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);
22 static inline void *_eo_data_get(const Eo *obj, const Eo_Class *klass);
24 typedef struct _Eo_Callback_Description Eo_Callback_Description;
29 const Eo_Class **kls_itr;
32 #define EO_EINA_MAGIC 0xa186bc32 /* Nothing magical about this number. */
33 #define EO_EINA_MAGIC_STR "Eo"
34 #define EO_CLASS_EINA_MAGIC 0xa186bb32 /* Nothing magical about this number. */
35 #define EO_CLASS_EINA_MAGIC_STR "Eo Class"
37 #define EO_MAGIC_RETURN_VAL(d, magic, ret) \
39 if (!EINA_MAGIC_CHECK(d, magic)) \
41 EINA_MAGIC_FAIL(d, magic); \
46 #define EO_MAGIC_RETURN(d, magic) \
48 if (!EINA_MAGIC_CHECK(d, magic)) \
50 EINA_MAGIC_FAIL(d, magic); \
58 const Eo_Class *klass;
64 Eina_List *composite_objects;
66 Eina_Inlist *callbacks;
72 Eina_Bool construct_error:1;
76 /* Dich search, split to 0xff 0xff 0xffff */
78 #define DICH_CHAIN1_MASK (0xff)
79 #define DICH_CHAIN2_MASK (0xff)
80 #define DICH_CHAIN_LAST_MASK (0xffff)
81 #define DICH_CHAIN1_SIZE (DICH_CHAIN1_MASK + 1)
82 #define DICH_CHAIN2_SIZE (DICH_CHAIN2_MASK + 1)
83 #define DICH_CHAIN_LAST_SIZE (DICH_CHAIN_LAST_MASK + 1)
84 #define DICH_CHAIN1(x) (((x) >> 24) & DICH_CHAIN1_MASK)
85 #define DICH_CHAIN2(x) (((x) >> 16) & DICH_CHAIN2_MASK)
86 #define DICH_CHAIN_LAST(x) ((x) & DICH_CHAIN_LAST_MASK)
88 #define OP_CLASS_OFFSET 16
89 #define OP_CLASS_OFFSET_GET(x) (((x) >> OP_CLASS_OFFSET) & 0xffff)
90 #define OP_CLASS_GET(op) ({ \
91 Eo_Class_Id tmp = OP_CLASS_OFFSET_GET(op); \
92 (Eo_Class *) ((tmp <= _eo_classes_last_id) && (tmp > 0)) ? \
93 (_eo_classes[tmp - 1]) : NULL; \
95 #define OP_SUB_ID_GET(op) ((op) & 0xffff)
97 #define EO_ALIGN_SIZE(size) \
98 ((size) + (sizeof(void *) - ((size) % sizeof(void *))))
100 /* Structure of Eo_Op is:
105 typedef struct _Dich_Chain1 Dich_Chain1;
109 eo_op_func_type func;
114 op_type_funcs *funcs;
125 const Eo_Class *klass;
130 const Eo_Class *klass;
132 } Eo_Extension_Data_Offset;
137 Eo_Class_Id class_id;
138 const Eo_Class *parent;
139 const Eo_Class_Description *desc;
140 Dich_Chain1 chain[DICH_CHAIN1_SIZE];
141 Eina_Inlist *extensions;
143 Eo_Extension_Data_Offset *extn_data_off;
144 size_t extn_data_size;
146 const Eo_Class **mro;
148 size_t data_offset; /* < Offset of the data within object data. */
150 Eina_Bool constructed : 1;
153 static inline eo_op_func_type
154 dich_func_get(const Eo_Class *klass, Eo_Op op)
156 const Dich_Chain1 *chain1 = &klass->chain[DICH_CHAIN1(op)];
157 if (!chain1) return NULL;
158 if (!chain1->chain) return NULL;
159 Dich_Chain2 *chain2 = &chain1->chain[DICH_CHAIN2(op)];
160 if (!chain2) return NULL;
161 if (!chain2->funcs) return NULL;
163 /* num_ops is calculated from the class. */
164 const Eo_Class *op_klass = OP_CLASS_GET(op);
165 if (!op_klass || (DICH_CHAIN_LAST(op) >= op_klass->desc->ops.count))
168 return chain2->funcs[DICH_CHAIN_LAST(op)].func;
172 dich_func_set(Eo_Class *klass, Eo_Op op, eo_op_func_type func)
174 const Eo_Class *op_klass = OP_CLASS_GET(op);
177 /* Verify op is valid. */
180 /* num_ops is calculated from the class. */
181 num_ops = op_klass->desc->ops.count;
182 if (DICH_CHAIN_LAST(op) >= num_ops)
184 ERR("OP %x is too big for the domain '%s', expected value < %x.",
185 op, op_klass->desc->name, op_klass->desc->ops.count);
