Parallel Programming with Swift: What could possibly go wrong?

IntroductionIn the last few articles, we've inspected different ways to control concurrency. There are some low-level basics provided by the operating system. For example, Apple provided frameworks or other ideas such as promises, which are highly used in JavaScript. Even though some pitfalls have been mentioned earlier I realized I didn't give enough credit to them. As a result, trying to be comprehensive, some parts of this article are recaps.This article is all about, what could possibly go wrong if you don't understand concurrency. Let's dive in!AtomicAtomic contains has the same idea as a transaction in a database context. You want to write a value all at once behaving as one operation. Apps compiled for 32 bit, can have quite the odd behavior, when using int64_t and not having it atomic. Why? Let's look into detail what happens:int64_t x = 0Thread1:x = 0xFFFFThread2:x = 0xEEDDHaving a non-atomic operation can result in the first thread starting to write into x. But since we are working on a 32bit Operating System, we have to separate the value we write into x into two batches of 0xFF.

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mobile,ios,swift,ios-app-development,mobile-app-development