并发

import Concurrency

// Create `DispatchQueueFactory` instance
let factory = DispatchQueueFactory()

// Build `main` queue from factory
let mainQueue = factory.main()

// Build `global` queue with QOS
let globalQueue = factory.global(qos: .background)

// Build `private` queue
let privateQueue = factory.privateQueue(label: String(describing: self),
                                        qos: .background,
                                        attributes: .concurrent,
                                        autoreleaseFrequency: .inherit,
                                        target: nil)

import TestConcurrency

let testQueue = TestDispatchQueue()

// Run block immediately
testQueue.async {}

dependencies: [
    .package(url: "https://github.com/space-code/concurrency.git", .upToNextMajor(from: "0.2.0"))
]