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/* |
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* i-scream central monitoring system |
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* http://www.i-scream.org |
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* Copyright (C) 2000-2003 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 |
22 |
#include "config.h" |
23 |
#endif |
24 |
|
25 |
#include <stdio.h> |
26 |
#include <stdlib.h> |
27 |
#include <string.h> |
28 |
#include <time.h> |
29 |
#include "statgrab.h" |
30 |
|
31 |
#ifdef SOLARIS |
32 |
#include <sys/mnttab.h> |
33 |
#include <sys/statvfs.h> |
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#include <kstat.h> |
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#define VALID_FS_TYPES {"ufs", "tmpfs"} |
36 |
#endif |
37 |
|
38 |
#if defined(LINUX) || defined(CYGWIN) |
39 |
#include <mntent.h> |
40 |
#include <sys/vfs.h> |
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#include "tools.h" |
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#endif |
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|
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#ifdef LINUX |
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#define VALID_FS_TYPES {"adfs", "affs", "befs", "bfs", "efs", "ext2", \ |
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"ext3", "vxfs", "hfs", "hfsplus", "hpfs", "jffs", \ |
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"jffs2", "minix", "msdos", "ntfs", "qnx4", "ramfs", \ |
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"rootfs", "reiserfs", "sysv", "v7", "udf", "ufs", \ |
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"umsdos", "vfat", "xfs", "jfs"} |
50 |
#endif |
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|
52 |
#ifdef CYGWIN |
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#define VALID_FS_TYPES {"user"} |
54 |
#endif |
55 |
|
56 |
#ifdef ALLBSD |
57 |
#include <sys/param.h> |
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#include <sys/ucred.h> |
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#include <sys/mount.h> |
60 |
#endif |
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#ifdef FREEBSD |
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#include <sys/dkstat.h> |
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#include <devstat.h> |
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#define VALID_FS_TYPES {"hpfs", "msdosfs", "ntfs", "udf", "ext2fs", \ |
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"ufs", "mfs"} |
66 |
#endif |
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#ifdef NETBSD |
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#include <sys/param.h> |
69 |
#include <sys/sysctl.h> |
70 |
#include <sys/disk.h> |
71 |
#define VALID_FS_TYPES {"ffs", "mfs", "msdos", "lfs", "adosfs", "ext2fs", \ |
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"ntfs"} |
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#endif |
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|
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#define START_VAL 1 |
76 |
|
77 |
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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|
92 |
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; |
96 |
|
97 |
disk_stats++; |
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} |
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} |
100 |
|
101 |
int is_valid_fs_type(const char *type) { |
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const char *types[] = VALID_FS_TYPES; |
