JPH04274524A - System for controlling inter-process communication - Google Patents

Abstract

PURPOSE:To enable process of an operating system to control and communicate with the process of another operating system without using any communication controller and, at the same time, to prevent a decline in the processing speed. CONSTITUTION:Data exchange control means 4a and 4b respectively control data reception requests for transferring data from the processes of the opposite operating systems to the processes of their own operating systems and data transmission requests for transferring data from the processes of their own operating systems to the processes of opposite operating systems. A data transmission/reception requesting content management file 6 stores the contents of data reception and transmission requests. Inter-CPU interruption control means 3a and 3b control hardware interruption between CPUs.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inter-process communication control system in a computer system that is composed of a plurality of central processing units, each of which can execute a different operating system.

0002

[Background Art] Conventionally, in a computer system that is composed of a plurality of central processing units and each central processing unit is capable of executing a different operating system, communication control of processes between different operating systems is performed. , it was necessary to perform this via an external device such as a communication control device.

0003

[Problems to be Solved by the Invention] In the above-mentioned conventional inter-process communication control method for computer systems, communication control of processes between different operating systems is performed via an external device such as a communication control device. This method has disadvantages in that a reduction in processing speed due to the use of a control device is unavoidable, and it is necessary to set a special communication control procedure for communication.

An object of the present invention is to be able to communicate with and control processes on other operating systems without using a communication control device and performing complicated procedures, and also to prevent a decrease in processing speed. The purpose of this invention is to provide an inter-process communication control method that allows for

[0005]

[Means for Solving the Problems] The inter-process communication control method of the present invention provides for inter-process communication in a computer system that is composed of a plurality of central processing units and in which each central processing unit executes a different operating system. In the control method, each central processing unit (A
) Data exchange control means for controlling a data reception request to transfer data from a process of another operating system to a process of the own operating system, and a data transmission request to transfer data from a process of the own operating system to a process of another operating system; B) a data transmission/reception request content management file that stores the contents of the data reception request and data transmission request, (C
) Inter-Central Processing Unit interrupt control means for controlling hardware interrupts between the Central Processing Units.

[0006]

Embodiments Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the inter-process communication control method of the present invention.

The inter-process communication control system shown in FIG.
2, and a main storage device 2.

[0009] The main memory 2 is an operating system "
This area can be referenced from both the operating system "1" and the operating system "2", and includes the data transmission/reception request content management file 5. The central processing unit 1a includes an inter-central processing unit interrupt control means 3a, a data exchange control means 4a, and a process 6a.
~6b included. Further, the central processing unit 1b includes an inter-central processing unit interrupt control means 3b, a data exchange control means 4b, and processes 7a to 7b.

The data transmission/reception request content management file 5 is as follows:
Processes 6a to 6b running on each of operating system "1" and operating system "2"
, 7a to 7b are used to communicate with processes on other operating systems, and store destination process identifiers, function codes, buffer information, etc. In addition, a number is assigned to each block of interprocess communication.

Next, processes 6a to 6b to process 7
The operation will be explained by taking as an example a case where a data transfer request (a data transmission request and a data reception request) is made to a to 7b.

In this case, the data exchange control means 4a controls the central processing unit 1 issued from its own operating system.
Data transmission request to the operating system of b (request to send data from own operating system to other operating system), and data reception request (
This will process requests for data transmission from the own operating system to other operating systems. Further, the data exchange control means 4b includes the central processing unit 1a.
The above-mentioned requests made from the operating system to the own operating system will be processed.

First, the case where the processes 6a to 6b issue a transmission request to the processes 7a to 7b to the data exchange control means 4a will be described.

The data exchange control means 4a secures an empty block in the data transmission/reception request content management file 5, and stores the function code and buffer information to be notified to the processes 6a to 6b in the secured empty block. The block number is notified to the inter-CPU interrupt control means 3b by the inter-CPU interrupt control means 3a at the time of a hardware interrupt from the central processing unit 1a to the central processing unit 1b.

On the other hand, the inter-Central Processing Unit interrupt control means 3b, which has received a hardware interrupt due to the processing of the above-mentioned transmission request, transfers the block number of the data transmission/reception request content management file 5 notified at the time of the interrupt to the data exchange control means. Notify 4b. The data exchange control means 4b refers to the notified corresponding block and obtains the partner process identifier. At this time, even if a reception request is issued from the processes 7a to 7b, the process 7a issuing the reception request
7b, if there is a process among the processes 7a to 7b that corresponds to the destination process identifier secured at the time of the data transmission request on the central processing unit 1a side, the data transmission/reception request content is sent to that process. The contents of the corresponding block in the management file 5 (function code, buffer information) are notified. Then, data is transferred from the operating system process of the central processing unit 1a to the operating system process of the central processing unit 1b.

Next, a case will be described in which the processes 6a to 6b issue a data reception request to the data exchange control means 4a to receive data from the processes 7a to 7b.

Process 6 of own operating system
If there is no data transfer request from the processes 7a to 7b of the operating system of the central processing unit 1b to a to 6b, a reception request issued by the processes 6a to 6b to receive data from the processes 7a to 7b. is held, and data is transferred from the operating system process of the central processing unit 1b to its own operating system process.

At this time, if the processes 6a to 6b of the own operating system have already received a data transfer request from a process of another operating system, the data exchange control means 4a handles the above-mentioned transmission request on the side of the other operating system. The processes 6a to 6b are notified of the contents of the corresponding block of the data transmission/reception request content management file 5, which has already been secured by the same means as in the above case. In this case, data is transferred from the processes 7a to 7b of the operating system of the central processing unit 1b to the process of its own operating system.

[0019] In the above, the data reception request of the own operating system, which is made to wait until the data transfer from the other operating system is performed, is made after the data transfer from the other operating system has been performed.

The above explanation is about the control method for inter-process communication from the operating system 1 to the operating system 2, but the control method from the operating system 2 to the operating system 1 is performed in the same way.

[0021] In this way, it is possible to communicate with and control processes on other operating systems without having to perform complicated procedures using a communication control device, which is an external device, and to perform communication processing. Since a communication control device is not used in the process, a decrease in processing speed can also be prevented.

[0022]

As explained above, the inter-process communication control method of the present invention can be used to control interrupt control means between central processing units, data exchange control means, and data transmission/reception requests in a computer system running a plurality of operating systems. By providing a content management file, you can communicate with and control processes on other operating systems without using a communication control device and performing complicated procedures. Since no equipment is used, this method has the effect of preventing a decrease in processing speed.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of an inter-process communication control method of the present invention.

[Explanation of symbols]

1a, 1b central processing unit 2 main storage device 3a, 3b inter-central processing unit interrupt control means 4a,
4b Data exchange control means 5 Data transmission/reception request content management files 6a to 6b Processes 7a to 7b Processes

Claims (1)

[Claims] Claim 1. In an inter-process communication control method in a computer system configured with a plurality of central processing units, each of which runs a different operating system, each central processing unit:
(A) Data exchange control means that controls a data reception request to transfer data from a process of another operating system to a process of the own operating system, and a data transmission request to transfer data from a process of the own operating system to a process of another operating system. , (B) a data transmission/reception request content management file that stores the contents of the data reception request and data transmission request;
(C) An inter-process communication control system characterized by comprising: inter-central processing unit interrupt control means for controlling hardware interrupts between the central processing units.