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_callback_remove_all(Eo *obj);
19 static void _eo_constructor(Eo *obj, const Eo_Class *klass);
20 static void _eo_destructor(Eo *obj, const Eo_Class *klass);
21 static void eo_constructor_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);
26 typedef struct _Eo_Callback_Description Eo_Callback_Description;
31 const Eo_Class **kls_itr;
34 #define EO_EINA_MAGIC 0xa186bc32 /* Nothing magical about this number. */
35 #define EO_EINA_MAGIC_STR "Eo"
36 #define EO_CLASS_EINA_MAGIC 0xa186bb32 /* Nothing magical about this number. */
37 #define EO_CLASS_EINA_MAGIC_STR "Eo Class"
39 #define EO_MAGIC_RETURN_VAL(d, magic, ret) \
41 if (!EINA_MAGIC_CHECK(d, magic)) \
43 EINA_MAGIC_FAIL(d, magic); \
48 #define EO_MAGIC_RETURN(d, magic) \
50 if (!EINA_MAGIC_CHECK(d, magic)) \
52 EINA_MAGIC_FAIL(d, magic); \
60 const Eo_Class *klass;
66 Eina_List *composite_objects;
68 Eina_Inlist *callbacks;
74 Eina_Bool construct_error:1;
78 /* Dich search, split to 0xff 0xff 0xffff */
80 #define DICH_CHAIN1_MASK (0xffff)
81 #define DICH_CHAIN_LAST_MASK (0xffff)
82 #define DICH_CHAIN1(x) (((x) >> 16) & DICH_CHAIN1_MASK)
83 #define DICH_CHAIN_LAST(x) ((x) & DICH_CHAIN_LAST_MASK)
85 #define OP_CLASS_OFFSET 16
86 #define OP_CLASS_OFFSET_GET(x) (((x) >> OP_CLASS_OFFSET) & 0xffff)
87 #define OP_CLASS_GET(op) ({ \
88 Eo_Class_Id tmp = OP_CLASS_OFFSET_GET(op); \
91 #define OP_SUB_ID_GET(op) ((op) & 0xffff)
93 #define ID_CLASS_GET(id) ({ \
94 (Eo_Class *) ((id <= _eo_classes_last_id) && (id > 0)) ? \
95 (_eo_classes[id - 1]) : NULL; \
98 #define EO_ALIGN_SIZE(size) \
99 ((size) + (sizeof(void *) - ((size) % sizeof(void *))))
101 /* Structure of Eo_Op is:
106 typedef struct _Dich_Chain1 Dich_Chain1;
110 eo_op_func_type func;
116 op_type_funcs *funcs;
122 const Eo_Class *klass;
127 const Eo_Class *klass;
129 } Eo_Extension_Data_Offset;
134 Eo_Class_Id class_id;
135 const Eo_Class *parent;
136 const Eo_Class_Description *desc;
137 Dich_Chain1 *chain; /**< The size is class_id */
138 Eina_Inlist *extensions;
140 Eo_Extension_Data_Offset *extn_data_off;
141 size_t extn_data_size;
143 const Eo_Class **mro;
145 size_t data_offset; /* < Offset of the data within object data. */
147 Eina_Bool constructed : 1;
151 _dich_chain_alloc(Dich_Chain1 *chain1, size_t num_ops)
155 chain1->funcs = calloc(num_ops, sizeof(*(chain1->funcs)));
160 _dich_copy_all(Eo_Class *dst, const Eo_Class *src)
162 if (!src->chain) return;
166 dst->chain = calloc(dst->class_id, sizeof(*dst->chain));
170 const Dich_Chain1 *sc1 = src->chain;
171 Dich_Chain1 *dc1 = dst->chain;
172 for (i = 0 ; i < src->class_id ; i++, sc1++, dc1++)
177 const Eo_Class *op_klass = ID_CLASS_GET(i + 1);
178 size_t num_ops = op_klass->desc->ops.count;
179 _dich_chain_alloc(dc1, num_ops);
181 const op_type_funcs *sf = sc1->funcs;
182 op_type_funcs *df = dc1->funcs;
183 for (j = 0 ; j < num_ops ; j++, df++, sf++)
187 memcpy(df, sf, sizeof(*df));
194 static inline const op_type_funcs *
195 _dich_func_get(const Eo_Class *klass, Eo_Op op)
197 if (!klass->chain) return NULL;
199 size_t idx1 = DICH_CHAIN1(op) - 1;
200 if (idx1 >= klass->class_id) return NULL;
201 const Dich_Chain1 *chain1 = &klass->chain[idx1];
202 if (!chain1->funcs) return NULL;
204 size_t idxl = DICH_CHAIN_LAST(op);
205 /* num_ops is calculated from the class. */
206 const Eo_Class *op_klass = ID_CLASS_GET(idx1 + 1);
207 if (!op_klass || (idxl >= op_klass->desc->ops.count))
210 return &chain1->funcs[idxl];
214 _dich_func_set(Eo_Class *klass, Eo_Op op, eo_op_func_type func)
