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_constructor(Eo *obj, const Eo_Class *klass);
19 static void _eo_destructor(Eo *obj, const Eo_Class *klass);
20 static inline Eina_Bool _eo_error_get(const Eo *obj);
21 static inline void _eo_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);
29 const Eo_Class **kls_itr;
35 const Eo_Class *klass;
41 Eina_List *composite_objects;
46 Eina_Bool construct_error:1;
47 Eina_Bool manual_free:1;
51 /* Dich search, split to 0xff 0xff 0xffff */
53 #define DICH_CHAIN1_MASK (0xffff)
54 #define DICH_CHAIN_LAST_MASK (0xffff)
55 #define DICH_CHAIN1(x) (((x) >> 16) & DICH_CHAIN1_MASK)
56 #define DICH_CHAIN_LAST(x) ((x) & DICH_CHAIN_LAST_MASK)
58 #define OP_CLASS_OFFSET 16
59 #define OP_CLASS_OFFSET_GET(x) (((x) >> OP_CLASS_OFFSET) & 0xffff)
60 #define OP_CLASS_GET(op) ({ \
61 Eo_Class_Id tmp = OP_CLASS_OFFSET_GET(op); \
64 #define OP_SUB_ID_GET(op) ((op) & 0xffff)
66 #define ID_CLASS_GET(id) ({ \
67 (Eo_Class *) ((id <= _eo_classes_last_id) && (id > 0)) ? \
68 (_eo_classes[id - 1]) : NULL; \
71 #define EO_ALIGN_SIZE(size) \
72 ((size) + (sizeof(void *) - ((size) % sizeof(void *))))
74 /* Structure of Eo_Op is:
79 typedef struct _Dich_Chain1 Dich_Chain1;
95 const Eo_Class *klass;
100 const Eo_Class *klass;
102 } Eo_Extension_Data_Offset;
107 Eo_Class_Id class_id;
108 const Eo_Class *parent;
109 const Eo_Class_Description *desc;
110 Dich_Chain1 *chain; /**< The size is class_id */
111 Eina_Inlist *extensions;
113 Eo_Extension_Data_Offset *extn_data_off;
114 size_t extn_data_size;
116 const Eo_Class **mro;
119 size_t data_offset; /* < Offset of the data within object data. */
121 Eina_Bool constructed : 1;
125 _dich_chain_alloc(Dich_Chain1 *chain1, size_t num_ops)
129 chain1->funcs = calloc(num_ops, sizeof(*(chain1->funcs)));
134 _dich_copy_all(Eo_Class *dst, const Eo_Class *src)
136 if (!src->chain) return;
140 dst->chain = calloc(dst->class_id, sizeof(*dst->chain));
144 const Dich_Chain1 *sc1 = src->chain;
145 Dich_Chain1 *dc1 = dst->chain;
146 for (i = 0 ; i < src->class_id ; i++, sc1++, dc1++)
151 const Eo_Class *op_klass = ID_CLASS_GET(i + 1);
152 /* Can be NULL because of future static classes. */
156 size_t num_ops = op_klass->desc->ops.count;
157 _dich_chain_alloc(dc1, num_ops);
159 const op_type_funcs *sf = sc1->funcs;
160 op_type_funcs *df = dc1->funcs;
161 for (j = 0 ; j < num_ops ; j++, df++, sf++)
165 memcpy(df, sf, sizeof(*df));
172 static inline const op_type_funcs *
173 _dich_func_get(const Eo_Class *klass, Eo_Op op)
175 if (!klass->chain) return NULL;
177 size_t idx1 = DICH_CHAIN1(op) - 1;
178 if (idx1 >= klass->class_id) return NULL;
179 const Dich_Chain1 *chain1 = &klass->chain[idx1];
180 if (!chain1->funcs) return NULL;
182 size_t idxl = DICH_CHAIN_LAST(op);
183 /* num_ops is calculated from the class. */
184 const Eo_Class *op_klass = ID_CLASS_GET(idx1 + 1);
185 if (!op_klass || (idxl >= op_klass->desc->ops.count))
188 return &chain1->funcs[idxl];
