https://github.com/gfx/swift-multithreading

A demo code for synchronization in Swift
https://github.com/gfx/swift-multithreading

Last synced: 26 days ago
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A demo code for synchronization in Swift

• Host: GitHub
• URL: https://github.com/gfx/swift-multithreading
• Owner: gfx
• Created: 2014-07-23T13:38:41.000Z (over 10 years ago)
• Default Branch: master
• Last Pushed: 2015-11-23T01:44:21.000Z (almost 9 years ago)
• Last Synced: 2023-04-09T21:19:25.884Z (over 1 year ago)
• Language: Swift
• Homepage: http://qiita.com/gfx/items/532f9f975de5a965c58a
• Size: 17.6 KB
• Stars: 13
• Watchers: 3
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# Synchronization in Swift

Swift has no synchornozation functionality in the language,

but Foundation framework is available to synchronize the code.

## Use of `dispatch_sync()`

```swift

class Foo {

  var value = 0

  let sync = dispatch_queue_create("\(self.dynamicType).sync", DISPATCH_QUEUE_SERIAL)

  func incrementWithSerialQueue() {

      dispatch_sync(sync) {

          self.value += 1

      }

  }

```

## Use of `objc_sync_enter()` and `objc_sync_exit()`

```swift

class AutoSync {

    let object : AnyObject

    init(_ obj : AnyObject) {

        object = obj

        objc_sync_enter(object)

    }

    deinit {

        objc_sync_exit(object)

    }

}

class Foo {

  var value = 0

  func incrementWithObjcSync() {

      let lock = AutoSync(self)

      self.value += 1

  }

}

```