JP2762817B2 - Application program loop / stall monitoring device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a loop / stall monitor for a computer system, and more particularly to a loop / stall monitor for an application program.

[0002]

2. Description of the Related Art Conventionally, as a method of monitoring a loop / stall of an application program in a computer system, an elapsed time (ELAP) of the computer system is used.
By setting (S TIME), a monitoring method for forcibly terminating the application program when the computer system exceeds the set elapsed time is realized. In addition, a monitoring method for forcibly terminating an application program when the central processing unit exceeds the set usage time by setting the use time (CPU TIME) of the central processing unit of the computer system is also realized.

[0003]

In the above-described loop / stall monitoring method in the conventional computer system, the application program is forcibly terminated when the computer system exceeds the set elapsed time. was there. That is, even if the application program wants to perform processing for longer than the set time, the application program is forcibly terminated after the lapse of the predetermined time. In a certain transaction processing system, there has been a problem that normal processing is hindered.

[0004]

The object of the present invention is to improve the disadvantages of the prior art, and in particular to various data such as telegrams with a long processing time.
Transactions that handle data groups with multiple application programs.
Even with a suction system, application pro
Gram loops, etc., and process data normally and smoothly.
It is an object of the present invention to provide a loop / stall monitoring device of an application program which can manage the application program.

[0005]

According to the present invention, a message is stored in a file.
Stored in a file and read it out sequentially.
Call the application program corresponding to the message
Batch processing of messages and the application
Application program every time the
Of a program that outputs the number of processing by the program
Means and externally input operator commands.
A request to execute the data group specified by the command
Request to the program execution means, and
Program execution control means for outputting the notification time.
ing. Furthermore, this program execution control means
Is activated and notified by the program execution control means.
When the specified timer notification time elapses, the time
Before the timer notification means for notifying and the program execution means
Specify the number of data processing cases each time the number of processing cases is output
Program execution counting means to be stored in a shared area of
The processing stored by this program execution counting means
Application program according to the change in the number of cases
Program execution forcibly terminating the execution of
Have. In the present invention, program execution
The number of processed data output from the counting means and this data
Previous reference data when the data processing count was referenced last time
Shared area for storing the number of processes and operator commands
Request for execution of a data group according to
Timer notification time has passed, and the timer notification means
Are notified in the shared area when the time has passed.
And the number of data processing
If the values are equal, the program execution is forced
Program loop / stall monitor that activates termination means
And a step. In addition, this program loop / s
Toll monitoring means, refer to the previous reference stored in the shared area
When the number of data processing cases differs from the number of data processing cases
Does not activate the program item forced termination means,
The number of data processing cases is regarded as
It has a configuration that has a means for storing in the storage area.
I have. This aims to achieve the above-mentioned object.

[0006]

Next, an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 shows an embodiment of the present invention. The embodiment shown in FIG. 1 is a block diagram showing a configuration of a loop / stall monitoring method of an application program in a computer system. In FIG. 1, the loop / stall monitoring method of the application program is provided in the host computer 1 and the shared memory area 53 is provided.
, Program execution counting means 54, program loop / stall monitoring means 56, program execution forced termination means 57, message data file 3, application programs 41, 42,... 4n, program execution control means 51, It comprises an execution unit 52 and a timer notification unit 55. The program execution control unit 51 issues an execution request for the specified data group to the program execution unit 52 according to the operator command input from the operation terminal device 2. At the same time, the timer notification means 55 is activated, and the timer notification time specified in advance is passed.

[0007] The program execution means 52 acquires the data group requested to be executed from the message data file 3, and until all the individual data (messages) of the data group have been processed, the application programs 41, 4 corresponding to each message.
One of 2,... 4n is repeatedly called and executed.
At this time, every time the processing by one application ends, the number of processing cases is passed to the program execution counting means 54. The shared area 35 is an area on a main memory (not shown) for storing the number of data processing cases and the number of data processing cases at the time of previous reference.

[0008] The program execution counting means 54 registers the number of processings passed from the program executing means in the number of data processings in the shared area 53. The timer notifying unit 55 is configured to execute the program loop / stall monitoring unit 5 at every timer notification time interval designated by the program execution control unit 51.
6 is notified. The program loop / stall monitoring unit 56 compares the number of data processing cases in the shared area 53 with the number of previous data processing cases each time there is a notification from the timer notification unit 55, and determines that a loop / stall has occurred if the values are the same. Then, the program execution forced termination means 57 is activated.

If the number of data processing cases and the number of previous data processing cases are not the same value, the value of the number of data processing cases is registered as the last-reference-time data processing number. The program execution forced termination means 57 is activated by the program loop / stall monitoring means 56 and forcibly terminates the program execution means 52.

Referring to FIG. 2, the processing in the program loop / stall monitoring means 56 includes a previously referenced data processing number acquisition step 101, a data processing number acquisition step 102, and a loop / stall determination step 103.
, A program forced termination step 104, and a previous reference data processing number change step 105. Specifically, the program loop / stall monitor 56 operates as follows.

[0011] The number of data processing at the time of previous reference is obtained from the shared area (step 101). The number of data processing cases is obtained from the shared area (step 102). The number of acquired data processing cases and the number of data processing cases at the time of the previous reference are determined (step 103), and if they are the same, the program execution forced termination means is notified (step 104). The number of acquired data processing cases and the number of previous reference data processing cases are determined (step 103), and if they are not the same value, the value of the data processing number of the shared area is registered as the previously referenced data processing number of the shared area (step 103). 105).