192 _dich_func_set(Eo_Class *klass, Eo_Op op, eo_op_func_type func)
194 const Eo_Class *op_klass = OP_CLASS_GET(op);
197 /* Verify op is valid. */
200 /* num_ops is calculated from the class. */
201 num_ops = op_klass->desc->ops.count;
202 if (DICH_CHAIN_LAST(op) >= num_ops)
204 ERR("OP %x is too big for the domain '%s', expected value < %x.",
205 op, op_klass->desc->name, op_klass->desc->ops.count);
211 ERR("OP %x is from an illegal class.", op);
217 klass->chain = calloc(klass->class_id, sizeof(*klass->chain));
220 size_t idx1 = DICH_CHAIN1(op) - 1;
221 Dich_Chain1 *chain1 = &klass->chain[idx1];
222 _dich_chain_alloc(chain1, num_ops);
223 chain1->funcs[DICH_CHAIN_LAST(op)].func = func;
224 chain1->funcs[DICH_CHAIN_LAST(op)].src = klass;
228 _dich_func_clean_all(Eo_Class *klass)
231 Dich_Chain1 *chain1 = klass->chain;
236 for (i = 0 ; i < klass->class_id ; i++, chain1++)
247 static const Eo_Op_Description noop_desc =
248 EO_OP_DESCRIPTION(EO_NOOP, "", "No operation.");
250 static const Eo_Op_Description *
251 _eo_op_id_desc_get(Eo_Op op)
253 const Eo_Class *klass = OP_CLASS_GET(op);
254 Eo_Op sub_id = OP_SUB_ID_GET(op);
259 if (klass && (sub_id < klass->desc->ops.count))
260 return klass->desc->ops.descs + sub_id;
266 _eo_op_id_name_get(Eo_Op op)
268 const Eo_Op_Description *desc = _eo_op_id_desc_get(op);
269 return (desc) ? desc->name : NULL;
273 _eo_kls_itr_init(const Eo_Class *obj_klass, Eo_Kls_Itr *cur, Eo_Op op, Eo_Kls_Itr *prev_state)
275 prev_state->op = cur->op;
276 prev_state->kls_itr = cur->kls_itr;
278 /* If we are in a constructor/destructor or we changed an op - init. */
279 if ((op == EO_NOOP) || (cur->op != op))
282 cur->kls_itr = obj_klass->mro;
287 _eo_kls_itr_end(Eo_Kls_Itr *cur, Eo_Kls_Itr *prev_state)
289 if (cur->op != prev_state->op)
291 cur->op = prev_state->op;
292 cur->kls_itr = prev_state->kls_itr;
296 static inline const Eo_Class *
297 _eo_kls_itr_get(Eo_Kls_Itr *cur)
299 return (cur->kls_itr) ? *(cur->kls_itr) : NULL;
302 static inline const Eo_Class *
303 _eo_kls_itr_next(Eo_Kls_Itr *cur, Eo_Op op)
307 Eo_Op node_op = cur->op;
308 ERR("Called with op %d ('%s') while expecting: %d ('%s'). This probaly means you called eo_*_super functions from a wrong place.",
309 op, _eo_op_id_name_get(op),
310 node_op, _eo_op_id_name_get(node_op));
314 const Eo_Class **kls_itr = cur->kls_itr;
319 const op_type_funcs *fsrc = _dich_func_get(*kls_itr, op);
321 while (*kls_itr && (*(kls_itr++) != fsrc->src))
329 cur->kls_itr = kls_itr;
338 static inline Eina_Bool
339 _eo_kls_itr_reached_end(const Eo_Kls_Itr *cur)
341 const Eo_Class **kls_itr = cur->kls_itr;
342 return !(*kls_itr && *(kls_itr + 1));
345 static inline const op_type_funcs *
346 _eo_kls_itr_func_get(const Eo_Class *klass, Eo_Kls_Itr *mro_itr, Eo_Op op, Eo_Kls_Itr *prev_state)
348 _eo_kls_itr_init(klass, mro_itr, op, prev_state);
349 klass = _eo_kls_itr_get(mro_itr);
352 const op_type_funcs *func = _dich_func_get(klass, op);
354 if (func && func->func)
363 #define _EO_OP_ERR_NO_OP_PRINT(op, klass) \
