17/02/21 18:08:20.55 aFqTV30T0.net
DispatchWorkItem版
if #availableはguard文だとコンパイル通らなかった‥
if #available(OSX 10.10, *) {
let queue = DispatchQueue(label: "queue", attributes: .concurrent)
let printTask = DispatchWorkItem { print("dic = ¥(dic)") }
let url = URL(string: "URLﾘﾝｸ(date.jsontest.com))!
let task = URLSession.shared.dataTask(with: url) { data, response, error in
if let jsonData = data {
printJSON(jsonData)
queue.async(execute: printTask)
}
}
task.resume()
printTask.wait()
exit(EXIT_SUCCESS)
} else {
print("require OSX10.10 or newer"); exit(EXIT_FAILURE);
}