JPH0812649B2 - General-purpose virtual terminal control method - Google Patents

Description

The present invention relates to a general purpose virtual terminal control system for data communication between a general purpose terminal and an online job. In particular, it relates to a general-purpose virtual terminal control method for pool management of a virtual terminal control table for associating a general-purpose terminal with a virtual terminal.

〔Overview〕

The present invention, in a general-purpose virtual terminal control method for data communication between a general-purpose terminal and an online job, allocates a virtual terminal control table linked to the general-purpose terminal control table for each connection request from the general-purpose terminal, By setting the number of terminal control tables to be equal to the number of terminals that are connected to online jobs and operate at the same time, instead of the number of mounted terminals, the virtual terminal control table can be managed without using unnecessary device resources. It is a thing.

[Conventional technology]

Correspondence between a conventional general-purpose terminal and a virtual terminal that is a logical terminal that the application program is aware of is obtained by specifying the corresponding general-purpose terminal when setting the virtual terminal environment, and the general-purpose terminal and the virtual terminal have a one-to-one correspondence. It was attached.

[Problems to be solved by the invention]

However, in such a conventional general-purpose virtual terminal control method, the virtual terminal control table corresponding to all general-purpose terminals connected to the online job of the host computer is fixedly required, and therefore unnecessary device resources are required. There was a drawback to using.

The present invention solves the above-mentioned drawbacks, and an object of the present invention is to provide a general-purpose virtual terminal control method capable of pool management of a virtual terminal control table without using unnecessary device resources.

[Means for solving problems]

The present invention, in a general-purpose virtual terminal control method for performing data transfer processing between a plurality of general-purpose terminals and online jobs, performs data communication simultaneously with the virtual terminal control table pool and the online jobs that are less than the number of corresponding general-purpose terminals. Pool creation means for pooling as many virtual terminal control tables as possible into this virtual terminal control table pool, establishment management means for notifying the online job of a session establishment request in response to a connection request from the general-purpose terminal, and this establishment This establishment management means after receiving a notification from the management means, acquiring a virtual terminal control table that is pooled in the virtual terminal control table pool and is not used To the release request from the general-purpose terminal. Virtual terminal control obtained after disconnecting the link between the release management means for notifying the line job of the session release request and the general-purpose terminal control table corresponding to the general-purpose terminal that has received the release request and has issued the release request And a return unit for returning the table to the virtual terminal control table pool.

[Action]

The pool creating means pools a number of virtual terminal control tables in the virtual terminal control table pool so that the number of online jobs that can be performed at the same time as the number of online jobs is smaller than that of the corresponding general purpose terminal. In response to the connection request from the general-purpose terminal, the establishment management means notifies the acquisition means of this. The acquisition means acquires a virtual terminal control table that is not pooled and used in the virtual terminal control table pool, and after linking with the general-purpose terminal control table corresponding to the general-purpose terminal that has made the connection request,
Give to established management means. The establishment management means notifies the session establishment request based on this virtual terminal control table.

In response to the release request from the general-purpose terminal, the release management means notifies the online job of the session release request. Further, the return means, which has received the notification of the release management means, returns the virtual terminal control table acquired after disconnecting the link with the general-purpose terminal control table corresponding to the general-purpose terminal that has issued the release request, to the virtual terminal control table pool. By the above operation, the virtual terminal control table can be managed without using unnecessary device resources.

〔Example〕

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

FIG. 1 is a block diagram of a general-purpose terminal control device according to an embodiment of the present invention. In FIG. 1, the general purpose virtual terminal control device comprises a virtual terminal definition file 1, a virtual terminal control table pool creating means 2, a general purpose terminal 3, a communication line 4, and a host computer 5. Host computer 5
Is a management terminal 6 for establishing a session when a connection request to the host computer 5 is input from the general-purpose terminal 3 via the communication line 4, and a virtual terminal control table for connecting to the establishment management means 6 and acquiring a virtual terminal control table. An acquisition unit 7, a control table pool 8 connected to the virtual terminal control table acquisition unit 7, and a release management unit 12 for releasing a session when a release request for the host computer 5 is input from the general-purpose terminal 3 via the communication line 4. , The release management means 12 and the virtual terminal control table returning means 13 connected to the control table pool 8 for returning the acquired virtual terminal control table, the establishment management means 6 and the release management means 12
An online job 14 connected to and performing session establishment and release.

The operation of the general-purpose virtual terminal control device having such a configuration will be described. FIG. 2 is a flow chart of the virtual terminal control table pool creating means of the general purpose virtual terminal control device of the present invention. FIG. 3 is a flowchart of the establishment management means of the general-purpose virtual terminal control device of the present invention. FIG. 4 is a flow chart of the virtual terminal control table acquisition means of the general purpose virtual terminal control device of the present invention. FIG. 5 is a flow chart of the release management means of the general-purpose virtual terminal control device of the present invention. Sixth
The figure is a flowchart of the virtual terminal control table returning means of the general-purpose virtual terminal control device of the present invention.

In FIG. 1, the user defines in the virtual terminal definition file 1 the maximum number of virtual terminals that can simultaneously perform online job and data communication without being aware of the corresponding general-purpose terminal 3 when setting the virtual terminal environment.

