4 #include "eo_private.h"
8 /* The last id that should be reserved for statically allocated classes. */
9 #define EO_STATIC_IDS_LAST 10
11 /* Used inside the class_get functions of classes, see #EO_DEFINE_CLASS */
12 EAPI Eina_Lock _eo_class_creation_lock;
15 static Eo_Class **_eo_classes;
16 static Eo_Class_Id _eo_classes_last_id;
17 static Eina_Bool _eo_init_count = 0;
19 static void _eo_condtor_reset(Eo *obj);
20 static inline void *_eo_data_get(const Eo *obj, const Eo_Class *klass);
21 static inline Eo *_eo_ref(Eo *obj);
22 static inline void _eo_unref(Eo *obj);
27 const Eo_Class **kls_itr;
34 Eina_Inlist *children;
35 const Eo_Class *klass;
41 Eina_List *composite_objects;
46 Eina_Bool condtor_done:1;
48 Eina_Bool composite:1;
50 Eina_Bool manual_free:1;
54 /* Dich search, split to 0xff 0xff 0xffff */
56 #define DICH_CHAIN1_MASK (0xffff)
57 #define DICH_CHAIN_LAST_MASK (0xffff)
58 #define DICH_CHAIN1(x) (((x) >> 16) & DICH_CHAIN1_MASK)
59 #define DICH_CHAIN_LAST(x) ((x) & DICH_CHAIN_LAST_MASK)
61 #define OP_CLASS_OFFSET_GET(x) (((x) >> EO_OP_CLASS_OFFSET) & 0xffff)
62 #define OP_CLASS_GET(op) ({ \
63 Eo_Class_Id tmp = OP_CLASS_OFFSET_GET(op); \
66 #define OP_SUB_ID_GET(op) ((op) & 0xffff)
68 #define ID_CLASS_GET(id) ({ \
69 (Eo_Class *) ((id <= _eo_classes_last_id) && (id > 0)) ? \
70 (_eo_classes[id - 1]) : NULL; \
73 #define EO_ALIGN_SIZE(size) \
74 ((size) + (sizeof(void *) - ((size) % sizeof(void *))))
76 /* Structure of Eo_Op is:
81 typedef struct _Dich_Chain1 Dich_Chain1;
97 const Eo_Class *klass;
102 const Eo_Class *klass;
104 } Eo_Extension_Data_Offset;
109 Eo_Class_Id class_id;
110 const Eo_Class *parent;
111 const Eo_Class_Description *desc;
112 Dich_Chain1 *chain; /**< The size is class_id */
113 Eina_Inlist *extensions;
115 Eo_Extension_Data_Offset *extn_data_off;
116 size_t extn_data_size;
118 const Eo_Class **mro;
121 size_t data_offset; /* < Offset of the data within object data. */
123 Eina_Bool constructed : 1;
127 _dich_chain_alloc(Dich_Chain1 *chain1, size_t num_ops)
131 chain1->funcs = calloc(num_ops, sizeof(*(chain1->funcs)));
136 _dich_copy_all(Eo_Class *dst, const Eo_Class *src)
138 if (!src->chain) return;
142 dst->chain = calloc(dst->class_id, sizeof(*dst->chain));
146 const Dich_Chain1 *sc1 = src->chain;
147 Dich_Chain1 *dc1 = dst->chain;
148 for (i = 0 ; i < src->class_id ; i++, sc1++, dc1++)
153 const Eo_Class *op_klass = ID_CLASS_GET(i + 1);
154 /* Can be NULL because of future static classes. */
158 size_t num_ops = op_klass->desc->ops.count;
159 _dich_chain_alloc(dc1, num_ops);
161 const op_type_funcs *sf = sc1->funcs;
162 op_type_funcs *df = dc1->funcs;
163 for (j = 0 ; j < num_ops ; j++, df++, sf++)
167 memcpy(df, sf, sizeof(*df));
174 static inline const op_type_funcs *
175 _dich_func_get(const Eo_Class *klass, Eo_Op op)
177 if (!klass->chain) return NULL;
179 size_t idx1 = DICH_CHAIN1(op) - 1;
180 if (idx1 >= klass->class_id) return NULL;
181 const Dich_Chain1 *chain1 = &klass->chain[idx1];
182 if (!chain1->funcs) return NULL;
184 size_t idxl = DICH_CHAIN_LAST(op);
185 /* num_ops is calculated from the class. */
186 const Eo_Class *op_klass = ID_CLASS_GET(idx1 + 1);
187 if (!op_klass || (idxl >= op_klass->desc->ops.count))
