4 #include "eo_private.h"
8 typedef int 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);
23 typedef struct _Eo_Callback_Description Eo_Callback_Description;
28 const Eo_Class **kls_itr;
31 #define EO_EINA_MAGIC 0xa186bc32 /* Nothing magical about this number. */
32 #define EO_EINA_MAGIC_STR "Eo"
33 #define EO_CLASS_EINA_MAGIC 0xa186bb32 /* Nothing magical about this number. */
34 #define EO_CLASS_EINA_MAGIC_STR "Eo Class"
36 #define EO_MAGIC_RETURN_VAL(d, magic, ret) \
38 if (!EINA_MAGIC_CHECK(d, magic)) \
40 EINA_MAGIC_FAIL(d, magic); \
45 #define EO_MAGIC_RETURN(d, magic) \
47 if (!EINA_MAGIC_CHECK(d, magic)) \
49 EINA_MAGIC_FAIL(d, magic); \
57 const Eo_Class *klass;
63 Eina_List *composite_objects;
65 Eina_Inlist *callbacks;
71 Eina_Bool construct_error:1;
75 /* Dich search, split to 0xff 0xff 0xffff */
77 #define DICH_CHAIN1_MASK (0xff)
78 #define DICH_CHAIN2_MASK (0xff)
79 #define DICH_CHAIN_LAST_MASK (0xffff)
80 #define DICH_CHAIN1_SIZE (DICH_CHAIN1_MASK + 1)
81 #define DICH_CHAIN2_SIZE (DICH_CHAIN2_MASK + 1)
82 #define DICH_CHAIN_LAST_SIZE (DICH_CHAIN_LAST_MASK + 1)
83 #define DICH_CHAIN1(x) (((x) >> 24) & DICH_CHAIN1_MASK)
84 #define DICH_CHAIN2(x) (((x) >> 16) & DICH_CHAIN2_MASK)
85 #define DICH_CHAIN_LAST(x) ((x) & DICH_CHAIN_LAST_MASK)
87 #define OP_CLASS_OFFSET 16
88 #define OP_CLASS_OFFSET_GET(x) (((x) >> OP_CLASS_OFFSET) & 0xffff)
89 #define OP_CLASS_GET(op) ({ \
90 Eo_Class_Id tmp = OP_CLASS_OFFSET_GET(op); \
91 (Eo_Class *) ((tmp <= _eo_classes_last_id) && (tmp > 0)) ? \
92 (_eo_classes[tmp - 1]) : NULL; \
94 #define OP_SUB_ID_GET(op) ((op) & 0xffff)
96 #define EO_ALIGN_SIZE(size) \
97 ((size) + (sizeof(void *) - ((size) % sizeof(void *))))
99 /* Structure of Eo_Op is:
104 typedef struct _Dich_Chain1 Dich_Chain1;
108 eo_op_func_type func;
113 op_type_funcs *funcs;
124 const Eo_Class *klass;
129 const Eo_Class *klass;
131 } Eo_Extension_Data_Offset;
136 Eo_Class_Id class_id;
137 const Eo_Class *parent;
138 const Eo_Class_Description *desc;
139 Dich_Chain1 chain[DICH_CHAIN1_SIZE];
140 Eina_Inlist *extensions;
142 Eo_Extension_Data_Offset *extn_data_off;
143 size_t extn_data_size;
145 const Eo_Class **mro;
147 size_t data_offset; /* < Offset of the data within object data. */
149 Eina_Bool constructed : 1;
152 static inline eo_op_func_type
153 dich_func_get(const Eo_Class *klass, Eo_Op op)
155 const Dich_Chain1 *chain1 = &klass->chain[DICH_CHAIN1(op)];
156 if (!chain1) return NULL;
157 if (!chain1->chain) return NULL;
158 Dich_Chain2 *chain2 = &chain1->chain[DICH_CHAIN2(op)];
159 if (!chain2) return NULL;
160 if (!chain2->funcs) return NULL;
162 /* num_ops is calculated from the class. */
163 const Eo_Class *op_klass = OP_CLASS_GET(op);
164 if (!op_klass || (DICH_CHAIN_LAST(op) >= op_klass->desc->ops.count))
167 return chain2->funcs[DICH_CHAIN_LAST(op)].func;
171 dich_func_set(Eo_Class *klass, Eo_Op op, eo_op_func_type func)
173 const Eo_Class *op_klass = OP_CLASS_GET(op);
176 /* Verify op is valid. */
179 /* num_ops is calculated from the class. */
180 num_ops = op_klass->desc->ops.count;
181 if (DICH_CHAIN_LAST(op) >= num_ops)
183 ERR("OP %x is too big for the domain '%s', expected value < %x.",
184 op, op_klass->desc->name, op_klass->desc->ops.count);
