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Themes, QRunnable and QThreadPool, I can not fit into the details

I know the general theory: Thread, QRunnable and QThreadPool. How does all this fit in? I mean, when a QRunnable instance is created and ThreadPool is assigned, what does it mean to start a thread? Can multiple threads access the same QRunnable? Can a single QRunnable map one-to-one with a single workflow?

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QRunnable encapsulates the task you want to complete in a separate thread. If you need to know which thread performs this task or shares it between threads, then you are probably doing something more complex than the fact that QThreadPool is designed to expand capabilities. In this case, you will create your own behavior using QThread directly. QRunnable's “launch” with QThreadPool is similar to the sequence of this task for an available thread in the pool. Whereas starting QThread actually allocates a new OS thread and executes it.

QRunnable. , , QRunnable. - QThread, QThreadPool QRunnable. , (, QMutex, QMutexLocker, QReadWriteLock, QSemaphore / QWaitCondition) QRunnable.

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