190 return &chain1->funcs[idxl];
194 _dich_func_set(Eo_Class *klass, Eo_Op op, eo_op_func_type func)
196 const Eo_Class *op_klass = OP_CLASS_GET(op);
199 /* Verify op is valid. */
202 /* num_ops is calculated from the class. */
203 num_ops = op_klass->desc->ops.count;
204 if (DICH_CHAIN_LAST(op) >= num_ops)
206 ERR("OP %x is too big for the domain '%s', expected value < %x.",
207 op, op_klass->desc->name, op_klass->desc->ops.count);
213 ERR("OP %x is from an illegal class.", op);
219 klass->chain = calloc(klass->class_id, sizeof(*klass->chain));
222 size_t idx1 = DICH_CHAIN1(op) - 1;
223 Dich_Chain1 *chain1 = &klass->chain[idx1];
224 _dich_chain_alloc(chain1, num_ops);
225 chain1->funcs[DICH_CHAIN_LAST(op)].func = func;
226 chain1->funcs[DICH_CHAIN_LAST(op)].src = klass;
230 _dich_func_clean_all(Eo_Class *klass)
233 Dich_Chain1 *chain1 = klass->chain;
238 for (i = 0 ; i < klass->class_id ; i++, chain1++)
249 static const Eo_Op_Description noop_desc =
250 EO_OP_DESCRIPTION(EO_NOOP, "No operation.");
252 static const Eo_Op_Description *
253 _eo_op_id_desc_get(Eo_Op op)
255 const Eo_Class *klass = OP_CLASS_GET(op);
256 Eo_Op sub_id = OP_SUB_ID_GET(op);
261 if (klass && (sub_id < klass->desc->ops.count))
262 return klass->desc->ops.descs + sub_id;
268 _eo_op_id_name_get(Eo_Op op)
270 const Eo_Op_Description *desc = _eo_op_id_desc_get(op);
271 return (desc) ? desc->name : NULL;
275 _eo_kls_itr_init(const Eo_Class *obj_klass, Eo_Kls_Itr *cur, Eo_Op op, Eo_Kls_Itr *prev_state)
277 prev_state->op = cur->op;
278 prev_state->kls_itr = cur->kls_itr;
280 /* If we are in a constructor/destructor or we changed an op - init. */
281 if ((cur->op == EO_NOOP) || (cur->op != op))
284 cur->kls_itr = obj_klass->mro;
289 _eo_kls_itr_end(Eo_Kls_Itr *cur, Eo_Kls_Itr *prev_state)
291 if (cur->op != prev_state->op)
293 cur->op = prev_state->op;
294 cur->kls_itr = prev_state->kls_itr;
298 static inline const Eo_Class *
299 _eo_kls_itr_get(Eo_Kls_Itr *cur)
301 return (cur->kls_itr) ? *(cur->kls_itr) : NULL;
304 static inline const Eo_Class *
305 _eo_kls_itr_next(Eo_Kls_Itr *cur, Eo_Op op)
309 Eo_Op node_op = cur->op;
310 ERR("Called with op %x ('%s') while expecting: %x ('%s'). This probaly means you called eo_*_super functions from a wrong place.",
311 op, _eo_op_id_name_get(op),
312 node_op, _eo_op_id_name_get(node_op));
316 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))
324 cur->kls_itr = kls_itr;
333 static inline const op_type_funcs *
334 _eo_kls_itr_func_get(const Eo_Class *klass, Eo_Kls_Itr *mro_itr, Eo_Op op, Eo_Kls_Itr *prev_state)
336 _eo_kls_itr_init(klass, mro_itr, op, prev_state);
337 klass = _eo_kls_itr_get(mro_itr);
340 const op_type_funcs *func = _dich_func_get(klass, op);
342 if (func && func->func)
351 #define _EO_OP_ERR_NO_OP_PRINT(op, klass) \
354 const Eo_Class *op_klass = OP_CLASS_GET(op); \
355 const char *_dom_name = (op_klass) ? op_klass->desc->name : NULL; \
356 ERR("Can't find func for op %x ('%s' of domain '%s') for class '%s'. Aborting.", \
357 op, _eo_op_id_name_get(op), _dom_name, \
358 (klass) ? klass->desc->name : NULL); \
363 _eo_op_internal(Eo *obj, Eo_Op_Type op_type, Eo_Op op, va_list *p_list)
365 Eina_Bool ret = EINA_FALSE;
368 const Eo_Op_Description *op_desc = _eo_op_id_desc_get(op);
