1 |
pajs |
1.1 |
/* |
2 |
|
|
* i-scream central monitoring system |
3 |
|
|
* http://www.i-scream.org.uk |
4 |
|
|
* Copyright (C) 2000-2002 i-scream |
5 |
|
|
* |
6 |
|
|
* This program is free software; you can redistribute it and/or |
7 |
|
|
* modify it under the terms of the GNU General Public License |
8 |
|
|
* as published by the Free Software Foundation; either version 2 |
9 |
|
|
* of the License, or (at your option) any later version. |
10 |
|
|
* |
11 |
|
|
* This program is distributed in the hope that it will be useful, |
12 |
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 |
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
14 |
|
|
* GNU General Public License for more details. |
15 |
|
|
* |
16 |
|
|
* You should have received a copy of the GNU General Public License |
17 |
|
|
* along with this program; if not, write to the Free Software |
18 |
|
|
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
19 |
|
|
*/ |
20 |
|
|
|
21 |
|
|
#ifdef HAVE_CONFIG_H |
22 |
|
|
#include "config.h" |
23 |
|
|
#endif |
24 |
|
|
|
25 |
|
|
#include <stdlib.h> |
26 |
|
|
#include <stdio.h> |
27 |
|
|
#include <string.h> |
28 |
tdb |
1.7 |
#include "statgrab.h" |
29 |
pajs |
1.1 |
|
30 |
|
|
#ifdef SOLARIS |
31 |
|
|
#include <sys/mnttab.h> |
32 |
|
|
#include <sys/statvfs.h> |
33 |
pajs |
1.4 |
#include <kstat.h> |
34 |
pajs |
1.1 |
#define VALID_FS_TYPES {"ufs", "tmpfs"} |
35 |
|
|
#endif |
36 |
|
|
|
37 |
|
|
#define START_VAL 1 |
38 |
|
|
|
39 |
|
|
char *copy_string(char *orig_ptr, const char *newtext){ |
40 |
|
|
|
41 |
|
|
/* Maybe free if not NULL, and strdup rather than realloc and strcpy? */ |
42 |
|
|
orig_ptr=realloc(orig_ptr, (1+strlen(newtext))); |
43 |
|
|
if(orig_ptr==NULL){ |
44 |
|
|
return NULL; |
45 |
|
|
} |
46 |
|
|
strcpy(orig_ptr, newtext); |
47 |
|
|
|
48 |
|
|
return orig_ptr; |
49 |
|
|
} |
50 |
|
|
|
51 |
|
|
|
52 |
|
|
void init_disk_stat(int start, int end, disk_stat_t *disk_stats){ |
53 |
|
|
|
54 |
|
|
for(disk_stats+=start; start<=end; start++){ |
55 |
|
|
disk_stats->device_name=NULL; |
56 |
|
|
disk_stats->fs_type=NULL; |
57 |
|
|
disk_stats->mnt_point=NULL; |
58 |
|
|
|
59 |
|
|
disk_stats++; |
60 |
|
|
} |
61 |
|
|
} |
62 |
|
|
|
63 |
|
|
disk_stat_t *get_disk_stats(int *entries){ |
64 |
|
|
|
65 |
|
|
static disk_stat_t *disk_stats; |
66 |
|
|
static int watermark=-1; |
67 |
|
|
|
68 |
|
|
char *fs_types[] = VALID_FS_TYPES; |
69 |
|
|
int x, valid_type; |
70 |
|
|
|
71 |
|
|
int num_disks=0; |
72 |
|
|
struct mnttab mp; |
73 |
|
|
struct statvfs fs; |
74 |
|
|
FILE *f; |
75 |
|
|
|
76 |
|
|
disk_stat_t *disk_ptr; |
