JPH02253335A - Program starting system - Google Patents

Abstract

PURPOSE:To attain the real-time correction of a JCL error if detected and to omit a start request that is produced again after a program starting request is once through and then a job control language JCL is corrected by using a JCL error informing/changing means. CONSTITUTION:A JCL analyzing means 5 shifts the control as well as a JCL to a JCL error informing/changing means 7 if a description or designation error is detected with the JCL stored in a JCL analyzing area 4. The means 7 informs a terminal 1 of the JCL including an error and receives the JCL corrected by a program starting requester to deliver it to the means 5. As a result, the JCL can be corrected in real time if the JCL has an error. Thus it is not required to produce again a program starting request after this request is once through and the JCL is corrected.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a program starting method, and particularly to a program starting method in a computer system.

[Conventional technology]

Conventionally, in the program startup method using job control language (hereinafter abbreviated as JCL), if a description error or specification error is detected during the analysis process to determine whether there is a description error or specification error in the JCL, The program interrupted the JCL analysis process, issued an abnormal termination notification, and ended without starting the program.

[Problem to be solved by the invention]

In the conventional program startup method described above, if there was a description error or specification error in the JCL, the program would terminate without starting after the abnormal termination notification. The disadvantage is that the execution must be requested again.

In view of the above-mentioned points, an object of the present invention is to provide real-time JCL information by a program start requester when there is an error in JCL.
To provide a program startup method that allows modification of CL and eliminates the need to once terminate a program startup request and issue a program startup request again after modifying JCL.

[Means to solve the problem]

The program starting method of the present invention includes a job control language manual means for inputting a job control language, and a job control language manual means for inputting a job control language in a program starting method in a computer system.
11 a job control language analysis means that determines whether or not there is an error in the job control language input by the language input means and, if there is no error in the job control language, develops the job control language into data that allows the program to be executed; Job system '4I
If the language analysis means determines that there is an error in the job control language, the program startup requester is notified of the error in the job control language in real time, and the job control language is corrected by the program startup requester. The job control language error notification/changing means receives the job control language and returns it to the job control language analysis means, and the program execution means starts the program based on the program executable data developed by the job control language analysis means.

[Effect]

In the program starting method of the present invention, the job control language input means inputs the job control language, and the job control language analysis means determines whether or not there is an error in the job control language input by the job control language input means. If there is no error in the control language, the job control language is expanded into data that allows the program to be executed, and the job control language error notification/change means executes the job control language in real time when the job control language analysis means determines that there is an error in the job control language. The job control language with the error is notified to the program start requester, the job control language correctly corrected by the program start requester is received and returned to the job control language analysis means, and the program execution means sends the job control language to the job control language analysis means. The program is started based on the executable data expanded by the program.

〔Example〕

Next, the present invention will be explained in detail with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of a program startup method according to an embodiment of the present invention. The program starting method of this embodiment consists of a terminal 1 that makes a program starting request, an auxiliary storage device 2 that stores a JCL containing program starting information, and a JCL manual means that inputs the JCL from the auxiliary storage device 2. 3, a JCL analysis area 4 in which the JCL input by the JCL manual means 3 is stored, and a JCL
JCL analysis means 5 that analyzes the JCL stored in the analysis area 4 and converts the program into executable data;
A JCL development area 6 that stores data that allows the program converted by the CL analysis means 5 to be executed, and a JCL development area 6 that notifies the terminal 1 of the erroneous JCL when an error is detected in the JCL by the JCL analysis means 5. JCL error notification/modification means 7 which receives the correctly corrected JCL from the terminal 1 and returns it to the JCL analysis means 5; The main part thereof consists of a program execution means 8 for starting a program.

Note that the JCL input means 3. JCL analysis means 5゜JCL error notification/modification means 7 and program execution means 8 are included in job management system 11, and JCL analysis area 4 and JCL expansion area 6 exist on main storage device 12. Also, job management system 11. Main storage device 1
2 and auxiliary storage device 2 are included in a host computer system 10 to which terminal 1 is connected.

Next, the operation of the program starting method of this embodiment configured as described above will be explained.

When a request is made to start a program from the terminal 1, the JCL input means 3 is first started in the host computer system 10.

The JCL input means 3 manually inputs the JCL from the auxiliary storage device 2, stores it in the JCL analysis area 4, and passes control to the JCL analysis means 5.

The JCL analysis means 5 checks whether there are any writing errors or specification errors in the JCL stored in the JCL analysis area 4, and if there are no writing errors or specification errors, the JCL in the JCL analysis area 4 can be used to execute the program. Convert to data and JC
The program is expanded to the L expansion area 6 and control is passed to the program execution means 8.

On the other hand, if a description error or specification error is detected in the JCL stored in the JCL analysis area 4, the JCL analysis means 5 passes control along with the JCL to the JCL error notification/changing means 7.

The JCL error notification/modification means 7 notifies the terminal 1 of the JCL containing a description error or specification error, and prompts the program activation requester to modify the JCL.

JCL correctly modified by the program launch requester
is returned from the terminal 1, the JCL error notification/change means 7 receives it, and the JCL error notification/change means 7
passes the modified JCL to the JCL analysis means 5.

The JCL analysis means 5 checks the modified JCL received from the JCL error notification/changing means 7 again for any description errors or specification errors, and if there is no description error or specification error, programs the revised JCL. is converted into executable data and expanded into the JCL expansion area 6, and control is passed to the program execution means 8.

The program execution means 8 starts the program based on data that allows the program to be executed expanded in the JCL expansion area 6.

〔Effect of the invention〕

As explained above, the present invention provides a JCL input means.

By providing a JCL analysis means, a JCL error notification/modification means, and a program execution means, if there is an error in the JCL for starting a program, it becomes possible for the program start requester to modify the JCL in real time. This has the advantage that there is no need to issue a program startup request again after the JCL startup request is once terminated and the JCL is modified.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of a program starting method according to an embodiment of the present invention. In the figure, 1... terminal, 2... auxiliary storage device, 3... JCL input means, 4... JCL analysis area, 5... JCL analysis means, 6... JCL development area, 7 ...JCL error notification/change means, 8.. Program execution means, 10.. Host computer system, 11.. Job management system, 12.. Main storage device.

Claims (1)

[Claims] In a program startup method in a computer system, there is provided a job control language input means for inputting a job control language, and a method for determining whether or not there is an error in the job control language input by the job control language input means. A job control language analysis means that expands the job control language into executable data if there is no error in the job control language, and a job control language analysis means that expands the job control language into data that allows the program to be executed; Job control language error notification/changing means that notifies a program start requester of the job control language in error, receives the job control language corrected by the program start requester, and returns the job control language to the job control language analysis means; A program starting method comprising: program executing means for starting a program based on data that allows the program to be executed developed by the job control language analyzing means.