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b896d4b237
This way we don't buffer ungodly amounts of output in the kernel when doing e.g "cat /dev/random" on a PTY.
33 lines
896 B
C++
33 lines
896 B
C++
#pragma once
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#include <Kernel/CharacterDevice.h>
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#include "DoubleBuffer.h"
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class SlavePTY;
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class MasterPTY final : public CharacterDevice {
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public:
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explicit MasterPTY(unsigned index);
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virtual ~MasterPTY() override;
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// ^CharacterDevice
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virtual ssize_t read(Process&, byte*, size_t) override;
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virtual ssize_t write(Process&, const byte*, size_t) override;
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virtual bool can_read(Process&) const override;
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virtual bool can_write(Process&) const override;
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virtual bool is_master_pty() const override { return true; }
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unsigned index() const { return m_index; }
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String pts_name() const;
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void on_slave_write(const byte*, size_t);
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bool can_write_from_slave() const;
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private:
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// ^CharacterDevice
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virtual const char* class_name() const override { return "MasterPTY"; }
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SlavePTY& m_slave;
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unsigned m_index;
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DoubleBuffer m_buffer;
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};
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