1 |
tdb |
1.48 |
/* |
2 |
pajs |
1.1 |
* i-scream central monitoring system |
3 |
tdb |
1.18 |
* http://www.i-scream.org |
4 |
tdb |
1.48 |
* Copyright (C) 2000-2004 i-scream |
5 |
pajs |
1.1 |
* |
6 |
tdb |
1.48 |
* This library is free software; you can redistribute it and/or |
7 |
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* modify it under the terms of the GNU Lesser General Public |
8 |
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* License as published by the Free Software Foundation; either |
9 |
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* version 2.1 of the License, or (at your option) any later version. |
10 |
pajs |
1.1 |
* |
11 |
tdb |
1.48 |
* This library is distributed in the hope that it will be useful, |
12 |
pajs |
1.1 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 |
tdb |
1.48 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
14 |
|
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* Lesser General Public License for more details. |
15 |
pajs |
1.1 |
* |
16 |
tdb |
1.48 |
* You should have received a copy of the GNU Lesser General Public |
17 |
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* License along with this library; if not, write to the Free Software |
18 |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
19 |
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* 02111-1307 USA |
20 |
tdb |
1.49 |
* |
21 |
ats |
1.55 |
* $Id: disk_stats.c,v 1.54 2004/03/19 23:44:30 ats Exp $ |
22 |
pajs |
1.1 |
*/ |
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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28 |
pajs |
1.17 |
#include <stdio.h> |
29 |
pajs |
1.1 |
#include <stdlib.h> |
30 |
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#include <string.h> |
31 |
ats |
1.40 |
#include <time.h> |
32 |
tdb |
1.7 |
#include "statgrab.h" |
33 |
pajs |
1.1 |
|
34 |
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#ifdef SOLARIS |
35 |
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#include <sys/mnttab.h> |
36 |
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#include <sys/statvfs.h> |
37 |
pajs |
1.4 |
#include <kstat.h> |
38 |
pajs |
1.1 |
#define VALID_FS_TYPES {"ufs", "tmpfs"} |
39 |
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#endif |
40 |
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41 |
ats |
1.40 |
#if defined(LINUX) || defined(CYGWIN) |
42 |
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#include <mntent.h> |
43 |
pajs |
1.9 |
#include <sys/vfs.h> |
44 |
pajs |
1.10 |
#include "tools.h" |
45 |
ats |
1.40 |
#endif |
46 |
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|
47 |
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#ifdef LINUX |
48 |
ats |
1.32 |
#define VALID_FS_TYPES {"adfs", "affs", "befs", "bfs", "efs", "ext2", \ |
49 |
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"ext3", "vxfs", "hfs", "hfsplus", "hpfs", "jffs", \ |
50 |
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"jffs2", "minix", "msdos", "ntfs", "qnx4", "ramfs", \ |
51 |
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"rootfs", "reiserfs", "sysv", "v7", "udf", "ufs", \ |
52 |
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"umsdos", "vfat", "xfs", "jfs"} |
53 |
pajs |
1.9 |
#endif |
54 |
ats |
1.40 |
|
55 |
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#ifdef CYGWIN |
56 |
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#define VALID_FS_TYPES {"user"} |
57 |
tdb |
1.39 |
#endif |
58 |
pajs |
1.9 |
|
59 |
ats |
1.31 |
#ifdef ALLBSD |
60 |
pajs |
1.16 |
#include <sys/param.h> |
61 |
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#include <sys/ucred.h> |
62 |
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#include <sys/mount.h> |
63 |
ats |
1.31 |
#endif |
64 |
tdb |
1.53 |
#if defined(FREEBSD) || defined(DFBSD) |
65 |
pajs |
1.17 |
#include <sys/dkstat.h> |
66 |
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#include <devstat.h> |
67 |
ats |
1.36 |
#define VALID_FS_TYPES {"hpfs", "msdosfs", "ntfs", "udf", "ext2fs", \ |
68 |
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"ufs", "mfs"} |
69 |
pajs |
1.16 |
#endif |
70 |
tdb |
1.51 |
#if defined(NETBSD) || defined(OPENBSD) |
71 |
ats |
1.34 |
#include <sys/param.h> |
72 |
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#include <sys/sysctl.h> |
73 |
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#include <sys/disk.h> |
74 |
ats |
1.35 |
#define VALID_FS_TYPES {"ffs", "mfs", "msdos", "lfs", "adosfs", "ext2fs", \ |
75 |
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"ntfs"} |
76 |
