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 #define EOBJ_ALIGN_SIZE(size) \
67 ((size) + (sizeof(void *) - ((size) % sizeof(void *))))
69 /* Structure of Eobj_Op is:
74 typedef struct _Dich_Chain1 Dich_Chain1;
78 eobj_op_func_type func;
94 const Eobj_Class *klass;
95 } Eobj_Extension_Node;
99 const Eobj_Class *klass;
101 } Eobj_Extension_Data_Offset;
105 Eobj_Class_Id class_id;
106 const Eobj_Class *parent;
107 const Eobj_Class_Description *desc;
108 Dich_Chain1 chain[DICH_CHAIN1_SIZE];
109 Eina_Inlist *extensions;
111 Eobj_Extension_Data_Offset *extn_data_off;
112 size_t extn_data_size;
114 const Eobj_Class **mro;
116 size_t data_offset; /* < Offset of the data within object data. */
118 Eina_Bool constructed : 1;
121 static inline eobj_op_func_type
122 dich_func_get(const Eobj_Class *klass, Eobj_Op op)
124 const Dich_Chain1 *chain1 = &klass->chain[DICH_CHAIN1(op)];
125 if (!chain1) return NULL;
126 if (!chain1->chain) return NULL;
127 Dich_Chain2 *chain2 = &chain1->chain[DICH_CHAIN2(op)];
128 if (!chain2) return NULL;
129 if (!chain2->funcs) return NULL;
131 /* num_ops is calculated from the class. */
132 const Eobj_Class *op_klass = OP_CLASS_GET(op);
133 if (!op_klass || (DICH_CHAIN_LAST(op) >= op_klass->desc->ops.count))
136 return chain2->funcs[DICH_CHAIN_LAST(op)].func;
140 dich_func_set(Eobj_Class *klass, Eobj_Op op, eobj_op_func_type func)
142 const Eobj_Class *op_klass = OP_CLASS_GET(op);
145 /* Verify op is valid. */
148 /* num_ops is calculated from the class. */
149 num_ops = op_klass->desc->ops.count;
150 if (DICH_CHAIN_LAST(op) >= num_ops)
152 ERR("OP %x is too big for the domain '%s', expected value < %x.",
153 op, op_klass->desc->name, op_klass->desc->ops.count);
158 ERR("OP %x is from an illegal class.", op);
162 Dich_Chain1 *chain1 = &klass->chain[DICH_CHAIN1(op)];
165 klass->chain[DICH_CHAIN1(op)].chain =
167 calloc(DICH_CHAIN2_SIZE, sizeof(*(chain1->chain)));
170 Dich_Chain2 *chain2 = &chain1->chain[DICH_CHAIN2(op)];
173 chain2->funcs = chain1->chain[DICH_CHAIN2(op)].funcs =
174 calloc(num_ops, sizeof(*(chain2->funcs)));
177 chain2->funcs[DICH_CHAIN_LAST(op)].func = func;
181 dich_func_clean_all(Eobj_Class *klass)
184 Dich_Chain1 *chain1 = klass->chain;
186 for (i = 0 ; i < DICH_CHAIN1_SIZE ; i++, chain1++)
189 Dich_Chain2 *chain2 = chain1->chain;
194 for (j = 0 ; j < DICH_CHAIN2_SIZE ; j++, chain2++)
199 chain1->chain = NULL;
205 static const Eobj_Op_Description noop_desc =
206 EOBJ_OP_DESCRIPTION(EOBJ_NOOP, "", "No operation.");
208 static const Eobj_Op_Description *
209 _eobj_op_id_desc_get(Eobj_Op op)
211 const Eobj_Class *klass = OP_CLASS_GET(op);
212 Eobj_Op sub_id = OP_SUB_ID_GET(op);
217 if (klass && (sub_id < klass->desc->ops.count))
218 return klass->desc->ops.descs + sub_id;
224 _eobj_op_id_name_get(Eobj_Op op)
