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 <stdlib.h> |
25 |
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#include <stdio.h> |
26 |
+ |
#include <stdlib.h> |
27 |
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#include <string.h> |
28 |
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#include "statgrab.h" |
29 |
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|
34 |
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#define VALID_FS_TYPES {"ufs", "tmpfs"} |
35 |
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#endif |
36 |
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|
37 |
+ |
#ifdef LINUX |
38 |
+ |
#include <time.h> |
39 |
+ |
#include <sys/vfs.h> |
40 |
+ |
#include <mntent.h> |
41 |
+ |
#include "tools.h" |
42 |
+ |
#define VALID_FS_TYPES {"ext2", "ext3", "xfs", "reiserfs", "vfat", "tmpfs"} |
43 |
+ |
#endif |
44 |
+ |
|
45 |
+ |
#ifdef ALLBSD |
46 |
+ |
#include <sys/param.h> |
47 |
+ |
#include <sys/ucred.h> |
48 |
+ |
#include <sys/mount.h> |
49 |
+ |
#define VALID_FS_TYPES {"ufs", "mfs", "ffs"} |
50 |
+ |
#endif |
51 |
+ |
#ifdef FREEBSD |
52 |
+ |
#include <sys/dkstat.h> |
53 |
+ |
#include <devstat.h> |
54 |
+ |
#endif |
55 |
+ |
|
56 |
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#define START_VAL 1 |
57 |
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|
58 |
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char *copy_string(char *orig_ptr, const char *newtext){ |
86 |
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|
87 |
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char *fs_types[] = VALID_FS_TYPES; |
88 |
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int x, valid_type; |
70 |
– |
|
89 |
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int num_disks=0; |
90 |
< |
struct mnttab mp; |
73 |
< |
struct statvfs fs; |
90 |
> |
#if defined(LINUX) || defined (SOLARIS) |
91 |
|
FILE *f; |
92 |
+ |
#endif |
93 |
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|
94 |
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disk_stat_t *disk_ptr; |
95 |
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|
96 |
+ |
#ifdef SOLARIS |
97 |
+ |
struct mnttab mp; |
98 |
+ |
struct statvfs fs; |
99 |
+ |
#endif |
100 |
+ |
#ifdef LINUX |
101 |
+ |
struct mntent *mp; |
102 |
+ |
struct statfs fs; |
103 |
+ |
#endif |
104 |
+ |
#ifdef ALLBSD |
105 |
+ |
int nummnt; |
106 |
+ |
struct statfs *mp; |
107 |
+ |
#endif |
108 |
+ |
|
109 |
|
if(watermark==-1){ |
110 |
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disk_stats=malloc(START_VAL * sizeof(disk_stat_t)); |
111 |
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if(disk_stats==NULL){ |
114 |
