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root/i-scream/projects/libstatgrab/src/libstatgrab/swap_stats.c
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Comparing projects/libstatgrab/src/libstatgrab/swap_stats.c (file contents):
Revision 1.3 by pajs, Fri Mar 7 15:43:14 2003 UTC vs.
Revision 1.17 by tdb, Sun Apr 4 21:54:49 2004 UTC

# Line 1 | Line 1
1 < /*
1 > /*
2   * 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) 2000-2004 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 < * 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 > * 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 < * along with this program; if not, write to the Free Software
18 < * 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   */
23  
24   #ifdef HAVE_CONFIG_H
# Line 23 | Line 26
26   #endif
27  
28   #include "statgrab.h"
29 + #include "tools.h"
30   #ifdef SOLARIS
31   #include <sys/stat.h>
32   #include <sys/swap.h>
33   #include <unistd.h>
34   #endif
35 < #ifdef LINUX
35 > #if defined(LINUX) || defined(CYGWIN)
36   #include <stdio.h>
37 < #include "tools.h"
37 > #include <string.h>
38   #endif
39 + #if defined(FREEBSD) || defined(DFBSD)
40 + #ifdef FREEBSD5
41 + #include <sys/param.h>
42 + #include <sys/sysctl.h>
43 + #include <sys/user.h>
44 + #else
45 + #include <sys/types.h>
46 + #include <kvm.h>
47 + #endif
48 + #include <unistd.h>
49 + #endif
50 + #if defined(NETBSD) || defined(OPENBSD)
51 + #include <sys/param.h>
52 + #include <sys/time.h>
53 + #include <uvm/uvm.h>
54 + #include <unistd.h>
55 + #endif
56  
57   swap_stat_t *get_swap_stats(){
58  
# Line 41 | Line 62 | swap_stat_t *get_swap_stats(){
62          struct anoninfo ai;
63          int pagesize;
64   #endif
65 < #ifdef LINUX
65 > #if defined(LINUX) || defined(CYGWIN)
66          FILE *f;
67          char *line_ptr;
68 +        unsigned long long value;
69   #endif
70 + #if defined(FREEBSD) || defined(DFBSD)
71 +        int pagesize;
72 + #ifdef FREEBSD5
73 +        struct xswdev xsw;
74 +        int mib[16], n;
75 +        size_t mibsize, size;
76 + #else
77 +        struct kvm_swap swapinfo;
78 +        kvm_t *kvmd;
79 + #endif
80 + #endif
81 + #if defined(NETBSD) || defined(OPENBSD)
82 +        struct uvmexp *uvm;
83 + #endif
84  
85   #ifdef SOLARIS
86          if((pagesize=sysconf(_SC_PAGESIZE)) == -1){
# Line 57 | Line 93 | swap_stat_t *get_swap_stats(){
93          swap_stat.used = (long long)ai.ani_resv * (long long)pagesize;
94          swap_stat.free = swap_stat.total - swap_stat.used;
95   #endif
96 < #ifdef LINUX
97 <        if ((f=fopen("/proc/meminfo", "r" ))==NULL) {
96 > #if defined(LINUX) || defined(CYGWIN)
97 >        if ((f = fopen("/proc/meminfo", "r")) == NULL) {
98                  return NULL;
99          }
100 <        if((line_ptr=f_read_line(f, "Swap:"))==NULL){
101 <                fclose(f);
100 >
101 >        while ((line_ptr = f_read_line(f, "")) != NULL) {
102 >                if (sscanf(line_ptr, "%*s %llu kB", &value) != 1) {
103 >                        continue;
104 >                }
105 >                value *= 1024;
106 >
107 >                if (strncmp(line_ptr, "SwapTotal:", 10) == 0) {
108 >                        swap_stat.total = value;
109 >                } else if (strncmp(line_ptr, "SwapFree:", 9) == 0) {
110 >                        swap_stat.free = value;
111 >                }
112 >        }
113 >
114 >        fclose(f);
115 >        swap_stat.used = swap_stat.total - swap_stat.free;
116 > #endif
117 > #if defined(FREEBSD) || defined(DFBSD)
118 >        pagesize=getpagesize();
119 >
120 > #ifdef FREEBSD5
121 >        swap_stat.total = 0;
122 >        swap_stat.used = 0;
123 >
124 >        mibsize = sizeof mib / sizeof mib[0];
125 >        if (sysctlnametomib("vm.swap_info", mib, &mibsize) < 0) {
126                  return NULL;
127          }
128 <        if((sscanf(line_ptr, "Swap: %lld %lld %lld", &swap_stat.total, &swap_stat.used, &swap_stat.free))!=3){
129 <                fclose(f);
128 >        for (n = 0; ; ++n) {
129 >                mib[mibsize] = n;
130 >                size = sizeof xsw;
131 >                if (sysctl(mib, mibsize + 1, &xsw, &size, NULL, NULL) < 0) {
132 >                        break;
133 >                }
134 >                if (xsw.xsw_version != XSWDEV_VERSION) {
135 >                        return NULL;
136 >                }
137 >                swap_stat.total += (long long) xsw.xsw_nblks;
138 >                swap_stat.used += (long long) xsw.xsw_used;
139 >        }
140 >        if (errno != ENOENT) {
141                  return NULL;
142          }
143 <        fclose(f);
143 > #else
144 >        if((kvmd = get_kvm()) == NULL){
145 >                return NULL;
146 >        }
147 >        if ((kvm_getswapinfo(kvmd, &swapinfo, 1,0)) == -1){
148 >                return NULL;
149 >        }
150 >
151 >        swap_stat.total = (long long)swapinfo.ksw_total;
152 >        swap_stat.used = (long long)swapinfo.ksw_used;
153 > #endif
154 >        swap_stat.total *= pagesize;
155 >        swap_stat.used *= pagesize;
156 >        swap_stat.free = swap_stat.total - swap_stat.used;
157 > #endif
158 > #if defined(NETBSD) || defined(OPENBSD)
159 >        if ((uvm = get_uvmexp()) == NULL) {
160 >                return NULL;
161 >        }
162 >
163 >        swap_stat.total = (long long)uvm->pagesize * (long long)uvm->swpages;
164 >        swap_stat.used = (long long)uvm->pagesize * (long long)uvm->swpginuse;
165 >        swap_stat.free = swap_stat.total - swap_stat.used;
166   #endif
167  
168          return &swap_stat;

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