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efl/src/lib/eo/eo.c

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#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#ifdef HAVE_DLADDR
# include <dlfcn.h>
#endif
#include <Eina.h>
#include "Eo.h"
#include "eo_ptr_indirection.h"
#include "eo_private.h"
#define EO_CLASS_IDS_FIRST 1
#define EO_OP_IDS_FIRST 1
/* Used inside the class_get functions of classes, see #EO_DEFINE_CLASS */
EAPI Eina_Spinlock _eo_class_creation_lock;
int _eo_log_dom = -1;
static _Eo_Class **_eo_classes;
static Eo_Id _eo_classes_last_id;
static int _eo_init_count = 0;
static Eo_Op _eo_ops_last_id = 0;
static size_t _eo_sz = 0;
static size_t _eo_class_sz = 0;
static void _eo_condtor_reset(_Eo_Object *obj);
static inline void *_eo_data_scope_get(const _Eo_Object *obj, const _Eo_Class *klass);
static inline void *_eo_data_xref_internal(const char *file, int line, _Eo_Object *obj, const _Eo_Class *klass, const _Eo_Object *ref_obj);
static inline void _eo_data_xunref_internal(_Eo_Object *obj, void *data, const _Eo_Object *ref_obj);
static const _Eo_Class *_eo_op_class_get(Eo_Op op);
static const char * _eo_op_id_name_get(Eo_Op op);
//avi dbg start
static unsigned int eo_data_scope_get_counter=0;
static clock_t eo_data_scope_get_clocks =0;
static unsigned int eo_op_class_counter=0;
static clock_t eo_op_class_get_clocks =0;
static unsigned int eo_call_resolve_counter=0;
static clock_t eo_call_resolve_clocks =0;
//avi dbg end
/* Start of Dich */
/* How we search and store the implementations in classes. */
#define DICH_CHAIN_LAST_BITS 5
#define DICH_CHAIN_LAST_SIZE (1 << DICH_CHAIN_LAST_BITS)
#define DICH_CHAIN1(x) ((x) >> DICH_CHAIN_LAST_BITS)
#define DICH_CHAIN_LAST(x) ((x) & ((1 << DICH_CHAIN_LAST_BITS) - 1))
/* We are substracting the mask here instead of "AND"ing because it's a hot path,
* it should be a valid class at this point, and this lets the compiler do 1
* substraction at compile time. */
#define _UNMASK_ID(id) ((id) - MASK_CLASS_TAG)
#define ID_CLASS_GET(id) ({ \
(_Eo_Class *) (((_UNMASK_ID(id) <= _eo_classes_last_id) && (_UNMASK_ID(id) > 0)) ? \
(_eo_classes[_UNMASK_ID(id) - 1]) : NULL); \
})
static inline void
_dich_chain_alloc(Dich_Chain1 *chain1)
{
if (!chain1->funcs)
{
chain1->funcs = calloc(DICH_CHAIN_LAST_SIZE, sizeof(*(chain1->funcs)));
}
}
static inline void
_dich_copy_all(_Eo_Class *dst, const _Eo_Class *src)
{
Eo_Op i;
const Dich_Chain1 *sc1 = src->chain;
Dich_Chain1 *dc1 = dst->chain;
for (i = 0 ; i < src->chain_size ; i++, sc1++, dc1++)
{
if (sc1->funcs)
{
size_t j;
_dich_chain_alloc(dc1);
const op_type_funcs *sf = sc1->funcs;
op_type_funcs *df = dc1->funcs;
for (j = 0 ; j < DICH_CHAIN_LAST_SIZE ; j++, df++, sf++)
{
if (sf->func)
{
memcpy(df, sf, sizeof(*df));
}
}
}
}
}
static inline const op_type_funcs *
_dich_func_get(const _Eo_Class *klass, Eo_Op op)
{
size_t idx1 = DICH_CHAIN1(op);
if (EINA_UNLIKELY(idx1 >= klass->chain_size))
return NULL;
Dich_Chain1 *chain1 = &klass->chain[idx1];
if (EINA_UNLIKELY(!chain1->funcs))
