try wait hw check config subprocess

Signed-off-by: fufesou <shuanglongchen@yeah.net>

libs/scrap/src/common/hwcodec.rs

@@ -3,7 +3,7 @@ use crate::{
     hw, ImageFormat, HW_STRIDE_ALIGN,
 };
 use hbb_common::{
-    anyhow::{anyhow, Context},
+    anyhow::{allow_err, anyhow, Context},
     bytes::Bytes,
     config::HwCodecConfig,
     get_time, lazy_static, log,
@@ -352,7 +352,19 @@ pub fn check_config_process(force_reset: bool) {
                     let second = 3;
                     std::thread::sleep(std::time::Duration::from_secs(second));
                     // kill: Different platforms have different results
-                    child.kill().ok();
+                    allow_err!(child.kill());
+                    std::thread::sleep(std::time::Duration::from_millis(30));
+                    match ps.try_wait() {
+                        Ok(Some(status)) => log::info!("Check hwcodec config, exit with: {status}"),
+                        Ok(None) => {
+                            log::info!(
+                                "Check hwcodec config, status not ready yet, let's really wait"
+                            );
+                            let res = child.wait();
+                            log::info!("Check hwcodec config, wait result: {res:?}");
+                        }
+                        Err(e) => println!("Check hwcodec config, error attempting to wait: {e}"),
+                    }
                     HwCodecConfig::refresh();
                 }
             }