191 ERR("OP %x is from an illegal class.", op);
195 Dich_Chain1 *chain1 = &klass->chain[DICH_CHAIN1(op)];
198 chain1->chain = calloc(DICH_CHAIN2_SIZE, sizeof(*(chain1->chain)));
201 Dich_Chain2 *chain2 = &chain1->chain[DICH_CHAIN2(op)];
204 chain2->funcs = calloc(num_ops, sizeof(*(chain2->funcs)));
207 chain2->funcs[DICH_CHAIN_LAST(op)].func = func;
211 dich_func_clean_all(Eo_Class *klass)
214 Dich_Chain1 *chain1 = klass->chain;
216 for (i = 0 ; i < DICH_CHAIN1_SIZE ; i++, chain1++)
219 Dich_Chain2 *chain2 = chain1->chain;
224 for (j = 0 ; j < DICH_CHAIN2_SIZE ; j++, chain2++)
229 chain1->chain = NULL;
235 static const Eo_Op_Description noop_desc =
236 EO_OP_DESCRIPTION(EO_NOOP, "", "No operation.");
238 static const Eo_Op_Description *
239 _eo_op_id_desc_get(Eo_Op op)
241 const Eo_Class *klass = OP_CLASS_GET(op);
242 Eo_Op sub_id = OP_SUB_ID_GET(op);
247 if (klass && (sub_id < klass->desc->ops.count))
248 return klass->desc->ops.descs + sub_id;
254 _eo_op_id_name_get(Eo_Op op)
256 const Eo_Op_Description *desc = _eo_op_id_desc_get(op);
257 return (desc) ? desc->name : NULL;
261 _eo_kls_itr_init(Eo *obj, Eo_Op op, Eo_Kls_Itr *prev_state)
263 prev_state->op = obj->mro_itr.op;
264 prev_state->kls_itr = obj->mro_itr.kls_itr;
266 /* If we are in a constructor/destructor or we changed an op - init. */
267 if ((op == EO_NOOP) || (obj->mro_itr.op != op))
269 obj->mro_itr.op = op;
270 obj->mro_itr.kls_itr = obj->klass->mro;
275 _eo_kls_itr_end(Eo *obj, Eo_Kls_Itr *prev_state)
277 if (obj->mro_itr.op != prev_state->op)
279 obj->mro_itr.op = prev_state->op;
280 obj->mro_itr.kls_itr = prev_state->kls_itr;
284 static inline const Eo_Class *
285 _eo_kls_itr_get(Eo *obj)
287 return (obj->mro_itr.kls_itr) ? *(obj->mro_itr.kls_itr) : NULL;
290 static inline const Eo_Class *
291 _eo_kls_itr_next(Eo *obj, Eo_Op op)
293 if (obj->mro_itr.op != op)
295 Eo_Op node_op = obj->mro_itr.op;
296 ERR("Called with op %d ('%s') while expecting: %d ('%s'). This probaly means you called eo_*_super functions from a wrong place.",
297 op, _eo_op_id_name_get(op),
298 node_op, _eo_op_id_name_get(node_op));
302 const Eo_Class **kls_itr = obj->mro_itr.kls_itr;
306 obj->mro_itr.kls_itr = kls_itr;
315 static inline Eina_Bool
316 _eo_kls_itr_reached_end(const Eo *obj)
318 const Eo_Class **kls_itr = obj->mro_itr.kls_itr;
319 return !(*kls_itr && *(kls_itr + 1));
323 _eo_op_internal(Eo *obj, Eina_Bool constant, Eo_Op op, va_list *p_list)
325 const Eo_Class *klass;
326 Eina_Bool ret = EINA_FALSE;
328 const Eo_Op_Description *op_desc = _eo_op_id_desc_get(op);
331 ((constant == EINA_TRUE) && (op_desc->constant == EINA_FALSE)))
333 ERR("Tried calling non-const or non-existant op '%s' (%d) from a const (query) function.", (op_desc) ? op_desc->name : NULL, op);
337 Eo_Kls_Itr prev_state;
338 _eo_kls_itr_init(obj, op, &prev_state);
339 klass = _eo_kls_itr_get(obj);
342 eo_op_func_type func = dich_func_get(klass, op);
346 func(obj, _eo_data_get(obj, klass), p_list);
351 klass = _eo_kls_itr_next(obj, op);
354 /* Try composite objects */
358 EINA_LIST_FOREACH(obj->composite_objects, itr, emb_obj)
360 if (_eo_op_internal(emb_obj, constant, op, p_list))
369 _eo_kls_itr_end(obj, &prev_state);
374 eo_do_internal(Eo *obj, Eina_Bool constant, ...)
