4 #include "eo_private.h"
8 typedef size_t Eo_Class_Id;
10 /* Used inside the class_get functions of classes, see #EO_DEFINE_CLASS */
11 EAPI Eina_Lock _eo_class_creation_lock;
14 static Eo_Class **_eo_classes;
15 static Eo_Class_Id _eo_classes_last_id;
16 static Eina_Bool _eo_init_count = 0;
18 static void _eo_constructor(Eo *obj, const Eo_Class *klass);
19 static void _eo_destructor(Eo *obj, const Eo_Class *klass);
20 static inline Eina_Bool _eo_error_get(const Eo *obj);
21 static inline void _eo_error_unset(Eo *obj);
22 static inline void *_eo_data_get(const Eo *obj, const Eo_Class *klass);
23 static inline Eo *_eo_ref(Eo *obj);
24 static inline void _eo_unref(Eo *obj);
29 const Eo_Class **kls_itr;
35 const Eo_Class *klass;
41 Eina_List *composite_objects;
46 Eina_Bool construct_error:1;
50 /* Dich search, split to 0xff 0xff 0xffff */
52 #define DICH_CHAIN1_MASK (0xffff)
53 #define DICH_CHAIN_LAST_MASK (0xffff)
54 #define DICH_CHAIN1(x) (((x) >> 16) & DICH_CHAIN1_MASK)
55 #define DICH_CHAIN_LAST(x) ((x) & DICH_CHAIN_LAST_MASK)
57 #define OP_CLASS_OFFSET 16
58 #define OP_CLASS_OFFSET_GET(x) (((x) >> OP_CLASS_OFFSET) & 0xffff)
59 #define OP_CLASS_GET(op) ({ \
60 Eo_Class_Id tmp = OP_CLASS_OFFSET_GET(op); \
63 #define OP_SUB_ID_GET(op) ((op) & 0xffff)
65 #define ID_CLASS_GET(id) ({ \
66 (Eo_Class *) ((id <= _eo_classes_last_id) && (id > 0)) ? \
67 (_eo_classes[id - 1]) : NULL; \
70 #define EO_ALIGN_SIZE(size) \
71 ((size) + (sizeof(void *) - ((size) % sizeof(void *))))
73 /* Structure of Eo_Op is:
78 typedef struct _Dich_Chain1 Dich_Chain1;
94 const Eo_Class *klass;
99 const Eo_Class *klass;
101 } Eo_Extension_Data_Offset;
106 Eo_Class_Id class_id;
107 const Eo_Class *parent;
108 const Eo_Class_Description *desc;
109 Dich_Chain1 *chain; /**< The size is class_id */
110 Eina_Inlist *extensions;
112 Eo_Extension_Data_Offset *extn_data_off;
113 size_t extn_data_size;
115 const Eo_Class **mro;
117 size_t data_offset; /* < Offset of the data within object data. */
119 Eina_Bool constructed : 1;
123 _dich_chain_alloc(Dich_Chain1 *chain1, size_t num_ops)
127 chain1->funcs = calloc(num_ops, sizeof(*(chain1->funcs)));
132 _dich_copy_all(Eo_Class *dst, const Eo_Class *src)
134 if (!src->chain) return;
138 dst->chain = calloc(dst->class_id, sizeof(*dst->chain));
142 const Dich_Chain1 *sc1 = src->chain;
143 Dich_Chain1 *dc1 = dst->chain;
144 for (i = 0 ; i < src->class_id ; i++, sc1++, dc1++)
149 const Eo_Class *op_klass = ID_CLASS_GET(i + 1);
150 /* Can be NULL because of future static classes. */
154 size_t num_ops = op_klass->desc->ops.count;
155 _dich_chain_alloc(dc1, num_ops);
157 const op_type_funcs *sf = sc1->funcs;
158 op_type_funcs *df = dc1->funcs;
159 for (j = 0 ; j < num_ops ; j++, df++, sf++)
163 memcpy(df, sf, sizeof(*df));
170 static inline const op_type_funcs *
171 _dich_func_get(const Eo_Class *klass, Eo_Op op)
173 if (!klass->chain) return NULL;
175 size_t idx1 = DICH_CHAIN1(op) - 1;
176 if (idx1 >= klass->class_id) return NULL;
177 const Dich_Chain1 *chain1 = &klass->chain[idx1];
178 if (!chain1->funcs) return NULL;
180 size_t idxl = DICH_CHAIN_LAST(op);
181 /* num_ops is calculated from the class. */
182 const Eo_Class *op_klass = ID_CLASS_GET(idx1 + 1);
