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8cbb7f101f
This will allow us to implement different behaviors depending on the role of the descriptor a File is being accessed through.
21 lines
600 B
C++
21 lines
600 B
C++
#pragma once
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#include "CharacterDevice.h"
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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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static NullDevice& the();
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private:
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// ^CharacterDevice
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virtual ssize_t read(FileDescriptor&, byte*, ssize_t) override;
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virtual ssize_t write(FileDescriptor&, const byte*, ssize_t) override;
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virtual bool can_write(FileDescriptor&) const override { return true; }
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virtual bool can_read(FileDescriptor&) const override;
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virtual const char* class_name() const override { return "NullDevice"; }
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};
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