Single-threaded concurrency model

The View System presents a single-threaded concurrency model by serializing calls on a view's member functions. The View System enforces this serialization by encapsulating function calls from objects outside of a view's thread of execution into packages called requests and putting the requests onto a request queue. A request handler removes requests from the queue one at a time. An important element of this single-threaded concurrency model is that a view does not directly access its parent in a view hierarchy. Giving the parent view ultimate control over its children helps to prevent deadlock situations and ensure data integrity.

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