|
Packit Service |
407539 |
/* fsusage.c -- return space usage of mounted filesystems
|
|
Packit Service |
407539 |
Copyright (C) 1991, 1992, 1996, 1998, 1999, 2002, 2003 Free Software
|
|
Packit Service |
407539 |
Foundation, Inc.
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
This program is free software; you can redistribute it and/or modify
|
|
Packit Service |
407539 |
it under the terms of the GNU General Public License as published by
|
|
Packit Service |
407539 |
the Free Software Foundation; either version 2, or (at your option)
|
|
Packit Service |
407539 |
any later version.
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
This program is distributed in the hope that it will be useful,
|
|
Packit Service |
407539 |
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
Packit Service |
407539 |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
Packit Service |
407539 |
GNU General Public License for more details.
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
You should have received a copy of the GNU General Public License
|
|
Packit Service |
407539 |
along with this program; if not, write to the Free Software Foundation,
|
|
Packit Service |
407539 |
Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
#ifdef HAVE_CONFIG_H
|
|
Packit Service |
407539 |
# include <config.h>
|
|
Packit Service |
407539 |
#endif
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
#include <glibtop.h>
|
|
Packit Service |
407539 |
#include <glibtop/fsusage.h>
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
#include <sys/types.h>
|
|
Packit Service |
407539 |
#include <sys/stat.h>
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
#ifdef HAVE_LIMITS_H
|
|
Packit Service |
407539 |
# include <limits.h>
|
|
Packit Service |
407539 |
#endif
|
|
Packit Service |
407539 |
#ifndef CHAR_BIT
|
|
Packit Service |
407539 |
# define CHAR_BIT 8
|
|
Packit Service |
407539 |
#endif
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
#ifdef HAVE_SYS_PARAM_H
|
|
Packit Service |
407539 |
# include <sys/param.h>
|
|
Packit Service |
407539 |
#endif
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
#ifdef HAVE_SYS_MOUNT_H
|
|
Packit Service |
407539 |
# include <sys/mount.h>
|
|
Packit Service |
407539 |
#endif
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
#ifdef HAVE_SYS_VFS_H
|
|
Packit Service |
407539 |
# include <sys/vfs.h>
|
|
Packit Service |
407539 |
#endif
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
#ifdef HAVE_SYS_FS_S5PARAM_H /* Fujitsu UXP/V */
|
|
Packit Service |
407539 |
# include <sys/fs/s5param.h>
|
|
Packit Service |
407539 |
#endif
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
#if defined HAVE_SYS_FILSYS_H && !defined _CRAY
|
|
Packit Service |
407539 |
# include <sys/filsys.h> /* SVR2 */
|
|
Packit Service |
407539 |
#endif
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
#ifdef HAVE_FCNTL_H
|
|
Packit Service |
407539 |
# include <fcntl.h>
|
|
Packit Service |
407539 |
#endif
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
#ifdef HAVE_SYS_STATFS_H
|
|
Packit Service |
407539 |
# include <sys/statfs.h>
|
|
Packit Service |
407539 |
#endif
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
#ifdef HAVE_DUSTAT_H /* AIX PS/2 */
|
|
Packit Service |
407539 |
# include <sys/dustat.h>
|
|
Packit Service |
407539 |
#endif
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
#ifdef HAVE_SYS_STATVFS_H /* SVR4 */
|
|
Packit Service |
407539 |
# include <sys/statvfs.h>
|
|
Packit Service |
407539 |
int statvfs (const char *path, struct statvfs *buf);
|
|
Packit Service |
407539 |
#endif
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
/* Many space usage primitives use all 1 bits to denote a value that is
|
|
Packit Service |
407539 |
not applicable or unknown. Propagate this information by returning
|
|
Packit Service |
407539 |
a guint64 value that is all 1 bits if X is all 1 bits, even if X
|
|
Packit Service |
407539 |
is unsigned and narrower than guint64. */
|
|
Packit Service |
407539 |
#define PROPAGATE_ALL_ONES(x) \
|
|
Packit Service |
407539 |
((sizeof (x) < sizeof (guint64) \
|
|
Packit Service |
407539 |
&& (~ (x) == (sizeof (x) < sizeof (int) \
|
|
Packit Service |
407539 |
? - (1 << (sizeof (x) * CHAR_BIT)) \
|
|
Packit Service |
407539 |
: 0))) \
|
|
Packit Service |
407539 |
? G_MAXUINT64 : (x))
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
/* Extract the top bit of X as an guint64 value. */
|
|
Packit Service |
407539 |
#define EXTRACT_TOP_BIT(x) ((x) \
|
|
Packit Service |
407539 |
& ((guint64) 1 << (sizeof (x) * CHAR_BIT - 1)))
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
/* If a value is negative, many space usage primitives store it into an
|
|
Packit Service |
407539 |
integer variable by assignment, even if the variable's type is unsigned.
