JPH05210520A - Registration system of message box - Google Patents

Abstract

PURPOSE:To use the message box by a system program which is previously placed in an asynchronous waiting state. CONSTITUTION:The 1st system program 1 which is previously placed in the asynchronous even waiting state uses a local waiting mechanism registering means 21 and a message informing means 22 of a message box to wait for messages of both a 2nd system program 3, which gains asynchronous access by the message box and a 3rd system program 4 which gains asynchronous access by a conventional asynchronous event waiting mechanism, by the same asynchronous even waiting mechanism.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information processing system that uses a message box to perform asynchronous notification between jobs or processes, and in particular, a system program that has previously performed asynchronous waiting registers a local waiting mechanism. As a result, the present invention relates to a method that enables asynchronous access using a message box.

[0002]

2. Description of the Related Art In a system program in which asynchronous waiting is performed in advance, when a message box is used to perform asynchronous notification between jobs or processes, according to the conventional method, an asynchronous event waiting mechanism is used. All the existing processes were changed to an asynchronous waiting method that uses a virtual asynchronous event waiting mechanism called a message box.

[0003]

The problems to be solved are: an asynchronous message notification method using a virtual asynchronous event waiting mechanism called a message box, and an asynchronous message notification method using a conventional OS-dependent asynchronous event waiting mechanism. The point is that both the notification method and the notification method cannot be used at the same time.

[0004]

The message box registration method of the present invention is characterized in that an asynchronous event waiting mechanism, which is independently prepared, is registered as a message box by a system program which has previously performed asynchronous waiting.

[0005]

The present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of a message box registration system according to the present invention. In FIG. 1, 1 is a first system program, 2 is a message box processing unit, 21 is a local queuing mechanism registration means, 22 is a message notification means, 3 is a second system program, and 4 is a third system program. ..

In FIG. 1, a first system program 1 is a system program that has been waiting for asynchronous events in advance, and uses an asynchronous waiting method using a message box and a conventional asynchronous event waiting mechanism depending on the OS. Waiting is performed by both the asynchronous message notification method described above. The first system program 1 secures a conventional OS-dependent asynchronous event queuing mechanism and uses the local queuing mechanism registration means 21 to logically define a message box and a conventional OS-dependent asynchronous event queuing mechanism. Relate to each other.

At this time, the message box processing unit 2
The local queuing mechanism registration means 21 assigns a message box identifier which is a system unique value. Here, the local notification waiting mechanism registration means 21
Then, it simply allocates the message box identifier and does not secure the asynchronous event waiting mechanism. In order to notify the message to the first system program 1, the second system program 3 notifies the message by designating a message box identifier registered in advance from the first system program 1. At this time, the message box processing unit 2 notifies the first system program 1 of the message from the message notifying unit EXIT by the message notifying unit 22 that matches the message box identifier. Here, the message notification means 22 that matches the message box is a notification method for the conventional asynchronous event waiting mechanism. As a result, the first system program 1 can receive a message from the second system program 3 by the queuing method of the conventional asynchronous event queuing mechanism.

Further, the third system program 4 is a conventional OS-dependent asynchronous event waiting mechanism,
The system program 1 is a system program that intends to make an asynchronous wait. The third system program 4 is the notification means of the conventional OS-dependent asynchronous event waiting mechanism, and the first system program 1 is the same as before.
The first system program 1 waits for the message by the conventional OS-dependent asynchronous event waiting mechanism. Therefore,
The third message program 4 can be received.
When the first system program 1 ends the asynchronous waiting, first, the message box is released. At this time, the message box processing unit 2 releases the asynchronous event waiting mechanism release EXIT. In this case, only the system unique message box identifier is allocated by the local queuing mechanism registration means 21, so only the message box identifier is released.
The asynchronous event waiting mechanism is not released.

After that, the first system program 1
The OS-dependent asynchronous event waiting mechanism is released as usual. That is, the local queuing mechanism registration means 2
1 allows a system program that has previously performed asynchronous wait to execute the asynchronous message notification method of job / process communication that uses a virtual asynchronous event wait mechanism called a message box.
It is possible to localize the remodeled portion to be changed and to coexist with the conventional asynchronous message notification method of job / interprocess communication using the asynchronous event waiting mechanism depending on the OS.

[0010]

As described above, according to the present invention, a system program which has previously made an asynchronous wait by the local notification means uses a virtual asynchronous event wait mechanism called a message box for job / job
Since the modification is performed so that the asynchronous message notification method for inter-process communication is executed, the remodeled part is localized and coexists with the asynchronous message notification method for job / inter-process communication that uses the conventional OS-dependent asynchronous event waiting mechanism. There is an advantage that can be made.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a message box registration system according to the present invention.

[Explanation of symbols]

 1, 3, 4 System Program 2 Message Box Processing Unit 21 Local Waiting Mechanism Registering Means 22 Message Notifying Means

Claims (3)

[Claims] 1. A first system program executing means for securing a waiting mechanism for an asynchronous event and waiting a message, a message box processing unit for registering a local waiting mechanism, and notifying a message in a message box, A second system program executing means for notifying a message by designating a message box identifier to the first system program executing means; and an asynchronous event waiting mechanism for the first system program executing means. A message box registration method including a third system program executing means for notifying a message. 2. The message box registration method according to claim 1, wherein the message box is configured to be in the asynchronous message notification method. 3. The local queuing mechanism registration means for registering the asynchronous event queuing mechanism prepared by the first system program, which has previously performed the asynchronous queuing, as a message box. Message box registration method.