JPS5856170A - Session and terminal connection control system of tss - Google Patents

Abstract

PURPOSE:To improve the availability of a TSS terminal and to facilitate the operation of a system, by optionally changing a connection relation with a terminal session. CONSTITUTION:The function of a temporary interrupt TLOGOFF command is realized by making only the terminal (TU) machine number of its entry 15 ineffective or by substituting it by a special code, and the terminal TU is released from restriction to a session. Therefore, when a user with a different password id inputs an opening LOGON command through the same terminal, it is confirmed by the entry 15 that this terminal is not restricted by another session, and then a new session is opened, thereby generating different connection information entry groups 13, 14, and 15.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a session/terminal connection control system in a time sharing system T8S.

In particular, the present invention provides a function that allows a certain T88 terminal to interrupt only the communication connection and open another session from that terminal without terminating the session opened by the T88 terminal during T88 operation, and an arbitrary The present invention relates to a session connection control method having a function of resuming a communication connection from the end of a T88fi to a session whose communication connection was previously interrupted.

In the conventional T88 power system, a user can use one T88
When a session is opened (LOGON) from an 88 terminal, the T8 is used until the session is closed (LOGOL'F).
The S terminal was in an occupied state, and even if there was a temporary suspension period for TS8 use, it was unavailable to other users. Also, if the S terminal had an urgent and high-priority processing request, it could not be used by other users. When a session is closed to give up unused space for the user, unlike the normal interrupt state, the interrupted state is not saved, and the next time the session is set up again, the VC will almost never have to redo the process. The present invention provides a control means that can arbitrarily disconnect or connect only T88 terminals without affecting the opened sessions in any way. As a configuration, in a TSS type data processing device, for a session opened from any one terminal, the communication connection between the session and the terminal is disconnected while the session is kept active. A means for releasing a terminal and opening another service from the terminal, and a method for resuming a communication connection from any terminal with a vacant VC to the service from which the terminal has been released. The present invention is characterized in that the present invention is characterized in that the connection relationship between the terminal and the session can be changed arbitrarily.The present invention will be described in detail below.

In the description of the present invention, the Tarnporary LOGOF'F function 2 is a function to temporarily interrupt the conversation between the terminal and the processing of a session opened from the T8S terminal.
, abbreviated as TLOGOF'F' function, and its fill
The j control command is called the TLOGOF'F command'. Similarly, the Rgco
rLrLgct LOG ON function, RLOG for short
It is called the ON function, and its control command is called RLOGON.
It's called a command.

FIGS. 1(cL) to (C) show the TL according to the method of the present invention.
0■, which shows an application example for a general understanding of the effects of the OGON function and the TLOGOFF function, shows a state in which terminal 1 and session 1 are coupled.

■ In order to interrupt terminal 1ic and other users with the preferred password (identification code) Ld to open another session, a TLOGOFF command is input from terminal 1, and the connection relationship between terminal 1 and session 1 is established. Show how to solve.

O indicates that it becomes possible to open another session from terminal 1, and session 3 is opened.

■ indicates that the binding relationship between session l and terminal l has been canceled, but the processing status of Senyon 1 is maintained. 0 Therefore, input/output with the terminal is not possible, but other operations are not possible. is possible.

Session 1 is in a waiting state when attempting input/output processing with the terminal. 0 @ indicates a state in which terminal 2 has finished processing and session/2 has been closed. At this time, terminal 2 can be used to open another session. In order to continue processing the previous session, terminal 2 inputs the RLOGON command from free terminal 2, which is not opened in session 1. and establishes a connection relationship with session l.

(2) indicates that the terminal 2 performs input/output processing with the terminal 2.

Next, in order to facilitate understanding of the embodiments of the present invention, an Om2 diagram explaining the means for realizing each of the above functions is shown.
This shows an example of the method. In the figure, 1.2.3 is Koumi TU, 4FiT88 computer, and 5 is TS8 inside the computer.
T88%l1391 system for controlling city 1j in environment, 6H terminal 1.2.3. ! : A communication control system that controls communication connection with the T88 computer 4.

