1 |
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/* |
1 |
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/* |
2 |
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* i-scream central monitoring system |
3 |
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* http://www.i-scream.org.uk |
4 |
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* Copyright (C) 2000-2002 i-scream |
3 |
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* http://www.i-scream.org |
4 |
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* Copyright (C) 2000-2004 i-scream |
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* |
6 |
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* This program is free software; you can redistribute it and/or |
7 |
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* modify it under the terms of the GNU General Public License |
8 |
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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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* This library is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
8 |
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* License as published by the Free Software Foundation; either |
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* version 2.1 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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* This library is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 |
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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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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
14 |
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* Lesser 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 |
17 |
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* along with this program; if not, write to the Free Software |
18 |
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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* You should have received a copy of the GNU Lesser General Public |
17 |
> |
* License along with this library; if not, write to the Free Software |
18 |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
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* 02111-1307 USA |
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* |
21 |
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* $Id$ |
22 |
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*/ |
23 |
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|
24 |
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#ifdef HAVE_CONFIG_H |
25 |
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#include "config.h" |
26 |
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#endif |
27 |
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|
25 |
– |
#include <stdlib.h> |
28 |
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#include <stdio.h> |
29 |
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#include <stdlib.h> |
30 |
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#include <string.h> |
31 |
+ |
#include <time.h> |
32 |
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#include "statgrab.h" |
33 |
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|
34 |
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#ifdef SOLARIS |
38 |
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#define VALID_FS_TYPES {"ufs", "tmpfs"} |
39 |
|
#endif |
40 |
|
|
41 |
+ |
#if defined(LINUX) || defined(CYGWIN) |
