rewrite profiler

examples/testbed/framework/json_profiler.h

@@ -0,0 +1,55 @@
+/*
+* Copyright (c) 2016-2016 Irlan Robson http://www.irlan.net
+*
+* This software is provided 'as-is', without any express or implied
+* warranty.  In no event will the authors be held liable for any damages
+* arising from the use of this software.
+* Permission is granted to anyone to use this software for any purpose,
+* including commercial applications, and to alter it and redistribute it
+* freely, subject to the following restrictions:
+* 1. The origin of this software must not be misrepresented; you must not
+* claim that you wrote the original software. If you use this software
+* in a product, an acknowledgment in the product documentation would be
+* appreciated but is not required.
+* 2. Altered source versions must be plainly marked as such, and must not be
+* misrepresented as being the original software.
+* 3. This notice may not be removed or altered from any source distribution.
+*/
+
+#ifndef JSON_PROFILER_H
+#define JSON_PROFILER_H
+
+#include <bounce/common/settings.h>
+
+#include <rapidjson/filewritestream.h>
+#include <rapidjson/writer.h>
+
+using namespace rapidjson;
+
+// The following profiler listener is notified by a profiler when events are initiated 
+// or terminated.
+// When it receives the notification it immediately saves its data into a .json file format.
+// The .json file can be read and interpreted by the Google Chrome Tracing.
+// Say chrome://tracing to the web browser and load the file
+// This file is by default called "profile.json". Any name can be given. 
+// For implementation details, see json_profile.cpp.
+class JsonProfiler
+{
+public:
+	JsonProfiler();
+	~JsonProfiler();
+
+	void BeginEvents();
+
+	void EndEvents();
+
+	void BeginEvent(i32 tid, i32 pid, const char* name, float64 time);
+
+	void EndEvent(i32 tid, i32 pid, const char* name, float64 time);
+private:
+	FILE * m_file;
+	FileWriteStream* m_stream;
+	Writer<FileWriteStream>* m_writer;
+};
+
+#endif