shutdown: let's shutdown the same everywhere.

Also minor refactor in main.c

src/main.c

@@ -1,21 +1,24 @@
 /* Copyright 2018. Alastair Poole <netstar@gmail.com>
    See LICENSE file for details.
 */
-
 #include "process.h"
 #include "system.h"
 #include "ui.h"
 
 static void
-_win_del_cb(void *data EINA_UNUSED, Evas_Object *obj, void *event_info EINA_UNUSED)
+_win_del_cb(void *data, Evas_Object *obj EINA_UNUSED, void *event_info EINA_UNUSED)
 {
-   evas_object_del(obj);
+   Ui *ui;
-   ecore_main_loop_quit();
+
+   ui = data;
+
+   ui_shutdown(ui);
 }
 
 static Evas_Object *
 _win_add(void)
 {
+   Ui *ui;
    Evas_Object *win, *icon;
 
    elm_policy_set(ELM_POLICY_QUIT, ELM_POLICY_QUIT_LAST_WINDOW_CLOSED);
@@ -24,11 +27,13 @@ _win_add(void)
    icon = elm_icon_add(win);
    elm_icon_standard_set(icon, "evisum");
    elm_win_icon_object_set(win, icon);
-
    evas_object_resize(win, 768 * elm_config_scale_get(), 500 * elm_config_scale_get());
-   evas_object_smart_callback_add(win, "delete,request", _win_del_cb, NULL);
-
    elm_win_title_set(win, "System Information");
+   elm_win_center(win, EINA_TRUE, EINA_TRUE);
+   evas_object_show(win);
+
+   ui = ui_add(win);
+   evas_object_smart_callback_add(win, "delete,request", _win_del_cb, ui);
 
    return win;
 }
@@ -43,10 +48,6 @@ main(int argc, char **argv)
    elm_init(argc, argv);
 
    win = _win_add();
-   ui_add(win);
-
-   elm_win_center(win, EINA_TRUE, EINA_TRUE);
-   evas_object_show(win);
 
    ecore_main_loop_begin();
 

src/ui.c

@@ -21,6 +21,26 @@ static void _extra_view_update(Ui *ui, results_t *results);
 static void _cpu_view_update(Ui *ui, results_t *results);
 static void _memory_view_update(Ui *ui, results_t *results);
 
+void
+ui_shutdown(Ui *ui)
+{
+   evas_object_hide(ui->win);
+
+   if (ui->thread_system)
+     ecore_thread_cancel(ui->thread_system);
+
+   if (ui->thread_process)
+     ecore_thread_cancel(ui->thread_process);
+
+   if (ui->thread_system)
+     ecore_thread_wait(ui->thread_system, 1.0);
+
+   if (ui->thread_process)
+     ecore_thread_wait(ui->thread_process, 1.0);
+
+   ecore_main_loop_quit();
+}
+
 static void
 _system_stats_thread(void *data, Ecore_Thread *thread)
 {
@@ -387,6 +407,7 @@ _system_process_list(void *data, Ecore_Thread *thread)
           {
              if (ecore_thread_check(thread))
                return;
+
              usleep(500000);
           }
      }
@@ -559,15 +580,7 @@ _btn_quit_clicked_cb(void *data EINA_UNUSED, Evas_Object *obj EINA_UNUSED, void
 {
    Ui *ui = data;
 
-   evas_object_hide(ui->win);
+   ui_shutdown(ui);
-
-   ecore_thread_cancel(ui->thread_system);
-   ecore_thread_cancel(ui->thread_process);
-
-   ecore_thread_wait(ui->thread_system, 1.0);
-   ecore_thread_wait(ui->thread_process, 1.0);
-
-   ecore_main_loop_quit();
 }
 
 static void
@@ -1318,7 +1331,6 @@ _ui_system_view_add(Ui *ui)
    frame = elm_frame_add(box);
    evas_object_size_hint_weight_set(frame, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
    evas_object_size_hint_align_set(frame, EVAS_HINT_FILL, EVAS_HINT_FILL);
-   elm_object_text_set(frame, "System Overview");
    elm_object_style_set(frame, "pad_small");
    elm_box_pack_end(box, frame);
    evas_object_show(frame);
@@ -2021,7 +2033,7 @@ _ui_tabs_add(Evas_Object *parent, Ui *ui)
    button = elm_button_add(hbox);
    evas_object_size_hint_weight_set(button, 1.0, EVAS_HINT_EXPAND);
    evas_object_size_hint_align_set(button, EVAS_HINT_FILL, EVAS_HINT_FILL);
-   elm_object_text_set(button, "System Activity");
+   elm_object_text_set(button, "General");
    evas_object_show(button);
    elm_box_pack_end(hbox, button);
    evas_object_smart_callback_add(button, "clicked", _tab_system_activity_clicked_cb, ui);
@@ -2087,7 +2099,7 @@ _ui_tabs_add(Evas_Object *parent, Ui *ui)
    return table;
 }
 
-void
+Ui *
 ui_add(Evas_Object *parent)
 {
    Ui *ui;
@@ -2131,5 +2143,7 @@ ui_add(Evas_Object *parent)
 
    ui->thread_system = ecore_thread_feedback_run(_system_stats_thread, _system_stats_thread_feedback_cb, _thread_end_cb, _thread_error_cb, ui, EINA_FALSE);
    ui->thread_process = ecore_thread_feedback_run(_system_process_list, _system_process_list_feedback_cb, _thread_end_cb, _thread_error_cb, ui, EINA_FALSE);
+
+   return ui;
 }
 

src/ui.h

@@ -120,7 +120,11 @@ typedef struct Ui
 
 } Ui;
 
-void
+Ui *
 ui_add(Evas_Object *win);
 
+void
+ui_shutdown(Ui *ui);
+
+
 #endif