190 ERR("OP %x is from an illegal class.", op);
194 Dich_Chain1 *chain1 = &klass->chain[DICH_CHAIN1(op)];
197 chain1->chain = calloc(DICH_CHAIN2_SIZE, sizeof(*(chain1->chain)));
200 Dich_Chain2 *chain2 = &chain1->chain[DICH_CHAIN2(op)];
203 chain2->funcs = calloc(num_ops, sizeof(*(chain2->funcs)));
206 chain2->funcs[DICH_CHAIN_LAST(op)].func = func;
210 dich_func_clean_all(Eo_Class *klass)
213 Dich_Chain1 *chain1 = klass->chain;
215 for (i = 0 ; i < DICH_CHAIN1_SIZE ; i++, chain1++)
218 Dich_Chain2 *chain2 = chain1->chain;
223 for (j = 0 ; j < DICH_CHAIN2_SIZE ; j++, chain2++)
228 chain1->chain = NULL;
234 static const Eo_Op_Description noop_desc =
235 EO_OP_DESCRIPTION(EO_NOOP, "", "No operation.");
237 static const Eo_Op_Description *
238 _eo_op_id_desc_get(Eo_Op op)
240 const Eo_Class *klass = OP_CLASS_GET(op);
241 Eo_Op sub_id = OP_SUB_ID_GET(op);
246 if (klass && (sub_id < klass->desc->ops.count))
247 return klass->desc->ops.descs + sub_id;
253 _eo_op_id_name_get(Eo_Op op)
255 const Eo_Op_Description *desc = _eo_op_id_desc_get(op);
256 return (desc) ? desc->name : NULL;
260 _eo_kls_itr_init(Eo *obj, Eo_Op op, Eo_Kls_Itr *prev_state)
262 prev_state->op = obj->mro_itr.op;
263 prev_state->kls_itr = obj->mro_itr.kls_itr;
265 /* If we are in a constructor/destructor or we changed an op - init. */
266 if ((op == EO_NOOP) || (obj->mro_itr.op != op))
268 obj->mro_itr.op = op;
269 obj->mro_itr.kls_itr = obj->klass->mro;
274 _eo_kls_itr_end(Eo *obj, Eo_Kls_Itr *prev_state)
276 if (obj->mro_itr.op != prev_state->op)
278 obj->mro_itr.op = prev_state->op;
279 obj->mro_itr.kls_itr = prev_state->kls_itr;
283 static inline const Eo_Class *
284 _eo_kls_itr_get(Eo *obj)
286 return (obj->mro_itr.kls_itr) ? *(obj->mro_itr.kls_itr) : NULL;
289 static inline const Eo_Class *
290 _eo_kls_itr_next(Eo *obj, Eo_Op op)
292 if (obj->mro_itr.op != op)
294 Eo_Op node_op = obj->mro_itr.op;
295 ERR("Called with op %d ('%s') while expecting: %d ('%s'). This probaly means you called eo_*_super functions from a wrong place.",
296 op, _eo_op_id_name_get(op),
297 node_op, _eo_op_id_name_get(node_op));
301 const Eo_Class **kls_itr = obj->mro_itr.kls_itr;
305 obj->mro_itr.kls_itr = kls_itr;
314 static inline Eina_Bool
315 _eo_kls_itr_reached_end(const Eo *obj)
317 const Eo_Class **kls_itr = obj->mro_itr.kls_itr;
318 return !(*kls_itr && *(kls_itr + 1));
322 _eo_op_internal(Eo *obj, Eina_Bool constant, Eo_Op op, va_list *p_list)
324 const Eo_Class *klass;
325 Eina_Bool ret = EINA_FALSE;
327 const Eo_Op_Description *op_desc = _eo_op_id_desc_get(op);
330 ((constant == EINA_TRUE) && (op_desc->constant == EINA_FALSE)))
332 ERR("Tried calling non-const or non-existant op '%s' (%d) from a const (query) function.", (op_desc) ? op_desc->name : NULL, op);
336 Eo_Kls_Itr prev_state;
337 _eo_kls_itr_init(obj, op, &prev_state);
338 klass = _eo_kls_itr_get(obj);
341 eo_op_func_type func = dich_func_get(klass, op);
345 func(obj, eo_data_get(obj, klass), p_list);
350 klass = _eo_kls_itr_next(obj, op);
353 /* Try composite objects */
357 EINA_LIST_FOREACH(obj->composite_objects, itr, emb_obj)
359 if (_eo_op_internal(emb_obj, constant, op, p_list))
368 _eo_kls_itr_end(obj, &prev_state);
373 eo_do_internal(Eo *obj, Eina_Bool constant, ...)