return NULL;
return &chain1->funcs[DICH_CHAIN_LAST(op)];
}
static inline Eina_Bool
_dich_func_set(_Eo_Class *klass, Eo_Op op, eo_op_func_type func)
{
op_type_funcs *fsrc;
size_t idx1 = DICH_CHAIN1(op);
Dich_Chain1 *chain1 = &klass->chain[idx1];
_dich_chain_alloc(chain1);
fsrc = &chain1->funcs[DICH_CHAIN_LAST(op)];
if (fsrc->src == klass)
{
const _Eo_Class *op_kls = _eo_op_class_get(op);
const char *op_name = _eo_op_id_name_get(op);
ERR("Class '%s': Overriding func %p for op %d (%s:'%s') with %p.",
klass->desc->name, fsrc->func, op, op_kls->desc->name, op_name, func);
return EINA_FALSE;
}
fsrc->func = func;
fsrc->src = klass;
return EINA_TRUE;
}
static inline void
_dich_func_clean_all(_Eo_Class *klass)
{
size_t i;
Dich_Chain1 *chain1 = klass->chain;
for (i = 0 ; i < klass->chain_size ; i++, chain1++)
{
if (chain1->funcs)
free(chain1->funcs);
}
free(klass->chain);
klass->chain = NULL;
}
/* END OF DICH */
static inline Eina_Bool
_eo_is_a_class(const Eo *eo_id)
{
Eo_Id oid;
#ifdef HAVE_EO_ID
oid = (Eo_Id) eo_id;
#else
/* fortunately EO_OBJ_POINTER_RETURN* will handle NULL eo_id */
if (!eo_id) return EINA_FALSE;
oid = ((Eo_Base *) eo_id)->id;
#endif
return ((((oid >> REF_TAG_SHIFT) & 0x1) == 0x0) &&
(oid & MASK_CLASS_TAG));
}
static inline _Eo_Class *
_eo_class_pointer_get(const Eo_Class *klass_id)
{
#ifdef HAVE_EO_ID
return ID_CLASS_GET((Eo_Id)klass_id);
#else
return (_Eo_Class *) klass_id;
#endif
}
static const _Eo_Class *
_eo_op_class_get(Eo_Op op)
{
eo_op_class_counter++;
/* FIXME: Make it fast. */
_Eo_Class **itr = _eo_classes;
int mid, max, min;
clock_t start_time=clock();
min = 0;
max = _eo_classes_last_id - 1;
while (min <= max)
{
mid = (min + max) / 2;
if (itr[mid]->base_id + itr[mid]->desc->ops.count < op)
min = mid + 1;
else if (itr[mid]->base_id > op)
max = mid - 1;
else{
eo_op_class_get_clocks+=clock()-start_time;
return itr[mid];
}
}
eo_op_class_get_clocks+=clock()-start_time;
return NULL;
}
static const Eo_Op_Description *
_eo_op_id_desc_get(Eo_Op op)
{
unsigned int i;
const _Eo_Class *klass;
const Eo_Op_Description *op_descs;
if (op == EO_NOOP)
return NULL;
klass = _eo_op_class_get(op);
if (klass)
{
DBG("klass %p %s", klass, klass->desc->name);
op_descs = klass->desc->ops.descs;
for (i = 0; i < klass->desc->ops.count; i++)
{
if (op_descs[i].op == op)
return &op_descs[i];
}
}
return NULL;
}
static const char *
_eo_op_id_name_get(Eo_Op op)
{
const Eo_Op_Description *desc = _eo_op_id_desc_get(op);
return (desc) ? desc->doc : NULL;
}
static inline const op_type_funcs *
_eo_kls_itr_next(const _Eo_Class *orig_kls, const _Eo_Class *cur_klass, Eo_Op op)
{
const _Eo_Class **kls_itr = NULL;
/* Find the kls itr. */
kls_itr = orig_kls->mro;
while (*kls_itr && (*kls_itr != cur_klass))
kls_itr++;
if (*kls_itr)
{
kls_itr++;
while (*kls_itr)
{
const op_type_funcs *fsrc = _dich_func_get(*kls_itr, op);
if (!fsrc || !fsrc->func)
{
kls_itr++;
continue;
}
return fsrc;
}
}
return NULL;
}
/************************************ EO ************************************/