226 const Eobj_Op_Description *desc = _eobj_op_id_desc_get(op);
227 return (desc) ? desc->name : NULL;
234 const Eobj_Class **kls_itr;
237 static inline Eina_Bool
238 _eobj_kls_itr_init(Eobj *obj, Eobj_Op op)
242 Eobj_Kls_Itr_Node *node =
243 EINA_INLIST_CONTAINER_GET(obj->kls_itr, Eobj_Kls_Itr_Node);
252 Eobj_Kls_Itr_Node *node = calloc(1, sizeof(*node));
254 node->kls_itr = obj->klass->mro;
255 obj->kls_itr = eina_inlist_prepend(obj->kls_itr,
256 EINA_INLIST_GET(node));
263 _eobj_kls_itr_end(Eobj *obj, Eobj_Op op)
265 Eobj_Kls_Itr_Node *node =
266 EINA_INLIST_CONTAINER_GET(obj->kls_itr, Eobj_Kls_Itr_Node);
271 obj->kls_itr = eina_inlist_remove(obj->kls_itr, obj->kls_itr);
275 static inline const Eobj_Class *
276 _eobj_kls_itr_get(Eobj *obj)
278 Eobj_Kls_Itr_Node *node =
279 EINA_INLIST_CONTAINER_GET(obj->kls_itr, Eobj_Kls_Itr_Node);
281 return (node) ? *(node->kls_itr) : NULL;
284 static inline const Eobj_Class *
285 _eobj_kls_itr_next(Eobj *obj, Eobj_Op op)
287 Eobj_Kls_Itr_Node *node =
288 EINA_INLIST_CONTAINER_GET(obj->kls_itr, Eobj_Kls_Itr_Node);
290 if (!node || (node->op != op))
292 Eobj_Op node_op = (node) ? node->op : EOBJ_NOOP;
293 ERR("Called with op %d ('%s') while expecting: %d ('%s'). This probaly means you called eobj_*_super functions from a wrong place.",
294 op, _eobj_op_id_name_get(op),
295 node_op, _eobj_op_id_name_get(node_op));
299 const Eobj_Class **kls_itr = node->kls_itr;
303 node->kls_itr = kls_itr;
312 static inline Eina_Bool
313 _eobj_kls_itr_reached_end(const Eobj *obj)
315 Eobj_Kls_Itr_Node *node =
316 EINA_INLIST_CONTAINER_GET(obj->kls_itr, Eobj_Kls_Itr_Node);
317 const Eobj_Class **kls_itr = node->kls_itr;
318 return !(*kls_itr && *(kls_itr + 1));
322 _eobj_op_internal(Eobj *obj, Eobj_Op op, va_list *p_list)
324 const Eobj_Class *klass;
325 Eina_Bool ret = EINA_FALSE;
328 _itr_init = _eobj_kls_itr_init(obj, op);
329 klass = _eobj_kls_itr_get(obj);
332 eobj_op_func_type func = dich_func_get(klass, op);
336 func(obj, eobj_data_get(obj, klass), p_list);
341 klass = _eobj_kls_itr_next(obj, op);
344 /* Try composite objects */
348 EINA_LIST_FOREACH(obj->composite_objects, itr, emb_obj)
350 if (_eobj_op_internal(emb_obj, op, p_list))
360 if (_itr_init) _eobj_kls_itr_end(obj, op);
364 static inline Eina_Bool
365 _eobj_ops_internal(Eobj *obj, va_list *p_list)
367 Eina_Bool ret = EINA_TRUE;
370 op = va_arg(*p_list, Eobj_Op);
373 if (!_eobj_op_internal(obj, op, p_list))
375 const Eobj_Class *op_klass = OP_CLASS_GET(op);
376 const char *_dom_name = (op_klass) ? op_klass->desc->name : NULL;
377 ERR("Can't find func for op %x ('%s' of domain '%s') for class '%s'. Aborting.",
378 op, _eobj_op_id_name_get(op), _dom_name,
379 obj->klass->desc->name);
383 op = va_arg(*p_list, Eobj_Op);
390 eobj_do_internal(Eobj *obj, ...)
