1 |
< |
/* |
2 |
< |
* i-scream central monitoring system |
3 |
< |
* http://www.i-scream.org.uk |
4 |
< |
* Copyright (C) 2000-2002 i-scream |
1 |
> |
/* |
2 |
> |
* i-scream libstatgrab |
3 |
> |
* http://www.i-scream.org |
4 |
> |
* Copyright (C) 2000-2004 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 |
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* of the License, or (at your option) any later version. |
6 |
> |
* This library is free software; you can redistribute it and/or |
7 |
> |
* modify it under the terms of the GNU Lesser General Public |
8 |
> |
* License as published by the Free Software Foundation; either |
9 |
> |
* version 2.1 of the License, or (at your option) any later version. |
10 |
|
* |
11 |
< |
* This program is distributed in the hope that it will be useful, |
11 |
> |
* This library 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. |
13 |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
14 |
> |
* Lesser General Public License for more details. |
15 |
|
* |
16 |
< |
* 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. |
16 |
> |
* 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 |
> |
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
19 |
> |
* 02111-1307 USA |
20 |
> |
* |
21 |
> |
* $Id$ |
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 "statgrab.h" |
26 |
– |
#include <stdlib.h> |
28 |
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#include <stdio.h> |
29 |
< |
#include "ukcprog.h" |
29 |
> |
#include <stdlib.h> |
30 |
|
#include <string.h> |
31 |
+ |
#include <time.h> |
32 |
+ |
#include "statgrab.h" |
33 |
+ |
#include "vector.h" |
34 |
+ |
#include "tools.h" |
35 |
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|
36 |
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#ifdef SOLARIS |
37 |
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#include <sys/mnttab.h> |
33 |
– |
#include <sys/types.h> |
38 |
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#include <sys/statvfs.h> |
39 |
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#include <kstat.h> |
40 |
+ |
#define VALID_FS_TYPES {"ufs", "tmpfs", "vxfs"} |
41 |
+ |
#endif |
42 |
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|
43 |
< |
#define VALID_FS_TYPES {"ufs", "tmpfs"} |
43 |
> |
#if defined(LINUX) || defined(CYGWIN) |
44 |
> |
#include <mntent.h> |
45 |
> |
#include <sys/vfs.h> |
46 |
> |
#endif |
47 |
|
|
48 |
+ |
#ifdef LINUX |
49 |
+ |
#define VALID_FS_TYPES {"adfs", "affs", "befs", "bfs", "efs", "ext2", \ |
50 |
+ |
"ext3", "vxfs", "hfs", "hfsplus", "hpfs", "jffs", \ |
51 |
+ |
"jffs2", "minix", "msdos", "ntfs", "qnx4", "ramfs", \ |
52 |
+ |
"rootfs", "reiserfs", "sysv", "v7", "udf", "ufs", \ |
53 |
+ |
"umsdos", "vfat", "xfs", "jfs"} |
54 |
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#endif |
55 |
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|
56 |
< |
#define START_VAL 1 |
56 |
> |
#ifdef CYGWIN |
57 |
> |
#define VALID_FS_TYPES {"user"} |
58 |
> |
#endif |
59 |
|
|
60 |
< |
char *copy_string(char *orig_ptr, const char *newtext){ |
60 |
> |
#ifdef ALLBSD |
61 |
> |
#include <sys/param.h> |
62 |
> |
#include <sys/ucred.h> |
63 |
> |
#include <sys/mount.h> |
64 |
> |
#endif |
65 |
> |
#if defined(FREEBSD) || defined(DFBSD) |
66 |
> |
#include <sys/dkstat.h> |
67 |
> |
#include <devstat.h> |
68 |
> |
#define VALID_FS_TYPES {"hpfs", "msdosfs", "ntfs", "udf", "ext2fs", \ |
69 |
> |
"ufs", "mfs"} |
70 |
> |
#endif |
71 |
> |
#if defined(NETBSD) || defined(OPENBSD) |
72 |
> |
#include <sys/param.h> |
73 |
> |
#include <sys/sysctl.h> |
74 |
> |
#include <sys/disk.h> |
75 |
> |
#define VALID_FS_TYPES {"ffs", "mfs", "msdos", "lfs", "adosfs", "ext2fs", \ |
76 |
> |
"ntfs"} |
77 |
> |
#endif |
78 |
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|
79 |
< |
/* Maybe free if not NULL, and strdup rather than realloc and strcpy? */ |
80 |
< |
orig_ptr=realloc(orig_ptr, (1+strlen(newtext))); |
81 |
< |
if(orig_ptr==NULL){ |
82 |
< |
return NULL; |
83 |
< |
} |
84 |
< |
strcpy(orig_ptr, newtext); |
79 |
> |
#ifdef HPUX |
80 |
> |
#include <sys/param.h> |
81 |
> |
#include <sys/pstat.h> |
82 |
> |
#include <sys/types.h> |
83 |
> |
#include <sys/stat.h> |
84 |
> |
#include <sys/vfs.h> |
85 |
> |
#include <mntent.h> |
86 |
> |
#include <dirent.h> |
87 |
> |
#include <stdio.h> |
88 |
> |
#include <time.h> |
89 |
> |
#define VALID_FS_TYPES {"vxfs", "hfs"} |
90 |
> |
#endif |
91 |
|
|
92 |
< |
return orig_ptr; |
92 |
> |
static void disk_stat_init(sg_fs_stats *d) { |
93 |
> |
d->device_name = NULL; |
94 |
> |
d->fs_type = NULL; |
95 |
> |
d->mnt_point = NULL; |
96 |
|
} |
97 |
|
|
98 |
+ |
static void disk_stat_destroy(sg_fs_stats *d) { |
99 |
+ |
free(d->device_name); |
100 |
+ |