EAPI Eo_Hook_Call eo_hook_call_pre = NULL;
EAPI Eo_Hook_Call eo_hook_call_post = NULL;
#define EO_INVALID_DATA (void *) -1
// 1024 entries == 16k or 32k (32 or 64bit) for eo call stack. that's 1023
// imbricated/recursive calls it can handle before barfing. i'd say that's ok
#define EO_CALL_STACK_DEPTH_MIN 1024
#define EO_CALL_STACK_SHRINK_DROP (EO_CALL_STACK_DEPTH_MIN >> 1)
typedef struct _Eo_Stack_Frame
{
const Eo *eo_id;
union {
_Eo_Object *obj;
const _Eo_Class *kls;
} o;
const _Eo_Class *cur_klass;
void *obj_data;
} Eo_Stack_Frame;
#define EO_CALL_STACK_SIZE (EO_CALL_STACK_DEPTH_MIN * sizeof(Eo_Stack_Frame))
static Eina_TLS _eo_call_stack_key = 0;
typedef struct _Eo_Call_Stack {
Eo_Stack_Frame *frames;
Eo_Stack_Frame *frame_ptr;
Eo_Stack_Frame *last_frame;
Eo_Stack_Frame *shrink_frame;
} Eo_Call_Stack;
#define MEM_PAGE_SIZE 4096
static void *
_eo_call_stack_mem_alloc(size_t size)
{
#ifdef HAVE_MMAP
// allocate eo call stack via mmped anon segment if on linux - more
// secure and safe. also gives page aligned memory allowing madvise
void *ptr;
size_t newsize;
newsize = MEM_PAGE_SIZE * ((size + MEM_PAGE_SIZE - 1) /
MEM_PAGE_SIZE);
ptr = mmap(NULL, newsize, PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANON, -1, 0);
if (ptr == MAP_FAILED)
{
ERR("eo call stack mmap failed.");
return NULL;
}
return ptr;
#else
//in regular cases just use malloc
return calloc(1, size);
#endif
}
#ifdef HAVE_MMAP
static void
_eo_call_stack_mem_resize(void **ptr EINA_UNUSED, size_t newsize, size_t size)
{
// FIXME we don't grow
if (newsize > size)
{
CRI("eo call stack overflow, abort.");
abort();
}
// FIXME resize call stack down
return;
size_t addr = MEM_PAGE_SIZE * ((newsize + MEM_PAGE_SIZE - 1) /
MEM_PAGE_SIZE);
madvise(((unsigned char *)*ptr) + addr, size - addr, MADV_DONTNEED);
#else
static void
_eo_call_stack_mem_resize(void **ptr, size_t newsize, size_t size EINA_UNUSED)
{
*ptr = realloc(*ptr, newsize);
if (!*ptr)
{
CRI("eo call stack resize failed, abort.");
abort();
}
#endif
}
#ifdef HAVE_MMAP
static void
_eo_call_stack_mem_free(void *ptr, size_t size)
{
// free mmaped memory
munmap(ptr, size);
#else
static void
_eo_call_stack_mem_free(void *ptr, size_t size EINA_UNUSED)
{
// free regular memory
free(ptr);
#endif
}
static Eo_Call_Stack *
_eo_call_stack_create()
{
Eo_Call_Stack *stack;
stack = calloc(1, sizeof(Eo_Call_Stack));
if (!stack)
return NULL;
stack->frames = _eo_call_stack_mem_alloc(EO_CALL_STACK_SIZE);
if (!stack->frames)
{
free(stack);
return NULL;
}
// first frame is never used
stack->frame_ptr = stack->frames;
stack->last_frame = &stack->frames[EO_CALL_STACK_DEPTH_MIN - 1];
stack->shrink_frame = stack->frames;
return stack;
}
static void
_eo_call_stack_free(void *ptr)
{
Eo_Call_Stack *stack = (Eo_Call_Stack *) ptr;
if (!stack) return;
if (stack->frames)
_eo_call_stack_mem_free(stack->frames, EO_CALL_STACK_SIZE);
free(stack);
}
static inline Eo_Call_Stack *
_eo_call_stack_get(Eina_Bool is_main_loop)
{
static Eo_Call_Stack *main_loop_stack = NULL;
Eo_Call_Stack *stack = is_main_loop ?