395 va_start(p_list, obj);
396 ret = _eobj_ops_internal(obj, &p_list);
403 eobj_do_super(Eobj *obj, Eobj_Op op, ...)
405 const Eobj_Class *obj_klass;
406 Eina_Bool ret = EINA_TRUE;
409 /* Advance the kls itr. */
410 obj_klass = _eobj_kls_itr_next(obj, op);
417 va_start(p_list, op);
418 if (!_eobj_op_internal(obj, op, &p_list))
420 const Eobj_Class *op_klass = OP_CLASS_GET(op);
421 const char *_dom_name = (op_klass) ? op_klass->desc->name : NULL;
422 ERR("Can't find func for op %x ('%s' of domain '%s') for class '%s'. Aborting.",
423 op, _eobj_op_id_name_get(op), _dom_name,
424 (obj_klass) ? obj_klass->desc->name : NULL);
432 EAPI const Eobj_Class *
433 eobj_class_get(const Eobj *obj)
439 eobj_class_name_get(const Eobj_Class *klass)
441 return klass->desc->name;
445 _eobj_class_base_op_init(Eobj_Class *klass)
447 const Eobj_Class_Description *desc = klass->desc;
448 if (!desc || !desc->ops.base_op_id)
451 /* FIXME: Depends on values defined above! */
452 *(desc->ops.base_op_id) = klass->class_id << OP_CLASS_OFFSET;
456 _eobj_class_mro_add(Eina_List *mro, const Eobj_Class *klass)
458 Eina_List *extn_pos = NULL;
459 Eina_Bool check_consistency = !mro;
463 mro = eina_list_append(mro, klass);
465 /* Recursively add extenions. */
467 Eobj_Extension_Node *extn;
468 EINA_INLIST_FOREACH(klass->extensions, extn)
470 mro = _eobj_class_mro_add(mro, extn->klass);
474 if (check_consistency)
476 extn_pos = eina_list_append(extn_pos, eina_list_last(mro));
481 /* Check if we can create a consistent mro. We only do it for the class
482 * we are working on (i.e no parents). */
483 if (check_consistency)
485 Eobj_Extension_Node *extn;
487 Eina_List *itr = extn_pos;
488 EINA_INLIST_FOREACH(klass->extensions, extn)
490 /* Get the first one after the extension. */
491 Eina_List *extn_list = eina_list_next(eina_list_data_get(itr));
493 /* If we found the extension again. */
494 if (eina_list_data_find_list(extn_list, extn->klass))
497 ERR("Cannot create a consistent method resolution order for class '%s' because of '%s'.", klass->desc->name, extn->klass->desc->name);
501 itr = eina_list_next(itr);
506 mro = _eobj_class_mro_add(mro, klass->parent);
512 _eobj_class_mro_init(Eobj_Class *klass)
514 Eina_List *mro = NULL;
516 DBG("Started creating MRO for class '%s'", klass->desc->name);
517 mro = _eobj_class_mro_add(mro, klass);
522 /* Remove duplicates and make them the right order. */
524 Eina_List *itr1, *itr2, *itr2n;
526 itr1 = eina_list_last(mro);
529 itr2 = eina_list_prev(itr1);
533 itr2n = eina_list_prev(itr2);
535 if (eina_list_data_get(itr1) == eina_list_data_get(itr2))
537 mro = eina_list_remove_list(mro, itr2);
543 itr1 = eina_list_prev(itr1);
547 /* Copy the mro and free the list. */
549 const Eobj_Class *kls_itr;
550 const Eobj_Class **mro_itr;
551 klass->mro = calloc(sizeof(*klass->mro), eina_list_count(mro) + 1);
553 mro_itr = klass->mro;
555 EINA_LIST_FREE(mro, kls_itr)
557 *(mro_itr++) = kls_itr;