375 Eina_Bool ret = EINA_TRUE;
379 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, EINA_FALSE);
383 va_start(p_list, constant);
385 op = va_arg(p_list, Eo_Op);
388 if (!_eo_op_internal(obj, constant, op, &p_list))
390 const Eo_Class *op_klass = OP_CLASS_GET(op);
391 const char *_dom_name = (op_klass) ? op_klass->desc->name : NULL;
392 ERR("Can't find func for op %x ('%s' of domain '%s') for class '%s'. Aborting.",
393 op, _eo_op_id_name_get(op), _dom_name,
394 obj->klass->desc->name);
398 op = va_arg(p_list, Eo_Op);
408 eo_do_super_internal(Eo *obj, Eina_Bool constant, Eo_Op op, ...)
410 const Eo_Class *obj_klass;
411 Eina_Bool ret = EINA_TRUE;
413 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, EINA_FALSE);
415 /* Advance the kls itr. */
416 obj_klass = _eo_kls_itr_next(obj, op);
423 va_start(p_list, op);
424 if (!_eo_op_internal(obj, constant, op, &p_list))
426 const Eo_Class *op_klass = OP_CLASS_GET(op);
427 const char *_dom_name = (op_klass) ? op_klass->desc->name : NULL;
428 ERR("Can't find func for op %x ('%s' of domain '%s') for class '%s'. Aborting.",
429 op, _eo_op_id_name_get(op), _dom_name,
430 (obj_klass) ? obj_klass->desc->name : NULL);
438 EAPI const Eo_Class *
439 eo_class_get(const Eo *obj)
441 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, EINA_FALSE);
447 eo_class_name_get(const Eo_Class *klass)
449 EO_MAGIC_RETURN_VAL(klass, EO_CLASS_EINA_MAGIC, NULL);
451 return klass->desc->name;
455 _eo_class_base_op_init(Eo_Class *klass)
457 const Eo_Class_Description *desc = klass->desc;
458 if (!desc || !desc->ops.base_op_id)
461 /* FIXME: Depends on values defined above! */
462 *(desc->ops.base_op_id) = klass->class_id << OP_CLASS_OFFSET;
466 _eo_class_mro_has(const Eo_Class *klass, const Eo_Class *find)
468 const Eo_Class **itr;
469 for (itr = klass->mro ; *itr ; itr++)
481 _eo_class_mro_add(Eina_List *mro, const Eo_Class *klass)
483 Eina_List *extn_pos = NULL;
484 Eina_Bool check_consistency = !mro;
488 mro = eina_list_append(mro, klass);
490 /* Recursively add extenions. */
492 Eo_Extension_Node *extn;
493 EINA_INLIST_FOREACH(klass->extensions, extn)
495 mro = _eo_class_mro_add(mro, extn->klass);
496 /* Not possible: if (!mro) return NULL; */
498 if (check_consistency)
500 extn_pos = eina_list_append(extn_pos, eina_list_last(mro));
505 /* Check if we can create a consistent mro. We only do it for the class
506 * we are working on (i.e no parents). */
507 if (check_consistency)
509 Eo_Extension_Node *extn;
511 Eina_List *itr = extn_pos;
512 EINA_INLIST_FOREACH(klass->extensions, extn)
514 /* Get the first one after the extension. */
515 Eina_List *extn_list = eina_list_next(eina_list_data_get(itr));
517 /* If we found the extension again. */
518 if (eina_list_data_find_list(extn_list, extn->klass))
521 ERR("Cannot create a consistent method resolution order for class '%s' because of '%s'.", klass->desc->name, extn->klass->desc->name);