376 Eina_Bool ret = EINA_TRUE;
380 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, EINA_FALSE);
384 va_start(p_list, constant);
386 op = va_arg(p_list, Eo_Op);
389 if (!_eo_op_internal(obj, constant, op, &p_list))
391 const Eo_Class *op_klass = OP_CLASS_GET(op);
392 const char *_dom_name = (op_klass) ? op_klass->desc->name : NULL;
393 ERR("Can't find func for op %x ('%s' of domain '%s') for class '%s'. Aborting.",
394 op, _eo_op_id_name_get(op), _dom_name,
395 obj->klass->desc->name);
399 op = va_arg(p_list, Eo_Op);
409 eo_do_super_internal(Eo *obj, Eina_Bool constant, Eo_Op op, ...)
411 const Eo_Class *obj_klass;
412 Eina_Bool ret = EINA_TRUE;
414 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, EINA_FALSE);
416 /* Advance the kls itr. */
417 obj_klass = _eo_kls_itr_next(obj, op);
424 va_start(p_list, op);
425 if (!_eo_op_internal(obj, constant, op, &p_list))
427 const Eo_Class *op_klass = OP_CLASS_GET(op);
428 const char *_dom_name = (op_klass) ? op_klass->desc->name : NULL;
429 ERR("Can't find func for op %x ('%s' of domain '%s') for class '%s'. Aborting.",
430 op, _eo_op_id_name_get(op), _dom_name,
431 (obj_klass) ? obj_klass->desc->name : NULL);
439 EAPI const Eo_Class *
440 eo_class_get(const Eo *obj)
442 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, EINA_FALSE);
448 eo_class_name_get(const Eo_Class *klass)
450 EO_MAGIC_RETURN_VAL(klass, EO_CLASS_EINA_MAGIC, NULL);
452 return klass->desc->name;
456 _eo_class_base_op_init(Eo_Class *klass)
458 const Eo_Class_Description *desc = klass->desc;
459 if (!desc || !desc->ops.base_op_id)
462 /* FIXME: Depends on values defined above! */
463 *(desc->ops.base_op_id) = klass->class_id << OP_CLASS_OFFSET;
467 _eo_class_mro_has(const Eo_Class *klass, const Eo_Class *find)
469 const Eo_Class **itr;
470 for (itr = klass->mro ; *itr ; itr++)
482 _eo_class_mro_add(Eina_List *mro, const Eo_Class *klass)
484 Eina_List *extn_pos = NULL;
485 Eina_Bool check_consistency = !mro;
489 mro = eina_list_append(mro, klass);
491 /* Recursively add extenions. */
493 Eo_Extension_Node *extn;
494 EINA_INLIST_FOREACH(klass->extensions, extn)
496 mro = _eo_class_mro_add(mro, extn->klass);
497 /* Not possible: if (!mro) return NULL; */
499 if (check_consistency)
501 extn_pos = eina_list_append(extn_pos, eina_list_last(mro));
506 /* Check if we can create a consistent mro. We only do it for the class
507 * we are working on (i.e no parents). */
508 if (check_consistency)
510 Eo_Extension_Node *extn;
512 Eina_List *itr = extn_pos;
513 EINA_INLIST_FOREACH(klass->extensions, extn)
515 /* Get the first one after the extension. */
516 Eina_List *extn_list = eina_list_next(eina_list_data_get(itr));
518 /* If we found the extension again. */
519 if (eina_list_data_find_list(extn_list, extn->klass))
522 ERR("Cannot create a consistent method resolution order for class '%s' because of '%s'.", klass->desc->name, extn->klass->desc->name);