372 if (op_desc->op_type == EO_OP_TYPE_CLASS)
374 ERR("Tried calling a class op '%s' (%x) from a non-class context.", (op_desc) ? op_desc->name : NULL, op);
377 else if ((op_type == EO_OP_TYPE_CONST) &&
378 (op_desc->op_type != EO_OP_TYPE_CONST))
380 ERR("Tried calling non-const or non-existant op '%s' (%x) from a const (query) function.", (op_desc) ? op_desc->name : NULL, op);
386 Eo_Kls_Itr prev_state;
389 const op_type_funcs *func =
390 _eo_kls_itr_func_get(obj->klass, &obj->mro_itr, op, &prev_state);
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, op_type, op, p_list))
414 _eo_kls_itr_end(&obj->mro_itr, &prev_state);
419 eo_do_internal(Eo *obj, Eo_Op_Type op_type, ...)
421 Eina_Bool prev_error;
422 Eina_Bool ret = EINA_TRUE;
426 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, EINA_FALSE);
428 prev_error = obj->do_error;
431 va_start(p_list, op_type);
433 op = va_arg(p_list, Eo_Op);
436 if (!_eo_op_internal(obj, op_type, op, &p_list))
438 _EO_OP_ERR_NO_OP_PRINT(op, obj->klass);
442 op = va_arg(p_list, Eo_Op);
452 obj->do_error = prev_error;
458 eo_do_super_internal(Eo *obj, Eo_Op_Type op_type, Eo_Op op, ...)
460 const Eo_Class *nklass;
461 Eina_Bool ret = EINA_TRUE;
463 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, EINA_FALSE);
465 /* Advance the kls itr. */
466 nklass = _eo_kls_itr_next(&obj->mro_itr, op);
468 if (obj->mro_itr.op != op)
471 va_start(p_list, op);
472 if (!_eo_op_internal(obj, op_type, op, &p_list))
474 _EO_OP_ERR_NO_OP_PRINT(op, nklass);
483 _eo_class_op_internal(Eo_Class *klass, Eo_Op op, va_list *p_list)
485 Eina_Bool ret = EINA_FALSE;
488 const Eo_Op_Description *op_desc = _eo_op_id_desc_get(op);
492 if (op_desc->op_type != EO_OP_TYPE_CLASS)
494 ERR("Tried calling an instance op '%s' (%x) 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 *(desc->ops.base_op_id) = EO_CLASS_ID_TO_BASE_ID(klass->class_id);
599 _eo_class_mro_has(const Eo_Class *klass, const Eo_Class *find)
601 const Eo_Class **itr;
602 for (itr = klass->mro ; *itr ; itr++)
615 _eo_class_mro_add(Eina_List *mro, const Eo_Class *klass)
617 Eina_List *extn_pos = NULL;
618 Eina_Bool check_consistency = !mro;
622 mro = eina_list_append(mro, klass);
624 /* Recursively add extenions. */
626 Eo_Extension_Node *extn;
627 EINA_INLIST_FOREACH(klass->extensions, extn)
629 mro = _eo_class_mro_add(mro, extn->klass);
630 /* Not possible: if (!mro) return NULL; */
632 if (check_consistency)
634 extn_pos = eina_list_append(extn_pos, eina_list_last(mro));
639 /* Check if we can create a consistent mro. We only do it for the class
640 * we are working on (i.e no parents). */
641 if (check_consistency)
643 Eo_Extension_Node *extn;
645 Eina_List *itr = extn_pos;
646 EINA_INLIST_FOREACH(klass->extensions, extn)
648 /* Get the first one after the extension. */
649 Eina_List *extn_list = eina_list_next(eina_list_data_get(itr));
651 /* If we found the extension again. */
652 if (eina_list_data_find_list(extn_list, extn->klass))
655 ERR("Cannot create a consistent method resolution order for class '%s' because of '%s'.", klass->desc->name, extn->klass->desc->name);
659 itr = eina_list_next(itr);
664 mro = _eo_class_mro_add(mro, klass->parent);
670 _eo_class_mro_init(Eo_Class *klass)