525 itr = eina_list_next(itr);
530 mro = _eo_class_mro_add(mro, klass->parent);
536 _eo_class_mro_init(Eo_Class *klass)
538 Eina_List *mro = NULL;
540 DBG("Started creating MRO for class '%s'", klass->desc->name);
541 mro = _eo_class_mro_add(mro, klass);
546 /* Remove duplicates and make them the right order. */
548 Eina_List *itr1, *itr2, *itr2n;
550 itr1 = eina_list_last(mro);
553 itr2 = eina_list_prev(itr1);
557 itr2n = eina_list_prev(itr2);
559 if (eina_list_data_get(itr1) == eina_list_data_get(itr2))
561 mro = eina_list_remove_list(mro, itr2);
567 itr1 = eina_list_prev(itr1);
571 /* Copy the mro and free the list. */
573 const Eo_Class *kls_itr;
574 const Eo_Class **mro_itr;
575 klass->mro = calloc(sizeof(*klass->mro), eina_list_count(mro) + 1);
577 mro_itr = klass->mro;
579 EINA_LIST_FREE(mro, kls_itr)
581 *(mro_itr++) = kls_itr;
583 DBG("Added '%s' to MRO", kls_itr->desc->name);
588 DBG("Finished creating MRO for class '%s'", klass->desc->name);
594 _eo_class_constructor(Eo_Class *klass)
596 if (klass->constructed)
599 klass->constructed = EINA_TRUE;
601 if (klass->desc->class_constructor)
602 klass->desc->class_constructor(klass);
606 eo_class_funcs_set(Eo_Class *klass, const Eo_Op_Func_Description *func_descs)
608 EO_MAGIC_RETURN(klass, EO_CLASS_EINA_MAGIC);
610 const Eo_Op_Func_Description *itr;
614 for ( ; itr->op != 0 ; itr++)
616 const Eo_Op_Description *op_desc = _eo_op_id_desc_get(itr->op);
618 if (EINA_LIKELY(!op_desc || (itr->constant == op_desc->constant)))
620 dich_func_set(klass, itr->op, itr->func);
624 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);
631 eo_class_free(Eo_Class *klass)
633 if (klass->constructed)
635 if (klass->desc->class_destructor)
636 klass->desc->class_destructor(klass);
638 dich_func_clean_all(klass);
643 Eo_Extension_Node *extn = NULL;
644 EINA_INLIST_FOREACH_SAFE(klass->extensions, itrn, extn)
653 if (klass->extn_data_off)
654 free(klass->extn_data_off);
661 _eo_class_check_op_descs(const Eo_Class *klass)
663 const Eo_Class_Description *desc = klass->desc;
664 const Eo_Op_Description *itr;
667 if (desc->ops.count > 0)
669 if (!desc->ops.base_op_id)
671 ERR("Class '%s' has a non-zero ops count, but base_id is NULL.",
676 if (!desc->ops.descs)
678 ERR("Class '%s' has a non-zero ops count, but there are no descs.",
684 itr = desc->ops.descs;
685 for (i = 0 ; i < desc->ops.count ; i++, itr++)
687 if (itr->sub_op != i)
691 ERR("Wrong order in Ops description for class '%s'. Expected %d and got %d", desc->name, i, itr->sub_op);
695 ERR("Found too few Ops description for class '%s'. Expected %d descriptions, but found %d.", desc->name, desc->ops.count, i);
701 if (itr && itr->name)
703 ERR("Found extra Ops description for class '%s'. Expected %d descriptions, but found more.", desc->name, desc->ops.count);
710 EAPI const Eo_Class *
711 eo_class_new(const Eo_Class_Description *desc, const Eo_Class *parent, ...)