559 DBG("Added '%s' to MRO", kls_itr->desc->name);
564 DBG("Finished creating MRO for class '%s'", klass->desc->name);
570 _eobj_class_constructor(Eobj_Class *klass)
572 if (klass->constructed)
575 klass->constructed = EINA_TRUE;
577 if (klass->desc->class_constructor)
578 klass->desc->class_constructor(klass);
582 eobj_class_funcs_set(Eobj_Class *klass, const Eobj_Op_Func_Description *func_descs)
584 const Eobj_Op_Func_Description *itr;
588 for ( ; itr->op != 0 ; itr++)
590 dich_func_set(klass, itr->op, itr->func);
596 eobj_class_free(Eobj_Class *klass)
598 if (klass->constructed)
600 if (klass->desc->class_destructor)
601 klass->desc->class_destructor(klass);
603 dich_func_clean_all(klass);
608 Eobj_Extension_Node *extn;
609 EINA_INLIST_FOREACH_SAFE(klass->extensions, itrn, extn)
618 if (klass->extn_data_off)
619 free(klass->extn_data_off);
626 _eobj_class_check_op_descs(const Eobj_Class *klass)
628 const Eobj_Class_Description *desc = klass->desc;
629 const Eobj_Op_Description *itr;
632 if (desc->ops.count > 0)
634 if (!desc->ops.base_op_id)
636 ERR("Class '%s' has a non-zero ops count, but base_id is NULL.",
641 if (!desc->ops.descs)
643 ERR("Class '%s' has a non-zero ops count, but there are no descs.",
649 itr = desc->ops.descs;
650 for (i = 0 ; i < desc->ops.count ; i++, itr++)
652 if (itr->sub_op != i)
656 ERR("Wrong order in Ops description for class '%s'. Expected %d and got %d", desc->name, i, itr->sub_op);
660 ERR("Found too few Ops description for class '%s'. Expected %d descriptions, but found %d.", desc->name, desc->ops.count, i);
666 if (itr && itr->name)
668 ERR("Found extra Ops description for class '%s'. Expected %d descriptions, but found more.", desc->name, desc->ops.count);
675 EAPI const Eobj_Class *
676 eobj_class_new(const Eobj_Class_Description *desc, const Eobj_Class *parent, ...)
681 va_start(p_list, parent);
683 #define _CLS_NEW_CHECK(x) \
688 ERR("%s must not be NULL! Aborting.", #x); \
694 _CLS_NEW_CHECK(desc);
695 _CLS_NEW_CHECK(desc->name);
697 klass = calloc(1, sizeof(Eobj_Class));
698 klass->parent = parent;
700 /* Handle class extensions */
702 Eobj_Class *extn = NULL;
704 extn = va_arg(p_list, Eobj_Class *);
707 switch (extn->desc->type)
709 case EOBJ_CLASS_TYPE_REGULAR:
710 case EOBJ_CLASS_TYPE_REGULAR_NO_INSTANT:
711 /* Use it like an interface. */
712 case EOBJ_CLASS_TYPE_INTERFACE:
714 case EOBJ_CLASS_TYPE_MIXIN:
716 Eobj_Extension_Node *node = calloc(1, sizeof(*node));
719 eina_inlist_append(klass->extensions,
720 EINA_INLIST_GET(node));
725 extn = va_arg(p_list, Eobj_Class *);
731 /* Handle the inheritance */
734 /* Verify the inheritance is allowed. */
735 switch (klass->desc->type)
737 case EOBJ_CLASS_TYPE_REGULAR:
738 case EOBJ_CLASS_TYPE_REGULAR_NO_INSTANT:
739 if ((klass->parent->desc->type != EOBJ_CLASS_TYPE_REGULAR) &&
740 (klass->parent->desc->type != EOBJ_CLASS_TYPE_REGULAR_NO_INSTANT))