526 itr = eina_list_next(itr);
531 mro = _eo_class_mro_add(mro, klass->parent);
537 _eo_class_mro_init(Eo_Class *klass)
539 Eina_List *mro = NULL;
541 DBG("Started creating MRO for class '%s'", klass->desc->name);
542 mro = _eo_class_mro_add(mro, klass);
547 /* Remove duplicates and make them the right order. */
549 Eina_List *itr1, *itr2, *itr2n;
551 itr1 = eina_list_last(mro);
554 itr2 = eina_list_prev(itr1);
558 itr2n = eina_list_prev(itr2);
560 if (eina_list_data_get(itr1) == eina_list_data_get(itr2))
562 mro = eina_list_remove_list(mro, itr2);
568 itr1 = eina_list_prev(itr1);
572 /* Copy the mro and free the list. */
574 const Eo_Class *kls_itr;
575 const Eo_Class **mro_itr;
576 klass->mro = calloc(sizeof(*klass->mro), eina_list_count(mro) + 1);
578 mro_itr = klass->mro;
580 EINA_LIST_FREE(mro, kls_itr)
582 *(mro_itr++) = kls_itr;
584 DBG("Added '%s' to MRO", kls_itr->desc->name);
589 DBG("Finished creating MRO for class '%s'", klass->desc->name);
595 _eo_class_constructor(Eo_Class *klass)
597 if (klass->constructed)
600 klass->constructed = EINA_TRUE;
602 if (klass->desc->class_constructor)
603 klass->desc->class_constructor(klass);
607 eo_class_funcs_set(Eo_Class *klass, const Eo_Op_Func_Description *func_descs)
609 EO_MAGIC_RETURN(klass, EO_CLASS_EINA_MAGIC);
611 const Eo_Op_Func_Description *itr;
615 for ( ; itr->op != 0 ; itr++)
617 const Eo_Op_Description *op_desc = _eo_op_id_desc_get(itr->op);
619 if (EINA_LIKELY(!op_desc || (itr->constant == op_desc->constant)))
621 dich_func_set(klass, itr->op, itr->func);
625 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);
632 eo_class_free(Eo_Class *klass)
634 if (klass->constructed)
636 if (klass->desc->class_destructor)
637 klass->desc->class_destructor(klass);
639 dich_func_clean_all(klass);
644 Eo_Extension_Node *extn = NULL;
645 EINA_INLIST_FOREACH_SAFE(klass->extensions, itrn, extn)
654 if (klass->extn_data_off)
655 free(klass->extn_data_off);
662 _eo_class_check_op_descs(const Eo_Class *klass)
664 const Eo_Class_Description *desc = klass->desc;
665 const Eo_Op_Description *itr;
668 if (desc->ops.count > 0)
670 if (!desc->ops.base_op_id)
672 ERR("Class '%s' has a non-zero ops count, but base_id is NULL.",
677 if (!desc->ops.descs)
679 ERR("Class '%s' has a non-zero ops count, but there are no descs.",
685 itr = desc->ops.descs;
686 for (i = 0 ; i < desc->ops.count ; i++, itr++)
688 if (itr->sub_op != i)
692 ERR("Wrong order in Ops description for class '%s'. Expected %d and got %d", desc->name, i, itr->sub_op);
696 ERR("Found too few Ops description for class '%s'. Expected %d descriptions, but found %d.", desc->name, desc->ops.count, i);
702 if (itr && itr->name)
704 ERR("Found extra Ops description for class '%s'. Expected %d descriptions, but found more.", desc->name, desc->ops.count);
711 EAPI const Eo_Class *
712 eo_class_new(const Eo_Class_Description *desc, const Eo_Class *parent, ...)