|
|
Packit Service |
407539 |
So, if a space usage variable X's top bit is set, convert X to the
|
|
Packit Service |
407539 |
guint64 value V such that (- (guint64) V) is the negative of
|
|
Packit Service |
407539 |
the original value. If X's top bit is clear, just yield X.
|
|
Packit Service |
407539 |
Use PROPAGATE_TOP_BIT if the original value might be negative;
|
|
Packit Service |
407539 |
otherwise, use PROPAGATE_ALL_ONES. */
|
|
Packit Service |
407539 |
#define PROPAGATE_TOP_BIT(x) ((x) | ~ (EXTRACT_TOP_BIT (x) - 1))
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
/* Fill in the fields of FSP with information about space usage for
|
|
Packit Service |
407539 |
the filesystem on which PATH resides.
|
|
Packit Service |
407539 |
DISK is the device on which PATH is mounted, for space-getting
|
|
Packit Service |
407539 |
methods that need to know it.
|
|
Packit Service |
407539 |
Return 0 if successful, -1 if not. When returning -1, ensure that
|
|
Packit Service |
407539 |
ERRNO is either a system error value, or zero if DISK is NULL
|
|
Packit Service |
407539 |
on a system that requires a non-NULL value. */
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
static const unsigned long _glibtop_sysdeps_fsusage =
|
|
Packit Service |
407539 |
(1L << GLIBTOP_FSUSAGE_BLOCKS) + (1L << GLIBTOP_FSUSAGE_BFREE)
|
|
Packit Service |
407539 |
+ (1L << GLIBTOP_FSUSAGE_BAVAIL) + (1L << GLIBTOP_FSUSAGE_FILES)
|
|
Packit Service |
407539 |
+ (1L << GLIBTOP_FSUSAGE_FFREE) + (1L << GLIBTOP_FSUSAGE_BLOCK_SIZE);
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
/*
|
|
Packit Service |
407539 |
* _glibtop_get_fsusage_read_write
|
|
Packit Service |
407539 |
* New function to retrieve total read and write
|
|
Packit Service |
407539 |
*
|
|
Packit Service |
407539 |
* Each arch should have its own function()
|
|
Packit Service |
407539 |
* and the proper #define. This is more readable than one single
|
|
Packit Service |
407539 |
* function full of #something where everything is mixed.
|
|
Packit Service |
407539 |
* These functions are private.