183 if (!op_klass || (idxl >= op_klass->desc->ops.count))
186 return &chain1->funcs[idxl];
190 _dich_func_set(Eo_Class *klass, Eo_Op op, eo_op_func_type func)
192 const Eo_Class *op_klass = OP_CLASS_GET(op);
195 /* Verify op is valid. */
198 /* num_ops is calculated from the class. */
199 num_ops = op_klass->desc->ops.count;
200 if (DICH_CHAIN_LAST(op) >= num_ops)
202 ERR("OP %x is too big for the domain '%s', expected value < %x.",
203 op, op_klass->desc->name, op_klass->desc->ops.count);
209 ERR("OP %x is from an illegal class.", op);
215 klass->chain = calloc(klass->class_id, sizeof(*klass->chain));
218 size_t idx1 = DICH_CHAIN1(op) - 1;
219 Dich_Chain1 *chain1 = &klass->chain[idx1];
220 _dich_chain_alloc(chain1, num_ops);
221 chain1->funcs[DICH_CHAIN_LAST(op)].func = func;
222 chain1->funcs[DICH_CHAIN_LAST(op)].src = klass;
226 _dich_func_clean_all(Eo_Class *klass)
229 Dich_Chain1 *chain1 = klass->chain;
234 for (i = 0 ; i < klass->class_id ; i++, chain1++)
245 static const Eo_Op_Description noop_desc =
246 EO_OP_DESCRIPTION(EO_NOOP, "", "No operation.");
248 static const Eo_Op_Description *
249 _eo_op_id_desc_get(Eo_Op op)
251 const Eo_Class *klass = OP_CLASS_GET(op);
252 Eo_Op sub_id = OP_SUB_ID_GET(op);
257 if (klass && (sub_id < klass->desc->ops.count))
258 return klass->desc->ops.descs + sub_id;
264 _eo_op_id_name_get(Eo_Op op)
266 const Eo_Op_Description *desc = _eo_op_id_desc_get(op);
267 return (desc) ? desc->name : NULL;
271 _eo_kls_itr_init(Eo *obj, Eo_Op op, Eo_Kls_Itr *prev_state)
273 prev_state->op = obj->mro_itr.op;
274 prev_state->kls_itr = obj->mro_itr.kls_itr;
276 /* If we are in a constructor/destructor or we changed an op - init. */
277 if ((op == EO_NOOP) || (obj->mro_itr.op != op))
279 obj->mro_itr.op = op;
280 obj->mro_itr.kls_itr = obj->klass->mro;
285 _eo_kls_itr_end(Eo *obj, Eo_Kls_Itr *prev_state)
287 if (obj->mro_itr.op != prev_state->op)
289 obj->mro_itr.op = prev_state->op;
290 obj->mro_itr.kls_itr = prev_state->kls_itr;
294 static inline const Eo_Class *
295 _eo_kls_itr_get(Eo *obj)
297 return (obj->mro_itr.kls_itr) ? *(obj->mro_itr.kls_itr) : NULL;
300 static inline const Eo_Class *
301 _eo_kls_itr_next(Eo *obj, Eo_Op op)
303 if (obj->mro_itr.op != op)
305 Eo_Op node_op = obj->mro_itr.op;
306 ERR("Called with op %d ('%s') while expecting: %d ('%s'). This probaly means you called eo_*_super functions from a wrong place.",
307 op, _eo_op_id_name_get(op),
308 node_op, _eo_op_id_name_get(node_op));
312 const Eo_Class **kls_itr = obj->mro_itr.kls_itr;
317 const op_type_funcs *fsrc = _dich_func_get(*kls_itr, op);
319 while (*kls_itr && (*(kls_itr++) != fsrc->src))
327 obj->mro_itr.kls_itr = kls_itr;
336 static inline Eina_Bool
337 _eo_kls_itr_reached_end(const Eo *obj)
339 const Eo_Class **kls_itr = obj->mro_itr.kls_itr;
340 return !(*kls_itr && *(kls_itr + 1));
344 _eo_op_internal(Eo *obj, Eina_Bool constant, Eo_Op op, va_list *p_list)
346 const Eo_Class *klass;
347 Eina_Bool ret = EINA_FALSE;
349 const Eo_Op_Description *op_desc = _eo_op_id_desc_get(op);
352 ((constant == EINA_TRUE) && (op_desc->constant == EINA_FALSE)))
354 ERR("Tried calling non-const or non-existant op '%s' (%d) from a const (query) function.", (op_desc) ? op_desc->name : NULL, op);
