/* newqueue.c - newqueue */ #include <conf.h> #include <kernel.h> #include <q.h> /*------------------------------------------------------------------------ * newqueue -- initialize a new list in the q structure *------------------------------------------------------------------------ */ int newqueue() { struct qent *hptr; /* address of new list head */ struct qent *tptr; /* address of new list tail */ int hindex, tindex; /* head and tail indexes */ hptr = &q[ hindex=nextqueue++ ];/* nextqueue is global variable */ tptr = &q[ tindex=nextqueue++ ];/* giving next used q pos. */ hptr->qnext = tindex; hptr->qprev = EMPTY; hptr->qkey = MININT; tptr->qnext = EMPTY; tptr->qprev = hindex; tptr->qkey = MAXINT; return(hindex); }