free(d->fs_type); |
101 |
+ |
free(d->mnt_point); |
102 |
+ |
} |
103 |
|
|
104 |
< |
void init_disk_stat(int start, int end, disk_stat_t *disk_stats){ |
104 |
> |
static int is_valid_fs_type(const char *type) { |
105 |
> |
const char *types[] = VALID_FS_TYPES; |
106 |
> |
int i; |
107 |
|
|
108 |
< |
for(disk_stats+=start; start<=end; start++){ |
109 |
< |
disk_stats->device_name=NULL; |
110 |
< |
disk_stats->fs_type=NULL; |
111 |
< |
disk_stats->mnt_point=NULL; |
62 |
< |
|
63 |
< |
disk_stats++; |
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 |
< |
disk_stat_t *get_disk_stats(int *entries){ |
116 |
> |
sg_fs_stats *sg_get_fs_stats(int *entries){ |
117 |
> |
VECTOR_DECLARE_STATIC(disk_stats, sg_fs_stats, 10, |
118 |
> |
disk_stat_init, disk_stat_destroy); |
119 |
|
|
120 |
< |
static disk_stat_t *disk_stats; |
121 |
< |
static int watermark=-1; |
120 |
> |
int valid_type; |
121 |
> |
int num_disks=0; |
122 |
> |
#if defined(LINUX) || defined (SOLARIS) || defined(CYGWIN) || defined(HPUX) |
123 |
> |
FILE *f; |
124 |
> |
#endif |
125 |
|
|
126 |
< |
char *fs_types[] = VALID_FS_TYPES; |
73 |
< |
int x, valid_type; |
126 |
> |
sg_fs_stats *disk_ptr; |
127 |
|
|
128 |
< |
int num_disks=0; |
128 |
> |
#ifdef SOLARIS |
129 |
|
struct mnttab mp; |
130 |
|
struct statvfs fs; |
131 |
< |
FILE *f; |
131 |
> |
#endif |
132 |
> |
#if defined(LINUX) || defined(CYGWIN) || defined(HPUX) |
133 |
> |
struct mntent *mp; |
134 |
> |
struct statfs fs; |
135 |
> |
#endif |
136 |
> |
#ifdef ALLBSD |
137 |
> |
int nummnt; |
138 |
> |
#ifdef HAVE_STATVFS |
139 |
> |
struct statvfs *mp; |
140 |
> |
#else |
141 |
> |
struct statfs *mp; |
142 |
> |
#endif |
143 |
> |
#endif |
144 |
|
|
145 |
< |
disk_stat_t *disk_ptr; |
145 |
> |
#ifdef ALLBSD |
146 |
> |
nummnt=getmntinfo(&mp , MNT_LOCAL); |
147 |
> |
if (nummnt<=0){ |
148 |
> |
sg_set_error_with_errno(SG_ERROR_GETMNTINFO, NULL); |
149 |
> |
return NULL; |
150 |
> |
} |
151 |
> |
for(;nummnt--; mp++){ |
152 |
> |
valid_type = is_valid_fs_type(mp->f_fstypename); |
153 |
> |
#endif |
154 |
|
|
155 |
< |
if(watermark==-1){ |
156 |
< |
disk_stats=malloc(START_VAL * sizeof(disk_stat_t)); |
157 |
< |
if(disk_stats==NULL){ |
158 |
< |
return NULL; |
159 |
< |
} |
160 |
< |
watermark=START_VAL; |
161 |
< |
init_disk_stat(0, watermark-1, disk_stats); |
155 |
> |
#if defined(LINUX) || defined(CYGWIN) || defined(HPUX) |
156 |
> |
#ifdef MNT_MNTTAB |
157 |
> |
if ((f=setmntent(MNT_MNTTAB, "r" ))==NULL){ |
158 |
> |
#else |
159 |
> |
if ((f=setmntent("/etc/mtab", "r" ))==NULL){ |
160 |
> |
#endif |
161 |
> |
sg_set_error(SG_ERROR_SETMNTENT, NULL); |
162 |
> |
return NULL; |
163 |
|
} |
164 |
|
|
165 |
+ |
while((mp=getmntent(f))){ |
166 |
+ |
if((statfs(mp->mnt_dir, &fs)) !=0){ |
167 |
+ |
continue; |
168 |
+ |
} |
169 |
|
|
170 |
+ |
valid_type = is_valid_fs_type(mp->mnt_type); |
171 |
+ |
#endif |
172 |
+ |
|
173 |
+ |
#ifdef SOLARIS |
174 |
|
if ((f=fopen("/etc/mnttab", "r" ))==NULL){ |
175 |
+ |
sg_set_error_with_errno(SG_ERROR_OPEN, "/etc/mnttab"); |
176 |
|
return NULL; |
177 |
|
} |
178 |
|
while((getmntent(f, &mp)) == 0){ |
179 |
|
if ((statvfs(mp.mnt_mountp, &fs)) !=0){ |
180 |
|
continue; |
181 |
|
} |
182 |
+ |
valid_type = is_valid_fs_type(mp.mnt_fstype); |
183 |
+ |
#endif |
184 |
|
|
185 |
< |
valid_type=0; |
186 |
< |
for(x=0;x<((sizeof(fs_types))/(sizeof(char*)));x++){ |
187 |
< |
if(strcmp(mp.mnt_fstype, fs_types[x]) ==0){ |
103 |
< |
valid_type=1; |
104 |
< |
break; |
185 |
> |
if(valid_type){ |
186 |
> |
if (VECTOR_RESIZE(disk_stats, num_disks + 1) < 0) { |
187 |
> |
return NULL; |
188 |
|
} |
189 |
< |
} |
189 |
> |
disk_ptr=disk_stats+num_disks; |
190 |
|
|
191 |
< |
if(valid_type){ |
192 |
< |
if(num_disks>watermark-1){ |
193 |
< |
disk_ptr=disk_stats; |
194 |
< |
if((disk_stats=realloc(disk_stats, (watermark*2 * sizeof(disk_stat_t))))==NULL){ |
195 |
< |
disk_stats=disk_ptr; |
196 |
< |
return NULL; |
197 |
< |
} |
191 |
> |
#ifdef ALLBSD |
192 |
> |
if (sg_update_string(&disk_ptr->device_name, mp->f_mntfromname) < 0) { |
193 |
> |
return NULL; |
194 |
> |
} |
195 |
> |
if (sg_update_string(&disk_ptr->fs_type, mp->f_fstypename) < 0) { |
196 |
> |
return NULL; |
197 |
> |
} |
198 |
> |
if (sg_update_string(&disk_ptr->mnt_point, mp->f_mntonname) < 0) { |
199 |
> |
return NULL; |
200 |
> |
} |
201 |
|
|
202 |
< |
watermark=watermark*2; |
203 |
< |
init_disk_stat(num_disks, watermark-1, disk_stats); |
202 |
> |
disk_ptr->size = (long long)mp->f_bsize * (long long) mp->f_blocks; |
203 |
> |
disk_ptr->avail = (long long)mp->f_bsize * (long long) mp->f_bavail; |
204 |
> |
disk_ptr->used = (disk_ptr->size) - ((long long)mp->f_bsize * (long long)mp->f_bfree); |
205 |
> |
|
206 |
> |
disk_ptr->total_inodes=(long long)mp->f_files; |