77 |
|
|
|
78 |
|
|
if(watermark==-1){ |
79 |
|
|
disk_stats=malloc(START_VAL * sizeof(disk_stat_t)); |
80 |
|
|
if(disk_stats==NULL){ |
81 |
|
|
return NULL; |
82 |
|
|
} |
83 |
|
|
watermark=START_VAL; |
84 |
|
|
init_disk_stat(0, watermark-1, disk_stats); |
85 |
|
|
} |
86 |
|
|
|
87 |
|
|
|
88 |
|
|
if ((f=fopen("/etc/mnttab", "r" ))==NULL){ |
89 |
|
|
return NULL; |
90 |
|
|
} |
91 |
|
|
while((getmntent(f, &mp)) == 0){ |
92 |
|
|
if ((statvfs(mp.mnt_mountp, &fs)) !=0){ |
93 |
|
|
continue; |
94 |
|
|
} |
95 |
|
|
|
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 |
|
|
|
104 |
|
|
if(valid_type){ |
105 |
|
|
if(num_disks>watermark-1){ |
106 |
|
|
disk_ptr=disk_stats; |
107 |
|
|
if((disk_stats=realloc(disk_stats, (watermark*2 * sizeof(disk_stat_t))))==NULL){ |
108 |
|
|
disk_stats=disk_ptr; |
109 |
|
|
return NULL; |
110 |
|
|
} |
111 |
|
|
|
112 |
|
|
watermark=watermark*2; |
113 |
|
|
init_disk_stat(num_disks, watermark-1, disk_stats); |
114 |
|
|
} |
115 |
|
|
|
116 |
|
|
disk_ptr=disk_stats+num_disks; |
117 |
|
|
|
118 |
|
|
/* Memory leak in event of realloc failing */ |
119 |
|
|
/* Maybe make this char[bigenough] and do strncpy's and put a null in the end? |
120 |
|
|
Downside is its a bit hungry for a lot of mounts, as MNT_MAX_SIZE woul prob be upwards |
121 |
|
|
of a k each */ |
122 |
|
|
if((disk_ptr->device_name=copy_string(disk_ptr->device_name, mp.mnt_special))==NULL){ |
123 |
|
|
return NULL; |
124 |
|
|
} |
125 |
|
|
|
126 |
|
|
if((disk_ptr->fs_type=copy_string(disk_ptr->fs_type, mp.mnt_fstype))==NULL){ |
127 |
|
|
return NULL; |
128 |
|
|
} |
129 |
|
|
|
130 |
|
|
if((disk_ptr->mnt_point=copy_string(disk_ptr->mnt_point, mp.mnt_mountp))==NULL){ |
131 |
|
|
return NULL; |
132 |
|
|
} |
133 |
|
|
|
134 |
|
|
disk_ptr->size = (long long)fs.f_frsize * (long long)fs.f_blocks; |
135 |
|
|
disk_ptr->avail = (long long)fs.f_frsize * (long long)fs.f_bavail; |
136 |
|
|
disk_ptr->used = (disk_ptr->size) - ((long long)fs.f_frsize * (long long)fs.f_bfree); |
137 |
|
|
|
138 |
|
|
disk_ptr->total_inodes=(long long)fs.f_files; |
139 |
|
|
disk_ptr->used_inodes=disk_ptr->total_inodes - (long long)fs.f_ffree; |
140 |
|
|
disk_ptr->free_inodes=(long long)fs.f_favail; |
141 |
|
|
|
142 |
|
|
num_disks++; |
143 |
|
|
} |
144 |
|
|
} |
145 |
|
|
|
146 |
|
|
*entries=num_disks; |
147 |
|
|
|
148 |
|
|
/* If this fails, there is very little i can do about it, so i'll ignore it :) */ |
149 |
|
|
fclose(f); |
150 |
|
|
|
151 |
|
|
return disk_stats; |
152 |
|
|
|
153 |
|
|
} |
154 |
pajs |
1.2 |
|
155 |
pajs |
1.4 |
void diskio_stat_init(int start, int end, diskio_stat_t *diskio_stats){ |
