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Questions - unique-lock

Last notify_all isn't triggering last conditional_variable.wait

What I'm Trying To Do Hi, I have two types of threads the main one and the workers where the workers are equal to the number of cores on the CPU, what I'm trying to do is when the main thread needs to...
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Pedro S

c++

multithreading

mutex

unique-lock

conditional-variable

Votes: 0

Answers: 1

Latest Answer

Here is how your code works: some waiting in Update is over when notified: cv.wait(lk, [] { return (int)UpdateManager::CoresCompleted >= (int)UpdateManager::ProcessorCount; }); It goes out of wait...
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ixSci

Producer and Consumer Problem waiting threads

I tried to code Producer and Consumer Problem but after producing up to a certain value -(val) produce thread ends. but the consumer thread's condition variable waiting for notification but there is n...
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VEMBU KARTHICK T

c++

multithreading

mutex

condition-variable

unique-lock

Votes: 0

Answers: 1

Latest Answer

You need to have another variable which will indicate that your producer will produce no more so your consumer will know that it doesn't need to wait for the producer anymore. if it consumed the late...
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ixSci

Why does std::condition_variable wait() require a std::unique_lock arg?

My thread does not need to be locked. std::unique_lock locks thread on construction. I am simply using cond_var.wait() as a way to avoid busy waiting. I have essentially circumvented the auto-locking ...
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Chris Kouts

multithreading

c++11

condition-variable

unique-lock

Votes: 0

Answers: 1

Latest Answer

You need a lock to prevent this common newbie mistake: Producer thread produces something, Producer thread calls some_condition.notify_all(), Producer thread goes idle for a while, meanwhile: Consu...
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Solomon Slow

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