358 Eo_Kls_Itr prev_state;
359 _eo_kls_itr_init(obj, op, &prev_state);
360 klass = _eo_kls_itr_get(obj);
363 const op_type_funcs *func = _dich_func_get(klass, op);
365 if (func && func->func)
367 func->func(obj, _eo_data_get(obj, func->src), p_list);
373 /* Try composite objects */
377 EINA_LIST_FOREACH(obj->composite_objects, itr, emb_obj)
379 if (_eo_op_internal(emb_obj, constant, op, p_list))
388 _eo_kls_itr_end(obj, &prev_state);
393 eo_do_internal(Eo *obj, Eina_Bool constant, ...)
395 Eina_Bool ret = EINA_TRUE;
399 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, EINA_FALSE);
403 va_start(p_list, constant);
405 op = va_arg(p_list, Eo_Op);
408 if (!_eo_op_internal(obj, constant, op, &p_list))
410 const Eo_Class *op_klass = OP_CLASS_GET(op);
411 const char *_dom_name = (op_klass) ? op_klass->desc->name : NULL;
412 ERR("Can't find func for op %x ('%s' of domain '%s') for class '%s'. Aborting.",
413 op, _eo_op_id_name_get(op), _dom_name,
414 obj->klass->desc->name);
418 op = va_arg(p_list, Eo_Op);
428 eo_do_super_internal(Eo *obj, Eina_Bool constant, Eo_Op op, ...)
430 const Eo_Class *obj_klass;
431 Eina_Bool ret = EINA_TRUE;
433 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, EINA_FALSE);
435 /* Advance the kls itr. */
436 obj_klass = _eo_kls_itr_next(obj, op);
438 if (obj->mro_itr.op != op)
441 va_start(p_list, op);
442 if (!_eo_op_internal(obj, constant, op, &p_list))
444 const Eo_Class *op_klass = OP_CLASS_GET(op);
445 const char *_dom_name = (op_klass) ? op_klass->desc->name : NULL;
446 ERR("Can't find func for op %x ('%s' of domain '%s') for class '%s'. Aborting.",
447 op, _eo_op_id_name_get(op), _dom_name,
448 (obj_klass) ? obj_klass->desc->name : NULL);
456 EAPI const Eo_Class *
457 eo_class_get(const Eo *obj)
459 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, EINA_FALSE);
465 eo_class_name_get(const Eo_Class *klass)
467 EO_MAGIC_RETURN_VAL(klass, EO_CLASS_EINA_MAGIC, NULL);
469 return klass->desc->name;
473 _eo_class_base_op_init(Eo_Class *klass)
475 const Eo_Class_Description *desc = klass->desc;
476 if (!desc || !desc->ops.base_op_id)
479 /* FIXME: Depends on values defined above! */
480 *(desc->ops.base_op_id) = klass->class_id << OP_CLASS_OFFSET;
485 _eo_class_mro_has(const Eo_Class *klass, const Eo_Class *find)
487 const Eo_Class **itr;
488 for (itr = klass->mro ; *itr ; itr++)
501 _eo_class_mro_add(Eina_List *mro, const Eo_Class *klass)
503 Eina_List *extn_pos = NULL;
504 Eina_Bool check_consistency = !mro;
508 mro = eina_list_append(mro, klass);
510 /* Recursively add extenions. */
512 Eo_Extension_Node *extn;
513 EINA_INLIST_FOREACH(klass->extensions, extn)
515 mro = _eo_class_mro_add(mro, extn->klass);
516 /* Not possible: if (!mro) return NULL; */
518 if (check_consistency)
520 extn_pos = eina_list_append(extn_pos, eina_list_last(mro));
525 /* Check if we can create a consistent mro. We only do it for the class
526 * we are working on (i.e no parents). */
527 if (check_consistency)
529 Eo_Extension_Node *extn;
531 Eina_List *itr = extn_pos;
532 EINA_INLIST_FOREACH(klass->extensions, extn)
534 /* Get the first one after the extension. */
535 Eina_List *extn_list = eina_list_next(eina_list_data_get(itr));
537 /* If we found the extension again. */
