codec thread count depending on cpu condition

Signed-off-by: 21pages <pages21@163.com>

src/platform/windows.rs

@@ -1547,18 +1547,8 @@ pub fn elevate_or_run_as_system(is_setup: bool, is_elevate: bool, is_run_as_syst
     }
 }
 
-// https://github.com/mgostIH/process_list/blob/master/src/windows/mod.rs
-#[repr(transparent)]
-pub(self) struct RAIIHandle(pub HANDLE);
-
-impl Drop for RAIIHandle {
-    fn drop(&mut self) {
-        // This never gives problem except when running under a debugger.
-        unsafe { CloseHandle(self.0) };
-    }
-}
-
 pub fn is_elevated(process_id: Option<DWORD>) -> ResultType<bool> {
+    use hbb_common::platform::windows::RAIIHandle;
     unsafe {
         let handle: HANDLE = match process_id {
             Some(process_id) => OpenProcess(PROCESS_QUERY_LIMITED_INFORMATION, FALSE, process_id),