kristopherjohnson

import Foundation

/// Protocol for NSLocking objects that also provide tryLock()
public protocol TryLockable: NSLocking {
    func tryLock() -> Bool
}

// These Cocoa classes have tryLock()
extension NSLock: TryLockable {}
extension NSRecursiveLock: TryLockable {}

armstrongnate

import Foundation

let config = NSURLSessionConfiguration.defaultSessionConfiguration()
let userPasswordString = "username@gmail.com:password"
let userPasswordData = userPasswordString.dataUsingEncoding(NSUTF8StringEncoding)
let base64EncodedCredential = userPasswordData!.base64EncodedStringWithOptions(nil)
let authString = "Basic \(base64EncodedCredential)"
config.HTTPAdditionalHeaders = ["Authorization" : authString]
let session = NSURLSession(configuration: config)