7 is a buffer, and 0 or 8 is a communication control system 6, which is used for sending and receiving messages.
9 is a block that stores communication connection information such as the hardware device number and buffer area address required to establish a communication connection between the terminal and the sofa area.
This is a session management system that handles the session from OGON to LOGOFF as one job and manages the execution of scheduling and the like. Reference numeral 10 denotes a user attribute information block in which a password Ld for each user and information such as 1,0GON procedure, □S, JC'L, etc. necessary for user processing are stored. 11 is a user command processor that controls the execution of user command subroutines.
In order to open a session in the SS computer and perform processing, it is first necessary to establish a communication path at the node-ware level. For example, assume that a LOGON command is input from terminal 1. At this time, the communication control system 6 firstly processes the message from the terminal l.
A specific buffer area is set in the buffer 7, and its address and the equipment numbers of the terminal l, lines (not shown), communication control equipment, channels, etc. necessary for sending and receiving messages are stored in the communication connection information block 8.

Message communication between the terminal 1 and the TSS computer is thereby established via that particular buffer area.

The communication control system 6 then analyzes the messages in that particular buffer area to identify the user Ld and instructs the session management 7 stem 9 on the necessary procedures to initiate processing for that user Ld.

The session management system 9 opens a session corresponding to the user LcL, and connects this session with the
In this method example, the session management 7 stem 9 stores the connection information to enable communication with the user Ld in the user job information block 10. There is no need to know the device number; it is only necessary to dedicate a specific buffer area and enable communication with this buffer area. That is, the buffer area address is used as relay connection information. The session management system 9 and user island command processor 11 manage connections between sessions, jobs, job steps, command sequences, and the like.

FIG. 3 schematically shows the connection information used in the system of FIG. 2. In FIG. Yes, and is referenced every time a message is sent or received. 13 is an entry consisting of a user Ld (password) and a session name generated by the session management system 9. All processes of the 0 user Ld are managed by the session name and are distinguished from the processes of other user Lds. . Reference numeral 14 is an entry that provides a comparison between the session name and the top buffer area address, and access to the buffer 7 is performed with reference to this entry. These entries are stored within a table or each control block.

In such conventional systems, the connection information entries 12, 13, and 14 described above are retained from the time a session is opened by the LOGON command until the session is closed by the LOGOFF command.

@ Figure 4 shows an embodiment of the method according to the present invention. Here, instead of the connection information entry 12 in Figure 3, the communication control system 6 creates a ) IJ l 5 is generated. When the communication control system 6 sends and receives messages between the terminal TU and the buffer area, it is necessary to refer to the VCIK entry 14 in order to access the nox buffer area. This process is realized by invalidating only the 10 equipment number of IJ15 or replacing it with a special code. As a result, the terminal TU is released from the restriction on Senyong, so users of different Ld can access the LO from the same terminal.
When the GON command is input, a new connection is established after confirming by end 1r15rc that this terminal is not bound by another session, and another connection information entry group 13.14.15 is generated.

If a session whose terminal has been released by the previous TLOGOFF command requests the communication control system 6Vc to send/receive a message, it is possible to obtain the 10 device number from the session name in entry 15I/c. If this is not possible, we will purchase a control system that will put the device in a hold state, waiting for the transmitter/receiver service.

Next, the function of the )LLOGON (resume) command is to set a new 10 device number in the entry 15 from which the 10 device number was previously deleted by the TLOGOFF' command.

This is the LC of the user who entered the RLOGON command.
This is accomplished by taking the L password from entry 13, calling entry 15 using the issued session name, and setting there the TU device number of the terminal used.

Since the entry 15 is recovered in this way, the message transmission/reception processing of the previously suspended session becomes executable.

The present invention has been explained above according to examples, but
! Compared to AVC, the usability of the TSS is improved and system operation becomes easier.

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram of the system of the present invention, Fig. 2 is a purchasing diagram of a conventional T88 computer, Fig. 3 is a diagram showing communication connection information in the computer of Fig. 2, and Fig. 4 is an embodiment of the present invention. FIG. In the figure, l is the T8S trend, 6 is the communication control system, 7U buffer, 9 is the session management system, 13.14.15
(respectively communication connection information (en)) indicates IJ.

Claims (1)

[Claims] In the TS8S2O data processing device, for a session opened from any one terminal, the communication connection between the session and the terminal is disconnected and the terminal is released while the session is kept active, and the terminal is released from the other terminal. and a means for restarting communication connection from any free terminal to the session from which the terminal has been released. 'i' is characterized in that the relation can be changed arbitrarily Kf.
' s Session/terminal connection control force formula in s.