forked from enlightenment/efl
1736 lines
44 KiB
C
1736 lines
44 KiB
C
#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#if defined HAVE_DLADDR && ! defined _WIN32
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# include <dlfcn.h>
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#endif
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#include <Eina.h>
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#define EO_BASE_BETA
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#include "Eo.h"
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#include "eo_ptr_indirection.h"
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#include "eo_private.h"
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#include "eo_add_fallback.h"
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#define EO_CLASS_IDS_FIRST 1
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#define EO_OP_IDS_FIRST 1
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/* Used inside the class_get functions of classes, see #EO_DEFINE_CLASS */
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EAPI Eina_Spinlock _eo_class_creation_lock;
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EAPI unsigned int _eo_init_generation = 1;
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int _eo_log_dom = -1;
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static _Eo_Class **_eo_classes = NULL;
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static Eo_Id _eo_classes_last_id = 0;
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static Eo_Id _eo_classes_alloc = 0;
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static int _eo_init_count = 0;
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static Eo_Op _eo_ops_last_id = 0;
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static Eina_Hash *_ops_storage = NULL;
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static Eina_Spinlock _ops_storage_lock;
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static size_t _eo_sz = 0;
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static size_t _eo_class_sz = 0;
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static void _eo_condtor_reset(_Eo_Object *obj);
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static inline void *_eo_data_scope_get(const _Eo_Object *obj, const _Eo_Class *klass);
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static inline void *_eo_data_xref_internal(const char *file, int line, _Eo_Object *obj, const _Eo_Class *klass, const _Eo_Object *ref_obj);
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static inline void _eo_data_xunref_internal(_Eo_Object *obj, void *data, const _Eo_Object *ref_obj);
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/* Start of Dich */
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/* How we search and store the implementations in classes. */
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#define DICH_CHAIN_LAST_BITS 5
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#define DICH_CHAIN_LAST_SIZE (1 << DICH_CHAIN_LAST_BITS)
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#define DICH_CHAIN1(x) ((x) >> DICH_CHAIN_LAST_BITS)
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#define DICH_CHAIN_LAST(x) ((x) & ((1 << DICH_CHAIN_LAST_BITS) - 1))
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/* We are substracting the mask here instead of "AND"ing because it's a hot path,
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* it should be a valid class at this point, and this lets the compiler do 1
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* substraction at compile time. */
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#define _UNMASK_ID(id) ((id) - MASK_CLASS_TAG)
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#define ID_CLASS_GET(id) ({ \
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(_Eo_Class *) (((_UNMASK_ID(id) <= _eo_classes_last_id) && (_UNMASK_ID(id) > 0)) ? \
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(_eo_classes[_UNMASK_ID(id) - 1]) : NULL); \
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})
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static inline void
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_dich_chain_alloc(Dich_Chain1 *chain1)
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{
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if (!chain1->funcs)
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{
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chain1->funcs = calloc(DICH_CHAIN_LAST_SIZE, sizeof(*(chain1->funcs)));
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}
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}
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static inline void
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_dich_copy_all(_Eo_Class *dst, const _Eo_Class *src)
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{
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Eo_Op i;
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const Dich_Chain1 *sc1 = src->chain;
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Dich_Chain1 *dc1 = dst->chain;
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for (i = 0 ; i < src->chain_size ; i++, sc1++, dc1++)
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{
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if (sc1->funcs)
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{
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size_t j;
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_dich_chain_alloc(dc1);
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const op_type_funcs *sf = sc1->funcs;
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op_type_funcs *df = dc1->funcs;
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for (j = 0 ; j < DICH_CHAIN_LAST_SIZE ; j++, df++, sf++)
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{
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if (sf->func)
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{
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memcpy(df, sf, sizeof(*df));
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}
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}
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}
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}
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}
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static inline const op_type_funcs *
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_dich_func_get(const _Eo_Class *klass, Eo_Op op)
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{
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size_t idx1 = DICH_CHAIN1(op);
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if (EINA_UNLIKELY(idx1 >= klass->chain_size))
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return NULL;
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Dich_Chain1 *chain1 = &klass->chain[idx1];
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if (EINA_UNLIKELY(!chain1->funcs))
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return NULL;
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return &chain1->funcs[DICH_CHAIN_LAST(op)];
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}
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/* XXX: Only used for a debug message below. Doesn't matter that it's slow. */
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static const _Eo_Class *
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_eo_op_class_get(Eo_Op op)
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{
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_Eo_Class **itr = _eo_classes;
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int mid, max, min;
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min = 0;
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max = _eo_classes_last_id - 1;
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while (min <= max)
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{
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mid = (min + max) / 2;
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if (itr[mid]->base_id + itr[mid]->desc->ops.count < op)
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min = mid + 1;
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else if (itr[mid]->base_id > op)
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max = mid - 1;
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else
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return itr[mid];
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}
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return NULL;
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}
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static inline Eina_Bool
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_dich_func_set(_Eo_Class *klass, Eo_Op op, eo_op_func_type func)
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{
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op_type_funcs *fsrc;
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size_t idx1 = DICH_CHAIN1(op);
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Dich_Chain1 *chain1 = &klass->chain[idx1];
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_dich_chain_alloc(chain1);
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fsrc = &chain1->funcs[DICH_CHAIN_LAST(op)];
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if (fsrc->src == klass)
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{
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const _Eo_Class *op_kls = _eo_op_class_get(op);
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ERR("Class '%s': Overriding func %p for op %d (%s) with %p.",
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klass->desc->name, fsrc->func, op, op_kls->desc->name, func);
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return EINA_FALSE;
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}
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fsrc->func = func;
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fsrc->src = klass;
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return EINA_TRUE;
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}
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static inline void
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_dich_func_clean_all(_Eo_Class *klass)
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{
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size_t i;
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Dich_Chain1 *chain1 = klass->chain;
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for (i = 0 ; i < klass->chain_size ; i++, chain1++)
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{
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if (chain1->funcs)
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free(chain1->funcs);
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}
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free(klass->chain);
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klass->chain = NULL;
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}
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/* END OF DICH */
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#ifdef HAVE_EO_ID
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# define _EO_ID_GET(Id) ((Eo_Id) (Id))
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#else
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# define _EO_ID_GET(Id) ((Eo_Id) ((Id) ? ((Eo_Header *) (Id))->id : 0))
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#endif
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static inline Eina_Bool
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_eo_is_a_obj(const Eo *eo_id)
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{
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Eo_Id oid = (Eo_Id) _EO_ID_GET(eo_id);
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return !!(oid & MASK_OBJ_TAG);
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}
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static inline Eina_Bool
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_eo_is_a_class(const Eo *eo_id)
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{
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Eo_Id oid = (Eo_Id) _EO_ID_GET(eo_id);
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return !!(oid & MASK_CLASS_TAG);
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}
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static inline _Eo_Class *
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_eo_class_pointer_get(const Eo_Class *klass_id)
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{
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#ifdef HAVE_EO_ID
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return ID_CLASS_GET((Eo_Id)klass_id);
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#else
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return (_Eo_Class *) klass_id;
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#endif
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}
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static const char *
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_eo_op_desc_name_get(const Eo_Op_Description *desc)
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{
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static const char *fct_name = "unknown";
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if (!desc)
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{
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return fct_name;
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}
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#ifndef _WIN32
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# ifdef HAVE_DLADDR
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static Dl_info info;
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if (dladdr(desc->api_func, &info) != 0)
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fct_name = info.dli_sname;
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# endif
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#else
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fct_name = desc->api_func; /* Same on windows */
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#endif
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return fct_name;
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}
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static inline const op_type_funcs *
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_eo_kls_itr_next(const _Eo_Class *orig_kls, const _Eo_Class *cur_klass, Eo_Op op)
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{
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const _Eo_Class **kls_itr = NULL;
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/* Find the kls itr. */
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kls_itr = orig_kls->mro;
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while (*kls_itr && (*kls_itr != cur_klass))
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kls_itr++;
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if (*kls_itr)
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{
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kls_itr++;
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while (*kls_itr)
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{
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const op_type_funcs *fsrc = _dich_func_get(*kls_itr, op);
