DC/UCF Concepts › Abend Detection and Timed Functions › Resource Timeout Interval

Resource Timeout Interval

The resource timeout interval is the amount of time the DC/UCF system permits a terminal to be inactive. Terminal activity occurs when the user presses a control key (such as ENTER or PF1) that passes data to the system.

When the resource timeout interval expires, the system invokes the resource timeout program. Typically, the resource timeout program releases the resources held by the terminal and returns control to the DC/UCF system.

How You Define the Resource Timeout Interval

Use the RESOURCE TIMEOUT parameter of the system generation SYSTEM statement to specify the resource timeout interval and the resource timeout program or to disable the resource-timeout mechanism.

How to Override the Resource Timeout Specification

Use the RESOURCE parameter of the DCMT VARY TIME command at runtime to override the system generation specifications.

You can override the resource timeout specifications for individual terminals:

• During system generation by means of the RESOURCE TIMEOUT parameter of the TASK statement.
• At runtime by means of the RESOURCE INTERVAL and RESOURCE PROGRAM parameters of the DCMT VARY TASK command.
• At program execution time by means of the resource timeout parameters of the applicable DML statement. In Assembler, resource timeout specifications are overridden by means of the RESINT and RESPGM parameters of the #RETURN statement. In COBOL and PL/I, resource timeout specifications are overridden by means of the TIMEOUT parameter of the DC RETURN statement.

Task level overrides apply when the task is the last task to be executed from the terminal.

More Information:

• For more information about the SYSTEM statement, see SYSTEM Statement.
• For more information about the TASK statement, see TASK Statement.
• For more information about the DCMT commands, see the CA IDMS System Tasks and Operator Commands Guide.
• For more information about the DML statements, see the CA IDMS DML Reference Guide for the applicable language.