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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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  • multithreading - What is a deadlock? - Stack Overflow
    A deadlock occurs when there is a circular chain of threads or processes which each hold a locked resource and are trying to lock a resource held by the next element in the chain
  • What is a deadlock in a database? - Stack Overflow
    What is a deadlock in SQL Server and when it arises? What are the issues with deadlock and how to resolve it?
  • Whats the difference between deadlock and livelock?
    Can somebody please explain with examples (of code) what is the difference between deadlock and livelock?
  • multithreading - Simple Deadlock Examples - Stack Overflow
    I would like to explain threading deadlocks to newbies I have seen many examples for deadlocks in the past, some using code and some using illustrations (like the famous 4 cars) There are also cl
  • What are common reasons for deadlocks? - Stack Overflow
    0 Deadlock occurs mainly when there are multiple dependent locks exist In a thread and another thread tries to lock the mutex in reverse order occurs One should pay attention to use a mutex to avoid deadlocks Be sure to complete the operation after releasing the lock
  • Difference between racearound condition and deadlock
    A deadlock is when two (or more) threads are blocking each other Usually this has something to do with threads trying to acquire shared resources For example if threads T1 and T2 need to acquire both resources A and B in order to do their work If T1 acquires resource A, then T2 acquires resource B, T1 could then be waiting for resource B while T2 was waiting for resource A In this case
  • Difference between a race and a dead lock - Stack Overflow
    A deadlock occurs when two threads each lock a different variable at the same time and then try to lock the variable that the other thread already locked As a result, each thread stops executing and waits for the other thread to release the variable
  • c# - await vs Task. Wait - Deadlock? - Stack Overflow
    On my blog, I go into the details of how blocking in asynchronous code causes deadlock await will asynchronously wait until the task completes This means the current method is "paused" (its state is captured) and the method returns an incomplete task to its caller
  • Deadlocks in Oracle - Stack Overflow
    Oracle detects a deadlock automatically, throws ORA-00060: deadlock detected while waiting for resource, and rolls back one of the transactions involved in the deadlock which Oracle decided as the victim
  • An async await example that causes a deadlock - Stack Overflow
    Deadlock The top-level method is blocking the context thread, waiting for GetJsonAsync to complete, and GetJsonAsync is waiting for the context to be free so it can complete For the UI example, the "context" is the UI context; for the ASP NET example, the "context" is the ASP NET request context





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