ats |
1.34 |
#endif |
77 |
ats |
1.31 |
|
78 |
pajs |
1.1 |
#define START_VAL 1 |
79 |
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80 |
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char *copy_string(char *orig_ptr, const char *newtext){ |
81 |
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82 |
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/* Maybe free if not NULL, and strdup rather than realloc and strcpy? */ |
83 |
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orig_ptr=realloc(orig_ptr, (1+strlen(newtext))); |
84 |
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if(orig_ptr==NULL){ |
85 |
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return NULL; |
86 |
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} |
87 |
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strcpy(orig_ptr, newtext); |
88 |
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89 |
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return orig_ptr; |
90 |
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} |
91 |
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92 |
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93 |
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void init_disk_stat(int start, int end, disk_stat_t *disk_stats){ |
94 |
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95 |
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for(disk_stats+=start; start<=end; start++){ |
96 |
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disk_stats->device_name=NULL; |
97 |
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disk_stats->fs_type=NULL; |
98 |
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disk_stats->mnt_point=NULL; |
99 |
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100 |
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disk_stats++; |
101 |
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} |
102 |
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} |
103 |
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104 |
ats |
1.41 |
int is_valid_fs_type(const char *type) { |
105 |
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const char *types[] = VALID_FS_TYPES; |
106 |
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int i; |
107 |
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108 |
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for (i = 0; i < (sizeof types / sizeof *types); i++) { |
109 |
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if (strcmp(types[i], type) == 0) { |
110 |
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return 1; |
111 |
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} |
112 |
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} |
113 |
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return 0; |
114 |
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} |
115 |
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116 |
pajs |
1.1 |
disk_stat_t *get_disk_stats(int *entries){ |
117 |
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118 |
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static disk_stat_t *disk_stats; |
119 |
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static int watermark=-1; |
120 |
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121 |
ats |
1.41 |
int valid_type; |
122 |
pajs |
1.1 |
int num_disks=0; |
123 |
ats |
1.40 |
#if defined(LINUX) || defined (SOLARIS) || defined(CYGWIN) |
124 |
pajs |
1.1 |
FILE *f; |
125 |
pajs |
1.16 |
#endif |
126 |
pajs |
1.1 |
|
127 |
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disk_stat_t *disk_ptr; |
128 |
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|
129 |
pajs |
1.9 |
#ifdef SOLARIS |
130 |
tdb |
1.13 |
struct mnttab mp; |
131 |
pajs |
1.9 |
struct statvfs fs; |
132 |
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#endif |
133 |
ats |
1.40 |
#if defined(LINUX) || defined(CYGWIN) |
134 |
pajs |
1.9 |
struct mntent *mp; |
135 |
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struct statfs fs; |
136 |
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#endif |
137 |
ats |
1.31 |
#ifdef ALLBSD |
138 |
pajs |
1.16 |
int nummnt; |
139 |
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struct statfs *mp; |
140 |
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#endif |
141 |
pajs |
1.9 |
|
142 |
pajs |
1.1 |
if(watermark==-1){ |
143 |
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disk_stats=malloc(START_VAL * sizeof(disk_stat_t)); |
144 |
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if(disk_stats==NULL){ |
145 |
