315 lines
9.1 KiB
C
315 lines
9.1 KiB
C
#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include <stdlib.h>
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#include <Eo.h>
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#include "Ecore.h"
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#include "ecore_private.h"
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#define MY_CLASS ECORE_IDLE_ENTERER_CLASS
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#define MY_CLASS_NAME "ecore_idle_enterer"
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EAPI Eo_Op ECORE_IDLE_ENTERER_BASE_ID = EO_NOOP;
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struct _Ecore_Idle_Enterer_Private_Data
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{
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EINA_INLIST;
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Ecore_Idle_Enterer *obj;
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Ecore_Task_Cb func;
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void *data;
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int references;
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Eina_Bool delete_me : 1;
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};
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typedef struct _Ecore_Idle_Enterer_Private_Data Ecore_Idle_Enterer_Private_Data;
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static Ecore_Idle_Enterer_Private_Data *idle_enterers = NULL;
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static Ecore_Idle_Enterer_Private_Data *idle_enterer_current = NULL;
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static int idle_enterers_delete_me = 0;
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static void *
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_ecore_idle_enterer_del(Ecore_Idle_Enterer *idle_enterer);
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/**
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* @addtogroup Ecore_Idle_Group
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*
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* @{
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*/
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static Eina_Bool
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_ecore_idle_enterer_add(Ecore_Idle_Enterer *obj,
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Ecore_Idle_Enterer_Private_Data *ie,
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Ecore_Task_Cb func,
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const void *data)
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{
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if (EINA_UNLIKELY(!eina_main_loop_is()))
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{
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eo_error_set(obj);
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EINA_MAIN_LOOP_CHECK_RETURN_VAL(EINA_FALSE);
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}
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ie->obj = obj;
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eo_do_super(obj, eo_constructor());
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eo_manual_free_set(obj, EINA_TRUE);
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if (!func)
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{
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eo_error_set(obj);
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ERR("callback function must be set up for an object of class: '%s'", MY_CLASS_NAME);
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return EINA_FALSE;
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}
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ie->func = func;
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ie->data = (void *)data;
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return EINA_TRUE;
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}
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/**
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* Add an idle enterer handler.
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* @param func The function to call when entering an idle state.
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* @param data The data to be passed to the @p func call
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* @return A handle to the idle enterer callback if successful. Otherwise,
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* NULL is returned.
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* @note The function func will be called every time the main loop is entering
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* idle state, as long as it returns 1 (or ECORE_CALLBACK_RENEW). A return of 0
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* (or ECORE_CALLBACK_CANCEL) deletes the idle enterer.
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*/
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EAPI Ecore_Idle_Enterer *
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ecore_idle_enterer_add(Ecore_Task_Cb func,
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const void *data)
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{
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Ecore_Idle_Enterer *ie = NULL;
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ie = eo_add_custom(MY_CLASS, _ecore_parent, ecore_idle_enterer_after_constructor(func, data));
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eo_unref(ie);
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return ie;
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}
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static void
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_idle_enterer_after_constructor(Eo *obj, void *_pd, va_list *list)
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{
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Ecore_Task_Cb func = va_arg(*list, Ecore_Task_Cb);
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const void *data = va_arg(*list, const void *);
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_ecore_lock();
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Ecore_Idle_Enterer_Private_Data *ie = _pd;
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if (!_ecore_idle_enterer_add(obj, ie, func, data)) goto unlock;
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idle_enterers = (Ecore_Idle_Enterer_Private_Data *)eina_inlist_append(EINA_INLIST_GET(idle_enterers), EINA_INLIST_GET(ie));
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unlock:
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_ecore_unlock();
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}
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/**
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* Add an idle enterer handler at the start of the list so it gets called earlier than others.
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* @param func The function to call when entering an idle state.
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* @param data The data to be passed to the @p func call
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* @return A handle to the idle enterer callback if successful. Otherwise,
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* NULL is returned.
