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_condtor_reset(Eo *obj);
20 static inline void *_eo_data_get(const Eo *obj, const Eo_Class *klass);
21 static inline Eo *_eo_ref(Eo *obj);
22 static inline void _eo_unref(Eo *obj);
27 const Eo_Class **kls_itr;
34 Eina_Inlist *children;
35 const Eo_Class *klass;
41 Eina_List *composite_objects;
46 Eina_Bool condtor_done:1;
48 Eina_Bool composite:1;
50 Eina_Bool manual_free:1;
54 /* Dich search, split to 0xff 0xff 0xffff */
56 #define DICH_CHAIN1_MASK (0xffff)
57 #define DICH_CHAIN_LAST_MASK (0xffff)
58 #define DICH_CHAIN1(x) (((x) >> 16) & DICH_CHAIN1_MASK)
59 #define DICH_CHAIN_LAST(x) ((x) & DICH_CHAIN_LAST_MASK)
61 #define OP_CLASS_OFFSET_GET(x) (((x) >> EO_OP_CLASS_OFFSET) & 0xffff)
62 #define OP_CLASS_GET(op) ({ \
63 Eo_Class_Id tmp = OP_CLASS_OFFSET_GET(op); \
66 #define OP_SUB_ID_GET(op) ((op) & 0xffff)
68 #define ID_CLASS_GET(id) ({ \
69 (Eo_Class *) ((id <= _eo_classes_last_id) && (id > 0)) ? \
70 (_eo_classes[id - 1]) : NULL; \
73 #define EO_ALIGN_SIZE(size) \
74 ((size) + (sizeof(void *) - ((size) % sizeof(void *))))
76 /* Structure of Eo_Op is:
81 typedef struct _Dich_Chain1 Dich_Chain1;
96 const Eo_Class *klass;
98 } Eo_Extension_Data_Offset;
103 Eo_Class_Id class_id;
104 const Eo_Class *parent;
105 const Eo_Class_Description *desc;
106 Dich_Chain1 *chain; /**< The size is class_id */
108 const Eo_Class **extensions;
110 Eo_Extension_Data_Offset *extn_data_off;
111 size_t extn_data_size;
113 const Eo_Class **mro;
116 size_t data_offset; /* < Offset of the data within object data. */
118 Eina_Bool constructed : 1;
122 _dich_chain_alloc(Dich_Chain1 *chain1, size_t num_ops)
126 chain1->funcs = calloc(num_ops, sizeof(*(chain1->funcs)));
131 _dich_copy_all(Eo_Class *dst, const Eo_Class *src)
133 if (!src->chain) return;
137 dst->chain = calloc(dst->class_id, sizeof(*dst->chain));
141 const Dich_Chain1 *sc1 = src->chain;
142 Dich_Chain1 *dc1 = dst->chain;
143 for (i = 0 ; i < src->class_id ; i++, sc1++, dc1++)
148 const Eo_Class *op_klass = ID_CLASS_GET(i + 1);
149 /* Can be NULL because of future static classes. */
153 size_t num_ops = op_klass->desc->ops.count;
154 _dich_chain_alloc(dc1, num_ops);
156 const op_type_funcs *sf = sc1->funcs;
157 op_type_funcs *df = dc1->funcs;
158 for (j = 0 ; j < num_ops ; j++, df++, sf++)
162 memcpy(df, sf, sizeof(*df));
169 static inline const op_type_funcs *
170 _dich_func_get(const Eo_Class *klass, Eo_Op op)
172 if (!klass->chain) return NULL;
174 size_t idx1 = DICH_CHAIN1(op) - 1;
175 if (idx1 >= klass->class_id) return NULL;
176 const Dich_Chain1 *chain1 = &klass->chain[idx1];
177 if (!chain1->funcs) return NULL;
179 size_t idxl = DICH_CHAIN_LAST(op);
180 /* num_ops is calculated from the class. */
181 const Eo_Class *op_klass = ID_CLASS_GET(idx1 + 1);
182 if (!op_klass || (idxl >= op_klass->desc->ops.count))
185 return &chain1->funcs[idxl];
189 _dich_func_set(Eo_Class *klass, Eo_Op op, eo_op_func_type func)
191 const Eo_Class *op_klass = OP_CLASS_GET(op);
194 /* Verify op is valid. */
197 /* num_ops is calculated from the class. */
198 num_ops = op_klass->desc->ops.count;
199 if (DICH_CHAIN_LAST(op) >= num_ops)
201 ERR("OP %x is too big for the domain '%s', expected value < %x.",
202 op, op_klass->desc->name, op_klass->desc->ops.count);
208 ERR("OP %x is from an illegal class.", op);
214 klass->chain = calloc(klass->class_id, sizeof(*klass->chain));
217 size_t idx1 = DICH_CHAIN1(op) - 1;
218 Dich_Chain1 *chain1 = &klass->chain[idx1];
219 _dich_chain_alloc(chain1, num_ops);
