$Date: 2005/10/23 10:31:22 $
$Revision: 1.3 $
-- Returns reference to the singleton
-- (From EM_TIME_SINGLETON)
-- Is current object less than or equal to other?
-- (From PART_COMPARABLE)
-- Is current object greater than other?
-- (From PART_COMPARABLE)
-- Is current object greater than or equal to other?
-- (From PART_COMPARABLE)
-- Is other attached to an object of the same type
-- as current object and identical to it?
-- (From ANY)
-- The greater of current object and other
-- (From COMPARABLE)
-- The smaller of current object and other
-- (From COMPARABLE)
-- If current object equal to other, 0;
-- if smaller, -1; if greater, 1
-- (From COMPARABLE)
-- The function to be called at next_trigger_time
-- Is current EM_TIMER less than other?
-- (From PART_COMPARABLE)
-- Next time in millisecond when the callback is will be called
-- Set next_trigger_time
EM_TIMER is used by EM_TIME to hold a list of
callbacks.