JPH02280252A - Dynamic registration system for remote node condition management routine - Google Patents

Abstract

PURPOSE:To immediately start a service when a remote node rises by executing the registration of a remote node condition management routine at the time of an on-line start. CONSTITUTION:When the registration of a remote node condition management routine 6 or 7 is executed from an on-line service program 1 or 2 to a remote node condition management routine registration program 3 at the time of the on-line start, the information of a reporting destination, etc., is developed to a remote node condition reporting destination table 5. When the change of the condition of the remote node is detected by a communication control program 8, the fact is passed through a remote node condition reporting program to the remote node condition reporting destination table 5, and the remote node condition management routines 6 and 7 report the stop and resumption of the service to the service programs 1 and 2. Thus, the service can be immediately started when the remote node rises.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a remote node state management scheme, and more particularly to a dynamic registration scheme for remote node state management routines.

[Conventional technology]

Conventional remote node status management is based on the existing communication control program that manages the remote node status when each service is started online. The inquiries were repeated periodically.

[Problem to be solved by the invention]

In the conventional remote node status management described above, an online service determines whether communication is possible for the existing communication control program that manages the status of the remote node, and if the remote node is not started, , since it is a method of waiting for a certain period of time, there is a drawback that communication with the remote node cannot be started at the same time as the remote node starts up.

In particular, when it is assumed that many nodes communicate with a large number of remote nodes and are blocked for a long period of time, it is necessary to lengthen the waiting period in order to reduce the overhead of the arranging process. However, there was a problem in that there was a considerable delay in the start of communication with the remote node.

[Means to solve the problem]

The configuration of the dynamic registration method of the remote node status management routine of the present invention is such that an existing communication control program that centrally manages the status of a remote node in an environment where multiple online services are running is used to remotely control the status of each online service. In the method of notifying the node status, a remote node status management routine for each online service is dynamically registered in the existing communication control program, and when the status of the remote node changes, the node status management routine for each online service is registered. A feature of the service is that calling it provides an opportunity to start the service.

〔Example〕

Next, the present invention will be explained with reference to the drawings. FIG. 1 is a diagram showing the configuration of an embodiment of the present invention.

In the figure, 1.2 represents a program that performs a separate online service, 3 represents a program that registers a remote node status management routine, and 4 registers for each service each time the status of a remote node changes. A program for notifying the remote node state management routines 6 and 7 that are being executed, 5 is a table in which notification destinations of registered remote node state management routines are expanded, and 8 is a communication control program.

From online service program 1 or 2 to remote node status management routine registration program 3, remote node status management routine 6 or 7 at online start
If there is a registration, remote node status notification destination table 5
Expand information such as notification destination.

When the communication control program 8 detects a change in the status of a remote node, it notifies the remote node status management routine 6.7 of the change based on the remote node status notification destination table 5 via the remote node status notification program. The node state management routine 6.7 notifies the service program 1.2 of stopping and restarting the service.

〔Effect of the invention〕

As explained above, the present invention registers a remote node status management routine at the time of starting online, thereby realizing control that notifies the service program immediately when the remote node starts up. Furthermore, even in online services where a remote node is in a blocked state for a long period of time, there is an effect that CPU overhead can be eliminated because there is no need to make arrangements.

Remote node status management routine registration program, 4.
...Remote node status notification program, 5...Remote node status notification destination table, 6.7...Remote node status management routine for each service, 8...Communication control program.

Claims (1)

[Claims] In a method of notifying remote node status to each online service from an existing communication control program that centrally manages the status of remote nodes in an environment where multiple online services can run, the online service is sent to the existing communication control program. Dynamically registering a remote node state management routine for each online service, and calling the node state management routine for each online service when the remote node state changes, providing an opportunity to start a service. Dynamic registration method for state management routines.