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int i; |
104 |
|
105 |
for (i = 0; i < (sizeof types / sizeof *types); i++) { |
106 |
if (strcmp(types[i], type) == 0) { |
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return 1; |
108 |
} |
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} |
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return 0; |
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} |
112 |
|
113 |
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; |
117 |
|
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int valid_type; |
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int num_disks=0; |
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#if defined(LINUX) || defined (SOLARIS) || defined(CYGWIN) |
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FILE *f; |
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#endif |
123 |
|
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disk_stat_t *disk_ptr; |
125 |
|
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#ifdef SOLARIS |
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struct mnttab mp; |
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struct statvfs fs; |
129 |
#endif |
130 |
#if defined(LINUX) || defined(CYGWIN) |
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struct mntent *mp; |
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struct statfs fs; |
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#endif |
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#ifdef ALLBSD |
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int nummnt; |
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struct statfs *mp; |
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#endif |
138 |
|
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if(watermark==-1){ |
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disk_stats=malloc(START_VAL * sizeof(disk_stat_t)); |
141 |
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 ALLBSD |
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nummnt=getmntinfo(&mp , MNT_LOCAL); |
149 |
if (nummnt<=0){ |
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return NULL; |
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} |
152 |
for(;nummnt--; mp++){ |
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valid_type = is_valid_fs_type(mp->f_fstypename); |
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#endif |
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|
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#if defined(LINUX) || defined(CYGWIN) |
157 |
if ((f=setmntent("/etc/mtab", "r" ))==NULL){ |
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return NULL; |
159 |
} |
160 |
|
161 |
while((mp=getmntent(f))){ |
162 |
if((statfs(mp->mnt_dir, &fs)) !=0){ |
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continue; |
164 |
} |
165 |
|
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valid_type = is_valid_fs_type(mp->mnt_type); |
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#endif |
168 |
|
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#ifdef SOLARIS |
170 |
if ((f=fopen("/etc/mnttab", "r" ))==NULL){ |
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return NULL; |
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} |
173 |
while((getmntent(f, &mp)) == 0){ |
174 |
if ((statvfs(mp.mnt_mountp, &fs)) !=0){ |
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continue; |
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} |
177 |
valid_type = is_valid_fs_type(mp.mnt_fstype); |
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#endif |