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if (!fsrc || !fsrc->func)
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{
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kls_itr++;
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continue;
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}
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return fsrc;
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}
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}
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return NULL;
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}
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/************************************ EO ************************************/
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static const Eo_Class *_super_class = NULL;
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static Eina_Spinlock _super_class_lock;
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EAPI Eo *
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eo_super(const Eo *obj, const Eo_Class *cur_klass)
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{
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/* FIXME: Switch to atomic operations intead of lock. */
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eina_spinlock_take(&_super_class_lock);
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_super_class = cur_klass;
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return (Eo *) ((Eo_Id) obj | MASK_SUPER_TAG);
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}
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EAPI Eina_Bool
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_eo_call_resolve(Eo *eo_id, const char *func_name, Eo_Op_Call_Data *call, Eo_Call_Cache *cache, const char *file, int line)
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{
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const _Eo_Class *klass, *inputklass, *main_klass;
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const _Eo_Class *cur_klass = NULL;
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_Eo_Object *obj = NULL;
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const op_type_funcs *func;
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Eina_Bool is_obj;
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if (((Eo_Id) eo_id) & MASK_SUPER_TAG)
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{
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const Eo_Class *tmp = _super_class;
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_super_class = NULL;
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eina_spinlock_release(&_super_class_lock);
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eo_id = (Eo *) ((Eo_Id) eo_id & ~MASK_SUPER_TAG);
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cur_klass = _eo_class_pointer_get(tmp);
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if (!cur_klass)
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{
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ERR("Invalid super class found. Aborting.");
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return EINA_FALSE;
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}
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}
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if (EINA_UNLIKELY(!eo_id))
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return EINA_FALSE;
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call->eo_id = eo_id;
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is_obj = _eo_is_a_obj(eo_id);
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if (is_obj)
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{
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EO_OBJ_POINTER_RETURN_VAL(eo_id, _obj, EINA_FALSE);
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obj = _obj;
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klass = _obj->klass;
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call->obj = obj;
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_eo_ref(_obj);
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}
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else
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{
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EO_CLASS_POINTER_RETURN_VAL(eo_id, _klass, EINA_FALSE);
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klass = _klass;
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call->obj = NULL;
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call->data = NULL;
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}
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inputklass = main_klass = klass;
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if (!cache->op)
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{
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ERR("%s:%d: unable to resolve %s api func '%s' in class '%s'.",
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file, line, (!is_obj ? "class" : "regular"),
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func_name, klass->desc->name);
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return EINA_FALSE;
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}
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/* If we have a current class, we need to itr to the next. */
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if (cur_klass)
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{
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func = _eo_kls_itr_next(klass, cur_klass, cache->op);
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if (!func)
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goto end;
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klass = func->src;
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}
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else
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{
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# if EO_CALL_CACHE_SIZE > 0
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# if EO_CALL_CACHE_SIZE > 1
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int i;
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for (i = 0; i < EO_CALL_CACHE_SIZE; i++)
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# else
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const int i = 0;
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# endif
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{
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if ((const void *)inputklass == cache->index[i].klass)
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{
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func = (const op_type_funcs *)cache->entry[i].func;
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call->func = func->func;
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if (is_obj)
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{
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call->data = (char *) obj + cache->off[i].off;
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}
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return EINA_TRUE;
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}
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}
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#endif
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func = _dich_func_get(klass, cache->op);
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if (!func)
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goto end;
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}
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if (EINA_LIKELY(func->func && func->src))
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{
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call->func = func->func;
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if (is_obj)
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{
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call->data = _eo_data_scope_get(obj, func->src);
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}
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# if EO_CALL_CACHE_SIZE > 0
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if (!cur_klass)
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{
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# if EO_CALL_CACHE_SIZE > 1
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const int slot = cache->next_slot;
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# else
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const int slot = 0;
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# endif
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cache->index[slot].klass = (const void *)inputklass;
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cache->entry[slot].func = (const void *)func;
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cache->off[slot].off = (int)((long)((char *)call->data - (char *)obj));
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# if EO_CALL_CACHE_SIZE > 1
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cache->next_slot = (slot + 1) % EO_CALL_CACHE_SIZE;
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# endif
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}
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#endif
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return EINA_TRUE;
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}
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if (func->src != NULL)
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{
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ERR("in %s:%d: you called a pure virtual func '%s' (%d) of class '%s'.",
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file, line, func_name, cache->op, klass->desc->name);
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return EINA_FALSE;
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}
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end:
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/* Try composite objects */
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if (is_obj)
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{
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Eina_List *itr;
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Eo *emb_obj_id;
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EINA_LIST_FOREACH(obj->composite_objects, itr, emb_obj_id)
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{
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_Eo_Object *emb_obj = _eo_obj_pointer_get((Eo_Id)emb_obj_id);
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if (!emb_obj)
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continue;
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func = _dich_func_get(emb_obj->klass, cache->op);
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if (func == NULL)
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continue;
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if (EINA_LIKELY(func->func && func->src))
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{
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call->eo_id = _eo_id_get(emb_obj);
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call->obj = obj; /* FIXME-eo4: Hack, we retain the previous object so we unref it... */
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call->func = func->func;
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call->data = _eo_data_scope_get(emb_obj, func->src);
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return EINA_TRUE;
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}
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}
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}
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{
|
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/* If it's a do_super call. */
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if (cur_klass)
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{
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ERR("in %s:%d: func '%s' (%d) could not be resolved for class '%s' for super of '%s'.",
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file, line, func_name, cache->op, main_klass->desc->name,
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cur_klass->desc->name);
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}
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else
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{
|
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/* we should not be able to take this branch */
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ERR("in %s:%d: func '%s' (%d) could not be resolved for class '%s'.",
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file, line, func_name, cache->op, main_klass->desc->name);
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}
|
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}
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return EINA_FALSE;
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}
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|
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EAPI void
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_eo_call_end(Eo_Op_Call_Data *call)
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{
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if (EINA_LIKELY(!!call->obj))
|
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{
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_eo_unref(call->obj);
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}
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}
|
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|
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static inline Eina_Bool
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_eo_api_func_equal(const void *api_func1, const void *api_func2)
|
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{
|
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#ifndef _WIN32
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return (api_func1 == api_func2);
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#else
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/* On Windows, DLL API's will be exported using the dllexport flag.
|
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* When used by another library or executable, they will be declared
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* using the dllimport flag. What happens really is that two symbols are
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* created, at two different addresses. So it's impossible to match
|
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* them. We fallback to plain string comparison based on the
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* function name itself. Slow, but this should rarely happen.
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*/
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return (api_func2 && api_func1 && !strcmp(api_func2, api_func1));
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#endif
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}
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|
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/* api_func should be the pointer to the function on all platforms except windows,
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* in which it should be the the name of the function (string).