main_loop_stack : eina_tls_get(_eo_call_stack_key);
if (stack) return stack;
stack = _eo_call_stack_create();
if (!stack)
{
EINA_LOG_ERR("Could not alloc eo call stack.");
return NULL;
}
if (is_main_loop)
{
main_loop_stack = stack;
}
else if (!eina_tls_set(_eo_call_stack_key, stack))
{
EINA_LOG_ERR("Could not set eo call stack in TLS key.");
_eo_call_stack_free(stack);
return NULL;
}
return stack;
}
static inline void
_eo_call_stack_resize(Eo_Call_Stack *stack, Eina_Bool grow)
{
size_t sz, next_sz;
int frame_offset;
sz = stack->last_frame - stack->frames + 1;
if (grow)
next_sz = sz * 2;
else
next_sz = sz / 2;
frame_offset = stack->frame_ptr - stack->frames;
DBG("resize from %lu to %lu", (long unsigned int)sz, (long unsigned int)next_sz);
_eo_call_stack_mem_resize((void **)&(stack->frames),
next_sz * sizeof(Eo_Stack_Frame),
sz * sizeof(Eo_Stack_Frame));
if (!stack->frames)
{
CRI("unable to resize call stack, abort.");
abort();
}
stack->frame_ptr = &stack->frames[frame_offset];
stack->last_frame = &stack->frames[next_sz - 1];
if (next_sz == EO_CALL_STACK_DEPTH_MIN)
frame_offset = 0;
else
{
if (grow)
frame_offset = sz - EO_CALL_STACK_SHRINK_DROP;
else
frame_offset = (next_sz / 2) - EO_CALL_STACK_SHRINK_DROP;
}
stack->shrink_frame = &stack->frames[frame_offset];
}
static inline Eina_Bool
_eo_do_internal(const Eo *eo_id, const Eo_Class *cur_klass_id,
Eina_Bool is_super, Eo_Stack_Frame *fptr, Eo_Stack_Frame *pfptr)
{
Eina_Bool is_klass = _eo_is_a_class(eo_id);
/* If we are already in the same object context, we inherit info from it. */
if (pfptr)
{
memcpy(fptr, pfptr, sizeof(Eo_Stack_Frame));
if (!is_klass)
_eo_ref(fptr->o.obj);
}
else
{
fptr->eo_id = eo_id;
fptr->obj_data = EO_INVALID_DATA;
if (is_klass)
{
EO_CLASS_POINTER_RETURN_VAL(eo_id, _klass, EINA_FALSE);
fptr->o.kls = _klass;
}
else
{
EO_OBJ_POINTER_RETURN_VAL(eo_id, _obj, EINA_FALSE);
fptr->o.obj = _obj;
_eo_ref(_obj);
}
}
if (is_super)
{
EO_CLASS_POINTER_RETURN_VAL(cur_klass_id, cur_klass, EINA_FALSE);
if (fptr->cur_klass == cur_klass)
fptr->obj_data = EO_INVALID_DATA;
fptr->cur_klass = cur_klass;
}
else
{
fptr->cur_klass = NULL;
}
return EINA_TRUE;
}
EAPI Eina_Bool
_eo_do_start(const Eo *eo_id, const Eo_Class *cur_klass_id, Eina_Bool is_super, const char *file EINA_UNUSED, const char *func EINA_UNUSED, int line EINA_UNUSED)
{
Eina_Bool is_main_loop = eina_main_loop_is();
Eina_Bool ret = EINA_TRUE;
Eo_Stack_Frame *fptr, *pfptr;
Eo_Call_Stack *stack = _eo_call_stack_get(is_main_loop);
if (stack->frame_ptr == stack->last_frame)
_eo_call_stack_resize(stack, EINA_TRUE);
fptr = stack->frame_ptr;
pfptr = ((eo_id) && (fptr->eo_id == eo_id) ? fptr : NULL);
fptr++;
if (!_eo_do_internal(eo_id, cur_klass_id, is_super, fptr, pfptr))
{
fptr->o.obj = NULL;
fptr->cur_klass = NULL;
ret = EINA_FALSE;
}
stack->frame_ptr++;
return ret;
}
EAPI void
_eo_do_end(void)
{
Eo_Stack_Frame *fptr;
Eo_Call_Stack *stack = _eo_call_stack_get(eina_main_loop_is()); // Is it possible to extract information from the scope ?