538 if (eina_list_data_find_list(extn_list, extn->klass))
541 ERR("Cannot create a consistent method resolution order for class '%s' because of '%s'.", klass->desc->name, extn->klass->desc->name);
545 itr = eina_list_next(itr);
550 mro = _eo_class_mro_add(mro, klass->parent);
556 _eo_class_mro_init(Eo_Class *klass)
558 Eina_List *mro = NULL;
560 DBG("Started creating MRO for class '%s'", klass->desc->name);
561 mro = _eo_class_mro_add(mro, klass);
566 /* Remove duplicates and make them the right order. */
568 Eina_List *itr1, *itr2, *itr2n;
570 itr1 = eina_list_last(mro);
573 itr2 = eina_list_prev(itr1);
577 itr2n = eina_list_prev(itr2);
579 if (eina_list_data_get(itr1) == eina_list_data_get(itr2))
581 mro = eina_list_remove_list(mro, itr2);
587 itr1 = eina_list_prev(itr1);
591 /* Copy the mro and free the list. */
593 const Eo_Class *kls_itr;
594 const Eo_Class **mro_itr;
595 klass->mro = calloc(sizeof(*klass->mro), eina_list_count(mro) + 1);
597 mro_itr = klass->mro;
599 EINA_LIST_FREE(mro, kls_itr)
601 *(mro_itr++) = kls_itr;
603 DBG("Added '%s' to MRO", kls_itr->desc->name);
608 DBG("Finished creating MRO for class '%s'", klass->desc->name);
614 _eo_class_constructor(Eo_Class *klass)
616 if (klass->constructed)
619 klass->constructed = EINA_TRUE;
621 if (klass->desc->class_constructor)
622 klass->desc->class_constructor(klass);
626 eo_class_funcs_set(Eo_Class *klass, const Eo_Op_Func_Description *func_descs)
628 EO_MAGIC_RETURN(klass, EO_CLASS_EINA_MAGIC);
630 const Eo_Op_Func_Description *itr;
634 for ( ; itr->op != 0 ; itr++)
636 const Eo_Op_Description *op_desc = _eo_op_id_desc_get(itr->op);
638 if (EINA_LIKELY(!op_desc || (itr->constant == op_desc->constant)))
640 _dich_func_set(klass, itr->op, itr->func);
644 ERR("Set function's constant property (%d) is different than the one in the op description (%d) for op '%s' in class '%s'.", itr->constant, op_desc->constant, op_desc->name, klass->desc->name);
651 eo_class_free(Eo_Class *klass)
653 if (klass->constructed)
655 if (klass->desc->class_destructor)
656 klass->desc->class_destructor(klass);
658 _dich_func_clean_all(klass);
663 Eo_Extension_Node *extn = NULL;
664 EINA_INLIST_FOREACH_SAFE(klass->extensions, itrn, extn)
673 if (klass->extn_data_off)
674 free(klass->extn_data_off);
681 _eo_class_check_op_descs(const Eo_Class *klass)
683 const Eo_Class_Description *desc = klass->desc;
684 const Eo_Op_Description *itr;
687 if (desc->ops.count > 0)
689 if (!desc->ops.base_op_id)
691 ERR("Class '%s' has a non-zero ops count, but base_id is NULL.",
696 if (!desc->ops.descs)
698 ERR("Class '%s' has a non-zero ops count, but there are no descs.",
704 itr = desc->ops.descs;
705 for (i = 0 ; i < desc->ops.count ; i++, itr++)
707 if (itr->sub_op != i)
711 ERR("Wrong order in Ops description for class '%s'. Expected %d and got %d", desc->name, i, itr->sub_op);
715 ERR("Found too few Ops description for class '%s'. Expected %d descriptions, but found %d.", desc->name, desc->ops.count, i);
721 if (itr && itr->name)
723 ERR("Found extra Ops description for class '%s'. Expected %d descriptions, but found more.", desc->name, desc->ops.count);
730 EAPI const Eo_Class *
731 eo_class_new(const Eo_Class_Description *desc, const Eo_Class *parent, ...)