716 if (parent && !EINA_MAGIC_CHECK(parent, EO_CLASS_EINA_MAGIC))
718 EINA_MAGIC_FAIL(parent, EO_CLASS_EINA_MAGIC);
722 va_start(p_list, parent);
724 EINA_SAFETY_ON_NULL_RETURN_VAL(desc, NULL);
725 EINA_SAFETY_ON_NULL_RETURN_VAL(desc->name, NULL);
727 /* Check restrictions on Interface types. */
728 if (desc->type == EO_CLASS_TYPE_INTERFACE)
730 EINA_SAFETY_ON_FALSE_RETURN_VAL(!desc->constructor, NULL);
731 EINA_SAFETY_ON_FALSE_RETURN_VAL(!desc->destructor, NULL);
732 EINA_SAFETY_ON_FALSE_RETURN_VAL(!desc->class_constructor, NULL);
733 EINA_SAFETY_ON_FALSE_RETURN_VAL(!desc->class_destructor, NULL);
734 EINA_SAFETY_ON_FALSE_RETURN_VAL(!desc->data_size, NULL);
737 klass = calloc(1, sizeof(Eo_Class));
738 klass->parent = parent;
740 /* Handle class extensions */
742 Eo_Class *extn = NULL;
744 extn = va_arg(p_list, Eo_Class *);
747 switch (extn->desc->type)
749 case EO_CLASS_TYPE_REGULAR:
750 case EO_CLASS_TYPE_REGULAR_NO_INSTANT:
751 /* Use it like an interface. */
752 case EO_CLASS_TYPE_INTERFACE:
754 case EO_CLASS_TYPE_MIXIN:
756 Eo_Extension_Node *node = calloc(1, sizeof(*node));
759 eina_inlist_append(klass->extensions,
760 EINA_INLIST_GET(node));
765 extn = va_arg(p_list, Eo_Class *);
771 /* Handle the inheritance */
774 /* Verify the inheritance is allowed. */
775 switch (klass->desc->type)
777 case EO_CLASS_TYPE_REGULAR:
778 case EO_CLASS_TYPE_REGULAR_NO_INSTANT:
779 if ((klass->parent->desc->type != EO_CLASS_TYPE_REGULAR) &&
780 (klass->parent->desc->type != EO_CLASS_TYPE_REGULAR_NO_INSTANT))
782 ERR("Regular classes ('%s') aren't allowed to inherit from non-regular classes ('%s').", klass->desc->name, klass->parent->desc->name);
786 case EO_CLASS_TYPE_INTERFACE:
787 case EO_CLASS_TYPE_MIXIN:
788 if ((klass->parent->desc->type != EO_CLASS_TYPE_INTERFACE) &&
789 (klass->parent->desc->type != EO_CLASS_TYPE_MIXIN))
791 ERR("Non-regular classes ('%s') aren't allowed to inherit from regular classes ('%s').", klass->desc->name, klass->parent->desc->name);
798 /* Update the current offset. */
799 /* FIXME: Make sure this alignment is enough. */
800 klass->data_offset = klass->parent->data_offset +
801 EO_ALIGN_SIZE(klass->parent->desc->data_size);
804 if (!_eo_class_check_op_descs(klass))
809 if (!_eo_class_mro_init(klass))
814 /* create MIXIN offset table. */
816 const Eo_Class **mro_itr = klass->mro;
817 Eo_Extension_Data_Offset *extn_data_itr;
819 size_t extn_data_off = klass->data_offset +
820 EO_ALIGN_SIZE(klass->desc->data_size);
822 /* FIXME: Make faster... */
825 if (((*mro_itr)->desc->type == EO_CLASS_TYPE_MIXIN) &&
826 ((*mro_itr)->desc->data_size > 0))
833 klass->extn_data_off = calloc(extn_num + 1,
834 sizeof(*klass->extn_data_off));
836 extn_data_itr = klass->extn_data_off;
837 mro_itr = klass->mro;
840 if (((*mro_itr)->desc->type == EO_CLASS_TYPE_MIXIN) &&
841 ((*mro_itr)->desc->data_size > 0))
843 extn_data_itr->klass = *mro_itr;
844 extn_data_itr->offset = extn_data_off;
846 extn_data_off += EO_ALIGN_SIZE(extn_data_itr->klass->desc->data_size);
852 klass->extn_data_size = extn_data_off;
855 eina_lock_take(&_eo_class_creation_lock);
856 klass->class_id = ++_eo_classes_last_id;
858 /* FIXME: Handle errors. */
860 tmp = realloc(_eo_classes, _eo_classes_last_id * sizeof(*_eo_classes));
862 _eo_classes[klass->class_id - 1] = klass;
864 eina_lock_release(&_eo_class_creation_lock);
866 EINA_MAGIC_SET(klass, EO_CLASS_EINA_MAGIC);
868 _eo_class_base_op_init(klass);
870 _eo_class_constructor(klass);
877 eo_class_free(klass);
882 eo_add(const Eo_Class *klass, Eo *parent)
884 EO_MAGIC_RETURN_VAL(klass, EO_CLASS_EINA_MAGIC, NULL);
886 if (parent) EO_MAGIC_RETURN_VAL(parent, EO_EINA_MAGIC, NULL);