366 const Eo_Class *op_klass = OP_CLASS_GET(op); \
367 const char *_dom_name = (op_klass) ? op_klass->desc->name : NULL; \
368 ERR("Can't find func for op %x ('%s' of domain '%s') for class '%s'. Aborting.", \
369 op, _eo_op_id_name_get(op), _dom_name, \
370 (klass) ? klass->desc->name : NULL); \
375 _eo_op_internal(Eo *obj, Eo_Op_Type op_type, Eo_Op op, va_list *p_list)
377 Eina_Bool ret = EINA_FALSE;
379 const Eo_Op_Description *op_desc = _eo_op_id_desc_get(op);
383 if (op_desc->op_type == EO_OP_TYPE_CLASS)
385 ERR("Tried calling a class op '%s' (%d) from a non-class context.", (op_desc) ? op_desc->name : NULL, op);
388 else if ((op_type == EO_OP_TYPE_CONST) &&
389 (op_desc->op_type != EO_OP_TYPE_CONST))
391 ERR("Tried calling non-const or non-existant op '%s' (%d) from a const (query) function.", (op_desc) ? op_desc->name : NULL, op);
396 Eo_Kls_Itr prev_state;
399 const op_type_funcs *func =
400 _eo_kls_itr_func_get(obj->klass, &obj->mro_itr, op, &prev_state);
403 func->func(obj, _eo_data_get(obj, func->src), p_list);
409 /* Try composite objects */
413 EINA_LIST_FOREACH(obj->composite_objects, itr, emb_obj)
415 if (_eo_op_internal(emb_obj, op_type, op, p_list))
424 _eo_kls_itr_end(&obj->mro_itr, &prev_state);
429 eo_do_internal(Eo *obj, Eo_Op_Type op_type, ...)
431 Eina_Bool ret = EINA_TRUE;
435 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, EINA_FALSE);
439 va_start(p_list, op_type);
441 op = va_arg(p_list, Eo_Op);
444 if (!_eo_op_internal(obj, op_type, op, &p_list))
446 _EO_OP_ERR_NO_OP_PRINT(op, obj->klass);
450 op = va_arg(p_list, Eo_Op);
460 eo_do_super_internal(Eo *obj, Eo_Op_Type op_type, Eo_Op op, ...)
462 const Eo_Class *nklass;
463 Eina_Bool ret = EINA_TRUE;
465 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, EINA_FALSE);
467 /* Advance the kls itr. */
468 nklass = _eo_kls_itr_next(&obj->mro_itr, op);
470 if (obj->mro_itr.op != op)
473 va_start(p_list, op);
474 if (!_eo_op_internal(obj, op_type, op, &p_list))
476 _EO_OP_ERR_NO_OP_PRINT(op, nklass);
485 _eo_class_op_internal(Eo_Class *klass, Eo_Op op, va_list *p_list)
487 Eina_Bool ret = EINA_FALSE;
489 const Eo_Op_Description *op_desc = _eo_op_id_desc_get(op);
493 if (op_desc->op_type != EO_OP_TYPE_CLASS)
495 ERR("Tried calling an instant op '%s' (%d) from a class context.", (op_desc) ? op_desc->name : NULL, op);
500 Eo_Kls_Itr prev_state;
503 const op_type_funcs *func =
504 _eo_kls_itr_func_get(klass, &klass->mro_itr, op, &prev_state);
507 ((eo_op_func_type_class) func->func)(klass, p_list);
514 _eo_kls_itr_end(&klass->mro_itr, &prev_state);
519 eo_class_do_internal(const Eo_Class *klass, ...)
521 Eina_Bool ret = EINA_TRUE;
525 EO_MAGIC_RETURN_VAL(klass, EO_CLASS_EINA_MAGIC, EINA_FALSE);
527 va_start(p_list, klass);
529 op = va_arg(p_list, Eo_Op);
532 if (!_eo_class_op_internal((Eo_Class *) klass, op, &p_list))
534 _EO_OP_ERR_NO_OP_PRINT(op, klass);
538 op = va_arg(p_list, Eo_Op);
547 eo_class_do_super_internal(const Eo_Class *klass, Eo_Op op, ...)
