4 #include "eo_private.h"
8 /* The last id that should be reserved for statically allocated classes. */
9 #define EO_STATIC_IDS_LAST 10
11 /* Used inside the class_get functions of classes, see #EO_DEFINE_CLASS */
12 EAPI Eina_Lock _eo_class_creation_lock;
15 static Eo_Class **_eo_classes;
16 static Eo_Class_Id _eo_classes_last_id;
17 static Eina_Bool _eo_init_count = 0;
19 static void _eo_constructor(Eo *obj, const Eo_Class *klass);
20 static void _eo_destructor(Eo *obj, const Eo_Class *klass);
21 static inline Eina_Bool _eo_error_get(const Eo *obj);
22 static inline void _eo_error_unset(Eo *obj);
23 static inline void *_eo_data_get(const Eo *obj, const Eo_Class *klass);
24 static inline Eo *_eo_ref(Eo *obj);
25 static inline void _eo_unref(Eo *obj);
30 const Eo_Class **kls_itr;
36 const Eo_Class *klass;
42 Eina_List *composite_objects;
47 Eina_Bool construct_error:1;
48 Eina_Bool manual_free:1;
52 /* Dich search, split to 0xff 0xff 0xffff */
54 #define DICH_CHAIN1_MASK (0xffff)
55 #define DICH_CHAIN_LAST_MASK (0xffff)
56 #define DICH_CHAIN1(x) (((x) >> 16) & DICH_CHAIN1_MASK)
57 #define DICH_CHAIN_LAST(x) ((x) & DICH_CHAIN_LAST_MASK)
59 #define OP_CLASS_OFFSET_GET(x) (((x) >> EO_OP_CLASS_OFFSET) & 0xffff)
60 #define OP_CLASS_GET(op) ({ \
61 Eo_Class_Id tmp = OP_CLASS_OFFSET_GET(op); \
64 #define OP_SUB_ID_GET(op) ((op) & 0xffff)
66 #define ID_CLASS_GET(id) ({ \
67 (Eo_Class *) ((id <= _eo_classes_last_id) && (id > 0)) ? \
68 (_eo_classes[id - 1]) : NULL; \
71 #define EO_ALIGN_SIZE(size) \
72 ((size) + (sizeof(void *) - ((size) % sizeof(void *))))
74 /* Structure of Eo_Op is:
79 typedef struct _Dich_Chain1 Dich_Chain1;
95 const Eo_Class *klass;
100 const Eo_Class *klass;
102 } Eo_Extension_Data_Offset;
107 Eo_Class_Id class_id;
108 const Eo_Class *parent;
109 const Eo_Class_Description *desc;
110 Dich_Chain1 *chain; /**< The size is class_id */
111 Eina_Inlist *extensions;
113 Eo_Extension_Data_Offset *extn_data_off;
114 size_t extn_data_size;
116 const Eo_Class **mro;
119 size_t data_offset; /* < Offset of the data within object data. */
121 Eina_Bool constructed : 1;
125 _dich_chain_alloc(Dich_Chain1 *chain1, size_t num_ops)
129 chain1->funcs = calloc(num_ops, sizeof(*(chain1->funcs)));
134 _dich_copy_all(Eo_Class *dst, const Eo_Class *src)
136 if (!src->chain) return;
140 dst->chain = calloc(dst->class_id, sizeof(*dst->chain));
144 const Dich_Chain1 *sc1 = src->chain;
145 Dich_Chain1 *dc1 = dst->chain;
146 for (i = 0 ; i < src->class_id ; i++, sc1++, dc1++)
151 const Eo_Class *op_klass = ID_CLASS_GET(i + 1);
152 /* Can be NULL because of future static classes. */
156 size_t num_ops = op_klass->desc->ops.count;
157 _dich_chain_alloc(dc1, num_ops);
159 const op_type_funcs *sf = sc1->funcs;
160 op_type_funcs *df = dc1->funcs;
161 for (j = 0 ; j < num_ops ; j++, df++, sf++)
165 memcpy(df, sf, sizeof(*df));
172 static inline const op_type_funcs *
173 _dich_func_get(const Eo_Class *klass, Eo_Op op)
175 if (!klass->chain) return NULL;
177 size_t idx1 = DICH_CHAIN1(op) - 1;
178 if (idx1 >= klass->class_id) return NULL;
179 const Dich_Chain1 *chain1 = &klass->chain[idx1];