888 if (EINA_UNLIKELY(klass->desc->type != EO_CLASS_TYPE_REGULAR))
890 ERR("Class '%s' is not instantiate-able. Aborting.", klass->desc->name);
894 Eo *obj = calloc(1, EO_ALIGN_SIZE(sizeof(*obj)) +
895 (klass->data_offset + EO_ALIGN_SIZE(klass->desc->data_size)) +
896 klass->extn_data_size);
898 obj->parent = parent;
902 Eo_Kls_Itr prev_state;
904 _eo_kls_itr_init(obj, EO_NOOP, &prev_state);
905 eo_constructor_error_unset(obj);
907 EINA_MAGIC_SET(obj, EO_EINA_MAGIC);
909 _eo_constructor(obj, klass);
911 if (EINA_UNLIKELY(eo_constructor_error_get(obj)))
913 ERR("Type '%s' - One of the object constructors have failed.", klass->desc->name);
917 if (EINA_UNLIKELY(!_eo_kls_itr_reached_end(obj)))
919 ERR("Type '%s' - Not all of the object constructors have been executed.", klass->desc->name);
922 _eo_kls_itr_end(obj, &prev_state);
928 _eo_kls_itr_end(obj, &prev_state);
929 /* Unref twice, once for the ref above, and once for the basic object ref. */
944 eo_xref_internal(Eo *obj, const Eo *ref_obj, const char *file, int line)
946 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, obj);
951 Eo_Xref_Node *xref = calloc(1, sizeof(*xref));
952 xref->ref_obj = ref_obj;
956 /* FIXME: Make it sorted. */
957 obj->xrefs = eina_inlist_prepend(obj->xrefs, EINA_INLIST_GET(xref));
968 eo_xunref(Eo *obj, const Eo *ref_obj)
970 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
972 Eo_Xref_Node *xref = NULL;
973 EINA_INLIST_FOREACH(obj->xrefs, xref)
975 if (xref->ref_obj == ref_obj)
981 obj->xrefs = eina_inlist_remove(obj->xrefs, EINA_INLIST_GET(xref));
986 ERR("ref_obj (%p) does not reference obj (%p). Aborting unref.", ref_obj, obj);
998 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, obj);
1005 _eo_del_internal(Eo *obj)
1009 /* We need that for the event callbacks that may ref/unref. */
1012 eo_event_callback_call(obj, EO_EV_DEL, NULL);
1013 obj->delete = EINA_TRUE;
1017 const Eo_Class *klass = eo_class_get(obj);
1018 Eo_Kls_Itr prev_state;
1020 _eo_kls_itr_init(obj, EO_NOOP, &prev_state);
1021 eo_constructor_error_unset(obj);
1022 _eo_destructor(obj, klass);
1023 if (eo_constructor_error_get(obj))
1025 ERR("Type '%s' - One of the object destructors have failed.", klass->desc->name);
1028 if (!_eo_kls_itr_reached_end(obj))
1030 ERR("Type '%s' - Not all of the object destructors have been executed.", klass->desc->name);
1032 _eo_kls_itr_end(obj, &prev_state);
1033 /*FIXME: add eo_class_unref(klass) ? - just to clear the caches. */
1035 Eina_List *itr, *itr_n;
1037 EINA_LIST_FOREACH_SAFE(obj->composite_objects, itr, itr_n, emb_obj)
1039 eo_composite_object_detach(obj, emb_obj);
1046 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1048 if (--(obj->refcount) == 0)
1050 _eo_del_internal(obj);
1051 /* We need that for the event callbacks that may ref/unref. */
1054 eo_event_callback_call(obj, EO_EV_FREE, NULL);
1059 /* If for some reason it's not empty, clear it. */
1062 WRN("obj->xrefs is not empty, possibly a bug, please report. - An error will be reported for each xref in the stack.");
1063 Eina_Inlist *nitr = obj->xrefs->next;
1064 free(EINA_INLIST_CONTAINER_GET(obj->xrefs, Eo_Xref_Node));
1069 _eo_callback_remove_all(obj);
1076 eo_ref_get(const Eo *obj)
1078 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, 0);
1080 return obj->refcount;
1086 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1088 _eo_del_internal(obj);
1093 eo_parent_get(Eo *obj)
1095 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, NULL);
1101 eo_constructor_error_set(Eo *obj)
1103 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1105 obj->construct_error = EINA_TRUE;
