JPH1115677A - Process controller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve operability and to facilitate the change of a derivative process form by generating a derivative process by job control language and additionally use process information of a derivative source at a derivative destination process. SOLUTION: A derivative source process 1 informs a job managing means 50 of the derivative request or the finish stand-by request of the derivative destination process 2 by the job control language of its own input stream file 10. The process 2 informs the means 50 of the finish of its own execution by the job control language of its own input stream file 20. The means 50 is provided with a derivative process control means 60 to receive a process generation request and a process finish stand-by request described in the job control language from the file 10 of the process 1 to control the generation, execution, finish and finish information of the process 2. Thereby, the generation of the derivative process is facilitated and even at the time of changing the state of the derivative process, changing is easy.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a multi-process process control device, and more particularly to a process control device for controlling a process requested to be derived in a job control language of an input stream file of the process.

[0002]

2. Description of the Related Art Conventionally, when a running process requests the derivation of a child process, a method for generating the process is described in Japanese Patent Application Laid-Open No. 7-319715. Discloses a hierarchical resource management method that secures used resources before job execution and guarantees a job execution environment by securing used resources in advance. In this publication, a resource management tree process in which a resource management root process and a resource management process for managing resources of the entire system are connected according to a parent-child relationship between groups is generated. In this method, the resources required in the above are allocated in advance from the resources held by the parent resource management group in accordance with the resource management tree, thereby guaranteeing the job execution environment.

Further, as disclosed in Japanese Patent Application Laid-Open No. 7-200316, by providing a means for separating a parent-child relationship between a parent process and a child process, it is possible to reduce the generation time of the predetermined number of child processes. A scheme for generating child processes is disclosed. In this publication, the first generation process is separated from at least the third generation and subsequent processes in a parent-child relationship to reduce the time required for the first generation process to generate the number of child processes to be generated.

[0004]

The first problem is that, in the above-described conventional process generation method, a child process is generated from a program of a parent process. When the program structure is changed, it is necessary to recompile the program and review the program, so that the process control of the derivation source and the derivation cannot be easily performed without changing the program. The reason is that the process derivation means can be used only from within the program of the parent process.

[0005] It is an object of the present invention to improve the operability and to easily change the form of a derived process by providing a derived process generating means, a derived process completion notifying means, and a derived process completion waiting means in a job control language. It is in.

[0006]

Referring to FIG. 1, the present invention uses a job control language (hereinafter referred to as JCL) of a derivation source process 1 for requesting derivation of a process in a job management unit 50 of a process control device. Derived process generation request analysis means 52 receives the described derivation process generation request 11 of the input stream file (hereinafter referred to as ISF) 10 and stores process derivation relationship information indicating the relationship between the derivation destination process 2 and the derivation source process 1 in the process list 70. Process generating means 6 for registering the derivation destination process 2
1 and request 1 for waiting for termination of derived process in ISF10
Derived process end wait request analyzing means 53 receiving the request 2
And a derivation process end waiting means 63 for judging whether or not the derivation destination process 2 has ended based on the process status information of the process list 70 and appropriately notifying the derivation source process 1 of the end of the derivation destination process 2. , The derived process end notification request analysis means 54 receives the derived process end notification request 21 of the ISF 20, and checks the derived source process 1 of the derived destination process 2 with the derived source process identification number 712 of the process list 70, and Derived process end notifying means 62 for notifying process 1 that derivation destination process 2 has been completed, and a number that can be identified for each process, and a process identification number 71 for each process.
1, Derivation source process identification number 71 of derivation source process 1
2. Process status information 713 indicating the process status is included in the process derivation relationship information 71, 72 of the process list 70 for managing the relationship between the derivation source process 1 and the derivation destination process 2.

[0007] The derived process generation means 61 of the derived process control means 60 associates the derivation destination process with the child process and the derivation source process with the parent process, registers the relationship in the process list 70, and stores the process information of the derivation source process 1. 3
0 is duplicated and generated as the process information 40 of the derivation destination process 2. The derivation process end notification means 62 obtains the process derivation relationship information 71 of the derivation destination process 2 from the process list 70, obtains the derivation source process identification number 712 from the information, and obtains the process status information 723 of the derivation source process 1 And the process status information 723 in the
Is waiting for termination, the derived process termination waiting means 63 is used to notify the termination of the derivation source process 1 to the derivation source process 1. The fact that the derivation destination process 2 has ended is stored in the information 723. The derivation process end waiting means 63 acquires the process derivation relationship information 71 of the process to be waited for specified at the time of the request, checks whether or not the derivation destination process 2 has ended. 1 and waits for the termination of the derivation destination process 2 when it is not terminated.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Next, embodiments of the present invention will be described in detail with reference to the drawings. Referring to FIG. 1 showing the configuration of the process control device, a derivation source process 1
Operates according to the contents of the JCL described in the ISF 10. In the JCL, a derived process creation request 11 is described in order to newly create a derived process 2. When the derived process generation request 11 is analyzed by the derived process generation request analysis unit 52 in the JCL analysis unit 51, a request for generation of the derivation destination process 2 is issued to the derived process generation unit 61. Derived process generation means 61
Assigns the process identification number 711 of the newly generated derivation destination process 2 to the process list 70, and records the identification number of the derivation source process 1 in the derivation source process identification number 712. Subsequently, the created process information 40 of the derivation destination process 2 is created by copying the control variable information 31 of the derivation source process 1 and the process information 30 of the file description information 32. When this is completed, the derived process generation means 61
Derived from process 1 and derived from process 2 ISF
Derivation source process 1 and derivation destination process 2 with 20 JCL
A derived process end notification request 22 for notifying the end of itself is described.

