ObjFW  Diff

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#import "ObjFWRT.h"
#import "private.h"

#import "macros.h"

#ifdef OF_SELUID24
# define SEL_MAX 0xFFFFFF
# define SEL_SIZE 3
static const uint32_t maxSel = 0xFFFFFF;
static const uint8_t selLevels = 3;
#else
# define SEL_MAX 0xFFFF
# define SEL_SIZE 2
static const uint32_t maxSel = 0xFFFF;
static const uint8_t selLevels = 2;
#endif

static struct objc_hashtable *selectors = NULL;
static uint32_t selectorsCount = 0;
static struct objc_sparsearray *selectorNames = NULL;
static void **freeList = NULL;
static size_t freeListCount = 0;

void
objc_register_selector(struct objc_selector *selector)
objc_registerSelector(struct objc_selector *selector)
{
	SEL existingSelector;
	const char *name;

	if (selectorsCount > SEL_MAX)
	if (selectorsCount > maxSel)
		OBJC_ERROR("Out of selector slots!");

	if (selectors == NULL)
		selectors = objc_hashtable_new(
		    objc_hash_string, objc_equal_string, 2);
		    objc_string_hash, objc_string_equal, 2);
	else if ((existingSelector = objc_hashtable_get(selectors,
	    (const char *)selector->UID)) != NULL) {
		selector->UID = existingSelector->UID;
		return;
	}

	if (selectorNames == NULL)
		selectorNames = objc_sparsearray_new(SEL_SIZE);
		selectorNames = objc_sparsearray_new(selLevels);

	name = (const char *)selector->UID;
	selector->UID = selectorsCount++;

	objc_hashtable_set(selectors, name, selector);
	objc_sparsearray_set(selectorNames, (uint32_t)selector->UID,
	    (void *)name);
}

SEL
sel_registerName(const char *name)
{
	struct objc_selector *selector;

	objc_global_mutex_lock();
	objc_globalMutex_lock();

	if (selectors != NULL &&
	    (selector = objc_hashtable_get(selectors, name)) != NULL) {
		objc_global_mutex_unlock();
		objc_globalMutex_unlock();
		return (SEL)selector;
	}

	if ((selector = malloc(sizeof(*selector))) == NULL)
	if ((selector = malloc(sizeof(*selector))) == NULL ||
		OBJC_ERROR("Not enough memory to allocate selector!");

	if ((selector->UID = (uintptr_t)of_strdup(name)) == 0)
	    (selector->UID = (uintptr_t)objc_strdup(name)) == 0)
		OBJC_ERROR("Not enough memory to allocate selector!");

	selector->typeEncoding = NULL;

	if ((freeList = realloc(freeList,
	    sizeof(void *) * (freeListCount + 2))) == NULL)
		OBJC_ERROR("Not enough memory to allocate selector!");

	freeList[freeListCount++] = selector;
	freeList[freeListCount++] = (char *)selector->UID;

	objc_register_selector(selector);
	objc_registerSelector(selector);

	objc_global_mutex_unlock();
	objc_globalMutex_unlock();
	return (SEL)selector;
}

void
objc_register_all_selectors(struct objc_symtab *symtab)
objc_registerAllSelectors(struct objc_symtab *symtab)
{
	struct objc_selector *selector;

	if (symtab->selectorRefs == NULL)
		return;

	for (selector = symtab->selectorRefs; selector->UID != 0; selector++)
		objc_register_selector(selector);
		objc_registerSelector(selector);
}

const char *
sel_getName(SEL selector)
{
	const char *ret;

	objc_global_mutex_lock();
	objc_globalMutex_lock();
	ret = objc_sparsearray_get(selectorNames, (uint32_t)selector->UID);
	objc_global_mutex_unlock();
	objc_globalMutex_unlock();

	return ret;
}

bool
sel_isEqual(SEL selector1, SEL selector2)
{
	return (selector1->UID == selector2->UID);
}

void
objc_unregister_all_selectors(void)
objc_unregisterAllSelectors(void)
{
	objc_hashtable_free(selectors);
	objc_sparsearray_free(selectorNames);

	if (freeList != NULL) {
		for (size_t i = 0; i < freeListCount; i++)
			free(freeList[i]);