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 "statgrab.h" |
29 |
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|
30 |
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#ifdef SOLARIS |
31 |
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#include <sys/mnttab.h> |
33 |
– |
#include <sys/types.h> |
32 |
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#include <sys/statvfs.h> |
33 |
< |
|
33 |
> |
#include <kstat.h> |
34 |
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#define VALID_FS_TYPES {"ufs", "tmpfs"} |
35 |
+ |
#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 |
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#endif |
44 |
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|
45 |
+ |
#ifdef FREEBSD |
46 |
+ |
#include <sys/param.h> |
47 |
+ |
#include <sys/ucred.h> |
48 |
+ |
#include <sys/mount.h> |
49 |
+ |
#include <sys/dkstat.h> |
50 |
+ |
#include <devstat.h> |
51 |
+ |
#define VALID_FS_TYPES {"ufs", "mfs"} |
52 |
+ |
#endif |
53 |
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#define START_VAL 1 |
54 |
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|
55 |
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char *copy_string(char *orig_ptr, const char *newtext){ |
74 |
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|
75 |
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disk_stats++; |
76 |
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} |
64 |
– |
|
77 |
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} |
78 |
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|
79 |
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disk_stat_t *get_disk_stats(int *entries){ |
83 |
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|
84 |
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char *fs_types[] = VALID_FS_TYPES; |
85 |
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int x, valid_type; |
74 |
– |
|
86 |
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int num_disks=0; |
87 |
< |
struct mnttab mp; |
77 |
< |
struct statvfs fs; |
87 |
> |
#if defined(LINUX) || defined (SOLARIS) |
88 |
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FILE *f; |
89 |
+ |
#endif |
90 |
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|
91 |
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disk_stat_t *disk_ptr; |
92 |
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|
93 |
+ |
#ifdef SOLARIS |
94 |
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struct mnttab mp; |
95 |
+ |
struct statvfs fs; |
96 |
+ |
#endif |
97 |
+ |
#ifdef LINUX |
98 |
+ |
struct mntent *mp; |
99 |
+ |
struct statfs fs; |
100 |
+ |
#endif |
101 |
+ |
#ifdef FREEBSD |
102 |
+ |
int nummnt; |
103 |
+ |
struct statfs *mp; |
104 |
+ |
#endif |
105 |
+ |
|
106 |
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if(watermark==-1){ |
107 |
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disk_stats=malloc(START_VAL * sizeof(disk_stat_t)); |
108 |
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if(disk_stats==NULL){ |
111 |
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watermark=START_VAL; |