672 Eina_List *mro = NULL;
674 DBG("Started creating MRO for class '%s'", klass->desc->name);
675 mro = _eo_class_mro_add(mro, klass);
680 /* Remove duplicates and make them the right order. */
682 Eina_List *itr1, *itr2, *itr2n;
684 itr1 = eina_list_last(mro);
687 itr2 = eina_list_prev(itr1);
691 itr2n = eina_list_prev(itr2);
693 if (eina_list_data_get(itr1) == eina_list_data_get(itr2))
695 mro = eina_list_remove_list(mro, itr2);
701 itr1 = eina_list_prev(itr1);
705 /* Copy the mro and free the list. */
707 const Eo_Class *kls_itr;
708 const Eo_Class **mro_itr;
709 klass->mro = calloc(sizeof(*klass->mro), eina_list_count(mro) + 1);
711 mro_itr = klass->mro;
713 EINA_LIST_FREE(mro, kls_itr)
715 *(mro_itr++) = kls_itr;
717 DBG("Added '%s' to MRO", kls_itr->desc->name);
722 DBG("Finished creating MRO for class '%s'", klass->desc->name);
728 _eo_class_constructor(Eo_Class *klass)
730 if (klass->constructed)
733 klass->constructed = EINA_TRUE;
735 if (klass->desc->class_constructor)
736 klass->desc->class_constructor(klass);
740 eo_class_funcs_set(Eo_Class *klass, const Eo_Op_Func_Description *func_descs)
742 EO_MAGIC_RETURN(klass, EO_CLASS_EINA_MAGIC);
744 const Eo_Op_Func_Description *itr;
748 for ( ; itr->op_type != EO_OP_TYPE_INVALID ; itr++)
750 const Eo_Op_Description *op_desc = _eo_op_id_desc_get(itr->op);
752 if (EINA_UNLIKELY(!op_desc || (itr->op == EO_NOOP)))
754 ERR("Setting implementation for non-existent op %x for class '%s'. Func index: %d", itr->op, klass->desc->name, itr - func_descs);
756 else if (EINA_LIKELY(itr->op_type == op_desc->op_type))
758 _dich_func_set(klass, itr->op, itr->func);
762 ERR("Set function's op type (%x) is different than the one in the op description (%d) for op '%s' in class '%s'. Func index: %d",
764 (op_desc) ? op_desc->op_type : EO_OP_TYPE_REGULAR,
765 (op_desc) ? op_desc->name : NULL,
774 eo_class_free(Eo_Class *klass)
776 if (klass->constructed)
778 if (klass->desc->class_destructor)
779 klass->desc->class_destructor(klass);
781 _dich_func_clean_all(klass);
786 Eo_Extension_Node *extn = NULL;
787 EINA_INLIST_FOREACH_SAFE(klass->extensions, itrn, extn)
796 if (klass->extn_data_off)
797 free(klass->extn_data_off);
804 _eo_class_check_op_descs(const Eo_Class *klass, Eo_Class_Id id)
806 const Eo_Class_Description *desc = klass->desc;
807 const Eo_Op_Description *itr;
810 if (desc->ops.count > 0)
812 if (((id == 0) || (id > EO_STATIC_IDS_LAST)) && !desc->ops.base_op_id)
814 ERR("Class '%s' has a non-zero ops count, but base_id is NULL.",
819 if (!desc->ops.descs)
821 ERR("Class '%s' has a non-zero ops count, but there are no descs.",
827 itr = desc->ops.descs;
828 for (i = 0 ; i < desc->ops.count ; i++, itr++)
830 if (itr->sub_op != i)
834 ERR("Wrong order in Ops description for class '%s'. Expected %x and got %x", desc->name, i, itr->sub_op);
838 ERR("Found too few Ops description for class '%s'. Expected %x descriptions, but found %x.", desc->name, desc->ops.count, i);
844 if (itr && itr->name)
846 ERR("Found extra Ops description for class '%s'. Expected %d descriptions, but found more.", desc->name, desc->ops.count);
853 EAPI const Eo_Class *
854 eo_class_new(const Eo_Class_Description *desc, Eo_Class_Id id, const Eo_Class *parent, ...)
