feat add profiling

include/sled/profiling/profiling.h

@@ -0,0 +1,49 @@
+#pragma once
+#ifndef SLED_PROFILING_PROFILING_H
+#define SLED_PROFILING_PROFILING_H
+
+#include "sled/system/location.h"
+#include <fmt/format.h>
+#include <string>
+
+namespace sled {
+class Profiling {
+public:
+    static Profiling *Instance();
+
+    inline bool Started() const { return started_; }
+
+    bool Start(const std::string &file);
+    void Stop();
+
+    void TimeBegin(const std::string &name);
+    void TimeEnd(const std::string &name);
+
+    void StartProcessMemoryMonitoring(int period_ms);
+    void StartSystemMemoryMonitoring(int period_ms);
+    void StartCPUUsageMonitoring(int period_ms);
+    static void GetSystemMemory(int &total_mem, int &available_mem, int &free_mem);
+    static void GetProcessMemory(int &rss, int &shared);
+
+private:
+    bool started_ = false;
+};
+
+class FunctionSampler final {
+public:
+    inline FunctionSampler(const Location &location = Location::Current())
+    {
+        std::string filename = location.file();
+        key_ =
+            fmt::format("{}:{}@{}", filename.substr(filename.find_last_of('/') + 1), location.line(), location.func());
+        Profiling::Instance()->TimeBegin(key_);
+    }
+
+    inline ~FunctionSampler() { Profiling::Instance()->TimeEnd(key_); }
+
+private:
+    std::string key_;
+};
+
+}// namespace sled
+#endif// SLED_PROFILING_PROFILING_H