220 chain1->funcs[DICH_CHAIN_LAST(op)].func = func;
221 chain1->funcs[DICH_CHAIN_LAST(op)].src = klass;
225 _dich_func_clean_all(Eo_Class *klass)
228 Dich_Chain1 *chain1 = klass->chain;
233 for (i = 0 ; i < klass->class_id ; i++, chain1++)
244 static const Eo_Op_Description noop_desc =
245 EO_OP_DESCRIPTION(EO_NOOP, "No operation.");
247 static const Eo_Op_Description *
248 _eo_op_id_desc_get(Eo_Op op)
250 const Eo_Class *klass = OP_CLASS_GET(op);
251 Eo_Op sub_id = OP_SUB_ID_GET(op);
256 if (klass && (sub_id < klass->desc->ops.count))
257 return klass->desc->ops.descs + sub_id;
263 _eo_op_id_name_get(Eo_Op op)
265 const Eo_Op_Description *desc = _eo_op_id_desc_get(op);
266 return (desc) ? desc->name : NULL;
270 _eo_kls_itr_init(const Eo_Class *obj_klass, Eo_Kls_Itr *cur, Eo_Op op, Eo_Kls_Itr *prev_state)
272 prev_state->op = cur->op;
273 prev_state->kls_itr = cur->kls_itr;
275 /* If we are in a constructor/destructor or we changed an op - init. */
276 if ((cur->op == EO_NOOP) || (cur->op != op))
279 cur->kls_itr = obj_klass->mro;
284 _eo_kls_itr_end(Eo_Kls_Itr *cur, Eo_Kls_Itr *prev_state)
286 if (cur->op != prev_state->op)
288 cur->op = prev_state->op;
289 cur->kls_itr = prev_state->kls_itr;
293 static inline const Eo_Class *
294 _eo_kls_itr_get(Eo_Kls_Itr *cur)
296 return (cur->kls_itr) ? *(cur->kls_itr) : NULL;
299 static inline const Eo_Class *
300 _eo_kls_itr_next(Eo_Kls_Itr *cur, Eo_Op op)
304 Eo_Op node_op = cur->op;
305 ERR("Called with op %x ('%s') while expecting: %x ('%s'). This probaly means you called eo_*_super functions from a wrong place.",
306 op, _eo_op_id_name_get(op),
307 node_op, _eo_op_id_name_get(node_op));
311 const Eo_Class **kls_itr = cur->kls_itr;
314 const op_type_funcs *fsrc = _dich_func_get(*kls_itr, op);
316 while (*kls_itr && (*(kls_itr++) != fsrc->src))
319 cur->kls_itr = kls_itr;
328 static inline const op_type_funcs *
329 _eo_kls_itr_func_get(const Eo_Class *klass, Eo_Kls_Itr *mro_itr, Eo_Op op, Eo_Kls_Itr *prev_state)
331 _eo_kls_itr_init(klass, mro_itr, op, prev_state);
332 klass = _eo_kls_itr_get(mro_itr);
335 const op_type_funcs *func = _dich_func_get(klass, op);
337 if (func && func->func)
346 #define _EO_OP_ERR_NO_OP_PRINT(op, klass) \
349 const Eo_Class *op_klass = OP_CLASS_GET(op); \
350 const char *_dom_name = (op_klass) ? op_klass->desc->name : NULL; \
351 ERR("Can't find func for op %x ('%s' of domain '%s') for class '%s'. Aborting.", \
352 op, _eo_op_id_name_get(op), _dom_name, \
353 (klass) ? klass->desc->name : NULL); \
358 _eo_op_internal(Eo *obj, Eo_Op_Type op_type, Eo_Op op, va_list *p_list)
360 Eina_Bool ret = EINA_FALSE;
363 const Eo_Op_Description *op_desc = _eo_op_id_desc_get(op);
367 if (op_desc->op_type == EO_OP_TYPE_CLASS)
369 ERR("Tried calling a class op '%s' (%x) from a non-class context.", (op_desc) ? op_desc->name : NULL, op);
372 else if ((op_type == EO_OP_TYPE_CONST) &&
373 (op_desc->op_type != EO_OP_TYPE_CONST))
375 ERR("Tried calling non-const or non-existant op '%s' (%x) from a const (query) function.", (op_desc) ? op_desc->name : NULL, op);
381 Eo_Kls_Itr prev_state;
384 const op_type_funcs *func =
385 _eo_kls_itr_func_get(obj->klass, &obj->mro_itr, op, &prev_state);
388 func->func(obj, _eo_data_get(obj, func->src), p_list);
394 /* Try composite objects */
398 EINA_LIST_FOREACH(obj->composite_objects, itr, emb_obj)
400 if (_eo_op_internal(emb_obj, op_type, op, p_list))
409 _eo_kls_itr_end(&obj->mro_itr, &prev_state);
414 eo_do_internal(Eo *obj, Eo_Op_Type op_type, ...)
