1 |
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/* |
2 |
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* i-scream central monitoring system |
3 |
< |
* http://www.i-scream.org.uk |
4 |
< |
* Copyright (C) 2000-2002 i-scream |
3 |
> |
* http://www.i-scream.org |
4 |
> |
* Copyright (C) 2000-2003 i-scream |
5 |
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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 |
22 |
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#include "config.h" |
23 |
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#endif |
24 |
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|
25 |
– |
#include "statgrab.h" |
26 |
– |
#include <stdlib.h> |
25 |
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#include <stdio.h> |
26 |
< |
#include "ukcprog.h" |
26 |
> |
#include <stdlib.h> |
27 |
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#include <string.h> |
28 |
+ |
#include <time.h> |
29 |
+ |
#include "statgrab.h" |
30 |
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|
31 |
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#ifdef SOLARIS |
32 |
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#include <sys/mnttab.h> |
33 |
– |
#include <sys/types.h> |
33 |
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#include <sys/statvfs.h> |
34 |
< |
|
34 |
> |
#include <kstat.h> |
35 |
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#define VALID_FS_TYPES {"ufs", "tmpfs"} |
36 |
+ |
#endif |
37 |
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|
38 |
+ |
#if defined(LINUX) || defined(CYGWIN) |
39 |
+ |
#include <mntent.h> |
40 |
+ |
#include <sys/vfs.h> |
41 |
+ |
#include "tools.h" |
42 |
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#endif |
43 |
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|
44 |
+ |
#ifdef LINUX |
45 |
+ |
#define VALID_FS_TYPES {"adfs", "affs", "befs", "bfs", "efs", "ext2", \ |
46 |
+ |
"ext3", "vxfs", "hfs", "hfsplus", "hpfs", "jffs", \ |
47 |
+ |
"jffs2", "minix", "msdos", "ntfs", "qnx4", "ramfs", \ |
48 |
+ |
"rootfs", "reiserfs", "sysv", "v7", "udf", "ufs", \ |
49 |
+ |
"umsdos", "vfat", "xfs", "jfs"} |
50 |
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#endif |
51 |
+ |
|
52 |
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#ifdef CYGWIN |
53 |
+ |
#define VALID_FS_TYPES {"user"} |
54 |
+ |
#endif |
55 |
+ |
|
56 |
+ |
#ifdef ALLBSD |
57 |
+ |
#include <sys/param.h> |
58 |
+ |
#include <sys/ucred.h> |
59 |
+ |
#include <sys/mount.h> |
60 |
+ |
#endif |
61 |
+ |
#ifdef FREEBSD |
62 |
+ |
#include <sys/dkstat.h> |
63 |
+ |
#include <devstat.h> |
64 |
+ |
#define VALID_FS_TYPES {"hpfs", "msdosfs", "ntfs", "udf", "ext2fs", \ |
65 |
+ |
"ufs", "mfs"} |
66 |
+ |
#endif |
67 |
+ |
#ifdef NETBSD |
68 |
+ |
#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", \ |
72 |
+ |
"ntfs"} |
73 |
+ |
#endif |
74 |
+ |
|
75 |
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#define START_VAL 1 |
76 |
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|
77 |
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char *copy_string(char *orig_ptr, const char *newtext){ |
96 |
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|
97 |
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disk_stats++; |
