Question

我试图将我的Obj-C代码移植到Swift项目，并且在编译SIGPIPE处理程序时遇到困难：

func SigPipeHandler()
{
  print(@"We Got a Pipe Single :%d____________",s);
}


func application(_ application: UIApplication,
                 didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]? = nil) -> Bool {
    signal(SIGPIPE, SigPipeHandler);
    // Override point for customization after application launch.
    return true
}

我遇到了错误：

无法将类型'（）->（）'的值转换为预期的参数类型 ``（（@convention（c）（Int32）->虚空）？'

Answer 1

let handler: @convention(c) (Int32) -> () = { sig in
    // handle the signal somehow
    print("error", sig)
}


func application(_ application: UIApplication,
                 didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]? = nil) -> Bool {
    signal(SIGPIPE, handler);
    // Override point for customization after application launch.
    return true
}

在Swift 4中处理SIGPIPE

1 个答案: