JPH0212542A - Information processing system - Google Patents

Abstract

PURPOSE:To perform a data processing correctly without interrupting the processing by migrating the data processing in a segment area to an extension area set in advance when the processing in the area overflowing the segment area set in advance is detected. CONSTITUTION:A user designates the name of the extension area 51 of an extension area auxiliary device 5 used when an exceptional event such as (outside the segment are) is generated in the data processing of a data processor 3 by an extension area designation part 2 provided in a user definition information area. And an exceptional processor 4 starts an exceptional processing by an interruption signal outputted from the data processor 3 when the exceptional event of the (outside the segment area) is generated, and continues the data processing of the data processor 3 by an extension area processing part 41 by using the extension area 51. In such a way, it is possible to complete the data processing correctly without interrupting the processing even when a large amount of data processing overflowing the area of a work segment 34 are performed.

Description

DETAILED DESCRIPTION OF THE INVENTION ±Kekuni 1 The present invention relates to an information processing system, and particularly to a table access method in a computer system having segment processing.

1. Conventionally, in this type of computer system, the size of the segment differs depending on the system, and the size of the segment ranges from 64 kilobytes for a small one to over 16 megabytes for a large one.

When data processing is performed beyond the work segment area, such as when stream data is processed in the segment area as described above, control is transferred to the exception handling section due to the exception "outside the segment area." ,
The processing of the user data processing unit that was processing the data had been interrupted (aborted).

In conventional computer systems such as those mentioned in 2, when data processing is performed in a work segment area, if the amount of data to be processed is large and the processing is performed beyond the work segment area, an exception called "segment area tab" occurs. There is a drawback that subsequent data processing may be interrupted due to certain issues.

The present invention has been made to eliminate the drawbacks of the conventional methods as described above, and even when a large amount of data is processed beyond the segment area, the data processing can be performed without interrupting the data processing. <The purpose is to provide an information processing system that can process.

An information processing system according to the present invention is an information processing system that performs data processing in a preset segment area, and includes: a detection means for detecting processing in an area that exceeds the segment area in the data processing; , a preset magnification 8! according to the detection result of the detection means. A transfer means for transferring the data processing to processing in the area is included.

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

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention. In FIG. 3, an exception handling device 4, and an extended area auxiliary device 5.

The user uses the extended area specifying unit 2 provided in the user-defined information area to select an extended area auxiliary device to be used when an exception such as "outside area to segment l" occurs in data processing of the data processing device 3. 5 expansion area 5
The data processing device 3 has a program executed by the user and includes a data input section 31, a work segment processing section 32, a data output section 33, and a work segment 34. There is.

The exception processing unit 11 handles data processing by the data processing unit 3 when an exception such as “outside the segment area” occurs in the data processing of the data processing unit 3. Exception processing is started by an interrupt signal output from 3, and if an extension area 51 is specified by the extension area specifying unit 2, the extension area processing unit 41 uses the extension area 51 to perform data processing of the data processing device 3. continue.

The expansion area 51 of the expansion area auxiliary bag 'f15 is an area for handling data beyond the area of the work segment 34 of the data processing device 3.

FIG. 2 is a flowchart showing the operation of one embodiment of the present invention. The operation of one embodiment of the present invention will be explained using FIG. 1 and FIG. 2.

When the data processing device 3 is instructed to start data processing by the user via the input/output unit 1, the data input unit 31 inputs data from a database (not shown) (step 11 in FIG. 2).

The data input by the data input section 31 is processed by the work segment processing section 32 using the work segment 34 (step 12 in FIG. 2).

At this time, if the amount of data input by the data input section 31 is small, the processing will be completed within the area of the work segment 34 (step 13.14 in FIG. 2), and the data output section 33 will store the processing results in the database. It is output (step 15 in FIG. 2).

However, if a large amount of data is input by the data input unit 31, the processing will not end within the area of the work segment 34 and will overflow the work segment 34 (step 13 in FIG. 2). When the area of the work segment 34 is exceeded, the work segment processing unit 32 outputs an interrupt signal to the exception processing device 4 due to the exception of “outside the segment area”, and control is transferred to the exception processing device 4 (step in FIG. 2). 16).

The exception handling device 4 reads out the name of the specified extension area 51 from the extension area specification unit 2 (step 17 in FIG. 2).
, if the expansion area 51 is not specified (Step 1 in Figure 2)
8) The data processing of the data processing device 3 is interrupted (step 21 in FIG. 2).

If the expansion area 51 is specified (Step 18 in Figure 2)
1. Data processing beyond the area of work segment 1-34 is performed by the extended area processing section 41 using the extended area 51 specified by the extended area specifying section 2 (step 19 in FIG. 2), It appears to the data processing device 3 as if the work segment 34 is being accessed.

When the extended area processing using the extended area 51 in the extended area processing unit 41 is completed (step 20 in FIG.
), control is returned to the data processing device 3, and if all processing in the work segment processing unit 32 has been completed (second
Figure step 14), the processing result is output to the database by the data output unit 33 (Figure 2 step 15)
.

Therefore, even when processing a large amount of data that exceeds the area of the work segment 34, the data processing can be completed correctly without interrupting the data processing.

In this way, when data processing in the work segment processing unit 32 of the data processing device 3 is processed beyond the area of the work segment 34 and control is transferred to the exception processing device 4 due to an exception “outside the segment area”, By allowing the extended area processing section 41 of the exception handling device 4 to continue data processing using the extended area 51 specified in advance by the extended area specifying section 2, large amounts of data processing that exceeds the area of the work segment 34 can be avoided. Even if there is, it is possible to process it correctly without changing or modifying the user program in any way.

As explained above, according to the present invention, when processing to an area exceeding a preset segment area is detected, data processing in this segment area is transferred to a preset extended area. By allowing the transition to processing, even if a large amount of data is processed beyond the segment area, the data processing can be processed correctly without interruption.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of an embodiment of the invention, and FIG. 2 is a flowchart showing the operation of the embodiment of the invention. Explanation of symbols of main parts 2...Extension area specifying unit 3...Data processing device 4...Exception processing device 5...Extension area auxiliary device 32. ...Work segment processing section 34...
...Work segment 41...Extension area processing unit 51...Extension area

Claims (1)

[Claims] (1) An information processing system that performs data processing in a preset segment area, comprising: a detection means for detecting processing to an area exceeding the segment area in the data processing; An information processing system comprising: a transition means for transitioning the data processing to processing in a preset expansion area.