112 |
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init_disk_stat(0, watermark-1, disk_stats); |
113 |
|
} |
114 |
+ |
#ifdef FREEBSD |
115 |
+ |
nummnt=getmntinfo(&mp , MNT_LOCAL); |
116 |
+ |
if (nummnt<=0){ |
117 |
+ |
return NULL; |
118 |
+ |
} |
119 |
+ |
for(;nummnt--; mp++){ |
120 |
+ |
valid_type=0; |
121 |
+ |
for(x=0;x<((sizeof(fs_types))/(sizeof(char*)));x++){ |
122 |
+ |
if(strcmp(mp->f_fstypename, fs_types[x]) ==0){ |
123 |
+ |
valid_type=1; |
124 |
+ |
break; |
125 |
+ |
} |
126 |
+ |
} |
127 |
+ |
#endif |
128 |
|
|
129 |
+ |
#ifdef LINUX |
130 |
+ |
if ((f=setmntent("/etc/mtab", "r" ))==NULL){ |
131 |
+ |
return NULL; |
132 |
+ |
} |
133 |
|
|
134 |
+ |
while((mp=getmntent(f))){ |
135 |
+ |
if((statfs(mp->mnt_dir, &fs)) !=0){ |
136 |
+ |
continue; |
137 |
+ |
} |
138 |
+ |
|
139 |
+ |
valid_type=0; |
140 |
+ |
for(x=0;x<((sizeof(fs_types))/(sizeof(char*)));x++){ |
141 |
+ |
if(strcmp(mp->mnt_type, fs_types[x]) ==0){ |
142 |
+ |
valid_type=1; |
143 |
+ |
break; |
144 |
+ |
} |
145 |
+ |
} |
146 |
+ |
#endif |
147 |
+ |
|
148 |
+ |
#ifdef SOLARIS |
149 |
|
if ((f=fopen("/etc/mnttab", "r" ))==NULL){ |
150 |
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return NULL; |
151 |
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} |
153 |
|
if ((statvfs(mp.mnt_mountp, &fs)) !=0){ |
154 |
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continue; |
155 |
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} |
99 |
– |
|
156 |
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valid_type=0; |
157 |
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for(x=0;x<((sizeof(fs_types))/(sizeof(char*)));x++){ |
158 |
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if(strcmp(mp.mnt_fstype, fs_types[x]) ==0){ |
160 |
|
break; |
161 |
|
} |
162 |
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} |
163 |
+ |
#endif |
164 |
|
|
165 |
|
if(valid_type){ |
166 |
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if(num_disks>watermark-1){ |
175 |
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} |
176 |
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|
177 |
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disk_ptr=disk_stats+num_disks; |
178 |
< |
|
178 |
> |
#ifdef FREEBSD |
179 |
> |
if((disk_ptr->device_name=copy_string(disk_ptr->device_name, mp->f_mntfromname))==NULL){ |
180 |
> |
return NULL; |
181 |
> |
} |
182 |
> |
|
183 |
> |
if((disk_ptr->fs_type=copy_string(disk_ptr->fs_type, mp->f_fstypename))==NULL){ |
184 |
> |
return NULL; |
185 |
> |
} |
186 |
> |
|
187 |
> |
if((disk_ptr->mnt_point=copy_string(disk_ptr->mnt_point, mp->f_mntonname))==NULL){ |
188 |
> |
return NULL; |
189 |
> |
} |
190 |
> |
|
191 |
> |
disk_ptr->size = (long long)mp->f_bsize * (long long) mp->f_blocks; |
192 |
> |
disk_ptr->avail = (long long)mp->f_bsize * (long long) mp->f_bavail; |
193 |
> |
disk_ptr->used = (disk_ptr->size) - ((long long)mp->f_bsize * (long long)mp->f_bfree); |
194 |
> |
|
195 |
> |
disk_ptr->total_inodes=(long long)mp->f_files; |
196 |
> |
disk_ptr->free_inodes=(long long)mp->f_ffree; |