When the derived process end notification request 22 is analyzed by the derived process end notification request analyzing means 54 in the JCL analyzing means 51, the derived process end notifying means 6
2 is requested to notify the end of the derivation process 2.
The derivation process end notification means 62 acquires the derivation source process identification number 712 from the process derivation relationship information 71 of the derivation destination process 2 in the process list 70. Based on the obtained derivation source process identification number 712, the process status information 713 in the process list 70 is obtained, and the end of the derivation destination process 2 is notified to the process 1. In the JCL of the ISF 10 of the derivation source process 1, in order to wait for the termination of the derivation destination process 2, a derivation process end waiting request 12 for the process identification number 711 of the derivation destination process 2 to be waited for is described. When the derived process end waiting request 12 is analyzed by the derived process end waiting request analyzing means 53 in the JCL analyzing means 51, the derived process end waiting means 63 is requested to wait for the end of the derived destination process 2. The derivation process end waiting means 63 acquires the process state information 713 based on the process identification number 711 of the specified derivation destination process 2, and when the derivation destination process 2 is completed, it indicates that the derivation destination process 2 has been terminated. Notify process 1. If not finished, wait for the end.

Next, regarding the operation of this embodiment, FIG. 4 showing a flowchart of the operation of the derived process generating means 61, FIG. 5 showing a flowchart of the derived process end notifying means 62, and FIG. This will be described with reference to FIG. 6 showing a flowchart. ISF
The derived process generation request analysis means 52 in the JCL analysis means 51 that has analyzed the derived process generation request 11 described in 10 requests the derived process generation means 61 to generate a derived process. Derived process generation means 61 which has received the derived process generation request 11 starts the derived process generation procedure shown in FIG. 4, creates new process derivation relationship information 71 shown in FIG. 2, assigns a new identification number,
Register in the derived process identification number 711 (step 8
0). Further, the identification number 721 of the derivation source process 1 is registered in the derivation source process identification number 712 (step 8).
1). Control variable information 3 in process information 30 shown in FIG.
1 and the file description information 32 are duplicated to generate the process information 40 of the derivation destination process 2 (step 82). For the derivation source process 1 that has issued the derivation process generation request 11, the process identification number 7 of the generated derivation destination process 2
11 is notified (step 83). Derived process end notification request analysis means 54 in JCL analysis means 51 which analyzed derived process end notification request 22 described in ISF 20
Requests the derivation process end notification means 62 to notify the end of the derivation process 2. Derived process end notification means 62 that has received the derived process end notification request 22
Starts the derivation process end notification procedure of FIG. 5 (step 90), and sets the process state information 713 in the process derivation relationship information 71 to the end state (step 91). From the process derivation relationship information 71, the derivation source process identification number 7
12 (step 92), and process status information 723 from the process derivation relationship information 72 of the derivation source process 1
Is checked, and if it is in the end wait state (Yes in step 43), a derivative process end wait procedure is executed (step 94). The derived process end wait request 12 described in the ISF 10 was analyzed. The derivation process end wait request analysis means 53 in the JCL analysis means 51 starts the derivation process end wait procedure (step 94 in FIG. 6), and instructs the derivation process end wait means 63 to derive the designated process identification number. Request the end of the previous process 2 to wait. Derived process end waiting means 63, which has received the analysis result of the derived process end waiting request 12, acquires the process state information 713 from the process derivation relationship information 71 having the designated process identification number 711 (step 941). If the process status information 713 is completed (step 942)
(Yes), an end notification is issued to the derivation source process 1 that is the request source (step 943), and the process derivation relationship information 71 of the derivation destination process 2 is deleted (step 94).
4).