98 |
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} |
64 |
– |
|
99 |
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} |
100 |
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|
101 |
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disk_stat_t *get_disk_stats(int *entries){ |
105 |
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|
106 |
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char *fs_types[] = VALID_FS_TYPES; |
107 |
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int x, valid_type; |
74 |
– |
|
108 |
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int num_disks=0; |
109 |
< |
struct mnttab mp; |
77 |
< |
struct statvfs fs; |
109 |
> |
#if defined(LINUX) || defined (SOLARIS) || defined(CYGWIN) |
110 |
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FILE *f; |
111 |
+ |
#endif |
112 |
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|
113 |
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disk_stat_t *disk_ptr; |
114 |
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|
115 |
+ |
#ifdef SOLARIS |
116 |
+ |
struct mnttab mp; |
117 |
+ |
struct statvfs fs; |
118 |
+ |
#endif |
119 |
+ |
#if defined(LINUX) || defined(CYGWIN) |
120 |
+ |
struct mntent *mp; |
121 |
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struct statfs fs; |
122 |
+ |
#endif |
123 |
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#ifdef ALLBSD |
124 |
+ |
int nummnt; |
125 |
+ |
struct statfs *mp; |
126 |
+ |
#endif |
127 |
+ |
|
128 |
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if(watermark==-1){ |
129 |
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disk_stats=malloc(START_VAL * sizeof(disk_stat_t)); |
130 |
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if(disk_stats==NULL){ |
133 |
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watermark=START_VAL; |
134 |
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init_disk_stat(0, watermark-1, disk_stats); |
135 |
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} |
136 |
+ |
#ifdef ALLBSD |
137 |
+ |
nummnt=getmntinfo(&mp , MNT_LOCAL); |
138 |
+ |
if (nummnt<=0){ |
139 |
+ |
return NULL; |
140 |
+ |
} |
141 |
+ |
for(;nummnt--; mp++){ |
142 |
+ |
valid_type=0; |
143 |
+ |
for(x=0;x<((sizeof(fs_types))/(sizeof(char*)));x++){ |
144 |
+ |
if(strcmp(mp->f_fstypename, fs_types[x]) ==0){ |
145 |
+ |
valid_type=1; |
146 |
+ |
break; |
147 |
+ |
} |
148 |
+ |
} |
149 |
+ |
#endif |
150 |
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|
151 |
+ |
#if defined(LINUX) || defined(CYGWIN) |
152 |
+ |
if ((f=setmntent("/etc/mtab", "r" ))==NULL){ |
153 |
+ |
return NULL; |
154 |
+ |
} |
155 |
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|
156 |
+ |
while((mp=getmntent(f))){ |
157 |
+ |
if((statfs(mp->mnt_dir, &fs)) !=0){ |
158 |
+ |
continue; |
159 |
+ |
} |
160 |
+ |
|
161 |
+ |
valid_type=0; |
162 |
+ |
for(x=0;x<((sizeof(fs_types))/(sizeof(char*)));x++){ |
163 |
+ |
if(strcmp(mp->mnt_type, fs_types[x]) ==0){ |
164 |
+ |
valid_type=1; |
165 |
+ |
break; |
166 |
+ |
} |
167 |
+ |
} |
168 |
+ |
#endif |
169 |
+ |
|
170 |
+ |
#ifdef SOLARIS |
171 |
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if ((f=fopen("/etc/mnttab", "r" ))==NULL){ |
172 |
