4 #include "eobj_private.h"
8 typedef int Eobj_Class_Id;
10 int _eobj_log_dom = -1;
12 static Eobj_Class **_eobj_classes;
13 static Eobj_Class_Id _eobj_classes_last_id;
14 static Eina_Bool _eobj_init_count = 0;
16 static void _eobj_callback_remove_all(Eobj *obj);
17 static void eobj_class_constructor(Eobj *obj, const Eobj_Class *klass);
18 static void eobj_class_destructor(Eobj *obj, const Eobj_Class *klass);
19 static void eobj_constructor_error_unset(Eobj *obj);
21 typedef struct _Eobj_Callback_Description Eobj_Callback_Description;
26 const Eobj_Class *klass;
33 Eina_List *composite_objects;
35 Eina_Inlist *callbacks;
41 Eina_Bool construct_error:1;
45 /* Dich search, split to 0xff 0xff 0xffff */
47 #define DICH_CHAIN1_MASK (0xff)
48 #define DICH_CHAIN2_MASK (0xff)
49 #define DICH_CHAIN_LAST_MASK (0xffff)
50 #define DICH_CHAIN1_SIZE (DICH_CHAIN1_MASK + 1)
51 #define DICH_CHAIN2_SIZE (DICH_CHAIN2_MASK + 1)
52 #define DICH_CHAIN_LAST_SIZE (DICH_CHAIN_LAST_MASK + 1)
53 #define DICH_CHAIN1(x) (((x) >> 24) & DICH_CHAIN1_MASK)
54 #define DICH_CHAIN2(x) (((x) >> 16) & DICH_CHAIN2_MASK)
55 #define DICH_CHAIN_LAST(x) ((x) & DICH_CHAIN_LAST_MASK)
57 #define OP_CLASS_OFFSET 16
58 #define OP_CLASS_OFFSET_GET(x) (((x) >> OP_CLASS_OFFSET) & 0xffff)
59 #define OP_CLASS_GET(op) ({ \
60 Eobj_Class_Id tmp = OP_CLASS_OFFSET_GET(op); \
61 (Eobj_Class *) ((tmp <= _eobj_classes_last_id) && (tmp > 0)) ? \
62 (_eobj_classes[tmp - 1]) : NULL; \
64 #define OP_SUB_ID_GET(op) ((op) & 0xffff)
66 /* Structure of Eobj_Op is:
71 typedef struct _Dich_Chain1 Dich_Chain1;
75 eobj_op_func_type func;
91 const Eobj_Class *klass;
92 } Eobj_Extension_Node;
96 Eobj_Class_Id class_id;
97 const Eobj_Class *parent;
98 const Eobj_Class_Description *desc;
99 Dich_Chain1 chain[DICH_CHAIN1_SIZE];
100 Eina_Inlist *extensions;
102 const Eobj_Class **mro;
104 size_t data_offset; /* < Offset of the data within object data. */
106 Eina_Bool constructed : 1;
109 static inline eobj_op_func_type
110 dich_func_get(const Eobj_Class *klass, Eobj_Op op)
112 const Dich_Chain1 *chain1 = &klass->chain[DICH_CHAIN1(op)];
113 if (!chain1) return NULL;
114 if (!chain1->chain) return NULL;
115 Dich_Chain2 *chain2 = &chain1->chain[DICH_CHAIN2(op)];
116 if (!chain2) return NULL;
117 if (!chain2->funcs) return NULL;
119 /* num_ops is calculated from the class. */
120 const Eobj_Class *op_klass = OP_CLASS_GET(op);
121 if (!op_klass || (DICH_CHAIN_LAST(op) >= op_klass->desc->ops.count))
124 return chain2->funcs[DICH_CHAIN_LAST(op)].func;
128 dich_func_set(Eobj_Class *klass, Eobj_Op op, eobj_op_func_type func)
130 const Eobj_Class *op_klass = OP_CLASS_GET(op);
133 /* Verify op is valid. */
136 /* num_ops is calculated from the class. */
137 num_ops = op_klass->desc->ops.count;
138 if (DICH_CHAIN_LAST(op) >= num_ops)
140 ERR("OP %x is too big for the domain '%s', expected value < %x.",