416 Eina_Bool prev_error;
417 Eina_Bool ret = EINA_TRUE;
421 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, EINA_FALSE);
423 prev_error = obj->do_error;
426 va_start(p_list, op_type);
428 op = va_arg(p_list, Eo_Op);
431 if (!_eo_op_internal(obj, op_type, op, &p_list))
433 _EO_OP_ERR_NO_OP_PRINT(op, obj->klass);
437 op = va_arg(p_list, Eo_Op);
447 obj->do_error = prev_error;
453 eo_do_super_internal(Eo *obj, Eo_Op_Type op_type, Eo_Op op, ...)
455 const Eo_Class *nklass;
456 Eina_Bool ret = EINA_TRUE;
458 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, EINA_FALSE);
460 /* Advance the kls itr. */
461 nklass = _eo_kls_itr_next(&obj->mro_itr, op);
463 if (obj->mro_itr.op != op)
466 va_start(p_list, op);
467 if (!_eo_op_internal(obj, op_type, op, &p_list))
469 _EO_OP_ERR_NO_OP_PRINT(op, nklass);
478 _eo_class_op_internal(Eo_Class *klass, Eo_Op op, va_list *p_list)
480 Eina_Bool ret = EINA_FALSE;
483 const Eo_Op_Description *op_desc = _eo_op_id_desc_get(op);
487 if (op_desc->op_type != EO_OP_TYPE_CLASS)
489 ERR("Tried calling an instance op '%s' (%x) from a class context.", (op_desc) ? op_desc->name : NULL, op);
495 Eo_Kls_Itr prev_state;
498 const op_type_funcs *func =
499 _eo_kls_itr_func_get(klass, &klass->mro_itr, op, &prev_state);
502 ((eo_op_func_type_class) func->func)(klass, p_list);
509 _eo_kls_itr_end(&klass->mro_itr, &prev_state);
514 eo_class_do_internal(const Eo_Class *klass, ...)
516 Eina_Bool ret = EINA_TRUE;
520 EO_MAGIC_RETURN_VAL(klass, EO_CLASS_EINA_MAGIC, EINA_FALSE);
522 va_start(p_list, klass);
524 op = va_arg(p_list, Eo_Op);
527 if (!_eo_class_op_internal((Eo_Class *) klass, op, &p_list))
529 _EO_OP_ERR_NO_OP_PRINT(op, klass);
533 op = va_arg(p_list, Eo_Op);
542 eo_class_do_super_internal(const Eo_Class *klass, Eo_Op op, ...)