156 |
|
|
|
157 |
|
|
for(diskio_stats+=start; start<end; start++){ |
158 |
|
|
diskio_stats->disk_name=NULL; |
159 |
|
|
|
160 |
|
|
diskio_stats++; |
161 |
|
|
} |
162 |
|
|
} |
163 |
|
|
|
164 |
|
|
diskio_stat_t *diskio_stat_malloc(int needed_entries, int *cur_entries, diskio_stat_t *diskio_stats){ |
165 |
|
|
|
166 |
|
|
if(diskio_stats==NULL){ |
167 |
|
|
|
168 |
|
|
if((diskio_stats=malloc(needed_entries * sizeof(diskio_stat_t)))==NULL){ |
169 |
|
|
return NULL; |
170 |
|
|
} |
171 |
|
|
diskio_stat_init(0, needed_entries, diskio_stats); |
172 |
|
|
*cur_entries=needed_entries; |
173 |
|
|
|
174 |
|
|
return diskio_stats; |
175 |
|
|
} |
176 |
|
|
|
177 |
|
|
|
178 |
|
|
if(*cur_entries<needed_entries){ |
179 |
|
|
diskio_stats=realloc(diskio_stats, (sizeof(diskio_stat_t)*needed_entries)); |
180 |
|
|
if(diskio_stats==NULL){ |
181 |
|
|
return NULL; |
182 |
|
|
} |
183 |
|
|
diskio_stat_init(*cur_entries, needed_entries, diskio_stats); |
184 |
|
|
*cur_entries=needed_entries; |
185 |
|
|
} |
186 |
|
|
|
187 |
|
|
return diskio_stats; |
188 |
|
|
} |
189 |
|
|
|
190 |
|
|
static diskio_stat_t *diskio_stats=NULL; |
191 |
pajs |
1.5 |
static int num_diskio=0; |
192 |
pajs |
1.4 |
|
193 |
tdb |
1.3 |
diskio_stat_t *get_diskio_stats(int *entries){ |
194 |
pajs |
1.2 |
|
195 |
pajs |
1.4 |
static int sizeof_diskio_stats=0; |
196 |
|
|
diskio_stat_t *diskio_stats_ptr; |
197 |
|
|
|
198 |
|
|
kstat_ctl_t *kc; |
199 |
|
|
kstat_t *ksp; |
200 |
|
|
kstat_io_t kios; |
201 |
|
|
|
202 |
|
|
if ((kc = kstat_open()) == NULL) { |
203 |
|
|
return NULL; |
204 |
|
|
} |
205 |
|
|
|
206 |
pajs |
1.5 |
num_diskio=0; |
207 |
|
|
|
208 |
pajs |
1.4 |
for (ksp = kc->kc_chain; ksp; ksp = ksp->ks_next) { |
209 |
|
|
if (!strcmp(ksp->ks_class, "disk")) { |
210 |
|
|
|
211 |
|
|
if(ksp->ks_type != KSTAT_TYPE_IO) continue; |
212 |
pajs |
1.5 |
/* We dont want metadevices appearins as num_diskio */ |
213 |
pajs |
1.4 |
if(strcmp(ksp->ks_module, "md")==0) continue; |
214 |
|
|
if((kstat_read(kc, ksp, &kios))==-1){ |
215 |
|
|
} |
216 |
|
|
|
217 |
pajs |
1.5 |
if((diskio_stats=diskio_stat_malloc(num_diskio+1, &sizeof_diskio_stats, diskio_stats))==NULL){ |
218 |
pajs |
1.4 |
kstat_close(kc); |
219 |
|
|
return NULL; |
220 |
|
|
} |
221 |
pajs |
1.5 |
diskio_stats_ptr=diskio_stats+num_diskio; |
222 |
pajs |
1.4 |
|
223 |
|
|
diskio_stats_ptr->read_bytes=kios.nread; |
224 |
|
|
|
225 |
|
|
diskio_stats_ptr->write_bytes=kios.nwritten; |
226 |
|
|
|
227 |
|
|
if(diskio_stats_ptr->disk_name!=NULL) free(diskio_stats_ptr->disk_name); |
228 |
|
|
|
229 |
|
|
