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/* |
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* i-scream central monitoring system |
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* http://www.i-scream.org.uk |
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* Copyright (C) 2000-2002 i-scream |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License |
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* as published by the Free Software Foundation; either version 2 |
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* of the License, or (at your option) any later version. |
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* |
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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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* |
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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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*/ |
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|
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#ifdef HAVE_CONFIG_H |
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#include "config.h" |
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#endif |
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|
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#include <stdlib.h> |
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#include <string.h> |
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#include "statgrab.h" |
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|
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#ifdef SOLARIS |
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#include <stdio.h> |
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#include <sys/mnttab.h> |
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#include <sys/statvfs.h> |
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#include <kstat.h> |
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#define VALID_FS_TYPES {"ufs", "tmpfs"} |
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#endif |
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|
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#ifdef LINUX |
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#include <stdio.h> |
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#include <sys/vfs.h> |
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#include <mntent.h> |
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#include "tools.h" |
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#define VALID_FS_TYPES {"ext2", "ext3", "xfs", "reiserfs", "vfat", "tmpfs"} |
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#endif |
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|
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#ifdef FREEBSD |
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#include <sys/param.h> |
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#include <sys/ucred.h> |
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#include <sys/mount.h> |
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#define VALID_FS_TYPES {"ufs", "mfs"} |
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#endif |
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#define START_VAL 1 |
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|
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char *copy_string(char *orig_ptr, const char *newtext){ |
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|
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/* Maybe free if not NULL, and strdup rather than realloc and strcpy? */ |
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orig_ptr=realloc(orig_ptr, (1+strlen(newtext))); |
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if(orig_ptr==NULL){ |
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return NULL; |
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} |
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strcpy(orig_ptr, newtext); |
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|
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return orig_ptr; |
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} |
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|
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|
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void init_disk_stat(int start, int end, disk_stat_t *disk_stats){ |
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|
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for(disk_stats+=start; start<=end; start++){ |
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disk_stats->device_name=NULL; |
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disk_stats->fs_type=NULL; |
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disk_stats->mnt_point=NULL; |
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|
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disk_stats++; |
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} |
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} |
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|
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disk_stat_t *get_disk_stats(int *entries){ |
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|
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static disk_stat_t *disk_stats; |
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static int watermark=-1; |