197 |
> |
/* Freebsd doesn't have a "available" inodes */ |
198 |
> |
disk_ptr->used_inodes=disk_ptr->total_inodes-disk_ptr->free_inodes; |
199 |
> |
#endif |
200 |
> |
#ifdef LINUX |
201 |
> |
if((disk_ptr->device_name=copy_string(disk_ptr->device_name, mp->mnt_fsname))==NULL){ |
202 |
> |
return NULL; |
203 |
> |
} |
204 |
> |
|
205 |
> |
if((disk_ptr->fs_type=copy_string(disk_ptr->fs_type, mp->mnt_type))==NULL){ |
206 |
> |
return NULL; |
207 |
> |
} |
208 |
> |
|
209 |
> |
if((disk_ptr->mnt_point=copy_string(disk_ptr->mnt_point, mp->mnt_dir))==NULL){ |
210 |
> |
return NULL; |
211 |
> |
} |
212 |
> |
disk_ptr->size = (long long)fs.f_bsize * (long long)fs.f_blocks; |
213 |
> |
disk_ptr->avail = (long long)fs.f_bsize * (long long)fs.f_bavail; |
214 |
> |
disk_ptr->used = (disk_ptr->size) - ((long long)fs.f_bsize * (long long)fs.f_bfree); |
215 |
> |
|
216 |
> |
disk_ptr->total_inodes=(long long)fs.f_files; |
217 |
> |
disk_ptr->free_inodes=(long long)fs.f_ffree; |
218 |
> |
/* Linux doesn't have a "available" inodes */ |
219 |
> |
disk_ptr->used_inodes=disk_ptr->total_inodes-disk_ptr->free_inodes; |
220 |
> |
#endif |
221 |
> |
|
222 |
> |
#ifdef SOLARIS |
223 |
|
/* Memory leak in event of realloc failing */ |
224 |
|
/* Maybe make this char[bigenough] and do strncpy's and put a null in the end? |
225 |
< |
Downside is its a bit hungry for a lot of mounts, as MNT_MAX_SIZE woul prob be upwards |
226 |
< |
of a k each */ |
225 |
> |
* Downside is its a bit hungry for a lot of mounts, as MNT_MAX_SIZE would prob |
226 |
> |
* be upwards of a k each |
227 |
> |
*/ |
228 |
|
if((disk_ptr->device_name=copy_string(disk_ptr->device_name, mp.mnt_special))==NULL){ |
229 |
|
return NULL; |
230 |
|
} |
244 |
|
disk_ptr->total_inodes=(long long)fs.f_files; |
245 |
|
disk_ptr->used_inodes=disk_ptr->total_inodes - (long long)fs.f_ffree; |
246 |
|
disk_ptr->free_inodes=(long long)fs.f_favail; |
247 |
< |
|
247 |
> |
#endif |
248 |
|
num_disks++; |
249 |
|
} |
250 |
|
} |
252 |
|
*entries=num_disks; |
253 |
|
|
254 |
|
/* If this fails, there is very little i can do about it, so i'll ignore it :) */ |
255 |
+ |
#if defined(LINUX) || defined(SOLARIS) |
256 |
|
fclose(f); |
257 |
+ |
#endif |
258 |
|
|
259 |
|
return disk_stats; |
260 |
|
|
261 |
|
} |
262 |
+ |
void diskio_stat_init(int start, int end, diskio_stat_t *diskio_stats){ |
263 |
|
|
264 |
< |
diskio_stat_t get_diskio_stats(int *entries){ |
264 |
> |
for(diskio_stats+=start; start<end; start++){ |
265 |
> |
diskio_stats->disk_name=NULL; |
266 |
> |
|
267 |
> |
diskio_stats++; |
268 |
> |
} |
269 |
> |
} |
270 |
|
|
271 |
< |
/* Do jibble */ |
272 |
< |
return NULL; |
271 |
> |
diskio_stat_t *diskio_stat_malloc(int needed_entries, int *cur_entries, diskio_stat_t *diskio_stats){ |
272 |
> |
|
273 |
> |
if(diskio_stats==NULL){ |
274 |
> |
|
275 |
> |
if((diskio_stats=malloc(needed_entries * sizeof(diskio_stat_t)))==NULL){ |
276 |
> |
return NULL; |
277 |
> |
} |
278 |
> |
diskio_stat_init(0, needed_entries, diskio_stats); |
279 |
> |
*cur_entries=needed_entries; |
280 |
> |
|
281 |
> |