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*/
|
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static inline const Eo_Op_Description *
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_eo_api_desc_get(const void *api_func, const _Eo_Class *klass, const _Eo_Class **extns)
|
|
{
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const _Eo_Class *cur_klass;
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const _Eo_Class **kls_itr = NULL;
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const Eo_Op_Description *op_desc;
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const Eo_Op_Description *op_descs;
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|
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if (klass)
|
|
{
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for (kls_itr = klass->mro ; *kls_itr ; kls_itr++)
|
|
{
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unsigned int i;
|
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cur_klass = *kls_itr;
|
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op_descs = cur_klass->desc->ops.descs;
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for (i = 0, op_desc = op_descs; i < cur_klass->desc->ops.count; i++, op_desc++)
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{
|
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if (_eo_api_func_equal(op_desc->api_func, api_func))
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{
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return op_desc;
|
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}
|
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}
|
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}
|
|
}
|
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|
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if (extns)
|
|
{
|
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for (kls_itr = extns ; *kls_itr ; kls_itr++)
|
|
{
|
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cur_klass = *kls_itr;
|
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op_desc = _eo_api_desc_get(api_func, cur_klass, NULL);
|
|
if (op_desc) return op_desc;
|
|
}
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
EAPI Eo_Op
|
|
_eo_api_op_id_get(const void *api_func)
|
|
{
|
|
eina_spinlock_take(&_ops_storage_lock);
|
|
#ifndef _WIN32
|
|
Eo_Op op = (uintptr_t) eina_hash_find(_ops_storage, &api_func);
|
|
#else
|
|
Eo_Op op = (uintptr_t) eina_hash_find(_ops_storage, api_func);
|
|
#endif
|
|
eina_spinlock_release(&_ops_storage_lock);
|
|
|
|
if (op == EO_NOOP)
|
|
{
|
|
ERR("Unable to resolve op for api func %p", api_func);
|
|
}
|
|
|
|
return op;
|
|
}
|
|
|
|
static Eina_Bool
|
|
_eo_class_funcs_set(_Eo_Class *klass)
|
|
{
|
|
unsigned int i;
|
|
int op_id;
|
|
const void *last_api_func;
|
|
const Eo_Op_Description *op_desc;
|
|
const Eo_Op_Description *op_descs;
|
|
|
|
op_id = klass->base_id;
|
|
op_descs = klass->desc->ops.descs;
|
|
|
|
DBG("Set functions for class '%s':%p", klass->desc->name, klass);
|
|
|
|
if (!op_descs) return EINA_TRUE;
|
|
|
|
last_api_func = NULL;
|
|
for (i = 0, op_desc = op_descs; i < klass->desc->ops.count; i++, op_desc++)
|
|
{
|
|
Eo_Op op = EO_NOOP;
|
|
|
|
if (op_desc->api_func == NULL)
|
|
{
|
|
ERR("Class '%s': NULL API not allowed (NULL->%p '%s').",
|
|
klass->desc->name, op_desc->func, _eo_op_desc_name_get(op_desc));
|
|
return EINA_FALSE;
|
|
}
|
|
|
|
if ((op_desc->op_type == EO_OP_TYPE_REGULAR) || (op_desc->op_type == EO_OP_TYPE_CLASS))
|
|
{
|
|
if (_eo_api_func_equal(op_desc->api_func, last_api_func))
|
|
{
|
|
ERR("Class '%s': API previously defined (%p->%p '%s').",
|
|
klass->desc->name, op_desc->api_func, op_desc->func, _eo_op_desc_name_get(op_desc));
|
|
return EINA_FALSE;
|
|
}
|
|
|
|
op = op_id;
|
|
eina_spinlock_take(&_ops_storage_lock);
|
|
#ifndef _WIN32
|
|
eina_hash_add(_ops_storage, &op_desc->api_func, (void *) (uintptr_t) op);
|
|
#else
|
|
eina_hash_add(_ops_storage, op_desc->api_func, (void *) (uintptr_t) op);
|
|
#endif
|
|
eina_spinlock_release(&_ops_storage_lock);
|
|
|
|
op_id++;
|
|
}
|
|
else if ((op_desc->op_type == EO_OP_TYPE_REGULAR_OVERRIDE) || (op_desc->op_type == EO_OP_TYPE_CLASS_OVERRIDE))
|
|
{
|
|
const Eo_Op_Description *api_desc;
|
|
api_desc = _eo_api_desc_get(op_desc->api_func, klass->parent, klass->extensions);
|
|
|
|
if (api_desc == NULL)
|
|
{
|
|
ERR("Class '%s': Can't find api func description in class hierarchy (%p->%p) (%s).",
|
|
klass->desc->name, op_desc->api_func, op_desc->func, _eo_op_desc_name_get(op_desc));
|
|
return EINA_FALSE;
|
|
}
|
|
|
|
op = _eo_api_op_id_get(op_desc->api_func);
|
|
}
|
|
|
|
if (op == EO_NOOP)
|
|
{
|
|
ERR("Class '%s': Invalid op 'EO_NOOP' (%p->%p '%s').",
|
|
klass->desc->name, op_desc->api_func, op_desc->func, _eo_op_desc_name_get(op_desc));
|
|
return EINA_FALSE;
|
|
}
|
|
|
|
DBG("%p->%p '%s'", op_desc->api_func, op_desc->func, _eo_op_desc_name_get(op_desc));
|
|
|
|
if (!_dich_func_set(klass, op, op_desc->func))
|
|
return EINA_FALSE;
|
|
|
|
last_api_func = op_desc->api_func;
|
|
}
|
|
|
|
return EINA_TRUE;
|
|
}
|
|
|
|
EAPI Eo *
|
|
_eo_add_internal_start(const char *file, int line, const Eo_Class *klass_id, Eo *parent_id, Eina_Bool ref, Eina_Bool is_fallback)
|
|
{
|
|
_Eo_Object *obj;
|
|
Eo_Stack_Frame *fptr = NULL;
|
|
|
|
if (is_fallback)
|
|
{
|
|
fptr = _eo_add_fallback_stack_push(NULL);
|
|
}
|
|
|
|
EO_CLASS_POINTER_RETURN_VAL(klass_id, klass, NULL);
|
|
|
|
if (parent_id)
|
|
{
|
|
EO_OBJ_POINTER_RETURN_VAL(parent_id, parent, NULL);
|
|
}
|
|
|
|
if (EINA_UNLIKELY(klass->desc->type != EO_CLASS_TYPE_REGULAR))
|
|
{
|
|
ERR("in %s:%d: Class '%s' is not instantiate-able. Aborting.", file, line, klass->desc->name);
|
|
return NULL;
|
|
}
|
|
|
|
eina_spinlock_take(&klass->objects.trash_lock);
|
|
obj = eina_trash_pop(&klass->objects.trash);
|
|
if (obj)
|
|
{
|
|
memset(obj, 0, klass->obj_size);
|
|
klass->objects.trash_count--;
|
|
}
|
|
else
|
|
{
|
|
obj = calloc(1, klass->obj_size);
|
|
}
|
|
eina_spinlock_release(&klass->objects.trash_lock);
|
|
|
|
obj->refcount++;
|
|
obj->klass = klass;
|
|
|
|
#ifndef HAVE_EO_ID
|
|
EINA_MAGIC_SET((Eo_Header *) obj, EO_EINA_MAGIC);
|
|
#endif
|
|
obj->header.id = _eo_id_allocate(obj);
|
|
Eo *eo_id = _eo_id_get(obj);
|
|
|
|
_eo_condtor_reset(obj);
|
|
|
|
_eo_ref(obj);
|
|
|
|
eo_parent_set(eo_id, parent_id);
|
|
|
|
/* If there's a parent. Ref. Eo_add should return an object with either a
|
|
* parent ref, or with the lack of, just a ref. */
|
|
{
|
|
if (ref && eo_parent_get(eo_id))
|
|
{
|
|
_eo_ref(obj);
|
|
}
|
|
}
|
|
|
|
/* eo_id can change here. Freeing is done on the resolved object. */
|
|
eo_id = eo_constructor(eo_id);
|
|
if (!eo_id)
|
|
{
|
|
ERR("Object of class '%s' - Error while constructing object",
|
|
klass->desc->name);
|
|
_eo_unref(obj);
|
|
eo_del((Eo *) obj->header.id);
|
|
return NULL;
|
|
}
|
|
|
|
if (is_fallback)
|
|
{
|
|
fptr->obj = eo_id;
|
|
}
|
|
|
|
return eo_id;
|
|
}
|
|
|
|
static Eo *
|
|
_eo_add_internal_end(Eo *eo_id, Eo *finalized_id)
|
|
{
|
|
EO_OBJ_POINTER_RETURN_VAL(eo_id, obj, NULL);
|
|
|
|
if (!obj->condtor_done)
|
|
{
|
|
const _Eo_Class *klass = obj->klass;
|
|
|
|
ERR("Object of class '%s' - Not all of the object constructors have been executed.",
|
|
klass->desc->name);
|
|
goto cleanup;
|
|
}
|
|
|
|
if (!finalized_id)
|
|
{
|
|
// XXX: Given EFL usage of objects, construction is a perfectly valid thing
|
|
// to do. we shouldn't complain about it as handling a NULL obj creation is
|
|
// the job of the caller. a perfect example here is ecore_con and ecore_ipc
|
|
// where you create a con or ipc obj then set up type/destination/port and
|
|
// the finalize of the constructor does the actual connect and thus this
|
|
// fails or succeeds based on if service is there.