|
|
Packit Service |
407539 |
*
|
|
Packit Service |
407539 |
* void _glibtop_<arch>_get_fsusage_read_write(glibtop*server,
|
|
Packit Service |
407539 |
* glibtop_fsusage *buf,
|
|
Packit Service |
407539 |
* const char *path);
|
|
Packit Service |
407539 |
*
|
|
Packit Service |
407539 |
* TODO: split this file properly, is possible
|
|
Packit Service |
407539 |
*/
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
#ifdef linux
|
|
Packit Service |
407539 |
void
|
|
Packit Service |
407539 |
_glibtop_linux_get_fsusage_read_write(glibtop *server,
|
|
Packit Service |
407539 |
glibtop_fsusage *buf,
|
|
Packit Service |
407539 |
const char *path);
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
static inline void
|
|
Packit Service |
407539 |
_glibtop_get_fsusage_read_write(glibtop *server,
|
|
Packit Service |
407539 |
glibtop_fsusage *buf,
|
|
Packit Service |
407539 |
const char *path)
|
|
Packit Service |
407539 |
{
|
|
Packit Service |
407539 |
_glibtop_linux_get_fsusage_read_write(server, buf, path);
|
|
Packit Service |
407539 |
}
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
#elif defined(__FreeBSD__)
|
|
Packit Service |
407539 |
void
|
|
Packit Service |
407539 |
_glibtop_freebsd_get_fsusage_read_write(glibtop *server,
|
|
Packit Service |
407539 |
glibtop_fsusage *buf,
|
|
Packit Service |
407539 |
const char *path);
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
#define _glibtop_get_fsusage_read_write(S, B, P) \
|
|
Packit Service |
407539 |
_glibtop_freebsd_get_fsusage_read_write(S, B, P)
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
#elif defined(__OpenBSD__)
|
|
Packit Service |
407539 |
void
|
|
Packit Service |
407539 |
_glibtop_openbsd_get_fsusage_read_write(glibtop *server,
|
|
Packit Service |
407539 |
glibtop_fsusage *buf,
|
|
Packit Service |
407539 |
const char *path);
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
#define _glibtop_get_fsusage_read_write(S, B, P) \
|
|
Packit Service |
407539 |
_glibtop_openbsd_get_fsusage_read_write(S, B, P)
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
#else /* default fallback */
|
|
Packit Service |
407539 |
#warning glibtop_get_fsusage .read .write are not implemented.
|
|
Packit Service |
407539 |
static inline void
|
|
Packit Service |
407539 |
_glibtop_get_fsusage_read_write(glibtop *server,
|
|
Packit Service |
407539 |
glibtop_fsusage *buf,
|
|
Packit Service |
407539 |
const char *path)
|
|
Packit Service |
407539 |
{
|
|
Packit Service |
407539 |
/* NOOP */
|
|
Packit Service |
407539 |
}
|
|
Packit Service |
407539 |
#endif /* default fallback */
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
/* end _glibtop_get_fsusage_read_write */
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
void
|
|
Packit Service |
407539 |
glibtop_get_fsusage_s (glibtop *server, glibtop_fsusage *buf,
|
|
Packit Service |
407539 |
const char *path)
|
|
Packit Service |
407539 |
{
|
|
Packit Service |
407539 |
#if defined STAT_STATFS3_OSF1
|
|
Packit Service |
407539 |
struct statfs fsd;
|
|
Packit Service |
407539 |
#elif defined STAT_STATFS2_FS_DATA /* Ultrix */
|
|
Packit Service |
407539 |
struct fs_data fsd;
|
|
Packit Service |
407539 |
#elif defined STAT_STATFS2_BSIZE /* 4.3BSD, SunOS 4, HP-UX, AIX */
|
|
Packit Service |
407539 |
struct statfs fsd;
|
|
Packit Service |
407539 |
#elif defined STAT_STATVFS /* SVR4 */
|
|
Packit Service |
407539 |
struct statvfs fsd;
|
|
Packit Service |
407539 |
#elif defined STAT_STATFS2_FSIZE /* 4.4BSD */
|
|
Packit Service |
407539 |
struct statfs fsd;
|
|
Packit Service |
407539 |
#elif defined STAT_STATFS4 /* SVR3, Dynix, Irix, AIX */
|
|
Packit Service |
407539 |
struct stafs fsd;
|
|
Packit Service |
407539 |
#endif
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