544 const Eo_Class *nklass;
545 Eina_Bool ret = EINA_TRUE;
547 EO_MAGIC_RETURN_VAL(klass, EO_CLASS_EINA_MAGIC, EINA_FALSE);
549 /* Advance the kls itr. */
550 nklass = _eo_kls_itr_next(&((Eo_Class *) klass)->mro_itr, op);
552 if (klass->mro_itr.op != op)
555 va_start(p_list, op);
556 if (!_eo_class_op_internal((Eo_Class *) klass, op, &p_list))
558 _EO_OP_ERR_NO_OP_PRINT(op, nklass);
566 EAPI const Eo_Class *
567 eo_class_get(const Eo *obj)
569 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, EINA_FALSE);
575 eo_class_name_get(const Eo_Class *klass)
577 EO_MAGIC_RETURN_VAL(klass, EO_CLASS_EINA_MAGIC, NULL);
579 return klass->desc->name;
583 _eo_class_base_op_init(Eo_Class *klass)
585 const Eo_Class_Description *desc = klass->desc;
586 if (!desc || !desc->ops.base_op_id)
589 *(desc->ops.base_op_id) = EO_CLASS_ID_TO_BASE_ID(klass->class_id);
594 _eo_class_mro_has(const Eo_Class *klass, const Eo_Class *find)
596 const Eo_Class **itr;
597 for (itr = klass->mro ; *itr ; itr++)
610 _eo_class_mro_add(Eina_List *mro, const Eo_Class *klass)
612 Eina_List *extn_pos = NULL;
613 Eina_Bool check_consistency = !mro;
617 mro = eina_list_append(mro, klass);
619 /* ONLY ADD MIXINS! */
621 /* Recursively add extenions. */
623 const Eo_Class **extn_itr;
625 for (extn_itr = klass->extensions ; *extn_itr ; extn_itr++)
627 const Eo_Class *extn = *extn_itr;
628 if (extn->desc->type != EO_CLASS_TYPE_MIXIN)
631 mro = _eo_class_mro_add(mro, extn);
632 /* Not possible: if (!mro) return NULL; */
634 if (check_consistency)
636 extn_pos = eina_list_append(extn_pos, eina_list_last(mro));
641 /* Check if we can create a consistent mro. We only do it for the class
642 * we are working on (i.e no parents). */
643 if (check_consistency)
645 const Eo_Class **extn_itr;
647 Eina_List *itr = extn_pos;
648 for (extn_itr = klass->extensions ; *extn_itr ; extn_itr++)
650 const Eo_Class *extn = *extn_itr;
651 if (extn->desc->type != EO_CLASS_TYPE_MIXIN)
654 /* Get the first one after the extension. */
655 Eina_List *extn_list = eina_list_next(eina_list_data_get(itr));
657 /* If we found the extension again. */
658 if (eina_list_data_find_list(extn_list, extn))
661 ERR("Cannot create a consistent method resolution order for class '%s' because of '%s'.", klass->desc->name, extn->desc->name);
665 itr = eina_list_next(itr);
670 mro = _eo_class_mro_add(mro, klass->parent);
676 _eo_class_mro_init(Eo_Class *klass)
678 Eina_List *mro = NULL;
680 DBG("Started creating MRO for class '%s'", klass->desc->name);
681 mro = _eo_class_mro_add(mro, klass);
686 /* Remove duplicates and make them the right order. */
688 Eina_List *itr1, *itr2, *itr2n;
690 itr1 = eina_list_last(mro);
693 itr2 = eina_list_prev(itr1);
697 itr2n = eina_list_prev(itr2);
699 if (eina_list_data_get(itr1) == eina_list_data_get(itr2))
701 mro = eina_list_remove_list(mro, itr2);
707 itr1 = eina_list_prev(itr1);
711 /* Copy the mro and free the list. */
713 const Eo_Class *kls_itr;
714 const Eo_Class **mro_itr;
715 klass->mro = calloc(sizeof(*klass->mro), eina_list_count(mro) + 1);
717 mro_itr = klass->mro;
719 EINA_LIST_FREE(mro, kls_itr)
721 *(mro_itr++) = kls_itr;
723 DBG("Added '%s' to MRO", kls_itr->desc->name);
728 DBG("Finished creating MRO for class '%s'", klass->desc->name);
734 _eo_class_constructor(Eo_Class *klass)
736 if (klass->constructed)
739 klass->constructed = EINA_TRUE;
741 if (klass->desc->class_constructor)
742 klass->desc->class_constructor(klass);
746 eo_class_funcs_set(Eo_Class *klass, const Eo_Op_Func_Description *func_descs)
748 EO_MAGIC_RETURN(klass, EO_CLASS_EINA_MAGIC);
750 const Eo_Op_Func_Description *itr;
754 for ( ; itr->op_type != EO_OP_TYPE_INVALID ; itr++)
756 const Eo_Op_Description *op_desc = _eo_op_id_desc_get(itr->op);
758 if (EINA_UNLIKELY(!op_desc || (itr->op == EO_NOOP)))
760 ERR("Setting implementation for non-existent op %x for class '%s'. Func index: %d", itr->op, klass->desc->name, itr - func_descs);
762 else if (EINA_LIKELY(itr->op_type == op_desc->op_type))
764 _dich_func_set(klass, itr->op, itr->func);
768 ERR("Set function's op type (%x) is different than the one in the op description (%d) for op '%s' in class '%s'. Func index: %d",
770 (op_desc) ? op_desc->op_type : EO_OP_TYPE_REGULAR,
771 (op_desc) ? op_desc->name : NULL,
780 eo_class_free(Eo_Class *klass)
782 if (klass->constructed)
784 if (klass->desc->class_destructor)
785 klass->desc->class_destructor(klass);
787 _dich_func_clean_all(klass);
790 free(klass->extensions);
795 if (klass->extn_data_off)
796 free(klass->extn_data_off);
803 _eo_class_check_op_descs(const Eo_Class *klass, Eo_Class_Id id)
805 const Eo_Class_Description *desc = klass->desc;
806 const Eo_Op_Description *itr;
809 if (desc->ops.count > 0)
811 if (((id == 0) || (id > EO_STATIC_IDS_LAST)) && !desc->ops.base_op_id)
813 ERR("Class '%s' has a non-zero ops count, but base_id is NULL.",
818 if (!desc->ops.descs)
820 ERR("Class '%s' has a non-zero ops count, but there are no descs.",
826 itr = desc->ops.descs;
827 for (i = 0 ; i < desc->ops.count ; i++, itr++)
829 if (itr->sub_op != i)
833 ERR("Wrong order in Ops description for class '%s'. Expected %x and got %x", desc->name, i, itr->sub_op);
837 ERR("Found too few Ops description for class '%s'. Expected %x descriptions, but found %x.", desc->name, desc->ops.count, i);
843 if (itr && itr->name)
845 ERR("Found extra Ops description for class '%s'. Expected %d descriptions, but found more.", desc->name, desc->ops.count);
852 EAPI const Eo_Class *
853 eo_class_new(const Eo_Class_Description *desc, Eo_Class_Id id, const Eo_Class *parent, ...)
