VMS Help System Services, $AVOID PREEMPT  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    Requests that the EXEC avoid preempting the calling process or
    thread.

    Format

      SYS$AVOID_PREEMPT  enable

    C Prototype

      int sys$avoid_preempt  (int enable);

1 - Arguments

 enable

    OpenVMS usage:longword_unsigned
    type:         longword (unsigned)
    access:       read only
    mechanism:    by value
    Enables or disables preemption avoidance. If the enable argument
    is set to 1, preemption avoidance is enabled; if 0, preemption
    avoidance is disabled.