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watermark=START_VAL; |
115 |
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init_disk_stat(0, watermark-1, disk_stats); |
116 |
|
} |
117 |
+ |
#ifdef ALLBSD |
118 |
+ |
nummnt=getmntinfo(&mp , MNT_LOCAL); |
119 |
+ |
if (nummnt<=0){ |
120 |
+ |
return NULL; |
121 |
+ |
} |
122 |
+ |
for(;nummnt--; mp++){ |
123 |
+ |
valid_type=0; |
124 |
+ |
for(x=0;x<((sizeof(fs_types))/(sizeof(char*)));x++){ |
125 |
+ |
if(strcmp(mp->f_fstypename, fs_types[x]) ==0){ |
126 |
+ |
valid_type=1; |
127 |
+ |
break; |
128 |
+ |
} |
129 |
+ |
} |
130 |
+ |
#endif |
131 |
|
|
132 |
+ |
#ifdef LINUX |
133 |
+ |
if ((f=setmntent("/etc/mtab", "r" ))==NULL){ |
134 |
+ |
return NULL; |
135 |
+ |
} |
136 |
|
|
137 |
+ |
while((mp=getmntent(f))){ |
138 |
+ |
if((statfs(mp->mnt_dir, &fs)) !=0){ |
139 |
+ |
continue; |
140 |
+ |
} |
141 |
+ |
|
142 |
+ |
valid_type=0; |
143 |
+ |
for(x=0;x<((sizeof(fs_types))/(sizeof(char*)));x++){ |
144 |
+ |
if(strcmp(mp->mnt_type, fs_types[x]) ==0){ |
145 |
+ |
valid_type=1; |
146 |
+ |
break; |
147 |
+ |
} |
148 |
+ |
} |
149 |
+ |
#endif |
150 |
+ |
|
151 |
+ |
#ifdef SOLARIS |
152 |
|
if ((f=fopen("/etc/mnttab", "r" ))==NULL){ |
153 |
|
return NULL; |
154 |
|
} |
156 |
|
if ((statvfs(mp.mnt_mountp, &fs)) !=0){ |
157 |
|
continue; |
158 |
|
} |
95 |
– |
|
159 |
|
valid_type=0; |
160 |
|
for(x=0;x<((sizeof(fs_types))/(sizeof(char*)));x++){ |
161 |
|
if(strcmp(mp.mnt_fstype, fs_types[x]) ==0){ |
163 |
|
break; |
164 |
|
} |
165 |
|
} |
166 |
+ |
#endif |
167 |
|
|
168 |
|
if(valid_type){ |
169 |
|
if(num_disks>watermark-1){ |
178 |
|
} |
179 |
|
|
180 |
|
disk_ptr=disk_stats+num_disks; |
181 |
< |
|
181 |
> |
#ifdef ALLBSD |
182 |
> |
if((disk_ptr->device_name=copy_string(disk_ptr->device_name, mp->f_mntfromname))==NULL){ |
183 |
> |
return NULL; |
184 |
> |
} |
185 |
> |
|
186 |
> |
if((disk_ptr->fs_type=copy_string(disk_ptr->fs_type, mp->f_fstypename))==NULL){ |
187 |
> |
return NULL; |
188 |
> |
} |
189 |
> |
|
190 |
> |
if((disk_ptr->mnt_point=copy_string(disk_ptr->mnt_point, mp->f_mntonname))==NULL){ |
191 |
> |
return NULL; |
192 |
> |
} |
193 |
> |
|
194 |
> |
disk_ptr->size = (long long)mp->f_bsize * (long long) mp->f_blocks; |
195 |
> |
disk_ptr->avail = (long long)mp->f_bsize * (long long) mp->f_bavail; |
196 |
> |
disk_ptr->used = (disk_ptr->size) - ((long long)mp->f_bsize * (long long)mp->f_bfree); |
197 |
> |
|
198 |
> |
disk_ptr->total_inodes=(long long)mp->f_files; |
199 |
> |
disk_ptr->free_inodes=(long long)mp->f_ffree; |
200 |
> |
/* Freebsd doesn't have a "available" inodes */ |
201 |
> |
disk_ptr->used_inodes=disk_ptr->total_inodes-disk_ptr->free_inodes; |
202 |
> |
#endif |
203 |
> |
#ifdef LINUX |
204 |
> |
