Swift Competition—Part 1: Task, Executors, iyo Priority Escalation

Swift 6 waxaa la aasaasay mid ka mid ah macluumaadka ah ee macluumaadka ah ee apps.In this article, waxaan ka heli karaa macluumaadka waxa ay u baahan tahay si ay u aragto, si ay u arki karaa sida ay u shaqeeyaan ka mid ah macluumaadka ah, si ay u soo bandhigay model cusub oo ka mid ah model Actor, iyo si ay u aragto model Actor. Swift Concurrency Review: Qalabka iyo Qalabka Shuruudaha waxaa laga yaabaa in ka mid ah macluumaadka ugu caawin ah ee shuruudaha software. codsiga ah oo ku yaalaa wax soo saarka iyo kharashka, laakiin sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale sidoo kale. Swift Concurrency, waxaa loo yaabaa in Swift 6, waa in la helo programming simultan by providing a clear, secure, and efficient model for handling asynchronous tasks. 💡If aad loo isticmaalo Swift 5.x oo aad ku habboonay Swift 6, sidoo kale aad u isticmaalaa Swift Concurrency checks in your project settings. This allows you to gradually adopt the new concurrency model whileining compatibility with existing code. If you enable these checks helps catch potential concurrency issues early, making the transition smoother and safer. As you update your codebase, sidoo kale aad sidoo kale ka horumarka si ay u isticmaalaa async/await syntax iyo qalabka Swift Concurrency kale si ay u isticmaalaa si ay u isticmaalaa. 💡If aad loo isticmaalo Swift 5.x oo aad ku habboonay Swift 6, sidoo kale aad u isticmaalaa Swift Concurrency checks in your project settings. This allows you to gradually adopt the new concurrency model whileining compatibility with existing code. If you enable these checks helps catch potential concurrency issues early, making the transition smoother and safer. As you update your codebase, sidoo kale aad sidoo kale ka horumarka si ay u isticmaalaa async/await syntax iyo qalabka Swift Concurrency kale si ay u isticmaalaa si ay u isticmaalaa. Some of the key problems Swift Concurrency addresses include: Race Conditions: Dhammaan qiyaastii ka mid ah qiyaastii ah oo ka mid ah qiyaastii ah oo ka mid ah qiyaastii ah oo ka mid ah qiyaastii. Callback hell: Isticmaalka codsiga asynchronous oo ku habboonay in ka badan oo ku habboonay callbacks-ka ah ama shuruudaha qiyaasta, si ay u aragtiyo codsiga ah oo ay ku habboonay. Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Shuruudaha dhismaha: dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha Sida loo isticmaali karaa habka ugu fiican ee loo isticmaali karaa Swift 6 waa mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ah mid ka mid ah. async/await Qalabka Multitasking Qalabka dhismaha iyo dhismaha dhismaha iyo dhismaha dhismaha iyo dhismaha dhismaha iyo dhismaha dhismaha iyo dhismaha dhismaha, dhismaha dhismaha iyo dhismaha dhismaha, dhismaha dhismaha dhismaha, dhismaha dhismaha dhismaha, dhismaha dhismaha dhismaha, dhismaha dhismaha dhismaha, dhismaha dhismaha dhismaha, dhismaha dhismaha dhismaha, dhismaha dhismaha dhismaha, dhismaha dhismaha dhismaha, dhismaha dhismaha dhismaha, dhismaha dhismaha dhismaha, dhismaha dhismaha dhismaha, dhismaha dhismaha dhismaha dhismaha, dhismaha dhismaha dhismaha, dhismaha dhismaha dhismaha Qalabka Multitasking Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Shuruudaha Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qal Sida loo isticmaali karaa, waxaa loo isticmaali karaa mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ah mid ka mid ah mid ka mid ah. Sida loo yaabaa, multitasking preemptive waxay ku yaalaa nidaamka operating in ay ku yaalaa wax soo saarka thread. Macluumaadka Macluumaadka Macluumaadka Macluumaadka Macluumaadka Macluumaadka Macluumaadka Macluumaadka Macluumaadka Macluumaadka Macluumaadka Macluumaadka Macluumaadka Macluumaadka Macluumaadka Macluumaadka Macluumaadka Macluumaadka Macluumaadka Macluumaadka Macluumaadka Macluumaadka Macluumaadka Macluumaadka Macluumaadka Macluumaadka Macluumaadka