736 if (parent && !EINA_MAGIC_CHECK(parent, EO_CLASS_EINA_MAGIC))
738 EINA_MAGIC_FAIL(parent, EO_CLASS_EINA_MAGIC);
742 va_start(p_list, parent);
744 EINA_SAFETY_ON_NULL_RETURN_VAL(desc, NULL);
745 EINA_SAFETY_ON_NULL_RETURN_VAL(desc->name, NULL);
747 /* Check restrictions on Interface types. */
748 if (desc->type == EO_CLASS_TYPE_INTERFACE)
750 EINA_SAFETY_ON_FALSE_RETURN_VAL(!desc->constructor, NULL);
751 EINA_SAFETY_ON_FALSE_RETURN_VAL(!desc->destructor, NULL);
752 EINA_SAFETY_ON_FALSE_RETURN_VAL(!desc->class_constructor, NULL);
753 EINA_SAFETY_ON_FALSE_RETURN_VAL(!desc->class_destructor, NULL);
754 EINA_SAFETY_ON_FALSE_RETURN_VAL(!desc->data_size, NULL);
757 klass = calloc(1, sizeof(Eo_Class));
758 klass->parent = parent;
760 /* Handle class extensions */
762 Eo_Class *extn = NULL;
764 extn = va_arg(p_list, Eo_Class *);
767 switch (extn->desc->type)
769 case EO_CLASS_TYPE_REGULAR:
770 case EO_CLASS_TYPE_REGULAR_NO_INSTANT:
771 /* Use it like an interface. */
772 case EO_CLASS_TYPE_INTERFACE:
774 case EO_CLASS_TYPE_MIXIN:
776 Eo_Extension_Node *node = calloc(1, sizeof(*node));
779 eina_inlist_append(klass->extensions,
780 EINA_INLIST_GET(node));
785 extn = va_arg(p_list, Eo_Class *);
791 /* Handle the inheritance */
794 /* Verify the inheritance is allowed. */
795 switch (klass->desc->type)
797 case EO_CLASS_TYPE_REGULAR:
798 case EO_CLASS_TYPE_REGULAR_NO_INSTANT:
799 if ((klass->parent->desc->type != EO_CLASS_TYPE_REGULAR) &&
800 (klass->parent->desc->type != EO_CLASS_TYPE_REGULAR_NO_INSTANT))
802 ERR("Regular classes ('%s') aren't allowed to inherit from non-regular classes ('%s').", klass->desc->name, klass->parent->desc->name);
806 case EO_CLASS_TYPE_INTERFACE:
807 case EO_CLASS_TYPE_MIXIN:
808 if ((klass->parent->desc->type != EO_CLASS_TYPE_INTERFACE) &&
809 (klass->parent->desc->type != EO_CLASS_TYPE_MIXIN))
811 ERR("Non-regular classes ('%s') aren't allowed to inherit from regular classes ('%s').", klass->desc->name, klass->parent->desc->name);
818 /* Update the current offset. */
819 /* FIXME: Make sure this alignment is enough. */
820 klass->data_offset = klass->parent->data_offset +
821 EO_ALIGN_SIZE(klass->parent->desc->data_size);
824 if (!_eo_class_check_op_descs(klass))
829 if (!_eo_class_mro_init(klass))
834 /* create MIXIN offset table. */
836 const Eo_Class **mro_itr = klass->mro;
837 Eo_Extension_Data_Offset *extn_data_itr;
839 size_t extn_data_off = klass->data_offset +
840 EO_ALIGN_SIZE(klass->desc->data_size);
842 /* FIXME: Make faster... */
845 if (((*mro_itr)->desc->type == EO_CLASS_TYPE_MIXIN) &&
846 ((*mro_itr)->desc->data_size > 0))