549 const Eo_Class *nklass;
550 Eina_Bool ret = EINA_TRUE;
552 EO_MAGIC_RETURN_VAL(klass, EO_CLASS_EINA_MAGIC, EINA_FALSE);
554 /* Advance the kls itr. */
555 nklass = _eo_kls_itr_next(&((Eo_Class *) klass)->mro_itr, op);
557 if (klass->mro_itr.op != op)
560 va_start(p_list, op);
561 if (!_eo_class_op_internal((Eo_Class *) klass, op, &p_list))
563 _EO_OP_ERR_NO_OP_PRINT(op, nklass);
571 EAPI const Eo_Class *
572 eo_class_get(const Eo *obj)
574 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, EINA_FALSE);
580 eo_class_name_get(const Eo_Class *klass)
582 EO_MAGIC_RETURN_VAL(klass, EO_CLASS_EINA_MAGIC, NULL);
584 return klass->desc->name;
588 _eo_class_base_op_init(Eo_Class *klass)
590 const Eo_Class_Description *desc = klass->desc;
591 if (!desc || !desc->ops.base_op_id)
594 /* FIXME: Depends on values defined above! */
595 *(desc->ops.base_op_id) = klass->class_id << OP_CLASS_OFFSET;
600 _eo_class_mro_has(const Eo_Class *klass, const Eo_Class *find)
602 const Eo_Class **itr;
603 for (itr = klass->mro ; *itr ; itr++)
616 _eo_class_mro_add(Eina_List *mro, const Eo_Class *klass)
618 Eina_List *extn_pos = NULL;
619 Eina_Bool check_consistency = !mro;
623 mro = eina_list_append(mro, klass);
625 /* Recursively add extenions. */
627 Eo_Extension_Node *extn;
628 EINA_INLIST_FOREACH(klass->extensions, extn)
630 mro = _eo_class_mro_add(mro, extn->klass);
631 /* Not possible: if (!mro) return NULL; */
633 if (check_consistency)
635 extn_pos = eina_list_append(extn_pos, eina_list_last(mro));
640 /* Check if we can create a consistent mro. We only do it for the class
641 * we are working on (i.e no parents). */
642 if (check_consistency)
644 Eo_Extension_Node *extn;
646 Eina_List *itr = extn_pos;
647 EINA_INLIST_FOREACH(klass->extensions, extn)
649 /* Get the first one after the extension. */
650 Eina_List *extn_list = eina_list_next(eina_list_data_get(itr));
652 /* If we found the extension again. */
653 if (eina_list_data_find_list(extn_list, extn->klass))
656 ERR("Cannot create a consistent method resolution order for class '%s' because of '%s'.", klass->desc->name, extn->klass->desc->name);
660 itr = eina_list_next(itr);
665 mro = _eo_class_mro_add(mro, klass->parent);
671 _eo_class_mro_init(Eo_Class *klass)
673 Eina_List *mro = NULL;
675 DBG("Started creating MRO for class '%s'", klass->desc->name);
676 mro = _eo_class_mro_add(mro, klass);
681 /* Remove duplicates and make them the right order. */
683 Eina_List *itr1, *itr2, *itr2n;
685 itr1 = eina_list_last(mro);
688 itr2 = eina_list_prev(itr1);
692 itr2n = eina_list_prev(itr2);
694 if (eina_list_data_get(itr1) == eina_list_data_get(itr2))
696 mro = eina_list_remove_list(mro, itr2);
702 itr1 = eina_list_prev(itr1);
706 /* Copy the mro and free the list. */
708 const Eo_Class *kls_itr;
709 const Eo_Class **mro_itr;
710 klass->mro = calloc(sizeof(*klass->mro), eina_list_count(mro) + 1);
712 mro_itr = klass->mro;
714 EINA_LIST_FREE(mro, kls_itr)
716 *(mro_itr++) = kls_itr;
718 DBG("Added '%s' to MRO", kls_itr->desc->name);
723 DBG("Finished creating MRO for class '%s'", klass->desc->name);
729 _eo_class_constructor(Eo_Class *klass)
731 if (klass->constructed)
734 klass->constructed = EINA_TRUE;
736 if (klass->desc->class_constructor)
737 klass->desc->class_constructor(klass);