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return NULL; |
173 |
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} |
175 |
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if ((statvfs(mp.mnt_mountp, &fs)) !=0){ |
176 |
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continue; |
177 |
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} |
99 |
– |
|
178 |
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valid_type=0; |
179 |
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for(x=0;x<((sizeof(fs_types))/(sizeof(char*)));x++){ |
180 |
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if(strcmp(mp.mnt_fstype, fs_types[x]) ==0){ |
182 |
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break; |
183 |
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} |
184 |
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} |
185 |
+ |
#endif |
186 |
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|
187 |
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if(valid_type){ |
188 |
|
if(num_disks>watermark-1){ |
197 |
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} |
198 |
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|
199 |
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disk_ptr=disk_stats+num_disks; |
200 |
< |
|
200 |
> |
#ifdef ALLBSD |
201 |
> |
if((disk_ptr->device_name=copy_string(disk_ptr->device_name, mp->f_mntfromname))==NULL){ |
202 |
> |
return NULL; |
203 |
> |
} |
204 |
> |
|
205 |
> |
if((disk_ptr->fs_type=copy_string(disk_ptr->fs_type, mp->f_fstypename))==NULL){ |
206 |
> |
return NULL; |
207 |
> |
} |
208 |
> |
|
209 |
> |
if((disk_ptr->mnt_point=copy_string(disk_ptr->mnt_point, mp->f_mntonname))==NULL){ |
210 |
> |
return NULL; |
211 |
> |
} |
212 |
> |
|
213 |
> |
disk_ptr->size = (long long)mp->f_bsize * (long long) mp->f_blocks; |
214 |
> |
disk_ptr->avail = (long long)mp->f_bsize * (long long) mp->f_bavail; |
215 |
> |
disk_ptr->used = (disk_ptr->size) - ((long long)mp->f_bsize * (long long)mp->f_bfree); |
216 |
> |
|
217 |
> |
disk_ptr->total_inodes=(long long)mp->f_files; |
218 |
> |
disk_ptr->free_inodes=(long long)mp->f_ffree; |
219 |
> |
/* Freebsd doesn't have a "available" inodes */ |
220 |
> |
disk_ptr->used_inodes=disk_ptr->total_inodes-disk_ptr->free_inodes; |
221 |
> |
#endif |
222 |
> |
#if defined(LINUX) || defined(CYGWIN) |
223 |
> |
if((disk_ptr->device_name=copy_string(disk_ptr->device_name, mp->mnt_fsname))==NULL){ |
224 |
> |
return NULL; |
225 |
> |
} |
226 |
> |
|
227 |
> |
if((disk_ptr->fs_type=copy_string(disk_ptr->fs_type, mp->mnt_type))==NULL){ |
228 |
> |
return NULL; |
229 |
> |
} |
230 |
> |
|
231 |
> |
if((disk_ptr->mnt_point=copy_string(disk_ptr->mnt_point, mp->mnt_dir))==NULL){ |
232 |
> |
return NULL; |
233 |
> |
} |
234 |
> |
disk_ptr->size = (long long)fs.f_bsize * (long long)fs.f_blocks; |
235 |
> |
disk_ptr->avail = (long long)fs.f_bsize * (long long)fs.f_bavail; |
236 |
> |
disk_ptr->used = (disk_ptr->size) - ((long long)fs.f_bsize * (long long)fs.f_bfree); |
237 |
> |
|
238 |
> |
disk_ptr->total_inodes=(long long)fs.f_files; |
239 |
> |
disk_ptr->free_inodes=(long long)fs.f_ffree; |
240 |
> |
/* Linux doesn't have a "available" inodes */ |
241 |
> |
disk_ptr->used_inodes=disk_ptr->total_inodes-disk_ptr->free_inodes; |
