/*
   +-------------+---------+-----------------------+
   | John Breaux | jab0910 | JohnBreaux@my.unt.edu |
   +-------------+---------+-----------------------+
   |                  2022-04-04                   |
   +-----------------------------------------------+
*/
/*
   producer:
      Unlinks blocks from freelist,
      Produces them,
      Links them to list1
*/
void *producer (void *);