fptr = stack->frame_ptr;
if (!_eo_is_a_class(fptr->eo_id) && fptr->o.obj)
_eo_unref(fptr->o.obj);
fptr->obj_data = EO_INVALID_DATA;
if (fptr == stack->frames)
{
CRI("eo call stack underflow, abort.");
abort();
}
stack->frame_ptr--;
if (fptr == stack->shrink_frame)
_eo_call_stack_resize(stack, EINA_FALSE);
}
EAPI Eina_Bool
_eo_call_resolve(const char *func_name, const Eo_Op op, Eo_Op_Call_Data *call, Eina_Bool is_main_loop, const char *file, int line)
{
Eo_Stack_Frame *fptr;
const _Eo_Class *klass;
const op_type_funcs *func;
Eina_Bool is_obj;
eo_call_resolve_counter++;
clock_t start_time=clock();
if (op == EO_NOOP) return EINA_FALSE;
fptr = _eo_call_stack_get(is_main_loop)->frame_ptr;
if (EINA_UNLIKELY(!fptr->o.obj))
return EINA_FALSE;
is_obj = !_eo_is_a_class(fptr->eo_id);
klass = (is_obj) ? fptr->o.obj->klass : fptr->o.kls;
/* If we have a current class, we need to itr to the next. */
if (fptr->cur_klass)
{
func = _eo_kls_itr_next(klass, fptr->cur_klass, op);
if (!func)
goto end;
klass = func->src;
}
else
{
func = _dich_func_get(klass, op);
if (!func)
goto end;
}
if (EINA_LIKELY(func->func && func->src))
{
call->func = func->func;
call->klass = _eo_class_id_get(klass);
if (is_obj)
{
call->obj = (Eo *)fptr->eo_id;
if (func->src == fptr->o.obj->klass)
{
if (fptr->obj_data == EO_INVALID_DATA)
fptr->obj_data = _eo_data_scope_get(fptr->o.obj, func->src);
call->data = fptr->obj_data;
}
else
call->data = _eo_data_scope_get(fptr->o.obj, func->src);
}
else
{
call->obj = call->klass;
call->data = NULL;
}
eo_call_resolve_clocks+=clock()-start_time;
return EINA_TRUE;
}
if (func->src != NULL)
{
ERR("in %s:%d: you called a pure virtual func '%s' (%d) of class '%s'.",
file, line, func_name, op, klass->desc->name);
return EINA_FALSE;
}
end:
/* Try composite objects */
if (is_obj)
{
Eina_List *itr;
Eo *emb_obj_id;
EINA_LIST_FOREACH(((_Eo_Object *) fptr->o.obj)->composite_objects, itr, emb_obj_id)
{
_Eo_Object *emb_obj = _eo_obj_pointer_get((Eo_Id)emb_obj_id);
if (!emb_obj)
continue;
func = _dich_func_get(emb_obj->klass, op);
if (func == NULL)
continue;
if (EINA_LIKELY(func->func && func->src))
{
call->obj = _eo_id_get(emb_obj);
call->klass = _eo_class_id_get(emb_obj->klass);
call->func = func->func;
call->data = _eo_data_scope_get(emb_obj, func->src);
eo_call_resolve_clocks+=clock()-start_time;
return EINA_TRUE;
}
}
}
{
const _Eo_Class *main_klass;
main_klass = (is_obj) ? fptr->o.obj->klass : fptr->o.kls;
/* If it's a do_super call. */
if (fptr->cur_klass)
{