179 |
|
180 |
if(valid_type){ |
181 |
if(num_disks>watermark-1){ |
182 |
disk_ptr=disk_stats; |
183 |
if((disk_stats=realloc(disk_stats, (watermark*2 * sizeof(disk_stat_t))))==NULL){ |
184 |
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); |
190 |
} |
191 |
|
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disk_ptr=disk_stats+num_disks; |
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#ifdef ALLBSD |
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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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} |
197 |
|
198 |
if((disk_ptr->fs_type=copy_string(disk_ptr->fs_type, mp->f_fstypename))==NULL){ |
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return NULL; |
200 |
} |
201 |
|
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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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} |
205 |
|
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disk_ptr->size = (long long)mp->f_bsize * (long long) mp->f_blocks; |
207 |
disk_ptr->avail = (long long)mp->f_bsize * (long long) mp->f_bavail; |
208 |
disk_ptr->used = (disk_ptr->size) - ((long long)mp->f_bsize * (long long)mp->f_bfree); |
209 |
|
210 |
disk_ptr->total_inodes=(long long)mp->f_files; |
211 |
disk_ptr->free_inodes=(long long)mp->f_ffree; |
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/* Freebsd doesn't have a "available" inodes */ |
213 |
disk_ptr->used_inodes=disk_ptr->total_inodes-disk_ptr->free_inodes; |
214 |
#endif |
215 |
#if defined(LINUX) || defined(CYGWIN) |
216 |
if((disk_ptr->device_name=copy_string(disk_ptr->device_name, mp->mnt_fsname))==NULL){ |
217 |
return NULL; |
218 |
} |
219 |
|
220 |
if((disk_ptr->fs_type=copy_string(disk_ptr->fs_type, mp->mnt_type))==NULL){ |
221 |
return NULL; |
222 |
} |
223 |
|
224 |
if((disk_ptr->mnt_point=copy_string(disk_ptr->mnt_point, mp->mnt_dir))==NULL){ |
225 |
return NULL; |
226 |
} |
227 |
disk_ptr->size = (long long)fs.f_bsize * (long long)fs.f_blocks; |
228 |
disk_ptr->avail = (long long)fs.f_bsize * (long long)fs.f_bavail; |
229 |
disk_ptr->used = (disk_ptr->size) - ((long long)fs.f_bsize * (long long)fs.f_bfree); |
230 |
|
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disk_ptr->total_inodes=(long long)fs.f_files; |
232 |
disk_ptr->free_inodes=(long long)fs.f_ffree; |
233 |
/* Linux doesn't have a "available" inodes */ |
234 |
disk_ptr->used_inodes=disk_ptr->total_inodes-disk_ptr->free_inodes; |
235 |
#endif |
236 |
|
237 |
#ifdef SOLARIS |
238 |
/* Memory leak in event of realloc failing */ |
239 |
/* Maybe make this char[bigenough] and do strncpy's and put a null in the end? |
240 |
* Downside is its a bit hungry for a lot of mounts, as MNT_MAX_SIZE would prob |
241 |
* be upwards of a k each |
242 |
*/ |
243 |
if((disk_ptr->device_name=copy_string(disk_ptr->device_name, mp.mnt_special))==NULL){ |
244 |
return NULL; |
245 |
} |
246 |
|
247 |
if((disk_ptr->fs_type=copy_string(disk_ptr->fs_type, mp.mnt_fstype))==NULL){ |
248 |
return NULL; |
249 |
} |
250 |
|
251 |
if((disk_ptr->mnt_point=copy_string(disk_ptr->mnt_point, mp.mnt_mountp))==NULL){ |
252 |
return NULL; |
253 |
} |
254 |
|
255 |
disk_ptr->size = (long long)fs.f_frsize * (long long)fs.f_blocks; |
256 |
disk_ptr->avail = (long long)fs.f_frsize * (long long)fs.f_bavail; |
257 |
disk_ptr->used = (disk_ptr->size) - ((long long)fs.f_frsize * (long long)fs.f_bfree); |
258 |
|
259 |
disk_ptr->total_inodes=(long long)fs.f_files; |
260 |
disk_ptr->used_inodes=disk_ptr->total_inodes - (long long)fs.f_ffree; |
261 |
