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		1		/********************************************************************
		2		KWin - the KDE window manager
		3		This file is part of the KDE project.
		4
		5		Copyright 2019 Roman Gilg <subdiff@gmail.com>
		6
		7		This program is free software; you can redistribute it and/or modify
		8		it under the terms of the GNU General Public License as published by
		9		the Free Software Foundation; either version 2 of the License, or
		10		(at your option) any later version.
		11
		12		This program is distributed in the hope that it will be useful,
		13		but WITHOUT ANY WARRANTY; without even the implied warranty of
		14		MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		15		GNU General Public License for more details.
		16
		17		You should have received a copy of the GNU General Public License
		18		along with this program. If not, see <http://www.gnu.org/licenses/>.
		19		*********************************************************************/
		20		#pragma once
		21
		22		#include <kwinglobals.h>
		23
		24		#include <QFile>
		25
		26		namespace KWin
		27		{
		28		namespace Perf
		29		{
		30
		31		/**
		32		* Provides an interface to mark the Ftrace output for debugging.
		33		*/
		34		class FtraceMarker : public QObject
		35		{
		36		Q_OBJECT
		37		public:
		38		virtual ~FtraceMarker() = default;
		39
		40		bool setEnabled(bool enable);
		41		void print(const QString &message);
		42		void print(ulong ctx, const QString &message);
		43		void print(const QString &message, ulong ctx);
		44
		45		private:
		46		bool findFile();
		47
		48		QFile *m_file = nullptr;
		49
		50		KWIN_SINGLETON(FtraceMarker)
		51		};
		52
		53		}
		54		}