return diskio_stats; |
282 |
> |
} |
283 |
> |
|
284 |
> |
|
285 |
> |
if(*cur_entries<needed_entries){ |
286 |
> |
diskio_stats=realloc(diskio_stats, (sizeof(diskio_stat_t)*needed_entries)); |
287 |
> |
if(diskio_stats==NULL){ |
288 |
> |
return NULL; |
289 |
> |
} |
290 |
> |
diskio_stat_init(*cur_entries, needed_entries, diskio_stats); |
291 |
> |
*cur_entries=needed_entries; |
292 |
> |
} |
293 |
> |
|
294 |
> |
return diskio_stats; |
295 |
> |
} |
296 |
> |
|
297 |
> |
static diskio_stat_t *diskio_stats=NULL; |
298 |
> |
static int num_diskio=0; |
299 |
> |
|
300 |
> |
#ifdef LINUX |
301 |
> |
typedef struct { |
302 |
> |
int major; |
303 |
> |
int minor; |
304 |
> |
} partition; |
305 |
> |
#endif |
306 |
> |
|
307 |
> |
diskio_stat_t *get_diskio_stats(int *entries){ |
308 |
> |
|
309 |
> |
static int sizeof_diskio_stats=0; |
310 |
> |
diskio_stat_t *diskio_stats_ptr; |
311 |
> |
|
312 |
> |
#ifdef SOLARIS |
313 |
> |
kstat_ctl_t *kc; |
314 |
> |
kstat_t *ksp; |
315 |
> |
kstat_io_t kios; |
316 |
> |
#endif |
317 |
> |
#ifdef LINUX |
318 |
> |
FILE *f; |
319 |
> |
char *line_ptr; |
320 |
> |
int major, minor; |
321 |
> |
char dev_letter; |
322 |
> |
int has_pp_stats = 1; |
323 |
> |
static partition *parts = NULL; |
324 |
> |
static int alloc_parts = 0; |
325 |
> |
int i, n; |
326 |
> |
time_t now; |
327 |
> |
#endif |
328 |
> |
#ifdef FREEBSD |
329 |
> |
static struct statinfo stats; |
330 |
> |
static int stats_init = 0; |
331 |
> |
int counter; |
332 |
> |
struct device_selection *dev_sel = NULL; |
333 |
> |
int n_selected, n_selections; |
334 |
> |
long sel_gen; |
335 |
> |
struct devstat *dev_ptr; |
336 |
> |
#endif |
337 |
> |
num_diskio=0; |
338 |
> |
|
339 |
> |
#ifdef FREEBSD |
340 |
> |
if (!stats_init) { |
341 |
> |
stats.dinfo=malloc(sizeof(struct devinfo)); |
342 |
> |
bzero(stats.dinfo, sizeof(struct devinfo)); |
343 |
> |
if(stats.dinfo==NULL) return NULL; |
344 |
> |
stats_init = 1; |
345 |
> |
} |
346 |
> |
#ifdef FREEBSD5 |
347 |
> |
if ((devstat_getdevs(NULL, &stats)) < 0) return NULL; |
348 |
> |
/* Not aware of a get all devices, so i said 999. If we ever |
349 |
> |
* find a machine with more than 999 disks, then i'll change |
350 |
> |
* this number :) |
351 |
> |
*/ |
352 |
> |
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; |
353 |
> |
#else |
354 |
> |
if ((getdevs(&stats)) < 0) return NULL; |
355 |
> |
/* Not aware of a get all devices, so i said 999. If we ever |
356 |
> |
* find a machine with more than 999 disks, then i'll change |
357 |
> |
* this number :) |
358 |
> |
*/ |
359 |
> |
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; |
360 |
> |
#endif |
361 |
> |
|
362 |
> |
for(counter=0;counter<stats.dinfo->numdevs;counter++){ |
363 |
> |
dev_ptr=&stats.dinfo->devices[dev_sel[counter].position]; |
364 |
> |
|
365 |
> |
/* Throw away devices that have done nothing, ever.. Eg "odd" |
366 |
> |
* devices.. like mem, proc.. and also doesn't report floppy |
367 |
> |
* drives etc unless they are doing stuff :) |
368 |
> |
*/ |
369 |
> |
#ifdef FREEBSD5 |
370 |
> |
if((dev_ptr->bytes[DEVSTAT_READ]==0) && (dev_ptr->bytes[DEVSTAT_WRITE]==0)) continue; |