858 if (parent && !EINA_MAGIC_CHECK(parent, EO_CLASS_EINA_MAGIC))
860 EINA_MAGIC_FAIL(parent, EO_CLASS_EINA_MAGIC);
864 if (id > EO_STATIC_IDS_LAST)
866 ERR("Tried creating a class with the static id %d while the maximum static id is %d. Aborting.", id, EO_STATIC_IDS_LAST);
870 va_start(p_list, parent);
872 EINA_SAFETY_ON_NULL_RETURN_VAL(desc, NULL);
873 EINA_SAFETY_ON_NULL_RETURN_VAL(desc->name, NULL);
875 /* Check restrictions on Interface types. */
876 if (desc->type == EO_CLASS_TYPE_INTERFACE)
878 EINA_SAFETY_ON_FALSE_RETURN_VAL(!desc->class_constructor, NULL);
879 EINA_SAFETY_ON_FALSE_RETURN_VAL(!desc->class_destructor, NULL);
880 EINA_SAFETY_ON_FALSE_RETURN_VAL(!desc->data_size, NULL);
883 klass = calloc(1, sizeof(Eo_Class));
884 klass->parent = parent;
886 /* Handle class extensions */
888 Eina_List *extn_list = NULL;
889 const Eo_Class *extn = NULL;
890 const Eo_Class **extn_itr = NULL;
892 extn = va_arg(p_list, Eo_Class *);
895 switch (extn->desc->type)
897 case EO_CLASS_TYPE_REGULAR:
898 case EO_CLASS_TYPE_REGULAR_NO_INSTANT:
899 /* Ignore regular classes ATM. */
902 case EO_CLASS_TYPE_INTERFACE:
903 case EO_CLASS_TYPE_MIXIN:
904 extn_list = eina_list_append(extn_list, extn);
908 extn = va_arg(p_list, Eo_Class *);
911 klass->extensions = calloc(sizeof(*klass->extensions),
912 eina_list_count(extn_list) + 1);
914 extn_itr = klass->extensions;
915 EINA_LIST_FREE(extn_list, extn)
917 *(extn_itr++) = extn;
923 /* Handle the inheritance */
926 /* Verify the inheritance is allowed. */
927 switch (klass->desc->type)
929 case EO_CLASS_TYPE_REGULAR:
930 case EO_CLASS_TYPE_REGULAR_NO_INSTANT:
931 if ((klass->parent->desc->type != EO_CLASS_TYPE_REGULAR) &&
932 (klass->parent->desc->type != EO_CLASS_TYPE_REGULAR_NO_INSTANT))
934 ERR("Regular classes ('%s') aren't allowed to inherit from non-regular classes ('%s').", klass->desc->name, klass->parent->desc->name);
938 case EO_CLASS_TYPE_INTERFACE:
939 case EO_CLASS_TYPE_MIXIN:
940 if ((klass->parent->desc->type != EO_CLASS_TYPE_INTERFACE) &&
941 (klass->parent->desc->type != EO_CLASS_TYPE_MIXIN))
943 ERR("Non-regular classes ('%s') aren't allowed to inherit from regular classes ('%s').", klass->desc->name, klass->parent->desc->name);
950 /* Update the current offset. */
951 /* FIXME: Make sure this alignment is enough. */
952 klass->data_offset = klass->parent->data_offset +
953 EO_ALIGN_SIZE(klass->parent->desc->data_size);
956 if (!_eo_class_check_op_descs(klass, id))
961 if (!_eo_class_mro_init(klass))
966 /* create MIXIN offset table. */
968 const Eo_Class **mro_itr = klass->mro;
969 Eo_Extension_Data_Offset *extn_data_itr;
971 size_t extn_data_off = klass->data_offset +
972 EO_ALIGN_SIZE(klass->desc->data_size);
974 /* FIXME: Make faster... */
977 if (((*mro_itr)->desc->type == EO_CLASS_TYPE_MIXIN) &&
978 ((*mro_itr)->desc->data_size > 0))
985 klass->extn_data_off = calloc(extn_num + 1,
986 sizeof(*klass->extn_data_off));
988 extn_data_itr = klass->extn_data_off;
989 mro_itr = klass->mro;
992 if (((*mro_itr)->desc->type == EO_CLASS_TYPE_MIXIN) &&
993 ((*mro_itr)->desc->data_size > 0))
995 extn_data_itr->klass = *mro_itr;
