JPH052544A - Host linked communication control system - Google Patents

Abstract

PURPOSE:To offer a communication control system capable of integrating plural host linked control means based upon conventional technique and flexibly linking to various status changes. CONSTITUTION:An I/O terminal equipment 10 is provided with a host linked definition file 40 describing various procedures for communication with a main frame host 12. The contents of the file 40 are read out by a host linked definition file reading means 32 and stored in a host linked definition table 33 and communication connection/disconnection control and communication control between the host 12 and the equipment 10 are executed based upon the stored contents.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication control system for performing real-time communication between an input / output terminal device such as a personal computer or a workstation and a mainframe host.

[0002]

2. Description of the Related Art Conventionally, as shown in the principle diagram of the prior art of FIG. 7, a host cooperation control means 30a in an input / output terminal device 10 includes a work processing means 31a, a host communication execution command generating means 35a, and a host connection disconnection. Control means 3
4a. And, for example, file 3 to be transmitted and received
The job processing means 31a related to 6a includes file attribute information, record length information, file transmission / reception repeat count information, file identification number information, transmission / reception classification information, file location information, and the like. When transmitting / receiving the file 36a between the input / output terminal device 10 and the mainframe host 12, the host communication execution command generating means 35a
The above-mentioned various kinds of information contained in the work processing means 31a are read, a host communication execution command is generated and sent to the mainframe host 12. The host communication execution command generation means 35a further monitors the execution state of the execution command in the mainframe host 12 and, via the business processing means 31a and the basic communication control means 20, connects the mainframe host 12 and the input / output terminal device 10 with each other. The transmission / reception of the file 36a between them is controlled. Further, the host connection / disconnection control means 34a reads the above various information and controls the connection or disconnection of communication between the mainframe host 12 and the input / output terminal device 10 via the business processing means 31a and the basic communication control means 20. I do.

[0003]

Therefore, when a plurality of files 36a, 36b ... Are transmitted and received between the input / output terminal device 10 and the mainframe host 12, the above-mentioned various information is transmitted and received by the files 36a, 36b. .. are unique to 36b .. .., it is necessary to create a plurality of host cooperation control means 30a, 30b ..

[0004]

Files to be transmitted and received although the communication procedure between the input / output terminal device 10 and the mainframe host 12 included in each host cooperation control means is common. Creating the host cooperation control means 30a, 30b ... For each of the 36a, 36b.

When the following situations occur, it is necessary to newly create or change the host cooperation control means. (1) Input / output terminal device 10 and mainframe host 1
When the file name of the file to be sent / received to / from 2 is changed (2) When the file attributes other than the record length of the file to be sent / received are changed (3) How many times the file is sent / received, whether it should be sent or not When the location of the file to be transmitted / received is changed (4) When the environment of the mainframe host is different The present invention has been made in view of the above problems, and integrates a plurality of host cooperation control means. It is an object of the present invention to provide a communication control method capable of flexibly coping with various situation changes.

[0006]

The present invention employs the following means in order to solve the above problems of the prior art.

As shown in the principle diagram of the present invention in FIG. 1, the input / output terminal device 10 includes a host cooperation definition file 40 which describes various procedures for communicating with the mainframe host 12, and a host cooperation control means. 30 and a basic communication control means 20 are provided. Host cooperation control means 30
Is a host cooperation definition file reading means 32, a host cooperation definition table 33, and a host connection disconnection control means 34.
And host communication execution command generation means 35. The contents of the host cooperation definition file 40 are read by the host cooperation definition file reading means 32 and stored in the host cooperation definition table 33. Based on the contents stored in the host cooperation definition table 33, the connection / disconnection control of communication between the mainframe host 12 and the input / output terminal device 10 is controlled by the host connection / disconnection control means 34 via the basic communication control means 20. Done. Further, based on the contents stored in the host cooperation definition table 33, the host communication execution command generation means 35 generates a host communication execution command, and the basic communication control means (2
0), communication control between the mainframe host 12 and the input / output terminal device 10 is performed.