|
|
//
|
|
// until there is a better solution - don't complain here.
|
|
//
|
|
// ERR("Object of class '%s' - Finalizing the object failed.",
|
|
// klass->desc->name);
|
|
goto cleanup;
|
|
}
|
|
|
|
obj->finalized = EINA_TRUE;
|
|
|
|
_eo_unref(obj);
|
|
|
|
return (Eo *)eo_id;
|
|
|
|
cleanup:
|
|
_eo_unref(obj);
|
|
eo_del((Eo *) obj->header.id);
|
|
return NULL;
|
|
}
|
|
|
|
EAPI Eo *
|
|
_eo_add_end(Eo *eo_id, Eina_Bool is_fallback)
|
|
{
|
|
Eo *ret = eo_finalize(eo_id);
|
|
ret = _eo_add_internal_end(eo_id, ret);
|
|
|
|
if (is_fallback)
|
|
{
|
|
_eo_add_fallback_stack_pop();
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/*****************************************************************************/
|
|
|
|
EAPI const Eo_Class *
|
|
eo_class_get(const Eo *eo_id)
|
|
{
|
|
if (_eo_is_a_class(eo_id))
|
|
{
|
|
EO_CLASS_POINTER_RETURN_VAL(eo_id, _klass, NULL);
|
|
return EO_CLASS_CLASS;
|
|
}
|
|
|
|
EO_OBJ_POINTER_RETURN_VAL(eo_id, obj, NULL);
|
|
|
|
return _eo_class_id_get(obj->klass);
|
|
}
|
|
|
|
EAPI const char *
|
|
eo_class_name_get(const Eo_Class *eo_id)
|
|
{
|
|
const _Eo_Class *klass;
|
|
|
|
if (_eo_is_a_class(eo_id))
|
|
{
|
|
EO_CLASS_POINTER_RETURN_VAL(eo_id, _klass, NULL);
|
|
klass = _klass;
|
|
}
|
|
else
|
|
{
|
|
EO_OBJ_POINTER_RETURN_VAL(eo_id, obj, NULL);
|
|
klass = obj->klass;
|
|
}
|
|
|
|
return klass->desc->name;
|
|
}
|
|
|
|
static void
|
|
_eo_class_base_op_init(_Eo_Class *klass)
|
|
{
|
|
const Eo_Class_Description *desc = klass->desc;
|
|
|
|
klass->base_id = _eo_ops_last_id;
|
|
|
|
_eo_ops_last_id += desc->ops.count + 1;
|
|
|
|
klass->chain_size = DICH_CHAIN1(_eo_ops_last_id) + 1;
|
|
klass->chain = calloc(klass->chain_size, sizeof(*klass->chain));
|
|
}
|
|
|
|
#ifdef EO_DEBUG
|
|
static Eina_Bool
|
|
_eo_class_mro_has(const _Eo_Class *klass, const _Eo_Class *find)
|
|
{
|
|
const _Eo_Class **itr;
|
|
for (itr = klass->mro ; *itr ; itr++)
|
|
{
|
|
if (*itr == find)
|
|
{
|
|
return EINA_TRUE;
|
|
}
|
|
}
|
|
return EINA_FALSE;
|
|
}
|
|
#endif
|
|
|
|
static Eina_List *
|
|
_eo_class_list_remove_duplicates(Eina_List* list)
|
|
{
|
|
Eina_List *itr1, *itr2, *itr2n;
|
|
|
|
itr1 = eina_list_last(list);
|
|
while (itr1)
|
|
{
|
|
itr2 = eina_list_prev(itr1);
|
|
|
|
while (itr2)
|
|
{
|
|
itr2n = eina_list_prev(itr2);
|
|
|
|
if (eina_list_data_get(itr1) == eina_list_data_get(itr2))
|
|
{
|
|
list = eina_list_remove_list(list, itr2);
|
|
}
|
|
|
|
itr2 = itr2n;
|
|
}
|
|
|
|
itr1 = eina_list_prev(itr1);
|
|
}
|
|
|
|
return list;
|
|
}
|
|
|
|
static Eina_List *
|
|
_eo_class_mro_add(Eina_List *mro, const _Eo_Class *klass)
|
|
{
|
|
if (!klass)
|
|
return mro;
|
|
|
|
mro = eina_list_append(mro, klass);
|
|
|
|
/* Recursively add MIXINS extensions. */
|
|
{
|
|
const _Eo_Class **extn_itr;
|
|
|
|
for (extn_itr = klass->extensions ; *extn_itr ; extn_itr++)
|
|
{
|
|
const _Eo_Class *extn = *extn_itr;
|
|
if (extn->desc->type == EO_CLASS_TYPE_MIXIN)
|
|
mro = _eo_class_mro_add(mro, extn);
|
|
}
|
|
}
|
|
|
|
mro = _eo_class_mro_add(mro, klass->parent);
|
|
|
|
return mro;
|
|
}
|
|
|
|
static Eina_List *
|
|
_eo_class_mro_init(const Eo_Class_Description *desc, const _Eo_Class *parent, Eina_List *extensions)
|
|
{
|
|
Eina_List *mro = NULL;
|
|
Eina_List *extn_itr = NULL;
|
|
Eina_List *extn_pos = NULL;
|
|
const _Eo_Class *extn = NULL;
|
|
|
|
/* Add MIXINS extensions. */
|
|
EINA_LIST_FOREACH(extensions, extn_itr, extn)
|
|
{
|
|
if (extn->desc->type != EO_CLASS_TYPE_MIXIN)
|
|
continue;
|
|
|
|
mro = _eo_class_mro_add(mro, extn);
|
|
extn_pos = eina_list_append(extn_pos, eina_list_last(mro));
|
|
}
|
|
|
|
/* Check if we can create a consistent mro */
|
|
{
|
|
Eina_List *itr = extn_pos;
|
|
EINA_LIST_FOREACH(extensions, extn_itr, extn)
|
|
{
|
|
if (extn->desc->type != EO_CLASS_TYPE_MIXIN)
|
|
continue;
|
|
|
|
/* Get the first one after the extension. */
|
|
Eina_List *extn_list = eina_list_next(eina_list_data_get(itr));
|
|
|
|
/* If we found the extension again. */
|
|
if (eina_list_data_find_list(extn_list, extn))
|
|
{
|
|
eina_list_free(mro);
|
|
eina_list_free(extn_pos);
|
|
ERR("Cannot create a consistent method resolution order for class '%s' because of '%s'.", desc->name, extn->desc->name);
|
|
return NULL;
|
|
}
|
|
|
|
itr = eina_list_next(itr);
|
|
}
|
|
}
|
|
|
|
eina_list_free(extn_pos);
|
|
|
|
mro = _eo_class_mro_add(mro, parent);
|
|
mro = _eo_class_list_remove_duplicates(mro);
|
|
/* Will be replaced with the actual class pointer */
|
|
mro = eina_list_prepend(mro, NULL);
|
|
|
|
return mro;
|
|
}
|
|
|
|
static void
|
|
_eo_class_constructor(_Eo_Class *klass)
|
|
{
|
|
klass->constructed = EINA_TRUE;
|
|
|
|
if (klass->desc->class_constructor)
|
|
klass->desc->class_constructor(_eo_class_id_get(klass));
|
|
}
|
|
|
|
static void
|
|
eo_class_free(_Eo_Class *klass)
|
|
{
|
|
void *data;
|
|
|
|
if (klass->constructed)
|
|
{
|
|
if (klass->desc->class_destructor)
|
|
klass->desc->class_destructor(_eo_class_id_get(klass));
|
|
|
|
_dich_func_clean_all(klass);
|
|
}
|
|
|
|