242 |
> |
#endif |
243 |
> |
|
244 |
> |
#ifdef SOLARIS |
245 |
|
/* Memory leak in event of realloc failing */ |
246 |
|
/* Maybe make this char[bigenough] and do strncpy's and put a null in the end? |
247 |
< |
Downside is its a bit hungry for a lot of mounts, as MNT_MAX_SIZE woul prob be upwards |
248 |
< |
of a k each */ |
247 |
> |
* Downside is its a bit hungry for a lot of mounts, as MNT_MAX_SIZE would prob |
248 |
> |
* be upwards of a k each |
249 |
> |
*/ |
250 |
|
if((disk_ptr->device_name=copy_string(disk_ptr->device_name, mp.mnt_special))==NULL){ |
251 |
|
return NULL; |
252 |
|
} |
266 |
|
disk_ptr->total_inodes=(long long)fs.f_files; |
267 |
|
disk_ptr->used_inodes=disk_ptr->total_inodes - (long long)fs.f_ffree; |
268 |
|
disk_ptr->free_inodes=(long long)fs.f_favail; |
269 |
< |
|
269 |
> |
#endif |
270 |
|
num_disks++; |
271 |
|
} |
272 |
|
} |
273 |
|
|
274 |
|
*entries=num_disks; |
275 |
|
|
276 |
< |
/* If this fails, there is very little i can do about it, so i'll ignore it :) */ |
276 |
> |
/* If this fails, there is very little i can do about it, so |
277 |
> |
I'll ignore it :) */ |
278 |
> |
#if defined(LINUX) || defined(CYGWIN) |
279 |
> |
endmntent(f); |
280 |
> |
#endif |
281 |
> |
#if defined(SOLARIS) |
282 |
|
fclose(f); |
283 |
+ |
#endif |
284 |
|
|
285 |
|
return disk_stats; |
286 |
|
|
287 |
+ |
} |
288 |
+ |
void diskio_stat_init(int start, int end, diskio_stat_t *diskio_stats){ |
289 |
+ |
|
290 |
+ |
for(diskio_stats+=start; start<end; start++){ |
291 |
+ |
diskio_stats->disk_name=NULL; |
292 |
+ |
|
293 |
+ |
diskio_stats++; |
294 |
+ |
} |
295 |
+ |
} |
296 |
+ |
|
297 |
+ |
diskio_stat_t *diskio_stat_malloc(int needed_entries, int *cur_entries, diskio_stat_t *diskio_stats){ |
298 |
+ |
|
299 |
+ |
if(diskio_stats==NULL){ |
300 |
+ |
|
301 |
+ |
if((diskio_stats=malloc(needed_entries * sizeof(diskio_stat_t)))==NULL){ |
302 |
+ |
return NULL; |
303 |
+ |
} |
304 |
+ |
diskio_stat_init(0, needed_entries, diskio_stats); |
305 |
+ |
*cur_entries=needed_entries; |
306 |
+ |
|
307 |
+ |
return diskio_stats; |
308 |
+ |
} |
309 |
+ |
|
310 |
+ |
|
311 |
+ |
if(*cur_entries<needed_entries){ |
312 |
+ |
diskio_stats=realloc(diskio_stats, (sizeof(diskio_stat_t)*needed_entries)); |
313 |
+ |
if(diskio_stats==NULL){ |
314 |
+ |
return NULL; |
315 |
+ |
} |
316 |
+ |
diskio_stat_init(*cur_entries, needed_entries, diskio_stats); |
317 |
+ |
*cur_entries=needed_entries; |
318 |
+ |
} |
319 |
+ |
|
320 |
+ |
return diskio_stats; |
321 |
+ |
} |
322 |
+ |
|
323 |
+ |
static diskio_stat_t *diskio_stats=NULL; |
324 |
+ |
static int num_diskio=0; |
325 |
+ |
|
326 |
+ |
#ifdef LINUX |
327 |
+ |
typedef struct { |
328 |
+ |
int major; |
329 |
+ |
int minor; |
330 |
+ |
} partition; |
331 |
+ |
#endif |
332 |
+ |
|
333 |
+ |
diskio_stat_t *get_diskio_stats(int *entries){ |
334 |
+ |
|
335 |
+ |
static int sizeof_diskio_stats=0; |
336 |
+ |
#ifndef LINUX |
337 |
+ |
diskio_stat_t *diskio_stats_ptr; |
338 |
+ |
#endif |
339 |
+ |
|
340 |
+ |
#ifdef SOLARIS |
341 |
+ |
kstat_ctl_t *kc; |
342 |
+ |
kstat_t *ksp; |
343 |
+ |
kstat_io_t kios; |
344 |
+ |
#endif |
345 |
+ |
#ifdef LINUX |
346 |
+ |
FILE *f; |
347 |
+ |
char *line_ptr; |
348 |
+ |
int major, minor; |
349 |
