Wait die and wound wait method?

Answer 1

Two other algorithms are Wait/Die and Wound/Wait, each of which uses a symmetry-breaking technique. In both these algorithms there exists an older process (O) and a younger process (Y). Process age can be determined by a timestamp at process creation time. Smaller timestamps are older processes, while larger timestamps represent younger processes.

Wait/Die Wound/WaitO needs a resource held by Y O waits Y diesY needs a resource held by O Y dies Y waits