180 if (!chain1->funcs) return NULL;
182 size_t idxl = DICH_CHAIN_LAST(op);
183 /* num_ops is calculated from the class. */
184 const Eo_Class *op_klass = ID_CLASS_GET(idx1 + 1);
185 if (!op_klass || (idxl >= op_klass->desc->ops.count))
188 return &chain1->funcs[idxl];
192 _dich_func_set(Eo_Class *klass, Eo_Op op, eo_op_func_type func)
194 const Eo_Class *op_klass = OP_CLASS_GET(op);
197 /* Verify op is valid. */
200 /* num_ops is calculated from the class. */
201 num_ops = op_klass->desc->ops.count;
202 if (DICH_CHAIN_LAST(op) >= num_ops)
204 ERR("OP %x is too big for the domain '%s', expected value < %x.",
205 op, op_klass->desc->name, op_klass->desc->ops.count);
211 ERR("OP %x is from an illegal class.", op);
217 klass->chain = calloc(klass->class_id, sizeof(*klass->chain));
220 size_t idx1 = DICH_CHAIN1(op) - 1;
221 Dich_Chain1 *chain1 = &klass->chain[idx1];
222 _dich_chain_alloc(chain1, num_ops);
223 chain1->funcs[DICH_CHAIN_LAST(op)].func = func;
224 chain1->funcs[DICH_CHAIN_LAST(op)].src = klass;
228 _dich_func_clean_all(Eo_Class *klass)
231 Dich_Chain1 *chain1 = klass->chain;
236 for (i = 0 ; i < klass->class_id ; i++, chain1++)
247 static const Eo_Op_Description noop_desc =
248 EO_OP_DESCRIPTION(EO_NOOP, "", "No operation.");
250 static const Eo_Op_Description *
251 _eo_op_id_desc_get(Eo_Op op)
253 const Eo_Class *klass = OP_CLASS_GET(op);
254 Eo_Op sub_id = OP_SUB_ID_GET(op);
259 if (klass && (sub_id < klass->desc->ops.count))
260 return klass->desc->ops.descs + sub_id;
266 _eo_op_id_name_get(Eo_Op op)
268 const Eo_Op_Description *desc = _eo_op_id_desc_get(op);
269 return (desc) ? desc->name : NULL;
273 _eo_kls_itr_init(const Eo_Class *obj_klass, Eo_Kls_Itr *cur, Eo_Op op, Eo_Kls_Itr *prev_state)
275 prev_state->op = cur->op;
276 prev_state->kls_itr = cur->kls_itr;
278 /* If we are in a constructor/destructor or we changed an op - init. */
279 if ((op == EO_NOOP) || (cur->op != op))
282 cur->kls_itr = obj_klass->mro;
287 _eo_kls_itr_end(Eo_Kls_Itr *cur, Eo_Kls_Itr *prev_state)
289 if (cur->op != prev_state->op)
291 cur->op = prev_state->op;
292 cur->kls_itr = prev_state->kls_itr;
296 static inline const Eo_Class *
297 _eo_kls_itr_get(Eo_Kls_Itr *cur)
299 return (cur->kls_itr) ? *(cur->kls_itr) : NULL;
302 static inline const Eo_Class *
303 _eo_kls_itr_next(Eo_Kls_Itr *cur, Eo_Op op)
307 Eo_Op node_op = cur->op;
308 ERR("Called with op %d ('%s') while expecting: %d ('%s'). This probaly means you called eo_*_super functions from a wrong place.",
309 op, _eo_op_id_name_get(op),
310 node_op, _eo_op_id_name_get(node_op));
314 const Eo_Class **kls_itr = cur->kls_itr;
319 const op_type_funcs *fsrc = _dich_func_get(*kls_itr, op);
321 while (*kls_itr && (*(kls_itr++) != fsrc->src))
329 cur->kls_itr = kls_itr;
338 static inline Eina_Bool
339 _eo_kls_itr_reached_end(const Eo_Kls_Itr *cur)
341 const Eo_Class **kls_itr = cur->kls_itr;
342 return !(*kls_itr && *(kls_itr + 1));
345 static inline const op_type_funcs *
346 _eo_kls_itr_func_get(const Eo_Class *klass, Eo_Kls_Itr *mro_itr, Eo_Op op, Eo_Kls_Itr *prev_state)
348 _eo_kls_itr_init(klass, mro_itr, op, prev_state);
349 klass = _eo_kls_itr_get(mro_itr);
