How many ways a thread can be kept to wait

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Hi,

I would like to know, In how many ways can a thread be kept in waiting state.

Cheers..!!

Posted 3-Jan-13 18:30pm

Baddy_Bad_Boy

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Sergey Alexandrovich Kryukov 4-Jan-13 0:41am

Aha, 1, 2 or 3? Looks like yet another... original interview question :-)
—SA

Baddy_Bad_Boy 4-Jan-13 2:06am

Not really, A kind of...
any fixed answer for the question.

Richard MacCutchan 4-Jan-13 5:14am

Probably an infinite number, as a thread could be made to wait for any possible event to occur.

Baddy_Bad_Boy 4-Jan-13 23:32pm

well Richard, I appreciate your answer but, can you please elaborate it.
I was pretty much interested to know how a thread can be kept to wait.
I found some keywords through CPallini below.

[no name] 6-Jan-13 4:07am

Until you turn this into a proper question it can't be answered. Explain what you are trying to do. Putting a thread into a "wait state" just for the hell of it has no point. Why does the thread exist at all?

Sergey Alexandrovich Kryukov 3-Jul-13 10:29am

...and you are faking your "answers", please stop doing it.
—SA

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CPallini · Answer 1 · 2013-01-04T01:58:00

Solution 2

There are several ways, for instance a thread might be waiting on blocking input call or it might be unconditionally sleeping.
The recommended way to put a POSIX thread in wait state is using a condition variable, see Condition Variables[^].

Posted 4-Jan-13 1:58am

CPallini

ranjithkumar81 · Answer 2 · 2013-01-04T01:38:00

Solution 1

1)int pthread_join(pthread_t th, void **thread_return);

The pthread_join function is used to wait for termination of a thread --- or wait for the thread to re-join the main thread.

http://www.amparo.net/ce155/thread-ex.html[^]

Posted 4-Jan-13 1:38am

ranjithkumar81

Baddy_Bad_Boy · Answer 3 · 2013-01-04T17:35:00

Solution 3

Using semaphores or Mutex, the threads can be made to wait.

Posted 4-Jan-13 17:35pm

Baddy_Bad_Boy