996 extn_data_itr->offset = extn_data_off;
998 extn_data_off += EO_ALIGN_SIZE(extn_data_itr->klass->desc->data_size);
1004 klass->extn_data_size = extn_data_off;
1007 eina_lock_take(&_eo_class_creation_lock);
1011 klass->class_id = ++_eo_classes_last_id;
1016 if (_eo_classes && _eo_classes[id - 1])
1018 ERR("A class with id %d was already defined (%s). Aborting.", id,
1019 _eo_classes[id - 1]->desc->name);
1020 eina_lock_release(&_eo_class_creation_lock);
1024 klass->class_id = id;
1029 /* FIXME: Handle errors. */
1030 size_t arrsize = _eo_classes_last_id * sizeof(*_eo_classes);
1032 tmp = realloc(_eo_classes, arrsize);
1034 /* If it's the first allocation, memset. */
1036 memset(tmp, 0, arrsize);
1039 _eo_classes[klass->class_id - 1] = klass;
1041 eina_lock_release(&_eo_class_creation_lock);
1043 EINA_MAGIC_SET(klass, EO_CLASS_EINA_MAGIC);
1045 /* Flatten the function array */
1047 const Eo_Class **mro_itr = klass->mro;
1048 for ( ; *mro_itr ; mro_itr++)
1051 /* Skip ourselves. */
1052 for ( mro_itr-- ; mro_itr > klass->mro ; mro_itr--)
1054 _dich_copy_all(klass, *mro_itr);
1058 _eo_class_base_op_init(klass);
1060 _eo_class_constructor(klass);
1067 eo_class_free(klass);
1072 eo_parent_set(Eo *obj, const Eo *parent)
1074 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, EINA_FALSE);
1076 EO_MAGIC_RETURN_VAL(parent, EO_EINA_MAGIC, EINA_FALSE);
1078 if (obj->parent == parent)
1083 if (eo_composite_is(obj))
1085 eo_composite_detach(obj, obj->parent);
1090 obj->parent->children =
1091 eina_inlist_remove(obj->parent->children, EINA_INLIST_GET(obj));
1092 eo_xunref(obj, obj->parent);
1095 obj->parent = (Eo *) parent;
1098 obj->parent->children =
1099 eina_inlist_append(obj->parent->children, EINA_INLIST_GET(obj));
1100 eo_xref(obj, obj->parent);
1109 eo_add(const Eo_Class *klass, Eo *parent)
1112 EO_MAGIC_RETURN_VAL(klass, EO_CLASS_EINA_MAGIC, NULL);
1114 if (parent) EO_MAGIC_RETURN_VAL(parent, EO_EINA_MAGIC, NULL);
1116 if (EINA_UNLIKELY(klass->desc->type != EO_CLASS_TYPE_REGULAR))
1118 ERR("Class '%s' is not instantiate-able. Aborting.", klass->desc->name);
1122 Eo *obj = calloc(1, EO_ALIGN_SIZE(sizeof(*obj)) +
1123 (klass->data_offset + EO_ALIGN_SIZE(klass->desc->data_size)) +
1124 klass->extn_data_size);
1125 EINA_MAGIC_SET(obj, EO_EINA_MAGIC);
1129 eo_parent_set(obj, parent);
1131 Eo_Kls_Itr prev_state;
1133 _eo_kls_itr_init(klass, &obj->mro_itr, EO_NOOP, &prev_state);
1134 _eo_condtor_reset(obj);
1137 do_err = !eo_do(obj, eo_constructor());
1139 if (EINA_UNLIKELY(do_err))
1141 ERR("Object of class '%s' - One of the object constructors have failed.", klass->desc->name);
1145 if (!obj->condtor_done)
1147 const Eo_Class *cur_klass = _eo_kls_itr_get(&obj->mro_itr);
1148 ERR("Object of class '%s' - Not all of the object constructors have been executed, last constructor was of class: '%s'", klass->desc->name, cur_klass->desc->name);
1151 _eo_kls_itr_end(&obj->mro_itr, &prev_state);
1157 _eo_kls_itr_end(&obj->mro_itr, &prev_state);
1158 /* Unref twice, once for the ref above, and once for the basic object ref. */
1173 eo_xref_internal(Eo *obj, const Eo *ref_obj, const char *file, int line)