741 eo_class_funcs_set(Eo_Class *klass, const Eo_Op_Func_Description *func_descs)
743 EO_MAGIC_RETURN(klass, EO_CLASS_EINA_MAGIC);
745 const Eo_Op_Func_Description *itr;
749 for ( ; itr->op != 0 ; itr++)
751 const Eo_Op_Description *op_desc = _eo_op_id_desc_get(itr->op);
753 if (EINA_LIKELY(!op_desc || (itr->op_type == op_desc->op_type)))
755 _dich_func_set(klass, itr->op, itr->func);
759 ERR("Set function's op type (%d) is different than the one in the op description (%d) for op '%s' in class '%s'.", itr->op_type, op_desc->op_type, op_desc->name, klass->desc->name);
766 eo_class_free(Eo_Class *klass)
768 if (klass->constructed)
770 if (klass->desc->class_destructor)
771 klass->desc->class_destructor(klass);
773 _dich_func_clean_all(klass);
778 Eo_Extension_Node *extn = NULL;
779 EINA_INLIST_FOREACH_SAFE(klass->extensions, itrn, extn)
788 if (klass->extn_data_off)
789 free(klass->extn_data_off);
796 _eo_class_check_op_descs(const Eo_Class *klass)
798 const Eo_Class_Description *desc = klass->desc;
799 const Eo_Op_Description *itr;
802 if (desc->ops.count > 0)
804 if (!desc->ops.base_op_id)
806 ERR("Class '%s' has a non-zero ops count, but base_id is NULL.",
811 if (!desc->ops.descs)
813 ERR("Class '%s' has a non-zero ops count, but there are no descs.",
819 itr = desc->ops.descs;
820 for (i = 0 ; i < desc->ops.count ; i++, itr++)
822 if (itr->sub_op != i)
826 ERR("Wrong order in Ops description for class '%s'. Expected %d and got %d", desc->name, i, itr->sub_op);
830 ERR("Found too few Ops description for class '%s'. Expected %d descriptions, but found %d.", desc->name, desc->ops.count, i);
836 if (itr && itr->name)
838 ERR("Found extra Ops description for class '%s'. Expected %d descriptions, but found more.", desc->name, desc->ops.count);
845 EAPI const Eo_Class *
846 eo_class_new(const Eo_Class_Description *desc, const Eo_Class *parent, ...)
851 if (parent && !EINA_MAGIC_CHECK(parent, EO_CLASS_EINA_MAGIC))
853 EINA_MAGIC_FAIL(parent, EO_CLASS_EINA_MAGIC);
857 va_start(p_list, parent);
859 EINA_SAFETY_ON_NULL_RETURN_VAL(desc, NULL);
860 EINA_SAFETY_ON_NULL_RETURN_VAL(desc->name, NULL);
862 /* Check restrictions on Interface types. */
863 if (desc->type == EO_CLASS_TYPE_INTERFACE)
865 EINA_SAFETY_ON_FALSE_RETURN_VAL(!desc->constructor, NULL);
866 EINA_SAFETY_ON_FALSE_RETURN_VAL(!desc->destructor, NULL);
867 EINA_SAFETY_ON_FALSE_RETURN_VAL(!desc->class_constructor, NULL);
868 EINA_SAFETY_ON_FALSE_RETURN_VAL(!desc->class_destructor, NULL);
869 EINA_SAFETY_ON_FALSE_RETURN_VAL(!desc->data_size, NULL);
872 klass = calloc(1, sizeof(Eo_Class));
873 klass->parent = parent;
875 /* Handle class extensions */
877 Eo_Class *extn = NULL;
879 extn = va_arg(p_list, Eo_Class *);
882 switch (extn->desc->type)
884 case EO_CLASS_TYPE_REGULAR:
885 case EO_CLASS_TYPE_REGULAR_NO_INSTANT:
886 /* Use it like an interface. */
887 case EO_CLASS_TYPE_INTERFACE:
889 case EO_CLASS_TYPE_MIXIN:
891 Eo_Extension_Node *node = calloc(1, sizeof(*node));
894 eina_inlist_append(klass->extensions,
895 EINA_INLIST_GET(node));
900 extn = va_arg(p_list, Eo_Class *);
906 /* Handle the inheritance */
909 /* Verify the inheritance is allowed. */
910 switch (klass->desc->type)
912 case EO_CLASS_TYPE_REGULAR:
913 case EO_CLASS_TYPE_REGULAR_NO_INSTANT:
914 if ((klass->parent->desc->type != EO_CLASS_TYPE_REGULAR) &&