859 if (parent && !EINA_MAGIC_CHECK(parent, EO_CLASS_EINA_MAGIC))
861 EINA_MAGIC_FAIL(parent, EO_CLASS_EINA_MAGIC);
865 if (id > EO_STATIC_IDS_LAST)
867 ERR("Tried creating a class with the static id %d while the maximum static id is %d. Aborting.", id, EO_STATIC_IDS_LAST);
871 va_start(p_list, parent);
873 EINA_SAFETY_ON_NULL_RETURN_VAL(desc, NULL);
874 EINA_SAFETY_ON_NULL_RETURN_VAL(desc->name, NULL);
876 /* Check restrictions on Interface types. */
877 if (desc->type == EO_CLASS_TYPE_INTERFACE)
879 EINA_SAFETY_ON_FALSE_RETURN_VAL(!desc->class_constructor, NULL);
880 EINA_SAFETY_ON_FALSE_RETURN_VAL(!desc->class_destructor, NULL);
881 EINA_SAFETY_ON_FALSE_RETURN_VAL(!desc->data_size, NULL);
884 klass = calloc(1, sizeof(Eo_Class));
885 klass->parent = parent;
887 /* Handle class extensions */
889 Eo_Class *extn = NULL;
891 extn = va_arg(p_list, Eo_Class *);
894 switch (extn->desc->type)
896 case EO_CLASS_TYPE_REGULAR:
897 case EO_CLASS_TYPE_REGULAR_NO_INSTANT:
898 /* Use it like an interface. */
899 case EO_CLASS_TYPE_INTERFACE:
901 case EO_CLASS_TYPE_MIXIN:
903 Eo_Extension_Node *node = calloc(1, sizeof(*node));
906 eina_inlist_append(klass->extensions,
907 EINA_INLIST_GET(node));
912 extn = va_arg(p_list, Eo_Class *);
918 /* Handle the inheritance */
921 /* Verify the inheritance is allowed. */
922 switch (klass->desc->type)
924 case EO_CLASS_TYPE_REGULAR:
925 case EO_CLASS_TYPE_REGULAR_NO_INSTANT:
926 if ((klass->parent->desc->type != EO_CLASS_TYPE_REGULAR) &&
927 (klass->parent->desc->type != EO_CLASS_TYPE_REGULAR_NO_INSTANT))
929 ERR("Regular classes ('%s') aren't allowed to inherit from non-regular classes ('%s').", klass->desc->name, klass->parent->desc->name);
933 case EO_CLASS_TYPE_INTERFACE:
934 case EO_CLASS_TYPE_MIXIN:
935 if ((klass->parent->desc->type != EO_CLASS_TYPE_INTERFACE) &&
936 (klass->parent->desc->type != EO_CLASS_TYPE_MIXIN))
938 ERR("Non-regular classes ('%s') aren't allowed to inherit from regular classes ('%s').", klass->desc->name, klass->parent->desc->name);
945 /* Update the current offset. */
946 /* FIXME: Make sure this alignment is enough. */
947 klass->data_offset = klass->parent->data_offset +
948 EO_ALIGN_SIZE(klass->parent->desc->data_size);
951 if (!_eo_class_check_op_descs(klass, id))
956 if (!_eo_class_mro_init(klass))
961 /* create MIXIN offset table. */
963 const Eo_Class **mro_itr = klass->mro;
964 Eo_Extension_Data_Offset *extn_data_itr;
966 size_t extn_data_off = klass->data_offset +
967 EO_ALIGN_SIZE(klass->desc->data_size);
969 /* FIXME: Make faster... */
972 if (((*mro_itr)->desc->type == EO_CLASS_TYPE_MIXIN) &&
973 ((*mro_itr)->desc->data_size > 0))
980 klass->extn_data_off = calloc(extn_num + 1,
981 sizeof(*klass->extn_data_off));
983 extn_data_itr = klass->extn_data_off;
984 mro_itr = klass->mro;
987 if (((*mro_itr)->desc->type == EO_CLASS_TYPE_MIXIN) &&
988 ((*mro_itr)->desc->data_size > 0))
990 extn_data_itr->klass = *mro_itr;
991 extn_data_itr->offset = extn_data_off;
993 extn_data_off += EO_ALIGN_SIZE(extn_data_itr->klass->desc->data_size);
999 klass->extn_data_size = extn_data_off;
