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_DELETED_EINA_MAGIC 0xa186bb32 /* Nothing magical about this number. */
37 #define EO_DELETED_EINA_MAGIC_STR "Eo - Deleted object"
38 #define EO_CLASS_EINA_MAGIC 0xa186ba32 /* Nothing magical about this number. */
39 #define EO_CLASS_EINA_MAGIC_STR "Eo Class"
41 #define EO_MAGIC_RETURN_VAL(d, magic, ret) \
43 if (!EINA_MAGIC_CHECK(d, magic)) \
45 EINA_MAGIC_FAIL(d, magic); \
50 #define EO_MAGIC_RETURN(d, magic) \
52 if (!EINA_MAGIC_CHECK(d, magic)) \
54 EINA_MAGIC_FAIL(d, magic); \
62 const Eo_Class *klass;
68 Eina_List *composite_objects;
70 Eina_Inlist *callbacks;
76 Eina_Bool construct_error:1;
80 /* Dich search, split to 0xff 0xff 0xffff */
82 #define DICH_CHAIN1_MASK (0xffff)
83 #define DICH_CHAIN_LAST_MASK (0xffff)
84 #define DICH_CHAIN1(x) (((x) >> 16) & DICH_CHAIN1_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); \
93 #define OP_SUB_ID_GET(op) ((op) & 0xffff)
95 #define ID_CLASS_GET(id) ({ \
96 (Eo_Class *) ((id <= _eo_classes_last_id) && (id > 0)) ? \
97 (_eo_classes[id - 1]) : NULL; \
100 #define EO_ALIGN_SIZE(size) \
101 ((size) + (sizeof(void *) - ((size) % sizeof(void *))))
103 /* Structure of Eo_Op is:
108 typedef struct _Dich_Chain1 Dich_Chain1;
112 eo_op_func_type func;
118 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; /**< The size is class_id */
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;
153 _dich_chain_alloc(Dich_Chain1 *chain1, size_t num_ops)
157 chain1->funcs = calloc(num_ops, sizeof(*(chain1->funcs)));
162 _dich_copy_all(Eo_Class *dst, const Eo_Class *src)
164 if (!src->chain) return;
168 dst->chain = calloc(dst->class_id, sizeof(*dst->chain));
172 const Dich_Chain1 *sc1 = src->chain;
173 Dich_Chain1 *dc1 = dst->chain;
174 for (i = 0 ; i < src->class_id ; i++, sc1++, dc1++)
179 const Eo_Class *op_klass = ID_CLASS_GET(i + 1);
180 size_t num_ops = op_klass->desc->ops.count;
181 _dich_chain_alloc(dc1, num_ops);
183 const op_type_funcs *sf = sc1->funcs;
184 op_type_funcs *df = dc1->funcs;
185 for (j = 0 ; j < num_ops ; j++, df++, sf++)
189 memcpy(df, sf, sizeof(*df));
196 static inline const op_type_funcs *
197 _dich_func_get(const Eo_Class *klass, Eo_Op op)
199 if (!klass->chain) return NULL;
201 size_t idx1 = DICH_CHAIN1(op) - 1;
202 if (idx1 >= klass->class_id) return NULL;
203 const Dich_Chain1 *chain1 = &klass->chain[idx1];
204 if (!chain1->funcs) return NULL;
206 size_t idxl = DICH_CHAIN_LAST(op);
207 /* num_ops is calculated from the class. */
208 const Eo_Class *op_klass = ID_CLASS_GET(idx1 + 1);
209 if (!op_klass || (idxl >= op_klass->desc->ops.count))
212 return &chain1->funcs[idxl];
216 _dich_func_set(Eo_Class *klass, Eo_Op op, eo_op_func_type func)
218 const Eo_Class *op_klass = OP_CLASS_GET(op);
221 /* Verify op is valid. */
224 /* num_ops is calculated from the class. */
225 num_ops = op_klass->desc->ops.count;
226 if (DICH_CHAIN_LAST(op) >= num_ops)
228 ERR("OP %x is too big for the domain '%s', expected value < %x.",
229 op, op_klass->desc->name, op_klass->desc->ops.count);
235 ERR("OP %x is from an illegal class.", op);
241 klass->chain = calloc(klass->class_id, sizeof(*klass->chain));