371 |
> |
#else |
372 |
> |
if((dev_ptr->bytes_read==0) && (dev_ptr->bytes_written==0)) continue; |
373 |
> |
#endif |
374 |
> |
if((diskio_stats=diskio_stat_malloc(num_diskio+1, &sizeof_diskio_stats, diskio_stats))==NULL){ |
375 |
> |
return NULL; |
376 |
> |
} |
377 |
> |
diskio_stats_ptr=diskio_stats+num_diskio; |
378 |
> |
|
379 |
> |
#ifdef FREEBSD5 |
380 |
> |
diskio_stats_ptr->read_bytes=dev_ptr->bytes[DEVSTAT_READ]; |
381 |
> |
diskio_stats_ptr->write_bytes=dev_ptr->bytes[DEVSTAT_WRITE]; |
382 |
> |
#else |
383 |
> |
diskio_stats_ptr->read_bytes=dev_ptr->bytes_read; |
384 |
> |
diskio_stats_ptr->write_bytes=dev_ptr->bytes_written; |
385 |
> |
#endif |
386 |
> |
if(diskio_stats_ptr->disk_name!=NULL) free(diskio_stats_ptr->disk_name); |
387 |
> |
asprintf((&diskio_stats_ptr->disk_name), "%s%d", dev_ptr->device_name, dev_ptr->unit_number); |
388 |
> |
diskio_stats_ptr->systime=time(NULL); |
389 |
> |
|
390 |
> |
num_diskio++; |
391 |
> |
} |
392 |
> |
free(dev_sel); |
393 |
> |
|
394 |
> |
#endif |
395 |
> |
#ifdef SOLARIS |
396 |
> |
if ((kc = kstat_open()) == NULL) { |
397 |
> |
return NULL; |
398 |
> |
} |
399 |
> |
|
400 |
> |
for (ksp = kc->kc_chain; ksp; ksp = ksp->ks_next) { |
401 |
> |
if (!strcmp(ksp->ks_class, "disk")) { |
402 |
> |
|
403 |
> |
if(ksp->ks_type != KSTAT_TYPE_IO) continue; |
404 |
> |
/* We dont want metadevices appearins as num_diskio */ |
405 |
> |
if(strcmp(ksp->ks_module, "md")==0) continue; |
406 |
> |
if((kstat_read(kc, ksp, &kios))==-1){ |
407 |
> |
} |
408 |
> |
|
409 |
> |
if((diskio_stats=diskio_stat_malloc(num_diskio+1, &sizeof_diskio_stats, diskio_stats))==NULL){ |
410 |
> |
kstat_close(kc); |
411 |
> |
return NULL; |
412 |
> |
} |
413 |
> |
diskio_stats_ptr=diskio_stats+num_diskio; |
414 |
> |
|
415 |
> |
diskio_stats_ptr->read_bytes=kios.nread; |
416 |
> |
|
417 |
> |
diskio_stats_ptr->write_bytes=kios.nwritten; |
418 |
> |
|
419 |
> |
if(diskio_stats_ptr->disk_name!=NULL) free(diskio_stats_ptr->disk_name); |
420 |
> |
|
421 |
> |
diskio_stats_ptr->disk_name=strdup(ksp->ks_name); |
422 |
> |
diskio_stats_ptr->systime=time(NULL); |
423 |
> |
num_diskio++; |
424 |
> |
} |
425 |
> |
} |
426 |
> |
|
427 |
> |
kstat_close(kc); |
428 |
> |
#endif |
429 |
> |
|
430 |
> |
#ifdef LINUX |
431 |
> |
num_diskio = 0; |
432 |
> |
n = 0; |
433 |
> |
|
434 |
> |
/* Read /proc/partitions to find what devices exist. Recent 2.4 kernels |
435 |
> |
have statistics in here too, so we can use those directly. */ |
436 |
> |
|
437 |
> |
f = fopen("/proc/partitions", "r"); |
438 |
> |
if (f == NULL) goto out; |
439 |
> |
now = time(NULL); |
440 |
> |
|
441 |
> |
while ((line_ptr = f_read_line(f, "")) != NULL) { |
442 |
> |
char name[20]; |
443 |
> |
char *s; |
444 |
> |
long long rsect, wsect; |
445 |
> |
|
446 |
> |
int nr = sscanf(line_ptr, |
447 |
> |
" %d %d %*d %19s %*d %*d %lld %*d %*d %*d %lld", |
448 |
> |
&major, &minor, name, &rsect, &wsect); |
449 |
> |
if (nr < 3) continue; |
450 |
> |
if (nr < 5) { |
451 |
> |
has_pp_stats = 0; |
452 |
> |
rsect = 0; |
453 |
> |
wsect = 0; |
