JPS6358544A - Electronic computer system - Google Patents

Abstract

PURPOSE:To easily discriminate and analyze the factor of an error at a user side by informing an error factor code to the user when an OS processing program has an error and at the same time freezing contents of a main memory. CONSTITUTION:When the errors are produced with a program (A) working in a task 10 or programs (B) and (C) working on an extended line of the program (A), an error information collecting mechanism 20 is called each time to call unconditionally an error information stack mechanism 30. The mechanism 30 secures a system shared data area 40 to set the detailed information including an error factor code there. Then the area 40 is connected to the task 10. Then the mechanism 20 calls an error information informing mechanism 50 and produces a message of the error factor code to display it on character display device 60. Furthermore the mechanism 20 calls a main memory contents freezing mechanism 70 and outputs all contents of main memory to an external memory device 80.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an electronic computer system, and particularly to a processing method when a program error occurs in a processing program in an operating system (hereinafter abbreviated as O8).

[Conventional technology]

Conventionally, in this type of electronic computer system.

When an abnormality occurs in the processing program in O8, the cause of the abnormality is determined based on the processing result code (hereinafter abbreviated as return code) of the output information.

Here, even if it becomes necessary to add a new return code due to modification of the processing program, conventionally it has been impossible to add a new return code in order to maintain compatibility with the program. At times like this,
The new return code is rounded to one of a plurality of conventional return codes. For this reason, in conventional computer systems, if the processing program is modified several times, the same return code will be output for a plurality of different causes of abnormality.

[Problem that the invention seeks to solve]

As mentioned above, in conventional computer systems, the same return code is output for multiple different causes of abnormalities, so it is difficult for processing program users to determine the true cause of the abnormality. There is. Also, after the processing program terminates abnormally, the contents of the main storage device are different from the state at the time of the error occurrence.

There is a problem in that it is difficult to analyze the cause of the abnormality.

Therefore, two objects of the present invention are to notify the user of the processing program of an error cause code defined for each error cause when a program error occurs in the processing program in O8, and to An object of the present invention is to provide an electronic computer system in which the cause of an error can be easily analyzed by freezing the contents of the device.

[Failure to solve the problem]

A computer system according to the present invention has a system data area, a character display device, and a main storage device, and when a program error occurs in a certain processing program and the program terminates abnormally, the error is detected in advance. An error information stack mechanism that saves the error cause code defined for each cause in the system data area, an error information notification mechanism that displays the error cause code on a character display, and a freeze of the contents of the main memory when an error occurs. When a program error occurs in the processing program in O8, it saves the error cause code and at the same time notifies the processing program user, and freezes the contents of the main memory at the time of the error. It is characterized by

〔Example〕

The following nine embodiments of the present invention will be described below with reference to the drawings: Program (4) or program (B) operating as an extension thereof
, it is assumed that a program error occurs in program (C). In that case, the error information collection mechanism 20 is called each time. The error information collection mechanism 20 calls the error information stack mechanism 30 unconditionally.

The error information stack mechanism 3o secures a system-shared data area 40, sets detailed information including an error cause code in this data area 40, and
to the task.

Next, the error information collection mechanism 20 calls the error information notification mechanism 50. The error information notification mechanism 5° creates a message with the error cause code.

It is displayed on the character display device 60. Additionally, error information
The information collection mechanism 20 calls the main storage content freezing mechanism 7°. In the main storage device content freezing mechanism 70.

The entire contents of the main storage device are output to the external storage device 80.

Among these, the error information notification mechanism 50 and the main storage content freezing mechanism 70 are determined whether or not to be called from the error information collection mechanism 20 using a discriminator provided in the error information collection mechanism 20. Since the value of this discriminator can be changed dynamically, it is at the discretion of the processing program user.

You can get as much information as you need, when you need it.

〔Effect of the invention〕

As is clear from the above description, there are two aspects of the present invention.

When a program error occurs in the processing program in O8, the error cause code is notified to the processing program user, and the contents of the main memory are frozen.
This has the effect of making it easier for the processing program user to determine the cause of the error and analyze the cause of the error.

It is a diagram.

10...Task, 20...Error information collection device.

30...Error information stack mechanism t40...Data area, 50...Error information notification mechanism, 60...Character display device, 70...Main storage content freezing mechanism, 80
...External storage device.

Claims (1)

[Claims] 1. In a computer system that has a system data area, a character display device, and a main storage device, when a program error occurs in a certain processing program and the program terminates abnormally, a method is defined in advance for each cause of the error. an error information stack mechanism that saves an error cause code to the system data area; an error information notification mechanism that displays the error cause code on the character display device; and a main memory that freezes the contents of the main storage device when an error occurs. An electronic computer system comprising a storage device content freezing mechanism.