244 size_t idx1 = DICH_CHAIN1(op) - 1;
245 Dich_Chain1 *chain1 = &klass->chain[idx1];
246 _dich_chain_alloc(chain1, num_ops);
247 chain1->funcs[DICH_CHAIN_LAST(op)].func = func;
248 chain1->funcs[DICH_CHAIN_LAST(op)].src = klass;
252 _dich_func_clean_all(Eo_Class *klass)
255 Dich_Chain1 *chain1 = klass->chain;
260 for (i = 0 ; i < klass->class_id ; i++, chain1++)
271 static const Eo_Op_Description noop_desc =
272 EO_OP_DESCRIPTION(EO_NOOP, "", "No operation.");
274 static const Eo_Op_Description *
275 _eo_op_id_desc_get(Eo_Op op)
277 const Eo_Class *klass = OP_CLASS_GET(op);
278 Eo_Op sub_id = OP_SUB_ID_GET(op);
283 if (klass && (sub_id < klass->desc->ops.count))
284 return klass->desc->ops.descs + sub_id;
290 _eo_op_id_name_get(Eo_Op op)
292 const Eo_Op_Description *desc = _eo_op_id_desc_get(op);
293 return (desc) ? desc->name : NULL;
297 _eo_kls_itr_init(Eo *obj, Eo_Op op, Eo_Kls_Itr *prev_state)
299 prev_state->op = obj->mro_itr.op;
300 prev_state->kls_itr = obj->mro_itr.kls_itr;
302 /* If we are in a constructor/destructor or we changed an op - init. */
303 if ((op == EO_NOOP) || (obj->mro_itr.op != op))
305 obj->mro_itr.op = op;
306 obj->mro_itr.kls_itr = obj->klass->mro;
311 _eo_kls_itr_end(Eo *obj, Eo_Kls_Itr *prev_state)
313 if (obj->mro_itr.op != prev_state->op)
315 obj->mro_itr.op = prev_state->op;
316 obj->mro_itr.kls_itr = prev_state->kls_itr;
320 static inline const Eo_Class *
321 _eo_kls_itr_get(Eo *obj)
323 return (obj->mro_itr.kls_itr) ? *(obj->mro_itr.kls_itr) : NULL;
326 static inline const Eo_Class *
327 _eo_kls_itr_next(Eo *obj, Eo_Op op)
329 if (obj->mro_itr.op != op)
331 Eo_Op node_op = obj->mro_itr.op;
332 ERR("Called with op %d ('%s') while expecting: %d ('%s'). This probaly means you called eo_*_super functions from a wrong place.",
333 op, _eo_op_id_name_get(op),
334 node_op, _eo_op_id_name_get(node_op));
338 const Eo_Class **kls_itr = obj->mro_itr.kls_itr;
343 const op_type_funcs *fsrc = _dich_func_get(*kls_itr, op);
345 while (*kls_itr && (*(kls_itr++) != fsrc->src))
353 obj->mro_itr.kls_itr = kls_itr;
362 static inline Eina_Bool
363 _eo_kls_itr_reached_end(const Eo *obj)
365 const Eo_Class **kls_itr = obj->mro_itr.kls_itr;
366 return !(*kls_itr && *(kls_itr + 1));
370 _eo_op_internal(Eo *obj, Eina_Bool constant, Eo_Op op, va_list *p_list)
372 const Eo_Class *klass;
373 Eina_Bool ret = EINA_FALSE;
375 const Eo_Op_Description *op_desc = _eo_op_id_desc_get(op);
378 ((constant == EINA_TRUE) && (op_desc->constant == EINA_FALSE)))
380 ERR("Tried calling non-const or non-existant op '%s' (%d) from a const (query) function.", (op_desc) ? op_desc->name : NULL, op);
384 Eo_Kls_Itr prev_state;
385 _eo_kls_itr_init(obj, op, &prev_state);
386 klass = _eo_kls_itr_get(obj);
389 const op_type_funcs *func = _dich_func_get(klass, op);
391 if (func && func->func)
393 func->func(obj, _eo_data_get(obj, func->src), p_list);
399 /* Try composite objects */
403 EINA_LIST_FOREACH(obj->composite_objects, itr, emb_obj)
405 if (_eo_op_internal(emb_obj, constant, op, p_list))
414 _eo_kls_itr_end(obj, &prev_state);
419 eo_do_internal(Eo *obj, Eina_Bool constant, ...)
421 Eina_Bool ret = EINA_TRUE;
425 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, EINA_FALSE);
429 va_start(p_list, constant);
431 op = va_arg(p_list, Eo_Op);
434 if (!_eo_op_internal(obj, constant, op, &p_list))
436 const Eo_Class *op_klass = OP_CLASS_GET(op);
437 const char *_dom_name = (op_klass) ? op_klass->desc->name : NULL;
438 ERR("Can't find func for op %x ('%s' of domain '%s') for class '%s'. Aborting.",
439 op, _eo_op_id_name_get(op), _dom_name,
440 obj->klass->desc->name);
444 op = va_arg(p_list, Eo_Op);
454 eo_do_super_internal(Eo *obj, Eina_Bool constant, Eo_Op op, ...)
456 const Eo_Class *obj_klass;
457 Eina_Bool ret = EINA_TRUE;
459 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, EINA_FALSE);
461 /* Advance the kls itr. */
462 obj_klass = _eo_kls_itr_next(obj, op);
464 if (obj->mro_itr.op != op)
467 va_start(p_list, op);
468 if (!_eo_op_internal(obj, constant, op, &p_list))
470 const Eo_Class *op_klass = OP_CLASS_GET(op);
471 const char *_dom_name = (op_klass) ? op_klass->desc->name : NULL;
472 ERR("Can't find func for op %x ('%s' of domain '%s') for class '%s'. Aborting.",
473 op, _eo_op_id_name_get(op), _dom_name,
474 (obj_klass) ? obj_klass->desc->name : NULL);
482 EAPI const Eo_Class *
483 eo_class_get(const Eo *obj)
485 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, EINA_FALSE);
491 eo_class_name_get(const Eo_Class *klass)
493 EO_MAGIC_RETURN_VAL(klass, EO_CLASS_EINA_MAGIC, NULL);
495 return klass->desc->name;
499 _eo_class_base_op_init(Eo_Class *klass)
501 const Eo_Class_Description *desc = klass->desc;
502 if (!desc || !desc->ops.base_op_id)
505 /* FIXME: Depends on values defined above! */
506 *(desc->ops.base_op_id) = klass->class_id << OP_CLASS_OFFSET;
511 _eo_class_mro_has(const Eo_Class *klass, const Eo_Class *find)
513 const Eo_Class **itr;
514 for (itr = klass->mro ; *itr ; itr++)
527 _eo_class_mro_add(Eina_List *mro, const Eo_Class *klass)
529 Eina_List *extn_pos = NULL;
530 Eina_Bool check_consistency = !mro;
534 mro = eina_list_append(mro, klass);
536 /* Recursively add extenions. */
538 Eo_Extension_Node *extn;
539 EINA_INLIST_FOREACH(klass->extensions, extn)
541 mro = _eo_class_mro_add(mro, extn->klass);
542 /* Not possible: if (!mro) return NULL; */
544 if (check_consistency)
546 extn_pos = eina_list_append(extn_pos, eina_list_last(mro));
551 /* Check if we can create a consistent mro. We only do it for the class
552 * we are working on (i.e no parents). */
553 if (check_consistency)
555 Eo_Extension_Node *extn;
557 Eina_List *itr = extn_pos;
558 EINA_INLIST_FOREACH(klass->extensions, extn)
560 /* Get the first one after the extension. */
561 Eina_List *extn_list = eina_list_next(eina_list_data_get(itr));
563 /* If we found the extension again. */
564 if (eina_list_data_find_list(extn_list, extn->klass))
567 ERR("Cannot create a consistent method resolution order for class '%s' because of '%s'.", klass->desc->name, extn->klass->desc->name);
571 itr = eina_list_next(itr);
576 mro = _eo_class_mro_add(mro, klass->parent);
582 _eo_class_mro_init(Eo_Class *klass)
584 Eina_List *mro = NULL;
586 DBG("Started creating MRO for class '%s'", klass->desc->name);
587 mro = _eo_class_mro_add(mro, klass);
592 /* Remove duplicates and make them the right order. */
594 Eina_List *itr1, *itr2, *itr2n;
596 itr1 = eina_list_last(mro);
599 itr2 = eina_list_prev(itr1);