207 |
> |
disk_ptr->free_inodes=(long long)mp->f_ffree; |
208 |
> |
/* Freebsd doesn't have a "available" inodes */ |
209 |
> |
disk_ptr->used_inodes=disk_ptr->total_inodes-disk_ptr->free_inodes; |
210 |
> |
#endif |
211 |
> |
#if defined(LINUX) || defined(CYGWIN) || defined(HPUX) |
212 |
> |
if (sg_update_string(&disk_ptr->device_name, mp->mnt_fsname) < 0) { |
213 |
> |
return NULL; |
214 |
|
} |
215 |
+ |
|
216 |
+ |
if (sg_update_string(&disk_ptr->fs_type, mp->mnt_type) < 0) { |
217 |
+ |
return NULL; |
218 |
+ |
} |
219 |
|
|
220 |
< |
disk_ptr=disk_stats+num_disks; |
221 |
< |
|
222 |
< |
/* Memory leak in event of realloc failing */ |
220 |
> |
if (sg_update_string(&disk_ptr->mnt_point, mp->mnt_dir) < 0) { |
221 |
> |
return NULL; |
222 |
> |
} |
223 |
> |
disk_ptr->size = (long long)fs.f_bsize * (long long)fs.f_blocks; |
224 |
> |
disk_ptr->avail = (long long)fs.f_bsize * (long long)fs.f_bavail; |
225 |
> |
disk_ptr->used = (disk_ptr->size) - ((long long)fs.f_bsize * (long long)fs.f_bfree); |
226 |
> |
|
227 |
> |
disk_ptr->total_inodes=(long long)fs.f_files; |
228 |
> |
disk_ptr->free_inodes=(long long)fs.f_ffree; |
229 |
> |
/* Linux doesn't have a "available" inodes */ |
230 |
> |
disk_ptr->used_inodes=disk_ptr->total_inodes-disk_ptr->free_inodes; |
231 |
> |
#endif |
232 |
> |
|
233 |
> |
#ifdef SOLARIS |
234 |
|
/* Maybe make this char[bigenough] and do strncpy's and put a null in the end? |
235 |
< |
Downside is its a bit hungry for a lot of mounts, as MNT_MAX_SIZE woul prob be upwards |
236 |
< |
of a k each */ |
237 |
< |
if((disk_ptr->device_name=copy_string(disk_ptr->device_name, mp.mnt_special))==NULL){ |
235 |
> |
* Downside is its a bit hungry for a lot of mounts, as MNT_MAX_SIZE would prob |
236 |
> |
* be upwards of a k each |
237 |
> |
*/ |
238 |
> |
if (sg_update_string(&disk_ptr->device_name, mp.mnt_special) < 0) { |
239 |
|
return NULL; |
240 |
|
} |
241 |
|
|
242 |
< |
if((disk_ptr->fs_type=copy_string(disk_ptr->fs_type, mp.mnt_fstype))==NULL){ |
243 |
< |
return NULL; |
244 |
< |
} |
242 |
> |
if (sg_update_string(&disk_ptr->fs_type, mp.mnt_fstype) < 0) { |
243 |
> |
return NULL; |
244 |
> |
} |
245 |
|
|
246 |
< |
if((disk_ptr->mnt_point=copy_string(disk_ptr->mnt_point, mp.mnt_mountp))==NULL){ |
247 |
< |
return NULL; |
248 |
< |
} |
246 |
> |
if (sg_update_string(&disk_ptr->mnt_point, mp.mnt_mountp) < 0) { |
247 |
> |
return NULL; |
248 |
> |
} |
249 |
|
|
250 |
|
disk_ptr->size = (long long)fs.f_frsize * (long long)fs.f_blocks; |
251 |
|
disk_ptr->avail = (long long)fs.f_frsize * (long long)fs.f_bavail; |
254 |
|
disk_ptr->total_inodes=(long long)fs.f_files; |
255 |
|
disk_ptr->used_inodes=disk_ptr->total_inodes - (long long)fs.f_ffree; |
256 |
|
disk_ptr->free_inodes=(long long)fs.f_favail; |
257 |
< |
|
257 |
> |
#endif |
258 |
|
num_disks++; |
259 |
|
} |
260 |
|
} |
261 |
|
|
262 |
|
*entries=num_disks; |
263 |
|
|
264 |
< |
/* If this fails, there is very little i can do about it, so i'll ignore it :) */ |
264 |
> |
/* If this fails, there is very little i can do about it, so |
265 |
> |
I'll ignore it :) */ |
266 |
> |
#if defined(LINUX) || defined(CYGWIN) || defined(HPUX) |
267 |
> |
endmntent(f); |
268 |
> |
#endif |
269 |
> |
#if defined(SOLARIS) |
270 |
|
fclose(f); |
271 |
+ |
#endif |
272 |
|
|
273 |
|
return disk_stats; |
274 |
|
|
275 |
|
} |
276 |
|
|
277 |
< |
void diskio_stat_init(int start, int end, diskio_stat_t *diskio_stats){ |
277 |
> |
int sg_fs_compare_device_name(const void *va, const void *vb) { |
278 |
> |
const sg_fs_stats *a = (const sg_fs_stats *)va; |
279 |
> |
const sg_fs_stats *b = (const sg_fs_stats *)vb; |
280 |
|
|
281 |
< |
for(diskio_stats+=start; start<end; start++){ |
162 |
< |
diskio_stats->disk_name=NULL; |
163 |
< |
|
164 |
< |
diskio_stats++; |
165 |
< |
} |
281 |
> |
return strcmp(a->device_name, b->device_name); |
282 |
|
} |
283 |
|
|
284 |
< |
diskio_stat_t *diskio_stat_malloc(int needed_entries, int *cur_entries, diskio_stat_t *diskio_stats){ |
284 |
> |
int sg_fs_compare_mnt_point(const void *va, const void *vb) { |
285 |
> |
const sg_fs_stats *a = (const sg_fs_stats *)va; |
286 |
> |
const sg_fs_stats *b = (const sg_fs_stats *)vb; |
287 |
|
|
288 |
< |
if(diskio_stats==NULL){ |
288 |
> |
return strcmp(a->mnt_point, b->mnt_point); |
289 |
> |
} |
290 |
|
|
291 |
< |
if((diskio_stats=malloc(needed_entries * sizeof(diskio_stat_t)))==NULL){ |
292 |
< |
return NULL; |
293 |
< |
} |
175 |
< |
diskio_stat_init(0, needed_entries, diskio_stats); |
176 |
< |
*cur_entries=needed_entries; |
291 |
> |
static void diskio_stat_init(sg_disk_io_stats *d) { |
292 |
> |
d->disk_name = NULL; |
293 |
> |
} |
294 |
|
|
295 |
< |
return diskio_stats; |
296 |
< |
} |
295 |