diskio_stats_ptr->disk_name=strdup(ksp->ks_name); |
230 |
pajs |
1.5 |
num_diskio++; |
231 |
pajs |
1.4 |
} |
232 |
|
|
} |
233 |
|
|
|
234 |
|
|
kstat_close(kc); |
235 |
|
|
|
236 |
pajs |
1.5 |
*entries=num_diskio; |
237 |
pajs |
1.4 |
|
238 |
|
|
return diskio_stats; |
239 |
pajs |
1.5 |
} |
240 |
|
|
|
241 |
pajs |
1.6 |
diskio_stat_t *get_diskio_stats_diff(int *entries){ |
242 |
pajs |
1.5 |
static diskio_stat_t *diskio_stats_diff=NULL; |
243 |
|
|
static int sizeof_diskio_stats_diff=0; |
244 |
|
|
diskio_stat_t *diskio_stats_diff_ptr, *diskio_stats_ptr; |
245 |
|
|
int disks, x, y; |
246 |
|
|
|
247 |
|
|
if(diskio_stats==NULL){ |
248 |
|
|
diskio_stats_ptr=get_diskio_stats(&disks); |
249 |
|
|
*entries=disks; |
250 |
|
|
return diskio_stats_ptr; |
251 |
|
|
} |
252 |
|
|
|
253 |
|
|
diskio_stats_diff=diskio_stat_malloc(num_diskio, &sizeof_diskio_stats_diff, diskio_stats_diff); |
254 |
|
|
if(diskio_stats_diff==NULL){ |
255 |
|
|
return NULL; |
256 |
|
|
} |
257 |
|
|
|
258 |
|
|
diskio_stats_diff_ptr=diskio_stats_diff; |
259 |
|
|
diskio_stats_ptr=diskio_stats; |
260 |
|
|
|
261 |
|
|
for(disks=0;disks<num_diskio;disks++){ |
262 |
|
|
if(diskio_stats_diff_ptr->disk_name!=NULL){ |
263 |
|
|
free(diskio_stats_diff_ptr->disk_name); |
264 |
|
|
} |
265 |
|
|
diskio_stats_diff_ptr->disk_name=strdup(diskio_stats_ptr->disk_name); |
266 |
|
|
diskio_stats_diff_ptr->read_bytes=diskio_stats_ptr->read_bytes; |
267 |
|
|
diskio_stats_diff_ptr->write_bytes=diskio_stats_ptr->write_bytes; |
268 |
|
|
diskio_stats_diff_ptr->systime=diskio_stats_ptr->systime; |
269 |
|
|
|
270 |
|
|
diskio_stats_diff_ptr++; |
271 |
|
|
diskio_stats_ptr++; |
272 |
|
|
} |
273 |
|
|
|
274 |
|
|
diskio_stats_ptr=get_diskio_stats(&disks); |
275 |
|
|
diskio_stats_diff_ptr=diskio_stats_diff; |
276 |
|
|
|
277 |
|
|
for(x=0;x<sizeof_diskio_stats_diff;x++){ |
278 |
|
|
|
279 |
|
|
if((strcmp(diskio_stats_diff_ptr->disk_name, diskio_stats_ptr->disk_name))==0){ |
280 |
|
|
diskio_stats_diff_ptr->read_bytes=diskio_stats_ptr->read_bytes-diskio_stats_diff_ptr->read_bytes; |
281 |
|
|
diskio_stats_diff_ptr->write_bytes=diskio_stats_ptr->write_bytes-diskio_stats_diff_ptr->write_bytes; |
282 |
|
|
diskio_stats_diff_ptr->systime=diskio_stats_ptr->systime-diskio_stats_diff_ptr->systime; |
283 |
|
|
}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++; |
295 |
|
|
} |
296 |
|
|
} |
297 |
|
|
|
298 |
|
|
diskio_stats_ptr++; |
299 |
|
|
diskio_stats_diff_ptr++; |
300 |
|
|
|
301 |
|
|
} |
302 |
pajs |
1.8 |
|
303 |
|
|
*entries=sizeof_diskio_stats_diff; |
304 |
pajs |
1.5 |
return diskio_stats_diff; |
305 |
pajs |
1.2 |
} |