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#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <stdlib.h>
#include "Ecore.h"
#include "ecore_private.h"
struct _Ecore_Idle_Exiter
{
EINA_INLIST;
ECORE_MAGIC;
Ecore_Task_Cb func;
void *data;
int references;
Eina_Bool delete_me : 1;
};
GENERIC_ALLOC_SIZE_DECLARE(Ecore_Idle_Exiter);
static Ecore_Idle_Exiter *idle_exiters = NULL;
static Ecore_Idle_Exiter *idle_exiter_current = NULL;
static int idle_exiters_delete_me = 0;
static void *
_ecore_idle_exiter_del(Ecore_Idle_Exiter *idle_exiter);
/**
* @addtogroup Ecore_Idle_Group
*
* @{
*/
/**
* Add an idle exiter handler.
* @param func The function to call when exiting an idle state.
* @param data The data to be passed to the @p func call
* @return A handle to the idle exiter callback on success. NULL otherwise.
* @note The function func will be called every time the main loop is exiting
* idle state, as long as it returns 1 (or ECORE_CALLBACK_RENEW). A return of 0
* (or ECORE_CALLBACK_CANCEL) deletes the idle exiter.
*/
EAPI Ecore_Idle_Exiter *
ecore_idle_exiter_add(Ecore_Task_Cb func,
const void *data)
{
Ecore_Idle_Exiter *ie = NULL;
_ecore_lock();
if (!func) goto unlock;
ie = ecore_idle_exiter_calloc(1);
if (!ie) goto unlock;
ECORE_MAGIC_SET(ie, ECORE_MAGIC_IDLE_EXITER);
ie->func = func;
ie->data = (void *)data;
idle_exiters = (Ecore_Idle_Exiter *)eina_inlist_append(EINA_INLIST_GET(idle_exiters), EINA_INLIST_GET(ie));
unlock:
_ecore_unlock();
return ie;
}
/**
* Delete an idle exiter handler from the list to be run on exiting idle state.
* @param idle_exiter The idle exiter to delete
* @return The data pointer that was being being passed to the handler if
* successful. NULL otherwise.
*/
EAPI void *
ecore_idle_exiter_del(Ecore_Idle_Exiter *idle_exiter)
{
void *data;
if (!ECORE_MAGIC_CHECK(idle_exiter, ECORE_MAGIC_IDLE_EXITER))
{
ECORE_MAGIC_FAIL(idle_exiter, ECORE_MAGIC_IDLE_EXITER,
"ecore_idle_exiter_del");
return NULL;
}
_ecore_lock();
data = _ecore_idle_exiter_del(idle_exiter);
_ecore_unlock();
return data;
}
/**
* @}
*/
static void *
_ecore_idle_exiter_del(Ecore_Idle_Exiter *idle_exiter)
{
EINA_SAFETY_ON_TRUE_RETURN_VAL(idle_exiter->delete_me, NULL);
idle_exiter->delete_me = 1;
idle_exiters_delete_me = 1;
return idle_exiter->data;
}
void
_ecore_idle_exiter_shutdown(void)
{
Ecore_Idle_Exiter *ie;
while ((ie = idle_exiters))
{
idle_exiters = (Ecore_Idle_Exiter *)eina_inlist_remove(EINA_INLIST_GET(idle_exiters), EINA_INLIST_GET(idle_exiters));
ECORE_MAGIC_SET(ie, ECORE_MAGIC_NONE);
ecore_idle_exiter_mp_free(ie);
}
idle_exiters_delete_me = 0;
idle_exiter_current = NULL;
}
void
_ecore_idle_exiter_call(void)
{
if (!idle_exiter_current)
{
/* regular main loop, start from head */
idle_exiter_current = idle_exiters;
}
else
{
/* recursive main loop, continue from where we were */
idle_exiter_current =
(Ecore_Idle_Exiter *)EINA_INLIST_GET(idle_exiter_current)->next;
}
while (idle_exiter_current)
{
Ecore_Idle_Exiter *ie = (Ecore_Idle_Exiter *)idle_exiter_current;
if (!ie->delete_me)
{
ie->references++;
if (!_ecore_call_task_cb(ie->func, ie->data))
{
if (!ie->delete_me) _ecore_idle_exiter_del(ie);
}
ie->references--;
}
if (idle_exiter_current) /* may have changed in recursive main loops */
idle_exiter_current =
(Ecore_Idle_Exiter *)EINA_INLIST_GET(idle_exiter_current)->next;
}
if (idle_exiters_delete_me)
{
Ecore_Idle_Exiter *l;
int deleted_idler_exiters_in_use = 0;
for (l = idle_exiters; l; )
{
Ecore_Idle_Exiter *ie = l;
l = (Ecore_Idle_Exiter *)EINA_INLIST_GET(l)->next;
if (ie->delete_me)
{
if (ie->references)
{
deleted_idler_exiters_in_use++;
continue;
}
idle_exiters = (Ecore_Idle_Exiter *)eina_inlist_remove(EINA_INLIST_GET(idle_exiters), EINA_INLIST_GET(ie));
ECORE_MAGIC_SET(ie, ECORE_MAGIC_NONE);
ecore_idle_exiter_mp_free(ie);
}
}
if (!deleted_idler_exiters_in_use)
idle_exiters_delete_me = 0;
}
}
int
_ecore_idle_exiter_exist(void)
{
if (idle_exiters) return 1;
return 0;
}
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