> |
static void diskio_stat_destroy(sg_disk_io_stats *d) { |
296 |
> |
free(d->disk_name); |
297 |
> |
} |
298 |
|
|
299 |
+ |
VECTOR_DECLARE_STATIC(diskio_stats, sg_disk_io_stats, 10, |
300 |
+ |
diskio_stat_init, diskio_stat_destroy); |
301 |
|
|
302 |
< |
if(*cur_entries<needed_entries){ |
303 |
< |
diskio_stats=realloc(diskio_stats, (sizeof(diskio_stat_t)*needed_entries)); |
304 |
< |
if(diskio_stats==NULL){ |
305 |
< |
return NULL; |
306 |
< |
} |
307 |
< |
diskio_stat_init(*cur_entries, needed_entries, diskio_stats); |
188 |
< |
*cur_entries=needed_entries; |
189 |
< |
} |
302 |
> |
#ifdef LINUX |
303 |
> |
typedef struct { |
304 |
> |
int major; |
305 |
> |
int minor; |
306 |
> |
} partition; |
307 |
> |
#endif |
308 |
|
|
309 |
< |
return diskio_stats; |
310 |
< |
} |
309 |
> |
sg_disk_io_stats *sg_get_disk_io_stats(int *entries){ |
310 |
> |
int num_diskio; |
311 |
> |
#ifndef LINUX |
312 |
> |
sg_disk_io_stats *diskio_stats_ptr; |
313 |
> |
#endif |
314 |
|
|
315 |
< |
static diskio_stat_t *diskio_stats=NULL; |
316 |
< |
static int num_diskio=0; |
315 |
> |
#ifdef HPUX |
316 |
> |
long long rbytes = 0, wbytes = 0; |
317 |
> |
struct dirent *dinfo = NULL; |
318 |
> |
struct stat lstatinfo; |
319 |
> |
struct pst_diskinfo pstat_diskinfo; |
320 |
> |
char fullpathbuf[1024] = {0}; |
321 |
> |
dev_t diskid; |
322 |
> |
DIR *dh = NULL; |
323 |
> |
int disknum = 0; |
324 |
> |
#endif |
325 |
> |
#ifdef SOLARIS |
326 |
> |
kstat_ctl_t *kc; |
327 |
> |
kstat_t *ksp; |
328 |
> |
kstat_io_t kios; |
329 |
> |
#endif |
330 |
> |
#ifdef LINUX |
331 |
> |
FILE *f; |
332 |
> |
char *line_ptr; |
333 |
> |
int major, minor; |
334 |
> |
int has_pp_stats = 1; |
335 |
> |
VECTOR_DECLARE_STATIC(parts, partition, 16, NULL, NULL); |
336 |
> |
int i, n; |
337 |
> |
time_t now; |
338 |
> |
const char *format; |
339 |
> |
#endif |
340 |
> |
#if defined(FREEBSD) || defined(DFBSD) |
341 |
> |
static struct statinfo stats; |
342 |
> |
static int stats_init = 0; |
343 |
> |
int counter; |
344 |
> |
struct device_selection *dev_sel = NULL; |
345 |
> |
int n_selected, n_selections; |
346 |
> |
long sel_gen; |
347 |
> |
struct devstat *dev_ptr; |
348 |
> |
#endif |
349 |
> |
#ifdef NETBSD |
350 |
> |
struct disk_sysctl *stats; |
351 |
> |
#endif |
352 |
> |
#ifdef OPENBSD |
353 |
> |
int diskcount; |
354 |
> |
char *disknames, *name, *bufpp; |
355 |
> |
char **dk_name; |
356 |
> |
struct diskstats *stats; |
357 |
> |
#endif |
358 |
> |
#ifdef NETBSD |
359 |
> |
#define MIBSIZE 3 |
360 |
> |
#endif |
361 |
> |
#ifdef OPENBSD |
362 |
> |
#define MIBSIZE 2 |
363 |
> |
#endif |
364 |
> |
#if defined(NETBSD) || defined(OPENBSD) |
365 |
> |
int num_disks, i; |
366 |
> |
int mib[MIBSIZE]; |
367 |
> |
size_t size; |
368 |
> |
#endif |
369 |
|
|
370 |
< |
diskio_stat_t *get_diskio_stats(int *entries){ |
370 |
> |
num_diskio=0; |
371 |
|
|
372 |
< |
static int sizeof_diskio_stats=0; |
200 |
< |
diskio_stat_t *diskio_stats_ptr; |
372 |
> |
#ifdef HPUX |
373 |
|
|
374 |
< |
kstat_ctl_t *kc; |
375 |
< |
kstat_t *ksp; |
376 |
< |
kstat_io_t kios; |
374 |
> |
/* The "128" here is arbitrary, it can be increased to any number |
375 |
> |
at the expense of only more system calls to pstat(). */ |
376 |
> |
for (disknum = 0; disknum < 128; disknum++) { |
377 |
> |
if (pstat_getdisk(&pstat_diskinfo, sizeof(pstat_diskinfo), 1, disknum) == -1) { |
378 |
> |
break; |
379 |
> |
} |
380 |
|
|
381 |
< |
if ((kc = kstat_open()) == NULL) { |
382 |
< |
return NULL; |
383 |
< |
} |
381 |
> |
if (pstat_diskinfo.psd_idx != disknum) { |
382 |
> |
continue; |
383 |
> |
} |
384 |
|
|
385 |
< |
num_diskio=0; |
385 |
> |
/* Skip "disabled" disks.. */ |
386 |
> |
if (pstat_diskinfo.psd_status == 0) { |
387 |
> |
continue; |
388 |
> |
} |
389 |
|
|
390 |
+ |
/* We can't seperate the reads from the writes, we'll |
391 |
+ |
just give half to each. */ |
392 |
+ |
rbytes = wbytes = (pstat_diskinfo.psd_dkwds * 64); |
393 |
+ |
|
394 |
+ |
/* Skip unused disks. */ |
395 |
+ |
if (rbytes == 0 && wbytes == 0) { |
396 |
+ |
continue; |
397 |
+ |
} |
398 |
+ |
|
399 |
+ |
if (VECTOR_RESIZE(diskio_stats, num_diskio + 1) < 0) { |
400 |
+ |
return NULL; |
401 |
+ |
} |
402 |
+ |
|
403 |
+ |
diskio_stats_ptr = diskio_stats + num_diskio; |
404 |
+ |
|
405 |
+ |
diskio_stats_ptr->read_bytes = rbytes; |
406 |
+ |
diskio_stats_ptr->write_bytes = wbytes; |
407 |
+ |
|
408 |
+ |
diskio_stats_ptr->systime = time(NULL); |
409 |
+ |
|
410 |
+ |
num_diskio++; |
411 |
+ |
|
412 |
+ |
if (diskio_stats_ptr->disk_name == NULL) { |
413 |
+ |
dh = opendir("/dev/dsk"); |
414 |
+ |
if (dh == NULL) { |
415 |
+ |
continue; |
416 |
+ |
} |
417 |
+ |
|
418 |
+ |
diskid = (pstat_diskinfo.psd_dev.psd_major << 24) | pstat_diskinfo.psd_dev.psd_minor; |