603 itr2n = eina_list_prev(itr2);
605 if (eina_list_data_get(itr1) == eina_list_data_get(itr2))
607 mro = eina_list_remove_list(mro, itr2);
613 itr1 = eina_list_prev(itr1);
617 /* Copy the mro and free the list. */
619 const Eo_Class *kls_itr;
620 const Eo_Class **mro_itr;
621 klass->mro = calloc(sizeof(*klass->mro), eina_list_count(mro) + 1);
623 mro_itr = klass->mro;
625 EINA_LIST_FREE(mro, kls_itr)
627 *(mro_itr++) = kls_itr;
629 DBG("Added '%s' to MRO", kls_itr->desc->name);
634 DBG("Finished creating MRO for class '%s'", klass->desc->name);
640 _eo_class_constructor(Eo_Class *klass)
642 if (klass->constructed)
645 klass->constructed = EINA_TRUE;
647 if (klass->desc->class_constructor)
648 klass->desc->class_constructor(klass);
652 eo_class_funcs_set(Eo_Class *klass, const Eo_Op_Func_Description *func_descs)
654 EO_MAGIC_RETURN(klass, EO_CLASS_EINA_MAGIC);
656 const Eo_Op_Func_Description *itr;
660 for ( ; itr->op != 0 ; itr++)
662 const Eo_Op_Description *op_desc = _eo_op_id_desc_get(itr->op);
664 if (EINA_LIKELY(!op_desc || (itr->constant == op_desc->constant)))
666 _dich_func_set(klass, itr->op, itr->func);
670 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);
677 eo_class_free(Eo_Class *klass)
679 if (klass->constructed)
681 if (klass->desc->class_destructor)
682 klass->desc->class_destructor(klass);
684 _dich_func_clean_all(klass);
689 Eo_Extension_Node *extn = NULL;
690 EINA_INLIST_FOREACH_SAFE(klass->extensions, itrn, extn)
699 if (klass->extn_data_off)
700 free(klass->extn_data_off);
707 _eo_class_check_op_descs(const Eo_Class *klass)
709 const Eo_Class_Description *desc = klass->desc;
710 const Eo_Op_Description *itr;
713 if (desc->ops.count > 0)
715 if (!desc->ops.base_op_id)
717 ERR("Class '%s' has a non-zero ops count, but base_id is NULL.",
722 if (!desc->ops.descs)
724 ERR("Class '%s' has a non-zero ops count, but there are no descs.",
730 itr = desc->ops.descs;
731 for (i = 0 ; i < desc->ops.count ; i++, itr++)
733 if (itr->sub_op != i)
737 ERR("Wrong order in Ops description for class '%s'. Expected %d and got %d", desc->name, i, itr->sub_op);
741 ERR("Found too few Ops description for class '%s'. Expected %d descriptions, but found %d.", desc->name, desc->ops.count, i);
747 if (itr && itr->name)
749 ERR("Found extra Ops description for class '%s'. Expected %d descriptions, but found more.", desc->name, desc->ops.count);
756 EAPI const Eo_Class *
757 eo_class_new(const Eo_Class_Description *desc, const Eo_Class *parent, ...)
762 if (parent && !EINA_MAGIC_CHECK(parent, EO_CLASS_EINA_MAGIC))
764 EINA_MAGIC_FAIL(parent, EO_CLASS_EINA_MAGIC);
768 va_start(p_list, parent);
770 EINA_SAFETY_ON_NULL_RETURN_VAL(desc, NULL);
771 EINA_SAFETY_ON_NULL_RETURN_VAL(desc->name, NULL);
773 /* Check restrictions on Interface types. */
774 if (desc->type == EO_CLASS_TYPE_INTERFACE)
776 EINA_SAFETY_ON_FALSE_RETURN_VAL(!desc->constructor, NULL);
777 EINA_SAFETY_ON_FALSE_RETURN_VAL(!desc->destructor, NULL);
778 EINA_SAFETY_ON_FALSE_RETURN_VAL(!desc->class_constructor, NULL);
779 EINA_SAFETY_ON_FALSE_RETURN_VAL(!desc->class_destructor, NULL);
780 EINA_SAFETY_ON_FALSE_RETURN_VAL(!desc->data_size, NULL);
783 klass = calloc(1, sizeof(Eo_Class));
784 klass->parent = parent;
786 /* Handle class extensions */
788 Eo_Class *extn = NULL;
790 extn = va_arg(p_list, Eo_Class *);
793 switch (extn->desc->type)
795 case EO_CLASS_TYPE_REGULAR:
796 case EO_CLASS_TYPE_REGULAR_NO_INSTANT:
797 /* Use it like an interface. */
798 case EO_CLASS_TYPE_INTERFACE:
800 case EO_CLASS_TYPE_MIXIN:
802 Eo_Extension_Node *node = calloc(1, sizeof(*node));
805 eina_inlist_append(klass->extensions,
806 EINA_INLIST_GET(node));
811 extn = va_arg(p_list, Eo_Class *);
817 /* Handle the inheritance */
820 /* Verify the inheritance is allowed. */
821 switch (klass->desc->type)
823 case EO_CLASS_TYPE_REGULAR:
824 case EO_CLASS_TYPE_REGULAR_NO_INSTANT:
825 if ((klass->parent->desc->type != EO_CLASS_TYPE_REGULAR) &&
826 (klass->parent->desc->type != EO_CLASS_TYPE_REGULAR_NO_INSTANT))
828 ERR("Regular classes ('%s') aren't allowed to inherit from non-regular classes ('%s').", klass->desc->name, klass->parent->desc->name);
832 case EO_CLASS_TYPE_INTERFACE:
833 case EO_CLASS_TYPE_MIXIN:
834 if ((klass->parent->desc->type != EO_CLASS_TYPE_INTERFACE) &&
835 (klass->parent->desc->type != EO_CLASS_TYPE_MIXIN))
837 ERR("Non-regular classes ('%s') aren't allowed to inherit from regular classes ('%s').", klass->desc->name, klass->parent->desc->name);
844 /* Update the current offset. */
845 /* FIXME: Make sure this alignment is enough. */
846 klass->data_offset = klass->parent->data_offset +
847 EO_ALIGN_SIZE(klass->parent->desc->data_size);
850 if (!_eo_class_check_op_descs(klass))
855 if (!_eo_class_mro_init(klass))
860 /* create MIXIN offset table. */
862 const Eo_Class **mro_itr = klass->mro;
863 Eo_Extension_Data_Offset *extn_data_itr;
865 size_t extn_data_off = klass->data_offset +
866 EO_ALIGN_SIZE(klass->desc->data_size);
868 /* FIXME: Make faster... */
871 if (((*mro_itr)->desc->type == EO_CLASS_TYPE_MIXIN) &&
872 ((*mro_itr)->desc->data_size > 0))
879 klass->extn_data_off = calloc(extn_num + 1,
880 sizeof(*klass->extn_data_off));
882 extn_data_itr = klass->extn_data_off;
883 mro_itr = klass->mro;
886 if (((*mro_itr)->desc->type == EO_CLASS_TYPE_MIXIN) &&
887 ((*mro_itr)->desc->data_size > 0))
889 extn_data_itr->klass = *mro_itr;
890 extn_data_itr->offset = extn_data_off;
892 extn_data_off += EO_ALIGN_SIZE(extn_data_itr->klass->desc->data_size);
898 klass->extn_data_size = extn_data_off;
901 eina_lock_take(&_eo_class_creation_lock);
902 klass->class_id = ++_eo_classes_last_id;
904 /* FIXME: Handle errors. */
906 tmp = realloc(_eo_classes, _eo_classes_last_id * sizeof(*_eo_classes));
908 _eo_classes[klass->class_id - 1] = klass;
910 eina_lock_release(&_eo_class_creation_lock);
912 EINA_MAGIC_SET(klass, EO_CLASS_EINA_MAGIC);
914 /* Flatten the function array */
916 const Eo_Class **mro_itr = klass->mro;
917 for ( ; *mro_itr ; mro_itr++)
920 for ( mro_itr-- ; mro_itr >= klass->mro ; mro_itr--)
922 _dich_copy_all(klass, *mro_itr);
926 _eo_class_base_op_init(klass);
928 _eo_class_constructor(klass);
935 eo_class_free(klass);
940 eo_add(const Eo_Class *klass, Eo *parent)
942 EO_MAGIC_RETURN_VAL(klass, EO_CLASS_EINA_MAGIC, NULL);
944 if (parent) EO_MAGIC_RETURN_VAL(parent, EO_EINA_MAGIC, NULL);
946 if (EINA_UNLIKELY(klass->desc->type != EO_CLASS_TYPE_REGULAR))
948 ERR("Class '%s' is not instantiate-able. Aborting.", klass->desc->name);
952 Eo *obj = calloc(1, EO_ALIGN_SIZE(sizeof(*obj)) +
953 (klass->data_offset + EO_ALIGN_SIZE(klass->desc->data_size)) +
954 klass->extn_data_size);
956 obj->parent = parent;
960 Eo_Kls_Itr prev_state;
962 _eo_kls_itr_init(obj, EO_NOOP, &prev_state);
