After decades of deadlock, might something be about to change?
Coalition has not forced British politics into deadlock, as many thought it would.
The Dow Jones Industrial Average fell by hundreds of points in response to the deadlock in Washington.
John Avlon talks to a former FBI hostage negotiator about how to break the deadlock.
Both Obama and Romney are deploying a small army of lawyers in case of a deadlock or voting irregularities.
William even thought of breaking the deadlock by abolishing parliament and ruling alone, or abdicating his throne!
But naturally it was soon proved to be false; and at first matters were at a deadlock.
The way out of the deadlock was suggested by the King; he proposed a conference between eight members of either House.
The cabinet on receiving Cardwell's refusal were at a deadlock.
I could more readily understand why there had been so long a deadlock on the western front.
A situation where two or more processes are unable to proceed because each is waiting for one of the others to do something.
A common example is a program waiting for output from a server while the server is waiting for more input from the controlling program before outputting anything. It is reported that this particular flavour of deadlock is sometimes called a "starvation deadlock", though the term "starvation" is more properly used for situations where a program can never run simply because it never gets high enough priority.
Another common flavour is "constipation", in which each process is trying to send stuff to the other but all buffers are full because nobody is reading anything). See deadly embrace.
Another example, common in database programming, is two processes that are sharing some resource (e.g. read access to a table) but then both decide to wait for exclusive (e.g. write) access.
The term "deadly embrace" is mostly synonymous, though usually used only when exactly two processes are involved. This is the more popular term in Europe, while deadlock predominates in the United States.
Compare: livelock. See also safety property, liveness property.