Next, the operation of the loop / stall monitoring method of the application program in the computer system of this embodiment configured as described above will be described. First, a description will be given of an operation in the case where processing is normally performed when an operator command for performing batch processing of electronic messages is input from the operation terminal device 2 to the program execution control unit 51.

(1) In the program execution control means 51,
The following processing is performed.

In response to an operator command input from the operation terminal device 2, a request to execute a specified data group is made to the program execution means 52. At the same time, the timer notification means 55 is activated, and the timer notification time specified in advance is passed.

(2) The program executing means 52 performs the following processing.

The data of the data group requested to be executed is acquired from the telegram data file 3. 4n corresponding to each telegram is called to execute data processing. The number of processes is passed to the program execution counting means 54. The process is repeated until there is no more data in the data group requested to be executed.

(3) Program execution counting means 54
Registers the number of processes passed from the program execution means to the number of data processes in the shared area 53.

(4) In response to the notification 55 from the timer notification means, the program loop / stall monitoring means 56 performs the following processing.

The number of data processing cases in the shared area 53 and the number of previous data processing cases are compared. The number of data processing cases is counted up by the program execution counting means 54, and since the number of data processing cases and the number of previous data processing cases are not the same value,
Register the value of the number of data processing cases to the number of data processing cases at previous reference. In other words, if the application program is performing a normal process (loop or stall), the present embodiment does not forcibly terminate the program.

Next, the operation when the application program is looped / stalled when an operator command for batch processing of messages is input from the operation terminal device 2 to the program execution control means 51 will be described.

(1) In the program execution control means 51,
The following processing is performed.

An execution request for the specified data group is made to the program execution means 52 in accordance with an operator command input from the operation terminal device 2. At the same time, the timer notification means 55 is activated, and the timer notification time specified in advance is passed.

(2) In the program execution control means 52,
The following processing is performed.

The data of the data group requested to be executed is acquired from the message data file 3. 4n corresponding to each telegram is called to execute data processing. An application loop / stall occurs, and the number of data processing cases is not counted up by the program execution counting means 54.

(3) By the notification by the timer notification means,
The program loop / stall monitoring means 56 performs the following processing.

The number of data processed in the shared area 53 is compared with the number of previous data processed. Since the number of data processing cases has not been counted up by the program execution counting means 54, and the number of data processing cases and the number of previous data processing cases have the same value, the program execution forced termination means 57 is activated.

(4) Program execution forced termination means 57
Is started by the program loop / stall monitoring means 56 and the program execution means 52 is forcibly terminated. That is, when a loop / stall of the application program is found, the program can be forcibly terminated from the above operation.

By performing the above operation, the loop / stall of the application program can be monitored, and the program can be forcibly terminated only when the loop / stall occurs.

[0029]

As described above, according to the present invention,
Program execution forced termination means for forcibly terminating the program execution means, a shared area capable of storing the number of data processing cases and the number of data processing cases at the time of previous reference, and a program execution counting means for counting up the number of data processing cases in the shared memory area Program loop / stall monitoring means for referring to the shared area at regular time intervals by the timer notification means, and notifying the program execution forced termination means when the number of data processing cases is equal to the number of previously referenced data processing cases. than was provided, it is possible to perform normal processing even in a treating long telegram processing time transaction processing system, provides a loop / stall monitoring device excellent application program unprecedented that it Can be.

[Brief description of the drawings]

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

FIG. 2 is a flowchart showing a processing procedure in a program loop / stall monitoring unit in FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Host computer 2 Operation terminal device 3 Message data file 41,42, ... 4n Application program 51 Program execution control means 52 Program execution means 53 Shared area 54 Program execution count means 55 Timer notification means 56 Program loop / stall monitoring means 57 Program execution Forced termination means

Claims (1)

(57) [Claims] Claims: 1. A telegram is stored in a file.
Application corresponding to the message by sequentially reading
Application program and batch processing of messages
In each case, every time the processing by the application ends
Number of processing by the application program
And a command execution means for outputting the command according to an operator command input from the outside.
Execution request for the data group specified by the
When requesting the line means and notifying the timer specified in advance
A program execution control means for outputting a while, is activated by the program execution control unit, the flop
When the timer is notified by the program execution control means
When the time elapses, a timer
The number of processes is output from the notifying unit and the program executing unit.
For each application, the number of data processing cases is stored in a predetermined shared area.
Program execution counting means, processing stored by the program executing counting means
Application program according to the change in the number of cases
Program execution forcibly terminating the execution of
/ Stall of application program provided
In the monitoring device, data output from the program execution counting means
When the number of processed data and the number of processed data were referenced last time
There is a shared area that stores the number of data
In addition, the execution request of the data group is issued according to the operator command.
After the notification, the previously specified timer notification time elapses
And when the elapsed time is notified from the timer notifying means.
At the time of the previous reference data processing stored in the shared area.
If the number is equal to the number of data processing cases
Is a program that activates the program execution forced termination means.
And a loop / stall monitoring means, wherein the program loop / stall monitoring means
The number of previous reference data processing cases stored in the area and the data
If the number of data processing is different, the program
When the end processing is not activated and the data processing count is referenced last time
A means for storing the number of data processing cases in the storage area is provided.
Application program features
Loop / stall monitor.