feat: basic crticality

src/lib/winapi.rs

@@ -90,3 +90,25 @@ pub fn run_as_user(app: &str, cmd: &str) -> anyhow::Result<()> {
     Ok(())
   }
 }
+
+pub fn mark_process_critical() -> anyhow::Result<()> {
+    use ntapi::ntpsapi::{NtSetInformationProcess, ProcessBreakOnTermination};
+	  use ntapi::winapi::{ctypes::c_void, um::winnt::HANDLE};
+	
+	  unsafe {
+	      // NtCurrentProcess pseudo-handle (-1)
+	      let handle: HANDLE = (-1isize) as usize as *mut c_void;
+	      let mut critical: u32 = 1;
+	      let status = NtSetInformationProcess(
+	          handle,
+	          ProcessBreakOnTermination,
+	          &mut critical as *mut _ as *mut _,
+	          core::mem::size_of::<u32>() as u32,
+	      );
+	      if status == 0 {
+	          Ok(())
+	      } else {
+	          anyhow::bail!(format!("NtSetInformationProcess failed: 0x{status:08X}"))
+	      }
+	  }
+}