if((disk_ptr->device_name=copy_string(disk_ptr->device_name, mp->mnt_fsname))==NULL){ |
205 |
> |
return NULL; |
206 |
> |
} |
207 |
> |
|
208 |
> |
if((disk_ptr->fs_type=copy_string(disk_ptr->fs_type, mp->mnt_type))==NULL){ |
209 |
> |
return NULL; |
210 |
> |
} |
211 |
> |
|
212 |
> |
if((disk_ptr->mnt_point=copy_string(disk_ptr->mnt_point, mp->mnt_dir))==NULL){ |
213 |
> |
return NULL; |
214 |
> |
} |
215 |
> |
disk_ptr->size = (long long)fs.f_bsize * (long long)fs.f_blocks; |
216 |
> |
disk_ptr->avail = (long long)fs.f_bsize * (long long)fs.f_bavail; |
217 |
> |
disk_ptr->used = (disk_ptr->size) - ((long long)fs.f_bsize * (long long)fs.f_bfree); |
218 |
> |
|
219 |
> |
disk_ptr->total_inodes=(long long)fs.f_files; |
220 |
> |
disk_ptr->free_inodes=(long long)fs.f_ffree; |
221 |
> |
/* Linux doesn't have a "available" inodes */ |
222 |
> |
disk_ptr->used_inodes=disk_ptr->total_inodes-disk_ptr->free_inodes; |
223 |
> |
#endif |
224 |
> |
|
225 |
> |
#ifdef SOLARIS |
226 |
|
/* Memory leak in event of realloc failing */ |
227 |
|
/* Maybe make this char[bigenough] and do strncpy's and put a null in the end? |
228 |
< |
Downside is its a bit hungry for a lot of mounts, as MNT_MAX_SIZE woul prob be upwards |
229 |
< |
of a k each */ |
228 |
> |
* Downside is its a bit hungry for a lot of mounts, as MNT_MAX_SIZE would prob |
229 |
> |
* be upwards of a k each |
230 |
> |
*/ |
231 |
|
if((disk_ptr->device_name=copy_string(disk_ptr->device_name, mp.mnt_special))==NULL){ |
232 |
|
return NULL; |
233 |
|
} |
247 |
|
disk_ptr->total_inodes=(long long)fs.f_files; |
248 |
|
disk_ptr->used_inodes=disk_ptr->total_inodes - (long long)fs.f_ffree; |
249 |
|
disk_ptr->free_inodes=(long long)fs.f_favail; |
250 |
< |
|
250 |
> |
#endif |
251 |
|
num_disks++; |
252 |
|
} |
253 |
|
} |
255 |
|
*entries=num_disks; |
256 |
|
|
257 |
|
/* If this fails, there is very little i can do about it, so i'll ignore it :) */ |
258 |
+ |
#if defined(LINUX) || defined(SOLARIS) |
259 |
|
fclose(f); |
260 |
+ |
#endif |
261 |
|
|
262 |
|
return disk_stats; |
263 |
|
|
264 |
|
} |
154 |
– |
|
265 |
|
void diskio_stat_init(int start, int end, diskio_stat_t *diskio_stats){ |
266 |
|
|
267 |
|
for(diskio_stats+=start; start<end; start++){ |
300 |
|
static diskio_stat_t *diskio_stats=NULL; |
301 |
|
static int num_diskio=0; |
302 |
|
|
303 |
+ |
#ifdef LINUX |
304 |
+ |
typedef struct { |
305 |
+ |
int major; |
306 |
+ |
int minor; |
307 |
+ |
} partition; |
308 |
+ |
#endif |
309 |
+ |
|
310 |
|
diskio_stat_t *get_diskio_stats(int *entries){ |
311 |
|
|
312 |
|
static int sizeof_diskio_stats=0; |
313 |
|
diskio_stat_t *diskio_stats_ptr; |
314 |
|
|
315 |
+ |
#ifdef SOLARIS |
316 |
|
kstat_ctl_t *kc; |
317 |
|
kstat_t *ksp; |