disk_ptr->free_inodes=(long long)fs.f_favail; |
262 |
#endif |
263 |
num_disks++; |
264 |
} |
265 |
} |
266 |
|
267 |
*entries=num_disks; |
268 |
|
269 |
/* If this fails, there is very little i can do about it, so |
270 |
I'll ignore it :) */ |
271 |
#if defined(LINUX) || defined(CYGWIN) |
272 |
endmntent(f); |
273 |
#endif |
274 |
#if defined(SOLARIS) |
275 |
fclose(f); |
276 |
#endif |
277 |
|
278 |
return disk_stats; |
279 |
|
280 |
} |
281 |
void diskio_stat_init(int start, int end, diskio_stat_t *diskio_stats){ |
282 |
|
283 |
for(diskio_stats+=start; start<end; start++){ |
284 |
diskio_stats->disk_name=NULL; |
285 |
|
286 |
diskio_stats++; |
287 |
} |
288 |
} |
289 |
|
290 |
diskio_stat_t *diskio_stat_malloc(int needed_entries, int *cur_entries, diskio_stat_t *diskio_stats){ |
291 |
|
292 |
if(diskio_stats==NULL){ |
293 |
|
294 |
if((diskio_stats=malloc(needed_entries * sizeof(diskio_stat_t)))==NULL){ |
295 |
return NULL; |
296 |
} |
297 |
diskio_stat_init(0, needed_entries, diskio_stats); |
298 |
*cur_entries=needed_entries; |
299 |
|
300 |
return diskio_stats; |
301 |
} |
302 |
|
303 |
|
304 |
if(*cur_entries<needed_entries){ |
305 |
diskio_stats=realloc(diskio_stats, (sizeof(diskio_stat_t)*needed_entries)); |
306 |
if(diskio_stats==NULL){ |
307 |
return NULL; |
308 |
} |
309 |
diskio_stat_init(*cur_entries, needed_entries, diskio_stats); |
310 |
*cur_entries=needed_entries; |
311 |
} |
312 |
|
313 |
return diskio_stats; |
314 |
} |
315 |
|
316 |
static diskio_stat_t *diskio_stats=NULL; |
317 |
static int num_diskio=0; |
318 |
|
319 |
#ifdef LINUX |
320 |
typedef struct { |
321 |
int major; |
322 |
int minor; |
323 |
} partition; |
324 |
#endif |
325 |
|
326 |
diskio_stat_t *get_diskio_stats(int *entries){ |
327 |
|
328 |
static int sizeof_diskio_stats=0; |
329 |
#ifndef LINUX |
330 |
diskio_stat_t *diskio_stats_ptr; |
331 |
#endif |
332 |
|
333 |
#ifdef SOLARIS |
334 |
kstat_ctl_t *kc; |
335 |
kstat_t *ksp; |
336 |
kstat_io_t kios; |
337 |
#endif |
338 |
#ifdef LINUX |
339 |
FILE *f; |
340 |
char *line_ptr; |
341 |
int major, minor; |
342 |
int has_pp_stats = 1; |
343 |
static partition *parts = NULL; |
344 |
static int alloc_parts = 0; |
345 |
int i, n; |
346 |
time_t now; |
347 |
const char *format; |
348 |
#endif |
349 |
#ifdef FREEBSD |
350 |
static struct statinfo stats; |
351 |
static int stats_init = 0; |
352 |
int counter; |
353 |
struct device_selection *dev_sel = NULL; |
354 |
int n_selected, n_selections; |
355 |
long sel_gen; |
356 |
struct devstat *dev_ptr; |
357 |
#endif |
358 |
#ifdef NETBSD |
359 |
struct disk_sysctl *stats; |
360 |
int num_disks, i; |
361 |
int mib[3]; |
362 |
size_t size; |
363 |
#endif |
364 |
|
365 |
num_diskio=0; |
366 |
|
367 |
#ifdef NETBSD |
368 |
mib[0] = CTL_HW; |
369 |
mib[1] = HW_DISKSTATS; |
370 |
mib[2] = sizeof(struct disk_sysctl); |
371 |
|
372 |
if (sysctl(mib, 3, NULL, &size, NULL, 0) < 0) { |
373 |
return NULL; |
374 |
} |
375 |
num_disks = size / sizeof(struct disk_sysctl); |
376 |
|
377 |
stats = malloc(size); |
378 |
if (stats == NULL) { |
379 |
return NULL; |
380 |
} |
381 |
|
382 |
if (sysctl(mib, 3, stats, &size, NULL, 0) < 0) { |
383 |
return NULL; |
384 |
} |
385 |
|
386 |
for (i = 0; i < num_disks; i++) { |
387 |
u_int64_t rbytes, wbytes; |
388 |
|
389 |
#ifdef HAVE_DK_RBYTES |
390 |
rbytes = stats[i].dk_rbytes; |
391 |
wbytes = stats[i].dk_wbytes; |
392 |
#else |
393 |
/* Before 1.7, NetBSD merged reads and writes. */ |
394 |
rbytes = wbytes = stats[i].dk_bytes; |
395 |
#endif |
396 |
|
397 |
/* Don't keep stats for disks that have never been used. */ |
398 |
