TN3270e Server Manual

Introduction to the TN3270e Server

TN3270e Server Manual—422923-003

1-9

Safeguard Considerations

If you add an TN3270e server window as a Safeguard-protected terminal and the

TN3270e server is stopped and restarted, Safeguard suspends the Safeguard-

protected terminal. After restarting the TN3270e server, you must use Safecom to thaw

and restart the Safeguard terminal.

Pathway Considerations

The following application interface considerations apply to the block mode for Pathway:



The TN3270e server expects applications to use Control-11 (wait for session

establishment) and Control-12 (disconnect) procedures for session management.

TACL does this implicitly, but Pathway applications must do this explicitly.

A sample SCREEN COBOL requester consisting of a RECONNECT MODEM verb

and a CALL ON ERROR statement is included in the RCONNECT file in the

installation subvolume (ISV). You should install this requester (or a similar one) as

the highest-level requester in your Pathway system; this allows terminal threads to

be reused automatically.



Set the Pathway terminal attribute DIAGNOSTIC to OFF for TN3270e server

terminals. Setting DIAGNOSTIC ON can prevent terminal threads from being

reused.

The following is an example of the PATHCOM command for Pathway version C31

or later:

PROCEDURE DIVISION.

A010-main.

PERFORM b100-main-loop THRU b199-exit

UNTIL ws-exit-sw = "Y".

a019-exit.

EXIT PROGRAM.

b100-main-loop.

CALL "main-menu"

ON ERROR GO TO b110-continue.

b110-continue.

RECONNECT MODEM.

b199-exit.

EXIT.

Note. The RECONNECT MODEM verb must follow the call to the main module. If the order is

reversed, the first attempt to use a thread is disconnected because Pathway does an implicit

Control-11 procedure when the terminal is started. If the RECONNECT MODEM verb is

executed first, a Control-12 procedure (disconnect) is performed when the first session is

established.

PATHCOM RUN menu