454 |
> |
} |
455 |
> |
|
456 |
> |
/* Skip device names ending in numbers, since they're |
457 |
> |
partitions. */ |
458 |
> |
s = name; |
459 |
> |
while (*s != '\0') s++; |
460 |
> |
--s; |
461 |
> |
if (*s >= '0' && *s <= '9') continue; |
462 |
> |
|
463 |
> |
diskio_stats = diskio_stat_malloc(n + 1, &sizeof_diskio_stats, |
464 |
> |
diskio_stats); |
465 |
> |
if (diskio_stats == NULL) goto out; |
466 |
> |
if (n >= alloc_parts) { |
467 |
> |
alloc_parts += 16; |
468 |
> |
parts = realloc(parts, alloc_parts * sizeof *parts); |
469 |
> |
if (parts == NULL) { |
470 |
> |
alloc_parts = 0; |
471 |
> |
goto out; |
472 |
> |
} |
473 |
> |
} |
474 |
> |
|
475 |
> |
if (diskio_stats[n].disk_name != NULL) |
476 |
> |
free(diskio_stats[n].disk_name); |
477 |
> |
diskio_stats[n].disk_name = strdup(name); |
478 |
> |
diskio_stats[n].read_bytes = rsect * 512; |
479 |
> |
diskio_stats[n].write_bytes = wsect * 512; |
480 |
> |
diskio_stats[n].systime = now; |
481 |
> |
parts[n].major = major; |
482 |
> |
parts[n].minor = minor; |
483 |
> |
|
484 |
> |
n++; |
485 |
> |
} |
486 |
> |
|
487 |
> |
if (!has_pp_stats) { |
488 |
> |
/* This is an older kernel without stats in /proc/partitions. |
489 |
> |
Read what we can from /proc/stat instead. */ |
490 |
> |
|
491 |
> |
f = fopen("/proc/stat", "r"); |
492 |
> |
if (f == NULL) goto out; |
493 |
> |
now = time(NULL); |
494 |
> |
|
495 |
> |
line_ptr = f_read_line(f, "disk_io:"); |
496 |
> |
if (line_ptr == NULL) goto out; |
497 |
> |
|
498 |
> |
while((line_ptr=strchr(line_ptr, ' '))!=NULL){ |
499 |
> |
long long rsect, wsect; |
500 |
> |
|
501 |
> |
if (*++line_ptr == '\0') break; |
502 |
> |
|
503 |
> |
if((sscanf(line_ptr, |
504 |
> |
"(%d,%d):(%*d, %*d, %lld, %*d, %lld)", |
505 |
> |
&major, &minor, &rsect, &wsect)) != 4) { |
506 |
> |
continue; |
507 |
> |
} |
508 |
> |
|
509 |
> |
/* Find the corresponding device from earlier. |
510 |
> |
Just to add to the fun, "minor" is actually the disk |
511 |
> |
number, not the device minor, so we need to figure |
512 |
> |
out the real minor number based on the major! |
513 |
> |
This list is not exhaustive; if you're running |
514 |
> |
an older kernel you probably don't have fancy |
515 |
> |
I2O hardware anyway... */ |
516 |
> |
switch (major) { |
517 |
> |
case 3: |
518 |
> |
case 21: |
519 |
> |
case 22: |
520 |
> |
case 33: |
521 |
> |
case 34: |
522 |
> |
case 36: |
523 |
> |
case 56: |
524 |
> |
case 57: |
525 |
> |
case 88: |
526 |
> |
case 89: |
527 |
> |
case 90: |
528 |
> |
case 91: |
529 |
> |
minor *= 64; |
530 |
> |
break; |
531 |
> |
case 9: |
532 |
> |
case 43: |
533 |
> |
break; |
534 |
> |
default: |
535 |
> |
minor *= 16; |
536 |
> |
break; |
537 |
> |
} |
538 |
> |
for (i = 0; i < n; i++) { |
539 |
> |
if (major == parts[i].major |
540 |
> |
&& minor == parts[i].minor) |
541 |
> |
break; |
542 |
> |
} |
543 |
> |
if (i == n) continue; |
544 |
> |
|
545 |
> |
/* We read the number of blocks. Blocks are stored in |
546 |
> |
512 bytes */ |
547 |
> |
diskio_stats[i].read_bytes = rsect * 512; |
548 |
> |
diskio_stats[i].write_bytes = wsect * 512; |
