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Kas saaksite selgitada sündmuste tsükli (EventLoop) tööpõhimõtet asünkroonses programmeerimises?

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EventLoop (event loop) is a mechanism that allows asynchronous code to run without blocking the main thread.

Working principle:

  1. All asynchronous tasks and events are placed in the event queue.
  2. The EventLoop constantly checks this queue and sequentially extracts tasks for execution.
  3. If a task is asynchronous (e.g., waiting for a response from the server), the EventLoop starts it and does not wait for it to finish, but continues processing other tasks.
  4. When an asynchronous operation completes, its result is placed back into the queue for processing.

This way, the EventLoop ensures non-blocking execution of code, keeping the program responsive.

In Flutter, for example, the EventLoop manages the processing of UI events, timers, and asynchronous operations, ensuring a smooth interface.