Merge branch 'release/3.1' antelopeIO/leap into GH-547-ehp-producer-a…

…pi-doc-cleanup-3.1

plugins/http_plugin/http_plugin.cpp

@@ -912,6 +912,7 @@ class http_plugin_impl : public std::enable_shared_from_this<http_plugin_impl> {
       my->url_handlers.clear();
 
       app().post( 0, [me = my](){} ); // keep my pointer alive until queue is drained
+      fc_ilog( logger, "exit shutdown");
    }
 
    void http_plugin::add_handler(const string& url, const url_handler& handler, int priority) {

plugins/producer_plugin/producer_plugin.cpp

@@ -1242,6 +1242,7 @@ void producer_plugin::plugin_shutdown() {
    }
 
    app().post( 0, [me = my](){} ); // keep my pointer alive until queue is drained
+   fc_ilog(_log, "exit shutdown");
 }
 
 void producer_plugin::handle_sighup() {

plugins/trace_api_plugin/store_provider.cpp

@@ -307,8 +307,11 @@ namespace eosio::trace_api {
                _maintenance_condition.wait(lock);
             }
 
+            if (_maintenance_shutdown) {
+               break;
+            }
+
             uint32_t best_known_lib = _best_known_lib;
-            bool shutdown = _maintenance_shutdown;
             lock.unlock();
 
             log(std::string("Waking up to handle lib: ") + std::to_string(best_known_lib));
@@ -319,10 +322,6 @@ namespace eosio::trace_api {
                   last_lib = best_known_lib;
                } FC_LOG_AND_DROP();
             }
-
-            if (shutdown) {
-               break;
-            }
          }
       });
    }

plugins/trace_api_plugin/trace_api_plugin.cpp

@@ -455,6 +455,7 @@ void trace_api_plugin::plugin_startup() {
 void trace_api_plugin::plugin_shutdown() {
    my->plugin_shutdown();
    rpc->plugin_shutdown();
+   fc_ilog( _log, "exit shutdown");
 }
 
 void trace_api_plugin::handle_sighup() {