130 lines
3.3 KiB
C
130 lines
3.3 KiB
C
//Compile with:
|
|
//gcc -o efl_thread_4 efl_thread_4.c -g `pkg-config --cflags --libs elementary`
|
|
#include <Elementary.h>
|
|
#include <pthread.h>
|
|
|
|
static Evas_Object *win = NULL;
|
|
static Evas_Object *rect = NULL;
|
|
|
|
struct info
|
|
{
|
|
double x, y;
|
|
};
|
|
|
|
static void my_thread_mainloop_code(void *data);
|
|
|
|
static pthread_t thread_id;
|
|
static pthread_mutex_t th_lock;
|
|
static int th_exit = 0;
|
|
|
|
// BEGIN - code running in my custom pthread instance
|
|
//
|
|
static void *
|
|
my_thread_run(void *arg EINA_UNUSED)
|
|
{
|
|
double t = 0.0;
|
|
|
|
// inside the pthread function lets loop forever incrementing a time point
|
|
for (;;)
|
|
{
|
|
struct info *inf = malloc(sizeof(struct info));
|
|
int do_exit;
|
|
|
|
if (inf)
|
|
{
|
|
inf->x = 200 + (200 * sin(t));
|
|
inf->y = 200 + (200 * cos(t));
|
|
// now call a function in the mainloop and pass it our allocated
|
|
// data that it will free when it gets it
|
|
ecore_main_loop_thread_safe_call_async
|
|
(my_thread_mainloop_code, inf);
|
|
}
|
|
// and sleep and loop
|
|
usleep(1000);
|
|
t += 0.02;
|
|
// in case someone has asked us to cancel - then cancel this loop
|
|
// co-operatively (cancelling is co-operative)
|
|
pthread_mutex_lock(&th_lock);
|
|
do_exit = th_exit;
|
|
pthread_mutex_unlock(&th_lock);
|
|
if (do_exit) break;
|
|
}
|
|
return NULL;
|
|
}
|
|
//
|
|
// END - code running in my custom pthread instance
|
|
|
|
static void
|
|
my_thread_new(void)
|
|
{
|
|
pthread_attr_t attr;
|
|
|
|
pthread_mutex_init(&th_lock, NULL);
|
|
if (pthread_attr_init(&attr) != 0)
|
|
perror("pthread_attr_init");
|
|
if (pthread_create(&thread_id, &attr, my_thread_run, NULL) != 0)
|
|
perror("pthread_create");
|
|
}
|
|
|
|
static void
|
|
my_thread_mainloop_code(void *data)
|
|
{
|
|
struct info *inf = data;
|
|
evas_object_move(rect, inf->x - 50, inf->y - 50);
|
|
free(inf);
|
|
}
|
|
|
|
// just test cancelling the thread
|
|
static void
|
|
down(void *data EINA_UNUSED, Evas *e EINA_UNUSED, Evas_Object *obj EINA_UNUSED, void *event_info EINA_UNUSED)
|
|
{
|
|
pthread_mutex_lock(&th_lock);
|
|
th_exit = 1;
|
|
pthread_mutex_unlock(&th_lock);
|
|
}
|
|
|
|
// on window delete - cancel thread then delete window and exit mainloop
|
|
static void
|
|
del(void *data EINA_UNUSED, Evas_Object *obj, void *event_info EINA_UNUSED)
|
|
{
|
|
pthread_mutex_lock(&th_lock);
|
|
th_exit = 1;
|
|
pthread_mutex_unlock(&th_lock);
|
|
evas_object_del(obj);
|
|
elm_exit();
|
|
}
|
|
|
|
EAPI_MAIN int
|
|
elm_main(int argc EINA_UNUSED, char **argv EINA_UNUSED)
|
|
{
|
|
Evas_Object *o;
|
|
|
|
elm_policy_set(ELM_POLICY_QUIT, ELM_POLICY_QUIT_LAST_WINDOW_CLOSED);
|
|
|
|
win = elm_win_util_standard_add("efl-thread-4", "EFL Thread 4");
|
|
evas_object_smart_callback_add(win, "delete,request", del, NULL);
|
|
|
|
o = evas_object_rectangle_add(evas_object_evas_get(win));
|
|
evas_object_color_set(o, 50, 80, 180, 255);
|
|
evas_object_resize(o, 100, 100);
|
|
evas_object_show(o);
|
|
// new in the examples - we have a mouse down on the blue box cancel
|
|
// the thread
|
|
evas_object_event_callback_add(o, EVAS_CALLBACK_MOUSE_DOWN, down, NULL);
|
|
rect = o;
|
|
|
|
// create custom thread to do some "work on the side"
|
|
my_thread_new();
|
|
|
|
evas_object_resize(win, 400, 400);
|
|
evas_object_show(win);
|
|
|
|
elm_run();
|
|
pthread_mutex_lock(&th_lock);
|
|
th_exit = 1;
|
|
pthread_mutex_unlock(&th_lock);
|
|
|
|
return 0;
|
|
}
|
|
ELM_MAIN()
|