141 op, op_klass->desc->name, op_klass->desc->ops.count);
146 ERR("OP %x is from an illegal class.", op);
150 Dich_Chain1 *chain1 = &klass->chain[DICH_CHAIN1(op)];
153 klass->chain[DICH_CHAIN1(op)].chain =
155 calloc(DICH_CHAIN2_SIZE, sizeof(*(chain1->chain)));
158 Dich_Chain2 *chain2 = &chain1->chain[DICH_CHAIN2(op)];
161 chain2->funcs = chain1->chain[DICH_CHAIN2(op)].funcs =
162 calloc(num_ops, sizeof(*(chain2->funcs)));
165 chain2->funcs[DICH_CHAIN_LAST(op)].func = func;
169 dich_func_clean_all(Eobj_Class *klass)
172 Dich_Chain1 *chain1 = klass->chain;
174 for (i = 0 ; i < DICH_CHAIN1_SIZE ; i++, chain1++)
177 Dich_Chain2 *chain2 = chain1->chain;
182 for (j = 0 ; j < DICH_CHAIN2_SIZE ; j++, chain2++)
187 chain1->chain = NULL;
193 static const Eobj_Op_Description noop_desc =
194 EOBJ_OP_DESCRIPTION(EOBJ_NOOP, "", "No operation.");
196 static const Eobj_Op_Description *
197 _eobj_op_id_desc_get(Eobj_Op op)
199 const Eobj_Class *klass = OP_CLASS_GET(op);
200 Eobj_Op sub_id = OP_SUB_ID_GET(op);
205 if (klass && (sub_id < klass->desc->ops.count))
206 return klass->desc->ops.descs + sub_id;
212 _eobj_op_id_name_get(Eobj_Op op)
214 const Eobj_Op_Description *desc = _eobj_op_id_desc_get(op);
215 return (desc) ? desc->name : NULL;
222 const Eobj_Class **kls_itr;
225 static inline Eina_Bool
226 _eobj_kls_itr_init(Eobj *obj, Eobj_Op op)
230 Eobj_Kls_Itr_Node *node =
231 EINA_INLIST_CONTAINER_GET(obj->kls_itr, Eobj_Kls_Itr_Node);
240 Eobj_Kls_Itr_Node *node = calloc(1, sizeof(*node));
242 node->kls_itr = obj->klass->mro;
243 obj->kls_itr = eina_inlist_prepend(obj->kls_itr,
244 EINA_INLIST_GET(node));
251 _eobj_kls_itr_end(Eobj *obj, Eobj_Op op)
253 Eobj_Kls_Itr_Node *node =
254 EINA_INLIST_CONTAINER_GET(obj->kls_itr, Eobj_Kls_Itr_Node);
259 obj->kls_itr = eina_inlist_remove(obj->kls_itr, obj->kls_itr);
263 static inline const Eobj_Class *
264 _eobj_kls_itr_get(Eobj *obj)
266 Eobj_Kls_Itr_Node *node =
267 EINA_INLIST_CONTAINER_GET(obj->kls_itr, Eobj_Kls_Itr_Node);
269 return (node) ? *(node->kls_itr) : NULL;
272 static inline const Eobj_Class *
273 _eobj_kls_itr_next(Eobj *obj, Eobj_Op op)
275 Eobj_Kls_Itr_Node *node =
276 EINA_INLIST_CONTAINER_GET(obj->kls_itr, Eobj_Kls_Itr_Node);
278 if (!node || (node->op != op))
280 Eobj_Op node_op = (node) ? node->op : EOBJ_NOOP;
281 ERR("Called with op %d ('%s') while expecting: %d ('%s'). This probaly means you called eobj_*_super functions from a wrong place.",
282 op, _eobj_op_id_name_get(op),
283 node_op, _eobj_op_id_name_get(node_op));
287 const Eobj_Class **kls_itr = node->kls_itr;
291 node->kls_itr = kls_itr;
300 static inline Eina_Bool
301 _eobj_kls_itr_reached_end(const Eobj *obj)
303 Eobj_Kls_Itr_Node *node =
304 EINA_INLIST_CONTAINER_GET(obj->kls_itr, Eobj_Kls_Itr_Node);
305 const Eobj_Class **kls_itr = node->kls_itr;
306 return !(*kls_itr && *(kls_itr + 1));
310 _eobj_op_internal(Eobj *obj, Eobj_Op op, va_list *p_list)