742 ERR("Regular classes ('%s') aren't allowed to inherit from non-regular classes ('%s').", klass->desc->name, klass->parent->desc->name);
746 case EOBJ_CLASS_TYPE_INTERFACE:
747 case EOBJ_CLASS_TYPE_MIXIN:
748 if ((klass->parent->desc->type != EOBJ_CLASS_TYPE_INTERFACE) &&
749 (klass->parent->desc->type != EOBJ_CLASS_TYPE_MIXIN))
751 ERR("Non-regular classes ('%s') aren't allowed to inherit from regular classes ('%s').", klass->desc->name, klass->parent->desc->name);
758 /* Update the current offset. */
759 /* FIXME: Make sure this alignment is enough. */
760 klass->data_offset = klass->parent->data_offset +
761 EOBJ_ALIGN_SIZE(klass->parent->desc->data_size);
764 if (!_eobj_class_check_op_descs(klass))
769 if (!_eobj_class_mro_init(klass))
774 /* create MIXIN offset table. */
776 const Eobj_Class **mro_itr = klass->mro;
777 Eobj_Extension_Data_Offset *extn_data_itr;
779 size_t extn_data_off = klass->data_offset +
780 EOBJ_ALIGN_SIZE(klass->desc->data_size);
782 /* FIXME: Make faster... */
785 if (((*mro_itr)->desc->type == EOBJ_CLASS_TYPE_MIXIN) &&
786 ((*mro_itr)->desc->data_size > 0))
793 klass->extn_data_off = calloc(extn_num + 1,
794 sizeof(*klass->extn_data_off));
796 extn_data_itr = klass->extn_data_off;
797 mro_itr = klass->mro;
800 if (((*mro_itr)->desc->type == EOBJ_CLASS_TYPE_MIXIN) &&
801 ((*mro_itr)->desc->data_size > 0))
803 extn_data_itr->klass = *mro_itr;
804 extn_data_itr->offset = extn_data_off;
806 extn_data_off += EOBJ_ALIGN_SIZE(extn_data_itr->klass->desc->data_size);
812 klass->extn_data_size = extn_data_off;
815 klass->class_id = ++_eobj_classes_last_id;
817 /* FIXME: Handle errors. */
819 tmp = realloc(_eobj_classes, _eobj_classes_last_id * sizeof(*_eobj_classes));
821 _eobj_classes[klass->class_id - 1] = klass;
824 _eobj_class_base_op_init(klass);
826 /* FIXME: Shouldn't be called here - should be called from eobj_add. */
827 _eobj_class_constructor(klass);
834 eobj_class_free(klass);
837 #undef _CLS_NEW_CHECK
840 eobj_add(const Eobj_Class *klass, Eobj *parent)
842 if (klass->desc->type != EOBJ_CLASS_TYPE_REGULAR)
844 ERR("Class '%s' is not instantiate-able. Aborting.", klass->desc->name);
848 Eobj *obj = calloc(1, sizeof(*obj));
850 obj->parent = parent;
854 obj->data_blob = calloc(1, klass->data_offset + klass->desc->data_size +
855 klass->extn_data_size);
857 _eobj_kls_itr_init(obj, EOBJ_NOOP);
858 eobj_constructor_error_unset(obj);
861 eobj_class_constructor(obj, klass);
863 if (eobj_constructor_error_get(obj))
865 ERR("Type '%s' - One of the object constructors have failed.", klass->desc->name);
869 if (!_eobj_kls_itr_reached_end(obj))
871 ERR("Type '%s' - Not all of the object constructors have been executed.", klass->desc->name);
874 _eobj_kls_itr_end(obj, EOBJ_NOOP);
880 /* Unref twice, once for the ref above, and once for the basic object ref. */
895 eobj_xref_internal(Eobj *obj, const Eobj *ref_obj, const char *file, int line)
900 Eobj_Xref_Node *xref = calloc(1, sizeof(*xref));
901 xref->ref_obj = ref_obj;
