Hey there,
I put together an example that reveils unexpected elm behavior here on
my T60 (Intel T2500).
I'm mentioning my cpu, because - according to ecore_thread's docs -
the number of maximum threads is limited to 2n | n = |processors|.
For some reason though the default number of threads equals my # of cpus.
So anybody who has a more recent machine please extend the number of
events emited/threads generated to the number of your maximum threads
- 1 to make elm_fileselector show nothing.
I hope I'm doing something wrong here.
--
Leif
#include <Ecore.h>
#include <Elementary.h>
void _blocking1(void *data, Ecore_Thread *th)
{
ecore_thread_reschedule(th);
}
void create_thread1(void)
{
ecore_thread_run(_blocking1, NULL, NULL, NULL);
}
Eina_Bool _event_1(void *data, int type, void *event)
{
create_thread1();
return ECORE_CALLBACK_RENEW;
}
void _blocking2(void *data, Ecore_Thread *th)
{
ecore_thread_reschedule(th);
}
void create_thread2(void)
{
ecore_thread_run(_blocking2, NULL, NULL, NULL);
}
Eina_Bool _event_2(void *data, int type, void *event)
{
create_thread2();
return ECORE_CALLBACK_RENEW;
}
void _blocking3(void *data, Ecore_Thread *th)
{
ecore_thread_reschedule(th);
}
void create_thread3(void)
{
ecore_thread_run(_blocking3, NULL, NULL, NULL);
}
Eina_Bool _event_3(void *data, int type, void *event)
{
create_thread3();
return ECORE_CALLBACK_RENEW;
}
static void /* hook on the sole smart callback */
_file_chosen(void *data, Evas_Object *obj, void *event_info)
{
const char *file = event_info;
if (file)
printf("File chosen: %s\n", file);
else
printf("File selection canceled.\n");
}
EAPI_MAIN int elm_main(int argc, char **argv)
{
Evas_Object *win, *bg, *btn;
win = elm_win_add(NULL, "layout", ELM_WIN_BASIC);
elm_win_title_set(win, "Layout");
elm_policy_set(ELM_POLICY_QUIT, ELM_POLICY_QUIT_LAST_WINDOW_CLOSED);
elm_win_autodel_set(win, EINA_TRUE);
bg = elm_bg_add(win);
elm_bg_color_set(bg, 255, 255, 255);
evas_object_size_hint_weight_set(bg, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
elm_win_resize_object_add(win, bg);
evas_object_show(bg);
evas_object_size_hint_min_set(bg, 160, 160);
evas_object_size_hint_max_set(bg, 640, 640);
btn = elm_fileselector_button_add(bg);
elm_object_text_set(btn, "Select a file");
evas_object_smart_callback_add(btn, "file,chosen", _file_chosen, NULL);
evas_object_resize(btn, 100, 50);
evas_object_size_hint_weight_set(bg, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
evas_object_size_hint_align_set(bg, 0.5, 0.5);
evas_object_show(btn);
evas_object_resize(win, 320, 320);
evas_object_show(win);
//add event handlers
ecore_event_handler_add(1, _event_1, NULL);
ecore_event_handler_add(2, _event_2, NULL);
ecore_event_handler_add(3, _event_3, NULL);
//one extra thread: no problem
ecore_event_add(1, NULL, NULL, NULL);
//This second event/thread will lead no an empty/buggy fileselector
ecore_event_add(2, NULL, NULL, NULL);
//This third event/thread will lead to no UI at all/crashing app.
ecore_event_add(3, NULL, NULL, NULL);
elm_run();
elm_shutdown();
return 0;
}
ELM_MAIN()
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