216 const Eo_Class *op_klass = OP_CLASS_GET(op);
219 /* Verify op is valid. */
222 /* num_ops is calculated from the class. */
223 num_ops = op_klass->desc->ops.count;
224 if (DICH_CHAIN_LAST(op) >= num_ops)
226 ERR("OP %x is too big for the domain '%s', expected value < %x.",
227 op, op_klass->desc->name, op_klass->desc->ops.count);
233 ERR("OP %x is from an illegal class.", op);
239 klass->chain = calloc(klass->class_id, sizeof(*klass->chain));
242 size_t idx1 = DICH_CHAIN1(op) - 1;
243 Dich_Chain1 *chain1 = &klass->chain[idx1];
244 _dich_chain_alloc(chain1, num_ops);
245 chain1->funcs[DICH_CHAIN_LAST(op)].func = func;
246 chain1->funcs[DICH_CHAIN_LAST(op)].src = klass;
250 _dich_func_clean_all(Eo_Class *klass)
253 Dich_Chain1 *chain1 = klass->chain;
258 for (i = 0 ; i < klass->class_id ; i++, chain1++)
269 static const Eo_Op_Description noop_desc =
270 EO_OP_DESCRIPTION(EO_NOOP, "", "No operation.");
272 static const Eo_Op_Description *
273 _eo_op_id_desc_get(Eo_Op op)
275 const Eo_Class *klass = OP_CLASS_GET(op);
276 Eo_Op sub_id = OP_SUB_ID_GET(op);
281 if (klass && (sub_id < klass->desc->ops.count))
282 return klass->desc->ops.descs + sub_id;
288 _eo_op_id_name_get(Eo_Op op)
290 const Eo_Op_Description *desc = _eo_op_id_desc_get(op);
291 return (desc) ? desc->name : NULL;
295 _eo_kls_itr_init(Eo *obj, Eo_Op op, Eo_Kls_Itr *prev_state)
297 prev_state->op = obj->mro_itr.op;
298 prev_state->kls_itr = obj->mro_itr.kls_itr;
300 /* If we are in a constructor/destructor or we changed an op - init. */
301 if ((op == EO_NOOP) || (obj->mro_itr.op != op))
303 obj->mro_itr.op = op;
304 obj->mro_itr.kls_itr = obj->klass->mro;
309 _eo_kls_itr_end(Eo *obj, Eo_Kls_Itr *prev_state)
311 if (obj->mro_itr.op != prev_state->op)
313 obj->mro_itr.op = prev_state->op;
314 obj->mro_itr.kls_itr = prev_state->kls_itr;
318 static inline const Eo_Class *
319 _eo_kls_itr_get(Eo *obj)
321 return (obj->mro_itr.kls_itr) ? *(obj->mro_itr.kls_itr) : NULL;
324 static inline const Eo_Class *
325 _eo_kls_itr_next(Eo *obj, Eo_Op op)
327 if (obj->mro_itr.op != op)
329 Eo_Op node_op = obj->mro_itr.op;
330 ERR("Called with op %d ('%s') while expecting: %d ('%s'). This probaly means you called eo_*_super functions from a wrong place.",
331 op, _eo_op_id_name_get(op),
332 node_op, _eo_op_id_name_get(node_op));
336 const Eo_Class **kls_itr = obj->mro_itr.kls_itr;
341 const op_type_funcs *fsrc = _dich_func_get(*kls_itr, op);
343 while (*kls_itr && (*(kls_itr++) != fsrc->src))
351 obj->mro_itr.kls_itr = kls_itr;
360 static inline Eina_Bool
361 _eo_kls_itr_reached_end(const Eo *obj)
363 const Eo_Class **kls_itr = obj->mro_itr.kls_itr;
364 return !(*kls_itr && *(kls_itr + 1));
368 _eo_op_internal(Eo *obj, Eina_Bool constant, Eo_Op op, va_list *p_list)
370 const Eo_Class *klass;
371 Eina_Bool ret = EINA_FALSE;
373 const Eo_Op_Description *op_desc = _eo_op_id_desc_get(op);
376 ((constant == EINA_TRUE) && (op_desc->constant == EINA_FALSE)))
378 ERR("Tried calling non-const or non-existant op '%s' (%d) from a const (query) function.", (op_desc) ? op_desc->name : NULL, op);
382 Eo_Kls_Itr prev_state;
383 _eo_kls_itr_init(obj, op, &prev_state);
384 klass = _eo_kls_itr_get(obj);
387 const op_type_funcs *func = _dich_func_get(klass, op);
389 if (func && func->func)
391 func->func(obj, _eo_data_get(obj, func->src), p_list);
397 /* Try composite objects */
401 EINA_LIST_FOREACH(obj->composite_objects, itr, emb_obj)
403 if (_eo_op_internal(emb_obj, constant, op, p_list))
412 _eo_kls_itr_end(obj, &prev_state);
417 eo_do_internal(Eo *obj, Eina_Bool constant, ...)
