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root/i-scream/projects/libstatgrab/src/libstatgrab/memory_stats.c
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Comparing projects/libstatgrab/src/libstatgrab/memory_stats.c (file contents):
Revision 1.5 by pajs, Wed Mar 5 21:00:59 2003 UTC vs.
Revision 1.11 by ats, Sat Oct 18 23:04:23 2003 UTC

# Line 1 | Line 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) 2000-2003 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
# Line 32 | Line 32
32   #include <string.h>
33   #include "tools.h"
34   #endif
35 + #ifdef FREEBSD
36 + #include <sys/types.h>
37 + #include <sys/sysctl.h>
38 + #include <unistd.h>
39 + #endif
40  
41   mem_stat_t *get_memory_stats(){
42  
# Line 48 | Line 53 | mem_stat_t *get_memory_stats(){
53          char *line_ptr;
54          FILE *f;
55   #endif
56 + #ifdef FREEBSD
57 +        u_int free_count;
58 +        u_int cache_count;
59 +        u_int inactive_count;
60 +        u_long physmem;
61 +        size_t size;
62 +        int pagesize;
63 + #endif
64  
65   #ifdef SOLARIS
66          if((pagesize=sysconf(_SC_PAGESIZE)) == -1){
# Line 102 | Line 115 | mem_stat_t *get_memory_stats(){
115                          return NULL;
116          }
117  
118 + #endif
119 +
120 + #ifdef FREEBSD
121 +        /* Returns bytes */
122 +        size = sizeof physmem;
123 +        if (sysctlbyname("hw.physmem", &physmem, &size, NULL, 0) < 0){
124 +                return NULL;
125 +        }
126 +
127 +        /*returns pages*/
128 +        size = sizeof free_count;
129 +        if (sysctlbyname("vm.stats.vm.v_free_count", &free_count, &size, NULL, 0) < 0){
130 +                return NULL;
131 +        }
132 +
133 +        size = sizeof inactive_count;
134 +        if (sysctlbyname("vm.stats.vm.v_inactive_count", &inactive_count , &size, NULL, 0) < 0){
135 +                return NULL;
136 +        }
137 +
138 +        size = sizeof cache_count;
139 +        if (sysctlbyname("vm.stats.vm.v_cache_count", &cache_count, &size, NULL, 0) < 0){
140 +                return NULL;
141 +        }
142 +
143 +        /* Because all the vm.stats returns pages, I need to get the page size.
144 +         * After that I then need to multiple the anything that used vm.stats to
145 +         * get the system statistics by pagesize
146 +         */
147 +        if ((pagesize=getpagesize()) == -1){
148 +                return NULL;
149 +        }
150 +
151 +        mem_stat.total=physmem;
152 +        mem_stat.cache=cache_count*pagesize;
153 +
154 +        /* Of couse nothing is ever that simple :) And I have inactive pages to
155 +         * deal with too. So I'm going to add them to free memory :)
156 +         */
157 +        mem_stat.free=(free_count*pagesize)+(inactive_count*pagesize);
158 +        mem_stat.used=physmem-mem_stat.free;
159   #endif
160  
161          return &mem_stat;

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