853 klass->extn_data_off = calloc(extn_num + 1,
854 sizeof(*klass->extn_data_off));
856 extn_data_itr = klass->extn_data_off;
857 mro_itr = klass->mro;
860 if (((*mro_itr)->desc->type == EO_CLASS_TYPE_MIXIN) &&
861 ((*mro_itr)->desc->data_size > 0))
863 extn_data_itr->klass = *mro_itr;
864 extn_data_itr->offset = extn_data_off;
866 extn_data_off += EO_ALIGN_SIZE(extn_data_itr->klass->desc->data_size);
872 klass->extn_data_size = extn_data_off;
875 eina_lock_take(&_eo_class_creation_lock);
876 klass->class_id = ++_eo_classes_last_id;
878 /* FIXME: Handle errors. */
880 tmp = realloc(_eo_classes, _eo_classes_last_id * sizeof(*_eo_classes));
882 _eo_classes[klass->class_id - 1] = klass;
884 eina_lock_release(&_eo_class_creation_lock);
886 EINA_MAGIC_SET(klass, EO_CLASS_EINA_MAGIC);
888 /* Flatten the function array */
890 const Eo_Class **mro_itr = klass->mro;
891 for ( ; *mro_itr ; mro_itr++)
894 for ( mro_itr-- ; mro_itr >= klass->mro ; mro_itr--)
896 _dich_copy_all(klass, *mro_itr);
900 _eo_class_base_op_init(klass);
902 _eo_class_constructor(klass);
909 eo_class_free(klass);
914 eo_add(const Eo_Class *klass, Eo *parent)
916 EO_MAGIC_RETURN_VAL(klass, EO_CLASS_EINA_MAGIC, NULL);
918 if (parent) EO_MAGIC_RETURN_VAL(parent, EO_EINA_MAGIC, NULL);
920 if (EINA_UNLIKELY(klass->desc->type != EO_CLASS_TYPE_REGULAR))
922 ERR("Class '%s' is not instantiate-able. Aborting.", klass->desc->name);
926 Eo *obj = calloc(1, EO_ALIGN_SIZE(sizeof(*obj)) +
927 (klass->data_offset + EO_ALIGN_SIZE(klass->desc->data_size)) +
928 klass->extn_data_size);
930 obj->parent = parent;
934 Eo_Kls_Itr prev_state;
936 _eo_kls_itr_init(obj, EO_NOOP, &prev_state);
937 _eo_error_unset(obj);
939 EINA_MAGIC_SET(obj, EO_EINA_MAGIC);
941 _eo_constructor(obj, klass);
943 if (EINA_UNLIKELY(_eo_error_get(obj)))
945 ERR("Type '%s' - One of the object constructors have failed.", klass->desc->name);
949 if (EINA_UNLIKELY(!_eo_kls_itr_reached_end(obj)))
951 ERR("Type '%s' - Not all of the object constructors have been executed.", klass->desc->name);
954 _eo_kls_itr_end(obj, &prev_state);
960 _eo_kls_itr_end(obj, &prev_state);
961 /* Unref twice, once for the ref above, and once for the basic object ref. */
976 eo_xref_internal(Eo *obj, const Eo *ref_obj, const char *file, int line)
978 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, obj);
983 Eo_Xref_Node *xref = calloc(1, sizeof(*xref));
984 xref->ref_obj = ref_obj;
988 /* FIXME: Make it sorted. */
989 obj->xrefs = eina_inlist_prepend(obj->xrefs, EINA_INLIST_GET(xref));
1000 eo_xunref(Eo *obj, const Eo *ref_obj)
1002 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1004 Eo_Xref_Node *xref = NULL;
