GetGetSystemTimeAsFileTimeFnPtr()

static unsafe delegate *unmanaged[SuppressGCTransition]< ulong *, void > System.DateTime.GetGetSystemTimeAsFileTimeFnPtr ( )

inlinestaticprivate

Definition at line 1562 of file DateTime.cs.

    {
        IntPtr handle = Interop.Kernel32.LoadLibraryEx("kernel32.dll", IntPtr.Zero, 2048);
        IntPtr intPtr = NativeLibrary.GetExport(handle, "GetSystemTimeAsFileTime");
        if (NativeLibrary.TryGetExport(handle, "GetSystemTimePreciseAsFileTime", out var address))
        {
            System.Runtime.CompilerServices.Unsafe.SkipInit(out long num);
            System.Runtime.CompilerServices.Unsafe.SkipInit(out long num2);
            for (int i = 0; i < 10; i++)
            {
                ((delegate* unmanaged[SuppressGCTransition]<long*, void>)(void*)intPtr)(&num);
                ((delegate* unmanaged[SuppressGCTransition]<long*, void>)(void*)address)(&num2);
                if (Math.Abs(num2 - num) <= 1000000)
                {
                    intPtr = address;
                    break;
                }
            }
        }
        return (delegate* unmanaged[SuppressGCTransition]<ulong*, void>)(void*)intPtr;
    }

References System.Math.Abs(), System.Runtime.Serialization.Dictionary, System.Runtime.InteropServices.NativeLibrary.GetExport(), System.handle, Interop.Kernel32.LoadLibraryEx(), System.Runtime.InteropServices.NativeLibrary.TryGetExport(), and System.IntPtr.Zero.