1002 eina_lock_take(&_eo_class_creation_lock);
1006 klass->class_id = ++_eo_classes_last_id;
1011 if (_eo_classes && _eo_classes[id - 1])
1013 ERR("A class with id %d was already defined (%s). Aborting.", id,
1014 _eo_classes[id - 1]->desc->name);
1015 eina_lock_release(&_eo_class_creation_lock);
1019 klass->class_id = id;
1024 /* FIXME: Handle errors. */
1025 size_t arrsize = _eo_classes_last_id * sizeof(*_eo_classes);
1027 tmp = realloc(_eo_classes, arrsize);
1029 /* If it's the first allocation, memset. */
1031 memset(tmp, 0, arrsize);
1034 _eo_classes[klass->class_id - 1] = klass;
1036 eina_lock_release(&_eo_class_creation_lock);
1038 EINA_MAGIC_SET(klass, EO_CLASS_EINA_MAGIC);
1040 /* Flatten the function array */
1042 const Eo_Class **mro_itr = klass->mro;
1043 for ( ; *mro_itr ; mro_itr++)
1046 /* Skip ourselves. */
1047 for ( mro_itr-- ; mro_itr > klass->mro ; mro_itr--)
1049 _dich_copy_all(klass, *mro_itr);
1053 _eo_class_base_op_init(klass);
1055 _eo_class_constructor(klass);
1062 eo_class_free(klass);
1067 eo_parent_set(Eo *obj, const Eo *parent)
1069 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, EINA_FALSE);
1071 EO_MAGIC_RETURN_VAL(parent, EO_EINA_MAGIC, EINA_FALSE);
1073 if (obj->parent == parent)
1078 if (eo_composite_is(obj))
1080 eo_composite_detach(obj, obj->parent);
1085 obj->parent->children =
1086 eina_inlist_remove(obj->parent->children, EINA_INLIST_GET(obj));
1087 eo_xunref(obj, obj->parent);
1090 obj->parent = (Eo *) parent;
1093 obj->parent->children =
1094 eina_inlist_append(obj->parent->children, EINA_INLIST_GET(obj));
1095 eo_xref(obj, obj->parent);
1104 eo_add(const Eo_Class *klass, Eo *parent)
1107 EO_MAGIC_RETURN_VAL(klass, EO_CLASS_EINA_MAGIC, NULL);
1109 if (parent) EO_MAGIC_RETURN_VAL(parent, EO_EINA_MAGIC, NULL);
1111 if (EINA_UNLIKELY(klass->desc->type != EO_CLASS_TYPE_REGULAR))
1113 ERR("Class '%s' is not instantiate-able. Aborting.", klass->desc->name);
1117 Eo *obj = calloc(1, EO_ALIGN_SIZE(sizeof(*obj)) +
1118 (klass->data_offset + EO_ALIGN_SIZE(klass->desc->data_size)) +
1119 klass->extn_data_size);
1120 EINA_MAGIC_SET(obj, EO_EINA_MAGIC);
1124 eo_parent_set(obj, parent);
1126 Eo_Kls_Itr prev_state;
1128 _eo_kls_itr_init(klass, &obj->mro_itr, EO_NOOP, &prev_state);
1129 _eo_condtor_reset(obj);
1132 do_err = !eo_do(obj, eo_constructor());
1134 if (EINA_UNLIKELY(do_err))
1136 ERR("Object of class '%s' - One of the object constructors have failed.", klass->desc->name);
1140 if (!obj->condtor_done)
1142 const Eo_Class *cur_klass = _eo_kls_itr_get(&obj->mro_itr);
1143 ERR("Object of class '%s' - Not all of the object constructors have been executed, last constructor was of class: '%s'", klass->desc->name, cur_klass->desc->name);
1146 _eo_kls_itr_end(&obj->mro_itr, &prev_state);
1152 _eo_kls_itr_end(&obj->mro_itr, &prev_state);
1153 /* Unref twice, once for the ref above, and once for the basic object ref. */
1168 eo_xref_internal(Eo *obj, const Eo *ref_obj, const char *file, int line)
1170 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, obj);
1175 Eo_Xref_Node *xref = calloc(1, sizeof(*xref));