42 |
+ |
#include <mntent.h> |
43 |
+ |
#include <sys/vfs.h> |
44 |
+ |
#include "tools.h" |
45 |
+ |
#endif |
46 |
+ |
|
47 |
+ |
#ifdef LINUX |
48 |
+ |
#define VALID_FS_TYPES {"adfs", "affs", "befs", "bfs", "efs", "ext2", \ |
49 |
+ |
"ext3", "vxfs", "hfs", "hfsplus", "hpfs", "jffs", \ |
50 |
+ |
"jffs2", "minix", "msdos", "ntfs", "qnx4", "ramfs", \ |
51 |
+ |
"rootfs", "reiserfs", "sysv", "v7", "udf", "ufs", \ |
52 |
+ |
"umsdos", "vfat", "xfs", "jfs"} |
53 |
+ |
#endif |
54 |
+ |
|
55 |
+ |
#ifdef CYGWIN |
56 |
+ |
#define VALID_FS_TYPES {"user"} |
57 |
+ |
#endif |
58 |
+ |
|
59 |
+ |
#ifdef ALLBSD |
60 |
+ |
#include <sys/param.h> |
61 |
+ |
#include <sys/ucred.h> |
62 |
+ |
#include <sys/mount.h> |
63 |
+ |
#endif |
64 |
+ |
#ifdef FREEBSD |
65 |
+ |
#include <sys/dkstat.h> |
66 |
+ |
#include <devstat.h> |
67 |
+ |
#define VALID_FS_TYPES {"hpfs", "msdosfs", "ntfs", "udf", "ext2fs", \ |
68 |
+ |
"ufs", "mfs"} |
69 |
+ |
#endif |
70 |
+ |
#if defined(NETBSD) || defined(OPENBSD) |
71 |
+ |
#include <sys/param.h> |
72 |
+ |
#include <sys/sysctl.h> |
73 |
+ |
#include <sys/disk.h> |
74 |
+ |
#define VALID_FS_TYPES {"ffs", "mfs", "msdos", "lfs", "adosfs", "ext2fs", \ |
75 |
+ |
"ntfs"} |
76 |
+ |
#endif |
77 |
+ |
|
78 |
|
#define START_VAL 1 |
79 |
|
|
80 |
|
char *copy_string(char *orig_ptr, const char *newtext){ |
101 |
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} |
102 |
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} |
103 |
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|
104 |
+ |
int is_valid_fs_type(const char *type) { |
105 |
+ |
const char *types[] = VALID_FS_TYPES; |
106 |
+ |
int i; |
107 |
+ |
|
108 |
+ |
for (i = 0; i < (sizeof types / sizeof *types); i++) { |
109 |
+ |
if (strcmp(types[i], type) == 0) { |
110 |
+ |
return 1; |
111 |
+ |
} |
112 |
+ |
} |
113 |
+ |
return 0; |
114 |
+ |
} |
115 |
+ |
|
116 |
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disk_stat_t *get_disk_stats(int *entries){ |
117 |
|
|
118 |
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static disk_stat_t *disk_stats; |
119 |
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static int watermark=-1; |
120 |
|
|
121 |
< |
char *fs_types[] = VALID_FS_TYPES; |
69 |
< |
int x, valid_type; |
70 |
< |
|
121 |
> |
int valid_type; |
122 |
|
int num_disks=0; |
123 |
< |
struct mnttab mp; |
73 |
< |
struct statvfs fs; |
123 |
> |
#if defined(LINUX) || defined (SOLARIS) || defined(CYGWIN) |
124 |
|
FILE *f; |
125 |
+ |
#endif |
126 |
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|
127 |
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disk_stat_t *disk_ptr; |
128 |
|
|
129 |
+ |
#ifdef SOLARIS |
130 |
+ |
struct mnttab mp; |
131 |
+ |
struct statvfs fs; |
132 |
+ |
#endif |
133 |
+ |
#if defined(LINUX) || defined(CYGWIN) |
134 |
+ |
struct mntent *mp; |
135 |
+ |
struct statfs fs; |
136 |
+ |
#endif |
137 |
+ |
#ifdef ALLBSD |
138 |
+ |
int nummnt; |
139 |
+ |
struct statfs *mp; |
140 |
+ |
#endif |
141 |
+ |
|
142 |
|
if(watermark==-1){ |
143 |
|
disk_stats=malloc(START_VAL * sizeof(disk_stat_t)); |
144 |
|
if(disk_stats==NULL){ |
147 |
|
watermark=START_VAL; |
148 |
|
init_disk_stat(0, watermark-1, disk_stats); |
149 |
|
} |
150 |
+ |
#ifdef ALLBSD |
151 |
+ |
nummnt=getmntinfo(&mp , MNT_LOCAL); |
152 |
+ |
if (nummnt<=0){ |
153 |
+ |
return NULL; |
154 |
+ |
} |
155 |
+ |
for(;nummnt--; mp++){ |
156 |
+ |
valid_type = is_valid_fs_type(mp->f_fstypename); |
157 |
+ |
#endif |
158 |
|
|
159 |
+ |
#if defined(LINUX) || defined(CYGWIN) |