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|
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char *fs_types[] = VALID_FS_TYPES; |
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int x, valid_type; |
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int num_disks=0; |
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#if defined(LINUX) || defined (SOLARIS) |
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FILE *f; |
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#endif |
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|
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disk_stat_t *disk_ptr; |
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|
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#ifdef SOLARIS |
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struct mnttab mp; |
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struct statvfs fs; |
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#endif |
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#ifdef LINUX |
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struct mntent *mp; |
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struct statfs fs; |
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#endif |
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#ifdef FREEBSD |
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int nummnt; |
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struct statfs *mp; |
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#endif |
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|
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if(watermark==-1){ |
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disk_stats=malloc(START_VAL * sizeof(disk_stat_t)); |
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if(disk_stats==NULL){ |
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return NULL; |
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} |
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watermark=START_VAL; |
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init_disk_stat(0, watermark-1, disk_stats); |
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} |
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#ifdef FREEBSD |
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nummnt=getmntinfo(&mp , MNT_LOCAL); |
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if (nummnt<=0){ |
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return NULL; |
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} |
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for(;nummnt--; mp++){ |
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valid_type=0; |
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for(x=0;x<((sizeof(fs_types))/(sizeof(char*)));x++){ |
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if(strcmp(mp->f_fstypename, fs_types[x]) ==0){ |
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valid_type=1; |
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break; |
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} |
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} |
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#endif |
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|
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#ifdef LINUX |
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if ((f=setmntent("/etc/mtab", "r" ))==NULL){ |
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return NULL; |
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} |
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|
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while((mp=getmntent(f))){ |
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if((statfs(mp->mnt_dir, &fs)) !=0){ |
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continue; |
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} |
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|
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valid_type=0; |
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for(x=0;x<((sizeof(fs_types))/(sizeof(char*)));x++){ |
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if(strcmp(mp->mnt_type, fs_types[x]) ==0){ |
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valid_type=1; |
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break; |
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} |
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} |
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#endif |
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|
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#ifdef SOLARIS |
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if ((f=fopen("/etc/mnttab", "r" ))==NULL){ |
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return NULL; |
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} |
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while((getmntent(f, &mp)) == 0){ |
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if ((statvfs(mp.mnt_mountp, &fs)) !=0){ |
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continue; |
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} |
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valid_type=0; |
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for(x=0;x<((sizeof(fs_types))/(sizeof(char*)));x++){ |
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if(strcmp(mp.mnt_fstype, fs_types[x]) ==0){ |