EINA_TRASH_CLEAN(&klass->objects.trash, data)
|
|
free(data);
|
|
|
|
EINA_TRASH_CLEAN(&klass->iterators.trash, data)
|
|
free(data);
|
|
|
|
eina_spinlock_free(&klass->objects.trash_lock);
|
|
eina_spinlock_free(&klass->iterators.trash_lock);
|
|
|
|
free(klass);
|
|
}
|
|
|
|
/* Not really called, just used for the ptr... */
|
|
static void
|
|
_eo_class_isa_func(Eo *eo_id EINA_UNUSED, void *class_data EINA_UNUSED, va_list *list EINA_UNUSED)
|
|
{
|
|
/* Do nonthing. */
|
|
}
|
|
|
|
static inline void
|
|
_eo_classes_release(void)
|
|
{
|
|
#ifdef HAVE_MMAP
|
|
size_t size;
|
|
|
|
size = _eo_classes_alloc * sizeof(_Eo_Class *);
|
|
if (_eo_classes) munmap(_eo_classes, size);
|
|
#else
|
|
free(_eo_classes);
|
|
#endif
|
|
_eo_classes = NULL;
|
|
_eo_classes_last_id = 0;
|
|
_eo_classes_alloc = 0;
|
|
}
|
|
|
|
static inline void
|
|
_eo_classes_expand(void)
|
|
{
|
|
unsigned char *ptr;
|
|
size_t newsize, psize;
|
|
|
|
_eo_classes_last_id++;
|
|
if (_eo_classes_last_id <= _eo_classes_alloc) return;
|
|
psize = _eo_classes_alloc * sizeof(_Eo_Class *);
|
|
#ifdef HAVE_MMAP
|
|
_eo_classes_alloc += (MEM_PAGE_SIZE / sizeof(_Eo_Class *));
|
|
newsize = _eo_classes_alloc * sizeof(_Eo_Class *);
|
|
ptr = mmap(NULL, newsize, PROT_READ | PROT_WRITE,
|
|
MAP_PRIVATE | MAP_ANON, -1, 0);
|
|
if (ptr == MAP_FAILED)
|
|
{
|
|
ERR("mmap of eo class table region failed!");
|
|
abort();
|
|
}
|
|
if (psize > 0) memcpy(ptr, _eo_classes, psize);
|
|
if (_eo_classes) munmap(_eo_classes, psize);
|
|
#else
|
|
_eo_classes_alloc += 128;
|
|
newsize = _eo_classes_alloc * sizeof(_Eo_Class *);
|
|
ptr = realloc(_eo_classes, newsize);
|
|
if (!ptr)
|
|
{
|
|
ERR("realloc of eo class table region faile!!");
|
|
abort();
|
|
}
|
|
#endif
|
|
memset(ptr + psize, 0, newsize - psize);
|
|
_eo_classes = (_Eo_Class **)ptr;
|
|
}
|
|
|
|
EAPI const Eo_Class *
|
|
eo_class_new(const Eo_Class_Description *desc, const Eo_Class *parent_id, ...)
|
|
{
|
|
_Eo_Class *klass;
|
|
va_list p_list;
|
|
size_t extn_sz, mro_sz, mixins_sz;
|
|
Eina_List *extn_list, *mro, *mixins;
|
|
|
|
EINA_SAFETY_ON_NULL_RETURN_VAL(desc, NULL);
|
|
EINA_SAFETY_ON_NULL_RETURN_VAL(desc->name, NULL);
|
|
|
|
_Eo_Class *parent = _eo_class_pointer_get(parent_id);
|
|
#ifndef HAVE_EO_ID
|
|
if (parent && !EINA_MAGIC_CHECK((Eo_Header *) parent, EO_CLASS_EINA_MAGIC))
|
|
{
|
|
EINA_MAGIC_FAIL((Eo_Header *) parent, EO_CLASS_EINA_MAGIC);
|
|
return NULL;
|
|
}
|
|
#endif
|
|
|
|
/* Check restrictions on Interface types. */
|
|
if (desc->type == EO_CLASS_TYPE_INTERFACE)
|
|
{
|
|
EINA_SAFETY_ON_FALSE_RETURN_VAL(!desc->data_size, NULL);
|
|
}
|
|
|
|
/* Check parent */
|
|
if (parent)
|
|
{
|
|
/* Verify the inheritance is allowed. */
|
|
switch (desc->type)
|
|
{
|
|
case EO_CLASS_TYPE_REGULAR:
|
|
case EO_CLASS_TYPE_REGULAR_NO_INSTANT:
|
|
if ((parent->desc->type != EO_CLASS_TYPE_REGULAR) &&
|
|
(parent->desc->type != EO_CLASS_TYPE_REGULAR_NO_INSTANT))
|
|
{
|
|
ERR("Regular classes ('%s') aren't allowed to inherit from non-regular classes ('%s').",
|
|
desc->name, parent->desc->name);
|
|
return NULL;
|
|
}
|
|
break;
|
|
case EO_CLASS_TYPE_INTERFACE:
|
|
case EO_CLASS_TYPE_MIXIN:
|
|
if ((parent->desc->type != EO_CLASS_TYPE_INTERFACE) &&
|
|
(parent->desc->type != EO_CLASS_TYPE_MIXIN))
|
|
{
|
|
ERR("Non-regular classes ('%s') aren't allowed to inherit from regular classes ('%s').",
|
|
desc->name, parent->desc->name);
|
|
return NULL;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Build class extensions list */
|
|
{
|
|
DBG("Started building extensions list for class '%s'", desc->name);
|
|
extn_list = NULL;
|
|
const _Eo_Class *extn = NULL;
|
|
const Eo_Id *extn_id = NULL;
|
|
|
|
va_start(p_list, parent_id);
|
|
|
|
extn_id = va_arg(p_list, Eo_Id *);
|
|
while (extn_id)
|
|
{
|
|
extn = _eo_class_pointer_get((Eo_Class *)extn_id);
|
|
switch (extn->desc->type)
|
|
{
|
|
case EO_CLASS_TYPE_REGULAR_NO_INSTANT:
|
|
case EO_CLASS_TYPE_REGULAR:
|
|
case EO_CLASS_TYPE_INTERFACE:
|
|
case EO_CLASS_TYPE_MIXIN:
|
|
extn_list = eina_list_append(extn_list, extn);
|
|
break;
|
|
}
|
|
|
|
extn_id = va_arg(p_list, Eo_Id *);
|
|
}
|
|
|
|
va_end(p_list);
|
|
|
|
extn_list = _eo_class_list_remove_duplicates(extn_list);
|
|
|
|
extn_sz = sizeof(_Eo_Class *) * (eina_list_count(extn_list) + 1);
|
|
|
|
DBG("Finished building extensions list for class '%s'", desc->name);
|
|
}
|
|
|
|
/* Prepare mro list */
|
|
{
|
|
DBG("Started building MRO list for class '%s'", desc->name);
|
|
|
|
mro = _eo_class_mro_init(desc, parent, extn_list);
|
|
if (!mro)
|
|
{
|
|
eina_list_free(extn_list);
|
|
return NULL;
|
|
}
|
|
|
|
mro_sz = sizeof(_Eo_Class *) * (eina_list_count(mro) + 1);
|
|
|
|
DBG("Finished building MRO list for class '%s'", desc->name);
|
|
}
|
|
|
|
/* Prepare mixins list */
|
|
{
|
|
Eina_List *itr;
|
|
const _Eo_Class *kls_itr;
|
|
|
|
DBG("Started building Mixins list for class '%s'", desc->name);
|
|
|
|
mixins = NULL;
|
|
EINA_LIST_FOREACH(mro, itr, kls_itr)
|
|
{
|
|
if ((kls_itr) && (kls_itr->desc->type == EO_CLASS_TYPE_MIXIN) &&