After that, when the virtual terminal control table pool creating means 2 is started, the virtual terminal definition file 1 is created as shown in FIG.
Virtual terminal control table pool that is a collection of a defined number of virtual terminal control tables 11 that are read from the virtual terminal information () () and are not linked to the general-purpose terminal 3.
Create 10 ().

When there is a connection request from the general-purpose terminal 3 to the host computer 5 via the communication line 4, the establishment management means 6 is notified. As shown in FIG. 3, the establishment management means 6 calls the virtual terminal control table acquisition means 7 ().

The virtual terminal control table acquisition means 7 acquires the general-purpose terminal control table 9 corresponding to the general-purpose terminal 3 that has made a connection request as shown in FIG. 4 (), and the virtual terminal control that is not used for connecting the general-purpose terminal 3 One virtual terminal control table 11 is removed from the virtual terminal control table 10 which is a collection of the tables 11 and the virtual terminal control table 11 is acquired (). Further, information indicating the area of the virtual terminal control table 11 is set in the general-purpose terminal control table 9, and conversely, information indicating the area of the general-purpose terminal control table 9 is set in the virtual terminal control table 11, Link with 11 (). After this, the virtual terminal control table 11 linked to the establishment management means 6 is notified (). Next, in FIG. 3, the establishment management means 6 notifies the online job 14 of the session establishment request based on the virtual terminal control table 11 acquired from the virtual terminal control table acquisition means 7 ().

The online job 14 completes the connection request from the general-purpose terminal 3 to the online job 14 by executing the session establishment.

When there is a release request from the general-purpose terminal 3 to the host computer 5 via the communication line 4, the release management means 12 is notified. As shown in FIG. 5, the release management means 12 uses the virtual terminal control table 11 corresponding to the general-purpose terminal 3 that has made a release request.
Is obtained by following the link of the general-purpose terminal control table 9 (). This acquired virtual terminal control table 11
Based on the above, the online job 14 is notified of the session release request (10). Online job 14 performs session release. Thereafter, the release managing means 12 calls the virtual terminal control table returning means 13 ().

The virtual terminal control table returning means 13 has a general terminal control table 9 and a virtual terminal control table 11 as shown in FIG.
And by clearing each link setting area,
The link between the general-purpose terminal control table 9 and the virtual terminal control table 11 is disconnected (), and the virtual terminal control table 11 is returned to the virtual terminal control table 10 (). By the above operation, the release request from the general-purpose terminal 3 to the online job 14 is completed.

〔The invention's effect〕

As described above, the present invention allocates a virtual terminal control table for each connection request from a general-purpose terminal, and sets the number of virtual terminal control tables to the maximum number of terminals that are connected to online jobs and operate simultaneously, instead of the number of mounted terminals. By setting the number equal to the number, there is an excellent effect that the virtual terminal control table pool management can be performed without using unnecessary device resources. Therefore, there is an advantage that the apparatus resources are afforded and the throughput of the entire apparatus is improved.

[Brief description of drawings]

FIG. 1 is a block diagram of a general-purpose virtual terminal control device according to an embodiment of the present invention. FIG. 2 is a flow chart of the virtual terminal control table creating means of the general purpose virtual terminal control device of the present invention. FIG. 3 is a flowchart of the establishment management means of the general-purpose virtual terminal control device of the present invention. FIG. 4 is a flowchart of the virtual terminal control table acquisition means of the general-purpose virtual terminal control device of the present invention. FIG. 5 is a flow chart of the release management means of the general-purpose virtual terminal control device of the present invention. FIG. 6 is a flowchart of the virtual terminal control table returning means of the general-purpose virtual terminal control device of the present invention. 1 ... Virtual terminal definition file, 2 ... Virtual terminal control table pool creating means, 3 ... General purpose terminal, 4 ... Communication line, 5 ... Host computer, 6 ... Establishment management means, 7 ... Virtual terminal control table acquisition means, 8 ... Control Table pool, 9 ... General-purpose terminal control table, 10 ... Virtual terminal control table pool, 11 ... Virtual terminal control table, 12 ... Release management means, 13
… Virtual terminal control table return means, 14… Online job.

Claims (1)

[Claims] 1. In a general purpose virtual terminal control method for performing data transfer processing between a plurality of general purpose terminals and online jobs, a virtual terminal control table pool and data communication at the same time as the above online jobs less than the number of corresponding general purpose terminals. Pool creating means for pooling as many virtual terminal control tables as possible in this virtual terminal control table pool; establishment managing means for notifying the online job of a session establishment request in response to a connection request from the general-purpose terminal; After receiving a notification from the establishment management means, the unused virtual terminal control table pooled in the virtual terminal control table pool is acquired, and the establishment management is performed after linking with the general terminal table corresponding to the general terminal that has issued the connection request. The acquisition means given to the means and the release request from the general-purpose terminal Release management means for notifying the online job of the session release request, and virtual terminal control acquired after disconnecting the link with the general terminal control table corresponding to the general terminal that has been notified by the release management means and has issued the release request A general purpose virtual terminal control method comprising: a return means for returning a table to the virtual terminal control table pool.