352 const op_type_funcs *func = _dich_func_get(klass, op);
354 if (func && func->func)
363 #define _EO_OP_ERR_NO_OP_PRINT(op, klass) \
366 const Eo_Class *op_klass = OP_CLASS_GET(op); \
367 const char *_dom_name = (op_klass) ? op_klass->desc->name : NULL; \
368 ERR("Can't find func for op %x ('%s' of domain '%s') for class '%s'. Aborting.", \
369 op, _eo_op_id_name_get(op), _dom_name, \
370 (klass) ? klass->desc->name : NULL); \
375 _eo_op_internal(Eo *obj, Eo_Op_Type op_type, Eo_Op op, va_list *p_list)
377 Eina_Bool ret = EINA_FALSE;
379 const Eo_Op_Description *op_desc = _eo_op_id_desc_get(op);
383 if (op_desc->op_type == EO_OP_TYPE_CLASS)
385 ERR("Tried calling a class op '%s' (%d) from a non-class context.", (op_desc) ? op_desc->name : NULL, op);
388 else if ((op_type == EO_OP_TYPE_CONST) &&
389 (op_desc->op_type != EO_OP_TYPE_CONST))
391 ERR("Tried calling non-const or non-existant op '%s' (%d) from a const (query) function.", (op_desc) ? op_desc->name : NULL, op);
396 Eo_Kls_Itr prev_state;
399 const op_type_funcs *func =
400 _eo_kls_itr_func_get(obj->klass, &obj->mro_itr, op, &prev_state);
403 func->func(obj, _eo_data_get(obj, func->src), p_list);
409 /* Try composite objects */
413 EINA_LIST_FOREACH(obj->composite_objects, itr, emb_obj)
415 if (_eo_op_internal(emb_obj, op_type, op, p_list))
424 _eo_kls_itr_end(&obj->mro_itr, &prev_state);
429 eo_do_internal(Eo *obj, Eo_Op_Type op_type, ...)
431 Eina_Bool ret = EINA_TRUE;
435 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, EINA_FALSE);
439 va_start(p_list, op_type);
441 op = va_arg(p_list, Eo_Op);
444 if (!_eo_op_internal(obj, op_type, op, &p_list))
446 _EO_OP_ERR_NO_OP_PRINT(op, obj->klass);
450 op = va_arg(p_list, Eo_Op);
460 eo_do_super_internal(Eo *obj, Eo_Op_Type op_type, Eo_Op op, ...)
462 const Eo_Class *nklass;
463 Eina_Bool ret = EINA_TRUE;
465 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, EINA_FALSE);
467 /* Advance the kls itr. */
468 nklass = _eo_kls_itr_next(&obj->mro_itr, op);
470 if (obj->mro_itr.op != op)
473 va_start(p_list, op);
474 if (!_eo_op_internal(obj, op_type, op, &p_list))
476 _EO_OP_ERR_NO_OP_PRINT(op, nklass);
485 _eo_class_op_internal(Eo_Class *klass, Eo_Op op, va_list *p_list)
487 Eina_Bool ret = EINA_FALSE;
489 const Eo_Op_Description *op_desc = _eo_op_id_desc_get(op);
493 if (op_desc->op_type != EO_OP_TYPE_CLASS)
495 ERR("Tried calling an instant op '%s' (%d) from a class context.", (op_desc) ? op_desc->name : NULL, op);
500 Eo_Kls_Itr prev_state;
503 const op_type_funcs *func =
504 _eo_kls_itr_func_get(klass, &klass->mro_itr, op, &prev_state);
507 ((eo_op_func_type_class) func->func)(klass, p_list);
514 _eo_kls_itr_end(&klass->mro_itr, &prev_state);
519 eo_class_do_internal(const Eo_Class *klass, ...)
521 Eina_Bool ret = EINA_TRUE;
525 EO_MAGIC_RETURN_VAL(klass, EO_CLASS_EINA_MAGIC, EINA_FALSE);
527 va_start(p_list, klass);
529 op = va_arg(p_list, Eo_Op);
532 if (!_eo_class_op_internal((Eo_Class *) klass, op, &p_list))
534 _EO_OP_ERR_NO_OP_PRINT(op, klass);
538 op = va_arg(p_list, Eo_Op);
547 eo_class_do_super_internal(const Eo_Class *klass, Eo_Op op, ...)
