Differential D3129 Diff 14506 ps/trunk/source/ps/Profile.h

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ps/trunk/source/ps/Profile.h

	/* Copyright (C) 2019 Wildfire Games.			/* Copyright (C) 2020 Wildfire Games.
	* This file is part of 0 A.D.			* This file is part of 0 A.D.
	*			*
	* 0 A.D. is free software: you can redistribute it and/or modify			* 0 A.D. is free software: you can redistribute it and/or modify
	* it under the terms of the GNU General Public License as published by			* it under the terms of the GNU General Public License as published by
	* the Free Software Foundation, either version 2 of the License, or			* the Free Software Foundation, either version 2 of the License, or
	* (at your option) any later version.			* (at your option) any later version.
	*			*
	* 0 A.D. is distributed in the hope that it will be useful,			* 0 A.D. is distributed in the hope that it will be useful,
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	#include <vector>			#include <vector>

	#include "lib/adts/ring_buf.h"			#include "lib/adts/ring_buf.h"
	#include "lib/posix/posix_pthread.h"			#include "lib/posix/posix_pthread.h"
	#include "ps/Profiler2.h"			#include "ps/Profiler2.h"
	#include "ps/Singleton.h"			#include "ps/Singleton.h"

	#include <boost/flyweight.hpp>
	#include <boost/flyweight/key_value.hpp>
	#include <boost/flyweight/no_locking.hpp>
	#include <boost/flyweight/no_tracking.hpp>

	#define PROFILE_AMORTIZE_FRAMES 30			#define PROFILE_AMORTIZE_FRAMES 30
	#define PROFILE_AMORTIZE_TURNS 1			#define PROFILE_AMORTIZE_TURNS 1

	class CProfileManager;			class CProfileManager;
	class CProfileNodeTable;			class CProfileNodeTable;

	// To profile scripts usefully, we use a call hook that's called on every enter/exit,			// To profile scripts usefully, we use a call hook that's called on every enter/exit,
	// and need to find the function name. But most functions are anonymous so we make do			// and need to find the function name. But most functions are anonymous so we make do
	// with filename plus line number instead.			// with filename plus line number instead.
	// Computing the names is fairly expensive, and we need to return an interned char*			// Computing the names is fairly expensive, and we need to return an interned char*
	// for the profiler to hold a copy of, so we use boost::flyweight to construct interned			// for the profiler to hold a copy of, so we use boost::flyweight to construct interned
	// strings per call location.			// strings per call location.
	//			//
	// TODO: Check again how much the overhead for getting filename and line really is and if			// TODO: Check again how much the overhead for getting filename and line really is and if
	// it has increased with the new approach after the SpiderMonkey 31 upgrade.			// it has increased with the new approach after the SpiderMonkey 31 upgrade.
	//
	// Flyweight types (with no_locking because the call hooks are only used in the
	// main thread, and no_tracking because we mustn't delete values the profiler is
	// using and it's not going to waste much memory)
	typedef boost::flyweight<
	std::string,
	boost::flyweights::no_tracking,
	boost::flyweights::no_locking
	> StringFlyweight;

	class CProfileNode			class CProfileNode
	{			{
	NONCOPYABLE(CProfileNode);			NONCOPYABLE(CProfileNode);
	public:			public:
	typedef std::vector<CProfileNode*>::iterator profile_iterator;			typedef std::vector<CProfileNode*>::iterator profile_iterator;
	typedef std::vector<CProfileNode*>::const_iterator const_profile_iterator;			typedef std::vector<CProfileNode*>::const_iterator const_profile_iterator;

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