160 |
+ |
if ((f=setmntent("/etc/mtab", "r" ))==NULL){ |
161 |
+ |
return NULL; |
162 |
+ |
} |
163 |
|
|
164 |
+ |
while((mp=getmntent(f))){ |
165 |
+ |
if((statfs(mp->mnt_dir, &fs)) !=0){ |
166 |
+ |
continue; |
167 |
+ |
} |
168 |
+ |
|
169 |
+ |
valid_type = is_valid_fs_type(mp->mnt_type); |
170 |
+ |
#endif |
171 |
+ |
|
172 |
+ |
#ifdef SOLARIS |
173 |
|
if ((f=fopen("/etc/mnttab", "r" ))==NULL){ |
174 |
|
return NULL; |
175 |
|
} |
177 |
|
if ((statvfs(mp.mnt_mountp, &fs)) !=0){ |
178 |
|
continue; |
179 |
|
} |
180 |
+ |
valid_type = is_valid_fs_type(mp.mnt_fstype); |
181 |
+ |
#endif |
182 |
|
|
96 |
– |
valid_type=0; |
97 |
– |
for(x=0;x<((sizeof(fs_types))/(sizeof(char*)));x++){ |
98 |
– |
if(strcmp(mp.mnt_fstype, fs_types[x]) ==0){ |
99 |
– |
valid_type=1; |
100 |
– |
break; |
101 |
– |
} |
102 |
– |
} |
103 |
– |
|
183 |
|
if(valid_type){ |
184 |
|
if(num_disks>watermark-1){ |
185 |
|
disk_ptr=disk_stats; |
193 |
|
} |
194 |
|
|
195 |
|
disk_ptr=disk_stats+num_disks; |
196 |
< |
|
196 |
> |
#ifdef ALLBSD |
197 |
> |
if((disk_ptr->device_name=copy_string(disk_ptr->device_name, mp->f_mntfromname))==NULL){ |
198 |
> |
return NULL; |
199 |
> |
} |
200 |
> |
|
201 |
> |
if((disk_ptr->fs_type=copy_string(disk_ptr->fs_type, mp->f_fstypename))==NULL){ |
202 |
> |
return NULL; |
203 |
> |
} |
204 |
> |
|
205 |
> |
if((disk_ptr->mnt_point=copy_string(disk_ptr->mnt_point, mp->f_mntonname))==NULL){ |
206 |
> |
return NULL; |
207 |
> |
} |
208 |
> |
|
209 |
> |
disk_ptr->size = (long long)mp->f_bsize * (long long) mp->f_blocks; |
210 |
> |
disk_ptr->avail = (long long)mp->f_bsize * (long long) mp->f_bavail; |
211 |
> |
disk_ptr->used = (disk_ptr->size) - ((long long)mp->f_bsize * (long long)mp->f_bfree); |
212 |
> |
|
213 |
> |
disk_ptr->total_inodes=(long long)mp->f_files; |
214 |
> |
disk_ptr->free_inodes=(long long)mp->f_ffree; |
215 |
> |
/* Freebsd doesn't have a "available" inodes */ |
216 |
> |
disk_ptr->used_inodes=disk_ptr->total_inodes-disk_ptr->free_inodes; |
217 |
> |
#endif |
218 |
> |
#if defined(LINUX) || defined(CYGWIN) |
219 |
> |
if((disk_ptr->device_name=copy_string(disk_ptr->device_name, mp->mnt_fsname))==NULL){ |
220 |
> |
return NULL; |
221 |
> |
} |
222 |
> |
|
223 |
> |
if((disk_ptr->fs_type=copy_string(disk_ptr->fs_type, mp->mnt_type))==NULL){ |
224 |
> |
return NULL; |
225 |
> |
} |
226 |
> |
|
227 |
> |
if((disk_ptr->mnt_point=copy_string(disk_ptr->mnt_point, mp->mnt_dir))==NULL){ |
228 |
> |
return NULL; |
229 |
> |
} |
230 |
> |
disk_ptr->size = (long long)fs.f_bsize * (long long)fs.f_blocks; |
231 |
> |
disk_ptr->avail = (long long)fs.f_bsize * (long long)fs.f_bavail; |
232 |
> |
disk_ptr->used = (disk_ptr->size) - ((long long)fs.f_bsize * (long long)fs.f_bfree); |
233 |
> |
|
234 |
> |
disk_ptr->total_inodes=(long long)fs.f_files; |
235 |
> |
disk_ptr->free_inodes=(long long)fs.f_ffree; |
236 |
> |
/* Linux doesn't have a "available" inodes */ |
237 |
> |
disk_ptr->used_inodes=disk_ptr->total_inodes-disk_ptr->free_inodes; |
238 |
> |
#endif |
239 |
> |
|
240 |
> |
#ifdef SOLARIS |
241 |
|
/* Memory leak in event of realloc failing */ |
242 |
|
/* Maybe make this char[bigenough] and do strncpy's and put a null in the end? |
243 |
< |
Downside is its a bit hungry for a lot of mounts, as MNT_MAX_SIZE woul prob be upwards |
244 |
< |
of a k each */ |
243 |
> |
* Downside is its a bit hungry for a lot of mounts, as MNT_MAX_SIZE would prob |
244 |
> |
* be upwards of a k each |
245 |
> |
*/ |
246 |
|
if((disk_ptr->device_name=copy_string(disk_ptr->device_name, mp.mnt_special))==NULL){ |