1109 eo_constructor_error_unset(Eo *obj)
1111 obj->construct_error = EINA_FALSE;
1115 eo_constructor_error_get(const Eo *obj)
1117 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, EINA_TRUE);
1119 return obj->construct_error;
1123 _eo_constructor_default(Eo *obj)
1125 eo_constructor_super(obj);
1129 _eo_destructor_default(Eo *obj)
1131 eo_destructor_super(obj);
1135 _eo_constructor(Eo *obj, const Eo_Class *klass)
1140 if (klass->desc->constructor)
1141 klass->desc->constructor(obj, eo_data_get(obj, klass));
1143 _eo_constructor_default(obj);
1147 _eo_destructor(Eo *obj, const Eo_Class *klass)
1152 if (klass->desc->destructor)
1153 klass->desc->destructor(obj, eo_data_get(obj, klass));
1155 _eo_destructor_default(obj);
1159 eo_constructor_super(Eo *obj)
1161 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1163 _eo_constructor(obj, _eo_kls_itr_next(obj, EO_NOOP));
1167 eo_destructor_super(Eo *obj)
1169 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1171 _eo_destructor(obj, _eo_kls_itr_next(obj, EO_NOOP));
1175 eo_data_get(const Eo *obj, const Eo_Class *klass)
1177 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, NULL);
1180 if (!_eo_class_mro_has(obj->klass, klass))
1182 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);
1186 if (EINA_LIKELY(klass->desc->data_size > 0))
1188 if (EINA_UNLIKELY(klass->desc->type == EO_CLASS_TYPE_MIXIN))
1190 Eo_Extension_Data_Offset *doff_itr =
1191 eo_class_get(obj)->extn_data_off;
1196 while (doff_itr->klass)
1198 if (doff_itr->klass == klass)
1199 return ((char *) obj) + EO_ALIGN_SIZE(sizeof(*obj)) +
1206 return ((char *) obj) + EO_ALIGN_SIZE(sizeof(*obj)) +
1212 /* FIXME: Enable this to only work when called from the outside.
1213 ERR("Tried getting data of class '%s', but it has none..", klass->desc->name);
1223 const char *log_dom = "eo";
1224 if (_eo_init_count++ > 0)
1230 _eo_classes_last_id = 0;
1231 _eo_log_dom = eina_log_domain_register(log_dom, EINA_COLOR_LIGHTBLUE);
1232 if (_eo_log_dom < 0)
1234 EINA_LOG_ERR("Could not register log domain: %s", log_dom);
1238 if (!eina_lock_new(&_eo_class_creation_lock))
1240 EINA_LOG_ERR("Could not init lock.");
1244 eina_magic_string_static_set(EO_EINA_MAGIC, EO_EINA_MAGIC_STR);
1245 eina_magic_string_static_set(EO_CLASS_EINA_MAGIC,
1246 EO_CLASS_EINA_MAGIC_STR);
1255 Eo_Class **cls_itr = _eo_classes;
1257 if (--_eo_init_count > 0)
1260 for (i = 0 ; i < _eo_classes_last_id ; i++, cls_itr++)
1263 eo_class_free(*cls_itr);
1269 eina_lock_free(&_eo_class_creation_lock);
1271 eina_log_domain_unregister(_eo_log_dom);
1279 eo_composite_object_attach(Eo *obj, Eo *emb_obj)
1281 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1282 EO_MAGIC_RETURN(emb_obj, EO_EINA_MAGIC);
1284 eo_xref(emb_obj, obj);
1285 obj->composite_objects = eina_list_prepend(obj->composite_objects, emb_obj);
1289 eo_composite_object_detach(Eo *obj, Eo *emb_obj)
1291 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1292 EO_MAGIC_RETURN(emb_obj, EO_EINA_MAGIC);
1294 obj->composite_objects = eina_list_remove(obj->composite_objects, emb_obj);
1295 eo_xunref(emb_obj, obj);
1299 eo_composite_is(Eo *emb_obj)
1301 if (!EINA_MAGIC_CHECK(emb_obj, EO_EINA_MAGIC))
1303 EINA_MAGIC_FAIL(emb_obj, EO_EINA_MAGIC);
1307 Eo *obj = eo_parent_get(emb_obj);
1314 EINA_LIST_FOREACH(obj->composite_objects, itr, tmp)
1324 struct _Eo_Callback_Description
1327 const Eo_Event_Description *event;
1330 Eo_Callback_Priority priority;
1331 Eina_Bool delete_me : 1;
1334 /* Actually remove, doesn't care about walking list, or delete_me */
1336 _eo_callback_remove(Eo *obj, Eo_Callback_Description *cb)
1338 obj->callbacks = eina_inlist_remove(obj->callbacks,