Macluumaadka Macluumaadka Macluumaadka Macluumaadka Macluumaadka Macluumaadka Macluumaadka Macluumaadka Macluumaadka Macluumaadka Macluumaadka Macluumaadka Macluumaadka Macluumaadka Macluumaadka Waayo, waxaa laga yaabaa in ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ka mid ah. Markaad ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ah mid ka mid ah mid ka mid ah mid ah mid ka mid ah mid ah mid ka mid ah mid ah mid ka mid ah mid ah mid ka mid Qalabka Multitasking Sidaas, shuruudaha shuruudaha ah ee Swift waxay isticmaalaa multitasking co-operative. Markaas ka mid ah macluumaad ah, macluumaad co-operative waxaa laga yaabaa in ay ka mid ah wax soo saarka ah oo ka mid ah macluumaad ah oo ka mid ah wax soo saarka. Task.yield() Shuruudaha shuruudaha ah ee Swift waxaa laga yaabaa in ka mid ah shuruudaha shuruudaha ah oo leh oo ku yaal ah oo ku yaalaa in ka mid ah shuruudaha Grand Central Dispatch. Sida loo isticmaali karaa qalabka qalabka, waxaa loo isticmaali karaa qalabka qalabka qalabka qalabka. Task.yield() Sidaas, multitasking co-operative waa la soo bandhigo: haddii wax soo saarka ha ahaato, waxaa loo yaabaa in ay ka mid ah wax soo saarka oo ay ku yaalaa, si ay u dhigi karaa ama si ay u dhigiyaan wax soo saarka kale ee nidaamka. Marka aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan yahay. Functiibada waxaa laga yaabaa in Swift runtime waxay ka heli karaa xafiisyada ugu horeysay ee loo yaqaan 'heap-allocated continuation'.This continuation represents a resumption point and is enqueued for future execution. async await Sida loo yaqaan 'Swift Runtime' waa in la soo xiriir oo ka mid ah wax soo saarka ah oo ka mid ah wax soo saarka ah oo ka mid ah wax soo saarka ah. Sida loo yaabaa ka hor, modelka waxaa ka caawinay warshadaha warshadaha warshadaha warshadaha warshadaha warshadaha warshadaha warshadaha warshadaha warshadaha warshadaha warshadaha warshadaha warshadaha warshadaha warshadaha warshadaha warshadaha warshadaha warshadaha warshadaha warshadaha warshadaha warshadaha warshadaha warshadaha warshadaha warshadaha warshadaha warshadaha warshadaha warshadaha warshadaha warshadaha warshadaha warshadaha warshadaha warshadaha warshadaha warshadaha warshadaha warshadaha warshadaha warshadaha warshadaha warshadaha warshadaha warshadaha warshadaha warshadaha warshadaha warshadaha warshadaha warshadaha. Shuruudaha dhismaha ugu fiican ee shuruudaha ugu horeysay ee shuruudaha ugu horeysay ee shuruudaha ugu horeysay ee shuruudaha ugu horeysay ee shuruudaha ugu horeysay ee shuruudaha ugu horeysay ee shuruudaha ugu horeysay ee shuruudaha ugu horeysay ee shuruudaha ugu horeysay ee shuruudaha ugu horeysay ee shuruudaha ugu horeysay ee shuruudaha ugu horeysay ee shuruudaha ugu horeysay ee shuruudaha ugu horeysay ee shuruudaha ugu horeysay ee shuruudaha ugu horeysay ee shuruudaha ugu horeysay ee shuruudaha ugu horeysay ee shuruudaha. Haku Task Task Waxaa laga yaqaan 'Swift Competition', a Qalabka dhismaha ugu horeysay ee shuruudaha ugu horeysay ee shuruudaha ugu horeysay ee shuruudaha ugu horeysay ee shuruudaha ugu horeysay ee shuruudaha ugu horeysay ee shuruudaha ugu horeysay ee shuruudaha ugu horeysay ee shuruudaha ugu horeysay. Qalabka, A Iska dhismaha waa mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah. Task async Task 💡 Taageerada waxaa loo isticmaali karaa by pool thread cooperative. The pool thread cooperative waxaa loo isticmaali karaa in ay isticmaali karaa concurrency in ay isticmaali karaa in ay isticmaali karaa in ay isticmaali karaa asynchronous operations in Swift. 