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# Example: lr_resume_transaction_instance

In the following example, lr_stop_transaction_instance and lr_resume_transaction_instance show the effect of stopping and resuming the instance.

    Action() {
        int i;
        int iteration = 1000;
        char aStr[100];
        long trans_handle;

        /* The handle argument of zero indicates
            that there is no parent transaction */

        trans_handle = lr_start_transaction_instance("Stop&Start", 0);

        /* Do part of business process. Represented
            here by loop to ensure that some
            time passes. */

        for (i=0; i < iteration; ++i) {
            sprintf(aStr, "%d", i);
          //lr_log_message("%d",i);
        }

        /* Output the duration to this point
            with transaction instance active */

        lr_output_message("First time = %f",
            lr_get_trans_instance_duration(trans_handle));

        // Stop the transaction instance

        lr_stop_transaction_instance(trans_handle);

        /* Output the duration to this point
            with transaction stopped */

        lr_output_message("Immediately after stop = %f",
            lr_get_trans_instance_duration(trans_handle));

        // Ensure that some time passes

        for (i=0; i < iteration; ++i) {
            sprintf(aStr, "%d", i);
            //lr_log_message("%d",i);
        }

        /* Output the duration to this point
            with transaction instance still stopped but
            more time passed. Note that time is the same.
            The time spent in the loop while the transaction
            instance was stopped is not reported. */

        lr_output_message("After stop and loop = %f",
            lr_get_trans_instance_duration(trans_handle));

        // Resume the transaction instance

        lr_resume_transaction_instance(trans_handle);

        /* Note that with the instance resumed,
            all the time passed since the start is
            reported, including the time spent in the
            loop while the instance was stopped. */

        lr_output_message("After resume time = %f",
            lr_get_trans_instance_duration(trans_handle));

        // Add time to duration

        for (i=0; i < iteration; ++i) {
            sprintf(aStr, "%d", i);
            //lr_log_message("%d",i);
    }

        /* Total time reported */

        lr_output_message("After resume and loop = %f",
            lr_get_trans_instance_duration(trans_handle));

        // End transaction instance

        lr_end_transaction_instance(trans_handle, LR_AUTO);
        return 0;
    }

    Example: Output:
    Action.c(14): Notify: Transaction Stop&Start started.

    Action.c(26): First time = 0.609375
    Action.c(31): Notify: Transaction Stop&Start stopped.
    Action.c(36): Immediately after stop = 0.609375
    Action.c(50): After stop and loop = 0.609375
    Action.c(54): Notify: Transaction Stop&Start resumed.
    Action.c(60): After resume time = 1.250000
    Action.c(70): After resume and loop = 1.859375
    Action.c(75): Notify: Transaction Stop&Start ended with Pass status (Duration: 1.8594).

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