+ |
int has_pp_stats = 1; |
350 |
+ |
static partition *parts = NULL; |
351 |
+ |
static int alloc_parts = 0; |
352 |
+ |
int i, n; |
353 |
+ |
time_t now; |
354 |
+ |
const char *format; |
355 |
+ |
#endif |
356 |
+ |
#ifdef FREEBSD |
357 |
+ |
static struct statinfo stats; |
358 |
+ |
static int stats_init = 0; |
359 |
+ |
int counter; |
360 |
+ |
struct device_selection *dev_sel = NULL; |
361 |
+ |
int n_selected, n_selections; |
362 |
+ |
long sel_gen; |
363 |
+ |
struct devstat *dev_ptr; |
364 |
+ |
#endif |
365 |
+ |
#ifdef NETBSD |
366 |
+ |
struct disk_sysctl *stats; |
367 |
+ |
int num_disks, i; |
368 |
+ |
int mib[3]; |
369 |
+ |
size_t size; |
370 |
+ |
#endif |
371 |
+ |
|
372 |
+ |
num_diskio=0; |
373 |
+ |
|
374 |
+ |
#ifdef NETBSD |
375 |
+ |
mib[0] = CTL_HW; |
376 |
+ |
mib[1] = HW_DISKSTATS; |
377 |
+ |
mib[2] = sizeof(struct disk_sysctl); |
378 |
+ |
|
379 |
+ |
if (sysctl(mib, 3, NULL, &size, NULL, 0) < 0) { |
380 |
+ |
return NULL; |
381 |
+ |
} |
382 |
+ |
num_disks = size / sizeof(struct disk_sysctl); |
383 |
+ |
|
384 |
+ |
stats = malloc(size); |
385 |
+ |
if (stats == NULL) { |
386 |
+ |
return NULL; |
387 |
+ |
} |
388 |
+ |
|
389 |
+ |
if (sysctl(mib, 3, stats, &size, NULL, 0) < 0) { |
390 |
+ |
return NULL; |
391 |
+ |
} |
392 |
+ |
|
393 |
+ |
for (i = 0; i < num_disks; i++) { |
394 |
+ |
u_int64_t rbytes, wbytes; |
395 |
+ |
|
396 |
+ |
#ifdef HAVE_DK_RBYTES |
397 |
+ |
rbytes = stats[i].dk_rbytes; |
398 |
+ |
wbytes = stats[i].dk_wbytes; |
399 |
+ |
#else |
400 |
+ |
/* Before 1.7, NetBSD merged reads and writes. */ |
401 |
+ |
rbytes = wbytes = stats[i].dk_bytes; |
402 |
+ |
#endif |
403 |
+ |
|
404 |
+ |
/* Don't keep stats for disks that have never been used. */ |
405 |
+ |
if (rbytes == 0 && wbytes == 0) { |
406 |
+ |
continue; |
407 |
+ |
} |
408 |
+ |
|
409 |
+ |
diskio_stats = diskio_stat_malloc(num_diskio + 1, |
410 |
+ |
&sizeof_diskio_stats, |
411 |
+ |
diskio_stats); |
412 |
+ |
if (diskio_stats == NULL) { |
413 |
+ |
return NULL; |
414 |
+ |
} |
415 |
+ |
diskio_stats_ptr = diskio_stats + num_diskio; |
416 |
+ |
|
417 |
+ |
diskio_stats_ptr->read_bytes = rbytes; |
418 |
+ |
diskio_stats_ptr->write_bytes = wbytes; |
419 |
+ |
if (diskio_stats_ptr->disk_name != NULL) { |
420 |
+ |
free(diskio_stats_ptr->disk_name); |
421 |
+ |
} |
422 |
+ |
diskio_stats_ptr->disk_name = strdup(stats[i].dk_name); |
423 |
+ |
diskio_stats_ptr->systime = time(NULL); |
424 |
+ |
|
425 |
+ |
num_diskio++; |
426 |
+ |
} |
427 |
+ |
|
428 |
+ |
free(stats); |
429 |
+ |
#endif |
430 |
+ |
|
431 |
+ |
#ifdef FREEBSD |
432 |
+ |
if (!stats_init) { |
433 |
+ |
stats.dinfo=malloc(sizeof(struct devinfo)); |
434 |
+ |
if(stats.dinfo==NULL) return NULL; |
435 |
+ |
bzero(stats.dinfo, sizeof(struct devinfo)); |
436 |
+ |
stats_init = 1; |
437 |
+ |
} |
438 |
+ |
#ifdef FREEBSD5 |
439 |
+ |
if ((devstat_getdevs(NULL, &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 (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; |
445 |
+ |
#else |
446 |
+ |
if ((getdevs(&stats)) < 0) return NULL; |
447 |
+ |
/* Not aware of a get all devices, so i said 999. If we ever |
448 |
+ |
* find a machine with more than 999 disks, then i'll change |
449 |
+ |
* this number :) |
450 |
+ |
*/ |
451 |
+ |