915 (klass->parent->desc->type != EO_CLASS_TYPE_REGULAR_NO_INSTANT))
917 ERR("Regular classes ('%s') aren't allowed to inherit from non-regular classes ('%s').", klass->desc->name, klass->parent->desc->name);
921 case EO_CLASS_TYPE_INTERFACE:
922 case EO_CLASS_TYPE_MIXIN:
923 if ((klass->parent->desc->type != EO_CLASS_TYPE_INTERFACE) &&
924 (klass->parent->desc->type != EO_CLASS_TYPE_MIXIN))
926 ERR("Non-regular classes ('%s') aren't allowed to inherit from regular classes ('%s').", klass->desc->name, klass->parent->desc->name);
933 /* Update the current offset. */
934 /* FIXME: Make sure this alignment is enough. */
935 klass->data_offset = klass->parent->data_offset +
936 EO_ALIGN_SIZE(klass->parent->desc->data_size);
939 if (!_eo_class_check_op_descs(klass))
944 if (!_eo_class_mro_init(klass))
949 /* create MIXIN offset table. */
951 const Eo_Class **mro_itr = klass->mro;
952 Eo_Extension_Data_Offset *extn_data_itr;
954 size_t extn_data_off = klass->data_offset +
955 EO_ALIGN_SIZE(klass->desc->data_size);
957 /* FIXME: Make faster... */
960 if (((*mro_itr)->desc->type == EO_CLASS_TYPE_MIXIN) &&
961 ((*mro_itr)->desc->data_size > 0))
968 klass->extn_data_off = calloc(extn_num + 1,
969 sizeof(*klass->extn_data_off));
971 extn_data_itr = klass->extn_data_off;
972 mro_itr = klass->mro;
975 if (((*mro_itr)->desc->type == EO_CLASS_TYPE_MIXIN) &&
976 ((*mro_itr)->desc->data_size > 0))
978 extn_data_itr->klass = *mro_itr;
979 extn_data_itr->offset = extn_data_off;
981 extn_data_off += EO_ALIGN_SIZE(extn_data_itr->klass->desc->data_size);
987 klass->extn_data_size = extn_data_off;
990 eina_lock_take(&_eo_class_creation_lock);
991 klass->class_id = ++_eo_classes_last_id;
993 /* FIXME: Handle errors. */
995 tmp = realloc(_eo_classes, _eo_classes_last_id * sizeof(*_eo_classes));
997 _eo_classes[klass->class_id - 1] = klass;
999 eina_lock_release(&_eo_class_creation_lock);
1001 EINA_MAGIC_SET(klass, EO_CLASS_EINA_MAGIC);
1003 /* Flatten the function array */
1005 const Eo_Class **mro_itr = klass->mro;
1006 for ( ; *mro_itr ; mro_itr++)
1009 /* Skip ourselves. */
1010 for ( mro_itr-- ; mro_itr > klass->mro ; mro_itr--)
1012 _dich_copy_all(klass, *mro_itr);
1016 _eo_class_base_op_init(klass);
1018 _eo_class_constructor(klass);
1025 eo_class_free(klass);
1030 eo_add(const Eo_Class *klass, Eo *parent)
1032 EO_MAGIC_RETURN_VAL(klass, EO_CLASS_EINA_MAGIC, NULL);
1034 if (parent) EO_MAGIC_RETURN_VAL(parent, EO_EINA_MAGIC, NULL);
1036 if (EINA_UNLIKELY(klass->desc->type != EO_CLASS_TYPE_REGULAR))
1038 ERR("Class '%s' is not instantiate-able. Aborting.", klass->desc->name);
1042 Eo *obj = calloc(1, EO_ALIGN_SIZE(sizeof(*obj)) +
1043 (klass->data_offset + EO_ALIGN_SIZE(klass->desc->data_size)) +
1044 klass->extn_data_size);
1046 obj->parent = parent;
1050 Eo_Kls_Itr prev_state;
1052 _eo_kls_itr_init(klass, &obj->mro_itr, EO_NOOP, &prev_state);
1053 _eo_error_unset(obj);
1055 EINA_MAGIC_SET(obj, EO_EINA_MAGIC);
1057 _eo_constructor(obj, klass);
1059 if (EINA_UNLIKELY(_eo_error_get(obj)))
1061 ERR("Type '%s' - One of the object constructors have failed.", klass->desc->name);
1065 if (EINA_UNLIKELY(!_eo_kls_itr_reached_end(&obj->mro_itr)))
1067 ERR("Type '%s' - Not all of the object constructors have been executed.", klass->desc->name);
1070 _eo_kls_itr_end(&obj->mro_itr, &prev_state);