|
|
(kls_itr->desc->data_size > 0))
|
|
mixins = eina_list_append(mixins, kls_itr);
|
|
}
|
|
|
|
mixins_sz = sizeof(Eo_Extension_Data_Offset) * (eina_list_count(mixins) + 1);
|
|
if ((desc->type == EO_CLASS_TYPE_MIXIN) && (desc->data_size > 0))
|
|
mixins_sz += sizeof(Eo_Extension_Data_Offset);
|
|
|
|
DBG("Finished building Mixins list for class '%s'", desc->name);
|
|
}
|
|
|
|
klass = calloc(1, _eo_class_sz + extn_sz + mro_sz + mixins_sz);
|
|
#ifndef HAVE_EO_ID
|
|
EINA_MAGIC_SET((Eo_Header *) klass, EO_CLASS_EINA_MAGIC);
|
|
#endif
|
|
eina_spinlock_new(&klass->objects.trash_lock);
|
|
eina_spinlock_new(&klass->iterators.trash_lock);
|
|
klass->parent = parent;
|
|
klass->desc = desc;
|
|
klass->extensions = (const _Eo_Class **) ((char *) klass + _eo_class_sz);
|
|
klass->mro = (const _Eo_Class **) ((char *) klass->extensions + extn_sz);
|
|
klass->extn_data_off = (Eo_Extension_Data_Offset *) ((char *) klass->mro + mro_sz);
|
|
if (klass->parent)
|
|
{
|
|
/* FIXME: Make sure this alignment is enough. */
|
|
klass->data_offset = klass->parent->data_offset +
|
|
EO_ALIGN_SIZE(klass->parent->desc->data_size);
|
|
}
|
|
else
|
|
{
|
|
/* Data starts after the object size. */
|
|
klass->data_offset = _eo_sz;
|
|
}
|
|
|
|
mro = eina_list_remove(mro, NULL);
|
|
mro = eina_list_prepend(mro, klass);
|
|
if ((desc->type == EO_CLASS_TYPE_MIXIN) && (desc->data_size > 0))
|
|
mixins = eina_list_prepend(mixins, klass);
|
|
|
|
/* Copy the extensions and free the list */
|
|
{
|
|
const _Eo_Class *extn = NULL;
|
|
const _Eo_Class **extn_itr = klass->extensions;
|
|
EINA_LIST_FREE(extn_list, extn)
|
|
{
|
|
*(extn_itr++) = extn;
|
|
|
|
DBG("Added '%s' extension", extn->desc->name);
|
|
}
|
|
*(extn_itr) = NULL;
|
|
}
|
|
|
|
/* Copy the mro and free the list. */
|
|
{
|
|
const _Eo_Class *kls_itr = NULL;
|
|
const _Eo_Class **mro_itr = klass->mro;
|
|
EINA_LIST_FREE(mro, kls_itr)
|
|
{
|
|
*(mro_itr++) = kls_itr;
|
|
|
|
DBG("Added '%s' to MRO", kls_itr->desc->name);
|
|
}
|
|
*(mro_itr) = NULL;
|
|
}
|
|
|
|
size_t extn_data_off = klass->data_offset;
|
|
if (klass->desc->type != EO_CLASS_TYPE_MIXIN)
|
|
extn_data_off += EO_ALIGN_SIZE(klass->desc->data_size);
|
|
|
|
/* Feed the mixins data offsets and free the mixins list. */
|
|
{
|
|
const _Eo_Class *kls_itr = NULL;
|
|
Eo_Extension_Data_Offset *extn_data_itr = klass->extn_data_off;
|
|
EINA_LIST_FREE(mixins, kls_itr)
|
|
{
|
|
extn_data_itr->klass = kls_itr;
|
|
extn_data_itr->offset = extn_data_off;
|
|
|
|
extn_data_off += EO_ALIGN_SIZE(extn_data_itr->klass->desc->data_size);
|
|
extn_data_itr++;
|
|
|
|
DBG("Added '%s' to Data Offset info", kls_itr->desc->name);
|
|
}
|
|
extn_data_itr->klass = 0;
|
|
extn_data_itr->offset = 0;
|
|
}
|
|
|
|
klass->obj_size = extn_data_off;
|
|
if (getenv("EO_DEBUG"))
|
|
{
|
|
fprintf(stderr, "Eo class '%s' will take %u bytes per object.\n",
|
|
desc->name, klass->obj_size);
|
|
}
|
|
|
|
_eo_class_base_op_init(klass);
|
|
|
|
/* Flatten the function array */
|
|
{
|
|
const _Eo_Class **mro_itr = klass->mro;
|
|
for ( ; *mro_itr ; mro_itr++)
|
|
;
|
|
|
|
/* Skip ourselves. */
|
|
for ( mro_itr-- ; mro_itr > klass->mro ; mro_itr--)
|
|
{
|
|
_dich_copy_all(klass, *mro_itr);
|
|
}
|
|
}
|
|
|
|
/* Mark which classes we implement */
|
|
{
|
|
const _Eo_Class **extn_itr;
|
|
|
|
for (extn_itr = klass->extensions ; *extn_itr ; extn_itr++)
|
|
{
|
|
const _Eo_Class *extn = *extn_itr;
|
|
/* Set it in the dich. */
|
|
_dich_func_set(klass, extn->base_id +
|
|
extn->desc->ops.count, _eo_class_isa_func);
|
|
}
|
|
|
|
_dich_func_set(klass, klass->base_id + klass->desc->ops.count,
|
|
_eo_class_isa_func);
|
|
|
|
if (klass->parent)
|
|
{
|
|
_dich_func_set(klass,
|
|
klass->parent->base_id + klass->parent->desc->ops.count,
|
|
_eo_class_isa_func);
|
|
}
|
|
}
|
|
|
|
if (!_eo_class_funcs_set(klass))
|
|
{
|
|
eina_spinlock_free(&klass->objects.trash_lock);
|
|
eina_spinlock_free(&klass->iterators.trash_lock);
|
|
_dich_func_clean_all(klass);
|
|
free(klass);
|
|
return NULL;
|
|
}
|
|
|
|
{
|
|
Eo_Id new_id;
|
|
|
|
eina_spinlock_take(&_eo_class_creation_lock);
|
|
new_id = (_eo_classes_last_id + 1) | MASK_CLASS_TAG;
|
|
_eo_classes_expand();
|
|
_eo_classes[_UNMASK_ID(new_id) - 1] = klass;
|
|
eina_spinlock_release(&_eo_class_creation_lock);
|
|
|
|
klass->header.id = new_id;
|
|
}
|
|
|
|
_eo_class_constructor(klass);
|
|
|
|
DBG("Finished building class '%s'", klass->desc->name);
|
|
|
|
return _eo_class_id_get(klass);
|
|
}
|
|
|
|
EAPI Eina_Bool
|
|
eo_isa(const Eo *eo_id, const Eo_Class *klass_id)
|
|
{
|
|
EO_OBJ_POINTER_RETURN_VAL(eo_id, obj, EINA_FALSE);
|
|
EO_CLASS_POINTER_RETURN_VAL(klass_id, klass, EINA_FALSE);
|
|
const op_type_funcs *func = _dich_func_get(obj->klass,
|
|
klass->base_id + klass->desc->ops.count);
|
|
|
|
/* Currently implemented by reusing the LAST op id. Just marking it with
|
|
* _eo_class_isa_func. */
|
|
return (func && (func->func == _eo_class_isa_func));
|
|
}
|
|
|
|
EAPI Eo *
|
|
eo_xref_internal(const char *file, int line, Eo *obj_id, const Eo *ref_obj_id)
