Ejemplo n.º 1
0
/*
 * pmalloc_construct -- allocates a new block of memory with a constructor
 *
 * The block offset is written persistently into the off variable, but only
 * after the constructor function has been called.
 *
 * If successful function returns zero. Otherwise an error number is returned.
 */
int
pmalloc_construct(PMEMobjpool *pop, uint64_t *off, size_t size,
	void (*constructor)(PMEMobjpool *pop, void *ptr,
	size_t usable_size, void *arg), void *arg, uint64_t data_off)
{
	int err;

	struct lane_section *lane;
	lane_hold(pop, &lane, LANE_SECTION_ALLOCATOR);

	size_t sizeh = size + sizeof (struct allocation_header);

	struct bucket *b = heap_get_best_bucket(pop, sizeh);

	struct memory_block m = {0, 0, 0, 0};

	m.size_idx = b->calc_units(b, sizeh);

	err = heap_get_bestfit_block(pop, b, &m);

	if (err == ENOMEM && b->type == BUCKET_HUGE)
		goto out; /* there's only one huge bucket */

	if (err == ENOMEM) {
		/*
		 * There's no more available memory in the common heap and in
		 * this lane cache, fallback to the auxiliary (shared) bucket.
		 */
		b = heap_get_auxiliary_bucket(pop, sizeh);
		err = heap_get_bestfit_block(pop, b, &m);
	}

	if (err == ENOMEM) {
		/*
		 * The auxiliary bucket cannot satisfy our request, borrow
		 * memory from other caches.
		 */
		heap_drain_to_auxiliary(pop, b, m.size_idx);
		err = heap_get_bestfit_block(pop, b, &m);
	}

	if (err == ENOMEM) {
		/* we are completely out of memory */
		goto out;
	}

	/*
	 * Now that the memory is reserved we can go ahead with making the
	 * allocation persistent.
	 */
	uint64_t real_size = b->unit_size * m.size_idx;
	persist_alloc(pop, lane, m, real_size, off, constructor, arg, data_off);
	err = 0;
out:
	lane_release(pop);

	return err;
}
Ejemplo n.º 2
0
int php_init_config(char *php_ini_path_override)
{
	char *env_location, *php_ini_search_path;
	int safe_mode_state;
	char *open_basedir;
	int free_ini_search_path=0;
	zend_file_handle fh;
	PLS_FETCH();

	if (zend_hash_init(&configuration_hash, 0, NULL, (dtor_func_t) pvalue_config_destructor, 1)==FAILURE) {
		return FAILURE;
	}

	zend_llist_init(&extension_lists.engine, sizeof(zval), (llist_dtor_func_t) free_estring, 1);
	zend_llist_init(&extension_lists.functions, sizeof(zval), (llist_dtor_func_t)  ZVAL_DESTRUCTOR, 1);
	
	safe_mode_state = PG(safe_mode);
	open_basedir = PG(open_basedir);

	env_location = getenv("PHPRC");
	if (!env_location) {
		env_location="";
	}
	if (php_ini_path_override) {
		php_ini_search_path = php_ini_path_override;
		free_ini_search_path = 0;
	} else {
		char *default_location;
		int free_default_location;

#ifdef PHP_WIN32
		default_location = (char *) emalloc(512);
	
		if (!GetWindowsDirectory(default_location,255)) {
			default_location[0]=0;
		}
		free_default_location=1;
#else
		default_location = PHP_CONFIG_FILE_PATH;
		free_default_location=0;
#endif
		php_ini_search_path = (char *) emalloc(sizeof(".")+strlen(env_location)+strlen(default_location)+2+1);
		free_ini_search_path = 1;
		if(env_location && env_location[0]) {
			sprintf(php_ini_search_path, ".%c%s%c%s", ZEND_PATHS_SEPARATOR, env_location, ZEND_PATHS_SEPARATOR, default_location);
		} else {
			sprintf(php_ini_search_path, ".%c%s", ZEND_PATHS_SEPARATOR, default_location);
		}
		if (free_default_location) {
			efree(default_location);
		}
	}

	PG(safe_mode) = 0;
	PG(open_basedir) = NULL;
	
	fh.handle.fp = php_fopen_with_path("php.ini", "r", php_ini_search_path, &php_ini_opened_path);
	if (free_ini_search_path) {
		efree(php_ini_search_path);
	}
	PG(safe_mode) = safe_mode_state;
	PG(open_basedir) = open_basedir;

	if (!fh.handle.fp) {
		return SUCCESS;  /* having no configuration file is ok */
	}
	fh.type = ZEND_HANDLE_FP;
	fh.filename = php_ini_opened_path;

	zend_parse_ini_file(&fh, 1, php_config_ini_parser_cb, &extension_lists);
	
	if (php_ini_opened_path) {
		zval tmp;
		
		tmp.value.str.len = strlen(php_ini_opened_path);
		tmp.value.str.val = zend_strndup(php_ini_opened_path, tmp.value.str.len);
		tmp.type = IS_STRING;
		zend_hash_update(&configuration_hash, "cfg_file_path", sizeof("cfg_file_path"),(void *) &tmp,sizeof(zval), NULL);
		persist_alloc(php_ini_opened_path);
	}
	
	return SUCCESS;
}