ERR("in %s:%d: func '%s' (%d) could not be resolved for class '%s' for super of '%s'.",
file, line, func_name, op, main_klass->desc->name,
fptr->cur_klass->desc->name);
}
else
{
/* we should not be able to take this branch */
ERR("in %s:%d: func '%s' (%d) could not be resolved for class '%s'.",
file, line, func_name, op, main_klass->desc->name);
}
}
eo_call_resolve_clocks+=clock()-start_time;
return EINA_FALSE;
}
static inline const Eo_Op_Description *
_eo_api_desc_get(const void *api_func, const _Eo_Class *klass, const _Eo_Class **extns, const char *api_name)
{
int imin, imax, imid;
const _Eo_Class *cur_klass;
const _Eo_Class **kls_itr = NULL;
const Eo_Op_Description *op_desc;
const Eo_Op_Description *op_descs;
if (klass)
{
for (kls_itr = klass->mro ; *kls_itr ; kls_itr++)
{
cur_klass = *kls_itr;
imin = 0;
imax = cur_klass->desc->ops.count - 1;
op_descs = cur_klass->desc->ops.descs;
while (imax >= imin)
{
imid = (imax + imin) / 2;
op_desc = op_descs + imid;
if (op_desc->api_func > api_func)
imin = imid + 1;
else if (op_desc->api_func < api_func)
imax = imid - 1;
else
return op_desc;
}
#ifdef _WIN32
/* On Windows, DLL API's will be exported using the dllexport flag.
* When used by another library or executable, they will be declared
* using the dllimport flag. What happens really is that two symbols are
* created, at two different addresses. So it's impossible to match
* them. We fallback to plain string comparison based on the
* function name itself. Slow, but this should rarely happen.
*/
for (unsigned int i = 0; i < cur_klass->desc->ops.count; i++)
if (api_name && !strcmp(api_name, op_descs[i].api_name))
{
if (op_descs[i].api_func == NULL || op_descs[i].api_func == ((void (*)())-1))
break;
return &op_descs[i];
}
#endif
}
}
if (extns)
{
for (kls_itr = extns ; *kls_itr ; kls_itr++)
{
cur_klass = *kls_itr;
op_desc = _eo_api_desc_get(api_func, cur_klass, NULL, api_name);
if (op_desc) return op_desc;
}
}
return NULL;
}
EAPI Eo_Op
_eo_api_op_id_get(const void *api_func, Eina_Bool is_main_loop, const char *file, int line)
{
const Eo_Op_Description *desc;
const _Eo_Class *klass;
Eo_Call_Stack *stack = _eo_call_stack_get(is_main_loop);
Eina_Bool class_ref = _eo_is_a_class(stack->frame_ptr->eo_id);
if (EINA_UNLIKELY(!stack->frame_ptr->o.obj))
return EO_NOOP;
if (class_ref)
klass = stack->frame_ptr->o.kls;
else
klass = stack->frame_ptr->o.obj->klass;
// Win32 compatibility: api_name is NULL because we're assuming the
// function pointer is correct (it was referred to using the same
// dllimport vs. dllexport flags).
