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152
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-
+
+
-
+
+
-
+
-
+
+
+
+
+
-
+
|
}
break;
}
}
}
if (value != nil) {
if (value != nil && class_respondsToSelector(object_getClass(value),
@selector(allowsWeakReference)) && [value allowsWeakReference]) {
struct weak_ref *ref = objc_hashtable_get(hashtable, value);
if (ref == NULL) {
if ((ref = calloc(1, sizeof(*ref))) == NULL)
OBJC_ERROR("Not enough memory to allocate weak "
"reference!");
objc_hashtable_set(hashtable, value, ref);
}
if ((ref->locations = realloc(ref->locations,
(ref->count + 1) * sizeof(id*))) == NULL)
OBJC_ERROR("Not enough memory to allocate weak "
"reference!")
ref->locations[ref->count++] = object;
}
} else
value = nil;
*object = value;
#ifdef OF_HAVE_THREADS
if (!of_spinlock_unlock(&spinlock))
OBJC_ERROR("Failed to unlock spinlock!")
#endif
return value;
}
id
objc_loadWeakRetained(id *object)
{
id ret = nil;
id value = nil;
struct weak_ref *ref;
#ifdef OF_HAVE_THREADS
if (!of_spinlock_lock(&spinlock))
OBJC_ERROR("Failed to lock spinlock!")
#endif
if ((ref = objc_hashtable_get(hashtable, *object)) != NULL)
ret = *object;
value = *object;
#ifdef OF_HAVE_THREADS
if (!of_spinlock_unlock(&spinlock))
OBJC_ERROR("Failed to unlock spinlock!")
#endif
if (class_respondsToSelector(object_getClass(value),
@selector(retainWeakReference)) && [value retainWeakReference])
return value;
return objc_retain(ret);
return nil;
}
id
objc_initWeak(id *object, id value)
{
*object = nil;
return objc_storeWeak(object, value);
|