419 |
+ |
while (1) { |
420 |
+ |
dinfo = readdir(dh); |
421 |
+ |
if (dinfo == NULL) { |
422 |
+ |
break; |
423 |
+ |
} |
424 |
+ |
snprintf(fullpathbuf, sizeof(fullpathbuf), "/dev/dsk/%s", dinfo->d_name); |
425 |
+ |
if (lstat(fullpathbuf, &lstatinfo) < 0) { |
426 |
+ |
continue; |
427 |
+ |
} |
428 |
+ |
|
429 |
+ |
if (lstatinfo.st_rdev == diskid) { |
430 |
+ |
if (sg_update_string(&diskio_stats_ptr->disk_name, dinfo->d_name) < 0) { |
431 |
+ |
return NULL; |
432 |
+ |
} |
433 |
+ |
break; |
434 |
+ |
} |
435 |
+ |
} |
436 |
+ |
closedir(dh); |
437 |
+ |
|
438 |
+ |
if (diskio_stats_ptr->disk_name == NULL) { |
439 |
+ |
if (sg_update_string(&diskio_stats_ptr->disk_name, pstat_diskinfo.psd_hw_path.psh_name) < 0) { |
440 |
+ |
return NULL; |
441 |
+ |
} |
442 |
+ |
} |
443 |
+ |
} |
444 |
+ |
} |
445 |
+ |
#endif |
446 |
+ |
#ifdef OPENBSD |
447 |
+ |
mib[0] = CTL_HW; |
448 |
+ |
mib[1] = HW_DISKCOUNT; |
449 |
+ |
|
450 |
+ |
size = sizeof(diskcount); |
451 |
+ |
if (sysctl(mib, MIBSIZE, &diskcount, &size, NULL, 0) < 0) { |
452 |
+ |
sg_set_error_with_errno(SG_ERROR_SYSCTL, "CTL_HW.HW_DISKCOUNT"); |
453 |
+ |
return NULL; |
454 |
+ |
} |
455 |
+ |
|
456 |
+ |
mib[0] = CTL_HW; |
457 |
+ |
mib[1] = HW_DISKNAMES; |
458 |
+ |
|
459 |
+ |
if (sysctl(mib, MIBSIZE, NULL, &size, NULL, 0) < 0) { |
460 |
+ |
sg_set_error_with_errno(SG_ERROR_SYSCTL, "CTL_HW.HW_DISKNAMES"); |
461 |
+ |
return NULL; |
462 |
+ |
} |
463 |
+ |
|
464 |
+ |
disknames = sg_malloc(size); |
465 |
+ |
if (disknames == NULL) { |
466 |
+ |
return NULL; |
467 |
+ |
} |
468 |
+ |
|
469 |
+ |
if (sysctl(mib, MIBSIZE, disknames, &size, NULL, 0) < 0) { |
470 |
+ |
sg_set_error_with_errno(SG_ERROR_SYSCTL, "CTL_HW.HW_DISKNAMES"); |
471 |
+ |
return NULL; |
472 |
+ |
} |
473 |
+ |
|
474 |
+ |
dk_name = sg_malloc(diskcount * sizeof(char *)); |
475 |
+ |
bufpp = disknames; |
476 |
+ |
for (i = 0; i < diskcount && (name = strsep(&bufpp, ",")) != NULL; i++) { |
477 |
+ |
dk_name[i] = name; |
478 |
+ |
} |
479 |
+ |
#endif |
480 |
+ |
|
481 |
+ |
#if defined(NETBSD) || defined(OPENBSD) |
482 |
+ |
mib[0] = CTL_HW; |
483 |
+ |
mib[1] = HW_DISKSTATS; |
484 |
+ |
#ifdef NETBSD |
485 |
+ |
mib[2] = sizeof(struct disk_sysctl); |
486 |
+ |
#endif |
487 |
+ |
|
488 |
+ |
if (sysctl(mib, MIBSIZE, NULL, &size, NULL, 0) < 0) { |
489 |
+ |
sg_set_error_with_errno(SG_ERROR_SYSCTL, "CTL_HW.HW_DISKSTATS"); |
490 |
+ |
return NULL; |
491 |
+ |
} |
492 |
+ |
|
493 |
+ |
#ifdef NETBSD |
494 |
+ |
num_disks = size / sizeof(struct disk_sysctl); |
495 |
+ |
#else |
496 |
+ |
num_disks = size / sizeof(struct diskstats); |
497 |
+ |
#endif |
498 |
+ |
|
499 |
+ |
stats = sg_malloc(size); |
500 |
+ |
if (stats == NULL) { |
501 |
+ |
return NULL; |
502 |
+ |
} |
503 |
+ |
|
504 |
+ |
if (sysctl(mib, MIBSIZE, stats, &size, NULL, 0) < 0) { |
505 |
+ |
sg_set_error_with_errno(SG_ERROR_SYSCTL, "CTL_HW.HW_DISKSTATS"); |
506 |
+ |
return NULL; |
507 |
+ |
} |
508 |
+ |
|
509 |
+ |
for (i = 0; i < num_disks; i++) { |
510 |
+ |
const char *name; |
511 |
+ |
u_int64_t rbytes, wbytes; |
512 |
+ |
|
513 |
+ |
#ifdef NETBSD |
514 |
+ |
#ifdef HAVE_DK_RBYTES |
515 |
+ |
rbytes = stats[i].dk_rbytes; |
516 |
+ |
wbytes = stats[i].dk_wbytes; |
517 |
+ |
#else |
518 |
+ |
/* Before 2.0, NetBSD merged reads and writes. */ |
519 |
+ |
rbytes = wbytes = stats[i].dk_bytes; |
520 |
+ |
#endif |
521 |
+ |
#else |
522 |
+ |
#ifdef HAVE_DS_RBYTES |
523 |
+ |
rbytes = stats[i].ds_rbytes; |
524 |
+ |
wbytes = stats[i].ds_wbytes; |
525 |
+ |
#else |
526 |
+ |
/* Before 3.5, OpenBSD merged reads and writes */ |
527 |
+ |
rbytes = wbytes = stats[i].ds_bytes; |
528 |
+ |
#endif |
529 |
+ |
#endif |
530 |
+ |
|
531 |
+ |
/* Don't keep stats for disks that have never been used. */ |
532 |
+ |
if (rbytes == 0 && wbytes == 0) { |
533 |
+ |
continue; |
534 |
+ |
} |
535 |
+ |
|
536 |
+ |
if (VECTOR_RESIZE(diskio_stats, num_diskio + 1) < 0) { |
537 |
+ |
return NULL; |
538 |
+ |
} |
539 |
+ |
diskio_stats_ptr = diskio_stats + num_diskio; |
540 |
+ |
|
541 |
+ |
diskio_stats_ptr->read_bytes = rbytes; |
542 |
+ |
diskio_stats_ptr->write_bytes = wbytes; |
543 |
+ |
#ifdef NETBSD |
544 |
+ |
name = stats[i].dk_name; |
545 |
+ |
#else |
546 |
+ |
name = dk_name[i]; |
547 |
+ |
#endif |
548 |
+ |
if (sg_update_string(&diskio_stats_ptr->disk_name, name) < 0) { |
549 |
+ |
return NULL; |
550 |
+ |
} |
551 |
+ |
diskio_stats_ptr->systime = time(NULL); |
552 |
+ |
|
553 |
+ |
num_diskio++; |
554 |
+ |
} |
555 |
+ |
|
556 |
+ |
free(stats); |
557 |
+ |
#ifdef OPENBSD |
558 |
+ |
free(dk_name); |
559 |
+ |
free(disknames); |
560 |
+ |
#endif |
561 |
+ |
#endif |
562 |
+ |
|
563 |
+ |
#if defined(FREEBSD) || defined(DFBSD) |
564 |
+ |
if (!stats_init) { |
565 |
+ |
