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* src/fsusage.h: Resurrect.
* src/fsusage.h: Likewise.
This commit is contained in:
Pavel Tsekov
parent
cd71c4159c
commit
393d1f5b43
@ -1,3 +1,8 @@
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2006-12-21 Pavel Tsekov <ptsekov@gmx.net>
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* fsusage.h: Resurrect.
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* fsusage.c: Likewise.
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2006-12-10 Pavel Tsekov <ptsekov@gmx.net>
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* view.c (regexp_search): Keep the search string in a global
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189
src/fsusage.c
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189
src/fsusage.c
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/* fsusage.c -- return space usage of mounted filesystems
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Copyright (C) 1991, 1992 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <sys/types.h>
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#ifdef HAVE_SYS_PARAM_H
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#include <sys/param.h>
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#endif
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#ifdef HAVE_SYS_MOUNT_H
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#include <sys/mount.h>
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#endif
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#ifdef HAVE_SYS_VFS_H
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#include <sys/vfs.h>
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#endif
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#ifdef HAVE_SYS_FILSYS_H
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#include <sys/filsys.h> /* SVR2. */
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#endif
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#include <stdlib.h>
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#ifdef HAVE_SYS_STATFS_H
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#include <sys/statfs.h>
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#endif
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#ifdef HAVE_DUSTAT_H /* AIX PS/2. */
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#include <sys/dustat.h>
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#endif
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#ifdef HAVE_SYS_STATVFS_H /* SVR4. */
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#include <sys/statvfs.h>
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#endif
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#include "global.h"
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#include "fsusage.h"
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#ifdef HAVE_INFOMOUNT
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/* Return the number of TOSIZE-byte blocks used by
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BLOCKS FROMSIZE-byte blocks, rounding away from zero.
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TOSIZE must be positive. Return -1 if FROMSIZE is not positive. */
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static long
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fs_adjust_blocks (long blocks, int fromsize, int tosize)
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{
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if (tosize <= 0)
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abort ();
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if (fromsize <= 0)
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return -1;
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if (fromsize == tosize) /* E.g., from 512 to 512. */
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return blocks;
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else if (fromsize > tosize) /* E.g., from 2048 to 512. */
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return blocks * (fromsize / tosize);
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else /* E.g., from 256 to 512. */
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return (blocks + (blocks < 0 ? -1 : 1)) / (tosize / fromsize);
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}
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#if defined(_AIX) && defined(_I386)
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/* AIX PS/2 does not supply statfs. */
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static int aix_statfs (char *path, struct statfs *fsb)
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{
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struct stat stats;
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struct dustat fsd;
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if (stat (path, &stats))
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return -1;
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if (dustat (stats.st_dev, 0, &fsd, sizeof (fsd)))
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return -1;
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fsb->f_type = 0;
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fsb->f_bsize = fsd.du_bsize;
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fsb->f_blocks = fsd.du_fsize - fsd.du_isize;
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fsb->f_bfree = fsd.du_tfree;
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fsb->f_bavail = fsd.du_tfree;
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fsb->f_files = (fsd.du_isize - 2) * fsd.du_inopb;
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fsb->f_ffree = fsd.du_tinode;
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fsb->f_fsid.val[0] = fsd.du_site;
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fsb->f_fsid.val[1] = fsd.du_pckno;
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return 0;
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}
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#define statfs(path,fsb) aix_statfs(path,fsb)
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#endif /* _AIX && _I386 */
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/* Fill in the fields of FSP with information about space usage for
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the filesystem on which PATH resides.