963 eo_constructor_error_unset(obj);
965 EINA_MAGIC_SET(obj, EO_EINA_MAGIC);
967 _eo_constructor(obj, klass);
969 if (EINA_UNLIKELY(eo_constructor_error_get(obj)))
971 ERR("Type '%s' - One of the object constructors have failed.", klass->desc->name);
975 if (EINA_UNLIKELY(!_eo_kls_itr_reached_end(obj)))
977 ERR("Type '%s' - Not all of the object constructors have been executed.", klass->desc->name);
980 _eo_kls_itr_end(obj, &prev_state);
986 _eo_kls_itr_end(obj, &prev_state);
987 /* Unref twice, once for the ref above, and once for the basic object ref. */
1002 eo_xref_internal(Eo *obj, const Eo *ref_obj, const char *file, int line)
1004 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, obj);
1009 Eo_Xref_Node *xref = calloc(1, sizeof(*xref));
1010 xref->ref_obj = ref_obj;
1014 /* FIXME: Make it sorted. */
1015 obj->xrefs = eina_inlist_prepend(obj->xrefs, EINA_INLIST_GET(xref));
1026 eo_xunref(Eo *obj, const Eo *ref_obj)
1028 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1030 Eo_Xref_Node *xref = NULL;
1031 EINA_INLIST_FOREACH(obj->xrefs, xref)
1033 if (xref->ref_obj == ref_obj)
1039 obj->xrefs = eina_inlist_remove(obj->xrefs, EINA_INLIST_GET(xref));
1044 ERR("ref_obj (%p) does not reference obj (%p). Aborting unref.", ref_obj, obj);
1063 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, obj);
1065 return _eo_ref(obj);
1069 _eo_del_internal(Eo *obj)
1073 /* We need that for the event callbacks that may ref/unref. */
1076 eo_event_callback_call(obj, EO_EV_DEL, NULL);
1077 obj->del = 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);
1110 if (--(obj->refcount) == 0)
1112 _eo_del_internal(obj);
1113 /* We need that for the event callbacks that may ref/unref. */
1116 eo_event_callback_call(obj, EO_EV_FREE, NULL);
1121 /* If for some reason it's not empty, clear it. */
1124 WRN("obj->xrefs is not empty, possibly a bug, please report. - An error will be reported for each xref in the stack.");
1125 Eina_Inlist *nitr = obj->xrefs->next;
1126 free(EINA_INLIST_CONTAINER_GET(obj->xrefs, Eo_Xref_Node));
1131 _eo_callback_remove_all(obj);
1133 EINA_MAGIC_SET(obj, EO_DELETED_EINA_MAGIC);
1141 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1147 eo_ref_get(const Eo *obj)
1149 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, 0);
1151 return obj->refcount;
1157 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1159 _eo_del_internal(obj);
1164 eo_parent_get(const Eo *obj)
1166 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, NULL);
1172 eo_constructor_error_set(Eo *obj)
1174 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1176 obj->construct_error = EINA_TRUE;
1180 eo_constructor_error_unset(Eo *obj)
1182 obj->construct_error = EINA_FALSE;
1186 eo_constructor_error_get(const Eo *obj)
1188 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, EINA_TRUE);
1190 return obj->construct_error;
1194 _eo_constructor_default(Eo *obj)
1196 eo_constructor_super(obj);
1200 _eo_destructor_default(Eo *obj)
1202 eo_destructor_super(obj);
1206 _eo_constructor(Eo *obj, const Eo_Class *klass)
1211 if (klass->desc->constructor)
1212 klass->desc->constructor(obj, _eo_data_get(obj, klass));
1214 _eo_constructor_default(obj);
1218 _eo_destructor(Eo *obj, const Eo_Class *klass)
1223 if (klass->desc->destructor)
1224 klass->desc->destructor(obj, _eo_data_get(obj, klass));
1226 _eo_destructor_default(obj);
