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Deadlock
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English Dictionary: deadlock by the DICT Development Group
4 results for deadlock
From WordNet (r) 3.0 (2006) [wn]:
deadlock
n
  1. a situation in which no progress can be made or no advancement is possible; "reached an impasse on the negotiations"
    Synonym(s): deadlock, dead end, impasse, stalemate, standstill
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
   Deadlock \Dead"lock`\, n.
      1. A lock which is not self-latching, but requires a key to
            throw the bolt forward.
  
      2. A counteraction of things, which produces an entire
            stoppage; a complete obstruction of action.
  
                     Things are at a deadlock.                  --London
                                                                              Times.
  
                     The Board is much more likely to be at a deadlock of
                     two to two.                                       --The Century.

From Jargon File (4.2.0, 31 JAN 2000) [jargon]:
   deadlock n.   1. [techspeak] A situation wherein 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
   communicating to a server, which may find itself waiting for output
   from the server before sending anything more to it, while the server
   is similarly waiting for more input from the controlling program
   before outputting anything.   (It is reported that this particular
   flavor 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 flavor 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}.
   2. Also used of deadlock-like interactions between humans, as when
   two people meet in a narrow corridor, and each tries to be polite by
   moving aside to let the other pass, but they end up swaying from
   side to side without making any progress because they always move
   the same way at the same time.
  
  

From The Free On-line Dictionary of Computing (15Feb98) [foldoc]:
   deadlock
  
      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}.
  
      [{Jargon File}]
  
      (2000-07-26)
  
  
No guarantee of accuracy or completeness!
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