247 |
|
return NULL; |
248 |
|
} |
262 |
|
disk_ptr->total_inodes=(long long)fs.f_files; |
263 |
|
disk_ptr->used_inodes=disk_ptr->total_inodes - (long long)fs.f_ffree; |
264 |
|
disk_ptr->free_inodes=(long long)fs.f_favail; |
265 |
< |
|
265 |
> |
#endif |
266 |
|
num_disks++; |
267 |
|
} |
268 |
|
} |
269 |
|
|
270 |
|
*entries=num_disks; |
271 |
|
|
272 |
< |
/* If this fails, there is very little i can do about it, so i'll ignore it :) */ |
272 |
> |
/* If this fails, there is very little i can do about it, so |
273 |
> |
I'll ignore it :) */ |
274 |
> |
#if defined(LINUX) || defined(CYGWIN) |
275 |
> |
endmntent(f); |
276 |
> |
#endif |
277 |
> |
#if defined(SOLARIS) |
278 |
|
fclose(f); |
279 |
+ |
#endif |
280 |
|
|
281 |
|
return disk_stats; |
282 |
|
|
283 |
|
} |
154 |
– |
|
284 |
|
void diskio_stat_init(int start, int end, diskio_stat_t *diskio_stats){ |
285 |
|
|
286 |
|
for(diskio_stats+=start; start<end; start++){ |
319 |
|
static diskio_stat_t *diskio_stats=NULL; |
320 |
|
static int num_diskio=0; |
321 |
|
|
322 |
+ |
#ifdef LINUX |
323 |
+ |
typedef struct { |
324 |
+ |
int major; |
325 |
+ |
int minor; |
326 |
+ |
} partition; |
327 |
+ |
#endif |
328 |
+ |
|
329 |
|
diskio_stat_t *get_diskio_stats(int *entries){ |
330 |
|
|
331 |
|
static int sizeof_diskio_stats=0; |
332 |
+ |
#ifndef LINUX |
333 |
|
diskio_stat_t *diskio_stats_ptr; |
334 |
+ |
#endif |
335 |
|
|
336 |
+ |
#ifdef SOLARIS |
337 |
|
kstat_ctl_t *kc; |
338 |
|
kstat_t *ksp; |
339 |
|
kstat_io_t kios; |
340 |
+ |
#endif |
341 |
+ |
#ifdef LINUX |
342 |
+ |
FILE *f; |
343 |
+ |
char *line_ptr; |
344 |
+ |
int major, minor; |
345 |
+ |
int has_pp_stats = 1; |
346 |
+ |
static partition *parts = NULL; |
347 |
+ |
static int alloc_parts = 0; |
348 |
+ |
int i, n; |
349 |
+ |
time_t now; |
350 |
+ |
const char *format; |
351 |
+ |
#endif |
352 |
+ |
#ifdef FREEBSD |
353 |
+ |
static struct statinfo stats; |
354 |
+ |
static int stats_init = 0; |
355 |
+ |
int counter; |
356 |
+ |
struct device_selection *dev_sel = NULL; |
357 |
+ |
int n_selected, n_selections; |
358 |
+ |
long sel_gen; |
359 |
+ |
struct devstat *dev_ptr; |
360 |
+ |
#endif |
361 |
+ |
#ifdef NETBSD |
362 |
+ |
struct disk_sysctl *stats; |
363 |
+ |
#endif |
364 |
+ |
#ifdef OPENBSD |
365 |
+ |
struct diskstats *stats; |
366 |
+ |
#endif |
367 |
+ |
#ifdef NETBSD |
368 |
+ |
#define MIBSIZE 3 |
369 |
+ |
#endif |
370 |
+ |
#ifdef OPENBSD |
371 |
+ |
#define MIBSIZE 2 |
372 |
+ |
#endif |
373 |
+ |
#if defined(NETBSD) || defined(OPENBSD) |
374 |
+ |
int num_disks, i; |
375 |
+ |
int mib[MIBSIZE]; |
376 |
+ |
size_t size; |
377 |
+ |
#endif |
378 |
|
|
379 |
+ |
num_diskio=0; |
380 |
+ |
|
381 |
+ |
#if defined(NETBSD) || defined(OPENBSD) |
382 |
+ |
mib[0] = CTL_HW; |
383 |
+ |
mib[1] = HW_DISKSTATS; |
384 |
+ |
#ifdef NETBSD |
385 |
+ |
mib[2] = sizeof(struct disk_sysctl); |
386 |
+ |
#endif |
387 |
+ |
|
388 |
+ |
if (sysctl(mib, MIBSIZE, NULL, &size, NULL, 0) < 0) { |
389 |
+ |
return NULL; |
390 |
+ |
} |
391 |
+ |
|
392 |
+ |
#ifdef NETBSD |
393 |
+ |
num_disks = size / sizeof(struct disk_sysctl); |
394 |
+ |
#else |
395 |
+ |
num_disks = size / sizeof(struct diskstats); |
396 |
+ |
#endif |
397 |
+ |
|
398 |
+ |
stats = malloc(size); |
399 |
+ |
if (stats == NULL) { |
400 |
+ |
return NULL; |
401 |
+ |
} |
402 |
+ |
|
403 |
+ |
if (sysctl(mib, MIBSIZE, stats, &size, NULL, 0) < 0) { |
404 |
+ |
return NULL; |
405 |
+ |
} |
406 |
+ |
|
407 |
+ |
for (i = 0; i < num_disks; i++) { |
408 |