if (rbytes == 0 && wbytes == 0) { |
399 |
continue; |
400 |
} |
401 |
|
402 |
diskio_stats = diskio_stat_malloc(num_diskio + 1, |
403 |
&sizeof_diskio_stats, |
404 |
diskio_stats); |
405 |
if (diskio_stats == NULL) { |
406 |
return NULL; |
407 |
} |
408 |
diskio_stats_ptr = diskio_stats + num_diskio; |
409 |
|
410 |
diskio_stats_ptr->read_bytes = rbytes; |
411 |
diskio_stats_ptr->write_bytes = wbytes; |
412 |
if (diskio_stats_ptr->disk_name != NULL) { |
413 |
free(diskio_stats_ptr->disk_name); |
414 |
} |
415 |
diskio_stats_ptr->disk_name = strdup(stats[i].dk_name); |
416 |
diskio_stats_ptr->systime = time(NULL); |
417 |
|
418 |
num_diskio++; |
419 |
} |
420 |
|
421 |
free(stats); |
422 |
#endif |
423 |
|
424 |
#ifdef FREEBSD |
425 |
if (!stats_init) { |
426 |
stats.dinfo=malloc(sizeof(struct devinfo)); |
427 |
if(stats.dinfo==NULL) return NULL; |
428 |
bzero(stats.dinfo, sizeof(struct devinfo)); |
429 |
stats_init = 1; |
430 |
} |
431 |
#ifdef FREEBSD5 |
432 |
if ((devstat_getdevs(NULL, &stats)) < 0) return NULL; |
433 |
/* Not aware of a get all devices, so i said 999. If we ever |
434 |
* find a machine with more than 999 disks, then i'll change |
435 |
* this number :) |
436 |
*/ |
437 |
if (devstat_selectdevs(&dev_sel, &n_selected, &n_selections, &sel_gen, stats.dinfo->generation, stats.dinfo->devices, stats.dinfo->numdevs, NULL, 0, NULL, 0, DS_SELECT_ONLY, 999, 1) < 0) return NULL; |
438 |
#else |
439 |
if ((getdevs(&stats)) < 0) return NULL; |
440 |
/* Not aware of a get all devices, so i said 999. If we ever |
441 |
* find a machine with more than 999 disks, then i'll change |
442 |
* this number :) |
443 |
*/ |
444 |
if (selectdevs(&dev_sel, &n_selected, &n_selections, &sel_gen, stats.dinfo->generation, stats.dinfo->devices, stats.dinfo->numdevs, NULL, 0, NULL, 0, DS_SELECT_ONLY, 999, 1) < 0) return NULL; |
445 |
#endif |
446 |
|
447 |
for(counter=0;counter<stats.dinfo->numdevs;counter++){ |
448 |
dev_ptr=&stats.dinfo->devices[dev_sel[counter].position]; |
449 |
|
450 |
/* Throw away devices that have done nothing, ever.. Eg "odd" |
451 |
* devices.. like mem, proc.. and also doesn't report floppy |
452 |
* drives etc unless they are doing stuff :) |
453 |
*/ |
454 |
#ifdef FREEBSD5 |
455 |
if((dev_ptr->bytes[DEVSTAT_READ]==0) && (dev_ptr->bytes[DEVSTAT_WRITE]==0)) continue; |
456 |
#else |
457 |
if((dev_ptr->bytes_read==0) && (dev_ptr->bytes_written==0)) continue; |
458 |
#endif |
459 |
if((diskio_stats=diskio_stat_malloc(num_diskio+1, &sizeof_diskio_stats, diskio_stats))==NULL){ |
460 |
return NULL; |
461 |
} |
462 |
diskio_stats_ptr=diskio_stats+num_diskio; |
463 |
|
464 |
#ifdef FREEBSD5 |
465 |
diskio_stats_ptr->read_bytes=dev_ptr->bytes[DEVSTAT_READ]; |
466 |
diskio_stats_ptr->write_bytes=dev_ptr->bytes[DEVSTAT_WRITE]; |
467 |
#else |
468 |
diskio_stats_ptr->read_bytes=dev_ptr->bytes_read; |
469 |
diskio_stats_ptr->write_bytes=dev_ptr->bytes_written; |
470 |
#endif |
471 |
if(diskio_stats_ptr->disk_name!=NULL) free(diskio_stats_ptr->disk_name); |
472 |
asprintf((&diskio_stats_ptr->disk_name), "%s%d", dev_ptr->device_name, dev_ptr->unit_number); |
473 |
diskio_stats_ptr->systime=time(NULL); |
474 |
|
475 |
num_diskio++; |
476 |
} |
477 |
free(dev_sel); |
478 |
|
479 |
#endif |
480 |
#ifdef SOLARIS |
481 |
if ((kc = kstat_open()) == NULL) { |
482 |
return NULL; |
483 |
} |
484 |
|
485 |
for (ksp = kc->kc_chain; ksp; ksp = ksp->ks_next) { |
486 |
if (!strcmp(ksp->ks_class, "disk")) { |
487 |
|
488 |
if(ksp->ks_type != KSTAT_TYPE_IO) continue; |
489 |
/* We dont want metadevices appearins as num_diskio */ |
490 |
if(strcmp(ksp->ks_module, "md")==0) continue; |