💡 Taageerada waxaa loo isticmaali karaa by pool thread cooperative. The pool thread cooperative waxaa loo isticmaali karaa in ay isticmaali karaa concurrency in ay isticmaali karaa in ay isticmaali karaa in ay isticmaali karaa asynchronous operations in Swift. Markaasadda waxaa laga yaabaa in ay ku yaalaa in ay ku yaalaa in ay ku yaalaa in ay ku yaalaa in ay ku yaalaa in ay ku yaalaa in ay ku yaalaa in ay ku yaalaa in ay ku yaalaa in ay ku yaalaa. Qalabka A Task Qalabka waxaa loo isticmaali karaa , oo ka mid ah loo yaqaan asynchronous operation: Task Haku Haku Task(priority: .userInitiated) { await fetchData() } Sida loo helo a in la isticmaali karaa injiilada standard (e.g. Shuruudaha ugu horeysay ee shuruudaha ugu horeysay ee shuruudaha ugu horeysay ee shuruudaha ugu horeysay ee shuruudaha ugu horeysay ee shuruudaha ugu horeysay ee shuruudaha ugu horeysay ee shuruudaha ugu horeysay ee shuruudaha ugu horeysay ee shuruudaha ugu horeysay ee shuruudaha ugu horeysay ee shuruudaha ugu horeysay ee shuruudaha ugu horeysay ee shuruudaha ugu horeysay ee shuruudaha ugu horeysay ee shuruudaha ugu horeysay ee shuruudaha ugu horeysay ee shuruudaha. Task Haku Haku 💡 Swift 6.2 introduces a significant change to how concurrency is handled: by default, all code runs on MainActor . To run code on a background, Swift 6.2 adds a new attribute @concurrent . You can also use nonisolated if the code doesn’t require access to the main actor. WWDC waxay ka soo bandhigay Swift 💡 Swift 6.2 introduces a significant change to how concurrency is handled: by default, all code runs on MainActor Sida loo yaabaa codka ah, Swift 6.2 waxay ku yaalaa adeegyada cusub. @concurrent Waxaad sidoo kale isticmaali karaa nonisolated Sida loo yaqaan 'WWDC Embracing Swift Concurrency' WWDC waxay ka soo bandhigay Swift WWDC waxay ka soo bandhigay Swift Sida loo yaqaan 'Swift Concurrency', Swift runtime ayaa loo isticmaali karaa nidaamka mid ah oo loo yaqaan 'Swift Concurrency'. Markaad ka mid ah wax soo saarka ah oo ka mid ah wax soo saarka ah oo ka mid ah wax soo saarka ah oo ka mid ah wax soo saarka iyo wax soo saarka. @_inheritActorContext Sida loo yaqaan 'Swift', runtime ayaa ka horumariyo in la soo bandhigay. Sida loo isticmaali karaa in ay ku saabsan , oo waa mid ka mid ah wax soo saarka kompilator iyo runtime. @_inheritActorContext sending 💡 What is sending? sending is a new keyword introduced in Swift 6 as part of the language’s move towards safer and more explicit concurrency. Waxaa loo isticmaali karaa in la maray parameter function and return values that are moved across concurrency boundaries. Waxaa la isticmaali karaa in ay ku yaalaa in ay ka mid ah noocyable-types, si ay u isticmaali karaa memory security and preventing-after-use-move errors. When a parameter is marked with sending, compiler enforces that the original instance is no longer accessed after the transfer. func process(_ data: sending MyNonCopyableType) async { // `data` is moved here and can’t be used elsewhere after the call } Sidaa waa sending ? sending Iska waa mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ah mid ka mid ah mid ka mid ah mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ah mid ka mid ah mid ka mid ah mid ah mid ka mid ah mid ka mid ah mid ah mid ka mid ah mid ah mid ka mid ah mid ka mid ah mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ah mid ka mid ah mid ka mid ah mid ah mid ka mid ah mid ah mid sending , kompilator waxay dhigi doonaa in la xiran tahay in la xiran tahay in la xiran tahay ka dib markii la xiran. func process(_ data: sending MyNonCopyableType) async { // `data` is moved here and can’t be used elsewhere after the call } Sida loo helo a Waayo, sidoo kale waxaa laga yaabaa in ay ku saabsan wax soo saarka iyo wax soo saarka. Marka aad u isticmaali karaa compile-time. Protokoll iyo Haku Function. Task.detached Sendable Sendable @Sendable Qalabka Qalabka Qalabka Qalabka Waxaad ka soo xigtay in la xigtay, sidoo kale in la xigtay in la xigtay. Sendable Task waxaa ka soo xiriir priorities, ka mid ah sida loo soo xiriir Grand Central Dispatch. Qalabka Task Task.detached When working with Swift Concurrency, it’s important to understand the difference between iyo Sida loo yaabaa in ay u baahan tahay in ay ku yaalaa asynchronous work. Task Task.detached Task Haku Qalabka ugu horeysay ee