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; |
452 |
+ |
#endif |
453 |
+ |
|
454 |
+ |
for(counter=0;counter<stats.dinfo->numdevs;counter++){ |
455 |
+ |
dev_ptr=&stats.dinfo->devices[dev_sel[counter].position]; |
456 |
+ |
|
457 |
+ |
/* Throw away devices that have done nothing, ever.. Eg "odd" |
458 |
+ |
* devices.. like mem, proc.. and also doesn't report floppy |
459 |
+ |
* drives etc unless they are doing stuff :) |
460 |
+ |
*/ |
461 |
+ |
#ifdef FREEBSD5 |
462 |
+ |
if((dev_ptr->bytes[DEVSTAT_READ]==0) && (dev_ptr->bytes[DEVSTAT_WRITE]==0)) continue; |
463 |
+ |
#else |
464 |
+ |
if((dev_ptr->bytes_read==0) && (dev_ptr->bytes_written==0)) continue; |
465 |
+ |
#endif |
466 |
+ |
if((diskio_stats=diskio_stat_malloc(num_diskio+1, &sizeof_diskio_stats, diskio_stats))==NULL){ |
467 |
+ |
return NULL; |
468 |
+ |
} |
469 |
+ |
diskio_stats_ptr=diskio_stats+num_diskio; |
470 |
+ |
|
471 |
+ |
#ifdef FREEBSD5 |
472 |
+ |
diskio_stats_ptr->read_bytes=dev_ptr->bytes[DEVSTAT_READ]; |
473 |
+ |
diskio_stats_ptr->write_bytes=dev_ptr->bytes[DEVSTAT_WRITE]; |
474 |
+ |
#else |
475 |
+ |
diskio_stats_ptr->read_bytes=dev_ptr->bytes_read; |
476 |
+ |
diskio_stats_ptr->write_bytes=dev_ptr->bytes_written; |
477 |
+ |
#endif |
478 |
+ |
if(diskio_stats_ptr->disk_name!=NULL) free(diskio_stats_ptr->disk_name); |
479 |
+ |
asprintf((&diskio_stats_ptr->disk_name), "%s%d", dev_ptr->device_name, dev_ptr->unit_number); |
480 |
+ |
diskio_stats_ptr->systime=time(NULL); |
481 |
+ |
|
482 |
+ |
num_diskio++; |
483 |
+ |
} |
484 |
+ |
free(dev_sel); |
485 |
+ |
|
486 |
+ |
#endif |
487 |
+ |
#ifdef SOLARIS |
488 |
+ |
if ((kc = kstat_open()) == NULL) { |
489 |
+ |
return NULL; |
490 |
+ |
} |
491 |
+ |
|
492 |
+ |
for (ksp = kc->kc_chain; ksp; ksp = ksp->ks_next) { |
493 |
+ |
if (!strcmp(ksp->ks_class, "disk")) { |
494 |
+ |
|
495 |
+ |
if(ksp->ks_type != KSTAT_TYPE_IO) continue; |
496 |
+ |
/* We dont want metadevices appearins as num_diskio */ |
497 |
+ |
if(strcmp(ksp->ks_module, "md")==0) continue; |
498 |
+ |
if((kstat_read(kc, ksp, &kios))==-1){ |
499 |
+ |
} |
500 |
+ |
|
501 |
+ |
if((diskio_stats=diskio_stat_malloc(num_diskio+1, &sizeof_diskio_stats, diskio_stats))==NULL){ |
502 |
+ |
kstat_close(kc); |
503 |
+ |
return NULL; |
504 |
+ |
} |
505 |
+ |
diskio_stats_ptr=diskio_stats+num_diskio; |
506 |
+ |
|
507 |
+ |
diskio_stats_ptr->read_bytes=kios.nread; |
508 |
+ |
|
509 |
+ |
diskio_stats_ptr->write_bytes=kios.nwritten; |
510 |
+ |
|
511 |
+ |
if(diskio_stats_ptr->disk_name!=NULL) free(diskio_stats_ptr->disk_name); |
512 |
+ |
|
513 |
+ |
diskio_stats_ptr->disk_name=strdup(ksp->ks_name); |
514 |
+ |
diskio_stats_ptr->systime=time(NULL); |
515 |
+ |
num_diskio++; |
516 |
+ |
} |
517 |
+ |
} |
518 |
+ |
|
519 |
+ |
kstat_close(kc); |
520 |
+ |
#endif |
521 |
+ |
|
522 |
+ |
#ifdef LINUX |
523 |
+ |
num_diskio = 0; |
524 |
+ |
n = 0; |
525 |
+ |
|
526 |
+ |
/* Read /proc/partitions to find what devices exist. Recent 2.4 kernels |
527 |
+ |
have statistics in here too, so we can use those directly. |
528 |
+ |
2.6 kernels have /proc/diskstats instead with almost (but not quite) |
529 |
+ |
the same format. */ |
530 |
+ |
|
531 |
+ |
f = fopen("/proc/diskstats", "r"); |
532 |
+ |