419 Eina_Bool ret = EINA_TRUE;
423 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, EINA_FALSE);
427 va_start(p_list, constant);
429 op = va_arg(p_list, Eo_Op);
432 if (!_eo_op_internal(obj, constant, op, &p_list))
434 const Eo_Class *op_klass = OP_CLASS_GET(op);
435 const char *_dom_name = (op_klass) ? op_klass->desc->name : NULL;
436 ERR("Can't find func for op %x ('%s' of domain '%s') for class '%s'. Aborting.",
437 op, _eo_op_id_name_get(op), _dom_name,
438 obj->klass->desc->name);
442 op = va_arg(p_list, Eo_Op);
452 eo_do_super_internal(Eo *obj, Eina_Bool constant, Eo_Op op, ...)
454 const Eo_Class *obj_klass;
455 Eina_Bool ret = EINA_TRUE;
457 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, EINA_FALSE);
459 /* Advance the kls itr. */
460 obj_klass = _eo_kls_itr_next(obj, op);
462 if (obj->mro_itr.op != op)
465 va_start(p_list, op);
466 if (!_eo_op_internal(obj, constant, op, &p_list))
468 const Eo_Class *op_klass = OP_CLASS_GET(op);
469 const char *_dom_name = (op_klass) ? op_klass->desc->name : NULL;
470 ERR("Can't find func for op %x ('%s' of domain '%s') for class '%s'. Aborting.",
471 op, _eo_op_id_name_get(op), _dom_name,
472 (obj_klass) ? obj_klass->desc->name : NULL);
480 EAPI const Eo_Class *
481 eo_class_get(const Eo *obj)
483 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, EINA_FALSE);
489 eo_class_name_get(const Eo_Class *klass)
491 EO_MAGIC_RETURN_VAL(klass, EO_CLASS_EINA_MAGIC, NULL);
493 return klass->desc->name;
497 _eo_class_base_op_init(Eo_Class *klass)
499 const Eo_Class_Description *desc = klass->desc;
500 if (!desc || !desc->ops.base_op_id)
503 /* FIXME: Depends on values defined above! */
504 *(desc->ops.base_op_id) = klass->class_id << OP_CLASS_OFFSET;
509 _eo_class_mro_has(const Eo_Class *klass, const Eo_Class *find)
511 const Eo_Class **itr;
512 for (itr = klass->mro ; *itr ; itr++)
525 _eo_class_mro_add(Eina_List *mro, const Eo_Class *klass)
527 Eina_List *extn_pos = NULL;
528 Eina_Bool check_consistency = !mro;
532 mro = eina_list_append(mro, klass);
534 /* Recursively add extenions. */
536 Eo_Extension_Node *extn;
537 EINA_INLIST_FOREACH(klass->extensions, extn)
539 mro = _eo_class_mro_add(mro, extn->klass);
540 /* Not possible: if (!mro) return NULL; */
542 if (check_consistency)
544 extn_pos = eina_list_append(extn_pos, eina_list_last(mro));
549 /* Check if we can create a consistent mro. We only do it for the class
550 * we are working on (i.e no parents). */
551 if (check_consistency)
553 Eo_Extension_Node *extn;
555 Eina_List *itr = extn_pos;
556 EINA_INLIST_FOREACH(klass->extensions, extn)
558 /* Get the first one after the extension. */
559 Eina_List *extn_list = eina_list_next(eina_list_data_get(itr));
561 /* If we found the extension again. */
562 if (eina_list_data_find_list(extn_list, extn->klass))
565 ERR("Cannot create a consistent method resolution order for class '%s' because of '%s'.", klass->desc->name, extn->klass->desc->name);