312 const Eobj_Class *klass;
313 Eina_Bool ret = EINA_FALSE;
316 _itr_init = _eobj_kls_itr_init(obj, op);
317 klass = _eobj_kls_itr_get(obj);
320 eobj_op_func_type func = dich_func_get(klass, op);
324 func(obj, eobj_data_get(obj, klass), p_list);
329 klass = _eobj_kls_itr_next(obj, op);
332 /* Try composite objects */
336 EINA_LIST_FOREACH(obj->composite_objects, itr, emb_obj)
338 if (_eobj_op_internal(emb_obj, op, p_list))
348 if (_itr_init) _eobj_kls_itr_end(obj, op);
352 static inline Eina_Bool
353 _eobj_ops_internal(Eobj *obj, va_list *p_list)
355 Eina_Bool ret = EINA_TRUE;
358 op = va_arg(*p_list, Eobj_Op);
361 if (!_eobj_op_internal(obj, op, p_list))
363 const Eobj_Class *op_klass = OP_CLASS_GET(op);
364 const char *_dom_name = (op_klass) ? op_klass->desc->name : NULL;
365 ERR("Can't find func for op %x ('%s' of domain '%s') for class '%s'. Aborting.",
366 op, _eobj_op_id_name_get(op), _dom_name,
367 obj->klass->desc->name);
371 op = va_arg(*p_list, Eobj_Op);
378 eobj_do_internal(Eobj *obj, ...)
383 va_start(p_list, obj);
384 ret = _eobj_ops_internal(obj, &p_list);
391 eobj_do_super(Eobj *obj, Eobj_Op op, ...)
393 const Eobj_Class *obj_klass;
394 Eina_Bool ret = EINA_TRUE;
397 /* Advance the kls itr. */
398 obj_klass = _eobj_kls_itr_next(obj, op);
405 va_start(p_list, op);
406 if (!_eobj_op_internal(obj, op, &p_list))
408 const Eobj_Class *op_klass = OP_CLASS_GET(op);
409 const char *_dom_name = (op_klass) ? op_klass->desc->name : NULL;
410 ERR("Can't find func for op %x ('%s' of domain '%s') for class '%s'. Aborting.",
411 op, _eobj_op_id_name_get(op), _dom_name,
412 (obj_klass) ? obj_klass->desc->name : NULL);
420 EAPI const Eobj_Class *
421 eobj_class_get(const Eobj *obj)
427 eobj_class_name_get(const Eobj_Class *klass)
429 return klass->desc->name;
433 _eobj_class_base_op_init(Eobj_Class *klass)
435 const Eobj_Class_Description *desc = klass->desc;
436 if (!desc || !desc->ops.base_op_id)
439 /* FIXME: Depends on values defined above! */
440 *(desc->ops.base_op_id) = klass->class_id << OP_CLASS_OFFSET;
444 _eobj_class_mro_add(Eina_List *mro, const Eobj_Class *klass)
446 Eina_List *extn_pos = NULL;
447 Eina_Bool check_consistency = !mro;
451 mro = eina_list_append(mro, klass);
453 /* Recursively add extenions. */
455 Eobj_Extension_Node *extn;
456 EINA_INLIST_FOREACH(klass->extensions, extn)
458 mro = _eobj_class_mro_add(mro, extn->klass);
462 if (check_consistency)
464 extn_pos = eina_list_append(extn_pos, eina_list_last(mro));
469 /* Check if we can create a consistent mro. We only do it for the class
470 * we are working on (i.e no parents). */
471 if (check_consistency)
473 Eobj_Extension_Node *extn;
475 Eina_List *itr = extn_pos;
476 EINA_INLIST_FOREACH(klass->extensions, extn)
478 /* Get the first one after the extension. */
479 Eina_List *extn_list = eina_list_next(eina_list_data_get(itr));