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valid_type=1; |
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break; |
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} |
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} |
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#endif |
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|
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if(valid_type){ |
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if(num_disks>watermark-1){ |
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disk_ptr=disk_stats; |
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if((disk_stats=realloc(disk_stats, (watermark*2 * sizeof(disk_stat_t))))==NULL){ |
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disk_stats=disk_ptr; |
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return NULL; |
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} |
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|
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watermark=watermark*2; |
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init_disk_stat(num_disks, watermark-1, disk_stats); |
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} |
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|
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disk_ptr=disk_stats+num_disks; |
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#ifdef FREEBSD |
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if((disk_ptr->device_name=copy_string(disk_ptr->device_name, mp->f_mntfromname))==NULL){ |
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return NULL; |
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} |
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|
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if((disk_ptr->fs_type=copy_string(disk_ptr->fs_type, mp->f_fstypename))==NULL){ |
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return NULL; |
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} |
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|
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if((disk_ptr->mnt_point=copy_string(disk_ptr->mnt_point, mp->f_mntonname))==NULL){ |
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return NULL; |
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} |
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|
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disk_ptr->size = (long long)mp->f_bsize * (long long) mp->f_blocks; |
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disk_ptr->avail = (long long)mp->f_bsize * (long long) mp->f_bavail; |
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disk_ptr->used = (disk_ptr->size) - ((long long)mp->f_bsize * (long long)mp->f_bfree); |
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|
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disk_ptr->total_inodes=(long long)mp->f_files; |
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disk_ptr->free_inodes=(long long)mp->f_ffree; |
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/* Freebsd doesn't have a "available" inodes */ |
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disk_ptr->used_inodes=disk_ptr->total_inodes-disk_ptr->free_inodes; |
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#endif |
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#ifdef LINUX |
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if((disk_ptr->device_name=copy_string(disk_ptr->device_name, mp->mnt_fsname))==NULL){ |
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return NULL; |
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} |
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|
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if((disk_ptr->fs_type=copy_string(disk_ptr->fs_type, mp->mnt_type))==NULL){ |
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return NULL; |
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} |
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|
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if((disk_ptr->mnt_point=copy_string(disk_ptr->mnt_point, mp->mnt_dir))==NULL){ |
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return NULL; |
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} |
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disk_ptr->size = (long long)fs.f_bsize * (long long)fs.f_blocks; |
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disk_ptr->avail = (long long)fs.f_bsize * (long long)fs.f_bavail; |
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disk_ptr->used = (disk_ptr->size) - ((long long)fs.f_bsize * (long long)fs.f_bfree); |
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|
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disk_ptr->total_inodes=(long long)fs.f_files; |
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disk_ptr->free_inodes=(long long)fs.f_ffree; |
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/* Linux doesn't have a "available" inodes */ |
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disk_ptr->used_inodes=disk_ptr->total_inodes-disk_ptr->free_inodes; |
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#endif |
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|
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#ifdef SOLARIS |
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/* Memory leak in event of realloc failing */ |
