बेशक यह संभव है। लेकिन आपको ऐसा करने के लिए एक C++ देशी मॉड्यूल की आवश्यकता होगी। और ध्यान रखें कि प्रत्येक ओएस का सिस्टम संसाधन उपयोग पूछताछ का अपना तरीका है।
उदाहरण के लिए, यदि आप Windows पर हैं (हो सकता है जो आपके लिए usage
के बाद से विंडोज का समर्थन नहीं करता जो खोज रहे हैं), तुम कर सकते हो कुछ
तरह
performance.cpp
#include <node.h>
#include "performance_algorithm.hpp"
using namespace v8;
void InitAll(Handle<Object> exports) {
PerformanceAlgorithm::Initialize();
PerformanceAlgorithm::RegisterMethod(exports);
}
NODE_MODULE(Performance, InitAll)
performance_algorithm.cpp
#include <algorithm>
#include "baton.hpp"
#include "structs.hpp"
#include "performance_algorithm.hpp"
void PerformanceAlgorithm::Initialize() {
PdhOpenQuery(NULL, NULL, &cpuQuery);
PdhAddCounter(cpuQuery, "\\Processor(_Total)\\% Processor Time", NULL, &cpuTotal);
PdhCollectQueryData(cpuQuery);
}
void PerformanceAlgorithm::RegisterMethod(Handle<Object> exports) {
NODE_SET_METHOD(exports, "getPerformanceData", PerformanceAlgorithm::GetPerformanceDataAsync);
}
void PerformanceAlgorithm::GetPerformanceDataAsync(const FunctionCallbackInfo<Value>& args) {
Isolate* isolate = Isolate::GetCurrent();
HandleScope scope(isolate);
if (args.Length() != 1) {
isolate->ThrowException(Exception::TypeError(String::NewFromUtf8(isolate, "Wrong number of arguments")));
} else {
if (!args[0]->IsFunction()) {
isolate->ThrowException(Exception::TypeError(String::NewFromUtf8(isolate, "Wrong arguments type")));
} else {
Local<Function> callbackFunction = Local<Function>::Cast(args[0]);
Baton<string, PerformanceData>* baton = new Baton<string, PerformanceData>();
baton->request.data = baton;
baton->callbackFunction.Reset(isolate, callbackFunction);
uv_queue_work(uv_default_loop(), &baton->request, PerformanceAlgorithm::GetPerformanceDataWork, PerformanceAlgorithm::GetPerformanceDataAsyncAfter);
}
}
}
void PerformanceAlgorithm::GetPerformanceDataWork(uv_work_t* request) {
Baton<string, PerformanceData>* baton = static_cast<Baton<string, PerformanceData>*>(request->data);
baton->result.memory_info.dwLength = sizeof(MEMORYSTATUSEX);
GlobalMemoryStatusEx(&baton->result.memory_info);
PDH_FMT_COUNTERVALUE counterVal;
PdhCollectQueryData(cpuQuery);
PdhGetFormattedCounterValue(cpuTotal, PDH_FMT_DOUBLE, NULL, &counterVal);
baton->result.cpu_usage = counterVal.doubleValue;
DWORD processIDs[1024], bytesReturned;
EnumProcesses(processIDs, sizeof(processIDs), &bytesReturned);
DWORD numberOfProcesses = bytesReturned/sizeof(DWORD);
for (int i = 0; i < numberOfProcesses; i++) {
HANDLE hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, processIDs[i]);
HMODULE hMods[1024];
DWORD cbNeeded;
if (EnumProcessModules(hProcess, hMods, sizeof(hMods), &cbNeeded)) {
for (int j = 0; j < (cbNeeded/sizeof(HMODULE)); j++) {
TCHAR szModName[MAX_PATH];
GetModuleFileNameEx(hProcess, hMods[j], szModName, sizeof(szModName)/sizeof(TCHAR));
ProcessInfo info;
info.process_id = processIDs[i];
info.path = string(szModName);
baton->result.processes.push_back(info);
break;
}
}
CloseHandle(hProcess);
}
sort(baton->result.processes.begin(), baton->result.processes.end(), [](ProcessInfo a, ProcessInfo b) -> bool {
return a.process_id < b.process_id;
});
GetPerformanceInfo(&baton->result.performance_info, sizeof(PERFORMACE_INFORMATION));
}
void PerformanceAlgorithm::GetPerformanceDataAsyncAfter(uv_work_t* request, int status) {
Isolate* isolate = Isolate::GetCurrent();
HandleScope scope(isolate);
EscapableHandleScope escapableHandleScope(isolate);
Baton<string, PerformanceData>* baton = static_cast<Baton<string, PerformanceData>*>(request->data);
Local<Function> callbackFunction = Local<Function>::New(isolate, baton->callbackFunction);
Local<Object> returnValue = Object::New(isolate);
returnValue->Set(String::NewFromUtf8(isolate, "cpu_usage"), Number::New(isolate, baton->result.cpu_usage));
returnValue->Set(String::NewFromUtf8(isolate, "ram_usage"), Number::New(isolate, baton->result.memory_info.dwMemoryLoad));
returnValue->Set(String::NewFromUtf8(isolate, "total_physical_memory"), Number::New(isolate, baton->result.memory_info.ullTotalPhys));
returnValue->Set(String::NewFromUtf8(isolate, "available_physical_memory"), Number::New(isolate, baton->result.memory_info.ullAvailPhys));
returnValue->Set(String::NewFromUtf8(isolate, "total_page_file"), Number::New(isolate, baton->result.memory_info.ullTotalPageFile));
returnValue->Set(String::NewFromUtf8(isolate, "available_page_file"), Number::New(isolate, baton->result.memory_info.ullAvailPageFile));
returnValue->Set(String::NewFromUtf8(isolate, "total_virtual"), Number::New(isolate, baton->result.memory_info.ullTotalVirtual));
returnValue->Set(String::NewFromUtf8(isolate, "available_virtual"), Number::New(isolate, baton->result.memory_info.ullAvailVirtual));
Local<Array> processes = Array::New(isolate, baton->result.processes.size());
for (int i = 0; i < baton->result.processes.size(); i++) {
Local<Object> processInfo = Object::New(isolate);
processInfo->Set(String::NewFromUtf8(isolate, "process_id"), Number::New(isolate, baton->result.processes[i].process_id));
processInfo->Set(String::NewFromUtf8(isolate, "path"), String::NewFromUtf8(isolate, baton->result.processes[i].path.c_str()));
processes->Set(i, processInfo);
}
returnValue->Set(String::NewFromUtf8(isolate, "running_processes"), processes);
const unsigned int argc = 1;
Handle<Value> argv[argc] = { escapableHandleScope.Escape(returnValue) };
callbackFunction->Call(isolate->GetCurrentContext()->Global(), argc, argv);
baton->callbackFunction.Reset();
delete baton;
}
उपयोग कर सकते हैं ओएस-utils से पता चलता नोड प्रक्रिया की जानकारी की तरह दिखता है, कुल मिलाकर नहीं –