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										 |  |  | /*
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							|  |  |  |  * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org> | 
					
						
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										 |  |  |  * SPDX-License-Identifier: BSD-2-Clause | 
					
						
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										 |  |  |  */ | 
					
						
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										 |  |  | #pragma once
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										 |  |  | #include <sys/time.h>
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										 |  |  | namespace Core { | 
					
						
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							|  |  |  | class ElapsedTimer { | 
					
						
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										 |  |  | public: | 
					
						
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										 |  |  |     ElapsedTimer(bool precise = false) | 
					
						
							|  |  |  |         : m_precise(precise) | 
					
						
							|  |  |  |     { | 
					
						
							|  |  |  |     } | 
					
						
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										 |  |  |     bool is_valid() const { return m_valid; } | 
					
						
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										 |  |  |     void start(); | 
					
						
							|  |  |  |     int elapsed() const; | 
					
						
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										 |  |  |     const struct timeval& origin_time() const { return m_origin_time; } | 
					
						
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										 |  |  | private: | 
					
						
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										 |  |  |     bool m_precise { false }; | 
					
						
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										 |  |  |     bool m_valid { false }; | 
					
						
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										 |  |  |     struct timeval m_origin_time { | 
					
						
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										 |  |  |         0, 0 | 
					
						
							|  |  |  |     }; | 
					
						
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										 |  |  | }; | 
					
						
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							|  |  |  | } |