shuruudaha ugu horeysay ee shuruudaha ugu horeysay ee shuruudaha ugu horeysay ee shuruudaha ugu horeysay ee shuruudaha. or any custom actor) and priority. It’s commonly used when you want to spawn a new asynchronous operation that still respects the current structured concurrency tree or actor isolation. This is especially useful for UI updates or working inside specific concurrency domains. Task MainActor Task { await updateUI() } Sida loo yaabaa, waxaa loo yaabaa in ka mid ah ka mid ah mid ka mid ah mid ka mid ah mid ah mid ka mid ah mid ah mid ka mid ah mid ah mid ka mid ah mid ah mid ka mid ah mid ah mid ka mid ah mid ah mid ah mid ka mid ah mid ah mid ka mid ah mid ah mid ka mid ah mid ah mid ka mid ah mid ah mid ka mid ah mid ah mid ka mid ah mid ah mid ah mid ka mid ah. will also run on the main actor unless explicitly moved elsewhere. Task Task.detached Haku: Haku creates a completely independent task. It doesn’t inherit the current actor context or priority. This means it starts in a global concurrent context and requires manage safety, especially when accessing shared data. Task.detached Task.detached { await performBackgroundWork() } Use Waayo, waxaa laga yaabaa in ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah. Task.detached Shirkadda Thread Pool A Cooperative Thread Pool in Swift Concurrency waa mid ka mid ah nidaamka oo ku raaxay wax soo saarka asynchronous sida loo soo saarka in ka mid ah ka mid ah ka mid ah ka mid ah ka mid ah ka mid ah ka mid ah macluumaadka CPU. A Cooperative Thread Pool in Swift Concurrency waa mid ka mid ah nidaamka oo ku raaxay wax soo saarka asynchronous sida loo soo saarka in ka mid ah ka mid ah ka mid ah ka mid ah ka mid ah ka mid ah ka mid ah macluumaadka CPU. Swift Concurrency operates using cooperative thread pool designed for efficient scheduling and minimal thread overhead. Unlike traditional thread-per-task executing model, Swift’s approach emphasizes structured concurrency and resource-aware scheduling. Swift Concurrency waxaa loo isticmaali karaa mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ah mid ka mid ah mid ah mid ka mid ah Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Macada 16-core, waxaa laga yaabaa in ay ka mid ah 64-threads ku yaalaa by Swift Concurrency kaliya - oo ka mid ah GCD. Xafiiska : Max threads = (CPU cores) × (dedicated quality-of-service buckets) Sida loo yaqaan 16 Core System: 16 cores × 4 QoS buckets = 64 threads Qalabka QoS waa mid ka mid ah dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha QoS Buckets iyo Task Priority QoS Buckets iyo Task Priority Haku Qalabka 6 waa mid ka mid ah mid ka mid ah mid ah: TaskPriority → usedInitiated high Qalabka Low Xafiisyada xafiisyada midabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Markaad ka mid ah wax soo saarka? Markaad ka mid ah wax soo saarka? Swift Concurrency waxay ku dhigi karaa mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ah mid ka mid ah mid ah mid ka mid ah Qalabka dhismaha ugu horeysay ee Darwin waxaa loo isticmaali karaa macluumaadka macluumaadka iyo dhismaha sare ee macluumaadka. Shuruudaha - ma ahaatee, ma ahaatee, ma ahaatee, ma ahaatee. pthreads Qalabka Priority Swift waxaa loo isticmaali karaa nidaamka priority for tasks, sida Grand Central Dispatch (GCD), laakiin waxaa laga yaabaa semantically in model concorrency. Haku: Task Task(priority: .userInitiated) { await loadUserData() } The available priorities are defined by the Haku: TaskPriority Priority Description / .high .userInitiated For tasks initiated by user interaction that require immediate feedback. .medium For tasks that the user is not actively waiting for. / .low .utility For long-running tasks that don’t require immediate results, such as copying files or importing data. .background For background tasks that the user is not directly aware of. Primarily used for work the user cannot see. QEEBE .high .userInitiated Waayo, waxaa laga yaabaa