491 |
if((kstat_read(kc, ksp, &kios))==-1){ |
492 |
} |
493 |
|
494 |
if((diskio_stats=diskio_stat_malloc(num_diskio+1, &sizeof_diskio_stats, diskio_stats))==NULL){ |
495 |
kstat_close(kc); |
496 |
return NULL; |
497 |
} |
498 |
diskio_stats_ptr=diskio_stats+num_diskio; |
499 |
|
500 |
diskio_stats_ptr->read_bytes=kios.nread; |
501 |
|
502 |
diskio_stats_ptr->write_bytes=kios.nwritten; |
503 |
|
504 |
if(diskio_stats_ptr->disk_name!=NULL) free(diskio_stats_ptr->disk_name); |
505 |
|
506 |
diskio_stats_ptr->disk_name=strdup(ksp->ks_name); |
507 |
diskio_stats_ptr->systime=time(NULL); |
508 |
num_diskio++; |
509 |
} |
510 |
} |
511 |
|
512 |
kstat_close(kc); |
513 |
#endif |
514 |
|
515 |
#ifdef LINUX |
516 |
num_diskio = 0; |
517 |
n = 0; |
518 |
|
519 |
/* Read /proc/partitions to find what devices exist. Recent 2.4 kernels |
520 |
have statistics in here too, so we can use those directly. |
521 |
2.6 kernels have /proc/diskstats instead with almost (but not quite) |
522 |
the same format. */ |
523 |
|
524 |
f = fopen("/proc/diskstats", "r"); |
525 |
format = " %d %d %19s %*d %*d %lld %*d %*d %*d %lld"; |
526 |
if (f == NULL) { |
527 |
f = fopen("/proc/partitions", "r"); |
528 |
format = " %d %d %*d %19s %*d %*d %lld %*d %*d %*d %lld"; |
529 |
} |
530 |
if (f == NULL) goto out; |
531 |
now = time(NULL); |
532 |
|
533 |
while ((line_ptr = f_read_line(f, "")) != NULL) { |
534 |
char name[20]; |
535 |
char *s; |
536 |
long long rsect, wsect; |
537 |
|
538 |
int nr = sscanf(line_ptr, format, |
539 |
&major, &minor, name, &rsect, &wsect); |
540 |
if (nr < 3) continue; |
541 |
|
542 |
/* Skip device names ending in numbers, since they're |
543 |
partitions. */ |
544 |
s = name; |
545 |
while (*s != '\0') s++; |
546 |
--s; |
547 |
if (*s >= '0' && *s <= '9') continue; |
548 |
|
549 |
if (nr < 5) { |
550 |
has_pp_stats = 0; |
551 |
rsect = 0; |
552 |
wsect = 0; |
553 |
} |
554 |
|
555 |
diskio_stats = diskio_stat_malloc(n + 1, &sizeof_diskio_stats, |
556 |
diskio_stats); |
557 |
if (diskio_stats == NULL) goto out; |
558 |
if (n >= alloc_parts) { |
559 |
alloc_parts += 16; |
560 |
parts = realloc(parts, alloc_parts * sizeof *parts); |
561 |
if (parts == NULL) { |
562 |
alloc_parts = 0; |
563 |
goto out; |
564 |
} |
565 |
} |
566 |
|
567 |
if (diskio_stats[n].disk_name != NULL) |
568 |
free(diskio_stats[n].disk_name); |
569 |
diskio_stats[n].disk_name = strdup(name); |
570 |
diskio_stats[n].read_bytes = rsect * 512; |
571 |
diskio_stats[n].write_bytes = wsect * 512; |
572 |
diskio_stats[n].systime = now; |
573 |
parts[n].major = major; |
574 |
parts[n].minor = minor; |
575 |
|
576 |
n++; |
577 |
} |
578 |
|
579 |
if (!has_pp_stats) { |
580 |
/* This is an older kernel without stats in /proc/partitions. |
581 |
Read what we can from /proc/stat instead. */ |
582 |
|
583 |
f = fopen("/proc/stat", "r"); |
584 |
if (f == NULL) goto out; |
585 |
now = time(NULL); |
586 |
|
587 |
line_ptr = f_read_line(f, "disk_io:"); |
588 |
if (line_ptr == NULL) goto out; |
589 |
|
590 |
while((line_ptr=strchr(line_ptr, ' '))!=NULL){ |
591 |
long long rsect, wsect; |
592 |
|
593 |
if (*++line_ptr == '\0') break; |
594 |
|
595 |
if((sscanf(line_ptr, |
596 |
"(%d,%d):(%*d, %*d, %lld, %*d, %lld)", |
597 |
&major, &minor, &rsect, &wsect)) != 4) { |
598 |
continue; |
599 |
} |
600 |
|
601 |
/* Find the corresponding device from earlier. |
602 |
Just to add to the fun, "minor" is actually the disk |
603 |
number, not the device minor, so we need to figure |
604 |
out the real minor number based on the major! |
605 |
This list is not exhaustive; if you're running |