|
|
{
|
|
EO_OBJ_POINTER_RETURN_VAL(obj_id, obj, obj_id);
|
|
|
|
_eo_ref(obj);
|
|
|
|
#ifdef EO_DEBUG
|
|
Eo_Xref_Node *xref = calloc(1, sizeof(*xref));
|
|
xref->ref_obj = ref_obj_id;
|
|
xref->file = file;
|
|
xref->line = line;
|
|
|
|
obj->xrefs = eina_inlist_prepend(obj->xrefs, EINA_INLIST_GET(xref));
|
|
#else
|
|
(void) ref_obj_id;
|
|
(void) file;
|
|
(void) line;
|
|
#endif
|
|
|
|
return obj_id;
|
|
}
|
|
|
|
EAPI void
|
|
eo_xunref(Eo *obj_id, const Eo *ref_obj_id)
|
|
{
|
|
EO_OBJ_POINTER_RETURN(obj_id, obj);
|
|
#ifdef EO_DEBUG
|
|
Eo_Xref_Node *xref = NULL;
|
|
EINA_INLIST_FOREACH(obj->xrefs, xref)
|
|
{
|
|
if (xref->ref_obj == ref_obj_id)
|
|
break;
|
|
}
|
|
|
|
if (xref)
|
|
{
|
|
obj->xrefs = eina_inlist_remove(obj->xrefs, EINA_INLIST_GET(xref));
|
|
free(xref);
|
|
}
|
|
else
|
|
{
|
|
ERR("ref_obj (%p) does not reference obj (%p). Aborting unref.", ref_obj_id, obj_id);
|
|
return;
|
|
}
|
|
#else
|
|
(void) ref_obj_id;
|
|
#endif
|
|
_eo_unref(obj);
|
|
}
|
|
|
|
EAPI Eo *
|
|
eo_ref(const Eo *obj_id)
|
|
{
|
|
EO_OBJ_POINTER_RETURN_VAL(obj_id, obj, (Eo *)obj_id);
|
|
|
|
_eo_ref(obj);
|
|
return (Eo *)obj_id;
|
|
}
|
|
|
|
EAPI void
|
|
eo_unref(const Eo *obj_id)
|
|
{
|
|
EO_OBJ_POINTER_RETURN(obj_id, obj);
|
|
|
|
_eo_unref(obj);
|
|
}
|
|
|
|
EAPI int
|
|
eo_ref_get(const Eo *obj_id)
|
|
{
|
|
EO_OBJ_POINTER_RETURN_VAL(obj_id, obj, 0);
|
|
|
|
return obj->refcount;
|
|
}
|
|
|
|
EAPI void
|
|
eo_del_intercept_set(Eo *obj_id, Eo_Del_Intercept del_intercept_func)
|
|
{
|
|
EO_OBJ_POINTER_RETURN(obj_id, obj);
|
|
|
|
obj->del_intercept = del_intercept_func;
|
|
}
|
|
|
|
EAPI Eo_Del_Intercept
|
|
eo_del_intercept_get(const Eo *obj_id)
|
|
{
|
|
EO_OBJ_POINTER_RETURN_VAL(obj_id, obj, NULL);
|
|
|
|
return obj->del_intercept;
|
|
}
|
|
|
|
void
|
|
_eo_condtor_done(Eo *obj_id)
|
|
{
|
|
EO_OBJ_POINTER_RETURN(obj_id, obj);
|
|
if (obj->condtor_done)
|
|
{
|
|
ERR("Object %p is already constructed at this point.", obj);
|
|
return;
|
|
}
|
|
|
|
obj->condtor_done = EINA_TRUE;
|
|
}
|
|
|
|
static inline void *
|
|
_eo_data_scope_safe_get(const _Eo_Object *obj, const _Eo_Class *klass)
|
|
{
|
|
if (EINA_LIKELY(klass->desc->data_size > 0))
|
|
{
|
|
return _eo_data_scope_get(obj, klass);
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static inline void *
|
|
_eo_data_scope_get(const _Eo_Object *obj, const _Eo_Class *klass)
|
|
{
|
|
if (EINA_LIKELY(klass->desc->type != EO_CLASS_TYPE_MIXIN))
|
|
return ((char *) obj) + klass->data_offset;
|
|
|
|
if (EINA_UNLIKELY(klass->desc->data_size == 0))
|
|
{
|
|
return NULL;
|
|
}
|
|
else
|
|
{
|
|
Eo_Extension_Data_Offset *doff_itr = obj->klass->extn_data_off;
|
|
|
|
if (!doff_itr)
|
|
return NULL;
|
|
|
|
while (doff_itr->klass)
|
|
{
|
|
if (doff_itr->klass == klass)
|
|
return ((char *) obj) + doff_itr->offset;
|
|
doff_itr++;
|
|
}
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static inline void *
|
|
_eo_data_xref_internal(const char *file, int line, _Eo_Object *obj, const _Eo_Class *klass, const _Eo_Object *ref_obj)
|
|
{
|
|
void *data = NULL;
|
|
if (klass != NULL)
|
|
{
|
|
data = _eo_data_scope_safe_get(obj, klass);
|
|
if (data == NULL) return NULL;
|
|
}
|
|
(obj->datarefcount)++;
|
|
#ifdef EO_DEBUG
|
|
Eo_Xref_Node *xref = calloc(1, sizeof(*xref));
|
|
xref->ref_obj = _eo_id_get(ref_obj);
|
|
xref->file = file;
|
|
xref->line = line;
|
|
|
|
obj->data_xrefs = eina_inlist_prepend(obj->data_xrefs, EINA_INLIST_GET(xref));
|
|
#else
|
|
(void) ref_obj;
|
|
(void) file;
|
|
(void) line;
|
|
#endif
|
|
return data;
|
|
}
|
|
|
|
static inline void
|
|
_eo_data_xunref_internal(_Eo_Object *obj, void *data, const _Eo_Object *ref_obj)
|
|
{
|
|
#ifdef EO_DEBUG
|
|
const _Eo_Class *klass = obj->klass;
|
|
Eina_Bool in_range = (((char *)data >= (((char *) obj) + _eo_sz)) &&
|
|
((char *)data < (((char *) obj) + klass->obj_size)));
|
|
if (!in_range)
|
|
{
|
|
ERR("Data %p is not in the data range of the object %p (%s).", data, (Eo *)obj->headr.id, obj->klass->desc->name);
|
|
}
|
|
#else
|
|
(void) data;
|
|
#endif
|
|
if (obj->datarefcount == 0)
|
|
{
|
|
ERR("Data for object %zx (%s) is already not referenced.", (size_t)_eo_id_get(obj), obj->klass->desc->name);
|
|
}
|
|
else
|
|
{
|
|
(obj->datarefcount)--;
|
|
}
|
|
#ifdef EO_DEBUG
|
|
Eo_Xref_Node *xref = NULL;
|
|
EINA_INLIST_FOREACH(obj->data_xrefs, xref)
|
|
{
|
|
if (xref->ref_obj == _eo_id_get(ref_obj))
|
|
break;
|
|
}
|
|
|
|
if (xref)
|
|
{
|
|
obj->data_xrefs = eina_inlist_remove(obj->data_xrefs, EINA_INLIST_GET(xref));
|
|
free(xref);
|
|
}
|
|
else
|
|
{
|
|
ERR("ref_obj (0x%zx) does not reference data (%p) of obj (0x%zx).", (size_t)_eo_id_get(ref_obj), data, (size_t)_eo_id_get(obj));
|
|
}
|
|
#else
|
|
(void) ref_obj;
|
|
#endif
|
|
}
|
|
|
|
EAPI void *
|
|
eo_data_scope_get(const Eo *obj_id, const Eo_Class *klass_id)
|
|
{
|
|
void *ret;
|
|
EO_OBJ_POINTER_RETURN_VAL(obj_id, obj, NULL);
|
|
EO_CLASS_POINTER_RETURN_VAL(klass_id, klass, NULL);
|
|
|
|
#ifdef EO_DEBUG
|
|
if (!_eo_class_mro_has(obj->klass, klass))
