/* SPDX-License-Identifier: Apache-2.0
 * (c) 2025, Konstantin Demin
 */

#ifndef INCLUDE_OVERLAY_COMMON_HH
#define INCLUDE_OVERLAY_COMMON_HH 1

#include <vector>

extern "C" {
	#include <dirent.h>
}

constexpr unsigned int ovl_name_max = sizeof(dirent::d_name);
constexpr unsigned int ovl_path_max = (PATH_MAX);
/*
constexpr unsigned int ovl_path_max =
#ifdef PATH_MAX
  #if (PATH_MAX > 0) && (PATH_MAX <= 8192)
    (PATH_MAX);
  #else
    8192;
  #endif
#else
    4096;
#endif
*/

constexpr unsigned int ovl_path_name_ratio = ovl_path_max / ovl_name_max;
constexpr unsigned int ovl_depth_max = ovl_path_name_ratio - 1;

struct ovl_name_t {
	size_t  len;
	char    str[ovl_name_max];
};

struct ovl_path_t {
	size_t  len;
	char    str[ovl_path_max];
};
typedef std::vector<ovl_path_t>  ovl_path_vec;

#endif /* INCLUDE_OVERLAY_COMMON_HH */