Init

AwSystemCpuLoading.cpp

@@ -0,0 +1,46 @@
+#include "AwSystemCpuLoading.h"
+
+
+#pragma comment(lib, "Pdh.lib")
+
+
+AwSystemCpuLoading::AwSystemCpuLoading() {
+    init();
+
+    pollingThread = std::thread([this]() {
+        while (1) {
+            if (pollingThreadStop) {
+                break;
+            }
+
+            this->loadingValue = this->getLoading();
+            Sleep(1000);
+        }
+        });
+}
+
+AwSystemCpuLoading::~AwSystemCpuLoading() {
+    pollingThreadStop = true;
+    pollingThread.join();
+    PdhCloseQuery(cpuQuery);
+}
+
+double AwSystemCpuLoading::getValue() {
+    return this->loadingValue;
+}
+
+double AwSystemCpuLoading::getLoading() {
+    PDH_FMT_COUNTERVALUE counterVal;
+
+    PdhCollectQueryData(cpuQuery);
+    PdhGetFormattedCounterValue(cpuTotal, PDH_FMT_DOUBLE, NULL, &counterVal);
+    return counterVal.doubleValue;
+}
+
+void AwSystemCpuLoading::init() {
+    PdhOpenQuery(NULL, NULL, &cpuQuery);
+    // You can also use L"\\Processor(*)\\% Processor Time" and get individual CPU values with PdhGetFormattedCounterArray()
+    PdhAddCounter(cpuQuery, L"\\Processor(*)\\% Processor Time", NULL, &cpuTotal);
+    //PdhAddCounter(cpuQuery, L"\\Processor Information(_Total)\\% Processor Time", NULL, &cpuTotal);
+    PdhCollectQueryData(cpuQuery);
+}