Do not wait unfinished tokio task if they does not exit after 30 seconds

Signed-off-by: Eval EXEC <execvy@gmail.com>

ckb-bin/src/lib.rs

@@ -6,10 +6,9 @@ mod setup_guard;
 mod subcommand;
 
 use ckb_app_config::{cli, ExitCode, Setup};
-use ckb_async_runtime::new_global_runtime;
+use ckb_async_runtime::{new_global_runtime, tokio::time::timeout};
 use ckb_build_info::Version;
 use ckb_logger::info;
-use ckb_network::tokio;
 use helper::raise_fd_limit;
 use setup_guard::SetupGuard;
 
@@ -79,13 +78,14 @@ pub fn run_app(version: Version) -> Result<(), ExitCode> {
     if matches!(cmd, cli::CMD_RUN) {
         handle.drop_guard();
 
-        tokio::task::block_in_place(|| {
+        handle.block_on(async move {
             info!("waiting all tokio tasks exit...");
-            handle_stop_rx.blocking_recv();
-            info!("all tokio tasks and threads have exited, ckb shutdown");
+            match timeout(std::time::Duration::from_secs(20), handle_stop_rx.recv()).await {
+                Ok(_) => info!("all tokio tasks and threads have exited, ckb shutdown"),
+                Err(_) => info!("wait tokio tasks exit time out, ckb shutdown"),
+            }
         });
     }
-
     ret
 }