318 |
|
kstat_io_t kios; |
319 |
+ |
#endif |
320 |
+ |
#ifdef LINUX |
321 |
+ |
FILE *f; |
322 |
+ |
char *line_ptr; |
323 |
+ |
int major, minor; |
324 |
+ |
char dev_letter; |
325 |
+ |
int has_pp_stats = 1; |
326 |
+ |
static partition *parts = NULL; |
327 |
+ |
static int alloc_parts = 0; |
328 |
+ |
int i, n; |
329 |
+ |
time_t now; |
330 |
+ |
#endif |
331 |
+ |
#ifdef FREEBSD |
332 |
+ |
static struct statinfo stats; |
333 |
+ |
static int stats_init = 0; |
334 |
+ |
int counter; |
335 |
+ |
struct device_selection *dev_sel = NULL; |
336 |
+ |
int n_selected, n_selections; |
337 |
+ |
long sel_gen; |
338 |
+ |
struct devstat *dev_ptr; |
339 |
+ |
#endif |
340 |
+ |
#ifdef NETBSD |
341 |
+ |
/* FIXME get_diskio_stats NYI on NetBSD. |
342 |
+ |
* See vmstat/dkstats.c in NetBSD source for examples. |
343 |
+ |
*/ |
344 |
+ |
#endif |
345 |
+ |
num_diskio=0; |
346 |
|
|
347 |
+ |
#ifdef FREEBSD |
348 |
+ |
if (!stats_init) { |
349 |
+ |
stats.dinfo=malloc(sizeof(struct devinfo)); |
350 |
+ |
bzero(stats.dinfo, sizeof(struct devinfo)); |
351 |
+ |
if(stats.dinfo==NULL) return NULL; |
352 |
+ |
stats_init = 1; |
353 |
+ |
} |
354 |
+ |
#ifdef FREEBSD5 |
355 |
+ |
if ((devstat_getdevs(NULL, &stats)) < 0) return NULL; |
356 |
+ |
/* Not aware of a get all devices, so i said 999. If we ever |
357 |
+ |
* find a machine with more than 999 disks, then i'll change |
358 |
+ |
* this number :) |
359 |
+ |
*/ |
360 |
+ |
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; |
361 |
+ |
#else |
362 |
+ |
if ((getdevs(&stats)) < 0) return NULL; |
363 |
+ |
/* Not aware of a get all devices, so i said 999. If we ever |
364 |
+ |
* find a machine with more than 999 disks, then i'll change |
365 |
+ |
* this number :) |
366 |
+ |
*/ |
367 |
+ |
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; |
368 |
+ |
#endif |
369 |
+ |
|
370 |
+ |
for(counter=0;counter<stats.dinfo->numdevs;counter++){ |
371 |
+ |
dev_ptr=&stats.dinfo->devices[dev_sel[counter].position]; |
372 |
+ |
|
373 |
+ |
/* Throw away devices that have done nothing, ever.. Eg "odd" |
374 |
+ |
* devices.. like mem, proc.. and also doesn't report floppy |
375 |
+ |
* drives etc unless they are doing stuff :) |
376 |
+ |
*/ |
377 |
+ |
#ifdef FREEBSD5 |
378 |
+ |
if((dev_ptr->bytes[DEVSTAT_READ]==0) && (dev_ptr->bytes[DEVSTAT_WRITE]==0)) continue; |
379 |
+ |
#else |
380 |
+ |
if((dev_ptr->bytes_read==0) && (dev_ptr->bytes_written==0)) continue; |
381 |
+ |
#endif |
382 |
+ |
if((diskio_stats=diskio_stat_malloc(num_diskio+1, &sizeof_diskio_stats, diskio_stats))==NULL){ |
383 |
+ |
return NULL; |
384 |
+ |
} |
385 |
+ |
diskio_stats_ptr=diskio_stats+num_diskio; |
386 |
+ |
|
387 |
+ |
#ifdef FREEBSD5 |
388 |
+ |