Next, this embodiment will be described with reference to the drawings showing examples. In the business embodiment shown in FIG. 7, first, the file 120 and the file 121 are output by the program 110 of the process that is the derivation source, and the control variables 130 and 131 are updated. A program 111 of a derivation process that operates by inputting the file 120 and referring to the control variable 130,
Derivation destination process program 112 that operates by inputting file 121 and referring to control variable 131
Operate as the programs 111 and 112 of the derivation process of the program 110. Referring to FIG. 8 showing an example in which the present invention is applied to the business embodiment shown in FIG. 7, an ISF for operating the derivation source process 140 is provided.
In 141, the program start 142 operates first, and FIG.
The program 110 operates in. Next, the derived process generation means 61 is issued by the derived process generation request 143.
Is executed, and the derivation destination process 150 is generated. The process information 170 of the derivation source process 140 is duplicated in the process information 180 of the derivation destination process 150. Thereby, the program 111 in FIG. 7 of the derivation process started by the program start 152
Can operate using file 120 and control variables 130. Similarly, the derivation process 160 is generated by the derivation process generation request 144,
Program 112 in FIG. 7 of derivation destination process 160
Works. The derivation destination process 150 notifies the derivation source process 140 of the end of the process by the derivation process end notification 153, and the derivation source process 140 receives this by the derivation process end wait 145, and waits for the end of the derivation destination process 150. . Similarly, a derived process end notification 163 is received by the derived process end wait 146, and the end of the derived process 160 is waited for.

[0012]

A first effect of the present invention is that a derived process can be generated easily by using a job control language because the derived process can be generated. Also, when changing the state of the derived process, the change is easy. The reason is that in the method of generating a derived process from within a program, when the form of the derived process is changed, it is necessary to recompile the program of the derived process, but this is not necessary in the present invention.

[0013] Further, a second effect of the present invention is that the process information of the derivation source is used in the derivation destination process.
An operation based on the operation result of the derivation source process can be executed by the derivation target process. Further, the time for creating the process information of the derivation destination process can be omitted, and the process startup time can be reduced. The reason is that the process information is duplicated and generated when the process is generated.

[Brief description of the drawings]

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

FIG. 2 is a diagram showing a configuration of a process list of FIG. 1;

FIG. 3 is a diagram showing a configuration of process information of FIG. 1;

FIG. 4 is a flowchart of a derived process generation unit of FIG. 1;

FIG. 5 is a flowchart of a derivative process end notifying unit of FIG. 1;

FIG. 6 is a flowchart of a derivation process end waiting unit of FIG. 1;

FIG. 7 is a diagram illustrating a business embodiment for executing a process.

FIG. 8 is a diagram in which the embodiment of FIG. 1 is applied to the business embodiment illustrated in FIG. 7;

[Explanation of symbols]

 Reference Signs List 1 Derivation source process 2 Derivation destination process 10 Input stream file (ISF) 11 Derived process generation request 12 Derived process end wait request 20 Input stream file (ISF) 21 Derived process generation request 22 Derived process end notification request 30 Process information 40 Process information Reference Signs List 50 Job managing means 51 Job control language analyzing means 52 Derived process generation request analyzing means 53 Derived process end waiting request analyzing means 54 Derived process end notification request analyzing means 60 Derived process control means 61 Derived process generating means 62 Derived process end notifying means 63 Derived process end wait means 70 Process list

Claims (5)

[Claims] 1. A process control apparatus having a job management means for controlling generation, execution, and termination of a process, wherein a first process sends a second command to the job management means in a job control language of its own input stream file. Means for notifying a request for derivation of a process or a request for waiting for termination, wherein the second process includes means for notifying the job management means of the end of its own execution in a job control language of its own input stream file, Job management means receives a process creation request or a process termination wait request described in a job control language from the input stream file of the first process, and issues a notification of generation, execution, termination, and termination of the second process. Controlling means for controlling the process. 2. A job control language analyzing means for analyzing a request in a job control language from a controlled process, a derived process control means for controlling a derived process based on a result of the analysis, The process control device according to claim 1, further comprising: a process list storing control information of the derived process. 3. The job control language analyzing means, the derived process generation request analyzing means for analyzing the derived process generation request, the derived process end waiting request analyzing means for analyzing the derivation end waiting request, and the derived process end 3. The job management unit according to claim 2, further comprising: a derived process end notification analysis unit that analyzes the notification request. 4. The derived process control unit receives the notification of the derived process generation request analysis unit, and copies the process list into process information of the derived process. Derived process end waiting means for receiving the notification of the analyzing means and waiting for the end of the derived process; Derived process end notifying means for receiving the notification of the derived process end notification request analyzing means and notifying the end of the derived process; 3. The job management unit according to claim 2, comprising: 5. The process list holds process derivation relationship information corresponding to a derivation process. Each of the process derivation relationship information includes a process identification number of the derivation process itself and a derivation for identifying a process that has requested derivation. 3. The job management unit according to claim 2, further comprising: an original process identification number; and process status information indicating each status of the derived process itself, such as execution wait, execution, end wait, and end.