JPH04220847A - Inter-computer communication system - Google Patents

Abstract

PURPOSE:To reduce a response time of a terminal equipment after a transmission request. CONSTITUTION:An input data from a terminal equipment 2 to a host computer 1 is received by a host communication job 14 through a data communication equipment 3, and sent to a host communication data management job 13 and the host communication data management job 13 writes the input data to a host common share map memory 12. The host common share map memory 12 and a terminal common share map memory 22 have a same input image by using the written data. Thus, in the case of data transmission from the terminal equipment 2 to the host computer 1, small quantity of data are sent to the host while being separated into several number of times by using the terminal communication data management job without awaiting a transmission request of the user (person in charge of input) to send a remaining small quantity of data upon an actual communication request.

Description

[Detailed description of the invention]

0001

[Field of Industrial Application] The present invention relates to a method for reducing the response time of a terminal device, particularly when a job running on a host computer and a job running on a terminal device are linked using a communication device. be.

0002

[Prior Art] Conventionally, when a job running on a host computer and a job running on a terminal device are linked using a communication device, the data communication is carried out at the time when the user requests all the related data. It was only then that the data could be sent.

0003

[Problem to be Solved by the Invention] In the linkage between the host job and the terminal job described above, the data communication is performed only after all related data has been input before the user requests transmission of that data to the host. At the same time, data was transferred, so if a large amount of data is input, that large amount of data must be sent at once, and the time required to wait for this data transmission is added to the response time. There is.

0004

[Means for Solving the Problems] The computer-to-computer communication method of the present invention includes a host data processing job for processing data in a host computer, a host communication job for handling communication, and reading and writing of processed data from memory.
A host communication data management job that manages data for sending and receiving, a host common map memory that can be read and written by the host data processing job and the host communication data management job, and a terminal input that performs actual data input and output on the terminal device. Output job, terminal communication job that handles communication, terminal communication data management job that reads input data and sends it to the host, and writes the data sent from the host to memory, terminal input/output job and terminal communication data management job. It is configured to include a terminal common map memory that can be read and written, and a shared map memory management table that manages data change information in the terminal common map memory.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be explained with reference to the drawings.

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

In the host computer 1, there is a host data processing job 11 that performs actual data processing, a host communication job 14 that takes charge of communication on the host side, and a host data processing job 14 that writes transmitted data to a host shared map memory 12 (described later) and reverses the process. host communication data management job 13 that sends read data from this memory to the host communication job, host data processing job 11, and host communication data management job 1.
3 and a host shared map memory 12 that can be read and written by both.

[0008] Also, inside the terminal device 2, there is a terminal input/output job 21 that manages input and output from the terminal, a terminal communication job 24 that takes charge of communication on the terminal side, and exchange of communication data between the terminal communication job 24 and the terminal communication job 24. A terminal communication data management job 23 that reads and writes the terminal shared map memory 22, which will be described later, can read and write from both the terminal input/output job 2-1 and the terminal communication data management job 23, and is equivalent to the host shared map memory or suitable for terminal processing. It consists of a terminal shared map memory 22 which has only the necessary parts in the same configuration, and a shared map memory management table 25 that manages change information of this terminal shared map memory 22.

Furthermore, there is a data communication device 3 that connects the host computer 1 and the terminal device 2 through communication.

Next, the operation of this embodiment will be explained.

It is assumed that in the host computer 1, a host data processing job 11, a host communication data management job 13, and a host communication job 14 are activated, and the host shared map memory 12 is secured. Here, a terminal input/output job 21 is started from the terminal device 2 to secure the terminal shared map memory 22, and a terminal communication data management job 23 and a terminal communication When the terminal communication job 24 is activated and the terminal communication job 24 issues a terminal connection request to the host computer 1, and this request is acknowledged by the host side, the terminal communication data management job 23 transfers the data to the terminal shared map memory. Enter the monitoring state of the management table 25,
At the same time as this monitoring state, the terminal input/output job 21 enters a state of waiting for input from an input device connected to the terminal device 2.

