incubator-nuttx/include/sys/statvfs.h

90 lines
3.3 KiB
C

/****************************************************************************
* include/sys/statvfs.h
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
#ifndef __INCLUDE_SYS_STATVFS_H
#define __INCLUDE_SYS_STATVFS_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <sys/types.h>
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* Definitions for the flag in `f_flag'. These definitions should be
* kept in sync with the definitions in <sys/mount.h>.
*/
#define ST_RDONLY 0x0001 /* Mount read-only. */
#define ST_NOSUID 0x0002 /* Ignore suid and sgid bits. */
#if defined(CONFIG_FS_LARGEFILE) && defined(CONFIG_HAVE_LONG_LONG)
# define statvfs64 statvfs
# define fstatvfs64 fstatvfs
#endif
/****************************************************************************
* Type Definitions
****************************************************************************/
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 */
};
/****************************************************************************
* Public Function Prototypes
****************************************************************************/
#undef EXTERN
#if defined(__cplusplus)
#define EXTERN extern "C"
extern "C"
{
#else
#define EXTERN extern
#endif
int statvfs(FAR const char *path, FAR struct statvfs *buf);
int fstatvfs(int fd, FAR struct statvfs *buf);
#undef EXTERN
#if defined(__cplusplus)
}
#endif
#endif /* __INCLUDE_SYS_STATVFS_H */