+ |
u_int64_t rbytes, wbytes; |
409 |
+ |
|
410 |
+ |
#ifdef NETBSD |
411 |
+ |
#ifdef HAVE_DK_RBYTES |
412 |
+ |
rbytes = stats[i].dk_rbytes; |
413 |
+ |
wbytes = stats[i].dk_wbytes; |
414 |
+ |
#else |
415 |
+ |
/* Before 1.7, NetBSD merged reads and writes. */ |
416 |
+ |
rbytes = wbytes = stats[i].dk_bytes; |
417 |
+ |
#endif |
418 |
+ |
#else |
419 |
+ |
rbytes = wbytes = stats[i].ds_bytes; |
420 |
+ |
#endif |
421 |
+ |
|
422 |
+ |
/* Don't keep stats for disks that have never been used. */ |
423 |
+ |
if (rbytes == 0 && wbytes == 0) { |
424 |
+ |
continue; |
425 |
+ |
} |
426 |
+ |
|
427 |
+ |
diskio_stats = diskio_stat_malloc(num_diskio + 1, |
428 |
+ |
&sizeof_diskio_stats, |
429 |
+ |
diskio_stats); |
430 |
+ |
if (diskio_stats == NULL) { |
431 |
+ |
return NULL; |
432 |
+ |
} |
433 |
+ |
diskio_stats_ptr = diskio_stats + num_diskio; |
434 |
+ |
|
435 |
+ |
diskio_stats_ptr->read_bytes = rbytes; |
436 |
+ |
diskio_stats_ptr->write_bytes = wbytes; |
437 |
+ |
if (diskio_stats_ptr->disk_name != NULL) { |
438 |
+ |
free(diskio_stats_ptr->disk_name); |
439 |
+ |
} |
440 |
+ |
#ifdef NETBSD |
441 |
+ |
diskio_stats_ptr->disk_name = strdup(stats[i].dk_name); |
442 |
+ |
#else |
443 |
+ |
asprintf((&diskio_stats_ptr->disk_name), "%s%d", "disk", i); |
444 |
+ |
#endif |
445 |
+ |
diskio_stats_ptr->systime = time(NULL); |
446 |
+ |
|
447 |
+ |
num_diskio++; |
448 |
+ |
} |
449 |
+ |
|
450 |
+ |
free(stats); |
451 |
+ |
#endif |
452 |
+ |
|
453 |
+ |
#ifdef FREEBSD |
454 |
+ |
if (!stats_init) { |
455 |
+ |
stats.dinfo=malloc(sizeof(struct devinfo)); |
456 |
+ |
if(stats.dinfo==NULL) return NULL; |
457 |
+ |
bzero(stats.dinfo, sizeof(struct devinfo)); |
458 |
+ |
stats_init = 1; |
459 |
+ |
} |
460 |
+ |
#ifdef FREEBSD5 |
461 |
+ |
if ((devstat_getdevs(NULL, &stats)) < 0) return NULL; |
462 |
+ |
/* Not aware of a get all devices, so i said 999. If we ever |
463 |
+ |
* find a machine with more than 999 disks, then i'll change |
464 |
+ |
* this number :) |
465 |
+ |
*/ |
466 |
+ |
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; |
467 |
+ |
#else |
468 |
+ |
if ((getdevs(&stats)) < 0) return NULL; |
469 |
+ |
/* Not aware of a get all devices, so i said 999. If we ever |
470 |
+ |
* find a machine with more than 999 disks, then i'll change |
471 |
+ |
* this number :) |
472 |
+ |
*/ |
473 |
+ |
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; |
474 |
+ |
#endif |
475 |
+ |
|
476 |
+ |
for(counter=0;counter<stats.dinfo->numdevs;counter++){ |
477 |
+ |
dev_ptr=&stats.dinfo->devices[dev_sel[counter].position]; |
478 |
+ |
|
479 |
+ |
/* Throw away devices that have done nothing, ever.. Eg "odd" |
480 |
+ |
* devices.. like mem, proc.. and also doesn't report floppy |
481 |
+ |
* drives etc unless they are doing stuff :) |
482 |
+ |
*/ |
483 |
+ |
#ifdef FREEBSD5 |
484 |
+ |
if((dev_ptr->bytes[DEVSTAT_READ]==0) && (dev_ptr->bytes[DEVSTAT_WRITE]==0)) continue; |
485 |
+ |
#else |
486 |
+ |
if((dev_ptr->bytes_read==0) && (dev_ptr->bytes_written==0)) continue; |
487 |
+ |
#endif |
488 |
+ |
if((diskio_stats=diskio_stat_malloc(num_diskio+1, &sizeof_diskio_stats, diskio_stats))==NULL){ |
489 |
+ |
return NULL; |
490 |
+ |
} |
491 |
+ |
diskio_stats_ptr=diskio_stats+num_diskio; |
492 |
+ |
|
493 |
+ |
#ifdef FREEBSD5 |
494 |
+ |
diskio_stats_ptr->read_bytes=dev_ptr->bytes[DEVSTAT_READ]; |
495 |
+ |
diskio_stats_ptr->write_bytes=dev_ptr->bytes[DEVSTAT_WRITE]; |
496 |
+ |
#else |
497 |
+ |
diskio_stats_ptr->read_bytes=dev_ptr->bytes_read; |
498 |
+ |
