Method ensureConsole

src/Update/Program.cs:782–794

()

        static int consoleCreated = 0;
        static void ensureConsole()
        {
            if (Environment.OSVersion.Platform != PlatformID.Win32NT) return;

            if (Interlocked.CompareExchange(ref consoleCreated, 1, 0) == 1) return;

            if (!NativeMethods.AttachConsole(-1)) {
                NativeMethods.AllocConsole();
            }

            NativeMethods.GetStdHandle(StandardHandles.STD_ERROR_HANDLE);
            NativeMethods.GetStdHandle(StandardHandles.STD_OUTPUT_HANDLE);
        }
    }

    public class ProgressSource