549 const Eo_Class *nklass;
550 Eina_Bool ret = EINA_TRUE;
552 EO_MAGIC_RETURN_VAL(klass, EO_CLASS_EINA_MAGIC, EINA_FALSE);
554 /* Advance the kls itr. */
555 nklass = _eo_kls_itr_next(&((Eo_Class *) klass)->mro_itr, op);
557 if (klass->mro_itr.op != op)
560 va_start(p_list, op);
561 if (!_eo_class_op_internal((Eo_Class *) klass, op, &p_list))
563 _EO_OP_ERR_NO_OP_PRINT(op, nklass);
571 EAPI const Eo_Class *
572 eo_class_get(const Eo *obj)
574 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, EINA_FALSE);
580 eo_class_name_get(const Eo_Class *klass)
582 EO_MAGIC_RETURN_VAL(klass, EO_CLASS_EINA_MAGIC, NULL);
584 return klass->desc->name;
588 _eo_class_base_op_init(Eo_Class *klass)
590 const Eo_Class_Description *desc = klass->desc;
591 if (!desc || !desc->ops.base_op_id)
594 *(desc->ops.base_op_id) = EO_CLASS_ID_TO_BASE_ID(klass->class_id);
599 _eo_class_mro_has(const Eo_Class *klass, const Eo_Class *find)
601 const Eo_Class **itr;
602 for (itr = klass->mro ; *itr ; itr++)
615 _eo_class_mro_add(Eina_List *mro, const Eo_Class *klass)
617 Eina_List *extn_pos = NULL;
618 Eina_Bool check_consistency = !mro;
622 mro = eina_list_append(mro, klass);
624 /* Recursively add extenions. */
626 Eo_Extension_Node *extn;
627 EINA_INLIST_FOREACH(klass->extensions, extn)
629 mro = _eo_class_mro_add(mro, extn->klass);
630 /* Not possible: if (!mro) return NULL; */
632 if (check_consistency)
634 extn_pos = eina_list_append(extn_pos, eina_list_last(mro));
639 /* Check if we can create a consistent mro. We only do it for the class
640 * we are working on (i.e no parents). */
641 if (check_consistency)
643 Eo_Extension_Node *extn;
645 Eina_List *itr = extn_pos;
646 EINA_INLIST_FOREACH(klass->extensions, extn)
648 /* Get the first one after the extension. */
649 Eina_List *extn_list = eina_list_next(eina_list_data_get(itr));
651 /* If we found the extension again. */
652 if (eina_list_data_find_list(extn_list, extn->klass))
655 ERR("Cannot create a consistent method resolution order for class '%s' because of '%s'.", klass->desc->name, extn->klass->desc->name);
659 itr = eina_list_next(itr);
664 mro = _eo_class_mro_add(mro, klass->parent);
670 _eo_class_mro_init(Eo_Class *klass)
672 Eina_List *mro = NULL;
674 DBG("Started creating MRO for class '%s'", klass->desc->name);
675 mro = _eo_class_mro_add(mro, klass);
680 /* Remove duplicates and make them the right order. */
682 Eina_List *itr1, *itr2, *itr2n;
684 itr1 = eina_list_last(mro);
687 itr2 = eina_list_prev(itr1);
691 itr2n = eina_list_prev(itr2);
693 if (eina_list_data_get(itr1) == eina_list_data_get(itr2))
695 mro = eina_list_remove_list(mro, itr2);
701 itr1 = eina_list_prev(itr1);
705 /* Copy the mro and free the list. */
707 const Eo_Class *kls_itr;
708 const Eo_Class **mro_itr;
709 klass->mro = calloc(sizeof(*klass->mro), eina_list_count(mro) + 1);
711 mro_itr = klass->mro;
713 EINA_LIST_FREE(mro, kls_itr)
715 *(mro_itr++) = kls_itr;
717 DBG("Added '%s' to MRO", kls_itr->desc->name);
722 DBG("Finished creating MRO for class '%s'", klass->desc->name);
728 _eo_class_constructor(Eo_Class *klass)
730 if (klass->constructed)
733 klass->constructed = EINA_TRUE;
735 if (klass->desc->class_constructor)
736 klass->desc->class_constructor(klass);
740 eo_class_funcs_set(Eo_Class *klass, const Eo_Op_Func_Description *func_descs)
742 EO_MAGIC_RETURN(klass, EO_CLASS_EINA_MAGIC);
744 const Eo_Op_Func_Description *itr;
748 for ( ; itr->op != 0 ; itr++)
750 const Eo_Op_Description *op_desc = _eo_op_id_desc_get(itr->op);
752 if (EINA_LIKELY(!op_desc || (itr->op_type == op_desc->op_type)))
754 _dich_func_set(klass, itr->op, itr->func);
758 ERR("Set function's op type (%d) is different than the one in the op description (%d) for op '%s' in class '%s'.", itr->op_type, op_desc->op_type, op_desc->name, klass->desc->name);
765 eo_class_free(Eo_Class *klass)
767 if (klass->constructed)
769 if (klass->desc->class_destructor)
770 klass->desc->class_destructor(klass);
772 _dich_func_clean_all(klass);
777 Eo_Extension_Node *extn = NULL;
778 EINA_INLIST_FOREACH_SAFE(klass->extensions, itrn, extn)
787 if (klass->extn_data_off)
788 free(klass->extn_data_off);
795 _eo_class_check_op_descs(const Eo_Class *klass, Eo_Class_Id id)
797 const Eo_Class_Description *desc = klass->desc;
798 const Eo_Op_Description *itr;
801 if (desc->ops.count > 0)
803 if (((id == 0) || (id > EO_STATIC_IDS_LAST)) && !desc->ops.base_op_id)
805 ERR("Class '%s' has a non-zero ops count, but base_id is NULL.",
810 if (!desc->ops.descs)
812 ERR("Class '%s' has a non-zero ops count, but there are no descs.",
818 itr = desc->ops.descs;
819 for (i = 0 ; i < desc->ops.count ; i++, itr++)
821 if (itr->sub_op != i)
825 ERR("Wrong order in Ops description for class '%s'. Expected %d and got %d", desc->name, i, itr->sub_op);
829 ERR("Found too few Ops description for class '%s'. Expected %d descriptions, but found %d.", desc->name, desc->ops.count, i);
835 if (itr && itr->name)
837 ERR("Found extra Ops description for class '%s'. Expected %d descriptions, but found more.", desc->name, desc->ops.count);
844 EAPI const Eo_Class *
845 eo_class_new(const Eo_Class_Description *desc, Eo_Class_Id id, const Eo_Class *parent, ...)
850 if (parent && !EINA_MAGIC_CHECK(parent, EO_CLASS_EINA_MAGIC))
852 EINA_MAGIC_FAIL(parent, EO_CLASS_EINA_MAGIC);
856 if (id > EO_STATIC_IDS_LAST)
858 ERR("Tried creating a class with the static id %d while the maximum static id is %d. Aborting.", id, EO_STATIC_IDS_LAST);
862 va_start(p_list, parent);
864 EINA_SAFETY_ON_NULL_RETURN_VAL(desc, NULL);
865 EINA_SAFETY_ON_NULL_RETURN_VAL(desc->name, NULL);
867 /* Check restrictions on Interface types. */
868 if (desc->type == EO_CLASS_TYPE_INTERFACE)
870 EINA_SAFETY_ON_FALSE_RETURN_VAL(!desc->constructor, NULL);
871 EINA_SAFETY_ON_FALSE_RETURN_VAL(!desc->destructor, NULL);
872 EINA_SAFETY_ON_FALSE_RETURN_VAL(!desc->class_constructor, NULL);
873 EINA_SAFETY_ON_FALSE_RETURN_VAL(!desc->class_destructor, NULL);
874 EINA_SAFETY_ON_FALSE_RETURN_VAL(!desc->data_size, NULL);
877 klass = calloc(1, sizeof(Eo_Class));
878 klass->parent = parent;
880 /* Handle class extensions */
882 Eo_Class *extn = NULL;
884 extn = va_arg(p_list, Eo_Class *);
887 switch (extn->desc->type)
889 case EO_CLASS_TYPE_REGULAR:
890 case EO_CLASS_TYPE_REGULAR_NO_INSTANT:
891 /* Use it like an interface. */
892 case EO_CLASS_TYPE_INTERFACE:
894 case EO_CLASS_TYPE_MIXIN:
896 Eo_Extension_Node *node = calloc(1, sizeof(*node));
899 eina_inlist_append(klass->extensions,
900 EINA_INLIST_GET(node));
905 extn = va_arg(p_list, Eo_Class *);
911 /* Handle the inheritance */
914 /* Verify the inheritance is allowed. */
915 switch (klass->desc->type)
917 case EO_CLASS_TYPE_REGULAR:
918 case EO_CLASS_TYPE_REGULAR_NO_INSTANT:
919 if ((klass->parent->desc->type != EO_CLASS_TYPE_REGULAR) &&
920 (klass->parent->desc->type != EO_CLASS_TYPE_REGULAR_NO_INSTANT))