|
|
{
|
|
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);
|
|
return NULL;
|
|
}
|
|
#endif
|
|
|
|
ret = _eo_data_scope_safe_get(obj, klass);
|
|
|
|
#ifdef EO_DEBUG
|
|
if (!ret && (klass->desc->data_size == 0))
|
|
{
|
|
ERR("Tried getting data of class '%s', but it has none.", klass->desc->name);
|
|
}
|
|
#endif
|
|
|
|
return ret;
|
|
}
|
|
|
|
EAPI void *
|
|
eo_data_xref_internal(const char *file, int line, const Eo *obj_id, const Eo_Class *klass_id, const Eo *ref_obj_id)
|
|
{
|
|
void *ret;
|
|
EO_OBJ_POINTER_RETURN_VAL(obj_id, obj, NULL);
|
|
EO_OBJ_POINTER_RETURN_VAL(ref_obj_id, ref_obj, NULL);
|
|
_Eo_Class *klass = NULL;
|
|
if (klass_id)
|
|
{
|
|
EO_CLASS_POINTER_RETURN_VAL(klass_id, klass2, NULL);
|
|
klass = klass2;
|
|
|
|
#ifdef EO_DEBUG
|
|
if (!_eo_class_mro_has(obj->klass, klass))
|
|
{
|
|
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);
|
|
return NULL;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
ret = _eo_data_xref_internal(file, line, obj, klass, ref_obj);
|
|
|
|
#ifdef EO_DEBUG
|
|
if (klass && !ret && (klass->desc->data_size == 0))
|
|
{
|
|
ERR("Tried getting data of class '%s', but it has none.", klass->desc->name);
|
|
}
|
|
#endif
|
|
|
|
return ret;
|
|
}
|
|
|
|
EAPI void
|
|
eo_data_xunref_internal(const Eo *obj_id, void *data, const Eo *ref_obj_id)
|
|
{
|
|
EO_OBJ_POINTER_RETURN(obj_id, obj);
|
|
EO_OBJ_POINTER_RETURN(ref_obj_id, ref_obj);
|
|
_eo_data_xunref_internal(obj, data, ref_obj);
|
|
}
|
|
|
|
EAPI Eina_Bool
|
|
eo_init(void)
|
|
{
|
|
const char *log_dom = "eo";
|
|
if (_eo_init_count++ > 0)
|
|
return EINA_TRUE;
|
|
|
|
eina_init();
|
|
|
|
_eo_sz = EO_ALIGN_SIZE(sizeof(_Eo_Object));
|
|
_eo_class_sz = EO_ALIGN_SIZE(sizeof(_Eo_Class));
|
|
|
|
_eo_classes = NULL;
|
|
_eo_classes_last_id = EO_CLASS_IDS_FIRST - 1;
|
|
_eo_ops_last_id = EO_OP_IDS_FIRST;
|
|
_eo_log_dom = eina_log_domain_register(log_dom, EINA_COLOR_LIGHTBLUE);
|
|
if (_eo_log_dom < 0)
|
|
{
|
|
EINA_LOG_ERR("Could not register log domain: %s.", log_dom);
|
|
return EINA_FALSE;
|
|
}
|
|
|
|
if (!eina_spinlock_new(&_eo_class_creation_lock))
|
|
{
|
|
EINA_LOG_ERR("Could not init lock.");
|
|
return EINA_FALSE;
|
|
}
|
|
|
|
if (!eina_spinlock_new(&_ops_storage_lock))
|
|
{
|
|
EINA_LOG_ERR("Could not init lock.");
|
|
return EINA_FALSE;
|
|
}
|
|
|
|
if (!eina_spinlock_new(&_super_class_lock))
|
|
{
|
|
EINA_LOG_ERR("Could not init lock.");
|
|
return EINA_FALSE;
|
|
}
|
|
|
|
eina_magic_string_static_set(EO_EINA_MAGIC, EO_EINA_MAGIC_STR);
|
|
eina_magic_string_static_set(EO_FREED_EINA_MAGIC,
|
|
EO_FREED_EINA_MAGIC_STR);
|
|
eina_magic_string_static_set(EO_CLASS_EINA_MAGIC,
|
|
EO_CLASS_EINA_MAGIC_STR);
|
|
|
|
#ifndef _WIN32
|
|
_ops_storage = eina_hash_pointer_new(NULL);
|
|
#else
|
|
_ops_storage = eina_hash_string_superfast_new(NULL);
|
|
#endif
|
|
|
|
#ifdef EO_DEBUG
|
|
/* Call it just for coverage purposes. Ugly I know, but I like it better than
|
|
* casting everywhere else. */
|
|
_eo_class_isa_func(NULL, NULL, NULL);
|
|
#endif
|
|
|
|
_eo_add_fallback_init();
|
|
|
|
eina_log_timing(_eo_log_dom,
|
|
EINA_LOG_STATE_STOP,
|
|
EINA_LOG_STATE_INIT);
|
|
|
|
/* bootstrap EO_CLASS_CLASS */
|
|
(void) EO_CLASS_CLASS;
|
|
|
|
return EINA_TRUE;
|
|
}
|
|
|
|
EAPI Eina_Bool
|
|
eo_shutdown(void)
|
|
{
|
|
size_t i;
|
|
_Eo_Class **cls_itr = _eo_classes;
|
|
|
|
if (--_eo_init_count > 0)
|
|
return EINA_TRUE;
|
|
|
|
eina_log_timing(_eo_log_dom,
|
|
EINA_LOG_STATE_START,
|
|
EINA_LOG_STATE_SHUTDOWN);
|
|
|
|
_eo_add_fallback_shutdown();
|
|
|
|
for (i = 0 ; i < _eo_classes_last_id ; i++, cls_itr++)
|
|
{
|
|
if (*cls_itr)
|
|
eo_class_free(*cls_itr);
|
|
}
|
|
|
|
eina_spinlock_take(&_eo_class_creation_lock);
|
|
_eo_classes_release();
|
|
eina_spinlock_release(&_eo_class_creation_lock);
|
|
|
|
eina_hash_free(_ops_storage);
|
|
|
|
eina_spinlock_free(&_super_class_lock);
|
|
eina_spinlock_free(&_ops_storage_lock);
|
|
eina_spinlock_free(&_eo_class_creation_lock);
|
|
|
|
_eo_free_ids_tables();
|
|
|
|
eina_log_domain_unregister(_eo_log_dom);
|
|
_eo_log_dom = -1;
|
|
|
|
++_eo_init_generation;
|
|
|
|
eina_shutdown();
|
|
return EINA_FALSE;
|
|
}
|
|
|
|
EAPI Eina_Bool
|
|
eo_destructed_is(const Eo *obj_id)
|
|
{
|
|
EO_OBJ_POINTER_RETURN_VAL(obj_id, obj, EINA_FALSE);
|
|
|
|
return obj->destructed;
|
|
}
|
|
|
|
EAPI void
|
|
eo_manual_free_set(Eo *obj_id, Eina_Bool manual_free)
|
|
{
|
|
EO_OBJ_POINTER_RETURN(obj_id, obj);
|
|
obj->manual_free = manual_free;
|
|
}
|
|
|
|
EAPI Eina_Bool
|
|
eo_manual_free(Eo *obj_id)
|
|
{
|
|
EO_OBJ_POINTER_RETURN_VAL(obj_id, obj, EINA_FALSE);
|
|
|
|
if (EINA_FALSE == obj->manual_free)
|
|
{
|
|
ERR("Tried to manually free the object %p while the option has not been set; see eo_manual_free_set for more information.", obj);
|
|
return EINA_FALSE;
|
|
}
|
|
|
|
if (!obj->destructed)
|
|
{
|
|
ERR("Tried deleting the object %p while still referenced(%d).", obj_id, obj->refcount);
|
|
return EINA_FALSE;
|
|
}
|
|
|
|
_eo_free(obj);
|
|
|
|
return EINA_TRUE;
|
|
}
|
|
|