481 /* If we found the extension again. */
482 if (eina_list_data_find_list(extn_list, extn->klass))
485 ERR("Cannot create a consistent method resolution order for class '%s' because of '%s'.", klass->desc->name, extn->klass->desc->name);
489 itr = eina_list_next(itr);
494 mro = _eobj_class_mro_add(mro, klass->parent);
500 _eobj_class_mro_init(Eobj_Class *klass)
502 Eina_List *mro = NULL;
504 DBG("Started creating MRO for class '%s'", klass->desc->name);
505 mro = _eobj_class_mro_add(mro, klass);
510 /* Remove duplicates and make them the right order. */
512 Eina_List *itr1, *itr2, *itr2n;
514 itr1 = eina_list_last(mro);
517 itr2 = eina_list_prev(itr1);
521 itr2n = eina_list_prev(itr2);
523 if (eina_list_data_get(itr1) == eina_list_data_get(itr2))
525 mro = eina_list_remove_list(mro, itr2);
531 itr1 = eina_list_prev(itr1);
535 /* Copy the mro and free the list. */
537 const Eobj_Class *kls_itr;
538 const Eobj_Class **mro_itr;
539 klass->mro = calloc(sizeof(*klass->mro), eina_list_count(mro) + 1);
541 mro_itr = klass->mro;
543 EINA_LIST_FREE(mro, kls_itr)
545 *(mro_itr++) = kls_itr;
547 DBG("Added '%s' to MRO", kls_itr->desc->name);
552 DBG("Finished creating MRO for class '%s'", klass->desc->name);
558 _eobj_class_constructor(Eobj_Class *klass)
560 if (klass->constructed)
563 klass->constructed = EINA_TRUE;
565 if (klass->desc->class_constructor)
566 klass->desc->class_constructor(klass);
570 eobj_class_funcs_set(Eobj_Class *klass, const Eobj_Op_Func_Description *func_descs)
572 const Eobj_Op_Func_Description *itr;
576 for ( ; itr->op != 0 ; itr++)
578 dich_func_set(klass, itr->op, itr->func);
584 eobj_class_free(Eobj_Class *klass)
586 if (klass->constructed)
588 if (klass->desc->class_destructor)
589 klass->desc->class_destructor(klass);
591 dich_func_clean_all(klass);
596 Eobj_Extension_Node *extn;
597 EINA_INLIST_FOREACH_SAFE(klass->extensions, itrn, extn)
610 _eobj_class_check_op_descs(const Eobj_Class *klass)
612 const Eobj_Class_Description *desc = klass->desc;
613 const Eobj_Op_Description *itr;
616 if (desc->ops.count > 0)
618 if (!desc->ops.base_op_id)
620 ERR("Class '%s' has a non-zero ops count, but base_id is NULL.",
625 if (!desc->ops.descs)
627 ERR("Class '%s' has a non-zero ops count, but there are no descs.",
633 itr = desc->ops.descs;
634 for (i = 0 ; i < desc->ops.count ; i++, itr++)
636 if (itr->sub_op != i)
640 ERR("Wrong order in Ops description for class '%s'. Expected %d and got %d", desc->name, i, itr->sub_op);
644 ERR("Found too few Ops description for class '%s'. Expected %d descriptions, but found %d.", desc->name, desc->ops.count, i);
650 if (itr && itr->name)
652 ERR("Found extra Ops description for class '%s'. Expected %d descriptions, but found more.", desc->name, desc->ops.count);
659 EAPI const Eobj_Class *
660 eobj_class_new(const Eobj_Class_Description *desc, const Eobj_Class *parent, ...)