569 itr = eina_list_next(itr);
574 mro = _eo_class_mro_add(mro, klass->parent);
580 _eo_class_mro_init(Eo_Class *klass)
582 Eina_List *mro = NULL;
584 DBG("Started creating MRO for class '%s'", klass->desc->name);
585 mro = _eo_class_mro_add(mro, klass);
590 /* Remove duplicates and make them the right order. */
592 Eina_List *itr1, *itr2, *itr2n;
594 itr1 = eina_list_last(mro);
597 itr2 = eina_list_prev(itr1);
601 itr2n = eina_list_prev(itr2);
603 if (eina_list_data_get(itr1) == eina_list_data_get(itr2))
605 mro = eina_list_remove_list(mro, itr2);
611 itr1 = eina_list_prev(itr1);
615 /* Copy the mro and free the list. */
617 const Eo_Class *kls_itr;
618 const Eo_Class **mro_itr;
619 klass->mro = calloc(sizeof(*klass->mro), eina_list_count(mro) + 1);
621 mro_itr = klass->mro;
623 EINA_LIST_FREE(mro, kls_itr)
625 *(mro_itr++) = kls_itr;
627 DBG("Added '%s' to MRO", kls_itr->desc->name);
632 DBG("Finished creating MRO for class '%s'", klass->desc->name);
638 _eo_class_constructor(Eo_Class *klass)
640 if (klass->constructed)
643 klass->constructed = EINA_TRUE;
645 if (klass->desc->class_constructor)
646 klass->desc->class_constructor(klass);
650 eo_class_funcs_set(Eo_Class *klass, const Eo_Op_Func_Description *func_descs)
652 EO_MAGIC_RETURN(klass, EO_CLASS_EINA_MAGIC);
654 const Eo_Op_Func_Description *itr;
658 for ( ; itr->op != 0 ; itr++)
660 const Eo_Op_Description *op_desc = _eo_op_id_desc_get(itr->op);
662 if (EINA_LIKELY(!op_desc || (itr->constant == op_desc->constant)))
664 _dich_func_set(klass, itr->op, itr->func);
668 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);
675 eo_class_free(Eo_Class *klass)
677 if (klass->constructed)
679 if (klass->desc->class_destructor)
680 klass->desc->class_destructor(klass);
682 _dich_func_clean_all(klass);
687 Eo_Extension_Node *extn = NULL;
688 EINA_INLIST_FOREACH_SAFE(klass->extensions, itrn, extn)
697 if (klass->extn_data_off)
698 free(klass->extn_data_off);
705 _eo_class_check_op_descs(const Eo_Class *klass)
707 const Eo_Class_Description *desc = klass->desc;
708 const Eo_Op_Description *itr;
711 if (desc->ops.count > 0)
713 if (!desc->ops.base_op_id)
715 ERR("Class '%s' has a non-zero ops count, but base_id is NULL.",
720 if (!desc->ops.descs)
722 ERR("Class '%s' has a non-zero ops count, but there are no descs.",
728 itr = desc->ops.descs;
729 for (i = 0 ; i < desc->ops.count ; i++, itr++)
731 if (itr->sub_op != i)
735 ERR("Wrong order in Ops description for class '%s'. Expected %d and got %d", desc->name, i, itr->sub_op);
739 ERR("Found too few Ops description for class '%s'. Expected %d descriptions, but found %d.", desc->name, desc->ops.count, i);
745 if (itr && itr->name)
747 ERR("Found extra Ops description for class '%s'. Expected %d descriptions, but found more.", desc->name, desc->ops.count);
754 EAPI const Eo_Class *
755 eo_class_new(const Eo_Class_Description *desc, const Eo_Class *parent, ...)
