pacopyc wrote:
On 19 Giu, 00:27, MRAB <pyt...@mrabarnett.plus.com> wrote:
pacopyc wrote:
[snip]
Ok, the problem is that I want fix a time max for each thread. For
example run 10 threads (each can terminate its work in 10 sec. max
fixed time) and wait them. If they finish its work in < 10 sec. (for
example 2 sec.) very good ... go on immediately (don't wait
unnecessary time), but if a thread use more than 10 sec. stop wait (I
kill it) .... when all threads have finished their work or when they
have used all their available time (10 sec.) the program must go on
(don't wait).
It's not possible to kill a thread. If you want a thread to have a
maximum time, the thread must check occasionally how long it has been
running and terminate if necessary.
Another programming language (Java) originally had the ability to kill
threads, but that was later deprecated because it caused problems due to
not knowing what the thread was doing when it was killed (it might have
been in the middle of updating something at the time, for example,
leaving the system in an inconsistent state).
Ok, I understand. But is possible fix max wait time (for example 60
sec.) in main thread and check queue for task done and at the same
time the remaining time. When all task have done or wait time has
expired main thread go on. Is it possible? Can you write code?
Thank you very much.
The documentation says that queue.join() can't have a timeout, so you
might have to think of another way to achieve the same effect.
You could, for example, have a results queue into which a thread puts
something to indicate when it has finished, and then use the .get method
on it in the main thread (the .get method can have a timeout).
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