| 32 |
|
#include <stdio.h> |
| 33 |
|
#include <string.h> |
| 34 |
|
#endif |
| 35 |
– |
#ifdef ALLBSD |
| 35 |
|
#ifdef FREEBSD |
| 36 |
|
#include <sys/types.h> |
| 37 |
|
#include <sys/sysctl.h> |
| 39 |
– |
#else |
| 40 |
– |
#include <sys/param.h> |
| 41 |
– |
#include <sys/sysctl.h> |
| 42 |
– |
#endif |
| 38 |
|
#include <unistd.h> |
| 39 |
|
#endif |
| 40 |
|
|
| 51 |
|
#endif |
| 52 |
|
#ifdef LINUX |
| 53 |
|
char *line_ptr; |
| 54 |
+ |
unsigned long long value; |
| 55 |
|
FILE *f; |
| 56 |
|
#endif |
| 61 |
– |
#ifdef ALLBSD |
| 62 |
– |
int mib[2]; |
| 57 |
|
#ifdef FREEBSD |
| 58 |
+ |
int mib[2]; |
| 59 |
+ |
u_long physmem; |
| 60 |
+ |
size_t size; |
| 61 |
|
u_int free_count; |
| 62 |
|
u_int cache_count; |
| 63 |
|
u_int inactive_count; |
| 66 |
|
#ifdef NETBSD |
| 67 |
|
struct uvmexp *uvm; |
| 68 |
|
#endif |
| 72 |
– |
u_long physmem; |
| 73 |
– |
size_t size; |
| 74 |
– |
#endif |
| 69 |
|
|
| 70 |
|
#ifdef SOLARIS |
| 71 |
|
if((pagesize=sysconf(_SC_PAGESIZE)) == -1){ |
| 96 |
|
#endif |
| 97 |
|
|
| 98 |
|
#ifdef LINUX |
| 99 |
< |
f=fopen("/proc/meminfo", "r"); |
| 100 |
< |
if(f==NULL){ |
| 99 |
> |
f = fopen("/proc/meminfo", "r"); |
| 100 |
> |
if (f == NULL) { |
| 101 |
|
return NULL; |
| 102 |
|
} |
| 103 |
|
|
| 104 |
< |
if((line_ptr=f_read_line(f, "Mem:"))==NULL){ |
| 105 |
< |
fclose(f); |
| 106 |
< |
return NULL; |
| 107 |
< |
} |
| 104 |
> |
while ((line_ptr = f_read_line(f, "")) != NULL) { |
| 105 |
> |
if (sscanf(line_ptr, "%*s %lld kB", &value) != 2) { |
| 106 |
> |
continue; |
| 107 |
> |
} |
| 108 |
> |
value *= 1024; |
| 109 |
|
|
| 110 |
< |
fclose(f); |
| 111 |
< |
|
| 112 |
< |
/* Linux actually stores this as a unsigned long long, but |
| 113 |
< |
* our structures are just long longs. This shouldn't be a |
| 114 |
< |
* problem for sometime yet :) |
| 115 |
< |
*/ |
| 116 |
< |
if((sscanf(line_ptr,"Mem: %lld %lld %lld %*d %*d %lld", \ |
| 122 |
< |
size = sizeof physmem; |
| 123 |
< |
&mem_stat.total, \ |
| 124 |
< |
&mem_stat.used, \ |
| 125 |
< |
&mem_stat.free, \ |
| 126 |
< |
&mem_stat.cache))!=4){ |
| 127 |
< |
return NULL; |
| 110 |
> |
if (strncmp(line_ptr, "MemTotal:", 9) == 0) { |
| 111 |
> |
mem_stat.total = value; |
| 112 |
> |
} else if (strncmp(line_ptr, "MemFree:", 8) == 0) { |
| 113 |
> |
mem_stat.free = value; |
| 114 |
> |
} else if (strncmp(line_ptr, "Cached:", 7) == 0) { |
| 115 |
> |
mem_stat.cache = value; |
| 116 |
> |
} |
| 117 |
|
} |
| 118 |
|
|
| 119 |
+ |
fclose(f); |
| 120 |
+ |
mem_stat.used = mem_stat.total - mem_stat.free; |
| 121 |
|
#endif |
| 122 |
|
|
| 123 |
< |
#ifdef ALLBSD |
| 123 |
> |
#ifdef FREEBSD |
| 124 |
|
/* Returns bytes */ |
| 125 |
|
mib[0] = CTL_HW; |
| 126 |
|
mib[1] = HW_PHYSMEM; |
| 131 |
|
mem_stat.total = physmem; |
| 132 |
|
|
| 133 |
|
/*returns pages*/ |
| 143 |
– |
#ifdef FREEBSD |
| 134 |
|
size = sizeof free_count; |
| 135 |
|
if (sysctlbyname("vm.stats.vm.v_free_count", &free_count, &size, NULL, 0) < 0){ |
| 136 |
|
return NULL; |
| 162 |
|
mem_stat.free=(free_count*pagesize)+(inactive_count*pagesize); |
| 163 |
|
mem_stat.used=physmem-mem_stat.free; |
| 164 |
|
#endif |
| 165 |
+ |
|
| 166 |
|
#ifdef NETBSD |
| 176 |
– |
/* FIXME This is not consistent with the FreeBSD logic above. */ |
| 167 |
|
if ((uvm = get_uvmexp()) == NULL) { |
| 168 |
|
return NULL; |
| 169 |
|
} |
| 170 |
+ |
mem_stat.total = uvm->pagesize * uvm->npages; |
| 171 |
|
mem_stat.cache = uvm->pagesize * (uvm->filepages + uvm->execpages); |
| 172 |
< |
mem_stat.free = uvm->pagesize * uvm->free; |
| 173 |
< |
mem_stat.used = uvm->pagesize * (uvm->npages - uvm->free); |
| 172 |
> |
mem_stat.free = uvm->pagesize * (uvm->free + uvm->inactive); |
| 173 |
> |
mem_stat.used = mem_stat.total - mem_stat.free; |
| 174 |
|
#endif |
| 184 |
– |
#endif |
| 175 |
|
|
| 176 |
|
return &mem_stat; |
| 187 |
– |
|
| 177 |
|
} |