diskio_stats_ptr->write_bytes=dev_ptr->bytes_written; |
499 |
+ |
#endif |
500 |
+ |
if(diskio_stats_ptr->disk_name!=NULL) free(diskio_stats_ptr->disk_name); |
501 |
+ |
asprintf((&diskio_stats_ptr->disk_name), "%s%d", dev_ptr->device_name, dev_ptr->unit_number); |
502 |
+ |
diskio_stats_ptr->systime=time(NULL); |
503 |
+ |
|
504 |
+ |
num_diskio++; |
505 |
+ |
} |
506 |
+ |
free(dev_sel); |
507 |
+ |
|
508 |
+ |
#endif |
509 |
+ |
#ifdef SOLARIS |
510 |
|
if ((kc = kstat_open()) == NULL) { |
511 |
|
return NULL; |
512 |
|
} |
513 |
|
|
206 |
– |
num_diskio=0; |
207 |
– |
|
514 |
|
for (ksp = kc->kc_chain; ksp; ksp = ksp->ks_next) { |
515 |
|
if (!strcmp(ksp->ks_class, "disk")) { |
516 |
|
|
532 |
|
|
533 |
|
if(diskio_stats_ptr->disk_name!=NULL) free(diskio_stats_ptr->disk_name); |
534 |
|
|
535 |
< |
diskio_stats_ptr->disk_name=strdup(ksp->ks_name); |
535 |
> |
diskio_stats_ptr->disk_name=strdup((char *) get_svr_from_bsd(ksp->ks_name)); |
536 |
> |
diskio_stats_ptr->systime=time(NULL); |
537 |
|
num_diskio++; |
538 |
|
} |
539 |
|
} |
540 |
|
|
541 |
|
kstat_close(kc); |
542 |
+ |
#endif |
543 |
|
|
544 |
+ |
#ifdef LINUX |
545 |
+ |
num_diskio = 0; |
546 |
+ |
n = 0; |
547 |
+ |
|
548 |
+ |
/* Read /proc/partitions to find what devices exist. Recent 2.4 kernels |
549 |
+ |
have statistics in here too, so we can use those directly. |
550 |
+ |
2.6 kernels have /proc/diskstats instead with almost (but not quite) |
551 |
+ |
the same format. */ |
552 |
+ |
|
553 |
+ |
f = fopen("/proc/diskstats", "r"); |
554 |
+ |
format = " %d %d %19s %*d %*d %lld %*d %*d %*d %lld"; |
555 |
+ |
if (f == NULL) { |
556 |
+ |
f = fopen("/proc/partitions", "r"); |
557 |
+ |
format = " %d %d %*d %19s %*d %*d %lld %*d %*d %*d %lld"; |
558 |
+ |
} |
559 |
+ |
if (f == NULL) goto out; |
560 |
+ |
now = time(NULL); |
561 |
+ |
|
562 |
+ |
while ((line_ptr = f_read_line(f, "")) != NULL) { |
563 |
+ |
char name[20]; |
564 |
+ |
char *s; |
565 |
+ |
long long rsect, wsect; |
566 |
+ |
|
567 |
+ |
int nr = sscanf(line_ptr, format, |
568 |
+ |
&major, &minor, name, &rsect, &wsect); |
569 |
+ |
if (nr < 3) continue; |
570 |
+ |
|
571 |
+ |
/* Skip device names ending in numbers, since they're |
572 |
+ |
partitions. */ |
573 |
+ |
s = name; |
574 |
+ |
while (*s != '\0') s++; |
575 |
+ |
--s; |
576 |
+ |
if (*s >= '0' && *s <= '9') continue; |
577 |
+ |
|
578 |
+ |
if (nr < 5) { |
579 |
+ |
has_pp_stats = 0; |
580 |
+ |
rsect = 0; |
581 |
+ |
wsect = 0; |
582 |
+ |
} |
583 |
+ |
|
584 |
+ |
diskio_stats = diskio_stat_malloc(n + 1, &sizeof_diskio_stats, |
585 |
+ |
diskio_stats); |
586 |
+ |
if (diskio_stats == NULL) goto out; |
587 |
+ |
if (n >= alloc_parts) { |
588 |
+ |
alloc_parts += 16; |
589 |
+ |
parts = realloc(parts, alloc_parts * sizeof *parts); |
590 |
+ |
if (parts == NULL) { |
591 |
+ |
alloc_parts = 0; |
592 |
+ |
goto out; |
593 |
+ |
} |
594 |
+ |
} |
595 |
+ |
|
596 |
+ |
if (diskio_stats[n].disk_name != NULL) |
597 |
+ |
free(diskio_stats[n].disk_name); |
598 |
+ |
diskio_stats[n].disk_name = strdup(name); |
599 |
+ |
diskio_stats[n].read_bytes = rsect * 512; |
600 |
+ |
diskio_stats[n].write_bytes = wsect * 512; |
601 |
+ |
diskio_stats[n].systime = now; |
602 |
+ |
parts[n].major = major; |
603 |
+ |
parts[n].minor = minor; |
604 |
+ |
|
605 |
+ |
n++; |
606 |
+ |
} |
607 |
+ |
|
608 |
+ |
fclose(f); |
609 |
+ |
f = NULL; |
610 |
+ |
|
611 |
+ |
if (!has_pp_stats) { |
612 |
+ |
/* This is an older kernel where /proc/partitions doesn't |
613 |
+ |
contain stats. Read what we can from /proc/stat instead, and |
614 |