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/* Maybe make this char[bigenough] and do strncpy's and put a null in the end? |
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* Downside is its a bit hungry for a lot of mounts, as MNT_MAX_SIZE would prob |
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* be upwards of a k each |
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*/ |
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if((disk_ptr->device_name=copy_string(disk_ptr->device_name, mp.mnt_special))==NULL){ |
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return NULL; |
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} |
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|
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if((disk_ptr->fs_type=copy_string(disk_ptr->fs_type, mp.mnt_fstype))==NULL){ |
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return NULL; |
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} |
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|
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if((disk_ptr->mnt_point=copy_string(disk_ptr->mnt_point, mp.mnt_mountp))==NULL){ |
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return NULL; |
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} |
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|
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disk_ptr->size = (long long)fs.f_frsize * (long long)fs.f_blocks; |
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disk_ptr->avail = (long long)fs.f_frsize * (long long)fs.f_bavail; |
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disk_ptr->used = (disk_ptr->size) - ((long long)fs.f_frsize * (long long)fs.f_bfree); |
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|
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disk_ptr->total_inodes=(long long)fs.f_files; |
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disk_ptr->used_inodes=disk_ptr->total_inodes - (long long)fs.f_ffree; |
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disk_ptr->free_inodes=(long long)fs.f_favail; |
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#endif |
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num_disks++; |
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} |
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} |
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|
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*entries=num_disks; |
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|
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/* If this fails, there is very little i can do about it, so i'll ignore it :) */ |
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#if defined(LINUX) || defined(SOLARIS) |
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fclose(f); |
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#endif |
256 |
|
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return disk_stats; |
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|
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} |
260 |
void diskio_stat_init(int start, int end, diskio_stat_t *diskio_stats){ |
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|
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for(diskio_stats+=start; start<end; start++){ |
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diskio_stats->disk_name=NULL; |
264 |
|
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diskio_stats++; |
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} |
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} |
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|
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diskio_stat_t *diskio_stat_malloc(int needed_entries, int *cur_entries, diskio_stat_t *diskio_stats){ |
270 |
|
271 |
if(diskio_stats==NULL){ |
272 |
|
273 |
if((diskio_stats=malloc(needed_entries * sizeof(diskio_stat_t)))==NULL){ |
274 |
return NULL; |
275 |
} |
276 |
diskio_stat_init(0, needed_entries, diskio_stats); |
277 |
*cur_entries=needed_entries; |
278 |
|
279 |
return diskio_stats; |
280 |
} |
281 |
|
282 |
|
283 |
if(*cur_entries<needed_entries){ |
284 |
diskio_stats=realloc(diskio_stats, (sizeof(diskio_stat_t)*needed_entries)); |
285 |
if(diskio_stats==NULL){ |
286 |
return NULL; |
287 |
} |
288 |
diskio_stat_init(*cur_entries, needed_entries, diskio_stats); |
289 |
*cur_entries=needed_entries; |
290 |
} |
291 |
|
292 |
return diskio_stats; |
293 |
} |
294 |
|
295 |
static diskio_stat_t *diskio_stats=NULL; |
296 |
static int num_diskio=0; |
297 |
|
298 |
diskio_stat_t *get_diskio_stats(int *entries){ |
299 |
|
300 |
static int sizeof_diskio_stats=0; |
301 |
diskio_stat_t *diskio_stats_ptr; |
302 |
|
303 |
#ifdef SOLARIS |
304 |
kstat_ctl_t *kc; |
305 |
kstat_t *ksp; |
306 |
kstat_io_t kios; |
307 |
#endif |
308 |
#ifdef LINUX |
309 |
FILE *f; |
310 |
char *line_ptr; |
311 |
int major, minor; |
312 |
char dev_letter; |
313 |
#endif |
314 |
num_diskio=0; |
315 |
|
316 |
#ifdef SOLARIS |
317 |
if ((kc = kstat_open()) == NULL) { |
318 |
return NULL; |
319 |
} |
320 |
|
321 |
for (ksp = kc->kc_chain; ksp; ksp = ksp->ks_next) { |
322 |
if (!strcmp(ksp->ks_class, "disk")) { |
323 |
|
324 |
if(ksp->ks_type != KSTAT_TYPE_IO) continue; |
325 |
/* We dont want metadevices appearins as num_diskio */ |
326 |
if(strcmp(ksp->ks_module, "md")==0) continue; |
327 |
if((kstat_read(kc, ksp, &kios))==-1){ |
328 |
} |
329 |
|
330 |