922 ERR("Regular classes ('%s') aren't allowed to inherit from non-regular classes ('%s').", klass->desc->name, klass->parent->desc->name);
926 case EO_CLASS_TYPE_INTERFACE:
927 case EO_CLASS_TYPE_MIXIN:
928 if ((klass->parent->desc->type != EO_CLASS_TYPE_INTERFACE) &&
929 (klass->parent->desc->type != EO_CLASS_TYPE_MIXIN))
931 ERR("Non-regular classes ('%s') aren't allowed to inherit from regular classes ('%s').", klass->desc->name, klass->parent->desc->name);
938 /* Update the current offset. */
939 /* FIXME: Make sure this alignment is enough. */
940 klass->data_offset = klass->parent->data_offset +
941 EO_ALIGN_SIZE(klass->parent->desc->data_size);
944 if (!_eo_class_check_op_descs(klass, id))
949 if (!_eo_class_mro_init(klass))
954 /* create MIXIN offset table. */
956 const Eo_Class **mro_itr = klass->mro;
957 Eo_Extension_Data_Offset *extn_data_itr;
959 size_t extn_data_off = klass->data_offset +
960 EO_ALIGN_SIZE(klass->desc->data_size);
962 /* FIXME: Make faster... */
965 if (((*mro_itr)->desc->type == EO_CLASS_TYPE_MIXIN) &&
966 ((*mro_itr)->desc->data_size > 0))
973 klass->extn_data_off = calloc(extn_num + 1,
974 sizeof(*klass->extn_data_off));
976 extn_data_itr = klass->extn_data_off;
977 mro_itr = klass->mro;
980 if (((*mro_itr)->desc->type == EO_CLASS_TYPE_MIXIN) &&
981 ((*mro_itr)->desc->data_size > 0))
983 extn_data_itr->klass = *mro_itr;
984 extn_data_itr->offset = extn_data_off;
986 extn_data_off += EO_ALIGN_SIZE(extn_data_itr->klass->desc->data_size);
992 klass->extn_data_size = extn_data_off;
995 eina_lock_take(&_eo_class_creation_lock);
999 klass->class_id = ++_eo_classes_last_id;
1004 if (_eo_classes && _eo_classes[id - 1])
1006 ERR("A class with id %d was already defined (%s). Aborting.", id,
1007 _eo_classes[id - 1]->desc->name);
1008 eina_lock_release(&_eo_class_creation_lock);
1012 klass->class_id = id;
1017 /* FIXME: Handle errors. */
1018 size_t arrsize = _eo_classes_last_id * sizeof(*_eo_classes);
1020 tmp = realloc(_eo_classes, arrsize);
1022 /* If it's the first allocation, memset. */
1024 memset(tmp, 0, arrsize);
1027 _eo_classes[klass->class_id - 1] = klass;
1029 eina_lock_release(&_eo_class_creation_lock);
1031 EINA_MAGIC_SET(klass, EO_CLASS_EINA_MAGIC);
1033 /* Flatten the function array */
1035 const Eo_Class **mro_itr = klass->mro;
1036 for ( ; *mro_itr ; mro_itr++)
1039 /* Skip ourselves. */
1040 for ( mro_itr-- ; mro_itr > klass->mro ; mro_itr--)
1042 _dich_copy_all(klass, *mro_itr);
1046 _eo_class_base_op_init(klass);
1048 _eo_class_constructor(klass);
1055 eo_class_free(klass);
1060 eo_add(const Eo_Class *klass, Eo *parent)
1062 EO_MAGIC_RETURN_VAL(klass, EO_CLASS_EINA_MAGIC, NULL);
1064 if (parent) EO_MAGIC_RETURN_VAL(parent, EO_EINA_MAGIC, NULL);
1066 if (EINA_UNLIKELY(klass->desc->type != EO_CLASS_TYPE_REGULAR))
1068 ERR("Class '%s' is not instantiate-able. Aborting.", klass->desc->name);
1072 Eo *obj = calloc(1, EO_ALIGN_SIZE(sizeof(*obj)) +
1073 (klass->data_offset + EO_ALIGN_SIZE(klass->desc->data_size)) +
1074 klass->extn_data_size);
1076 obj->parent = parent;
1080 Eo_Kls_Itr prev_state;
1082 _eo_kls_itr_init(klass, &obj->mro_itr, EO_NOOP, &prev_state);
1083 _eo_error_unset(obj);
1085 EINA_MAGIC_SET(obj, EO_EINA_MAGIC);
1087 _eo_constructor(obj, klass);
1089 if (EINA_UNLIKELY(_eo_error_get(obj)))
1091 ERR("Type '%s' - One of the object constructors have failed.", klass->desc->name);
