如何在linux上的.NET内核中获取系统日期更改通知？

using System;
using System.IO;
using System.Runtime.InteropServices;

const int IN_MODIFY = 0x00000002;
const string FilePath = "/proc/datetime";

[StructLayout(LayoutKind.Sequential)]
struct inotify_event
{
    public int wd;
    public uint mask;
    public uint cookie;
    public uint len;
    public IntPtr name;
}

[DllImport("libc.so.6", EntryPoint = "inotify_init", SetLastError = true)]
static extern int inotify_init();

[DllImport("libc.so.6", EntryPoint = "inotify_add_watch", SetLastError = true)]
static extern int inotify_add_watch(int fd, string path, uint mask);

[DllImport("libc.so.6", EntryPoint = "inotify_rm_watch", SetLastError = true)]
static extern int inotify_rm_watch(int fd, int wd);

[DllImport("libc.so.6", EntryPoint = "read", SetLastError = true)]
static extern int read(int fd, IntPtr buffer, uint count);

int fd = inotify_init();
int wd = inotify_add_watch(fd, FilePath, IN_MODIFY);

byte[] buffer = new byte[1024];
IntPtr bufferPtr = Marshal.AllocHGlobal(buffer.Length);
while (true)
{
    int bytesRead = read(fd, bufferPtr, (uint)buffer.Length);
    if (bytesRead > 0)
    {
        for (int i = 0; i < bytesRead; i += Marshal.SizeOf<inotify_event>())
        {
            inotify_event evt = Marshal.PtrToStructure<inotify_event>(bufferPtr + i);
            if (evt.mask == IN_MODIFY && evt.name.ToString() == "datetime")
            {
                // 处理日期更改通知
                DateTime newDateTime = DateTime.Now;
                Console.WriteLine("系统日期已更改为：" + newDateTime.ToString());
            }
        }
    }
}

inotify_rm_watch(fd, wd);
Marshal.FreeHGlobal(bufferPtr);