549 |
> |
diskio_stats[i].systime = now; |
550 |
> |
} |
551 |
> |
} |
552 |
> |
|
553 |
> |
num_diskio = n; |
554 |
> |
out: |
555 |
> |
if (f != NULL) fclose(f); |
556 |
> |
|
557 |
> |
#endif |
558 |
> |
*entries=num_diskio; |
559 |
> |
|
560 |
> |
return diskio_stats; |
561 |
> |
} |
562 |
> |
|
563 |
> |
diskio_stat_t *get_diskio_stats_diff(int *entries){ |
564 |
> |
static diskio_stat_t *diskio_stats_diff=NULL; |
565 |
> |
static int sizeof_diskio_stats_diff=0; |
566 |
> |
diskio_stat_t *diskio_stats_diff_ptr, *diskio_stats_ptr; |
567 |
> |
int disks, x, y; |
568 |
> |
|
569 |
> |
if(diskio_stats==NULL){ |
570 |
> |
diskio_stats_ptr=get_diskio_stats(&disks); |
571 |
> |
*entries=disks; |
572 |
> |
return diskio_stats_ptr; |
573 |
> |
} |
574 |
> |
|
575 |
> |
diskio_stats_diff=diskio_stat_malloc(num_diskio, &sizeof_diskio_stats_diff, diskio_stats_diff); |
576 |
> |
if(diskio_stats_diff==NULL){ |
577 |
> |
return NULL; |
578 |
> |
} |
579 |
> |
|
580 |
> |
diskio_stats_diff_ptr=diskio_stats_diff; |
581 |
> |
diskio_stats_ptr=diskio_stats; |
582 |
> |
|
583 |
> |
for(disks=0;disks<num_diskio;disks++){ |
584 |
> |
if(diskio_stats_diff_ptr->disk_name!=NULL){ |
585 |
> |
free(diskio_stats_diff_ptr->disk_name); |
586 |
> |
} |
587 |
> |
diskio_stats_diff_ptr->disk_name=strdup(diskio_stats_ptr->disk_name); |
588 |
> |
diskio_stats_diff_ptr->read_bytes=diskio_stats_ptr->read_bytes; |
589 |
> |
diskio_stats_diff_ptr->write_bytes=diskio_stats_ptr->write_bytes; |
590 |
> |
diskio_stats_diff_ptr->systime=diskio_stats_ptr->systime; |
591 |
> |
|
592 |
> |
diskio_stats_diff_ptr++; |
593 |
> |
diskio_stats_ptr++; |
594 |
> |
} |
595 |
> |
|
596 |
> |
diskio_stats_ptr=get_diskio_stats(&disks); |
597 |
> |
diskio_stats_diff_ptr=diskio_stats_diff; |
598 |
> |
|
599 |
> |
for(x=0;x<sizeof_diskio_stats_diff;x++){ |
600 |
> |
|
601 |
> |
if((strcmp(diskio_stats_diff_ptr->disk_name, diskio_stats_ptr->disk_name))==0){ |
602 |
> |
diskio_stats_diff_ptr->read_bytes=diskio_stats_ptr->read_bytes-diskio_stats_diff_ptr->read_bytes; |
603 |
> |
diskio_stats_diff_ptr->write_bytes=diskio_stats_ptr->write_bytes-diskio_stats_diff_ptr->write_bytes; |
604 |
> |
diskio_stats_diff_ptr->systime=diskio_stats_ptr->systime-diskio_stats_diff_ptr->systime; |
605 |
> |
}else{ |
606 |
> |
diskio_stats_ptr=diskio_stats; |
607 |
> |
for(y=0;y<disks;y++){ |
608 |
> |
if((strcmp(diskio_stats_diff_ptr->disk_name, diskio_stats_ptr->disk_name))==0){ |
609 |
> |
diskio_stats_diff_ptr->read_bytes=diskio_stats_ptr->read_bytes-diskio_stats_diff_ptr->read_bytes; |
610 |
> |
diskio_stats_diff_ptr->write_bytes=diskio_stats_ptr->write_bytes-diskio_stats_diff_ptr->write_bytes; |
611 |
> |
diskio_stats_diff_ptr->systime=diskio_stats_ptr->systime-diskio_stats_diff_ptr->systime; |
612 |
> |
|
613 |
> |
break; |
614 |
> |
} |
615 |
> |
|
616 |
> |
diskio_stats_ptr++; |
617 |
> |
} |
618 |
> |
} |
619 |
> |
|
620 |
> |
diskio_stats_ptr++; |
621 |
> |
diskio_stats_diff_ptr++; |
622 |
> |
|
623 |
> |
} |
624 |
> |
|
625 |
> |
*entries=sizeof_diskio_stats_diff; |
626 |
> |
return diskio_stats_diff; |
627 |
|
} |