Add WiFi tear-down debug printing. (#1801)

toitlang · Sep 12, 2023 · 56ec6e2 · 56ec6e2
1 parent efb2bba
commit 56ec6e2
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Showing 2 changed files with 55 additions and 0 deletions.
diff --git a/src/resources/wifi_esp32.cc b/src/resources/wifi_esp32.cc
@@ -154,16 +154,42 @@ class WifiResourceGroup : public ResourceGroup {
   }
 
   ~WifiResourceGroup() {
+#if CONFIG_WPA_DEBUG_PRINT
+    printf("[wifi] ~WifiResourceGroup()\n");
+    printf("[wifi] esp_wifi_deinit()\n");
+#endif
     esp_err_t err = esp_wifi_deinit();
+#if CONFIG_WPA_DEBUG_PRINT
+    printf("[wifi] esp_wifi_deinit() -> done\n");
+#endif
     if (err == ESP_ERR_WIFI_NOT_STOPPED) {
+#if CONFIG_WPA_DEBUG_PRINT
+      printf("[wifi] esp_wifi_stop()\n");
+#endif
       FATAL_IF_NOT_ESP_OK(esp_wifi_stop());
+#if CONFIG_WPA_DEBUG_PRINT
+      printf("[wifi] esp_wifi_stop() -> done\n");
+      printf("[wifi] esp_wifi_deinit()\n");
+#endif
       FATAL_IF_NOT_ESP_OK(esp_wifi_deinit());
+#if CONFIG_WPA_DEBUG_PRINT
+      printf("[wifi] esp_wifi_deinit() -> done\n");
+#endif
     } else {
       FATAL_IF_NOT_ESP_OK(err);
     }
 
+#if CONFIG_WPA_DEBUG_PRINT
+    printf("[wifi] esp_netif_destroy_default_wifi()\n");
+#endif
     esp_netif_destroy_default_wifi(netif_);
+#if CONFIG_WPA_DEBUG_PRINT
+    printf("[wifi] esp_netif_destroy_default_wifi() -> done\n");
+#endif
     wifi_pool.put(id_);
+#if CONFIG_WPA_DEBUG_PRINT
+    printf("[wifi] ~WifiResourceGroup() -> done\n");
+#endif
   }
 
   uint32_t on_event(Resource* resource, word data, uint32_t state) override;

diff --git a/src/scheduler.cc b/src/scheduler.cc
@@ -172,6 +172,10 @@ Scheduler::ExitState Scheduler::launch_program(Locker& locker, Process* process)
     }
   }
 
+#if CONFIG_WPA_DEBUG_PRINT
+  printf("[scheduler] exit - reason=%d\n", exit_state_.reason);
+#endif
+
   if (!has_exit_reason()) {
     exit_state_.reason = EXIT_DONE;
   }
@@ -182,6 +186,10 @@ Scheduler::ExitState Scheduler::launch_program(Locker& locker, Process* process)
     delete thread;
   }
 
+#if CONFIG_WPA_DEBUG_PRINT
+  printf("[scheduler] exit - threads deleted\n");
+#endif
+
   for (int i = 0; i < NUMBER_OF_READY_QUEUES; i++) {
     ProcessListFromScheduler& ready_queue = ready_queue_[i];
     while (ready_queue.remove_first()) {
@@ -200,6 +208,10 @@ Scheduler::ExitState Scheduler::launch_program(Locker& locker, Process* process)
     delete group;
   }
 
+#if CONFIG_WPA_DEBUG_PRINT
+  printf("[scheduler] exit - processes deleted\n");
+#endif
+
   return exit_state_;
 }
 
@@ -405,6 +417,11 @@ void Scheduler::run(SchedulerThread* scheduler_thread) {
     run_process(locker, process, scheduler_thread);
   }
 
+#ifdef CONFIG_WPA_DEBUG_PRINT
+  printf("[scheduler] stopping scheduler thread (threads=%d->%d)\n",
+      num_threads_, num_threads_ - 1);
+#endif
+
   // Notify potential other thread, that no more processes are left.
   OS::signal(has_processes_);
 
@@ -722,6 +739,10 @@ void Scheduler::run_process(Locker& locker, Process* process, SchedulerThread* s
     }
 
     case Interpreter::Result::DEEP_SLEEP: {
+#if CONFIG_WPA_DEBUG_PRINT
+      printf("[scheduler] process requested deep sleep (processes=%d, threads=%d)\n",
+          num_processes_, num_threads_);
+#endif
       ExitState exit(EXIT_DEEP_SLEEP, result.value());
       terminate_execution(locker, exit);
       break;
@@ -871,13 +892,21 @@ void Scheduler::terminate_execution(Locker& locker, ExitState exit) {
     exit_state_ = exit;
   }
 
+#if CONFIG_WPA_DEBUG_PRINT
+  printf("[scheduler] terminating - reason=%d\n", exit_state_.reason);
+#endif
+
   for (SchedulerThread* thread : threads_) {
     Process* process = thread->interpreter()->process();
     if (process != null) {
       process->signal(Process::KILL);
     }
   }
 
+#if CONFIG_WPA_DEBUG_PRINT
+  printf("[scheduler] terminating - processes signalled\n");
+#endif
+
   OS::signal(has_processes_);
 }