+ |
fill in the appropriate bits of the list allocated above. */ |
615 |
+ |
|
616 |
+ |
f = fopen("/proc/stat", "r"); |
617 |
+ |
if (f == NULL) goto out; |
618 |
+ |
now = time(NULL); |
619 |
+ |
|
620 |
+ |
line_ptr = f_read_line(f, "disk_io:"); |
621 |
+ |
if (line_ptr == NULL) goto out; |
622 |
+ |
|
623 |
+ |
while((line_ptr=strchr(line_ptr, ' '))!=NULL){ |
624 |
+ |
long long rsect, wsect; |
625 |
+ |
|
626 |
+ |
if (*++line_ptr == '\0') break; |
627 |
+ |
|
628 |
+ |
if((sscanf(line_ptr, |
629 |
+ |
"(%d,%d):(%*d, %*d, %lld, %*d, %lld)", |
630 |
+ |
&major, &minor, &rsect, &wsect)) != 4) { |
631 |
+ |
continue; |
632 |
+ |
} |
633 |
+ |
|
634 |
+ |
/* Find the corresponding device from earlier. |
635 |
+ |
Just to add to the fun, "minor" is actually the disk |
636 |
+ |
number, not the device minor, so we need to figure |
637 |
+ |
out the real minor number based on the major! |
638 |
+ |
This list is not exhaustive; if you're running |
639 |
+ |
an older kernel you probably don't have fancy |
640 |
+ |
I2O hardware anyway... */ |
641 |
+ |
switch (major) { |
642 |
+ |
case 3: |
643 |
+ |
case 21: |
644 |
+ |
case 22: |
645 |
+ |
case 33: |
646 |
+ |
case 34: |
647 |
+ |
case 36: |
648 |
+ |
case 56: |
649 |
+ |
case 57: |
650 |
+ |
case 88: |
651 |
+ |
case 89: |
652 |
+ |
case 90: |
653 |
+ |
case 91: |
654 |
+ |
minor *= 64; |
655 |
+ |
break; |
656 |
+ |
case 9: |
657 |
+ |
case 43: |
658 |
+ |
break; |
659 |
+ |
default: |
660 |
+ |
minor *= 16; |
661 |
+ |
break; |
662 |
+ |
} |
663 |
+ |
for (i = 0; i < n; i++) { |
664 |
+ |
if (major == parts[i].major |
665 |
+ |
&& minor == parts[i].minor) |
666 |
+ |
break; |
667 |
+ |
} |
668 |
+ |
if (i == n) continue; |
669 |
+ |
|
670 |
+ |
/* We read the number of blocks. Blocks are stored in |
671 |
+ |
512 bytes */ |
672 |
+ |
diskio_stats[i].read_bytes = rsect * 512; |
673 |
+ |
diskio_stats[i].write_bytes = wsect * 512; |
674 |
+ |
diskio_stats[i].systime = now; |
675 |
+ |
} |
676 |
+ |
} |
677 |
+ |
|
678 |
+ |
num_diskio = n; |
679 |
+ |
out: |
680 |
+ |
if (f != NULL) fclose(f); |
681 |
+ |
#endif |
682 |
+ |
|
683 |
+ |
#ifdef CYGWIN |
684 |
+ |
return NULL; |
685 |
+ |
#endif |
686 |
+ |
|
687 |
|
*entries=num_diskio; |
688 |
|
|
689 |
|
return diskio_stats; |
690 |
|
} |
691 |
|
|
692 |
|
diskio_stat_t *get_diskio_stats_diff(int *entries){ |
693 |
< |
static diskio_stat_t *diskio_stats_diff=NULL; |
694 |
< |
static int sizeof_diskio_stats_diff=0; |
695 |
< |
diskio_stat_t *diskio_stats_diff_ptr, *diskio_stats_ptr; |
696 |
< |
int disks, x, y; |
693 |
> |
static diskio_stat_t *diff = NULL; |
694 |
> |
static int diff_count = 0; |
695 |
> |
diskio_stat_t *src, *dest; |
696 |
> |
int i, j, new_count; |
697 |
|
|
698 |
< |
if(diskio_stats==NULL){ |
699 |
< |
diskio_stats_ptr=get_diskio_stats(&disks); |
700 |
< |
*entries=disks; |
250 |
< |
return diskio_stats_ptr; |
698 |
> |
if (diskio_stats == NULL) { |
699 |
> |
/* No previous stats, so we can't calculate a difference. */ |
700 |
> |
return get_diskio_stats(entries); |
701 |
|
} |
702 |
|
|
703 |
< |
diskio_stats_diff=diskio_stat_malloc(num_diskio, &sizeof_diskio_stats_diff, diskio_stats_diff); |
704 |
< |
if(diskio_stats_diff==NULL){ |
703 |
> |
/* Resize the results array to match the previous stats. */ |
704 |
> |
diff = diskio_stat_malloc(num_diskio, &diff_count, diff); |
705 |
> |
if (diff == NULL) { |
706 |
|
return NULL; |
707 |
|
} |
708 |
|
|
709 |
< |
diskio_stats_diff_ptr=diskio_stats_diff; |
710 |
< |
diskio_stats_ptr=diskio_stats; |
709 |
> |