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Return 0 if successful, -1 if not. */
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int get_fs_usage (char *path, struct fs_usage *fsp)
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{
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#ifdef STAT_STATFS3_OSF1
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struct statfs fsd;
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if (statfs (path, &fsd, sizeof (struct statfs)) != 0)
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return -1;
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#define CONVERT_BLOCKS(b) fs_adjust_blocks ((b), fsd.f_fsize, 512)
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#endif /* STAT_STATFS3_OSF1 */
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#ifdef STAT_STATFS2_FS_DATA /* Ultrix. */
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struct fs_data fsd;
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if (statfs (path, &fsd) != 1)
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return -1;
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#define CONVERT_BLOCKS(b) fs_adjust_blocks ((b), 1024, 512)
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fsp->fsu_blocks = CONVERT_BLOCKS (fsd.fd_req.btot);
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fsp->fsu_bfree = CONVERT_BLOCKS (fsd.fd_req.bfree);
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fsp->fsu_bavail = CONVERT_BLOCKS (fsd.fd_req.bfreen);
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fsp->fsu_files = fsd.fd_req.gtot;
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fsp->fsu_ffree = fsd.fd_req.gfree;
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#endif
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#ifdef STAT_STATFS2_BSIZE /* 4.3BSD, SunOS 4, HP-UX, AIX. */
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struct statfs fsd;
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if (statfs (path, &fsd) < 0)
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return -1;
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#define CONVERT_BLOCKS(b) fs_adjust_blocks ((b), fsd.f_bsize, 512)
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#endif
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#ifdef STAT_STATFS2_FSIZE /* 4.4BSD. */
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struct statfs fsd;
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if (statfs (path, &fsd) < 0)
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return -1;
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#define CONVERT_BLOCKS(b) fs_adjust_blocks ((b), fsd.f_fsize, 512)
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#endif
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#ifdef STAT_STATFS4 /* SVR3, Dynix, Irix, AIX. */
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struct statfs fsd;
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if (statfs (path, &fsd, sizeof fsd, 0) < 0)
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return -1;
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/* Empirically, the block counts on most SVR3 and SVR3-derived
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systems seem to always be in terms of 512-byte blocks,
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no matter what value f_bsize has. */
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#if _AIX
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#define CONVERT_BLOCKS(b) fs_adjust_blocks ((b), fsd.f_bsize, 512)
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#else
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#define CONVERT_BLOCKS(b) (b)
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#ifndef _SEQUENT_ /* _SEQUENT_ is DYNIX/ptx. */
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#ifndef DOLPHIN /* DOLPHIN 3.8.alfa/7.18 has f_bavail */
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#define f_bavail f_bfree
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#endif
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#endif
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#endif
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#endif
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#ifdef STAT_STATVFS /* SVR4. */
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struct statvfs fsd;
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if (statvfs (path, &fsd) < 0)
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return -1;
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/* f_frsize isn't guaranteed to be supported. */
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#define CONVERT_BLOCKS(b) \
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fs_adjust_blocks ((b), fsd.f_frsize ? fsd.f_frsize : fsd.f_bsize, 512)
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#endif
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#if defined(CONVERT_BLOCKS) && !defined(STAT_STATFS2_FS_DATA) && !defined(STAT_READ_FILSYS) /* !Ultrix && !SVR2. */
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fsp->fsu_blocks = CONVERT_BLOCKS (fsd.f_blocks);
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fsp->fsu_bfree = CONVERT_BLOCKS (fsd.f_bfree);
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fsp->fsu_bavail = CONVERT_BLOCKS (fsd.f_bavail);
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fsp->fsu_files = fsd.f_files;
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fsp->fsu_ffree = fsd.f_ffree;
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#endif
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return 0;
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}
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#endif /* HAVE_INFOMOUNT */
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33
src/fsusage.h
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33
src/fsusage.h
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@ -0,0 +1,33 @@
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/* fsusage.h -- declarations for filesystem space usage info
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Copyright (C) 1991, 1992 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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#ifndef __FSUSAGE_H
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#define __FSUSAGE_H
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/* Space usage statistics for a filesystem. Blocks are 512-byte. */
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struct fs_usage
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{
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long fsu_blocks; /* Total blocks. */
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long fsu_bfree; /* Free blocks available to superuser. */
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long fsu_bavail; /* Free blocks available to non-superuser. */
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long fsu_files; /* Total file nodes. */
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long fsu_ffree; /* Free file nodes. */
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};
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extern int get_fs_usage (char *path, struct fs_usage *fsp);
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#endif
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