in la soo bandhigay in la soo bandhigay in la soo bandhigay in la soo bandhigay. .medium Waayo, waxaa loo isticmaali karaa in ay isticmaali karaa. QEEBE .low .utility Waayo, waxaa loo isticmaali karaa in ay ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah. .background Waayo, waxaa loo isticmaali karaa in ay ka mid ah wax soo saarka ah oo loo isticmaali karaa. Qalabka ugu horeysay ee loo yaqaan "Task with Different Priorities" Qalabka ugu horeysay ee loo yaqaan "Task with Different Priorities" Sida loo helo a Markaad ka mid ah (Default) Qalabka dhismaha iyo dhismaha dhismaha iyo dhismaha dhismaha, dhismaha dhismaha iyo dhismaha dhismaha, dhismaha dhismaha dhismaha, dhismaha dhismaha dhismaha, dhismaha dhismaha dhismaha dhismaha, dhismaha dhismaha dhismaha dhismaha, dhismaha dhismaha dhismaha dhismaha dhismaha dhismaha , iyo mid ka mid ah waa .high. Waxaad ka soo bandhigay in ay ku yaalaa priorities ka mid ah oo ka mid ah xafiisyada. Task .medium .low Task { // .medium by default Task(priority: .low) { print("\(1), "thread: \(Thread.current)", priority: \(Task.currentPriority)") } Task(priority: .high) { print("\(2), "thread: \(Thread.current)", priority: \(Task.currentPriority)") } } // 1, thread: {number = 1, name = main}, priority: TaskPriority.low // 2, thread: {number = 1, name = main}, priority: TaskPriority.high Sida loo yaabaa in ay ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ah mid ka mid ah mid ah mid ka mid ah mid ah mid ka mid ah mid ah mid ka mid ah mid ah mid ka mid ah mid ka mid ah mid ah mid ka mid ah mid ah mid ka mid ah. iyo Blocks ka mid ah dhismaha ugu horeysay oo ka mid ah wax soo saarka. .high .low Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Task { Task(priority: .high) { Task { print("\(1), "thread: \(Thread.current)", priority: \(Task.currentPriority)") } } Task(priority: .low) { print("\(2), "thread: \(Thread.current)", priority: \(Task.currentPriority)") Task { print("\(3), "thread: \(Thread.current)", priority: \(Task.currentPriority)") } Task(priority: .medium) { print("\(4), "thread: \(Thread.current)", priority: \(Task.currentPriority)") } } } // 2, thread: {number = 1, name = main}, priority: TaskPriority.low // 1, thread: {number = 1, name = main}, priority: TaskPriority.high // 3, thread: {number = 1, name = main}, priority: TaskPriority.low // 4, thread: {number = 1, name = main}, priority: TaskPriority.medium Waxaad ka mid ah ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ah mid ka mid ah mid ka mid ah mid ka mid ah. Qalabka Priority Escalation Qalabka Priority Escalation Task(priority: .high) { Task { print("\(1), "thread: \(Thread.current)", priority: \(Task.currentPriority)") } await Task(priority: .low) { print("\(2), "thread: \(Thread.current)", priority: \(Task.currentPriority)") await Task { print("\(3), "thread: \(Thread.current)", priority: \(Task.currentPriority)") }.value Task(priority: .medium) { print("\(4), "thread: \(Thread.current)", priority: \(Task.currentPriority)") } }.value } // 1, thread: {number = 1, name = main}, priority: TaskPriority.high // 2, thread: {number = 1, name = main}, priority: TaskPriority.high // 3, thread: {number = 1, name = main}, priority: TaskPriority.high // 4, thread: {number = 1, name = main}, priority: TaskPriority.medium Markaas ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah. Sida loo yaabaa: Task 2, oo waa .low, waxaa lagu dhiso .high ka mid ah oo ay ku yaalaa. Tareenka 3, oo ka mid ka mid ah wax soo saarka ah, waxaa ka mid ah wax soo saarka ugu soo saarka ah (Tareenka 2) iyo sidoo kale waxaa ka mid ah wax soo saarka. Taageerada 4 waxay ku dhigi karaa .medium, sidaas oo ay ku yaalaa in la xira. Ma rabtaa Priority Haku: Haku Haku: Haku Qalabka Qalabka ( Marka aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan tahay in aad u baahan yahay. Task.detached Task(priority: .high) { Task.detached { print("\(1), "thread: \(Thread.current)", priority: \(Task.currentPriority)") } Task(priority: .low) { print("\(2), "thread: \(Thread.current)", priority: \(Task.currentPriority)") Task.detached { print("\(3), "thread: \(Thread.current)", priority: \(Task.currentPriority)") } Task(priority: .medium) { print("\(4), "thread: \(Thread.current)", priority: \(Task.currentPriority)") } } } // 1, thread: {number = 4, name = (null)}, priority: TaskPriority.medium // 2, thread: {number = 1, name = main}, priority: TaskPriority.low // 3, thread: {number = 4, name = (null)}, priority: TaskPriority.medium // 4, thread: {number = 1, name = main}, priority: TaskPriority.medium Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka Qalabka In Swift, wax kasta oo ka mid ah ka mid ah function using Waxaa la soo bandhigiisa in la soo bandhigiisa in la soo bandhigiisa in la soo bandhigiisa in la soo bandhigiisa. async await Here’s an example: func fetchData() async -> String { let result = await networkClient.load() return result } In this case, Waayo, waxaa laga yaabaa in ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah. Waayo, kompilator waxay ku xiran tahay this function in a state machine that tracks its progress and internal variables. await networkClient.load() load() Sub the Hood: Qalabka iyo mashiinka State Haku Function in Swift waxaa la aasaasay in macquul ah. Markaad ka mid ah wax soo saarka, ka dib markii la soo saarka Marka: Swift async await await Saves the current state of the function - including local variables and the current instruction pointer. Waayo, waxaa loo yaabaa in ay ka mid ah shuruudaha iyo shuruudaha. Sida loo yaqaan asynchronous, waxaa loo yaqaan asynchronous, waxaa loo yaqaan asynchronous, waxaa loo yaqaan asynchronous. Sida loo yaqaan 'Continuation-passing style' (CPS) waxaa loo isticmaali karaa in badan oo ka mid ah nidaamka functional. In model concurrency ee Swift, this is orchestrated by internal types such as Waxaa laga yaabaa in la soo bandhigiisa. ParticialAsyncTask Waqtiga ah! = Block Marka aad In Swift, thread-ka ugu horeysay waa in la xiriira, laakiin: await Taageerada waxaa laga yaabaa in ay ka mid ah wax soo saarka ah oo ay ka mid ah wax soo saarka. Qalabka ugu horeysay waa in la soo saarka. Markaad ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah. Sida loo yaabaa wax soo saarka ah iyo wax soo saarka ah ee loo yaabaa in ay ka mid ah wax soo saarka. . async/await DispatchQueue.sync Qalabka ugu horeysay ee loo yaabaa in ay ka mid ah wax soo saarka. Qalabka ( Qalabka ( is a static method provided by Swift’s concurrency system that voluntarily suspends the current task, giving the system opportunity to run other enqueued tasks. It’s especially useful in long-running asynchronous operations or tight loops that don’t naturally contains suspension points. Task.yield() func processLargeBatch() async { for i in 0..<1_000_000 { if i % 10_000 == 0 { await Task.yield() } } } Haku , this loop would monopolize the executor. By inserting waqti ka hor si ay u shaqeeyaan macluumaadka concurrency ee Swift, si ay u baahan tahay in ay ku yaalaa responsiveness iyo kharashka. await await Task.yield() Ku saabsan Hood Calling await Waayo, waxaa laga yaabaa in ay ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ka mid ah mid ah mid ka mid ah mid ka mid ah mid ah mid ka mid ah mid ah mid ka mid ah mid ka mid ah mid ah mid ka mid ah mid ka mid ah mid ah mid ka mid ah mid ah mid ka mid ah. Task.yield() It’s part of Swift’s cooperative multitasking model: tasks run to the next suspension point and are expected to yield fairly. Unlike preemptive systems (e.g., threads), Swift tasks don’t get forcibly interrupted — they must voluntarily yield control. Qalabka Swift 6 waxay ku yaalaa in ay ku yaalaa in ay ku yaalaa in ay ku yaalaa in ay ku yaalaa in ay ku yaalaa in ay ku yaalaa in ay ku yaalaa in ay ku yaalaa in ay ku yaalaa in ay ku yaalaa in ay ku yaalaa in ay ku yaalaa in ay ku yaalaa in ay ku yaalaa in ay ku yaalaa.