The contents of the host cooperation definition file 40 are the host command procedure definition record for specifying the data set name in which the execution command procedure executed by the mainframe host 12 is stored, and the host cooperation control means 30. Preferably, it comprises a data file definition record that specifies detailed information of a file transmitted and received by the above, and a process definition record that specifies a communication control procedure by the host communication execution command generating means.

It is desirable that the data file definition record contains file attribute information and record length information, and the processing definition record contains file identification number information, transmission / reception classification information and file location information.

[0010]

The host cooperation definition file is a file that is provided in each of the host cooperation control means in the prior art and that collects various information unique to the transmission / reception file. By storing such various information in a host cooperation definition file separate from the host cooperation control means instead of including it in each individual host cooperation control means, it is not necessary to create a host cooperation control means for each file to be transmitted and received. The host cooperation control means can be integrated. Further, even when it is necessary to change various kinds of information, it is not necessary to change the contents of the host cooperation control means, only the contents of the host cooperation definition file need be changed.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 2 shows the configuration of the embodiment of the present invention. As shown in FIG. 2, the input / output terminal device 10 includes a host cooperation definition file 40 that describes various procedures for communicating with the mainframe host 12, a host cooperation control unit 30, and a basic communication control unit 20. Is provided. The host cooperation control means 30 reads the host cooperation definition file reading means 32.
A host connection definition table 33, a host connection disconnection control means 34, and a host communication execution command generation means 35. The host cooperation control means 30 includes a host cooperation definition file reading means 32 and a host connection disconnection control means 3.
4 and the host communication execution command generation means 35 are further provided with a business processing means 31. The basic communication control means 20 includes a host communication control means 21, a message transmission / reception control means 22, and a file transmission / reception control means 23.
It consists of The input / output terminal device 10 has, for example, files 36a and 36b to be transmitted / received.

The contents of the host cooperation definition file 40 can be composed of the following records. (A) Host command procedure definition record for specifying the data set name in which the execution command procedure executed by the mainframe host 12 is stored: The record format is, for example, PROC = data set name You can

(B) Data file definition record designating information of files transmitted / received by the host cooperation control means 30: The record format is, for example, FILE = file identification number, file name, file format information, code conversion information, record It can be format information and record length information.

(C) Process definition record designating a communication control procedure by the host communication execution command generating means: The record format is, for example, TYPE = process identification number, execution procedure member name.
[, File identification number information, transmission / reception classification information, file location flag information] [, file identification number information, transmission / reception classification information, file location flag information] ...

A concrete example of each record is shown in FIG. Figure 3
Inside, lines described in the format of “/ * ... * /” are comment record lines. The host cooperation definition file shown in FIG. 3 is expanded in the host cooperation definition table 33 as shown in FIG. 4, and an outline of the processing flow of the send / receive file according to the embodiment of the present invention shown in FIG. 2 is shown in FIG. It will be explained based on.

When the communication processing between the mainframe host 12 and the input / output terminal device 10 is started by the business processing means 31, a command from the business processing means 31 causes the host cooperation definition file reading means 32 to change to the host. The contents of the cooperation definition file 40 are read and the contents related to the host cooperation definition table 33 are stored (step S11). Based on the stored contents, the host connection disconnection control means 3
4 performs a predetermined communication connection procedure to the mainframe host 12 and establishes communication between the input / output terminal device 10 and the mainframe host 12 (step S).
12). Based on the host command procedure definition record in the contents stored in the host cooperation definition table 33, the host communication execution command generation means 35 generates a data set name character string, and the main frame host 12 receives this character string ( In the specific example shown in FIG. 3, A123
4. FEIMAS. CMDPROC) is transmitted. As a result, the execution command in the mainframe host 12 is activated (step S13). The host communication execution command generation means 35 performs a transmission / reception execution command generation process of a file to be transmitted / received based on the data file definition record and the process definition record stored in the host cooperation definition table 33 (step S14), and also performs main processing. The process of monitoring the execution status of the execution command in the frame host 12 is performed (step S15). Further, the host communication execution command generation means 35 performs message processing or file transfer processing (steps S16 and S17).
The steps from S14 to S17 are repeated by the number of pairs of [, file identification number information, transmission / reception classification information, file location flag information] described in the process definition record shown in FIG. When all transmission / reception processing is completed,
The host connection disconnection control means 34 disconnects communication between the input / output terminal device 10 and the mainframe host 12 (step S18).