1175 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, obj);
1180 Eo_Xref_Node *xref = calloc(1, sizeof(*xref));
1181 xref->ref_obj = ref_obj;
1185 obj->xrefs = eina_inlist_prepend(obj->xrefs, EINA_INLIST_GET(xref));
1196 eo_xunref(Eo *obj, const Eo *ref_obj)
1198 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1200 Eo_Xref_Node *xref = NULL;
1201 EINA_INLIST_FOREACH(obj->xrefs, xref)
1203 if (xref->ref_obj == ref_obj)
1209 obj->xrefs = eina_inlist_remove(obj->xrefs, EINA_INLIST_GET(xref));
1214 ERR("ref_obj (%p) does not reference obj (%p). Aborting unref.", ref_obj, obj);
1231 eo_ref(const Eo *_obj)
1233 Eo *obj = (Eo *) _obj;
1234 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, obj);
1236 return _eo_ref(obj);
1240 _eo_del_internal(Eo *obj)
1243 /* We need that for the event callbacks that may ref/unref. */
1246 eo_do(obj, eo_event_callback_call(EO_EV_DEL, NULL, NULL));
1248 const Eo_Class *klass = eo_class_get(obj);
1249 Eo_Kls_Itr prev_state;
1251 _eo_kls_itr_init(klass, &obj->mro_itr, EO_NOOP, &prev_state);
1252 _eo_condtor_reset(obj);
1254 do_err = eo_do(obj, eo_destructor());
1255 if (EINA_UNLIKELY(!do_err))
1257 ERR("Object of class '%s' - One of the object destructors have failed.", klass->desc->name);
1260 if (!obj->condtor_done)
1262 const Eo_Class *cur_klass = _eo_kls_itr_get(&obj->mro_itr);
1263 ERR("Object of class '%s' - Not all of the object destructors have been executed, last destructor was of class: '%s'", klass->desc->name, cur_klass->desc->name);
1265 _eo_kls_itr_end(&obj->mro_itr, &prev_state);
1266 /*FIXME: add eo_class_unref(klass) ? - just to clear the caches. */
1269 Eina_List *itr, *itr_n;
1271 EINA_LIST_FOREACH_SAFE(obj->composite_objects, itr, itr_n, emb_obj)
1273 eo_composite_detach(emb_obj, obj);
1277 while (obj->children)
1279 eo_parent_set(EINA_INLIST_CONTAINER_GET(obj->children, Eo), NULL);
1282 obj->del = EINA_TRUE;
1289 EINA_MAGIC_SET(obj, EO_FREED_EINA_MAGIC);
1296 if (--(obj->refcount) == 0)
1300 ERR("Object %p already deleted.", obj);
1304 _eo_del_internal(obj);
1307 /* If for some reason it's not empty, clear it. */
1310 WRN("obj->xrefs is not empty, possibly a bug, please report. - An error will be reported for each xref in the stack.");
1311 Eina_Inlist *nitr = obj->xrefs->next;
1312 free(EINA_INLIST_CONTAINER_GET(obj->xrefs, Eo_Xref_Node));
1317 if (!obj->manual_free)
1320 _eo_ref(obj); /* If we manual free, we keep a phantom ref. */
1325 eo_unref(const Eo *_obj)
1327 Eo *obj = (Eo *) _obj;
1328 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1334 eo_del(const Eo *obj)
1336 eo_parent_set((Eo *) obj, NULL);
1341 eo_ref_get(const Eo *obj)
1343 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, 0);
1345 return obj->refcount;
1349 eo_parent_get(const Eo *obj)
1351 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, NULL);
1357 eo_error_set_internal(const Eo *obj, const char *file, int line)
1359 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1361 ERR("Error with obj '%p' at %s:%d", obj, file, line);
1363 ((Eo *) obj)->do_error = EINA_TRUE;
1367 _eo_condtor_done(Eo *obj)
1369 if (obj->condtor_done)
1371 ERR("Object %p is already constructed at this point.", obj);
