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#include "EXTERN.h"
#include "perl.h"
#include "XSUB.h"
MODULE = Sys::MemInfo PACKAGE = Sys::MemInfo
#include "arch/functions.h"
#include <stdio.h>
#include <sys/param.h>
#include <sys/sysctl.h>
#include <vm/vm_param.h>
void
availkeys()
PREINIT:
PPCODE:
XPUSHs(sv_2mortal(newSVpv(_totalmem, strlen(_totalmem))));
XPUSHs(sv_2mortal(newSVpv(_freemem, strlen(_freemem))));
XPUSHs(sv_2mortal(newSVpv(_totalswap, strlen(_totalswap))));
XPUSHs(sv_2mortal(newSVpv(_freeswap, strlen(_freeswap))));
double
totalmem()
PROTOTYPE: DISABLE
CODE:
unsigned long long ret = 0;
size_t len = sizeof (ret);
static int mib[2] = { CTL_HW, HW_PHYSMEM };
if (sysctl (mib, 2, &ret, &len, NULL, 0) != -1) {
RETVAL = (double) (ret);
} else {
RETVAL = 0;
}
OUTPUT:
RETVAL
double
freemem()
PROTOTYPE: DISABLE
CODE:
unsigned long fmem = 0;
double ret = 0;
size_t len = sizeof (fmem);
static int pagesize = 0;
if (!pagesize) pagesize = getpagesize();
if (sysctlbyname("vm.stats.vm.v_free_count", &fmem, &len, NULL, 0) != -1) {
ret = (double) (fmem);
ret *= pagesize;
}
RETVAL = ret;
OUTPUT:
RETVAL
double
totalswap()
PROTOTYPE: DISABLE
CODE:
unsigned long long ret= 0;
#ifdef FREEBSD5
struct xswdev xsw;
int mib[3], n = 0;
static int pagesize = 0;
size_t mibsize = sizeof mib / sizeof mib[0], size;
if (!pagesize) pagesize = getpagesize();
if (0 == sysctlnametomib("vm.swap_info", mib, &mibsize)) {
while (1) {
mib[mibsize] = n++;
size = sizeof xsw;
if (-1 == sysctl(mib, mibsize + 1, &xsw, &size, NULL, 0))
break;
if (xsw.xsw_version != XSWDEV_VERSION)
break;
ret += (unsigned long long) xsw.xsw_nblks;
}
}
ret *= pagesize;
#else
struct kvm_swap swapinfo;
kvm_t *kvmd;
#endif
RETVAL = (double) ret;
OUTPUT:
RETVAL
double
freeswap()
PROTOTYPE: DISABLE
CODE:
unsigned long long ret= 0;
unsigned long long used = 0;
#ifdef FREEBSD5
struct xswdev xsw;
int mib[3], n = 0;
static int pagesize = 0;
size_t mibsize = sizeof mib / sizeof mib[0], size;
if (!pagesize) pagesize = getpagesize();
if (0 == sysctlnametomib("vm.swap_info", mib, &mibsize)) {
while (1) {
mib[mibsize] = n++;
size = sizeof xsw;
if (-1 == sysctl(mib, mibsize + 1, &xsw, &size, NULL, 0))
break;
if (xsw.xsw_version != XSWDEV_VERSION)
break;
ret += (unsigned long long) xsw.xsw_nblks;
used += (unsigned long long) xsw.xsw_used;
}
}
ret = (ret - used) * pagesize;
#else
struct kvm_swap swapinfo;
kvm_t *kvmd;
#endif
RETVAL = (double) ret;
OUTPUT:
RETVAL
# vim:et:ts=2:sts=2:sw=2
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