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#include "node.h"
#include "platform.h"
#include <v8.h>
#include <stdlib.h>
#include <kvm.h>
#include <sys/param.h>
#include <sys/sysctl.h>
#include <sys/user.h>
#include <sys/dkstat.h>
#include <uvm/uvm_param.h>
#include <string.h>
#include <paths.h>
#include <fcntl.h>
#include <unistd.h>
#include <time.h>
#include <stdio.h>
namespace node {
using namespace v8;
static char *process_title;
char** Platform::SetupArgs(int argc, char *argv[]) {
process_title = argc ? strdup(argv[0]) : NULL;
return argv;
}
void Platform::SetProcessTitle(char *title) {
if (process_title) free(process_title);
process_title = strdup(title);
setproctitle(title);
}
const char* Platform::GetProcessTitle(int *len) {
if (process_title) {
*len = strlen(process_title);
return process_title;
}
*len = 0;
return NULL;
}
int Platform::GetMemory(size_t *rss, size_t *vsize) {
kvm_t *kd = NULL;
struct kinfo_proc2 *kinfo = NULL;
pid_t pid;
int nprocs, max_size = sizeof(struct kinfo_proc2);
size_t page_size = getpagesize();
pid = getpid();
kd = kvm_open(NULL, _PATH_MEM, NULL, O_RDONLY, "kvm_open");
if (kd == NULL) goto error;
kinfo = kvm_getproc2(kd, KERN_PROC_PID, pid, max_size, &nprocs);
if (kinfo == NULL) goto error;
*rss = kinfo->p_vm_rssize * page_size;
*vsize = kinfo->p_uru_ixrss;
kvm_close(kd);
return 0;
error:
if (kd) kvm_close(kd);
return -1;
}
int Platform::GetExecutablePath(char* buffer, size_t* size) {
*size = 0;
return -1;
}
int Platform::GetCPUInfo(Local<Array> *cpus) {
Local<Object> cpuinfo;
Local<Object> cputimes;
unsigned int ticks = (unsigned int)sysconf(_SC_CLK_TCK),
multiplier = ((uint64_t)1000L / ticks), cpuspeed;
uint64_t info[CPUSTATES];
char model[512];
int numcpus = 1;
static int which[] = {CTL_HW, HW_MODEL, NULL};
size_t size;
size = sizeof(model);
if (sysctl(which, 2, &model, &size, NULL, 0) < 0) {
return -1;
}
which[1] = HW_NCPU;
size = sizeof(numcpus);
if (sysctl(which, 2, &numcpus, &size, NULL, 0) < 0) {
return -1;
}
*cpus = Array::New(numcpus);
which[1] = HW_CPUSPEED;
size = sizeof(cpuspeed);
if (sysctl(which, 2, &cpuspeed, &size, NULL, 0) < 0) {
return -1;
}
size = sizeof(info);
which[0] = CTL_KERN;
which[1] = KERN_CPTIME2;
for (int i = 0; i < numcpus; i++) {
which[2] = i;
size = sizeof(info);
if (sysctl(which, 3, &info, &size, NULL, 0) < 0) {
return -1;
}
cpuinfo = Object::New();
cputimes = Object::New();
cputimes->Set(String::New("user"),
Number::New((uint64_t)(info[CP_USER]) * multiplier));
cputimes->Set(String::New("nice"),
Number::New((uint64_t)(info[CP_NICE]) * multiplier));
cputimes->Set(String::New("sys"),
Number::New((uint64_t)(info[CP_SYS]) * multiplier));
cputimes->Set(String::New("idle"),
Number::New((uint64_t)(info[CP_IDLE]) * multiplier));
cputimes->Set(String::New("irq"),
Number::New((uint64_t)(info[CP_INTR]) * multiplier));
cpuinfo->Set(String::New("model"), String::New(model));
cpuinfo->Set(String::New("speed"), Number::New(cpuspeed));
cpuinfo->Set(String::New("times"), cputimes);
(*cpus)->Set(i, cpuinfo);
}
return 0;
}
double Platform::GetFreeMemory() {
double pagesize = static_cast<double>(sysconf(_SC_PAGESIZE));
struct uvmexp info;
size_t size = sizeof(info);
static int which[] = {CTL_VM, VM_UVMEXP};
if (sysctl(which, 2, &info, &size, NULL, 0) < 0) {
return -1;
}
return static_cast<double>(info.free) * pagesize;
}
double Platform::GetTotalMemory() {
#if defined(HW_PHYSMEM64)
uint64_t info;
static int which[] = {CTL_HW, HW_PHYSMEM64};
#else
unsigned int info;
static int which[] = {CTL_HW, HW_PHYSMEM};
#endif
size_t size = sizeof(info);
if (sysctl(which, 2, &info, &size, NULL, 0) < 0) {
return -1;
}
return static_cast<double>(info);
}
double Platform::GetUptime() {
time_t now;
struct timeval info;
size_t size = sizeof(info);
static int which[] = {CTL_KERN, KERN_BOOTTIME};
if (sysctl(which, 2, &info, &size, NULL, 0) < 0) {
return -1;
}
now = time(NULL);
return static_cast<double>(now - info.tv_sec);
}
int Platform::GetLoadAvg(Local<Array> *loads) {
struct loadavg info;
size_t size = sizeof(info);
static int which[] = {CTL_VM, VM_LOADAVG};
if (sysctl(which, 2, &info, &size, NULL, 0) < 0) {
return -1;
}
(*loads)->Set(0, Number::New(static_cast<double>(info.ldavg[0])
/ static_cast<double>(info.fscale)));
(*loads)->Set(1, Number::New(static_cast<double>(info.ldavg[1])
/ static_cast<double>(info.fscale)));
(*loads)->Set(2, Number::New(static_cast<double>(info.ldavg[2])
/ static_cast<double>(info.fscale)));
return 0;
}
} // namespace node
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