1176 xref->ref_obj = ref_obj;
1180 obj->xrefs = eina_inlist_prepend(obj->xrefs, EINA_INLIST_GET(xref));
1191 eo_xunref(Eo *obj, const Eo *ref_obj)
1193 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1195 Eo_Xref_Node *xref = NULL;
1196 EINA_INLIST_FOREACH(obj->xrefs, xref)
1198 if (xref->ref_obj == ref_obj)
1204 obj->xrefs = eina_inlist_remove(obj->xrefs, EINA_INLIST_GET(xref));
1209 ERR("ref_obj (%p) does not reference obj (%p). Aborting unref.", ref_obj, obj);
1226 eo_ref(const Eo *_obj)
1228 Eo *obj = (Eo *) _obj;
1229 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, obj);
1231 return _eo_ref(obj);
1235 _eo_del_internal(Eo *obj)
1238 /* We need that for the event callbacks that may ref/unref. */
1241 eo_do(obj, eo_event_callback_call(EO_EV_DEL, NULL, NULL));
1243 const Eo_Class *klass = eo_class_get(obj);
1244 Eo_Kls_Itr prev_state;
1246 _eo_kls_itr_init(klass, &obj->mro_itr, EO_NOOP, &prev_state);
1247 _eo_condtor_reset(obj);
1249 do_err = eo_do(obj, eo_destructor());
1250 if (EINA_UNLIKELY(!do_err))
1252 ERR("Object of class '%s' - One of the object destructors have failed.", klass->desc->name);
1255 if (!obj->condtor_done)
1257 const Eo_Class *cur_klass = _eo_kls_itr_get(&obj->mro_itr);
1258 ERR("Object of class '%s' - Not all of the object destructors have been executed, last destructor was of class: '%s'", klass->desc->name, cur_klass->desc->name);
1260 _eo_kls_itr_end(&obj->mro_itr, &prev_state);
1261 /*FIXME: add eo_class_unref(klass) ? - just to clear the caches. */
1264 Eina_List *itr, *itr_n;
1266 EINA_LIST_FOREACH_SAFE(obj->composite_objects, itr, itr_n, emb_obj)
1268 eo_composite_detach(emb_obj, obj);
1272 while (obj->children)
1274 eo_parent_set(EINA_INLIST_CONTAINER_GET(obj->children, Eo), NULL);
1277 obj->del = EINA_TRUE;
1284 EINA_MAGIC_SET(obj, EO_FREED_EINA_MAGIC);
1291 if (--(obj->refcount) == 0)
1295 ERR("Object %p already deleted.", obj);
1299 _eo_del_internal(obj);
1302 /* If for some reason it's not empty, clear it. */
1305 WRN("obj->xrefs is not empty, possibly a bug, please report. - An error will be reported for each xref in the stack.");
1306 Eina_Inlist *nitr = obj->xrefs->next;
1307 free(EINA_INLIST_CONTAINER_GET(obj->xrefs, Eo_Xref_Node));
1312 if (!obj->manual_free)
1315 _eo_ref(obj); /* If we manual free, we keep a phantom ref. */
1320 eo_unref(const Eo *_obj)
1322 Eo *obj = (Eo *) _obj;
1323 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1329 eo_del(const Eo *obj)
1331 eo_parent_set((Eo *) obj, NULL);
1336 eo_ref_get(const Eo *obj)
1338 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, 0);
1340 return obj->refcount;
1344 eo_parent_get(const Eo *obj)
1346 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, NULL);
1352 eo_error_set_internal(const Eo *obj, const char *file, int line)
1354 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1356 ERR("Error with obj '%p' at %s:%d", obj, file, line);
1358 ((Eo *) obj)->do_error = EINA_TRUE;
1362 _eo_condtor_done(Eo *obj)
1364 if (obj->condtor_done)
1366 ERR("Object %p is already constructed at this point.", obj);