desc = _eo_api_desc_get(api_func, klass, klass->extensions, NULL);
if (desc == NULL)
{
const char *fct_name = "unknown";
#ifdef HAVE_DLADDR
Dl_info info;
if (dladdr(api_func, &info) != 0)
fct_name = info.dli_sname;
#endif
ERR("in %s:%d: unable to resolve %s api func '%s' %p in class '%s'.",
file, line, (class_ref ? "class" : "regular"),
fct_name, api_func, klass->desc->name);
return EO_NOOP;
}
return desc->op;
}
static int
eo_api_funcs_cmp(const void *p1, const void *p2)
{
const Eo_Op_Description *op1, *op2;
op1 = (Eo_Op_Description *) p1;
op2 = (Eo_Op_Description *) p2;
if (op1->api_func > op2->api_func) return -1;
else if (op1->api_func < op2->api_func) return 1;
else return 0;
}
static Eina_Bool
_eo_class_funcs_set(_Eo_Class *klass)
{
int op_id;
const void *last_api_func;
const Eo_Op_Description *api_desc;
Eo_Op_Description *op_desc;
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;
qsort((void*)op_descs, klass->desc->ops.count, sizeof(Eo_Op_Description), eo_api_funcs_cmp);
last_api_func = NULL;
for (op_desc = op_descs; op_desc->op_type != EO_OP_TYPE_INVALID; op_desc++)
{
if(op_desc->api_func == NULL)
{
ERR("Class '%s': NULL API not allowed (%d NULL->%p '%s').",
klass->desc->name, op_desc->op, op_desc->func, op_desc->doc);
return EINA_FALSE;
}
if (op_desc->op == EO_NOOP)
{
if (op_desc->api_func == last_api_func)
{
ERR("Class '%s': API previously defined (%d %p->%p '%s').",
klass->desc->name, op_desc->op, op_desc->api_func, op_desc->func, op_desc->doc);
return EINA_FALSE;
}
op_desc->op = op_id;
op_id++;
}
else if (op_desc->op == EO_OP_OVERRIDE)
{
#ifdef _WIN32
api_desc = _eo_api_desc_get(op_desc->api_func, klass->parent, klass->extensions, op_desc->api_name);
#else
api_desc = _eo_api_desc_get(op_desc->api_func, klass->parent, klass->extensions, NULL);
#endif
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, op_desc->doc);
return EINA_FALSE;
}
op_desc->op = api_desc->op;
op_desc->doc = api_desc->doc;
}
DBG(" %4d %p->%p '%s'", op_desc->op, op_desc->api_func, op_desc->func, op_desc->doc);
if (!_dich_func_set(klass, op_desc->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)
{
_Eo_Object *obj;
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_Base *) 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_do(eo_id, eo_parent_set(parent_id));
/* If there's a parent. Unref. Eo_add should return an object with either a
* parent ref, or with the lack of, just a ref. */
{
Eo *parent_tmp;
if (!ref && eo_do_ret(eo_id, parent_tmp, eo_parent_get()))
{
_eo_unref(obj);
}
}
return eo_id;
}
Eo *
_eo_add_internal_end(Eo *eo_id)
{
Eo_Stack_Frame *fptr;
Eo_Call_Stack *stack = _eo_call_stack_get(eina_main_loop_is());
fptr = stack->frame_ptr;
if ((fptr == NULL) || (fptr->eo_id != eo_id))
{
ERR("Something very wrong happend to the call stack.");
return NULL;
}
if (EINA_UNLIKELY(!fptr->o.obj))
{
ERR("Corrupt call stuck, shouldn't happen, please report!");
return NULL;
}
if (!fptr->o.obj->condtor_done || fptr->o.obj->do_error)
{
const _Eo_Class *klass = (fptr->cur_klass) ?
fptr->cur_klass : fptr->o.obj->klass;
ERR("Object of class '%s' - Not all of the object constructors have been executed.",
klass->desc->name);
/* Unref twice, once for the ref in _eo_add_internal_start, and once for the basic object ref. */
_eo_unref(fptr->o.obj);
_eo_unref(fptr->o.obj);
return NULL;
}
fptr->o.obj->finalized = EINA_TRUE;
_eo_unref(fptr->o.obj);
return (Eo *)eo_id;
}
EAPI Eo *
_eo_add_end(void)
{
Eo *ret = eo_finalize();
_eo_do_end();
return ret;
}
/*****************************************************************************/
#define _EO_OP_ERR_NO_OP_PRINT(file, line, op, klass) \
do \
{ \
const _Eo_Class *op_klass = _eo_op_class_get(op); \
const char *_dom_name = (op_klass) ? op_klass->desc->name : NULL; \
ERR("in %s:%d: Can't execute function %s:%s (op 0x%x) for class '%s'. Aborting.", \
file, line, _dom_name, _eo_op_id_name_get(op), op, \
(klass) ? klass->desc->name : NULL); \
} \
while (0)