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return NULL; |
146 |
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} |
147 |
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watermark=START_VAL; |
148 |
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init_disk_stat(0, watermark-1, disk_stats); |
149 |
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} |
150 |
ats |
1.31 |
#ifdef ALLBSD |
151 |
pajs |
1.16 |
nummnt=getmntinfo(&mp , MNT_LOCAL); |
152 |
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if (nummnt<=0){ |
153 |
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return NULL; |
154 |
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} |
155 |
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for(;nummnt--; mp++){ |
156 |
ats |
1.41 |
valid_type = is_valid_fs_type(mp->f_fstypename); |
157 |
pajs |
1.16 |
#endif |
158 |
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|
159 |
ats |
1.40 |
#if defined(LINUX) || defined(CYGWIN) |
160 |
pajs |
1.9 |
if ((f=setmntent("/etc/mtab", "r" ))==NULL){ |
161 |
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return NULL; |
162 |
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} |
163 |
pajs |
1.1 |
|
164 |
pajs |
1.9 |
while((mp=getmntent(f))){ |
165 |
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if((statfs(mp->mnt_dir, &fs)) !=0){ |
166 |
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continue; |
167 |
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} |
168 |
pajs |
1.1 |
|
169 |
ats |
1.41 |
valid_type = is_valid_fs_type(mp->mnt_type); |
170 |
pajs |
1.9 |
#endif |
171 |
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172 |
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#ifdef SOLARIS |
173 |
pajs |
1.1 |
if ((f=fopen("/etc/mnttab", "r" ))==NULL){ |
174 |
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return NULL; |
175 |
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} |
176 |
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while((getmntent(f, &mp)) == 0){ |
177 |
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if ((statvfs(mp.mnt_mountp, &fs)) !=0){ |
178 |
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continue; |
179 |
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} |
180 |
ats |
1.41 |
valid_type = is_valid_fs_type(mp.mnt_fstype); |
181 |
pajs |
1.9 |
#endif |
182 |
pajs |
1.1 |
|
183 |
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if(valid_type){ |
184 |
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if(num_disks>watermark-1){ |
185 |
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disk_ptr=disk_stats; |
186 |
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if((disk_stats=realloc(disk_stats, (watermark*2 * sizeof(disk_stat_t))))==NULL){ |
187 |
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disk_stats=disk_ptr; |
188 |
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return NULL; |
189 |
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} |
190 |
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191 |
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watermark=watermark*2; |
192 |
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init_disk_stat(num_disks, watermark-1, disk_stats); |
193 |
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} |
194 |
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195 |
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disk_ptr=disk_stats+num_disks; |
196 |
ats |
1.31 |
#ifdef ALLBSD |
197 |
pajs |
1.16 |
if((disk_ptr->device_name=copy_string(disk_ptr->device_name, mp->f_mntfromname))==NULL){ |
198 |
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return NULL; |
199 |
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} |
200 |
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201 |
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if((disk_ptr->fs_type=copy_string(disk_ptr->fs_type, mp->f_fstypename))==NULL){ |
202 |
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return NULL; |
203 |
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} |
204 |
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205 |
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if((disk_ptr->mnt_point=copy_string(disk_ptr->mnt_point, mp->f_mntonname))==NULL){ |
206 |
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return NULL; |
207 |
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} |
208 |
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209 |
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disk_ptr->size = (long long)mp->f_bsize * (long long) mp->f_blocks; |