1095 if (EINA_UNLIKELY(!_eo_kls_itr_reached_end(&obj->mro_itr)))
1097 ERR("Type '%s' - Not all of the object constructors have been executed.", klass->desc->name);
1100 _eo_kls_itr_end(&obj->mro_itr, &prev_state);
1106 _eo_kls_itr_end(&obj->mro_itr, &prev_state);
1107 /* Unref twice, once for the ref above, and once for the basic object ref. */
1122 eo_xref_internal(Eo *obj, const Eo *ref_obj, const char *file, int line)
1124 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, obj);
1129 Eo_Xref_Node *xref = calloc(1, sizeof(*xref));
1130 xref->ref_obj = ref_obj;
1134 /* FIXME: Make it sorted. */
1135 obj->xrefs = eina_inlist_prepend(obj->xrefs, EINA_INLIST_GET(xref));
1146 eo_xunref(Eo *obj, const Eo *ref_obj)
1148 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1150 Eo_Xref_Node *xref = NULL;
1151 EINA_INLIST_FOREACH(obj->xrefs, xref)
1153 if (xref->ref_obj == ref_obj)
1159 obj->xrefs = eina_inlist_remove(obj->xrefs, EINA_INLIST_GET(xref));
1164 ERR("ref_obj (%p) does not reference obj (%p). Aborting unref.", ref_obj, obj);
1181 eo_ref(const Eo *_obj)
1183 Eo *obj = (Eo *) _obj;
1184 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, obj);
1186 return _eo_ref(obj);
1190 _eo_del_internal(Eo *obj)
1194 /* We need that for the event callbacks that may ref/unref. */
1197 eo_do(obj, eo_event_callback_call(EO_EV_DEL, NULL, NULL));
1198 obj->del = EINA_TRUE;
1200 const Eo_Class *klass = eo_class_get(obj);
1201 Eo_Kls_Itr prev_state;
1203 _eo_kls_itr_init(klass, &obj->mro_itr, EO_NOOP, &prev_state);
1204 _eo_error_unset(obj);
1205 _eo_destructor(obj, klass);
1206 if (_eo_error_get(obj))
1208 ERR("Type '%s' - One of the object destructors have failed.", klass->desc->name);
1211 if (!_eo_kls_itr_reached_end(&obj->mro_itr))
1213 ERR("Type '%s' - Not all of the object destructors have been executed.", klass->desc->name);
1215 _eo_kls_itr_end(&obj->mro_itr, &prev_state);
1216 /*FIXME: add eo_class_unref(klass) ? - just to clear the caches. */
1218 Eina_List *itr, *itr_n;
1220 EINA_LIST_FOREACH_SAFE(obj->composite_objects, itr, itr_n, emb_obj)
1222 eo_composite_object_detach(obj, emb_obj);
1231 EINA_MAGIC_SET(obj, EO_DELETED_EINA_MAGIC);
1238 if (--(obj->refcount) == 0)
1240 _eo_del_internal(obj);
1243 /* If for some reason it's not empty, clear it. */
1246 WRN("obj->xrefs is not empty, possibly a bug, please report. - An error will be reported for each xref in the stack.");
1247 Eina_Inlist *nitr = obj->xrefs->next;
1248 free(EINA_INLIST_CONTAINER_GET(obj->xrefs, Eo_Xref_Node));
1253 if (!obj->manual_free) _eo_free(obj);
1258 eo_unref(const Eo *_obj)
1260 Eo *obj = (Eo *) _obj;
1261 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1267 eo_ref_get(const Eo *obj)
1269 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, 0);
1271 return obj->refcount;
1275 eo_parent_get(const Eo *obj)
1277 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, NULL);
1283 eo_error_set_internal(const Eo *obj, const char *file, int line)
1285 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1287 ERR("Error with obj '%p' at %s:%d", obj, file, line);
1289 ((Eo *) obj)->construct_error = EINA_TRUE;
1293 _eo_error_unset(Eo *obj)
1295 obj->construct_error = EINA_FALSE;
1300 * @brief Check if there was an error when constructing, destructing or calling a function of the object.
1301 * @param obj the object to work on.
1302 * @return @c EINA_TRUE if there was an error.
