Function check_diff

lib_acl_cpp/samples/diff/main.cpp:93–202

}

static bool check_diff(const char* new_file, const char* old_file,
	const DIFF_RES* res = NULL)
{
	// 首先定义差集比较器
	acl::diff_manager manager;
	// 存放当前对象
	std::vector<acl::diff_object*> cur_objs;
	// 存放旧的对象
	std::vector<acl::diff_object*> old_objs;

	// 先从文件中读取当前的对象至新对象集合中
	int n = load_objs(manager, new_file, cur_objs);
	if (n < 0)
	{
		printf("load curr objs error from %s\r\n", new_file);
		return false;
	}
	printf("cur objs: %d\r\n", n);

	// 再从文件中读取旧的对象至旧对象集合中
	n = load_objs(manager, old_file, old_objs);
	if (n < 0)
	{
		printf("load old objs error from %s\r\n", old_file);
		return false;
	}

	struct timeval begin;
	gettimeofday(&begin, NULL);

	// 开始进行差集比较，并获得最终新增对象人个数
	manager.diff_changes(cur_objs, old_objs);

	struct timeval end;
	gettimeofday(&end, NULL);

	double spent = acl::stamp_sub(end, begin);
	printf("spent: %.4f ms\r\n", spent);

	printf("-------------------------------------------------------\r\n");

	// 获得新增对象集合
	const std::vector<acl::diff_object*>& new_objs = manager.get_new();

	// 打印新增对象至屏幕，限定最大输出 10 个
	print_objs(new_objs, "new objs", 10);
	printf("new nobjs: %d\r\n", (int) new_objs.size());

	printf("-------------------------------------------------------\r\n");

	// 获得被删除的对象集合
	const std::vector<acl::diff_object*>& del_objs = manager.get_deleted();

	// 打印删除的对象至屏幕，限定最大输出 10 个
	print_objs(del_objs, "deleted objs", 10);
	printf("deleted objs: %d\r\n", (int) del_objs.size());

	printf("-------------------------------------------------------\r\n");