JPS6150356B2 - - Google Patents

Description

[Detailed Description of the Invention] (1) Technical Field of the Invention The present invention relates to a TSS (Time Sharing System) conversational data processing system.
Regarding the file processing method for simultaneous use of common data files, in particular,
This paper relates to a common data file access processing method when the same job is processed simultaneously from multiple conversation terminals using IDs.

(2) Technical background In a TSS conversational data processing system, the same user ID (identification code) is stored in the same place.
In some cases, multiple TSS conversation terminals with .

In such cases, you may want to simultaneously perform processing using shared programs and data managed within the system, such as compilers, debugging routines, tables, and various recording files, from multiple conversation terminals. Occurs often.

In this way, when simultaneous parallel processing of the same job by the same user ID is required, file variables can be used independently in the program work area set in the system for each terminal. ing.

However, with regard to file data, only one user terminal at a time is allowed to use it due to problems with synchronization management and file protection caused by updates.

Therefore, the same user can
If the same job is started at the same time and the file is accessed by ID, while the terminal that started the job earliest occupies the file, the other two
Terminals that were activated after the th time either went into a waiting state or were forcibly terminated, which had the disadvantage that smooth conversation with the computer was not possible.

(3) Purpose of the Invention The purpose of the present invention is to enable a TSS conversation processing system to allow each terminal to converse with almost no waiting time when the same job is processed simultaneously from multiple different terminals using the same user ID. The objective is to provide an efficient file processing method that allows progress.

(4) Structure of the Invention The present invention provides a method for temporarily copying data files for each terminal in a TSS conversation processing system so that the same job can be executed simultaneously from multiple different terminals using the same user ID. It is intended to be constructed in the following manner.

The present invention has a configuration in which, in a TSS conversational data processing system having a central processing unit, a main memory, an auxiliary storage device, and a plurality of conversational terminal devices, common data can be retrieved from different terminal devices using the same user identification code. means for creating a file name by concatenating the logical number of each of the plurality of terminal devices and a file variable name defined in the program of the job, in order to simultaneously process the same job using the file; and means for creating a plurality of temporary files that are copies of the common data file in accordance with the file name assigned to the terminal device, so that jobs for each of the terminal devices are executed using the corresponding temporary files. It is characterized by:

(5) Examples of the invention The present invention will be described below using examples.

FIG. 1 is a schematic diagram of a TSS conversation processing system according to an embodiment of the present invention.

In the same figure, 1, 1', 1'' are the same user
It shows n TSS conversation terminal devices with IDs, and machine numbers (equipment logical numbers) #1, #2, #n are given to each device. A central processing unit 2 includes a communication control section 3, a job control section 4, and a file processing section 5. The communication control unit 3 manages sessions from LOGON to LOGOFF, sets buffer areas, organizes various resources, calls job programs, and manages communication between jobs and devices such as terminals. The job control unit 4 analyzes the input command, and under the monitor (OS),
Execute job processing.

The file processing unit 5 is a component with which the present invention is particularly relevant; when opening a file necessary for executing a job, it copies a common data file and uses the variable name defined in the program and the job name. It is set in the auxiliary storage area as a temporary file with a name concatenated with the machine number of the requested conversation terminal, and when the file is closed after the processing is completed, if any data is updated (added or deleted) to the temporary file. For example, the temporary file is returned to the common data file, the common data file is updated, and if there is no update, the temporary file is discarded.

Next, 6 is a main memory, which has its own program areas 6a and 6 for job processing for each terminal.
b,...6n are provided. These program areas include a work area and a buffer area,
In actual main memory, data is swapped one after another for TSS time slicing processing. Also,
7 is an auxiliary storage file that includes a user program storage file and a temporary file, and 8 is a common data file.

FIG. 2 is an explanatory diagram of a common data file processing method in the embodiment system of FIG. 1.

In the same figure, 1, 1', 1'', 6, 6a to 6
n and 8 correspond to the same reference numerals in FIG.

Reference numeral 9 indicates an auxiliary storage area, which includes a common data file 8, a program storage file 10, and temporary files 11 to 13 constructed according to the present invention.

The program storage file 10 contains a program called by the user's private user ID.
JOB1, JOB2, JOB3,... and a common monitor program are stored.

When conversation terminals 1, 1', and 1'' with machine numbers #1, #2, and #n with the same user ID log on at the same time and request processing using the same JOB1 program, the program for each terminal is Area 6
a, 6b, and 6n are set, and the JOB1 program and monitor program are loaded from the program storage file 10. JOB1 program is
In the conversation processing of each terminal, the file variable name
Since access to the MEC file is required, each requests the file to be opened.

The above-mentioned file processing unit 5 creates temporary files 11 and 12 which are copies of common data files, using names MEC#1, MEC#2, and MEC#n, which are combinations of file variable names and terminal numbers, for each program area. , 13 in the auxiliary storage area, and the information required for input/output processing between each temporary file and its corresponding program area is set in the file control block (FCB) of each program area. . In this way, data (records) from the common data file are copied to each temporary file, and from the same file variable name,
Access to unique temporary files is allowed for each program area.

In this way, each conversation terminal user uses his or her own temporary file to proceed with the process and perform data references, additions, deletions, etc. When data is added or deleted, it is necessary to update the common data file. Therefore, a flag is provided in the temporary file to indicate whether data has been added or deleted, and after the file is closed, the file processing unit 5 returns or discards the temporary file according to the contents of the flag. Execute the process.

As described above, jobs using a common data file can be executed simultaneously and independently from multiple conversation terminals with the same user ID.

In addition, in the case of processing that has strict requirements for updateability of the common data file, the file processing section must be provided with means for managing the synchronization state of the contents between the temporary files.

(6) Effects of the Invention According to the present invention, since the same job can be executed from multiple conversation terminals having the same user ID without waiting time, jobs related to frequently used common data files can be executed easily. It is now possible to process many items in parallel, making work faster and more efficient.

[Brief explanation of the drawing]

Figure 1 is a configuration diagram of a system according to an embodiment of the present invention;
The figure is a functional explanatory diagram of the file processing section. In the figure, 1, 1', 1'' are machine numbers #1, #2,
TSS conversation terminal device with #n, 2 is the central processing unit, 3 is the communication control unit, 4 is the job control unit, 5 is the file processing unit, 6 is the main memory, 6a to 6n correspond to job processing of each terminal device 7 is an auxiliary storage file including a program storage file and a temporary file, and 8 is a common data file.

Claims (1)

[Claims] 1. In a data processing system that has a central processing unit, main memory, auxiliary storage device, and a plurality of conversation terminal devices, and in which a common file is accessed by the plurality of conversation terminal devices, the same file can be accessed from different terminal devices. In order to simultaneously process the same job that uses a common data file using a user identification code, a file name is created by concatenating the logical numbers of the multiple terminal devices and the file variable name defined in the program of the job. and a means for creating a plurality of temporary files that are copies of the common data file, corresponding to the created file name, so that the job for each terminal device can be created in its corresponding temporary file. A file processing method characterized in that it is executed using.