1076 _eo_kls_itr_end(&obj->mro_itr, &prev_state);
1077 /* Unref twice, once for the ref above, and once for the basic object ref. */
1092 eo_xref_internal(Eo *obj, const Eo *ref_obj, const char *file, int line)
1094 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, obj);
1099 Eo_Xref_Node *xref = calloc(1, sizeof(*xref));
1100 xref->ref_obj = ref_obj;
1104 /* FIXME: Make it sorted. */
1105 obj->xrefs = eina_inlist_prepend(obj->xrefs, EINA_INLIST_GET(xref));
1116 eo_xunref(Eo *obj, const Eo *ref_obj)
1118 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1120 Eo_Xref_Node *xref = NULL;
1121 EINA_INLIST_FOREACH(obj->xrefs, xref)
1123 if (xref->ref_obj == ref_obj)
1129 obj->xrefs = eina_inlist_remove(obj->xrefs, EINA_INLIST_GET(xref));
1134 ERR("ref_obj (%p) does not reference obj (%p). Aborting unref.", ref_obj, obj);
1151 eo_ref(const Eo *_obj)
1153 Eo *obj = (Eo *) _obj;
1154 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, obj);
1156 return _eo_ref(obj);
1160 _eo_del_internal(Eo *obj)
1164 /* We need that for the event callbacks that may ref/unref. */
1167 eo_do(obj, eo_event_callback_call(EO_EV_DEL, NULL, NULL));
1168 obj->del = EINA_TRUE;
1170 const Eo_Class *klass = eo_class_get(obj);
1171 Eo_Kls_Itr prev_state;
1173 _eo_kls_itr_init(klass, &obj->mro_itr, EO_NOOP, &prev_state);
1174 _eo_error_unset(obj);
1175 _eo_destructor(obj, klass);
1176 if (_eo_error_get(obj))
1178 ERR("Type '%s' - One of the object destructors have failed.", klass->desc->name);
1181 if (!_eo_kls_itr_reached_end(&obj->mro_itr))
1183 ERR("Type '%s' - Not all of the object destructors have been executed.", klass->desc->name);
1185 _eo_kls_itr_end(&obj->mro_itr, &prev_state);
1186 /*FIXME: add eo_class_unref(klass) ? - just to clear the caches. */
1188 Eina_List *itr, *itr_n;
1190 EINA_LIST_FOREACH_SAFE(obj->composite_objects, itr, itr_n, emb_obj)
1192 eo_composite_object_detach(obj, emb_obj);
1201 EINA_MAGIC_SET(obj, EO_DELETED_EINA_MAGIC);
1208 if (--(obj->refcount) == 0)
1210 _eo_del_internal(obj);
1213 /* If for some reason it's not empty, clear it. */
1216 WRN("obj->xrefs is not empty, possibly a bug, please report. - An error will be reported for each xref in the stack.");
1217 Eina_Inlist *nitr = obj->xrefs->next;
1218 free(EINA_INLIST_CONTAINER_GET(obj->xrefs, Eo_Xref_Node));
1223 if (!obj->manual_free) _eo_free(obj);
1228 eo_unref(const Eo *_obj)
1230 Eo *obj = (Eo *) _obj;
1231 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1237 eo_ref_get(const Eo *obj)
1239 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, 0);
1241 return obj->refcount;
1247 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1249 _eo_del_internal(obj);
1254 eo_parent_get(const Eo *obj)
1256 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, NULL);
1262 eo_error_set_internal(const Eo *obj, const char *file, int line)
1264 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1266 ERR("Error with obj '%p' at %s:%d", obj, file, line);
1268 ((Eo *) obj)->construct_error = EINA_TRUE;
1272 _eo_error_unset(Eo *obj)
1274 obj->construct_error = EINA_FALSE;
1279 * @brief Check if there was an error when constructing, destructing or calling a function of the object.
1280 * @param obj the object to work on.
1281 * @return @c EINA_TRUE if there was an error.
