swift_begin_day10

file2.swift

// Thread　の例

import Foundation
import PlaygroundSupport

// Playground上で非同期処理を有効にする
PlaygroundPage.current.needsIndefiniteExecution = true

class SubThread: Thread {
    override func main() {
        print("実行されたよー！")
    }
}

let thread = SubThread()
thread.start()

files1.swift

// Operation・OperationQueue　の例

import Foundation
import PlaygroundSupport

// Playground上で非同期処理を有効にする
PlaygroundPage.current.needsIndefiniteExecution = true

class SubOperation: Operation {
    let opeName: String
    init(opeName: String) {
        self.opeName = opeName
    }
    
    override func main() {
        // １秒待つ
        Thread.sleep(forTimeInterval: 1)
        print("名前 \(opeName) 非同期処理が実行されたで")
    }
}

// キュー： OperationQueueの生成
let queue = OperationQueue()
queue.name = "com.test.myOpeationQueue"
queue.maxConcurrentOperationCount = 2 //特定のキューが同時に実行できる数.
queue.qualityOfService = .userInitiated // QoS型と同じ内容.

// タスク追加の例

var operations = [SubOperation]()
for i in 0..<10 {
    operations.append(SubOperation(opeName: "operation.\(i)"))
}

queue.addOperations(operations, waitUntilFinished: false)
print("Operations are added")