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#include <sys/types.h>
#include <sys/sysctl.h>
#include <sys/vmmeter.h>
#include <vm/vm_param.h>
#include <kvm.h>
#include <fcntl.h>
#include <paths.h>
#include <unistd.h>
void KCMMemory::fetchValues()
{
/* Stuff for sysctl */
size_t len;
unsigned long memory;
len = sizeof(memory);
sysctlbyname("hw.physmem", &memory, &len, NULL, 0);
// Numerical values
// total physical memory (without swap space)
memoryInfos[TOTAL_MEM] = MEMORY(memory);
unsigned int cached;
len = sizeof(cached);
if (sysctlbyname("vm.stats.vm.v_cache_count", &cached, &len, NULL, 0) == -1 || !len)
memoryInfos[CACHED_MEM] = NO_MEMORY_INFO;
else
memoryInfos[CACHED_MEM] = MEMORY(cached) * PAGE_SIZE;
unsigned int free;
len = sizeof(free);
if (sysctlbyname("vm.stats.vm.v_free_count", &free, &len, NULL, 0) == -1 || !len)
memoryInfos[FREE_MEM] = NO_MEMORY_INFO;
else
memoryInfos[FREE_MEM] = MEMORY(free) * PAGE_SIZE;
// added by Brad Hughes bhughes@trolltech.com
struct vmtotal vmem;
len = sizeof(vmem);
if (sysctlbyname("vm.vmtotal", &vmem, &len, NULL, 0) == -1 || !len)
memoryInfos[SHARED_MEM] = NO_MEMORY_INFO;
else
memoryInfos[SHARED_MEM] = MEMORY(vmem.t_armshr) * PAGE_SIZE;
long buffers;
len = sizeof(buffers);
if ((sysctlbyname("vfs.bufspace", &buffers, &len, NULL, 0) == -1) || !len)
memoryInfos[BUFFER_MEM] = NO_MEMORY_INFO;
else
memoryInfos[BUFFER_MEM] = MEMORY(buffers);
struct kvm_swap swap[1];
kvm_t *kvm_handle;
kvm_handle = kvm_open(NULL, _PATH_DEVNULL, NULL, O_RDONLY, "kvm_open");
if (kvm_handle != NULL && kvm_getswapinfo(kvm_handle, swap, 1, 0) != -1) {
memoryInfos[SWAP_MEM] = MEMORY(swap[0].ksw_total) * PAGE_SIZE;
memoryInfos[FREESWAP_MEM] = MEMORY(swap[0].ksw_total - swap[0].ksw_used) * PAGE_SIZE;
}
if (kvm_handle != NULL)
kvm_close(kvm_handle);
}
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