source: rtems/cpukit/libcsupport/include/sys/statvfs.h @ eb649786

4.104.115
Last change on this file since eb649786 was eb649786, checked in by Chris Johns <chrisj@…>, on 10/08/09 at 07:07:36

2009-10-08 Chris Johns <chrisj@…>

  • Makefile.am, preinstall.am: Added statvfs.h.
  • libcsupport/Makefile.am: Add statvfs.c.
  • libcsupport/include/sys/statvfs.h, libcsupport/src/statvfs.c: New.
  • libcsupport/include/rtems/libio.h: Add a file system handler for the statvfs call.
  • libfs/src/devfs/devfs_init.c, libfs/src/dosfs/msdos_init.c, libfs/src/imfs/imfs_init.c, libfs/src/nfsclient/src/nfs.c: Set the statvfs handler to NULL.
  • include/rtems/fs.h: Add a second node access field for the RFS file system to hold a directory offset while the existing field holds the inode number. This save a rescan of the directory when working with directories.
  • libblock/include/rtems/bdbuf.h: Added references and user fields to the buffer descriptor.
  • libblock/src/bdbuf.c: Added dynamic buffer support for different block sizes. Fixed a number of bugs.
  • libblock/src/blkdev.c: Release the disk device on an error.
  • libblock/src/diskdevs.c: Set the block size to the media block size during initialisation of the disk device.
  • libblock/src/flashdisk.c, libblock/src/nvdisk.c, libblock/src/ramdisk.c: Updated the drivers to handle variable block sizes.
  • libfs/src/dosfs/fat.c, libfs/src/dosfs/fat.h: Release any buffers when an error occurs. The FAT buffer layer hangs onto a single buffer while mounted. This should be fixed.
  • sapi/inline/rtems/chain.inl: Added rtems_chain_set_off_chain, rtems_chain_is_node_off_chain, and rtems_chain_previous.
  • score/inline/rtems/score/chain.inl: Added _Chain_Set_off_chain, and _Chain_Is_node_off_chain.
  • libmisc/shell/main_ln.c, libmisc/shell/main_mknod.c, libmisc/shell/mknod-pack_dev.c, libmisc/shell/mknod-pack_dev.h: New shell commands.
  • libmisc/Makefile.am, libmisc/shell/shellconfig.h: Added ln and mknod commands.
  • libmisc/shell/hexdump-display.c: Fixed the reopen bug which showed up as a free with a bad pointer.
  • libmisc/shell/main_mount.c: List the user adding file system when listing the available file systems to mount.
  • libmisc/shell/utils-cp.c: Remove the fixed static copy buffer and use a large dynamic buffer.
  • score/inline/rtems/score/address.inl, score/src/coremsgsubmit.c, score/src/objectallocate.c, score/src/objectfree.c: Remove warnings.
  • Property mode set to 100644
File size: 1.5 KB
Line 
1/*
2 *  COPYRIGHT (c) 2009 Chris Johns <chrisj@rtems.org>
3 *
4 *  The license and distribution terms for this file may be
5 *  found in the file LICENSE in this distribution or at
6 *  http://www.rtems.com/license/LICENSE.
7 *
8 *  $Id$
9 */
10/*
11 * The statvfs as defined by the SUS:
12 *    http://www.opengroup.org/onlinepubs/009695399/basedefs/sys/statvfs.h.html
13 */
14
15#ifndef _SYS_STATVFS_H_
16#define _SYS_STATVFS_H_
17
18#include <sys/cdefs.h>
19#include <stdint.h>
20
21typedef uint64_t fsblkcnt_t;
22typedef uint32_t fsfilcnt_t;
23
24struct statvfs
25{
26  unsigned long f_bsize;   /**< File system block size. */
27  unsigned long f_frsize;  /**< Fundamental file system block size. */
28  fsblkcnt_t    f_blocks;  /**< Total number of blocks on file system in units
29                            * of f_frsize. */
30  fsblkcnt_t    f_bfree;   /**< Total number of free blocks. */
31  fsblkcnt_t    f_bavail;  /**< Number of free blocks available to
32                            * non-privileged process. */
33  fsfilcnt_t    f_files;   /**< Total number of file serial numbers. */
34  fsfilcnt_t    f_ffree;   /**< Total number of free file serial numbers. */
35  fsfilcnt_t    f_favail;  /**< Number of file serial numbers available to
36                            * non-privileged process. */
37  unsigned long f_fsid;    /**< File system ID. */
38  unsigned long f_flag;    /**< Bit mask of f_flag values. */
39  unsigned long f_namemax; /**< Maximum filename length. */
40};
41
42int statvfs(const char *, struct statvfs *);
43int fstatvfs(int, struct statvfs *);
44
45#endif
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