format = " %d %d %19s %*d %*d %lld %*d %*d %*d %lld"; |
533 |
+ |
if (f == NULL) { |
534 |
+ |
f = fopen("/proc/partitions", "r"); |
535 |
+ |
format = " %d %d %*d %19s %*d %*d %lld %*d %*d %*d %lld"; |
536 |
+ |
} |
537 |
+ |
if (f == NULL) goto out; |
538 |
+ |
now = time(NULL); |
539 |
+ |
|
540 |
+ |
while ((line_ptr = f_read_line(f, "")) != NULL) { |
541 |
+ |
char name[20]; |
542 |
+ |
char *s; |
543 |
+ |
long long rsect, wsect; |
544 |
+ |
|
545 |
+ |
int nr = sscanf(line_ptr, format, |
546 |
+ |
&major, &minor, name, &rsect, &wsect); |
547 |
+ |
if (nr < 3) continue; |
548 |
+ |
|
549 |
+ |
/* Skip device names ending in numbers, since they're |
550 |
+ |
partitions. */ |
551 |
+ |
s = name; |
552 |
+ |
while (*s != '\0') s++; |
553 |
+ |
--s; |
554 |
+ |
if (*s >= '0' && *s <= '9') continue; |
555 |
+ |
|
556 |
+ |
if (nr < 5) { |
557 |
+ |
has_pp_stats = 0; |
558 |
+ |
rsect = 0; |
559 |
+ |
wsect = 0; |
560 |
+ |
} |
561 |
+ |
|
562 |
+ |
diskio_stats = diskio_stat_malloc(n + 1, &sizeof_diskio_stats, |
563 |
+ |
diskio_stats); |
564 |
+ |
if (diskio_stats == NULL) goto out; |
565 |
+ |
if (n >= alloc_parts) { |
566 |
+ |
alloc_parts += 16; |
567 |
+ |
parts = realloc(parts, alloc_parts * sizeof *parts); |
568 |
+ |
if (parts == NULL) { |
569 |
+ |
alloc_parts = 0; |
570 |
+ |
goto out; |
571 |
+ |
} |
572 |
+ |
} |
573 |
+ |
|
574 |
+ |
if (diskio_stats[n].disk_name != NULL) |
575 |
+ |
free(diskio_stats[n].disk_name); |
576 |
+ |
diskio_stats[n].disk_name = strdup(name); |
577 |
+ |
diskio_stats[n].read_bytes = rsect * 512; |
578 |
+ |
diskio_stats[n].write_bytes = wsect * 512; |
579 |
+ |
diskio_stats[n].systime = now; |
580 |
+ |
parts[n].major = major; |
581 |
+ |
parts[n].minor = minor; |
582 |
+ |
|
583 |
+ |
n++; |
584 |
+ |
} |
585 |
+ |
|
586 |
+ |
if (!has_pp_stats) { |
587 |
+ |
/* This is an older kernel without stats in /proc/partitions. |
588 |
+ |
Read what we can from /proc/stat instead. */ |
589 |
+ |
|
590 |
+ |
f = fopen("/proc/stat", "r"); |
591 |
+ |
if (f == NULL) goto out; |
592 |
+ |
now = time(NULL); |
593 |
+ |
|
594 |
+ |
line_ptr = f_read_line(f, "disk_io:"); |
595 |
+ |
if (line_ptr == NULL) goto out; |
596 |
+ |
|
597 |
+ |
while((line_ptr=strchr(line_ptr, ' '))!=NULL){ |
598 |
+ |
long long rsect, wsect; |
599 |
+ |
|
600 |
+ |
if (*++line_ptr == '\0') break; |
601 |
+ |
|
602 |
+ |
if((sscanf(line_ptr, |
603 |
+ |
"(%d,%d):(%*d, %*d, %lld, %*d, %lld)", |
604 |
+ |
&major, &minor, &rsect, &wsect)) != 4) { |
605 |
+ |
continue; |
606 |
+ |
} |
607 |
+ |
|
608 |
+ |
/* Find the corresponding device from earlier. |
609 |
+ |
Just to add to the fun, "minor" is actually the disk |
610 |
+ |
number, not the device minor, so we need to figure |
611 |
+ |
out the real minor number based on the major! |
612 |
+ |
This list is not exhaustive; if you're running |
613 |
+ |
an older kernel you probably don't have fancy |
614 |
+ |
I2O hardware anyway... */ |
615 |
+ |
switch (major) { |
616 |
+ |
case 3: |
617 |
+ |
case 21: |
618 |
+ |
case 22: |
619 |
+ |
case 33: |
620 |
+ |
case 34: |
621 |
+ |
case 36: |
622 |
+ |
case 56: |
623 |
+ |
case 57: |
624 |
+ |
case 88: |
625 |
+ |
case 89: |
626 |
+ |
case 90: |
627 |
+ |
case 91: |
628 |
+ |
minor *= 64; |
629 |
+ |
break; |
630 |
+ |
case 9: |
