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I'm curious about how exactly Qt implements event loop and signal slot under Linux Does it use thread signals or does it use dbus under the hood or something else?

Pazel1374
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    You could always download the Qt source and have a look; short of that, this might be of interest: https://stackoverflow.com/a/42311174/131930 – Jeremy Friesner Jul 23 '23 at 19:19
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    On Linux, it may use this: https://man7.org/linux/man-pages/man7/epoll.7.html (or some of the standard POSIX alternatives, `poll` or `select`, check sources to be sure). – hyde Jul 23 '23 at 19:46

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