760 if (parent && !EINA_MAGIC_CHECK(parent, EO_CLASS_EINA_MAGIC))
762 EINA_MAGIC_FAIL(parent, EO_CLASS_EINA_MAGIC);
766 va_start(p_list, parent);
768 EINA_SAFETY_ON_NULL_RETURN_VAL(desc, NULL);
769 EINA_SAFETY_ON_NULL_RETURN_VAL(desc->name, NULL);
771 /* Check restrictions on Interface types. */
772 if (desc->type == EO_CLASS_TYPE_INTERFACE)
774 EINA_SAFETY_ON_FALSE_RETURN_VAL(!desc->constructor, NULL);
775 EINA_SAFETY_ON_FALSE_RETURN_VAL(!desc->destructor, NULL);
776 EINA_SAFETY_ON_FALSE_RETURN_VAL(!desc->class_constructor, NULL);
777 EINA_SAFETY_ON_FALSE_RETURN_VAL(!desc->class_destructor, NULL);
778 EINA_SAFETY_ON_FALSE_RETURN_VAL(!desc->data_size, NULL);
781 klass = calloc(1, sizeof(Eo_Class));
782 klass->parent = parent;
784 /* Handle class extensions */
786 Eo_Class *extn = NULL;
788 extn = va_arg(p_list, Eo_Class *);
791 switch (extn->desc->type)
793 case EO_CLASS_TYPE_REGULAR:
794 case EO_CLASS_TYPE_REGULAR_NO_INSTANT:
795 /* Use it like an interface. */
796 case EO_CLASS_TYPE_INTERFACE:
798 case EO_CLASS_TYPE_MIXIN:
800 Eo_Extension_Node *node = calloc(1, sizeof(*node));
803 eina_inlist_append(klass->extensions,
804 EINA_INLIST_GET(node));
809 extn = va_arg(p_list, Eo_Class *);
815 /* Handle the inheritance */
818 /* Verify the inheritance is allowed. */
819 switch (klass->desc->type)
821 case EO_CLASS_TYPE_REGULAR:
822 case EO_CLASS_TYPE_REGULAR_NO_INSTANT:
823 if ((klass->parent->desc->type != EO_CLASS_TYPE_REGULAR) &&
824 (klass->parent->desc->type != EO_CLASS_TYPE_REGULAR_NO_INSTANT))
826 ERR("Regular classes ('%s') aren't allowed to inherit from non-regular classes ('%s').", klass->desc->name, klass->parent->desc->name);
830 case EO_CLASS_TYPE_INTERFACE:
831 case EO_CLASS_TYPE_MIXIN:
832 if ((klass->parent->desc->type != EO_CLASS_TYPE_INTERFACE) &&
833 (klass->parent->desc->type != EO_CLASS_TYPE_MIXIN))
835 ERR("Non-regular classes ('%s') aren't allowed to inherit from regular classes ('%s').", klass->desc->name, klass->parent->desc->name);
842 /* Update the current offset. */
843 /* FIXME: Make sure this alignment is enough. */
844 klass->data_offset = klass->parent->data_offset +
845 EO_ALIGN_SIZE(klass->parent->desc->data_size);
848 if (!_eo_class_check_op_descs(klass))
853 if (!_eo_class_mro_init(klass))
858 /* create MIXIN offset table. */
860 const Eo_Class **mro_itr = klass->mro;
861 Eo_Extension_Data_Offset *extn_data_itr;
863 size_t extn_data_off = klass->data_offset +
864 EO_ALIGN_SIZE(klass->desc->data_size);
866 /* FIXME: Make faster... */
869 if (((*mro_itr)->desc->type == EO_CLASS_TYPE_MIXIN) &&
870 ((*mro_itr)->desc->data_size > 0))
877 klass->extn_data_off = calloc(extn_num + 1,
878 sizeof(*klass->extn_data_off));
880 extn_data_itr = klass->extn_data_off;
881 mro_itr = klass->mro;
884 if (((*mro_itr)->desc->type == EO_CLASS_TYPE_MIXIN) &&
885 ((*mro_itr)->desc->data_size > 0))
887 extn_data_itr->klass = *mro_itr;
888 extn_data_itr->offset = extn_data_off;
890 extn_data_off += EO_ALIGN_SIZE(extn_data_itr->klass->desc->data_size);
896 klass->extn_data_size = extn_data_off;
899 eina_lock_take(&_eo_class_creation_lock);
900 klass->class_id = ++_eo_classes_last_id;
902 /* FIXME: Handle errors. */
904 tmp = realloc(_eo_classes, _eo_classes_last_id * sizeof(*_eo_classes));
906 _eo_classes[klass->class_id - 1] = klass;
908 eina_lock_release(&_eo_class_creation_lock);
910 EINA_MAGIC_SET(klass, EO_CLASS_EINA_MAGIC);
912 /* Flatten the function array */
914 const Eo_Class **mro_itr = klass->mro;
915 for ( ; *mro_itr ; mro_itr++)
918 for ( mro_itr-- ; mro_itr >= klass->mro ; mro_itr--)
920 _dich_copy_all(klass, *mro_itr);
924 _eo_class_base_op_init(klass);
926 _eo_class_constructor(klass);
933 eo_class_free(klass);
938 eo_add(const Eo_Class *klass, Eo *parent)