diskio_stats_ptr->read_bytes=dev_ptr->bytes[DEVSTAT_READ]; |
389 |
+ |
diskio_stats_ptr->write_bytes=dev_ptr->bytes[DEVSTAT_WRITE]; |
390 |
+ |
#else |
391 |
+ |
diskio_stats_ptr->read_bytes=dev_ptr->bytes_read; |
392 |
+ |
diskio_stats_ptr->write_bytes=dev_ptr->bytes_written; |
393 |
+ |
#endif |
394 |
+ |
if(diskio_stats_ptr->disk_name!=NULL) free(diskio_stats_ptr->disk_name); |
395 |
+ |
asprintf((&diskio_stats_ptr->disk_name), "%s%d", dev_ptr->device_name, dev_ptr->unit_number); |
396 |
+ |
diskio_stats_ptr->systime=time(NULL); |
397 |
+ |
|
398 |
+ |
num_diskio++; |
399 |
+ |
} |
400 |
+ |
free(dev_sel); |
401 |
+ |
|
402 |
+ |
#endif |
403 |
+ |
#ifdef SOLARIS |
404 |
|
if ((kc = kstat_open()) == NULL) { |
405 |
|
return NULL; |
406 |
|
} |
407 |
|
|
206 |
– |
num_diskio=0; |
207 |
– |
|
408 |
|
for (ksp = kc->kc_chain; ksp; ksp = ksp->ks_next) { |
409 |
|
if (!strcmp(ksp->ks_class, "disk")) { |
410 |
|
|
427 |
|
if(diskio_stats_ptr->disk_name!=NULL) free(diskio_stats_ptr->disk_name); |
428 |
|
|
429 |
|
diskio_stats_ptr->disk_name=strdup(ksp->ks_name); |
430 |
+ |
diskio_stats_ptr->systime=time(NULL); |
431 |
|
num_diskio++; |
432 |
|
} |
433 |
|
} |
434 |
|
|
435 |
|
kstat_close(kc); |
436 |
+ |
#endif |
437 |
|
|
438 |
+ |
#ifdef LINUX |
439 |
+ |
num_diskio = 0; |
440 |
+ |
n = 0; |
441 |
+ |
|
442 |
+ |
/* Read /proc/partitions to find what devices exist. Recent 2.4 kernels |
443 |
+ |
have statistics in here too, so we can use those directly. */ |
444 |
+ |
|
445 |
+ |
f = fopen("/proc/partitions", "r"); |
446 |
+ |
if (f == NULL) goto out; |
447 |
+ |
now = time(NULL); |
448 |
+ |
|
449 |
+ |
while ((line_ptr = f_read_line(f, "")) != NULL) { |
450 |
+ |
char name[20]; |
451 |
+ |
char *s; |
452 |
+ |
long long rsect, wsect; |
453 |
+ |
|
454 |
+ |
int nr = sscanf(line_ptr, |
455 |
+ |
" %d %d %*d %19s %*d %*d %lld %*d %*d %*d %lld", |
456 |
+ |
&major, &minor, name, &rsect, &wsect); |
457 |
+ |
if (nr < 3) continue; |
458 |
+ |
if (nr < 5) { |
459 |
+ |
has_pp_stats = 0; |
460 |
+ |
rsect = 0; |
461 |
+ |
wsect = 0; |
462 |
+ |
} |
463 |
+ |
|
464 |
+ |
/* Skip device names ending in numbers, since they're |
465 |
+ |
partitions. */ |
466 |
+ |
s = name; |
467 |
+ |
while (*s != '\0') s++; |
468 |
+ |
--s; |
469 |
+ |
if (*s >= '0' && *s <= '9') continue; |
470 |
+ |
|
471 |
+ |
diskio_stats = diskio_stat_malloc(n + 1, &sizeof_diskio_stats, |
472 |
+ |
diskio_stats); |
473 |
+ |
if (diskio_stats == NULL) goto out; |
474 |
+ |
if (n >= alloc_parts) { |
475 |
+ |
alloc_parts += 16; |
476 |
+ |
parts = realloc(parts, alloc_parts * sizeof *parts); |
477 |
+ |
if (parts == NULL) { |
478 |
+ |
alloc_parts = 0; |
479 |
+ |
goto out; |
480 |
+ |
} |
481 |
+ |
} |
