: a file entry detecting means; and an internal file name deleting means for deleting an internal file name and a local identifier in a file entry detected by the file entry detecting means.