665 va_start(p_list, parent);
667 #define _CLS_NEW_CHECK(x) \
672 ERR("%s must not be NULL! Aborting.", #x); \
678 _CLS_NEW_CHECK(desc);
679 _CLS_NEW_CHECK(desc->name);
681 klass = calloc(1, sizeof(Eobj_Class));
682 klass->parent = parent;
684 /* Handle class extensions */
686 Eobj_Class *extn = NULL;
688 extn = va_arg(p_list, Eobj_Class *);
691 switch (extn->desc->type)
693 case EOBJ_CLASS_TYPE_REGULAR:
694 case EOBJ_CLASS_TYPE_REGULAR_NO_INSTANT:
695 /* Use it like an interface. */
696 case EOBJ_CLASS_TYPE_INTERFACE:
698 case EOBJ_CLASS_TYPE_MIXIN:
700 Eobj_Extension_Node *node = calloc(1, sizeof(*node));
703 eina_inlist_append(klass->extensions,
704 EINA_INLIST_GET(node));
709 extn = va_arg(p_list, Eobj_Class *);
715 /* Handle the inheritance */
718 /* Verify the inheritance is allowed. */
719 switch (klass->desc->type)
721 case EOBJ_CLASS_TYPE_REGULAR:
722 case EOBJ_CLASS_TYPE_REGULAR_NO_INSTANT:
723 if ((klass->parent->desc->type != EOBJ_CLASS_TYPE_REGULAR) &&
724 (klass->parent->desc->type != EOBJ_CLASS_TYPE_REGULAR_NO_INSTANT))
726 ERR("Regular classes ('%s') aren't allowed to inherit from non-regular classes ('%s').", klass->desc->name, klass->parent->desc->name);
730 case EOBJ_CLASS_TYPE_INTERFACE:
731 case EOBJ_CLASS_TYPE_MIXIN:
732 if ((klass->parent->desc->type != EOBJ_CLASS_TYPE_INTERFACE) &&
733 (klass->parent->desc->type != EOBJ_CLASS_TYPE_MIXIN))
735 ERR("Non-regular classes ('%s') aren't allowed to inherit from regular classes ('%s').", klass->desc->name, klass->parent->desc->name);
742 /* Update the current offset. */
743 /* FIXME: Make sure this alignment is enough. */
744 klass->data_offset = klass->parent->data_offset +
745 klass->parent->desc->data_size +
747 (klass->parent->desc->data_size % sizeof(void *)));
750 if (!_eobj_class_check_op_descs(klass))
755 if (!_eobj_class_mro_init(klass))
760 klass->class_id = ++_eobj_classes_last_id;
762 /* FIXME: Handle errors. */
764 tmp = realloc(_eobj_classes, _eobj_classes_last_id * sizeof(*_eobj_classes));
766 _eobj_classes[klass->class_id - 1] = klass;
769 _eobj_class_base_op_init(klass);
771 /* FIXME: Shouldn't be called here - should be called from eobj_add. */
772 _eobj_class_constructor(klass);
779 eobj_class_free(klass);
782 #undef _CLS_NEW_CHECK
785 eobj_add(const Eobj_Class *klass, Eobj *parent)
787 if (klass->desc->type != EOBJ_CLASS_TYPE_REGULAR)
789 ERR("Class '%s' is not instantiate-able. Aborting.", klass->desc->name);
793 Eobj *obj = calloc(1, sizeof(*obj));
795 obj->parent = parent;
799 obj->data_blob = calloc(1, klass->data_offset + klass->desc->data_size);
801 _eobj_kls_itr_init(obj, EOBJ_NOOP);
802 eobj_constructor_error_unset(obj);
805 eobj_class_constructor(obj, klass);
807 if (eobj_constructor_error_get(obj))
809 ERR("Type '%s' - One of the object constructors have failed.", klass->desc->name);
813 if (!_eobj_kls_itr_reached_end(obj))
815 ERR("Type '%s' - Not all of the object constructors have been executed.", klass->desc->name);