stats.dinfo=sg_malloc(sizeof(struct devinfo)); |
566 |
+ |
if(stats.dinfo==NULL) return NULL; |
567 |
+ |
bzero(stats.dinfo, sizeof(struct devinfo)); |
568 |
+ |
stats_init = 1; |
569 |
+ |
} |
570 |
+ |
#ifdef FREEBSD5 |
571 |
+ |
if ((devstat_getdevs(NULL, &stats)) < 0) { |
572 |
+ |
/* FIXME devstat functions return a string error in |
573 |
+ |
devstat_errbuf */ |
574 |
+ |
sg_set_error(SG_ERROR_DEVSTAT_GETDEVS, NULL); |
575 |
+ |
return NULL; |
576 |
+ |
} |
577 |
+ |
/* Not aware of a get all devices, so i said 999. If we ever |
578 |
+ |
* find a machine with more than 999 disks, then i'll change |
579 |
+ |
* this number :) |
580 |
+ |
*/ |
581 |
+ |
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) { |
582 |
+ |
sg_set_error(SG_ERROR_DEVSTAT_SELECTDEVS, NULL); |
583 |
+ |
return NULL; |
584 |
+ |
} |
585 |
+ |
#else |
586 |
+ |
if ((getdevs(&stats)) < 0) { |
587 |
+ |
sg_set_error(SG_ERROR_DEVSTAT_GETDEVS, NULL); |
588 |
+ |
return NULL; |
589 |
+ |
} |
590 |
+ |
/* Not aware of a get all devices, so i said 999. If we ever |
591 |
+ |
* find a machine with more than 999 disks, then i'll change |
592 |
+ |
* this number :) |
593 |
+ |
*/ |
594 |
+ |
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) { |
595 |
+ |
sg_set_error(SG_ERROR_DEVSTAT_SELECTDEVS, NULL); |
596 |
+ |
return NULL; |
597 |
+ |
} |
598 |
+ |
#endif |
599 |
+ |
|
600 |
+ |
for(counter=0;counter<stats.dinfo->numdevs;counter++){ |
601 |
+ |
dev_ptr=&stats.dinfo->devices[dev_sel[counter].position]; |
602 |
+ |
|
603 |
+ |
/* Throw away devices that have done nothing, ever.. Eg "odd" |
604 |
+ |
* devices.. like mem, proc.. and also doesn't report floppy |
605 |
+ |
* drives etc unless they are doing stuff :) |
606 |
+ |
*/ |
607 |
+ |
#ifdef FREEBSD5 |
608 |
+ |
if((dev_ptr->bytes[DEVSTAT_READ]==0) && (dev_ptr->bytes[DEVSTAT_WRITE]==0)) continue; |
609 |
+ |
#else |
610 |
+ |
if((dev_ptr->bytes_read==0) && (dev_ptr->bytes_written==0)) continue; |
611 |
+ |
#endif |
612 |
+ |
|
613 |
+ |
if (VECTOR_RESIZE(diskio_stats, num_diskio + 1) < 0) { |
614 |
+ |
return NULL; |
615 |
+ |
} |
616 |
+ |
diskio_stats_ptr=diskio_stats+num_diskio; |
617 |
+ |
|
618 |
+ |
#ifdef FREEBSD5 |
619 |
+ |
diskio_stats_ptr->read_bytes=dev_ptr->bytes[DEVSTAT_READ]; |
620 |
+ |
diskio_stats_ptr->write_bytes=dev_ptr->bytes[DEVSTAT_WRITE]; |
621 |
+ |
#else |
622 |
+ |
diskio_stats_ptr->read_bytes=dev_ptr->bytes_read; |
623 |
+ |
diskio_stats_ptr->write_bytes=dev_ptr->bytes_written; |
624 |
+ |
#endif |
625 |
+ |
if(diskio_stats_ptr->disk_name!=NULL) free(diskio_stats_ptr->disk_name); |
626 |
+ |
if (asprintf((&diskio_stats_ptr->disk_name), "%s%d", dev_ptr->device_name, dev_ptr->unit_number) == -1) { |
627 |
+ |
sg_set_error_with_errno(SG_ERROR_ASPRINTF, NULL); |
628 |
+ |
return NULL; |
629 |
+ |
} |
630 |
+ |
diskio_stats_ptr->systime=time(NULL); |
631 |
+ |
|
632 |
+ |
num_diskio++; |
633 |
+ |
} |
634 |
+ |
free(dev_sel); |
635 |
+ |
|
636 |
+ |
#endif |
637 |
+ |
#ifdef SOLARIS |
638 |
+ |
if ((kc = kstat_open()) == NULL) { |
639 |
+ |
sg_set_error(SG_ERROR_KSTAT_OPEN, NULL); |
640 |
+ |
return NULL; |
641 |
+ |
} |
642 |
+ |
|
643 |
|
for (ksp = kc->kc_chain; ksp; ksp = ksp->ks_next) { |
644 |
< |
if (!strcmp(ksp->ks_class, "disk")) { |
644 |
> |
if (!strcmp(ksp->ks_class, "disk")) { |
645 |
|
|
646 |
|
if(ksp->ks_type != KSTAT_TYPE_IO) continue; |
647 |
|
/* We dont want metadevices appearins as num_diskio */ |
648 |
|
if(strcmp(ksp->ks_module, "md")==0) continue; |
649 |
< |
if((kstat_read(kc, ksp, &kios))==-1){ |
649 |
> |
if((kstat_read(kc, ksp, &kios))==-1){ |
650 |
|
} |
651 |
|
|
652 |
< |
if((diskio_stats=diskio_stat_malloc(num_diskio+1, &sizeof_diskio_stats, diskio_stats))==NULL){ |
652 |
> |
if (VECTOR_RESIZE(diskio_stats, num_diskio + 1) < 0) { |
653 |
|
kstat_close(kc); |
654 |
|
return NULL; |
655 |
|
} |
656 |
|
diskio_stats_ptr=diskio_stats+num_diskio; |
657 |
|
|
658 |
|
diskio_stats_ptr->read_bytes=kios.nread; |
228 |
– |
|
659 |
|
diskio_stats_ptr->write_bytes=kios.nwritten; |
660 |
+ |
if (sg_update_string(&diskio_stats_ptr->disk_name, |
661 |
+ |
sg_get_svr_from_bsd(ksp->ks_name)) < 0) { |
662 |
+ |
return NULL; |
663 |
+ |
} |
664 |
+ |
diskio_stats_ptr->systime=time(NULL); |
665 |
|
|
231 |
– |
if(diskio_stats_ptr->disk_name!=NULL) free(diskio_stats_ptr->disk_name); |
232 |
– |
|
233 |
– |
diskio_stats_ptr->disk_name=strdup(ksp->ks_name); |
666 |
|
num_diskio++; |
667 |
|
} |
668 |
|
} |
669 |
|
|
670 |
|
kstat_close(kc); |
671 |
+ |
#endif |
672 |
|
|
673 |
+ |
#ifdef LINUX |
674 |
+ |
num_diskio = 0; |
675 |
+ |
n = 0; |
676 |
+ |
|
677 |
+ |
/* Read /proc/partitions to find what devices exist. Recent 2.4 kernels |
678 |
+ |
have statistics in here too, so we can use those directly. |
