Take a task from the base of the DEQ. Always called by other threads via scan()
Definition at line 523 of file FJTaskRunner.java.
References base, confirmTake(), and top.
Referenced by confirmPop(), pop(), run(), scan(), and scanWhileIdling().
Increment base in order to suppress a contending pop
int b = base++;
if (b < top)
// back out
base = b;