1283 static inline Eina_Bool
1284 _eo_error_get(const Eo *obj)
1286 return obj->construct_error;
1290 _eo_constructor_default(Eo *obj)
1292 eo_constructor_super(obj);
1296 _eo_destructor_default(Eo *obj)
1298 eo_destructor_super(obj);
1302 _eo_constructor(Eo *obj, const Eo_Class *klass)
1307 if (klass->desc->constructor)
1308 klass->desc->constructor(obj, _eo_data_get(obj, klass));
1310 _eo_constructor_default(obj);
1314 _eo_destructor(Eo *obj, const Eo_Class *klass)
1319 if (klass->desc->destructor)
1320 klass->desc->destructor(obj, _eo_data_get(obj, klass));
1322 _eo_destructor_default(obj);
1326 eo_constructor_super(Eo *obj)
1328 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1330 _eo_constructor(obj, _eo_kls_itr_next(&obj->mro_itr, EO_NOOP));
1334 eo_destructor_super(Eo *obj)
1336 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1338 _eo_destructor(obj, _eo_kls_itr_next(&obj->mro_itr, EO_NOOP));
1341 static inline void *
1342 _eo_data_get(const Eo *obj, const Eo_Class *klass)
1344 if (EINA_LIKELY(klass->desc->data_size > 0))
1346 if (EINA_UNLIKELY(klass->desc->type == EO_CLASS_TYPE_MIXIN))
1348 Eo_Extension_Data_Offset *doff_itr =
1349 eo_class_get(obj)->extn_data_off;
1354 while (doff_itr->klass)
1356 if (doff_itr->klass == klass)
1357 return ((char *) obj) + EO_ALIGN_SIZE(sizeof(*obj)) +
1364 return ((char *) obj) + EO_ALIGN_SIZE(sizeof(*obj)) +
1373 eo_data_get(const Eo *obj, const Eo_Class *klass)
1376 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, NULL);
1379 if (!_eo_class_mro_has(obj->klass, klass))
1381 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);
1386 ret = _eo_data_get(obj, klass);
1389 if (!ret && (klass->desc->data_size == 0))
1391 ERR("Tried getting data of class '%s', but it has none..", klass->desc->name);
1401 const char *log_dom = "eo";
1402 if (_eo_init_count++ > 0)
1408 _eo_classes_last_id = 0;
1409 _eo_log_dom = eina_log_domain_register(log_dom, EINA_COLOR_LIGHTBLUE);
1410 if (_eo_log_dom < 0)
1412 EINA_LOG_ERR("Could not register log domain: %s", log_dom);
1416 if (!eina_lock_new(&_eo_class_creation_lock))
1418 EINA_LOG_ERR("Could not init lock.");
1422 eina_magic_string_static_set(EO_EINA_MAGIC, EO_EINA_MAGIC_STR);
1423 eina_magic_string_static_set(EO_DELETED_EINA_MAGIC,
1424 EO_DELETED_EINA_MAGIC_STR);
1425 eina_magic_string_static_set(EO_CLASS_EINA_MAGIC,
1426 EO_CLASS_EINA_MAGIC_STR);
1435 Eo_Class **cls_itr = _eo_classes;
1437 if (--_eo_init_count > 0)
1440 for (i = 0 ; i < _eo_classes_last_id ; i++, cls_itr++)
1443 eo_class_free(*cls_itr);
1449 eina_lock_free(&_eo_class_creation_lock);
1451 eina_log_domain_unregister(_eo_log_dom);
1459 eo_composite_object_attach(Eo *obj, Eo *emb_obj)
1461 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1462 EO_MAGIC_RETURN(emb_obj, EO_EINA_MAGIC);
1464 eo_xref(emb_obj, obj);
1465 obj->composite_objects = eina_list_prepend(obj->composite_objects, emb_obj);
1469 eo_composite_object_detach(Eo *obj, Eo *emb_obj)
1471 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1472 EO_MAGIC_RETURN(emb_obj, EO_EINA_MAGIC);
1474 obj->composite_objects = eina_list_remove(obj->composite_objects, emb_obj);
1475 eo_xunref(emb_obj, obj);
1479 eo_composite_is(const Eo *emb_obj)
1481 if (!EINA_MAGIC_CHECK(emb_obj, EO_EINA_MAGIC))
1483 EINA_MAGIC_FAIL(emb_obj, EO_EINA_MAGIC);
1487 Eo *obj = eo_parent_get(emb_obj);
1494 EINA_LIST_FOREACH(obj->composite_objects, itr, tmp)
1504 eo_manual_free_set(Eo *obj, Eina_Bool manual_free)
1506 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1507 obj->manual_free = manual_free;
1511 eo_manual_free(Eo *obj)
1513 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1515 if (EINA_FALSE == obj->manual_free)
1517 ERR("Tried to free manually the object %p while the option has not been set; see eo_manual_free_set for more information.", obj);
1521 if (0 != obj->refcount)
1523 ERR("Tried deleting the object %p while still referenced(%d).", obj, eo_ref_get(obj));