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			21 lines
		
	
	
	
		
			572 B
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			21 lines
		
	
	
	
		
			572 B
		
	
	
	
		
			C++
		
	
	
	
	
	
| #pragma once
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| 
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| #include "CharacterDevice.h"
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| 
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| class NullDevice final : public CharacterDevice {
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|     AK_MAKE_ETERNAL
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| public:
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|     NullDevice();
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|     virtual ~NullDevice() override;
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| 
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|     static NullDevice& the();
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| 
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| private:
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|     // ^CharacterDevice
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|     virtual ssize_t read(Process&, byte*, ssize_t) override;
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|     virtual ssize_t write(Process&, const byte*, ssize_t) override;
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|     virtual bool can_write(Process&) const override { return true; }
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|     virtual bool can_read(Process&) const override;
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|     virtual const char* class_name() const override { return "NullDevice"; }
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| };
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| 
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