JPS6267656A - Remote job entry command control system - Google Patents

Abstract

PURPOSE:To distribute answer messages and to control display operation efficiently and accurately by recognizing the end of an answer message to an instruction uniformly with a special code indicating the end of an answer message sent from a host computer. CONSTITUTION:When an operator of a display terminal device 8-1 inputs an instruction DJ for a remote job entry RJE, the instruction transmission controller 4 of a decentralized computer 7 reports that to an instruction controller 3 and the controller 4 receives a transmission ready report from the controller 3 and transmits the instruction DJ to the computer 2. Then when an answer message to the instruction DJ is sent from the computer 2 to the computer 7, a message display device 6 transfers an answer message DJ-1 to the device 8-1 which sends the instruction. When the special code indicating the end of the message is sent to a message end decision device 5, the device 5 judges the end and reports that to the device 3, which informs the device 8-1 of that. Consequently, a next instruction is sent from a device 8-2 to the computer 2 through the device 4.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a remote job entry (hereinafter referred to as RJE) command control system, and particularly to an RJE command control system in a distributed processing system.

Prior Art In order for each terminal operator of a plurality of display terminal devices connected to a distributed computer to be able to operate the display terminal devices as if they were communicating one-on-one with the host computer, RJE commands must be input in the order in which they are input from the display terminal devices. Each time an RJE command is sent to the host computer and a response message sent once or several times is received, this response message is displayed on the display terminal device, and when all response messages have been received and displayed. , the RJE commands input from a plurality of display terminal devices are processed by performing similar processing on the next input RJE command.

At this time, since there is no special code indicating the end of the response message, the problem is how to determine whether all response messages have been received. Therefore, as one of the conventional judgment methods of this type, an RJE command input from one display terminal device is sent to the host computer, and each time a response message is received, a certain period of time is monitored. If no response message is received from the host computer during that time, there is a method of determining that the response message ends there.

In the conventional method described above, nothing is done during time monitoring, so the terminal operator is forced to wait during that time, which reduces the processing capacity of the distributed computer and, in turn, reduces the processing capacity of the entire distributed processing system. Also, the time it takes for a response message to be sent from the host computer depends on the load on the host computer, so
It is not accurate to judge based on a fixed monitoring time determined on the distributed computer side.

OBJECTS OF THE INVENTION Accordingly, an object of the present invention is to enable the host computer to transmit the end of the response message corresponding to the RJE command input from the display terminal by adding a special code indicating the end of the response message. The purpose of this invention is to provide an RJE command control method that can be efficiently and accurately performed on the distributed computer side by uniformly making decisions using the special code.

Structure of the Invention According to the present invention, a distributed computer, a plurality of terminal devices connected to the distributed computer, and a first-in, first-out method are used to send response messages to the distributed computer in response to remote job entry commands sequentially received from the distributed computer. A remote job entry command control method in a distributed processing system comprising a host computer having the function of processing a remote job entry command sent from the distributed computer to the host computer and creating a response message to the command and a command management means that adds a special code indicating the end of the response message and sends it to the distributed computer, and a message end that determines the end of the response message sent from the host computer based on the special code. determining means, and sequentially processing remote job entry commands sent to a host computer each time the special code is determined by the message end determining means. method is obtained.

Example Hereinafter, the present invention will be explained in detail using the drawings.

Referring to FIG. 1, one embodiment of the present invention has a host computer 2 including command processing means 1;
Also, command management means 3. Command transmission control means 4. It has a distributed computer 7 having a message completion determining means 5 and a message display means 6. A distributed processing system is configured by connecting the distributed computer 7 and the display terminal devices 8-1, 8-2 through communication lines.

In FIG. 1, in order to avoid complication of the drawing, only one host computer, one distributed computer, and two display terminal devices are shown, but there may be multiple host computers. A plurality of distributed computers may be connected to each host computer, and three or more display terminal devices may be further connected to each distributed computer.

In FIG. 1, display terminal device 8-1゜8-2
consists of a CRT, a keyboard, a control section for these, and an input/output interface section (each not shown). The terminal operator operates the keyboard, inputs the RJE command addressed to the host computer 2, and CR returns the response message.
Display on T.

The command management means 3 includes a plurality of display terminal devices 8
-1.8-2 performs management for displaying the RJE command response message requested by the RJE command to the RJE command input source. That is, the display terminal device 8-1.
When an RJE command is input from 8-2, the name of the display terminal device is memorized and the RJE command currently being processed is
The name of the display terminal device from which the command was input is also stored, and management is performed by notifying the command transmission control means 4 whether transmission is possible or not based on the response message end notification from the message end determination means 5.