818 _eobj_kls_itr_end(obj, EOBJ_NOOP);
824 /* Unref twice, once for the ref above, and once for the basic object ref. */
839 eobj_xref_internal(Eobj *obj, const Eobj *ref_obj, const char *file, int line)
844 Eobj_Xref_Node *xref = calloc(1, sizeof(*xref));
845 xref->ref_obj = ref_obj;
849 /* FIXME: Make it sorted. */
850 obj->xrefs = eina_inlist_prepend(obj->xrefs, EINA_INLIST_GET(xref));
861 eobj_xunref(Eobj *obj, const Eobj *ref_obj)
864 Eobj_Xref_Node *xref = NULL;
865 EINA_INLIST_FOREACH(obj->xrefs, xref)
867 if (xref->ref_obj == ref_obj)
873 obj->xrefs = eina_inlist_remove(obj->xrefs, EINA_INLIST_GET(xref));
878 ERR("ref_obj (%p) does not reference obj (%p). Aborting unref.", ref_obj, obj);
895 eobj_unref(Eobj *obj)
897 if (--(obj->refcount) == 0)
899 /* We need that for the event callbacks that may ref/unref. */
904 eobj_event_callback_call(obj, EOBJ_EV_DEL, NULL);
905 obj->delete = EINA_TRUE;
907 eobj_event_callback_call(obj, EOBJ_EV_FREE, NULL);
911 const Eobj_Class *klass = eobj_class_get(obj);
912 _eobj_kls_itr_init(obj, EOBJ_NOOP);
913 eobj_constructor_error_unset(obj);
914 eobj_class_destructor(obj, klass);
915 if (eobj_constructor_error_get(obj))
917 ERR("Type '%s' - One of the object destructors have failed.", klass->desc->name);
920 if (!_eobj_kls_itr_reached_end(obj))
922 ERR("Type '%s' - Not all of the object destructors have been executed.", klass->desc->name);
924 _eobj_kls_itr_end(obj, EOBJ_NOOP);
925 /*FIXME: add eobj_class_unref(klass) ? - just to clear the caches. */
927 /* If for some reason it's not empty, clear it. */
930 WRN("Kls_Itr is not empty, possibly a bug, please report. - An error will be reported for each kls_itr in the stack.");
931 Eina_Inlist *nitr = nitr->next;
932 free(EINA_INLIST_CONTAINER_GET(obj->kls_itr, Eobj_Kls_Itr_Node));
937 /* If for some reason it's not empty, clear it. */
940 WRN("obj->xrefs is not empty, possibly a bug, please report. - An error will be reported for each xref in the stack.");
941 Eina_Inlist *nitr = nitr->next;
942 free(EINA_INLIST_CONTAINER_GET(obj->xrefs, Eobj_Kls_Itr_Node));
947 Eina_List *itr, *itr_n;
949 EINA_LIST_FOREACH_SAFE(obj->composite_objects, itr, itr_n, emb_obj)
951 eobj_composite_object_detach(obj, emb_obj);
954 _eobj_callback_remove_all(obj);
957 free(obj->data_blob);
964 eobj_ref_get(const Eobj *obj)
966 return obj->refcount;
969 /* Weak reference. */
971 _eobj_weak_ref_cb(void *data, Eobj *obj __UNUSED__, const Eobj_Event_Description *desc __UNUSED__, void *event_info __UNUSED__)
973 Eobj_Weak_Ref *wref = data;
980 eobj_weak_ref_new(const Eobj *_obj)
982 Eobj *obj = (Eobj *) _obj;
983 Eobj_Weak_Ref *wref = calloc(1, sizeof(*wref));
985 eobj_event_callback_add(obj, EOBJ_EV_DEL, _eobj_weak_ref_cb, wref);
991 eobj_weak_ref_free(Eobj_Weak_Ref *wref)
995 eobj_event_callback_del_full(wref->obj, EOBJ_EV_DEL, _eobj_weak_ref_cb,
1001 /* EOF Weak reference. */
1008 eobj_event_callback_call(obj, EOBJ_EV_DEL, NULL);