717 if (parent && !EINA_MAGIC_CHECK(parent, EO_CLASS_EINA_MAGIC))
719 EINA_MAGIC_FAIL(parent, EO_CLASS_EINA_MAGIC);
723 va_start(p_list, parent);
725 EINA_SAFETY_ON_NULL_RETURN_VAL(desc, NULL);
726 EINA_SAFETY_ON_NULL_RETURN_VAL(desc->name, NULL);
728 /* Check restrictions on Interface types. */
729 if (desc->type == EO_CLASS_TYPE_INTERFACE)
731 EINA_SAFETY_ON_FALSE_RETURN_VAL(!desc->constructor, NULL);
732 EINA_SAFETY_ON_FALSE_RETURN_VAL(!desc->destructor, NULL);
733 EINA_SAFETY_ON_FALSE_RETURN_VAL(!desc->class_constructor, NULL);
734 EINA_SAFETY_ON_FALSE_RETURN_VAL(!desc->class_destructor, NULL);
735 EINA_SAFETY_ON_FALSE_RETURN_VAL(!desc->data_size, NULL);
738 klass = calloc(1, sizeof(Eo_Class));
739 klass->parent = parent;
741 /* Handle class extensions */
743 Eo_Class *extn = NULL;
745 extn = va_arg(p_list, Eo_Class *);
748 switch (extn->desc->type)
750 case EO_CLASS_TYPE_REGULAR:
751 case EO_CLASS_TYPE_REGULAR_NO_INSTANT:
752 /* Use it like an interface. */
753 case EO_CLASS_TYPE_INTERFACE:
755 case EO_CLASS_TYPE_MIXIN:
757 Eo_Extension_Node *node = calloc(1, sizeof(*node));
760 eina_inlist_append(klass->extensions,
761 EINA_INLIST_GET(node));
766 extn = va_arg(p_list, Eo_Class *);
772 /* Handle the inheritance */
775 /* Verify the inheritance is allowed. */
776 switch (klass->desc->type)
778 case EO_CLASS_TYPE_REGULAR:
779 case EO_CLASS_TYPE_REGULAR_NO_INSTANT:
780 if ((klass->parent->desc->type != EO_CLASS_TYPE_REGULAR) &&
781 (klass->parent->desc->type != EO_CLASS_TYPE_REGULAR_NO_INSTANT))
783 ERR("Regular classes ('%s') aren't allowed to inherit from non-regular classes ('%s').", klass->desc->name, klass->parent->desc->name);
787 case EO_CLASS_TYPE_INTERFACE:
788 case EO_CLASS_TYPE_MIXIN:
789 if ((klass->parent->desc->type != EO_CLASS_TYPE_INTERFACE) &&
790 (klass->parent->desc->type != EO_CLASS_TYPE_MIXIN))
792 ERR("Non-regular classes ('%s') aren't allowed to inherit from regular classes ('%s').", klass->desc->name, klass->parent->desc->name);
799 /* Update the current offset. */
800 /* FIXME: Make sure this alignment is enough. */
801 klass->data_offset = klass->parent->data_offset +
802 EO_ALIGN_SIZE(klass->parent->desc->data_size);
805 if (!_eo_class_check_op_descs(klass))
810 if (!_eo_class_mro_init(klass))
815 /* create MIXIN offset table. */
817 const Eo_Class **mro_itr = klass->mro;
818 Eo_Extension_Data_Offset *extn_data_itr;
820 size_t extn_data_off = klass->data_offset +
821 EO_ALIGN_SIZE(klass->desc->data_size);
823 /* FIXME: Make faster... */
826 if (((*mro_itr)->desc->type == EO_CLASS_TYPE_MIXIN) &&
827 ((*mro_itr)->desc->data_size > 0))
834 klass->extn_data_off = calloc(extn_num + 1,
835 sizeof(*klass->extn_data_off));
837 extn_data_itr = klass->extn_data_off;
838 mro_itr = klass->mro;
841 if (((*mro_itr)->desc->type == EO_CLASS_TYPE_MIXIN) &&
842 ((*mro_itr)->desc->data_size > 0))
844 extn_data_itr->klass = *mro_itr;
845 extn_data_itr->offset = extn_data_off;
847 extn_data_off += EO_ALIGN_SIZE(extn_data_itr->klass->desc->data_size);
853 klass->extn_data_size = extn_data_off;
856 eina_lock_take(&_eo_class_creation_lock);
857 klass->class_id = ++_eo_classes_last_id;
859 /* FIXME: Handle errors. */
861 tmp = realloc(_eo_classes, _eo_classes_last_id * sizeof(*_eo_classes));
863 _eo_classes[klass->class_id - 1] = klass;
865 eina_lock_release(&_eo_class_creation_lock);
867 EINA_MAGIC_SET(klass, EO_CLASS_EINA_MAGIC);
869 _eo_class_base_op_init(klass);
871 _eo_class_constructor(klass);
878 eo_class_free(klass);
883 eo_add(const Eo_Class *klass, Eo *parent)
885 EO_MAGIC_RETURN_VAL(klass, EO_CLASS_EINA_MAGIC, NULL);
887 if (parent) EO_MAGIC_RETURN_VAL(parent, EO_EINA_MAGIC, NULL);
