Is it possible to kill a spinning thread?

Question

I am using ZThreads to illustrate the question but my question applies to PThreads, Boost Threads and other such threading libraries in C++.

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Answer 1

As people already said, there is no portable way to kill a thread, and in some cases not possible at all. If you have control over the code (i.e. can modify it) one of the simplest ways is to have a boolean variable that the thread checks in regular intervals, and if set then terminate the thread as soon as possible.