210 |
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disk_ptr->avail = (long long)mp->f_bsize * (long long) mp->f_bavail; |
211 |
|
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disk_ptr->used = (disk_ptr->size) - ((long long)mp->f_bsize * (long long)mp->f_bfree); |
212 |
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213 |
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disk_ptr->total_inodes=(long long)mp->f_files; |
214 |
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disk_ptr->free_inodes=(long long)mp->f_ffree; |
215 |
|
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/* Freebsd doesn't have a "available" inodes */ |
216 |
|
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disk_ptr->used_inodes=disk_ptr->total_inodes-disk_ptr->free_inodes; |
217 |
|
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#endif |
218 |
ats |
1.40 |
#if defined(LINUX) || defined(CYGWIN) |
219 |
pajs |
1.9 |
if((disk_ptr->device_name=copy_string(disk_ptr->device_name, mp->mnt_fsname))==NULL){ |
220 |
|
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return NULL; |
221 |
|
|
} |
222 |
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|
|
223 |
|
|
if((disk_ptr->fs_type=copy_string(disk_ptr->fs_type, mp->mnt_type))==NULL){ |
224 |
|
|
return NULL; |
225 |
|
|
} |
226 |
|
|
|
227 |
|
|
if((disk_ptr->mnt_point=copy_string(disk_ptr->mnt_point, mp->mnt_dir))==NULL){ |
228 |
|
|
return NULL; |
229 |
|
|
} |
230 |
|
|
disk_ptr->size = (long long)fs.f_bsize * (long long)fs.f_blocks; |
231 |
|
|
disk_ptr->avail = (long long)fs.f_bsize * (long long)fs.f_bavail; |
232 |
|
|
disk_ptr->used = (disk_ptr->size) - ((long long)fs.f_bsize * (long long)fs.f_bfree); |
233 |
|
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|
234 |
|
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disk_ptr->total_inodes=(long long)fs.f_files; |
235 |
|
|
disk_ptr->free_inodes=(long long)fs.f_ffree; |
236 |
|
|
/* Linux doesn't have a "available" inodes */ |
237 |
|
|
disk_ptr->used_inodes=disk_ptr->total_inodes-disk_ptr->free_inodes; |
238 |
|
|
#endif |
239 |
|
|
|
240 |
|
|
#ifdef SOLARIS |
241 |
pajs |
1.1 |
/* Memory leak in event of realloc failing */ |
242 |
|
|
/* Maybe make this char[bigenough] and do strncpy's and put a null in the end? |
243 |
pajs |
1.9 |
* Downside is its a bit hungry for a lot of mounts, as MNT_MAX_SIZE would prob |
244 |
|
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* be upwards of a k each |
245 |
|
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*/ |
246 |
pajs |
1.1 |
if((disk_ptr->device_name=copy_string(disk_ptr->device_name, mp.mnt_special))==NULL){ |
247 |
|
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return NULL; |
248 |
|
|
} |
249 |
|
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|
250 |
|
|
if((disk_ptr->fs_type=copy_string(disk_ptr->fs_type, mp.mnt_fstype))==NULL){ |
251 |
|
|
return NULL; |
252 |
|
|
} |
253 |
|
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|
254 |
|
|
if((disk_ptr->mnt_point=copy_string(disk_ptr->mnt_point, mp.mnt_mountp))==NULL){ |
255 |
|
|
return NULL; |
256 |
|
|
} |
257 |
|
|
|
258 |
|
|
disk_ptr->size = (long long)fs.f_frsize * (long long)fs.f_blocks; |
259 |
|
|
disk_ptr->avail = (long long)fs.f_frsize * (long long)fs.f_bavail; |
260 |
|
|
disk_ptr->used = (disk_ptr->size) - ((long long)fs.f_frsize * (long long)fs.f_bfree); |
261 |
|
|
|
262 |
|
|
disk_ptr->total_inodes=(long long)fs.f_files; |
263 |
|
|
disk_ptr->used_inodes=disk_ptr->total_inodes - (long long)fs.f_ffree; |
264 |
|
|
disk_ptr->free_inodes=(long long)fs.f_favail; |
265 |
pajs |
1.9 |
#endif |
266 |
pajs |
1.1 |
num_disks++; |
267 |
|
|
} |
268 |
|
|
} |
269 |
|
|
|
270 |
|
|
*entries=num_disks; |
271 |
|
|
|
272 |
tdb |
1.39 |
/* If this fails, there is very little i can do about it, so |
273 |
|
|
I'll ignore it :) */ |
274 |
ats |
1.40 |
#if defined(LINUX) || defined(CYGWIN) |
275 |
tdb |
1.39 |
endmntent(f); |
276 |
|
|
#endif |
277 |
|
|
#if defined(SOLARIS) |
278 |
pajs |
1.1 |
fclose(f); |
279 |
pajs |
1.16 |
#endif |
280 |
pajs |
1.1 |
|
281 |
|
|
return disk_stats; |
282 |
|
|
|
283 |
|
|
} |
284 |
pajs |
1.4 |
void diskio_stat_init(int start, int end, diskio_stat_t *diskio_stats){ |
285 |
|
|
|
286 |
|
|
for(diskio_stats+=start; start<end; start++){ |
287 |
|
|
diskio_stats->disk_name=NULL; |
288 |
|
|
|
289 |
|
|
diskio_stats++; |
290 |
|
|
} |
291 |
|
|
} |
292 |
|
|
|
293 |
|
|
diskio_stat_t *diskio_stat_malloc(int needed_entries, int *cur_entries, diskio_stat_t *diskio_stats){ |