889 if (EINA_UNLIKELY(klass->desc->type != EO_CLASS_TYPE_REGULAR))
891 ERR("Class '%s' is not instantiate-able. Aborting.", klass->desc->name);
895 Eo *obj = calloc(1, EO_ALIGN_SIZE(sizeof(*obj)) +
896 (klass->data_offset + EO_ALIGN_SIZE(klass->desc->data_size)) +
897 klass->extn_data_size);
899 obj->parent = parent;
903 Eo_Kls_Itr prev_state;
905 _eo_kls_itr_init(obj, EO_NOOP, &prev_state);
906 eo_constructor_error_unset(obj);
908 EINA_MAGIC_SET(obj, EO_EINA_MAGIC);
910 _eo_constructor(obj, klass);
912 if (EINA_UNLIKELY(eo_constructor_error_get(obj)))
914 ERR("Type '%s' - One of the object constructors have failed.", klass->desc->name);
918 if (EINA_UNLIKELY(!_eo_kls_itr_reached_end(obj)))
920 ERR("Type '%s' - Not all of the object constructors have been executed.", klass->desc->name);
923 _eo_kls_itr_end(obj, &prev_state);
929 _eo_kls_itr_end(obj, &prev_state);
930 /* Unref twice, once for the ref above, and once for the basic object ref. */
945 eo_xref_internal(Eo *obj, const Eo *ref_obj, const char *file, int line)
947 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, obj);
952 Eo_Xref_Node *xref = calloc(1, sizeof(*xref));
953 xref->ref_obj = ref_obj;
957 /* FIXME: Make it sorted. */
958 obj->xrefs = eina_inlist_prepend(obj->xrefs, EINA_INLIST_GET(xref));
969 eo_xunref(Eo *obj, const Eo *ref_obj)
971 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
973 Eo_Xref_Node *xref = NULL;
974 EINA_INLIST_FOREACH(obj->xrefs, xref)
976 if (xref->ref_obj == ref_obj)
982 obj->xrefs = eina_inlist_remove(obj->xrefs, EINA_INLIST_GET(xref));
987 ERR("ref_obj (%p) does not reference obj (%p). Aborting unref.", ref_obj, obj);
999 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, obj);
1006 _eo_del_internal(Eo *obj)
1010 /* We need that for the event callbacks that may ref/unref. */
1013 eo_event_callback_call(obj, EO_EV_DEL, NULL);
1014 obj->delete = EINA_TRUE;
1018 const Eo_Class *klass = eo_class_get(obj);
1019 Eo_Kls_Itr prev_state;
1021 _eo_kls_itr_init(obj, EO_NOOP, &prev_state);
1022 eo_constructor_error_unset(obj);
1023 _eo_destructor(obj, klass);
1024 if (eo_constructor_error_get(obj))
1026 ERR("Type '%s' - One of the object destructors have failed.", klass->desc->name);
1029 if (!_eo_kls_itr_reached_end(obj))
1031 ERR("Type '%s' - Not all of the object destructors have been executed.", klass->desc->name);
1033 _eo_kls_itr_end(obj, &prev_state);
1034 /*FIXME: add eo_class_unref(klass) ? - just to clear the caches. */
1036 Eina_List *itr, *itr_n;
1038 EINA_LIST_FOREACH_SAFE(obj->composite_objects, itr, itr_n, emb_obj)
1040 eo_composite_object_detach(obj, emb_obj);
1047 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1049 if (--(obj->refcount) == 0)
1051 _eo_del_internal(obj);
1052 /* We need that for the event callbacks that may ref/unref. */
1055 eo_event_callback_call(obj, EO_EV_FREE, NULL);
1060 /* If for some reason it's not empty, clear it. */
1063 WRN("obj->xrefs is not empty, possibly a bug, please report. - An error will be reported for each xref in the stack.");
1064 Eina_Inlist *nitr = obj->xrefs->next;
1065 free(EINA_INLIST_CONTAINER_GET(obj->xrefs, Eo_Xref_Node));
1070 _eo_callback_remove_all(obj);
1077 eo_ref_get(const Eo *obj)
1079 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, 0);
1081 return obj->refcount;
1087 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1089 _eo_del_internal(obj);
1094 eo_parent_get(Eo *obj)
1096 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, NULL);
1102 eo_constructor_error_set(Eo *obj)
1104 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1106 obj->construct_error = EINA_TRUE;
1110 eo_constructor_error_unset(Eo *obj)