679 |
+ |
2.6 kernels have /proc/diskstats instead with almost (but not quite) |
680 |
+ |
the same format. */ |
681 |
+ |
|
682 |
+ |
f = fopen("/proc/diskstats", "r"); |
683 |
+ |
format = " %d %d %99s %*d %*d %lld %*d %*d %*d %lld"; |
684 |
+ |
if (f == NULL) { |
685 |
+ |
f = fopen("/proc/partitions", "r"); |
686 |
+ |
format = " %d %d %*d %99s %*d %*d %lld %*d %*d %*d %lld"; |
687 |
+ |
} |
688 |
+ |
if (f == NULL) goto out; |
689 |
+ |
now = time(NULL); |
690 |
+ |
|
691 |
+ |
while ((line_ptr = sg_f_read_line(f, "")) != NULL) { |
692 |
+ |
char name[100]; |
693 |
+ |
char *s; |
694 |
+ |
long long rsect, wsect; |
695 |
+ |
|
696 |
+ |
int nr = sscanf(line_ptr, format, |
697 |
+ |
&major, &minor, name, &rsect, &wsect); |
698 |
+ |
if (nr < 3) continue; |
699 |
+ |
|
700 |
+ |
/* Skip device names ending in numbers, since they're |
701 |
+ |
partitions. */ |
702 |
+ |
s = name; |
703 |
+ |
while (*s != '\0') s++; |
704 |
+ |
--s; |
705 |
+ |
if (*s >= '0' && *s <= '9') continue; |
706 |
+ |
|
707 |
+ |
if (nr < 5) { |
708 |
+ |
has_pp_stats = 0; |
709 |
+ |
rsect = 0; |
710 |
+ |
wsect = 0; |
711 |
+ |
} |
712 |
+ |
|
713 |
+ |
if (VECTOR_RESIZE(diskio_stats, n + 1) < 0) { |
714 |
+ |
goto out; |
715 |
+ |
} |
716 |
+ |
if (VECTOR_RESIZE(parts, n + 1) < 0) { |
717 |
+ |
goto out; |
718 |
+ |
} |
719 |
+ |
|
720 |
+ |
if (sg_update_string(&diskio_stats[n].disk_name, name) < 0) { |
721 |
+ |
goto out; |
722 |
+ |
} |
723 |
+ |
diskio_stats[n].read_bytes = rsect * 512; |
724 |
+ |
diskio_stats[n].write_bytes = wsect * 512; |
725 |
+ |
diskio_stats[n].systime = now; |
726 |
+ |
parts[n].major = major; |
727 |
+ |
parts[n].minor = minor; |
728 |
+ |
|
729 |
+ |
n++; |
730 |
+ |
} |
731 |
+ |
|
732 |
+ |
fclose(f); |
733 |
+ |
f = NULL; |
734 |
+ |
|
735 |
+ |
if (!has_pp_stats) { |
736 |
+ |
/* This is an older kernel where /proc/partitions doesn't |
737 |
+ |
contain stats. Read what we can from /proc/stat instead, and |
738 |
+ |
fill in the appropriate bits of the list allocated above. */ |
739 |
+ |
|
740 |
+ |
f = fopen("/proc/stat", "r"); |
741 |
+ |
if (f == NULL) goto out; |
742 |
+ |
now = time(NULL); |
743 |
+ |
|
744 |
+ |
line_ptr = sg_f_read_line(f, "disk_io:"); |
745 |
+ |
if (line_ptr == NULL) goto out; |
746 |
+ |
|
747 |
+ |
while((line_ptr=strchr(line_ptr, ' '))!=NULL){ |
748 |
+ |
long long rsect, wsect; |
749 |
+ |
|
750 |
+ |
if (*++line_ptr == '\0') break; |
751 |
+ |
|
752 |
+ |
if((sscanf(line_ptr, |
753 |
+ |
"(%d,%d):(%*d, %*d, %lld, %*d, %lld)", |
754 |
+ |
&major, &minor, &rsect, &wsect)) != 4) { |
755 |
+ |
continue; |
756 |
+ |
} |
757 |
+ |
|
758 |
+ |
/* Find the corresponding device from earlier. |
759 |
+ |
Just to add to the fun, "minor" is actually the disk |
760 |
+ |
number, not the device minor, so we need to figure |
761 |
+ |
out the real minor number based on the major! |
762 |
+ |
This list is not exhaustive; if you're running |
763 |
+ |
an older kernel you probably don't have fancy |
764 |
+ |
I2O hardware anyway... */ |
765 |
+ |
switch (major) { |
766 |
+ |
case 3: |
767 |
+ |
case 21: |
768 |
+ |
case 22: |
769 |
+ |
case 33: |
770 |
+ |
case 34: |
771 |
+ |
case 36: |
772 |
+ |
case 56: |
773 |
+ |
case 57: |
774 |
+ |
case 88: |
775 |
+ |
case 89: |
776 |
+ |
case 90: |
777 |
+ |
case 91: |
778 |
+ |
minor *= 64; |
779 |
+ |
break; |
780 |
+ |
case 9: |
781 |
+ |
case 43: |
782 |
+ |
break; |
783 |
+ |
default: |
784 |
+ |
minor *= 16; |
785 |
+ |
break; |
786 |
+ |
} |
787 |
+ |
for (i = 0; i < n; i++) { |
788 |
+ |
if (major == parts[i].major |
789 |
+ |
&& minor == parts[i].minor) |
790 |
+ |
break; |
791 |
+ |
} |
792 |
+ |
if (i == n) continue; |
793 |
+ |
|
794 |
+ |
/* We read the number of blocks. Blocks are stored in |
795 |
+ |
512 bytes */ |
796 |
+ |
diskio_stats[i].read_bytes = rsect * 512; |
797 |
+ |
diskio_stats[i].write_bytes = wsect * 512; |
798 |
+ |
diskio_stats[i].systime = now; |
799 |
+ |
} |
800 |
+ |
} |
801 |
+ |
|
802 |
+ |
num_diskio = n; |
803 |
+ |
out: |
804 |
+ |
if (f != NULL) fclose(f); |
805 |
+ |
#endif |
806 |
+ |
|
807 |
+ |
#ifdef CYGWIN |
808 |
+ |
sg_set_error(SG_ERROR_UNSUPPORTED, "Cygwin"); |
809 |
+ |
return NULL; |
810 |
+ |
#endif |
811 |
+ |
|
812 |
|
*entries=num_diskio; |
813 |
|
|
814 |
|
return diskio_stats; |
815 |
|
} |
816 |
|
|
817 |
< |
diskio_stat_t *get_diskio_stats_diff(int *entries){ |
818 |
< |
static diskio_stat_t *diskio_stats_diff=NULL; |
819 |
< |
static int sizeof_diskio_stats_diff=0; |
820 |
< |
diskio_stat_t *diskio_stats_diff_ptr, *diskio_stats_ptr; |
821 |
< |
int disks, x, y; |
817 |
> |
sg_disk_io_stats *sg_get_disk_io_stats_diff(int *entries){ |
818 |
> |
VECTOR_DECLARE_STATIC(diff, sg_disk_io_stats, 1, |