940 EO_MAGIC_RETURN_VAL(klass, EO_CLASS_EINA_MAGIC, NULL);
942 if (parent) EO_MAGIC_RETURN_VAL(parent, EO_EINA_MAGIC, NULL);
944 if (EINA_UNLIKELY(klass->desc->type != EO_CLASS_TYPE_REGULAR))
946 ERR("Class '%s' is not instantiate-able. Aborting.", klass->desc->name);
950 Eo *obj = calloc(1, EO_ALIGN_SIZE(sizeof(*obj)) +
951 (klass->data_offset + EO_ALIGN_SIZE(klass->desc->data_size)) +
952 klass->extn_data_size);
954 obj->parent = parent;
958 Eo_Kls_Itr prev_state;
960 _eo_kls_itr_init(obj, EO_NOOP, &prev_state);
961 eo_constructor_error_unset(obj);
963 EINA_MAGIC_SET(obj, EO_EINA_MAGIC);
965 _eo_constructor(obj, klass);
967 if (EINA_UNLIKELY(eo_constructor_error_get(obj)))
969 ERR("Type '%s' - One of the object constructors have failed.", klass->desc->name);
973 if (EINA_UNLIKELY(!_eo_kls_itr_reached_end(obj)))
975 ERR("Type '%s' - Not all of the object constructors have been executed.", klass->desc->name);
978 _eo_kls_itr_end(obj, &prev_state);
984 _eo_kls_itr_end(obj, &prev_state);
985 /* Unref twice, once for the ref above, and once for the basic object ref. */
1000 eo_xref_internal(Eo *obj, const Eo *ref_obj, const char *file, int line)
1002 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, obj);
1007 Eo_Xref_Node *xref = calloc(1, sizeof(*xref));
1008 xref->ref_obj = ref_obj;
1012 /* FIXME: Make it sorted. */
1013 obj->xrefs = eina_inlist_prepend(obj->xrefs, EINA_INLIST_GET(xref));
1024 eo_xunref(Eo *obj, const Eo *ref_obj)
1026 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1028 Eo_Xref_Node *xref = NULL;
1029 EINA_INLIST_FOREACH(obj->xrefs, xref)
1031 if (xref->ref_obj == ref_obj)
1037 obj->xrefs = eina_inlist_remove(obj->xrefs, EINA_INLIST_GET(xref));
1042 ERR("ref_obj (%p) does not reference obj (%p). Aborting unref.", ref_obj, obj);
1061 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, obj);
1063 return _eo_ref(obj);
1067 _eo_del_internal(Eo *obj)
1071 /* We need that for the event callbacks that may ref/unref. */
1074 eo_event_callback_call(obj, EO_EV_DEL, NULL);
1075 obj->delete = EINA_TRUE;
1079 const Eo_Class *klass = eo_class_get(obj);
1080 Eo_Kls_Itr prev_state;
1082 _eo_kls_itr_init(obj, EO_NOOP, &prev_state);
1083 eo_constructor_error_unset(obj);
1084 _eo_destructor(obj, klass);
1085 if (eo_constructor_error_get(obj))
1087 ERR("Type '%s' - One of the object destructors have failed.", klass->desc->name);
1090 if (!_eo_kls_itr_reached_end(obj))
1092 ERR("Type '%s' - Not all of the object destructors have been executed.", klass->desc->name);
1094 _eo_kls_itr_end(obj, &prev_state);
1095 /*FIXME: add eo_class_unref(klass) ? - just to clear the caches. */
1097 Eina_List *itr, *itr_n;
1099 EINA_LIST_FOREACH_SAFE(obj->composite_objects, itr, itr_n, emb_obj)
1101 eo_composite_object_detach(obj, emb_obj);
1108 if (--(obj->refcount) == 0)
1110 _eo_del_internal(obj);
1111 /* We need that for the event callbacks that may ref/unref. */
1114 eo_event_callback_call(obj, EO_EV_FREE, NULL);
1119 /* If for some reason it's not empty, clear it. */
1122 WRN("obj->xrefs is not empty, possibly a bug, please report. - An error will be reported for each xref in the stack.");
1123 Eina_Inlist *nitr = obj->xrefs->next;
1124 free(EINA_INLIST_CONTAINER_GET(obj->xrefs, Eo_Xref_Node));
1129 _eo_callback_remove_all(obj);
1138 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1144 eo_ref_get(const Eo *obj)
1146 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, 0);
1148 return obj->refcount;
1154 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1156 _eo_del_internal(obj);
1161 eo_parent_get(const Eo *obj)
1163 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, NULL);
1169 eo_constructor_error_set(Eo *obj)