1005 EINA_INLIST_FOREACH(obj->xrefs, xref)
1007 if (xref->ref_obj == ref_obj)
1013 obj->xrefs = eina_inlist_remove(obj->xrefs, EINA_INLIST_GET(xref));
1018 ERR("ref_obj (%p) does not reference obj (%p). Aborting unref.", ref_obj, obj);
1035 eo_ref(const Eo *_obj)
1037 Eo *obj = (Eo *) _obj;
1038 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, obj);
1040 return _eo_ref(obj);
1044 _eo_del_internal(Eo *obj)
1048 /* We need that for the event callbacks that may ref/unref. */
1051 eo_do(obj, eo_event_callback_call(EO_EV_DEL, NULL, NULL));
1052 obj->del = EINA_TRUE;
1054 const Eo_Class *klass = eo_class_get(obj);
1055 Eo_Kls_Itr prev_state;
1057 _eo_kls_itr_init(obj, EO_NOOP, &prev_state);
1058 _eo_error_unset(obj);
1059 _eo_destructor(obj, klass);
1060 if (_eo_error_get(obj))
1062 ERR("Type '%s' - One of the object destructors have failed.", klass->desc->name);
1065 if (!_eo_kls_itr_reached_end(obj))
1067 ERR("Type '%s' - Not all of the object destructors have been executed.", klass->desc->name);
1069 _eo_kls_itr_end(obj, &prev_state);
1070 /*FIXME: add eo_class_unref(klass) ? - just to clear the caches. */
1072 Eina_List *itr, *itr_n;
1074 EINA_LIST_FOREACH_SAFE(obj->composite_objects, itr, itr_n, emb_obj)
1076 eo_composite_object_detach(obj, emb_obj);
1085 if (--(obj->refcount) == 0)
1087 _eo_del_internal(obj);
1090 /* If for some reason it's not empty, clear it. */
1093 WRN("obj->xrefs is not empty, possibly a bug, please report. - An error will be reported for each xref in the stack.");
1094 Eina_Inlist *nitr = obj->xrefs->next;
1095 free(EINA_INLIST_CONTAINER_GET(obj->xrefs, Eo_Xref_Node));
1100 EINA_MAGIC_SET(obj, EO_DELETED_EINA_MAGIC);
1106 eo_unref(const Eo *_obj)
1108 Eo *obj = (Eo *) _obj;
1109 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1115 eo_ref_get(const Eo *obj)
1117 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, 0);
1119 return obj->refcount;
1125 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1127 _eo_del_internal(obj);
1132 eo_parent_get(const Eo *obj)
1134 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, NULL);
1140 eo_error_set_internal(const Eo *obj, const char *file, int line)
1142 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1144 ERR("Error with obj '%p' at %s:%d", obj, file, line);
1146 ((Eo *) obj)->construct_error = EINA_TRUE;
1150 _eo_error_unset(Eo *obj)
1152 obj->construct_error = EINA_FALSE;
1157 * @brief Check if there was an error when constructing, destructing or calling a function of the object.
1158 * @param obj the object to work on.
1159 * @return @c EINA_TRUE if there was an error.