905 /* FIXME: Make it sorted. */
906 obj->xrefs = eina_inlist_prepend(obj->xrefs, EINA_INLIST_GET(xref));
917 eobj_xunref(Eobj *obj, const Eobj *ref_obj)
920 Eobj_Xref_Node *xref = NULL;
921 EINA_INLIST_FOREACH(obj->xrefs, xref)
923 if (xref->ref_obj == ref_obj)
929 obj->xrefs = eina_inlist_remove(obj->xrefs, EINA_INLIST_GET(xref));
934 ERR("ref_obj (%p) does not reference obj (%p). Aborting unref.", ref_obj, obj);
951 eobj_unref(Eobj *obj)
953 if (--(obj->refcount) == 0)
955 /* We need that for the event callbacks that may ref/unref. */
960 eobj_event_callback_call(obj, EOBJ_EV_DEL, NULL);
961 obj->delete = EINA_TRUE;
963 eobj_event_callback_call(obj, EOBJ_EV_FREE, NULL);
967 const Eobj_Class *klass = eobj_class_get(obj);
968 _eobj_kls_itr_init(obj, EOBJ_NOOP);
969 eobj_constructor_error_unset(obj);
970 eobj_class_destructor(obj, klass);
971 if (eobj_constructor_error_get(obj))
973 ERR("Type '%s' - One of the object destructors have failed.", klass->desc->name);
976 if (!_eobj_kls_itr_reached_end(obj))
978 ERR("Type '%s' - Not all of the object destructors have been executed.", klass->desc->name);
980 _eobj_kls_itr_end(obj, EOBJ_NOOP);
981 /*FIXME: add eobj_class_unref(klass) ? - just to clear the caches. */
983 /* If for some reason it's not empty, clear it. */
986 WRN("Kls_Itr is not empty, possibly a bug, please report. - An error will be reported for each kls_itr in the stack.");
987 Eina_Inlist *nitr = nitr->next;
988 free(EINA_INLIST_CONTAINER_GET(obj->kls_itr, Eobj_Kls_Itr_Node));
993 /* If for some reason it's not empty, clear it. */
996 WRN("obj->xrefs is not empty, possibly a bug, please report. - An error will be reported for each xref in the stack.");
997 Eina_Inlist *nitr = nitr->next;
998 free(EINA_INLIST_CONTAINER_GET(obj->xrefs, Eobj_Kls_Itr_Node));
1003 Eina_List *itr, *itr_n;
1005 EINA_LIST_FOREACH_SAFE(obj->composite_objects, itr, itr_n, emb_obj)
1007 eobj_composite_object_detach(obj, emb_obj);
1010 _eobj_callback_remove_all(obj);
1013 free(obj->data_blob);
1020 eobj_ref_get(const Eobj *obj)
1022 return obj->refcount;
1025 /* Weak reference. */
1027 _eobj_weak_ref_cb(void *data, Eobj *obj __UNUSED__, const Eobj_Event_Description *desc __UNUSED__, void *event_info __UNUSED__)
1029 Eobj_Weak_Ref *wref = data;
1035 EAPI Eobj_Weak_Ref *
1036 eobj_weak_ref_new(const Eobj *_obj)
1038 Eobj *obj = (Eobj *) _obj;
1039 Eobj_Weak_Ref *wref = calloc(1, sizeof(*wref));
1041 eobj_event_callback_add(obj, EOBJ_EV_DEL, _eobj_weak_ref_cb, wref);
1047 eobj_weak_ref_free(Eobj_Weak_Ref *wref)
1051 eobj_event_callback_del_full(wref->obj, EOBJ_EV_DEL, _eobj_weak_ref_cb,
1057 /* EOF Weak reference. */
1064 eobj_event_callback_call(obj, EOBJ_EV_DEL, NULL);
1065 obj->delete = EINA_TRUE;
1071 eobj_parent_get(Eobj *obj)
1077 eobj_constructor_error_set(Eobj *obj)
1079 obj->construct_error = EINA_TRUE;
1083 eobj_constructor_error_unset(Eobj *obj)
1085 obj->construct_error = EINA_FALSE;
1089 eobj_constructor_error_get(const Eobj *obj)