1304 static inline Eina_Bool
1305 _eo_error_get(const Eo *obj)
1307 return obj->construct_error;
1311 _eo_constructor_default(Eo *obj)
1313 eo_constructor_super(obj);
1317 _eo_destructor_default(Eo *obj)
1319 eo_destructor_super(obj);
1323 _eo_constructor(Eo *obj, const Eo_Class *klass)
1328 if (klass->desc->constructor)
1329 klass->desc->constructor(obj, _eo_data_get(obj, klass));
1331 _eo_constructor_default(obj);
1335 _eo_destructor(Eo *obj, const Eo_Class *klass)
1340 if (klass->desc->destructor)
1341 klass->desc->destructor(obj, _eo_data_get(obj, klass));
1343 _eo_destructor_default(obj);
1347 eo_constructor_super(Eo *obj)
1349 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1351 _eo_constructor(obj, _eo_kls_itr_next(&obj->mro_itr, EO_NOOP));
1355 eo_destructor_super(Eo *obj)
1357 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1359 _eo_destructor(obj, _eo_kls_itr_next(&obj->mro_itr, EO_NOOP));
1362 static inline void *
1363 _eo_data_get(const Eo *obj, const Eo_Class *klass)
1365 if (EINA_LIKELY(klass->desc->data_size > 0))
1367 if (EINA_UNLIKELY(klass->desc->type == EO_CLASS_TYPE_MIXIN))
1369 Eo_Extension_Data_Offset *doff_itr =
1370 eo_class_get(obj)->extn_data_off;
1375 while (doff_itr->klass)
1377 if (doff_itr->klass == klass)
1378 return ((char *) obj) + EO_ALIGN_SIZE(sizeof(*obj)) +
1385 return ((char *) obj) + EO_ALIGN_SIZE(sizeof(*obj)) +
1394 eo_data_get(const Eo *obj, const Eo_Class *klass)
1397 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, NULL);
1400 if (!_eo_class_mro_has(obj->klass, klass))
1402 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);
1407 ret = _eo_data_get(obj, klass);
1410 if (!ret && (klass->desc->data_size == 0))
1412 ERR("Tried getting data of class '%s', but it has none..", klass->desc->name);
1422 const char *log_dom = "eo";
1423 if (_eo_init_count++ > 0)
1429 _eo_classes_last_id = EO_STATIC_IDS_LAST;
1430 _eo_log_dom = eina_log_domain_register(log_dom, EINA_COLOR_LIGHTBLUE);
1431 if (_eo_log_dom < 0)
1433 EINA_LOG_ERR("Could not register log domain: %s", log_dom);
1437 if (!eina_lock_new(&_eo_class_creation_lock))
1439 EINA_LOG_ERR("Could not init lock.");
1443 eina_magic_string_static_set(EO_EINA_MAGIC, EO_EINA_MAGIC_STR);
1444 eina_magic_string_static_set(EO_DELETED_EINA_MAGIC,
1445 EO_DELETED_EINA_MAGIC_STR);
1446 eina_magic_string_static_set(EO_CLASS_EINA_MAGIC,
1447 EO_CLASS_EINA_MAGIC_STR);
1456 Eo_Class **cls_itr = _eo_classes;
1458 if (--_eo_init_count > 0)
1461 for (i = 0 ; i < _eo_classes_last_id ; i++, cls_itr++)
1464 eo_class_free(*cls_itr);
1470 eina_lock_free(&_eo_class_creation_lock);
1472 eina_log_domain_unregister(_eo_log_dom);
1480 eo_composite_object_attach(Eo *obj, Eo *emb_obj)
1482 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1483 EO_MAGIC_RETURN(emb_obj, EO_EINA_MAGIC);
1485 eo_xref(emb_obj, obj);
1486 obj->composite_objects = eina_list_prepend(obj->composite_objects, emb_obj);
1490 eo_composite_object_detach(Eo *obj, Eo *emb_obj)
1492 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1493 EO_MAGIC_RETURN(emb_obj, EO_EINA_MAGIC);
1495 obj->composite_objects = eina_list_remove(obj->composite_objects, emb_obj);
1496 eo_xunref(emb_obj, obj);
1500 eo_composite_is(const Eo *emb_obj)
1502 if (!EINA_MAGIC_CHECK(emb_obj, EO_EINA_MAGIC))
1504 EINA_MAGIC_FAIL(emb_obj, EO_EINA_MAGIC);
1508 Eo *obj = eo_parent_get(emb_obj);
1515 EINA_LIST_FOREACH(obj->composite_objects, itr, tmp)
1525 eo_manual_free_set(Eo *obj, Eina_Bool manual_free)
1527 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1528 obj->manual_free = manual_free;
1532 eo_manual_free(Eo *obj)
1534 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1536 if (EINA_FALSE == obj->manual_free)
1538 ERR("Tried manually free the object %p while the option has not been set; see eo_manual_free_set for more information.", obj);
1542 if (0 != obj->refcount)
1544 ERR("Tried deleting the object %p while still referenced(%d).", obj, eo_ref_get(obj));