631 |
+ |
case 43: |
632 |
+ |
break; |
633 |
+ |
default: |
634 |
+ |
minor *= 16; |
635 |
+ |
break; |
636 |
+ |
} |
637 |
+ |
for (i = 0; i < n; i++) { |
638 |
+ |
if (major == parts[i].major |
639 |
+ |
&& minor == parts[i].minor) |
640 |
+ |
break; |
641 |
+ |
} |
642 |
+ |
if (i == n) continue; |
643 |
+ |
|
644 |
+ |
/* We read the number of blocks. Blocks are stored in |
645 |
+ |
512 bytes */ |
646 |
+ |
diskio_stats[i].read_bytes = rsect * 512; |
647 |
+ |
diskio_stats[i].write_bytes = wsect * 512; |
648 |
+ |
diskio_stats[i].systime = now; |
649 |
+ |
} |
650 |
+ |
} |
651 |
+ |
|
652 |
+ |
num_diskio = n; |
653 |
+ |
out: |
654 |
+ |
if (f != NULL) fclose(f); |
655 |
+ |
|
656 |
+ |
#endif |
657 |
+ |
*entries=num_diskio; |
658 |
+ |
|
659 |
+ |
return diskio_stats; |
660 |
+ |
} |
661 |
+ |
|
662 |
+ |
diskio_stat_t *get_diskio_stats_diff(int *entries){ |
663 |
+ |
static diskio_stat_t *diskio_stats_diff=NULL; |
664 |
+ |
static int sizeof_diskio_stats_diff=0; |
665 |
+ |
diskio_stat_t *diskio_stats_diff_ptr, *diskio_stats_ptr; |
666 |
+ |
int disks, x, y; |
667 |
+ |
|
668 |
+ |
if(diskio_stats==NULL){ |
669 |
+ |
diskio_stats_ptr=get_diskio_stats(&disks); |
670 |
+ |
*entries=disks; |
671 |
+ |
return diskio_stats_ptr; |
672 |
+ |
} |
673 |
+ |
|
674 |
+ |
diskio_stats_diff=diskio_stat_malloc(num_diskio, &sizeof_diskio_stats_diff, diskio_stats_diff); |
675 |
+ |
if(diskio_stats_diff==NULL){ |
676 |
+ |
return NULL; |
677 |
+ |
} |
678 |
+ |
|
679 |
+ |
diskio_stats_diff_ptr=diskio_stats_diff; |
680 |
+ |
diskio_stats_ptr=diskio_stats; |
681 |
+ |
|
682 |
+ |
for(disks=0;disks<num_diskio;disks++){ |
683 |
+ |
if(diskio_stats_diff_ptr->disk_name!=NULL){ |
684 |
+ |
free(diskio_stats_diff_ptr->disk_name); |
685 |
+ |
} |
686 |
+ |
diskio_stats_diff_ptr->disk_name=strdup(diskio_stats_ptr->disk_name); |
687 |
+ |
diskio_stats_diff_ptr->read_bytes=diskio_stats_ptr->read_bytes; |
688 |
+ |
diskio_stats_diff_ptr->write_bytes=diskio_stats_ptr->write_bytes; |
689 |
+ |
diskio_stats_diff_ptr->systime=diskio_stats_ptr->systime; |
690 |
+ |
|
691 |
+ |
diskio_stats_diff_ptr++; |
692 |
+ |
diskio_stats_ptr++; |
693 |
+ |
} |
694 |
+ |
|
695 |
+ |
diskio_stats_ptr=get_diskio_stats(&disks); |
696 |
+ |
diskio_stats_diff_ptr=diskio_stats_diff; |
697 |
+ |
|
698 |
+ |
for(x=0;x<sizeof_diskio_stats_diff;x++){ |
699 |
+ |
|
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 |
+ |
}else{ |
705 |
+ |
diskio_stats_ptr=diskio_stats; |
706 |
+ |
for(y=0;y<disks;y++){ |
707 |
+ |
if((strcmp(diskio_stats_diff_ptr->disk_name, diskio_stats_ptr->disk_name))==0){ |
708 |
+ |
diskio_stats_diff_ptr->read_bytes=diskio_stats_ptr->read_bytes-diskio_stats_diff_ptr->read_bytes; |
709 |
+ |
diskio_stats_diff_ptr->write_bytes=diskio_stats_ptr->write_bytes-diskio_stats_diff_ptr->write_bytes; |
710 |
+ |
diskio_stats_diff_ptr->systime=diskio_stats_ptr->systime-diskio_stats_diff_ptr->systime; |
711 |
+ |
|
712 |
+ |
break; |
713 |
+ |
} |
714 |
+ |
|
715 |
+ |
diskio_stats_ptr++; |
716 |
+ |
} |
717 |
+ |
} |
718 |
+ |
|
719 |
+ |
diskio_stats_ptr++; |
720 |
+ |
diskio_stats_diff_ptr++; |
721 |
+ |
|
722 |
+ |
} |
723 |
+ |
|
724 |
+ |
*entries=sizeof_diskio_stats_diff; |
725 |
+ |
return diskio_stats_diff; |
726 |
|
} |