294 |
|
|
|
295 |
|
|
if(diskio_stats==NULL){ |
296 |
|
|
|
297 |
|
|
if((diskio_stats=malloc(needed_entries * sizeof(diskio_stat_t)))==NULL){ |
298 |
|
|
return NULL; |
299 |
|
|
} |
300 |
|
|
diskio_stat_init(0, needed_entries, diskio_stats); |
301 |
|
|
*cur_entries=needed_entries; |
302 |
|
|
|
303 |
|
|
return diskio_stats; |
304 |
|
|
} |
305 |
|
|
|
306 |
|
|
|
307 |
|
|
if(*cur_entries<needed_entries){ |
308 |
|
|
diskio_stats=realloc(diskio_stats, (sizeof(diskio_stat_t)*needed_entries)); |
309 |
|
|
if(diskio_stats==NULL){ |
310 |
|
|
return NULL; |
311 |
|
|
} |
312 |
|
|
diskio_stat_init(*cur_entries, needed_entries, diskio_stats); |
313 |
|
|
*cur_entries=needed_entries; |
314 |
|
|
} |
315 |
|
|
|
316 |
|
|
return diskio_stats; |
317 |
|
|
} |
318 |
|
|
|
319 |
|
|
static diskio_stat_t *diskio_stats=NULL; |
320 |
pajs |
1.5 |
static int num_diskio=0; |
321 |
pajs |
1.4 |
|
322 |
ats |
1.20 |
#ifdef LINUX |
323 |
|
|
typedef struct { |
324 |
|
|
int major; |
325 |
|
|
int minor; |
326 |
|
|
} partition; |
327 |
|
|
#endif |
328 |
|
|
|
329 |
tdb |
1.3 |
diskio_stat_t *get_diskio_stats(int *entries){ |
330 |
pajs |
1.2 |
|
331 |
pajs |
1.4 |
static int sizeof_diskio_stats=0; |
332 |
ats |
1.38 |
#ifndef LINUX |
333 |
pajs |
1.4 |
diskio_stat_t *diskio_stats_ptr; |
334 |
ats |
1.38 |
#endif |
335 |
pajs |
1.4 |
|
336 |
pajs |
1.10 |
#ifdef SOLARIS |
337 |
pajs |
1.4 |
kstat_ctl_t *kc; |
338 |
|
|
kstat_t *ksp; |
339 |
|
|
kstat_io_t kios; |
340 |
pajs |
1.10 |
#endif |
341 |
|
|
#ifdef LINUX |
342 |
|
|
FILE *f; |
343 |
|
|
char *line_ptr; |
344 |
|
|
int major, minor; |
345 |
ats |
1.20 |
int has_pp_stats = 1; |
346 |
|
|
static partition *parts = NULL; |
347 |
|
|
static int alloc_parts = 0; |
348 |
|
|
int i, n; |
349 |
|
|
time_t now; |
350 |
ats |
1.38 |
const char *format; |
351 |
pajs |
1.10 |
#endif |
352 |
tdb |
1.53 |
#if defined(FREEBSD) || defined(DFBSD) |
353 |
ats |
1.21 |
static struct statinfo stats; |
354 |
|
|
static int stats_init = 0; |
355 |
pajs |
1.17 |
int counter; |
356 |
|
|
struct device_selection *dev_sel = NULL; |
357 |
|
|
int n_selected, n_selections; |
358 |
|
|
long sel_gen; |
359 |
|
|
struct devstat *dev_ptr; |
360 |
ats |
1.31 |
#endif |
361 |
|
|
#ifdef NETBSD |
362 |
ats |
1.34 |
struct disk_sysctl *stats; |
363 |
tdb |
1.51 |
#endif |
364 |
|
|
#ifdef OPENBSD |
365 |
tdb |
1.52 |
int diskcount; |
366 |
|
|
char *disknames, *name, *bufpp; |
367 |
|
|
char **dk_name; |
368 |
tdb |
1.51 |
struct diskstats *stats; |
369 |
|
|
#endif |
370 |
|
|
#ifdef NETBSD |
371 |
|
|
#define MIBSIZE 3 |
372 |
|
|
#endif |
373 |
|
|
#ifdef OPENBSD |
374 |
|
|
#define MIBSIZE 2 |
375 |
|
|
#endif |
376 |
|
|
#if defined(NETBSD) || defined(OPENBSD) |
377 |
ats |
1.34 |
int num_disks, i; |
378 |
tdb |
1.51 |
int mib[MIBSIZE]; |
379 |
ats |
1.34 |
size_t size; |
380 |
pajs |
1.17 |
#endif |
381 |
ats |
1.34 |
|
382 |
pajs |
1.10 |
num_diskio=0; |
383 |
ats |
1.34 |
|
384 |
tdb |
1.52 |
#ifdef OPENBSD |
385 |
|
|
mib[0] = CTL_HW; |
386 |
|
|
mib[1] = HW_DISKCOUNT; |
387 |
|
|
|
388 |
|
|
size = sizeof(diskcount); |
389 |
|
|
if (sysctl(mib, MIBSIZE, &diskcount, &size, NULL, 0) < 0) { |
390 |
|
|
return NULL; |
391 |
|
|
} |
392 |
|
|
|
393 |
|
|
mib[0] = CTL_HW; |
394 |
|
|
mib[1] = HW_DISKNAMES; |
395 |
|
|
|
396 |
|
|
if (sysctl(mib, MIBSIZE, NULL, &size, NULL, 0) < 0) { |
397 |
|
|
return NULL; |
398 |
|
|
} |
399 |
|
|
|
400 |
|
|
disknames = malloc(size); |
401 |
|
|
if (disknames == NULL) { |
402 |
|
|
return NULL; |
403 |
|
|
} |
404 |
|
|
|
405 |
|
|
if (sysctl(mib, MIBSIZE, disknames, &size, NULL, 0) < 0) { |
406 |
|
|
return NULL; |
407 |
|
|
} |
408 |
|
|
|
409 |
|
|
dk_name = calloc(diskcount, sizeof(char *)); |
410 |
|
|
bufpp = disknames; |
411 |
|
|
for (i = 0; i < diskcount && (name = strsep(&bufpp, ",")) != NULL; i++) { |
412 |
|
|
dk_name[i] = name; |
413 |
|
|
} |
414 |
|
|
#endif |
415 |
|
|
|
416 |
tdb |
1.51 |
#if defined(NETBSD) || defined(OPENBSD) |
417 |
ats |
1.34 |
mib[0] = CTL_HW; |
418 |
|
|
mib[1] = HW_DISKSTATS; |
419 |
tdb |
1.51 |
#ifdef NETBSD |
420 |
ats |
1.34 |
mib[2] = sizeof(struct disk_sysctl); |
421 |
tdb |
1.51 |
#endif |
422 |
ats |
1.34 |
|
423 |
tdb |
1.51 |
if (sysctl(mib, MIBSIZE, NULL, &size, NULL, 0) < 0) { |
424 |
ats |
1.34 |
return NULL; |
425 |
|
|
} |
426 |
tdb |
1.51 |
|
427 |
|
|
#ifdef NETBSD |
428 |
ats |
1.34 |
num_disks = size / sizeof(struct disk_sysctl); |
429 |
tdb |
1.51 |
#else |
430 |
|
|
num_disks = size / sizeof(struct diskstats); |
431 |
|
|
#endif |
432 |
ats |
1.34 |
|
433 |
|
|
stats = malloc(size); |
434 |