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* @note The function func will be called every time the main loop is entering
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* idle state, as long as it returns 1 (or ECORE_CALLBACK_RENEW). A return of 0
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* (or ECORE_CALLBACK_CANCEL) deletes the idle enterer.
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*/
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EAPI Ecore_Idle_Enterer *
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ecore_idle_enterer_before_add(Ecore_Task_Cb func,
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const void *data)
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{
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Ecore_Idle_Enterer *ie = NULL;
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ie = eo_add_custom(MY_CLASS, _ecore_parent, ecore_idle_enterer_before_constructor(func, data));
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eo_unref(ie);
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return ie;
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}
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static void
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_idle_enterer_before_constructor(Eo *obj, void *_pd, va_list *list)
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{
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Ecore_Task_Cb func = va_arg(*list, Ecore_Task_Cb);
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const void *data = va_arg(*list, const void *);
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_ecore_lock();
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Ecore_Idle_Enterer_Private_Data *ie = _pd;
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if (!_ecore_idle_enterer_add(obj, ie, func, data)) goto unlock;
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idle_enterers = (Ecore_Idle_Enterer_Private_Data *)eina_inlist_prepend(EINA_INLIST_GET(idle_enterers), EINA_INLIST_GET(ie));
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unlock:
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_ecore_unlock();
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}
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static void
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_constructor(Eo *obj, void *_pd EINA_UNUSED, va_list *list EINA_UNUSED)
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{
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eo_error_set(obj);
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ERR("only custom constructor can be used with '%s' class", MY_CLASS_NAME);
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}
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/**
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* Delete an idle enterer callback.
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* @param idle_enterer The idle enterer to delete
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* @return The data pointer passed to the idler enterer callback on success.
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* NULL otherwise.
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*/
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EAPI void *
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ecore_idle_enterer_del(Ecore_Idle_Enterer *idle_enterer)
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{
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void *data = NULL;
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EINA_MAIN_LOOP_CHECK_RETURN_VAL(NULL);
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_ecore_lock();
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data = _ecore_idle_enterer_del(idle_enterer);
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_ecore_unlock();
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return data;
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}
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/**
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* @}
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*/
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static void *
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_ecore_idle_enterer_del(Ecore_Idle_Enterer *obj)
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{
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Ecore_Idle_Enterer_Private_Data *idle_enterer = eo_data_get(obj, MY_CLASS);
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if (!idle_enterer) return NULL;
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EINA_SAFETY_ON_TRUE_RETURN_VAL(idle_enterer->delete_me, NULL);
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idle_enterer->delete_me = 1;
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idle_enterers_delete_me = 1;
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return idle_enterer->data;
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}
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static void
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_destructor(Eo *obj, void *_pd, va_list *list EINA_UNUSED)
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{
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Ecore_Idle_Enterer_Private_Data *idle_enterer = _pd;
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idle_enterer->delete_me = 1;
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idle_enterers_delete_me = 1;
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eo_do_super(obj, eo_destructor());
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}
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void
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_ecore_idle_enterer_shutdown(void)
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{
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Ecore_Idle_Enterer_Private_Data *ie;
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while ((ie = idle_enterers))
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{
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idle_enterers = (Ecore_Idle_Enterer_Private_Data *)eina_inlist_remove(EINA_INLIST_GET(idle_enterers), EINA_INLIST_GET(idle_enterers));
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eo_parent_set(ie->obj, NULL);
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if (eo_destructed_is(ie->obj))
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eo_manual_free(ie->obj);
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else
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eo_manual_free_set(ie->obj, EINA_FALSE);
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}
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idle_enterers_delete_me = 0;
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idle_enterer_current = NULL;
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}
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void
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_ecore_idle_enterer_call(void)
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{
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if (!idle_enterer_current)
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{
