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#include "node.h"
#include "platform.h"
#include <v8.h>
#include <mach/task.h>
#include <mach/mach.h>
#include <mach/mach_host.h>
#include <mach-o/dyld.h> /* _NSGetExecutablePath */
#include <limits.h> /* PATH_MAX */
#include <unistd.h> // sysconf
#include <sys/param.h>
#include <sys/sysctl.h>
#include <time.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;
}
// Platform::SetProcessTitle implemented in platform_darwin_proctitle.cc
} // namespace node
#include "platform_darwin_proctitle.cc"
namespace node {
const char* Platform::GetProcessTitle(int *len) {
if (process_title) {
*len = strlen(process_title);
return process_title;
}
*len = 0;
return NULL;
}
// Researched by Tim Becker and Michael Knight
// http://blog.kuriositaet.de/?p=257
int Platform::GetMemory(size_t *rss, size_t *vsize) {
struct task_basic_info t_info;
mach_msg_type_number_t t_info_count = TASK_BASIC_INFO_COUNT;
int r = task_info(mach_task_self(),
TASK_BASIC_INFO,
(task_info_t)&t_info,
&t_info_count);
if (r != KERN_SUCCESS) return -1;
*rss = t_info.resident_size;
*vsize = t_info.virtual_size;
return 0;
}
int Platform::GetExecutablePath(char* buffer, size_t* size) {
uint32_t usize = *size;
int result = _NSGetExecutablePath(buffer, &usize);
if (result) return result;
char *path = new char[2*PATH_MAX];
char *fullpath = realpath(buffer, path);
if (fullpath == NULL) {
delete [] path;
return -1;
}
strncpy(buffer, fullpath, *size);
delete [] fullpath;
*size = strlen(buffer);
return 0;
}
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);
char model[512];
uint64_t cpuspeed;
size_t size;
size = sizeof(model);
if (sysctlbyname("hw.model", &model, &size, NULL, 0) < 0) {
return -1;
}
size = sizeof(cpuspeed);
if (sysctlbyname("hw.cpufrequency", &cpuspeed, &size, NULL, 0) < 0) {
return -1;
}
natural_t numcpus;
mach_msg_type_number_t count;
processor_cpu_load_info_data_t *info;
if (host_processor_info(mach_host_self(), PROCESSOR_CPU_LOAD_INFO, &numcpus,
reinterpret_cast<processor_info_array_t*>(&info),
&count) != KERN_SUCCESS) {
return -1;
}
*cpus = Array::New(numcpus);
for (int i = 0; i < numcpus; i++) {
cpuinfo = Object::New();
cputimes = Object::New();
cputimes->Set(String::New("user"),
Number::New((uint64_t)(info[i].cpu_ticks[0]) * multiplier));
cputimes->Set(String::New("nice"),
Number::New((uint64_t)(info[i].cpu_ticks[3]) * multiplier));
cputimes->Set(String::New("sys"),
Number::New((uint64_t)(info[i].cpu_ticks[1]) * multiplier));
cputimes->Set(String::New("idle"),
Number::New((uint64_t)(info[i].cpu_ticks[2]) * multiplier));
cputimes->Set(String::New("irq"), Number::New(0));
cpuinfo->Set(String::New("model"), String::New(model));
cpuinfo->Set(String::New("speed"), Number::New(cpuspeed/1000000));
cpuinfo->Set(String::New("times"), cputimes);
(*cpus)->Set(i, cpuinfo);
}
vm_deallocate(mach_task_self(), (vm_address_t)info, count);
return 0;
}
double Platform::GetFreeMemory() {
double pagesize = static_cast<double>(sysconf(_SC_PAGESIZE));
vm_statistics_data_t info;
mach_msg_type_number_t count = sizeof(info) / sizeof(integer_t);
if (host_statistics(mach_host_self(), HOST_VM_INFO,
(host_info_t)&info, &count) != KERN_SUCCESS) {
return -1;
}
return (static_cast<double>(info.free_count)) * pagesize;
}
double Platform::GetTotalMemory() {
uint64_t info;
static int which[] = {CTL_HW, HW_MEMSIZE};
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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