if((diskio_stats=diskio_stat_malloc(num_diskio+1, &sizeof_diskio_stats, diskio_stats))==NULL){ |
331 |
kstat_close(kc); |
332 |
return NULL; |
333 |
} |
334 |
diskio_stats_ptr=diskio_stats+num_diskio; |
335 |
|
336 |
diskio_stats_ptr->read_bytes=kios.nread; |
337 |
|
338 |
diskio_stats_ptr->write_bytes=kios.nwritten; |
339 |
|
340 |
if(diskio_stats_ptr->disk_name!=NULL) free(diskio_stats_ptr->disk_name); |
341 |
|
342 |
diskio_stats_ptr->disk_name=strdup(ksp->ks_name); |
343 |
diskio_stats_ptr->systime=time(NULL); |
344 |
num_diskio++; |
345 |
} |
346 |
} |
347 |
|
348 |
kstat_close(kc); |
349 |
#endif |
350 |
|
351 |
#ifdef LINUX |
352 |
f=fopen("/proc/stat", "r"); |
353 |
if(f==NULL){ |
354 |
*entries=0; |
355 |
fclose(f); |
356 |
return NULL; |
357 |
} |
358 |
if((line_ptr=f_read_line(f, "disk_io:"))==NULL){ |
359 |
*entries=0; |
360 |
fclose(f); |
361 |
return NULL; |
362 |
} |
363 |
while((line_ptr=strchr(line_ptr, ' '))!=NULL){ |
364 |
line_ptr++; |
365 |
if(*line_ptr=='\0'){ |
366 |
break; |
367 |
} |
368 |
if((diskio_stats=diskio_stat_malloc(num_diskio+1, &sizeof_diskio_stats, diskio_stats))==NULL){ |
369 |
fclose(f); |
370 |
*entries=0; |
371 |
return NULL; |
372 |
} |
373 |
diskio_stats_ptr=diskio_stats+num_diskio; |
374 |
|
375 |
|
376 |
if((sscanf(line_ptr, "(%d,%d):(%*d, %*d, %lld, %*d, %lld)", \ |
377 |
&major, \ |
378 |
&minor, \ |
379 |
&diskio_stats_ptr->read_bytes, \ |
380 |
&diskio_stats_ptr->write_bytes))!=4) { |
381 |
continue; |
382 |
} |
383 |
|
384 |
/* We read the number of blocks. Blocks are stored in 512 bytes */ |
385 |
diskio_stats_ptr->read_bytes=diskio_stats_ptr->read_bytes*512; |
386 |
diskio_stats_ptr->write_bytes=diskio_stats_ptr->write_bytes*512; |
387 |
|
388 |
if(diskio_stats_ptr->disk_name!=NULL) free(diskio_stats_ptr->disk_name); |
389 |
|
390 |
switch(major){ |
391 |
case 2: |
392 |
if(minor==0){ |
393 |
diskio_stats_ptr->disk_name=strdup("fd0"); |
394 |
} |
395 |
break; |
396 |
|
397 |
case 3: |
398 |
if(minor==0){ |
399 |
diskio_stats_ptr->disk_name=strdup("hda"); |
400 |
}else{ |
401 |
diskio_stats_ptr->disk_name=strdup("hdb"); |
402 |
} |
403 |
break; |
404 |
|
405 |
case 22: |
406 |
if(minor==0){ |
407 |
diskio_stats_ptr->disk_name=strdup("hdc"); |
408 |
}else{ |
409 |
diskio_stats_ptr->disk_name=strdup("hdd"); |
410 |
} |
411 |
break; |
412 |
case 8: |
413 |
dev_letter='a'+(minor/16); |
414 |
diskio_stats_ptr->disk_name=malloc(4); |
415 |
snprintf(diskio_stats_ptr->disk_name, 4, "sd%c", dev_letter); |
416 |
break; |
417 |
default: |
418 |
/* I have no idea what it is then :) */ |
419 |
diskio_stats_ptr->disk_name=malloc(16); |
420 |
snprintf(diskio_stats_ptr->disk_name, 16, "%d %d", major, minor); |
421 |
break; |
422 |
} |
423 |
|
424 |
diskio_stats_ptr->systime=time(NULL); |
425 |
num_diskio++; |
426 |
} |
427 |
|
428 |
fclose(f); |
429 |
|
430 |
#endif |
431 |
*entries=num_diskio; |
432 |
|
433 |
return diskio_stats; |
434 |
} |
435 |
|
436 |
diskio_stat_t *get_diskio_stats_diff(int *entries){ |
437 |
static diskio_stat_t *diskio_stats_diff=NULL; |
438 |
static int sizeof_diskio_stats_diff=0; |
439 |
diskio_stat_t *diskio_stats_diff_ptr, *diskio_stats_ptr; |
440 |
int disks, x, y; |
441 |
|
442 |
if(diskio_stats==NULL){ |
443 |
diskio_stats_ptr=get_diskio_stats(&disks); |
444 |
*entries=disks; |
445 |
return diskio_stats_ptr; |
446 |
} |
447 |
|
448 |
diskio_stats_diff=diskio_stat_malloc(num_diskio, &sizeof_diskio_stats_diff, diskio_stats_diff); |
449 |
if(diskio_stats_diff==NULL){ |
450 |
return NULL; |
451 |
} |
452 |
|
453 |
diskio_stats_diff_ptr=diskio_stats_diff; |
454 |
diskio_stats_ptr=diskio_stats; |
455 |
|
456 |
for(disks=0;disks<num_diskio;disks++){ |
457 |
if(diskio_stats_diff_ptr->disk_name!=NULL){ |
458 |
free(diskio_stats_diff_ptr->disk_name); |
459 |
} |
460 |
diskio_stats_diff_ptr->disk_name=strdup(diskio_stats_ptr->disk_name); |
461 |
diskio_stats_diff_ptr->read_bytes=diskio_stats_ptr->read_bytes; |
462 |
diskio_stats_diff_ptr->write_bytes=diskio_stats_ptr->write_bytes; |
463 |
diskio_stats_diff_ptr->systime=diskio_stats_ptr->systime; |
464 |
|
465 |
diskio_stats_diff_ptr++; |
466 |
diskio_stats_ptr++; |
467 |
} |
468 |
|
469 |
diskio_stats_ptr=get_diskio_stats(&disks); |
470 |
diskio_stats_diff_ptr=diskio_stats_diff; |
471 |
|
472 |
for(x=0;x<sizeof_diskio_stats_diff;x++){ |
473 |
|
474 |
if((strcmp(diskio_stats_diff_ptr->disk_name, diskio_stats_ptr->disk_name))==0){ |
475 |
diskio_stats_diff_ptr->read_bytes=diskio_stats_ptr->read_bytes-diskio_stats_diff_ptr->read_bytes; |
476 |
diskio_stats_diff_ptr->write_bytes=diskio_stats_ptr->write_bytes-diskio_stats_diff_ptr->write_bytes; |
477 |
diskio_stats_diff_ptr->systime=diskio_stats_ptr->systime-diskio_stats_diff_ptr->systime; |
478 |
}else{ |
479 |
diskio_stats_ptr=diskio_stats; |
480 |
for(y=0;y<disks;y++){ |
481 |
if((strcmp(diskio_stats_diff_ptr->disk_name, diskio_stats_ptr->disk_name))==0){ |
482 |
diskio_stats_diff_ptr->read_bytes=diskio_stats_ptr->read_bytes-diskio_stats_diff_ptr->read_bytes; |
483 |
diskio_stats_diff_ptr->write_bytes=diskio_stats_ptr->write_bytes-diskio_stats_diff_ptr->write_bytes; |
484 |
diskio_stats_diff_ptr->systime=diskio_stats_ptr->systime-diskio_stats_diff_ptr->systime; |
485 |
|
486 |
break; |
487 |
} |
488 |
|
489 |
diskio_stats_ptr++; |
490 |
} |
491 |
} |
492 |
|
493 |
diskio_stats_ptr++; |
494 |
diskio_stats_diff_ptr++; |
495 |
|
496 |
} |
497 |
|
498 |
*entries=sizeof_diskio_stats_diff; |
499 |
return diskio_stats_diff; |
500 |
} |