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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_Enterer
{
EINA_INLIST;
ECORE_MAGIC;
Ecore_Task_Cb func;
void *data;
int references;
Eina_Bool delete_me : 1;
};
GENERIC_ALLOC_SIZE_DECLARE(Ecore_Idle_Enterer);
static Ecore_Idle_Enterer *idle_enterers = NULL;
static Ecore_Idle_Enterer *idle_enterer_current = NULL;
static int idle_enterers_delete_me = 0;
static void *
_ecore_idle_enterer_del(Ecore_Idle_Enterer *idle_enterer);
/**
* @addtogroup Ecore_Idle_Group
*
* @{
*/
/**
* Add an idle enterer handler.
* @param func The function to call when entering an idle state.
* @param data The data to be passed to the @p func call
* @return A handle to the idle enterer callback if successful. Otherwise,
* NULL is returned.
* @note The function func will be called every time the main loop is entering
* idle state, as long as it returns 1 (or ECORE_CALLBACK_RENEW). A return of 0
* (or ECORE_CALLBACK_CANCEL) deletes the idle enterer.
*/
EAPI Ecore_Idle_Enterer *
ecore_idle_enterer_add(Ecore_Task_Cb func,
const void *data)
{
Ecore_Idle_Enterer *ie = NULL;
_ecore_lock();
if (!func) goto unlock;
ie = ecore_idle_enterer_calloc(1);
if (!ie) goto unlock;
ECORE_MAGIC_SET(ie, ECORE_MAGIC_IDLE_ENTERER);
ie->func = func;
ie->data = (void *)data;
idle_enterers = (Ecore_Idle_Enterer *)eina_inlist_append(EINA_INLIST_GET(idle_enterers), EINA_INLIST_GET(ie));
unlock:
_ecore_unlock();
return ie;
}
/**
* Add an idle enterer handler at the start of the list so it gets called earlier than others.
* @param func The function to call when entering an idle state.
* @param data The data to be passed to the @p func call
* @return A handle to the idle enterer callback if successful. Otherwise,
* NULL is returned.
* @note The function func will be called every time the main loop is entering
* idle state, as long as it returns 1 (or ECORE_CALLBACK_RENEW). A return of 0
* (or ECORE_CALLBACK_CANCEL) deletes the idle enterer.
*/
EAPI Ecore_Idle_Enterer *
ecore_idle_enterer_before_add(Ecore_Task_Cb func,
const void *data)
{
Ecore_Idle_Enterer *ie = NULL;
_ecore_lock();
if (!func) goto unlock;
ie = ecore_idle_enterer_calloc(1);
if (!ie) goto unlock;
ECORE_MAGIC_SET(ie, ECORE_MAGIC_IDLE_ENTERER);
ie->func = func;
ie->data = (void *)data;
idle_enterers = (Ecore_Idle_Enterer *)eina_inlist_prepend(EINA_INLIST_GET(idle_enterers), EINA_INLIST_GET(ie));
unlock:
_ecore_unlock();
return ie;
}
/**
* Delete an idle enterer callback.
* @param idle_enterer The idle enterer to delete
* @return The data pointer passed to the idler enterer callback on success.
* NULL otherwise.
*/
EAPI void *
ecore_idle_enterer_del(Ecore_Idle_Enterer *idle_enterer)
{
void *data;
if (!ECORE_MAGIC_CHECK(idle_enterer, ECORE_MAGIC_IDLE_ENTERER))
{
ECORE_MAGIC_FAIL(idle_enterer, ECORE_MAGIC_IDLE_ENTERER,
"ecore_idle_enterer_del");
return NULL;
}
_ecore_lock();
data = _ecore_idle_enterer_del(idle_enterer);
_ecore_unlock();
return data;
}
/**
* @}
*/
static void *
_ecore_idle_enterer_del(Ecore_Idle_Enterer *idle_enterer)
{
EINA_SAFETY_ON_TRUE_RETURN_VAL(idle_enterer->delete_me, NULL);
idle_enterer->delete_me = 1;
idle_enterers_delete_me = 1;
return idle_enterer->data;
}
void
_ecore_idle_enterer_shutdown(void)
{
Ecore_Idle_Enterer *ie;
while ((ie = idle_enterers))
{
idle_enterers = (Ecore_Idle_Enterer *)eina_inlist_remove(EINA_INLIST_GET(idle_enterers), EINA_INLIST_GET(idle_enterers));
ECORE_MAGIC_SET(ie, ECORE_MAGIC_NONE);
ecore_idle_enterer_mp_free(ie);
}
idle_enterers_delete_me = 0;
idle_enterer_current = NULL;
}
void
_ecore_idle_enterer_call(void)
{
if (!idle_enterer_current)
{
/* regular main loop, start from head */
idle_enterer_current = idle_enterers;
}
else
{
/* recursive main loop, continue from where we were */
idle_enterer_current =
(Ecore_Idle_Enterer *)EINA_INLIST_GET(idle_enterer_current)->next;
}
while (idle_enterer_current)
{
Ecore_Idle_Enterer *ie = (Ecore_Idle_Enterer *)idle_enterer_current;
if (!ie->delete_me)
{
ie->references++;
if (!_ecore_call_task_cb(ie->func, ie->data))
{
if (!ie->delete_me) _ecore_idle_enterer_del(ie);
}
ie->references--;
}
if (idle_enterer_current) /* may have changed in recursive main loops */
idle_enterer_current =
(Ecore_Idle_Enterer *)EINA_INLIST_GET(idle_enterer_current)->next;
}
if (idle_enterers_delete_me)
{
Ecore_Idle_Enterer *l;
int deleted_idler_enterers_in_use = 0;
for (l = idle_enterers; l; )
{
Ecore_Idle_Enterer *ie = l;
l = (Ecore_Idle_Enterer *)EINA_INLIST_GET(l)->next;
if (ie->delete_me)
{
if (ie->references)
{
deleted_idler_enterers_in_use++;
continue;
}
idle_enterers = (Ecore_Idle_Enterer *)eina_inlist_remove(EINA_INLIST_GET(idle_enterers), EINA_INLIST_GET(ie));
ECORE_MAGIC_SET(ie, ECORE_MAGIC_NONE);
ecore_idle_enterer_mp_free(ie);
}
}
if (!deleted_idler_enterers_in_use)
idle_enterers_delete_me = 0;
}
}
int
_ecore_idle_enterer_exist(void)
{
if (idle_enterers) return 1;
return 0;
}
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