JPH05334159A - Method for automatically diagnosing file destruction - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a file destruction automatic diagnosis method that can search for a file whose power was turned off during the previous recording when the power was turned on and automatically edit the actual data of the file automatically. In an electronic device having a storage unit in which various data input from an input unit is recorded, a recording execution flag is set for each file before starting the work of recording data in the storage unit, and the storage unit When the recording is completed, an index corresponding to the actual data is created, and the recording execution flag is reset for each file. When the power is turned on, the state of the recording execution flag is judged, and only for the file for which the recording execution flag is set. After properly editing the actual data, the index is recreated, the recording execution flag is reset, and then the normal operation is performed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic file destruction diagnosing method capable of preventing destruction of data stored in a file in an electronic device.

[0002]

2. Description of the Related Art In an electronic device such as a POS terminal having a memory and a disk in which various data input from an input section are recorded, data of a file is generated due to a power failure during data input or other troubles caused by an erroneous operation. May be destroyed. Conventionally, there is a method of manually starting a file repair program when data corruption is found, and repairing corrupted data, or restoring correct data from saved data.

[0003]

When the data destruction is found on the spot, it can be dealt with by activating the file restoration program manually as described above. However, it is not known in the normal operating system what kind of file the file being recorded is, or what file is destroyed, and it will be revealed as a system failure at a later date.
The influence of destruction spreads, making it difficult to recover data.

[0004]

According to the present invention, in an electronic device having a storage section in which various data input from an input section are recorded, each file is stored before the operation of recording the data in the storage section is started. A recording execution flag is set, an index corresponding to actual data is created at the end of recording in the storage unit, the recording execution flag is reset for each file, and the state of the recording execution flag is determined when the power is turned on. Only in the file in which the recording execution flag is set, the actual data is properly edited, the index is recreated, and after the recording execution flag is reset, the normal operation is performed.

[0005]

Since the recording execution flag is set during the recording of the file, when the power is turned on during the discontinuation process, the state of the recording execution flag is judged to find the recording-in-progress file, and the actual data of the file is correctly recorded. Can be edited. Therefore, even if a file that is being recorded exists due to a power failure or other trouble, the corresponding file can be automatically restored.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. First, FIG. 2 shows a circuit diagram of the POS terminal.
A ROM 1 in which an execution program of the present invention is written, a CPU 2 controlled by the program of the ROM 1, a RAM 3 as a storage unit for storing variable data, a hard disk 4 as a storage unit, and a unit for inputting data. Key input device 5 and display device 6 for displaying input data
And the printer device 7 that outputs the input data are connected to each other.

Next, the program written in the ROM 1 will be described. First, a normal operation, that is, a data update program will be described with reference to the flowchart shown in FIG. First, set the recording execution flag in the flag area at the beginning of the corresponding file,
After that, the data of the corresponding file is updated. Subsequently, the recording of the file is completed by resetting the recording execution flag after recording the corresponding file.

FIG. 3 shows an example in which data is stored in the RAM 3. For each file A7 and file B8,
It has 1-byte flag areas 7a and 8a for setting the recording execution flag at the head. Figure 4 shows hard disk 4
Shows an example of storing data in each file C
9. Each file D10 has 1-byte flag areas 9a and 10a for setting a recording execution flag at the head.

Next, the automatic repair program is executed as shown in FIG.
This will be described with reference to the flowchart shown in FIG. Only when the recording execution flag is set in the flag area of the corresponding file, rearrangement of actual data is executed, indexes are recreated, and the recording execution flag is reset.

Next, a program for starting the automatic repair program is shown in FIG. In this program, when the power is turned on, first, it is determined whether or not the execution is continuous. In the case of non-continuous execution, since the recording state of the data in the file is abnormal, the continuous execution cannot be executed, and as a result, the operating system (OS) determines the non-continuous execution. This corresponds to the case where an abnormality occurs in the data due to a power failure or an erroneous operation during file recording in the previous time. In this way, when it is determined to be the non-continuous execution, the above-described automatic repair program is executed, and then the normal data recording operation is started. If it is judged to continue the execution when the power is turned on, it immediately shifts to the normal data recording work.

As described above, since the recording execution flag is maintained in the set state during the recording of the file, when the power is turned on during the discontinuation process, the state of the recording execution flag is judged to search for the file in the middle of recording, You can edit the actual data of the file correctly. Therefore, even if there is a file that is being recorded due to a power failure or other trouble, the data of the corresponding file can be automatically restored. Along with this, a special operation for data restoration becomes unnecessary, and operability can be improved. Further, since the data destruction of the file is repaired on the spot, the influence on the entire system can be prevented.

[0012]

According to the present invention, in an electronic device having a storage section for recording various data input from the input section, a recording execution flag is set for each file before the operation of recording data in the storage section is started. Set, an index corresponding to actual data is created at the end of recording in the storage unit, the recording execution flag is reset for each file, and the state of the recording execution flag is determined when the power is turned on. Correctly edit the actual data only for the set file, recreate the index, reset the recording execution flag, and then shift to normal operation, so the recording execution flag is set during file recording. Therefore, when the power is turned on during discontinuation processing, the status of the recording execution flag is checked to determine whether recording is in progress. You can search for a file and edit the actual data of that file correctly. Therefore, even if there is a file that is being recorded due to power failure or other trouble, you can automatically restore the data of the corresponding file, Along with this, special operation for data recovery becomes unnecessary, the operability can be improved, and further, the data destruction of the file is repaired on the spot, preventing the influence on the entire system. It has the effect of being able to.

[Brief description of drawings]

FIG. 1 is a flowchart showing an execution program of the present invention.

FIG. 2 is a block diagram showing an electronic circuit.

FIG. 3 is an explanatory diagram showing a storage state of data in a RAM.

FIG. 4 is an explanatory diagram showing a storage state of data in a hard disk.

[Explanation of symbols]

 3,4 Storage 7-10 files

Claims (1)

[Claims] 1. An electronic device having a storage section for recording various data input from an input section, wherein a recording execution flag is set for each file before the operation of recording data in the storage section is started, At the end of recording in the storage unit, an index corresponding to actual data is created and the recording execution flag is reset for each file. When the power is turned on, the state of the recording execution flag is determined, and the file in which the recording execution flag is set The file destruction automatic diagnosis method is characterized in that the actual data is properly edited, the index is created again, the recording execution flag is reset, and then the normal operation is performed.