1161 static inline Eina_Bool
1162 _eo_error_get(const Eo *obj)
1164 return obj->construct_error;
1168 _eo_constructor_default(Eo *obj)
1170 eo_constructor_super(obj);
1174 _eo_destructor_default(Eo *obj)
1176 eo_destructor_super(obj);
1180 _eo_constructor(Eo *obj, const Eo_Class *klass)
1185 if (klass->desc->constructor)
1186 klass->desc->constructor(obj, _eo_data_get(obj, klass));
1188 _eo_constructor_default(obj);
1192 _eo_destructor(Eo *obj, const Eo_Class *klass)
1197 if (klass->desc->destructor)
1198 klass->desc->destructor(obj, _eo_data_get(obj, klass));
1200 _eo_destructor_default(obj);
1204 eo_constructor_super(Eo *obj)
1206 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1208 _eo_constructor(obj, _eo_kls_itr_next(obj, EO_NOOP));
1212 eo_destructor_super(Eo *obj)
1214 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1216 _eo_destructor(obj, _eo_kls_itr_next(obj, EO_NOOP));
1219 static inline void *
1220 _eo_data_get(const Eo *obj, const Eo_Class *klass)
1222 if (EINA_LIKELY(klass->desc->data_size > 0))
1224 if (EINA_UNLIKELY(klass->desc->type == EO_CLASS_TYPE_MIXIN))
1226 Eo_Extension_Data_Offset *doff_itr =
1227 eo_class_get(obj)->extn_data_off;
1232 while (doff_itr->klass)
1234 if (doff_itr->klass == klass)
1235 return ((char *) obj) + EO_ALIGN_SIZE(sizeof(*obj)) +
1242 return ((char *) obj) + EO_ALIGN_SIZE(sizeof(*obj)) +
1251 eo_data_get(const Eo *obj, const Eo_Class *klass)
1254 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, NULL);
1257 if (!_eo_class_mro_has(obj->klass, klass))
1259 ERR("Tried getting data of class '%s' from object of class '%s', but the former is not a direct inheritance of the latter.", klass->desc->name, obj->klass->desc->name);
1264 ret = _eo_data_get(obj, klass);
1266 if (!ret && (klass->desc->data_size == 0))
1268 ERR("Tried getting data of class '%s', but it has none..", klass->desc->name);
1277 const char *log_dom = "eo";
1278 if (_eo_init_count++ > 0)
1284 _eo_classes_last_id = 0;
1285 _eo_log_dom = eina_log_domain_register(log_dom, EINA_COLOR_LIGHTBLUE);
1286 if (_eo_log_dom < 0)
1288 EINA_LOG_ERR("Could not register log domain: %s", log_dom);
1292 if (!eina_lock_new(&_eo_class_creation_lock))
1294 EINA_LOG_ERR("Could not init lock.");
1298 eina_magic_string_static_set(EO_EINA_MAGIC, EO_EINA_MAGIC_STR);
1299 eina_magic_string_static_set(EO_DELETED_EINA_MAGIC,
1300 EO_DELETED_EINA_MAGIC_STR);
1301 eina_magic_string_static_set(EO_CLASS_EINA_MAGIC,
1302 EO_CLASS_EINA_MAGIC_STR);
1311 Eo_Class **cls_itr = _eo_classes;
1313 if (--_eo_init_count > 0)
1316 for (i = 0 ; i < _eo_classes_last_id ; i++, cls_itr++)
1319 eo_class_free(*cls_itr);
1325 eina_lock_free(&_eo_class_creation_lock);
1327 eina_log_domain_unregister(_eo_log_dom);
1335 eo_composite_object_attach(Eo *obj, Eo *emb_obj)
1337 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1338 EO_MAGIC_RETURN(emb_obj, EO_EINA_MAGIC);
1340 eo_xref(emb_obj, obj);
1341 obj->composite_objects = eina_list_prepend(obj->composite_objects, emb_obj);
1345 eo_composite_object_detach(Eo *obj, Eo *emb_obj)
1347 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1348 EO_MAGIC_RETURN(emb_obj, EO_EINA_MAGIC);
1350 obj->composite_objects = eina_list_remove(obj->composite_objects, emb_obj);
1351 eo_xunref(emb_obj, obj);
1355 eo_composite_is(Eo *emb_obj)
1357 if (!EINA_MAGIC_CHECK(emb_obj, EO_EINA_MAGIC))
1359 EINA_MAGIC_FAIL(emb_obj, EO_EINA_MAGIC);
1363 Eo *obj = eo_parent_get(emb_obj);
1370 EINA_LIST_FOREACH(obj->composite_objects, itr, tmp)