JPS6254322A - Data file input/output system - Google Patents

Abstract

PURPOSE:To improve a data input speed from a keyboard by separating file I/O processing from a data entry program body and executing the processing as an independent task. CONSTITUTION:The data file I/O system is constituted of a data entry program 1, a file processing task 2, a common I/O buffer 3, a control block 4, and a file 5. The control block 4 includes an output request flag 6, an input request flag 7, output and input completion flags 8, 9, a processing end flag 10, and an input status holding status 11. The program 1 sets up information required for the control block at the generation of an I/O request to the file 5, and the task 2 always supervises the control block 4 to write/read out data in/from the file 5. Consequently, it is unnecessary to correct a file I/O routine at the transfer of the system.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a data file input/output method, in particular, a data entry system that edits data on a screen and outputs it to a file, and This invention relates to a data file input/output method for file input/output processing in the process of displaying code on a reading screen.

[Conventional technology]

In the conventional data file input/output method, one program contains an output buffer, an input buffer, and a routine that controls file input/output. When the output is completed, the next data can be input to the kill board. Regarding input from a file, keyboard operations were enabled once the input processing from the file was completed.

[Problem that the invention seeks to solve]

However, in the data file input/output method in the conventional data entry system described above, data output to a file or data input processing from a file corresponds one-to-one with processing on the screen, and input/output to a file Since data cannot be input from the keyboard until processing is completed, data input processing that requires high data input processing speed from the keyboard is not possible.
Performance problems such as the inability to speed up processing in IJ systems, and during system migration.

There is a problem in that the file input/output cultin also needs to be modified.

[Means for solving problems]

The data file input/output method of the present invention includes a common input/output buffer, a control block, and a file processing task in order to improve data entry processing speed and improve portability during system migration.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing one embodiment of the present invention.

The data entry program 1 is a main control unit and sets necessary information in the control block 4 when an input/output request to a file occurs. The file processing task 2 constantly monitors the control block 4, and if it is an output request, it writes the data in the output buffer of the common input/output buffer 3 to the file 5, and if it is an input request, it writes the data from the output buffer of the common input/output buffer 3 to the input buffer of the common input/output buffer 3. Read data to. The common input/output buffer 3 is composed of an output buffer that holds output data from the data entry program 1 and an input buffer that holds input data from the file 5. As shown in detail in FIG. 2, the control block 4 includes an output request flag 6, an input request flag 7, an output completion flag 8, and an input completion flag 9.
, has a processing end flag 10 and a status 11 that holds the input/output status with the file 5.

Next, the operation of the data file input/output method shown in FIG. 1 will be explained.

When data writing occurs, the data entry program 1 sets the data to the output buffer of the common input/output buffer 3, then turns on the output request flag 6 of the control block 4 and continues data input processing from the primary keyboard. do. During this time, the file processing task 2 performs output processing to the file 5. The output completion flag 8 turns on when the output to the file 5 is completed, and at the same time, the output request flag 6 turns off. The data entry program 1 checks the output request flag 6 when requesting missing data, and if it is off, turns off the output completion flag and requests data output.

If the data reading data entry program 1 requires it, the input request flag 7 is turned on and an input request is made. Data entry program 1 has input completion flag 9
is checked, and if it is on, data is taken from the input buffer of the common input/output buffer 30 and the input completion flag 9 is turned off. If it is necessary to continue inputting data from the file 5, the input request flag 7 is turned on to continue inputting data from the keyboard. During this time, the file processing task 2 sets the next data in the file and turns on the input completion flag 9.

In the status 11, when the data entry program 1 recognizes that each input/output request is not attended or an error, the corresponding processing is performed.

The processing end flag 10 is set for the file processing task 2 when the data entry program 1 ends, and the file processing task 2 returns a response to the processing end flag 10. In response to this response, the data entry program 1 ends its processing.

〔Effect of the invention〕

The data file input/output method of the present invention separates file input/output processing from the data entry program main body and makes it a separate task, thereby improving data input speed from the keyboard. This has the effect that it can be easily ported to other systems.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing one embodiment of the present invention. FIG. 2 is a configuration diagram showing an example of the control block shown in FIG. 1. 1... Data entry program, 2...
...File processing task, 3...Common input/output buffer, 4...Control block, 5...
File, 6...- Output request flag, 7...
...Input request flag, 8... Output completion flag,
9...Input completion flag, 10...Processing completion flag, 11...Status. fi /'° ・Yashiro JJ Patent attorney Hi Uchihara. Figure 1 Figure 2 5 6: Eka requirement 7 lacs. 7 Person 77# East flag 8: Output room T flag 2 Input completion 7 Raku 10: Catechism #Y flag. 11 Status

Claims (1)

[Claims] A data entry system that outputs data input from a keyboard to a file record by record or inputs data in a file record by record, characterized by including a common input/output buffer, a control block, and a file processing task. Data file input/output method.