/* Copy the previous stats into the result. */ |
710 |
> |
for (i = 0; i < diff_count; i++) { |
711 |
> |
src = &diskio_stats[i]; |
712 |
> |
dest = &diff[i]; |
713 |
|
|
714 |
< |
for(disks=0;disks<num_diskio;disks++){ |
715 |
< |
if(diskio_stats_diff_ptr->disk_name!=NULL){ |
263 |
< |
free(diskio_stats_diff_ptr->disk_name); |
714 |
> |
if (dest->disk_name != NULL) { |
715 |
> |
free(dest->disk_name); |
716 |
|
} |
717 |
< |
diskio_stats_diff_ptr->disk_name=strdup(diskio_stats_ptr->disk_name); |
718 |
< |
diskio_stats_diff_ptr->read_bytes=diskio_stats_ptr->read_bytes; |
719 |
< |
diskio_stats_diff_ptr->write_bytes=diskio_stats_ptr->write_bytes; |
720 |
< |
diskio_stats_diff_ptr->systime=diskio_stats_ptr->systime; |
717 |
> |
dest->disk_name = strdup(src->disk_name); |
718 |
> |
dest->read_bytes = src->read_bytes; |
719 |
> |
dest->write_bytes = src->write_bytes; |
720 |
> |
dest->systime = src->systime; |
721 |
> |
} |
722 |
|
|
723 |
< |
diskio_stats_diff_ptr++; |
724 |
< |
diskio_stats_ptr++; |
723 |
> |
/* Get a new set of stats. */ |
724 |
> |
if (get_diskio_stats(&new_count) == NULL) { |
725 |
> |
return NULL; |
726 |
|
} |
727 |
|
|
728 |
< |
diskio_stats_ptr=get_diskio_stats(&disks); |
729 |
< |
diskio_stats_diff_ptr=diskio_stats_diff; |
728 |
> |
/* For each previous stat... */ |
729 |
> |
for (i = 0; i < diff_count; i++) { |
730 |
> |
dest = &diff[i]; |
731 |
|
|
732 |
< |
for(x=0;x<sizeof_diskio_stats_diff;x++){ |
733 |
< |
|
734 |
< |
if((strcmp(diskio_stats_diff_ptr->disk_name, diskio_stats_ptr->disk_name))==0){ |
735 |
< |
diskio_stats_diff_ptr->read_bytes=diskio_stats_ptr->read_bytes-diskio_stats_diff_ptr->read_bytes; |
736 |
< |
diskio_stats_diff_ptr->write_bytes=diskio_stats_ptr->write_bytes-diskio_stats_diff_ptr->write_bytes; |
737 |
< |
diskio_stats_diff_ptr->systime=diskio_stats_ptr->systime-diskio_stats_diff_ptr->systime; |
738 |
< |
}else{ |
284 |
< |
diskio_stats_ptr=diskio_stats; |
285 |
< |
for(y=0;y<disks;y++){ |
286 |
< |
if((strcmp(diskio_stats_diff_ptr->disk_name, diskio_stats_ptr->disk_name))==0){ |
287 |
< |
diskio_stats_diff_ptr->read_bytes=diskio_stats_ptr->read_bytes-diskio_stats_diff_ptr->read_bytes; |
288 |
< |
diskio_stats_diff_ptr->write_bytes=diskio_stats_ptr->write_bytes-diskio_stats_diff_ptr->write_bytes; |
289 |
< |
diskio_stats_diff_ptr->systime=diskio_stats_ptr->systime-diskio_stats_diff_ptr->systime; |
290 |
< |
|
291 |
< |
break; |
292 |
< |
} |
293 |
< |
|
294 |
< |
diskio_stats_ptr++; |
732 |
> |
/* ... find the corresponding new stat ... */ |
733 |
> |
for (j = 0; j < new_count; j++) { |
734 |
> |
/* Try the new stat in the same position first, |
735 |
> |
since that's most likely to be it. */ |
736 |
> |
src = &diskio_stats[(i + j) % new_count]; |
737 |
> |
if (strcmp(src->disk_name, dest->disk_name) == 0) { |
738 |
> |
break; |
739 |
|
} |
740 |
|
} |
741 |
+ |
if (j == new_count) { |
742 |
+ |
/* No match found. */ |
743 |
+ |
continue; |
744 |
+ |
} |
745 |
|
|
746 |
< |
diskio_stats_ptr++; |
747 |
< |
diskio_stats_diff_ptr++; |
748 |
< |
|
746 |
> |
/* ... and subtract the previous stat from it to get the |
747 |
> |
difference. */ |
748 |
> |
dest->read_bytes = src->read_bytes - dest->read_bytes; |
749 |
> |
dest->write_bytes = src->write_bytes - dest->write_bytes; |
750 |
> |
dest->systime = src->systime - dest->systime; |
751 |
|
} |
752 |
< |
|
753 |
< |
*entries=sizeof_diskio_stats_diff; |
754 |
< |
return diskio_stats_diff; |
752 |
> |
|
753 |
> |
*entries = diff_count; |
754 |
> |
return diff; |
755 |
|
} |
756 |
+ |
|