1171 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1173 obj->construct_error = EINA_TRUE;
1177 eo_constructor_error_unset(Eo *obj)
1179 obj->construct_error = EINA_FALSE;
1183 eo_constructor_error_get(const Eo *obj)
1185 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, EINA_TRUE);
1187 return obj->construct_error;
1191 _eo_constructor_default(Eo *obj)
1193 eo_constructor_super(obj);
1197 _eo_destructor_default(Eo *obj)
1199 eo_destructor_super(obj);
1203 _eo_constructor(Eo *obj, const Eo_Class *klass)
1208 if (klass->desc->constructor)
1209 klass->desc->constructor(obj, _eo_data_get(obj, klass));
1211 _eo_constructor_default(obj);
1215 _eo_destructor(Eo *obj, const Eo_Class *klass)
1220 if (klass->desc->destructor)
1221 klass->desc->destructor(obj, _eo_data_get(obj, klass));
1223 _eo_destructor_default(obj);
1227 eo_constructor_super(Eo *obj)
1229 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1231 _eo_constructor(obj, _eo_kls_itr_next(obj, EO_NOOP));
1235 eo_destructor_super(Eo *obj)
1237 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1239 _eo_destructor(obj, _eo_kls_itr_next(obj, EO_NOOP));
1242 static inline void *
1243 _eo_data_get(const Eo *obj, const Eo_Class *klass)
1245 if (EINA_LIKELY(klass->desc->data_size > 0))
1247 if (EINA_UNLIKELY(klass->desc->type == EO_CLASS_TYPE_MIXIN))
1249 Eo_Extension_Data_Offset *doff_itr =
1250 eo_class_get(obj)->extn_data_off;
1255 while (doff_itr->klass)
1257 if (doff_itr->klass == klass)
1258 return ((char *) obj) + EO_ALIGN_SIZE(sizeof(*obj)) +
1265 return ((char *) obj) + EO_ALIGN_SIZE(sizeof(*obj)) +
1274 eo_data_get(const Eo *obj, const Eo_Class *klass)
1277 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, NULL);
1280 if (!_eo_class_mro_has(obj->klass, klass))
1282 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);
1287 ret = _eo_data_get(obj, klass);
1289 if (!ret && (klass->desc->data_size == 0))
1291 ERR("Tried getting data of class '%s', but it has none..", klass->desc->name);
1300 const char *log_dom = "eo";
1301 if (_eo_init_count++ > 0)
1307 _eo_classes_last_id = 0;
1308 _eo_log_dom = eina_log_domain_register(log_dom, EINA_COLOR_LIGHTBLUE);
1309 if (_eo_log_dom < 0)
1311 EINA_LOG_ERR("Could not register log domain: %s", log_dom);
1315 if (!eina_lock_new(&_eo_class_creation_lock))
1317 EINA_LOG_ERR("Could not init lock.");
1321 eina_magic_string_static_set(EO_EINA_MAGIC, EO_EINA_MAGIC_STR);
1322 eina_magic_string_static_set(EO_CLASS_EINA_MAGIC,
1323 EO_CLASS_EINA_MAGIC_STR);
1332 Eo_Class **cls_itr = _eo_classes;
1334 if (--_eo_init_count > 0)
1337 for (i = 0 ; i < _eo_classes_last_id ; i++, cls_itr++)
1340 eo_class_free(*cls_itr);
1346 eina_lock_free(&_eo_class_creation_lock);
1348 eina_log_domain_unregister(_eo_log_dom);
1356 eo_composite_object_attach(Eo *obj, Eo *emb_obj)
1358 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1359 EO_MAGIC_RETURN(emb_obj, EO_EINA_MAGIC);
1361 eo_xref(emb_obj, obj);
1362 obj->composite_objects = eina_list_prepend(obj->composite_objects, emb_obj);
1366 eo_composite_object_detach(Eo *obj, Eo *emb_obj)
1368 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1369 EO_MAGIC_RETURN(emb_obj, EO_EINA_MAGIC);
1371 obj->composite_objects = eina_list_remove(obj->composite_objects, emb_obj);
1372 eo_xunref(emb_obj, obj);
1376 eo_composite_is(Eo *emb_obj)
1378 if (!EINA_MAGIC_CHECK(emb_obj, EO_EINA_MAGIC))
1380 EINA_MAGIC_FAIL(emb_obj, EO_EINA_MAGIC);
1384 Eo *obj = eo_parent_get(emb_obj);
1391 EINA_LIST_FOREACH(obj->composite_objects, itr, tmp)
1401 struct _Eo_Callback_Description
1404 const Eo_Event_Description *event;
1407 Eo_Callback_Priority priority;
1408 Eina_Bool delete_me : 1;
1411 /* Actually remove, doesn't care about walking list, or delete_me */