1230 eo_constructor_super(Eo *obj)
1232 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1234 _eo_constructor(obj, _eo_kls_itr_next(obj, EO_NOOP));
1238 eo_destructor_super(Eo *obj)
1240 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1242 _eo_destructor(obj, _eo_kls_itr_next(obj, EO_NOOP));
1245 static inline void *
1246 _eo_data_get(const Eo *obj, const Eo_Class *klass)
1248 if (EINA_LIKELY(klass->desc->data_size > 0))
1250 if (EINA_UNLIKELY(klass->desc->type == EO_CLASS_TYPE_MIXIN))
1252 Eo_Extension_Data_Offset *doff_itr =
1253 eo_class_get(obj)->extn_data_off;
1258 while (doff_itr->klass)
1260 if (doff_itr->klass == klass)
1261 return ((char *) obj) + EO_ALIGN_SIZE(sizeof(*obj)) +
1268 return ((char *) obj) + EO_ALIGN_SIZE(sizeof(*obj)) +
1277 eo_data_get(const Eo *obj, const Eo_Class *klass)
1280 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, NULL);
1283 if (!_eo_class_mro_has(obj->klass, klass))
1285 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);
1290 ret = _eo_data_get(obj, klass);
1292 if (!ret && (klass->desc->data_size == 0))
1294 ERR("Tried getting data of class '%s', but it has none..", klass->desc->name);
1303 const char *log_dom = "eo";
1304 if (_eo_init_count++ > 0)
1310 _eo_classes_last_id = 0;
1311 _eo_log_dom = eina_log_domain_register(log_dom, EINA_COLOR_LIGHTBLUE);
1312 if (_eo_log_dom < 0)
1314 EINA_LOG_ERR("Could not register log domain: %s", log_dom);
1318 if (!eina_lock_new(&_eo_class_creation_lock))
1320 EINA_LOG_ERR("Could not init lock.");
1324 eina_magic_string_static_set(EO_EINA_MAGIC, EO_EINA_MAGIC_STR);
1325 eina_magic_string_static_set(EO_DELETED_EINA_MAGIC,
1326 EO_DELETED_EINA_MAGIC_STR);
1327 eina_magic_string_static_set(EO_CLASS_EINA_MAGIC,
1328 EO_CLASS_EINA_MAGIC_STR);
1337 Eo_Class **cls_itr = _eo_classes;
1339 if (--_eo_init_count > 0)
1342 for (i = 0 ; i < _eo_classes_last_id ; i++, cls_itr++)
1345 eo_class_free(*cls_itr);
1351 eina_lock_free(&_eo_class_creation_lock);
1353 eina_log_domain_unregister(_eo_log_dom);
1361 eo_composite_object_attach(Eo *obj, Eo *emb_obj)
1363 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1364 EO_MAGIC_RETURN(emb_obj, EO_EINA_MAGIC);
1366 eo_xref(emb_obj, obj);
1367 obj->composite_objects = eina_list_prepend(obj->composite_objects, emb_obj);
1371 eo_composite_object_detach(Eo *obj, Eo *emb_obj)
1373 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1374 EO_MAGIC_RETURN(emb_obj, EO_EINA_MAGIC);
1376 obj->composite_objects = eina_list_remove(obj->composite_objects, emb_obj);
1377 eo_xunref(emb_obj, obj);
1381 eo_composite_is(Eo *emb_obj)
1383 if (!EINA_MAGIC_CHECK(emb_obj, EO_EINA_MAGIC))
1385 EINA_MAGIC_FAIL(emb_obj, EO_EINA_MAGIC);
1389 Eo *obj = eo_parent_get(emb_obj);
1396 EINA_LIST_FOREACH(obj->composite_objects, itr, tmp)
1406 struct _Eo_Callback_Description
1409 const Eo_Event_Description *event;
1412 Eo_Callback_Priority priority;
1413 Eina_Bool delete_me : 1;
1416 /* Actually remove, doesn't care about walking list, or delete_me */
1418 _eo_callback_remove(Eo *obj, Eo_Callback_Description *cb)
1420 obj->callbacks = eina_inlist_remove(obj->callbacks,
1421 EINA_INLIST_GET(cb));
1425 /* Actually remove, doesn't care about walking list, or delete_me */
1427 _eo_callback_remove_all(Eo *obj)
1430 Eo_Callback_Description *cb = NULL;
1431 EINA_INLIST_FOREACH_SAFE(obj->callbacks, initr, cb)