glibtop_init_r (&server, 0, 0);
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
memset (buf, 0, sizeof (glibtop_fsusage));
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
#ifdef STAT_STATFS3_OSF1
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
if (statfs (path, &fsd, sizeof (struct statfs)) != 0)
|
|
Packit Service |
407539 |
return;
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
buf->block_size = PROPAGATE_ALL_ONES (fsd.f_fsize);
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
#endif /* STAT_STATFS3_OSF1 */
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
#ifdef STAT_STATFS2_FS_DATA /* Ultrix */
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
if (statfs (path, &fsd) != 1)
|
|
Packit Service |
407539 |
return;
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
buf->block_size = 1024;
|
|
Packit Service |
407539 |
buf->blocks = PROPAGATE_ALL_ONES (fsd.fd_req.btot);
|
|
Packit Service |
407539 |
buf->bfree = PROPAGATE_ALL_ONES (fsd.fd_req.bfree);
|
|
Packit Service |
407539 |
buf->bavail = PROPAGATE_TOP_BIT (fsd.fd_req.bfreen);
|
|
Packit Service |
407539 |
/* buf->bavail_top_bit_set = EXTRACT_TOP_BIT (fsd.fd_req.bfreen) != 0; */
|
|
Packit Service |
407539 |
buf->files = PROPAGATE_ALL_ONES (fsd.fd_req.gtot);
|
|
Packit Service |
407539 |
buf->ffree = PROPAGATE_ALL_ONES (fsd.fd_req.gfree);
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
#endif /* STAT_STATFS2_FS_DATA */
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
#ifdef STAT_STATFS2_BSIZE /* 4.3BSD, SunOS 4, HP-UX, AIX */
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
if (statfs (path, &fsd) < 0)
|
|
Packit Service |
407539 |
return;
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
buf->block_size = PROPAGATE_ALL_ONES (fsd.f_bsize);
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
# ifdef STATFS_TRUNCATES_BLOCK_COUNTS
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
/* In SunOS 4.1.2, 4.1.3, and 4.1.3_U1, the block counts in the
|
|
Packit Service |
407539 |
struct statfs are truncated to 2GB. These conditions detect that
|
|
Packit Service |
407539 |
truncation, presumably without botching the 4.1.1 case, in which
|
|
Packit Service |
407539 |
the values are not truncated. The correct counts are stored in
|
|
Packit Service |
407539 |
undocumented spare fields. */
|
|
Packit Service |
407539 |
if (fsd.f_blocks == 0x7fffffff / fsd.f_bsize && fsd.f_spare[0] > 0)
|
|
Packit Service |
407539 |
{
|
|
Packit Service |
407539 |
fsd.f_blocks = fsd.f_spare[0];
|
|
Packit Service |
407539 |
fsd.f_bfree = fsd.f_spare[1];
|
|
Packit Service |
407539 |
fsd.f_bavail = fsd.f_spare[2];
|
|
Packit Service |
407539 |
}
|
|
Packit Service |
407539 |
# endif /* STATFS_TRUNCATES_BLOCK_COUNTS */
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
#endif /* STAT_STATFS2_BSIZE */
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
#ifdef STAT_STATFS2_FSIZE /* 4.4BSD */
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
if (statfs (path, &fsd) < 0)
|
|
Packit Service |
407539 |
return;
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
buf->block_size = PROPAGATE_ALL_ONES (fsd.f_fsize);
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
#endif /* STAT_STATFS2_FSIZE */
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
#ifdef STAT_STATFS4 /* SVR3, Dynix, Irix, AIX */
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
# if !_AIX && !defined _SEQUENT_ && !defined DOLPHIN
|
|
Packit Service |
407539 |
# define f_bavail f_bfree
|
|
Packit Service |
407539 |
# endif
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
if (statfs (path, &fsd, sizeof fsd, 0) < 0)
|
|
Packit Service |
407539 |
return;
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
/* Empirically, the block counts on most SVR3 and SVR3-derived