606 |
an older kernel you probably don't have fancy |
607 |
I2O hardware anyway... */ |
608 |
switch (major) { |
609 |
case 3: |
610 |
case 21: |
611 |
case 22: |
612 |
case 33: |
613 |
case 34: |
614 |
case 36: |
615 |
case 56: |
616 |
case 57: |
617 |
case 88: |
618 |
case 89: |
619 |
case 90: |
620 |
case 91: |
621 |
minor *= 64; |
622 |
break; |
623 |
case 9: |
624 |
case 43: |
625 |
break; |
626 |
default: |
627 |
minor *= 16; |
628 |
break; |
629 |
} |
630 |
for (i = 0; i < n; i++) { |
631 |
if (major == parts[i].major |
632 |
&& minor == parts[i].minor) |
633 |
break; |
634 |
} |
635 |
if (i == n) continue; |
636 |
|
637 |
/* We read the number of blocks. Blocks are stored in |
638 |
512 bytes */ |
639 |
diskio_stats[i].read_bytes = rsect * 512; |
640 |
diskio_stats[i].write_bytes = wsect * 512; |
641 |
diskio_stats[i].systime = now; |
642 |
} |
643 |
} |
644 |
|
645 |
num_diskio = n; |
646 |
out: |
647 |
if (f != NULL) fclose(f); |
648 |
|
649 |
#endif |
650 |
*entries=num_diskio; |
651 |
|
652 |
return diskio_stats; |
653 |
} |
654 |
|
655 |
diskio_stat_t *get_diskio_stats_diff(int *entries){ |
656 |
static diskio_stat_t *diskio_stats_diff=NULL; |
657 |
static int sizeof_diskio_stats_diff=0; |
658 |
diskio_stat_t *diskio_stats_diff_ptr, *diskio_stats_ptr; |
659 |
int disks, x, y; |
660 |
|
661 |
if(diskio_stats==NULL){ |
662 |
diskio_stats_ptr=get_diskio_stats(&disks); |
663 |
*entries=disks; |
664 |
return diskio_stats_ptr; |
665 |
} |
666 |
|
667 |
diskio_stats_diff=diskio_stat_malloc(num_diskio, &sizeof_diskio_stats_diff, diskio_stats_diff); |
668 |
if(diskio_stats_diff==NULL){ |
669 |
return NULL; |
670 |
} |
671 |
|
672 |
diskio_stats_diff_ptr=diskio_stats_diff; |
673 |
diskio_stats_ptr=diskio_stats; |
674 |
|
675 |
for(disks=0;disks<num_diskio;disks++){ |
676 |
if(diskio_stats_diff_ptr->disk_name!=NULL){ |
677 |
free(diskio_stats_diff_ptr->disk_name); |
678 |
} |
679 |
diskio_stats_diff_ptr->disk_name=strdup(diskio_stats_ptr->disk_name); |
680 |
diskio_stats_diff_ptr->read_bytes=diskio_stats_ptr->read_bytes; |
681 |
diskio_stats_diff_ptr->write_bytes=diskio_stats_ptr->write_bytes; |
682 |
diskio_stats_diff_ptr->systime=diskio_stats_ptr->systime; |
683 |
|
684 |
diskio_stats_diff_ptr++; |
685 |
diskio_stats_ptr++; |
686 |
} |
687 |
|
688 |
diskio_stats_ptr=get_diskio_stats(&disks); |
689 |
diskio_stats_diff_ptr=diskio_stats_diff; |
690 |
|
691 |
for(x=0;x<sizeof_diskio_stats_diff;x++){ |
692 |
|
693 |
if((strcmp(diskio_stats_diff_ptr->disk_name, diskio_stats_ptr->disk_name))==0){ |
694 |
diskio_stats_diff_ptr->read_bytes=diskio_stats_ptr->read_bytes-diskio_stats_diff_ptr->read_bytes; |
695 |
diskio_stats_diff_ptr->write_bytes=diskio_stats_ptr->write_bytes-diskio_stats_diff_ptr->write_bytes; |
696 |
diskio_stats_diff_ptr->systime=diskio_stats_ptr->systime-diskio_stats_diff_ptr->systime; |
697 |
}else{ |
698 |
diskio_stats_ptr=diskio_stats; |
699 |
for(y=0;y<disks;y++){ |
700 |
if((strcmp(diskio_stats_diff_ptr->disk_name, diskio_stats_ptr->disk_name))==0){ |
701 |
diskio_stats_diff_ptr->read_bytes=diskio_stats_ptr->read_bytes-diskio_stats_diff_ptr->read_bytes; |
702 |
diskio_stats_diff_ptr->write_bytes=diskio_stats_ptr->write_bytes-diskio_stats_diff_ptr->write_bytes; |
703 |
diskio_stats_diff_ptr->systime=diskio_stats_ptr->systime-diskio_stats_diff_ptr->systime; |
704 |
|
705 |
break; |
706 |
} |
707 |
|
708 |
diskio_stats_ptr++; |
709 |
} |
710 |
} |
711 |
|
712 |
diskio_stats_ptr++; |
713 |
diskio_stats_diff_ptr++; |
714 |
|
715 |
} |
716 |
|
717 |
*entries=sizeof_diskio_stats_diff; |
718 |
return diskio_stats_diff; |
719 |
} |