1009 obj->delete = EINA_TRUE;
1015 eobj_parent_get(Eobj *obj)
1021 eobj_constructor_error_set(Eobj *obj)
1023 obj->construct_error = EINA_TRUE;
1027 eobj_constructor_error_unset(Eobj *obj)
1029 obj->construct_error = EINA_FALSE;
1033 eobj_constructor_error_get(const Eobj *obj)
1035 return obj->construct_error;
1039 _eobj_constructor_default(Eobj *obj)
1041 eobj_constructor_super(obj);
1045 _eobj_destructor_default(Eobj *obj)
1047 eobj_destructor_super(obj);
1051 eobj_class_constructor(Eobj *obj, const Eobj_Class *klass)
1056 if (klass->desc->constructor)
1057 klass->desc->constructor(obj, eobj_data_get(obj, klass));
1059 _eobj_constructor_default(obj);
1063 eobj_class_destructor(Eobj *obj, const Eobj_Class *klass)
1068 if (klass->desc->destructor)
1069 klass->desc->destructor(obj, eobj_data_get(obj, klass));
1071 _eobj_destructor_default(obj);
1075 eobj_constructor_super(Eobj *obj)
1077 eobj_class_constructor(obj, _eobj_kls_itr_next(obj, EOBJ_NOOP));
1081 eobj_destructor_super(Eobj *obj)
1083 eobj_class_destructor(obj, _eobj_kls_itr_next(obj, EOBJ_NOOP));
1087 eobj_data_get(Eobj *obj, const Eobj_Class *klass)
1089 /* FIXME: Add a check that this is of the right klass and we don't seg.
1090 * Probably just return NULL. */
1091 if (klass->desc->data_size > 0)
1092 return ((char *) obj->data_blob) + klass->data_offset;
1100 const char *log_dom = "eobj";
1101 if (_eobj_init_count++ > 0)
1106 _eobj_classes = NULL;
1107 _eobj_classes_last_id = 0;
1108 _eobj_log_dom = eina_log_domain_register(log_dom, EINA_COLOR_LIGHTBLUE);
1109 if (_eobj_log_dom < 0)
1111 EINA_LOG_ERR("Could not register log domain: %s", log_dom);
1122 Eobj_Class **cls_itr = _eobj_classes;
1124 if (--_eobj_init_count > 0)
1127 for (i = 0 ; i < _eobj_classes_last_id ; i++, cls_itr++)
1130 eobj_class_free(*cls_itr);
1134 free(_eobj_classes);
1136 eina_log_domain_unregister(_eobj_log_dom);
1144 eobj_composite_object_attach(Eobj *obj, Eobj *emb_obj)
1146 eobj_xref(emb_obj, obj);
1147 obj->composite_objects = eina_list_prepend(obj->composite_objects, emb_obj);
1151 eobj_composite_object_detach(Eobj *obj, Eobj *emb_obj)
1153 obj->composite_objects = eina_list_remove(obj->composite_objects, emb_obj);
1154 eobj_xunref(emb_obj, obj);
1158 eobj_composite_is(Eobj *emb_obj)
1160 Eobj *obj = eobj_parent_get(emb_obj);
1167 EINA_LIST_FOREACH(obj->composite_objects, itr, tmp)
1177 struct _Eobj_Callback_Description
1180 const Eobj_Event_Description *event;
1183 Eobj_Callback_Priority priority;
1184 Eina_Bool delete_me : 1;
1187 /* Actually remove, doesn't care about walking list, or delete_me */
1189 _eobj_callback_remove(Eobj *obj, Eobj_Callback_Description *cb)
1191 obj->callbacks = eina_inlist_remove(obj->callbacks,
1192 EINA_INLIST_GET(cb));
1196 /* Actually remove, doesn't care about walking list, or delete_me */
1198 _eobj_callback_remove_all(Eobj *obj)
1201 Eobj_Callback_Description *cb;
1202 EINA_INLIST_FOREACH_SAFE(obj->callbacks, initr, cb)