Next, the details of the execution command generation processing by the host communication execution command generation means 35 will be described with reference to the flowchart of FIG. First, after the host connection process is performed (step 101), it is determined whether the connection process is normally completed (step 102), and if it is normally completed, a host execution command character string is created (step 103). ). As the host execution command character string, for example, "EXA1234.FAIMAS.CMDP"
ROC (BMS1UL) ”is created.

This character string is transmitted to the host and the host program is executed (step 104). Next, the number of file transfer repetitions i (for example, i = 3) is set (step 105).

Until the step 106, which is the end of the repeat of the file transfer, is YES, the file transfer start waiting (step 107) and the presence / absence of the start request (step 10)
8) Read the file transfer parameter from the table and set it (step 109), start / receive file transfer command (step 110), wait for file transfer end (step 111), and determine whether or not file transfer end (step 11).
Each step of 2) is performed.

Then, in the case other than the above, the processing ends (step 113).

[0021]

As described above, in the present invention, since the host cooperation definition file is provided separately from the host cooperation control means, a plurality of files are transmitted / received between the input / output terminal device and the mainframe host. Even in this case, it is not necessary to create the host cooperation control means for each transmission / reception file, and the host cooperation control means can be integrated.

Further, when the file name of the file to be transmitted / received is changed, the file attribute is changed, the number of times of transmission / reception of the file, whether to transmit or receive, the location of the file to be transmitted / received, etc. are changed. Or, even when the environment of the mainframe host is different, there is no need to newly create or change the host cooperation control means, only the host cooperation definition file needs to be changed, and a flexible communication control method can be constructed. .

[Brief description of drawings]

FIG. 1 is a principle diagram of the present invention.

FIG. 2 is a diagram showing an embodiment of the present invention.

FIG. 3 is a diagram showing a specific example of various records of a host cooperation definition file.

FIG. 4 is a diagram showing an example of expansion into a host cooperation definition file and a table.

5 is a flow chart showing the operation of the embodiment shown in FIG.

FIG. 6 is a flowchart showing details of execution command generation processing.

FIG. 7: Principle diagram according to conventional technology

[Explanation of symbols]

10 Input / output terminal 12 Mainframe Host 20 Basic communication control means 30 Host linkage control means 31 Business processing means 32 Host linkage definition file reading means 33 Host linkage definition table 34 Host connection disconnection control means 35 Host communication execution command generation means 36a, 36b send / receive file 40 Host linkage definition file

Claims (3)

[Claims] 1. A communication control system for performing real-time communication between an input / output terminal device (10) such as a personal computer or a workstation and a mainframe host (12), the input / output terminal device (10). ), A host cooperation definition file (40) describing various procedures for communicating with the mainframe host, a host cooperation control means (30), and a basic communication control means (20) are provided.
The host cooperation control means (30) includes a host cooperation definition file reading means (32) and a host cooperation definition table (3).
3), a host connection disconnection control means (34), and a host communication execution command generation means (35), and the contents of the host cooperation definition file (40) are read by the host cooperation definition file reading means (32). Then, the basic communication control means (2) is stored in the host cooperation definition table (33), and based on the contents stored in the host cooperation definition table (33), by the host connection disconnection control means (34).
0) to control connection or disconnection of communication between the mainframe host (12) and the input / output terminal device (10), and execute host communication based on the contents stored in the host cooperation definition table (33). Command generation means (35)
A communication control method for generating a host communication execution command and controlling communication between the mainframe host (12) and the input / output terminal device (10) through the basic communication control means (20). . 2. The contents of the host cooperation definition file (40) is a host command procedure definition for designating a data set name in which an execution command procedure executed by the mainframe host (12) is stored. A record, a data file definition record that specifies information on a file to be transmitted and received by the host cooperation control means (30), and a process definition record that specifies a communication control procedure by the host communication execution command generation means (35). The communication control system according to claim 1, wherein: 3. The data file definition record includes:
3. The communication control method according to claim 2, wherein file attribute information and record length information are included, and the process definition record includes file identification number information, transmission / reception classification information, and file location information.