482 |
+ |
|
483 |
+ |
if (diskio_stats[n].disk_name != NULL) |
484 |
+ |
free(diskio_stats[n].disk_name); |
485 |
+ |
diskio_stats[n].disk_name = strdup(name); |
486 |
+ |
diskio_stats[n].read_bytes = rsect * 512; |
487 |
+ |
diskio_stats[n].write_bytes = wsect * 512; |
488 |
+ |
diskio_stats[n].systime = now; |
489 |
+ |
parts[n].major = major; |
490 |
+ |
parts[n].minor = minor; |
491 |
+ |
|
492 |
+ |
n++; |
493 |
+ |
} |
494 |
+ |
|
495 |
+ |
if (!has_pp_stats) { |
496 |
+ |
/* This is an older kernel without stats in /proc/partitions. |
497 |
+ |
Read what we can from /proc/stat instead. */ |
498 |
+ |
|
499 |
+ |
f = fopen("/proc/stat", "r"); |
500 |
+ |
if (f == NULL) goto out; |
501 |
+ |
now = time(NULL); |
502 |
+ |
|
503 |
+ |
line_ptr = f_read_line(f, "disk_io:"); |
504 |
+ |
if (line_ptr == NULL) goto out; |
505 |
+ |
|
506 |
+ |
while((line_ptr=strchr(line_ptr, ' '))!=NULL){ |
507 |
+ |
long long rsect, wsect; |
508 |
+ |
|
509 |
+ |
if (*++line_ptr == '\0') break; |
510 |
+ |
|
511 |
+ |
if((sscanf(line_ptr, |
512 |
+ |
"(%d,%d):(%*d, %*d, %lld, %*d, %lld)", |
513 |
+ |
&major, &minor, &rsect, &wsect)) != 4) { |
514 |
+ |
continue; |
515 |
+ |
} |
516 |
+ |
|
517 |
+ |
/* Find the corresponding device from earlier. |
518 |
+ |
Just to add to the fun, "minor" is actually the disk |
519 |
+ |
number, not the device minor, so we need to figure |
520 |
+ |
out the real minor number based on the major! |
521 |
+ |
This list is not exhaustive; if you're running |
522 |
+ |
an older kernel you probably don't have fancy |
523 |
+ |
I2O hardware anyway... */ |
524 |
+ |
switch (major) { |
525 |
+ |
case 3: |
526 |
+ |
case 21: |
527 |
+ |
case 22: |
528 |
+ |
case 33: |
529 |
+ |
case 34: |
530 |
+ |
case 36: |
531 |
+ |
case 56: |
532 |
+ |
case 57: |
533 |
+ |
case 88: |
534 |
+ |
case 89: |
535 |
+ |
case 90: |
536 |
+ |
case 91: |
537 |
+ |
minor *= 64; |
538 |
+ |
break; |
539 |
+ |
case 9: |
540 |
+ |
case 43: |
541 |
+ |
break; |
542 |
+ |
default: |
543 |
+ |
minor *= 16; |
544 |
+ |
break; |
545 |
+ |
} |
546 |
+ |
for (i = 0; i < n; i++) { |
547 |
+ |
if (major == parts[i].major |
548 |
+ |
&& minor == parts[i].minor) |
549 |
+ |
break; |
550 |
+ |
} |
551 |
+ |
if (i == n) continue; |
552 |
+ |
|
553 |
+ |
/* We read the number of blocks. Blocks are stored in |
554 |
+ |
512 bytes */ |
555 |
+ |
diskio_stats[i].read_bytes = rsect * 512; |
556 |
+ |
diskio_stats[i].write_bytes = wsect * 512; |
557 |
+ |
diskio_stats[i].systime = now; |
558 |
+ |
} |
559 |
+ |
} |
560 |
+ |
|
561 |
+ |
num_diskio = n; |
562 |
+ |
out: |
563 |
+ |
if (f != NULL) fclose(f); |
564 |
+ |
|
565 |
+ |
#endif |
566 |
|
*entries=num_diskio; |
567 |
|
|
568 |
|
return diskio_stats; |