1339 EINA_INLIST_GET(cb));
1343 /* Actually remove, doesn't care about walking list, or delete_me */
1345 _eo_callback_remove_all(Eo *obj)
1348 Eo_Callback_Description *cb = NULL;
1349 EINA_INLIST_FOREACH_SAFE(obj->callbacks, initr, cb)
1351 _eo_callback_remove(obj, cb);
1356 _eo_callbacks_clear(Eo *obj)
1359 Eo_Callback_Description *cb = NULL;
1361 /* Abort if we are currently walking the list. */
1362 if (obj->walking_list > 0)
1365 EINA_INLIST_FOREACH_SAFE(obj->callbacks, itn, cb)
1369 _eo_callback_remove(obj, cb);
1375 _callback_priority_cmp(const void *_a, const void *_b)
1377 const Eo_Callback_Description *a, *b;
1378 a = (const Eo_Callback_Description *) _a;
1379 b = (const Eo_Callback_Description *) _b;
1380 if (a->priority < b->priority)
1387 eo_event_callback_priority_add(Eo *obj,
1388 const Eo_Event_Description *desc,
1389 Eo_Callback_Priority priority,
1393 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, EINA_FALSE);
1395 Eo_Callback_Description *cb = calloc(1, sizeof(*cb));
1398 cb->func_data = (void *) data;
1399 cb->priority = priority;
1400 obj->callbacks = eina_inlist_sorted_insert(obj->callbacks,
1401 EINA_INLIST_GET(cb), _callback_priority_cmp);
1403 eo_event_callback_call(obj, EO_EV_CALLBACK_ADD, desc);
1409 eo_event_callback_del_lazy(Eo *obj, const Eo_Event_Description *desc, Eo_Event_Cb func)
1411 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, NULL);
1414 Eo_Callback_Description *cb;
1415 EINA_INLIST_FOREACH(obj->callbacks, cb)
1417 if ((cb->event == desc) && (cb->func == func))
1421 data = cb->func_data;
1422 cb->delete_me = EINA_TRUE;
1423 _eo_callbacks_clear(obj);
1432 eo_event_callback_call(obj, EO_EV_CALLBACK_DEL, desc);
1437 eo_event_callback_del(Eo *obj, const Eo_Event_Description *desc, Eo_Event_Cb func, const void *user_data)
1439 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, NULL);
1442 Eo_Callback_Description *cb;
1443 EINA_INLIST_FOREACH(obj->callbacks, cb)
1445 if ((cb->event == desc) && (cb->func == func) &&
1446 (cb->func_data == user_data))
1450 data = cb->func_data;
1451 cb->delete_me = EINA_TRUE;
1452 _eo_callbacks_clear(obj);
1461 eo_event_callback_call(obj, EO_EV_CALLBACK_DEL, desc);
1466 eo_event_callback_call(Eo *obj, const Eo_Event_Description *desc,
1467 const void *event_info)
1469 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, EINA_FALSE);
1471 Eina_Bool ret = EINA_TRUE;
1472 Eo_Callback_Description *cb;
1475 obj->walking_list++;
1477 EINA_INLIST_FOREACH(obj->callbacks, cb)
1479 if (!cb->delete_me && (cb->event == desc))
1481 /* Abort callback calling if the func says so. */
1482 if (!cb->func((void *) cb->func_data, obj, desc,
1483 (void *) event_info))
1492 obj->walking_list--;
1493 _eo_callbacks_clear(obj);
1500 _eo_event_forwarder_callback(void *data, Eo *obj, const Eo_Event_Description *desc, void *event_info)
1503 Eo *new_obj = (Eo *) data;
1504 return eo_event_callback_call(new_obj, desc, event_info);
1507 /* FIXME: Change default priority? Maybe call later? */
1509 eo_event_callback_forwarder_add(Eo *obj, const Eo_Event_Description *desc, Eo *new_obj)
1511 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, EINA_FALSE);
1512 EO_MAGIC_RETURN_VAL(new_obj, EO_EINA_MAGIC, EINA_FALSE);
1514 return eo_event_callback_add(obj, desc, _eo_event_forwarder_callback, new_obj);
1518 eo_event_callback_forwarder_del(Eo *obj, const Eo_Event_Description *desc, Eo *new_obj)
1520 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, EINA_FALSE);
1521 EO_MAGIC_RETURN_VAL(new_obj, EO_EINA_MAGIC, EINA_FALSE);
1523 eo_event_callback_del(obj, desc, _eo_event_forwarder_callback, new_obj);