1112 obj->construct_error = EINA_FALSE;
1116 eo_constructor_error_get(const Eo *obj)
1118 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, EINA_TRUE);
1120 return obj->construct_error;
1124 _eo_constructor_default(Eo *obj)
1126 eo_constructor_super(obj);
1130 _eo_destructor_default(Eo *obj)
1132 eo_destructor_super(obj);
1136 _eo_constructor(Eo *obj, const Eo_Class *klass)
1141 if (klass->desc->constructor)
1142 klass->desc->constructor(obj, _eo_data_get(obj, klass));
1144 _eo_constructor_default(obj);
1148 _eo_destructor(Eo *obj, const Eo_Class *klass)
1153 if (klass->desc->destructor)
1154 klass->desc->destructor(obj, _eo_data_get(obj, klass));
1156 _eo_destructor_default(obj);
1160 eo_constructor_super(Eo *obj)
1162 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1164 _eo_constructor(obj, _eo_kls_itr_next(obj, EO_NOOP));
1168 eo_destructor_super(Eo *obj)
1170 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1172 _eo_destructor(obj, _eo_kls_itr_next(obj, EO_NOOP));
1175 static inline void *
1176 _eo_data_get(const Eo *obj, const Eo_Class *klass)
1178 if (EINA_LIKELY(klass->desc->data_size > 0))
1180 if (EINA_UNLIKELY(klass->desc->type == EO_CLASS_TYPE_MIXIN))
1182 Eo_Extension_Data_Offset *doff_itr =
1183 eo_class_get(obj)->extn_data_off;
1188 while (doff_itr->klass)
1190 if (doff_itr->klass == klass)
1191 return ((char *) obj) + EO_ALIGN_SIZE(sizeof(*obj)) +
1198 return ((char *) obj) + EO_ALIGN_SIZE(sizeof(*obj)) +
1207 eo_data_get(const Eo *obj, const Eo_Class *klass)
1210 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, NULL);
1213 if (!_eo_class_mro_has(obj->klass, klass))
1215 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);
1220 ret = _eo_data_get(obj, klass);
1222 if (!ret && (klass->desc->data_size == 0))
1224 ERR("Tried getting data of class '%s', but it has none..", klass->desc->name);
1233 const char *log_dom = "eo";
1234 if (_eo_init_count++ > 0)
1240 _eo_classes_last_id = 0;
1241 _eo_log_dom = eina_log_domain_register(log_dom, EINA_COLOR_LIGHTBLUE);
1242 if (_eo_log_dom < 0)
1244 EINA_LOG_ERR("Could not register log domain: %s", log_dom);
1248 if (!eina_lock_new(&_eo_class_creation_lock))
1250 EINA_LOG_ERR("Could not init lock.");
1254 eina_magic_string_static_set(EO_EINA_MAGIC, EO_EINA_MAGIC_STR);
1255 eina_magic_string_static_set(EO_CLASS_EINA_MAGIC,
1256 EO_CLASS_EINA_MAGIC_STR);
1265 Eo_Class **cls_itr = _eo_classes;
1267 if (--_eo_init_count > 0)
1270 for (i = 0 ; i < _eo_classes_last_id ; i++, cls_itr++)
1273 eo_class_free(*cls_itr);
1279 eina_lock_free(&_eo_class_creation_lock);
1281 eina_log_domain_unregister(_eo_log_dom);
1289 eo_composite_object_attach(Eo *obj, Eo *emb_obj)
1291 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1292 EO_MAGIC_RETURN(emb_obj, EO_EINA_MAGIC);
1294 eo_xref(emb_obj, obj);
1295 obj->composite_objects = eina_list_prepend(obj->composite_objects, emb_obj);
1299 eo_composite_object_detach(Eo *obj, Eo *emb_obj)
1301 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1302 EO_MAGIC_RETURN(emb_obj, EO_EINA_MAGIC);
1304 obj->composite_objects = eina_list_remove(obj->composite_objects, emb_obj);
1305 eo_xunref(emb_obj, obj);
1309 eo_composite_is(Eo *emb_obj)
1311 if (!EINA_MAGIC_CHECK(emb_obj, EO_EINA_MAGIC))
1313 EINA_MAGIC_FAIL(emb_obj, EO_EINA_MAGIC);
1317 Eo *obj = eo_parent_get(emb_obj);
1324 EINA_LIST_FOREACH(obj->composite_objects, itr, tmp)
1334 struct _Eo_Callback_Description
1337 const Eo_Event_Description *event;
1340 Eo_Callback_Priority priority;
1341 Eina_Bool delete_me : 1;
1344 /* Actually remove, doesn't care about walking list, or delete_me */
1346 _eo_callback_remove(Eo *obj, Eo_Callback_Description *cb)