1433 _eo_callback_remove(obj, cb);
1438 _eo_callbacks_clear(Eo *obj)
1441 Eo_Callback_Description *cb = NULL;
1443 /* Abort if we are currently walking the list. */
1444 if (obj->walking_list > 0)
1447 EINA_INLIST_FOREACH_SAFE(obj->callbacks, itn, cb)
1451 _eo_callback_remove(obj, cb);
1457 _callback_priority_cmp(const void *_a, const void *_b)
1459 const Eo_Callback_Description *a, *b;
1460 a = (const Eo_Callback_Description *) _a;
1461 b = (const Eo_Callback_Description *) _b;
1462 if (a->priority < b->priority)
1469 eo_event_callback_priority_add(Eo *obj,
1470 const Eo_Event_Description *desc,
1471 Eo_Callback_Priority priority,
1475 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, EINA_FALSE);
1477 Eo_Callback_Description *cb = calloc(1, sizeof(*cb));
1480 cb->func_data = (void *) data;
1481 cb->priority = priority;
1482 obj->callbacks = eina_inlist_sorted_insert(obj->callbacks,
1483 EINA_INLIST_GET(cb), _callback_priority_cmp);
1485 eo_event_callback_call(obj, EO_EV_CALLBACK_ADD, desc);
1491 eo_event_callback_del_lazy(Eo *obj, const Eo_Event_Description *desc, Eo_Event_Cb func)
1493 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, NULL);
1496 Eo_Callback_Description *cb;
1497 EINA_INLIST_FOREACH(obj->callbacks, cb)
1499 if ((cb->event == desc) && (cb->func == func))
1503 data = cb->func_data;
1504 cb->delete_me = EINA_TRUE;
1505 _eo_callbacks_clear(obj);
1514 eo_event_callback_call(obj, EO_EV_CALLBACK_DEL, desc);
1519 eo_event_callback_del(Eo *obj, const Eo_Event_Description *desc, Eo_Event_Cb func, const void *user_data)
1521 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, NULL);
1524 Eo_Callback_Description *cb;
1525 EINA_INLIST_FOREACH(obj->callbacks, cb)
1527 if ((cb->event == desc) && (cb->func == func) &&
1528 (cb->func_data == user_data))
1532 data = cb->func_data;
1533 cb->delete_me = EINA_TRUE;
1534 _eo_callbacks_clear(obj);
1543 eo_event_callback_call(obj, EO_EV_CALLBACK_DEL, desc);
1548 eo_event_callback_call(Eo *obj, const Eo_Event_Description *desc,
1549 const void *event_info)
1551 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, EINA_FALSE);
1553 Eina_Bool ret = EINA_TRUE;
1554 Eo_Callback_Description *cb;
1557 obj->walking_list++;
1559 EINA_INLIST_FOREACH(obj->callbacks, cb)
1561 if (!cb->delete_me && (cb->event == desc))
1563 /* Abort callback calling if the func says so. */
1564 if (!cb->func((void *) cb->func_data, obj, desc,
1565 (void *) event_info))
1574 obj->walking_list--;
1575 _eo_callbacks_clear(obj);
1582 _eo_event_forwarder_callback(void *data, Eo *obj, const Eo_Event_Description *desc, void *event_info)
1585 Eo *new_obj = (Eo *) data;
1586 return eo_event_callback_call(new_obj, desc, event_info);
1589 /* FIXME: Change default priority? Maybe call later? */
1591 eo_event_callback_forwarder_add(Eo *obj, const Eo_Event_Description *desc, Eo *new_obj)
1593 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, EINA_FALSE);
1594 EO_MAGIC_RETURN_VAL(new_obj, EO_EINA_MAGIC, EINA_FALSE);
1596 return eo_event_callback_add(obj, desc, _eo_event_forwarder_callback, new_obj);
1600 eo_event_callback_forwarder_del(Eo *obj, const Eo_Event_Description *desc, Eo *new_obj)
1602 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, EINA_FALSE);
1603 EO_MAGIC_RETURN_VAL(new_obj, EO_EINA_MAGIC, EINA_FALSE);
1605 eo_event_callback_del(obj, desc, _eo_event_forwarder_callback, new_obj);