|
|
if (stats == NULL) { |
435 |
|
|
return NULL; |
436 |
|
|
} |
437 |
|
|
|
438 |
tdb |
1.51 |
if (sysctl(mib, MIBSIZE, stats, &size, NULL, 0) < 0) { |
439 |
ats |
1.34 |
return NULL; |
440 |
|
|
} |
441 |
|
|
|
442 |
|
|
for (i = 0; i < num_disks; i++) { |
443 |
|
|
u_int64_t rbytes, wbytes; |
444 |
|
|
|
445 |
tdb |
1.51 |
#ifdef NETBSD |
446 |
ats |
1.34 |
#ifdef HAVE_DK_RBYTES |
447 |
|
|
rbytes = stats[i].dk_rbytes; |
448 |
|
|
wbytes = stats[i].dk_wbytes; |
449 |
|
|
#else |
450 |
ats |
1.37 |
/* Before 1.7, NetBSD merged reads and writes. */ |
451 |
ats |
1.34 |
rbytes = wbytes = stats[i].dk_bytes; |
452 |
|
|
#endif |
453 |
tdb |
1.51 |
#else |
454 |
|
|
rbytes = wbytes = stats[i].ds_bytes; |
455 |
|
|
#endif |
456 |
ats |
1.34 |
|
457 |
|
|
/* Don't keep stats for disks that have never been used. */ |
458 |
|
|
if (rbytes == 0 && wbytes == 0) { |
459 |
|
|
continue; |
460 |
|
|
} |
461 |
|
|
|
462 |
|
|
diskio_stats = diskio_stat_malloc(num_diskio + 1, |
463 |
|
|
&sizeof_diskio_stats, |
464 |
|
|
diskio_stats); |
465 |
|
|
if (diskio_stats == NULL) { |
466 |
|
|
return NULL; |
467 |
|
|
} |
468 |
|
|
diskio_stats_ptr = diskio_stats + num_diskio; |
469 |
|
|
|
470 |
|
|
diskio_stats_ptr->read_bytes = rbytes; |
471 |
|
|
diskio_stats_ptr->write_bytes = wbytes; |
472 |
|
|
if (diskio_stats_ptr->disk_name != NULL) { |
473 |
|
|
free(diskio_stats_ptr->disk_name); |
474 |
|
|
} |
475 |
tdb |
1.51 |
#ifdef NETBSD |
476 |
ats |
1.34 |
diskio_stats_ptr->disk_name = strdup(stats[i].dk_name); |
477 |
tdb |
1.51 |
#else |
478 |
tdb |
1.52 |
diskio_stats_ptr->disk_name = strdup(dk_name[i]); |
479 |
tdb |
1.51 |
#endif |
480 |
ats |
1.34 |
diskio_stats_ptr->systime = time(NULL); |
481 |
|
|
|
482 |
|
|
num_diskio++; |
483 |
|
|
} |
484 |
|
|
|
485 |
|
|
free(stats); |
486 |
tdb |
1.52 |
#ifdef OPENBSD |
487 |
|
|
free(dk_name); |
488 |
|
|
free(disknames); |
489 |
|
|
#endif |
490 |
ats |
1.34 |
#endif |
491 |
pajs |
1.4 |
|
492 |
tdb |
1.53 |
#if defined(FREEBSD) || defined(DFBSD) |
493 |
ats |
1.21 |
if (!stats_init) { |
494 |
|
|
stats.dinfo=malloc(sizeof(struct devinfo)); |
495 |
ats |
1.33 |
if(stats.dinfo==NULL) return NULL; |
496 |
tdb |
1.25 |
bzero(stats.dinfo, sizeof(struct devinfo)); |
497 |
ats |
1.21 |
stats_init = 1; |
498 |
|
|
} |
499 |
pajs |
1.28 |
#ifdef FREEBSD5 |
500 |
|
|
if ((devstat_getdevs(NULL, &stats)) < 0) return NULL; |
501 |
ats |
1.29 |
/* Not aware of a get all devices, so i said 999. If we ever |
502 |
|
|
* find a machine with more than 999 disks, then i'll change |
503 |
|
|
* this number :) |
504 |
|
|
*/ |
505 |
pajs |
1.28 |
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; |
506 |
|
|
#else |
507 |
pajs |
1.17 |
if ((getdevs(&stats)) < 0) return NULL; |
508 |
|
|
/* Not aware of a get all devices, so i said 999. If we ever |
509 |
|
|
* find a machine with more than 999 disks, then i'll change |
510 |
|
|
* this number :) |
511 |
|
|
*/ |
512 |
|
|
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; |
513 |
pajs |
1.27 |
#endif |
514 |
pajs |
1.17 |
|
515 |
|
|
for(counter=0;counter<stats.dinfo->numdevs;counter++){ |
516 |
|
|
dev_ptr=&stats.dinfo->devices[dev_sel[counter].position]; |
517 |
|
|
|
518 |
|
|
/* Throw away devices that have done nothing, ever.. Eg "odd" |
519 |
|
|
* devices.. like mem, proc.. and also doesn't report floppy |
520 |
|
|
* drives etc unless they are doing stuff :) |
521 |
|
|
*/ |
522 |
pajs |
1.27 |
#ifdef FREEBSD5 |
523 |
|
|
if((dev_ptr->bytes[DEVSTAT_READ]==0) && (dev_ptr->bytes[DEVSTAT_WRITE]==0)) continue; |
524 |
|
|
#else |
525 |
pajs |
1.17 |
if((dev_ptr->bytes_read==0) && (dev_ptr->bytes_written==0)) continue; |
526 |
pajs |
1.27 |
#endif |
527 |
pajs |
1.17 |
if((diskio_stats=diskio_stat_malloc(num_diskio+1, &sizeof_diskio_stats, diskio_stats))==NULL){ |
528 |
|
|
return NULL; |
529 |
|
|
} |
530 |
|
|
diskio_stats_ptr=diskio_stats+num_diskio; |
531 |
pajs |
1.27 |
|
532 |
|
|
#ifdef FREEBSD5 |
533 |
|
|
diskio_stats_ptr->read_bytes=dev_ptr->bytes[DEVSTAT_READ]; |
534 |
|
|
diskio_stats_ptr->write_bytes=dev_ptr->bytes[DEVSTAT_WRITE]; |
535 |
|
|
#else |
536 |
pajs |
1.17 |
diskio_stats_ptr->read_bytes=dev_ptr->bytes_read; |
537 |
|
|
diskio_stats_ptr->write_bytes=dev_ptr->bytes_written; |
538 |
pajs |
1.27 |
#endif |
539 |
pajs |
1.17 |
if(diskio_stats_ptr->disk_name!=NULL) free(diskio_stats_ptr->disk_name); |
540 |
|
|
asprintf((&diskio_stats_ptr->disk_name), "%s%d", dev_ptr->device_name, dev_ptr->unit_number); |
541 |
|
|
diskio_stats_ptr->systime=time(NULL); |
542 |
|
|
|
543 |
|
|
num_diskio++; |
544 |
|
|