1375 obj->condtor_done = EINA_TRUE;
1379 _eo_condtor_reset(Eo *obj)
1381 obj->condtor_done = EINA_FALSE;
1384 static inline void *
1385 _eo_data_get(const Eo *obj, const Eo_Class *klass)
1387 if (EINA_LIKELY(klass->desc->data_size > 0))
1389 if (EINA_UNLIKELY(klass->desc->type == EO_CLASS_TYPE_MIXIN))
1391 Eo_Extension_Data_Offset *doff_itr =
1392 eo_class_get(obj)->extn_data_off;
1397 while (doff_itr->klass)
1399 if (doff_itr->klass == klass)
1400 return ((char *) obj) + EO_ALIGN_SIZE(sizeof(*obj)) +
1407 return ((char *) obj) + EO_ALIGN_SIZE(sizeof(*obj)) +
1416 eo_data_get(const Eo *obj, const Eo_Class *klass)
1419 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, NULL);
1422 if (!_eo_class_mro_has(obj->klass, klass))
1424 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);
1429 ret = _eo_data_get(obj, klass);
1432 if (!ret && (klass->desc->data_size == 0))
1434 ERR("Tried getting data of class '%s', but it has none..", klass->desc->name);
1444 const char *log_dom = "eo";
1445 if (_eo_init_count++ > 0)
1451 _eo_classes_last_id = EO_STATIC_IDS_LAST;
1452 _eo_log_dom = eina_log_domain_register(log_dom, EINA_COLOR_LIGHTBLUE);
1453 if (_eo_log_dom < 0)
1455 EINA_LOG_ERR("Could not register log domain: %s", log_dom);
1459 if (!eina_lock_new(&_eo_class_creation_lock))
1461 EINA_LOG_ERR("Could not init lock.");
1465 eina_magic_string_static_set(EO_EINA_MAGIC, EO_EINA_MAGIC_STR);
1466 eina_magic_string_static_set(EO_FREED_EINA_MAGIC,
1467 EO_FREED_EINA_MAGIC_STR);
1468 eina_magic_string_static_set(EO_CLASS_EINA_MAGIC,
1469 EO_CLASS_EINA_MAGIC_STR);
1478 Eo_Class **cls_itr = _eo_classes;
1480 if (--_eo_init_count > 0)
1483 for (i = 0 ; i < _eo_classes_last_id ; i++, cls_itr++)
1486 eo_class_free(*cls_itr);
1492 eina_lock_free(&_eo_class_creation_lock);
1494 eina_log_domain_unregister(_eo_log_dom);
1502 eo_composite_attach(Eo *comp_obj, Eo *parent)
1504 EO_MAGIC_RETURN(comp_obj, EO_EINA_MAGIC);
1505 EO_MAGIC_RETURN(parent, EO_EINA_MAGIC);
1507 comp_obj->composite = EINA_TRUE;
1508 eo_parent_set(comp_obj, parent);
1509 parent->composite_objects = eina_list_prepend(parent->composite_objects, comp_obj);
1513 eo_composite_detach(Eo *comp_obj, Eo *parent)
1515 EO_MAGIC_RETURN(comp_obj, EO_EINA_MAGIC);
1516 EO_MAGIC_RETURN(parent, EO_EINA_MAGIC);
1518 comp_obj->composite = EINA_FALSE;
1519 parent->composite_objects = eina_list_remove(parent->composite_objects, comp_obj);
1520 eo_parent_set(comp_obj, NULL);
1524 eo_composite_is(const Eo *comp_obj)
1526 if (!EINA_MAGIC_CHECK(comp_obj, EO_EINA_MAGIC))
1528 EINA_MAGIC_FAIL(comp_obj, EO_EINA_MAGIC);
1532 return comp_obj->composite;
1536 eo_manual_free_set(Eo *obj, Eina_Bool manual_free)
1538 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1539 obj->manual_free = manual_free;
1543 eo_manual_free(Eo *obj)
1545 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1547 if (EINA_FALSE == obj->manual_free)
1549 ERR("Tried to manually free the object %p while the option has not been set; see eo_manual_free_set for more information.", obj);
1555 ERR("Tried deleting the object %p while still referenced(%d).", obj, eo_ref_get(obj));