/* SPDX-License-Identifier: BSD-2-Clause */

/**
 * @file
 *
 * @ingroup RTEMSAPISystemLibrary
 *
 * @brief This header file provides the statvfs() and fstatvfs() interfaces.
 *
 * The statvfs() is defined by the SUS:
 *
 * - http://www.opengroup.org/onlinepubs/009695399/basedefs/sys/statvfs.h.html
 */

/*
 *  COPYRIGHT (c) 2009 Chris Johns <chrisj@rtems.org>
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

/*
 */

#ifndef _SYS_STATVFS_H_
#define _SYS_STATVFS_H_

#include <stdint.h>

#ifdef __cplusplus
extern "C" {
#endif

typedef uint64_t fsblkcnt_t;
typedef uint32_t fsfilcnt_t;

struct statvfs
{
  unsigned long f_bsize;   /**< File system block size. */
  unsigned long f_frsize;  /**< Fundamental file system block size. */
  fsblkcnt_t    f_blocks;  /**< Total number of blocks on file system in units
                            * of f_frsize. */
  fsblkcnt_t    f_bfree;   /**< Total number of free blocks. */
  fsblkcnt_t    f_bavail;  /**< Number of free blocks available to
                            * non-privileged process. */
  fsfilcnt_t    f_files;   /**< Total number of file serial numbers. */
  fsfilcnt_t    f_ffree;   /**< Total number of free file serial numbers. */
  fsfilcnt_t    f_favail;  /**< Number of file serial numbers available to
                            * non-privileged process. */
  unsigned long f_fsid;    /**< File system ID. */
  unsigned long f_flag;    /**< Bit mask of f_flag values. */
  unsigned long f_namemax; /**< Maximum filename length. */
};

extern int statvfs(const char *__restrict , struct statvfs *__restrict);
extern int fstatvfs(int, struct statvfs *);

#ifdef __cplusplus
}
#endif

#endif