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/* regular main loop, start from head */
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idle_enterer_current = idle_enterers;
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}
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else
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{
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/* recursive main loop, continue from where we were */
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idle_enterer_current =
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(Ecore_Idle_Enterer_Private_Data *)EINA_INLIST_GET(idle_enterer_current)->next;
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}
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while (idle_enterer_current)
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{
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Ecore_Idle_Enterer_Private_Data *ie = (Ecore_Idle_Enterer_Private_Data *)idle_enterer_current;
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if (!ie->delete_me)
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{
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ie->references++;
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if (!_ecore_call_task_cb(ie->func, ie->data))
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{
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if (!ie->delete_me) _ecore_idle_enterer_del(ie->obj);
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}
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ie->references--;
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}
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if (idle_enterer_current) /* may have changed in recursive main loops */
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idle_enterer_current =
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(Ecore_Idle_Enterer_Private_Data *)EINA_INLIST_GET(idle_enterer_current)->next;
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}
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if (idle_enterers_delete_me)
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{
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Ecore_Idle_Enterer_Private_Data *l;
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int deleted_idler_enterers_in_use = 0;
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for (l = idle_enterers; l; )
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{
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Ecore_Idle_Enterer_Private_Data *ie = l;
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l = (Ecore_Idle_Enterer_Private_Data *)EINA_INLIST_GET(l)->next;
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if (ie->delete_me)
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{
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if (ie->references)
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{
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deleted_idler_enterers_in_use++;
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continue;
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}
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idle_enterers = (Ecore_Idle_Enterer_Private_Data *)eina_inlist_remove(EINA_INLIST_GET(idle_enterers), EINA_INLIST_GET(ie));
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eo_parent_set(ie->obj, NULL);
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if (eo_destructed_is(ie->obj))
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eo_manual_free(ie->obj);
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else
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eo_manual_free_set(ie->obj, EINA_FALSE);
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}
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}
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if (!deleted_idler_enterers_in_use)
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idle_enterers_delete_me = 0;
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}
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}
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int
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_ecore_idle_enterer_exist(void)
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{
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if (idle_enterers) return 1;
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return 0;
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}
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static void
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_class_constructor(Eo_Class *klass)
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{
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const Eo_Op_Func_Description func_desc[] = {
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EO_OP_FUNC(EO_BASE_ID(EO_BASE_SUB_ID_CONSTRUCTOR), _constructor),
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EO_OP_FUNC(EO_BASE_ID(EO_BASE_SUB_ID_DESTRUCTOR), _destructor),
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EO_OP_FUNC(ECORE_IDLE_ENTERER_ID(ECORE_IDLE_ENTERER_SUB_ID_AFTER_CONSTRUCTOR), _idle_enterer_after_constructor),
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EO_OP_FUNC(ECORE_IDLE_ENTERER_ID(ECORE_IDLE_ENTERER_SUB_ID_BEFORE_CONSTRUCTOR), _idle_enterer_before_constructor),
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EO_OP_FUNC_SENTINEL
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};
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eo_class_funcs_set(klass, func_desc);
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}
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static const Eo_Op_Description op_desc[] = {
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EO_OP_DESCRIPTION(ECORE_IDLE_ENTERER_SUB_ID_AFTER_CONSTRUCTOR, "Add an idle enterer handler."),
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EO_OP_DESCRIPTION(ECORE_IDLE_ENTERER_SUB_ID_BEFORE_CONSTRUCTOR, "Add an idle enterer handler at the start of the list so it gets called earlier than others."),
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EO_OP_DESCRIPTION_SENTINEL
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};
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static const Eo_Class_Description class_desc = {
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EO_VERSION,
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MY_CLASS_NAME,
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EO_CLASS_TYPE_REGULAR,
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EO_CLASS_DESCRIPTION_OPS(&ECORE_IDLE_ENTERER_BASE_ID, op_desc, ECORE_IDLE_ENTERER_SUB_ID_LAST),
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NULL,
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sizeof(Ecore_Idle_Enterer_Private_Data),
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_class_constructor,
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NULL
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};
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EO_DEFINE_CLASS(ecore_idle_enterer_class_get, &class_desc, EO_BASE_CLASS, NULL)
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