1091 return obj->construct_error;
1095 _eobj_constructor_default(Eobj *obj)
1097 eobj_constructor_super(obj);
1101 _eobj_destructor_default(Eobj *obj)
1103 eobj_destructor_super(obj);
1107 eobj_class_constructor(Eobj *obj, const Eobj_Class *klass)
1112 if (klass->desc->constructor)
1113 klass->desc->constructor(obj, eobj_data_get(obj, klass));
1115 _eobj_constructor_default(obj);
1119 eobj_class_destructor(Eobj *obj, const Eobj_Class *klass)
1124 if (klass->desc->destructor)
1125 klass->desc->destructor(obj, eobj_data_get(obj, klass));
1127 _eobj_destructor_default(obj);
1131 eobj_constructor_super(Eobj *obj)
1133 eobj_class_constructor(obj, _eobj_kls_itr_next(obj, EOBJ_NOOP));
1137 eobj_destructor_super(Eobj *obj)
1139 eobj_class_destructor(obj, _eobj_kls_itr_next(obj, EOBJ_NOOP));
1143 eobj_data_get(Eobj *obj, const Eobj_Class *klass)
1145 /* FIXME: Add a check that this is of the right klass and we don't seg.
1146 * Probably just return NULL. */
1147 if (klass->desc->data_size > 0)
1149 if (klass->desc->type == EOBJ_CLASS_TYPE_MIXIN)
1151 Eobj_Extension_Data_Offset *doff_itr =
1152 eobj_class_get(obj)->extn_data_off;
1157 while (doff_itr->klass)
1159 if (doff_itr->klass == klass)
1160 return ((char *) obj->data_blob) + doff_itr->offset;
1166 return ((char *) obj->data_blob) + klass->data_offset;
1176 const char *log_dom = "eobj";
1177 if (_eobj_init_count++ > 0)
1182 _eobj_classes = NULL;
1183 _eobj_classes_last_id = 0;
1184 _eobj_log_dom = eina_log_domain_register(log_dom, EINA_COLOR_LIGHTBLUE);
1185 if (_eobj_log_dom < 0)
1187 EINA_LOG_ERR("Could not register log domain: %s", log_dom);
1198 Eobj_Class **cls_itr = _eobj_classes;
1200 if (--_eobj_init_count > 0)
1203 for (i = 0 ; i < _eobj_classes_last_id ; i++, cls_itr++)
1206 eobj_class_free(*cls_itr);
1210 free(_eobj_classes);
1212 eina_log_domain_unregister(_eobj_log_dom);
1220 eobj_composite_object_attach(Eobj *obj, Eobj *emb_obj)
1222 eobj_xref(emb_obj, obj);
1223 obj->composite_objects = eina_list_prepend(obj->composite_objects, emb_obj);
1227 eobj_composite_object_detach(Eobj *obj, Eobj *emb_obj)
1229 obj->composite_objects = eina_list_remove(obj->composite_objects, emb_obj);
1230 eobj_xunref(emb_obj, obj);
1234 eobj_composite_is(Eobj *emb_obj)
1236 Eobj *obj = eobj_parent_get(emb_obj);
1243 EINA_LIST_FOREACH(obj->composite_objects, itr, tmp)
1253 struct _Eobj_Callback_Description
1256 const Eobj_Event_Description *event;
1259 Eobj_Callback_Priority priority;
1260 Eina_Bool delete_me : 1;
1263 /* Actually remove, doesn't care about walking list, or delete_me */
1265 _eobj_callback_remove(Eobj *obj, Eobj_Callback_Description *cb)
1267 obj->callbacks = eina_inlist_remove(obj->callbacks,
1268 EINA_INLIST_GET(cb));
1272 /* Actually remove, doesn't care about walking list, or delete_me */
1274 _eobj_callback_remove_all(Eobj *obj)
1277 Eobj_Callback_Description *cb;
1278 EINA_INLIST_FOREACH_SAFE(obj->callbacks, initr, cb)