|
|
Packit Service |
407539 |
systems seem to always be in terms of 512-byte blocks,
|
|
Packit Service |
407539 |
no matter what value f_bsize has. */
|
|
Packit Service |
407539 |
# if _AIX || defined _CRAY
|
|
Packit Service |
407539 |
buf->block_size = PROPAGATE_ALL_ONES (fsd.f_bsize);
|
|
Packit Service |
407539 |
# else
|
|
Packit Service |
407539 |
buf->block_size = 512;
|
|
Packit Service |
407539 |
# endif
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
#endif /* STAT_STATFS4 */
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
#ifdef STAT_STATVFS /* SVR4 */
|
|
Packit Service |
407539 |
/* Linux, Solaris */
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
if (statvfs (path, &fsd) < 0)
|
|
Packit Service |
407539 |
return;
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
#if (defined(sun) || defined(__sun)) && (defined(__SVR4) || defined(__svr4__)) \
|
|
Packit Service |
407539 |
|| defined(__FreeBSD__) || defined(__OpenBSD__)
|
|
Packit Service |
407539 |
/* Solaris but not SunOS and FreeBSD */
|
|
Packit Service |
407539 |
buf->block_size = fsd.f_frsize;
|
|
Packit Service |
407539 |
#else
|
|
Packit Service |
407539 |
/* else, including Linux */
|
|
Packit Service |
407539 |
buf->block_size = fsd.f_bsize;
|
|
Packit Service |
407539 |
#endif
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
#endif /* STAT_STATVFS */
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
#if !defined STAT_STATFS2_FS_DATA && !defined STAT_READ_FILSYS
|
|
Packit Service |
407539 |
/* !Ultrix && !SVR2 */
|
|
Packit Service |
407539 |
/* Linux */
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
buf->blocks = fsd.f_blocks;
|
|
Packit Service |
407539 |
buf->bfree = fsd.f_bfree;
|
|
Packit Service |
407539 |
buf->bavail = (fsd.f_bavail > fsd.f_bfree) ? 0 : fsd.f_bavail;
|
|
Packit Service |
407539 |
buf->files = fsd.f_files;
|
|
Packit Service |
407539 |
buf->ffree = fsd.f_ffree;
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
#endif /* not STAT_STATFS2_FS_DATA && not STAT_READ_FILSYS */
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
buf->flags = _glibtop_sysdeps_fsusage;
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
/* setting additional flags is delegated */
|
|
Packit Service |
407539 |
_glibtop_get_fsusage_read_write(server, buf, path);
|
|
Packit Service |
407539 |
}
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
#if defined _AIX && defined _I386
|
|
Packit Service |
407539 |
/* AIX PS/2 does not supply statfs. */
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
static int
|
|
Packit Service |
407539 |
statfs (const char *path, struct statfs *fsb)
|
|
Packit Service |
407539 |
{
|
|
Packit Service |
407539 |
struct stat stats;
|
|
Packit Service |
407539 |
struct dustat fsd;
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
if (stat (path, &stats))
|
|
Packit Service |
407539 |
return -1;
|
|
Packit Service |
407539 |
if (dustat (stats.st_dev, 0, &fsd, sizeof (fsd)))
|
|
Packit Service |
407539 |
return -1;
|
|
Packit Service |
407539 |
fsb->f_type = 0;
|
|
Packit Service |
407539 |
fsb->f_bsize = fsd.du_bsize;
|
|
Packit Service |
407539 |
fsb->f_blocks = fsd.du_fsize - fsd.du_isize;
|
|
Packit Service |
407539 |
fsb->f_bfree = fsd.du_tfree;
|
|
Packit Service |
407539 |
fsb->f_bavail = fsd.du_tfree;
|
|
Packit Service |
407539 |
fsb->f_files = (fsd.du_isize - 2) * fsd.du_inopb;
|
|
Packit Service |
407539 |
fsb->f_ffree = fsd.du_tinode;
|
|
Packit Service |
407539 |
fsb->f_fsid.val[0] = fsd.du_site;
|
|
Packit Service |
407539 |
fsb->f_fsid.val[1] = fsd.du_pckno;
|
|
Packit Service |
407539 |
return 0;
|
|
Packit Service |
407539 |
}
|
|
Packit Service |
407539 |
|
|
Packit Service |
407539 |
#endif /* _AIX && _I386 */
|