System.Threading.CompressedStackSwitcher.Undo C# (CSharp) Method

        public void Undo()
        {
            if (curr_CS == null && prev_CS == null)
                return;
            if (prev_ADStack != (IntPtr)0)
                CompressedStack.RestoreAppDomainStack(prev_ADStack);
            CompressedStack.SetCompressedStackThread(prev_CS);

            prev_CS = null;
            curr_CS = null;
            prev_ADStack = (IntPtr)0;
        }
    }