What is CFRunLoop in iOS in CoreFoundation library?

Question

Objective-C

Good afternoon, can someone explain what RunLoop is? apple does not have a description in the documentation, I accidentally stumbled upon this class in the library code and I wonder what this thing does?

Answer 1

Seriously?
https://developer.apple.com/documentation/corefoun...
https://developer.apple.com/library/archive/docume... Simply put
, this is what makes a normal application different from a command line application. CFRunLoop is a queue that runs through everything inside it in an infinite loop until one of its components in the queue gives a signal. After processing, it repeats these steps until the application closes.
A run loop is an event processing loop that you use to schedule work and coordinate the receipt of incoming events. The purpose of a run loop is to keep your thread busy when there is work to do and put your thread to sleep when there is none.