Testing Whether a Range of Lists is Empty

The LTVECENTRIES request allows you to test up to 32 consecutive vector entries to determine whether their associated event queue or lists are empty. The output from this request is a bit string with one bit per vector entry, starting with the vector entry you specify as the starting vector entry number and continuing until 32 bits are loaded. Vector entries range from 0 to n-1, where n is the number of entries in the vector.

The bits in the bit string are interpreted as follows:

0: The vector entry corresponding to this bit position indicates that the monitored list or event queue is not empty.
1: The vector entry corresponding to this bit position indicates that the monitored list or event queue is empty.