1413 _eo_callback_remove(Eo *obj, Eo_Callback_Description *cb)
1415 obj->callbacks = eina_inlist_remove(obj->callbacks,
1416 EINA_INLIST_GET(cb));
1420 /* Actually remove, doesn't care about walking list, or delete_me */
1422 _eo_callback_remove_all(Eo *obj)
1425 Eo_Callback_Description *cb = NULL;
1426 EINA_INLIST_FOREACH_SAFE(obj->callbacks, initr, cb)
1428 _eo_callback_remove(obj, cb);
1433 _eo_callbacks_clear(Eo *obj)
1436 Eo_Callback_Description *cb = NULL;
1438 /* Abort if we are currently walking the list. */
1439 if (obj->walking_list > 0)
1442 EINA_INLIST_FOREACH_SAFE(obj->callbacks, itn, cb)
1446 _eo_callback_remove(obj, cb);
1452 _callback_priority_cmp(const void *_a, const void *_b)
1454 const Eo_Callback_Description *a, *b;
1455 a = (const Eo_Callback_Description *) _a;
1456 b = (const Eo_Callback_Description *) _b;
1457 if (a->priority < b->priority)
1464 eo_event_callback_priority_add(Eo *obj,
1465 const Eo_Event_Description *desc,
1466 Eo_Callback_Priority priority,
1470 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, EINA_FALSE);
1472 Eo_Callback_Description *cb = calloc(1, sizeof(*cb));
1475 cb->func_data = (void *) data;
1476 cb->priority = priority;
1477 obj->callbacks = eina_inlist_sorted_insert(obj->callbacks,
1478 EINA_INLIST_GET(cb), _callback_priority_cmp);
1480 eo_event_callback_call(obj, EO_EV_CALLBACK_ADD, desc);
1486 eo_event_callback_del_lazy(Eo *obj, const Eo_Event_Description *desc, Eo_Event_Cb func)
1488 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, NULL);
1491 Eo_Callback_Description *cb;
1492 EINA_INLIST_FOREACH(obj->callbacks, cb)
1494 if ((cb->event == desc) && (cb->func == func))
1498 data = cb->func_data;
1499 cb->delete_me = EINA_TRUE;
1500 _eo_callbacks_clear(obj);
1509 eo_event_callback_call(obj, EO_EV_CALLBACK_DEL, desc);
1514 eo_event_callback_del(Eo *obj, const Eo_Event_Description *desc, Eo_Event_Cb func, const void *user_data)
1516 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, NULL);
1519 Eo_Callback_Description *cb;
1520 EINA_INLIST_FOREACH(obj->callbacks, cb)
1522 if ((cb->event == desc) && (cb->func == func) &&
1523 (cb->func_data == user_data))
1527 data = cb->func_data;
1528 cb->delete_me = EINA_TRUE;
1529 _eo_callbacks_clear(obj);
1538 eo_event_callback_call(obj, EO_EV_CALLBACK_DEL, desc);
1543 eo_event_callback_call(Eo *obj, const Eo_Event_Description *desc,
1544 const void *event_info)
1546 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, EINA_FALSE);
1548 Eina_Bool ret = EINA_TRUE;
1549 Eo_Callback_Description *cb;
1552 obj->walking_list++;
1554 EINA_INLIST_FOREACH(obj->callbacks, cb)
1556 if (!cb->delete_me && (cb->event == desc))
1558 /* Abort callback calling if the func says so. */
1559 if (!cb->func((void *) cb->func_data, obj, desc,
1560 (void *) event_info))
1569 obj->walking_list--;
1570 _eo_callbacks_clear(obj);
1577 _eo_event_forwarder_callback(void *data, Eo *obj, const Eo_Event_Description *desc, void *event_info)
1580 Eo *new_obj = (Eo *) data;
1581 return eo_event_callback_call(new_obj, desc, event_info);
1584 /* FIXME: Change default priority? Maybe call later? */
1586 eo_event_callback_forwarder_add(Eo *obj, const Eo_Event_Description *desc, Eo *new_obj)
1588 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, EINA_FALSE);
1589 EO_MAGIC_RETURN_VAL(new_obj, EO_EINA_MAGIC, EINA_FALSE);
1591 return eo_event_callback_add(obj, desc, _eo_event_forwarder_callback, new_obj);
1595 eo_event_callback_forwarder_del(Eo *obj, const Eo_Event_Description *desc, Eo *new_obj)
1597 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, EINA_FALSE);
1598 EO_MAGIC_RETURN_VAL(new_obj, EO_EINA_MAGIC, EINA_FALSE);
1600 eo_event_callback_del(obj, desc, _eo_event_forwarder_callback, new_obj);