Input data from the terminal device 2 is immediately written to an appropriate location in the terminal shared map memory 22 by a terminal input/output job 21. At the same time, the information that the position has been changed is stored in the shared map memory management table 2.
Record in 5. While this input work is being performed, when a preset time has elapsed, the terminal communication data management job 23 starts operating and checks the information on the shared map memory management table 25. , reads the data on the terminal shared map memory 22, that is, the input data, according to the information. From the start to the end of this reading, the terminal shared map memory 2
2 and the terminal shared map memory management table 25 are prohibited from being written, and the input data from the terminal device 2 is stored in the buffer held by the terminal input/output job 21.

When the reading operation by the terminal communication data management job 23 is completed, the shared map memory management table 25 is initialized, the write prohibition state for this and the terminal shared map memory 22 is also released, and the input data stored in the buffer is removed. will be written. The terminal communication data management job 23 that receives input data from the terminal shared map memory 22 processes the input data as communication data, passes it to the terminal communication job 24, and requests transmission to the host computer 1. The input data is thus received by the host communication job 14 through the data communication device 3 and further sent to the host communication data management job 13, which writes the input data to the host shared map memory 12. With this written data, the host shared map memory 12 and the terminal shared map memory 22 have the same input image. Then, the amount of data is divided into several short amounts of data until a transmission request is issued by the inputter who is actually inputting the data.
Input data is sent to the host computer 1.

When a transmission request is issued by the input person who actually performs the input, the terminal input/output job 21 notifies the terminal communication data management job 23 of the occurrence of the transmission request, and upon receiving this notification, the terminal communication data management job 23 performs a final check on the change information in the shared map memory management table 25, reads input data on the terminal shared map memory 22 based on the final check, and sends the final input data to the terminal communication job 24, the data communication device 3, and the host. It is transmitted to the host computer 1 through the communication job 14. Furthermore, the occurrence of a transmission request is also notified to the host communication data management job 13. The final input data is written to host shared map memory 12 in the same manner as previous input data. In addition, the host communication data management job 13 that has been notified of the occurrence of a transmission request,
Furthermore, the host data processing job 11 is notified of this and the host data processing job is sent to the host shared map memory 12.
Start data processing by referring to it as input data.

In the host data processing job 11 , the processed connections are written to the host shared map memory 12 , and a transmission request to the terminal device 2 is issued from the host data processing job 11 to the host communication data management job 13 . The host communication data management job 13 sends the data on the host shared map memory 12 to the terminal device 2 through the host communication job 14, the data communication device 3, and the terminal communication job 24.
Send to. The terminal communication data management job 23 receives the transmitted data and writes the contents into the terminal shared map memory 22. Once it is completed, terminal input/output job 2
1 to notify completion of reception. Upon receiving this notification, the terminal input/output job 21 reads the required data from the terminal shared map memory 22 and outputs it to the output device installed in the terminal device 2 . Next, the terminal communication data management job 23 initializes the shared map memory management table 25 and enters a monitoring state, and at the same time, the terminal input/output job 21 enters a state of waiting for input from the input device. Thereafter, the above-described operations are repeated until the work is completed, and transmission and reception between the host terminals is performed.

[0016]

[Effects of the Invention] As explained above, when data is transmitted from a terminal to a host computer, a small amount of data is By dividing this data into several parts and sending it to the host side, when an actual communication request is issued, it is only necessary to send the remaining small amount of data, which reduces the response time of the terminal after the sending request. It has the effect of shortening it.

[Brief explanation of the drawing]

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

[Explanation of symbols]

1 host computer 2 terminal device 3 data communication device 11 host data processing job 12 host shared map memory 13 host communication data management job 14
Host communication job 21 Terminal input/output job 22 Terminal shared map memory 23 Terminal communication data management job 24 Terminal communication job

Claims (1)

[Claims] [Claim 1] A host data processing job that processes data on a host computer, a host communication job that handles communication, and a host communication data management job that reads and writes processed data from memory and manages data for sending and receiving. , a host common map memory that can be read and written by the host data processing job and the host communication data management job, and the terminal input/output job that performs the actual data input and output on the terminal device, the terminal communication job that handles communication, and the host common map memory that can be read and written by the host data processing job and the host communication data management job. A terminal communication data management job that reads data and sends it to the host, and writes the data sent from the host to memory, and a terminal common map memory that can be read and written by the terminal input/output job and the terminal communication data management job.
An inter-computer communication system comprising: a shared map memory management table for managing data change information of the terminal common map memory.