1280 _eobj_callback_remove(obj, cb);
1285 _eobj_callbacks_clear(Eobj *obj)
1288 Eobj_Callback_Description *cb;
1290 /* Abort if we are currently walking the list. */
1291 if (obj->walking_list > 0)
1294 EINA_INLIST_FOREACH_SAFE(obj->callbacks, itn, cb)
1298 _eobj_callback_remove(obj, cb);
1304 _callback_priority_cmp(const void *_a, const void *_b)
1306 const Eobj_Callback_Description *a, *b;
1307 a = (const Eobj_Callback_Description *) _a;
1308 b = (const Eobj_Callback_Description *) _b;
1309 if (a->priority < b->priority)
1316 eobj_event_callback_priority_add(Eobj *obj,
1317 const Eobj_Event_Description *desc,
1318 Eobj_Callback_Priority priority,
1322 Eobj_Callback_Description *cb = calloc(1, sizeof(*cb));
1325 cb->func_data = (void *) data;
1326 cb->priority = priority;
1327 obj->callbacks = eina_inlist_sorted_insert(obj->callbacks,
1328 EINA_INLIST_GET(cb), _callback_priority_cmp);
1330 eobj_event_callback_call(obj, EOBJ_EV_CALLBACK_ADD, desc);
1336 eobj_event_callback_del(Eobj *obj, const Eobj_Event_Description *desc, Eobj_Event_Cb func)
1339 Eobj_Callback_Description *cb;
1340 EINA_INLIST_FOREACH(obj->callbacks, cb)
1342 if ((cb->event == desc) && (cb->func == func))
1346 data = cb->func_data;
1347 cb->delete_me = EINA_TRUE;
1348 _eobj_callbacks_clear(obj);
1357 eobj_event_callback_call(obj, EOBJ_EV_CALLBACK_DEL, desc);
1362 eobj_event_callback_del_full(Eobj *obj, const Eobj_Event_Description *desc, Eobj_Event_Cb func, const void *user_data)
1365 Eobj_Callback_Description *cb;
1366 EINA_INLIST_FOREACH(obj->callbacks, cb)
1368 if ((cb->event == desc) && (cb->func == func) &&
1369 (cb->func_data == user_data))
1373 data = cb->func_data;
1374 cb->delete_me = EINA_TRUE;
1375 _eobj_callbacks_clear(obj);
1384 eobj_event_callback_call(obj, EOBJ_EV_CALLBACK_DEL, desc);
1389 eobj_event_callback_call(Eobj *obj, const Eobj_Event_Description *desc,
1390 const void *event_info)
1392 Eina_Bool ret = EINA_TRUE;
1393 Eobj_Callback_Description *cb;
1396 obj->walking_list++;
1398 EINA_INLIST_FOREACH(obj->callbacks, cb)
1400 if (!cb->delete_me && (cb->event == desc))
1402 /* Abort callback calling if the func says so. */
1403 if (!cb->func((void *) cb->func_data, obj, desc,
1404 (void *) event_info))
1413 obj->walking_list--;
1414 _eobj_callbacks_clear(obj);
1421 _eobj_event_forwarder_callback(void *data, Eobj *obj, const Eobj_Event_Description *desc, void *event_info)
1424 Eobj *new_obj = (Eobj *) data;
1425 return eobj_event_callback_call(new_obj, desc, event_info);
1428 /* FIXME: Change default priority? Maybe call later? */
1430 eobj_event_callback_forwarder_add(Eobj *obj, const Eobj_Event_Description *desc, Eobj *new_obj)
1432 return eobj_event_callback_add(obj, desc, _eobj_event_forwarder_callback, new_obj);
1436 eobj_event_callback_forwarder_del(Eobj *obj, const Eobj_Event_Description *desc, Eobj *new_obj)
1438 eobj_event_callback_del_full(obj, desc, _eobj_event_forwarder_callback, new_obj);