819 |
> |
diskio_stat_init, diskio_stat_destroy); |
820 |
> |
sg_disk_io_stats *src = NULL, *dest; |
821 |
> |
int i, j, diff_count, new_count; |
822 |
|
|
823 |
< |
if(diskio_stats==NULL){ |
824 |
< |
diskio_stats_ptr=get_diskio_stats(&disks); |
825 |
< |
*entries=disks; |
254 |
< |
return diskio_stats_ptr; |
823 |
> |
if (diskio_stats == NULL) { |
824 |
> |
/* No previous stats, so we can't calculate a difference. */ |
825 |
> |
return sg_get_disk_io_stats(entries); |
826 |
|
} |
827 |
|
|
828 |
< |
diskio_stats_diff=diskio_stat_malloc(num_diskio, &sizeof_diskio_stats_diff, diskio_stats_diff); |
829 |
< |
if(diskio_stats_diff==NULL){ |
828 |
> |
/* Resize the results array to match the previous stats. */ |
829 |
> |
diff_count = VECTOR_SIZE(diskio_stats); |
830 |
> |
if (VECTOR_RESIZE(diff, diff_count) < 0) { |
831 |
|
return NULL; |
832 |
|
} |
833 |
|
|
834 |
< |
diskio_stats_diff_ptr=diskio_stats_diff; |
835 |
< |
diskio_stats_ptr=diskio_stats; |
834 |
> |
/* Copy the previous stats into the result. */ |
835 |
> |
for (i = 0; i < diff_count; i++) { |
836 |
> |
src = &diskio_stats[i]; |
837 |
> |
dest = &diff[i]; |
838 |
|
|
839 |
< |
for(disks=0;disks<num_diskio;disks++){ |
840 |
< |
if(diskio_stats_diff_ptr->disk_name!=NULL){ |
267 |
< |
free(diskio_stats_diff_ptr->disk_name); |
839 |
> |
if (sg_update_string(&dest->disk_name, src->disk_name) < 0) { |
840 |
> |
return NULL; |
841 |
|
} |
842 |
< |
diskio_stats_diff_ptr->disk_name=strdup(diskio_stats_ptr->disk_name); |
843 |
< |
diskio_stats_diff_ptr->read_bytes=diskio_stats_ptr->read_bytes; |
844 |
< |
diskio_stats_diff_ptr->write_bytes=diskio_stats_ptr->write_bytes; |
845 |
< |
diskio_stats_diff_ptr->systime=diskio_stats_ptr->systime; |
842 |
> |
dest->read_bytes = src->read_bytes; |
843 |
> |
dest->write_bytes = src->write_bytes; |
844 |
> |
dest->systime = src->systime; |
845 |
> |
} |
846 |
|
|
847 |
< |
diskio_stats_diff_ptr++; |
848 |
< |
diskio_stats_ptr++; |
847 |
> |
/* Get a new set of stats. */ |
848 |
> |
if (sg_get_disk_io_stats(&new_count) == NULL) { |
849 |
> |
return NULL; |
850 |
|
} |
851 |
|
|
852 |
< |
diskio_stats_ptr=get_diskio_stats(&disks); |
853 |
< |
diskio_stats_diff_ptr=diskio_stats_diff; |
852 |
> |
/* For each previous stat... */ |
853 |
> |
for (i = 0; i < diff_count; i++) { |
854 |
> |
dest = &diff[i]; |
855 |
|
|
856 |
< |
for(x=0;x<sizeof_diskio_stats_diff;x++){ |
857 |
< |
|
858 |
< |
if((strcmp(diskio_stats_diff_ptr->disk_name, diskio_stats_ptr->disk_name))==0){ |
859 |
< |
diskio_stats_diff_ptr->read_bytes=diskio_stats_ptr->read_bytes-diskio_stats_diff_ptr->read_bytes; |
860 |
< |
diskio_stats_diff_ptr->write_bytes=diskio_stats_ptr->write_bytes-diskio_stats_diff_ptr->write_bytes; |
861 |
< |
diskio_stats_diff_ptr->systime=diskio_stats_ptr->systime-diskio_stats_diff_ptr->systime; |
862 |
< |
}else{ |
288 |
< |
diskio_stats_ptr=diskio_stats; |
289 |
< |
for(y=0;y<disks;y++){ |
290 |
< |
if((strcmp(diskio_stats_diff_ptr->disk_name, diskio_stats_ptr->disk_name))==0){ |
291 |
< |
diskio_stats_diff_ptr->read_bytes=diskio_stats_ptr->read_bytes-diskio_stats_diff_ptr->read_bytes; |
292 |
< |
diskio_stats_diff_ptr->write_bytes=diskio_stats_ptr->write_bytes-diskio_stats_diff_ptr->write_bytes; |
293 |
< |
diskio_stats_diff_ptr->systime=diskio_stats_ptr->systime-diskio_stats_diff_ptr->systime; |
294 |
< |
|
295 |
< |
break; |
296 |
< |
} |
297 |
< |
|
298 |
< |
diskio_stats_ptr++; |
856 |
> |
/* ... find the corresponding new stat ... */ |
857 |
> |
for (j = 0; j < new_count; j++) { |
858 |
> |
/* Try the new stat in the same position first, |
859 |
> |
since that's most likely to be it. */ |
860 |
> |
src = &diskio_stats[(i + j) % new_count]; |
861 |
> |
if (strcmp(src->disk_name, dest->disk_name) == 0) { |
862 |
> |
break; |
863 |
|
} |
864 |
|
} |
865 |
+ |
if (j == new_count) { |
866 |
+ |
/* No match found. */ |
867 |
+ |
continue; |
868 |
+ |
} |
869 |
|
|
870 |
< |
diskio_stats_ptr++; |
871 |
< |
diskio_stats_diff_ptr++; |
872 |
< |
|
870 |
> |
/* ... and subtract the previous stat from it to get the |
871 |
> |
difference. */ |
872 |
> |
dest->read_bytes = src->read_bytes - dest->read_bytes; |
873 |
> |
dest->write_bytes = src->write_bytes - dest->write_bytes; |
874 |
> |
dest->systime = src->systime - dest->systime; |
875 |
|
} |
876 |
|
|
877 |
< |
return diskio_stats_diff; |
877 |
> |
*entries = diff_count; |
878 |
> |
return diff; |
879 |
|
} |
880 |
+ |
|
881 |
+ |
int sg_disk_io_compare_name(const void *va, const void *vb) { |
882 |
+ |
const sg_disk_io_stats *a = (const sg_disk_io_stats *)va; |
883 |
+ |
const sg_disk_io_stats *b = (const sg_disk_io_stats *)vb; |
884 |
+ |
|
885 |
+ |
return strcmp(a->disk_name, b->disk_name); |
886 |
+ |
} |
887 |
+ |
|