Clever Geek Handbook

Can we use deadlocks?

I was wondering about this. Deadlocks are something we prefer to avoid, but is there any scenario in which we can use deadlocks to our advantage?

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A deadlock is a situation where two or more competing actions are waiting for another, and, does.

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So your goal is not to fall into it. If your code is deadlocked, then you need to go back and re-design your code to avoid / minimize such deadlocks. It would also be nice to have some kind of recovery mechanism and warning when you get stuck.



Now for your question: can this be used for something? Well, there is always a good use, because something depends on your situation and your goal. Here are some scenarios:

  • If you are a hacker trying to attack an application, you can freeze the system, forcing it into many dead ends.
  • If you are the developer of any deadlock detection system, you want to create such deadlocks in a test environment to make sure it gets caught by your system or not.
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NOT!

Deadlock puts your code in a state where nothing can continue.



(Warning, snarky comment: if that's what you want, just don't run the code).

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