The command transmission control means 4 includes a display terminal device 8-
1. When the RJE command is input from 8-2, the command management means 3 is notified of the name of the display terminal device from which the command was input, and the command management means 3 is asked whether or not to send the RJE command to the host computer 2. Inquire. If transmission is possible, it is transmitted to the host computer 2, and if transmission is not possible, transmission is held until notification from command management means 3 that transmission is possible.

The command processing means 1 interprets the RJE command sent from the command transmission control means 4 of the distributed computer 7, creates a response message after processing each RJF command, and finally indicates the end of the message. A special code is added and transmitted to the distributed computer 7 that is the input source.

The message end determination means 5 receives response messages from the host computer 2, and when it receives a special code indicating the end of the response message, it determines that the response message has ended, and the message display means 6 and command management means 3 shall be notified to that effect.

The message display means 6 inquires of the command management means 3 about the source of the command input, and displays the display terminal device 8-1. to be displayed.

Figure 2 shows the case where the RJE command “DJ” (hereinafter referred to as command DJ) is input from the display terminal device 8-1 and the RJEDv command “D○” (hereinafter referred to as command DO) is input from the display terminal device 8-2. FIG. 3 is a diagram illustrating an example of the flow of information over elapsed time.

The terminal operator of the display terminal device 8-1 issues command D.
When J is input, the command transmission control means 4 notifies the command management means 3 of the display terminal devices 8 to 1, and also inquires whether the command may be transmitted to the host computer 2. When receiving a notification from the command management means 3 that the command can be sent, the command DJ is sent to the host computer 2.

Next, when the terminal operator inputs the command D○ from the display terminal bag @8-2, the command transmission control means 4 notifies the command management means 3 of the display terminal device 8-2 and sends it to the host computer 2. The command management means 3 is asked whether it is OK or not. The command management means 3 determines that the command DJ input from the display terminal device 8-1 is currently being processed, and notifies the command transmission control means 4 to wait for command transmission.

Response message to command DJ “MESSAGE”
, DJ-1" (hereinafter referred to as message DJ-1), the message end determining means 5 issues a special code 'C0NTR0L C0DE, EO indicating the end of the message.
D", the message is passed to the message display means 6. The message display means 6 inquires of the command management means 3 about the source of the command input, and displays the message D J-1 on the display terminal bag @8-1.

Next, the response message “”MESSAGE, DJ-2”
(hereinafter referred to as message DJ-2), it is processed in the same way as in the case of hawk...nosage DJ-1. next,
Special code indicating the end of the message ``'C0NTR0L''
CO[IE, EOD'' is received, the message end determining means 5 determines whether the response message has ended and notifies the message display means 6 and command management means 3 of this fact.

The command management means 2 notifies the cloak transmission control stage that the next RJE command may be transmitted to the host computer 2.

With the above operations, the processing for the command DJ input from the display terminal device 8-1 is completed.

Next, the command transmission control means 4 transmits the command Do to the host computer 2. Thereafter, the same processing is performed.

As described in detail, according to the present invention, by uniformly recognizing the end of a response message to a command using a special code indicating the end of a response message sent from a host computer, distributed computers can This has the effect of efficiently and accurately controlling the sorting and display of response messages from the host computer in response to RJE commands directed to the host computer input from a plurality of display terminal devices connected to the computer.

[Brief explanation of drawings]

FIG. 1 is a block diagram of an embodiment of the present invention, and FIG. 2 is a diagram showing the flow of information based on the operation of the embodiment of the present invention over time. Explanation of symbols of main parts

Claims (1)

[Claims] Consists of a distributed computer, a plurality of terminal devices connected to the distributed computer, and a host computer having a function of transmitting response messages to the distributed computer on a first-in, first-out basis in response to remote job entry commands sequentially received from the distributed computer. A remote job entry command control method in a distributed processing system, which processes a remote job entry command addressed to a host computer sent from the distributed computer, creates a response message to this command, and also terminates the response message. a command processing means for adding a special code indicating to the distributed computer and transmitting the response message to the distributed computer; and a message end determination means for determining the end of the response message sent from the host computer based on the special code. 1. A remote job entry command control method, wherein a remote job entry command addressed to a host computer is sequentially processed each time the special code is determined by the message end determination means.