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deadlock    音标拼音: [d'ɛdl,ɑk]
n. 僵局,停顿
vt.
vi. (使)停顿,(使)相持不下

僵局,停顿(使)停顿,(使)相持不下

deadlock
死锁

deadlock
死锁

deadlock
n 1: a situation in which no progress can be made or no
advancement is possible; "reached an impasse on the
negotiations" [synonym: {deadlock}, {dead end}, {impasse},
{stalemate}, {standstill}]

deadlock \dead"lock`\, n.
1. A lock which is not self-latching, but requires a key to
throw the bolt forward.
[1913 Webster]

2. A counteraction of things, which produces an entire
stoppage; a complete obstruction of action.
[1913 Webster]

Things are at a deadlock. --London
Times.
[1913 Webster]

The Board is much more likely to be at a deadlock of
two to two. --The Century.
[1913 Webster]

83 Moby Thesaurus words for "deadlock":
Tweedledum and Tweedledee, arrest, bell, blind alley, block, box,
brake, bring to, bring up short, cessation, check, checkmate,
condition, corner, cul-de-sac, cut short, cutoff, dam, dead end,
dead heat, dead set, dead stand, dead stop, dead-end street,
dilemma, draw, draw rein, dying down, ebb, ebbing, end, endgame,
ending, even break, extremity, fair shake, final whistle, freeze,
full stop, grinding halt, gun, halt, hole, impasse, knotted score,
lock, lockout, neck-and-neck race, photo finish, plight, posture,
predicament, pull up, put paid to, quandary, sit-down strike,
situation, slow down, stalemate, stall, stand, stand-off, standoff,
standstill, state, stay, stem, stem the tide, stillstand, stop,
stop cold, stop dead, stop short, stoppage, strike, stymie,
subsidence, the same, tie, walkout, wane, waning, work stoppage

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)

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.


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