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_ABSTRACT_CLASS_CLASS;
}
EO_OBJ_POINTER_RETURN_VAL(eo_id, obj, NULL);
if (obj->klass)
return _eo_class_id_get(obj->klass);
return NULL;
}
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)
{
if (klass->constructed)
return;
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. */
}
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_Base *) parent, EO_CLASS_EINA_MAGIC))
{
EINA_MAGIC_FAIL((Eo_Base *) 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_Base *) 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);
}
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 = _eo_sz + 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;
}
eina_spinlock_take(&_eo_class_creation_lock);
klass->header.id = ++_eo_classes_last_id | MASK_CLASS_TAG;
{
/* FIXME: Handle errors. */
size_t arrsize = _eo_classes_last_id * sizeof(*_eo_classes);
_Eo_Class **tmp;
tmp = realloc(_eo_classes, arrsize);
/* If it's the first allocation, memset. */
if (!_eo_classes)
memset(tmp, 0, arrsize);
_eo_classes = tmp;
_eo_classes[_UNMASK_ID(klass->header.id) - 1] = klass;
}
eina_spinlock_release(&_eo_class_creation_lock);
_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 void
eo_del(const Eo *obj)
{
Eo *parent_tmp;
if (eo_do_ret(obj, parent_tmp, eo_parent_get()))
{
eo_do(obj, eo_parent_set(NULL));
}
else
{
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_error_set_internal(const Eo *obj_id, const char *file, int line)
{
EO_OBJ_POINTER_RETURN(obj_id, obj);
ERR("Error with obj '%p' at %s:%d.", obj, file, line);
obj->do_error = EINA_TRUE;
}
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_get(const _Eo_Object *obj, const _Eo_Class *klass)
{
eo_data_scope_get_counter++;
clock_t start_time = clock();
if (EINA_LIKELY((klass->desc->data_size > 0) && (klass->desc->type != EO_CLASS_TYPE_MIXIN)))
return ((char *) obj) + _eo_sz + 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){
eo_data_scope_get_clocks+=clock()-start_time;
return NULL;
}
while (doff_itr->klass)
{
if (doff_itr->klass == klass){
eo_data_scope_get_clocks+=clock()-start_time;
return ((char *) obj) + _eo_sz + doff_itr->offset;
}
doff_itr++;
}
}
eo_data_scope_get_clocks+=clock()-start_time;
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_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_get(const Eo *obj_id, const Eo_Class *klass_id)
{
return eo_data_scope_get(obj_id, klass_id);
}
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_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;
}
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);
#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
eina_log_timing(_eo_log_dom,
EINA_LOG_STATE_STOP,
EINA_LOG_STATE_INIT);
/* bootstrap EO_CLASS_CLASS */
(void) EO_ABSTRACT_CLASS_CLASS;
if (_eo_call_stack_key != 0)
WRN("_eo_call_stack_key already set, this should not happen.");
else
{
if (!eina_tls_cb_new(&_eo_call_stack_key, _eo_call_stack_free))
{
EINA_LOG_ERR("Could not create TLS key for call stack.");
return EINA_FALSE;
}
}
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);
for (i = 0 ; i < _eo_classes_last_id ; i++, cls_itr++)
{
if (*cls_itr)
eo_class_free(*cls_itr);
}
if (_eo_classes)
free(_eo_classes);
eina_spinlock_free(&_eo_class_creation_lock);
if (_eo_call_stack_key != 0)
eina_tls_free(_eo_call_stack_key);
_eo_free_ids_tables();
eina_log_domain_unregister(_eo_log_dom);
_eo_log_dom = -1;
eina_shutdown();
return EINA_TRUE;
}
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;
}
static __attribute__((destructor)) void finish(void)
{
printf("eo.c: _eo_data_scope_get= %u time=%f , eo_op_class_get=%u time=%f, eo_call_resolve=%u time=%f\n",
eo_data_scope_get_counter, (double) eo_data_scope_get_clocks /CLOCKS_PER_SEC,
eo_op_class_counter, (double)eo_op_class_get_clocks /CLOCKS_PER_SEC,
eo_call_resolve_counter, (double)eo_call_resolve_clocks /CLOCKS_PER_SEC
);//avi debug
}
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