In Computer Science, a system that allows concurrent operation of multiple processes and locking of resources and which does not provide mechanisms to avoid or prevent deadlock must support a mechanism to detect deadlocks and an algorithm for recovering from them.
One such deadlock detection algorithm makes use of a Wait-For Graph to track which other processes a process is currently blocking on. In a Wait-for Graph, processes are represented as nodes, and an edge from process to implies is holding a resource that needs and thus is waiting for to release its lock on that resource.
In U.S., Many More Dreading Than Anticipating 2012 Campaign; Seven in 10 say they can't wait for the campaign to be over.(Survey)
Dec 16, 2011; Byline: Jeffrey M. Jones Synopsis: Seven in 10 Americans say they can't wait for the presidential campaign to be over, while a...