} |
545 |
|
|
free(dev_sel); |
546 |
|
|
|
547 |
|
|
#endif |
548 |
pajs |
1.10 |
#ifdef SOLARIS |
549 |
pajs |
1.4 |
if ((kc = kstat_open()) == NULL) { |
550 |
|
|
return NULL; |
551 |
|
|
} |
552 |
|
|
|
553 |
|
|
for (ksp = kc->kc_chain; ksp; ksp = ksp->ks_next) { |
554 |
|
|
if (!strcmp(ksp->ks_class, "disk")) { |
555 |
|
|
|
556 |
|
|
if(ksp->ks_type != KSTAT_TYPE_IO) continue; |
557 |
pajs |
1.5 |
/* We dont want metadevices appearins as num_diskio */ |
558 |
pajs |
1.4 |
if(strcmp(ksp->ks_module, "md")==0) continue; |
559 |
|
|
if((kstat_read(kc, ksp, &kios))==-1){ |
560 |
|
|
} |
561 |
|
|
|
562 |
pajs |
1.5 |
if((diskio_stats=diskio_stat_malloc(num_diskio+1, &sizeof_diskio_stats, diskio_stats))==NULL){ |
563 |
pajs |
1.4 |
kstat_close(kc); |
564 |
|
|
return NULL; |
565 |
|
|
} |
566 |
pajs |
1.5 |
diskio_stats_ptr=diskio_stats+num_diskio; |
567 |
pajs |
1.4 |
|
568 |
|
|
diskio_stats_ptr->read_bytes=kios.nread; |
569 |
|
|
|
570 |
|
|
diskio_stats_ptr->write_bytes=kios.nwritten; |
571 |
|
|
|
572 |
|
|
if(diskio_stats_ptr->disk_name!=NULL) free(diskio_stats_ptr->disk_name); |
573 |
|
|
|
574 |
tdb |
1.43 |
diskio_stats_ptr->disk_name=strdup((char *) get_svr_from_bsd(ksp->ks_name)); |
575 |
pajs |
1.14 |
diskio_stats_ptr->systime=time(NULL); |
576 |
pajs |
1.5 |
num_diskio++; |
577 |
pajs |
1.4 |
} |
578 |
|
|
} |
579 |
|
|
|
580 |
|
|
kstat_close(kc); |
581 |
pajs |
1.10 |
#endif |
582 |
pajs |
1.4 |
|
583 |
pajs |
1.10 |
#ifdef LINUX |
584 |
ats |
1.20 |
num_diskio = 0; |
585 |
|
|
n = 0; |
586 |
pajs |
1.10 |
|
587 |
ats |
1.20 |
/* Read /proc/partitions to find what devices exist. Recent 2.4 kernels |
588 |
ats |
1.38 |
have statistics in here too, so we can use those directly. |
589 |
|
|
2.6 kernels have /proc/diskstats instead with almost (but not quite) |
590 |
|
|
the same format. */ |
591 |
|
|
|
592 |
|
|
f = fopen("/proc/diskstats", "r"); |
593 |
ats |
1.54 |
format = " %d %d %99s %*d %*d %lld %*d %*d %*d %lld"; |
594 |
ats |
1.38 |
if (f == NULL) { |
595 |
|
|
f = fopen("/proc/partitions", "r"); |
596 |
ats |
1.54 |
format = " %d %d %*d %99s %*d %*d %lld %*d %*d %*d %lld"; |
597 |
ats |
1.38 |
} |
598 |
ats |
1.20 |
if (f == NULL) goto out; |
599 |
|
|
now = time(NULL); |
600 |
|
|
|
601 |
|
|
while ((line_ptr = f_read_line(f, "")) != NULL) { |
602 |
ats |
1.54 |
char name[100]; |
603 |
ats |
1.20 |
char *s; |
604 |
|
|
long long rsect, wsect; |
605 |
|
|
|
606 |
ats |
1.38 |
int nr = sscanf(line_ptr, format, |
607 |
ats |
1.20 |
&major, &minor, name, &rsect, &wsect); |
608 |
|
|
if (nr < 3) continue; |
609 |
|
|
|
610 |
|
|
/* Skip device names ending in numbers, since they're |
611 |
|
|
partitions. */ |
612 |
|
|
s = name; |
613 |
|
|
while (*s != '\0') s++; |
614 |
|
|
--s; |
615 |
|
|
if (*s >= '0' && *s <= '9') continue; |
616 |
ats |
1.38 |
|
617 |
|
|
if (nr < 5) { |
618 |
|
|
has_pp_stats = 0; |
619 |
|
|
rsect = 0; |
620 |
|
|
wsect = 0; |
621 |
|
|
} |
622 |
ats |
1.20 |
|
623 |
|
|
diskio_stats = diskio_stat_malloc(n + 1, &sizeof_diskio_stats, |
624 |
|
|
diskio_stats); |
625 |
|
|
if (diskio_stats == NULL) goto out; |
626 |
|
|
if (n >= alloc_parts) { |
627 |
|
|
alloc_parts += 16; |
628 |
|
|
parts = realloc(parts, alloc_parts * sizeof *parts); |
629 |
|
|
if (parts == NULL) { |
630 |
|
|
alloc_parts = 0; |
631 |
|
|
goto out; |
632 |
|
|
} |
633 |
pajs |
1.11 |
} |
634 |
pajs |
1.12 |
|
635 |
ats |
1.20 |
if (diskio_stats[n].disk_name != NULL) |
636 |
|
|
free(diskio_stats[n].disk_name); |
637 |
|
|
diskio_stats[n].disk_name = strdup(name); |
638 |
|
|
diskio_stats[n].read_bytes = rsect * 512; |
639 |
|
|
diskio_stats[n].write_bytes = wsect * 512; |
640 |
|
|
diskio_stats[n].systime = now; |
641 |
|
|
parts[n].major = major; |
642 |
|
|
parts[n].minor = minor; |
643 |
pajs |
1.10 |
|
644 |
ats |
1.20 |
n++; |
645 |
|
|
} |
646 |
pajs |
1.10 |
|
647 |
ats |
1.45 |
fclose(f); |
648 |
ats |
1.46 |
f = NULL; |
649 |
pajs |
1.44 |
|
650 |
ats |
1.20 |
if (!has_pp_stats) { |
651 |
ats |
1.45 |
/* This is an older kernel where /proc/partitions doesn't |
652 |
|
|
contain stats. Read what we can from /proc/stat instead, and |
653 |
|
|
fill in the appropriate bits of the list allocated above. */ |
654 |
ats |
1.20 |
|
655 |
|
|
f = fopen("/proc/stat", "r"); |
656 |
|
|
if (f == NULL) goto out; |
657 |
|
|
now = time(NULL); |
658 |
|
|
|
659 |
|
|
line_ptr = f_read_line(f, "disk_io:"); |
660 |
|
|
if (line_ptr == NULL) goto out; |
661 |
|
|
|
662 |
|
|
while((line_ptr=strchr(line_ptr, ' '))!=NULL){ |
663 |
|
|
long long rsect, wsect; |
664 |
|
|
|
665 |
|
|