1348 obj->callbacks = eina_inlist_remove(obj->callbacks,
1349 EINA_INLIST_GET(cb));
1353 /* Actually remove, doesn't care about walking list, or delete_me */
1355 _eo_callback_remove_all(Eo *obj)
1358 Eo_Callback_Description *cb = NULL;
1359 EINA_INLIST_FOREACH_SAFE(obj->callbacks, initr, cb)
1361 _eo_callback_remove(obj, cb);
1366 _eo_callbacks_clear(Eo *obj)
1369 Eo_Callback_Description *cb = NULL;
1371 /* Abort if we are currently walking the list. */
1372 if (obj->walking_list > 0)
1375 EINA_INLIST_FOREACH_SAFE(obj->callbacks, itn, cb)
1379 _eo_callback_remove(obj, cb);
1385 _callback_priority_cmp(const void *_a, const void *_b)
1387 const Eo_Callback_Description *a, *b;
1388 a = (const Eo_Callback_Description *) _a;
1389 b = (const Eo_Callback_Description *) _b;
1390 if (a->priority < b->priority)
1397 eo_event_callback_priority_add(Eo *obj,
1398 const Eo_Event_Description *desc,
1399 Eo_Callback_Priority priority,
1403 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, EINA_FALSE);
1405 Eo_Callback_Description *cb = calloc(1, sizeof(*cb));
1408 cb->func_data = (void *) data;
1409 cb->priority = priority;
1410 obj->callbacks = eina_inlist_sorted_insert(obj->callbacks,
1411 EINA_INLIST_GET(cb), _callback_priority_cmp);
1413 eo_event_callback_call(obj, EO_EV_CALLBACK_ADD, desc);
1419 eo_event_callback_del_lazy(Eo *obj, const Eo_Event_Description *desc, Eo_Event_Cb func)
1421 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, NULL);
1424 Eo_Callback_Description *cb;
1425 EINA_INLIST_FOREACH(obj->callbacks, cb)
1427 if ((cb->event == desc) && (cb->func == func))
1431 data = cb->func_data;
1432 cb->delete_me = EINA_TRUE;
1433 _eo_callbacks_clear(obj);
1442 eo_event_callback_call(obj, EO_EV_CALLBACK_DEL, desc);
1447 eo_event_callback_del(Eo *obj, const Eo_Event_Description *desc, Eo_Event_Cb func, const void *user_data)
1449 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, NULL);
1452 Eo_Callback_Description *cb;
1453 EINA_INLIST_FOREACH(obj->callbacks, cb)
1455 if ((cb->event == desc) && (cb->func == func) &&
1456 (cb->func_data == user_data))
1460 data = cb->func_data;
1461 cb->delete_me = EINA_TRUE;
1462 _eo_callbacks_clear(obj);
1471 eo_event_callback_call(obj, EO_EV_CALLBACK_DEL, desc);
1476 eo_event_callback_call(Eo *obj, const Eo_Event_Description *desc,
1477 const void *event_info)
1479 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, EINA_FALSE);
1481 Eina_Bool ret = EINA_TRUE;
1482 Eo_Callback_Description *cb;
1485 obj->walking_list++;
1487 EINA_INLIST_FOREACH(obj->callbacks, cb)
1489 if (!cb->delete_me && (cb->event == desc))
1491 /* Abort callback calling if the func says so. */
1492 if (!cb->func((void *) cb->func_data, obj, desc,
1493 (void *) event_info))
1502 obj->walking_list--;
1503 _eo_callbacks_clear(obj);
1510 _eo_event_forwarder_callback(void *data, Eo *obj, const Eo_Event_Description *desc, void *event_info)
1513 Eo *new_obj = (Eo *) data;
1514 return eo_event_callback_call(new_obj, desc, event_info);
1517 /* FIXME: Change default priority? Maybe call later? */
1519 eo_event_callback_forwarder_add(Eo *obj, const Eo_Event_Description *desc, Eo *new_obj)
1521 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, EINA_FALSE);
1522 EO_MAGIC_RETURN_VAL(new_obj, EO_EINA_MAGIC, EINA_FALSE);
1524 return eo_event_callback_add(obj, desc, _eo_event_forwarder_callback, new_obj);
1528 eo_event_callback_forwarder_del(Eo *obj, const Eo_Event_Description *desc, Eo *new_obj)
1530 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, EINA_FALSE);
1531 EO_MAGIC_RETURN_VAL(new_obj, EO_EINA_MAGIC, EINA_FALSE);
1533 eo_event_callback_del(obj, desc, _eo_event_forwarder_callback, new_obj);