1370 obj->condtor_done = EINA_TRUE;
1374 _eo_condtor_reset(Eo *obj)
1376 obj->condtor_done = EINA_FALSE;
1379 static inline void *
1380 _eo_data_get(const Eo *obj, const Eo_Class *klass)
1382 if (EINA_LIKELY(klass->desc->data_size > 0))
1384 if (EINA_UNLIKELY(klass->desc->type == EO_CLASS_TYPE_MIXIN))
1386 Eo_Extension_Data_Offset *doff_itr =
1387 eo_class_get(obj)->extn_data_off;
1392 while (doff_itr->klass)
1394 if (doff_itr->klass == klass)
1395 return ((char *) obj) + EO_ALIGN_SIZE(sizeof(*obj)) +
1402 return ((char *) obj) + EO_ALIGN_SIZE(sizeof(*obj)) +
1411 eo_data_get(const Eo *obj, const Eo_Class *klass)
1414 EO_MAGIC_RETURN_VAL(obj, EO_EINA_MAGIC, NULL);
1417 if (!_eo_class_mro_has(obj->klass, klass))
1419 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);
1424 ret = _eo_data_get(obj, klass);
1427 if (!ret && (klass->desc->data_size == 0))
1429 ERR("Tried getting data of class '%s', but it has none..", klass->desc->name);
1439 const char *log_dom = "eo";
1440 if (_eo_init_count++ > 0)
1446 _eo_classes_last_id = EO_STATIC_IDS_LAST;
1447 _eo_log_dom = eina_log_domain_register(log_dom, EINA_COLOR_LIGHTBLUE);
1448 if (_eo_log_dom < 0)
1450 EINA_LOG_ERR("Could not register log domain: %s", log_dom);
1454 if (!eina_lock_new(&_eo_class_creation_lock))
1456 EINA_LOG_ERR("Could not init lock.");
1460 eina_magic_string_static_set(EO_EINA_MAGIC, EO_EINA_MAGIC_STR);
1461 eina_magic_string_static_set(EO_FREED_EINA_MAGIC,
1462 EO_FREED_EINA_MAGIC_STR);
1463 eina_magic_string_static_set(EO_CLASS_EINA_MAGIC,
1464 EO_CLASS_EINA_MAGIC_STR);
1473 Eo_Class **cls_itr = _eo_classes;
1475 if (--_eo_init_count > 0)
1478 for (i = 0 ; i < _eo_classes_last_id ; i++, cls_itr++)
1481 eo_class_free(*cls_itr);
1487 eina_lock_free(&_eo_class_creation_lock);
1489 eina_log_domain_unregister(_eo_log_dom);
1497 eo_composite_attach(Eo *comp_obj, Eo *parent)
1499 EO_MAGIC_RETURN(comp_obj, EO_EINA_MAGIC);
1500 EO_MAGIC_RETURN(parent, EO_EINA_MAGIC);
1502 comp_obj->composite = EINA_TRUE;
1503 eo_parent_set(comp_obj, parent);
1504 parent->composite_objects = eina_list_prepend(parent->composite_objects, comp_obj);
1508 eo_composite_detach(Eo *comp_obj, Eo *parent)
1510 EO_MAGIC_RETURN(comp_obj, EO_EINA_MAGIC);
1511 EO_MAGIC_RETURN(parent, EO_EINA_MAGIC);
1513 comp_obj->composite = EINA_FALSE;
1514 parent->composite_objects = eina_list_remove(parent->composite_objects, comp_obj);
1515 eo_parent_set(comp_obj, NULL);
1519 eo_composite_is(const Eo *comp_obj)
1521 if (!EINA_MAGIC_CHECK(comp_obj, EO_EINA_MAGIC))
1523 EINA_MAGIC_FAIL(comp_obj, EO_EINA_MAGIC);
1527 return comp_obj->composite;
1531 eo_manual_free_set(Eo *obj, Eina_Bool manual_free)
1533 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1534 obj->manual_free = manual_free;
1538 eo_manual_free(Eo *obj)
1540 EO_MAGIC_RETURN(obj, EO_EINA_MAGIC);
1542 if (EINA_FALSE == obj->manual_free)
1544 ERR("Tried to manually free the object %p while the option has not been set; see eo_manual_free_set for more information.", obj);
1550 ERR("Tried deleting the object %p while still referenced(%d).", obj, eo_ref_get(obj));