1204 _eobj_callback_remove(obj, cb);
1209 _eobj_callbacks_clear(Eobj *obj)
1212 Eobj_Callback_Description *cb;
1214 /* Abort if we are currently walking the list. */
1215 if (obj->walking_list > 0)
1218 EINA_INLIST_FOREACH_SAFE(obj->callbacks, itn, cb)
1222 _eobj_callback_remove(obj, cb);
1228 _callback_priority_cmp(const void *_a, const void *_b)
1230 const Eobj_Callback_Description *a, *b;
1231 a = (const Eobj_Callback_Description *) _a;
1232 b = (const Eobj_Callback_Description *) _b;
1233 if (a->priority < b->priority)
1240 eobj_event_callback_priority_add(Eobj *obj,
1241 const Eobj_Event_Description *desc,
1242 Eobj_Callback_Priority priority,
1246 Eobj_Callback_Description *cb = calloc(1, sizeof(*cb));
1249 cb->func_data = (void *) data;
1250 cb->priority = priority;
1251 obj->callbacks = eina_inlist_sorted_insert(obj->callbacks,
1252 EINA_INLIST_GET(cb), _callback_priority_cmp);
1254 eobj_event_callback_call(obj, EOBJ_EV_CALLBACK_ADD, desc);
1260 eobj_event_callback_del(Eobj *obj, const Eobj_Event_Description *desc, Eobj_Event_Cb func)
1263 Eobj_Callback_Description *cb;
1264 EINA_INLIST_FOREACH(obj->callbacks, cb)
1266 if ((cb->event == desc) && (cb->func == func))
1270 data = cb->func_data;
1271 cb->delete_me = EINA_TRUE;
1272 _eobj_callbacks_clear(obj);
1281 eobj_event_callback_call(obj, EOBJ_EV_CALLBACK_DEL, desc);
1286 eobj_event_callback_del_full(Eobj *obj, const Eobj_Event_Description *desc, Eobj_Event_Cb func, const void *user_data)
1289 Eobj_Callback_Description *cb;
1290 EINA_INLIST_FOREACH(obj->callbacks, cb)
1292 if ((cb->event == desc) && (cb->func == func) &&
1293 (cb->func_data == user_data))
1297 data = cb->func_data;
1298 cb->delete_me = EINA_TRUE;
1299 _eobj_callbacks_clear(obj);
1308 eobj_event_callback_call(obj, EOBJ_EV_CALLBACK_DEL, desc);
1313 eobj_event_callback_call(Eobj *obj, const Eobj_Event_Description *desc,
1314 const void *event_info)
1316 Eina_Bool ret = EINA_TRUE;
1317 Eobj_Callback_Description *cb;
1320 obj->walking_list++;
1322 EINA_INLIST_FOREACH(obj->callbacks, cb)
1324 if (!cb->delete_me && (cb->event == desc))
1326 /* Abort callback calling if the func says so. */
1327 if (!cb->func((void *) cb->func_data, obj, desc,
1328 (void *) event_info))
1337 obj->walking_list--;
1338 _eobj_callbacks_clear(obj);
1345 _eobj_event_forwarder_callback(void *data, Eobj *obj, const Eobj_Event_Description *desc, void *event_info)
1348 Eobj *new_obj = (Eobj *) data;
1349 return eobj_event_callback_call(new_obj, desc, event_info);
1352 /* FIXME: Change default priority? Maybe call later? */
1354 eobj_event_callback_forwarder_add(Eobj *obj, const Eobj_Event_Description *desc, Eobj *new_obj)
1356 return eobj_event_callback_add(obj, desc, _eobj_event_forwarder_callback, new_obj);
1360 eobj_event_callback_forwarder_del(Eobj *obj, const Eobj_Event_Description *desc, Eobj *new_obj)
1362 eobj_event_callback_del_full(obj, desc, _eobj_event_forwarder_callback, new_obj);