feat add profiling

3party/cppuprofile/lib/util/cpumonitor.h

@@ -0,0 +1,41 @@
+// Software Name : cppuprofile
+// SPDX-FileCopyrightText: Copyright (c) 2022 Orange
+// SPDX-License-Identifier: BSD-3-Clause
+//
+// This software is distributed under the BSD License;
+// see the LICENSE file for more details.
+//
+// Author: Cédric CHEDALEUX <cedric.chedaleux@orange.com> et al.
+
+#ifndef CPUMONITOR_H_
+#define CPUMONITOR_H_
+
+#include <string>
+#include <vector>
+
+using namespace std;
+
+namespace uprofile
+{
+
+class CpuMonitor
+{
+public:
+    explicit CpuMonitor();
+    virtual ~CpuMonitor();
+
+    vector<float> getUsage();
+
+private:
+    static size_t getNumberOfCPUCores();
+    static void extractCpuTimes(const string& cpuInfo, size_t& idleTime, size_t& totalTime);
+
+    // Store the last idle and total time for each CPU
+    vector<size_t> m_lastIdleTimes;
+    vector<size_t> m_lastTotalTimes;
+
+    size_t m_nbCpus;
+};
+}
+
+#endif /* CPUMONITOR_H_ */