if (*++line_ptr == '\0') break; |
666 |
|
|
|
667 |
|
|
if((sscanf(line_ptr, |
668 |
|
|
"(%d,%d):(%*d, %*d, %lld, %*d, %lld)", |
669 |
|
|
&major, &minor, &rsect, &wsect)) != 4) { |
670 |
|
|
continue; |
671 |
|
|
} |
672 |
pajs |
1.10 |
|
673 |
ats |
1.20 |
/* Find the corresponding device from earlier. |
674 |
|
|
Just to add to the fun, "minor" is actually the disk |
675 |
|
|
number, not the device minor, so we need to figure |
676 |
|
|
out the real minor number based on the major! |
677 |
|
|
This list is not exhaustive; if you're running |
678 |
|
|
an older kernel you probably don't have fancy |
679 |
|
|
I2O hardware anyway... */ |
680 |
|
|
switch (major) { |
681 |
|
|
case 3: |
682 |
|
|
case 21: |
683 |
pajs |
1.10 |
case 22: |
684 |
ats |
1.20 |
case 33: |
685 |
|
|
case 34: |
686 |
|
|
case 36: |
687 |
|
|
case 56: |
688 |
|
|
case 57: |
689 |
|
|
case 88: |
690 |
|
|
case 89: |
691 |
|
|
case 90: |
692 |
|
|
case 91: |
693 |
|
|
minor *= 64; |
694 |
pajs |
1.11 |
break; |
695 |
ats |
1.20 |
case 9: |
696 |
|
|
case 43: |
697 |
pajs |
1.11 |
break; |
698 |
pajs |
1.10 |
default: |
699 |
ats |
1.20 |
minor *= 16; |
700 |
pajs |
1.11 |
break; |
701 |
ats |
1.20 |
} |
702 |
|
|
for (i = 0; i < n; i++) { |
703 |
|
|
if (major == parts[i].major |
704 |
|
|
&& minor == parts[i].minor) |
705 |
|
|
break; |
706 |
|
|
} |
707 |
|
|
if (i == n) continue; |
708 |
|
|
|
709 |
|
|
/* We read the number of blocks. Blocks are stored in |
710 |
|
|
512 bytes */ |
711 |
|
|
diskio_stats[i].read_bytes = rsect * 512; |
712 |
|
|
diskio_stats[i].write_bytes = wsect * 512; |
713 |
|
|
diskio_stats[i].systime = now; |
714 |
pajs |
1.10 |
} |
715 |
|
|
} |
716 |
pajs |
1.16 |
|
717 |
ats |
1.20 |
num_diskio = n; |
718 |
|
|
out: |
719 |
|
|
if (f != NULL) fclose(f); |
720 |
ats |
1.42 |
#endif |
721 |
pajs |
1.10 |
|
722 |
ats |
1.42 |
#ifdef CYGWIN |
723 |
|
|
return NULL; |
724 |
pajs |
1.10 |
#endif |
725 |
ats |
1.42 |
|
726 |
pajs |
1.5 |
*entries=num_diskio; |
727 |
pajs |
1.4 |
|
728 |
|
|
return diskio_stats; |
729 |
pajs |
1.5 |
} |
730 |
|
|
|
731 |
pajs |
1.6 |
diskio_stat_t *get_diskio_stats_diff(int *entries){ |
732 |
ats |
1.50 |
static diskio_stat_t *diff = NULL; |
733 |
|
|
static int diff_count = 0; |
734 |
ats |
1.55 |
diskio_stat_t *src = NULL, *dest; |
735 |
ats |
1.50 |
int i, j, new_count; |
736 |
|
|
|
737 |
|
|
if (diskio_stats == NULL) { |
738 |
|
|
/* No previous stats, so we can't calculate a difference. */ |
739 |
|
|
return get_diskio_stats(entries); |
740 |
pajs |
1.5 |
} |
741 |
|
|
|
742 |
ats |
1.50 |
/* Resize the results array to match the previous stats. */ |
743 |
|
|
diff = diskio_stat_malloc(num_diskio, &diff_count, diff); |
744 |
|
|
if (diff == NULL) { |
745 |
pajs |
1.5 |
return NULL; |
746 |
|
|
} |
747 |
|
|
|
748 |
ats |
1.50 |
/* Copy the previous stats into the result. */ |
749 |
|
|
for (i = 0; i < diff_count; i++) { |
750 |
|
|
src = &diskio_stats[i]; |
751 |
|
|
dest = &diff[i]; |
752 |
|
|
|
753 |
|
|
if (dest->disk_name != NULL) { |
754 |
|
|
free(dest->disk_name); |
755 |
|
|
} |
756 |
|
|
dest->disk_name = strdup(src->disk_name); |
757 |
|
|
dest->read_bytes = src->read_bytes; |
758 |
|
|
dest->write_bytes = src->write_bytes; |
759 |
|
|
dest->systime = src->systime; |
760 |
pajs |
1.5 |
} |
761 |
|
|
|
762 |
ats |
1.50 |
/* Get a new set of stats. */ |
763 |
|
|
if (get_diskio_stats(&new_count) == NULL) { |
764 |
ats |
1.47 |
return NULL; |
765 |
|
|
} |
766 |
pajs |
1.5 |
|
767 |
ats |
1.50 |
/* For each previous stat... */ |
768 |
|
|
for (i = 0; i < diff_count; i++) { |
769 |
|
|
dest = &diff[i]; |
770 |
|
|
|
771 |
|
|
/* ... find the corresponding new stat ... */ |
772 |
|
|
for (j = 0; j < new_count; j++) { |
773 |
|
|
/* Try the new stat in the same position first, |
774 |
|
|
since that's most likely to be it. */ |
775 |
|
|
src = &diskio_stats[(i + j) % new_count]; |
776 |
|
|
if (strcmp(src->disk_name, dest->disk_name) == 0) { |
777 |
|
|
break; |
778 |
pajs |
1.5 |
} |
779 |
|
|
} |
780 |
ats |
1.50 |
if (j == new_count) { |
781 |
|
|
/* No match found. */ |
782 |
|
|
continue; |
783 |
|
|
} |
784 |
pajs |
1.5 |
|
785 |
ats |
1.50 |
/* ... and subtract the previous stat from it to get the |
786 |
|
|
difference. */ |
787 |
|
|
dest->read_bytes = src->read_bytes - dest->read_bytes; |
788 |
|
|
dest->write_bytes = src->write_bytes - dest->write_bytes; |
789 |
|
|
dest->systime = src->systime - dest->systime; |
790 |
|
|
} |
791 |
pajs |
1.5 |
|
792 |
ats |
1.50 |
*entries = diff_count; |
793 |
|
|
return diff; |
794 |
pajs |
1.2 |
} |
795 |
ats |
1.50 |
|